This is what KZitem was made for. Information by enthusiastic people teaching about obscure things that you would have difficulty specifically researching or even finding unless you're interested in it already. Beautiful.
@ola12ification
5 жыл бұрын
And cats. Please don't forget cats.
@catgirlsleepy
5 жыл бұрын
Tldr KZitem A place where you learn most your stuff. Not school
@dariuskikstra3994
4 жыл бұрын
Herman Manly don’t forget the almighty algorithm
@compositebow151
4 жыл бұрын
Yeah It was made for this stuff, not little kids You hear me COPPA
@kougerat5388
4 жыл бұрын
I could not have put it better.
@larrywestenberg7839
4 жыл бұрын
You are an excellent "natural teacher." You communicate an attitude of, "Hey! Check this out!" and it keeps me interested. You did a great job of showing me where and how this thing works. I write training for a living. You really have a talent for this!!
@OldTooly
3 жыл бұрын
All of our (now antique) Peerless Roll Leaf machines used a Geneva drive to index the next bottle into printing position. They ran 3 shifts for over 30 years with nothing more than a touch of grease from time to time. The were a quality cast iron construction and were fitted so closely that there was a very minimal orientation error that never seemed to increase over time. A truly remarkable design. Later machines used Camco Units and were very good as well but still a step down from the ultra simple Geneva drives. As a 5 year apprentice Tool Maker I was given the task of building one of the Peerless machines from a pile of scrap machine parts which required making a Geneva drive from scratch and rebuilding all the other moving parts with brass inlays and braze-ups and refit. No time limits (that I knew of) and a few weeks later I presented the finished machine to the General Manager of the printing department. He and his setup people and operators went over it with a fine tooth comb and gave me a thumbs up. The old Tooly's I was training under all gave me a round of applause when I came back to the department, a hand shake and an atta boy. One of the proudest moments of my 47 years as a Tool Maker. All manual machines and hand tools. Computers hadn't been invented yet except in big research facilities. I'm not sure that today's machinists will ever have any experience like that. For that I am truly sad.
@markprice5061
6 жыл бұрын
The Geneva drive is used in the 7.62mm and 30mm chaingun that is fitted to many armored fighting vehicles and helicopters.
@neurofiedyamato8763
6 жыл бұрын
Huh I was trying to think of one but I never thought it would be for a cycling rounds
@markprice5061
6 жыл бұрын
The firing mechanism has remained unchanged and still relies on the same principles. Feed (cock) load (lock) fire (unlock) extract (eject). This is the same across bolt action rifles and electrically operated chain guns.The latter uses a chain which is fitted with a cam that runs across a rectangular path and works along side a Geneva drive to control dwell time between firing rounds.
@MrRedeyedJedi
5 жыл бұрын
mark price the 20mm as well
@anonybunny2543
3 жыл бұрын
The Geneva Suggestion
@circularfile68
3 жыл бұрын
And prior to all the electrics, was/is used in the hand-cranked Gatling gun, with mechanical advantage from a crank substituting for a motor.
@JustinBishop97
7 жыл бұрын
This is the pure side of KZitem. I enjoy
@MakersMuse
7 жыл бұрын
Thanks man! I try to keep things somewhat useful :)
@m.jailam8861
7 жыл бұрын
did you just assume his gender!!!!11oneone lol sorry
@jimshockey6789
7 жыл бұрын
Wha'?! Whoa! Did you just use the term "gender?" :o}
@ThornyUke
7 жыл бұрын
Jim Shockey im sooo offended at these gender assumptions, now I need to retreat to my safe place and from there I will book some therapy to get me through this HUGE traumer.
@KnakuanaRka
7 жыл бұрын
steve thornton Really? If you're planning to somehow bar us from making such innocuous statements, as I have observed people like you doing, than you will be causing far more pain than if you simply withstood these imagined offenses, or even better, understood them for what they truly were: an effort to control others so that you can avoid having to grow a spine.
@ugh4719
7 жыл бұрын
that blows my mind! i've always wondered where the clicking sound in old film projectors came from
@Lumibear.
7 жыл бұрын
IKR, one of those facts that change how you think about things, I always thought it was a shutter.
@PKMartin
7 жыл бұрын
Ironically I believe the shutter in a film projector was essentially silent because it was basically a fan wheel that rotated, intermittently blocking the light through the lens, not touching any other components so not making any noise.
@thegooserider7245
7 жыл бұрын
Stephen Baldassarre always an expert about
@andrewbarnum5040
7 жыл бұрын
FYI, sorry he is wrong about the sound. the projector is silent when there is no film in the projector. Film projectors require a upper and lower loop which is a buffer area. The loops flap which is the cause of the sound you associate with a film projector. This thing he is showing in this video is called the intermittent sprocket and is found only in professional film projectors, mostly 35mm and 70mm. 16mm and 8mm use a claw system.
@m.k.8158
7 жыл бұрын
Actually, really professional 16MM machines use a intermittent sprocket as well...I used to be a Projectionist, and I actually ran a few 16MM machines with a intermittent sprocket. Some manufacturers that made these were Norelco, Zeiss, and Kinoton.
@ContinuumOfHarmony
3 жыл бұрын
Military use: syncing weapons fire with the propeller blades of an air craft so pilots could aim using the main body of it.
@robertrosenthal7264
3 жыл бұрын
An interrupter gear. I don't know if it's a variant of a geneva drive or not, I haven't seen one, just know a little about it's history.
@yaboidustin2447
3 жыл бұрын
That's interesting, thanks for the knowledge
@KiGh_Music
3 жыл бұрын
That's actually just a simple cam and follower mechanism, letting the gun trigger whilst there is no propeller blade in front of it.
@nojman89
3 жыл бұрын
A wild guess is that this can be used in a revolver
@PurpleSky-px4lx
3 жыл бұрын
It was designed in the early 1910s by a french engineer for a fighter aircraft, in a patrol operation he encountered a german aircraft, but crash landed after a fatal damage in the wings, he tried to burn the plane so the germans cannot find his sync meccanism, but failed and was taken as a war prisoner and her invention was mass produced for the new fokker airplanes. Interesting history...
@Fairburn3D
6 жыл бұрын
25 mm Bushmaster Cannon. Firing cycle of operation...Sear, Feed, ram, Fire, "Dwell", misfire, extract. Common Weapon System on Light Armored Vehicles.
@neurofiedyamato8763
6 жыл бұрын
Huh I didn't know that, cool
@stonerayven2455
6 жыл бұрын
Its only in the feed though The barrels are chain driven but yes hes right
@Gareth04100
6 жыл бұрын
Mk44, M242 and M230
@dufasduck
6 жыл бұрын
Automatic candy wrapping machines also use it...........
@Blight313
6 жыл бұрын
That’s the 242 right? Worked on them before, sometimes the feed is a huge pain
@xader.s6603
7 жыл бұрын
i have not watched ANYTHING related to this video yet for some reason it Recommended this to me fine youtube you win
@stenky02
7 жыл бұрын
Stefan Sampang Never click on recommended video it will just recommend you more simmilar videos...
@xader.s6603
7 жыл бұрын
oh no....
@columbus8myhw
7 жыл бұрын
+Clash You say that like it's a bad thing
@xader.s6603
7 жыл бұрын
The Whalens "who cares what is recommended to you? Move on, loser." clearly you do since you're telling me to move on and plus the insult means you put in emotions in it therefore you do care about the recommended because you are said to me "Move on,loser" and if you really do not care you would have left this alone but no, you just had to say how much you *cough* "dont care" *cough* and also for you're information look at the likes and tell me straight in the face "who cares" stop trying to be cool and show the world how much you dont care when in reality your clearly care also "what is recommended to me?" well it's how i can find cool and awesome videos some channels i would have never find without it and it's very good to me but this video tho has nothing related to ANYTHING i watched yet it poop up even after i put a "not interested" on it so tell me also straight in the bloody as face! "what is recommended to you" but when am looking at this you seems to don't care about what is recommended to you, maybe it's because you "don't care" *cough* ohhh please.....
@stenky02
7 жыл бұрын
columbus8myhw it is bad thing if you don't like that type of videos...
@Inesophet
7 жыл бұрын
KZitems algorythm got better, i didnt even know im interested in this...but well. Now i do.
@Allexz
5 жыл бұрын
While you are right, the algorithm took a year longer to find me :D
@user-mn5ee3ur4n
5 жыл бұрын
@@Allexz LOL
@jamesmccrary7778
5 жыл бұрын
@Inesophet you are absolutely right, KZitem keeps track of the videos you watch to create a profile of what you like for recommendations, but on a more creepy side, site's like Fakebook actually watch your facial expressions through your camera, with facial recognition technology. They also listen to you talk through your microphone . They then build a profile of things you like, dislike, interested in, ect, and they sell it..... This is also why you can (talk only) about something and then see it in a ad on fakebook or in a suggested Google search seconds later. ⚠️ 🙊🙈🙉 ⚠️
@GodGurdjieff
3 жыл бұрын
Mind reading algorithmic AI😂
@ninjasocks6823
3 жыл бұрын
@@Allexz took me 3 years longer lol
@Ncyphen
7 жыл бұрын
As a former projectionist, I can tell you that the sound from modern film projectors was not caused by this drive. If you ran the projector drive, you hear a slight clatter, as to be expected of the intermittent rollers. Most of the clacking actually came from the film expanding and shrinking due to the intermittent gear. When a projector is threaded, a small excess loop is left above and below the aperture, as the project feeds film into the projector continuously; however, the film has to stop for the slit second light hits the aperture to create a clear picture on the screen. The loops above and below the aperture expand and shrink rapidly due to this stopping motion and create the known sound of the projector clacking.
@SternLX
6 жыл бұрын
And you always knew when the loops were too small. It would get stupid loud. Nothing annoyed me more when someone would thread one for me and not leave me any clear leader to check the loops before runtime. More often than not they would leave me with the head of the first trailer in the gate.
@Electron1944
6 жыл бұрын
and the intermittent sprocket is controlled by the 'cross box' with is a four slot version of this drive. Film sound, both optical and magnetic, runs at a constant speed, normal 'standard' for 35mm film is 24 frames per second.
@isaacdavid765
6 жыл бұрын
thanks Tyler Durden
@giricredwolf
5 жыл бұрын
I worked in a theatre with a film projector (a sort of "sensurround" theatre in a theme park) and most of the clatter on it was from the shutter between the lamp and the film. Before observing the operation, I had no idea that some projectors (if not all) had a shutter mechanism. (For those reading this who don't know, this smooths the image so you see flashing pictures rather than a massive streaked blur.)
@RichardCox0
5 жыл бұрын
thank you very interesting :)
@JustinBarylski
6 жыл бұрын
Why was this in my recommended, why am I watching it and why do I like it so much? I suddenly have a huge fascination with gears and simple machines like this...
@Bnkrobber
3 жыл бұрын
and 3D printers, now I want a 3D printer, and a lab, and........
@WCM1945
3 жыл бұрын
@@Bnkrobber A 3D printer would make a really shitty geneva drive. You need a well equipped machine shop and a very skilled machinist.
@nullsnaggle5198
3 жыл бұрын
@@WCM1945 or a cnc lathe...and a 3d modelling software...
@nullsnaggle5198
3 жыл бұрын
Your pfp really reflects your comment
@artoheino7315
7 жыл бұрын
Never out dated, just another great idea created because it was needed.
@TheTopMostDog
7 жыл бұрын
Outdated in the sense of being replaced by a better version. Still a great innovation that encourages future inventors to think outside the box.
@bikerusl
7 жыл бұрын
What version replaced this? It's a mechanical invention. Are you just saying that mechanical has been replaced by digital? It hasn't been replaced. It's more popular and has replaced in some areas only. It will never make sense in all areas.
@tompinion4138
7 жыл бұрын
Fascinating. I love how your channel is so packed with information. Very entertaining.
@jasonreed1352
6 жыл бұрын
Much of the sound you hear in a film movie projector is the sound of the film being quickly advanced to the next frame by this mechanism as well as the shutter opening when the next frame on the film has been positioned briefly before being snapped closed again so the film can be advanced another frame. The film is kept with a certain amount of slack before the frame that is currently being shown on the screen. When the mechanism advances to the next frame, this slack is temporarily taken up, making the loudest contribution to the sound you hear when a move projector is playing a reel of film. This is why the projector is much quieter when you first turn it on to feed the film through the projector. The Geneva drive is still operating, but once the stiff film is fed through, the film its self makes all of the racket the way it is handled by the Geneva drive mechanism. Thank you fire sharing! I learned something new today! :)
@karthick86c
7 жыл бұрын
I am a Mechanical engineer myself and here I was thinking I knew everything there is know about Geneva mechanism. Boy, was I wrong. Much respect to the research put into making this video.
@jerrylong381
7 жыл бұрын
I used to repair machinery that assembled trigger sprayers, ( think windex or 409 cleaner). Some of them used a Geneva wheel to place the cap in position. A very robust and elegant mechanism. They very rarely needed repair. The pin was a roller so not much problem with wear. 1 cycle per second 24 hours a day.
@wmweibel
7 жыл бұрын
I was just wondering the same thing about mounting the pin on a bearing. It seems like that would eliminate the wear problem entirely for most applications.
@wmweibel
7 жыл бұрын
Toolman329 Agreed. My use of the word "entirely" was an exaggeration. But, it would be interesting to see data on cost vs MTBF for such a solution.
@wordedon
7 жыл бұрын
William Weibel I'm thinking: how about the device being created with a few polymers. Polymer example being 3D printing filaments. Specific properties for each part required, could be achieved using the correct 3d filament for each part. Nylon 3d filament for example; is a 3d filament polymer. The use of this kind of material(s) for the parts that make up the assembly of the "Geneva joint" (whichever one you use as the video lists a few examples of them from watch parts) would probably aid tremendously to the length of time the assembly would operate without maintenance. Also, As you suggested; I too would be very interested in the testing of of various complex joint assemblies with solutions only possible with today's technology. :-)
@KarmaTiger
6 жыл бұрын
Or coat the pin in a slick polymer, like one from the teflon family, and chrome the lining of the stays.
@leandrog2785
6 жыл бұрын
1 cycle per second is extremely slow. The video mentioned "hundreds of rpm". If the geneva wheel is only durable at 1 cycle per second or similarly small speeds, then it can be considered a very undurable mechanism.
@shafey
7 жыл бұрын
I really like those 'Look at this nifty mechanism!' videos you make. Like the one about the not-a-crank crank.
@Flame6332
7 жыл бұрын
Ayyy, extra credits boiiii
@shafey
7 жыл бұрын
Yeeeah, dude!
@65CJ5
3 жыл бұрын
I repaired film 8mm and 16mm projectors for many years. I saw the Geneva movement only in a few high-end theater-style 16mm projectors. Compared to the more common mechanisms in most other projectors, I found the Geneva mechanism much less prone to wear and problems than the common cam and follower setups in other machines. Geneva was a lot easier to fix too. If you think the Geneva movement is "violent," you should see the cam and follower stuff in other 8mm and 16mm units! Most of those wore out very quickly. Cams, followers, belts and rubber idlers were the bulk of what I had to replace regularly. Sound and lighting (especially xenon arc) were also problem areas.
@chalinofalcone871
3 жыл бұрын
"Such is also the harsh logic of industrial automation. All that we had previously achieved mechanically by great exertion and coordination can now be done electrically without effort. Hence the specter of joblessness and propertylessness in the electric age. Wealth and work become information factors, and totally new structures are needed to run a business or relate it to social needs and markets." [Understanding Media, Marshall McLuhan, 1964, Ch. Automation]
@MakersMuse
3 жыл бұрын
Huh, great quote.
@howard494
7 жыл бұрын
In regards to military use, Australian inventor Arthur Bishop utilized the Geneva Mechanism in his tail wheel strut for the Bristol Beaufort Bomber which was in use by the RAF during WWII. The book Driven by Ideas: The Story of Arthur Bishop, a Great Australian Inventor by Clare Brown talks about this in greater detail and includes photos of the gearing used.
@JonathanWinterflood
7 жыл бұрын
makes sense! it doesn't move often, and the locking effect is very strong, just what you want in landing gear!
@moyadapne968
7 жыл бұрын
A clever guy, Arthur. His design was adapted to Adwest power steering for cars. Jags etc. Nice to use.
@fustigate314159
7 жыл бұрын
This is some very specific knowledge!
@howard494
7 жыл бұрын
thanks! after not finding what i was looking for in google, i switched over to periodical databases and found this book.
@cockiesun
7 жыл бұрын
What periodical databases might that be?
@ben1saacs546
7 жыл бұрын
Military use: drum autoloader in a tank
@dejayrezme8617
7 жыл бұрын
Or machine gun?
@Josh-oe4ex
7 жыл бұрын
I've had a brand new 3d printer sitting in its box for over 18 months now. It was a gift that i wasn't interested in. Ya know, i might just go ahead and start learning it. Thanks man, very neat video!
@sergiobdbd
3 жыл бұрын
I stumbled upon this after falling in a youtube-suggestion black-hole but, holy shit, this is one of the best educational videos I've seen in ages. Detailed explanations and lots of context. Congrats!
@MakersMuse
3 жыл бұрын
Thanks ! Glad you made your way to this vid haha
@ltcdatapablo
7 жыл бұрын
Seee???!?!? there is more interesting things to print than fidget spinners!!!
@kodiak1010
7 жыл бұрын
Pablo Castaño Boom. Geneva drive fidget spinner.
@procactus9109
7 жыл бұрын
Apparently even retards get bored, Who would have thought.
@ltcdatapablo
7 жыл бұрын
hahahhahah, ur right!
@utetrahemicon
7 жыл бұрын
A Geneva on each of the three axis for a sloth.
@hakusansaku8800
7 жыл бұрын
Blasphemy !!!
@Mike28625
5 жыл бұрын
As a protectionist on Christie protectors, we called the intermittent gear the Star Drive lol 😆
@mongowildman
4 жыл бұрын
Some years back, I worked on a machine that used a Geneva mechanism. This was an indexing drive that would advance a conveyor one step for each revolution of the main shaft. It was a cammed slot design in a cardioid pattern. As one had two cam followers and the drive plate had the slot. The machine was an AMF 3-175 bread wrapper.
@RoboRobotnik
7 жыл бұрын
If you're looking for military application, the rotating-barrel gatling gun spins to reduce heat wear on the barrel and uses a similar mechanism to hold the barrels in place while the bullet is traveling through it, rotating to the next barrel once it's clear.
@tergy
7 жыл бұрын
Cool? Yes! Entertaining? Yes! Handy to know? No! Hotel? Trivago!
@conchubhar9492
7 жыл бұрын
TheRedGhost sly undercover advert in your meme
@SireSquish
7 жыл бұрын
Hail Corporate.
@poisonnettle9521
7 жыл бұрын
Good to know if you want to build/repair a multi tiped machine like he showed
@Claeys67
7 жыл бұрын
As if we haven't seen those adds enough on tv, they'll start to invade YT comments now, too lol
@tim0lmazan162
6 жыл бұрын
Well that's gay...
@killermetalwolf2843
3 жыл бұрын
me: *sees title* me: what section of the geneva convention does this break?
@douglas8568
3 жыл бұрын
The Attrition Rate parameters!
@MadaraUCHIHA-hy9xe
3 жыл бұрын
😂😂😂😂
@TacDyne
3 жыл бұрын
Look up 17:02 Nipples in the convention.
@128ajb_02_Music
3 жыл бұрын
Geneva convention? More like Geneva suggestions
@Xidphel
3 жыл бұрын
Me: *sees title* Me: Oh. So it's just a suggestion.
@mandy2tomtube
3 жыл бұрын
I worked for a company that built automation machinery most of our machines were built around a central rotary indexer normally came with eight or 12 stops and yes they referred to stops as dwell period The speed between dwell points was controlled by the speed of a gear motor that Ranett as well as the off. Controlled by a PLC The accuracy was 1/10 of 1000’s and they would supposedly run for 10 or 20 years without wear and I have seen the inside and they used this type of mechanism I believe they were Camco light blue About 150 pounds filled with mineral oil and if I’m not mistaken back in 1990 they were made in California I never ordered one but I Machined the tables assembled them for automation applications I was the guy who got to manually machine every single part assemble and debug We did have a very old CNC back in the 90s but manual machining for one-off parts is quicker for 95% of the parts we made.the guy who handed me the drawings had to every version of AutoCAD from two through 14
@calibour37
3 жыл бұрын
I'm Maltese and i didn't even know about this ! Fantastic vid , learned something new.
@computerfrenzy098
7 жыл бұрын
In the sr-71 blackbird (world's fastest plane) used these to changed film roll for a 2 mile long film roll.
@Bialy_1
7 жыл бұрын
"North American X-15 This aircraft has the current world record for the fastest manned aircraft. Its maximum speed was mach 6.70 (about 7,200 km/h) which it attained on the 3rd of October 1967 thanks to its pilot William J. “Pete” Knight." sr-71 blackbird speed is like 50% of world record... but hey at least u trayed and plenty of people bought that! :P
@JLHunter61
7 жыл бұрын
Bialy I believe that Computerfrenzy probably was referring to airbreating, production aircraft. The "X" on any airframe refers to its experimental status, whereas the "SR" classification referred to an airframe that was was NOT experimental, but was instead a "Strategic Reconnaissance" aircraft. Also, the SR-71 IS the fastest airbreating aircraft in the world, and still holds many speed records until this day. If the new SR-72 ever goes into production, it will likely overtake the SR-71 in every respect, but until that day arrives, the SR-71 still reigns supreme.
@dota9925
7 жыл бұрын
The X-15 appears to be more of a manned rocket than a plane, and used as an experimental craft for learning more about applied physics at those kinds of extreme speeds as well as reaching outer space (how does one steer without wind drag over control surfaces, etc..). The SR-71 was, by comparison, a successful production craft. As such, probably fair to call the SR-71 the fastest _production_ airplane (declassified). ;)
@JLHunter61
7 жыл бұрын
D otA Yes. And that is essentially exactly what I said in my post above, in which I explained that the "SR" designation was used for PRODUCTION airframes, and meant "Strategic Reconnaissance" aircraft. Also, a very important distinction is that the X-15, in which the "X," by comparison, stood for "Experimental," was not an air-breathing airframe. It was a manned, small capacity (by comparison to other rockets) rocket ship, whereas the SR-71 was an air-breathing, bat-out-of-Hell go-getter. It's unofficial record of Mach 3.5+, in an evasion maneuver to avoid a bevy of SAMs coming its way over Libya circa 1985 (or was it 1986?) highlighted the peak performance of the Pratt & Whitney J58 engines, which could churn out as much as 150,000 kNs at altitude.
@MiggyManMike
7 жыл бұрын
I can see that being used in ammo loaders.
@CeeKayz0rz
7 жыл бұрын
Ammo loading is usually just lever or ratchet action induced by the weapon itself. Think revolver cylinders...
@MiggyManMike
7 жыл бұрын
I was thinking more taking a round off of a rack and placing it inline with the chamber to be inserted rather than the act of loading it into the chamber. I wasn't really considering hand guns in all honesty.
@alexanderheintz6834
7 жыл бұрын
CK's channel. your a child charlie brown... revolver cylanders no our friend is correct it comes off a rack and loads it to the chamber, secrurely places it inside the chamber and fires it
@sunnygunni3959
7 жыл бұрын
German Luger used something similar to this
@DavidHHermanson
7 жыл бұрын
The Model 1862 Gatling used a Geneva gear shape for it's loader. Obviously, it wasn't a gear. It had no timing or "stop motion" functions. Richard Gatling had used a similarly shaped device for a wheat planting device dating to 1839. The thickly cut "Geneva" wheel carries the paper or brass shell in the slot, and the outer surface is convex rather than concave. It's # 5 in the patent drawing found here: www.google.com/patents/US36836 . By 1893, Gatling had developed an electrically powered version of the gun that was supposedly capable of 3000 rounds per minute. it's amazing to see the increased complexity between the two weapons. The patent drawings for the 1893 gun can be found at: www.google.com/patents/US502185 .
@ianconn951
6 жыл бұрын
20 seconds in, I knew this would be an interesting channel. Thanks, man.
@bveracka
7 жыл бұрын
As a huge fan of 8mm film projectors and a total nerd myself, I'm happy that I now know where that classic clicking is coming from. Here I was thinking it was the perforations on the edges of the film hitting the guiding gears; how ignorant of me! Wicked cool little bit here, and obviously a very historic one as well.
@TheDarknessConsumesMe666
7 жыл бұрын
2:58 *DUDE!* I could've sworn an ad was going to play 😂
@justinbellotti7838
7 жыл бұрын
There are Geneva Mechanisms in disposable cameras to keep the user from over winding.
@jackparkinson2263
7 жыл бұрын
Justin Bellotti Geneva stop*
@Benedictwesson
6 жыл бұрын
Penis*
@jasonhamilton5756
3 жыл бұрын
Gatling guns and revolvers use indexing mechanical drive mechanisms. Machine guns on old propeller planes had a mechanical index interlock that kept bullets from hitting the propeller and causing damage. Belt fed machine guns also use indexing mechanisms to bring each new round into the breach. This is also how chain fed CNC tool indexes work. Had a 100 tool changer on a Nagata horizontal mill at a place I worked several years ago and that chain used exactly the type of drive index you show to bring each tool carrier into position for the crazy fast tool changes. Thousands of applications for this.
@kyleanderson9281
7 жыл бұрын
As far as military use, this type of drive is used to rotate the multiple barrels on a gatling gun. They need this too, as each barrel needs to be in place for a set amount of time for the bullet to get all the way down the barrel before it moves.
@fit4ever247
7 жыл бұрын
Great video. I love the extra information.
@JTA1961
3 жыл бұрын
L00ks like that someone thought it up in the "spur of the moment"
@jamesberwick2210
3 жыл бұрын
We used one in aircraft navigation equipment, the antenna had to switch wave guides and used a Geneva drive. First thing we did troubleshooting the aircraft for problems, put our ear to the cargo bay and listen for the "clack" of the Geneva gear.
@kaibroeking9968
5 жыл бұрын
As for a military application, I have come across a magnification changing setup from a tank periscope: the changer is a drum with three positions that brings a different lens combination into the light path and has to do so very exactly.
@Doc_Dolan
6 жыл бұрын
Very similar to the feeder drive mechanism on a 3"50 Twin Anti-Aircraft Naval Gun with "star wheel" manual loaders for each barrel.
@suptjud
7 жыл бұрын
The IBM 514 and 519 card punch machines used a geneva drive to advance the card and hold it while the punch was driven into the card.
@gordon4385
7 жыл бұрын
Terry Judkins Dude, that is OLD school, much like me lol
@volkscom
6 жыл бұрын
Terry Judkins No they don't.
@RealDjMarkuZ
6 жыл бұрын
Good fact
@oliverklozhoff
6 жыл бұрын
they also helped the Nazis categorize Jews and other POWs
@coopgaming1514
6 жыл бұрын
Terry Judkins you are thinking of the Geneva STOP
@mtnbkr5478
3 жыл бұрын
One of the few channels where I actually learn something new on a regular basis. Thank you!
@dianamccandless7094
2 жыл бұрын
I *SO* needed to learn this for my invention! Thank you! You are an EXCELLENT teacher!
@MakersMuse
2 жыл бұрын
You are so welcome!
@UnlikelyCreators
7 жыл бұрын
Instant classic Makers Muse video. Hacksmith dude! Now that's awesome he commented!
@remoapeter
7 жыл бұрын
The Geneva stop's purpose is not prevention of overwinding a watch mainspring. Actually, the "overwound" spring is a myth. Mainspring breakage is by fatigue. If you intentionally try to overwind a watch, anything in the winding mechanism will break before the spring, probably including that stop! No, the stop was there to eliminate the very weak and the very strong torque of the spring at the beginning and end of winding. Out of 6 possible turns of the barrel, only 4 were used. The spring is "set up" one turn and stopped at the 5th. In this way, the spring is used where it gives the least variation in torque. Earlier watch movements were more sensitive to torque fluctuation, making their rate erratic. Modern mechanical movements have overcome this flaw almost completely by various means, so the stopwork is no longer needed.
@johnsomerset1510
6 жыл бұрын
What absolute BS! "No, the stop was there to eliminate the very weak and the very strong torque of the spring at the beginning and end of winding." That's RUBBISH! The ingenious backward and forward movement of the escapement mechanism (pendulum or wheel)allows for the varying spring force. That's the whole point of it!!!!! That's why spring powered clocks tick loudly when fully wound and softly when running out, but still keep correct time until they stop.
@bjort9619
6 жыл бұрын
Jesus Christ, I just can't...
@highlandrab19
6 жыл бұрын
Remo Peter overwinding the spring doesn't break it but it does cause them to lose most of their tension. Thats why a lot of old clocks and watches tend to only run for a few hours before needing wound again
@obi-wankenobi9871
6 жыл бұрын
And when does a spring break from fatigue? If its overwound agin and agin.
@michaelbauers8800
6 жыл бұрын
John Somerset - While it's true that a mechanical wristwatch can handle the varying torque from the main spring unwinding, I believe some of the most accurate pocket watches used a fusee to even out the force of the main spring. I am no expert, but I would not call the varying force a feature, but rather an engineering challenge that needs to be dealt with.
@verbal03
6 жыл бұрын
You have restored my faith in humanity, well maybe just youtube, but it's a start.
@10ringcraigdaniels62
7 жыл бұрын
I think this is an an example of how this was used in Military applications look in the center of a revolver's cylinder. The system works with a two piece "Geneva device" that as the hammer goes back the pin comes up rotating the cylinder for the next round to fire.
@ludditeneaderthal
7 жыл бұрын
The great grand daddy of the sprag clutch, lol. The useful duties for the mechanism are low speed, or incredibly low mass parts (the tool caddy indexer, and the projector aperture/sprag respectively). Granted, not incredibly suited to cnc mill operations, but could probably find plenty of use in a pipe factory, or sawmill. As for military use, I humbly submit the breech mechanism of the Hotchkiss auto-cannon, a hand cranked mechanism used by navies world wide about a century and a quarter ago. You will also find them in rotating breeches of artillery, and lever operated "single leg" examples in vertical block sliding mechanisms for guns from Sharpe's buffalo swatters to modern field pieces. The "index detent" of the mechanism is nicely seen in Remington "rolling block" action of the 1860s, which was used by just about everybody at some time up until WW1. I call it "the age of cranks and cams" in arms design because such old ponies as this mechanism held the limelight and got all the girls in that era. Of course, those flashy knee action toggle joints sent them packing before long, lol
@atomicskull6405
6 жыл бұрын
A sprag clutch is a type of one way clutch (the other common one is the ramp roller clutch which is commonly (and incorrectly) called a "one way bearing"), it has nothing to do with indexed movement. All it does is allow a shaft to rotate freely in one direction and stops it from rotating in the other. This is useful when you need to apply power to a shaft from an intermittent power source while allowing the shaft to spin freely in one direction when power is not being applied. A common example of this is a bicycle. Also large RC helicopters use them on then main reduction gear. The gear that drives the tail rotor is fixed to the mainshaft of the rotor and the reduction gear between the motor and the mainshaft has a sprag or ramp roller clutch so that if the motor stops it will not act as a brake on the rotor system and it will be possible to auto rotate to a safe landing.
@MadAussieMatt
7 жыл бұрын
Great video Angus, I like the way the channel is going!!
@richh1576
5 жыл бұрын
Excellent presentation. The knitting machine industry during the 1970s experimented with epicyclic cam follower profiles on the 'slot and pin' portion of the Geneva mechanism to eliminate the instantaneous acceleration in the Maltese cross design. The use of epicyclic profiles (aka- railroad curves) quickly moved to the kinematic based cam profiles that operated the latches on the knitting needles .... and with the result of those knitting machines could then operate at 10X faster speeds and with significantly less constant needle latch fractures.
@modelrailpreservation
7 жыл бұрын
In model railroading, this is a great way to have a turntable (A piece of track that spins on a center pivot, useful for turning locomotives around) stop at exactly the right spot every time. I have an older Atlas brand turntable that does use a Geneva mechanism to ensure the rails on the turntable line up with the tracks leading to the turntable pit. Geneva mechanisms do allow a good deal of precision, and if the rails are misaligned even slightly, the engine derails.
@That3DPrintGuy
7 жыл бұрын
WTF dude, this is too awesome and intellegant for a dumb toymaker like me. i really enjoyed this one, i gotta say for me this is one of my all time favourite of your vids. Awesome stuff thanks for all your efforts on this. as a watch collector i was geeking out on this!!!
@villie91
7 жыл бұрын
Henry Mayer Svarczkopf intelligent *
@wernervanrensburg8683
7 жыл бұрын
villie91 inniitelliganitelegant*
@villie91
7 жыл бұрын
Werner Van Rensburg elephant*
@wernervanrensburg8683
7 жыл бұрын
villie91 elegant intelligent elephant?
@germanaldaysalazar565
7 жыл бұрын
+Werner Van Rensburg elegant illuminati elephant.?
@stephenbaldassarre2289
7 жыл бұрын
Early film projectors? Try almost ALL film projectors.
@xxBooR4dleyxx
7 жыл бұрын
Can confirm, I've been a Cinema Projection and Sound technician for the last 14 years. These were part of the intermittent sprocket assembly for every 35mm projector I serviced right until they all went to the scrapyard during the digital projection rollout.
@stephenbaldassarre2289
7 жыл бұрын
Andrew Tetour Ah yes, the mob-like genocidal revolution that still brings me to tears.
@DFX2KX
7 жыл бұрын
eh, I suppose there's an old charm to them. But film cost a fortune, and it's not like too many people would have gone and bought them.
@CathodeRayTube99
7 жыл бұрын
Not quite. Cheaper projectors used a claw to advance the film; not good, could tear the film. Better projectors used this mech. Were always called maltese cross in projector parlance.
@ivarwind
7 жыл бұрын
Exactly - AFAIK some were made with stepper motors, but I never saw a 35 mm projector with anything but a Maltese cross. They only went out of use with the switch to digital. My engineering student friends were thrilled to see the schematics. The characteristic sound is not, however, from the mechanism - it's from the two loops of the film, one on each side, to allow the film to run smoothly through the rest of the machinery while being pulled frame by frame through the film gate, and you could hear at a distance if they were the right size. You'd have the same sound (or most of it) with a stepper motor.
@benji_is_XIII
6 жыл бұрын
You can be sure that Semi-automatic and fully-automatic Military weapons such as the SMG(sub-machine gun) use this device to re-fire the next bullet that has been reloaded into the chamber of the weapons' barrel, from the magazine. The device mostly works on the energy produced by the shell casing being ejected and therefor works towards the firing pin. This is the reason if you release the trigger, it will stop firing bullets.
@rom5285
3 жыл бұрын
The 16mm projectors made by Bell and Howell for educational and other uses did not use a Geneva. A swash plate moved the pins that engaged the film in and out of the sprocket holes. The stepping movement of the film into and from the frame aperture was controlled by two pins, one resting on each edge of a spinning constant-diameter "wheel". The variation in the radius of the "wheel" determined the distance required to move the film from frame-to-frame.
@freediugh416
7 жыл бұрын
OK KZitem I CLICKED IT NOW GET IT OUT OF MY SUGGESTIONS
@TheTopMostDog
7 жыл бұрын
Now you've just confirmed that its suggestion was relevant to your interests, so it will keep doing it.
@freediugh416
7 жыл бұрын
not if I sub and then unsub!
@AnastasisGrammenos
7 жыл бұрын
wow you broke youtube, you win, you so smart, i evny
@NathanTAK
7 жыл бұрын
+Free Diugh That's not how this works.
@sekkusupisutoruzu
7 жыл бұрын
MAH BOI
@sam08g16
7 жыл бұрын
Who cares about the military use? Tell me the sex application for the device.
@myview5840
7 жыл бұрын
Ivan Mazeppa auto circumcision
@viperfan7
7 жыл бұрын
Convert the rotational motion into linear motion, you now have something that thrusts in and out very quickly with a pause between. Why did I think of this I'll never know
@bikerusl
7 жыл бұрын
genital mutilation isn't sex
@NathanTAK
7 жыл бұрын
Attach rotational-to-linear motion converter to driven wheel. Affix phallic object. Insert into driven person. Spin. Bonus points for only using one lubricant in the whole contraption.
@NathanTAK
7 жыл бұрын
+viperfan7 (a) it's obvious (b) I don't think that's the exact form of motion you want; rapid, sharp thrusts don't seem pleasant, you want a smooth acceleration/deceleration to prevent injury. I assume.
@Jimjimjimjaboo
7 жыл бұрын
Some older gatling guns have a similar mechanism, where the firing pin is in a fixed location and the Geneva mechanism is essentially used to mechanically time when the firing pin mechanism triggers when a loaded barrel is in the proper position.
@faustin289
3 жыл бұрын
Thank you for giving me new knowledge that's I'll probably never use but still satisfying to learn.
@savaros1
7 жыл бұрын
Being Maltese, right away I'm like "That looks like a Maltese cross!"
@stevejordan7275
3 жыл бұрын
I suppose when Star Wars shows in theatres there, Han & Chewie drive the *Maltese Falcon?* Go ahead, roll your eyes. You know it's funny.
@sharonolsen6579
3 жыл бұрын
@@stevejordan7275 did roll... did laugh ... ; D
@Mercury13kiev
3 жыл бұрын
In Russian it is called “Maltese cross” or “Maltese mechanism”.
@KirillTheBeast
7 жыл бұрын
Boom! 10/10 educational and interesting content right there. That's a sub
@JeffSichoe
3 жыл бұрын
Good video - i'll be honest and say that was the first time i've actually listened to someone younger than me rather than dismissing off hand.
@bobbiestechincalstuff3170
6 жыл бұрын
The Brunswick A and the A-2 pinsetters for bowling used a pair of Geneva cams to shift the moving deck back and forth to allow for the setting of the bowling pins.
@willl655
7 жыл бұрын
On older Warships they use the Geneva drive the turning of the guns because they had to set them at a degree.
@abhinavshukla2202
3 жыл бұрын
Today it's used in nuclear bombs. It's all a game of timing in nuclear bomb cuz they have to decide the timing of explosion of first two isotopes.. There this mechanism is used
@TheBuckStopsHere480
6 жыл бұрын
Outstanding vid! Extremely interesting and contains tons of accurate, well-conveyed information.
@JTMC93
6 жыл бұрын
The Geneva Mechanism or a variant was used on World War II era tanks. Or at least some German Ones. Early Autocannons and smaller ones with lower rates of fire used a variant called a Geneva gear to time the mechanism for loading rounds. It was also used in some early Machine Guns to pull a ammo belt. One odd fact I know and have seen is it usually was lubricated/cooled by the same lubrication system as the vehicle or by the Water Cooling mechanism of the firearm. Oh and when used they were either insulated by metal or where around louder sounds like an engine or a firearm report.
@kentbyron7608
3 жыл бұрын
5 stars! Amazed by your enthusiastic and intelligent presentation. This one video took a lot of work! Equally impressed by the intelligent and interesting comments by the audience.
@waterunderthebridge7950
3 жыл бұрын
“Geneva Drive” sounds like a blackbox core system of some giant fighting robot
@davidwalesby2426
5 жыл бұрын
the military use for this drive is on jets with rocket launchers, it's the mechanism that loads the next rocket after one is fired. also used to load cannon fire , torpedos, machine gun fire on 360 degrees swivel gun
@strictnonconformist7369
3 жыл бұрын
Well, as much as we have modern automation with stepper and servo motors, sometimes it’s still best to use the old tech that’s as reliable as clockworks!
@trombone7
6 жыл бұрын
Superb. This guy does an excellent job of researching, executing (building / applying) and presenting to an audience (presenting w/ passion / why it matters to him) . (on top of that, does the auto-cad, and posts the app files) He is intrinsically watchable. Keep it up.
@anachronist
7 жыл бұрын
The military use that comes to mind is rotating a magazine of rounds in a large gun (like a tank or howitzer). You don't see a Geneva drive in handguns (revolvers) because they use the cocking mechanism to rotate the magazine to the next position.
@RevAldea
5 жыл бұрын
M 60 machine gun The 501 machine gun are line types of the Geneva drive just linearly design of it and is how the fresh ammo is loaded into these machines I was an ordinance NCO through the racks to Sargent Us. Army retired
@tanmaynaphe7419
3 жыл бұрын
i made this for my degree mini project out of wood .Thanks for video makersmuse.
@gordonjenkins276
6 жыл бұрын
The Hypocycloid and epicycloid mechanisms are probably the master categories of these mechanisms and gear sets. There are also the Harmonic Drive, the Planetary Gears, the .Ravigneaux planetary gearset, NuVinci Continuously Variable Transmissions, Continuosly variable transmissions, the lock-up torque converters, the Koenigsegg Direct Drive (KDD) system, etc. Ever sharpen a pencil with the old wall mounted pencil sharpener? Take a look at the gearing system! How does a revolver revolve one cylinder at a time?
@phemerickc
7 жыл бұрын
"Just as you find in your 3D printer" ... yeah ... we all have some 'o those lying around
@morphman86
5 жыл бұрын
Most of us have stepper motors laying around though. CD/DVD/BluRay drives use them.
@Lumberjack_king
4 жыл бұрын
Me can't afford
@yougot69supermonkeyb21
4 жыл бұрын
E
@abhinavshukla2202
3 жыл бұрын
Costly things.i really wanna buy one No money though
@SmallSpoonBrigade
3 жыл бұрын
@@abhinavshukla2202 Save your money, they've come down a lot in price and depending upon what you do with it, you can save/make money with one.
@milaandahiya
7 жыл бұрын
They should use this in vending machines.
@Madalovin
7 жыл бұрын
Whys that?
@devandevan1403
4 жыл бұрын
This channel needs at least twice as many subscribers
@LoadingSet7
7 жыл бұрын
In military, this technology is used to make a rifle shoot a 3-round burst, most commonly. They also use 2 or 4 round bursts.
@addrickstich6385
3 жыл бұрын
thank you, i actually never knew that about the geneva mechanism
@gondolacrescent5
7 жыл бұрын
IVe seen old lock mechanisms for doors that employ an aspect of the Geneva mechanism.. By "old" I mean the mid nineteenth century. Military application? I expect the Gatling Gun used the Geneva and possibly the invention that permitted WWI fighter pilots to have their machine gun mounted between the cockpit and the propellor and timing the precise firing of the bullet to occur in the time frame whereby the ......its way too early in the morning. Thanks for producing this, it was intensely interesting.
@stonerayven2455
6 жыл бұрын
A.G. M. The Gatling gun was actually gear driven directly from the crank and ammo was fed in by a high tension spring in the magazine
@isaiahpoole4389
5 жыл бұрын
I have one in my Subaru for some reason
@nerd1000ify
5 жыл бұрын
The interrupter gear on aircraft was actually simpler than that: the propeller of an aircraft actually rotates faster than a normal machine gun can reasonably be expected to fire, so there's no point 'interrupting' the gun from firing when a propeller blade is in its path because usually when this occurs the gun is not ready to fire anyway (it's busy loading the next bullet). Instead the gun was modified to only fire once per trigger pull, similar to a semiautomatic rifle. A combination of a cam on the engine and a set of levers coupled to the pilot's firing button pulled the gun's trigger once per rotation of the propeller whilst ever the pilot had the button held down. This resulted in the gun automatically firing at a slightly reduced rate that synced up with the propeller.
@akipmetoo
7 жыл бұрын
A thought: Today now everything recorded is done on memory, it's great! Clean picture, no artifacts and no loss in transfers, but! The film cannot be beat for effect! To show emotion and show realism for some reason the gain in film is a plus effective use can add so much to a movie.
@Larry-vk8yk
7 жыл бұрын
Back in the '70s EMI Medical used this to drive the rotation of the first whole body (CAT)scanner. It was also used to drive the rotation of British tank turret control. No matter where the turret points the turret gun is locked in position for firing.
@thenewbiewatcheroftruth
7 жыл бұрын
MIND BLOWN
@thenewbiewatcheroftruth
7 жыл бұрын
bachelors of trolling degree, 2013 lol
@coreyrobinson9010
5 жыл бұрын
I very much enjoyed this video! Just thought you should know! Also i love Chivalry.
@394Magic
3 жыл бұрын
Excellent presentation! A CD changer tray uses this underneath.
@johnvesperman1530
3 жыл бұрын
This drive is also used in old Bell & Howell MailStar inserters. I've had to rebuild a few when servicing these machines.
@1956aspro
7 жыл бұрын
Good explanation .. only slight error was the bit about overwinding a watch.... being a watchmaker myself the overwinding is wrongly identified...what really is happening is the mainspring has been wound up to its tightest and from here something in the watch gearing is preventing the mechanism from "running down" thus preventing the mainspring from returning to its relaxed position
@MakersMuse
7 жыл бұрын
Thanks for the clarification! I would add an annotation if KZitem still allowed for them...
@mr.voidout4739
5 жыл бұрын
::Spock voice:: Fascinating...
@bigcovfefe9940
5 жыл бұрын
3D printers must be a blessing for all engineers and mechanics :] I'm glad they are resourceful enough to learn and use it
@SternLX
6 жыл бұрын
I've replaced/serviced a few geneva drive gear boxes in my day when I worked as a projectionist. :) The head units I operated used sealed boxes so changing the oil meant removing the whole thing. Eventually someone wised up and added a port glass(for inspecting oil level/cleanliness), fill, and drain plugs so you didn't need to pull out the whole unit just to change the oil. I think Kineton was the first to do that.
@totalrecone
5 жыл бұрын
You may find it was a Century innovation. The Kinoton version has the glass in the rear of the intermittent whereas the Century had it viewable from the front.
@Phannty
6 жыл бұрын
I had to design this in my engineering class, so difficult
@abhishektiwari2101
6 жыл бұрын
instant sub :) awesome video - keep it up man! Love from India
@nordemoniac
6 жыл бұрын
Found this mechanism in a music box. When winding up it would rotate multiple times, but the fourth track was blocked so it stops. This allows for a longer playtime in one windup.
@etclaussen
7 жыл бұрын
I worked as a projectionist at a theater for many years. In 8 projectors I think we only had 1 "Intermittent" (the name of the part in a projector that advances the film 1 frame at a time) failure. This was over about 10 years. Pretty reliable if you ask me.
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