I was looking up nylon chain sprockets, found some getting a little closer.
Tie Pilot Chest Box gear found part search
- Thread starter RBJ
- Start date
RBJ
Sr Member
That’s one of the things that’s so tricky about this part..there’s a TON of almost correct..and gears are in everything.
I think the key to figuring this out is the tooth profile, the thickness and the size vs teeth.
-available in 1975
-white plastic
-thin (so it can’t bear heavy loads)
-18 teeth/2” OD.
It was suggested to me today the center may not be a roll pin mount, but a spool for some kind of tape (look at the gear in a clear white out tape dispenser)
I think the key to figuring this out is the tooth profile, the thickness and the size vs teeth.
-available in 1975
-white plastic
-thin (so it can’t bear heavy loads)
-18 teeth/2” OD.
It was suggested to me today the center may not be a roll pin mount, but a spool for some kind of tape (look at the gear in a clear white out tape dispenser)
TazMan2000
Master Member
I understand the need for having the exact, or nearly the exact same part, to replicate a prop identically, but there must be a 3D model with almost exact characteristics that somebody has modelled. I hope it is found, but as years pass, it will be more and more difficult to find this gear, if that hasn't been demonstrated at the present time which is almost 45 years later.
TazMan2000
TazMan2000
I have faith. We keep ID'ing stuff all the time. What was it, a year ago, that tubachris ID'ed the thermostat for the Snowtrooper? A couple years before that that we not only ID'ed the Veyron model airplane engine parts used on Han's blaster (as well as all over the frikkin' place in ANH), but that the original parts from the original moulds were still available to purchase from the son of the original maker. It's possible this won't ever be nailed down, but that doesn't make the attempt foolish or doomed to failure.
Now... Does anyone have a line on what sorts of water pumps were around in the mid-'70s in the UK for koi ponds?
Now... Does anyone have a line on what sorts of water pumps were around in the mid-'70s in the UK for koi ponds?
Have you tried looking at the EMA model supplies catalogues? There's gear cogs in there which look the same and they definitely used some of their products, the model makers used EMA quite extensively and this obviously bled through in some areas, the Boba Fett costume appears to be littered with them for example.
The really great thing with EMA is that thier product remains virtually unchanged.
The really great thing with EMA is that thier product remains virtually unchanged.
I think you were on to something with oil pumps. I'm seeing gears/cogs/sprockets that look the closest to the real part on oil pump gears.
Film camera? Movie film camera? Sprockets advance film?
Vintage computer floppy drive?
That's what I've been banging my head against, with nothing to show yet. The two directions of enquiry I've been following have been:
• Pump internals of some kind that Ainsworth had on hand from one of his main product lines.
• Pieces some of the Elstree wardrobe people had from one of their drift-net runs through the local electronics supply shop down the street (where all the switches and switch covers and switch bay covers and panel lights and so forth came from).
Do we know who did the actual deco? We have the pic of someone modeling the one complete ensemble (over a white tank top) with a pile of helmets next to him. Was that at Ainsworth's shop, or on the lot?
• Pump internals of some kind that Ainsworth had on hand from one of his main product lines.
• Pieces some of the Elstree wardrobe people had from one of their drift-net runs through the local electronics supply shop down the street (where all the switches and switch covers and switch bay covers and panel lights and so forth came from).
Do we know who did the actual deco? We have the pic of someone modeling the one complete ensemble (over a white tank top) with a pile of helmets next to him. Was that at Ainsworth's shop, or on the lot?
For me I think it all lies in the teeth of the gear. It's extremely specific.
Is it a gear made to turn another gear with the same teeth?
Is it a sprocket made to move something such as a chain, conveyor material, film, etc...?
Is there a pivoting cam that sits between the teeth and the movement of the gear or the movement of the cam is why the gear teeth looks like it does?
I feel like we need to send photos of the part to people who could at least tell us what it's designed to do, that would narrow down the search.
Is it a gear made to turn another gear with the same teeth?
Is it a sprocket made to move something such as a chain, conveyor material, film, etc...?
Is there a pivoting cam that sits between the teeth and the movement of the gear or the movement of the cam is why the gear teeth looks like it does?
I feel like we need to send photos of the part to people who could at least tell us what it's designed to do, that would narrow down the search.
RBJ
Sr Member
The outside pics are from Ainsworths shop.
I too believe the key is the teeth. They are too square for a chain, and the gear itself is thin. So I think it meshes against another gear..the low tooth count is a clue as well.
I’ve asked experts on typewriters, vacuum cleaners, and former IBM engineers and haven’t gotten a hit yet.
Ive been trying to track down who would have physically built them or sourced the parts without much success
I’ve looked at:
oil pumps
sewing machines
knitting machines
juicers
computer printers
copiers
toner cartridges
RC cars
RC helicopters
car window regulators
Tamiya model parts
vintage scientific gears
....and still nothing.
it had to be somewhat easy and cheap to get 15 of them in 1975...WE WILL FIND THIS THING!
I too believe the key is the teeth. They are too square for a chain, and the gear itself is thin. So I think it meshes against another gear..the low tooth count is a clue as well.
I’ve asked experts on typewriters, vacuum cleaners, and former IBM engineers and haven’t gotten a hit yet.
Ive been trying to track down who would have physically built them or sourced the parts without much success
I’ve looked at:
oil pumps
sewing machines
knitting machines
juicers
computer printers
copiers
toner cartridges
RC cars
RC helicopters
car window regulators
Tamiya model parts
vintage scientific gears
....and still nothing.
it had to be somewhat easy and cheap to get 15 of them in 1975...WE WILL FIND THIS THING!
Low speed water pump for the koi pond yard inserts AA made...?
So why does a sprocket have tapered teeth? Maybe because the teeth need to reliably feed into something instead of move another wheel in the same plane of movement? Ot maybe to transport something like a chain or maybe film?
Now we'd need a real engineer ...
Now we'd need a real engineer ...
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