le0
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Posts: 38
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Post by le0 on Mar 13, 2013 20:18:56 GMT -5
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Post by wagnerian on Mar 14, 2013 5:25:59 GMT -5
Dear Leo,
I'm only guessing here but if the crank with bulge on the handle end is an original, then it maybe that the wood of the phonograph body has expanded slightly over the years causing the rubbing. Whatever else one may think of Edison's products, they are very precisely made so it is unlikely to have been a design fault.
Regards
TW-W
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le0
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Post by le0 on Mar 14, 2013 5:43:15 GMT -5
well... the wood can't expand that much, the bed plate wouldn't fit either. I know the bulge is original. but... if there are no longer cranks existing, could the winding shaft on the machine be a replacement off a Standard? this could explain it all.
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Post by refseries on Mar 14, 2013 6:11:04 GMT -5
I assume your machine is a Standard A. The original cranks for mine stand much further from the machine than those in your pictures, as this shows: imageshack.us/a/img32/9877/imgp4007x.jpg which has about 20mm clear between the machine top and the handle web. The handle shank is 73mm long, by the way. Are the cranks correct for the machine? If not, has the motor been replaced at some stage and this has a shorter spring shaft? Keith
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le0
New Member
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Post by le0 on Mar 14, 2013 9:29:03 GMT -5
Hi Keith, the machine is a Home model A or "long case". I just bought the original crank because the repro I got witht the machine just doesn't look right at all. I measured the shank at 72mm so it's just like yours.
so the Home and Standard cranks must be different.
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le0
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Posts: 38
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Post by le0 on Mar 14, 2013 10:18:18 GMT -5
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Post by lucius1958 on Mar 15, 2013 1:30:25 GMT -5
The EBay crank is not correct for a model A, I'm afraid....
Question: how deep is the slot on your 'original' crank? The slot on my original model A crank is 4mm; the distance from the end of the winding shaft to the center of the pin is about 22mm.....
BillS
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le0
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Post by le0 on Mar 15, 2013 5:53:54 GMT -5
to the deepest the slot is about 6-7 mm and the winding shaft is about 22mm from the pin to the end.
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Post by martinola on Mar 15, 2013 19:40:34 GMT -5
le0 - I checked out the crank on my New style Standard A. The shank is 70mm (75mm including the "s" shaped piece in the end). I'm pretty sure that the New style Model A Home and Standard cranks were interchangeable. (I could be wrong but I did have both at one time and I think I tried a swap-out.) When the crank on my machine is mounted the clearance is 10mm from bulge to wood bedplate frame.
It may not be just one thing that is robbing you of your crank clearance, but a combination of things. For instance, if your crank is bent in slightly and your motor is shifted over on its mounts to the left, that could be the 10mm you don't have right there.
On my New style case Standard Model A, I had crank fit issues that cleared-up when I replaced the rubber mounts between the motor and bedplate. On these early pre-spring-suspension models, motor alignment gets pretty wacky after the rubber has rotted away. The other bonus to rubber replacement is that the motor gets quieter.
One other thing it might be is the length of the winding shaft itself. I once encountered a situation where somebody had replaced a Standard winding shaft with one from a Fireside. It fit on the motor, but couldn't be wound when mounted in the case. Could the winding shaft on your motor be shorter than it should be? Maybe from a Suitcase Home? (Did the Suitcase Homes have shorter winding shafts?)
In any case, in order to have 10mm (3/8") of clearance with that crank, the distance from pin on the winding shaft to the edge of the wood bedplate frame needs to be about 50mm (2.0").
Good luck with this. I'll be curious to know what you find out.
Regards, Martin
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le0
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Posts: 38
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Post by le0 on Mar 15, 2013 22:22:40 GMT -5
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le0
New Member
Posts: 38
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Post by le0 on Mar 15, 2013 22:27:07 GMT -5
tried to fix the link but it doesn't work... at least the URL stuff is OK so copy/paste and you'll find the pictures.
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Post by martinola on Mar 15, 2013 23:42:18 GMT -5
Hmm. Maybe this is a motor winding shaft length issue. I wonder if the mechanism was upgraded into a New Style case? Perhaps the serial number may give a clue? I'd sure like to see measurements of other Home A winding shafts in New Style cases.
-Martin
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le0
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Post by le0 on Mar 16, 2013 6:56:39 GMT -5
it's number H62529 George P. (phonogfp) told me it left the factory around December 1902.
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Post by refseries on Mar 16, 2013 11:55:33 GMT -5
I have two long case Homes, one with the gold banner, the other with the red one. They both have original cranks. I have a Suitcase but the top design is differeent so doesn't help here. The cranks have the same length shafts as that for my Standard A's, ie 72-3mm, but the rebates in the shaft to fit the pin through the winding shaft is a bit deeper on the Homes. The Home 'slot' is 5mm to the deepest point, the Standard 4mm. Other than that they are the same.
When the cranks are on the long case Home machines one has a gap between the inside of the crank and the edge of the wood top of 7mm, the other 10mm, but this is within the realms of assembly variance.
I would suspect that the winding shaft is the cause of your problem. If you would like me to measure the shaft dimensions on my machines let me know.
Keith
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le0
New Member
Posts: 38
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Post by le0 on Mar 16, 2013 16:43:03 GMT -5
Hi Keith, it would be greatly appreciated if you could measure your machines.
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