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Help ID Old Bench Grinder

Farmall 1066

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Jul 21, 2012
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Location
Suburban Rockford, NE
It's consignment auction season here in Southeast NE, so been going to a few lately. Usual mix of everything from tractors to used washer/dryers.
Spotted this gnarly old 8" bench grinder, bid a few times, and won the privilege of carrying this damned thing 3 blocks to my truck!
Suspect it's a Black & Decker, but center cover is missing, so I'm not sure.
Worst part is it only runs 1/4-1/2 speed. Bearings are smooth and quiet, but wiring is all butchered in the base. Is this thing supposed to have a start capacitor? Don't hear a centrifugal switch clicking?
 

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7th Kahuna

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Funny, last week I was the one trying to identify a grinder without a name plate. I can see why you are thinking Black & Decker. Did early Black & Decker grinders use 'wrinkle' paint? Someone here should know. Here is another one that looks very similar, unfortunately its tag is partly painted over. Perhaps it is a clue however. The image was posted on etsy but the item is no longer available. You may want to save the image if you find it useful. I'm not sure how long they will leave it up.

il_fullxfull.774113154_5ft4.jpg


google link
 
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7th Kahuna

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Thanks for sharing that pic. It does look similar.
Any idea if this would use a start cap? I'd think it would about have to?

Not necessarily. Here is a pic of the bottom of the grinder / buffer I was try to identify last week:

Grinder06.jpg


I believe that is an induction motor (Probably made by Doerr in 1963). I must admit I have no idea how they work at this point. Induction motors do not require a capacitor. I have two other grinders, a Craftsman (1974) and a Rockwell (1969) that both have the traditional cylinder shaped start capacitor mounted inside the base. The other possibility of course is that it is a three phase motor, which again would not require a start capacitor but rather three phase instead of single phase power.

As I understand capacitor start motors, if the capacitor were missing or burnt, the motor would not turn, even at half speed, unless you manually spun it to get it started. It would be helpful to everyone to see a higher resolution photo of the wiring, if you have the means to post it.
 
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7th Kahuna

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7th, having been born and raised in Cincinnati I can remember when the streets were lined with machine tool companies, a product of the city's large German population. They were almost all gone by the 1970's. I can't quite read the name but here is a possibility.
http://vintagemachinery.org/mfgindex/detail.aspx?id=4164

That is very interesting, I did not know that about Cincinnati. We had a German immigrant founded community near me here in California but they produced wine grapes rather than machine tools. Of course that was in the mid to late 1800's.

Thanks for the link, it looks like you may have hit the nail on the head.

17442-B.jpg


I would say that is a match to my proposed 'sister' machine. I keep seeing an 'S' under the black paint. And a label saying 'Grinder Machine' doesn't make much sense.

It would be interesting to know if Farmall's base has matching hole positions for the label's drive pins. It would also be interesting to know if they made grinders for other companies.
 
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Farmall 1066

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Jul 21, 2012
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Location
Suburban Rockford, NE
No holes in base for a name tag. I'll try to get a pic of the rats nest under the base.
I don't know why I can't get better resolution on my pics.
They are great anywhere else I send them, but I post them on here and they get all grainy.
 
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