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Sears Roebuck Air Compressor?

Clasik

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Location
Austin MN
Picked up an air compressor from my grandfather today. Only information he says he knows about it is that it's old haha. Been looking online for a bit and can only come up with a date range of 1930-1940's. Would really like more info, but can't seem to find any good sources online that come close. Only a couple auctions here and there with the same design. Anyone know any more about it? Any help is appreciated.
Edit: Reposted photos in a comment below
 
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XJSuperman

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...

Very interesting. Im curious about the tank setup. Was that original?
I have an old Sears compressor but not THAT old.
 
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Clasik

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Photos seem to have not uploaded. I'll convert them and reupload them in a comment.
Attempt #2 at uploading these haha
 

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Clasik

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...

Very interesting. Im curious about the tank setup. Was that original?
I have an old Sears compressor but not THAT old.
The tank definitely has to be custom fabricated. Looks to be welded together thick diamond plate steel encasing whatever tank is inside it.
 
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Clasik

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Seems to be 1/2" plate the entire way around. Thinking this whole bottom part IS the tank based off of the welding. Just wondering about the Compressors info now.
 

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Clasik

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Update I seem to have stumbled upon. Maybe not from the 30's-40's but it might be from the 50's.
 

RTM

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That was a painting compressor, IIRC. Can't search easily right now, but within the last year, maybe on the Vintage side. Search under my name, and compressor, maybe add Sears or Craftsman.
 
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Clasik

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Found it in a 1948 catalog on the Internet Archive
 

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Clasik

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Doing some slight Google Dorking, I managed to dig up some old forum posts.
Here's one that could help someone later down the line maybe!
 
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Clasik

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Austin MN
Plate off the motor as stamped:
Delco 8 52 Motor
A.C. Motor Made In U.S.A.
Model A 7380 Serial G - 50
50°C Rise CONT FRAME [Blank]
115 Volts 60CYC. 1PH.
6.1 AMPS 1/3 H.P. 1725 R.P.M.
CODE J [Blank Plate] Type CS
Delco Products Div.
Of General Motors Corp. Dayton, Ohio
 

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Clasik

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I'm not very parts literate. What's this part of the motor called and what does it do?
 

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Clasik

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Probably a start (or start and run) capacitor(s). Helps the motor start.
Found a video on these types of motors that helped out a ton. Yeah, it's a capacitor. Starting to think I should have taken more electives in highschool haha
 

RTM

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Found a video on these types of motors that helped out a ton. Yeah, it's a capacitor. Starting to think I should have taken more electives in highschool haha
Or do a lot more reading about old motors here. Bad caps seem to be the major killer of old motors around here.
 
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Clasik

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Or do a lot more reading about old motors here. Bad caps seem to be the major killer of old motors around here.
Every time I find a nice old garage piece I head right to GJ. The sheer amount of personal experiences on here is what keeps me hooked
 
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alwaysFlOoReD

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Airdrie, Alberta, Canada
Similar to yours but without the tank. Picked it up years ago for the aesthetics. It runs but haven't used it. I need a portable tire filler and maybe this is it...

Edit; on top of compressor reads
Webster Air Equipment Co.
London Canada
IMG_20240524_195636014.jpgIMG_20240524_195711809.jpgIMG_20240524_195648059.jpg
 
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