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Author Topic: Chicago adjustable  (Read 2298 times)

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Offline rustyfordgarage

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Chicago adjustable
« on: June 14, 2017, 08:57:35 PM »
Picked this up on the way home.  At first I thought it read GM & D Co Chicago. No luck with a quick search.  Tried C and O as well as the first letter and about the same.  I'm sure one of you guys knows what it is.

Also it has C6 on the back I am assuming designating the 6 inch overall length.
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Offline wrenchguy

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Re: Chicago adjustable
« Reply #1 on: June 15, 2017, 06:16:33 AM »
nice 1.
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Offline cgw2also

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Re: Chicago adjustable
« Reply #2 on: June 15, 2017, 07:43:07 AM »
 Just a WAG but could it be Gulf, Mobile & Ohio Co. as in the railroad. I say it's a WAG but I did see an open end wrench in an antique store the other day marked FRISCO that was around 3 FEET long so a 6 inch adjustable may not be out of reason for a railroad. Tighten them packing nuts on the steam valves. I know just a Newbie guess.

Newbie Charlie out
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Offline rustyfordgarage

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Re: Chicago adjustable
« Reply #3 on: June 15, 2017, 08:18:02 PM »
It's possible but I am fairly confident the third letter is a D.  Also the few railroad tools I do have are stamped initials on a production tool from another company, but that probably wasn't always the case.
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Offline Northwoods

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Re: Chicago adjustable
« Reply #4 on: June 15, 2017, 09:50:12 PM »
Looks nice!
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The ORIGINAL Northwoods.

Offline mvwcnews

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Re: Chicago adjustable
« Reply #5 on: July 01, 2017, 09:09:09 AM »
The  initials match "Chicago Manufacturing & Distributing Co." - the company that made the "Wright" ratchet  (http://www.datamp.org/patents/displayPatent.php?number=1089737&typeCode=0 ) .  But everything known to have been made by that firm was malleable  iron & this wrench appears to be forged -- a consideration which argues against that company being the maker.  Needs a lot more research to reach a definite answer.
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Offline Yadda

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Re: Chicago adjustable
« Reply #6 on: July 01, 2017, 05:52:16 PM »
Beefy little thing.  How long is it?
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Offline Twertsy

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Re: Chicago adjustable
« Reply #7 on: July 03, 2017, 06:56:36 AM »
Quote from: mvwcnews on July 01, 2017, 09:09:09 AM
The  initials match "Chicago Manufacturing & Distributing Co." - the company that made the "Wright" ratchet  (http://www.datamp.org/patents/displayPatent.php?number=1089737&typeCode=0 ) .  But everything known to have been made by that firm was malleable  iron & this wrench appears to be forged -- a consideration which argues against that company being the maker.  Needs a lot more research to reach a definite answer.

They held patents for forging dies so I'm not so sure that's accurate.  https://patents.google.com/patent/US1355434A/en?assignee=Chicago+manufacturing+and+Distributing&sort=old

My 99% bet is that you are right, Chicago Mfg. & Distrib. Co.
« Last Edit: July 03, 2017, 06:58:19 AM by Twertsy »
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Offline rustyfordgarage

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Re: Chicago adjustable
« Reply #8 on: July 07, 2017, 11:12:43 PM »
It's about six inches long with the jaws being nearly 7/16 at the base.  The Chicago Mfg. and Dist. seems to fit  it appears they did some forging http://alloy-artifacts.org/chicago-mfg-company.html#chicago-mfg-speednut-1830033
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