What is this clamp thing?

[Odd Job]

Picked this up at the flea market a while back. I've used it as a helping hand clamped to studs when fastening horizontally. Not sure if that's the intended function. Thought also might be a bench stop? Only stamped markings read "No 1" and "1 1/2" The clamp is meant to bite into wood having a raised + on the contact surfaces. All I know for sure is that I had to have it.

 

[Odd Job]

Another angle

 

[Mintgrun]

I think that is the stationary half of a "bar clamp" which uses a piece of lumber as the bar. I have two sets like this.





The little piece of wood they're on is just for storage and the other two are at the other end of the stick.

Tom

 

[Mintgrun]

I stumbled across this thread while starting a new one for another clamp what's-it? This one may have had a similar purpose, or was possibly for something specialized.



The only markings I see say DRGM, which indicates that it was made in Germany prior to 1945. The clamp portion only opens up 3/8", or even a little less.





Has anyone seen one of these before? I don't think it is a saw set! My guess is that it uses a piece of wood to make a clamp and the other half of the tool is missing... if there was one.

Tom

 

[steaks&anvils]

I think that is the stationary half of a "bar clamp" which uses a piece of lumber as the bar. I have two sets like this.

Wouldn't that ******/stud on the clamp pad leave a mark on the object being clamped? This would suggest it was not for fine finished work?

Maybe for boat or coffin making? Although, I think the coffin clamps have their own steel bars. And both, I would assume to be "finish" grade so that pad issue would rule them out?

scaffolding maybe?

 

[Provincial]

tom, that tool looks like it is for stretching a fabric over a frame. Perhaps for paintings, screen printing, or ????

 

[RTM]

I have a Bessey which uses the little 3/8” gap to clamp to a larger clamp, like an F clamp, then is used to clamp a face. Your arm may keep the item being clamped from drifting down.

https://www.amazon.com/dp/B0000DD2QH/?tag=atomicindus08-20

 

[Private Lugnutz]

I don't think it is a saw set!

Snerk.

 

[Mintgrun]

tom, that tool looks like it is for stretching a fabric over a frame. Perhaps for paintings, screen printing, or ????

I think you are onto something. I am now thinking it may be a strap, or webbing stretcher. I'll do some more searching online with that in mind.

I have a Bessel which uses the little 3/8” gap to clamp to a larger clamp, like an F clamp, then is used to clamp a face. Your arm may keep the item being clamped from drifting down.

Bessey clamps are awesome and made in Germany as well. I don't see what function the long arm would serve. or the grippy surface on the narrow clamp pads. I do see the similarity though and the ones that I have came to mind when I found this one. I'll snap/post photos of those later. I also have a few other "Clamp what's-it?"s to share.

Wouldn't that ******/stud on the clamp pad leave a mark on the object being clamped?

I am still trying to figure out the reason for the long arm on the clamp. It may help keep the clamp from rolling up over the top when a strap is being stretched over a frame. Googling hasn't supported my theory yet, though.

Thank you for the thoughtful input.

Tom

 

[Mintgrun]

Here's another mysterious clamp thing. At least it has more markings to use a clues. (sorry I did not measure it, but the lighter colored board is 3 1/2" wide).






When I searched that date using the tool patent site in the sticky, I get this error: 1919-03-02 was a Sunday not a Tuesday.
That one has me stumped.

These look like they have a special purpose, but what might that be?








Tom

 

[RTM]

Here's another mysterious clamp thing. At least it has more markings to use a clues. (sorry I did not measure it, but the lighter colored board is 3 1/2" wide).


When I searched that date using the tool patent site in the sticky, I get this error: 1919-03-02 was a Sunday not a Tuesday.

don‘t you love it when a company is so enamored of their product they put the wrong date on it? What is the middle letter of the name? We?er….


the DATAMP date error page will let you input partial dates, like Mar 1919, or 02 1919, to see if they just pooched one field. But unfortunately, we can’t be sure if that was patented as a clamp, or was a clamp on a hacksaw, that happened to be big enough to show off the date.

 

[Mintgrun]

WEAVER. Searching the name and numbers on the tool did bring up a few rifle scopes... but that wasn't very helpful.

 

[RTM]

He was off by a year. Mr Weaver was very prolific in that time. I put in Weaver as the company. Part of a bearing puller clamp.

US Patent: 1,332,277 - Bearing puller

US patent 1,332,277 Bearing puller was issued to Ira A. Weaver of Springfield, IL. It was granted on 03/02/1920. "The present invention is designed to provide a clamp or holding device adapted to securely grasp and hold an article... For example, under ordinary c

datamp.org

 

[Mintgrun]

Thank you for the information. You have very good hunting skills!

I guess the patent should read 1920. I wonder how he made that mistake.

Mine will make a good paper weight, since I doubt I will ever come across the other missing pieces.
I'd been wondering about that one for years!

Tom

 

[Odd Job]

Ah! Sash clamps!. Thanks Mintgrun, now I can sleep again lol. That's great that you have two sets, very cool. I'll be on the lookout for more of these. I wonder how common they are and where they were made?