Totally!it's tubular!![]()











I would start on the ITCL, and look for years it existed, and then see if you can pick out changes like shape of the turning bit, depth, overall height, manufacturer name spelling out, etcNot sure if this is old or vintage.
Anyone know how old this beast could be?



These have been talked about before here on GJ. The second screw is to eliminate the rotation possible from the screw also turning the pad (friction too high to slip), and thus the clamped object, per the patent. I have no idea who found it, which thread, etc., but it's out thereFound this at a garage sale last week. I thought it looked pretty cool. Besides adding more force, the second tightening screw is aligned so that it does not tend to rotate your clamp frame as can happen when tightening a standard clamp.
The only clue to the manufacturer is a CH logo mark (I’m assuming for Cincinnati Tool Co – Hargrave). However, I can’t find any mention of these being made by Cincinnati Tool.
There are quite a few mid 1940’s advertisements showing a clamp like this being sold by Grand Specialties. It was called the “Dual Grip” and it also had the “Quickcet" option. eBay had a photo of a non quick-adjust clamp virtually identical to mine (including the “4A” forging) that was marked ‘GRAND” (but did not have the CH logo).
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This one? Anthony Sasgen Patent shared by LugzThese have been talked about before here on GJ. The second screw is to eliminate the rotation possible from the screw also turning the pad (friction too high to slip), and thus the clamped object, per the patent. I have no idea who found it, which thread, etc., but it's out there
Had no idea it was that old. I assumed the 70’s.That’s 1955?
Argh. The 1910 was spring punches, and I did not correct after I saw itThat’s 1955?
I just meant the date of that catalog.Argh. The 1910 was spring punches, and I did not correct after I saw it
From at least19101955
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Stanley Handyman Tools : Form 105A : Stanley Tools Division : Free Download, Borrow, and Streaming : Internet Archive
22 p., illus., 18.4 cm, trade catalogarchive.org
Here we go. I found my Judd Mfg Co “Pat Appl’d For” C-clamps.Had no idea it was that old. I assumed the 70’s.
On eBay, ALL the Judd clamps like these are marked that way - NO PAT dates or numbers.

Nope. That's a foundry mark. Cleveland Hardware, later Cleveland Hardware and Forge. Search GJ on that and you'll find a smattering of posts from before and after it was identified. Shows up on Wilton vises, early Chicago Hardware and Manufacturing socket sets, Cornwell and other items.The only clue to the manufacturer is a CH logo mark (I’m assuming for Cincinnati Tool Co – Hargrave).
That was my immediate thought, as soon as I saw it, before I read one word of your post. They seemed to be enthralled with the principle and concept of secondary set/clamping action.There are quite a few mid 1940’s advertisements showing a clamp like this being sold by Grand...
Thank you for setting me straight on that! I thought it was just a squished version of the H in a circle logo for Hargave designed stuff. I searched a long time trying to find a connection with Cincinnati Tool.Nope. That's a foundry mark. Cleveland Hardware, later Cleveland Hardware and Forge. Search GJ on that and you'll find a smattering of posts from before and after it was identified. Shows up on Wilton vises, early Chicago Hardware and Manufacturing socket sets, Cornwell and other items.