Another period torque wrench

[Keith True]

While reading the old torque wrench thread a couple of weeks ago,the one in the pictures looked kind of familiar.when I got in my Tudor today I found this one on the floor,I kind of forgot I had thrown it there for safekeeping about 10 years ago.It is a Sunnen model PN 50.I really don't know just what vintage it would be.I was given this with a bunch of tools by a man that bought them all new.

[zzlegend]

Wow Keith. And you even got the box and the paperwork. That's a keeper. I have been looking at these on ebay. Do I need one? Not really, but I just like old tools.

[scrapiron]

Cool,, let's see it work.

[duke36]

Attached is the patent drawing from the person who in 1918 supposedly invented the torque wrench. This perhaps is the patent renewal after the 17 year term elapsed. Curious if any early to mid 30's Ford used torque wrenches similar to Chrysler products assembly.

[1937pickup]

Wasn't Chrysler the first to use torque values?

[Tom Wesenberg]

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That is a neat old tool. I hadn't seen that style before Mitch posted his a few years ago.

[Bruce in southern OH]

Very NICE!!!

[Mitch//pa]

I had the same one and gifted it to K-Dad. We did not have the box or paperwork which is cool thanks for posting

[katy]

Keith, any chance you can copy and post the instructions? I just bought one off eekpay for $25, but no paperwork or box.
TIA, Ken

[BILL WILLIAMSON]

Originally Posted by Mitch//pa

I had the same one and gifted it to K-Dad. We did not have the box or paperwork which is cool thanks for posting

My SON, Mitch, is TOO GOOD to me, the wrench is one of my GREATEST TREASURES
Proud KDad