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Old CMan Circle H Ratchet Autopsy

J.A.F.E.

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Came across this old ratchet and while I usually pass if it's not one of my pet brands (which this is not), this one caught my eye. It's origin is a bit of a mystery as some of the details differ from those listed on this ratchet on Alloy Artifacts.
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Just to the left of "Forged" the small mark is an S with a D in the top loop and an F in the bottom loop. Note the the three screws go through the top plate into the bottom plate.
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When I got it there were some rough and sticky spots in the action, which turned out to be antique grease hardened into stone. :bounce: It was also assembled upside down with the drive slug on the selector switch side.
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With the large screw removed and the two small ones loosened but not removed I turned it over and removed the bottom plate. This shows the parts in relation to each other. Not only is this a dual pawl design but each pawl has two tooth engagement. The large holes in the pawls are bit strange, but it works well. :dunno: Also, the wear marks on the bottom plate from the gear and pawls show this one saw some action over the years.
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Here are details of the spring and selector.
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The selector is actually riveted to the body.
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The photos were staged in the sense they were taken after cleanup. The old grease prevented taking clear photos and I'm working at the limits of my photograph skills as it is.

It does need a more thorough cleaning but that will wait as I don't want to damage the patina. Even dry it is surprisingly smooth and after cleanup and some RLL should be amazing.
 
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J.A.F.E.

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I have a couple circle H CM tools. Neat older tools IMO.

Considering the age (and if anyone knows the date range of when they were made I'd like to know) it's a pretty sophisticated little gem.

I think new Britain made those for craftsman.

There was a NB tie in the Alloy Artifacts article has some info.

...Neat engineering there.

jerry

... I love seeing stuff like that. Definitely cool engineering.

Basically I got it just to open it up. You've got to admire the engineering and work that it took to make that.
 
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lauver

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lauver has it listed 1931-1947 in his thread

JAFE & Krusty,

H-circle was used on numerous Craftsman tools between 1931 and 1947. However, that particular ratchet was only sold between 1939 - 1942. I obtained this information from Dave The Toolman (aka Mr Craftsman Ratchet) who has posted on the JG a few times. I think he owns at least one of every Craftsman ratchet ever made. He's also studied Craftsman ratchets and catalogs way more than anyone I know.

Just thought you'd like to know.
 
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J.A.F.E.

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JAFE & Krusty,

H-circle was used on numerous Craftsman tools between 1931 and 1947. However, that particular ratchet was only sold between 1939 - 1942. I obtained this information from Dave The Toolman (aka Mr Craftsman Ratchet) who has posted on the JG a few times. I think he owns at least one of every Craftsman ratchet ever made. He's also studied Craftsman ratchets and catalogs way more than anyone I know.

Just thought you'd like to know.

Thanks for the info. I'm really amazed at how well it's designed and built - it's a bit of a tank but it's still very much useable and has a lot of use left in it.
 

64merc

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J.A.F.E., I forgot to thank you for taking the time to take all those pics. I've actually never seen the inside of one of these ratchets. I may have to pick one up next time I see one. :)
 

Brad54

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I've got one of those... don't know about the specific markings, but the mechanism and body are identical.
Haven't thought to use it, but after seeing the inside, I don't see why not!

-Brad
 
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J.A.F.E.

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J.A.F.E., I forgot to thank you for taking the time to take all those pics. I've actually never seen the inside of one of these ratchets. I may have to pick one up next time I see one. :)

Thanks :thumbup:, I get a kick out of doing this and it's nice to be around others who like it too! This is definately a useable tool.

I've got one of those... don't know about the specific markings, but the mechanism and body are identical.
Haven't thought to use it, but after seeing the inside, I don't see why not!

-Brad

This link: Alloy Artifacts shows four configurations and markings.

As for using it, why not? This one was caked with hardened grease but works great now that it's clean. Just be sure to pay homage to Merkava with plenty of RLL.
 
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