
Don't mind me.. it's just my pedanticism getting the best of me
No offense taken.
four.cycle said:
Does that just "snap" together? (I'm assuming the pin is just the hinge mechanism, correct?)
No. It actually hinges at the bottom, and that open frame drops down to open the holder.
I have discovered that the pin
is original. I thought it was too crude to be an original latch, and I was thrown off by a reference in the catalogs to these holders “locking,” therefore expecting something different in a latch, but the DATAMP website has a photo of a set just like mine showing the same exact crudely bent pin latch. Click on the link and then go to Page 2.
http://www.datamp.org/patents/displayPatent.php?number=1,877,466&type=
Vlchek did make a holder that actually had "FITZ-ALL" embossed into the sheet metal holder where mine says "CHROME MOLYBDENUM". Here’s an ad from a 1930 Popular Mechanics magazine. You can just make out the FITZ-ALL on the holder at the bottom or the pyramid.
They had a few of these sheet metal holder sets with mysterious names (Star, Norivell, and Checker), with those names embossed in the holder. I was assuming mine is from later in the 1930’s when they perhaps dropped those novelty names. The 1936 catalog only includes the “FITZ-ALL,” as shown in my post above, not the other sets, but it doesn’t show the front of the holder. The 1941 catalog advertises generic wrench sets, and the image shows a holder with “CHECKER” embossed in it. My holder is stamped with the patent (1,808,190) on the bottom, which dates to June 2, 1931. Strangely, they had an improved design patent (1,877,466) granted Sep 19, 1932, throwing my conclusions about the date of my kit into question. It can’t be older than 1931. Whether it’s contemporary to the named sets or later, I don’t know.
four.cycle said:
I posted a Bridgeport "Hy-Power" set just above (post #40) that has the SAE sizes stamped on one side and metric on the other, kind of like yours but clearly much older. I wonder how many other makers were doing that; marking both SAE and metric on the same wrench? Or was it exclusively a Bridgeport thing?
Frankly, I don't recall ever seeing it on another wrench prior to the modern era, in person or in a catalog or advertisement. I have a 1946 Cleveland Twist Drill reamer set that is marked with fractional and metric sizes on the reamers and the box, and the unit of measure is articulated the same exact way ("m/m"). And when I saw it I had the same double-taking anachronistic reaction I had when I first realized that Bridgeport was doing it:
way ahead of its time.