








Here’s that “F” in a triangle.I just completed a long-distance trade with a Canadian GJ member who shall remain as nameless as he wants to be, and, knowing my affection for weird stuff and wartime stuff, threw in this double-whammy DBE wrench for good measure. It was quite a cool surprise.
As you can see, that end with the Joe Theismann/Alex Smith/Dak Prescott-looking offset is actually double orthogonal, bent 180*, in parallel with the edge of the shank, with the service opening (3/8" hex) facing backwards. So it must have been used to get at something sunken behind a thin obstruction, like a sheath or guard, either by reaching it over from above or underneath. It has a small through hole. Typically with these kinds of twisters, like something in an aircraft engine compartment that is hard to reach.
The other end is angled from the shank, not offset, at 45*, and it is bent in line with the flat of the shank. It also has a 3/8" hex service opening, and a through hole, with a much shallower 3/8" hex opening on the back side.
The wrench is marked with the opening sizes ("3/8"), what appears to be a part number ("5CB848") and what appears to be a logo. An "F" inside a triangle, like so: /F\.
On the flip side it's marked "USAC" (almost certainly United States Air Corp) and what may be either "AFTS" or "HFTS". Until research proves otherwise, I am going with HFTS and Helicopter Flight Training School.![]()
online from the Benson Ford research center The Henry Ford Museum. It's not a lock, but already deduced that it was made under the Air Corps / Ford 1941 B-24 contract by Henry Ford Trade School. Since the wrench doesn't appear to be a mod of an outsourced tool like many of the HFTS tools were, it seems logical that they'd use their own stock though I have no idea what the year range was for use of the F in a triangle as most of the references to it seem to be earlier than this particular tool.What's the source of the reference?
so pretty sure that's from a T and yeah that puts a year range on it but doesn't necessarily. mean it doesn't go beyond that. I think that chart I pulled it off of probably falls in the T/A era too.What car/years was the Pittman arm used on? That could give a hint at years used?
I love the scooped design. Distinctive look, as well as functional. Instead of a weakening bend, Barcalo achieved the 15 degree offset demanded in box wrenches by offsetting the broaching. The end beam was kept straight for strength - with the wall thickness of the box end tapered - but users still got the desired offset. I thought it was an interesting solution - it was certainly different.
Crescent "Life-Time" 5-piece SAE Double-End Box Wrench Set
LTB1214 3/8" x 7/16" SAE Double-End Box Wrench
LTB1618 1/2" x 9/16"
LTB2022 5/8" x 11/16"
LTB2428 3/4" x 7/8"
LTB2628 13/16" 7/8"
* These wrenches were manufactured by Crescent right after their 1963 acquisition of Barcalo-Buffalo Mfg. Co. of Buffalo, New York, and employ the patented "scoop" design created by Walter R. Meier and Hollis R. Ross (U.S. Patent D177636) The design is exclusive to later Barcalo wrenches, and this short-lived series of Crescent "Life-Time" wrenches.

-Don
I came across this little Athol wrench again doing a cleanout. Googled it and came up with my own post 9 years ago LOL!I found this little Athol "High Tensile" wrench stashed in one of my boxes a few days ago. Thought at first it was from the Massachusetts company but further research showed it was H&P Athol from England. No luck finding any more info on the company. Notice the sizes are marked on the side you would use. This is for standard American nut sizes, the A/F means "Across Flats". so this fits standard 5/16 and 3/8 6 point nuts.
I came across this little Athol wrench again doing a cleanout. Googled it and came up with my own post 9 years ago LOL!
Any tool search almost always comes back to GJ. Sometimes in ways we don’t appreciate.I came across this little Athol wrench again doing a cleanout. Googled it and came up with my own post 9 years ago LOL!
One is a PERFECTION , an old Western Auto brand.
Never having seen one in the wild before, but remembering they show up here from time to time, I snapped a photo of this $1 table LEFT-BEHIND at the flea market this morning. A little fugly, but chances are very good it will be there next week if either of you has a hankering to build a collection. Let me know.1" x 15/16" offsets a Perfection (Western Auto?)