Tuesday, February 3, 2026

Desperate times at Triumph


The TR25W Trophy replaced the 200cc Tiger Cub in the catalog, basically just a rebadged BSA Starfire 250. 

Monday, February 2, 2026

Hi-Test wrench

  These Hi-Test wrenches were made in Japan for an import and mail order company based in New York named Hi Test Premier. The odd 19/32" size corresponds to 15mm (probably coincidently) and was used on older machinery, I've seen the bolt head size on 8N Fords, why I do not know.  The finish is a little rough but quality doesn't look too bad.

According to Alloy Artifacts, Hi-Test Premier was in business from the 1950s through at least the 1970s.



 

Dodge for 1931


Dodge, trying hard in the depth of the Depression.

 

Saturday, January 31, 2026

Know your micrometers


 Above, parts of the micrometer. below, the first micrometer made by Jean Palmer of France in 1848, as brought back to the US by Joseph R Brown and Lucien Sharp after a visit to the Paris Exposition. Bottom, their improved version of 1885.




Shop Theory, Henry Ford Trade School, McGraw Hill 1942

Illustration from 1936

 Child-Life Arithmetics 6 by Breed, Overman & Woody, 1936.

Oneletterwords

 Wasn't the future wonderful?

Friday, January 30, 2026

Thursday, January 29, 2026

Ride-on drill press

John L Feirer Earl Tatro, Machine Tool Metalworking, McGraw Hill 1961