Brace PEXTO-01 - P.S.&W.Co. No. 1201.
This twelve-inch swing brace is in the middle series, having the Whitney-Ellrich patent jaw spring. It was made after the Ellrich ratchet patent had expired in 1901 as well as after the Whitney-Ellrich patent was sent to the US Patent Office in May of 1910. The ball bearings and the affixing screw are all original. Virtually no nickel plating remains, but the steel surface has a pleasant, smooth patina with no pitting. The H.V. Smith patent for the ball-bearing chuck would have expired in 1912.
|The pad at far left is lignum vitae, a strong tropical
The jaw spring is the intermediate Whitney - Ellrich variety.
The flip-over ratchet pawl is simpler than in the original Smith patent drawings.