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Sleeve-Puller.
Patent for simple and inexpensive sleeve puller, primarily for "pulling sleeves from the rear axle housing of a motor vehicle" (lines 13-14), with illustrations.
Date:
July 12, 1921
Creator:
Wilson, Joseph H.
System:
The Portal to Texas History
Wrench.
Patent for a wrench with a head having a pair of rigid jaws to engage the object. One unique use of this wrench is that it can tighten any threaded joint beyond the degree of tightness that can be obtained by pulling the handle of an ordinary wrench in the usual manner.
Date:
July 19, 1921
Creator:
Duda, Oswald
System:
The Portal to Texas History
Safety-Razor
Patent for a razor held in place by a guard that protects the user against injury and the razor against dulling. The safety razor is easy to clean and is designed to be "cheaply and easily manufactured" (lines 21-22).
Date:
July 5, 1921
Creator:
Benton, Columbus A.
System:
The Portal to Texas History