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Roller Bearing
Patent for improvement on roller bearings that include spaced rings and multiple rollers.
Date:
November 2, 1911
Creator:
Tatum, Franklin M.
System:
The Portal to Texas History
Saw-Swaging Machine.
Patent for an improved saw-swaging machine that is used as "an anvil-die and an independent roller-die" (lines 17-18). "The saw may be swaged from the front of the tooth without scalloping or concaving the tooth and at the same time avoiding friction thereon" (lines 21-24).
Date:
June 2, 1896
Creator:
Shepley, Benjamin A.
System:
The Portal to Texas History