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Bit Brace.
Patent for a bit-brace with a crank arm which can be secured to the bit chuck and which has an adjustable hand, so the chuck may be rotated while the brace remains stationary.
Date:
August 18, 1914
Creator:
Hall, Samuel N.
System:
The Portal to Texas History
Pipe Wrench.
Patent for a double acting pipe wrench with detachable jaws which can be easily removed and replaced, and which will allow a section of pipe to be turned in either direction. The patent includes instructions and illustrations.
Date:
August 18, 1914
Creator:
Hall, Samuel N.
System:
The Portal to Texas History
Wrench.
Patent for a chain wrench "in which both of the jaws are similar and interchangeable and provided with additional sets of teeth whereby the life of the jaws is increased" (lines 12-16) including instructions and illustrations.
Date:
August 18, 1914
Creator:
Hall, Samuel N.
System:
The Portal to Texas History