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Saw-Hammering Machine.

Description: Patent for a simple hammering machine for circular saws that "carries the saw in such a way that it may be held at any necessary or desired angle to suit the operator, which has a sliding anvil adapted to be adjusted so as to come opposite the various parts of the saw, which is provided with an adjustable hammer adapted to be brought opposite the anvil, which is constructed so as to cause a blow to expand both sides of the saw equally, and which in general is intended to facilitate the quick an… more
Date: July 18, 1893
Creator: Dillon, Thomas H.
Partner: UNT Libraries Government Documents Department

Power-Hammer.

Description: Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date: December 13, 1921
Creator: Karlson, Eric Fritjof
Partner: UNT Libraries Government Documents Department
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