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Drag-Saw.
Patent for a simple and efficient drag-saw that can be easily transported and adjusted. The saw can also be lifted during operation if necessary. It has a frame, a longitudinally-grooved guiding-bracket attached to the frame, a reciprocating pitman-head that slides into the frame, a crank-shaft that operates the pitman-head, an arm that carries the saw with a pivotal connection to the pitman-head, a saw-frame secured to the pitman-head's outer end, an adjustable strap between the saw-carrying arm and the saw-frame for adjusting the saw-frame, a spring between the arm and the pitman-head, a saw-lifting lever fulcrumed on the machine-frame, a pendent stirrup carried by the lifting-lever and slotted to control the saw-carrying arm, and a guiding-bracket with a slot where the stirrup slides and another slot where the arm moves.
Date:
March 3, 1896
Creator:
Reeves, Newell Antony
System:
The Portal to Texas History
Calculator.
Patent for a calculator "in which a bar having a series of numbers thereon slides in a frame or base also provided with a series of numbers" (lines 10-12). It is meant for quickly adding numbers.
Date:
October 13, 1896
Creator:
Copeland, Wesley Albert & Roberts, Cyrus
System:
The Portal to Texas History