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Punching-Machine.

Description: Patent for a simple and durable punching-machine for metalworking that punching metal and feeds it forward. The invention is made up of " a carriage adapted to support the sheet to be punched, and provided with a toothed bar, a rock shaft carrying a pawl adapted to engage the said toothed bar to move the carriage forward, and a punch lever adapted to receive a swinging motion from the said shaft, the said lever being connected with the punch to move the latter downward to punch the sheet" (line… more
Date: August 14, 1894
Creator: Walsh, Richard
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Force-Pump.

Description: Patent for a simple, inexpensive, and efficient double action force pump that has one cylinder and one plunger. It also equalizes the opposite strokes of the plunger, and pushes water into the common chamber with both strokes.
Date: October 2, 1894
Creator: Thompson, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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