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Pump-Operated Device
Patent for "combination with a pump-operating crank-shaft and a walking-beam operatively connected with the pump-rod, means for preventing sudden movements of the pump-rod at the ends of its strokes and for assisting in starting the rod in its reciprocations" (lines 10-15).
Date:
May 28, 1901
Creator:
Crawford, Charles Buchanan
System:
The Portal to Texas History
Drill.
Patent for improvements in drills by providing “a frame which may be readily attached to any suitable support and wherein the drill-spindle may be engaged for operation by a common form of chest-brace.” (Lines 9-13) The frame would enable the stock-rest to adjust in proper positions to receive different thicknesses of stock.” (Lines 15-17) Illustration is included.
Date:
April 2, 1901
Creator:
Willmann, Joseph
System:
The Portal to Texas History