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4 Matching Results
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Lock-Strike.
Patent for simple and durable lock plates for door frames. This patent is for the keeper plates for door locks and is an invention "for rendering the plate adjustable both vertically and horizontally without detaching the same from the door jamb" (lines 11-14). Includes one illustration page and description.
Date:
July 9, 1918
Creator:
Russell, Leo
System:
The Portal to Texas History
Excavating Apparatus
Patent for an "improved excavating apparatus adopted for use in cleaning out tanks, for excavating cellars, for dredging streams, and for other similar purposes; and it consists in the peculiar construction and combination of devices hereinafter fully set forth and claimed." (line 9-14)
Date:
August 22, 1902
Creator:
Bump, James G.
System:
The Portal to Texas History
Cut-Off Lock
Patent for gasoline cutoff for motor vehicles. Allows for vehicle to be still in use or running when left unattended, but will prevent it from being stolen.
Date:
January 9, 1917
Creator:
Reid, William O.
System:
The Portal to Texas History
Derrick.
Patent for a portable derrick "in which the derrick-frame is rotatable, the same being especially adapted for use in handling bales of cotton, baggage, ice, and other heavy articles." (Lines 14-17) Includes instructions and illustrations.
Date:
March 9, 1897
Creator:
Stallings, George V.
System:
The Portal to Texas History