Resource Type
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5 Matching Results
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Electrically-Operated Door.
Patent for am electrically-operated door. This device has mechanisms that are when stepped on automatically open and close the door.
Date:
August 1, 1916
Creator:
Cain, Ira L.
System:
The Portal to Texas History
Cotter-Pin Puller
Patent for cottor-pin puller that is useful to pull cotter pins that are secured in shafts, fly wheels or any other devices without bending or twisting or damaging them.
Date:
October 31, 1916
Creator:
Hayden, Jefferson B.
System:
The Portal to Texas History
Electric Prod Pole
Patent for electric prodding pole used for corraling animals.
Date:
December 26, 1916
Creator:
Smith, William A.
System:
The Portal to Texas History
Marker.
Patent for improvement in markers "used in filing and card index cabinets" (lines 6-7).Meant to "provide a light, simply constructed V-shaped device" (lines 11-13), to mark the location of papers or files that have been temporarily moved from a filing system.
Date:
July 25, 1916
Creator:
Wells, Spencer A.
System:
The Portal to Texas History
Gearing
Patent for improvements in gearing, "especially adapted for use in connection with wind mills and other devices" (lines 9-11) including illustrations.
Date:
April 11, 1916
Creator:
Wiggins, Hundley
System:
The Portal to Texas History