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4 Matching Results
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Apparatus for Automatically Photographing Persons Moving Along a Confined Way.
Patent for a device to automatically take photographs of persons as they walk over a pressure sensor. The inventor suggests the device be used for ticket fare enforcement.
Date:
July 28, 1914
Creator:
Cannon, Burrell
System:
The Portal to Texas History
Attachment for Harness.
Patent for a new and improved harness attachment. This design utilizes two disks, "one being notched in its thick or heavy edge and the other being notched in its thin or less weighty portion . . . thus effectively closing the space that would otherwise be left at the point of the hook, and preventing the ring . . . from becoming detached" (lines 55-63).
Date:
June 28, 1881
Creator:
Baton, Durham D.
System:
The Portal to Texas History
Lumber-Truck.
Patent for a simple and durable lumber truck that is "arranged to conveniently load and carry lumber to and from kilns and other places" (lines 9-11). It has double flanged wheels in independent frames that are connected by crossbars.
Date:
March 28, 1893
Creator:
Dodge, Edward
System:
The Portal to Texas History
Rotary Engine
Patent for a rotary engine "that may be made to effectively employ the full expansive force of the steam or other motive fluid in a uniform manner" (lines 12-14). Illustrations included.
Date:
May 28, 1907
Creator:
Kelly, George A.
System:
The Portal to Texas History