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3 Matching Results
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Wire Tightener.
Patent for wire tightening improvement.
Date:
April 3, 1900
Creator:
Hansford, James, S.
System:
The Portal to Texas History
Pneumatic Conveyer.
Patent for pneumatic conveyer using cars, cylindrically-shaped runners, tracks, and lubrication device, including illustrations.
Date:
January 3, 1893
Creator:
Vernon, William E.
System:
The Portal to Texas History
Stamp Canceler and Register.
Patent for a new and improved stamp canceller. This design "consists in the combination, with an ordinary hand canceling device, of an indicator" (lines 22-24). This design utilizes a lever, and "[b]y properly adjusting [it], the device will indicate the cancellation of one-cent or three-cent stamps, and it is obvious that by making similar and proper provision for the adjustment of the throw of [the lever] the cancellation of stamps of any denomination may be indicated" (lines 83-89).
Date:
May 3, 1881
Creator:
Lupton, Lewis R.
System:
The Portal to Texas History