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5 Matching Results
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Electric Switch
Patent is for electric switch that minimizes other phone interference and limits each call to a single caller on the line. Two lines can be connected to the switch.
Date:
December 4, 1917
Creator:
Teare, J. W.
System:
The Portal to Texas History
Govering-Machine.
Patent for certain new and useful improvements in rag joiners, including instructions and illustrations.
Date:
July 4, 1899
Creator:
Vining, Lucinda
System:
The Portal to Texas History
Flying Machine
Patent for a flying machine. Illustrations included.
Date:
April 4, 1911
Creator:
Love, James L.
System:
The Portal to Texas History
Acetylene-Gas Generator.
Patent for an acetylene-gas generator that consists of “a suitable frame, a receptacle positioned within said frame, and a gas-bell” (lines 11-13), as well as a gasometer and carbide feed. As a result, the gas generator “will continually furnish dry, cool gas and at a substantially even pressure at all times” (line 22-24). Illustrations included.
Date:
June 4, 1907
Creator:
Hays, Parx Orr
System:
The Portal to Texas History
Covering-Machine.
Patent for certain new and useful improvements in rag joiners, including instructions and illustrations.
Date:
July 4, 1899
Creator:
Vining, Lucinda
System:
The Portal to Texas History