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3 Matching Results
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Burglar-Alarm.
Patent for a burglar alarm, designed to be simply constructed and installed.
Date:
November 29, 1921
Creator:
Stephens, William B.
System:
The Portal to Texas History
Washing-Machine
Patent for "certain new and useful Improvements in Washing-Machines" (lines 4-5) including instructions and illustrations.
Date:
November 29, 1892
Creator:
Wilson, Lucindia Jane
System:
The Portal to Texas History
Car Coupling.
Patent for a new and improved coupling for railroad cars. This design "has relation to that class of car-couplings in which the open ends of a coupling bar or link are engaged by hooks in the draw-heads; and it consists in the improved construction and combination of parts of such a coupling, in which the hooks are projecting from the under sides of arms pivoted upon the draw-heads and dropping down by their gravity, and in which the said hooks project into registering recesses in the upper side of the draw-head" (lines 23-33).
Date:
June 29, 1886
Creator:
Boyers, Robert L.
System:
The Portal to Texas History