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Toy Torpedo Exploder
Patent for a toy torpedo exploder. Illustration included.
Date:
November 29, 1904
Creator:
Hutchinson, Searcy T.
System:
The Portal to Texas History
Electrical Horometer.
Patent for a new and improved electrical horometer. This design consists, in addition to a switch-board with electric circuit terminals, "of a bell-crank lever pivoted to the switch-board and making the connection between said terminals, said lever having at one end a handle and at the other end a detent engaging with the ratchet-wheel when the circuit is opened, the said wheel being mounted upon the extended portion of one of the shafts of a clock or other suitable registering mechanism" (lines 1-8).
Date:
November 29, 1887
Creator:
Hammond, Benjamin M.
System:
The Portal to Texas History
Wall-Block.
Patent for an improved wall block that is designed in a T-shape so that the pieces will interlock providing stability and preventing cracks in a foundation.
Date:
November 29, 1921
Creator:
Hull, John W.
System:
The Portal to Texas History