Toy Torpedo Exploder (open access)

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. (open access)

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. (open access)

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