Resource Type

Month

Weight Motor (open access)

Weight Motor

Patent for a weight motor. This invention is meant for the use of driving fans to circulate rooms. This "invention refers to the winding mechanism wherein a drum on which the cord is wound and the first gear wheel are independently rotatable in one direction on the winding shaft, the latter having keyed thereon two ratchet wheels which engage respectively, pawls on the drum and on the gear wheel" (line 13-20). Illustration included.
Date: March 24, 1908
Creator: Rackley, John Clavin
System: The Portal to Texas History
Pump Rod Coupling (open access)

Pump Rod Coupling

Patent for pump rod coupling. This invention is designed to couple adjacent ends of pistons or pumps. Illustration included.
Date: March 19, 1907
Creator: Fletcher, Homer M.
System: The Portal to Texas History