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CANAL-GATE.
Patent for an improvement to canal-gates that is "a simple and comparatively inexpensive contrivance for receiving a handle of the shank of a handle which is attached to the lock or gate" (lines 18-22) including an illustration.
Date:
March 9, 1920
Creator:
Perry, Charles Franklin
System:
The Portal to Texas History
Hot-Air Mixer
Patent for a device that will create hot air to be delivered to the manifold of gas-powered engines in motor vehicles when the operator pushes a plunger that will open an intake valve.
Date:
March 9, 1920
Creator:
Ingraham, Jerome H.
System:
The Portal to Texas History
Hat Shape Retainer and Loss Preventing Device.
Patent, with illustrations, for an apparatus attached to the sweat band of a hat with the purpose of hat loss prevention and maintaining the hat's shape.
Date:
March 9, 1920
Creator:
Huling, Clint Henry
System:
The Portal to Texas History
Wire-Forming Machine.
Patent for a wire forming machine that takes wire from an intake and automatically forms the wire into clothes pins. This machine also improves the wire feeding mechanism in older models of this type of machine, and it forms a ring that the pins can attach to for the purpose of suspending the pin from a clothes line.
Date:
March 9, 1920
Creator:
Werner, Henry E. & Mitchell, Jordan H.
System:
The Portal to Texas History
Pipe-Tongs
Patent for an improvement on the existing design of pipe tongs, the improvement will allow for one individual to hold the tongs, adjust the size around the pipes, and screw or unscrew the pipe alone. Previous designs required two or three individuals.
Date:
March 9, 1920
Creator:
Hill, Richard Dennie
System:
The Portal to Texas History
Furnace.
Patent for a furnace capable of burning rice hulls, sawdust, chaff, and more "in connection with the boiler for generating steam and which will entirely consume such products without contaminating the surrounding air with the ashes given off" (lines 31-34).
Date:
March 9, 1920
Creator:
Ewing, William E.
System:
The Portal to Texas History