Switch Operating Mechanism (open access)

Switch Operating Mechanism

Patent for a switch operating mechanism. Illustration included.
Date: March 23, 1909
Creator: Eads, John William
System: The Portal to Texas History
Sign. (open access)

Sign.

Patent for a rotating metal sign, which does not warp from the turning action.
Date: March 23, 1909
Creator: Dazey, Nathan P. & Hall, George W.
System: The Portal to Texas History
Apparatus for Burning Unburnt Gas Products. (open access)

Apparatus for Burning Unburnt Gas Products.

Patent for a new "method for burning all of the products usually known as "waste products" and to eliminate the fumes and poisonous vapors." (lines 27-30) including instructions and illustrations.
Date: March 23, 1915
Creator: Jansen, Andrew
System: The Portal to Texas History
Steam-Cushion Valve. (open access)

Steam-Cushion Valve.

Patent for "a new and useful steam cushion valve, and its object is to provide a steam cushion valve that will sever to automatically retard the exhaust from a cylinder as the piston approaches one of the cylinder heads." (lines 9-14) including instructions and illustrations.
Date: March 23, 1915
Creator: Henry, Nelson B.
System: The Portal to Texas History
Chassis Connection. (open access)

Chassis Connection.

Patent for improvements on chassis connections for fastening a truck body sill on a chassis without boring a hole or weakening the will, while making the connection easier to make as well as more quickly; includes illustrations.
Date: March 23, 1920
Creator: Robinson, Robert F.
System: The Portal to Texas History