Resource Type

Triple Valve for Fluid-Pressure Brakes. (open access)

Triple Valve for Fluid-Pressure Brakes.

Patent for a triple valve for fluid-pressure brakes in trains that prevents accidental triggering of the emergency brakes.
Date: October 10, 1911
Creator: Robinson, John W. & Douglas, Frank L.
System: The Portal to Texas History
Improvement in Ironing Apparatus. (open access)

Improvement in Ironing Apparatus.

Patent for "a machine for ironing clothing by means of a revolving heated roller, under which is passed a reciprocating table, on which the clothing is placed." (Lines 7-11) Includes instructions and illustrations.
Date: October 24, 1876
Creator: Bailey, Charles F. & Perrenot, George F.
System: The Portal to Texas History