Wire-Stretcher. (open access)

Wire-Stretcher.

Patent for a wire stretcher tool for use in building wire fences.
Date: April 18, 1911
Creator: Gibbens, Andrew J.
System: The Portal to Texas History
Internal-Combustion Engine (open access)

Internal-Combustion Engine

Patent for an improved internal combustion engine. Among the improvements, it allows "compounding the expansion effect to obtain the highest possible efficiency." ( lines 11-13)
Date: January 16, 1912
Creator: Pearson, Samuel
System: The Portal to Texas History
Pump Attachment (open access)

Pump Attachment

Patent for a pump attachment. Illustration included.
Date: May 10, 1910
Creator: Nuernberger, Otto
System: The Portal to Texas History
Film Developing, Fixing, and Washing Apparatus. (open access)

Film Developing, Fixing, and Washing Apparatus.

Patent for a film developing, fixing, and washing tank.
Date: August 8, 1911
Creator: Nyč, Frederick Francis
System: The Portal to Texas History
Film Developing, Fixing, and Washing Apparatus (open access)

Film Developing, Fixing, and Washing Apparatus

Patent for a film developing, fixing, and washing apparatus with an improved method of rolling the film around the coil in the washing tank.
Date: July 2, 1912
Creator: Nyc, Frederick Francis
System: The Portal to Texas History