Resource Type

States

Internal Combustion and Air Compressing Engine (open access)

Internal Combustion and Air Compressing Engine

Patent for internal combustion and air compressing engine. Illustration included.
Date: October 19, 1909
Creator: Risley, Ward & Risley, Zeph L.
System: The Portal to Texas History
Folding Car-Step. (open access)

Folding Car-Step.

Patent for folding steps attached to a railway car or trolley, which are easily operated by the conductor and when folded block the exit of the car to prevent passengers leaving or entering without the steps.
Date: October 29, 1907
Creator: Felkner, William G.
System: The Portal to Texas History
Fender for Cultivators. (open access)

Fender for Cultivators.

Patent for a fender for cultivators or cotton choppers.
Date: October 18, 1910
Creator: Foster, George M.
System: The Portal to Texas History
Rotary Reversible Engine (open access)

Rotary Reversible Engine

Patent for rotary reversible engine. Illustrations included.
Date: October 19, 1909
Creator: Risley, Ward & Risley, Zeph L.
System: The Portal to Texas History