Self-Signaling Device For Railroads. (open access)

Self-Signaling Device For Railroads.

Patent for a self-signalling device for railroads that is simple and efficient. Instructions and illustration included.
Date: April 11, 1916
Creator: Littlepage, Rufus E.
System: The Portal to Texas History
Fumigator and Insect Destroyer (open access)

Fumigator and Insect Destroyer

Patent for a fumigator and insect destroyer. Illustration included.
Date: April 11, 1905
Creator: Frazer, James A.
System: The Portal to Texas History
DRAFT-EQUALIZER (open access)

DRAFT-EQUALIZER

Patent for a device to equalize the draft among 1-6 horses when attached to a plow.
Date: April 1, 1902
Creator: INGRAM, JOSEPH D.
System: The Portal to Texas History
Reversible Spring-Motor. (open access)

Reversible Spring-Motor.

Patent for a spring-motor for bicycles, street and railway cars, and other vehicles which is meant "to accumulate and store surplus power which is usually lost in stopping vehicles and in holding back the same when descending steep grades, the purpose being to utilize such stored power for the purpose of propelling the vehicle up an incline or at whatever point additional power may be found desirable." (Lines 17-24) Includes instructions and illustrations.
Date: April 20, 1897
Creator: Click, John Jones
System: The Portal to Texas History