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DRAFT-EQUALIZER

Description: 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.
Partner: UNT Libraries Government Documents Department

Reversible Spring-Motor.

Description: 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
Partner: UNT Libraries Government Documents Department

Self-Signaling Device For Railroads.

Description: 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.
Partner: UNT Libraries Government Documents Department

Fumigator and Insect Destroyer

Description: Patent for a fumigator and insect destroyer. Illustration included.
Date: April 11, 1905
Creator: Frazer, James A.
Partner: UNT Libraries Government Documents Department
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