UNT Libraries Government Documents Department - 3 Matching Results

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Improvement in Two-Horse Equalizers.

Patent for an adjustable device that redistributes weight so that two animals of unequal strength can perform their equal share of work. Includes instructions and illustrations.

Date: August 2, 1870

Creator: Sims, Zachariah B.

Item Type: Patent

Cotton-Chopper

Patent for "a cotton-cultivator which will chop out the superfluous plants and at the same time work up the soil between the rows of plants, the implement being made to straddle the row and produce a fine tilth on both sides thereof" (lines 15-20).

Date: September 2, 1890

Creator: Smith, Thomas H.

Item Type: Patent

Spring-Motor for Fans

Patent for "a device for operating a fan or other object to which it is desirable to give a continuous reciprocating motion" (lines 12-15).

Date: October 2, 1888

Creator: Houston, George Webster

Item Type: Patent

UNT Libraries Government Documents Department - 3 Matching Results

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Improvement in Two-Horse Equalizers.

Cotton-Chopper

Spring-Motor for Fans