UNT Libraries Government Documents Department - 37 Matching Results

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Improvement in Cotton-Condensers.

Description: Patent to improve the compressing-roller design in a cotton gin, to keep the mechanisms from clogging. This is an addition to a previous patent by the same inventor that improved methods of cleaning the cotton. It includes an explanation with references, and illustrations.
Date: December 10, 1878
Creator: Donovan, John T.
Item Type: Refine your search to only Patent

Improvment in Cultivators.

Description: Patent for improvement in digging or cultivation machines primarily adapted to the cultivation of cotton. Includes parts that can be added or removed from the machine, thereby reducing the number of machines needed for farm work. Includes illustrations and instructions.
Date: September 10, 1872
Creator: Forsgard, Gustave A.
Item Type: Refine your search to only Patent

Improvement in Metallic Window-Blinds.

Description: Patent for "a blind which acts both as a barrier to the progress of flames attacking windows and as a convenient shutter for the common purposes, and is adapted to be adjusted and securely locked in an open or closed position." (Lines 21-26) Includes instructions and illustrations.
Date: August 10, 1875
Creator: Mackrell, William S.
Item Type: Refine your search to only Patent

Improvement in Masks for Horses and Cattle.

Description: Patent for a slitted leather mask for animals to be used for horses, cattle, etc. to deter the jumping of fences. Patent for "mask, covering the eyes of the animal, leaves him with a sufficiently free vision, and being thoroughly ventilated, will not injure his eyes".
Date: July 10, 1877
Creator: Trueblood, Albert H
Item Type: Refine your search to only Patent

Improvement in Bale-Ties.

Description: Patent for "a perfectly-tight fastening - one that will not slip or give, and one that can be easily and quickly unfastened without cutting the band, or in any way injuring the part." (Lines 16-20) Includes instructions and illustrations.
Date: October 10, 1876
Creator: Krieg, Christian
Item Type: Refine your search to only Patent

Improvement in Plows.

Description: Patent for "an improved plow, which shall be so constructed that it may be readily adjusted for use as a subsoil-plow, as a turning-plow, as a scraper and cultivator, and as a scraper, cultivator, and hiller, and which shall be simple in construction and effective in operation in either capacity." (Lines 11-18) Includes instructions and illustrations.
Date: October 10, 1876
Creator: Newton, John R.
Item Type: Refine your search to only Patent

Improvement in Postage or Revenue Stamps.

Description: Patent for an improvement in postage or revenue stamps. Patent for postage or revenue stamp "composed of two superposed sheets or layers, A B, the top layer carrying the printed designs, having parallel incisions therein, and the bottom layer being provided with adhesive material on the back". Patent for postage and revenue stamps that cannot be re-used.
Date: July 10, 1877
Creator: Beaumont, David G.
Item Type: Refine your search to only Patent
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