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Improvement of Cotton Cleaners and Condensers

Description: Patent for changes in the parts of cotton cleaner and condenser machinery, includes illustrations. The changes in machinery seek to eliminate impurities in the cotton while also compacting the cotton into a sheet.
Date: May 1, 1877
Creator: Greaves, James
Partner: UNT Libraries Government Documents Department

Improvement in Door-Checks.

Description: Patent for "a device for holding the doors in open position, which is readily applied to the door and worked without noise or jamming; and the invention consists of a holder or knob, with recessed front end, attached to the base-board, and of a counter-sunk door plate or case provided with a rubber block, that binds on the recessed part of the holder to retain the door in open position." (Lines 10-18) Includes instructions and illustrations.
Date: July 17, 1877
Creator: Francis, John
Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Cleaners

Description: Patent for a device that enhances the performance of cotton-cleaner machinery.
Date: May 1, 1877
Creator: Greaves, James
Partner: UNT Libraries Government Documents Department

Improvement in Cotton Cleaner and Condenser.

Description: Patent for improvements to machinery for cleaning cotton by passing the raw material over various sizes of mesh and using air to draw out dirt.
Date: November 27, 1877
Creator: Donovan, John T.
Partner: UNT Libraries Government Documents Department
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