544 Matching Results

Search Results

Results: 1 - 24 next

Improvement in Ventilators.

Description: Patent for improvement in ventilators which combines a bell-mouthed vane with white induction and black eduction pipes for the purpose of introducing fresh air and eliminating foul air from an enclosed area.
Date: December 21, 1875
Creator: Moyer, Alexander L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Air-Cooling Apparatus.

Description: Patent for "the construction and arrangement of a refrigerator for the purpose of cooling and maintaining a low and dry temperature, for preserving fresh meats and vegetables, and for cooling rooms for any purpose." (Lines 10-15) Includes instructions and illustrations.
Date: March 30, 1875
Creator: Hyatt, Frank A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Beer-Refrigerators.

Description: Patent for "an improved refrigerator for cooling lager-beer in the keg, and keep it cool for a long time with a small quantity of ice" (lines 15-18) including illustrations.
Date: August 17, 1875
Creator: Bohart, John N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Presses.

Description: Patent for "a press by means of which the cotton can be backed and pressed into the bale in small quantities at a time, by alternating pressing a quantity, then lifting the follower, and inserting more, and pressing again, and so on until the bale is formed." (Lines 19-25) Includes instructions and illustrations.
Date: November 16, 1875
Creator: Frost, Willis Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen