UNT Libraries Government Documents Department - 6 Matching Results

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Cotton-Gin.

Description: Patent for a cotton gin that removes lint-cotton from the saws using an air-suction mechanism instead of a brush, which pose a fire hazard and can impair the gin's effectiveness. An air-blast mechanism is also an ineffective method of cleaning lint-cotton from the saws. The air-suction mechanism sucks "the lint-cotton directly from the rear portions of the saw-teeth independently of and without a brush, and an apparatus for preventing the withdrawn lint-cotton from passing into and through the … more
Date: September 29, 1896
Creator: Graber, Henry W.
Item Type: Refine your search to only Patent

Current-Controler or Rheostat.

Description: Patent for an electric-current control or rheostat to be used when a "close, accurate, and absolute graduation of the current is necessary" (lines 15-16), in places "where a very delicate graduation is necessary either in passing the plain galvanic current or where the current is used for producing anesthesia" (lines 19-21).
Date: December 29, 1896
Creator: Werner, Ernest Emil
Item Type: Refine your search to only Patent

Whiffletree.

Description: Patent for an all-metal one-piece whiffletree of "strength, economy, durability, and lightness" (lines 21-22) with solid metal ends that interlock with trace-hooks and prevent "the trace-coupling from becoming accidentally disconnected" (lines 26-27), including illustrations.
Date: November 29, 1892
Creator: Flatau, Louis S.
Item Type: Refine your search to only Patent
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