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Cotton-Cleaner.

Description: Patent for a machine that cleans cotton by placing the seed into a rotating cylinder it is carried and removed using air presser through spiral fan blades and pins to rid impurities, including illustrations.
Date: September 11, 1860
Creator: Smith, Charles
Item Type: Refine your search to only Patent

Improvement in Gun-Locks.

Description: Patent for gun locks: "This invention relates to the arrangement of a complete hair trigger for Colt's revolving pistols, which is so constructed that it may be adjusted to anyone of said pistols without the assistance of a gunsmith, the only tool required for the purpose being a screw driver." (lines 21-26.)
Date: September 11, 1866
Creator: Schenck, F.
Item Type: Refine your search to only Patent

Improved Bridge.

Description: Patent for an invention that "is to provide certain improvements in the construction of bridges, whereby the parts thereof, of wood, may be readily removed for the substitution of others, when decayed or broken, without interfering with the use of the bridge or weakening it (lines 10-15)". The patent includes instructions and illustrations.
Date: January 11, 1870
Creator: McDowell, H. S.
Item Type: Refine your search to only Patent

Improvement in Beef-Steak Tenderers.

Description: Patent for improvement in beef-steak tenderer by mounting “two studded or pointed rollers on to a stand; the rollers are arranged one above another, in order to mash the steak by rolling the meat between the rollers.” (Lines [6-9]) Illustration is included.
Date: October 11, 1875
Creator: Billington, Theophilus
Item Type: Refine your search to only Patent
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