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Improvement in Animal-Traps

Description: Patent for "traps for catching large and small animals; and it consists in the combination of a number of inclined plates or boards, provided with spurs on their lower ends and hinged to fixed ridges on their upper ends, so arranged as to form ridges or elevations and depressions, and to entrap the animals by holding their legs between the spurred ends of said inclined plates" (lines 15-23).
Date: April 14, 1874
Creator: Flournoy, Rice Smith
Item Type: Refine your search to only Patent

Improvement in Apparatus for Preserving Meat, &c.

Description: Patent for "an improved apparatus for use in fumigating substances used as food; and also for impregnating water with sulphurous-acid gas, for the purpose of preserving such substances by the antiseptic quality of sulphur" (lines 9-14). Includes instructions and illustrations.
Date: January 15, 1878
Creator: Ames, Theodore George
Item Type: Refine your search to only Patent

Improvement in Apparatus for the Manufacture of Gas from Oils.

Description: Patent for "machines for the manufacture of gas from oils, benzine, gasoline, &c.; and it consists in providing the tank or cistern with a retort constructed with an outer cylinder surrounding one or more cylinders or tubes, which inner cylinder is provided with perforated plates at the top and bottom thereof, and the space between said plates filled with sponge or other porous material, while the space or chamber between the inner and outer shell of the retort serves as a mixing-chamber for th… more
Date: June 18, 1872
Creator: Gearing, Charles & Gearing, Franklin A. G.
Item Type: Refine your search to only Patent
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