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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.
Description: Patent for improvement in churns by using an oblong box with a diamond-shaped dash fixed in the box. The churning is done by rapidly swing the box back and forth until butter is obtained. Illustration is included.
Date: October 8, 1872
Creator: Cottingham, Gideon W.
Description: Patent for Improvements to cotton-sprinklers that provides "effective distribution of poisonous liquids upon cotton-plants, for the purpose of destroying the cotton-worm or other destructive insects." (lines 15-18) Includes instructions and illustration.
Date: November 11, 1879
Creator: Schier, John
Description: Patent for a wheeled vehicular device to destroy cotton worms that can be connected to a horse or a wagon. It carries a poisonous cotton-worm destroying agent and disburse this substance on crops or foliage to deter worms.
Date: October 13, 1873
Creator: Johnson, Jehu W.
Description: Patent for an "improved apparatus by means of which ground-squirrels and gophers can be destroyed in their holes, conveniently and effectively, and at small expense" (para. 4). The mechanism works by gassing underground vermin with sulphuric fumes.
Date: July 10, 1877
Creator: Dreyer, Henry
Description: Patent for a method of destroying ants by digging a pit beside a colony, filling the hole with combustible materials and poisons, placing a pipe through the hole and into the mound, and then setting the pit ablaze.
Date: October 28, 1873
Creator: Dulany, John J. & Dreyer, Henry
Description: Patent for "certain new and useful Improvements in Safety-Guards for Cars" (lines 5-6) intended to pervent derailment of railway cars, including a detailed explanation and description of the illustration.
Date: February 5, 1878
Creator: Harding, John W. & Towell, Issac
Description: Patent for an improvement in Chain-Wheels consisting "in the construction and arrangement of a device for drawing water from wells, which shall be cheap, convenient, and free from danger, as will be hereinafter more fully set forth."
Date: July 27, 1878
Creator: Knipscheer, John