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Acetylene-Gas Apparatus.

Description: Patent for machines that generate acetylene gas for a "simple and comparatively inexpensive construction, in which the gas is thoroughly washed before entering the service-pipe and in which the water-supply to the generator is controlled by the gas pressure and the carbid kept at all times cooled by surrounding water" (lines 11-17).
Date: December 4, 1900
Creator: McGoldrick, William Hamilton

Acetylene Gas Torch

Description: Patent for a acetylene gas torch. Illustration included.
Date: October 1, 1903
Creator: Marsh, William H.

Acetylene Generator

Description: Patent for an acetylene generator. Illustration included.
Date: March 27, 1905
Creator: Sinclair, William

Adjustable Bench Hook.

Description: Patent for a new and improved bench hook. This design "consists in a bench-hook constructed with a plate carrying a sliding bar, to which is adjustably secured a hook. The sliding bar and hook are locked in place by a clamp and cam attached to the plate, and the plate and its attachments are locked to the bench-front by a stationary lug attached to the plate, and a moveable lug attached to a lever pivoted to the said plate and locked in place by a cam, so that the said hook can be readily adjusted upward, downward, forward, and backward" (lines 20-30).
Date: July 22, 1884
Creator: Cooper, Harry

Adjustable Bicycle-Rest.

Description: Patent for a new and useful adjustable bicycle-rest, including instructions and illustrations.
Date: January 23, 1900
Creator: Wise, Harry

Advertising Street Car Sign

Description: Patent for an advertisement sign located on the top of street cars. Illustration included.
Date: March 5, 1907
Creator: King, Alphonse

Aerodrome

Description: Patent for an aerodrome which is a heavier than air flying machine powered by motorized propellers
Date: August 24, 1909
Creator: Sinclair, William

Aeroplane

Description: Patent for an aeroplane. Illustrations included.
Date: September 19, 1911
Creator: Goodrich, Luman L., Jr.

Aeroplane

Description: Patent for an aeroplane that will maintain its balance in the air automatically
Date: December 5, 1911
Creator: McManus, Augustus F. W.

Aeroplane

Description: Patent for an aeroplane which has its equilibrium maintained by the operator through levers that bring the plane up or down.
Date: December 6, 1910
Creator: McManus, Augustus F. W.

Air Compressor for Deep Well Pumps.

Description: Patent for a new and improved air-compressor. This design "relates to improvements in air-compressing mechanism for the purpose of pumping for forcing from deep wells and performing similar work; and it consists in the construction and arrangement of a larger and smaller air-cylinder, and the combination therewith of mechanism to force the air from the larger into the smaller cylinder to increase the air-pressure in the latter" (lines 22-30).
Date: August 2, 1887
Creator: Adams, John R.

Air-Lift Pump

Description: Patent for an air lift pump. Illustrations included.
Date: October 17, 1911
Creator: Holmgreen, Julius H. & Underwood, William H.

Amusement Device

Description: Patent for an amusement device. This invention is designed as an apparatus for a swing, a trapeze, a horizontal bar, and seesaw. Illustration included.
Date: February 7, 1906
Creator: Haye, August, of San Antonio, Texas

Animal-Trap

Description: Patent for an animal trap. Illustrations included.
Date: January 20, 1908
Creator: Dennis, Decatur D.

Animal-Trap.

Description: Patent for a new and useful animal trap, including instructions and illustrations.
Date: December 5, 1899
Creator: Buckersberg, Simon

Apparatus for Extracting Honey

Description: Patent for an apparatus for extracting honey. Illustration included.
Date: January 14, 1908
Creator: Avant, Leonidas W.

Apparatus for Molding Concrete Walls

Description: Patent for an apparatus for molding concrete walls which is easy to assemble and move around and can be used for different size and shape walls.
Date: March 15, 1910
Creator: Cross, George F.

Apparatus for Use in Dry Out-Houses

Description: Patent for the construction of an improved odorless apparatus for dry out-houses, including explications and illustrations.
Date: March 23, 1886
Creator: Carrico, Thomas W.

Appratus for Treating Refuse Matter.

Description: Patent for "the perfection of an apparatus by the use of which night soil or garbage may be reduced to ashes in the shortest possible time and at a comparatively trivial expense" (lines 20-24).
Date: August 8, 1893
Creator: Carrico, Thomas W.

Armor for Pneumatic Tires.

Description: Patent for a new and useful armor for pneumatic tires.
Date: April 12, 1898
Creator: Hansell, Robert Clark