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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-Compressor for Water-Elevators.

Description: Patent for "an improvement in air-compressors for water-elevators, and it consists in the novel mechanism for compressing air, by which water is designed to be raised from a cistern, or other reservoir." (Lines 13-17) Includes instructions and illustrations.
Date: December 10, 1895
Creator: Warren, Governor D.

Air Motor.

Description: Patent for a new and improved air-motor. This design is of an "air-motor, consisting of an engine, single-acting air-pump, air-receiver, and the double-acting exhaust-pump, with the valves and connections . . . [and] the levers and segments" (lines 81-87).
Date: July 21, 1885
Creator: Koniakowsky, Alois M.

Airship

Description: Patent for an airship that is equipped with gas bags to control the ascent and descent of the airship and make it float in case of landing in the water.
Date: June 11, 1912
Creator: Bradshaw, John F. W.

Alarm.

Description: Patent for an alarm designed to attach to windows or entryways and sound to alert residents of a burglary attempt, with illustrations.
Date: May 29, 1906
Creator: Hobbs, Francis Marion

Alarm Attachment for Electric Bells.

Description: Patent for "an Alarm Attachment for Electric Bells." "The object in view is the provision of means for facilitating the change of an ordinary door-bell into a continuously-ringing alarm apparatus, while leaving the mechanism free to be changed back into its former operative condition as a door-bell."(Lines 10-15) Including illustrations and instructions.
Date: June 30, 1902
Creator: Blakeney, Henry