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Steam Vacuum Pump.

Description: Patent for a new and improved steam vacuum-pump. This design consists in "[t]he combination, with a pump-cylinder, the water inlet and outlet pipes, a condenser-pipe, a steam-pipe, and valves located in the several pipes, of a vertically-movable rod having stops thereon, levers connecting the rod with the valves in the condenser-pipe and steam-inlet pipe, and a float loosely mounted on the rod and adapted to actuate the same" (lines 62-70).
Date: April 13, 1886
Creator: Hensley, Frank A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pen or Pencil Holder.

Description: Patent for a new and improved pen or pencil holder. This design obviates "many of the serious objections to the ordinary pen-holder . . . among which may be mentioned cramp and that which is known as 'writer's paralysis.' In addition to this the use of this device will save many tedious hours to the child who is learning to write, as by its use no time will be wasted in teaching the child how to hold his [or her] pen or pencil" (lines 69-77).
Date: April 19, 1887
Creator: Merrick, Sarah J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent for "an engine that is adaptable to all kinds of work, and which is capable of running the heaviest locomotive and the lightest sewing-machine with equal ease and satisfaction" (lines 9-13).
Date: April 23, 1889
Creator: Hines, John Fletcher, Sr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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