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Air-Compressing Apparatus.

Description: Patent for a new air compressing apparatus which employs two kinds of tanks called high pressure containers and low pressure containers charged by means of an air compressing engine.
Date: March 16, 1915
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department

Hose or Pipe Coupling.

Description: Patent for a hose or pipe coupling that automatically couples cars, and uncouples one or more pipes are automatically uncoupled by steam, air, or fluid pressure. The "invention consists of a pair of twin couplers through each of which one or more tubes are conducted, the apertures of which in the face of one coupler register with those in the face of the opposite coupler, each coupler being provided with guides or other suitable means for bringing it into alignment with the other and with a bolt or latch which automatically engages the opposite coupler when they are brought together and is released by steam or other pressure through one of the connecting pipes, in order to uncouple; and it further consists in a valve connection with said coupler pipes whereby the connecting pipe or pipes are closed in the act of uncoupling" (lines 13-28).
Date: August 15, 1893
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for a car coupling that "couples automatically and by which a brakeman on a single car can uncouple one or more cars and to provide pipe connections between the cars for this and other purposes" (lines 9-13). It has a pivoted drawhead with lever connections to a piston head and uses steam connections with the cylinder in the piston head to couple.
Date: April 25, 1893
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department

Painting-Machine.

Description: Patent for an automatic device that paints large surfaces that has a reservoir for the paint, a brush that sweeps similarly to an expert painter, a mechanism that dips the brush in the paint, and an air pump that is connected to the reservoir to bring the paint to the brush. Multiple brushes and reservoirs can be used with this machine. The pump may be operated by hand or by machine.
Date: September 12, 1893
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department