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Mechanical Attachment for Pianos and Organs

Description: Patent for a "mechanical attachment for pianos and organs whereby and musical composition executed upon the instrument shall be automatically recorded upon a travelling strip or band or, if preferred, on the cylindrical surface of a revolving drum" (lines 10-15).
Date: May 31, 1892
Creator: Harriman, John Emery, Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Pump and Motor.

Description: Patent for a new and improved pump and motor. This design "is to produce a simple apparatus which may be connected with a main water or service pipe and which will operate by the fluctuation of pressure in said main or pipe so as to operate the pump. The device is especially advantageous in raising water from a well or cistern to a tank placed at a higher elevation, or it may be placed on a pump in place of an air-chamber and used as a feed-pump for a boiler or on a hydraulic ram as an auxiliar… more
Date: May 3, 1892
Creator: Henderson, Thomas
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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