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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.
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Partner: UNT Libraries Government Documents Department

Stump-Puller.

Description: Patent for a simple and effective stump puller that pulls stumps entirely from the ground using a large amount of force. The machine uses a series of pulleys, hooks, levers, and cranks.
Date: October 31, 1893
Creator: Rupe, Salathiel C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Suspended Rail-Joint.

Description: Patent for a suspended rail-joint that improves on the anglebar railjoint. The improved design has the minimum amount of bolts, does not use railbolts, has a newly designed fastener, allowance for the rails to expand and contract, and adjustable guards against creeping.
Date: July 31, 1894
Creator: Lang, Otto H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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