UNT Libraries Government Documents Department - 4 Matching Results

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Machine for Cutting Key-Seats in Shafting

Patent for "cutting key-seats in shafting machine. It provides a portable key-seat-cutting especially adapted to operate upon the driving shafts of locomotives in key-seating eccentrics thereon." (lines 7-13)

Date: August 21, 1906

Creator: Matheus, Karl

Wrench.

Patent for a new and improved wrench. This design is "especially adapted for manipulating pipe-joints, though applicable, also, for use in manipulating nuts, &c.; and it consists in the [novel] detailed construction and combination of operating parts" (lines 24-28).

Date: September 21, 1880

Creator: Weir, Duncan

Improvement in Cotton and Hay Presses.

Patent for improvements in baling-presses. It consists of movable followers and a sliding drum that has a ratchet secured to a clutch and a shaft. It includes illustrations.

Date: January 21, 1879

Creator: Smithson, Richard T.

Piano Action

Patent for piano actions. This invention provides a connection between the bridle strap and the hammer butt of a piano action. Illustration included.

Date: May 21, 1907

Creator: Deutsch, John H.