3 Matching Results

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Improvement in Traction-Engines. (open access)

Improvement in Traction-Engines.

Patent for a traction engine "for running on common roads and rails, and to be used for drawing plows, and as a motive power generally" (lines 8-10) including illustrations.
Date: July 31, 1877
Creator: Walker, Leander
System: The Portal to Texas History
Improvement in Breech-Loading Fire-Arms. (open access)

Improvement in Breech-Loading Fire-Arms.

Patent for improvements in Winchester Repeating fire-arms, or magazine fire-arms. Patent for improvements in the "interior mechanism for operating the breech-block and resisting the recoil, and in the combination of parts". Patent that increases strength and capability to resist recoil, increases the charge of powder. Together, the ball is carried faster and farther with "perfect safety and without increase of recoil or rebound".
Date: July 31, 1877
Creator: Petmecky, Joseph C.
System: The Portal to Texas History
Improvement in Cotton-Harvesters. (open access)

Improvement in Cotton-Harvesters.

Patent for "the construction and arrangement of a cotton-picking machine" (lines 15-16) using wire brushes on rods and chains, including illustrations.
Date: July 31, 1877
Creator: Graves, Clinton E.
System: The Portal to Texas History