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Improvement in Car-Couplings.
Patent for improved construction and arrangement of car-couplings.
Date:
July 24, 1877
Creator:
McCarty, Ezra B. & Heagerty, James
System:
The Portal to Texas History
Improvement in Gin-Saw-Filing Machines.
Patent for a "gin-saw-filing machine consisting, essentially, of a rotary and intermittingly movable file, of an intermittingly-operated feed and check device, and of adjustable reciprocating sharpening-files".
Date:
July 24, 1877
Creator:
Eastham, Albert S.
System:
The Portal to Texas History
Improvement in Valve-Gear for Steam-Engines.
Patent for "an improvement in steam-engines which shall be so constructed as to give a full application of the steam and a free exhaust at regular intervals, which will enable the engine to be easily reversed, can be easily attached to any engine, which will enable an engine to be worked by water-pressure, will run smoothly and with very little friction, and will be very durable." (Lines 11-19) Includes instructions and illustrations.
Date:
July 24, 1877
Creator:
Davis, James H. & White, William
System:
The Portal to Texas History