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Air Brake Attachment.
Patent for "mechanism for use in connection with railway cars for automatically controlling the air brakes," including instructions and illustrations.
Date:
April 17, 1917
Creator:
Flowers, Malon Inghram & Sale, Archie Pierce
System:
The Portal to Texas History
Plow Stock.
Patent for improvements to a plow stock to be adjustable so that the angle of the plow blade may be controlled causing the plow blade to enter the ground at the proper angle based on the type of ground being plowed.
Date:
December 4, 1917
Creator:
Partin, William E.
System:
The Portal to Texas History
Gearing for Gin Saw Cleaners
Patent for an improvement on a previous patent relating to a gearing for gin saw cleaners. Development and use are within text; includes illustrations to demonstrate the object of the patent.
Date:
December 11, 1917
Creator:
Robertson, Osborn Bragg
System:
The Portal to Texas History