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Converting Reciprocating into Rotary Motion
Patent for converting reciprocating into rotary motion by using “two vertically moving racks with a cog wheel on a small shaft between them which gears into the teeth of the racks” (lines 16-19), includes illustration.
Date:
November 1, 1859
Creator:
Harper, C. A.
System:
The Portal to Texas History
Holder for Car and Locomotive Replacing Frogs
Patent for improving railway car frog replacement and holding. The improvements include greater strength and durability and low cost manufacture.
Date:
November 1, 1921
Creator:
Keith, Darwin E.
System:
The Portal to Texas History
Guitar.
Patent for certain new and useful improvements in stringed musical instruments, such as harp guitars, including instructions and illustrations.
Date:
November 1, 1898
Creator:
Ward, George Cooper
System:
The Portal to Texas History
Fence Post
Patent for a fence post. Illustration included.
Date:
November 1, 1904
Creator:
Narsh, Joseph Maxfield
System:
The Portal to Texas History