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4 Matching Results
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Mechanical Movement.
Patent for a mechanical movement for ratchet feeding mechanisms " in which movement is imparted from a rocking lever to a ratchet wheel through the medium of a plurality of pawls that are so connected to the lever as to operate on the ratchet wheel during movement of the levers in both directions"(lines 10-16).
Date:
March 16, 1909
Creator:
Oswald, William S.
System:
The Portal to Texas History
Post driver
Patent for a portable post driver.
Date:
March 16, 1900
Creator:
Armstrong, Joseph Milton
System:
The Portal to Texas History
Necktie-Retainer
Patent for necktie retainers that can be slipped into turndown collars while retaining neckties or scarfs against pulling down or moving sidewise, with illustration (lines 10-15).
Date:
March 16, 1915
Creator:
Yeager, Margaret Sanders
System:
The Portal to Texas History
Combined Swingletree and Evener.
Patent, including illustrations, for improvements to combined swingletrees and eveners, tools used to equalize strain between a draft animal and vehicle, "which is easily and simply constructed, inexpensive to manufacture, and one which will be very efficient in operation" (lines 22-25).
Date:
March 16, 1920
Creator:
White, Floyd N.
System:
The Portal to Texas History