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UNT Libraries Government Documents Department
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Taylor County, TX
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Texas Patents
Adding-Machine.
Date: May 12, 1891
Creator: Wright, Joseph W.
Description: Patent for am adding machine by using two disks, one a units-disk with pins in multiples of ten, one a tens-disk, is an annular disk with pin surrounding the units disk, an outwardly spring-pressed holder having a beveled outer end frictionally engaging the pins of the tens-disk and a carrier having oppositely-beveled ends engaged a supplemental pin and one pin on the tens-disks, teeth in the adjacent faces of the holder and carrier, and an idle-gear between them to enable the adding operation. (Lines 50-62) Illustration is included.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:texashistory.unt.edu/ark:/67531/metapth172691/
Nut-lock.
Date: March 29, 1892
Creator: Terry, David Crockett
Description: Patent for improvements in the means for securing nuts on their bolts. The invention is "especially adapted for use on railway-rails in which the locking devices are subjected to severe and continual jarring" (lines 13-16) including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:texashistory.unt.edu/ark:/67531/metapth172987/
Tire-Heater.
Date: June 16, 1891
Creator: Cook, Nathan H.
Description: Patent for improvements in “tire-heating furnace where tires of various sizes may be heated either independently or continuously and having certain other highly advantageous characteristics.” (Lines 7-13) Illustration is included.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:texashistory.unt.edu/ark:/67531/metapth172720/