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Counties
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Mechanical Calculator.
Patent for improvements in pivoting arm and sliding arm calculators. Includes instructions and illustrations.
Date:
April 28, 1891
Creator:
Mader, Theodore
System:
The Portal to Texas History
Design for a Spoon.
Design patent for a souvenir spoon typical or representative of the state of Texas; "The leading feature of [the] design is a head and bust of Davy Crockett, which forms the outer and wide end of the handle...About the middle of the shank and projecting on each side of the same is the lone star, while on the bowl of the spoon is a representation of the old building known as the 'Alamo'" (lines 14-22).
Date:
August 23, 1892
Creator:
Hughes, Joseph A.
System:
The Portal to Texas History
Piano Tuning-Pin
Patent for a piano tuning pin that has "superior advantages and of a simple and effective construction and arrangement of parts, which will provide for a more accurate tuning of the piano with which the device is used and at the same time preserve the strings against breakage by avoiding the use of sharp corners" (lines 14-18).
Date:
November 22, 1892
Creator:
Enos, Henry B.
System:
The Portal to Texas History