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Record-Printing Device.
Patent for record printing device that is used on cars for mechanics to record the car number and other data. The printing device is more durable especially though rough weather and easy to use by the mechanic.
Date:
March 22, 1921
Creator:
Gray, Dexter B.
System:
The Portal to Texas History
Improvement in Vibrating Propellers.
Patent for new and useful improvement in vibrating propellers.
Date:
December 22, 1874
Creator:
Macowitzky, Charles P.
System:
The Portal to Texas History
Shirt.
Patent for an improvement in shirts which have the ability to be reversed in the event that one side should become soiled; includes illustration.
Date:
June 22, 1915
Creator:
Miles, John J. & Williams, Jerome 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
Razor.
Patent for a safety razor, with the objects of a creating a novel frame for holding a razor blade of any desired sort, and so that the vibrations will not be transferred to the carrying frame.
Date:
June 22, 1920
Creator:
Brasier, William Harry
System:
The Portal to Texas History