Apparatus for Chilling and Whitening Lard Compounds (open access)

Apparatus for Chilling and Whitening Lard Compounds

Patent for an apparatus for chilling and whitening lard compounds that produces stiffer lard.
Date: August 27, 1912
Creator: Humphreys, Jerome N.
System: The Portal to Texas History
COUPLING PATENT (open access)

COUPLING PATENT

This patent is for a new coupling system to connect hollow pipes. It is specifically designed to address issues of vibration, which cause the coupling pin to become damaged.
Date: July 10, 1919
Creator: Hiegel, Joseph L.
System: The Portal to Texas History
Keyboard for Writing Machines. (open access)

Keyboard for Writing Machines.

Patent for improved keyboards for writing machines "having its keys so arranged that the fingers of the operator may rest upon the keyboard in an easy and natural manner, the keys being so disposed with relation to each other that the fingers of the operator may reach all of them with the least possible strain or exertion" (lines 16-22). This improvement allows the operator to work at maximum speed and efficiency.
Date: April 17, 1917
Creator: Edwards, Alrah B. & Russell, Frank K.
System: The Portal to Texas History
Writing-Machine. (open access)

Writing-Machine.

Patent for writing-machine mechanism which prolongs the life of the ribbon and provides "means to rotate the platen step by step at each actuation of one or more of the keys" (line 20).
Date: April 24, 1917
Creator: Edwards, Alrah B. & Russell, Frank K.
System: The Portal to Texas History