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4
Cultivator Foot.
Patent for a cultivator foot that allows shovels or sweep blades to be quickly attached to it or detached from it.
Date:
June 1, 1915
Creator:
Vance, Caughey C.
System:
The Portal to Texas History
Wax.
Patent for improving wax to be used by shoemakers consisting of gasolene [sic], rosin and pine tar. The improved wax adheres to the shoe leather and the threads making both the leather and the seams waterproof and more supple. This wax product does not blacken the hands of the shoemaker.
Date:
May 18, 1915
Creator:
Vest, Harvey P.
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock that can be easily applied and detached from a bolt. Will lock screws in place to avoid accidental rotation of the bolt and is less expensive to make.
Date:
February 16, 1915
Creator:
Boren, W. E.
System:
The Portal to Texas History
Envelop.
Patent for an envelope that employs a lock and seal mechanism to increase security of contents. The envelope cannot be opened without tampering or mutilating the envelope.
Date:
January 26, 1915
Creator:
Wallace, Curtis C.
System:
The Portal to Texas History