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Blasting Cartridge.
Patent for a new and improved blasting-cartridge. This design is "composed of two similar semi-cylindrical sections having flat smooth faces their entire length, adapted to rest or bear against each other and grooved to form the cylindrical fuse-opening" (lines 94-98). It further consists in the "bore tapering from said fuse-opening to the bottom or inner end of the shell, said semi-shells being provided on their outer sides and at their front ends for a portion of their lengths only with sharp-pointed spurs or projections having vertical front walls and sharp inclined rear edges" (lines 1-7).
Date:
July 2, 1889
Creator:
Todd, James Polk & Welch, John Steel
System:
The Portal to Texas History
Index and Trial-Balance.
Patent for improvement in indexes and trial-balances by using removable spring-strips to hold all the papers together in one place and can be easily remove when needed. Illustration is included.
Date:
April 2, 1901
Creator:
Templeton, Allison
System:
The Portal to Texas History
Railway Switch Lock.
Patent for a new and improved railway-switch lock. This design "consists in a novel construction and arrangement of parts whereby an independent key is used to unlock the latch or bolt of the bolt-case" (lines 14-17).
Date:
August 2, 1881
Creator:
Angus, Alexander & Phillips, George
System:
The Portal to Texas History
Fertilizer Distributer
Patent for a fertilizer distributer. Illustration included.
Date:
June 2, 1908
Creator:
Murry, Henry A. & Evans, James W.
System:
The Portal to Texas History
Planter Attachment.
Patent for a seed planter attachment with an easily adjustable shovel.
Date:
March 2, 1920
Creator:
Sanders, Walter F.
System:
The Portal to Texas History