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4 Matching Results
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Charge Firing Pin
Patent for a new improvement in Charge - Firing Pens by John N. Swanson. Designed for bombs and torpedoes to create a simple firing pen mechanism that is simple, yet prevents accidental detonation of munitions
Date:
January 14, 1918
Creator:
Swanson, John N.
System:
The Portal to Texas History
Well Drilling Mechanism
Patent for a well drilling mechanism. This invention addresses the time consuming labor of screwing together sections of drilling pipe. This invention "contemplates an apparatus adapted to be attached to the frame of the rotary and operated by the driving mechanism of the rotary...screwing and unscrewing accomplished by mechanical means without manual means" (lines 38-44). Illustration included.
Date:
January 14, 1913
Creator:
Hall, Samuel N.
System:
The Portal to Texas History
Improvement in Fluting-Machines.
Patent for an improvement in gage-fluting machines, including an illustration. "It relates to a machine for fluting or crimping articles of ladies' apparel" (lines 6-7).
Date:
January 14, 1873
Creator:
Saunders, David R.
System:
The Portal to Texas History
Street or Station Indicator.
Patent for "indicators for displaying to passengers in a car the names of approaching streets or stations" (lines 9-11) including mechanical specifications and illustrations.
Date:
January 14, 1908
Creator:
Higgins, Polk Maderson & Lee Dolphia Harmes
System:
The Portal to Texas History