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Lining for Tin Cans.
Patent for a new and improved method of canning seafood with tin cans. This design calls for perforated paper to line the cans, which prevents the discoloration of the seafood inside.
Date:
December 28, 1880
Creator:
Bartlett, Frederick W.
System:
The Portal to Texas History
Letter Copying Roller
Patent for a new and useful letter copying roller. This invention is to "provide a simple device for facilitating the copying of letters without the use of a press, blotters, pads, and similar appliances usually employed for this purpose (line 9 - 13).
Date:
December 28, 1897
Creator:
Roux, Harry L.
System:
The Portal to Texas History
Railway - Switch.
Patent for a new and improvement in automatic safety railway-switches to "enable the motorman or conductor to conveniently and accurately insure the proper setting of the switch without leaving this position" (line 16 - 19).
Date:
December 28, 1897
Creator:
Girardeau, St. Julien & Murray, Richard James
System:
The Portal to Texas History
Improvement in Locomotive Earth-Excavators.
Patent for "an earth-excavator, principally for use in making the road-beds for railroads, which shall not only do its work continuously, but which shall be equally efficient in throwing up an embankment or in making a deep cut." (Lines 8-12) Includes instructions and illustrations.
Date:
December 28, 1875
Creator:
Hawley, Abel
System:
The Portal to Texas History
Self Serving Dining Table
Patent for a self serving dining table. Illustration included.
Date:
December 28, 1909
Creator:
Williams, Alonzo S.
System:
The Portal to Texas History
Fluid Pressure Regulator
Patent for a new and useful gas pressure regulator. This invention "relates to gas-pressure regulators especially adapted for use with gas stored under high pressure in a cylinder or similar portable storage vessel" (line 8 - 11).
Date:
December 28, 1897
Creator:
Clark, George Greenleaf
System:
The Portal to Texas History
Door Check.
Patent for a new and improved door-check. This design "consists in a slotted plate provided at one end with a buffer for arresting the door, and having in the walls of the longitudinal slot series of diagonal slots, in combination with a counterweighted latch provided with trunnions received in the diagonal slots" (lines 21-27).
Date:
December 28, 1886
Creator:
Hinkle, William A. & Jeffery, Franklin C.
System:
The Portal to Texas History