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Railway Switch.
Patent for a railway switch to be operated by foot and without structural change to existing construction.
Date:
February 28, 1922
Creator:
Arteaga, Ignacio
System:
The Portal to Texas History
Can Opener
Patent for a can opener which cuts cleanly and rapidly around the outside wall of the can, so as to avoid jagged edges.
Date:
February 14, 1922
Creator:
Minor, Robert B.
System:
The Portal to Texas History
Safety Apparatus.
Patent for vehicle to safely have the right of way when reaching a crossing first.
Date:
February 14, 1922
Creator:
Duran, Arturo
System:
The Portal to Texas History
Wrench
Patent for a wrench designed for right and left-handed users, makes for simpler use of tool by having fewer components than other more standards wrenches.
Date:
February 9, 1915
Creator:
Wulff, William F. & Wulff, M.
System:
The Portal to Texas History
Valve-Grinding Device
Patent for a device that can simultaneously grind "several valves of a multi-cylinder engine or motor" (lines 11-12). This device allows the "ready interchangeability, repair and adjustment of the working parts" (lines 16-17).
Date:
February 4, 1919
Creator:
Lohec, Joseph C.
System:
The Portal to Texas History
Internal Combustion Engine.
Patent for an internal combustion engine consisting of a valve and cynlinder. The engine is made to avoid dead air space commonly present in valve casings.
Date:
February 15, 1921
Creator:
Blumberg, Hamilton G.
System:
The Portal to Texas History
Lock.
Patent for "locking the control pedals of a motor vehicle from movement in either direction, the said lock being arranged between the pedals and arranged to simultaneously engage and lock both" (lines 9-14).
Date:
February 27, 1919
Creator:
Cameron, Robert G.
System:
The Portal to Texas History
Valve Construction
Patent for improved valve construction which permits unobstructed passage from valves to intake and exhaust pipe in motor vehicles.
Date:
February 5, 1918
Creator:
Smith, Thomas Noah
System:
The Portal to Texas History
Journal-Lubricator.
Patent for a railway journal lubricator with a reservoir and lubricating rollers for supplying lubricant to the railway journal.
Date:
February 4, 1919
Creator:
Urbieta, Jose M.
System:
The Portal to Texas History
Locomotive-Pilot Coupling
Patent for new and useful improvements in locomotive-pilot couplings (lines 5-6), including illustrations and instructions.
Date:
February 8, 1900
Creator:
Butcher, George W.
System:
The Portal to Texas History
Wrench.
Patent for a new ratchet-wrench with "improved construction and combination of parts" (lines 26-27), including illustrations.
Date:
February 2, 1886
Creator:
Rettberg, Ernest Frederick & Ellis, Charles Carroll
System:
The Portal to Texas History
Wave-Motor
Patent for a wave motor for vehicles that travel on water. Illustrations included.
Date:
February 4, 1913
Creator:
Stribling, Samuel L.
System:
The Portal to Texas History
Key.
Patent for a key, which can be produced in quantity but without any of them being able to open the same door.
Date:
February 4, 1908
Creator:
Katzenberger, Oscar
System:
The Portal to Texas History
Lock
Patent for a lock. This invention is a design of door lock that uses a key and combination. Illustration included.
Date:
February 12, 1907
Creator:
Katzenberger, Oscar
System:
The Portal to Texas History
Lock.
Patent for a new and useful combination lock designed for safe.
Date:
February 15, 1898
Creator:
Wise, Harry
System:
The Portal to Texas History
Tractor.
Patent for an improvement in tractors that allowed adjustment to the tread or allowed distance between traction elements.
Date:
February 10, 1920
Creator:
Franklin, Floyd P.
System:
The Portal to Texas History
Tool.
Patent for a new and improved tool for "various uses, being especially adapted as a clamp, vise, brace or drill-stock, or wrench" (line 9 -10).
Date:
February 15, 1898
Creator:
Poor, Morrill Hart
System:
The Portal to Texas History
Milk Cooler
Patent for a milk cooler. Illustration included.
Date:
February 8, 1910
Creator:
McNeel, James S.
System:
The Portal to Texas History
Press.
Patent for a new and improved press. This design "consists in compressing-rollers placed in suitable bearings, so as to coincide with an inlet-channel which receives and guides the fibrous substance to be baled into the baling-box of a press after the compressing-rollers have given it a preparatory pressing" (lines 10-16).
Date:
February 9, 1886
Creator:
Holmgreen, Julius H.
System:
The Portal to Texas History
Upholstered Furniture
Patent for "new and useful improvements in upholstered furniture", (lines 5-6), including illustration and instructions.
Date:
February 19, 1900
Creator:
Conrad, J. B.
System:
The Portal to Texas History
Padlock.
Patent for a padlock, which can only be opened with a certain key and prevents the use of many lock-picking devices.
Date:
February 4, 1908
Creator:
Katzenberger, Oscar
System:
The Portal to Texas History
Motor-Cycle Frame.
Patent for a motorcycle frame, which has a spring frame to reduce shocks while riding the motorcycle.
Date:
February 8, 1910
Creator:
Huser, Carl L. W.
System:
The Portal to Texas History
Union-Garment
Patent for union garments with a strip of elastic or semi-elastic woven material at the back of the waist in order to allow the garment to stretch when worn.
Date:
February 15, 1921
Creator:
Hook, Thomas Wesley
System:
The Portal to Texas History
Spring Wheel
Patent for a spring wheel design that will "effectually resist both the vertical and lateral stresses to which the wheel is subjected when in use" (lines 11-13), including illustrations.
Date:
February 24, 1914
Creator:
Mathiesen, Marius
System:
The Portal to Texas History