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Apparatus for Projecting Motion-Pictures.
Patent for an improvement to motion picture projectors that lowers the operating speed, thus reducing the amount of film needed for movies, and eliminates flickers in the projection. This patent includes instructions and illustrations.
Date:
November 27, 1917
Creator:
Craig, Richard M.
System:
The Portal to Texas History
Composition for Sealing Tire-Punctures and the Like.
Patent for sealing tire punctures consisting of the extract obtained from boiling guayule and candelilla plants in water to which is added asbestos and fullers' earth.
Date:
November 27, 1917
Creator:
Garza, Ricardo
System:
The Portal to Texas History
Blade-Holder
Patent for a new and useful improvements to a blade holder. It can hold any form of razor blades can be securely held and easily released. The holder allows blades to be inserted safely and then hold blades firmly into place.
Date:
September 27, 1921
Creator:
Lightfoot, Roy L.
System:
The Portal to Texas History
Highway for Grade-Crossings.
Patent for highway-railroad grade crossing designed to slow the flow of traffic as it crosses an intersecting railway.
Date:
September 27, 1921
Creator:
Carter, Kenneth Wilson
System:
The Portal to Texas History
Phonograph-Needle.
Patent for a phonograph needle "which is simple in construction, inexpensive to manufacture, and may be used in connection with phonograph records of different types" (lines 18-21). The needle has a flexible shank (in multiple forms) for improved audio quality, and it accommodates various tip styles for use with many brands of phonograph records.
Date:
September 27, 1921
Creator:
Fletcher, Theodore
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
Process for Treating Cotton-Seed
Patent for "new and useful Improvements in Processes for Treating Cotton-Seed"(lines 6-8), which expresses oil from cotton and neutralizes it with "alkali... and precipitating solid matter"(lines 26-27).
Date:
May 27, 1919
Creator:
Fee, Horatio A. & Aeveaenes, Garciea H.
System:
The Portal to Texas History
Paper-Cutting Machine.
Patent for an improved paper cutting machine that can achieve more precise cuts for labels, paper boxes, and cartons, and also has a clamping mechanism to hold the paper in place.
Date:
July 27, 1920
Creator:
Downie, James H.
System:
The Portal to Texas History
Method of Condensing a Vapor in a Natural Gas
Patent for Method of Condensing a Vapor in a Natural Gas. The purpose is to remove condensation and other wet gases from oil wells.
Date:
May 27, 1918
Creator:
Duffy, James T.
System:
The Portal to Texas History
Hose-Washer.
Patent for improvement in efficiency of hose washers. Patent helps to prevent accidental detachment of a hose via the use of a "resilient wire" designed to strengthen the connection. Citation: Calvert, Walter Riley. Hose-Washer., patent, April 27, 1915; [Washington D.C.]. University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.
Date:
April 27, 1915
Creator:
Calvert, Walter Riley
System:
The Portal to Texas History
Ice-Cream-Freezer Holder.
Patent for a new ice cream freezer holder to be placed at the bottom of a freezer during the freezing process, including illustrations.
Date:
January 27, 1914
Creator:
Toepperwein, Ferdinand L.
System:
The Portal to Texas History
Lantern.
Patent for an "improved lantern for switchmen and other railroad men for use in signaling and the like, and which is susceptible of being used for prolonged signals without extinguishing the flame and which is not liable to be accidentally blown out by a strong wind or current of air either" (lines 10-16).
Date:
May 27, 1913
Creator:
Moore, Thomas L.
System:
The Portal to Texas History
Combined Wire and Wireless Telephone System.
Patent for a combined wire and wireless telephone system that allows 2 people who are calling through two different central operating stations to talk to each other even though there is no wire directly between the 2 parties, through the use of a wireless system.
Date:
June 27, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History
Box for Carrying Wireless Signalling Apparatus
Patent for a box for carrying wireless signaling equipment that fits the equipment well and has a handle or strap for carrying the box with.
Date:
June 27, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History
Combined Wire and Wireless Telegraph System.
Patent for a combined wire and wireless telephone system that has a wireless system in between two wired systems.
Date:
June 27, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History
Bottle
Patent for a bottle. Illustration included.
Date:
December 27, 1904
Creator:
Marion, John B.
System:
The Portal to Texas History
Blind-Slat Adjustor
Patent for a blind slat adjuster which can hold the blinds in a variety of different positions.
Date:
July 27, 1909
Creator:
Hermann, Ernst W. F.
System:
The Portal to Texas History
Wireless-Telephone System.
Patent for a wireless telephone system that does not require the user to flip a switch in between receiving and sending a message.
Date:
June 27, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History
Window-Screen
Patent for "a new and improved window-screen which is simple and durable in construction, very effective in operation, and arranged to permit of readily placing the screen in position on the window or removing it therefrom and without requiring special runs or guideways and to allow of using the screen either inside or outside of the window, as desired" (lines 8-16)
Date:
November 27, 1900
Creator:
Holden, Elbridge G.
System:
The Portal to Texas History
Locking System for Jail-Doors
Patent for locking system for jail doors where locks of a series of cell doors can be operated simultaneously.
Date:
January 27, 1903
Creator:
Youngblood, David Franklin
System:
The Portal to Texas History
Inhaler
Patent for an inhaler. Illustrations included.
Date:
August 27, 1912
Creator:
White, George W.
System:
The Portal to Texas History
Spark-Gap Muffler.
Patent for a spark gap muffler that muffles the sound of a spark jumping a gap between wires in wireless telephone and telegraph systems.
Date:
June 27, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History
Sprinkling-Stopper.
Patent for a new and useful sprinkling stopper, including instructions and illustrations.
Date:
March 27, 1900
Creator:
Cook, Frederick W., Jr.
System:
The Portal to Texas History
Holder for Ice-Cream Freezers.
Patent for a holder for ice cream freezers that holds them firmly to a table.
Date:
June 27, 1911
Creator:
Praeger, Ewald
System:
The Portal to Texas History