UNT Libraries Government Documents Department - 31 Matching Results

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Air-Brake, Lighting, and Signaling System for Railway-Trains
Patent for an electrical system which provides air brake, lighting, and signaling mechanisms for trains. Illustrations included.
Air-Lock for Mines and Tunnels
Patent for an air lock to remove water, polluted air, and heat from mines and tunnels and force in fresh air. Illustrations included.
Annuciator
Patent for an annunciator. "This invention is designed for use in connection with a complete traction system" (lines 13-14). The design drives instruments via a train air system so that air pressure is constantly maintained. Illustrations included.
Auto-Door Stop
Patent for a door stop that is cheap to produce and holds doors firmly.
Automatic Multiple Fuse Block
Patent for an automatic multiple fuse block. This invention is "provided a normally inactive shunt circuit through which, when a fuse is blown, the current is diverted to an electro-mechanical means which, when the rush of current causing the fuse to blow" (16-21). Illustration included.
Car-Truck.
Patent for a car truck for use on trains, which can withstand heavy loads and high speeds.
Car-Wheel
Patent for a car wheel made to ease turning on rounding corners and to prevent slipping due to differences in wheel sizes.
Las Cruces Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Electric Track-Brake.
Patent for an electric train brake, which allows trains to not slow down on curves without derailing and allows faster emergency braking.
Electrically Operated Air Brake System
Patent for an electrically operated air brake system.
Fence-Post.
Patent for a fence post, which can be used for wire or picket fences and has a sturdy anchor for the post.
Fiber-Cleaning Machine
Patent for a machine intended to remove the pulp from the fiber of tropical plants. Illustrations included.
Hook.
Patent for a hook that folds up for use in small spaces on garments.
Liquid-Dispensing Apparatus.
Patent for a coin operated drink machine, which dispenses a set amount of liquid into a cup when a coin is inserted.
Liquid Dispensing Apparatus
Patent for liquid dispensing apparatus. Illustrations included.
Means for Converting Reciprocatory Motion into Rotary Motion
Patent for a means for converting reciprocatory motion into rotary motion, or vice-versa. Illustrations included.
Means for Ventilating and Expelling Water from Mines.
Patent for a ventilation and water pumping system for mines, which pumps out water underground, removes foul air and gases, and keeps the mine supplied with fresh air through pressurizing the air in the mine.
Nut-Lock.
Patent for a nut-lock for car wheels, which holds the wheel securely together.
El Paso Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Pianissimo Device.
Patent for a pianissimo device for upright pianos, which "takes up the lost motion when the soft pedal is used by automatic means" (lines 14-16).
Polish-Bottle and a Combined Stopper and Dauber Therefor
Patent for a bottle for shoe polish which can also be used as a stopper and dauber. Illustrations included.
Puzzle.
Patent for a wooden cube puzzle made up of many irregular shaped pieces, which can be manufactured to be hard or easy.
Regulator for Dynamo-Electric Machines.
Patent for an electric dynamo machine regulator for use in traction systems on trains.
Rotary Engine.
Patent for a rotary engine, which can be powered with a variety of different power sources and is more efficient and durable than previous ones.
Safety Device for Steam-Boilers.
Patent for a safety device for steam boilers, which activates an alarm when water levels are too high on the fuse box that gives an earlier warning, does not allow the fuse box to be changed without the chief engineer being alerted, and prevents false alarms.
Speed-Changing Gear.
Patent for an automatic speed changing gear for trains.
Ticket Selling Machine
Patent for a ticket selling machine.
Ticket Vending Machine
Patent for a ticket vending machine. Illustrations included.
Transmission-Gearing.
Patent for a transmission gearing for a traction system for trains, which can be used on all types of curves without ill effects.
Wire Clamp or Grip
Patent for a wire clamp or grip. Illustration included.
Yielding Power-Coupling
Patent for a yielding power coupling to connect power units in cars to form a complete system. Illustrations included.
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