UNT Libraries Government Documents Department - 5 Matching Results

Search Results

Hoisting-Machine: Patent for a new Hoisting-Machine. The Hoisting Machine has improved arrangement of parts that control the device's braking drum. Improving the Hoisting Machine construction is useful for reducing wear on the machine.
Pipe-Tongs.: Patent for pipe tongs used for rotary well boring machinery. The tongs are designed to be carried with and used by rotary machines.
Removable Mouthpiece for Smoking-Pipes: Patent for a removable mouthpiece for smoking pipes that is made of rubber and prevents saliva from going into the pipe.
Reversible Automobile-Lamp: Patent for a reversible automobile taillight that can be changed to four different colors to indicate different things.
Well-Boring Apparatus: Patent for a well-boring apparatus that has a rotary drill pipe.