UNT Libraries Government Documents Department - 18,569 Matching Results

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Lock

Description: Patent for a lock. This lock is designed for a coin fed lock that releases the key for the customer. Illustration included.
Date: June 2, 1908
Creator: Johnson, Randall

Valve.

Description: Patent for a new and useful valve for "controlling the flow of steam, compressed air, water, or other fluid" (line 12 - 14).
Date: December 27, 1898
Creator: Mitchell, Charles Bradley

Vehicle Wheel

Description: Patent for a vehicle wheel. This invention is designed to keep dust and grit out of the axle point and nib. It has a wooden core sheathed in metal. Illustration included.
Date: April 19, 1904
Creator: Polk, James A.

Lock.

Description: Patent for an improvement to combination-locks for doors, safe, and bureaus, "with readily-operated means for holding the combination-disks inactive and in position to permit a locking-bolt to be freely operated by a key when so desired, which means will also permit the combination to be set so that the bolt cannot be moved by a key until the disks of the combination have been brought to proper position." (lines 11-18)
Date: November 25, 1902
Creator: Dalton, Lewis & Cross, Dick

Invalid's Chair.

Description: Patent for a new and improved invalid's chair. This design "relates to an improvement in chairs which will adapt them to the use of invalids and children" (line 7-9).
Date: January 18, 1898
Creator: Yznaga, Juana G.

Vehicle-Axle

Description: Patent for improvements in axles "particularly to axles for buggies and other light vehicles." (Lines 12-13)
Date: February 19, 1907
Creator: Raines, Stephen H. & Schuessler, Amile O.

Vehicle Wheel

Description: Patent for the improvement of the vehicle wheel utilizing coiled springs to in such a way that it reduces shock and force. The goal is to eliminate the need for pneumatic tires. Detailed description and illustrations included.
Date: unknown
Creator: Wright, James G. & Wylie, Alfred R.
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