UNT Libraries Government Documents Department - 5 Matching Results

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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
Item Type: Refine your search to only Patent

Gate

Description: Patent for "enabling a gate to be operated at a distance from either side of it by a person on horseback or in a vehicle" (lines 14-16), with details and illustrations.
Date: July 25, 1902
Creator: Millican, John M.
Item Type: Refine your search to only Patent

Self-Dumping Cage for Hoisting Coal, & c., from Mines.

Description: Patent for improvements in self-dumping cage for hoisting coal or other minerals by first provide a simple and easily-controlled dumping mechanism which can be set at bottom of shaft; second, to secure a positive action of the dumping mechanism and reduce the shock and strain commonly incident to the operation of self-dumping cages; third, to provide a firmer and more easily operated dog for holding car on cage-platform. (Lines 15-22) Illustration is included.
Date: June 25, 1901
Creator: Burdic, Malvern W.
Item Type: Refine your search to only Patent
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