Description:
Patent for "car-brakes that work automatically and without manual intervention as soon as the locomotive is stopped." (Lines 12-14) Includes instructions and illustrations.
Date:
June 1, 1875
Creator:
Kirtley, Fielding L.
Partner:
UNT Libraries Government Documents Department
Description:
Patent for "a means for the automatic application of brakes to the cars of a railway-train; and it consists in a loosely-moving draw-bar attached to the car by means of bolts passing through a central longitudinal slot, and having its sides wrought into two rack-bars, which mesh with pinions upon two windlass-shafts; which arrangement, when the locomotive is "slowed," causes the impact of the cars to drive up the draw-bars and wind up cords upon the windlass-shafts, which communicated with and …
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Date:
June 1, 1875
Creator:
Kirtley, Fielding L.
Partner:
UNT Libraries Government Documents Department
Description:
Patent for a new and improved cable twister. This design consists in "[t]he combination, with the casting having grooves and openings therein, of the semicircular disks . . . having grooves therein and openings extending through the same, the bolt for binding the several parts together, and the arms extending out from the disks" (lines 1-7).
Date:
June 11, 1889
Creator:
Runyon, Edwin Elijah
Partner:
UNT Libraries Government Documents Department
Description:
Patent for improvements in projectiles for use in smooth-bore guns of any caliber, the same being so grooved or rifled as to insure rapid rotation and great accuracy and range in flight. (Lines 8-11.) Illustration is included.
Date:
June 25, 1901
Creator:
Croom, Alvis F.
Partner:
UNT Libraries Government Documents Department
Description:
Patent for improvements in door safety locks. Adding this simple and easy to manufacture lock allows a door to be locked from the inside, making the door inaccessible to anyone on the outside.
Date:
June 21, 1921
Creator:
Kless, Herman L.
Partner:
UNT Libraries Government Documents Department
Description:
Patent for signs, bulletin boards and other display apparatus; the purpose of this device is that display elements may be reversed from time to time to change announcement displayed.
Date:
June 21, 1921
Creator:
Nowlin, Aubrey C.
Partner:
UNT Libraries Government Documents Department
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