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Locking and Operating System for Jail-Doors.

Description: Patent for a new way to operate and lock jail doors "whereby each and every door in the system can be locked, unlocked and operated altogether, or any one, two or more doors can be locked, unlocked and operated without disturbing the other doors of the system" (lines 11-16), including illustrations.
Date: June 11, 1918
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lattice.

Description: Patent for a simple, strong, and economic lattice that is meant for use in jail cells. It allows air and light into the cell, and they are formed with "alternately opposite depressions and elevations for the reception of the bars running at right angles thereto" (lines 12-24). It should have alternating bars of steel and iron.
Date: February 5, 1895
Creator: Hull, William S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hammock

Description: Patent for a hammock for jails and ships. Illustrations included.
Date: January 3, 1911
Creator: Palm, Jay Dee & Palm, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Forge Locked Grating.

Description: Patent for a forge locked grating for use in jails, which does not collect dirt and is very rigid.
Date: November 23, 1909
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Portable Convict-Cage.

Description: Patent for a portable convict cage for housing prisoners while out in work gangs, which is on wheels, is difficult to attack or leave, and provides numerous cots inside.
Date: May 25, 1909
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Door Operating Means

Description: Patent for a mechanism to operate jail doors. The mechanism is "operated with a single movement of the hand to open and close a plurality of doors simultaneously" (14-19). Illustrations included.
Date: June 25, 1912
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Jail

Description: Patent for community style jails, eliminating single-cell jail housing.
Date: June 24, 1913
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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