Prison cell locking and unlocking device

An assembled cell door locking and unlocking device installable in a prison cell system having a plurality of cells arranged in at least one row,

• wherein each of said cells has a cell frame, door hanging means mounted to the frame for mounting a cell door for movement with respect to the frame between an open position and a closed position,
• wherein the cell door has locking means at least partially carried by and movable with the door which, when the door is mounted on the frame, cooperates with a movable locking member of a locking device supported on and secured to the frame to lock the door against motion with respect to the frame when the locking means is engaged by the locking member, and to release the door for movement with respect to the frame when the locking means is disengaged by the locking member, and
• wherein the system has a central control location and a longitudinally movable master control bar assembly operable from the control location and extending horizontally along each cell of the row for simultaneously controlling the operation of the cell door locking and unlocking devices at each of the cells of the row,
• said device comprising:
• a mounting support for removably supporting said assembled device on the frame;
• means on said support for aligning said support at a predetermined position and orientation on the frame;
• means on said support for securing said support to the cell frame when aligned thereon;
• the locking member mounted to said support and movable thereon between a door locking position and a door unlocking position, said locking member being aligned, when said support is aligned and supported on the frame, to engage the locking means of the cell door when said member is in its locking position and the door is in its closed position to lock the door in its closed position, and to disengage the locking means when said locking member is in its unlocking position to unlock the door;
• key responsive lock operating means carried by said support and accessible from adjacent said support for selectively moving said locking member to its unlocking position;
• electrically actuatable lock operating means carried by said support and electrically connectable to the control location so as to be, when enabled, remotely operable from said control location to selectively move said locking member to its unlocking position in response to a signal from the control location;
• a horizontal master bar section slidably mounted on said support and selectively movable to any one of a plurality of bar positions, said bar positions including a door release position, and at least one lock operating position,
• release means partially carried by said master bar section and partially carried by said locking member to move said locking member to its unlocking position when said section is in its release position, and to permit movement of said locking member to its locking position, and from its locking position to its unlocking position by at least one of said lock operating means when said section is in its lock operating position;
• and,
• a horizontal master bar link rigidly connectable between said master bar section and a master bar section of a cell door locking and unlocking device of an adjacent cell in the row for rigidly connecting said master bar section into the master control bar assembly.