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US 4,641,458 AGranted
Jail door operating and locking mechanism
OwnerWalter R. Pilcher, James W. Pilcherinventors
Life of this patent
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Abstract
A jail door operating and locking mechanism is provided, comprising a sliding jail door mechanism, lockable by a vertical lock bar, and having a mechanism permitting selective manual operation of cell doors, as well as selective power operation of cell doors, from a remote location. A spring loaded index assembly is provided, enabling indexing of selected doors as well as release of cell door control to prison inmates and retrieval of control when desired, all from a remote location. A carriage lock regulator assembly is also provided, comprising a regulator gear rack, regulator gear, regulator lock bar and regulator lock plate, in combination, which allow for overtravel in door operation.
Claims16
A jail door operating and locking mechanism, comprising:
- a. at least one fixed frame across the front of a plurality of aligned jail cells and having a plurality of passageways therethrough;
- b. a plurality of sliding cell doors, each said door slidingly movable across one said passageway;
- c. a plurality of door carriage weldment means, each fixedly connected to each said cell door, for imparting sliding movement to said cell doors between open and closed positions;
- d. a plurality of vertical lock bars, slidingly positioned in said frame such that at least one said lock bar is provided for each said door, each said lock bar having a locked position whereby said cell door is locked with relation to said frame, and an unlocked position, whereby said cell door is free to travel between said open and closed positions;
- e. a plurality of means, each positioned over each said cell door, for transferring motive power to each said door carriage weldment means;
- f. a plurality of lock bar positioner means, each fixedly attached to said means for transferring motive power and operatively connected to at least one said vertical lock bar, for moving said lock bar between said locked and unlocked positions;
- g. a plurality of power means, for propelling said means for transferring motive power, each said power means operatively engageable with one said means for transferring motive power and operable from a remote location;
- h. a continuous bar means, slidingly positioned above said doors, for manually operating said lock bar positioner means and said means for transferring motive power;
- and
- i. a plurality of means for activating manual door operation, each operable from a remote location and selectively and linkingly engageable with said continuous bar means and one said means for transferring motive power such that movement of said continuous bar means will operate a desired number of said means for transferring motive power.
7 more elements
A jail door operating and locking mechanism, comprising:
- a. a fixed frame across the front of a jail cell and having a passageway therethrough;
- b. a cell door, slidingly movable across said passageway;
- c. a door carriage weldment means, fixedly connected to said cell door, for imparting sliding movement to said cell door between open and closed positions;
- d. a lock bar, slidingly positioned in said frame such that said lock bar has a locked position whereby said cell door is locked with relation to said frame, and an unlocked position, whereby said cell door is free to travel between said open and closed positions;
- e. a means, positioned over each said cell door, for transferring motive power to said door carriage weldment means;
- f. a lock bar positioner means, fixedly attached to said means for transferring motive power and operatively connected to said lock bar, for moving said lock bar between said locked and unlocked positions;
- g. a carriage lock regulator assembly, comprising:
- i. a regulator gear rack, fixedly attached to said means for transferring motive power;
- ii. a regulator gear, meshingly attached to said regulator gear rack and rotatably attached to said door carriage weldment means;
- iii. a regulator lock bar fixedly attached to said regulator gear;
- and
- iv. a regulator lock plate, fixedly attached to a fixed surface below said regulator gear and having an upper edge and ends, said regulator lock plate being positioned such that, during door travel, said upper edge of said lock plate is positioned just under or just abutting said regulator lock bar, said regulator lock plate being positioned substantially horizontally during door travel, and wherein said regulator lock plate is of such a length that, when said door reaches said open or closed positions, said regulator lock bar will rotate around one said end of said lock plate allowing rotation of said regulator gear.
9 more elements
A jail door operating and locking mechanism, comprising:
- a. at least one fixed frame across the front of a plurality of aligned jail cells and having a plurality of passageways therethrough;
- b. a plurality of sliding cell doors, each said door sligingly moveable across one said passageway;
- a plurality of door carriage weldment means, each fixedly connected to each said cell door, for imparting sliding movement to said cell doors between open and closed positions;
- d. a plurality of vertical lock bars, slidingly positioned in said frame such that at least one said lock bar is provided for each said door, each said lock bar having a locked position whereby said cell door is locked with relation to said frame, and an unlocked position, whereby said cell door is free to travel between said open and closed positions;
- e. a plurality of means, each positioned over each said cell door, for transferring motive power to each said door carriage weldment means;
- f. a plurality of lock bar positioner means, each fixedly attached to said means for transferring motive power and slidingly connected to at least one said vertical lock bar, for moving said lock bar between said locked and unlocked positions;
- g. a continuous bar means, slidingly positioned above said doors, for manually operating said lock bar positioner means and said means for transferring motive power;
- and
- h. a plurality of index assemblies, each operable from a remote location and selectively and linkingly engageable with said continuous bar means and one said means for transferring motive power such that movement of said continuous bar means will operate a desired number of said means for transferring motive power, each said index assembly further comprising:
- i. a fixed stop, fixedly attached to a fixed surface above said door;
- ii. a rod, having first and second ends and slidingly attached between said ends to said fixed stop and having said first end attached to an index connector;
- iii. a first spring means, connected to said rod, for maintaining tension on said index connector;
- iv. a fixed movable stop, slidingly positioned on said rod between said first spring and said second end of said rod;
- v. a second spring, compressibly mounted on said rod between said fixed movable stop and said second end of said rod;
- vi. an end stop, mounted on said second end of said rod so as to retain said second spring on said rod;
- and
- vii. a means, fixedly connected to said fixed movable stop, for linking said means for transferring motive power to said continuous bar means.
14 more elements
A jail door operating and locking mechanism, comprising:
- a. at least one fixed frame across the front of a plurality of aligned jail cells and having a plurality of passageways therethrough;
- b. a plurality of sliding cell doors, each said door slidingly movable across one said passageway;
- c. a plurality of door carriage weldment means, fixedly connected to each said cell door, for imparting sliding movement to said cell doors between open and closed positions;
- d. a plurality of vertical lock bars, slidingly positioned in said frame such that at least one said lock bar is provided for each said door, each said lock bar having a locked position whereby said cell door is locked with relation to said frame, and an unlocked position, whereby said cell door is free to travel between said open and closed positions;
- e. a plurality of means, each positioned over each said cell door, for transferring motive power to each said door carriage weldment means;
- f. a plurality of lock bar positioner means, each fixedly attached to said means for transferring motive power and slidingly connected to at least one said vertical lock bar, for moving said lock bar between said locked and unlocked positions;
- g. a plurality of power means, for propelling said means for transferring motive power, each said power means operatively engageable with one said means for transferring motive power and operable from a remote location;
- h. a continuous bar means, slidingly positioned above said doors, for manually operating said lock bar positioner means and said means for transferring motive power and for disengaging said power means prior to manual operation and re-engaging said power means following manual operation;
- and
- i. a stop bar assembly, attached to a fixed surface and movable to a position so as to prevent re-engagement of said power means while said continuous bar means is manually operating said cell doors.
7 more elements
A carriage lock regulator assembly for a jail door operating and locking mechanism, comprising:
- i. a regulator gear rack, fixedly attached to a means for transferring motive power;
- ii. a regulator gear, meshingly attached to said regulator gear rack and rotatably attached to a door carriage weldment means;
- iii. a regulator lock bar fixedly attached to said regulator gear;
- and
- iv. a regulator lock plate, fixedly attached to a fixed surface below said regulator gear and having an upper edge and ends, said regulator lock plate being positioned such that, during door travel, said upper edge of said lock plate is positioned just under or just abutting said regulator lock bar, said regulator lock plate being positioned substantially horizontally during door travel, and wherein said regulator lock plate is of such a length that, when said door reaches open or closed positions, said regulator lock bar will rotate around one said end of said lock plate.
2 more elements
An index assembly for a jail door operating and locking mechanism, comprising:
- i. a fixed stop, fixedly attached to a fixed surface above a sliding cell door;
- ii. a rod, having first and second ends and slidingly attached between said ends to said fixed stop and having said first end attached to an index connector;
- iii. a first spring means, connected to said rod, for maintaining tension on said index connector;
- iv. a fixed movable stop, slidingly positioned on said rod between said first spring and said second end of said rod;
- v. a second spring, compressibly mounted on said rod between said fixed movable stop and said second end of said rod;
- vi. an end stop, mounted on said second end of said rod so as to retain said second spring;
- and
- vii. a means, fixedly connected to said fixed movable stop, for linking a means for transferring motive power to a continuous bar means.
5 more elements
Dependencies are inferred from the claim text.