Shrouded track slide bolt

Details Shrouded track slide bolt Shrouded track slide bolt

1984-02-22

1986-10-14

Smith, Gary L.

Locks

Special application

For closures

70371, 70416, 70417, 292150, 292DIG51, E05B 6506

Patent

active

046164936

ABSTRACT:
A shrouded track slide bolt which is very difficult to breach including an anti-saw spindle inserted into the bolt where it bridges the gap between the door and the door jamb. If a saw is inserted into this gap the saw will stop cutting when it hits the anti-saw spindle which rotates freely. The mechanism consists of a fixed block and a sliding block with an attached dead bolt. If a saw is insertd into the gap between the blocks, a bolt collar will rotate making sawing impossible. At all other points the bolt is surrounded by massive case hardened steel blocks. A key system is provided so that a key is necessary to activate the bolt and the key may only be withdrawn if the bolt is fixed in either the fully extended or fully withdrawn position. A door jamb reinforcing insert is provided to strengthen the door jamb.

REFERENCES:
patent: 1219488 (1917-03-01), Rompf
patent: 1490578 (1924-04-01), Bachmann
patent: 1982813 (1934-12-01), Jacobi
patent: 2103987 (1937-12-01), Kistner
patent: 2117715 (1938-05-01), Godfried
patent: 3190683 (1965-06-01), Schlage
patent: 3599453 (1971-08-01), Bauernfeind
patent: 3740980 (1973-06-01), Schimizzi et al.
patent: 3751953 (1973-08-01), Newman
patent: 3752520 (1973-08-01), Sprick et al.
patent: 4095828 (1978-06-01), East
patent: 4229956 (1980-10-01), Thorburn
patent: 4234220 (1980-11-01), Finch et al.
patent: 4307904 (1981-12-01), Daus
patent: 4362035 (1982-12-01), Vitale
patent: 4491354 (1985-01-01), Williams

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