Sliding door

Details Sliding door Sliding door

1978-04-10

1979-10-16

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Closure-mounted drive

49360, 49449, 109 73, 292112, 292199, E05F 1100, E05D 1304

Patent

active

041708482

ABSTRACT:
A sliding door is provided which is suitable for use as a heavy door for vaults in banks. The door is provided at its bottom with driving wheels adapted to be rotated manually by means of a handle, through a suitable power transmitting means, thereby to move the door along a rail. The power transmitting means may incorporate a suitable reduction means so that the door may be moved with a reduced force and, accordingly, at a lower speed. Means are provided for locking the door in the closed state.

REFERENCES:
patent: 1083438 (1914-01-01), Dohse
patent: 1090305 (1914-03-01), Hoffman
patent: 1210103 (1916-12-01), Ritter
patent: 1646181 (1927-10-01), Babekuhl
patent: 1816134 (1931-07-01), Wood
patent: 2488063 (1949-11-01), Massie
patent: 2714472 (1955-08-01), Richardson

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