Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Pawl actuated
Patent
1975-06-19
1977-01-04
Spar, Robert J.
Implements or apparatus for applying pushing or pulling force
Step-by-step traveling bar
Pawl actuated
188184, 254190R, B66D 504
Patent
active
040008819
ABSTRACT:
Apparatus which may be preliminarily attached to the outside elevated place of a hotel, department store or any other building or structure, whereby in case of an emergency such as a fire or earthquake a person suitably attaches his or her body to a rope and descends to escape to a safe place. A novel feature of the apparatus is that in the housing of the apparatus containing a braking mechanism, a rotational motion transmission mechanism and a rope-carrying grooved pulley, the braking mechanism includes a brake disk having a special shape and a plurality of brake shoes so that a positive braking action is ensured when the brake disk is rotated in either the forward direction or the reverse direction, that a partition plate is mounted to divide the housing into two chambers, one containing the braking mechanism and the other containing the rotational motion transmission mechanism, so as to prevent any dust from entering into the former chamber from the latter, and that means for removing the loop of a rope is provided in the chamber containing the grooved pulley.
REFERENCES:
patent: 139484 (1973-06-01), Talpey
patent: 447501 (1891-03-01), Wilson
patent: 667526 (1901-02-01), Hugh
patent: 924695 (1909-06-01), Sheeley
patent: 1541590 (1925-06-01), Ryba
patent: 2382228 (1945-08-01), Howell
Matsumoto Kiko Co., Ltd.
Spar Robert J.
Underwood Donald W.
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