Load lowering apparatus

Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder

Patent

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Details

182235, 182193, 188 655, A62B 114, A62B 116

Patent

active

043998895

ABSTRACT:
A lightweight apparatus for lowering a load at a controlled rate utilizes an elongated load-carrying strand and a slider assembly mounted on the strand to support a load for controlled downward sliding movement along the strand. The slider assembly includes a brake which is manually operable to control movement of the slider from a complete stop to substantially free fall conditions. In a preferred embodiment, the brake is spring-loaded to an intermediate position to permit a load to be lowered at a safe, relatively slow rate without actuation of the brake. When such preferred embodiment is used by a person to lower himself, a brake control lever may be manually displaced from the intermediate position to increase or decrease the rate of descent.

REFERENCES:
patent: 147328 (1874-02-01), De Boucherville
patent: 263100 (1882-08-01), Beebe
patent: 279762 (1883-06-01), Hume
patent: 433481 (1890-08-01), Mansfield
patent: 439263 (1890-10-01), Zein et al.
patent: 487135 (1892-11-01), Stott
patent: 553190 (1896-01-01), Fowler
patent: 594318 (1897-11-01), Beebe
patent: 641809 (1900-01-01), Tillottson
patent: 725206 (1903-04-01), Boisclaire
patent: 784864 (1905-03-01), Landis
patent: 974929 (1910-11-01), Smith
patent: 1264179 (1918-04-01), Harley
patent: 1382341 (1921-06-01), Butterfield
patent: 2272494 (1942-02-01), Winslow
patent: 3217840 (1965-11-01), Holkesvick
patent: 3357520 (1967-12-01), Foote
patent: 4334595 (1982-06-01), Koch

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