B - Operations – Transporting – 66 – D
Patent
B - Operations, Transporting
66
D
B66D 1/52 (2006.01) B66D 1/42 (2006.01)
Patent
CA 2708275
A rigging, operable to raise and lower the platform, passes through a restraint device comprising a tension holder. The tension bolder comprises a first body having a substantially planar face surface and a rear portion having a divot disposed therein. A second body, substantially similar to the first body; and having a substantially planar face surface; is disposed in a substantially facing arrangement with the first body to permit a line to pass between the substantially planar face surfaces. A lever is disposed in the divot of the first body and is operable to draw together the substantially planar face of she first body and the substantially planar face of the second body whereby friction can be selectively applied to the line when the line is disposed between the substantially planar first surface and said substantially planar second surface.
La présente invention concerne un montage d'appareils de levage, servant à élever et abaisser la plate-forme, traversant un dispositif d'arrimage comportant un dispositif de maintien en tension. Le dispositif de maintien en tension comporte un premier corps présentant une surface sensiblement plane et une partie arrière contenant un pivot. Un second corps sensiblement identique au premier corps et présentant une surface sensiblement plane est disposé dans un agencement sensiblement en regard du premier corps pour permettre le passage d'un brin entre les surfaces sensiblement planes. Un levier est disposé dans le pivot du premier corps et sert à rapprocher la surface sensiblement plane du premier corps et la surface sensiblement plane du second corps permettant une application sélective de frottement au brin lorsque le brin est disposé entre la première surface sensiblement plane et ladite seconde surface sensiblement plane.
Safeworks Llc
Smart & Biggar
LandOfFree
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