A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
227/10
A62B 1/20 (2006.01) A62B 1/14 (2006.01)
Patent
CA 1174651
ABSTRACT OF THE DISCLOSURE The rope sling device is formed by a base plate, a stationary friction cylinder, an eccentrically pivoting auxiliary friction device, and another braking surface. If the person to be lowered is suspended on the base plate, the rope runs between the auxiliary friction device and the other braking surface, it is also diverted at the auxiliary friction device by ca. 180°, it runs around the stationary friction cylinder with 2-1/2 windings, and leaves the rope sling device upward. In lowering, the person to be lowered is slowed down because of the fact that a frictional force occurs at the stationary friction cylinder. A frictional force is also formed when the rope runs over the auxiliary fric- tion device. If the lever 64 is left alone, then the auxiliary friction device connected to it is pivoted by the frictional force of the rope sliding over it so that is presses the rope against the other braking surface, until the rope comes to a stop because of the automatic clamping. The person to be lowered, however, can turn the lever, which is connected to the auxiliary friction device through the gear so that it unlocks or loosens the automatic clamping and no braking occurs on the brake surface. The stop is then released and the rope sling device moves down- ward on the rope.
403540
Brda Walter
Swabey Ogilvy Renault
LandOfFree
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