A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
227/20
A47L 3/04 (2006.01) A62B 35/00 (2006.01) E06C 7/18 (2006.01) F16G 11/00 (2006.01) F16G 11/10 (2006.01)
Patent
CA 1037000
SAFETY DEVICE FOR LADDER CLIMBERS ABSTRACT OF THE DISCLOSURE A safety clamp slidably mounted on a vertical safety carrier such as a cable or rod, in proximity to a ladder is attached to a workman's belt by a pivotal actuating arm which shifts a wedge plate into clamping engagement with the safety carrier immediately under free-fall conditions encountered if the workman falls from the ladder. The wedge plate is shiftably mounted in a clamping bracket in such a way that its upward closing movement against a safety carrier is assisted by the frictional force of the stationary safety carrier on an elongated clamping side of the wedge plate. Instataneous actuation of the wedge plate into clamping engagement with the safety carrier in response to the slightest pivotal movement of the actuating arm towards its closing position is provided by cam action between the wedge plate and a cam member on the clamping bracket.
224086
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