G - Physics
01
P
340/148.66
G01P 3/44 (2006.01) B66B 5/04 (2006.01)
Patent
CA 1214841
Abstract Elevator Governor A flywheel or disc rotates around a circular stationary surface, for example, a shaft, the disc is configured relative to the stationary surface so as to define the tapered area or gap at diametrically opposite positions. Two flyweights that are mounted on the disc and mechanically interconnected pivot on the disc radially outward as the disc speed increases. A pair of rollers are located in the space between the disc and the stationary surface, and, as the weights move radially outward, are progressively forced into the tapered area or gap, eventually contacting the stationary surface where they are wedged in the gap, abruptly stopping the rotation of the disc. The counterweights' center of masses and the pivot points are such that the centrifugal force of one weight is slightly greater than the other. An overspeed switch is operated by the weights at a certain speed.
450617
Gowling Lafleur Henderson Llp
Otis Elevator Company
LandOfFree
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