B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/35
B66B 1/36 (2006.01) B66B 1/34 (2006.01) B66B 3/00 (2006.01) B66B 5/06 (2006.01)
Patent
CA 1220885
51,233 ABSTRACT OF THE DISCLOSURE A speed switch for an elevator system which obtains its information from distance pulses generated in response to car travel. The reference speed setting of the switch is a function of the desired predetermined speed at which the switch is to operate, the number of distance pulses produced per inch of car travel, and the time required by a counter to count to a predetermined value. This arrangement facilitates the selection of the reference speed setting of the speed switch, such as by using a thumb switch. An emergency terminal stopping arrangement using the speed switch is also disclosed, as is a new and improved elevator system in which the normal slow-down speed pattern and emergency terminal stop functions are both responsive to distance pulses produced in response to car movement, enabling a terminal slow-down speed pattern to be initiated by circuitry independent of the distance pulses, such as via a notched terminal slow- down blade adjacent to each terminal floor.
461203
Lawrence Fitzroy L.
Tinios Pantelis G.
Oldham And Company
Westinghouse Electric Corporation
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