Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456 BE486367A - - Google Patents
B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces