Abstract: An elevator assembly (20) includes braking devices (30) for controlling movement of an elevator car (22). A braking device (30) includes an electrical actuator (62) for controlling relative movement between a carriage (42) and a base (40) that is mountable on the elevator car (22). Relative movement between the carriage (42) and the base (40) results in at least one braking member (46) following a surface (60) on the base (40) for movement between a released position and a braking position.

Abstract: A control arrangement (100) for an elevator brake, comprises a control circuit (110) adapted to generate, according to a demand for releasing a first braking member of the elevator brake, a first actuating signal and to generate, according to a demand for releasing a second braking member of the elevator brake, a second actuating signal; a first terminal (112) for outputting the first actuating signal to a first electromagnetic actuating means (26) of the elevator brake, a second terminal for outputting the second actuating signal to a second electromagnetic actuating means (30) of the elevator brake; the control arrangement (100) being adapted to allow at least the following modes of operation: A) a normal operation mode in which the first and the second actuating signals are supplied synchronously to the first and second electromagnetic actuation means (26, 30), respectively, and B) a single braking member test operation mode, in which one of the first and second actuating signals is supplied to the respect

Abstract: A method for creating a temporary safety space within an elevator hoistway by preventing upward or downward movement of a car or counterweight along guide rails. The method includes the steps of providing engagement members on the guide rails and extending support struts from the car or counterweight to either side of a guide blade of the guide rail, whereby upward or downward movement of the car or counterweight along the guide rail is prevented when the extended support struts bear against the engagement members.

Abstract: In an emergency brake device for an elevator, a pair of pivot levers are pivotably provided to a car. Each pivot member is provided with each of a plurality of wedges that can be brought into and out of contact with a car guide rail as the pivot member pivots. A connecting member is connected between the pivot levers. The car is mounted with an electromagnetic actuator for displacing the connecting member in a reciprocating manner so as to pivot the pivot levers in a direction for bringing each wedge into and out of contact with the car guide rail. The electrical actuator is actuated when inputted with an actuating signal from an output portion mounted in a control panel.

Abstract: An elevator car with brake equipment, which is arranged in the region of the elevator car, for holding and braking the same, which brake equipment includes: a brake unit which can co-operate with a brake rail, an actuating device which can produce an actuator force FA, and a connecting linkage which connects the actuating device with the brake unit in force-active manner for transmission of the actuator force FA, wherein the brake unit in unloaded setting is in its open setting and the connecting linkage is a pull cable.

Abstract: A lift car with a brake device which is arranged in the region of the lift car for holding and braking the latter; the brake device includes a brake unit which can interact with a brake rail, an actuating device which can generate an actuator force, and a connector which connects the actuating device to the brake unit in a force-active manner in order to transmit the actuator force, wherein the brake unit is in its open position in the unloaded position.

Abstract: In an elevator door apparatus, an elevator door is capable of reciprocating between a door closure position for closing an elevator entrance and a door open position for opening the elevator entrance. The elevator door is driven by a door drive device. The door drive device is controlled by a door control device. The door control device adjusts the door open position based on control information for controlling an operation of an elevator, obtains a door opening/closing pattern for the elevator door to be opened and closed between the adjusted door open position and the door closure position, and controls the door drive device so that the elevator door is reciprocated in accordance with the obtained door opening/closing pattern.

Abstract: The invention relates to an electromagnetically ventilating spring-pressure brake for mounting on the driving disk (15) or the driving disk shaft (16) of already existing elevators, which are operated with cables passing over a driving disk. The external-mounted brake (1) is situated concentric to the central axis of the driving disk (15) or driving disk shaft (16) on a separate base (23) of the structure on the free side (i.e. opposite the driving side) of the driving disk (15) and is fastened in a stationary and rotationally fixed manner. The rotor (5) of the brake (1) is connected in an essentially rotationally fixed manner to the free end of the driving disk (15) or of the driving disk shaft (16) in order to transmit the braking torque of the external-mounted brake to the driving disk (15).

Abstract: Brake equipment for holding and braking an elevator car in an elevator installation, which is arranged to be movable along a brake track in two directions of travel, includes a mount with a brake lining which automatically adjusts under friction couple with the brake track on movement of the elevator car relative to the rail and in that case tightens a first tightening means, which can be released by an actuator. The first tightening means tightens the mount together with the brake lining against the brake track by a biasing force. The brake equipment produces, with unmoved brake equipment and an unreleased state of the actuator, a holding force acting in both directions of travel. The holding force is determined substantially by the biasing force acting on the mount.

Abstract: The invention relates to a safety device arrangement for an elevator door opening, said safety device arrangement comprising at least a toe guard (3) placed substantially at the lower edge of the elevator car and a safety circuit (21) connected to the elevator system. The safety device arrangement comprises a safety circuit switch (16) placed on the toe guard (3) and a bypass switch (17) connected to the safety circuit (21), said bypass switch being fitted to bypass the safety circuit switch (16) at least when the elevator is at or close to the lowest landing floor.

Abstract: A device and procedure for creating and securing a temporary safety space within an elevator hoistway such that a service or maintenance technician can work with impunity from a car entering the safety space. In particular, the device includes a stop bar for installation between and in engagement with opposing guide rails of the hoistway to prevent upward or downward movement of the car or a counterweight.

Abstract: A safety device includes a trigger mechanism for triggering a braking wedges attached to first and second double levers to stop an elevator car. A retaining spring detents with a pin on the first double lever and a tension spring engages either the first double lever or the second double lever. The retaining spring maintains the double levers unactuated during normal operation of the elevator and the spring element actuates the double levers after an actuation of the trigger mechanism by a speed limiter.

Abstract: An adjustable brake is provided that applies a braking force directly to an elevator sheave over which a cable suspends an elevator car and a counterweight. The brake includes a pair of calipers that apply a braking force to either longitudinal end of the sheave. The brake is spring set and may be released using, for example, electromagnetic, hydraulic or pneumatic forces. The calipers are mounted to and movable along a rail to enable adjustment of the location of the calipers. Further, the calipers are coupled together using one or more pins and are movable along the pins to enable adjustment of spacing between the calipers. The brake is particularly adapted for use with existing elevators because the brake does not require modification to the existing elevator sheave.

Abstract: A safety plank assembly for mounting on a bottom of an elevator car in a traction-type elevator system includes a pair of parallel extending plank beams connected by a cross support member. A rope sheave is rotatably mounted at each of opposed ends of the plank beams to define a diagonal rope path through the assembly for underslung support of the elevator car. Traction weights and balancing weights can be attached to the beams and provision is made for mounting safety equipment.

Abstract: An apparatus for transporting people by a spreader having a vertically moveable head beam with a pair of horizontally extendable long bars includes a pair of personnel cages carried by a pair of cantilever beams extending from a housing. The personnel cages can be mounted to free ends of the long bars and be moved vertically with respect to the spreader.

Abstract: The invention concerns a method for braking a traction sheave elevator. To stop the elevator in the event of an emergency, the braking of the elevator is complemented by using a braking device not comprised in the drive machine. The invention also concerns a traction sheave elevator provided with a braking device not comprised in the drive machine and designed to improve the efficiency of emergency stopping. The maximum force decelerating the elevator and generated by the braking device equals about half the weight of the nominal load of the elevator.

Abstract: A safety brake for braking a load receiving portion of an elevator has at least one brake wedge that penetrates a gap between a resiliently supported pressure body and a guide rail for the load receiving portion of the elevator and thereby generates a braking force. A stroke limiting device limits the penetration stroke of the brake wedge and controls the braking force in dependence on the retardation value of the load receiving portion of the elevator.

Abstract: A braking device for load carrying cars in vertical conveyor installations with elastic suspension apparatus holds fast to guiderails to prevent vertical displacements and vertical vibrations while stopped at landings. The braking device contains integrated sensors for registering the holding forces occurring between the load carrying car and the guiderails. Before travel of the car continues, the signals from these sensors enable a drive regulator to adjust via a drive unit the tensile force in the suspension apparatus carrying the car in such a manner that the braking device is relieved and can be opened without generating a jerk on the load carrying car.

Abstract: A multiple vehicle position cantilevered lift comprising a stiff support for a cantilevered lift, said support being sized so as to be resistant to twist and torque loads, said support having a base plate with openings for selective alignment with openings provided in a concrete floor or footing, the openings in said floor having disposed therein an anchoring member comprising a compressible sleeve having a predetermined diameter and a threaded piston, having a predetermined diameter slightly larger than the cylinder and being contained in said sleeve and having a threaded internal or interior wall for receiving an anchor bolt and having a substantially tapered outer wall wherein as the bolt is fastened to a predetermined torque, the piston rises in the sleeve and expands the sleeve compressing the sleeve outwardly against the concrete surrounding the opening to anchor the sleeve and the bolt in the base plate, said support including framework to movably engage and support at least one cantilevered vehicle li

Abstract: In a method for checking and adjusting an elevator governor which includes an emergency stop switch 20a) for tuning off the power supply of an elevator hoist to brake it; first and second fixed conductive guide rails (18) extending vertically the entire length of an elevator hoistway; an emergency brake (31) attached to an elevator car assembly containing an elevator car and a balance weight balancing therewith, for grabbing the first fixed conductive guide rail (18) to brake the elevator car assembly by friction; a magnet assembly (16) mounted on the elevator car such that it is displaced by an eddy current induced based on the relative speed between the second fixed conductive guide rail and the magnet assembly disposed opposite thereto; and an emergency stop mechanism for actuating the emergency brake (31) upon detecting that the displacement of the magnet assembly (16) has reached displacement corresponding to a critical speed critical; a pseudo speed generator, which generates speed by straight-line moti

Abstract: An apparatus for stacking sheets has a frame defining a stacking station, a conveyor for delivering the sheets continuously one after the other at a predetermined upper level in a transport direction to the station, and a platform vertically displaceable in the stacking station between the upper level and the lower level. The antidrop protector includes a vertically extending rack fixed on the frame, a lever pivoted on the platform adjacent the rack and having a pair of arms one of which is connected to a lift cable, a stop on the other of the lever arms engageable in the rack, and a spring braced between the platform and the lever. The cable is connected to a drive that tensions the cable, displaces the platform vertically, and rotates the lever in one rotational sense. The spring urges the lever in the opposite sense so that when the cable is detensioned the spring urges the stop into the rack and vertically arrests the platform.

Abstract: A progressive safety gear for elevators, having a console which encompasses one guide rail for an elevator car and is positioned in a transverse direction to the guide rail. Two brake shoes are mounted on the console so as to be positioned one on each side of the guide rail. One of the brake shoes functions as a passive brake shoe and other as an active brake shoe. The active brake shoe is supported on an eccentric which is fastened to a cam so that they rotate together. The cam and the eccentric are able to rotate about a common pivot. The cam and the eccentric together form a single-part actuating element. Moving the elevator car in the direction opposite to the direction of engagement causes the cam to rotate backwards, which in combination with the vertical play on the passive brake shoe enables the engaged safety gear to be easily and safely released again. An alternative version is provided which has a multi-part actuating element with an adjustable angle.

Abstract: An elevator safety based on having the elevator lift-rod, under the influence of the elevator governor, cause to rotate approximately elliptical cams, called quasi-elliptical cams. The cams are wider in one orientation, just as an ellipse has a major axis, wider than its minor axis. The cams are positioned to push against a brake pad as they rotate so that the major axis of each cam changes orientation with the minor axis. The cams can be shaped to simulate a wedge-type safety, even one using a wedge with multiple ramp angles. With essentially no additional complexity, the cam safety can be designed to operate with a bi-directional governor, one which exerts, usually through an intermediate linkage, force on the lift-rod in either the up or down motion depending on the unintended motion of the elevator.

Abstract: A hoist lifting apparatus for vehicles has a pair of spaced posts and a carriage slidably mounted for vertical movement in each post and secured to load bearing arms for supporting a vehicle. A locking assembly is pivotally mounted on each carriage for locking it in a selected, raised position. The post has a wall facing the carriage with a series of vertically spaced openings, and a locking arm pivotally mounted on the carriage is biased into successive openings as the carriage is raised. Once the desired height is reached, the carriage is lowered slightly in order to lock the arm in a selected opening. A release cam is pivotally mounted on the locking arm and acts to release the locking arm from the selected opening when the carriage is raised slightly from a locked position. A bypass member holds the locking arm in the retracted position as the carriage is lowered after release of the lock.

Abstract: A rail vehicle has a pivotal latch pivotally mounted to its frame so that gravity urges one end of the locking latch toward a rack extending along the railway on which the rail vehicle is positioned for movement. A smooth slideway extends parallel to and adjacent the rack and a rocker arm pivotally mounted on the locking latch has a lower end pivotally urged by gravity into contact with the slideway so that forward movement of the rail vehicle pivots the rocking arm to cause the locking latch to be pivoted upwardly out of contact with the rack with any initiation of rearward movement causing reverse pivoting of the rocker arm to lower the locking latch into engagement with the rack to prevent further reverse movement of the vehicle. Maintaining the locking latch out of contact with the rack during forward movement reduces wear and avoids the generation of clacking noise during forward movement of the vehicle.

Abstract: An elevator brake regulating apparatus includes brake actuators, a source of pressured fluid and a brake regulating control connected between the actuators and the fluid source. A fastening housing is attached to a carrier frame of a elevator car and has recesses for retaining guides of a brake shoe with elastic pads to provide vertical displacement of the guides under braking. The brake shoe has brake pads for engaging running surfaces of a guide rail. A brake sensor in each brake pad monitors the condition of the brake pad and signals the control to apply pressured fluid to actuate the corresponding brake actuator. Other sensors for speed, acceleration and retardation of the elevator car are connected to the control for selectively applied the pressured fluid to regulate the braking force on the elevator car.

Abstract: A magnet 34 is mounted to a linkage 30 which passes vertically over a conductive vane 32 which extends the entire length of the elevator hoistway 46. Eddy currents induced in the conductive vane 32 as the magnet 34 passes over the conductive vane 32 cause a reaction force on the magnet 34 and the linkage 30. The reaction force causes the safety 26 or 28 to contact a guide rail 22 on which an elevator car 10 is riding, thereby braking the elevator car 10 at any point in the hoistway between the terminals and eliminating the need for a governor. The vane width 50 is large at the terminals as compared to the middle of the hoistway 46 which increases the reaction force at the terminals. The invention eliminates the need for a governor.