Abstract: An apparatus and method for the detection of damage to a rope sheath of a sheathed synthetic fiber rope includes at least one breaking element covered by the sheath and extending along the rope. If the breaking element is damaged, a predetermined detectable characteristic thereof changes indicating likely damage to the rope sheath. The number and spacing of the breaking elements can be selected to determine the extent of localized damage to be detected. A control device monitors the breaking element to detect rope damage should it occur, and initiates suitable measures should they be necessary.

Abstract: A fastening system for lift shaft information transmitters includes multiple carriers to support shaft information transmitters in different height positions for each story upon cables stretched over the entire height of the shaft. A respective bracket arranged at a guide rail may be provided at each of the lower and upper shaft ends. Tension springs, which are connected at one end each with a respective shackle, are connected at cable thimbles of the lower cable ends. The cable can be prestressed by the shackle arranged at the lower bracket. In an illustrative embodiment, three cables are provided, wherein the middle cable is slightly displaced relative to the outer cables towards the rear in the depth of the shaft and the outer cables are slightly displaced inwardly in the width of the carrier. For larger lift installations, a retaining rail, which is arranged at the guide rail and by means of which the cables are held fast, may be provided for each three to four storys.

Abstract: An escalator step pallet has step tread and front riser portions joined together with side edges. The side edges are provided with a peripheral slot to accept replaceable demarcation inserts which identifies the side edges. The slot on the step pallet is provided with guides extending along its length to accept channels of the demarcation inserts and orient the demarcation inserts on the step pallet. Preferably, a pair of demarcation inserts are provided for each step edge, the first insert extending along the step tread and the second insert extending along the riser. The two inserts may interlock. In addition, each of the inserts is provided with a locking device which mates with a corresponding element on the step pallet to retain the insert in position. The locking device may be for example, a hook arm which engages a projection on the bottom surface of the step pallet.

Abstract: For fastening a shaft magnet to a guide rail there is provided a holder with clip characteristics, which consists integrally of a foot part, a back part and a front part, at which a recess for reception of the shaft magnet is arranged. The foot part of the holder has a respective reinforcing rib at each side and a first chamfer at the free end. The front part with the recess has a second chamfer. The foot part and the front part in the rest state run slightly towards one another towards their free ends. On pushing of the holder onto the guide rail the foot part and the front part are lightly spread, whereby the holder is firmly clipped to the guide rail by the spring properties of the back part. The shaft magnet can now be placed on the guide rail through the recess. The shaft magnet is fully retained at the guide rail by its magnetic force.

Abstract: An emergency release device for an elevator for persons that includes manually operable drive elements, by which the elevator cage can be moved by way of the elevator drive. The device further includes operating elements by which an operative connection with the elevator drive can be produced and the brake at the elevator drive released. A crank device, a flexible shaft and a switchable crown wheel gear transmission are present as drive elements. The switching or coupling in of the crown wheel gear transmission takes place via a handle with a toggle joint mechanism, a cable pull and an engaging fork. A handle for a remotely actuable brake release by way of a cable pull is present at the crank device.

Abstract: In an elevator installation system of at least one elevator installation with one or more elevators and a service center, which is functionally connected therewith, but provided spatially separate therefrom, the control device of the elevator installation is likewise disposed in the service center. The control device stands in connection with the elevator installation by way of a data transmission device. Data for the control of the elevator installation are prepared in situ and transmitted either to the service center or to the control device, preferably by way of a public telephone network. After processing of the information in the service center, a return transmission of the ascertained control instructions and a corresponding actuation of the setting members and actuators for the operation of the elevators take place.

Abstract: An apparatus for exchanging roller bearings of escalator and moving walkway chainwheel sub-assemblies includes the provision of auxiliary supports to which the chainwheel sub-assembly can be fixed. With removal of axle carriers the central axle becomes accessible, and can be displaced laterally to disengage from one of the roller bearings, which is subsequently removed and replaced. The central axle is then displaced in the opposite direction to allow access to an opposite roller bearing. Auxiliary centering for the axle in an axle cylinder is provided to prevent shifting of the axle within the cylinder when the axle carriers are removed. The steps of fixing the chainwheel sub-assembly to the auxiliary supports and subsequently shifting the axle to free the bearings constitute a method for bearing removal which does not require disassembly of the escalator/walkway conveying run and allows the escalator or walkway to be walked on during the exchange process.

Abstract: At a hoistway door on the side of an entrance area there is provided a movable sill that can be moved to uncover an opening that affords access to a machine room lying below the entrance area. The machine room is accessible not only from the access opening, but also from a hoistway pit of the elevator hoistway. When the elevator car is stuck at the lowest floor, emergency operation functions can be carried out through the uncovered access opening. The necessary operating elements of a drive device in the machine room are arranged in such a manner that they can be operated manually through the access opening.

Abstract: An elevator drive for a rope traction elevator, which is intended for installation in an elevator hoistway, includes of a gear with a traction sheave, a motor in an upright position on top of the gear, a brake and suspension elements which are slung over the traction sheave and provide vertical motion for an elevator car with a counterweight. The motor and the gear are inclined at an angle to the vertical. With this slightly tilted arrangement no part of the motor extends beyond the horizontal boundary of the gear. Furthermore, the brake is a part of the gear and non-detachably fastened to it, which makes it possible to mount the motor on the gear, and to dismount it therefrom, without difficulty.

Abstract: A connecting device for transport chains for the support and entrainment of plates for moving walkways or of steps for escalators of the type having two parallel chain runs to be joined together at a transverse spacing by connecting tubes serves to fasten the chain runs to the connecting tubes in a manner which facilitates subsequent detachment. Axle stubs of chain pins, which are constructed as support roller axles are pushed into the connecting tubes at both ends and are mechanically positively firmly held in an end position by slots in the connecting tube, a circular recess in the axle stub and a spring clip. The mechanically positive coupling is effected after the snapping of the spring clip through the slot into the circular recess of the axle stub, as in the end position of slot and circular recess are aligned with each other.

Abstract: A portable input apparatus permits an elevator destination call to be generated remotely from an associated elevator installation with respect to time and location. The input apparatus can be formed as, for example, a wristwatch having a user interface including a first display for visually indicating data, a first keyboard for the manual input of data or travel commands and an audio unit for the acoustic input of data or travel commands and for the generation of audio information to the elevator user. A destination floor identification, such as the English word “twenty-seven”, can be an acoustic command destination call entered into the input apparatus and indicated on the first display as “27” whereby in the proximity of the elevator installation, the destination call is automatically communicated to an elevator control of the elevator installation.

Abstract: A car structure for an elevator car, having two robust frame elements which bound the enclosure of the elevator car. A support structure and two crosspieces join the frame elements to form a framework which stiffens the elevator car. The frame elements support the upper guide shoes. The lower guide shoes being fastened to the side plates of the supporting structure together with the safety gears. Wall elements fastened to the frame elements, a floor plate resting on the supporting structure and having a floor element, and a ceiling plate fastened to the frame elements, form the shell of elevator car. The instruments and the mechanical and electrical subassemblies required for an elevator car ready for operation can be fastened to the frame elements, which serve as mountings, and to the ceiling plate.

Abstract: A brake apparatus engages and locks a piston of a hydraulic elevator drive carrying an elevator car or a cable pulley. Attached at the upper end of a hydraulic cylinder guiding the piston is a beam on which are pivotally mounted at least two brake arms at pivot points. The brake arms are pivoted by a slidable plunger toward and away from the piston. Each brake are carries a brake lining having a shoulder formed on an inwardly facing surface providing a transition from a piston contact portion to a recessed portion of the surface. The shoulder is positioned in the same generally horizontal plane as the brake arm pivot point for initially engaging the surface of the piston to reduce forces transmitted through the brake arms during engagement and disengagement.

Abstract: A maintenance trestle is stowable in folded-together form in the floor of an elevator car and has a platform forming the floor. The platform is steplessly adjustable in height between a stored position and an erected position by lifting equipment operating on the scissors principle. Buttons on a car panel that normally control car operations, such as opening and closing doors, can be converted to controlling the extension and retraction of the platform.

Abstract: A maintenance trestle is stowed in folded-together form below the floor of an elevator car. The maintenance trestle is erected by tilting the floor up towards the car wall about a first fulcrum. The maintenance trestle includes a platform hinged to at least one fastening point on the bottom side of the tilted-up floor and at least one support hinged to the platform at a fulcrum opposite the fastening point and engaging the elevator car. The floor and the support position the platform in an extended position wherein a person standing on the platform can reach through a hatch in the car ceiling to work in the elevator shaft. A stay for stabilizing the maintenance trestle can extend between the fulcrum on the platform and another fulcrum on the car.

Abstract: An elevator system for controlling movement of an elevator car coupled to a drive to serve floors in a building in response to hall calls generated from a plurality of hall call devices located at floors served by the elevator car, includes a control for generating a velocity pattern signal from stored parameter values representing desired jerk, acceleration and constant speed relative to time. The drive responds to the velocity pattern signal to move the elevator car to the floor associated with each hall call. The control selectively generates a high performance velocity pattern signal and an energy conservation velocity pattern signal in response to parameter values that can be changed by user input. Sensing a predetermined condition such as the application emergency power to the drive and/or a high wind speed automatically modifies the velocity pattern signal.

Abstract: A method and an apparatus for controlling an elevator is equipped with a deck-distance drive machine which by reference to positional information adjusts the distances between the individual cars in a common car sling in such a way that each car can stop at the corresponding floor accurately, i.e. without forming a step. Measured values of floor position are stored in memories and periodically updated so as to detect any changes such as, for example, building settlement. Based on this data the necessary deck-distances are calculated which are necessary for all the cars to stop without any of them forming a step. Furthermore, the method and the device can be correspondingly extended for a multi-decker elevator and for any type of control (conventional control, destination call control, etc.).

Abstract: A drive for an escalator is installed on one or both sides of the escalator at the lower and/or upper end and comprises one to several identically constructed drive units, which are arranged and distributed about the circumference of a main drive wheel. The drive units can be flange-mounted in either a longitudinal or transverse direction to the direction of travel of the escalator on a common main gear housing which can be identical for the support of one or more drive units. The operation of the motors of the drive units are controlled by way of a common frequency-setting device. A control and regulating unit processes input data into control and regulating data for the frequency-setting device, a relay control and optical signals and illumination for the escalator. The individual drive units are switched in or out according to the actual power requirements of the escalator during operation.

Abstract: A floor cover for use in conjunction with conveying equipment for persons located at an end of an escalator, moving walkway or the like, has one or more cover elements which can be walked on and which flushly close off, relative to the surrounding flooring, the opening of an under-floor space in which operating equipment is typically located. The cover elements can be lifted and laterally displaced to expose the opening for access to the operating equipment. The cover elements are separably joined together at joint locations. A resilient profile member is located at each joint to prevent the generation of noises and to provide a tight seal between the cover elements against penetrating dirt. The cover can be raised, laterally displaced and rotated away from the opening by means of a multi-part hinge. The turned-up cover elements can, with a support device, be retained in a raised position to form an entry barrier for the exposed opening.

Abstract: An apparatus for braking an elevator includes a storage tank (1) supplying a pressure medium (1.1) under low pressure through a line (2) to a brake cylinder (5) of a brake unit (BE). An adjustable restrictor (3) and a valve (4) are connected in series in the line (2) A piston (10) slides in the brake cylinder (5) between actuated and unactuated positions and has an attached brake lining (6) for engaging a traction sheave (8) of the elevator. A yoke (9) is attached to the brake cylinder (5) and piston pin (11) attached to the piston (10) slides in the yoke. A compression spring (12) acts between the yoke (9) and the piston (10) to move the piston to the actuated position and generate the required force for the braking and holding of the traction disc (8). The valve (4) is opened to release the pressure medium (1.1) from the brake cylinder (5) and allow the spring (12) to move the piston (10) to the actuated position.