Abstract: A suspension system for attaching a load-bearing member to a lifting mechanism of a hoisting apparatus for a person, in particular a handicapped person in sitting or recumbent disposition, includes a framework having at least three tow lines secured to the lifting mechanism and extending downwardly for attachment to the load-bearing member at points of securement positioned in front and behind a viewing direction of a person carried by the load-bearing member, thereby defining front and rear tow lines, wherein the front and rear tow lines are movable in opposition to one another in vertical direction.

Abstract: A hoist, including: load suspension device, a lifting means for raising and lowering the load suspension device; a traction mechanism connecting the suspension device with the lifting device; and a control device for the lifting device and the load suspension device. The control device is connected with the load suspension device and including a housing, a handle for manipulating the load suspension means, switching members arranged in the housing which are actuable for controlling the lifting device, and switching rockers arranged in the housing so as to be able to actuate the switching members. The switching rockers are each inclined toward the handle and are swivable around and connected to one end of a rocker shaft extending horizontally when the control device is considered as vertically suspended from the traction mechanism.

Abstract: A hoist with a lifting device, by way of which a load suspension device connected with the lifting device via a traction mechanism can be raised and lowered, and with a control device which is arranged between the load suspension device and the traction mechanism and includes a housing with a handle for manipulating the load suspension device. Switching members are arranged in the housing for controlling the lifting device, and a high-strength connecting member is fastened in the housing, with the traction mechanism and the load suspension device being fastened to the connecting member. The housing is divided into a mechanical part with the handle for receiving an actuating mechanism for the switching members and into an electrical part for receiving the switching members with the connecting member being arranged between the mechanical part and the electrical part.

Abstract: In this method and apparatus for the wireless control of a lift device and, in particular, of a traveling crane, a plurality of transmitting units communicate by infrared transmission of data telegrams to a receiving unit associated with the crane. The data telegrams include an integrated address signal that is unique to each transmitting unit and is stored in a memory module of the transmitting unit. The receiving unit decodes the data telegram and, if the crane is not then in use, stores the address signal in a comparison circuit of the receiving unit. Only subsequently-received data telegrams incorporating the stored address signal are passed to the crane for controlling the crane, thereby assuring that a user not then in control of a crane operation cannot interfere with its operation.

Abstract: A compact hoist with a central hoist housing and an enclosed transmission located opposite a motor. The output shaft, of the motor, is guided coaxially through a transmission output shaft that is hollow and supports a sprocket wheel, or similar device, and receives power from the transmission. The hoist is particularly easy and economical to assemble, service and repair, and is flexible when in use. In a preferred embodiment, the motor shaft is mounted in a transmission cover opposite the motor and the transmission-output shaft is mounted, on one side in the wall of the hoist housing, and on the other side in an end plate of the motor. That configuration makes the invention particularly suitable for automatic assembly.

Abstract: The rotor is held on a shaft by means of a membrane providing an easy resilient deflection in axial direction and being stiff for torque transmission in azimuthal direction. The membrane is star-shaped, or has spiral arms or is of polygonal configuration. A membrane carrier is connected to a central part of the membrane or to polygon corner points; the rotor, through a sleeve extension of a short circuiting ring is connected to peripheral points of the membrane. The carrier is splined to or slip friction coupled to the shaft.

Abstract: A bi-directionally effective overload protection device for a rotation machine part includes two coaxially arranged, mutually juxtaposed ring discs frictionally connected to a machine; a gear disc with outer gearing and inwardly directed flange means circumscribes the ring discs; a plurality of springs hold said gear disc normally in particular position in relation to the ring discs, permitting the gear disc to rotate relative to the ring discs upon occurrence of an overload in either directional rotation; a dual switching ring having an inner and an outer ring portion is connected to the second ring disc through resilient bar or leaf spring portions of the switching ring; actuator ramps on the outer and inner ring portions cooperate with axially extending cams on the gear disc so that either the inner or the outer ring is axially shifted on overload in one or the other direction; switches are arranged in relation to the inner and outer ring portion for being actuated by the particular one that is axially shi

Abstract: Control signals are transmitted to and from a vehicle in that stationary transducers are mounted on a parallelogram suspension for a collector line in a particular relation thereto, while a complementary and cooperating transducer is mounted next to a collector shoe on a vehicle, so that the collector line adjustment is used to ensure particular alignment of the transducers when passing.

Abstract: A lifting device having front plates at the end of the winch drum the front plates being provided with flanges to which bracket elements are secured. The bracket elements are interconnected by means of tension rods as well as carriers for the wheels to obtain a rectangular configuration.

Abstract: A motor with output shaft is coupled to an input shaft of a planetary gear system inside a case which in turn is disposed in the winch drive. The output shaft of the transmission gear traverses the other end of the case and is connected to a web plate of the winch drum by means of a spline shaft. On one end of the winch drum, the casing for the transmission gear and the shield of the motor are interconnected and connected to a principle frame and the winch drum is journaled thereat through roller bearings using cylindrical surfaces of the case and the drum directly as races. The winch drum is journaled at the other end through appropriate bearings in the principle carrier frame.

Abstract: A track wheel has an axially extended hollow hub with internally directed gear teeth capable of receiving an outer toothed driving shaft. The hub is supported by roller bearings in a bearing box from which the wheel may not be inadvertently removed once the box halves have been welded together. The sides of the bearing box have bores in appropriate locations which serve to allow the box to be fastened in a variety of configurations to the element to be transported by the track wheel. The side surfaces of the two halves of the bearing box are provided with recesses for flush and precise arrangement of the roller bearings such that the box can be flushly mounted to other elements. The roller bearings are secured within the recesses by means of snap rings which fit into annular slots located on the outer cylindrical surfaces of the hub.

Abstract: A circuit breaker is disclosed wherein two breakers are arranged in mirror image relation having their respective contacts facing each other and abutting alternately either a common contact carrier of U-shaped configurations while double contact is prevented mechanically. In an alternative version the stationary contacts are arranged for an axial operation change. The arrangement permits reduction in internal connections as well as in space requirement without loss in function as compared with known multiple circuit breaker units.

Abstract: The disclosure is directed to a method and apparatus for determining the cumulative load stress on hoisting equipment. Generally, the apparatus according to the invention comprises a system of electronic components operable to measure and indicate the cumulative load stress handled by a particular hoisting installation. The apparatus includes a time signal generator, generating a series of constant time interval electrical signals, first electrical conductor means, selectively operable to conduct an electrical signal indicating operation of the hoisting equipment and a second electrical conductor means selectively operable to conduct an electrical signal corresponding to the value of the load being handled by the hoisting equipment. First and second circuit means are electrically associated with the time signal generator and first and second electrical conductor means.

Abstract: The disclosure relates to a claw clutch mechanism, comprising opposing, interengaged clutch halves, each having axially projecting claws extending into the other. Cylindrical elastic bumpers are interposed between adjacent claws to absorb shock and accommodate axial displacement of the clutch halves. The clutch halves are of pressure cast aluminum construction, formed to provide large radius transitional fillets or roundings at the base of the claws, which correspond in radius to the contours of the cylindrical elastic bumpers. Integral reinforcing rings connect the angularly arrayed claws of each clutch half, both on the outside and the inside of the claws, to provide mechanical support for about half the length of the claw. The reinforcing rings also serve to confine the elastic bumpers, and may be provided with opposed flat surfaces at positions corresponding to bumper locations.

Abstract: A suspended pull or control switch is provided for overhead mechanical devices, such as power hoists, in which the control switch is so suspended and configured to be physiologically oriented with respect to the attendant's position that the attendant may grasp and visually consult the switch over a long period of time without becoming as fatigued as is the case with conventionally positioned switches. This is achieved by configuring the body of the switch, or at least that portion grasped, to be angled from the vertical axis of suspension of the switch to that degree necessary for the handle portion to be ergonomically work-oriented with the attendant's hand and angle of vision. A dual control switch may be utilized in which both hands of the attendant would be conformed to.