Abstract: A hydraulic elevator system includes a tank and power unit configured with noise and/or vibration abatement features. In one aspect the tank may include an insulated and sealed lid. In another aspect tank-to-floor dampening pads may be used. In another aspect the tank may have an increased thickness and/or stiffening trays or panels may be installed on the tank. Still in yet other aspects the noise and/or vibration abatement features may be associated with the power unit. For instance, in one aspect of the present disclosure the power unit may mount to the tank using a plurality of isolators. In another aspect, silencers and/or an expansion tank may be used to alter the hydraulic fluid flow properties within the system. Still yet, in another aspect certain noise generating components of the power unit may be wrapped in a noise blanket having an air barrier within.

Abstract: A synthetic rope for an elevator having improved resistance to compression and abrasion is provided and comprises a plurality of strands forming layers of the rope, each strand formed from a plurality of pre-twisted strands made from high modulus synthetic filaments. One or more of the strands or layers of strands may be impregnated with a lubricant, such as polytetrafluoroethylene, to reduce the abrasion among the strands and substrands, and increase the service life of the rope. The exterior of the rope may be covered by a jacket that provides for traction with the drive sheave. An elevator system comprising the claimed rope is also provided.

Abstract: A synthetic rope for an elevator having improved resistance to compression and abrasion is provided and comprises a plurality of strands forming layers of the rope, each strand formed from a plurality of pre-twisted strands made from high modulus synthetic filaments. One or more of the strands or layers of strands may be impregnated with a lubricant, such as polytetrafluoroethylene, to reduce the abrasion among the strands and substrands, and increase the service life of the rope. The exterior of the rope may be covered by a jacket that provides for traction with the drive sheave. An elevator system comprising the claimed rope is also provided.

Abstract: The present invention provides an elevator safety brake pad and elevator safety brake pad assembly for use in high-speed, high-load elevators. The brake pad is preferably manufactured from a carbon metallic material and may have a burnished finish. The pad provides a consistent coefficient of friction that does not deteriorate with use. Also disclosed is an elevator safety brake wedge that is suitable for use with the elevator safety brake pad and safety brake pad assembly.

Abstract: A geared traction elevator includes a worm shaft, supported by a pair of tapered roller bearings in a gear box housing, one end of which projects out of an opening in the gear box housing and is coupled to the motor. The motor end bearing assembly is secured against axial movement by a retainer ring, which is secured in a groove in the gear box housing, and the motor end of the worm shaft is sealed by a dynamic seal, also secured in the housing. A cap bears against the bearings at the other end of the shaft, to pre-load the bearings to a predetermine level. In this manner, the dynamic seal may be replaced without affecting the pre-load setting. Preferably, the bearings are disposed in openings at opposite ends of the gear box housing which are large enough to allow the worm shaft to be removed through either end. The arrangement simplifies the manufacture of the gear box, and reduces the time and parts necessary to replace the dynamic seal.