Abstract: Methods of lubricating fracking valves on a wellhead include mounting a distribution manifold of a grease distribution system on, adjacent to or remotely with respect to the wellhead, the distribution manifold having a plurality of manifold valves; selecting at least one of the fracking valves for lubrication; coupling at least one of the plurality of manifold valves of the grease distribution system to the at least one of the fracking valves; coupling a grease pump to the at least one of the plurality of manifold valves; opening the at least one of the plurality of manifold valves; and distributing grease from the grease pump through the at least one of the plurality of manifold valves to the at least one of the fracking valves by operation of the grease pump.

Abstract: A method of unlocking an elevator car door or an elevator car is provided including operating a door operator. A link arm of a car door interlock operably coupled to the door operator is rotated. If the elevator car is positioned within a landing door zone, an engagement link coupled to the link arm is configured to pivot relative to the link arm to disengage from an electrical contact. If the elevator car is not positioned within a landing door zone, the engagement link does not pivot relative to the link arm and remains engaged with the electrical contact.

Abstract: A method (500) and apparatus (50, 60) for lubrication of a gearbox (30) of an aircraft engine comprise provision (502) of oil to the gearbox (30) through a primary oil system (50) driven by a core (11) of the engine (10) in normal conditions; detection (504) of windmilling conditions and/or failure of the primary oil system (50); and in response to the detected condition or failure, activation (506) of an electric pump (61) of an auxiliary oil system (60), to provide oil to the gearbox (30).

Abstract: An illustrative example elevator assembly includes a header beam and a first elevator cab supported by the header beam. A plurality of vertically oriented rods extend beneath the first elevator cab. A horizontally oriented mid-beam is coupled to a first one of the rods near a first end of the mid-beam and coupled to a second one of the rods near a second end of the mid-beam. A second elevator cab is situated beneath the first elevator cab and beneath the mid-beam. At least one linear actuator is supported at least partially on the mid-beam. The linear actuator selectively causes vertical movement of the second elevator cab relative to the rods.

Abstract: An elevator sheave includes a sheave body and a coating on a surface of the sheave body. The coating includes microcracks and a filler in the microcracks. A method of making a sheave for an elevator system is also disclosed.

Abstract: A termination device for a suspension member of an elevator system includes a housing and a wedge assembly located in the housing. The wedge assembly includes a wedge interactive with the housing to apply a clamping force to the suspension member in response to an axial load acting on the suspension member and a compliant shear element secured to the wedge or the suspension member and configured to reduce shear loads on the suspension member.

Abstract: Elevator systems are provided. The elevator systems include a traveling component movable along a guide rail within an elevator shaft, the traveling component comprising a roller guide moveably engageable with the guide rail and an overspeed safety system. The overspeed safety system includes an actuator module operably coupled to the roller guide and a safety brake operably connected to the actuator module by a connecting link, wherein a safety brake element of the safety brake is operable to engage with the guide rail to stop movement of the traveling component.

Abstract: An elevator car (6) defining an interior space (12) for accommodating passengers comprises a support frame (22) positioned on a top side of the interior space (12); a support structure (30) pivotably mounted to the support frame (22); and a working platform (28) pivotably mounted to the support structure (30). The support structure (30) is pivotable with respect to the support frame (22) and the working platform (28) is pivotable with respect to the support structure (30) between a retracted position, in which the working platform (28) and the support structure (30) are oriented close to the support frame (22), and a deployed position, in which the support structure (30) extends away from the support frame (22) towards the interior space (12) and the working platform (28) extends away from the support structure (30).

Abstract: An elevator cable management system is described to provide constraints on cable movements at a point between the top and bottom of an elevator track. The system may include a moving retainer bar with a cradle on top of an elevator car, and a fixed retainer bar that retains cables when the elevator car is above the fixed retainer bar.

Abstract: A drain tube device that includes a first tubular region, a second region and arcuate tubular region interposed between the first tubular region and the second region. In certain embodiments, the arcuate region is contiguously joined to the first tubular and the second region such that the first tubular region and the second region form an acute angle in a first plane that is between 45° and 90°. The second region has an end distal to the arcuate tubular region and includes a longitudinal opening defined in at least a portion of the region between the arcuate tubular region and the distal end. In certain embodiments, the arcuate region can also have a configuration that provides an angle located out of the first plane between the first tubular region and the second region that is between zero and 90°.

Abstract: Elevator car frames are provided. The elevator car frames include a first upright, a second upright, a first support element connected to the first upright, a second support element connected to the second upright, and a retractable crosshead having a first portion and a second portion extending between the first and second support elements, wherein the retractable crosshead is operable between a first state wherein the first portion and the second portion are connected and a second state wherein the first portion and the second portion are separated.

Abstract: A braking device may include first and second brake pads disposed opposite one another about a guide rail, for developing braking forces when the brake pads engage the guide rail. The first brake pad has a wedge shape and may taper in a wedge direction. A front side of the first brake pad facing the guide rail is aligned parallel to the guide rail, and a rear side of the first brake pad is angled corresponding to the wedge shape. The rear side of the first brake pad lies in a sliding manner against a contact surface of a first brake pad seat disposed at an angle corresponding to the first brake pad. In a first setting a locking device unblocks a sliding movement of the first brake pad, and in a second setting the locking device blocks the sliding movement of the first brake pad.

Abstract: An electronic safety actuation device for braking an elevator car includes a safety brake movable between a non-braking position and a braking position, a first electronic safety actuator operably coupled to the safety brake via a first link member, and a second electronic safety actuator operably coupled to the safety brake via a second link member. Operation of the first electronic safety actuator applies a force to the first link member to move the safety brake from the non-braking position to the braking position. Operation of the second electronic safety actuator applies a force to the second link member to move the safety brake from the non-braking position to the braking position.

Abstract: A self-cooling fluid storage container includes a reservoir to store a fluid at a level that allows for an air space above the fluid. The fluid enters the reservoir. A fluid conduit receives the fluid at a fluid input opening to an internal fluid conduit that extends upward towards the air space. A heat exchanger portion extends sufficiently near the air space to provide a thermal exchange with the air space. The heat exchanger receives fluid to provide a cooling of the air space. The internal fluid conduit continues extending downward from the air space to a fluid output opening for distribution to a system that uses the fluid.

Abstract: Climber motors are a form of temporary winch that can be used before a permanent elevator drive system is installed at the top of a hoistway. A mount to be employed with such a climber motor may include a frame having a base, a lower portion, and an upper portion. The upper portion may support a lower plate, which lower plate supports sleeves, which sleeves in turn support an upper plate. The frame and the climber motor may be positioned within an elevator cab such that the sleeves extend upwards through apertures in a canopy of the elevator cab. Once the upper plate is positioned between the sleeves and a crosshead above the elevator cab, the climber motor may be engaged to cause the sleeves to exert an upward force on the crosshead and thereby lift the elevator cab in the hoistway.

Abstract: An oil supply structure includes an oil passage that provides communication from a wall portion of a casing, which corresponds to a shaft end portion of a rotary shaft pivotally supported in the casing to the shaft end portion of the rotary shaft. The oil passage includes a shaft end oil passage and an in-shaft oil passage. The shaft end oil passage is provided on a shaft end portion side of the rotary shaft. The in-shaft oil passage is provided in the rotary shaft, and extends an axial direction of the rotary shaft from the shaft end oil passage. A flow rate adjusting member is provided to the shaft end oil passage, and adjusts lubricating oil which flows from the shaft end oil passage to the in-shaft oil passage.

Abstract: An elevator system arranged in an elevator shaft of a building in the construction phase grows with the building using a lifting process. The system includes a machine platform with an elevator drive machine and an elevator car suspended on the machine platform by a carrier. The elevator car is raised during the lifting process by a lifting device. The elevator system also includes an assembly platform that can be mechanically moved in relation to the machine platform along the elevator shaft. The lifting device includes a drive arranged on the machine platform and is also used to move the assembly platform.

Abstract: Disclosed is an electronic safety brake actuator (ESBA) for actuating an electronic brake, the ESBA having: a first member having a proximate side and a distal side spaced in a widthwise direction, a first nominal front surface and a first rear surface spaced in a depth-wise direction, and a first top surface and a first bottom surface spaced in a height-wise direction, a plurality of side members including a proximate member and a distal member, the proximate member disposed adjacent the proximate side of the first member and the distal member disposed adjacent the distal side of the first member, the first member being magnetic and the plurality of side members being at least partially non-magnetic, and the plurality of side members including a respective plurality of nominal front surfaces including a proximate front surface and a distal front surface, the plurality of nominal front surfaces being co-planar.

Abstract: The invention describes a footrest for a stairlift chair in which the safety mechanisms included in the footrest are enveloped in a flexible cover that allows the safety mechanisms to function in the intended manner yet prevents the intrusion of dirt and objects that might interfere with the operation of the safety mechanisms. Various further features are described to enhance the aesthetics of the chair.

Abstract: A materials handling vehicle including a mast assembly supported on a power unit. The mast assembly includes plural telescoping sections defined by pairs of laterally spaced rails. An operator compartment is supported on the mast assembly for vertical movement, and a dash is located forward of the operator compartment and includes a substantially horizontal support surface for packages. At least one control device is associated with the dash for operation by an operator standing on the operator compartment. A transparent window defines a portion of the horizontal support surface and provides the operator with a view of a floor surface when the operator compartment is in an elevated position such that the operator does not need to move his head outside the perimeter of the vehicle when looking down. When the mast assembly is in a collapsed position the mast assembly is no higher than the horizontal support surface.