A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.

A support member configured for use in a machine room of an elevator system is provided including a base having a car end and a counterweight end. The counterweight end is arranged substantially parallel to a wall of the machine room, and the counterweight end is arranged at an angle relative to the car end. An idler sheave having a plurality of grooves is mounted to the base in an orientation generally parallel to the car end. The idler sheave is configured to rotate about a first axis of rotation. A plurality of individual sheaves is mounted to the based in a staggered configuration substantially complementary to the angle of the counterweight end relative to the car end. Each individual sheave is configured to rotate about a second axis of rotation parallel to the first axis of rotation.

An elevator construction arrangement comprises: a first hoistway in a building, a first elevator car, a first counterweight, car guide rails for guiding the first car, and counterweight guide rails for guiding the first counterweight, a first elevator hoisting machine and a first suspension roping arranged to suspend the first elevator car and the first counterweight during construction time use, a protection deck mounted within the first hoistway during a first elevator installation in a bottom section of the first hoistway, a hoist device for hoisting a working platform, the hoist device preferably comprises a man riding hoist attachable to the first car or to an installation platform, and a hoist rope attachable to the first car or the installation platform and movable with the hoist device, and a first hoisting point configured to support the working platform via the hoist device and the hoist rope. During a first elevator installation in the bottom section of the first hoistway the first hoisting point is configured to be mounted to the protection deck and the working platform guided on the car guide rails is configured to be used as an installation platform in the bottom section of the first hoistway, and after the first elevator installation, the first car is in construction time use configured to be moved in the bottom section of the first hoistway by the first elevator hoisting machine which is installed at a top of the bottom section of the first hoistway and supported by the car guide rail, the first elevator hoisting machine suspending the first car and the first counterweight together with the first suspension roping, while the first hoisting point and the hoist device are removed from the first hoistway. A method for installing an elevator during construction of a building.

The present approaches are in the in the field of vacuum (or pneumatic) elevators, where the elevator cabin is brought into motion in a vertically situated or vertically inclined and hermetically sealed elevator shaft by means of aerial pressure differential above and below the elevator cabin. Such approaches do not require having any ropes, pulleys, chains, gears, or hydraulics that are traditionally used in conventional elevator systems. More specifically, the present approaches are in the field of panoramic vacuum elevators, where the elevator hoistway is built of panoramic glass panels running from floor to ceiling of every floor and the elevator cabin is built of panoramic glass panels running from floor to the ceiling of the cabin, and that this type of elevator does not incorporate any metal constructive structuresframes, mesh, guides or rails that are traditionally used in every conventional elevator product.

The invention relates to an elevator with an elevator car moving between landings at different levels in a first section of an elevator shaft. A second section located above the first section, the second section comprising a lifting device mounted under a crash deck and an installation platform which is movably suspended by the lifting device in the second section. At least one crash deck located between the first and the second sections.

An elevator system may have a vertical shaft and at least two cars that are arranged above one another in the shaft and can each be moved upwards and downwards. A first car may be coupled via first suspension means to a first drive and a first counterweight, and a second car may be coupled via second suspension means to a second drive and to a second counterweight, and to a machine room adjacent to the shaft which is spatially separate from the shaft. The first drive is disposed outside the shaft and the second drive is disposed at least partially within the shaft.

A machine assembly for use in an elevator system is provided including a drive sheave (52) configured to rotate about a first axis of rotation (R). A first roller shaft (54) is configured to rotate about a second axis of rotation (S) substantially parallel to the first axis of rotation. Rotation of the first roller shaft about the second axis of rotation is configured to rotate the drive sheave about the first axis of rotation. A first motor is operably coupled to the first roller shaft and is configured to rotate the first roller shaft about the second axis of rotation.

An elevator governor rotor comprises a central axis and a plurality of pairs of lobes. Each pair of lobes comprises an inner lobe and an outer lobe.

An integrated noise suppression apparatus for a pneumatic vacuum elevator is provided. The apparatus includes an equipment compartment which includes a first partition unit vertically surrounding one or more electric motors configured to suck air from elevator cylinders and release the air into atmosphere, a bottom plate comprising a channel, wherein an pneumatic flow control unit placed on top of the bottom plate configured to allow air from the atmosphere into the elevator cylinders, a second partition unit, a silencer unit which includes a first layer placed configured to initiate the circulation of air, a second layer having a first set of partition strips, a third layer having a second set of partition strips, a fourth layer, a fifth layer having a third set of partition strips. A plurality of layers is arranged one above the other to enable the air to pass between the atmosphere and the tubular cylinder.

An elevator may include: a hoisting machine; a set of hoisting ropes; a traction sheave that comprises a plurality of grooves; and diverting pulleys. The hoisting machine may engage the set of ropes via the traction sheave. Each groove may have an opening for receiving an individual rope. Each rope may include steel wires of circular, non-circular, or circular and non-circular cross-section, twisted together to form strands. The strands of each rope may be twisted together to form the respective rope. A thickness of each rope may be greater than or equal to about 2.5 mm and less than or equal to about 8 mm. An average of wire thicknesses of the steel wires may be greater than or equal to 0.1 mm and less than or equal to 0.4 mm. The strength of the steel wires may be greater than 2,300 N/mm.sup.2 and less than 3,000 N/mm.sup.2.