A deflector sheave mounting bracket for mounting a plurality of individual deflector sheaves of an elevator system includes a top plate, a bottom plate, and a plurality of support plates connected at a first end to the top plate and connected at a second, opposite end to the bottom plate. A plurality of openings for receiving the plurality of deflector sheaves is defined between pairs of adjacent support plates of the plurality of support plates. At least one opening of the plurality of openings is vertically offset and horizontally offset from another of the plurality of openings.

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.

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 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 fastening apparatus for fastening a drive of an elevator system, wherein the elevator system includes an installation structure for installing the drive, has a beam with two feet for fastening the beam to the installation structure. The fastening apparatus includes a drive bracket for receiving the drive, wherein the drive bracket is fastened to the beam, and a support leg that is fastened at one end to the drive bracket and additionally supports the drive bracket on the installation structure.

A deflector sheave mounting bracket for mounting a plurality of individual deflector sheaves of an elevator system includes a top plate, a bottom plate, and a plurality of support plates connected at a first end to the top plate and connected at a second, opposite end to the bottom plate. A plurality of openings for receiving the plurality of deflector sheaves is defined between pairs of adjacent support plates of the plurality of support plates. At least one opening of the plurality of openings is vertically offset and horizontally offset from another of the plurality of openings.

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.

A traction machine base includes a top member, a bottom member, a bottom member, first bolts, and second bolts. The top member is intended for supporting a traction machine. A plurality of attachment holes for fixing the top member are formed in the bottom member. A plurality of attachment holes for fixing the top member are formed in the bottom member. The first bolts pass through the attachment holes and fix the top member to the bottom member. The second bolts pass through the attachment holes and fix the top member to the bottom member. The top member is fixed to the bottom member using a smaller number of the first bolts than the number of the attachment holes. The top member is fixed to the bottom member using a smaller number of the second bolts than the number of the attachment holes.

The present invention provides a tractor assembly and an elevator. The tractor assembly includes: a rack; multiple tractors; and multiple traction parts connected to an elevator car and an elevator counterweight respectively via the tractors; wherein the multiple tractors are mounted on the rack respectively, and are staggered along a horizontal direction; the vertical direction extends along an elevator hoistway, and the horizontal direction transects the elevator hoistway to extend. With such arrangement, on the one hand, arrangement of two tractors is implemented without making too many changes to an existing structure space; on the other hand, compared with a unit that uses a heavy load tractor, the product cost can be reduced significantly while achieving basically the same technical effect. In addition, the use of two tractors of a relatively small size also implements machine room-free or small machine room arrangement.

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.