An aligning device for aligning a guide rail of an elevator system has lower and upper rail bracket parts and at least two movement elements. The lower rail bracket part is fixed to an elevator shaft wall and the upper rail bracket part holds a guide rail. The lower and upper rail bracket parts each have a connecting region for fixing to one another. The movement elements move the lower rail bracket part relative to the upper rail bracket part. Each of the movement elements interacts with both of the connecting regions of the rail bracket parts. Each of the movement elements is rotatable about an axis of rotation and interacts, eccentrically with respect to the axis of rotation, with at least one of the rail bracket parts so as to abut laterally opposite contact surfaces of this rail bracket part.

Disclosed is an elevator inspection system, the system having: a robotic platform configured to inspect a hoistway; a platform propulsor operationally connected to the robotic platform; and a controller operationally connected to the platform propulsor, wherein the controller is configured to control the platform propulsor to propel the robotic platform vertically within the hoistway.

The arrangement comprises an installation platform movable upwards and downwards in the elevator shaft, at least one light source arranged at a predetermined position in the elevator shaft below the installation platform and producing a vertically upwards directed collimated light beam, at least one primary digital imaging device positioned on the installation platform and being arranged to take electronic images of the light beam hitting the photosensitive sensor of the at least one primary digital imaging device or of a pattern created by the light beam on a reflective or transparent screen positioned at a distance in front of the photosensitive sensor of the at least one primary digital imaging device, whereby the horizontal position of the installation platform in relation to the elevator shaft can be measured from the electronic images taken by the at least one primary digital imaging device.

The arrangement comprises an installation platform movable upwards and downwards in the elevator shaft, at least one light source arranged at a predetermined position in the elevator shaft below the installation platform and producing a vertically upwards directed collimated light beam, at least one primary digital imaging device positioned on the installation platform and being arranged to take electronic images of the light beam hitting the photosensitive sensor of the at least one primary digital imaging device or of a pattern created by the light beam on a reflective or transparent screen positioned at a distance in front of the photosensitive sensor of the at least one primary digital imaging device, whereby the horizontal position of the installation platform in relation to the elevator shaft can be measured from the electronic images taken by the at least one primary digital imaging device.

The present invention includes machine room unit hoisters 9a, 9b, 9c by which a machine room unit 6 is suspended from a support member provided in a hoistway so as to be movable in an ascending/descending direction. The machine room unit hoisters 9a, 9b, 9c suspend the machine room unit 6 at suspension points 21a, 21b, 21c. The machine room unit hoisters 9a, 9b, 9c are provided, supported by the support member. When viewed from a virtual horizontal plane over the machine room unit 6, distances from a center G of gravity of the machine room unit 6 to each of the suspension points are substantially equal and the center G of gravity is positioned within a region enclosed by virtual straight lines connecting each of the suspension points 21a, 21b, 21c. When viewed from a virtual horizontal plane over a working platform 5, the respective suspension points 21a, 21b, 21c of the machine room unit 6 are positioned outside a contour of the working platform 5.

The present invention includes machine room unit hoisters 9a, 9b, 9c by which a machine room unit 6 is suspended from a support member provided in a hoistway so as to be movable in an ascending/descending direction. The machine room unit hoisters 9a, 9b, 9c suspend the machine room unit 6 at suspension points 21a, 21b, 21c. The machine room unit hoisters 9a, 9b, 9c are provided, supported by the support member. When viewed from a virtual horizontal plane over the machine room unit 6, distances from a center G of gravity of the machine room unit 6 to each of the suspension points are substantially equal and the center G of gravity is positioned within a region enclosed by virtual straight lines connecting each of the suspension points 21a, 21b, 21c. When viewed from a virtual horizontal plane over a working platform 5, the respective suspension points 21a, 21b, 21c of the machine room unit 6 are positioned outside a contour of the working platform 5.

The disclosure relates to a lift installation having a lift car which can be moved along a guide rail. The lift installation here comprises at least a first pair of rollers and a second pair of rollers. The guide rail runs between the two rollers of the first pair of rollers and between the two rollers of the second pair of rollers. The lift installation also has an apparatus for subjecting the lift car to a retaining force, wherein there is a horizontal offset between the point at which the retaining force takes effect and the center of gravity of the lift car, and therefore the lift car is subjected to a first torque.

An incline elevator system includes a pair of laterally spaced rails and a carriage configured with restraining members extending laterally beneath a bottom surface of the rail in a vertically spaced relationship therewith. A rail kit, together with methods of assembling the elevator system, is also provided. A modular deck system includes a plurality of box treads arranged in an array and a plurality of stanchions supporting the array. Methods of assembling the array of box treads are also provided.

An incline elevator system includes a pair of laterally spaced rails and a carriage configured with restraining members extending laterally beneath a bottom surface of the rail in a vertically spaced relationship therewith. A rail kit, together with methods of assembling the elevator system, is also provided. A modular deck system includes a plurality of box treads arranged in an array and a plurality of stanchions supporting the array. Methods of assembling the array of box treads are also provided.

A modular sill assembly includes a top layer, a bottom layer, a first fastener, and a second fastener. The top layer includes a first top plate and a second top plate. The first and second top plates define a door channel therebetween. Each of the first and second top plates includes a top surface, a bottom surface, and a blind bore. The blind bore is defined in the bottom surface and extends towards the top surface. The blind bore is threaded. The bottom layer includes a first base plate that defines a through bore. The first fastener extends through the first base plate and is threadably received in the blind bore of the first top plate to secure the first top plate to the first base plate. The second fastener extends through the first base plate and is threadably received in the blind bore of the second top plate to secure the second top plate to the first base plate.