An illustrative example method of making a magnetic drive component includes inserting a plurality of metal teeth into a metal tube. The teeth respectively have a first portion received against an inner surface of the tube. The teeth respectively have a second portion and a third portion spaced apart and projecting toward a center of the tube. The method includes securing the plurality of teeth to the tube.

An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.

An elevator system includes a first elevator car (28) constructed and arranged to move in a first lane (30, 32, 34) and a first propulsion system (40) constructed and arranged to propel the first elevator. An electronic processor of the elevator system is configured to selectively control power delivered to the first propulsion system (40). The electronic processor includes a software-based power estimator configured to receive a first weight signal and a nm trajectory signal for calculating a power estimate and comparing the power estimate to a maximum power allowance. The electronic processor is configured to output an automated command signal if the power estimate exceeds the maximum power allowance.

An embedded safety elevator includes a van body, a motor, a battery, a driving wheel, a transmission rod, an embedded elevating device, and an inwardly concave spiral guide rail. The embedded elevating device is embedded in the guide rail and can move up and down along the guide rail; the embedded elevating device is fixed on the van body to drive the van body to move up and down, the motor and the battery are mounted on the van body and are connected with the driving wheel, the driving wheel is connected with the transmission rod, and the transmission rod is further connected with the embedded elevating device. The motor is started to drive the driving wheel to rotate, the driving wheel drives the transmission rod to rotate, the transmission rod transmits the power to the embedded elevating device for driving the embedded elevating device to spirally elevate.

A propulsion system includes a magnetic screw having a first magnetic element having a first polarity, the first magnetic element arranged along a first non-linear path along a longitudinal axis of the magnetic screw and a second magnetic element having a second polarity, the second magnetic element arranged along a second non-linear path along the longitudinal axis of the magnetic screw; a motor for rotating the magnetic screw about the longitudinal axis; and a stator made from a ferrous material, the stator having a body with an internal cavity, the body including a plurality of poles extending into the cavity, the poles arranged along a pole non-linear path along a longitudinal axis of the stator.

Described is a handling system, comprising a threaded bar, a nut configured to engage by screwing with said threaded bar and moving relative to said bar, said nut engaging with said bar by means of a plurality of spheres, said system comprising a plurality of skids for containing said spheres, said skids being positioned angularly distributed on said nut.

A braking system and method for an apparatus or vehicle moved along a pathway by a drive mechanism, for halting the movement of the apparatus or vehicle in the event that the drive mechanism loses power or malfunctions. A conveyance system is provided including a structure defining a pathway, an moving apparatus supported for movement along the pathway, a drive mechanism operatively connected for moving the apparatus along the pathway, a brake rail having along one edge a multiplicity of regularly spaced teeth that define gaps between successive teeth, disposed along the pathway and secured to the structure, and a brake device mounted securely to the apparatus. The brake device includes a driven rotor having a central axis of rotation and an outer cylindrical surface, and a helical thread on the outer cylindrical surface of the rotor for loosely engaging the gaps in the brake rail, the thread having a width and helical pitch whereby with successive turns of the driven rotor, the thread loosely engages successive gaps in the brake rail for movement of the rotor along the brake rail.

A device for lifting and lowering of loads in vertical shafts, in particular of containers with radioactive contents, is disclosed. This device comprises a load platform A, the load thereof being supported by at least four hollow spindles B1, B2, B3, B4 arranged symmetrically in a shaft and having a column-like structure. Each hollow spindle B1, B2, B3, B4 is assembled from individual identical modules C1, C2, C3, C4. Each module C1, C2, C3, C4 consists of a front part 1 and a rear part 2. The rear part 2 has multiple horizontal bores 3, by means of which both a firm anchorage with the shaft wall and a firm screw connection with the front part 1 is enabled. The front part 1 consists of two identical parts 4a, 4b that form on the front side a longitudinal slit 5.

The invention relates to a drive unit which comprises a motor (6)-driven spindle (5), rollers (2, 3), and cables (11), and which has a favourable transmission ratio, specifically N:1 in which N=4+n, and n is an integer between 2 and 8 including 0. Said unit is used to move loads and people, is particularly suitable for lifts, is space-saving, environmentally friendly, low-maintenance, economical in terms of energy consumption, and call be used both in the construction of new lifts and in the renovation of older installations. It allows the installation to be operated securely, and people and loads to be transported at high speeds. It can, for example, be installed at the lower or upper end of a shaft, or also outside of the shaft. It can be used for movement in a vertical, horizontal and also inclined direction, and may be provided with a counter weight.