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04 Engineering

Engineering

The machinery and elevator arrangements shown in the catalog, with a plain explanation of what each arrangement does.

The machinery shown here is the machinery presented in the company's catalog. Manufacturer names are given for identification only; the catalog states no partnership, dealership or certification, and none is claimed.

Machinery

Elevator arrangements

Overhead machine

The machine sits in a room above the shaft and raises the car on ropes that run over the motor, balanced by a counterweight. It is a familiar, serviceable arrangement, but it needs a dedicated machine room above the shaft.

Components labelled on the diagram

Component names exactly as printed in English on the catalog diagram.

  • Control System
  • Geared Machine
  • Primary Velocity Transducer
  • Governor
  • Hoisting Ropes
  • Roller Guides
  • Secondary Position Transducer
  • Door Operator
  • Entrance-Protection System
  • Load-Weighing Transducers
  • Car Safety Device
  • Traveling Cable
  • Elevator Rail
  • Counterweight
  • Compensation Ropes
  • Governor Tension Sheave
  • Counterweight Buffer
  • Car Buffer

Source: product catalog, page 12

Overhead machine Cut-away diagram of the Overhead machine arrangement

Hydraulic machine

A hydraulic ram raises the car using oil pressure from a pump and tank, rather than pulling it from above on ropes. It suits lower rises and a small number of stops, and does not need a machine room at the top of the shaft.

Components labelled on the diagram

Component names exactly as printed in English on the catalog diagram.

  • Governor
  • Sheave
  • Piston and Piston Guides
  • Above-Ground Cylinders
  • Ropes
  • Fluid Tank / Controller
  • Car Buffer
  • Jack Stands

Source: product catalog, page 12

Hydraulic machine Cut-away diagram of the Hydraulic machine arrangement

Gearless machine

A gearless motor drives the traction sheave directly, with no gearbox in between, so travel is quieter and levelling more precise. Its compact size lets it sit inside the shaft itself on machine-room-less installations.

Source: product catalog, page 13

Gearless machine Cut-away diagram of the Gearless machine arrangement

Control systems

Page 15 shows control systems as photographs only, with no names, codes or specifications at all.

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Urgent Elevators

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