lift
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lift
Also called: elevator (US)
HB50
apparatus or contrivance within or attached to a building or structure, comprising a platform or car running between approximately vertical guides and used for the purpose of raising or lowering passengers and/or goods or materials
See also: lift
See also: lift
HB50
<electric> power lift, the machinery for which is driven by an electric motor that is mechanically coupled to hoisting mechanism
Electric lifts are suitable for high rise buildings and structures as they can be designed for high travelling speeds, and smooth acceleration and deceleration.
<hydraulic> lift that is moved by means of hydraulic power, such as a hydraulic ram (direct-acting hydraulic lift), or a hydraulic unit acting indirectly through ropes or chains (indirect-acting hydraulic lift)
Hydraulic lifts are usually slow-moving and limited in their (height of) travel.
<scaffolding> vertical distance from the supporting surface to the lowest ledger or level at which a platform can be constructed, or the vertical distance between adjacent ledgers or levels at which platforms can be constructed
<scissor> lift or lifting platform that is raised and lowered by a scissor-type mechanism
<scissor> lift or lifting platform that is raised and lowered by a scissor-type mechanism
Scissor lifts are limited in the height they can reach.
HB50
<wind> force acting at 90 degrees to the wind stream
See also: drag <wind>
See also: drag <wind>