Rack lift
From Infogalactic: the planetary knowledge core
Lua error in package.lua at line 80: module 'strict' not found. A rack lift is a type of elevator which consists of a cage attached to vertical rails affixed to the walls of a tower or shaft and which is propelled up and down by means of an electric motor which drives a pinion gear that engages a rack gear which is also attached to the wall between the rails.
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