Patent ID: 6371247
Filing Date: 2002-04-16
Classification: B66F

Abstract:
A lift assembly comprising:a first scissors section mounted on a base bar; a second scissors section pivotally connected to said first scissors section, arms of said second scissors section being pivotally connected to each other by a lift shaft; at least one intermediate scissors section pivotally connected to said second scissors section; an upper scissors section pivotally connected to an uppermost of said intermediate scissors sections and supporting a top bar; a first side plate upstanding adjacent the scissors sections and having therein an elongated slot defining an arc of a circle, the lift shaft being disposed in the slot; an upper pulley mounted proximate an upper end of said first side plate; and a strand extending to said upper pulley and thence to the lift shaft, whereby drawing said strand at an end remote from said lift shaft over said upper pulley draws the lift shaft upwardly in said side plate slot, to draw said second scissors section, and thereby remaining scissors sections, upwardly, to raise the top bar.