EXHIBIT ENGINEERS · ZIGONG, CHINA

VIDEO DEMONSTRATION 0:49

Pulley lift chairs — freestanding configuration — physical demonstration

Physical exhibit demonstration

Fundamental science0:49 · Company footageActual frame from this video

Watch the movement.

Pull a rope to raise a seated platform and compare the different pulley arrangements.

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A TEXT GUIDE TO THE VIDEO

Look at the action.
Understand the reference.

Multiple supporting rope sections can reduce the ideal pulling force while increasing the distance of rope that must be pulled. Friction and the installed mechanism affect the actual effort.

01 / VISUAL DESCRIPTION

Use one designated chair

Use one designated chair according to its seating and load instructions.

02 / VISUAL DESCRIPTION

Pull the rope as instructed

Pull the rope with the approved method and observe the guided chair travel.

03 / VISUAL DESCRIPTION

Compare the labelled pulley ratios

Compare another labelled arrangement using the same operating rules.

This guide describes the visible action. The final performance and operating specification are agreed for the project.

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