Here is another example of a Lifter using a rack and pinion method to position and hold the carriage of a Lifter as it is tilted up its vertical support. A previous version was first shown earlier here Sliding Pinion.

I modified the placement of the pinions in this new design by placing them at the end of fulcrum support arms. The fulcrum support arms are located at the fulcrum positions along the base of the carriage and are free to move as the carriage is tilted. Each tilt pushes the pinions resting on the rack projections up along the vertical support.

In the video you can see that this lifter, like most, is designed for two people to operate. The tilt arm is easily made longer if needed to add additional mechanical advantage for reducing the effort needed to tilt.

This image below shows the light produced by the two satellite lamps seen in the video.

Rack and Pinion Lifter