MOVEMENT DESIGNS

PULLEY SYSTEM DRAW BRIDGE

As the screws rotate they either pull or release the wires which work with

the pulley system to raise or lower the road bed.

RETRACTABLE ROAD BED WITH GEARS

As the gears rotate the teeth grab the teeth in the road bed and either

push or pull it into place.

HINGED FOLDING ROAD BED WITH A SERIES OF GEARS

The large gear rotates controlling the retractable bar with teeth on each side.

as the teeth pass through the sets of gears the road bed is rotated around a

hinged corner.