3x3 Table
 
 
 
 
 
 
 
 
 
 
 
 
 
3x3
 
Belt and Pulley
Gears
Hydraulics
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A Hydralic System, one
Bridge 1
N/A
 
 
N/A
 
on each side, lifts the road.
 
 
 
 
 
 
 
 
 
 
 
 
A belt and pulley are used
Gears are used to pull the
 
 
 
Bridge 2
to lift a portion of the road.
 
belt.
 
 
N/A
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A belt and pulley are used
Gears are used to pull the
 
 
 
Bridge 3
to pull two portions of
 
belt.
 
 
N/A
 
 
 
 
the road.