Tower Bridge Machinery                                      Cable with wheel system

The original raising mechanism was powered by

pressurised water stored in several hydraulic accumulator.

 

 

 

Gear System

Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating more quickly. Although the larger gear is rotating less quickly, its torque is proportionally greater.

     

                                                                           

                                                

Transmission with (4) gears                        Elevator being pull by cables

    

                      

 

Truss Bridge