The four bar linkage is a type of mechanical linkage that is used in many different devices. A few examples are: locking pliers, bicycles, oil well pumps, loaders, internal combustion engines, comp… ...

A lever mechanism is made up of a length of wood, metal or other material. It turns around or is supported by a pivot point, called a fulcrum. If we put the load we want to lift at one end of the ...