Welcome to my first instructable.
Counter weight door system.
A theatrical counterweight system provides a simple mechanical method of raising and lowering various balanced loads by a system of pulleys and weight carriages.
An overhead door system employs counterweights which operate through cables connected to a drum which tapers from one end to the other so that the effective force acting on the door in the opening direction is reduced as the proportion of the weight of the door to be supported reduces.
In these applications the expected load multiplied by the distance.
As the scenery and equipment loads are varied the amount of counterbalance is adjusted on the weight carriage so that the system can be raised and lowered with a minimum amount of effort.
Its purpose is to make lifting the load more efficient which saves energy and is less taxing on the lifting machine.
The system is adjustable readily to accommodate different types of doors having different opening.
35 feet and wider doors are shipped with a weight counter balance system.
Counterweights are often used in traction lifts elevators cranes and funfair rides.
A counterweight garage door doesn t need a tracking system which reduces its maintenance and it operates on a simple remote control mechanism that sits to one side of the opening.
They are ideal when security is essential where noise or temperature control might be an issue where you need a minimal internal or external projection and.
I d like to apologize for any grammar or english errors becau.