Methods and apparatus for providing an adjustable balancing force are provided.
This mechanism can be used as a lifting force, a counter balancing mechanism or
as a horizontal or other force mechanism. A stand in accordance with an exemplary
embodiment of the present invention comprises a first component that is slidingly
coupled to a second component. A spring mechanism provides a balancing force between
the first component and the second component. In some advantageous embodiments
of the present invention, the magnitude of the balancing force is substantially
equal to a first load. In some advantageous embodiments, a friction force is provided
for resisting relative movement between the first component and the second component.