lately it is quite common in industries as well
as households the use of different kind of ladders so as
to provide required elevation from the ground surface
and for this they might depend on various power source
available. The journal presents equipment that requires
no source of power, batteries or electricity input for
their functioning. It simply works on gear mechanism
under manual operation. They provide an effective
alternative for step ladders and buildup scaffoldings.
They are suitable for various ranges of applications
such as cleaning, constructions and maintenance works.
Keywords : Rack and pinion, Worm gear box