I looked online and came up with real quick answers to your problems.
You know a lever would have to be awful long to be able to lift that height.
On the first web page is a Rigging supply.
You could use a chain hoist like the ones they sell.
You could rent that equipment or fabricate it yourself with pulleys and
The 2nd web page is the actual "fulcrum formula"
I just looked up fulcrums and lifts......
Material lifting (building construction)
I have used cranes and if a person is set up, many loads can be lifted at a
This lever calculator will determine the force required for equilibrium with
the known forces and length.
F x L = W x X
F = (W x X)/L
lever1.gif (1928 bytes)
(W) Total Load (lbs/kg)
(L) Length from Fulcrum (in/mm)
(X) Length to Fulcrum (in/mm)
How Much Force is Required?:
"richard" wrote in message
By a lifting system, I mean one in which an arm is mounted upon a stand and
counterweights allow the simple movement to make it rise in a circular
What I'm looking to do is lift up to perhaps a thousand pounds of wood up
to 40 feet high. I just want to know if there are any web sites which
discuss the math behind this.
Somebody once said, "Give me the proper fulcrum and I'll move a mountain!"
Or something to that effect.