2. The lifting platform. It has 2 areas of concern.
a. The actual structure, the vertical posts would have to be strong
enough to lift the 800#. But since there are would be 4 verticals
then each one would only carry about 200# is the load is evenly
destributed. No big problem. Again 2x4s, 4x4s or steel.
Then some support across the center at the top for the actual lifting.
keep in mind that all the weight (800#) would be concentrated here.
So this will have to be strong!!!
b. The platform it's self. You could make the bottom frame that is
square or rectangular with some stringer across the length. Then
you could put something like plywood, 3/4" thick min. as a floor
so there weren't any gaps, if you rolled something onto it.
I think this would work easier if you really had a strong floor at the
lifting end. However, it could be offset so that you lifted to the outside
edge of say a mesaneen (sp)/balcony. This would require safety rails across
the outter edge of the balcony.
If you aren't going up an enclosed shaft, you'll also want some side rails
on the lifting platform, and a little lip around the floor, so the objects
don't slide off.
If you use a single lifting point, like the wench, the ballance of the load
would be more critical as will the reinforcements for the lifting point,
both to the lifting platform and the anchoring of the wench.
If you use multiple points to lift, you'll need a spool on the wench that
can handle the extra line. A 4 piont lift would be most stable, but require
the most line.
Don't know if this helps or give any ideas to those trying the project.
But if anyone does build it, please post some pictures and send us the
link. I'd love to see what/how you did it.
John
John T. Blair WA4OHZ email: jblair1948@cox.net
Va. Beach, Va
Phone: (757) 495-8229
48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V (B1106)
75 Bricklin SV1 (#0887) 77 Spitfire 71 Saab Sonett III
65 Rambler Classic
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