Powerful drum hoist plans scrap built lifts over 1 ton

What is for sale: Powerful drum hoist plans scrap built lifts over 1 ton

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With this homeade hoist, you can lift loads weighing over a ton. For each pound of pressure exerted on the handle there is an upward pull of 30 lbs. on the load. Construction is largely torch cutting and welding. Can be mounted to the bed of a truck or ????
FROM 1945, A 1 PAGE PLAN TO BUILD THIS ITEM.
Includes complete plans, construction article
ATTENTION: NEW INTERNATIONAL MAILING RATES!