FIELD: mechanics.
SUBSTANCE: invention relates to hauling and lifting mechanisms. The hoist consists of a flexible element and pulling unit moving along the said flexible element. The pulling unit consists of two parts. Both parts of pulling unit are provided with stoppers, which provide for pulling unit moving along the hoist only in one direction. The parts of pulling unit are coupled with power unit (either electrical or pneumatic), which brings together and moves apart one-by one the parts of pulling unit. As a result the pulling unit moves along flexible element.
EFFECT: energy applied to hoist is converted into forward motion.
11 cl, 3 dwg
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