FIELD: transportation.
SUBSTANCE: invention relates to lifting devices. To lift cargo, hydraulic jack is used, in which instead of liquid is used bitumen heated to fluid state, pumped by means of pump. After hardening, the bitumen is converted into a solid amorphous state for lifting the load. Then pump is disconnected.
EFFECT: broader functional capabilities when using a jack.
1 cl, 2 dwg
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Authors
Dates
2019-07-16—Published
2018-10-23—Filed