FIELD: the invention refers to pneumatic technique and may be used for pushing forward telescopic constructions of the type of mast and columns of high height without using lifting-transporting technique.
SUBSTANCE: the pneumatic cylinder has an elastic hose winded on a driving drum. The hose is provided with a pushing footstep bearing with an opening for feeding compressed gas and is leaning during the process of filling with compressed gas and moving from the driving drum on the driving supporting rollers locking the growing pole of gas for execution of the working move of the pushing footstep bearing with an effort equal to the gas pressure on the footstep bearing.
EFFECT: creation of a one-stepped pneumatic cylinder providing significant increase of the length of the move is achieved.
1 dwg
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