| 摘要 |
The equipment comprises a frame (1) and two supports (11, 13) which are arranged above one another and are guided by the frame to be vertically displaceable and which can be locked in various positions. The upper spport is provided with an hydraulic device for the displacement of a pressing and/or traction member and to generate pressure an/or traction. The two supports are interconnected by at least one pulley-block-like or cable-winch-like arrangement (21) such that they, at least partially, counter-balance one another. Therefore, when they are not locked in position they can be raised and lowered by hand relatively readily, whereby the two supports in each case move in opposite directions.@(Dwg.No.1)@
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