| 摘要 |
An inexpensive portable pneumatic press which is intended primarily for compressing mechanical or electric connecting elements of electric conductors, cables and the like, in which a ram is driven by one or two cylinder-and-piston units extending transverse to the ram by means of at least one pair of toggle arms which are moved with an equal force toward each other. When the ram approaches its final compressing position, the toggle arm acts upon a control member which shifts the control valve to its venting position.
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