Machine for screwing pipes together has counter-clamp attached to plate pivoted on pendular supports whose opposite ends are pivoted on swing arms connected by tube attached to frame and whose opposite ends are attached to spring retainers

摘要

The machine for screwing pipes together has a rotating hydraulic clamp and a hydraulic counter-clamp (5). This is attached to a plate (28) pivoted on two vertical pendular supports (29) whose opposite ends are pivoted on two swing arms (31) connected by a tube whose ends are attached to the machine frame by bearing pins (33) and whose opposite ends are attached to spring retainers (36).