Pressure riveting unit for one side riveting

Abstract From the Canadian patent

A fluid pressure operating riveting tool comprising a tubular main body at the end of which is provided a working cylinder of which the lower end defines a fork. A riveting head is mounted at the lower end of the fork legs for rotation about an axis transverse to the legs. This head has a pair of coaxial arms each having a pull mandrel intended to receive a hollow rivet and each slidably supported axially of one of the arms. A piston is slidably received in the working cylinder and has a piston rod that extends through the main body and across both of its ends. The piston is resiliently pressed against the lower end of the main body in an inoperative position. The operating handle of the …