Molding device for shaping concrete parts

Details Molding device for shaping concrete parts Molding device for shaping concrete parts

1986-04-24

1988-04-12

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

249102, 249177, 425432, 425456, B28B 2116

Patent

active

047370947

ABSTRACT:
A molding device includes a mold core provided with a centering ring which is insertable on an inner centering ring attached to a core jarring machine. To clamp the centering rings one to the other, there is provided a hydraulic clamping device in the form of an elastic ring segment which is an integral part of one of the centering rings and adjoins a pressure chamber communicating with a source of hydraulic liquid. When pressure in the chamber is increased, the ring segment is elastically deformed and clamps the opposite ring.

REFERENCES:
patent: 4168917 (1979-09-01), Mukhin et al.

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