Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1975-09-30
1976-06-22
Lazarus, Richard B.
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
4254519, B29D 2303
Patent
active
039648524
ABSTRACT:
The device is of a type including a multi-part hollow mold mounted in a closure assembly, having a frame and movable in a housing between a blow station and a plasticating unit, on relatively movable mold platens carried by two supporting bars extending below the hollow mold in the closure assembly. A locking mechanism is provided on the upper parts of the mold platens and comprises a locking bush firmly secured to one mold platen and a locking rod rotatably mounted in the other mold platen but fixed against axial displacement relative thereto. The locking rod has a lock head, designed as a symmetric hammer head, adapted to lockingly engage in the locking bush which has an opening conformable to the hammer head and formed with diametrically opposite catch webs, the hammer head having faces adapted to engage behind the catch webs upon rotation of the locking rod. The locking mechanism is located at the corner of a right triangle situated in the junction plane of the hollow mold and whose other corners are the axes of the two supporting bars, the right angle of the triangle being at the axis of that supporting bar which is the trailing supporting bar considered in the direction of movement of the closure assembly from the blow station toward the plasticating unit.
REFERENCES:
patent: 2319479 (1943-05-01), Ryder
patent: 2879545 (1959-03-01), Bailey
patent: 3877861 (1975-04-01), Kiefer et al.
Emil Korsch Spezialfabrik fur Komprimiermaschinen
Lazarus Richard B.
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