Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Plural wear or shaping surfaces mounted for alternative use
Patent
1985-12-27
1987-11-24
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
Plural wear or shaping surfaces mounted for alternative use
425186, 425195, 425253, 425259, 425361, 425407, 425413, 425421, 425436R, 425441, 425447, 425456, B28B 2116, B28B 2124
Patent
active
047086211
ABSTRACT:
A machine for making concrete pipe in which multiple-form sets can be coupled into one module so as to increase production output of the machine without an increase in machine manpower. The multiple-form modules are provided with adapters that make them compatible with conventional single-mode form sets and all cycles of production so that multiple-form modules can be used simultaneously with single-mode form sets. The multiple-form sets also utilize core vibration throughout the fill cycle, but unlike conventional core vibration systems, the amplitude and direction of vibration are continuously varied to distribute the vibration uniformly throughout the length of the pipe being formed.
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Schmidgall Hartzell H.
Schmidgall Jon A.
Hawkeye Concrete Products Co.
Hoag Willard E.
Nemmers James C.
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