Chain driven roller system for use in concrete pipe manufacturin

Details Chain driven roller system for use in concrete pipe manufacturin Chain driven roller system for use in concrete pipe manufacturin

1997-05-28

2000-01-25

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Means withdrawing trowel type shaping member from within...

425427, B28B 2124

Patent

active

060172088

ABSTRACT:
A concrete pipe manufacturing machine movable in a mold for receiving a concrete mixture to form a tubular concrete wall includes a troweling cylinder assembly having a head plate. A vertically movable and rotatable drive shaft is fixed to the head plate for moving the troweling cylinder assembly in a vertical direction and in one rotational direction. A series of roller assemblies are rotatably mounted on the head plate and are adapted to be rotated by frictional contact with the concrete mixture in a direction counter to the one rotational direction of the drive shaft. A drive arrangement interconnects and collectively drives the roller assemblies together for preventing jamming of the roller assemblies due to material in the concrete mixture.

REFERENCES:
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patent: 3276091 (1966-10-01), Pausch
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patent: 4505658 (1985-03-01), Muller
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patent: 4957424 (1990-09-01), Mitchell et al.
patent: 5456590 (1995-10-01), Volmari
patent: 5616351 (1997-04-01), Wensauer

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