Machine for making concrete pipes in upright position

Details Machine for making concrete pipes in upright position Machine for making concrete pipes in upright position

1976-09-21

1978-01-10

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

425432, B28B 302, B28B 2150

Patent

active

040676790

ABSTRACT:
In a concrete pipe moulding machine comprising a rotationally vibrated core and an outer mould, deficiencies may occur especially in the upper ends of the moulded pipes due to rather vigorous relative movements between the core and the outer mould. Means are provided to moderately reduce these relative movements by neutralizing the tendency of the outer mould to perform a rocking motion caused by the transmission of the rotating vibration forces via the moulding material onto the outer mould.

REFERENCES:
patent: 3119165 (1964-01-01), Gourlie
patent: 3177554 (1965-04-01), Larkfeldt
patent: 3201843 (1965-08-01), Osweiler
patent: 3273216 (1966-09-01), Gourlie
patent: 3696182 (1972-10-01), Joelson

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