Casing for a machine, with several parallel screws, for treating

Details Casing for a machine, with several parallel screws, for treating Casing for a machine, with several parallel screws, for treating

1979-10-15

1982-01-05

Jones, Jr., James L.

Metal working

Method of mechanical manufacture

Assembling or joining

29445, B21D 3902

Patent

active

043086551

ABSTRACT:
A casing for the n intermeshing screws of a treatment machine has an internal wall comprising n adjacent cylindrical sectors each subtending an angle A, having a radius r, and covering one screw over that part of the periphery which is outside the penetration zone of the screws. The casing is made from n shells, each of which has an internal face in the form of a cylindrical sector of radius r and subtending an angle B, which is less than A, and n guide bars, each of which possesses two concave faces forming a V and which are in the form of cylindrical sectors of radius r and subtending an angle ##EQU1## and the axes of which are parallel and spaced apart by a distance e equal to the distance between the axes of the screws. Each shell is fixed to two guide bars in such a way that its axis coincides with the axes of the corresponding concave faces of the said guide bars.

REFERENCES:
patent: 2550226 (1951-04-01), Colombo
patent: 3745854 (1973-07-01), Haag et al.

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