Screw comprising a plurality of hollow screw components juxtapos

Details Screw comprising a plurality of hollow screw components juxtapos Screw comprising a plurality of hollow screw components juxtapos

1975-06-11

1979-09-11

Phillips, Charles E.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

B29B 106

Patent

active

041673395

ABSTRACT:
A screw, particularly an extruder screw for rubber or plastics materials, comprising a plurality of hollow screw components juxtaposed in end-to-end relation, a coupling sleeve disposed over the or each joint between two adjacent screw components, each end of each screw component which is joined to another screw component having axially extending external splines on an external face thereof and the or each coupling sleeve having axially extending internal splines on an internal face thereof to engage with the external splines on the ends of the screw components to secure the screw components and the coupling sleeve or sleeves against relative rotation, and means, preferably a bolt coupling end members of the screw, to secure the screw components and coupling sleeve or sleeves against relative axial movement.

REFERENCES:
patent: 2946089 (1960-07-01), Heston
patent: 3239882 (1966-03-01), Yokana
patent: 3305894 (1967-02-01), Boden et al.
patent: 3509601 (1970-05-01), Johansson
patent: 3588154 (1971-06-01), Voight et al.
patent: 3690623 (1972-09-01), Boyne

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