Plastic article or earthenware shaping or treating: apparatus – Female mold including tamping means or means utilizing mold... – Means to rotate female mold about horizontal axis
Patent
1980-03-07
1981-06-30
Derrington, James H.
Plastic article or earthenware shaping or treating: apparatus
Female mold including tamping means or means utilizing mold...
Means to rotate female mold about horizontal axis
425 35, 425211, B29C 504
Patent
active
042760127
ABSTRACT:
A centrifugal casting machine (20) has a first rotatable shaft (33) and a second rotatable shaft (45) as well as a rotatable core member (100) having a central opening, with at least one of these shafts being adapted for reciprocal movement so as to extend into the core member central opening and adjacent to the other one of the shafts (33) and (45). First (73) and second (83) mold halves are located on opposite sides of the core member (100) and each is adapted to move inwardly and outwardly between open and closed positions. The mold halves (73) and (83) are rotatably supported on bearing means (75) and (85) and in closed position are adapted to rotate with the core member (100) and define a cavity (128) in combination therewith. The improvement takes the form of the addition of mold isolator means (130) and (132) between the bearing means (75) and (85) and the mold halves (73) and ( 83). The isolator mechanisms (130) and (132) serve simultaneously as torque couplings, clamping force transmitters, misalignment adjusters, vibration dampers and thermal expansion providers.
REFERENCES:
patent: 3611506 (1971-10-01), Schroeder
patent: 3918864 (1975-11-01), Braun
patent: 3924982 (1975-12-01), Yang
patent: 4035118 (1977-07-01), MacMillan
patent: 4083672 (1978-04-01), Vaishnav
patent: 4133622 (1979-01-01), Braun
Derrington James H.
The Firestone Tire & Rubber & Company
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