Static molds – Mold including core and means to remove core
Patent
1980-05-02
1981-06-23
Flint, Jr., J. Howard
Static molds
Mold including core and means to remove core
249 68, 425406, 425411, 425412, 425414, 425422, 425423, 425457, 425589, 425444, 4254501, 4254513, B29D 1022
Patent
active
042746175
ABSTRACT:
A mold has at least two primary mold parts movable in a primary direction away from each other from a closed position defining a mold cavity to an open position, and at least one secondary mold part which may be a core pin or a stripper which is movable in the secondary direction transverse to the primary direction relative to at least one of the primary mold parts. An actuator has a primary rack extending parallel to the primary direction and a secondary rack extending parallel to the secondary direction and secured to the secondary mold part. These racks have respective primary and secondary rows of teeth having substantially parallel tooth flanks inclined to the respective directions, the primary row meshing with the secondary row. One of the racks is secured to one of the primary mold parts for joint displacement therewith in the primary direction relative to the other of the racks so that the secondary rack will automatically be moved in the secondary direction as the primary rack is moved in the primary direction.
REFERENCES:
patent: 1335525 (1920-03-01), Patterson
patent: 1958199 (1934-05-01), Morin
patent: 2253651 (1941-08-01), Ring
patent: 2718032 (1955-09-01), Harvey
patent: 2783502 (1957-03-01), Abplanalp
patent: 2834988 (1958-05-01), Morris
patent: 3074113 (1963-01-01), Specht
patent: 3134142 (1964-05-01), Conner
patent: 3387323 (1968-06-01), Wyllie et al.
Flint, Jr. J. Howard
Hasco-Normalien Hasenclever & Co.
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