Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Of varying cross-sectional area or with intermittent...
Patent
1977-05-02
1978-03-07
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Of varying cross-sectional area or with intermittent...
156137, 156138, 156140, 156245, 156297, 156306, 156324, 264171, 264248, 264251, 264254, 264257, 264259, 264296, B29H 501, B29H 722, B29C 302
Patent
active
040780325
ABSTRACT:
A method and apparatus for fabricating continuous lengths of cleated belting. The method includes the steps of feeding a continuous length of belting base material alternately forwardly with or over and backwardly with, a cleat positioning mold first into, then out of and then through the space between vertically moveable press platens. The cleats are assembled with and cured to the base material in longitudinally adjacent groups. Each group of raw cleats and a corresponding section of the base material is moved with the mold forwardly into the press, cured, and then moved rearwardly with the mold out from between the press platens. The cured section is separated from the mold. A new group of uncured cleats is positioned for a succeeding section. The base material, including the cured section, is moved forwardly relative to the mold until the last cured cleat of the group of cured cleats is positioned at the first of the cleat positions of the mold. This moves the succeeding section of the base material over the mold and the raw cleats. The mold, the new group of raw cleats and the succeeding section of the base material then are moved into the press for curing with the preceding cured section being moved beyond the press.
The apparatus comprises the press, the moveable mold, the mechanisms for reciprocating the belting base and the mold and mechanism for separating molded sections sequentially in order to carry out the process.
REFERENCES:
patent: 2718030 (1955-09-01), Collins et al.
patent: 2859477 (1958-11-01), Millhoff
patent: 3482004 (1969-12-01), Anderson
patent: 3860684 (1975-01-01), Vance
patent: 3895895 (1975-07-01), Marker
patent: 3897291 (1975-07-01), Hoback et al.
Hoag Willard E.
Leonard Henry K.
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