Plastic article or earthenware shaping or treating: apparatus – With factory structure feature
Patent
1988-04-29
1990-08-28
Housel, James C.
Plastic article or earthenware shaping or treating: apparatus
With factory structure feature
249 86, 264228, 425111, 425122, 425259, 425439, B28B 1500, B28B 2306
Patent
active
049521292
ABSTRACT:
A plant to manufacture elongated concrete elements, particularly railway sleepers of prestressed reinforced concrete. In the plant according to the invention, the forms for the production of said elements are supported on carriages sliding along parallel side-by-side tracks, and the operating machines designed to perform in succession a series of operations on said forms are positioned into a limited working area, housed inside a shed, and are mounted above said tracks, substantially fixed in respect of the longitudinal axis of the tracks but movable transversely thereto. The curing area for the concrete elements is arranged externally to the working area. In the case of prestressed reinforced concrete elements, the tensioning device for the reinforcement strands are mounted directly on each of said slidable carriages supporting the forms.
REFERENCES:
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patent: 2511761 (1950-06-01), Barber et al.
patent: 2655708 (1953-10-01), Eschenbrenner
patent: 3305907 (1967-02-01), Baker
patent: 3577610 (1971-05-01), Margolin
patent: 3825394 (1974-07-01), Pietrowiak
patent: 3994657 (1976-11-01), Minegishi
patent: 4061454 (1977-12-01), Borcoman
patent: 4242071 (1980-12-01), Stinton
patent: 4255104 (1981-03-01), Stinton
Housel James C.
S.C.A.C. Societa Cementi Armati Centrifugati SpA
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