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US 4,289,293 AGranted
Combination bed concrete casting apparatus
AssigneeSpan-Deck, Inc.
InventorJerry L. Cashion
Life of this patent
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AssigneeSpan-Deck, Inc.
InventorJerry L. Cashion
Estimating the term…
PCT No. PCT/US79/00707 Sec. 371 Date Sept. 7, 1979 Sec. 102(e) Date Sept. 7, 1979 PCT Filed Sept. 7, 1979 PCT Pub. No. WO80/00673 PCT Pub. Date Apr. 17, 1980 A combination bed concrete casting apparatus (20, 122 or 200) which allows either a single relatively wider elongated slab (116 or 200) or at least two relatively narrower elongated slabs (46 and 48 or 206 and 208) to be manufactured. A casting bed is divided longitudinally along the bottom wall into sections (34 and 36 or 202 and 204) which are movable transversely relative to each other. An elongate removable intermediate form (44 or 214) is positionable between the casting bed sections in a generally parallel relationship with the side form walls to form an intermediate wall. When it is desired to cast a single concrete member (116 or 200) extending all the way from one side form wall to the other, the intermediate form (44 or 214) is removed and the casting bed sections are moved closely adjacent one another. Alternatively, if it is desired to manufacture a separate concrete member in each casting bed section, the intermediate form is positioned between the sections. The combination bed apparatus may be adapted for use in combination with either a fixed bed casting apparatus or a moving bed casting apparatus. The relative transverse movement of the casting bed sections may be accomplished either by moving both sections (34 and 36) away from a centerline, or moving one section (202) away from the other (204), which remains fixed.
A combination bed casting aparatus for casting either a single elongated concrete structural member in a single elongated casting bed section or for simultaneously casting two elongated concrete structural members in side-by-side parallel elongated casting bed sections comprising a longitudinally extending bottom wall form and oppositely disposed side wall forms, the bottom wall form being divided longitudinally into two supporting sections for supporting the structural member(s) to be cast, the two sections adapted to be positioned in abutting relationship to form with said side wall forms the single casting bed section and spaced from each other by an elongated intermediate wall form, first means for positioning said sections and second means for positioning the intermediate wall form between said two supporting sections and generally parallel to the side wall forms to form with each supporting section and an associated side wall form the side-by-side casting bed sections, said supporting sections and its associated side wall form being moveable transversely to the longitudinal axis of the casting apparatus wherein said second means comprises a lifting mechanism for pivotally positioning the intermediate form by the lifting mechanism in a first position below said moveable section when said two supporting sections are positioned in abutting relationship for forming the single casting bed section and in a second position above and between said supporting sections when said one of the two supporting sections and its associated side wall forms have been moved transversely to form the side-by-side casting bed sections.
A combination bed casting apparatus for casting either a single elongated concrete structural member in a single elongated casting bed section or for simultaneously casting two elongated concrete structural members in side-by-side parallel elongated casting bed sections comprising a longitudinally extending bottom wall form and oppositely disposed side wall forms, the bottom wall form being divided longitudinally into two sections for supporting the structural member(s) to be cast, the two sections adapted to be positioned in abutting relationship to form with said side wall forms the single casting bed section and spaced from each other by an elongated intermediate wall form, means for positioning said intermediate wall form between said two supporting sections and generally parallel to the side wall forms to form with each supporting section and an associated side wall form the side-by-side casting bed sections, said supporting sections and its associated side wall form being moveable transversely to the longitudinal axis of the casting apparatus, said means for positioning said intermediate wall form including an elongated actuator element disposed beneath said bottom wall and adapted for movement along the longitudinal axis of the casting bed and a plurality of swing arms extending laterally from the actuator element and being connected to said supporting sections, a plurality of lift arms extending upwardly and being connected to the intermediate wall form, first actuating means adapted to energized to move said actuator element, and second actuating means adapted means adapted to be energized to pivotally swing said intermediate form by said lift arms between a first position below said supporting sections while said two supporting sections are drawn into abutting relationship for forming the single casting bed section and a second position above and between said supporting sections while said supporting sections and their associated aide wall forms have been moved transversely to form the side-by-side casting bed sections.
Dependencies are inferred from the claim text.