Static molds – Uniting preform with molding material – Including means other than mold surface to support preform
Patent
1978-02-15
1980-10-21
Silbaugh, Jan H.
Static molds
Uniting preform with molding material
Including means other than mold surface to support preform
249120, 249122, 249129, 249131, 249137, 249160, B28B 708, B28B 718, B28B 724
Patent
active
042289858
ABSTRACT:
A mold bed having a number of longitudinal mold cavities is surrounded by a reinforcement structure which permits the mold bed to be handled as a unitary product. Mold cavities have removable end walls, one at each of opposite ends, to promote releaseability of the product from the mold cavities once they are removed. The mold cavity has a trunnion, one at each of opposite ends of the mold body so that the mold body can be rotated from an upright position when it receives the concrete in the mold cavity to an upside down position whereby the products are removed of their own weight. Two transverse spaced channel straps extend across the open face of the cavity so that when the mold bed is turned upside down, the molded parts are held temporarily by the mold straps, which are then released by unbolting their connections with the mold bed. A fork-lift truck removes the molded parts ater the mold straps are removed. Cores are formed by inserts which extend through openings in the channel straps and are aligned with openings in the bottom of the cavities which promote release of the cores.
A removable positioning means locates reinforcement rods at a proper location within the cavity during a pour. After the pour, the positioning means are then removed and the rod remains in place.
REFERENCES:
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patent: 884931 (1908-04-01), Keogan
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patent: 1166770 (1916-01-01), Latham
patent: 1968189 (1934-07-01), Bartels
patent: 1984564 (1934-12-01), Blackmann
patent: 2060246 (1936-11-01), Russell
patent: 2190801 (1940-02-01), Otto
patent: 2979801 (1961-04-01), Gasmire
Gaudelli Edmond N.
Shepler Edward E.
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