Static molds – Uniting preform with molding material – Including means other than mold surface to support preform
Patent
1980-09-03
1981-10-27
Hoag, W. E.
Static molds
Uniting preform with molding material
Including means other than mold surface to support preform
52122, 52125, 249 95, 249 97, 249177, 249178, 249185, 264259, 264233, 294 89, 425111, B28B 704, B28B 730, B28B 716
Patent
active
042969093
ABSTRACT:
In order to form in a concrete body during casting thereof a part-spherical recess around the head of a pickup bolt having a stem embedded in the body, an apparatus is employed comprising a pair of like elements each having an outer surface complementary to a respective half of the inner surface of the recess. These elements are formed with respective halves of a seat that complementarily surrounds the bolt head and the stem in the recess. A bridge is provided with a pair of pivots that define pivot axes for the respective elements, and a manipulating member is rigidly connected to this bridge.
REFERENCES:
patent: 822769 (1906-06-01), Quist
patent: 2748646 (1956-06-01), Harold et al.
patent: 3499676 (1970-03-01), Haeussler
patent: 3605361 (1971-09-01), Howlett et al.
patent: 3632724 (1972-01-01), Hilgeman
patent: 3676031 (1972-07-01), Stinton et al.
patent: 4087947 (1978-05-01), Turner
patent: 4173367 (1979-11-01), Haeussler
patent: 4179151 (1979-12-01), Tye
Hoag W. E.
Ross Karl F.
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