Metal founding – Means to shape a forming surface – Including means for compacting particulate fluent mold...
Patent
1974-11-26
1976-07-13
Husar, Francis S.
Metal founding
Means to shape a forming surface
Including means for compacting particulate fluent mold...
164207, B22C 1530
Patent
active
039688305
ABSTRACT:
Foundry molds may be compressed and vibrated between a vibration table and a presser plate within apparatus which is structured to enable connection of the vibration table and the presser plate as a rigid frame during the compression and vibration process. The coupling means forming the rigid frame include locking means which may be actuated between a locked and an unlocked position whereby a gap may be formed when the coupling means are in the unlocked position to enable foundry molds to be swung in place by horizontally extending arms to effect location of the foundry molds between the vibration table and the presser plate. Damper means are also provided which damp and limit the movement of the presser plate and its associated pressure applying means in both an upward and a downward direction. In one embodiment the coupling means may comprise a vertically displaceable rod which may be actuated between a locked and an unlocked position between the presser plate and the vibration table, while in a second embodiment a swiveled lever involving a tongue-in-groove arrangement may perform the locking and unlocking function.
REFERENCES:
patent: 867104 (1907-09-01), Bonvillain et al.
patent: 1387942 (1921-08-01), Pettersson
patent: 1676201 (1928-07-01), Wood
patent: 1890933 (1932-12-01), Bullock
patent: 2892223 (1959-06-01), Buhrer
Brown John S.
Husar Francis S.
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