Metal founding – Flask or flask section – Plural part flask or flask section
Patent
1974-11-22
1976-10-05
Husar, Francis S.
Metal founding
Flask or flask section
Plural part flask or flask section
294 67BC, 294 88, B22C 2108, B66C 110
Patent
active
039839265
ABSTRACT:
Foundry moulding boxes are automatically clamped together or to a supporting plate by means of loose clamps (as distinct from clamps which are permanently fixed to a moulding box or to an individual carriage supporting the boxes) which are spring loaded and are brought by combined preloading and moving devices into the region of the parts which are to be clamped by allowing the springs to relax and transmit the preload to those parts via abutment members of the clamps which engage therewith. The clamps are carried by respective stirrups which are pivotably attached to a mobile carriage running on rails to convey the clamps from an unclamping station to a clamping station where the clamps are left in clamping engagement with a pair of moulding boxes while the stirrups return with the carriage to remove the clamps from another such pair. The stirrups incorporate drives for preloading the clamps and opening up the gap between the abutment members. Part of the mobile carriage is movable by another drive for engaging the stirrups with the clamps, and disengaging them therefrom, after the stirrups have been swung into position by other drives provided on the carriage to cause pivotal movement of the stirrups.
REFERENCES:
patent: 1027695 (1912-05-01), Covert
patent: 1526765 (1925-02-01), Anderson
patent: 1734176 (1929-11-01), McCabe
patent: 1865380 (1932-06-01), Moore
patent: 2726429 (1955-12-01), Duncan
patent: 2984176 (1961-05-01), Sommer
patent: 3045300 (1962-07-01), Stuckey
patent: 3257142 (1966-06-01), Barry
Badische Maschinenfabrik GmbH
Brown John S.
Husar Francis S.
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