Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1975-01-17
1976-07-27
Husar, Francis S.
Metal founding
Means to shape metallic material
Pressure shaping means
164343, 425247, B22D 1704
Patent
active
039714322
ABSTRACT:
To move the die parts and cores into position for a casting operation, a plurality of pneumatic cylinders are mounted between two parallel plates of the head of a casting machine and arranged so that they each move a different one of a plurality of die parts and cores of a die from any of several angles, exerting primarily tension on the plates rather than torsion, with each cylinder including an internal locking mechanism having locking balls that drop into holding grooves to hold the piston of the hydraulic cylinder in position with sufficient strength to withstand the pressure of the molten metal applied to the die. To inject the molten metal into the die, a nozzle spool is moved in a straight line to communicate with the interior of the die between two die parts, the molten metal being fed to an annular recess around the spool by an injector and from the annular recess through openings in the spool into a central conduit that communicates with the interior of the die.
REFERENCES:
patent: 1002325 (1911-09-01), Sigurdsson
patent: 1011718 (1911-12-01), Barber
patent: 3433292 (1969-03-01), McDonald
patent: 3547184 (1970-12-01), Kock et al.
patent: 3596708 (1971-08-01), Lapin
Carney Vincent L.
Husar Francis S.
Roethel John E.
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