Metal founding – With product severing or trimming means
Patent
1975-11-10
1977-03-22
Gilden, Leon
Metal founding
With product severing or trimming means
164303, 164343, B22D 11126, B22D 1726
Patent
active
040131165
ABSTRACT:
A die casting machine is described and includes a frame supporting two pairs of spaced, parallel cylinder assemblies with each pair of assemblies carrying a mold half and being opposed to the other pair of assemblies which carry the other mold half. Each cylinder assembly of each pair comprises a stationary piston secured to the frame; a piston shaft secured to and co-axial with the piston, the shaft extending across to a connection with an opposed piston of the other pair; and a cylinder is mounted on the piston and shaft for reciprocal movement thereon in response to fluid injected therein on either side of the piston. Means connect the cylinder to their respective mold halves whereby injection of fluid into the cylinders at the crown ends of the pistons forces the two pairs of cylinders and two mold halves together and fluid injection at the skirt ends of the pistons forces the cylinders and mold halves apart. The terminal forces from opening the two pairs of cylinders are taken by the two parallel piston shafts.
REFERENCES:
patent: 295159 (1884-03-01), Fitts et al.
patent: 2521520 (1950-09-01), Jancura
patent: 2790217 (1957-04-01), Tyler
patent: 3118196 (1964-01-01), Hall et al.
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