Apparatus for casting

Details Apparatus for casting Apparatus for casting

1975-04-10

1976-11-09

Husar, Francis S.

Static molds

Container-type molding device

And an inner removable core to form recess or opening

249152, 249181, 249185, B28B 730, B22C 924

Patent

active

039906736

ABSTRACT:
Apparatus for casting concrete septic tanks, burial vaults and the like includes an inner form and an outer form. The inner form includes apparatus for positively locking the cover plate to the inner form as the walls thereof are expanded. The inner form, also, includes an improved mode for expanding same.

REFERENCES:
patent: 904900 (1908-11-01), Sheets
patent: 950567 (1910-03-01), Kesling
patent: 1016284 (1912-02-01), Meek et al.
patent: 1363651 (1920-12-01), Hutchins
patent: 2827683 (1958-03-01), Benart
patent: 2854725 (1958-10-01), Bast
patent: 3205552 (1965-09-01), Johnson

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