Apparatus and method for slip casting for ceramic objects
OwnerChristine P. Stokesinventor
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Abstract
A method of slip casting for the manufacture of ceramic items, wherein the wall thicknesses are accurately determined by providing confined slip pool samples which visibly solidify on an external portion of the plaster of paris mold being used. The solidification of the sample is indicative of the moist wall thickness of the object being molded, when the mold is decanted at that instant of still liquid slip.
Claims4
An apparatus for successively slip casting hollow ceramic objects, the walls of successive ones thereof being consistently of a single preselected thickness, said apparatus comprising:
- a mold having a body of plaster of paris with a cavity therein defining the exterior surface of the object, the body of the mold having an exterior surface with an upwardly facing horizontal portion;
- a quantity of liquid slip at least sufficient for casting a desired number of objects;
- and
- means for successively confining visible liquid pool samples of unvarying thicknesses upon a selected area of the upwardly facing horizontal portion of the body surface.
An apparatus for successively slip casting hollow ceramic objects, the wall of successive ones thereof being consistently of a single preselected thickness, said apparatus comprising:
- a mold having a body of plaster of paris with a cavity therein defining the exterior surface of the object, the body of the mold having an exterior surface with an upwardly facing horizontal portion;
- a quantity of liquid slip at least sufficient for casting a desired number of objects;
- an assemblage of slip sample pool dams of various individual thicknesses;
- each comprising
- a body of water impervious material of constant vertical thickness having a sample receiving perforation vertically therethrough, said body having a bottom surface adapted to rest upon the selected area of the mold body.
Dependencies are inferred from the claim text.