US259282A - Crucible - Google Patents

Description

(No Model.)

J, BAVIER. GRU'QIBLE.

No. 259,282. Patented June13, 1882.

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JOHN BAVIER, OF NEWARK, NEWV JERSEY.

CRUCIBLE.

SPECIFICATION forming part of Letters Patent No. 259,282, dated June 13, 1882,

- Application filed Marcli14,1882. (No model.)

To all whom "it may concern:

Be it known that I, JOHN BAVIER, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Grucibles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to more effectually prevent the fluxes or impurities which gather upon the top of the molten metals from flowing out of the crucible with the metals in to the molds or other receptacles into which the same are poured, thereby greatly facilitating the process of separating the dross or impurities from the metals, thus preventing waste and saving time.

It has been the practice heretofore, as a rule, to pour the molten materials directly over the top or edge of the crucible or through the open lips or spout thereof, and in some cases to prevent the fluxes from passing out with the melten materials by means of a sort of spoon or blade held and manipulated by the hand, which process is very tedious and imperfect in its results. Besides, in removing the fluxes back, and so exposing the surface of the molten materials, the latter are rapidly cooled, and an additional skin or scum immediately forms every time the operation with the said spoon is performed; hence a waste of both time and material. These difticulties are overcome by my invention, which consists in providing the crucible with a permanent semicover or guard at the top to automatically prevent the overflow of the fluxes at the top, and also in the otherwise peculiar construction, combination, and arrangement of -the several parts, as will be hereinafter more particularly described, and finally pointed out in the claims.

In the drawings hereto annexed, Figure l is a side elevation of a crucible embodying my improvement. Figs. 2 and 3 are respectively a vertical transverse section and a top or plan view of the same. Fig. 4 is a top or plan view, illustrating the improvement in a modified form; and Fig. 5 is a vertical transverse seei tion of the same, taken through line 3 similar ering the top, as indicated at (Z in Figs. 2, 3, 4,

and 5, to automatically prevent the fluxes or impurities gathered upon the top of the melted materials from passing off when the crucible is tilted to pour out its contents, and as the latter enter the spout through the perforation c at a point near the bottom it is manifest that said contents cannot mingle with the dross or impurities collected upon the top, butmust be perfectly pure and clean.

In the construction of the crucible it will be found advantageous for some purposes to have it made in an angular form, as indicated in Figs. 4 and 5., so that the contents may be poured o ei the;throughttheaspout a and W. new strame erehy er, when strainin g is not retitttiof desired figomfiithenoftheo-penwspouts 6 formed by the intersecting walls, as indicated in Fig. 4.

The crucible may be angular at the top and round, or approximately so, at the bottom, if

cover to automatically prevent the contents from flowing over the top, as in the present case, so that great care and watchfulness are required in consequence of constant danger of the fluxes either flowing through the spout or over the top, as will be apparent. I am also aware that for the manufacture of glass crucibles have been made with a spout connected by a channel at the bottom with the inside or body of said crucibles, and also with a cover to protect the contents from the flames; but in all such cases the tops or outlets of the spouts are of necessity below the tops of the cruci- 5 bles, so that their contents will flow from the spouts without the crucibles being tilted, the latter remaining stationary, and the covers have holes through which the materials are in- \,troduced into the crucibles. I do not there- 5 fore claim either of these features, broadly but,

Having thus described my invention, what I claim, and wish to secure by Letters Patent of the United States, is-

1. As an improved artlcle of manufacture, a

5 crucible composed of the body I), spout a, channel c, and semi-cover or top wall, d, extending In testimony that I claim the foregoing I 25 have hereunto set my hand this 22d day of February, 1882.

JOHN BAVIER.

Witnesses:

OLIVER DRAKE, M. C. CRANE.

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