US977271A - Ladle for pouring molten metal. - Google Patents

Description

J. W. CALLAGHAN.

LADLE POE POURING MOLTEN METAL;

APPLIUATION FILED Iman, 1910.

977,271. 7 Patented N0v.29,191o.

WTNESSES INVENTOI? JAMES W. CALLAGI-IAN, F NEWARK, NEW JERSEY.

LADLE FOR POURING MOLTEN METAL.

Specicaton of Letters Patent.

Patented Nov. 29, 1910.

Application led February 11, 1910. Serial No. 543,341.

To all whom 'it may concern:

Be it known that I, JAMES IV. CALLAGHAN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain Improvements in Ladles for Pouring Molten Metal, of which the following is a specification.

This invention relates especially to those ladles which are employed in casting steel and are adapted to contain from five to fteen tons of molten metal, and more particularly the present improvements pertain to the stopper or closure by which flow of the metal from said ladle into the molds is controlled.

The objects of the invention are to locate the stopper or closure upon the outside of the ladle, and to operate it by means wholly outside the ladle; to avoid the necessity of a stopper or closure and operating means therefor submerged in the molten metal, and the danger of such operating means burning off so that the metal cannot be poured; to save waste of metal, and labor and expense, and to obtain other advantages and results as may be brought out in the following description.

Referring to the accompanying drawings, in which like numerals of reference indicate corresponding parts in each of the several gures, Figure 1 is a view in front elevation of a ladle provided with my improved stopper or closure; Fig. 2 is a view of the bottom of the ladle, looking upward; Fig. 3 is a vertical section on line 3 3 of Fig. 2; Fig. 4 is a detail view of the rear end of the stopper or closure, with its handle removed; Fig. 5 is a view of a certain threaded socket or support for said handle, and Fig. 6 is a view of a certain spring and its support for holding the stopper or closure in sealing position.l

In said drawings, 10 indicates a ladle of the form and size commonly employed for pouring molten metal into molds, said ladle having at opposite sides of itself supporting trunnions 11, 11 on the outside of its walls 12 and having in its bottom 13 an outlet 14. On opposite sides of said outlet 14, slideways 15, 15 are provided upon the bottom 13 of the ladle, and which slideways receive flanges 16, 16 on the opposite sides of the stopper or closure 17, preferably at their upper edges, as shown. Said stopper or closure 17 preferably comprises a shell or body 18, of sheet metal or the like, which is wedge-shaped in side view or has its bottom 19 inclined rearwardly downward from the bottom 13 of the ladle to the lower edge of the rear end walls 20 of the shell or body. The sides 2l, 21 of said shell or body I have shown vertical, although they might be otherwise formed. This shell or body 18 of the stopper or closure is filled with fire clay 22, the upper surface of said filling being plane and adapted to slide along the bottom 13 of the ladle as the stopper or closure is reciprocated in its slideways 15, 15. Of course, said stopper or closure is of suiiicient size, and properly located, to either cover the outlet 14 as shown in the drawings or be slid to entirely uncover it and permit the outflow of the contents of the ladle. For so sliding the stopper or closure, its rear end wall 20 has a centrally disposed projecting boss 23, socketed as at 24 to receive the end of the shank or shaft 25 of a handle 26. Said handle 26 extends through a hanger 27 depending from the bottom 13 of the ladle, and thus by reciprocating said handle 26 the stopper or closure 17 can be slid into open or shut position. Preferably, the handle 26 is reciprocated by threading its shaft or shank, as at 28, to screw in the hanger 27, which has a correspondinglythreaded bearing 29, and the end of the shank which enters the socket 24 has an external groove 30 to receive a retaining screw 31 through the wall of the socket, while the outer end of the shaft or shank 25 is provided with a hand wheel 32.

If necessary to secure an impervious fit of the stopper or closure 17 against the bottom 13 of the ladle, covering the outlet 14, so as to prevent any escape of liquid metal past said stopper when closed, a spring 33 may be provided to seat the stopper against the botytom of the ladle. Said spring 33 is preferably supported, as shown in the drawings, by a U-shaped bracket 34 depending from the ladle bottom 13, and which has a post 35 for the spring to be set over to hold it in position. Said bracket 34 is of course so located that it and the spring 33 are clear of the flow of iiuid metal from the outlet, 14.

It will be noted that in the reciprocation of the stopper or closure 17 its sharp, thin edge is caused to move back and forth across the outlet opening 14 in the bottom of the ladle, and said sharp edge prevents any tendency of the stream of molten metal to accumulate on the stopper or closure In other words, a well-defined solid stream is secured from the outlet When the stopper or closure is opened, and said stopper when closed cuts of the stream positively and cleanly.

Having thus described the invention, what I claim isl. The combination With a casting' ladle having an outlet in its bottom, of a stopper or Closure outside said ladle With its bottom inclined upward to form an acute angle with the top at one edge of the stopper, means for holding said top of the stopper or closure in sliding engagement With the bottom of the ladle, and means for sliding said stopper or closure to move its said sharp edge back and forth across said outlet of the ladle.

2. The combination With a casting ladle having an outlet in its bottom, of slideways upon the outer surface of the bottom of said ladle at opposite sides of said outlet, a stopper or closure mounted at its opposite lateral edges in said slideivays and imperviously engaging at its top the bottom of the ladle, the bottom of said stopper or closure gi otk/,effi

being inclined longitudinally upward to form an acute angle with the top at one end of the stopper, and mea-ns connect-ed to the other or thick end of the stopper or closure for sliding' it in said slideivays.

3. The combination with a casting ladle having an outlet in its bottom, of slideivays upon the outer surface of the bottom of said ladle at opposite sides of said outlet, a stopper or closure mounted at its opposite lateral edges in said slideivays and imperviously engaging at its top the bottom of the ladle, a hanger depending from the ladle bottom, a shaft threaded in said hanger in alinement with the direction of sliding of the stopper or closure, means rotatably securing the inner end of said shaft to the stopper or closure, and means at the outer end of the said shaft for turning the same.

JAMES XV. CALLAGHAN.

In the presence ofNM PAUL P. FITZSIMMONS, FRANCES E. BLonGn'r'r.

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