US1426136A - Nozzle - Google Patents

Description

Patented Aub. 15, 192?.

. H. WILLS NOZZLE.

APPLICATION FILED APR. 18, 1922.

/H /f/f PATENT". oFFlcE.

NozzLE.

Application led'April 18, 1922.' Serial No.

To ZZ ywhom it may concern.'

Be it knownV that I, 'WILLIAM H.` WILLs, J r., a. citizen of the United States, residing at Charleroi, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Nozzles, of which the following is a specification, reference being had therein to the accompanying drawing. p v

This inventionv relates to nozzles for pouring molten metal and the like and'is de-v signed1more particularly for use with a bottom pour ladle of the type now inl common use for various purposes. I

One object of the invention is to provide a nozzle with which a relatively large volume of metal may be poured through an opening, or conduit, of small diameter.

A further object of the invention is to provide a nozzle with'which the stream of metal will be substantially uniform and will have little tendency to spray.

A further object of the invention is to provide a nozzle of such a kind that there will be little tendency to freeze up when the metal is not suiiciently hot for proper pouring, and in which there will be a better opportunity to reopen the nozzle in case it does freeze up. l

A further object of the invention is to provide a nozzle, having these several advantages, which can be produced at a low cost and which can be substituted for the present nozzle without material change in the ladle` Other objects of the invention may ap- 2 l fis-"fthe Ordinary nozzle, but because of the The accompanying drawing'is a sectional pear as the device is described in detail.

view taken vertically through a nozzle embodying my invention.

provide a body portion preferably of clay, or other heat resisting material and provide that body with a conduit in the form of a compound tube, through which the. metal is discharged from the ladle. In the partieular form of the nozzle here shown the body portion l is cylindrical in shape and is adapted to be built into the bottom of the ladle in the usual manner. The conduit comprises an upper portion 2 which preferably is substantially cylindrical in shape,

and a lower portion 3 which `also is prefer ably substantially cylindrical in shape and which is of greater diameter than the upperv portion 2. These two parts "ofthe conduit Specification of Letters Patent.

, upper surfacewitha cavit ratemeaang. 15, 1922.

are connected one to the other by an intermediate portion 4, the walls of which preferably divergel uniformly from the lower end of the upper portion 2 to the upper end of thelower portion 3 of the conduit. The diverging walls'of the intermediate portion merge into the walls of the substantially cylindrical upper and lower ortions. In the present drawing I have slig tly exaggerated the angular relation of the wallsof the intermediate portion to the walls of the upper and -lower portions, in order to clearly showthe characteristics of these parts, but in practise the several portions'of the tube will merge gradually one into the other and the angular relation thereof will be less readily discernable than 'it isl in the drawing. The conduit will, however, retain the essential characteristics above set forth, that is, the upper and lower portions of different diameters and the diverging intermediate portion connecting the upper and lower portions and having its walls in angular rela# tion to. the walls ofsaid upper and lower portions.

The body portion'l is provided in its 5to form a seat for the h ead 6 of -the usua stopper and this cavity converges at 8 into the upper portion 2 of the conduit. The lower part of the body portion 1 is provided with a' down-v wardly projecting portion 7 which extends through' the nozzleplate 9, ofthe ladle and through which the lower portion 3 of the conduit extends.,l

The nozzle is usedlinthe same manner as vl-zle thamwill pass through the ordinary noz In constructing myl improved nozzle`- I more readilyl opened. The characterv of thenozzle is such that it can be built at substantially the same cost as the ordinary nozzle and can be embodied in the ladle with little-- or no change in the 'construction thereof.

lVhile I have shown and described one embodiment of my invention 'I wish it to be ico understood that ll do not desire to be limited to the details thereof as various modifications. may occur to a person skilled in the art.

Having now fully described my invention what I claim as new and desire to secure by Letters Patent is:

l. A nozzle for pouring molten metal and the like, comprising a body portion having a conduit, the upper and lower portions of which are of .different diameters and are connected one to the other by an intermediate portion, the walls of which diverge downwardly and are arranged at an angle to the walls of both the upper and lower portions of said conduit.V

2.l A nozzle for pouring molten metal and the like comprising a body portion having a conduit provided with an upper substantially cylindrical portion, a lower substantially cylindrical portion. and an intermediate portion connecting said upper and lower portions. l

3. A nozzle for pouring molten metal and the like comprising a body portion having a conduit provided with an upper substan` tially cylindrical portion, a lower substantially cylindrical portion, and an intermediate portion, the walls of which diverge apmae-,13e

preciably from said upper portion to said lower portion.-

4. In a nozzle for pouring molten metal and the like, a body portion having a conduit comprising an upper substantially cylindrcal portion and a portion extending downwardly therefrom and having down wardly diverging walls, said conduit having its discharge end of a greater diameter than said cylindrical portion.

5. In'a nozzle for lpouring molten metal and the'like, a body portion having a conduit comprising a lower substantially cylindrical portion and a second portion merging into and extending upwardly from the upper end of said cylindrical portion and having its upper end of a smaller diameter than said cylindrical portion.

6. A nozzle for pouring molten metal and the like comprising a body portion having a stopper seat and a conduit, said conduit having an upper cylindrical portion of least diameter, a lower cylindrical portion of greater diameter and a portion converging from said stopper seat to saidportion of least diameter.

ln testimony whereof, I aflix my signature hereto.

VVlLLlAM H. WlLlLS, JR.

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