US2333113A

US2333113A - Pouring box

Info

Publication number: US2333113A
Application number: US401324A
Authority: US
Inventors: James L Martin; Harold B Wessenger
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-07-07
Filing date: 1941-07-07
Publication date: 1943-11-02
Anticipated expiration: 1960-11-02

Description

Nov. 2, 1943. J. MARTIN- ET AL POURING BOX Filed July 7, 1941 .r Mm u 5 ME LW HE F r 5 .H..

Patented Nov. 2, 1943 POURING BOX James L. Martin, Lowell, and Harold B. Wessenger, Medford, Mass.

Application July 7, 1941, Serial No. 401,324

(Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 0. G. 757) 1 Claim.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to use of any royalty thereon.

This invention relates to metal casting and in articular to a pouring box therefor. While the ouring box described herein was developed in connection with centrifugal casting and has particular reference thereto, it will be understood that it may be employed in other types of casting as well.

Replacement of brick lining in pouring boxes is an item of considerable time and expense. It has been noted, however, that only certain portions of the brick lining, namely those in the lower portions of the box need frequent replacement, due to the longer dwell of the molten metal, those in the top portion remaining in serviceable condition for at least 20 and often as high as 50 heats. This fact is utilized to advantage by making the pouring box in sections so that the upper part may be removed intact to permit renovation of the lower part. V

It is therefore an object of the invention to provide a pouring box for metal casting which will afford ease and economy of lining replacement.

It is a further object of the invention to provide a sectional pouring box to permit partial lining replacement.

To these and other ends, the invention consists in the construction, arrangement and combination of elements described hereinafter and pointed out in the claim forming a part of this specification.

A practical embodiment of the invention is illustrated in the accompanying drawing wherein:

Figure 1 is an elevational view in section of the pouring box of the invention.

' Figure 2 is a similar view of a modification of a pouring box, and

Figure 3 is an end view partly in section of the pouring box of Figure 2.

Referring to the drawing by characters of reference, there is shown a pouring box composed of a lower section I having a sand filling 2 and a firebrick lining 3. A sleeve brick 4 forms an efilux orifice and a pouring spout, indicated generally at 5 is carried by lower section l'.

The upper section 6 is simply lined with firebrick. Angles and 8 are carried by the upper and lower sections, respectively, of the pouring box, and form a convenient means for bolting the sections together, although it will be understood that other well known forms of attachment may be readily employed to join the sections. Further angles 9 are provided at the rim of the upper section to form a lip for handling purposes and for accommodating auxiliary parts. Angle bars 20 on the inside serve to space the brick in the upper from that in the'lower portion.

In Figure 2 is shown a pouring box combining bottom pour and horizontal flow through a curved discharge orifice I 0. A stopper ll of graphite on the end of a rod 2| having a firebrick jacket 22 is rigged to the upper section 6 through a double rocker arm l2 pivoted in an upright support l3 and urged manually by a wheel l4 fixed to a shaft [5 having a threaded unit 16 turning in a threaded bushing ll fixed to the upper portion 6 of the pouring box. Carrying the thrust to the rocker arm is a rod I8 which is rotatably mounted in the threaded unit Hi. The system is braced by additional bushings l9 carried by the upper box section 6. The provision of separable pouring box sections oifers additional advantages in pouring boxes having stoppers, since the latter are thereby easily removed integrally with the box top to permit work on the bricking.

We claim:

A two-part pouring box for molten metal comprising separable upper end lower sections, said upper section having vertical walls and being designed to hold the molten metal in the normal upright position of the box, said lower section having a pouring spout therein, means coupling the sections in aligned relationship, said upper section comprising a shelf protruding inwardly of the box and replaceable refractory linings in each of the sections, the lining in theupper section resting on the said shelf, said lower section being subjected to longer exposure from molten metal than the upper section during a pouring operation.

JAMES L. MARTIN. HAROLD B. WESSENGER.

CERTIFICATE OF CORRECTION. Patent No. 2,555,115. November 2, 1915.

JAMES L.. MARTIN, ET AL It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction asfollowe: Page 1, first column, line LL, for "use" read --us and that the said Letters Patent should be read with this correction therein that the same ay Confirm to the record of the case in the 'Patent Office.

Signed and sealed this 7th day of December, A. D. 19h5.

Henry Van Arsdale,

(Seal) Acting Commissioner of Patents.