US922187A - Foundry-flask. - Google Patents

Description

E. P. POWER.

FOUNDRY PLASK. APPLICATION FILED JAR. 14, 1909.

Patented May 18, 1909.

2 SHEETS-SHEET '1.

WITNESSES THE NORRIS n'rsRs cm, mumua'lonr, b. r:

2 sums-sun's.

Patented May 18, 1909.

' E. 1?. POWER.

FOUNDRY I FLASK. APPLICATION FILED JAN.14, 1909.

@dmunu, v

WITNESSES EDWARD P. POWER,

I ATET or CLEVELAND, oi-no.

FOUNDRY-FLASK.

Application filed January 14, 1909.

are sections on the lines II-II and IIIIII respectively of Fig. 1 and Figs. 4, 5, 6, 7 and 8 are detail perspective views hereinafter more particularly described.

My invention has relation to foundry flasks, and is designed to provide improved means for supporting the sand in the top por tion or cope of the flask. l-Ieretofore, the common way of doing this has been to ram the sand between flask bars secured with bolts to the sides of the flask. For deep hanging bodies of sand, special hooks are provided, such hooks being supported by the flask bars. Where it is necessary to make irregular partings, special flask bars have to be made. In many cases these special arrangements are expensive; the parts are fastened with bolts which get loose and work out and become lost, and the entire arrangement is more or less unsatisfactory.

The object of my invention is more particularly to provide sand-su )porting means which can be secured to the flask without the use of bolts; which can be adapted to suit a wide range of patterns; and which form simple and effective means for the pur ose.

The nature of my invention wil be best understood by reference to the accompanying drawings, which will now be described, it being premised, however, that various changes may be made in the details of con struction and arrangement of the parts with out departing from the spirit and scope of my invention as defined in the appended claims.

In these drawings, the numeral 2 designates the cope portion of a foundry flask, which may be in general of any usual or wellknown construction. In accordance with my invention, the two opposite sides or ends of the flask are provided with inwardly projecting lugs 3, arranged in two rows, and one above another, as clearly shown in Fig. 3. These lugs may be of various forms. In Fig. 4 the upper lugs are shown as having the downwardly and outwardly inclined upper Specification of Letters Patent.

Patented May 18, 1909.

Serial No. 472,349.

surfaces 4, while the lower lugs have the up- 5 wardly and outwardly inclined lower surfaces 5. In the form shown in Fig. 5, these lugs have straight upper and lower surfaces. 6 designates flask bars or partitions. Each end portion of each of these bars is provided with pairs of lugs 7 or 7 which are designed to engage the lugs 3 in the manner clearly shown in Figs. 4 and 5, and thus support the bars in the flask. In Fig. 4 the lugs 7 are shown as of triangular form to fit the beveled upper faces 4 of the lugs 3, while in Fig. 5 they are shown at 7 as of rectangular form to "fit the straight upper faces of the lugs 3.

The sides or ends of the flask are provided with the key holes 8 intermediate each pair of lugs 3, and the bars 6 are firmly secured in position by means of keys or wedges 9 driven into these openings and against the upper edges of the bars. The provision of the two sets of lugs 3, enables the cope section to be used reversibly, since the lugs 7 on the bars may engage a pair of either the upper or the lower series of the lugs 3.

Each of the bars 6 is formed on the inner face with a plurality of dovetail lugs 10, be tween which sand supports 11 of the form shown in Figs. 6 and 7 may be placed, being secured between said lugs by means of suitable keys or wedges driven in the seats 12 provided therefor. These pieces may be placed at the proper height in the cope to suit the particular pattern being used, and can be readily adapted to a wide range of patterns. The bars 6, or any of them, can be placed in a higher position in the cope than that shown, by simply omitting the Wedges 9 and holding the bars in raised position by means of wedges 13 as shown in Fig. 2. The pieces 11 not only support the sand, but the lugs 3 0n the sides of the flask, and also the lugs 10 on the bars 6 also assist in carrying the sand.

With metal flasks the lugs 3 may be readily cast on the ends or sides thereof. For wooden as shown in Fig. 8, having bolt holes or other means by which they may be rigidly secured to the flask body and provided with lugs 15 which correspond to the lugs 3 before de scribed. By means of these brackets the advantages of the invention may be largely obtained with wooden flasks.

The invention provides a simple and eflicient means for supporting sand in a cope or foundry flask without the use of the special flasks I provide a series of brackets 14, such be readily adapted to suit a wide range of devices commonly employed, and which can patterns. The arrangement of the lugs 3 it will be noted is such that the cope may be readily inverted and used either side up.

It will be understood that any desired number of bars 6 may be employed, according to the nature of the pattern; that the manner of supporting the bars and flasks can be changed in detail, and that various forms of supporting pieces 11 may be secured to the bars 6.

What I claim is 1. A foundry flask having a plurality of detachable bars or partitions detachably secured therein, said bars or partitions having laterally projecting lugs; substantially as described.

2. A foundry flask having a plurahty of bars or partitions, detachably secured there in, said bars or partitions being provided with laterally projecting lugs, and sand-support ing pieces arranged to be held and supported by said lugs; substantially as described.

3. A foundry flask having opposite sides or ends provided each with lugs or projections arranged in pairs, and bars arranged to fit between the projections and having laterally projecting lugs at both sides thereof, said lugs being arranged to rest upon the end surfaces of two of the lugs or projections of the flask; substantially as described.

4. A cope section for foundry flasks, having sides or ends provided each with two series of lugs or projections arranged in pairs, one series above the other, and bars arranged to seat between the pairs of projections and having each two oppositely projecting lugs at each end, said lugs being arranged to have a supporting engagement with the end surface of a pair of either of the two series of lugs or projections on the cope section, together with means for detachably securing the bars in their seats; substantially as described.

5. A foundry flask having a bar or partition detachably secured therein, said bar or partition having a laterally projecting lug formed with a dove-tailed or undercut recess may be supported at different heights inde- 1 pendently of the lugs on the bars; substantially as described. 1

In testimony whereof, I have hereunto set my hand.

EDWARD P. POWER. l/Vitnesses:

JOHN H. Hose, HEnsorrEL S. HAY.

Images