US1023633A - Chaplet. - Google Patents

Description

J. I. FASY.

GHAPLET.

APPLICATION FILED DBO. 2B, 1910.

1,023,633, Patented Apr. 16, 1912.

diff- JOSEPHI. FASY, 0F GERMANTOWN, PENNSYLVANIA.

GHAPLET.

Specification of Letters Patent.

Application led December 28, 1910.

Patented Apr. 16, 1912.

serial No. 599,658,

To all whom t may concern:

Be it known that I, JOSEPH I. FAsY, a citizen of the United States, and a resident of Germantown, county of Philadelphia, State of Pennsylvania, have invented certain Improvements in Ohaplets, of which the following is a specification.

One object vof my invention is to provide a novel form of core supporting device or chaplet, which in addition to being of such a construction as to properly carry heavier cores or withstand heavier pressures than has ordinarily been possible with chaplets made of the same amount of material, shall be less liable to failure under working conditions than other devices commonly used for the same purpose. I further desire to provide a chaplet of such a construction that it shall permit the molten metal to completely fill the hollow interior of a mold in which it is used; the construction being such as to permit of the free escape of gases from its interior so as to prevent the formation of cavities in the finished casting.

Another object of the invention is to provide a chaplet with grooves for the escape of gases, which shall be so formed and placed as to strengthen rather than weaken the structure; the arrangement being such that the gas grooves or passages shall open on the sides of the chaplet at points between the holes in said sides thereof.

These objects and other advantageous ends I secure as hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1, is a perspective view of the preferred form of my chaplet; Fig. 2, is a side elevation of the chaplet shown in Fig. 1; Fig. 8, is a horizontal section on the line a-a, Fig. 2; Fig. 4, is a vertical section on the line o o, Fig. 3;.Fig. 5, lis a side elevation of one of the possible forms of chaplets constructed according to my invention.

In the above drawings 1 is the cylindrical body of a chaplet made according to my invention by drawing a plate of proper thickness and material into the form shown. One end of this body is closed or headed and is provided with a central opening 2 from which radiate three or more gas grooves or passages 3, placed in the present instance 120 apart. The opposite end of the body 1 is provided with an outwardly extending flange 4, and said body has a number of holes 5 which may be circular or elliptical in form; these being equal in number to the number of gas passages 3 and so placed that each of them lies substantially midway between the outer ends of the two nearest of said passages. These holes are of such size and are so placed that there is a small upwardly extending portion 6 between their lowermost parts and the flange 4, so that the chaplet is not materially weakened at this point. For this reason relatively great pressures may, under conditions of use, be applied to the structures between which the chaplets are placed withoutcausing these latter to collapse or spread, as would be the case if the liange 4 were cut opposite each of the holes 5 or was made otherwise than in a continuous annular piece. Moreover the grooves 3 are so arranged as to materially stiften the closed end or head of the cylindrical body 1 and permit the free escape of gases from the opening 2 as the molten metal enters the holes 5 during the process of casting and rises within the body 1. Owing to their number and arrangement, it is a practical impossibility for the core or wall of a mold to ft into the grooves 3 so as to close them, and as a consequence there is no danger of their failing to perform their desired functions from such cause.

It is, of course, immaterial just what shape is given to the holes 5, as for eXample, they may be given an elongated substantially elliptical form as shown at 5aL in Fig. 5, when the chaplet is of relatively great width as compared to its height. In any case, however, they are preferably so formed as to leave an angular lip 6 adjacent the flange 4, and in a case such as illustrated in Fig. 5, they also terminate some distance away from the top or closed end of the body 1aN so as to leave the flange or edge 7, which materially aids in stili'ening the structure as a whole.v It is obvious moreover that more than three of the radiating recesses or grooves may be used without departing from my invention and in any case I preferably provide the same number of holes 5 as there are recesses 3, forming said holes respectively midway between the lines of the ends of each pair of adjacent recesses or grooves.

I claim 1. A chaplet consisting of a cylindrical body portion having a continuous unbroken flange at one end and provided with a head at the opposite end; there being openings in `the sides of said body portion.

2. A chaplet consisting of a cylindrical body portion having a continuous unbroken outwardly projecting flange at one end and a head at the opposite end provided with a central opening and three or more gas passages radiating from said opening; there being holes in the body portion each placed between the outer ends of the adjacent pair 10 of gas passages.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOSEPH I. FASY.

Witnesses:

WILLIAM E. BRADLEY, IVM. A. BARR.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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