US3370643A - Chill - Google Patents

Description

Feb. 27, 1968 CHILL H. F. LORENZ Filed June 7, 1965 4 IO FIG?) INVENTOR.

HARVEY F LORENZ BY 0 W W W ATTORNEYS United States I Patent O 3,370,643 CHILL Harvey F. Lorenz, Cleveland Heights, Ohio, assignor to The Angeli Nail & Chaplet Company, Cleveland, Ohio, a corporation of Ohio Filed June 7, 1965, Ser. No. 461,873 1 Claim. (Cl. 164-371) ABSTRACT OF THE DISCLOSURE A radius foundry chill including an elongated body having an arcuate surface on one side and a generally flat surface on the opposite side with a stud member projecting downwardly from the fiat surface. The stud member having a gear-like toothed construction of generallyherringbone gear-type configuration adapted for securing the chill to molding material or the like.

This invention relates in general to chills used in metal casting processes, and more particularly to a fabricated radius chill.

As is well known in the art, metal chills are commonly used to prevent cracking of the casting, particularly at corners and angles thereof, upon shrinkage stresses due to cooling. Such chills are adapted for positioning in the mold or in the sand cores of the mold, to give the desired curvature to the casting, after cooling of the molten metal. Upon removal of the casting from the mold, the chills are adapted to be either knocked off the casting, if they adhere thereto, or to drop off by gravity during the cleaning operation on the casting, and the chills are adapted to be reclaimed for reuse.

The present invention provides a novel fabricated radius chill which will provide a smooth, curved surface for forming the curvature in the casting, and which embodies means for positively retaining the chill in predetermined position in the mold or core, for ease in handling of the mold or core prior to and during the casting operation for forming the finished casting.

Accordingly, it is an object of the present invention to provide a novel chill.

Another object of the invention is to provide a novel radius chill which is of fabricated construction and which embodies means thereon for positively holding the chill in the sand core or mold, to facilitate handling of the latter.

Another object of the invention is to provide a novel radius chill comprising a body portion with a curved surface on one side thereof for forming the desired curvature in the castin and a generally flat surface on the other side thereof, and having stud means attached to the flat surface and projecting outwardly therefrom, and with such stud means having a toothed exterior configuration thereon to facilitate the retention of the chill in the mold or core.

Another object of the invention is to provide a radius chill of the latter mentioned type wherein the stud means has a herringbone-like toothed configuration thereon divided by a centrally disposed fin portion encircling the stud means.

Other objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings wherein:

FIG. 1 is an enlarged side elevational view of a radius chill constructed in accordance with the invention;

FIG. 2 is an end elevational view of the FIG. 1 chill;

FIG. 3 is a bottom plan view of the chill of FIGS. 1 and 2;

FIG. 4 is a fragmentary sectional view taken generally I 3,370,643 Patented Feb. 27, 1968 veniently hot rolled from bars into the generally half oval shape illustrated, which rolling facilitates a smooth curvature forming surface 12 on the chill.

Projecting outwardly from the flat surface 14 of the body 10 may be leg or stud means 16, which stud means is adapted for holding the chill in the mold or core.'The stud means 16 is preferably secured as by welds to the surface 14.

The stud means 16 is provided with an exterior configuration ensuring good holding ability of the stud means in the mold or sand core. Such exterior configuration may comprise a circumferentially extending shoulder or fin 18 which extends radially from the stud and which fin is'of triangular configuration in cross-section as best shown in FIG. 4. The fin 18 is preferably located approximately centrally of the stud 16 in spaced relationship to the flat surface 14 on the chill body.

Extending circumferentially of the stud 16 are herringbone gear- like configurations 22, 22a separated by the aforementioned fin 18. Smooth sections 26 are preferably disposed adjacent the toothed sections 22 22a, to complete the exterior configuration of the stud means. The exterior toothed configuration of the stud means is preferably rolled into the stud means, to provide an expeditious arrangement for producing the configuration illustrated.

Such a tooth and fin arrangement of stud means provides extremely good holding power of the chill in the sand mold or core, and the sand can be readily compacted about the stud means into holding coaction with the tooth and fin configuration to positively hold the chill against axial as well as rotative movement with respect to the mold or core. Thus the mold or the core with the chill therein can be more expeditiously handled prior to pouring of the casting, and after the liquid metal has solidified, the chills can be knocked off the finished casting or will drop off by gravity, and then can be reclaimed for reuse. The chill may be readily manufactured and fabricated from standard steel stock.

While only one stud is shown in the drawings, it will be understood that the chill may have a plurality of studs projecting from the flat side 14 thereof, especially when the body 10 is of a substantially larger length.

From the foregoing discussion and accompanying drawings, it will be seen that the invention provides a novel chill of fabricated construction, and one having means thereon for positively holding the chill in assembled predetermined position in the mold or core, as well as a chill that can be readily and economically manufactured.

The terms and expressions which have been used are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of any of the features shown or described, or portions thereof, and it is recognized that various modifications are possible within the scope of the invention claimed.

I claim:

1. A generally T-shaped radius foundry chill for use in casting molten metal comprising, an elongated body portion, said body portion having a generally cresentshaped configuration in vertical cross-section, including a convex surface on one side and a substantially fiat surface on the opposite side thereof, said body portion being of a uniform construction in transverse cross-section throughout "its length vvith said convex" fa sharply merging at its opposite. ends with said flat surface to form a sharp acute angle therewith defining a pair of oppositely disposed parallel end edges for said body portiOIlySZiid-ifid edges being disposed in the, general plane,

of said flat=surface,;at least one stud member made' integral with and projecting downwardly from the substantially fiatsurface of said body portion, the. general plane ofsaid ,flat surface. being-generally-perpendicular to the longitudiuallaxis of said stud, an endless outwardly projecting finmade integral and extending circumferentially around-saidtstud member generally intermediate its ends,

a; first set ofinclined gear-like teeth of rolled constru c-..

tion disposed between the substantially flat surface of said bsody portion and-said fin, a second set of inclined gear-like teeth of rolled construction disposedbetween.

said fin and the free end of said stud' mernber, said first and second sets of gear-like teeth being inclined axially in opposite directions with respect to one another to provide a herringbone type configurationthereof for anchoring said chill in a molding material, said stud member,

including a substantially smooth surface, extending circumferenti-ally thereof and axially between said substanpfqjl fl 'fradially outwardly; f r eg s ng {Infamy I a reater distance thanthbutward proje ti g bf a y g like teeth. I a .7

References Cited 2 f UNITED STATES PATENTS 8/1936 'Augell et al. "l;' l 64-39 8 s/1957 Raible V 164 -3 71 FOREIGN-PATENTS 4/1909 France. 7/1926 Great Britain.

I. SPENCER OVERHOLSER, Primary Examiner; R. D. BALDWIN; Assistant Examiner.

Images