US1858494A - Chaplet - Google Patents

Description

May 17, l1932.

CHAPLET Filed ost. 18,

S. H. GIBSON L1 vefoze JMJ WM Patented May 17, 1932 www..

SAMUEL H. GIBSON, OF LAKEWOOD, OHIO, ASSIGNO TO THE FANNER LIANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO CHAPLET Application led October 18, 1930. Serial No. 489,648.

This invention relates to chaplets such as are used in metal foundries for the purpose of positioning a core in a mold.

An object of the present invention is to provide a chaplet which is simple in construction,

inexpensive to manufacture and efficient in its purpose.

Another object of the present invention is to provide a chaplet of improved construction over those in use at the present time.

`With the objects above indicated and other objects hereinafter explained in view, the invention consists in the construction and combination of elements hereinafter described and claimed.

Referring to the drawings :F Y

Figure 1 is a. sectional view of a mold and core supported by chaplets embodying the present invention.

Fig. 2 is a side elevational view of a chaplet 2C embodying the invention and on an enlarged scale.

Fig. 8 is a vertical sectional view of the same.

Fig. 4 is a top plan view of Fig. 2.

In the drawings a two part mold usually of green sand is shown which comprises an upper portion 10 and a lower portion 11 split transversely in the usual manner and provided with cooperating cavities 12 and 13 of any suitable contour depending upon the character of the article to be molded. A core 14 usually of baked sand and of any desired contour is positioned within the cavities 12 and 13 and is usually spaced apart therefrom and supported by a plurality of chaplets of usualconstruction.

Due to the fact that it is necessary that the end of the chaplet must necessarily be fused or melted by the metal forming the casting, trouble has been encountered in a great many instances and it has become necessary therefore, to construct the chaplet with a stem of very small diameter in order that the met-al may readily melt or fuse the same. At the same time providing the chaplet with a stem of such small diameter resulted in a piercing or puncturing of the core which the chaplets were intended to support. This was due to the 4fact that when the metal was poured into the mold it applied an upward force upon the core to such an extent that the extended ends ofthe chaplets pierced the core so that the casting was imperfect. 1

It is therefore one of the important features of thepresent invention to permit the usage 5.5

. `of a stem of small diameter and at the same time provide suitable means upon the end of the stem which supports the core which wil-l not puncture or pierce the core, but will support the latter as intended.

A chaplet embodying the present Iinvention is illustrated in the drawings and comprises a stem 15 to one end of which is riveted or otherwise secured a head 16 shown in Fig. 4 to be square, although yother shapes may be employed Where desired. Adjacent the opposite end of the stem 15 a shoulder 17 is upset and acts as an abutment for a circular plate 18 which is tightly fitted upon the stem 15. This plate functions to properly position the chaplet in the mold as well as in the pattern.

The end of the stem 15 beyond the plate 18 isvupset to provide an abutment 19 of a diameter somewhat greater than the diameter of the stem 15. This abutment is made of suficient size to eliminate the possibility of its piercing or puncturing the core which it is adapted to support at different points. Additional-ly the location of the abutment 19 with respect to the plate 18 determines the thickness of the wall of the cast article.

In Fig. 1 the chaplet embodying the invention is illustrated wherein a plurality of the chaplets are supported by the upper and lower sections 10 and 11 of the mold. The circular plates 18 are positioned adjacent the cavities 12 and 13 while the abutments 19 engage and support the core 111 from a plurality of locations to prevent accidental displacement of the core within the cavities of the mold. The metal for forming the casting is poured in any suitable manner into the mold and flows int-o the space 20 between the mold and the core, which spacing is determi-ned by the distance between the circular plate 18 and the abutment 19.

TWhile I have described the preferred embodiment of the invention it is to be under- 100 stood that I am notto be limited thereto inasmuch as changes and modications may be resorted to Without departing from the spirit of the invention as defined in the appended claims.

Having thus described my invention I claim:

l. A chaplet comprising a relatively long.

thin stem of'substantially uniform diameter,

a flat transversely extending head attached toone end thereof, a flattransversely extending;v

disc attached to said stern and spaced apart` from said head, and an; abutment, atthe opposit-e end of said stem of greater cross-sectional area thanA said stem but lesstharr said disc.

2. A `chaplet comprising a relatively long thin round stem, a substantially fiat square head attache'dtoone end of said stem and extending transversely thereof, an enlarged por*- tiorr formed on said stem between the ends'y thereof, a flat transversely extending disc at taohed to said stem and in engagement With said enlarged portion, and: an upset portion upon the opposite end of said: stem and of a diameter slightly greater than the diameter ofv said stem but of less diameter than the diameter of said disc'. Y

In. testimony whereof, I hereunto affixl mysignature..

SAMUEL H. GIBSON.

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