US974218A - Adjustable chaplet. - Google Patents

Description

T. H. WELLS.

ADJUSTABLE GHAPLET. APPLICATION FILED APR.6, 1910.

974,218. v Patented Nov. 1,1910.

UNITED STATES PATENT OFFICE.

THOMAS HARRY WELLS, OF TORONTO, ONTARIO, CANADA.

ADJUSTABLE GHAPLET.

To all whom it may concern:

Be it known-*that I, THOMAS HARRY \VnLLs, of the city of Toronto, in the county of York and Province of Ontario, Canada, have invented certain new and useful Improvements in Adjustable Cha lets; and I do hereby declare that the fo lowingis a full, clear, and exact description thereof, reference being had. to the accompanying drawings, which form part of this specification.

. The present invention relates to improvements in an adjustable chaplet for foundry purposes, whichin its application can be carried out in several ways in order to overcome the difiiculties that are encountered in the use of previous devices of this class, and particularly to the means employed to insure the core-supporting device becoming an inseparablepart of the. casting.

In the present invention the number of chaplets necessary in a series of any given range, is reduced by providing a maximum of adjustability with a minimum number of separable parts, which is a desideratum; and the objects of my improvement are, to eliminate the possibility of extending within the range of adjustment beyond the limit'of safety of the screw-threaded engagement; to afl'ordfacilities for supporting the chaplet in any desired position and secure the same to prevent displacement; and, to provide an eflicient yet inexpensive chaplet which will present an unbroken surface in, and become an integral part of the finished casting.

The device illustrated in the accompanying drawings is in accordance with my invention, in which 4 Figure 1 is a side elevation of a chaplet conforming to the herein described invention. Fig. 2 is a view in side elevation with a portion in vertical section of a modification. Fig. 3 is a sectional view of a portion of a casting showing inte ral therewith a chaplet, and setting forth, in side elevation, a further modification of the chaplets shown in Figs. 1 and 2; and, Fig. 4c is a sectional view of a mold or flask showing the application of the several modifications of this invention as applied to separate and support cores.

Similar figures of reference refer to like parts throughout the several views.

In its several forms or modifications it will be seen that, there are in all but two Specification of Letters Patent. Application filed April 6, 1910. serial No. 553,395.

Patented Nov. 1, 1910.

separable parts comprising the chaplet, each adapted for screw-threaded engagement, and without exterior openings to mar the surface of the casting of which it becomes a par in the act of supporting cores.

The variability of the length of the chaplet, within the range of adjustment, is provided by a single screw-threaded engagement, comprising an internallyscrew-threaded sleeve or socket 1, an externally screwthreaded stud 2, and each provided with a laterally extending flange integral with one endthereof and adapted to form heads 3. These heads are preferably circular in shape, the outer faces of which rovide unbroken plane surfaces, so that their use will not be the cause of objectionable recesses or pockets in the surface of the finished casting. The periphery of the heads 3 is provided with a beveled face 4, as shown. The inclination of the beveled face is suflicient to insure the headsof the chaplet becoming pocketed in and for all ordinary purposes an inseparable part of the casting.

On referring to Figs. 1 and 2 it will be seen that, the arrangement of the screwthreaded members is reversed, with respect to the elongated stems 5. In the instance of Fig. 1, the sleeve 1 is formed of one piece with the head and stem, while in that or Fig.

2, the stud 2 is formed of one piece with the head and stem. This arrangement is at present immaterial, but may be of some considemtion in the manufacturing of large quantities.

The stems 5, of which two forms are shown, are adapted to support the chaplet in any desired position by being forced or otherwise inserted below the face of the mold. To facilitate the cutting-off of the stems during the dressing of'the casting after being removed from the mold, and to minimize the possibility of injury to the heads of the chaplets, there is a neck 6 of reduced diameter adjacent to the outer surface of the head of the chaplet, as shown.

" On referring to Fig. 3 it will be seen that, in this instance, the elongated stem 5 is dispensed with and the chaplet adapted to rest in the mold in the usual way, as shown in Fig. 4.

Should it be found desirable to eliminate the inclosed space 7, brought about by the adjustment of the screw-threaded members 1 and 2, there are openings 8 communicating with the screw-threaded interior of the sleeve 1, so that the metal when poured has ingress to the interior space.

Having described my invention, what I claim as new and desire to secure by Letters- Patent, is

1. In adjustable cha lets, the members adapted for screw-threa ed en agement provided-with heads of relative large area and having a receding margin whereby the metal of the casting is permltted to converge over the the peri iery of the inclined face, for the purpose iierembefore set forth.

2. In adjustable cha lets, the members adapted for screw-t'hrea ed engagement provided with laterally extending flanges to form heads of relatively large area, and a supporting stem integral with one of said members and so formed as to be readily severed from the head of the chaplet after the casting is made.

3. In adjust-able cha lets, the members adapted for screW-threa ed engagement proerimeter of the head and envelop vided with laterally extending flanges to form heads of relatively large area, a recedmg margin whereby the metal of the casting is permitted to converge over the perimeter and envelop the periphery of the inclined face of said heads, and a supporting stem having a neck portion of reduced diameter adjacent to the outer surface of said head.

4. An adjustable cha let comprising two separable parts adapte for screw-threaded engagement, a sleeve and stud each having a laterally extending flange of relatively large area to form heads havin an uninterrupted plane outer-surface, an one or more transverse openings communicating with the screw-threaded interior of saidsleeve.

In testimony whereofI have signed my name to this specification in the presence of two subscribin witnesses.

TH MAS HARRY ELLS.

Vitnesses PERCY WATT, H. DIxoN.

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