US1884345A - Apparatus for casting type furniture - Google Patents

Description

Oct. 25,1932. A. G. STEVENSON APPARATUS FUR CASTING TYPE FURNITURE Filed April 23, 1931 Zlwwmtoz AS12802? G. JZeYenscm,

Patented Oct. 25, 1932' ASHTON G. STEVENSON, OF CHICAGO, ILLINOIS APPARATUS FOR CASTING TYPE FURNITURE t I Application filed April 28, 1931. SeriaI No. 532,335.

The primary object of the invention is to reinforce the core so as to eliminate such disadvantage, and at the same time, to provide a core member which has a portionfunctioning as a part of the cap or cover of the so mold.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illus trated in the accompanying drawing, and more particularly pointed out in the appended claims.

In the drawing,

Fig. 1 is a perspective view of my improved mold with the closure or front piece removed.

Fig. 2 is a front elevation of the same partly in vertical section.

Fig. 3 is a transverse sectionalview on the line 33 of Fig. 2; I

Fig. 4 is a bottom plan view of a portion of the improved mold core member.

The mold comprises the usual body 5 whi ch is adapted to be secured to or mounted upon ner. 6 designates the cap or cover WlllCll is the core has lntegral ends 11 rigidly connect- 8 top and bottom of the furniture.

the ordinary wheel or disk in the usual mant ed with a bar 12 which forms part of the core i member and extends across the top of the space 8. This transverse cross bar forms a bridge. portion for the core, and it is con nected to the core proper by one or more supports 13, and furthermore, the bar 12 forms a portion of the cap of themold. This construction reinforces the core and prevents breakage; A rivet or rivets 14, as shown in Figs. 3 and 4, passes through the bar 12, support 13 and core 9, for the purpose of rigidly securing the core to its bridge bar.

The upper and lowersides of the core-9 are spaced from the corresponding walls of the mold body and bridge bar 12, so as to form at therear, an upper slot 15 and a lower slot 16'. The inoltenmetal under pressure,is introduced through the lower slot 16 when a piece offurniture is to be cast.

At the narrower or frontedge of the core, I place notches, as shown at 17. Thus, when molten metal is introduced,-that part of the metal standing in the-said notches will form transverse supporting bridges between the To further prevent buckling of the core, I provide suitable means to effectively prevent such buckling. 18 represents a removable front piece or closure for the mold, which pieces is carried by a matrix block 19 which is supported by the matrix carrier in the usual manner. This closure 18 is provided with face pins 20 which extend into the mold body to form a front support for the core.

The core 9 and pins 20 (usually three in '95 number), serve to displace sufficient metal to make the furniture comparatively light without sacrifice to strength because of the bridging bars which unite the top and bottom of the same, due to the notches 17 6 Due to the reinforcement which I have provided for the core, the latter is positively prevented from distorting or breaking, and consequently, the furniture cast in a mold employing my improved core will always be of a; uniform construction.

From the foregoing it is, believed that the construction and advantages of my invention may be readily understood by those skilled in the art, and I am aware that 100 changes may be made in the details disclosed, Without departing from the spirit of the illvention, as expressed in the claims.

What I claim and desire to secure by Letters Patent is:

1. In a mold of the character described, a mold body having a passage therethrough, closure means for the front end of said passage, a core for partially closing the rear end of said passage, a reinforcing bar, and a support rigidly uniting the core to the reinforo ing bar.

2. In a mold of the character described, a mold body having a. passage therethrough, closure means for the front end of said passage, a core for partially closing the rear end of said passage, a reinforcing-bar, and a support rigidly uniting the core to the reinforcingbar, said support being positioned at the medial portion of the core.

3. In a mold of the character described, a mold body having a passage therethrou'gh, closure means for the front end of such passage, a core for partially closing the rear end of said p-assage,a reinforcing bridge bar extending across and arranged above the core, a core support arranged between the bridge bar and core, and means rigidly uniting the support to the bridge bar and core.

4. In a core member for use with furniture molds, comprising superposed elongated bars spaced apart to form a longitudinal slot, one of said bars being tapered transversely and provided at its forward end With spaced notches to form a core, a support positioned between the midial portions of said bars and spanning said slot, and means rigidly uniting the support With the bars.

In testimony whereof, I hereto affix my sig- ASHTON G. STEVEN SON nature.

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