US1622750A - Bushing mold - Google Patents

Description

March 29 1927.

A. D. WILLIAMS ET AL BUSHING MOLD Filed April l2 1926 ATTORNEYS meme.: Mu. '29, 1921.

UNI-'Veo` S'IATESl AUs'rIN n. wILLIAns AND rnANxB. emmer, or sAcnAIIEN'ro, CALIFORNIA.

Eusanio nenn.

Application Med April 12; 1926. Serial No. 101,330.

Our invention relates .to the` class of molds, and `is articularly, though not necessarily, intended for casting bushingl; especial y bushings vfor connecting rod arings-and the like. v

The essential object of our invention .is to provide a mold which may be made ofcast iron or other suitable material, and the members of which ma be readily and firmly aslo sembled repeated y for use, and 'easily and effectively parted or dismembered to release the molded product, without injury or damage either to the product or to the members of the mold. l

l5 To this end our invention consists in the 'novel 'mold which we shall hereinafter describe, by reference to the accompanying drawings, in which- Fig. 1 is a top plan view of our mold.

Fig. 2 is a side elevation of the same.

Fig.'4 3 is a side elevation ofthe base member of the mold.

Fig. 4 are views inside, front, and end elevations res ectively` of the eye-bolts which are fitted tothe body member? 1 is the base member of the mold, shaped to function at one end for the reception and support of the members which form the mold-space, and'at the other end for the reception and support of the supply hopper, or, as it is known in the art, the gate member through which the molten metal is poured@ The base member 1 on its upper face is formed as shown in Fig. 3 with raised gudeboss 2 and with a recess 3. Theupper face of said member 1 is also formed with a channel or groove 4 for the flow of the metal when pouring. f v

5 is vthe body member of the mold, constituting the outer -wall of the mold space. It lits down over the guide boss 2 of base member 1 and separably rests upon said member. If, as indicated herein in Fig. 2, the bushing to bemolded is to have an end flange, the lower end of the body member 5 is properly shouldered as shown at 6. y

,The body member 5 is formed with ears '2'` into which are fitted the eye-bolts Y8, for the reception'of suitable chains, not shown, for lowering the body member to and lifting it from'its seat on the base member.

9 is the lcore member which constitutes the inner wall ofthe mold-s ace. It is composed of a plurality `of sections, segmental in cross-section and assembled in alternating' tween said ycore'member and the body mem- 4.ber 5, ls the mold-space 15, which at its 'member is in ade in two -sections,"as shown inl Fig. 1, and it separably restsptupon the base n Isaid base memberoverlying t oppositely tapering relation, readily collapsible annulus. s

Thecore member 9 is separably seated in the recess 3 of the base member 1, and bethus forming a bottom is in communication with the pouring groove 4 of the Abase member.

1 0 is the hopper member or gate into which the molten metal is poured. This member: in such position that it communicateg with the underlying groove v4y in said base member. V

The sections of the hopper member are held together by the clamp-yoke 11 and-theassociated wedge 12, said yoke resting on lugs lpformed on the sidefaces of the hopper sections, as shown in Fig-1? :2. Pulling lugs 14 are 'also formed on the section sides.

The several members and parts of the niold being assembled as shown in Figs. 1

.and 2, the molten metal is poured into the hopper or gate 10 and flows through said so gate and through the groove 4 to the moldgspace, in which and in the hopper it rises to the desired. level. When the metal is cooled, the wedge 12 is knocked out, thereby releasing the clamp voke 11, and by pulling force ap lied to the lugs 14 the sections of the opperlO are parted and removed. Then the hoisting chains are appied to the eye-bolts 8, and the body memi' 5, together with the core member 9 and the whole molded product are lifted away from the base member. Then the core member 9 is collapsed by driving apart its ta-v pered sections; and, finally, that rtion of the molded product foreign to t e desired bushin is sawed oil. 7

It will thus be seen that the mold is adapted for ready, convenient and elective assembling and dismembering, which are the 0bjects for whichit is designed.

We claim :-v 1.* A mold comprising a base member hav- 1n in its upr surface a pouringchannel; a y mem r separably su ported uponrv Y lie inner portionof saidchannel and constituting the outer wall of themold space; core member, separably supported 'upon the base member -and constitutingptheinner wall'of the mold space, lsaid mold spaceat its base communi Il.

eating with the inner end of the pouring channel of the base member; and a hopper" member separably supported unon said base member overlying and in communication with the outer portion of the pouring channel thereof.

A mold comprising a base member having in its upper face a recess and a guide boss about said recess, and having also in its uppei` surface a pouring channel; a body member separably supported upon said base member about said guide boss overlying the inner portion of said channel, and constitut# ing the outer wall of the mold space; a collapsible core member teparably supported within the recess of said base member and constituting the inner Wall of the mold space; said mold space at its base communieating with the inner end of the pouring channel of the base member; and a collapsible hopper member separably supported upon said base member overlying and in communication with the outer no1-tion of the pouring channel thereof.

3. A mold comprising a base member hav ing a pouring channel; abody member and a core member separably supported upon said base member and spaced apart to form the mold space between them, said space communicating with the pouring channel in the base member; a sectional hopper wears@ clamping the sections of the hopper member together; and a Wedge for tightening said yo e.

4. A mold comprising a base member having in its upper face a recess anda guide boss about said recess, and having also a pouring channel; a body member separably supported upon Said base member about said guide lboss and constituting the outer Wall of the mold space; a core member composed of a plurality of longitudinally tapered sections assembled in alternating reversed i'elation, said core lnember being separably supported Within the recess of the base member and constituting the inner wall of the mold space, said mold space communicating with the pouring channel of the base member; a hopper member composed of sections separubly supported upon said base member in communication with the pouring channel thereof; andy a detachable yoke and Wedge for holding the sections of the hopper member together.

In testimony whereof we have signed our names to this specification.

AUSTIN D. WVILLIMS. FRANK B. GILLETT.

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