US1339642A - Molding device - Google Patents

Description

E. L. B'AKER.

MOLDING DEVICE.

APPLICATION FILED FEB. 3, 1920.

1,339,642. y Patented May 11,1920.

EUGENE L. BAKER, OF TAUNTON, MASSACHUSETTS.

MOLDING DEVICE.

Specification of Letters latent.

Application filed February 3, 1920. Serial No. 356,041.

To all whom t may concern:

Be it known that I, EUGENE L. BAKER, a citizen of the United States, residing at Taunton, in the county of Bristol and State of Massachusetts,-have invented a new and useful Molding Device, of which the following is a specification.

T he structure forming the subject matter or" this application is a molding device, and the invention aims to provide novel means whereby the sand-carrying Jframes may be swung over onto the patterns, be swung ott the patterns, and be swung together, thereby to complete the mold without lifting the sand-carrying frames bodily, either with respect to the pattern frame or with respect to each other.

It is within the province ot the disclosure to improve generally and to enhance the utility ot devices of that type to which the invention appertains. c

Jn the accompanying drawings Figure 1 shows in plan, a device constructed in accordance with the invention; Fig. 2 is a side elevation, showing the structure as it will appear after one of the sand trames has been swung over on top of the other sand trame; Fig. 3 is a section taken approximately on the line 3-3 of Fig. 1 and showing one of the hinges; Fig. 4 is a section taken approximately on the line 4 -4 of Fig. 1, and showing another of the hinges; and Fig. 5 is a 'ragmental plan disclosing a moditication.

in carrying out the invention there is prf)- vided a main or pattern trame 1, within which may be located plates 2 heldin place by set screws 3, the plates 2 carrying patterns 4. The patterns 4 of one plate correspond to one-halt of the object to be cast, whereas the patterns of the other plate correspond to the other haltz of the object to be held on the although the expedicast. The patterns may be trame 1 in any desired way, plates 2 and the set screws 3 are an ent means to this end.

The invention comprises a pair of sand trames 5 and 6 disposed end to end and located along one side ot the pattern traine 1. The constituent parts of the sand Jframes 5 and 6 may be made to open, the said parts ot the trames being connected by hinges 7 and by hooks 8 adapted to coperate with keepers 9.

The sand frame 5 is vconnected with the 11 on the pattern frame l, and hooks 12 on the frame 5. The irst hinges which connect the frame 6 with the Aframe 1 may be in the form of ears 14 on the respective trames, theears being united by pivot pins 15. The

V ends of the frames 5 and6 are connected by second hinges 16 formed, if desired, like the hinges 10-12 The trames 5 and 6 and the pattern plates 2 may be provided with interengaging elements 17, in the form of pins and openings, adapted to prevent relative lateral movement between the frames 5 and 6 on the one hand, and the trame 1 on the other hand, when the frames 5 and 6 are swung over on top of the trame 1 as hereinafter described.

In practical operation, the frames 5 and 6 are swung together, on the hinges 10-12 and 15-14, on top of the frame 1 and the pattern plates 2. rlhe sand is then rammed into the frames 5 and 6. The frames 5 and 6 then are swung ofi the frame 1 on a pallet 30, shown in Fig. 2. The frame 5 is swung on the hinges 16 on top of the frame 6. The frames 5 and 6 then are opened at the hinges '7, and the complete mold, cleared from the frames 5 and 6, is carried away to the point of casting. It is to be observed that since the hinges which connect the frame 5 with the frame 1 are of the forni shown in Fig. 3, the frame 5 will be disconnected automatically roin the frame 1 when the 'frame 5 is swung over on top O'li the frame 6.

At times, it may be desirable to effect the casting operation while the sand is inclosed within the frames. Then, referring to Fig. 5, the trames, such as the frame 6a are fashioned solid, the hinges 7 being omitted. After one of the sand frames has been folded over on top of the sand frame 6LL in Fig. 5, the frame 6a is disconnected from the pattern frame 1n. To facilitate this operation, the hinges 25 of Fig. 5, corresponding to the hinges 14.--16 oi Fig. 1, are constructed like the hinges 10-12 of Fig. 3.

The various hinges hereinbefore alluded to may be constructed in a variety of ways, the object in view being to permit, iirst, the frames 5 and 6 to be swung over on top of the frame 1 and, second the frames 5 and 6 have been swung olf the frame 1 to permit Patented May 11, 1920.

the frame 5 to disengage itself automatically from the frame l and to permit the frame 5 to be swung over on top of the frame 6.

The Construction of the device is such that the work incident to handling the various frames lis cut down appreciably. Under the old procedure7 the frames 5 6 were first lifted bodily upon the frame' l, then lifted bodily off the frame l and finally lifted one on top of the other. The structure shown in .the drawing, therefore, does away with three lifting operations calling for the ex- ,penditure of considerable strength.

Having thus described the invention, what is Claimed is In a device of the class described, a pattern frame; .a pair of sand frames; first hinges uniting the sand frames with the pattern frames whereby both sand frames may be swung on top of the pattern frame and beswung off the pattern'frame, one of the first hinges comprising separable parts whereby one sand frame may be swung on top of the other sand frame after bothsand frames have been swung off the pattern frame; and a second hinge connecting the sand frames and permitting one sand frame to be swung on top of the other sand frame as aforesaid. l

In testimony that I claim the foregoing as my own, I have hereto afIiXed my signature Y in the presence of two witnesses.

EUGENE L. BAKER. W'itnesses GEORGE U. VELLS, ALBERT A. HALL.

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