US259161A - hbney insande - Google Patents

Description

(No Model.) A

J. H. INSANDE.

APPARATUS FOR GASTING PIPE ELBO WS. A

No. 259,161. Pa tented June6,1882. A

UNITED STATES PATENT OFFICE.

J. HENRY INSANDE, OF QUYAHOGA FALLS, OHIO.

APPARATUS FOR CASTING PlPE-ELBOWS.

SPECIFICATION forming part of Letters Patent No. 259,161, dated June 6, 1882.

' Application filed April 17,1882. (No model) To all whom 1t may concemr Be it known that I, J. HENRY INSANDE, of

- Cuyahoga Falls, in the county of Summit and pipe, especially stove-pipe elbows. Hereto-- fore such pipes have been cast in sand molds with cores either baked and resting in coreprints or built on core-bars supported by the flask. The first is obj eetion able because of the time and labor required to prepare the pores and the difliculty of retaining them accurately central during casting. The second is objectionable because separate bars require either separate flasks for each pipe or a complicated apparatus requiring each core to be separately handled.

The objects of my invention are to cast such pipe on green cores, to place and hold the cores accurately central, and to mold a nuniber of pipes in one operation. I attain these objects by the mechanism illustrated in the accompanying drawings, which represent an apparatus for casting stote-pipe elbows, and in which- Figure l is a plan of the upper half of aflask with core-su 'iporting parts in position, and exhibiting different stages of the process; and Fig. 2, two parts of the flask closed and containing the core-supporting apparatus in place.

The flask, which is of the ordinary kind, consisting of an upper and lower half, marked respectively A and B, has in contiguous edges of each half semicircular bearings G 0, so placed that the bearings in one register with the bearings in the other. Asupporting-frame, D, rests on turned journals in these hearings, and is provided on opposite sides of each arm with dovetail notches d d. Four core-barsonewhereof, E, is shown-rest in these notches, and areprovided with proj eeting points to cause the sand to adhere securely to them.

In operation the upper half of the flask is placed inverted upona follow-board and the four upper halves of the patterns placed therein, as indicated by G in quarter F of Fig. 1. The frame D is then placed in the bearings G G, the core-bars E placed in the notches d d, as shown in quarter H of Fig. 1, and sand rammed into thepattern around the core-bars. The lower halves of the patterns are then placed on the upper halves and sand rammed in from the ends, filling the pattern and forming the core, the ends of which are rounded oft and covered with parting sand. The lower half of the flask is then placed inverted on the upper, filled with sand, the bottom board placed thereon, and the whole turned upright. The upper half is then packed with sand, and the molds parted and the patterns removed in the usual manner. By this arrangement the cores are held in exactly the same relative position to the outside molds as when the patterns were in place with the same accuracy as though each core-bar had separate bearings. All are handled together, and the same apparatus serves to mold one or a number of pipes in one operation.

It will be apparent that the form of the supporting-frame D maybe changed to adapt it to different styles of pipe, and it is not essential that the core-bars be separable from the frame; but they may be attached to or be a part of it, and an equivalent device may be substituted for the semicircular bearings without departing from my invention.

I claim- In combination with a molding-flask, a coresupporting frame held in position by the flask by devices such substantially as'shown, and supporting the core-bars, substantially as and for the purpose hereinbcfore set forth.

In testimony that Ielaim theforegoingl have hereunto set my hand this 12th day of April, A. D. 1882.

J. HENRY INSANDE.

Witnesses:

O. P. HUMPHREY, DAYTON A. DOYLE.

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