US1676200A - Pouring shell for pipe molds - Google Patents

Description

July 3, 1928.

J. R. WOOD POURING SHELL FOR PIPE MOLDS Filed May 29, 1925 INVENTOR W, Q/l/u ATTORNEYS Fill Patented July 3, 1928.

UNITED STATES JOHN R. WOOD, OF HATBORO, PENNSYLVANIA, ASSIGNOR TO NEW PROCESS MULTI PATENT OFFICE.

CASTINGS COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

POURING SHELL FOR IE'IPE MOLD S.

Application filed May 29, 1925. Serial No. 33,607.

for cope molds and used with a drag mold shell or with a drag with the drag mold therein. It relates particularly to a shell for a cope mold for use with the pipe mold made according to my copending application Serial No. 33,606 tiled May 29, 1925.

According to my invention a shell is provided for use with the drag in place of the cope during casing of pipe in the mold, means being provided i'or positioning the shell properly in the drag and for clamping it thereon. This shell is provided with braces across the top for stiffening the shell and for holding the mold therein against raising thereof by the molten metal, the braces being made movable in their posltion on the shell for accommodating pouring gates which may be positioned at various parts of the mold according to the size and shape of the patternand so on.

In the drawing forming part of this ap plication Fig. 1 shows a perspective view in part of a drag for a pipe mold with both the drag and cope molds positioned therein and thereon and pipe cores properly positioned between the molds,

Fig. 2 is a perspective view in part showing the drag, cores, and mold of Fig. 1 with the cope mold shell mounted on the drag and about the cope mold and fastened to the drag, adjustable braces being shown on the shell, and

Fig. 3 is a perspective view in part show ing an embodiment of the cope mold shell for a pipe mold of my invention with position and clamping means thereon, with slots in an upper flange thereof for the fastening thereto of adjustable braces, and with ballround notches in the ends thereof corresponding with similar notches in the drag with which the shell is used, said notches being provided for holding therein the end of pipe cores mounted in the mold and entering therethrough.

In Fig. 1 of the drawing the drag is provided at each end with semi-circular notches 11, 11 for accommodating the, ends of the pipe cores 12, 12 which cores are mounted between the drag mold and the cope mold 13. The lugs 14, 14 having the holes 15, 15 formed therethrough serve for clamping a cope mold shell thereto as hereinafter described and said holes 15, 15 serve for positioning the said shell properly on the drag by receiving corresponding pins on said shell. The handles 16, 16 serve for the handy transportation of the drag, mold etc.

In Fig. 3 is shown the cope mold shell 20 which has formed at bottom edges of its ends the notches 21, 21 corresponding to notches 11, 1.1 in the drag and cooperating therewith to receive and clamp the ends of the pipe core 12, 12 (see Fig. 1.) Inwardly from the top edges 01 the shell 20 extends the rim flange 22 which has formed therein a plurality of slots 23, 23 which extend lengthwise thereof which slots serve to receive bolts for clamping braces at desired positions across the top 01 the shell as here inai'ter described. Along the sides of the shell 20 are provided lugs 24, 24 in which are rotatably mounted the shafts 25, 25 which carry the clamping members 26, 26 which serve to engage the lugs 14, 14 of the drag 10 for the clamping the shell 20 to drag 10. The handle 27 on each of said shafts 25 serve for the turning thereof into and out of the rotating position 01? said clamping members 26, 26. The lugs 28, 28 carry the downwardly extending pins 29, 29 which lit into the holes 15, 15 for the proper positioning of the shell 20 on the drag 10. The handles 31, 31 serve for the transportation of the shell.

In the use of the shell 20 as shown in Fi 2 it is placed on the drag 10 of Fig. 1 over the cope mold 13 and the handles 27, 27 turn down to engage clamp members 26, 26 with said lugs 14, 14, said pins 29, 29, engaging said holes 15 for the proper position of the shell on the drag. Before the placing of the shell 20 on the drag and mold however the braces 32, 32 are properly placed across the top of shell 20 in accord ance withthe positions of the muring gates 33, 33 in said mold and fastened to said flange 22 by the bolts 34, 34 extending therethroughand through said slots 23, 23. It can be seen that said notches 11 and 21 cooperate the ends of said pipe core 12, 12 securely between the shell and drag to hold them against movement by molten metal when poured into the mold. Said braces 32, 32 in a similar manner hold the cope mold against movement by such molten metal as well. as to stiffen the shell and thereby permitting it to be made with comparatively thin walls and so of light weight. The

new

comparatively greatspace between braces 32, 32 permit of ready passage ofhet gases' and vapors from the mold as do the Slots 34-, 34 formed" in the sides of shell 20.

ll. claim:

1. A shell for pipe cope molds comprising a longitudinal box open at its -top and hot-- torn, having flanges along the top edges of the shell having longitudinal slots therein adapted to acljustably receive braces across the top and having pipe core engaging re"- cesses formed at its en'cls.

shell for clamping onto a cooperating drag 20 In testimony whereof I hereto afilx my signature. i a JOHN R WOFJD.

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