US1050145A - Mold. - Google Patents

Description

P. V. KORNEFFBL & O. B. HIITT.

MOLD. I

APPLICATION FILED APE.27, 1911.

1,050,145, Patented Jan.14,1913.

2 SHEETS-'SHEET 2.

Witnesses Invent Attorneys UNITED STATES PATENT QFFICE.

PAUL V. KORNEFFEL AND OTTO E. I-IIITT, OF LEWISTON, MAINE.

MOLD.

Specification of Letters Patent. I

Patented Jan. 14, 1913.

Application filed April 27, 1911. Serial No. 623,776.

T all whom it may concern:

Be it known that we, PAUL V. KoRNnrrEL and Orro E. I-Irrrr, citizens of the United States, residing at Lewiston, in the county of Androscoggin, State of Maine, have invented a new and useful Mold, (Case 13,) of which the following is a specification.

The device forming the subject matter of this application, is a molding structure, adapted to be employed for the fashioning of monolithic covers for the body portions of receptacles. The device herein disclosed is adapted to be used in connection with a molding structure for the fashioning of the body portions of such receptacles, the device for the fashioning of the body portions of the receptacles, constitutin the subject matter of my co-pending appllcation Serial No. 623,425.

It is the object of this invention to provide a mold, consisting of a series of superposed frames which may be assembled and disconnected readily, and to provide novel means for holding the core properly spaced with respect to the mold.

WVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without 35 departing from the spirit of the invention.

In the accompanying drawings,Figure 1 is a top plan, parts being broken away;

Fig. 2 is a longitudinal section of the device depicted in Fig. 1; Fig. 3 is a transverse 40 section on the line AB of Fig. 1, parts appearing in elevation; Fig. 4 is a transverse section, fragmental in nature, and taken upon the line CD of Fig. 1; and Fig. 5 is a fragmental transverse section of the cover which the device herein disclosed, is adapted to fashion.

The structure forming the subject matter of this application, consists of two primary elements, one being designated generally as the mold, and the other being designated generally as the core.

The mold, in its turn, is a composite structure, and comprises a base 1, which may be supported upon transverse cleats 2, a lower frame 3 resting upon the base 1, an intermediate frame 4 resting upon the lower frame 3, and an upper frame 5, resting upon the intermediate frame 4. These details will be best understood from an examination of Fig. 3, and, referring to this figure, it will be seen that a core 6 is held suspended above, and within the contour of, the centrally depressed mold formed by the cooperating frames 3, 4 and 5.

Passing now to a detailed description of the several frames which go to make up the mold, it will be seen that the lower frame 3 comprises sides 7 and ends 8, mitered together, as shown at 11. The frame forming members 7 and 8, upon their inner edges, are beveled off as shown at 9, toward the central portion of the base 1.

The invention further includes a cover 10, preferably of metal, this cover 10 extending across the central portion of the base 1, and thence upwardly, and outwardly, over the beveled faces 9 of the frame 3, to the periphery of the mold.

The intermediate frame 4 comprises sides 12 and ends 14, mitered together as shown at 15, the frame 4 being surrounded trans versely, by a metallic covering 16. The frame 4 is considerably narrower than the frame 3, and the inner edge of the frame 4 may be headed in any desired form.

The upper frame 5 comprises sides 17 and ends 18, mitered together as before. This frame 5 preferably is fashioned from metallic bars. The frame 5 is considerably wider than the frame 4, and slightly narrower than the frame 3. One edge of the covering 16 of the frame 4 is bound beneath the frame 5, the other edge of the covering 16 being bound by the frame 4, against the covering 10. In order to hold these several frames together, and upon the base 1, securing elements 19, preferably taking the form of bolts, are extended upwardly through the base 1, and through the frames 5, 4 and 3, the bolts passing likewise through the coverings 16 and 10. The bolts 19, at their lower ends, are threaded to receive wing nuts 21, washers 20 being interposed between the wing nuts and the base 1. In the upper ends of the bolts 19 there are openings adapted to receive pins 22 which, in their turn, engage the upper face of the upper frame 5. The core 6 bulges downwardly in its central portion, as denoted by the numeral 40. The core 6 preferably extends downwardly within the frames 5 and 4, to a point adjacent the plane of the upper face of the lower frame 3, as Figs. 2 and 3 will make manifest. The core 6 is spaced peripherally from the several frames. In order to maintain the core 6 properly positioned, and to secure uniformity in the relations between the core and the mold, a supporting device for the core is provided. This supporting device preferably comprises a series of arched bars 23, extended transversely of the structure, the bars 23 ordinarily being angle members. The ends of the bars 23 engage the outer surface of the mold, so that the core 6 will be at all times properly centered. In the ends of the bars there are openings adapted to receive eyes 24, formed in the ends of screws 25, the screws 25 being thus pivotally connected with the bars 23, so that the threaded ends of the screws may be swung between fingers 26, formed in the outer ends of cleats 27, secured to the lower face of the base 1. Upon the threaded ends of the screws 25, are mounted lever nuts 28, adapted to engage beneath the fingers 26.

The core (3 is a composite structure, and comprises a body 29, surrounded by a metallic covering 30, the edges 31 of which are bound beneath one flange of each of the angle members 23, securing elements 32 being extended through these flanges of the angle members, and through the edges 31 of the covering 30, into engagement with the body 29 of the core 6. Projecting inwardly from the ends of the bars 23 are feet 33, adapted to engage the upper face of the top frame 5. The cooperation between the feet 33 and the upper frame 5, serve to space the core 6 properly from the bottom of the mold.

It will be seen, in practical operation, that. through the instrumentality of the bolts 19, the several frames 3, 41 and 5, together with the coverings 10 and 16, may be readily assembled, to form the mold portion of the device. The bars 23, with the core 6 secured thereto, may be placed upon the mold, the feet 33 resting upon the top of the mold, and the ends of the bars 23 engaging the periphery of the mold. Thus, the core 6 will be maintained in proper position, both vertically and horizontally. The screws 25 may be swung between the fingers 26, and when the lever nuts 28 are rotated, the core 6 will be bound rigidly in place upon the mold. The concrete will fill the space between the core and the mold, and when the concrete is struck off, along the upper face of the upper frame 5, the finished productwill have the general appearance depicted in Fig. 5. Referring, then, to Fig. 5, it will be seen that the covering 10 will serve to fashion the bulged top 34; of the cover, the intermediate frame 4 forming the molded head 35 at the periphery of the cover, the top frame 5 serving to fashion the shoulder 36 in the cover, the striking off of the material, flush with the upper frame 5 serving to form the face 37 of the cover, and the downwardly bulging portion 4C0 of the core 6 serving to form the concavity 38 in the lower face of the cover.

Having thus described the invention, what is claimed is A device of the class described comprising a mold,centrally depressed; arched bars extended transverselyof the mold, and having, adjacent their ends, inwardly projecting feet adapted to rest upon the top of the mold, the ends of the bars engaging the outer faces of the mold; a core carried by the bars, within the contour of the mold; securing members pivoted to the ends of the bars; cleats secured to the mold, and adapted to receive the securing members; and elements upon the securing members, adapted to engage the cleats, and to draw the feet against the mold.

In testimony that we claim the foregoing as our own, we have hereto afliXed our signatures in the presence of two witnesses.

PAUL V. KORNEFFEL. OTTO E. HIITT. Witnesses Gnome PATTLE, Janus E. SCOTT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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