US557190A - crecelius - Google Patents

Description

{No.Mode'L) I 4 Sheets-Sheet 2.

-L. J. GRE OELIUS. MOLD FOR CASTING METAL SKELETON FRAMES.

No. 557,190. Pa'tentedMar. 31, 1.896.

zzai' zgg @2125, 02am ANDREW B4GRM1AM4 PHOTO-UYHO.WASNINGTON.D C.

4 Sheets-SheetB.

Patented Ma'r. 31, 1896.

L. J; CRECELIUS. MOLD FOR CASTING METAL SKELETON FRAMES.

(No Model.)

4 Sheets-Sheet 4.

(No Model.)

L. J. ORECELIUS. MOLD FOR CASTING METAL S-KELETDN' FRAMES. No. 557,190.-

Patented Mar. 31,1896.

ANDREW BLIMIMIL PHOTOLH'HQWASHINGTON. D Cv UNITED STATES PATENT OFFICE.

LOUIS J. CRECELIUS, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO IVILLIAH GRAYSON, OF SAME PLACE.

MOLD FOR CASTING METAL SKELETON FRAMES.

SPECIFICATION forming part of Letters Patent No. 557,190, dated March 31, 1896.

I Application filed April 1, 1895. Serial No. 544,087. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS J. CRECELIUS, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Molds for Casting Metal Skeleton Frames; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

The object of this invention is to provide means for casting bifurcated skeleton metal ingots.

My invention consists in the devices and combinations of devices hereinafter fully set forth and claimed.

Myinvention also consists of and comprises certain details of construction, arrangement, and combination of elements hereinafter set forth, pointed out in my claims, and illustrated by the accompanying drawings, in Which Figure 1 is an interior face elevation of one section of the mold on the indicated line 1 1 of Fig. 2. Fig. 2 is a top view or plan of the complete mold. Fig. 3 is an end elevation of the complete mold, as indicated by arrow in Fig. 2. Figs. 4, 5, and 6 are detail sectional plan views on the line 4 6 of Fig. 1, illustrating the construction and manner of packing of the mold-joints. Fig. 7 is an elevation, partly in section, illustrating the mold containing the cores and ingot as in practical use. Fig. 8 is a side elevation of the mold proper, one only of the binding-clamps being positioned. Fig. 9 is a sectional plan of the mold on the indicated line 9 9 of Fig. 8. Fig. 10 is a transverse sectional elevation of the mold on the indicated line 10 10 of Fig. 8. Figs. 11, 12, and 13 are detail transverse sectional views of the bifurcated portion of the frame on the indicated lines 11 11, 12 12, and 13 13, respectively, of Fig. 8. Fig. 14 is a transverse sectional elevation in detail of the pouring-gate of the mold on the indicated line 14 14 of Fig. 8. Fig. 15 is a detail trans- 5o verse sectional view on the line 15 15 of Fig.

8, illustrating the manner of clamping and means employed to clamp the members of the mold in rigid yet detachable contact. Fig.

16 is a perspective illustrating the ingot as Withdrawn from the mold and carrying the gates and cores. Fig. 17 is a detail side elevation, partly in section, of portions of the ingot. Fig. 18 is a plan, partly in section, on the line 18 18 of Fig. 17. Fig. 19 is a detail sectional elevation on the line 19 19 of Fig.

18. Fig. 20 is a detail elevation showing manner of removing keys. Fig. 21 is a detail sectional plan on line 21 21 of Fig. 17.

The mold illustrated, described and claimed 6 5 in this application is especially designed for giving form and consistency to an ingot such as is shown in Fig. 16, which ingot comprises vertical tubular bars A and B, a solid top bar 0, forming oblique angles with the bars A B, a tubular bottom bar D, forming oblique angles with the bottom ends of the tubular bars A B, solid divergent legs E F, forming oblique angles with the tubular bar B, solid divergent braces 11 I, forming oblique angles with the tubular bar B and the legs E F, solid cross-bars J K, Fig. 7, respectively connecting the legs E F and the braces II I adjacent to the bar B, and sullage-pieces L M, connected to and rising from the bar 0 and legs E F adjacent to the bar B, the bars, braces and legs each integrally joining an adjacent bar, brace or leg, and conj-unctively forming a diamond-shaped frame having a stay in its shortest diameter and bifurcated at one end, which ingot or frame is homogeneous in its consistency, of superior strength and lightness, being preferably made of aluminium or aluminium alloy.

Properly-to form the above-described frame 0 or ingot by a process of casting I have provided a mold to engage and give form to the outer surface of said frame by receiving molten metal therein, which mold, for the present purposes, may be composed of a solid sub- 5 stance of permanent characteristics, such as metal.

The material of which the mold is formed should be fusible at a temperature materially higher than the fusing temperature of the ingot.

The mold comprises four sections 31 32 33, the section 30 being shaped to form the outer configuration of one side of the bars A l3 0 D, leg F, and brace I, as shown in Fig. 1. The section 31 is shaped as a partial counterpart to the section 30 and forms the outer configuration of the opposite sides of the bars A B C D, leg E, and brace II. The section 3 is shaped in the form of two legs of a triangle and forms the outer configuration of the sides of the leg F and brace I opposite to the section 30. The section is shaped like the section 32 and forms the outer configuration of the sides of the leg E and brace II opposite to the'section 31.

By reference to Figs. 1, 2, 3 and 9 it will be seen that portions of the sections 30 31 of the mold are in parallel planes and formed with matching faces designed for engagement to inclose the space in which the bars A, B, O, and D are to be cast, and that integral portions of said sections are in divergent planes and formed with faces matching with faces on the sections 32 33, respectively, which divergent portions of the sections 30 31 are employed conjunctively with the said sections 32 to partially inelose the space within which the legs E F and braces H I are to be cast.

Steady-pins 34 are positioned in the section 30 and designed to enter dowel-holes in the sections 31 and 32, whereby lateral contacting movement of the sections relative to each other is prevented.

Shoulders 35 36 are formed in the divergent portion of the section 30 of the mold, Figs. 1 and 2, against which shoulders the extreme ends of the section 32 abut, and shoulders 37 38 are formed in the divergent portion of the section 31, against which the extreme ends of the section 33 abut, Figs. 2 and Shoulders 39 40 are formed on the end portions of the section 32 at a slight distance from the shoulders 36, and shoulders 41 42 are formed on the end portions of the section 33 at a slight distance from the shoulders 37 38, and keys 43 44 are seated in the spaces between said shoulders and rigidly bind the end portions of the sections 33 to the divergent portions of the sections 30 31, Figs. 3, 7, 8, and 9.

Recesses 45 are formed in the outer faces cf the sections of the mold, Figs. 8 and 15, and clamps 46 are provided, which clamps have each a stud to enter one of said recesses, and a screw 47, seated in said clamp opposite said stud, to enter a recess on the opposite section and bind said sections securely together.

Gates 48 49 are formed on the sect-ions 3O 31 of the mold, one-half of each gate being formed on each section,and communicate with the space of the mold adjacent to the bar B and the upper ends of the legs E F, either of which gates may be employed for ingate or vent, as desired. Small vent gates or passages 50 51 are formed in the mold and afford communication between the gates 43 49 and the upper end of the space in which the bar B is cast.

Eye-plates 52 53 are formed on or fixed to and extend upwardly from the gates 48 49, to which plate securance is had by tackle wherewith to transport the mold.

A core 54 is vertically positioned between the sections 30 31 in the space in which the barA is to be cast, which core rests in prints 55, formed in the mold at either end thereof. A core 56 is positioned in the mold where the bar D is-to be cast and rests at its lower end in a coreprint 57, formed in the mold, a dowelpin 58 being formed on its upper end, which dowel-pin rests in a recess in the lower end portion of the core 54. A core 59 is vertically positioned in the mold where the bar B is to be cast. A dowel-pin 60 is formed on the lower end of the core 59and rests in a recess formed in the lower end portion of the core 56, and the upper end of said core 59 rests in a core-print 61, formed in the mold between the gates 48 49.

The cores 54, 56, and 59 are preferably made of metal tubing, slightly tapered to facilitate withdrawal from the ingot.

The sections of the mold have divergent faces extending from the contacting or en gaging faces to the outer edges of said sections, and cords 62 are positioned between said di vergent faces of the sections adjacent to the said engaging faces, which cords are retain ed in position by lute 63 interposed between said divergentfaces outside of and in engagement with said cords. The cords 62 are preferably made of asbestos and cotton, which will carbonize solid under the influence of great heat, and the lute is preferably made of asbestos and fireclay, which will resist great heat without cracking or scaling.

When it is stated that cotton and asbestos will carbonize solid, it is meant that cotton is employed as a medium to retain the asbestos in powdered form in place during the operation of packing, and that when the mold is heated the cotton will carbonize and remain in place with the asbestos instead of pulverizing or forming a fine ash and falling out of place.

A core is provided for forming the space inclosed by the convergent end portions of the legs E F and the cross-bar J, which core com prises four keys 64 65 66 67, all of which abut against the key 43 at one end and are thereat coneaved to engage the convex edge of said key, the upper ends of said keys being confined in a space 68 in the mold adjacent to the upper end of the core 59. The top and bottom faces of the keys 64 65 66 67 engage throughout part of their lengths with the adjacent interior faces of the mold, and recesses 69 formed in the mold permit the flow of molten metal beyond said keys to form the legs E F.

If the gate M is employed as the pouringgate, the communication direct from said gate to the mold in which the legs E F are cast would be cut off, were it not for the provision of the recesses 69, by the keys 64 66 67. Therefore said recesses are provided in order that, in pouring, the molten metal may be deflected by said keys to one side and flow into the mold to form said legs and the cross-bar J.

Lugs 7 O are formed on the top faces of keys 64 and 65 and the bottom faces of keys 66 and 67 and engage corresponding recesses formed in the mold to temporarily retain said keys against longitudinal movement until the metal is poured. The horizontal mean or contacting faces of the keys 64 65 66 67 are recessed at 71 72 to provide a space in which the cross-bar J is cast, and said keys are also concaved at their outer faces along the horizontal parting-line at 73 74, Fig. 12, to form the configuration of the adjacent faces of the legs E F.

A core is provided for forming the space inclosed by the convergent end portions of the braces II I and the cross-bar K, which core comprises four keys 75 76 77 78, constructed identically with the keys 64 65 66 67, and positioned in the lower portion of the mold in like manner as the other said keys are located in the upper portion of the mold.

In practical use the interiors of the mold-sections are thoroughly cleaned and coated with a thin solution of graphite or similar material, which is allowed to dry. The cores 54, 56, and 59 are then placed in position, which cores are first coated with a thin solution of graphite or similar material. The section 32 is then located on the section 30 and clamped thereto, and the core-keys 65 66 and 76 77 placed in position. The section 33 is then located on the section 31 and clamped thereto, and the core-keys 64 67 and 75 78 placed in position. The section 31 is then placed in proper contact with the section 30 and clamped thereto and the keys 43 44 driven to place. The cords 62 and lute 63 are inserted between the divergent faces of the sections and closely packed therein. The mold is now ready to be employed in casting the metal, which castin g of the metal is performed according to certain processes described in Letters Patent of the United States, granted to me on the 9th day of April, 1895, No. 537,277. After the ingot is cast and cooled it is withdrawn from the mold by removing the keys 43 44 and the clamps, separating the sections by lateral movement, sawing or otherwise severing the lugs cast in the recesses 69, sawing or otherwise severing the sullage-pieces, and removing the core-keys 64 65 from the keys 66 67 to free the cross-bar J, and removing the corekeys 75 76 from the keys 77 78 to free the cross-bar K, the division of the core-keys being clearly illustrated in Fig. 20. The cores 54, 56, and 59 are then withdrawn longitudinally in inverse order.

It will be observed that the shell of the mold a supplemental mold-section for each diver- 8o gent part of the main section, substantially as described.

3. A mold composed of sections having plane faces in contact, the edges of said sections beyond the plane faces being divergent to form V-shaped channels to the outer edges of the mold to receive a packing, substantially as described.

4. A mold formed. in four sections, provided with mold-cavities, clamped together, and c composed of two parallel parts, divergent bifurcated legs connected respectively to the parallel parts and caps clamped to said legs, substantially as described.

5. In combination with a mold, a series of o 5 removable core-sections in contact, one of said sections being supported at each end in the mold-frame, and the remaining sections being supported at one end by the frame and at the other end by the adjacent core-section,

substantially as described.

6. A mold of the class described comprising the section 30 and the section 31 arranged for contact throughout a portion of their lengths and diverged throughout the remainder of their lengths, and cap- sections 32, 33 shaped for positioning between and contact with the divergent portions of the sections 30, 31, respectively, substantially as described.

7. In a mold of the class described the sections 30, 31, having the core-prints 55 55, 57, and 61, the core 54 mounted in the core-prints 55, 55, the core 56 mounted at one end in the core-print 57 and having a dowel-pin 58 on the other end to engage the core 54, the core 59 mounted in the core-print 61 at one end and having a dowel-pin 60 at the other end to engage the core 56 and means for connecting said sections rigidly, yet detachably.

8. A bifurcated mold having the sections 30, 31 with divergent port-ions, the sections 32, 33 interposed between said divergent portions of the sections 30, 31, shoulders 35, 36, 37 and 38 formed on said divergent portions, shoulders 39, 40,41 and 42 formed on the end portions of the sections 32, 33, at slight dis tances of separation from the first shoulders, and keys 43, 44, inserted between the sections 32, 33, and engaging said shoulders.

9. In a mold of the class described, the sec I c tions 30, 31 having divergent portions, sections 32, 33 interposed between said divergent portions of the sections 30, 31, core- keys 64, 65, 66 and 67 having the recesses 71, 72 wherein to cast a cross-bar J and recesses 73, 74 to form the configuration of portions of legs E, F, and core-keys 75, 7 6, 78 having recesses in which to cast a cross-bar K and recesses in which to cast the adjacent side portions of braces I, H, which core-keys each have a lug 70 designed for engagement with adjacent faces of the mold, and keys 43, L4 arranged T0 for engagement with the mold and keys 4-3, 4:42, arranged for engagement With the sections of the mold and the said core-keys.

LOUIS J. ORECELIUS. Vitnesses:

CHARLES PIOKLES, A. BORLINGI-IAUS.

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