US2854725A - Cores - Google Patents

Description

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` V CORES Filed May 1, 1956 4 Sheets-Sheet 4 United lStates Patent O l l CORES Walter Bast, Cicero, and Walter 0. Blasius, Forest Park, Ill., assignors to Wilbert W. Haase Co., Forest Park, Ill., a corporation of Illinois Application May 1, 1956, Serial No. 581,994

2 Claims. (Cl. 25-128) This invention relates to cores and, more specifically, to cores of the type particularly well adapted for use in molding-forms for burial vaults, septic tanks, hollow blocks and the like.

It will be understood that reference hereinafter to burial vaults, and the like, is merely by way of illustration and not by way of limitation and that forms embodying the principles of our invention may be constructed and used for forming other articles without departing from the purview of our invention.

It is `an object of our invention to afford a core, of the aforementioned general type,embodying walls which may be moved relative to each other in a novel and expeditious manner.

Another object is to enable a core to be contracted and expanded in a novel and expeditious manner.

Another object is to afford a novel core which embodies a novel hinged construction.

A further object of our invention is to afford a novel core wherein side walls thereof are hinged intermediate their ends in a novel and expeditious manner.

Yet another object of our invention is to afford a novel core embodying side walls which are hinged to each other and intermediate their ends in a novel and expeditious manner.

A further object is to provide a novel core of the aforementioned type which is relatively simple and easy to operate.

Other and further objects of the present invention will be apparent from the following description and claims and are illustrated in the accompanying drawings, which, by way of illustration, show a preferred embodiment of the present invention and the principles thereof and what we now consider to be the best mode in which we have contemplated applying these principles. Other embodiments of the invention embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in the art without departing from the present invention and the purview of the appended claims.

In the drawings:

Fig. 1 is -a longitudinal sectional view of the core embodying the principles of our invention and showing the core mounted in operative position -in a form for molding burial vaults;

Fig. 2 is a sectional view taken substantially along the line 2-2 in Fig. 1;

Fig. 3 is a sectional view similar to Fig. 2 but showing the parts of the core in dierent operative position;

Fig. 4 in a detail sectional view taken substantially along the line 4-4 in Fig. l; and

Fig. 5 is a detail sectional view similar to Fig. 4, but showing the parts in different operative position.

To illustrate-the preferred embodiment of our invention, a core C, embodying the principles of our invention, is shown in the drawings mounted on a base B, within yao burial vault box V.

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Patented Oct. 7,' 1958 The core C is substantially rectangular in shape, Figs. 1 and 2, and embodies two end walls 11 and 12, and two side walls 13 and 14. The walls 11-14 are transversely split throughout their width, intermediate the ends thereof, along lines 16, 17, 18, and 19, respectively, to thereby divide the walls 11-14 into two end portions 11a and 11b, 12a and 12b, 13a and 13b, 14a and 14h, respectively. Flanges 21 project inwardly from the upper end portions of the walls 11-14, and a substantially rectangular shaped top wall 22 is loosely mounted on the anges 21, Fig. 1.

The split lines 16-19 in the side walls 11-14 extend across the width of the walls 11-14 perpendicularly to the length thereof. The split lines 16-19 are preferably triangular in cross section, Figs. 2 and 4, being so shaped that the inner end of the end portions 11b, 12b, 13b and 14b of the walls 11--14 are square, and the inner ends of the end portions 12a, 13a and 14a are tapered or beveled inwardly. Withv this formation of the split lines 16-19 it will be seen that when the opposite -end portions of the walls 11-14 are disposed in alignment with each other, the outer faces of the walls 11-14 present substantially smooth surfaces, the inner ends of the opposite end portions of the walls 11-14, respectively, being disposed in abutting relation to each other at the outer faces of the walls 1114.

Four hinges 24 are mounted on the inner faces of the walls 11--14, Figs. l, 2, 4, and 5, with each of the hinges 24 disposed in overlying relation to a respective one of the split lines 16-19, in position to hingedly connect together the opposite end portions of the side walls 11-14, respectively. The hinges 24 are each idenf tical in construction, Figs. 1 and 2, and, as best seen in Fig. 4, each comprises a double-hinge having two hinge pins .26 and 27 disposed in spaced parallel relation to each other. Two substantially fiat hinge plates 29 and 30, having collars or eyes 29a and 30a, respectively, Figs. l and 4, formed on one en d thereof are mounted on the hinge pin 26 with the pin 26 extending through 'the collars 29a and 30a which are disposed in stacked rela,- tion relative to each other. Similarly, two substantially flat hinge plates 32 and 33, having eyes or collars 32a and 33a, respectively, Figs. 1 and 4, formed on one end thereof, are mounted on the hinge pin 27 with the pin 27 extending through the collars 32a and 33a which are disposed in stacked relation to each other. The hinge plates 29 and 30 are disposed on the pin 26 in such position that they normally are disposed in alignment with each other, and the hinge plates 32 and 33 are similarly disposed on the hinge pin 27, Fig. 4.

Each of the hinge plates 29, 30, 32 and 33 has two oppositely disposed faces F and R, Fig. 4, the collars 29a, 30a, 32a and 33a projecting laterally from the faces F of the hinge plates 29, 30, 32 and 33, respectively. The faces F of the hinge plates 30 and 32 are disposed in juxtaposition to each other and are secured in such position by suitable means such as, for example, welding, to thereby secure the hinge plates 29, 30, 32 and 33 of each double hinge unit 24 together and thereby afford a hinge unit which is pivotable about both of the pins 26-27, with the pins 26 and 27 projecting laterally from opposite sides of the hinge unit 24.

The hinge unit 24 which is secured to the side wall 13, Fig. 4, has its hinge plate 33 secured to a spacing block 35 by suitable means such as, for example, welding, with the face F of the hinge plate 33 disposed in juxtaposition to one face of the spacing block 35. The spacing block 35 is secured to the inner face of the end portion 13b of the side wall 13 by suitable means such as welding with the face of the block 35, opposite to the face to which the hinge plate 33 is secured,A disposed in juxtaposition to the inner face of the end portion 13b. The spacing block 35 is .disposed in spaced relation to the split .line 18, and is preferably of such thickness that the collars 32a and 33a are disposed `in laterally abutting engagement with the inner face of the Aend portion '13b of -the side lwall `13 at the split line 18.

The hinge plate 29 is -likewise connected to another spacing block 36 iby suitable means such as welding, with the face R of the hinge plate 29 disposed in juxtaposition to one face of the block 36. The block 36 is secured to the inner face of the end portion 13a of the side wall 13 -by suitable means such as welding, with 4the face of the block 36, opposite -to the face to which the hinge plate 29 is secured, fdisposed in juxtaposition to the inner face of the end portion 13a. The block 36 is disposedin spaced relation to the split :line 18, and is of such thickness that when the end portions 13a and 13b of the side Wall '13 are disposed in alignment with each other, the hinge pin L26 is supported in such position relative to the hinge pin 27 that the hinge plates 29 and 30 are disposed in alignment with each other and the 4hinge plates 32 and 33 are similarly disposed in alignment with each other.

The other :hinges 24 are mounted in the same manner on the side walls 11, 12 and 14, respectively, Figs. l and 2.

The side walls 11-14 are normally disposed in straight upright position, with the opposite ends of the walls 11 and 12 disposed in abutting engagement with the adjacent ends of the walls V13 and 14, Fig. 2. The ends of the Walls 11--14 are beveled inwardly so that the junction between the adjacent walls 11-14 presents a substantially smooth outer surface.

The end -portions ofthe walls 11 and 12 are pivotally connected to the adjacent end portions of the walls 13 `and 14for swinging movement inwardly and outwardly relative to each other by hinges '3S mounted on the inner faces of thewalls 11-14, each of the hinges 3S being disposed in a respective corner of the core C, Fig. 2. The `hinges 3S are of the single-pin type, with the pin thereof disposed inwardly of the side walls 11-14 A pair of elongated braces 41 and 42 made of suitable material such as, for example, angle irons, are mounted `on each of the walls 11-12, with the braces 41 and 42 of each pair disposedin longitudinal alignment with each other. The pairs vof braces 41 and 42 extend ,across substantially the entire length of the respective walls Y1-1-'14, terminating at their outer ends in spaced relation to the adjacent hinges 3S. The 'braces 41 are mounted onthe end portions 11a, 12a, vv13a and 14a and terminate Iat their inner end 4portions in spaced relation to the hinges 24. The braces 42 are mounted on the end portions 11b, 12b, 13b Vand 14!) and are notched at their 'inner end `portions to voverlie `the adjacent respective hinges 24, Fig. 2.

Thebase B, Figs. l and 2, preferably embodies a substantially rectangular shaped outer frame 43 'having two transversely extending cross braces 4S and 46 between which a centrally disposed, longitudinally extending brace '47"is disposed. An upwardly projecting supporting stand '51 is mounted on the cross braces 45 and 46, Figs. l and 2, the supporting stand '1 having two legs 53 and 54'projecting upwardly and inwardly from the cross brace 45, and two legs 5S land 56 Yprojecting upwardly and inwardly yfrom the cross brace 46. A top plate 5S Ais mounted on the supported by the upper end portions of the legs 53--56, and a substantially vertically disposed `shaft y61 extends through and is journalled in the plate 58. The shaft 61 projects downwardly from the plate ,58.and extends through and is also journalled in the brace f47. The .lower end portion of the shaft 61 is formed in a square shape, Fig. l, so that a suitable tool such as, -for example, `a crank 62 may be applied thereto for rotating the shaft61 for a purpose which will be discussed in ,greater detail presently.

i Two spiders63 and 64, each -having four substantially equally spaced, outwardly projecting legs, 63a-63d and 64a--64d, respectively, Figs. l and 2, are mounted on and secured to the shaft 61 for rotation therewith. The spider 63 is disposed on the upper end portion of the shaft 61, above the plate 58, and the spider 64 is disposed at the lower end portion of the shaft 61, above the brace 47. The shaft 61 is preferably disposed in position wherein it is positioned directly between the split lines 18 and 19 and the split lines 16 and '17.

Four straight, elongated links 66, 67, 68, and 69 are pivotally secured at their inner end portions by pins 71 to respective legs 63a-63d `of the spider 63, and are secured at their outer end portions by pins 73 to the braces 42 on the walls lll-14, respectively. The links 66-69 are preferably of such length and are so disposed in the core C that when the walls 11--14 are disposed in normal straight position, the links 66 and 67 are disposed in alignment with each other and with the split lines 16 and i7, and the links 68 and 69 are disposed in alignment with each other and the split lines 18 and 19.

Pairs of braces 41a and 42a are mounted on the lower end portions of each of the walls 11-14 in substantially parallel relation lto 'the braces 41 and 42, respectively. The `braces 41a and 42a are identical to the 'braces 41 and 42, respectively, and are disposed in the same relative position to the lower end portions of the hinges 24 as are the braces 41 and 42 relative to the upper end portions thereof.

Pour straight elongated ' links 66a, 67a, 68a and 69a are -connected at `their inner end portions to the spider 64 by pins 71 and to the inner end portions of the braces 42a on the walls 77-14, respectively, in parallel relation to the links 66-68, respectively, Figs. l and 2.

Elongated molding strips 76 are mounted on the lower end portions of the outer vfaces of the walls 11-14 in substantially Ahorizontally extending position.

In a typical operation ,of a form embodying our novel core C, the core C may be mounted on a suitable base such as the base B in normal operative position such as shown in Figs. l and 2, and a suitable outer shell or housing, such as the housing H may then be mounted in operative position outwardly of the core C and in position to dene, with the core C, an area into which material for forming a receptacle such as the .box V of a burial vault, may be poured. When so positioned, the molding strips 76 on the core C are disposed in abutting engagement with molding strips '7S secured to the inner face of the housingl-I in parallel relation to the adjacent molding strips 76. The molding strips 76 and 78 define the bottom surface of the mold afforded by the form F.

The molding strips 76 on each of the walls 11--14 are split throughout their width along lines 81 which project outwardly for the split Vlilies 1,6-,19 of the walls 11--14, respectively, in alignment with the beveled inner vedges of the end portions 11a, 12a, 13a and 14a, respectively, of Vthe Walls 11-14, Fig. 4. The split lines 81 are so formed that when the walls 1114 are disposed in normal vaultforming position, the end portions of each molding strip 76 are disposed in closely abutting engagement with each other to thereby afford a substantially smooth upper surface `at the joint therebetween.

It will be seen that with this construction, with the spiders .6 3 :and `64 and the links 66-69 and 66a-69a disposed in normal position, as shown in Figs. 1 and 2, the side walls 11--14 of the ,core C are disposed in normal operative position wherein the end portions of each wall are disposed in alignment with each other. By mounting the crank 62 ou the lower end portion of the shaft 61, and rotating the Ashaft 61 in a clockwise direction as viewed in Fig. 2 through approximately one-eighth of Va turn 'from the position shown in lFig. 2 tothe position shown in ,'Fig. 3, the links 66-69 and 66a-69a are pulled `in inwardly by the spiders 63 and 64. This movement of the links 66.69 and 66a--69a 'is effective to pivot the Walls 11-14 of the core C inwardly around the hinges 24 and 28 to thereby shrink the core C laterally and longitudinally inwardly away from the box V.

It will be seen that during the initial movement of the links 66-69 and 66a-69a, the double hinges 24 permit the inner ends of the end portions 11b, 12b, 13b and 14b of the walls 11-14 to move inwardly substantially directly away from the inner ends of the end portions 11a, 12a, 13a and 14a, respectively, to thereby afford an initial clearance between the inner ends of the end portions 11a-14a and the inner ends of the end portions 11b-14h. The double hinges 24 likewise permit the inner ends of the opposite end portions of the respective molding strips 76 to initially move relative to each other in this same manner. After this initial movement of the walls 11-14 and the molding strips 76, the hinges 24 continue to be pivoted about both pins 26 and 27 thereof so that the end portions 11b14b of the walls 11-14 and the end portion of the molding strips 76 attached thereto may be swung inwardly around the hinges 28 from the position shown in Figs. 2 and 4 into the position shown in Figs. 3 and 5.

With the core C in the collapsed position shown in Figs. 3 and 5, the outer shell H and the box V may be raised upwardly from the core C. Such raising of the outer shell H and the box V may be accomplished by suitable means such as, for example, a hoist, not shown, suitably engaged with the shell H such as, for example, by being connected to trunnions 83 and 84 projecting outwardly from the 0pposite end walls of the housing H. During this lifting of the box V from the core C the top plate 22 may be pulled from engagement with the inner face of the box V by suitable means such as chains 86, Figs. l and 2, connected to the top plate 22 and the base B, Figs. 1 and 2 and thereby permit the top plate 22 to fall downwardly on to the anges 21.

After the outer shell H and the box V have thus been raised completely oi from the core C, the shaft 61 may be turned by the crank 62 in a clockwise direction from the position shown in Fig. 3 to the position shown in Fig. 2 to thereby move the walls 11-14 back out into normal vault-forming position. To limit the outward movement of the walls 11-14, rods 91, 92, 93, and 94 are attached to the brace members 41 on the walls 11-14, respectively, Fig. 2. The outer end portions of the rods 91 and 92 are pivotally connected to the brace members 41 on the walls 11-12, respectively, and the inner end portions thereof extend through abutment members 96 and 97 mounted on and projecting inwardly from the brace members 42 on the walls 14 and 13, respectively. The rods 91 and 92 extend through openings formed in the abutment members 96 and 97 with a loose fit so that they may move longitudinally therethrough during the aforementioned movement of the walls 11-14 relative to each other. Stop members, in the form of nuts 91a and 92a are mounted on the inner end portions of the rods 91 and 92 and may be adjusted into position wherein, when the walls 11 and 12 have moved from collapsed position back out into normal vault-forming position, the stop members 91a and 92a engage the abutment members 96 and 97 to thereby prevent further outward movement of the walls 11 and 12.

The outer end portions of the rods 93 and 94 are similarly pivotally attached to the brace members 41 of the walls 13 and 14. The inner end portions of the rods 93 and 94 project through abutment members 98 and 99 which are mounted on and project upwardly from the legs and 56, respectively, Figs. 1 and 2, of the stand 51. Stop members 93a and 94a, in the form of nuts, are

mounted on the inner end portions of the rods 93 and 94 and are engageable with the abutment members 98 and 99 when the walls 13 and 14 have moved outwardly into normal vault-forming position.

From the foregoing it will be seen that we have afforded a novel core for burial vault forms, and the like, wherein the parts thereof are constituted and arranged, and are operable in a novel and expeditious manner.

Also it will b e seen that we have afforded a novel hinged core wherein the molding surfaces are substantially smooth when the walls thereof are disposed in normal position.

Thus, while we have illustrated and described the preferred embodiment of our invention, it is to be understood that this is capable of variation and modification, and we therefore do not wish to be limited to the precise details set forth, but desire to avail ourselves of such changes and alterations as fall within the purview of the following claims.

We claim:

l. A core for a mol-ding form comprising a plurality of elongated substantially upright walls, each of said Walls being pivotally connected at the outer ends thereof to an adjacent wall thereby connecting the walls together in end-to-end relationship to form a closed structure, each of said walls being split across its width intermediate the outer ends of the wall to dene two adjacent inner ends and dividing each wall into two separable portions, one inner end of each of said walls having a substantially square configuration and the adjacent inner end of the associated wall being beveled inwardly to define a split line being substantially triangular in cross section, the outer faces of the inner ends of the two portions of each wall being normally disposed in abutting engagement with each other, hinges pivotally connecting one separable portion of each of said walls to the other separable portion of the same wall, each of said hinges comprising two hinge plates normally disposed in parallel relation to each other, each of said plates being connected to a respective one of said portions of said wall, a central hinge plate between said two plates and normally disposed in parallel relation to said two plates, and two parallel hinge pins pivotally connecting said two plates to opposite edge portions of said central plate, said pins being disposed on opposite sides of the plane of said central plate, and means connected to said walls and projecting therefrom for simultaneously swinging said walls on said first mentioned hinges and said other hinges inwardly and outwardly relative to each other.

2. Apparatus as delined in claim l including elongated molding strips mounted on the outer face of the bottom portions of said walls in end-to-end relation to each other, each of said molding strips on each of said walls being split intermediate its length along a line substantially in alignment with the beveled inner end of the wall on which said strip is mounted and with the end portions of each of said strips disposed in abutting engagement with each other to afford a substantially smooth upwardly facing surface.

References Cited in the le of this patent UNITED STATES PATENTS 1,164,106 Lerch Dec. 14, 1915 2,557,631 Callan June 19, 1951 2,683,913 Honnigford July 20, 1954- 2,707,814 Francis et a1 May 10, 1955 FOREIGN PATENTS 585,719 Great Britain Feb. 21, 1947

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