US2274236A - Mold - Google Patents

Description

Feb. 24, 1942. E. E. HOPKINS MOLD Filed May 26, 1939 5 Sheets-Sheet l y I n senior J i52 fie 66/9/1705 ilorncys Feb. 24, 1942. E. v E. HOPKINS- s Sheets-Sheet 2 V MOLD Filed May 26, 1959 Feb. 24, 1942. E. E. HOPKINS MOLD Filed May 26, 1939 5 Sheets-Sheet 3 In ventor A iiorneys Feb. 24, 1942. E. HOPKINS MOLD Filed May 26, 1939 5 Sheets-Sheet 4 A tfofneys Feb. 24, 1942. HOPKINS 2,274,236

MOLD

Filed May 26, 1939 5 Sheets-Sheet 5 545. a 15 w 22; 77 L 3 76 7a 2 7.? 68 M J j M I 2 Q1 v 2 6 Inventor A itorneys Patented Feb. 24, 1942 UNITED V'STATE S 'PV'TT OFFICE 9 ew I Eugene E. Hopkins, Chicago, Ill. Application Ma 26,1939, Serial No. 275,972 '4 Claimss- (c1. 25-430 My invention relates to improvements in molds;

for constructing burial vaults of plastic material.

By way of explanation, in my copending application Serial No. 224,397, filed August :11, 1938,. I have disclosed a burial vaultcharacterized by a casing having a concaved bottom, and a domeshaped lid for nesting'in said bottom in stacking of the vaults, the Vault casing and lid being adapted for interlocking relation by means of an upstanding bead or tongue extending around the upper edge of the casing centrally thereof and a groove in the lower edges of the lid into which described vault casing and lid and optionally.

forming a fiat bottom casing,;if desired, the units being particularly adapted for disassembly of the 1 major parts thereofbefore the material of one casing and lid is fully set, so that said parts may be set up and used in forming another casing and lid thereby providing for quick manufacture of the vaults one after another.

To the accomplishment of the above, and sub ordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in the accompanying drawings, set forth in detail in the succeeding description, and defined in the claims appended hereto.

In saiddrawings:

Figure 1 is a view in side elevation of the casing mold units. a

Figure 2 is a view in transverse section taken on the line 2-2 of Figure 1 looking in the direction indicated bythe arrows, anddr awn to an enlarged scale, a

I .Figure 3 is a view in end elevation.

Figure 4 is a view in perspective of one of the outer wall sections of the casing mold unit. Figure 5 isa similarview of one of the core sections ofthecasing mold unit. 7

Figure 6 is a detail sectional View taken on the linev 6-6 of Figure 3 looking in the direction indicatedby thearrows.

Figure "7 isa view partly in side elevation and partly in section of one of the fastening devices for securing the casing wall sections and the core sections together and to the upper edge forming section. i

Figure 8 is a view in perspective view of a filling dicated by the arrows.

2 tive of the intermediate keeper frame, and

or bridging ;member forming part of the core unit. A r Figure 9 is a view in transverse section of the lid mold unit.

Figure 10 is a View in horizontal section taken on the line l0.-Hl of Figure 9 looking downwardly as indicated by the arrows.

Figure 11 is a fragmentary View in longitudinal section of the lid mold unit taken'on the line H-H of Figure 10, looking in the direction in- Figure 12 is a fragmentary view or section taken on the line l2-|2 of Figure 2 looking in the direction of the arrows.

Figure 13 is a fragmentary View in perspec- Figure 14 is a view in perspective of the keeper hook. i 1

Referring to the drawings by numerals, my in- A vention comprises a casing mold unit Ashown in Figures 1 to '7, and a lid mold unit B shown in I Figures 9 and 10, a

Thecasing mold unit A comprises four outer wall forming sections I of sheet metal and of rightangled form in longitudinal section, as best shown in Figure 4, fitting together in end to end by the following means.

butting relation 'to form a rectangular elongated wall, or shell, 2, each section forminghalf of one side and one end of said wallor shell. The sections l are detachably secured together, in part, The upper and lower edges of said sections are surrounded by upper and lower angle iron section aligning frames 3' and 4 fitting fiat against the outer faces of said sections. A similar T-iron center frame 5 extends around said sections in the horizontal center of the same. The frames 3, 4 each comprise a pair of sidebars 6 and a pair of end bars I, thelatter fitting between the former. The center, frame 5 likewise comprises a pair of side bars 8 and a pair of end bars 9.- The side and end bars 6 and I of the upper frame 3 are detachably secured together by means of short plates I0 welded, or otherwise secured, to the under side of the end bars 1 to extend from the ends thereof under the ends of the side bars 6, said plates and side bars being suitably apertured to receive wedge-shaped pins ll, all as best shown in Fig-- ure6, By means of the described plates l0 and pin ll, said bars 6 and 1 may be secured together in flush relation for a purpose presently seen. The side andend bars 8 and f the center frame 5 are similarly secured together by upper and lower end plates I2 and I3 on the ends of the end bars 9 straddling the flange of the side bars 8 and secured thereto by wedge pins I4. The side and end bars 6 and I of the lower frame 4 are detached from each other but otherwise secured in place as presently described.

The frames 3, 4, and 5 are spaced apart as follows: At the corners of the sections I upright angle bars I4 are suitably secured to the outer faces thereof for location intermediate the center frame 5 and the upper and lower frames 3 and 4. At the butt joints between the sections I, represented by dotted lines at I5, each one of said sections I is provided with a pair of exterior upper and lower vertical T-iron braces I6 and I1 spaced apart to fit between the center frame 5 and the upper and lower frames 3 and 4. The braces I6 and I1 overlap the ends of the adjacent sections I fiat to brace the joints I5. The upper end of the upper brace I6 is notched, as at I8, to receive one flange of the bar 6, or I, as the casemay be, and brace said bar against outward flexing. Intermediate the joints I5 and the corners of said sections I a pair of upper and lower T iron braces I9, 26, similar to braces I6 and. H are provided on each section. The braces I6, I'I, I9 and 20 are preferably secured to the sections I by welding, not shown. To additionally align the sections I, at the joints I5, the section overlapped by the braces I6 and I 'I is provided with a hook-like keeper 2| overlying the overlapping upper brace I6 adjacent the upper end of the latter.

The core unit C comprises four corner sections 22, one of which is shown in detail in Figure 5. Each section 22 embodies an elongated sheet metal wall forming member including a top wall part 23, a side wall part 24, and an end wall part 25 secured in any suitable manner on the outer side of an angle iron frame 26 extending along the edges of said parts. The end of the member opposite the end wall part 24 is open. Intermediate the ends of said member and at the open end thereof the frame 25 is reinforced by a pair of vertically disposed V type angle iron braces 21.

The described core sections 22 are designed to be assembled within the wall, or shell 2, in spaced apart relation with side and end wall-parts outermost and to be spaced apart by a cruciform sheet metal bridging member 28 having a rightangled top wall part 29 and side and end wall parts 30, 31, the top wall part 29 fitting in between the wall parts 23 of sections 22 and the side and end wall parts 30, 3| fitting in between the side and end wall parts 24, 25, respectively, to form therewith an open bottom, flush top and side core unit of rectangular form spaced from the wall, or shell 2, a distance corresponding to the thickness of the wall desired in the vault casing to be molded. As best shown in Figure 2, the top of the core unit C is spaced below the top edges of the wall, or shell 2, a suitable distance to provide for the requisite thickness of the bottom of the vault casing. At suitable points, the top wall parts 23 of sections 22 are provided with depressions 32 for forming on the inner face of the bottom of the vault casing cofiin rests as will be understood. Also at suitable points, said top wall parts 23 of sections 22 are slotted, as at 33, for the insertion of handle members 34 in the interior of the core unit 0, said members having anchored ends 35 extending out of the core section for embedding in the bottom of the vault casing to be molded. To properly support the bridging member 28, the frames 21 are extended beyond the top wall parts 23, as best shown in 7 Figure 2, to seat thereon the top wall parts 29 of said member.

The corner sections 22 upon opposite sides of the transverse center of the core unit C are detachably connected together in pairs by a pair of tie rods 36 extending transversely between the upper inner edges of the frames 26 of said pairs, with their opposite ends extending through said frames, respectively, and each end having threaded thereon a pair of clamping nuts 31 upon opposite sides of the frame. The rods 36 are jointed, as at 38, and one end is extended through the related frame 26 by way of a vertical slot 39 in the frame so that by loosening the appropriate nuts 31 said end of the rods may be swung downwardly out of said slots, as shown by dotted lines in Figure 2, and the pair of sections 22 thus disconnected. The rods 36, under adjustment of the nuts 31, may be used as spreaders to properly position the sections 22 transversely of the core unit C and to clamp the sections against the bridging member 29 as will be clear. In addition to the foregoing, the casing mold unit A comprises a rectangular frame 46 interposed between the wall, or shell 2, and the described core unit C at the bottom edges of the latter and of said wall, said frame functioning as a spacer for said wall and core unit and as an edge forming member for the top edge of the vault to be molded. As best shown in Figure 2 said frame 40 is of channel iron form and has a central top bead '4l extending around the same and a top groove 42 within theconfines of said bead all for forming the edge bead, not shown, on the vault casing described in the foregoing.

The wall, or shell 2, and the core sections 22 are clamped to the outer and inner faces of the frame 40 by fastening devices now to be described. At suitable intervals along the bottom of the frames 26 laterally extending tubular bolt casings 43 are secured at one end, as by welding not shown, to said frames on the inner faces of the latter, said casings having capped inner ends. Headed bolts 44 are slidably mounted in said casings 43 to be projected therefrom outwardly through said frames 26, said wall parts 24, frame 40, sections I of the wall 2, and bars 6 of lower frame 4, these elements being suitably apertured as will be understood for extensions of the bolts therethrough. Coil springs 46 in said casings 43 backing the bolts 44 urge the latter outwardly. The leading ends of said bolts 44 are slotted transversely, as at 41, to receive wedge-shaped pins 48 acting against the bars 6 of frame 4 to draw said bolts tight. A pin 49 on each bolt 44 extends through a longitudinal slot 56 in the casing 44 and coacts under a slight turn of the bolt with a rightangled extension 5| of said slot to releasably lock the bolt in retracted position. The outer end of each bolt 44 has a kerf 52 therein for turning the bolts with a screw driver. As will be understood the described fastening devices are provided at the ends of the casing mold unit A as well as at the sides thereof. A single tie rod 53 is provided for extension transversely, in the center of the unit A, through the bars 6 of frame 4, the side wall parts30, frame 46 and sections I, said rod extending across said unit and having wedge pins 54 inserted in the ends thereof alongside the bars 6 in the same manner and for thesame purpose as described with reference to bolts 44 and pins 48. A tubular spacing member 55 is sleeved onto the rod 53 intermediate the frames 26.

A rectangular closure 56 is provided for the top of the casing mold unit A of inverted pan-' like form, said closure havinga lateral edge having a drop bottom 59 of concaved form, transversely and longitudinally, said bottom having a large rectangular opening 60 therein closed by a plate 61 detachably bolted thereto, as at 62. At suitable points around the edges of the closure 56 small pouring openings .63'are provided therein. As best shown in Figure 2, the described casing mold unit A is designed to be set'on a T iron frame-like support 64 of the requisite size to support the lower frame 4, wall 2, and'frame 49 and fitting around the'described core sections 22 with a slight clearance, said support being designed to be elevated in any suitable manner for access by an operative to the under side of said unit and to the interior of the core unit C.

Referring now to the use of the described casing mold unit A, with the closure 56 removed, and the parts assembled as already described, the plastic material is poured in the usual manner into the space between the wall 2, or sections I and the core unit and until the material is level with the top edges of said wall. The closure is now bolted on as described so that the drop bottom 59 is pressed into the material and pouring completed through the apertures 63. As will be understood the drop bottom 59 of the closure 56 forms a concaved bottom in the vault thus molded. After the material has set for a suitable time, the pins 48 are knocked out of the bolts 44 and the latter are retracted by pushing inwardly with a screw driver and locked in retreated position by a slight turn as previously described. In their retracted positions, the bolts 44 clear the frame 46. The pins 54 are next knocked out of the rod 53 and the latter pulled free of the parts connected thereby. The tie rods 36 are next detached in the manner already described. The core sections 22 and member 29 may now be dropped through the frames 49 and the support 64' for'assembly with another frame 40 mounted on another support 64. The closure 56 may next be detached from the upper frame 3 by unbolting, and the sections I and frames 3, 4 and 5 may then be disassembled, in amanner which will now be obvious, for reassembly with the sections 22 and member 28 and said other frame 4|] for use in molding another vault. The use of the closure 56 may be dispensed with if desired and the material leveled off flush with the upper edges of the sections l, or walls 2, to form a flat bottom vault.

The lid molding unit B comprises a rectangular channel iron frame 65, similar to frame 40, and

adapted to be disposed on a T-iron frame-like support 66, similar to frame 64, said frame 65 having a top rib, or bead, 61 upstanding therefrom of bevel form and extending around the center of the frame. also the support 66, with a slight clearance is a bottom core structure including an angle iron rectangular frame 68 reinforced by equidistantly spaced transversely extending angle bars 69 and,

at the ends thereof, by oblique similar bars 16 extending from the inner corners of the frame to adjacent bars 69. The bars 69 and are welded in position. Surmounting the frame 68 of the bottom structure is a rectangular sheet metal bottom forming plate II transversely and longitudinally arched upwardly and having its edges secured, as by welding, not shown, to the outer edges of said frame 68. Upright struts 12 extend between the bottom of the plate H and said bars 69 and HI for supporting the load on said plate, said struts being suitably secured to said bars and plate.

Surmounting the frame 65 is a cover-like sheet metal casing structure 13 including vertical side and end walls 1.4 and 15 fitting at their lower edges against the outer sides and ends of said frame, an inwardly extending rightangled rim part 16, and an upwardly offset dome-like center part 11 having an opening 18 therein closed by a plate 19 detachably bolted in position, as at 80.

Thedescribed bottom and casing structures are detachably secured to the frame 65 by means of a pair of tie rods 86', similar to rod 53, extending transversely through said frames 68, 65 and the side walls 14 adjacent opposite ends of said frames with wedge pins 8| in the ends thereof similar to pins 54. The casing structure 13 is separately secured to said frame 65 by bolts 82, slidably mounted in the sides and ends of said frame 68 transversely thereof for projection of the leading ends thereof outwardly of said frame and through the side and end walls of said structure 13 which, as will be understood, are suitably apertured for that purpose. The outer ends of the bolts 82 are equipped with wedge pins 83 in able apertures in the ledge part 11 of casing Fitting in the frame 65,

structure 13 with lower ends socketed, as at 85, in the top edge of the rim 61.

As will now be understood, the described lid mold unit B is poured through the opening 18, the plate 19 being first detached. The plate H forms an arched, or concaved, bottom in the lid whereas the rib 6'! forms a correspondingly shaped groove in the bottom of the lid adjacent the edges thereof, and the center part 11 and plate 19 form an arched top on the lid. The core rods 84 form ports in the lid extending downwardly to the groove for introducing a sealing compound into said groove.

As will also be understood, the frame 66 and parts carried thereby may be lowered out of the frame 65 through the support 66 by merely detaching the tie rods 86' and the casing structure I3 may then be detached by removing the pins 83 and retracting the bolts 82. As in the case of the casing mold unit A, all parts of unit 13, except the frame 65, may be detached and assembled with another frame 65 for molding another lid while the lid previously molded is drying out on its frame 65.

The foregoing will, it is believed, suffice to 1mpart a clear understanding of my invention without further explanation.

Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept and right is herein reserved to such modifications as fall within the scope of the subjoined claims.

Having described the invention, what I claim is: I

1. Mold apparatus comprising a frame-like support adapted to be disposed in horizontal elevated position, and having an uninterrupted passage therethrough a mold frame fitting upon said support flush with the inner edges of the latter, a core section movable vertically through said opening in the support and fitting in said frame when in raised position and means for detachably securing said core section to said frame comprising fastener members movable inwardly of said frame and core section from the exterior of the apparatus to releasing position within said core section, and adjustable in the releasingposition thereof to lock the same in said position.

2. Apparatus of the class described comprising a rectangular base frame of bar-like metal having a central top rib extending around the same and a groove therein within the confines of said rib, a rectangular hollow core unit fitting in said frame and forming an inner wall and a top wall, said unit embodying corner sections spaced apart, and a cruciform bridging member for filling the space between said sections, means to secure said sections to said frame for detachment one at a time, and separate means for detachably securing said bridging member to said frame.

3. In a mold device, a hollow core unit comprising corner sections spaced apart, a cruciform bridging member for filling the space between said sections, said sections and member forming an open bottomed structure closed at its sides, and means operative from within the core to detachably secure said corner sections together in pairs and to spread the connected sections apart.

4. In a mold device, an elevated and horizontally arranged supporting member forming an unrestricted opening, a core member adapted to be moved vertically through said opening, a bottom forming member for the mold device seated on the supporting member and surrounding the lower part of the core member when the core member is in place, and means for detachably connecting the core member with the bottom forming member, said means including fastening means movable to releasing position from the exterior of the mold device.

EUGENE E. HOPKINS.

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