Patent GB-1515350-A (GB)
Title: Apparatus and method for making concrete modules particularly for modular crypts
IPC: B28B7/16
Filed: 1975-10-15
Abstract: 1515350 Mould for concrete crypts E C DUWE and W E DUWE 15 Oct 1975 [15 Oct 1974] 42313/75 Heading B5A A modular crypt is moulded in apparatus comprising mould 10 (Fig. 8) defining at least two spaced cavities 50/52/54, there being a first closure 34 at one (the front) end closing off that end of the cavities, and a second pivoted closure 36 at the other (the rear) end spaced in use so as to define a cavity 55 extending across and communicating with the first mentioned cavities. A plurality of removable inserts (e.g. 90/94) are provided for allowing the configuration of the crypt to be altered. As shown, the mould 10 comprises a rolled steel base frame 11 supporting a single or welded sheet steel casting form 12 stiffened by brackets 18 (Fig. 2) underneath and defining the cavities 50/52/54. The rear ends of the upstanding portions of form 12 are closed by walls 71, while the front ends are open. The second, rear closure 36 is pivoted to the frame 11 and comprises a plate 58 supporting pins 60 and an upper flange 64 (shown in Fig. 2 only). The first, front closure 34 comprises an upper channel 42 (Fig. 3), with a flange 62 and depending channels 44/46/48) for closing off the cavities 50/52/54 and pivoted to frame 11. As the front closure 34 is pivoted to its vertical position, slots 56 engage over arms 57 (Fig. 5) projecting from the form 12. Cam shafts 67, passing through apertured plates 61 mounted on the closure 34 are rotated by handles 69 to turn eccentrics 67 in slots 59 in the arms 57, and thus force the closure against the form 12. Concrete is cast with vibration around reinforcement and is cured naturally or by heating coils or pipes beneath the form 12. The basic modular crypt C comprises two cavities (shown dotted in Fig. 9) open at the base and the front end, and closed by a wall 102 at the rear end and by a roof. Rear ventilation holes 100 are included, with corner grooves 96/98 provided for interlocking of adjacent modules. The roof includes grooves (shown in Fig. 7, not reproduced) for receiving the legs of a module stacked thereon, and blind apertures for engaging a hoist. The basic crypt can be modified during moulding to provide one open-sided cavity (Fig. 11) with portions 124/126 for interlocking with the corner grooves 96/98 of a basic crypt C (Fig. 9), or grooves 128/130 of a like crypt B (Fig. 11). Grooves 128/130 can be omitted to give a planar side wall (crypt A, Fig. 13, not reproduced), or the crypt cavities can be open at both ends (crypt C<SP>1</SP>, Fig. 15, not reproduced). A single cavity crypt can be made. The modular crypts are interlocked and stacked in any desired arrangement (as described in U.S.A. Specification 3,878,656) with abutting surfaces sealed with grout or butyl rubber, to form a mausoleum. Mould inserts.-The mould 10 (Figs. 2/8) is modified with removable inserts to define any of the crypts described. The roof grooves (not shown) are formed by slats placed in notches 70 (Fig. 2) after concrete casting, and by the wall flanges 64/62. The ventilation holes 100 (Fig. 9) are defined by the rear closure pins 60 (Fig. 8). The grooves 96/98 are formed by a hinged plate 90 and by a removable plate 94 attached to the rear closure 36. The open-side (Fig. 11) is provided by separate or integral inserts that close off the upper and rear of the mould cavity 50 (Fig. 8) (see Fig. 10, not reproduced), while a planar side-wall is defined by an L-shaped plate (132) (see Fig. 12, not reproduced) replacing the plane plate 90 and plate 94. Open ended crypt cavities are produced by frame-like inserts (140) (see Fig. 14, not reproduced) extending the rear ends of the upstanding portions of form 12 to seal against the rear closure 36. A single cavity crypt is formed by moulding in cavities 50/52 only and around the part of form 12 between these cavities.