Patent GB-1503329-A (GB)
Title: Apparatus for preparing an elongated edible product
IPC: A23L15/00
Filed: 1975-11-21
Abstract: 1503329 Apparatus for moulding complex edible products DANSK ANDELS AEGEXPORT 21 Nov 1975 [29 Nov 1974] 48040/75 Heading B5A Articles comprising a cylindrical shell (circular or oval cross-section) of a first material (e.g. egg white) and a cylindrical core of a second material (e.g. egg yolk, minced meat or vegetables) are produced in a plurality of moulds 2 (Fig. 1, plan view) moved successively through a station I where mould bottoms are inserted and lubrication effected, a station II at which bores and surrounding egg white are inserted, station III where the cores are withdrawn and replaced by egg yolk, and an ejecting station V. Alternatively, white and yolk can be applied simultaneously to surround and embed a tubular core, which is then removed. As described, thirty two sets of six moulds 2 are mounted on a turret 1 rotatable intermittently about a support 4 (Fig. 2). A bearing sleeve 29 carries three sets of concentric rings 26/27, 32(33, 34/35. The rings (26-33) support mould sets 2 having removable mould bottoms 14, (see also Fig. 4), each mould having a double 6/9 between which heating or cooling fluid can circulate from ducts 10, 11. Each ring 34/35 (Fig. 2) supports core frames 37 guiding tubular cores 13 held permanently above (or within) their corresponding moulds. Fig. 4 shows a core 13 in place within a mould 6/9, lateral support being provided by bearings 38/39 on the frame 37, and the core being sealed against the mould bottom 14 by a spring biased roller 55. The roller 55 engages a core groove (see Fig. 3, not reproduced) when the core is in its raised position. The cores 13 are inserted and removed from the moulds by grippers 42 (Fig. 2) positioned at stations II and III (Fig. 1) and movable vertically by a boom 41. The insertion grippers comprise a sleeve 48 (Fig. 6) notched at 49, 50 and surrounding a spring-urged ball 52, which bears against a diametrically arranged pin 51 attached to the core 13. The removal grippers comprise a sleeve 61 (Fig. 10) having a pair of hooks 62 and surrounding a rotatable, forked member 65. The core pin 51 is received between the forks 64 of member 65, which is then rotated to lock the pin 51 above the hooks 62. Operation.-When a set of moulds is at station I (Fig. 1) a bottom plug 14 (Fig. 2) is inserted into each mould and lubrication applied. The turret 1 rotates intermittently by an amount corresponding to the angle between each mould set) until the said set reaches station II, where the insertion grippers 42 insert a set of cores 13 into the moulds. Egg white is pumped around the core by pumps 15 feeding white from a tank 18 through a preheater 19. As the mould set is moved step-bystep between stations II and III water at 90‹ C. is passed through the mould skin to partially coagulate the white. At station III the removal grippers 42 withdraw the-cores 13, and preheated yolk is fed from tanks 23 by pumps 20 into the exposed cavities. Further heating occurs until a station IV, where cold water at 35‹C. is circulated through the mould skin. At the final station V, the mould bottoms 14 are raised by ejectors 47 (Fig. 2). to upwardly eject the egg article, which passes to a packaging machine 25. Alternatively the bottoms 14 are pivoted to allow downward ejection of the articles. Specification 1,349,959 is referred to. Lubrication is described in Specification 1,502,463.