Patent GB-673707-A (GB)
Title: An improved machine for the automatic moulding and automatic delivery of ice cream
IPC: A23G9/28
Filed: 1949-10-25
Abstract: 673,707. Ice-cream sandwiches. PRESTOMATIC HOLDING CO., Ltd., and HIRSCHSON, R. Oct. 25, 1949, No. 27362/49. Class 28 (i). [Also in Group V] A machine for the automatic moulding and delivery of ice cream wafer sandwiches in which the separation of ice cream from the surface of a bulk supply contained in a rotatable pot is effected by a scraper inclined relatively to the said surface, and from which the ice cream is transferred to a mould which is intermittently raised and lowered to and from a delivery position, is characterized in that the mould is lifted by a feeder device to a delivery opening lying at a higher level, and after delivery of the moulded piece, the feeder falls freely to its lower position. A pot 1 of ice cream, Fig. 1, is rotated by a shaft 2, and a scraper 5 on a stationary plate 4 feeds ice cream to a mould 8 which is then raised on a shaft 10 by a rod 9 to a wafer feeding position. The rod 9, Fig. 2, is frictionally connected to a slotted, pivoted link 11 which is reciprocated by a crank 20 secured to a shaft. A disc 21 secured to the said shaft is rotated intermittently by spring- loaded pawls 24 pivoted on a lever 22 which is freely carried on the shaft and driven from a sprocket 23. The rod 9 is held in the upper position for a short period by a pin 30 engaging the disc 21, during which time the pawls are held out of engagement with the disc by fixed surfaces 26. During this period the ice cream is ejected from the mould 8 by a plate 35, Fig. 5, operated by a cam mechanism, and fed between wafer containing magazines 33, 34. Prior to the ejection of the ice cream from the mould, wafers are fed to the top and bottom of the space 37 by pusher plates 42, 43, Fig. 4, secured to a common plate 44 reciprocated by cams 55, 58 and a pivoted link mechanism 52. A plate 65a is driven in transverse guides in the plate 44 by a crank 49 and an arm 63, and separates the ice cream from the plate 35 and ejects the completed ice cream wafer. A pawl 24 on the rotated lever 22 removes the pin 30 from the disc 21, and the rod and mould fall by gravity to their lower position. As the level of ice cream in the pot falls, the plate 4 is lowered by a cam 77, Fig. 2, which oscillates a pivoted lever 76 connected by a spring 75 to a pawl lever 73 carrying a pawl 72. The pawl rotates a wheel engaging with teeth on a spindle 68 connected to the plate 4. In a further embodiment the icecream is fed by a scraper 5, Fig. 9, through an aperture to a rectangular mould 83 on a plate 4. The mould is partly formed by a piston 84 having a hook-shaped extension 85 which encloses two sides of the mould. The piston is cam operated to feed the moulded portion on to a plate 86 which is lifted to the wafer feeding position. In this position a pusher plate 108, Fig. 7, on a spring loaded lever 107, pivoted at 106, is forced by a stop 110, which engages a part 109, into a forward position, and the ice cream is thereby fed to a plate 114 which is already supplied with a wafer from a magazine 117, Fig. 6. When falling to its lower position, the carrier strikes a stop 116 and the pusher plate 108 is returned to its rearward position. A cam operated feeder plate 135, Fig. 6, transfers the ice cream to a position where the upper wafer is added from a magazine 118. The wafer feeder plates 119, 120 are connected to a common member 123 driven by a cam mechanism. Means are described for removing the storage pot from the apparatus and for removing by scrapers, excess ice cream from the plate 4.