GB757374A - Improvements in the manufacture of wrapped packages of ice-cream or other plastic material - Google Patents

Abstract

757,374. Ice-cream. ROSE BROS. (GAINSBOROUGH), Ltd. April 22, 1955 [May 25, 1954], No. 15318/54. Class 28(1). [Also in Group XVII] In a machine in which portions of ice-cream or other plastic edible material are enclosed in succession in a folded web which is collapsed and secured between adjacent portions, a strip of the plastic material is continuously extruded towards the web and severed at intervals in timed relationship with the movement of the web so as to deposit thereon a succession of portions and a stick of wood or stiff cardboard is inserted laterally into the extruding strip before severing operation. Blocks 1 are severed in succession from a strip 2 of ice-cream extruding from a nozzle 3 and deposited on a web 12 of heat-sealable wrapping material which is then folded around the blocks in the form of a tube, the severing and wrapping mechanisms being constructed as described in Specification 743,978 [Group XVII]. A stick magazine 17 is slidably mounted on rollers 18 in a framework 19 and is movable towards and away from a suction device 21 by a spring-loaded two-armed lever 22, 23 actuated by a cam 24 on a main shaft 25. The device 21 is rotated intermittently to carry suction nozzles 29 in succession into register with the mouth of the magazine so that each receives a stick 31 and withdraws it against the action of retaining springs 38, a trapping member 32 being oscillated in synchronism with the movements of the magazine, through linkage operated by a cam 37 on the shaft 25, to prevent movement of the remaining sticks. Each stick is deposited by the nozzles in a channel 39 and its leading end is gripped by the first of two pairs of knurled rollers 41 and 42 mounted on a carriage 43 which is secured to a slide bar 44 reciprocable in a slideway 46 by a cam 48 on the shaft 25. The upper rollers are carried by spring- loaded pivoted arms 45 and coupled to the lower rollers by gears 49, the latter being driven by sprockets 51 coupled by a chain 52 to a sprocket 53 which is mounted in a bearing bracket 54 carried by the framework 19 and driven by gearing 56, 57 from the shaft 25. The rollers and carriage co-operate to feed the stick along a supporting channel 58 and drive it into the extruding strip 2 through an aperture in the nozzle 3.