GB742343A - Comminuting and centrifuging machine - Google Patents

Abstract

742,343. Juice extractors. KRON, M. Oct. 12, 1953, No. 28084/53. Class 28(2). [Also in Group I] Juice and separated pulp is obtained from fruit, vegetables &c., placed in a hopper 13 and pressed down by a plug 15 against one or more rotated comminuting blades 11 which grates the fruit against teeth 16 at the bottom of the plug 15. The material is then comminuted between the blade 11 and superposed annular grinding rings 24, 25 between which it squeezes out for further comminuting. The material then is thrown out to the bottom of a rotated juice screening cage 6, the cup-shape of which allows the material to spread up on the screen through which the juice passes to a chamber 5 and a further screen 4 to a juice collector 2 and an outlet 3, which has hook like notches for suspending a juice receptacle. The sieved pulp leaves the upper edge of the cup shaped cage 6 by centrifugal action and assisted by conveyer blades 21 on the bowl is thrown out through an outlet 17 to a pulp receiver 18. Air holes 20 prevent a vacuum forming inside the apparatus. The cover 14, integral with the hopper 13, is removable from the main housing 1 by disconnecting at the bayonet joint 22. Radially extending ribs (37, Fig. 2, not shown) on the part 26 of the hopper prevent air eddying. The device is rotated from a drive shaft 9 coupled to the under motor of a mixer, detachable connections 31, 32 and a rubber base 35 allowing replacement of the mixer bowl by the juice extractor by slight rotational movement to engage lugs 35. The plug 15 is prevented from rotating by its projecting tongue 38 engaging a slot 39 in 26. In a modification, Fig. 3 (not shown), the pulp is removed from halves of oranges &c., by pressing them down on a conical rotated reaming-like head by a correspondingly shaped presser plug. The hopper 13 may be widened at its lower end to include a comminuting blade co-operating with the rotated blade 11.