Patent GB-402237-A (GB)
Title: A device for the manufacturing and decorating by extrusion of confectionery and pastry-cook's wares of all kinds
IPC: A21C3/00
Filed: 1932-10-31
Abstract: 402,237. Coating bakers' &c. goods. LERCHE, H., 27, Stolberggasse, Vienna. Oct. 31, 1932, No. 30530. Convention date, Aug. 2. [Class 28 (i).] In apparatus for manufacturing and decorating by extrusion confectionery and pastry-cooks' wares, of the type in which a dough carrier or travelling plate 4 while being charged with the dough, icing or other extruded matter is slid upon a second or base plate 8 in different paths determining the shape of the wares produced, the driving of the travelling plate is effected by means of a hand lever 15 oscillating in the same path which is independent of the different paths of the travelling plate while the driving of the press piston is effected by a reversible motor. The columns of dough &c. emerging from the nozzles 1 of the press case of the machine flow on to a baking tin 3 removably secured on the travelling plate 4 which is slidably mounted by ball bearings 7 on the base plate 8, a system of links 9, 10, 11 arranged on the upper side of the base plate causing all points on the travelling plate to be guided in congruent paths. The driving mechanism for the travelling plate is mounted on a carrying plate 14 mounted on the underside of the base plate and includes the hand lever 15, a toothed disc 16 and a pinion 17 on a removable driving disc 18. The driving disc 18 carries a lever 22 pivoted thereto at one end 21, the other end of the lever carrying a pin 24 engaging through a large aperture 30 in the base plate 8 a corresponding hole in the travelling plate 4 as shown in Fig. 5. The movement of the travelling plate may be controlled by a guiding plate 31 having therein an aperture 34, Fig. 10, the edge of which Alternatively the rack 41 may be disposed as shown in chain dotted lines in Fig. 6 ; in this case the guide-plate may be dispensed with and a slot S, Fig. 2, in the base plate 8 made to serve corresponds in shape to the desired figure to be produced. The plate 31 is fixed on the base plate 8 by means of pins 32 and a roller on the pin 24 is constantly pressed by an adjustable leaf spring 28 against the edge of the aperture 34, the travelling plate being thereby compelled to carry out a movement corresponding to the shape of this edge. The hand lever 15 may slide over an arc-shaped graduated rail 35 on which two stops 36 may be adjustably mounted for limiting the stroke of the lever, strokes of limited length being used for example in the manufacture of open figures such as crescents or semicircles. The rail 35 may also have notches 40 into which a spring element 39 adjustably mounted on the lever 15 is adapted to snap for the purpose of temporarily interrupting the movement of the travelling plate at certain predetermined points in its path for example for the production of ribbed confectionery. If it is desired to produce more longitudinal figures the disc 18 may be replaced by a rack 41, Fig. 6, meshing with the disc 16 and slidably mounted on the plate 14 by means of a slot 42 in the rack and pins 20a, 43 on the plate 14. The rack 41 has a lever 45 pivoted thereto corresponding to the lever 22 previously referred to, a roller 47 on the pin on the lever sliding in the shaped slot 48 Fig. 12 of a guideplate 49 mounted on the base plate 8 as before. for controlling the travelling plate. In the modification shown in Fig. 15 the rack 41 is slidably mounted on a disc D rotatably mounted on the shaft 19 of the disc 16 ; the disc D has two holes d, d<1> displaced at an angle of 90‹ to each other so that the disc D may be fixed in the position shown in Fig. 15 by a pin z engaging the hole d<1> or in a position at right angles thereto. In all constructions the base plate, the travelling plate and the driving-mechanism for the travelling plate constitute a unit which can be raised or lowered during working for example by an eccentric device. The driving- mechanism for the press piston includes a reversible motor M, a slip clutch C, a worm 52 and a worm-wheel 53, and a carrier 55 for a double pawl 56 fast on a shaft 54. When the motor rotates in the normal direction the upper engaging arm 56a of the pawl actuates the ratchet-wheel 57 to rotate a pinion 59 and a spur-wheel 60 thereby rotating the screwthreaded spindle 51 of the press piston to lower the piston. When the motor is reversed the lower arm 56b of the pawl will similarly engage the ratchet-wheel 70 thereby through the intermediary of gear-wheels 67, 66 raising the press piston. The transmission ratio for the lowering of the press piston may be varied by replacing the pinion 59 by pinions of greater diameter which mesh with spur-wheels 60a, 60b.