US1939400A - Depositing and decorating device - Google Patents

Description

Dec. 12, 1933. H. LERCHE 1,939,400

I DEPOSITING AND DECORATING DEVICE "Filed Nov. 17, 1932 4 Sheets-Sheet 1 HUGO LERCHE 'INVENTOR M ATTORNEYS Dec. 12, 1933. H. LERCHE 1,939,400

I DEPO SITIQG AND DECORATING DEVICE Filed Nov. 1'7, 1932 4 Sheets-Sheet 2 HUGO LERCHE INVENTOR mam ATTORNEYS Dec. 12, 1933. I H. LERCHE 1,9

DEPOSITING AND DECORATING DEVICE Filed Nov. 17, 19:2 4 Sheets-Sheet s uao LERCHE INVENTOR WAMOZMEQ ATTORNEYS Patented Dec. 12, 1933 UNITED STATES PATENT; OFFICE.

Application November17, 1932, Serial No. 643,000, and in Austria October 24, 1931 9 Claims.

I have filed applications in Austria on the 24th October 1931 and in Austria on the 2nd August 1932, in Netherlands and Switzerland on the 22nd October 1932, in Belgium, in France and in Ger- 5 many on the 24th October 1932.

This invention relates to a device for the .manufacturing and decorating by extrusion of confectionery and pastry-cooks wares of all kinds. Mechanical devices for this purpose have already become known in which the table carrying the baking tin consists of two plates of which the upper (the travelling plate) is adapted to slide together with the baking tin upon the lower (the base plate) while the dough, icing, or other prepared substance is being pressed out of a container through a number of nozzles.

With these known devices, however, the'travelling plate is driven positively, through the intermediary of links and toothed wheel gearing, by

the same lever as actuates the pressing piston in the dough container.

This circumstance gives rise to the drawback that the quantity expressed from each nozzle bears a fixed relation to the length of the path traversed simultaneously by the travelling plate. It is thus impossible with these machines to vary the thickness of the goods produced, or to pile up the substance used at certain points as required, or to produce goods of gradually decreasing or gradually increasing thickness.

The present invention relates to a device in which these drawbacks are obviated by virtue of the arrangement that a motor drive is provided for reciprocating the piston while the travelling plate is moved independently from the piston by a manually operated driving gear.

accelerating respectively the movement of th travelling plate. One form of construction embodying the invention is illustrated, by way of example, in

Fig. 6 is a plan view of the carrying plate for the drive, disposed beneath the' base plate, with the employment of a modified driving member.

' points on the travelling plate to be guided in con- Thus it is possible during the motor runs with uniform speed to produce goods of gradually increasing or gradually decreasing thickness by retarding or Figs. 7 and 8 are a plan view and a side elevation, respectively, of the latter.

Figs. 9 to 12 show four examples of types of guiding plates. Y

Fig. 13 shows in front elevation a modified form of construction. I

Figs. 14 and 15 are plan elevations to be read in conjunction with Fig. 13, showing two different positions of the turning plate.

Fig. 16 shows the driving mechanism for the v press spindle.

of being adjusted by means of screw-threaded spindles 6 which are mounted on the under side of the travelling plate 4 (see Fig. 3). The travelling plate 4 can easily be ,slid, by means of the ball bearing '7 attached to its under side, upon the base plate 8, a system of links (Fig. 2) arranged on the upper side of this base plate causing all gruent paths. To this end the two outermost links 9, 9 are pivoted at 10, 10 to the base plate, while the points of articulation 11, 11 are provided with pins which engage in corresponding holes in the travelling plate 4. Y

The base plate 8 is guided bythe rollers 12 during its .upi and down movement effected, for instance, by means of an eccentric device. On the under side of the base plate there is mounted by means of the bolts 13 the carrying plate 14 for the driving mechanism of the travelling plate. This mechanism, as shown in Figs. 2, 4, and 5, consists of a hand lever- 15 and of a toothed disc 16 which meshes with the pinion 17 of the driving disc proper (crank disc) 18. While the 100 toothed disc 16 is fixedly mounted at 19, the disc 18, which is fitted on the pin 20 attached to the plate 14, can easily be removed, thus making room for other driving means.

The driving isc 18 is provided on its upper side with a le r 22 which is pivoted .at 21, and which carries at its end a pin 24 on which there is rotatably mounted a roller 25. At the same time a leaf spring 28 which is attached at 26, and which is adjustable by means of the screw 2'1, tends constantly to press the lever 22 outwards. The pin 24 engages, through the large and preferably circular aperture 30 in the base plate 8, in a corresponding hole in the travelling plate 4, and thus takes the latter along with it in its movement.

For the controlling of the movement of the travelling plate a guiding plate 31 of the type shown, by way of example in Figs. 9 and 10, is placed upon the base plate 8, and fixed in position by means of the pins 32 which engage in holes 33 in the guiding plate. The guiding plate has an aperture 34 the edge of which corresponds in shape to the desired figure to be produced in the dough or other prepared substance used. The roller 25 on the pin 24 is constantly pressed by the leaf spring 28 against this. edge, the travelling plate being thereby compelled to carry out a move, ment corresponding to the shape of this edge, thus causing the columns of dough emerging from the nozzles l to be laid in the required figures on the baking tin 3.

To the front bolts 13, which connect the plate 14 to the, base plate 8, there is attached a circular rail 35 for the guiding of the hand lever 15 (Fig. 2), on .which rail two stops 36 are adapted to be slid and clamped in the desired position, for the purpose of limiting the stroke of the lever 15. For the rea-dier adjustment of the length of the stroke the rail 35 can be furnished with a graduated scale 37. Strokes of limited length will be used, for example, in the manufacturing of open figures such as crescents and semi-circles.

On the hand lever 15 there is adapted to-be slid and clamped as required a sleeve 38 which carries a leaf spring 39 the bent-over end of which is capable of snapping into engagement with notches 40 in the guide rail 35. In this manner it is rendered easy for the operator, after each small movement of the hand lever 15, to pause for a certain time, as is necessary in the manufacturing of ribbed confectionery.

If it is desired to produce more longitudinal figures, the controlling vmechanism shown in Figs. 4 and 5 is replaced by that shown in Figs. 6 to 8. This latter consists essentially of a rack 41 which meshes with the toothed disc 16. This rack has a slot 42 in which two bolts 20 and 43, pertaining to the plate 14, engage and thus guide the rack. A small bridge piece 44 on the upper side of the rack constitutes the bearing for the control lever 45 which carries at its end a pin 46. A roller 4'7 adapted to rotate about this pin slides, in response to movement of the rack 41, in the slot 48 of a guide plate 49. (Figs. 11 and 12) placed upon the base plate 8. The positioning of this guide plate upon the base plate is effected by means of the pins 32, 32 which engage in holes 50 in the guide plate. The control'slots 48 are shaped to correspond to that of the figures to be reproduced.

It is also possible, as indicated in chain-dotted lines in Fig. 6, to arrange forthe rack 41 to be disposed in a difierent direction, and in this case to be guided by means of its slot 42 on the bolts 43 and 51 on the plate 14. In this case the guide plate can be dispensed with and a slot 52 in the base plate 8 made to serve for the controlling of the lever 45 and ofthe travelling plate 4 (Fig. 2).

In the form of construction shown in Figs. 13,

14, and 15, 8 again denotes the base plate of the shaft 19 between the carrying plate and the toothed disc 16 and is provided with pins 43 which engage in a slot 42 in the rack 41 thereby guiding this latter. The turning disc D has two holes d, d displaced at an angle of 90 to each other, and is adapted to be fixed either in the position shown in Fig. 14 or in the position (after rotation through 90) shown in Fig. 15, by means of the pin Z which is adapted to engage in one of these holes and in a corresponding hole in the carrying plate 14. The rack 41 is provided on its upper side with a bridge 44 which constitutes the bearing for av rotatable control lever 45 the pin 46 of which carries a small roller 47. This roller travels, when, "in response to the actuation of the hand lever 15, the toothed disc 16 effects the displacement of the rack 41, in. the slot of the guide plate (not shown), so that the pin 46 controls the movement of the travelling plate in the corresponding paths.

The endeavour to utilize to the best advantage the superficial area of the rectangular baking tin, or the position of the moulds impressed in the baking tin, often renders it necessary to guide the travelling plate in paths disposed at 90 to each other. For the rapid changing over from one direction of movement to the other there serves the turning disc D which, after the liftrack 41 through 90, so that the hole d registers withthe hole in the carrying plate, whereupon the turning disc is fixed in its new position (shown in Fig. 15) by means of .the pin Z. In this position the pin 46 which controls the movement of the travelling plate engages through that through the intermediary of a slip clutch C which precludes any overstraining of the mechanism which effects the extrusion of the dough or other matter.

The worm wheel 53 is rigidly keyed or pinned to the shaft 54 which in its turn is connected to the carrier 55 of a double pawl 56. When the motor M rotates in the normal direction, the upperengaging arm 56 of this pawl actuates the ratchet-wheel 57 which is fast on the shaft 58, so that the pinion 59 keyed to this shaft drives the spur wheel 60. This spur wheel is keyed at 61 to the sleeve 62 rotatably mounted on the spindle 51, which sleeve in its turn is rigidly connected at 63 to the nut 64. This nut is rotatable but locked against axial movement in the .bridge 65 of the pressing device, so that by rotation of this nut the spindle is axiallymoved and dough or the like is expressed from the case K.

During this operation the spur wheel 66 keyed to the sleeve 62, as also the spur wheel 67 meshing with the last-mentioned spur wheel and 110 ing of the pin Z, is rotated together with the freely rotatable on the shaft 54, and the lower ratchet-wheel rigidly connected at 68 to the spur wheel 67'all run idly, since the lower arm 56 of the pawl 56 remains out of engagement.-

If, the motor M be reversed the shaft 54 together with the carrier 55 and the double pawl 56 rotate in a direction opposite to that of the arrow, so that the lower arm 56 comes into engagement with its appropriate (the lower) ratchet-wheel '70; Through the intermediary of the gear wheels 67-66 the sleeve 62 together with the nut 64 is driven in the opposite direction, so that the spindle 51 lifts the press plate in the case K away from the dough or the like, In this case the spur wheels 60-59 and the upper ratchet-wheel 57 (which remains out of engagement with the arm 56) run idly.

In order to vary the transmission ratio for the working movement of the spindle 51, the pinion '59 can be replaced by pinions of graduatedly-increased diameter which mesh with the spur wheels 60 and 60 For the driving of the lifting movement of the press piston a considerably highertransmission ratio (for instance 67:66:121) is employed, in order to avoid unnecessary loss of time in lifting. v

I claim: a

' 1. Device for the manufacturing and .decorating by extrusion of confectionery and pastrycook's wares comprising a press case adapted to contain dough and provided with nozzles, a piston inthe press case, a motor drive for reciprocating the piston, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a manually operated driving gear for moving the travelling plate independently from-the piston, a hand lever for operating this driving gear..

2. Device for the manufacturing and decorating by extrusion of confectionery and pastrycooks wares comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a motor drive for reciprocating the piston, a travelling plate, receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a manually operated driving gearfor moving the travelling plate independently from the piston, a hand lever for operating this driving gear oscillating over an arcshaped graduated rail, notches or the like on the rail and spring elements associated with the hand lever adapted to snap into the notches for the purpose- 1 piston and, sliding simultaneouslyon a carrying plate, a toothed disc mounted,on the carrying plate and operated by a hand lever, a rack slidably mounted on the carrying plate and meshing with the toothed disc a lever articulated at one end to this'rack, extending through an aperture in the carrying plate and articulated at the other end to the travelling plate for moving the latter.

4. Device for the manufacturing and decorating by extrusion of confectionery and pastrycooks wares-comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a motor drive for reciprocating the piston, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a toothed disc mounted on the carrying plate and operated by a hand lever, a rack slidably mounted on the carrying plate and meshing with the toothed disc, a lever articulated at one end tothis rack, extending through an aperture in the carrying plate and articulated at the other end to the travelling plate, templates interchangeably arranged upon the base plate, provided with control slots and means and a roller on the rack lever engaging these control slots for moving the travelling plate in difierent paths.

5. Device for the manufacturing and decorating by extrusion of confectionery and pastrycooks wares comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a motor drive for reciprocating the piston, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a toothed disc mounted on the carrying plate and operated by a hand lever, a rack slidably mounted on the carrying plate and meshing end to the travelling plate, templates interchangeably arranged upon the base plate and provided with apertures, means for constantly pressing one endof the rack lever against the edge of the template apertures for the purpose of enabling the travelling plate to describe closed figures of varied shape.

6. Device for the manufacturing and decorating by extrusion of confectionery and pastry-cooks wares comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a motor drive for reciprocating the piston, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a toothed disc mounted on the carrying plate and operated by a hand lever, a rack slidably mounted on the carrying plate and meshing with the toothed disc, a lever articulated at one end to this rack, extending through-an aperture in the carrying plate and articulated at the other end to the travelling. plate, templates interchangeably arranged upon'the base plate and provided with apertures, a leaf spring for constantly pressing one end of the rack lever against the edge of the template apertures.

' 7. Device for the manufacturing and decorating by extrusion of confectionery andpastry-cooks wares comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a motor drive for reciprocating the piston, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a toothed disc mounted on the carrying plate and operated by a hand lever, a rack slidably mounted on the carrying plate and meshing with the toothed disc, a lever articulated at one end to this rack, extending through an aperture in the carrying plate and articulated at the other end tothe travelling plate, a turning disc, carrying the rack and the racklever for the purpose of permitting of arapid change of the direction in which the travelling plate. is'moved by the rack.

- 8. Device for the manufacturing and decorating by extrusion of confectionery and pastrycooks wares comprising a press case adapted to contain dough and provided with nozzles, a piston in the press case, a' motor drive for reciprocating ing by extrusion of confectionery and pastrycooks wares comprising a press case adapted to contain dough and provided withnozzles, a piston in the press case, a motor drive for reciprocating the piston comprising a reversible motor for driving the press spindle and lowering or lifting the piston and a clutch between the motor and the press spindle for each direction of the drive consisting of a pawl and a ratchet wheel, a travelling plate receiving the dough pressed out through the nozzles by the piston and sliding simultaneously on a carrying plate, a. manually operated driving gear for moving the travelling plate independently from the motor drive of the piston and a hand lever for operating this driving gear.

HUGO LERCHE.

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