US1294542A - Depositing-machine. - Google Patents

Description

FL 6.5111511110. DEPOSII'ING MACHINE. APPLICATION FILED JULY 25.1918.

1,294,542., Peteneed Feb.18,1919.

2 SHEETS-SHEET 2.

III

e Wm-Me@ mme,

me ms.

40 out in the appended claims.

FERDINANDO G. SALERNO, OF CHICAGO, ILLINOIS.

-DEIOSITING-MCHINE. I

Specification of Letters Patent.' Patented Feb. i3, 1919 Application led July 25, 1918. Serial No. 246,645.

I To all whom t may concern:

Be it known that I, FERDINANDO Gr.

'ing-Machines, of which the following is a specification. A v l My present invention is intendedto be ap- 410 plied to and form a part of a depositing machine of the 'general construction shown in my pending application No. 834,780, filed l April 27th, 1914, and more particularly relates to certain modifications and improvements connected with the nozzles of the depositing mechanism of the machine. It has been found that with some forms of concentric fixed double nozzles heretofore employed, especially those in which the annular opening between the nozzles is restricted,

small lumps, or coagulated-.or hardened fragments of the confectiom or undissolved particles of the material being used will Sometimes lodge between the nozzles and interfere with the free and Vuniform passagel of the confection, maln'ng it necessary to clean the nozzles while the machine.stands idle to obtain a perfectlproduct, and the ob-' ject of the present invention is to provide suitable andl efficient mechanism which will automatically keep the orifices of the nozzles free and unobstructed. To this endI have vdevised and invented the nozzle structure and means for operating V the movable mem 35 ber thereof hereinafter described, yand my invention consists in the combination and organization of coperating parts constituting such mechanism, the essential elements of the same being more particularly pointed Of the drawings, Flgure 1 is a side-view of a portion of thehoppers and adjacent portions of a depositing machine to which my invention is applied; Fig. 2 is a cross The same reference characters indicate the same parts in all the figures of the drawings.

It will be unnecessary for an understanding of my present invention to describe the general construction of the depositing machine to which is applied or of which it forms a part, further than to state that it includes an endless lbelt 1 arranged to be shifted with a step-by-step movement over the surface of an oscillating table 2 which is intermittently lifted to a position adjacent the depositing nozzles while deposits of the two kinds of confection are being deposited through the double nozzles on rows of cakes fed into alinement'with the nozzles, and then llowered as the flow is broken, after which the row, acted upon .is carried forward by the movement of the belt and another row fed into position to receivey deposits when the belt is next lifted. The .two hoppers A and B may conveniently be constructed of lthe two castings 3 and 4, the casting 3 being formed with a back wall 5 and side walls 6 to which is secured a sheet metal plate 7 to make up the larger or marshmallow hopper A, and the casting 4 being formed with a back wall 8 and side walls 9 to which is secured a sheet metal plate 10 to make up the smaller orjelly hopper B. The lower parts 'of the side walls of the two castings meet to form a tight joint, and internally are formed with meeting vvertical flanges 11 by which they are bolted together, but the back walls are offset or separated from'each other to 45 section of the nozzle bar on a larger scale forcing chamber through long inlet ports v13 and 14v respectively opening into the associated forcing chamber near its bottom. The larger forcing chamber is closed at'its top by a rectangular piston 14a and a thinner rectangular supply valve 15 governing the 1015 port 13, and the smaller forcing chamber is closed by a corresponding piston 15 and supply valve 17. A rectangular plate 18 form- 1ng a s hut-ofl" valve is arranged to reciprocate horizontally in a slideway formed in the l taken centrally through one of the double depositing nozzles and longitudinally of the machine; Fig. 3 is a plan view of one4 endl of the nozzle bar,l partly broken away; Fig. 50 4 is a broken sectionof the same,'taken lon-v gitudinally of the nozzle bar (transversely of the machine) on the line 4 4 of Fig. 2; Fig. '5 is a perspective ofthe inner nozzle member, detached from the nozzle bar; and 55 Fig. 6 is a perspective of the outer nozzle.

casting 3, and a similar shut-off valve 19 is provided in the casting 4. As in the case of the nozzle bar described in my prior application, tlie nozzle-bar or nozzle-carrying member of my present novel mechanism is seated in a dove-tailed recess formed at the bottom of the twocastings 3 and 4, such seat being formed partly in one castingl and partly in the other.

By suitable connections unnecessary to be described the main plunger or piston of each forcing mechanism is caused to descend gradually from uppermost position, the supply va-lve at the time closing the supply port,

and the shut-off valve being in outermostposition. After the piston reaches lowermost position and as soon as it begins its upward stroke the confection is sucked back into each of the group of nozzles to which it is connected and which will hereinafter be described in detail, the supply valve remaining momentarily closed and the shut-off valve open, after which the shut-ofi' valve quickly shifts to inner or closed position andv the supply valve uncovers the inlet port. The upward movement of the main piston-oi' plunger now draws a charge of confection into the forcing chamber, and the supply returns to close the inlet port in advance of the downward forcing stroke of the main piston, the shut-off valve also shifting Vto l open or outer position.

The 'novel nozzle structure and associated operating mechanism which constitutes my present invention may now be described. To

the bottom nozzle bar 20,` seated as abovek described in the dove-tailed recess formed at the bottom of the two hopper castings, is secured a series of fixed inner nozzles 21 which are formed with externally screw threaded upper portions and top flange portions 22 by which they are secured to the nozzle bar through screws 23. Coperating with the nozzles 21( is arranged a corresponding series of rotatable outer nozzles 24 formed with internally threaded upper portions ,25 which engage the threaded portions of the inner nozzles and the peripheries of which adjacent the top are each formed with a gear 26. The lower end of the inner nozzle is beveled, as shown, and the orifice of the outer nozzle of such size and shape thatv the longitudinal movement of such nozzle willA vary the opening between the two nozzles. Preferably the screw threads of the nozzle are' of rather steep pitch in order to obtain a proper degree of longitudinal throw, and are double in order that they may be of moderate size. The inner nozzle communicates directly with the forcing chamber in the hopper casting A, and the space between the outerand inner nozzles is in communication with the forcing chamber in the casting B through a series of vertical channels 27 and a circular groove 28 formed in-the the proportions and inner nozzle member anda channel 29 and port 30 formed in the nozzle bar.

ItA is obvious that rotation to and fro of the outer nozzles 24 under proper adjustment will raise and lower them to open and close (or nearly close) the annular opening between them, and' that the: closing movelnent will crush any interposed lumps or fragments of material, with the result of Y keeping the opening free and unobstructed. Simultaneous rotation of all these nozzles is effected by means of a rack bar 31 engaging the gears 26 formed upon them, this rack bar being slidingly secured to the nozzle bar by guide blocks 32 secured to said nozzle bar. The rack bar 31 in the present instance reciprocates through a train of connections actuated by a lever 33 which is caused to oscillate by means of a cam disk 34 secured to a rotating shaft 35, all of such elements being parts of the machine of my aforesaid application. Secured to the lever:l 33 is a short pivot block 36, to which is pivotally connected the lower end of a connecting rod 37, the upper end of said rod being pivoted to one end of \a bell-crank lever 38 which is pivotally mounted in a bracket 39 secured to the frame of the machine. The other arm of the bell-crank is pivoted to one end of a link 40, the other end of the link being connected to a pivot bolt 41 to the rack bar. The lever 33 is one vof the train of connected elements through which the shut-ofi' valve 19 hereinbefore mentioned is reciprocated, and the arrangement of the parts is such that the o uter nozzles 24 will be lowered to open vthe annular spans between the outer Yand inner nozzles at the time that the shut-off valve is open. f Y

In the machine of niy'prior application above mentioned, provision is made for changing the nozzle bars there described (corresponding changes being made if Vrequired `in the feeding mechanism and in my presen-t invention it is contemplated that interchangeable nozzle bars, varying in l spacings of the nozzles may likewise be used, it being only necessary to remove ythe bolt 41 to permit the nozzle bar structure, including the rack bar, to 'be removed as a whole. W'hile I have shown tlie gear teeth 25 as extending entirely around the nozzle 24, the rotary 'movement of such nozzles is in practice but slightly over one-third of a circle, and a properly adjusted and arranged segmental gear of4 corresponding length would therefore be sufficient to accomplish the raising and lowering of the nozzles.

The ordinary form of screw-tlireaded engagement between the inner and outer nozzles shown inthe drawings is sufciently close to prevent upward leakage between the nozzles while raising and lowering the nozzles, 'but any form of spiral groove or 130 slotted connection with a sliding joint between such nozzles would constitute an etplivalent screw structure fulfilling the same purpose and raising and lowering the rotatable nozzles, and I therefore do not intend my claims to be limited tothe specific screw-threaded construction shown.

I claim: 1. In a machine of the class described and having two confection hoppers, an inner sta- .tionary nozzle communicating with one hopper, an outer rotatable nozzle surrounding said inner nozzle and having screw-threaded engagement with a. stationary part of the machine, the space between said nozzles being in communication with the other hopper, and means for rotating said outer nozzle to restrict and enlarge an annular opening between the ends of said nozzles.

2. In a machine of the class described and having two confection hoppers, an inner stationary nozzle communicating with one hopper, an outer rotatable nozzle surrounding said inner nozzle and having screwthreaded engagement therewith, the space between said nozzles being in communication with the other hopper, and means for rotating said outer nozzle to restrict and enlarge an annular opening 'between the e ends ot said nozzles.

3. In a machine 'of the class described and having two confection hoppers, an inner nozzle communicating with one hopper, an outer nozzle concentric with said inner noz# zle, the space between said nozzles 'being in communication with the other hopper and one of said nozzles being stationary and the other being rotata'ble through screw-threaded engagement with a stationarY part of the machine and means for rotating said rotatable nozzle to restrict and enlarge the opening between the ends of said nozzles.

l. In a machine of the class described and having two confection hopper-s, Aa nozzlecarrying member equipped with a Series of rigidly secured nozzles communicating with one hopper, a corresponding series of concentric rotatable nozzles, having screwthreaded engagement with a fixed part of the machine, the annular space between each fixed and rotatable nozzle being in communication with the other hopper, and a common actuating member operatively connected to all of said rotatable nozzles to rotate them.

5. A nozzle structure according to claim l in which the rotatable nozzles are formed with peripheral gear teeth and the actuating mem'ber consists of a rack bar engaging such teeth.

6. A nozzle structure according to claims l and '5 in which the outer nozzles each have an upper portion formed with a peripheral gear and internally threaded. and the inner nozzles each have externally threaded upper portions engaging the threaded portion of the associated outer nozzle.

FERDINANDO G. SALERNO.

Images