Патент USA US2404694код для вставки
July 23, 194s. M. COHEN Erm. 2,404,694 PARTICLE APPORTIONING DEVICE 2 Sheets-Sheet l Filed NOV. 23, 1942 v , a ì l | . `:.»P\bH/Äl1l\'u. .Ä l\.; ` July 23, 1946. M. coHEN ETAL 2,404,694 PARTICLE APPORTÍONING DEVICE Filed Nov. 25, 1942 2 Sheets-Sheet 2 30 2,404,69l Patented July 23, 1946 UNITED STATES PATENT OFFICE 2,404,694 PARTICLE APPORTIONIN G DEVICE Morris Cohen, Kansas City, Mo., and Gerald A. Jorgenson, Chicago, Ill., assignors to Interstate Bakeries Corporation, Kansas City, Mo., a cor poration of Delaware Application November 23, 1942, Serial No. 466,614 7 Claims. (o1. 259-14) , 1 2 This invention relates to a particle apportion ning from front to rear of the device in parallel ing device more particularly for edible particles relation at each side thereof, and each carrying such, for example, as raisins or currants, which a pair of bearing disks I5 and I 6, making four are introduced into the dough for the making of such disks in all. The bearing disks I5 are here sweet rolls, raisin bread, or the like, in large com 5 shown carried between the legs I I, and the bear mercial bakeries. ing disks I 6 to the rear of the legs where the While the apportioning of particles of certain shafts I3 and I4 there overhang. Resting upon types such, for example, as flour, granulated nuts, the bearing disks I 5 is a rotatable cylindrical and similar generally dry materials encounters drum I1 held thereon by its weight. The drum relatively few difliculties and these may be intro 10 here represents a depositing element. Adjacent duced by means of hoppers. the handling of other the forward end of the drum, its periphery carries types of particles such as raisins involves prob an annular channel piece I8 which receives the lems not encountered in the handling of more dry bearing disks I5 and adjacent its rear end a sim particles, the raisins, for example, being naturally ilar annular channel piece I9 which receives the somewhat sticky and tending to pack together so 15 bearing disks I6. Thus the drum is guided in its as to clog any device such as a hopper or other rotation as presently described and its axial posi conventional apportioning means wherein the tion during rotation is maintained with respect particles are moved largely under the influence to the pedestal I0. of gravity, with the weight of a quantity thereof For driving the drum I1, its periphery may also constantly pressing upon the particles as they 20 carry an external ring gear 20 which meshes with move. a pinion 2l keyed to the shaft I3, this shaft being In the present invention, a unitary portable de a driving shaft and it is continued forwardly of vice is provided in which the particles are not the legs II to terminate in a bevel gear 22, which moved merely by gravity but are maintained in meshes with another bevel gear 23 keyed to a circulation during the apportioning process, par 25 stub Shaft 24. The stub shaft 24 is rotatably tially by gravity and partially by a positive mech mounted in a pair of brackets 25, supported by a anism therefor, whereby the raisins are kept rela platform 26 projecting from the forward end of tively dry and loose at all times, and the raisins the pedestal I0. Diagonal braces 21 extending are finally apportioned through a variable re from the platform to the legs II may reinforce stricted opening. 30 the platform which also provides a support for These and other objects and advantages will be an electric motor 28, the output shaft 29 of which apparent from the following description, taken is in driving relation by means of chain belt 30 together with the accompanying drawings, in with a sprocket 3| also keyed to the stub shaft which 24. Thus, by 'means of the usual electric wiring Figure 1 is a side elevational view of a device 35 which need not be here shown, the motor 28 may embodying the present invention, parts being be connected to a source of electric power and shown in section for clearness of description, and caused to rotate the drum I1 on the pedestal I0 an associated conveyor device; in the direction of the arrow 32 (Fig. 2) on la Figure 2 is a cross-sectional view, partially in horizontal axis. end elevation, taken on the staggered line 2-2 40 In accordance with the present invention, the of Fig. 1 but with the raisin circulation indicated, drum surrounds one end of a depository element and looking toward the delivery end of the device, driving parts being omitted; and Figure 3 is a fragmentary perspective view of the discharge end of the conveyor of the present 45 device and one end of the associated conveyor, indicated also in Fig. 1. here represented by the conveyor device indicated generally by the numeral 33 and which comprises a frame having somewhat triangular side mem bers 34 bolted as at 35 to a cross strut 36 con necting the upper ends of the forward legs II of the pedestal I0, which are shown extended up Referring in detail to the illustrative construc wardly beyond the rear legs to a point approxi tion shown in the drawings, the unitary device of mating the axis of the drum I1 and just in front the present invention is mounted on a pedestal 50 of the forward end of the drum, the latter having designated generally by the numeral I0, having a relatively large axial opening 31 in its forward four legs II which terminate at their lower ends end through which the conveyor 33 extends into in casters I2 whereby the device is mobile. Adja the interior of the drum as well as forwardly cent their upper ends, the pedestal legs II ro thereof. For enhanced stability, the frame side ‘ tatably carry a pair of shafts I3 and I4, each run 55 members 34 extend downwardly in front of the 2,404,694 3 cross strut 36 and may be bolted as at 38 to an plish this the plate 55 is wider than the plate 56 other cross strut 39 carried by the legs II below the cross strut 36. At each end respectively of the frame members 34 are rotatably mounted the and its outer margin is bent downwardly as at 64, both to form the peak 65 and an edge 66 which approaches the edge 61 of the narrower plate 56 along a longitudinal line to one side of the longi tudinal center line of the conveyor 43 but parallel usual conveyor rollers` 40 and 4I , about which are entrained the endless conveyor belt 42 of canvas or the like. The conveyor belt 42 as well as the drum may therewith. The sliding adustment here provided preserves a substantially uniform inclination for the shield plates which permits of a very fine be driven by the motor 28. In this instance, the roller shaft for the roller 40 is extended laterally 10 stream of raisins for example. of the conveyor frame plates 34 to carry a To prevent particles from lodging between the sprocket 43 upon whichjs entrained an endless conveyor 42 and the frame members 34, the latter chain 44 also entrained with another sprocket desirably carry longitudinal angle strips 68, one 45 keyed to a stub shaft 45a mounted on the ex angular portion of each of which rests on the terior of one of the frame members 34. A gear upper edge of the frame and the other angular 46 also keyed to this shaft meshes with another portion of which depends inwardly over the side gear 46a similarly mounted upon a stub shaft margin of the conveyor belt and into close but 46h which has keyed thereon a sprocket 46c. non-frictional proximity therewith. About the latter is entrained an endless chain 'I'he operation of the device is as follows: 41 which is also entrained with a sprocket wheel Having deposited a supply of raisins or the like 48 which is keyed to the stub shaft 24 along with into the drum I1 as at 69 and having replaced the sprocket 3I and bevel gear 23. Thus rotation the door 52 to close the rear end of the drum, of the motor shaft 29 in a direction to rotate the the operator starts the motor 28 thus causing the drum I1 in the direction of the arrow 32 will also drum to rotate in the direction of the arrow 32 move the upper run of the conveyor belt 42 in 25 and the upper run of the conveyor to move in the the direction of the arrow 49. direction of the arrow 49. As the drum rotates, The inner surface of the drum I1 is provided . some of the raisins which lie loosely in the lower with a number of formations such as the lifter part of the drum are picked up by a blade 50 and blades 50, three being here shown, which extend carried thereon to the upper part of the drum. lengthwise of the cylindrical part of the drum I1 30 As the blade approaches its zenith, the raisins fall and project somewhat radially toward the axis oif therefrom under the influence of gravity as at of the drum. Forward of the cylindrical portion 10 and in falling strike the hood 54. Some of the of the drum, the latter is desirably conical as at raisins drop through the slot 63 onto the conveyor 5I margining the axial opening 31 and providing a belt 42, while others, deflected by the hood, fall guard to prevent particles lifted by the blades 35 back into the mass of raisins 69 in the lower part from falling through the opening 31. At its rear of the drum to be again picked up by a later end, the drum has a door 52 which is received with oncoming blade 50. Since the raisins falling off a a snug ñt within the angled margin 53 of another blade as at 10 have some momentum due to the axial opening in the drum, and which, when the rotation of the drum, they will not fall in a door 52 is removed, may be employed to deposit 40 straight line but will have a somewhat arcuate raisins or the like into the drum for disposition as trajectory and the slot 63 may be adjusted, by the _ presently described. adjustment means for the plates 55 and 56 al Further in accordance with the present inven ready referred to, so as to be in this path. Due to tion, the inner end of the conveyor 33 which is various causes, the raisins will not all have the received within and surrounded by the drum I1 same trajectory, but it has been found that a mean has associated therewith means whereby only arc thereof will pass to the right of the peak 65, some of the particles such as the raisins deposited looking at Fig, 2, that is, the proximate side of the in the drum and circulated by the blades 50, fall hood 54 as the blades rotate, and through the slot onto the conveyor, other particles falling back 63 whereby many of the raisins will pass through 50 the slot onto the belt. into the drum to be recirculated. As shown in the drawings, an illustrative ele The raisins carried by the conveyor belt 42 ment for this purpose here includes a peaked hood travel outwardly of the drum and may fall off the designated generally by the numeral 54, and discharge end 1I of the conveyor 33, as here comprising a pair of spaced apart shield elements shown, onto a strip of dough 12 moving in the 55 and 56, which are in the form of inclined plates 55 direction of the arrow 13 on an associated con carried by the conveyor frame members 34 just veyor 14. The dough strip 12 may be produced above the inner end of the conveyor 42 as by in flattened elongated form by means which forms brackets 51 bolted upon the outer faces of the no part of the present invention, but which may frame members 34 respectively as at 58 to overhang be in accordance with the Cohen et al. co-pending the conveyor. The brackets 51 have a vertical 60 application Serial No. 441,580, filed May 4, 1942, portion at which they are bolted to the frame and may, after having had the raisins deposited and an inwardly directed upwardly angling por thereon in accordance with the pr‘ -sent invention, tion 59, in which is an elongated slot 60. Through be then treated and coiled on a longitudinal axis each of the slots 60 passes the shank of a short as described in another co-pending Cohen et al. screw-bolt 6I and this passes also through a per 65 application, Serial No. 429,764, ñled February 6, foration in the plate 55 or 56 as the case may be. 1942, to form bakery sweet rolls or the like. On the upper surface of the plate and threaded As shown in Fig. 3, the conveyor 33 is arranged on the shank of each of the bolts 6I is a thumb at right-angles to the associated conveyor 14, and nut 62. Thus the plates 55 and 56 may be ad the unitary device of the present invention may justably clamped in position over the conveyor 70 be disposed in such position with the conveyor 33 belt 42 normally with a longitudinal space or slot overhanging the conveyor 14 at any suitable point 63 therebetween, providing a restricted opening along the latter, the ready mobility of the pedestal III as by the casters I2 making this possible. Furhere disclosed. Preferably the slot 63 is to one thermore, the particular arrangement of the con side of the peak 65 of the hood 54 and to accom 75 veyor 33, supported as it is in cantilever arrange on both sides and which is selectively variable as 2,404,894 ment on the pedestal l0. avoids interference with the standard 15 of the associated conveyor 14 and permits it to be received in similar cantilever arrangement within the drum l1 at the receiving end of the conveyor 33. The sloping or peaked character of the hood 54 provides a deflector for causing raisins which drop off the blades and which do not fall through posed in the form of a peaked hood over the con veyor providing a restricted opening there between vertically aligned with an spaced above said conveyor, said opening being to one side of C1 the peak in the hood, a rotatable drum sur rounding the conveyor and shield members, blades in the drum for lifting particles disposed therein from the bottom of the drum to the top the slot 63 to fall back into the bottom of the thereof and dropping them on said shield, drum and to be re-tumbled, such tumbling con 10 whereby some of said particles pass through triuting to maintaining the raisins in dry and cool said opening onto the conveyor and others fall condition. back into the drum, means for rotating the So arranged and operated, the device of the drum, means for operating the conveyor, and present invention keeps the raisins constantly cir means for adjusting the size of the opening be culated so that they do not become heated and 15 tween said shield members to vary the number sticky by their own mass, thus avoiding agglom of particles disposed on the conveyor during a erations of the raisins which might result in too given period of operation of the device, while many raisins in one part of the dough and too few causing a controlled stream of particles to be in another part and providing better and more deposited thereon. uniform distribution thereof throughout the 20 3. In a particle apportioning device of the dough strip 12. class described, the combination with a pedestal, of a drum rotatably carried thereon, one end of said drum having a central opening, a pair of dough strip 12 be desired, the plates 55 and 56 parallel frame members mounted in cantilever may be adjusted farther apart so as to widen 25 arrangement on the pedestal, one end of each the slot B3, and, conversely, if fewer raisins are frame member extending through said central desired per linear distance, the slot may be nar opening, an endless conveyor entrained on said rowed. In any case, raisins which fall off of a frame members, a pair of spaced apart shield blade 50 approaching its zenith and which do members providing a shield disposed in the form not fall through the slot‘l 63 to the conveyor 42 30 of a peaked hood over the conveyor having a re Will fall back into the lower part of the drum stricted opening therein vertically aligned with and be recirculated, the peaked character of the and spaced above said conveyor, means for It will be understood that if a greater number of raisins for a given linear distance of the hood 54 being of a sufficient declivity so as to exceed the angle of rest of the raisins and pre venting lodging of the latter thereon. The raisins in the bottom of the drum as at 69 are maintained constantly agitated by thc blades 50 and prevented from objectionable varying the extent of separation of said shield members to vary the extent of said last men 35 tioned opening, blade formations in the drum for lifting particles disposed therein from the bot tom of the drum to the top thereof and dropping them onto said shield whereby some of the par packing which is common in the use of conical ticles fall through said opening onto the con hoppers, screw-conveyors, and the like. 40 veyor and others fall back into the drum, a plat 'I'he gearing is desirably so arranged, as here form carried on the pedestal below the conveyor shown, that the linear speed of the belt 42 is frame, a motor mounted on the platform, power predetermined relatively to the peripheral speed transmission means engaging the motor and the of drum I1. Thus the belt moves a distance drum and conveyor respectively for causing the equal to the length 0f a blade 50 in the interval 45 motor to drive both the drum and conveyor ar of time between which two successive blades ap ranged whereby the belt may move a. distance proach their zenith, so that there are no marked equal to the length of one of said formations in gaps in the sequence of the raisins deposited on the interval of time between which two succes the conveyor, or so as to prevent overlap of suc sive formations approach their zenith, whereby cessive streams so deposited. 50 to cause a thin continuous stream of particles to What is here claimed is: be deposited on said belt and mobilizing means l. In a device of the class described, the .com on the pedestal for ready portability. bination with a conveyor, of a pair of spaced 4. In a particle apportioning device the com apart shield members providing a shield dis bination of a longitudinally movable depository posed over the conveyor providing a restricted 55 element, a rotary depositing element in vertically opening between said shield members shielded encircling proximity to the depository element on both sides thereof vertically aligned with and and adapted to elevate the particles and drop spaced above said conveyor, a rotatable drum them by gravity toward the depository element, surrounding the conveyor and shield members, a deflecting shield within the rotary element and blades in the drum for lifting particles disposed 60 partially covering the depository element, said therein from the bottom of the drum to the top sheld including a pair of shield members inclined thereof and dropping them on said shield, towards each other and extending longitudinally whereby some of said particles pass through said of the depository element and spaced apart in opening onto the conveyor and others may fall vertical alignment with said depository element, back into the drum, means for rotating the drum 65 said shield members being arranged at substan and operating the conveyor, and means for ad tially fixed inclinations with respect to each justing the size of the opening between said other and the depository element, and means for shield members to vary the number of particles adjusting the distance apart of said shield mem disposed on the conveyor during a given period bers, said adjusting means comprising means for of operation of the device, and to cause a `con 70 sliding at least one of the shield members toward trolled stream of particles to be deposited on and away from the other in their inclined planes, said conveyor. whereby to maintain the place where they are 2. In a device of the class described, the com spaced apart in vertical alignment with said de bination with a conveyor, of a, pair of spaced pository element while maintaining a substan apart shield members providing a. shield dis 75 tially uniform angle for said shield members 2,404,694. 7 8 with respect to each other and the depository element. place where they are spaced apart in vertical alignment with said depository element while 5. In a particle apportioning device the com bination of a longitudinally movable depository maintaining the inclination of the shield mem bers. 7. In a mobile unitary device of the class de scribed, the combination with a. pedestal, of a drum rotatably carried thereon, one end of said drum having a central opening of smaller diame ter than the over-all diameter of the drum to provide a conical end for the drum, a frame mem ber mounted in cantilever arrangement on the element including an endless belt conveyor, a ro tary depositing element in vertically encircling proximity to the depository element, circumfer entially equally spaced apart longitudinally elon gated blades on the inner face of said deposit ing element to elevate the particles and drop them by gravity toward the depository element, a de flecting shield within the rotary element and par~ pedestal and having one end extending through tially covering the depository element to cause a said central opening and another end projecting portion of such particles so dropped to be de therefrom, an endless belt conveyor entrained on ñected from said depository element, means for 15 said frame member, a deñecting shield carried rotating said depositing element and means for on said frame with the drum and disposed par- ' moving said depository element arranged where tially over the conveyor longitudinally thereof, by the belt conveyor moves a distance equal to said shield comprising a pair of shield members the length of said blades in the interval of time inclined toward each other and spaced apart to between which two successive blades reach the 2.0 provide a restricted opening therebetween in ver same rotative position with respect to the shield tical alignment with said conveyor adjacent the whereby to prevent substantial overlapping of the particle streams on the depository element from successive blades. 6. In a particle apportioning device, the com bination of a longitudinally movable depository element, a rotary depositing element in vertical longitudinal center line thereof, formations in the drum for lifting particles disposed therein from the bottom of the drum to the top thereof and dropping them toward the conveyor and shield whereby some of the particles fall onto the conveyor and others are deflected back into the drum, mounting means carried on the pede stal below the conveyor frame, a. motor mounted ly encircling proximity to the depository element and adapted to elevate the particles and drop them by gravity toward the depository element, 30 on said mounting means, and power transmis a deflecting shield within the rotary element and sion mechanism carried by the pedestal engaging partially covering the depository element, said the motor, drum, and conveyor respectively for shield including a pair of shield members inclined causing the motor to drive both the drum and towards each other and extending longitudinally conveyor, said drum resting by gravity on said of the depository element and spaced apart in 35 pedestal in position to engage said mechanism vertical alignment with said depository element, and being readily separable therefrom. and means for adjusting the distance apart of MORRIS COHEN. said shield members whereby to maintain the GERALD A. JORGENSON.