Патент USA US2131851код для вставки
Oct. 4, 1938. M. R. ANSTICE 2,131,851 VEGETABLE SLICING MACHINE Filed April 18, 1936 ' 4 Sheets-Sheet l S Oct. 4, 1938. M, R. ANSTICE 2,131,851 VEGETABLE SLICING MACHINE Filed April 18, 1936 4 Shee'gs-Sheet 2 4A. Oct. _4, 1938. M. R. ANSTICE ‘ 2,131,851 ' VEGETABLE SLIGING MACHINE Filed, April 18, 1936 U$‘md - 4 Sheets-Sheet 3 “nu.WWNQmvwv a q\. “Y3Kmg .__N%i Q“. t “mmLaw-., .%%w“.u 5WWN\. FrRwy 51mm ‘ WW8. W 3% @m'v’wm WW5 ‘Oct- 4, 1938’ M. ‘R. ANSTICE 2,13i,851 VEGETABLE SLICING MACHINE Filed April 18, 1956 4 Sheets-Sheet 4 _______. M We“ 5 v 2.13mi Patented Oct. 4, 1938 " ‘ UNITED STATES PATENT oFFicE . > 2,131,851 VEGETABLE SLIQING MACHINE Mortimer It. Anstice, Rochester, N. Y., assignor to‘ Josiah." Anstice & Company, 1110., Rochester, N. Y., a‘corporation of New .York ;_‘ Application April 18, 1936, Serial No."75,216 ‘4 Claims. (Cl. '146—98) The present invention has beenv conceived and partly in vertical section illustrating the .manner it "1 in which the knives will pass over the thickened designed to provide a machine which‘is compara portion of the conveyor at the point where the tively. simple of construction yet is highly ef? - ‘cient in the slicing of various fruits and various vegetables such as carrots, beets, potatoesaor the like into strips of what are often termed “shoe string”.or ‘l‘julie‘nne” shapes. ".19 ' conveyor ends are joined together. Fig. '7 is a view in end elevation of a modi?ed } form of the invention. ‘ . Fig. 8 is a'view in side elevation of the machine _ One of thenovel features androbjects of the invention is to providean improved manner of mounting and supporting cutting knives in re spect to the bed or conveyor of the machine so appearing in Fig. 7. I Fig.9 is a View in side elevation of a further form of slicer. ' ' Fig. '10 is’ a‘ detail View partly in vertical sec 10 that the. knives will at all times have a predeter-. tion illustrating the cage carrying the cutting knives of the machine illustrated in Fig. 9. _ . mined engagement with the bedior conveyor. Fig. 11 is a fragmentary view in elevation of a A further object'in respect to the supporting and mounting structure for the knives is to so modi?ed form of supporting the knives in the design this mechanism-that‘ the knives will lift. modi?ed form of machine appearing in'Figs. '7 and‘permit the passage'beneath them of any andv8 of the drawings. ‘foreign substance; which may accidentally reach the knives and which would have ‘a tendency to One form of the machine embodying the pres ent invention appears in Figs. 1 to 6 inclusive, wherein it will be seen that A represents a metal 20 he frame of approximately a‘rectangular con?g- ~ break, nick, or otherwise injure them. '7 d I . Another object‘of the inventionis the provision .215 _ of a machine so designed that the: connector for uration upon the opposite ends of which are the ‘adjacent ends of the conveyor is protected against being cut or damaged by the'knives and in turn the knivesare protected‘ against damage from the connectors in the event ‘the same should ‘mounted shafts l and 2. A drum or roller is be of a metallic nature.- 1' V ' i mounted upon each of the shafts and is rotatable therewith‘and over these ‘drums an endless con 25 veyor B is trained.‘ Suitable ?anges 3 at the , drum ends guard against longitudinal displace '1 A. still furtheriobject of‘ the invention is the provision of automatic means for clearing the ment of the belt. ‘ _ The‘ conveyor is‘ in the form of a belt which tion is to provide .a‘yieldable supporting means for the slicing knives whereby the knives are preferably has a rubber surface, and as appears 30' in Fig.3 of the drawings the belt may be vof a laminated nature in that its rubber surface 4 maybecarried upon a suitable base such as fab ric 51' The belt may be of a form‘wherein‘ it is freely movable towards and away from the con truly endless in the sense ‘that its ends are vul Other further‘objects, ‘noveljfeatures of con struction and improved results will appear in the illustrated'in Fig.6‘ of the drawings where the following ‘description’when read in the‘ light of able metallic fastening means 8. knives of strips cutv from the vegetables or other ‘ produce-upon which the knives are operating; Another and still‘ further ‘object of .the inven at? v i canized together, or the'belt may be of the form ' the accompanying drawings. . it? belt endsv 6 and ‘i are secured together by suit ' It is to ‘be understood however that the belt , _In the drawing SI ‘ need'not be of a ‘laminated nature as it could be Fig. ‘l is?avview. in side elevation of a machine composed'entirely of rubber, and furthermore it built in. accordance with the present invention. will'be understood that it is not absolutely‘ es . Fig. 2 is atop plan view of the machine. . > ‘sential that the belt be composed of rubber, al as 5 d Fig. 3 is a. fragmentary enlarged-detail viewin' though rubber has been found to be the prefer vertical section taken on the line >3—3 of, Fig. 1. able material to use. Fig. 4 is ‘an enlarged fragmentary vertical sec A shaft 9 is rotatably supported in bearings Hi a5 tional View through aportion of thejmachine bed ‘or conveyor showing in‘vertical ‘section ‘the en formed at one end of the arms II which are piv otally mounted as at 12 to the supporting frame. These arms extend upwardly from their pivotal . tical section. illustrating one of the knife clearing _ supports at each side of the frame and at each ?ngers and the‘enga‘gement of one of the knives ‘sideof the conveyor belt, as appears clearly from Figs. land 2 of the drawings, so that the shaft with the conveyor.‘ .59 (55 ‘ gagement of several of the knives with said bed. Fig. 5 is .an enlarged detail View partly in ver Fig. ,6 is 'av fr agm entaryv diagrammatic view which they’ carry is disposed above the conveyor 2 2,131,851 belt and above the drum at the right hand end of the machine. A plurality of circular knives 13 are loosely mounted upon the shaft and are spaced from one another by suitable spacers l4 also loosely mounted upon the shaft 9. These circular knives and spacers are disposed between rollers C which are loosely mounted upon the shaft. Tubular the movement of the vegetables on the belt con veyor. A slicer is diagrammatically illustrated at E and is positioned above the belt conveyor adja cent the left hand end of the machine. Detailed description of this slicer is considered unneces sary in that it constitutes merely some con ventional form of device for slicing vegetables, bushings l5 extend through these rollers and 10 have engagement at their inner ends with the spacers l6 positioned between the outermost fruits or the like into slabs or slices of any de knives and the rollers while their other ends are engaged by right and left hand threaded knives and the rollers C these members are yield nuts I1. These bushings extend outwardly be 15 yond the outer faces of the hub portions I 8 of weight 2| assures against the knives lifting rath the rollers whereby the nuts can be tightened upon the bushings. With the construction de scribed the knives and bushings can be tightly 10 sired thickness. _ By reason of the pivotal mounting of the ably supported upon the conveyor belt. The er than cutting through any vegetable or fruit slices carried to the knives by the belt conveyor. This particular form of mounting is advantageous in that it will permit the knives to rise and ride clamped for rotation with the shaft by tighten . over any foreign substance which may fall upon 20 ing the nuts 11 and I8 without tightening against the conveyor and be carried to them. In this 20 manner the knives are protected from being the rollers. ' At this point attention is directed to the fact broken or injured as might be the case could they not lift and ride over foreign substances. that the knives are of a slightly greater diameter than the diameter of the rollers with the result 25 that their peripheral cutting edges extend into a plane beyond the plane of the faces I 9 of the rollers. This constructional feature is of im portance in the present invention as will be here inafter more speci?cally pointed out._ A supplemental arm 28 extends outwardly from 30 the upper end of each of the pivotally mounted main arms II and across the ends of these arms is positioned a weight 2|. ,A pair of bars 22 also extend across the space 35 between the supplemental arms 20 and these rods are arranged in separated parallel rela tionship. A series of ?ngers D are carried loosely by these rods and have portions 23 which extend into the space between the knives 13. With their 40 loose mounting, the ?ngers can move axially of the rods and properly center themselves between the knives. Bars of an angular shape in cross section could be substituted for the round rods illustrated. This series of ?ngers constitute a 45 comb which functions in a manner hereinafter to be more fully described. ’ The shaft 2 at the right hand end of the machine extends outwardly beyond the support ing frame and is provided with a pulley 24, which is adapted for driving connection with any suit '60 able source of power drive. Rotation of the shaft 2 and its drum will through the conveyor B rotate the shaft I and its drum. Rotation of the shaft 2 is in a clockwise direction with the result that the conveyor rotates also in a clock wise direction, as is clearly indicated by arrow on Fig. 2 of the drawings. The shaft l at the opposite end of the machine is extended outwardly and carries a pulley 25 and the shaft 9 is extended outwardly and car ries a pulley 26. A driving belt 21 interconnects these two pulleys with the result that the shaft 9 is driven off of the shaft I and therefore by 65 the main source of power drive connected to the main drive pulley 24. The _drive for the shaft 9 is so arranged that this shaft rotates in a counter-clockwise direction, as indicated by ar row in Fig. 1 of the drawings. 70 . Preferably, although not necessarily, the shaft 9 and its knives may be rotated at a greater speed than the travel of the belt conveyor. It has been found that better results in the slicing of certain vegetables can be obtained by speed ing up the rotation of the knives in respect to As mentioned, the speed of the knives will ' vary due to the toughness of the vegetable or 25 the thickness of the slice. It has been mentioned that the belt conveyor itself be rubber, have a rubber surface or have a surface of some similarity to rubber. It is of the utmost importance, for the purpose of assur 80 ing a clean and complete cut of the vegetable slices by the knives, that the knives actually penetrate the conveyor belt. It is also highly important that provision be. made that the knives penetrate the conveyor belt, only a predetermined distance, for otherwise it will be readily under stood that the conveyor belt would be quickly de stroyed. This feature has been taken care of in what is considered to be a particularly novel manner by the provision of the rollers C which 40 are of a predetermined lesser diameter than the diameter of the knives. By reference to Fig. 3 of the drawings it will be seen that the faces I!) of these rollers bear upon the marginal edges of the conveyor belt, which ' belt at this point is supported upon the drum or roller 28. The area of the faces of these rollers are su?icient to prevent the'rollers from actually penetrating the rubber belt although they may slightly compress it. By this arrangement the ' knives actually penetrate into the surface of the 50 belt a distance which is equal to the distance ‘which they extend beyond the rollers, which is of course the actual difference in diameter of the knives and the rollers. The penetration of the 65 cutting edges of the knives into the belt is dia grammatically illustrated in Fig. 4 of the draw ings. After the machine has been in operation for some time the belt actually becomes grooved to receive the cutting edges of the knives, as is desig— 60 nated at 29. ' The problem of de?nitely providing for the pen etration of the knives a predetermined distance into the belt is one which although fully taken care of in a simple manner in the present inven tion was not a problem simple of solution. This is true because belts are not guaranteed to be of uniform thickness throughout their lengths. The present arrangement however will assure penetra tion of the knives a predetermined distance into 70 the belt irrespective of variance in the thickness of the belt. Additionally when the belt ends are joined, as illustrated in Fig. 6 of the drawings it is customary to place a protective covering such as 30 over the connectors or lacings. If metallic con 75 3 2,131,851 necting means‘is utilized this‘ ‘covering is necessary of wood, ‘?nds its way to the conveyor the knife to protect the knives‘ against injury, and if a type blades will ride over it without undue injury due ‘ 7 of lacing is used which'is susceptible of being cut to their pivotal yielding support. Although the machine is particularly and spe by the knives it is necessary to protect-the'lacing against. the knives. ‘ Consequently in ‘either ‘event ci?cally designed for cutting vegetables, fruits or the protecting cover element 30 is necessary with‘ foodstuffs into ‘strips, it is capable of other and different uses without departing from the spirit of the result that the thickness of the belt is mate rially increased at the point‘iwh‘er‘e ‘the belt‘ ends are connected. “10 j I ’ > ‘ ‘ ' V The improved ‘arrangement heretofore de scribed however is s'uc’h as to-assure-‘a prede termined penetration‘of‘ the knives‘ even at this the invention. . The modi?ed form of machine shown in Figs. 7 and 8 can be described in a few words in the light of’ the foregoing description. In this machine the same slicer E is provided but in this instance it point where the belt is greatly thickened. Fig. 6 , delivers the fruit or vegetable slices to a rotatably of the drawings illustrates the manner in which mounted’ drum F the face of which has a rubber the rollers will‘ follow the thickened contour ‘of coating 32'or its equivalent. The knives I3 which the belt and lift the knives the necessary distance to maintain the predetermined engagement of the knives with‘thebeltj’ ‘1' " ‘W’ ' ' are exactly ‘similar to those hereinbefore de scribed, are mounted in spaced relationship upon ' a shaft 33 provided with 'a pulley 34 having belt vide ‘for varying conditions of operation and to connection drive 35with the supporting shaft 36 of the drum, which shaft is provided with a pul 20 ley 31 intended to have driving connection with provide for cutting the vegetables‘ into strips of any suitable source of power. It is to be understood that thenumber of knives “20 and their,‘ spacing can be varied as desired to pro V The knife'assembly is carried by the arms 35 the knives, as well as protecting the operator of and 39 which are joined'by a shaft 45 which is piv or rotatably mounted in suitable brackets 25 the machine, a removablehood or guard 3| is pro .otally M positioned at each side of the drum and con From the description thus ‘far given it will be nected to the drum supporting base H. The knife assembly is provided with rollers C seen that the knives‘ are pivotally‘ mounted in re such as hereinbefore described, which engage the spect to the conveyor ‘which is 'thejbed against coated surface of the drum and are of slightly‘ 0 which they cut. The machine is designed prima any desired width. ‘ For‘ the purpose of protecting vided. so , ' " ‘ ' rily for ‘sale to canners to provide a device by which ~ less diameter than the knives to assure a pre vegetables or fruits can be readily and cheaply cut into strip or shoestring form. However the canner maybe called upon to ?ll an order where determined penetration of the knives into the drum coating in a manner exactly similar to that hereinbefore described. Weights 42 are adjust able upon extension arms 43 of the main knife as slices or slabs, and to enable the canner‘to use the ' sembly arms 38 and 39. Just as in the ?rst described form ‘of machine, slic‘erjE for this purpose the present machine is the customer desires‘ the product out only into provided with a pivotally mounted bracket arm 32 ‘which may be "swung upwardly for engagement with one, of the supplemental bracket arms 20 to hold‘the knives in an elevated position'abo-ve and erates in actually'slicing the vegetables. A modi- - ‘g fled mannerv of providing adjustable means for of the machine without being operated upon by holding the‘knife assembly in engagement with the drum is illustrated in Fig. 11 of the drawings where it will beseen that the shaft 44 which carries the knivesl3 and the rollers C is jour~ the circular knives l3. nalled at its opposite ends in blocks 45 which are ‘ . out of engagement with the belt so that the vege» table slices ‘delivered to ‘the ‘belt by the slicer E may pass o?the conveyor at the right hand end ' _ ' ' j - In operation the vegetables, fruit or other food reciprocable within openings 45 provided in the If the vegetables have been cut into slices one The weight of the knives and the rollers will in itself maintain them in‘proper engagement ‘with the 1' face 32 of the drum and the upward movement ofthe shaft and the knives is adjustably under eighth’ inch thick the knives I3 wouldpreferably the control ‘of the set screws 48. stuff desired to‘ be cut into strips ‘are fed to‘ the slicer E which will cut them into slices or-slabs and drop them out upon the conveyor ,B'which will carry them toward and‘ to the revolving knives. have been spaced to cut the slices into strips one“ eighth inch wide so that the finished strips would be approximately square in cross section. The rotation of the knives will be such as to be proper for the type of vegetableabeing operated upon. The weight ‘2! will assure that the knives will cut the vegetableslices irrespective‘ of their toughness or thicknessl The rollers C are rotating freely on their supporting‘ shaft 9 and are con~ upper ends of the arms. or uprights 41. ’ ' In respect to this particular embodiment of the > machine provision is made whereby the‘knives are rotated in a direction opposite‘ to the direc tion of rotation of ‘the drum and the ?ngers or comb heretofore mentioned in respect to the ?rst lformof invention described is also utilized and ,_ is designated by the ‘same letter. namely D. In Figs. 9 and 10 of the drawings a still differ ent machine isillustrated for accomplishing the _ 'stantly engaging the conveyor belt and at ‘all times cutting of ‘vegetables or the like into strips. The assure proper and'de‘?nite relationship between principle of operation of this ‘machine is similar ‘_ the knives and‘ the conveyor belt.- to the machines previously described but a slight ‘ ‘ \ ' ‘ The vegetable slices will pass through the knives and be cut intothe desired strip ‘form and will be delivered into a receptacle or the like placed at the right hand end of themachine for their reception. ‘Any vegetable or fruit ‘strips whichmight adhere to the knives will ‘be'removed from them by the combs or ?ngers D which'willcause them to‘fall downwardly upon theiconveyorifor delivery into the waiting receptacle. 75 the knife assembly is pivotally and yieldably in engagement with the conveyor against which it op ‘ ' ‘ If a foreign substance,‘ such as a block or‘ stick ly different speci?c form of‘construction in that the knife blades are arranged at right angles to ' the direction of movement of the conveyor rath~ er than in alignment with thedirection of move- ‘ ment of the conveyor. 7 - Describing this particular embodiment of the invention, R. ‘and S designate bases or pedestals arranged in separated relationship. The shaft 59 carrying a drum‘5l is rotatably mounted on the pedestal R while a shaft 52‘ carrying a drum 5' 4 2,131,851 53 is rotatably mounted on the pedestal S. The endless conveyor belt B extends around these drums. ' The drum 5| at one‘end has its stub shaft 54 mounted in a horizontal plane above its stub shaft 55 at its opposite end. By this construc tion the drum is arranged at an angle to the hori zontal, as clearly appears in Fig. 10 of the draw— ings. the conveyor as Well as a reversal in the direction of the cutting knives. vegetables or food-stu? into slices or slabs be conveyor. The slicer which performs this func 10 tion could be positioned remote to the machine and the slices of vegetables or food-stuff brought 56 mounted in separated parallel relationship to the conveyor in any suitable or convenient between the rollers C. The knife blades extend manner. 15 slightly beyond the periphery of the rollers. This cage is rotatably supported on stub shafts 5? and 58 which are suitably journalled in de pending arms 59 of the pivotally mounted arms 60. Each of the arms 60 is provided with an 20 extension portion 6! upon which is adjustably mounted a weight 62. ‘ The arms 66 are illustrated as being pivotally mounted upon the shaft 52 and the arms are of such a length that the squirrel cage rests upon 25 the belt conveyor immediately above the inclined drum or roller 5|. The squirrel cage is given the same inclination as the drum by mounting its stub shaft 5'! in a horizontal plane above its opposite end stub shaft 58. 5 It should also be obvious that it is not neces sary or essential that the slicer which cuts the positioned immediately above or adjacent the The knife assembly is in the form of -a squir rel cage designated as an entirety by T. This squirrel cage comprises a series of knife blades 30 of the machine to that in which it is illustrated in the drawings. Reversal in this manner would mean a reversal in the direction of movement of ' The rollers C engage the belt conveyor and permit the cutting edges of the knife blades to penetrate or cut into the conveyor belt only a predetermined distance, namely the distance which said blades extend beyond the peripheries 35 of said rollers. The conveyor is driven through a pulley 63 and the squirrel cage through a pulley G4. Slices of vegetables are delivered to the conveyor by a suitable slicer E. 40 In operation the vegetable slices fall from the slicer E onto the conveyor which carries them to the slicer blades 56. As the slices pass between the blades and the conveyor belt they are cut into strips, which strips enter into the hollow cage 45 and due to the inclination thereof are discharged through the openings 65 provided in the roller C at the low end of the cage and at the low side From the foregoing it will be seen that the 15 present invention provides an extremely simple machine yet is capable of rapidly, e?iciently and economically slicing all kinds of vegetables into strip or shoestring ‘form. The machine is not limited to operation upon any particular vege 20 tables or to vegetables of any particular shape as it will operate equally as well on carrots or any foods as it will on potatoes. It will be further understood that machines built in accordance with the invention will be 25 economical of operation because of the positive provision which is made to assure the knives out only a predetermined distance into the conveyor. With this attribute a. very considerable saving will be effected in the matter of the necessity of 30 replacement of conveyors. The construction is such that the knives will completely out or sever the entire thickness of the vegetable slices yet at the same time will not detrimentally affect the conveyor against which the knives operate. 35 I claim: 1. In a slicing machine, an endless conveyor having a surface capable of being penetrated by knives, means to deliver slices of vegetables to said conveyor, a rotatable shaft carrying a plu 40 rality of knives rotatable with the shaft and ar ranged in spaced parallelrelationship, a pair of rollers carried by said shaft and of slightly less diameter than said knives, said shaft positioned above said conveyor and freely movable in re spect thereto, said rollers being freely rotatable 45 upon said shaft and adapted to engage said con _ veyor for de?nitely determining the degree of Mention has been made of the fact that axial contact of the knives with said conveyor, means 50 movement of the rollers, T is limited by reason to rotate said conveyor towards said knives, and of the fact that these rollers are positioned at the . means to rotate said knives in a direction opposite inner sides of the flanges of the end closures of to the movement of said conveyor. 2. A construction such as de?ned in claim 1, the roller or drum. This construction assures that each of the knives will continuously contact wherein means are provided for rotating the 55 the belt conveyor on the same line which is of knives at a speed greater than the movement of 55 material importance to assure that the knives the conveyor. will eventually groove the conveyor in the man 3. In a slicing machine, an endless conveyor ner hereinbefore described and that each of the having a surface capable of being penetrated knives will enter and run in its proper groove by knives, means to deliver vegetables to said 60 after the conveyor becomes grooved from con conveyor, a rotatable shaft carrying a plurality 60 tinuous usage. ‘ of knives rotatable with the shaft and arranged It is realized that a pre-grooved belt could be in spaced parallel relationship, a pair of rollers used, but it has been found to be more desir carried by said shaft and of slightly less diameter able not to use such a belt because the belt con than said knives, said shaft positioned above said 65 veyor through its engagement with the knives conveyor and freely movable outwardly in re 65 tends to sharpen or hone them and thus main spect thereto, said rollers being freely rotatable tain them in a bright and sharpened state. In upon said shaft and adapted to engage said con other words, permitting the knives themselves to veyor for de?nitely limiting the inward move cut their own grooves is preferable to pre-groov ment of the knives to determine the distance they 70 ing the belt conveyor. . shall penetrate said conveyor, and the free out Although it is probably obvious, mention is ward movement of the knives acting to avoid in 70 made of the fact that the machine can be re jury thereof by foreign matter on the conveyor, versed without departing from the spirit of the and means for rotating said conveyor and said invention. The machine will be reversed when knives. 75 the knife assembly is moved to the opposite end 4. In a slicing machine, an endless conveyor 75 of the conveyor. - _ 2,131,851 having a surface capable of being penetrated by knives, means to deliver vegetables to said con veyor, a rotatable shaft carrying a plurality of knives rotatable with the shaft and arranged in spaced parallel relationship, a pair of rollers car ried by said shaft and of slightly less diameter than said knives, said shaft positioned above said conveyor, said rollers being freely rotatable upon 5 said'shaft, means holding said rollers in engage ment with said conveyor for de?nitely limiting the inward movement of the knives to determine the distance they shall penetrate said conveyor, and means for rotating said conveyor and said 5 knives. MORTIlVIER R. ANSTICE.