US1936891A - Slicing machine - Google Patents

Description

NOV. 28, 1933. A, VAN DUYN 1,936,891

SLICING MACHINE Filed Feb. 28, 1928 3 Sheets-Sheet l I 7 I fl I Nov. 28, 1933. VAN DUYN 1,936,891

SLICING MACHINE Filed Feb. 28, 1928 3 Sheets-Sheet 2 Nov. 28, 1933. VAN DUYN 1,936,891

SLICING MACHINE Filed Feb. 28, 1928 I 3 Sheets-Sheet I, ag A;

fizz/61%;" 59am m Patented Nov. 28, 1933 I q v I 1,936,891 SLICING MACH Adrianus van Duyn,Rotterdam, Netherlapdsfas Signor to U; S Slicing Machine Company, L Porto, Ind., a corporation -of- India'na Application February 28, 1 )28, Seri al No.'257,7l50, I andin Great Britain April 21,1927, I V

ci-olsims 'iol,146 -102) I a This inventionxrelates to slicing machines of saidmemben results in actuation of theofeed I the kind in which the substance to be sliced is mechanism. The movable member maylbesas-f q moved to and fro 'past a's'licing knife, or, con sociated -with a= locking member 'forsholding .it versely, the-knife is moved to and fro past the against movement :at the commencement of the -5 substance, the stroke of the movements being strokes in ordertoactuatethe feed mechanism; 9,.

variable at will to suit thewidth of the substance. A part movable with the substance-carrier, .or

i In such machines, it is usual to provide feed the. knife-carrier, mayibe adjustable; so as-to mechanism for automatically advancing the subregulate the thicknessgofthe, slices to be cut.

stance across the cutting plane of the knife, prior 7 Two embodiments of the invention :are illusf d I '10 to each slicing stroke, by an amount equal to the tr'a'ted by waylof example in .the accompanying 6;;

thickness of the slice to be out. It is desirable drawings in'which a l that the slices cut during a series 'of slicing I Fig. -l isan elevation,-.partly in section, of a 7 strokes should be of the same thickness, and, to slicing machine of the .reciprocatory carriage type effect this, it has previously been proposed to having the invention applied thereto} provide slicing machines with devices which are Fig; 2 is a'fragmentary plan thereof;

subject to the disadvantage that they require to Fig. "3 is a fragmentary detailview showing be adjusted in accordance with the length of the alocking member and associated parts, 'hereinslicing stroke, this length being dependent upon after referred to; l 7 1 l the width of the substance 'to'be sliced. Fig. 4 is assection on the line IVIV10I'- Fig.

This invention has for its object to remove the 2; and 5 a above disadvantageand to this end comprises *Eigslb and .6 are elevations-iotaslicing mar-J: slicingmachines in'which the carrier for the chine'of the swingingarm.typehaving-the, in-Qv substance to be sliced (or the carrier ofthe slicvention applied thereto,"the working'partsi being ing knife) actuates, in its stroke, the feed mechshown in diiferent positions.

anism of the machinein such manner that equal Referring to Figs.-1 to 4, the/slicing 80 feed. movements are transmitted to the substance therein shown comprises a rotary slicing knife so as to obtain slices of the same thickness)- in 1 which may be driven either vby a motor or-by spite of any variation in the magnitude of {the hand independently of thexreciprocatory car:- strokes of the carrier and without the'necessityriage-Z, the latter being -slidab1y, mounted .on

- The slicing machine preferably hasa-"member the machine; The carriage2 jis adapted -.to sbe arranged to move in'unison with the substance; hand-reciprocated by means of 1 a handleofi-in carrier, or the knife-carrier, throughout part of order :to carry the I substance, 7,.L to' be siicedmto the slicing and return strokes, the arrangement and fro'fp'ast' the knifeolp A; clamping device substance-carrier, or the kniie carrier, and said feed plate 9ladapted to be; moved across the m f sul in a u tion, to predetermined carriage 2 toward the knife by an-intermittentl y extent, of the feed mechanism of the machine, a m f d' lo. cti wjth a slegmena for adjusting any of the working parts. guide' b'ars 3, 4fmounted on the;base plate -5,of-

being such that relative movement between the 8 is, provided for securing the substance 7,,toI a 9o irrespectively of the magnitude of the stroke. m feed'nut 11 mounted on of meieed- 49 When the inven is app i t0 it Q iQ Q plate '9'. The feed screwqlO 'isjjournaled' ina' the reciprocatoryparfiage t t m e y bearing on the carriage 2 "and has secured be adapted Slide in unison with said carriage to it a' ratchet wheel 12 with which co acts a along om of the carriage'guides throughout part" pawl 13 atone end of a' lever arm l i pivqtallyf of the slicing and return strokes, the arrangemounted midwayOf it l ethfinge'n,u thr do 1001:

ment being such that relativemovement between i I the carriage and said member results -i'n'actua-' i feed i g i b J l mption, to a predetermined extent, of the feed meche apparen i i anism. When the invention is applied to a marecurremlyi t 9 3 9 nd Su stan e? t e.

chine of the reciprocating knife type where the 011 wi b d p- -st owar th 115 1 335; 1

knife is mounted on a swinging arm, the member n ufih ..QX 6 :Q I1 i ed ns me sms s 41% I05 is'adapted to slide along a stationary guide in termihine thic ness o h ,slice se e cdi unison with the movements of the swinging arm t W 11 also be sappa nt t atxby :varyin ih throughout part of the slicing and return'strokes" a p tud O t fi rocking imflvementsbthe t icki I lthereofi the arrangement being such that relaness of' the slices will beiproportionately varied.

tive movement between the swinging arm and" 'Iheconstruction: and 'operation .so'-,far dello I Loosely hinged in a recess 17 formed in a pro- 1 bar 3. 'ing .in the collar 19 throughwhich. the bar 3 passes areso shaped asto be capable'of biting' jection 18 at the end of the block 16 remote from the arm 14, isa locking member constituted by a collar l9 which loosely embraces the into the bar and thereby lock the block thereon. The'collar 19 is normally urged toward its biting position by a spring 20 interposed between it and the block 16. A projection 21 is formed" atthe end of the block 16 opposite the projection 18 and co-acts with a facing 22formed in one end of the carriage 2.. Adjustably mounted hear the other end of the. carriage I is a rod,. strike, or abutment member 23 in alinementwith the topof the collar 19. The rod;23 is slid-' ably mounted'in webs 24 on the underside of' the carriage 2 and is movable endwise into one or .otherof a number of positions by means of a hand lever 25 which co-operates with a notched gate 26 and can be locked in any, selected position .on, the. gate 26. by causing a spring-urged detent 27 to engage the proper notch 28,. The

lever 25 is fulcrumed at .29 on the underside of the carriage2 and is-pivotally connected at '29 to the rod 23.. x

In operation, the. handle 6 1s grasped and the carriagez .is moved toward the knife (i.'e. toward the right of Fig. 1, which represents the parts shortly after the movement has commenced).

' The collar 19 .is biting the bar 3 an dlthe block 16 is therefore held stationary, so that the fac-,

:ing'22moves away fromthe projection. 21. and

.therod 23 "moves toward the collar .19.", At thev same time, the arm 14 is rocked ,by'the pull of the link 15, so that the feed screw 10 is par- ,whereafter the block 16 moves in unison with the" tially'rotated and-the substance 7115 advanced across the cutting plane of the knife. The rock? ing of the arm 14 continues until the 'collar'19 is released from the bar 3, this 'being efiected when the rod 23 strikesthe collar and rocks it against the. action of the spring 20, whereafter. along the bar the blocklfi-is permitted to slide sin-unison with the carriage 2; '5

. LWhen' the slicing operation has: been carried 7 out, the carriage2 is returned toward the left by Figll. The rod 23 then moves away from the col-v larv 19. which thereupon moves into its biting position under the action of the spring20 and locks the block 16 to the bar 3. The arm 14 now returns toward its-initial position, which it reaches just as the facing 22 contacts with the projection 21- andurges the. block 16 to release the collar'19;

reciprocatory carriage 2 throughout the remainder of the return stroke.

I If desired, the collar 19 may be provided with will be obvious from the previous description.

In-the constructionshown, adjustment of the.

position of the rod 23 would result in adjustment of theilost motion betweenthe block 16' and. the

The upper andlower walls of the open 7 .tion ,of the. machine, the operator has simply'to carriage 2, this lost motion being proportionate to the amplitude of the rocking movements of .the

have a constant amplitude. With thisarrange-f ment an adjustable shroud of well-known construction and operation could be incorporated in the pawl and ratchet mechanism, whereby the thickness of the slices could be regulated.

It will therefore be obvious that, in the operaset the feed 'rnecham'srn to give the desiredthickness of the slices; thereafter he pushes the carriage until a slice is completely severed and then immediately returns the carriage to a point in' which the substance is a short distance beyond the cutting edge of the knife. The slicing operamovements are transmitted to the. substance automatically at the beginningjof each slicing stroke and are quite independent of. the extent thereof, no initial adjustment. being necessary to suit the width of the substance to'be sliced." In the embodiment of the invention shownin Figs. 5 and 6, the construction and operation is analogous to that alreadydescribed with reference to Figs. 1, to 4. The invention is shown applied to. a slicing machine of the swinging arm type, in which the knife reciprocates relative to the work support, comprising a slicing knife 41 which may be rotated in well-known manner either by swinging the arm 42 to and fro past the substance clamped on the feed plate 49 or independently of the swinging arm by an electricmotor. As in the previously described construction, the feed mech-;

anism includes-a feed screw 50, aratchet wheel 52'thereon, a pawl 53, and a lever 54,54 of which anisrri is adapted to be actuated by, a block 56 slid:

ably mounted ona stationary bar 43 secured to the frame 45-of the machinathe block 56 having loosely hinged-to it a collar 5 9 adapted to'bite into the bar 43 in order to lock the-block 56, temporarily thereto. The collar'59 is centinuously urged toward its biting position by a spring indicated abracket 63' on anarm 42 secured to, the pivot or the swinging arm 42,-"and is formed with a tailat 60. The collar 59'is disposed in the path of a set screw or striker ,63, screw-threaded through piece 70 disposed in .thepathof a striker'll on,

theswinging arm. Thearm 42 is disposed at the sideof the frame 45 opposite to the swingingrarm a bellcrank lever 55 fulcrurned on the arm 42', a link-72 interconnecting one arm. of the bell crank lever 55 and the block 56,, and two pinjointed links '73, 74 interconnecting the other arm of the bell crank lever 55 and the lever arm 54'.

thepin-joint between thelinks 73, 74 being carvried atone end of anarm 75, pivoted at its other endon the frame 45. The above system is so con- ,trived thatthe pin-joint,,55 between the bell crank lever 55 and the link '73 is co-axial with the axis of swing of the arms 42, 42' throughout that part of the slicing stroke subsequent to the actuaset forth. 7

' tion of the feeding mechanism, as hereinafter In operation, the set screw 63 is adjustedto.

bring the pin 55 over the center of oscillation of 145,;

. 115 the arm 54 carries thepawl, 53. The feed mech- 5 form the slicing operation. At the commencement of the downward stroke (as shown in Fig; 5) the striker '71 moves'away from-the tail-piece and permits the collar 59', under the action of the spring '60, to lock the block 56 to the bar'43, the bell crank lever 55 being caused to rock'about its fulcrum and the feed mechanism being thereby actuated. When the set screw 63 strikes the collar 59 'andreleases the-block 56, the latter moves along the bar 43. 'Since the 'pin-jolnti55,

throughout theremainder of the slicingstroke, is located substantially in the axis of swing, the lever 54, 54 will remain at rest and the feed mechanism will not be in any way affected. The feedmay be varied by a cam on the feed screw 52 to raise the pawl 53 during a predetermined portion of the stroke of member 54. Such a cam is well known in the art towhich this invention pertains.

Onthe return, or upward, stroke ofthe swinging arm 42 from its lowermostposition IFig. 6), the set screw 63 will move away. from the collar 59 and so permit the block 56 to-be locked, resulting in the bell crank lever 55. rocking toward its Fig. 5 position and returning thepawl 53 toward its initial position in readiness for the next feed-- ing stroke. Just as the pawl 53 is about to reach its initial position, the striker 71 contacts'with the tail-piece 70 and thereby releases the collar 59,- so that the block 56 is caused to slide along the bar- 43 and the rocking of the bell crank lever to cease.

As in the previous embodiment, in lieu of arranging to regulate the thickness'of the slices by the means shown. a fixed abutment might'be provided in place of the setscrew 63, and an adjustable shroud incorporated in the pawl and ratchet mechanism for regulating the'- effective stroke of the pawl. I If desired, the bar 43 could be formed 'arcuate with the axis of swing of the arm' 42 as center.

The embodiments-of the invention herein described andillustrated have been chosen simply by way of example and many modifications could be made without departing from the-scope ofthe] invention.

I claim: r I

1. Ina slicing machine having a movable element and a feeding'mechanism; a feed actuating mechanism comprising in combination; a guide having a member'guided thereby, a'latch normally holding'said member fixed'with relation to said guide, means operatively connecting said member with said feeding mechanism, an abut-. ment mounted on said movable'elemerlt to release said latch when said movable element is' moving one direction and means on said movable element to move said guided member when said is moved in the opposite dimember with said feeding mechanismyan abutment mounted on said movable element to release said latch when said movable element is, moving in one'direction and means on said movable element to move "said guided member when said movable element is moved inthe opposite direction, said abutment comprising a memberfad justable to vary the distance betweensaid abut-- ment and said latch;

- 13;-In1a. slicing machine; a base member; two I elements,'one movably and the other stationarily mounted on said basemember, said elements comprising'a slicing'knife and a work support; a work a I feeding mechanism; a guidemembermounted on said base, a" guidedjmember mounted Ito move along said guide; means to :normally' hold said guided member in fixed position on said guide;

means connecting said feeding mechanismwith said guided member and lwith said,,movable' element to actuate said feeding mechanism when said movable element is moving andsaidg'uided element is held relatively stationary with respect thereto; means carried by said movable element to release said holding means after said movable element has moved through a part of its range I of movement and to move said "guided member.

with said movablemember to prevent further actuation ofsaid feeding meansduring movement of said movable element through afurther por tion'of its range of movement. v

T 4.'In' aslicing machi'rieya base member? two elements, one of said elements being s'tationarily mounted on said machine and the other of said elements being mounted for reciprocation relative to the stationary element, one of said elements comprising a slicing knife and the other of said elements 3 comprising "a work support; a work feeding mechanism; a guide member on said base,

a guided membermounted to move alongsaid guide, means-to normally hold said guidedmember fixed on said guide;-means-connecting said feeding mechanism with said guided member and with said-reciprocative elementto actuate said feeding mechanism when said'movable element is}; moving and said guided element isheld relative? ly stationary with respect thereto; meansfcarried by said reciprocating element to rlelea'seysai'd holding means after said reciprocating element has moved through a; part 'of'itsrang-e o'f move-i f ment and to movesaid-guided'member with said reciprocating element to preventfurther actuartion of said feeding means during-movement of said reciprocating'element'througha furthenpori tion of its rangeof movement. i v 5. In combination with aslicing, machine having two elements vone-stationarily mounted and l the other, mounted forreciprocation "relative" thereto,- said element'sicomprising a workg,jsup'- port 'and a slicing knife structure a guide meme ber,,a member slidably mounted tliere'on,-= means" to normally hold'saidmemberstationary with respect to said "guide member; a feeding jmechanism for said-work support,means connecting. said slidable member, reciprocating element and" feeding mechanism to cause the actuation of, said";

feeding mechanism when said reciprocating ele'-' ment is moved in one direction withsaid slid; .able member held stationary, said connecting means being-inoperative to actuate said feeding mechanismbut causing. a resetting thereof when said reciprocating element is moved in the opposite direction with said slidable memberheld;

stationary.

6. In (combination with a slicing machine havinggtwo elements one stationarily mounted and the other mounted for reciprocation. relative thereto, said elements comprising a worksupport and a slicing knife structure; a guide member, a member fslidably mounted thereon, means to normallyhold said member fixed onsaid barga feedv 1 ing mechanism for said work support, means con- I saidreciprocating element having means to engage and move said member therewithwhen slaid necting said slidable member, reciprocating element, and feeding mechanismto cause the actuation of said feeding mechanism when saidreciprocating element is moved in one direction with said slidable member held stationary, said connecting means being inoperative. to actuate :s'aidfeedingmechanism but causinga re-isetting thereof when said, reciprocating elementjis moved in the opposite direction with saidslidable meme ber held stationary; means'gon said reciprocating elementto engage and release said holding means when said reciprocating element ismoved in said first-mentioned direction and to move said slidable member with said reciprocating element thereby rendering said feeding mechanisminopcreative, and means on said reciprocating element effective during its reverse movement, and after saidfirst-mentioned means on said element has disengaged said holding means, to return said slidable member to its position-occupiedbefore its engagement with its first-mentioned means on said element; 1 c I I j '7." In combination with a slicing machine having two elements one stationarily mounted and the other mounted for reciprocation relative thereto; said elements comprising a Worksupport and a slicing lmifestructure; awork feeding mechanism including a feed screw connected to actuate one of elements and having a ratchet thereon a pivotally mounted lever having a pawl atone end to engage said ratchet;-a guide memher having a member slidably mounted thereon; means .-to normally hold said slidable member fixed on said guide; means connecting said slide able member, reciprocating element and lever to impart rotation to saidscrew through said-pawl v and ratchet-when said: reciprocating element is I moved in one direction with said slidable member 'heid'stationary, said connecting means causing a re-se'ttingiof said pawl on saidratchet when'said reciprocating element is moved in the opposite direction with said-slidable member held stationary.

8. The combination-set forthin' claim 'iwherein said abutment: member is adjustable, relative .t-o

'saidlatch bar to vary the rotative movement m parted to said feedscrew. II I 9. Inja feeding mechanisr for slicing machines. having ,a stationary element and a reciprocating element; a feed ,.sc11ew{connected to aetuate one at aid, elements and having a ratchet-thereon H pivoted lever carrying apawl to engagesaid ratchet; a guide having amember-slidably mount-I ed thereon, a latch normally holding said member fixed on said guide; means connecting said memher, reciprocating element andrlever to impart rotativemcvement to said lever when said element is re ciprocated whilefsaid-memberis held 'stationary.

3 .10, Ina ceding mechanism J for slicing .ma

chine's hav ng a stationary element and r a reg ciprocati ng element; a feed screw connected to. actuate one of said elements and havinga, ratchet thereon, a pivoted lever carrying a pawl to en-V gage said ratohetj a guidehaving a member slidably mounted thereon a latch normally? holding said member fixed on; said guide; means connecting said member, reciprocating element andlea ver to impart rotative movement to said lever when-said element is reciprocated while. ,sa'id;

memberis held stationary, said reciprocating element carrying an abutment'membervto release said latch and move it with said element after said elementhas started to move in'one direction;

said member fixedon said-.guide,- a lever pivoted element moves in the opposite direction; thepo 'sition of said member being so related. to said abutmentand said last-mentioned means that said last-mentioned means engages saidmember after said abutment has moved away from said latch. q p I II 1 'l1. In a slicingmachine having a slicing knife 'anda reciprocating work support; a feeding mechanism for; said wor. support; a'guide'having amemberslidablymounted thereon; latch means, releasably'mholding said member to said' guide; means connecting said member, support, a [and feedingmechanismto actuatcsaid feeding I mechanism when said support is. moving, and p said member is held relativelystationary, 7 12. In a slicing machine havingaslicing knife and a reciprocating g work-support; a feeding mechanism for said worksupportga guidehaving amember slidable-thereon; said/work support;

feeding mechanism and-memberloeing connected together to actuate said feeding mechanism-when;

saidsupportis moving in one direction withsa-id member held stationary and to re-set said feeding mechanism to initial operative position when said support is moving inlthe'. opposite direction'lQO with said member held stationary-and means co-operating between 'said meinber and work supportto reciprocate said membe ion said guide during a-portion of each freciprocatiye movement of said work support. j I I 13. In a slicing machine having ,a slicingknife andr a work support mounted for reciprocation I past theedge-of said knife; a ratchet operated 'feedscrewon said work support and connected vtherewith to move it toward and away from said 1.10

knife :upon rotation of said :screwia lever pivoted on said'screw and'havingapawl atone end to en;- gage'said ratchet, a guide hav-ing a member slid: ably mounted thereon, a latch normaliy holding to said member and to the other end of saidpfirst-c mentioned lever; an abutment mountedonrsaid work-support at one side of said latch to contact therewith and release said latch; during movement of said support in one direction and-means $20 said member; fixedon said guide, av'lever pivoted to said member and to the otherendofsaidfirstmentioned lever; an abutmentfmember mounted 135 on said work support at one sideof said latch to contact therewith and release said ,latchduring movement of said support in one directioneand means on said support to contact with saidinemher and move said member with.saidjsupport m when said support moves in the opposite direction,

saidabutment comprising a slidably mounted rod, and means to adjust said rod tovary the distance I between theend ofrsaid rod and said latch. I v v '15.; In a slicing-machine having a slicing knife 14,5 and a reciprocating work support, a feed mechanism connected with said work support to move 7' it toward and away from the plane of the edge of said knife; a guide upon which said worksupo i oun d; ame nbelgsl dah r mquni w J aw;

said guide and operatively connected with saidfeed mechanism; said member having-k means releas ably engaging said guide, andmeans actuated by said reciprocating element to. releasesaid latch when said element is movedin one direction and means whereby said element movessaid member when said element is moved. in the opposite direc- 16. In a slicing'machine the combination with. a slicingknifaof a work support, said knife.-

and work support being mountedfor relative movement to cut slicesfrom material onrsaidy support, feeding means. for' feeding said material towards the cutting planeof said knife, a member for actuating said feeding'means, means for normally holding 'said member in av stationary position, said feedingmeans being operated by said member and while said member'is in its normal position, and meansoperablefrduring the movement of said knife. and support relatively to each other for movingsaidlmember outof its normal position to thereby interrupt the feeding;

movement being given to saidsupport.

17. In a slicing machinefithe combination with a slicing knife and a work support mounted for relative reciprocating movement substantially parallel to the cutting ed'ge of theknife, of: a

feedingmechanism for moving said work support towards the cutting plane of said knife to thereby position the material ina po'sition'such that slices 'may be cut-therefrom by said slicing knife as said knife and support move relative to each other, a--member operatively connected-to said feeding'mechanism adaptedito actuate said feeding mechanism during the relative movement' of saidiknife and said support toward eachother during said" first mentioned relative movement, means'for engaging said member during said firstrelativereciprocationfor renderingsaid 'member inoperative to actuate said feeding mechani'snL said member being engaged only after'aselected predetermined feeding movement has been g-iven to said support, andmeans for varying thedistance through"which.said engaging means-moves before itengages said member 7 to render; said member inoperative; 18. A slicing machine'comprising a movable table, a 'member normally 7 stationary 'during' movement of said "tabla-feeding mechanism on said table for feeding material along said tableand operatively connected'to said memberjsaid member causing actuation of said feeding mech: anism while said member is'stationary and'means for rendering said member inoperative to'actuate said feeding means comprising means constructed to move said normally "stationary member and thereby'prevent said me ber from actuating said feeding mechanism;

19'. In a slicing machine, the combination with a slicing knife, ofa-wor k support, said knife and work support being mountedfor relative movement to cut slices from material on said support, feeding-means for feeding, said material towards the cutting plane of said knife, a member fer'a'ctu'ating said feeding means, means-for nor-f mally holding said member in a stationary posi- .tion', said feeding means beingioperated by said member and while said member is in 'itsnormal position, and means operableduring the move-.

mentof said knifeand support relatively to each other for moving said member out of its normal position to thereby interrupt the feedingm'ovement being given to said support", said last men tioned means beingadjustable to vary the time of interruption ofsaid feeding movement.

a 20. In a slicingmachine; the combmatio ildithsri a slicing knife and a work supportmounte'dforrelative reciprocating movement, manual means.

for moving said slicing knifeandwork supportrelative to eachother over any selected portion of their permitted path 'of{ relative movement,-

feeding mechanism for moving said. worksup-v port toward the cutting plane-of said kni fe, ,a- ;v

member operatively; connected to sai'd feeding;

mechanism adapted to. .,ac tuate. said feedingl mechanism during the relative movement of said;

knife and support toward each other and, auto matically operable at the beginnin of themqve men of said knife, and support toward eachpther irrespectiveof the relative positions of said knife;

and. saidsupport-whenthe knife and support begin their movement toward. each other means for engaging said member during saidrelar tive reciprocation'for rendering-said member. I operative to actuate said feedingmechanism, said membe'rbeing engaged only after'aselected pres: determined amount of,said-firstmentionedrela toward each other.

21. In a slicing-machinefthe combination a stationary;support,,an arm. pivoted onpsaidr tive movement, of said knifeandgsaid-support.

support, a knife rotatably carriedby said arm I eccentric to. the pivot ofsaid knife, a secondisup;

port for .the substanceto bessliced mcans for; feeding said second: support .toward'the; cutting.

a third support movable in unison witlisaid first arm and controlled .therebyand pivoted concentric with'the'pivot for said firstarm, means c'on-vnecting one. arm; of saidflbell crank to said feed-r} ing mechanism, a releasable clutch mechanism connected to the -other arm of Jsaid. bell crank,

said clutch mechanism being normallyL held: sta t ionary :with respectstoksaid second. support. by

means comprisingl' said clutch mechanism to s cause feeding movement tobeimparted toisaidf 7 I ing means, and means controlled by' themoVeL-l 1 mentqof said first arm for releasingisaidclutch feeding. mechanism throughfsaid"interconnectemechanism after a predetermined mqvementof said first arm to prevent furthea-feedingmovemerit of said substance support.

= "22. A device as claimed'in' claim inwhich the releasable clutch mechanism has means'ase sociated therewith for engaging means on said 7 first arm to return-saidreleasableclutch-1 86 1 5}- T anisrnto'its' normal position onthe stroke of said knife opposite .,to'-"that stroke whichcauses feede ing'movem'ent so that the l clutch mechanism is again operatively positioned to effect the-"next x feeding; movement of the substance support,'i;f :='23;"A.device as claimed in claim 21" inwhich an adjustable stopisusedto release said clutch I mechanism 'at different positions of said' flrst arm in its path of movement.' 24. in a' slicing machine having .a work support and a slicing knife-mounted torecipi ocatejpast.

"said work" support, a feeding mechanismforsaid 1 work support, a 'guide having' amember' slidably mounted thereon, latch m ire1e3sab1y-hq1d+ ing said member to said guide, a pivotally mourn-, ed arm upon h e -m0unted;'means anism constructed to move, andin, moving-actuate said feeding mechanism when said arm is moving and said member is held relatively stationary;

I In aslic-ing machine having 'awork suppo :v connecting said member;arm and feeding mecli i I65 7 l tionary,saidmeanscomprising linkage mounted pivoted arnr carrying 'a sliding lrni'fe, said arm being -mo'unted' to "swing saidknife-to 1 and fro p'ast said-work support, a" feeding mechanism" for said work support, a guide having a member slidably mo'unted thereon latch meansreleas' ably holding said member to said gu'idejmeans' connecting said member, arm and'feedi'ng mechanism constructs" to move, and in moving-actn are said feeding ,mechanism when said "arm" is 7 moving in-one direction and While said member is" held by said'latch" means-andmeans' tore-set said'feeding-f'mechanism to initial operative positimrwnen. said arm moving in the Opposite direction with said member held stationary, and means" co-ope'rating between, said member and arm to-reciprocate said member on saidguide during fa portion of each to and fro movement ofsaid arm.-

26. In.a-s1icing1=machine having aWork sup- 7 port and a slic'ing kniie mounted to reciprocate past'saidwork support, a feeding mechanism'for said' work support, a guide havinga' member slidably mounted thereon, latch means: releasably "holdingysai'd member tosaid guide, 'a pivotally mountedarm' upon which said knife is mounted, means-connecting said member, arm, and feeding me'chanisin constructed to move, and in moving actuate said feeding mechanism" while said arm said arm is movingiin the opposite direction.

27. In a slicingmachine having a'work support and a slicing knife mounted to reciprocate past said work" support, 'a feeding mechanism for SaidLWork'suppOrt, a, guide having a member slidablymounted thereon, latch means releasably. holding saidmember to said guide, a pivotally mounted arm upon which said knife is mounted;

means connectingjflsaid ;member,' arm, feeding mechanism constructed to move, "and in moving J actuate said feeding mechanism. while said; arm is moving, and said member is heldrelativelysta- 'tionary, saidimeans comprising a pivotedkbelr crankxlevermounted-to move with saidarm, a

lever connecting-said'member with one arm of said bell crank leverand a leverpivoted to the other end of said bell, crank lever and connected r withsaid feeding mechanism, and means move ingwith'said arm to release said latch .as said arm moves in one direction; I V

'28.-In;-a slicing machine havingQa Work sup- 3 port and a slicing knife. mounted toreciproc'ate past said: work support, a feeding mechanism {or said work support, axguide having amember slidably mounted thereon, latch means-wreleasably holding said member to said guide, ,a pivotally mounted arm upon which; said :knife is mounted,

means jconnecting said member, ;arm, feeding-- mechanism constructedto move-andin moving actuate, sai feeding mechanism while :s'aid arm is moving andsaid member is held relatively stato movewith said arm and eonnectedwith said member and a linkpivotally connected atone em to; said linkage and :pivotally connected at --its other-endtogisaid feeding mechanism, said lastmentionedpivota1 connection being arranged to;.extendco-,axially withthe pivot of-said arm inycertain-positions of said arm with respect to V gsaidmember and While in said'positions; render- :{ing'saidfeeding mechanism inoperative, r

zaln a' slicing machine having a work Sup 7 port and'fa"slicingfknife mounted to reciprocate past said'work support,'a feeding mechanismfor said Worksupport, a guide having a member slide aely mounted' thereon, latch means reieasafcly holding said memberto said guideya pivotally mounted arm. upon which said knife is mounted,

.means connecting said member, arm, and-feed ing mechanism to actuate said feeding mechanismwhensaid arm is moving and said member is held relatively stationary, abutmentimembersf mounted on said arm one of which is adapted: to release said latch when said arm is moving-inone direction and the otherof which is adapted? to move said member on said guide when said arm is moving in the opposite direction, said cone,

necting means comprising linkageflmountedto;

move with said arm and connected with said-l member anda link pivotally connected at oneend:

to said linkage and connected atjitsl otherJend'.

to said feeding mechanism, said pivot. being arrangedto extend co-axially' with thepivot of saidarm when said member is moved by said abutment members on said arm. l V

30. Ina slicinganachine having a work sup-- po'rtjand apivotedarmlcarrying a, slicing knife eccentric of the pivot of said, arm, said armbeing I mounted to swing said-knife to ,andfro-past, said work support, a guide barhaving a member slid-f ably mountedthereon; a feeding mechanismcoms screw, abell crank pivotallymounted on said screw, a pawl mounted on one'arm ofv saidbell crank to engage said ratchet, linkage mounted to move-with said first mentioned arm andconnected with jsaid member, saidlinkage being piv-- ote'd' to a lever, forming aconnectinggmeans to prising a feeding screw, a ratchettorotate said said :otherbell crank arm, said first mentioned arm havingabutmentsto reciprocate said mem her on said guideduringapart ofeach moveg ment of said arm and said member havingmeans to, hold it stationary on; s' aid-guide, du in 313118 remainder of each movement of said arm.

, 3 1. In" a, slicing. machine having a;work= sup- I port and a pivoted arm carrying. a'slicingknife eccentric of the pivot ofsaid arm, said arm be,-

ing mounted to swing said knife to and fro past said work support, a jguide'bar having a member;

slidablygmounted thereon, a feeding. mechanism.

comprising a feeding'screw, a ratchet to rotate said screw, a bell crankpivotally mounted .on said screw,- a pawl mountedon one arm of said bell crank "to engage said ratchet, linkage mounted to i move with said first mentioned arm and con-3 nected with said member, said linkage beingv piv; Oted to a lever forming aconnecting means to said other-bell crank arm, said first mentioned I arm having abutments to reciprocate said mem ber, on said guide duringa part of eachmovement of said arm, said member having means to hold itstationary on said guide during the remainder of each movement of said farm and said linkage and lever beingproportioned to posi.- tion the pivot of said lever'co axial' tothepivot of said :armwhile saidmember is being-moved bysaidarm.-

, =3 2. In a slicingjmachine having :a work sup; port and a pivoted arm carrying a slicing knife eccentric of-the pivot of said arm, .said arm being 'mounted to swing said knife to'and fro past said work suppor t,a guide having amember slidable thereon,r releasab le means normally holding said memberfixed on said guide,afeeding mechanism, a ,bell crank lever mounted to swing with. said armand pivotedeccentrically of the pivot of said arm, a link connecting one arm of said bell crank with said member and a link pivotally connected to the other arm of said bell crank and to said 1 feeding mechanism; and means co-operating between said member and arm to reciprocate said member on said guide during a portion of each 'to and fro movement of said arm. a

33. The combination set forth in claim 32 wherein said bell crank lever and links are proportioned to position the pivotal connection be:

tween said second-mentioned link and" said support mounted for manually controlled recip-- rocating movement relatively to said support, said work support and knife support being free to move over any portion of a predetermined path of relative travel to efiect different amounts of relative movement between said knife and work support when manually moved, a work feeding mechanism on said work support positively operated by actuating mechanism connected to said knife support and work support and operable by said knife support and work support through said' f mechanism as the latter two elements move rela-r tive to each other in oposite directions, said actu-' ating mechanism including means automatically I operable to initiate and stop the movement ofthe",

feeding mechanism at spaced points in the path of relative travel of said supports, "the distance.

between said points being always the same for" successive relative movements fora given amount of feeding movementof saidfeeding mechanism and irrespective of the point in said path at which said relative movement is begun, and said actuat ing mechanism also including means for effecting complete feeding of said feeding mechanism while said relative movement between said-points takes place regardless of the point in saidpath where the, relativemovement is begun so long as said supports move relative to each other a total distance equal to the distanceibetween said first two'mentioned points". v a i ADRIANUS'VAN DUYNQ.

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