US2540762A

US2540762A - Cardboard bottom feed for food wrapping machines

Info

Publication number: US2540762A
Application number: US729183A
Authority: US
Inventors: John W Smith
Original assignee: Battle Creek Bread Wrapping Machine Co
Current assignee: Battle Creek Bread Wrapping Machine Co
Priority date: 1947-02-17
Filing date: 1947-02-17
Publication date: 1951-02-06
Anticipated expiration: 1968-02-06

Description

Feb. 6, 1951 Filed Feb. 17,

J. w. SMITH 2,540,762 CARDBOARD BOTTOM FEED FOR FOOD WRAPPING MACHINES 1947 4 Sheets-Sheet 1 INVENTOR.

Jam? 6/77/76 Yam 6 J. W. SMITH CARDBOARD BOTTOM FEED FOR FOOD WRAPPING MACHINE Feb. 6, 1951 4 SheetsSheet 2 Filed Feb. 17, 1947 T W m r W. Q4 m W@ B 2,540,762 CARDBOARD BOTTOM FEED FOR FOOD WRAPPING MACHINES T I .lNl ENIOR. 0/0/7/7 /4. J/fW/V? 1% O {my 4 Sheets$heet 5 J. W. SMITH Feb. 6, 1951 Filed Feb. 17, 1947 Feb. 6, 1951 J. w. SMITH 2,540,762

CARDBOARD BOTTOM FEED FOR FOOD WRAPPING MACHINES Filed Feb. 17, 1947 4 Sheets-Sheet 4 Patented Feb. 6, 1951 ;CARDBQARDBOTTOMxFEEDJFOR QQD Battle Creekx Bread assignqr; to

e1 l hi s ijnvention rielates to improvements in a .oa dbqai d bottom ieed for f ood wrapping mawh nes,

" he princ igal objects of this invention are:

,d veringrcardboard'b'ottompanels to the; load- 3 g conveyoroffa' food wrapping machine in timed relationshiiawiththe pockets of i l the con- .retzo "Second, ;to -providel-meehanism ier .adelivering cardboard -bottom -pa-nels to: the conveyor of M a fliood wrapping machine, -=said mechanism pbging iadliustable j lalteralhmalongswithxthetlaterallynad- "jiistable-mechanism efithelconveyor to. accQml nodat'e' bottom panelsrof ydiiierenti lengths.

' gThird, to -=-pnovide tmeans for adva nci ng the Howermost ot e stack .ofrcardboard ibottom -p nels successively through ,a-rdatingsmfiqhflllfim o the. m k s ofi theiconveyon oft .aaigodrwrapnine Amaels.

ts agd adyantages p rtaining to the en "es o th invent on wi b vi ma -o 'th i e 1 ii ll I Fig; 3 is a fragmentary transverse vertical cross lse ional view along the';line 3-3' in Fig. L 2.

the machine adjusted" to" accommodate which areiolded into trance n elongated bottom panels gu -shape by the machine.

dildstrated in the drawings, mysa machine j cqnsists; of a bottom feed section generally I indiweyor seotion-generally-indicated at 2. The loading" conveyor-section: includes-side zframe members' a, the-'endslohwhich; aresjournaled tqsupw I rt; amadiusting-.;shaftz 4. flfha shaft 4 is @1 t, to provide card feeding mechanism -for d awiee e ,wh g.th r ar f hee of may bottompanel ,is a plan viewsi-milar to Fig. 1 butillus 2 rounderd-nby a slee e 5,511 which are mopnteda ,{lnputer pair of sprockets L0 arel keyed tothe shafts support outer chains l I. The sprock- Lets n nd, sh ft iema j ngim.t r ve wi h H40 fFjig 2 is alfragmentary vertical-cross sectional the sleeve when the outer sprockets [0 are qlamped axially a ainst the end of he sleeve'by nut andl er-"I Z thr aded j n rinsi -e :j1 ii e; .e w sh "m s ofj which the shaft may be rotated-"independently of the sleeve whenth c1a'mp ng 1evi' g2 is loosening to vary therelativealignlarfdisplacement of theshaft and'sl'eevej -The' outer chains ID' are provided'with forwardlylopening angleshapedmembers M-lwhichlformtherear edges of "a" series of fiights "of loading pockets and' the intermediate chains '9 are provided with a correspondingnumb'er of rearwardly opening angleshaped- 'cross member's iii-which form :ltheiorward edges of the loading" pockets. Byadvancfing the shaft- 4 and outer chains I lrelative t0 the sleeve and the intermediatejchainsi 9,;the rear cross members I4 may be movedtoward; the front cross members; 15 toiform-ina'rrower pockets on'ithe loadingconveyor.

Thelinner chains, 1, car yl serie a of p te fingers is which form the-ends of the loading pockets and the sprockets: 6 on which; the chains 'l arercarried are provided with;annular collars I'I- (see Fig; 2) ;vvhich are engaged by the bifurcated ends i8 of lateral adjusting plates [9. 1The adjustingmiates l9 are carried on brackets 20 (see Fig. '1), the forward ends ofwhich carry side ine mbers 3 and oppositely threaded asat 24 011 each; end;s0 that as the screwis rotated by ,lmean 9 h n Wh outwardly ,of the frame carrying the ,b rac kets 2 0, ;p1 ates "I 9 and sprockets 6 :Wi-th; them: torv latierallyl adjusting the inner n v 50: elated at l:-conneoted-to the endof aloading: con- -lflig, 1),so that ithe tab le chains 1: and the 7 pocket v end members i 6. The blocks 2 I also suppqrt side table panels 26 and are {connected thereto as by the screws 21 (see eraily along with th ends of the loading pock:

ets. A reenter, chain L281s rotated aceriiter nel rqediu el 1 n extending hubs 4| ing lateral adjusting screw from each other by I chains 43.

simultaneously turn a similar adjusting screw veyor.

The mechanism thus far described is of more or less standard construction in food wrapping machines and forms no part of this invention except as it relates to and cooperates with the bottom panel feeding mechanism to be described presently.

Theside frame members 30 of the bottom panel feed mechanism are connected to the ends of the side frame members 3 of the conveyor and rotatably support a transversely extending lower feed shaft 3| (see Fig. 3). The lower feed shaft is driven from the conveyor chain drive shaft 4 by the chain 32 and sprocket 33, the end of the driving shaft 4 being provided with a suitable sprocket for that purpose. A clutch mechanism generally indicated at 34 in Fig. l is provided for disengaging the bottom panel feed mechanism from the convey shaft 4. The feed shaft 3! is provided with a pair of bottom feed rolls 35 which are cooperative with a pair of upper feed rolls 3B slidably mounted on an upper feed shaft 31 extending between suitable bearing brackets 38 on the side frame members 30 (see Fig. 3). The uppe feed shaft 3'! and feed rollers 36 are provided with a splined connection as at 39 so that the rollers 36 will rotate with the countershaft which is in turn driven from the lower shaft 3! by means of the mating gears 45 on the ends of the two shafts. V

The feed rollers 36 are provided with inwardly (see Fig. 3) on which are mounted sprockets 42 for rotatably supporting a pair of bottom panel feed chains 43. The chains 43 extend forwardly to over the rear or starting end of the loading conveyor.

The side frame members 38 of the bottom feed mechanism are further connected by a transversely extending support plate 44 which is positionedjust forwardly of the lower feed shaft 3! and forms a sliding support for a pair of oppositely formed guide brackets 45. The brackets 45 are provided with upwardly and inwardly turned arm portions 45. The bases of the brackets are slidably supported with the cross plate 44 and extend therebelow to engage a transversely extend- 41 as is most clearly illustrated in Figs. 1 and 2. The guide brackets 45 are thus laterally adjustable toward and away engagement of thei lower portions with the oppositely formed threads on the screw 41. The screw 41 is journaled in the side frame members 30 and provided on its far end with a sprocket 43. The sprocket 48 is engaged with a chain 49 exte ding forwardly to a sprocket 50 secured to the far end of the adjusting screw 22 in the conveyor section of the wrap-- ping machine. It will thus be seen that lateral adjustment of the loading conveyor chains and loading table panels by rotation of the screw 22 will concurrently rotate the adjusting screw 41 and correspondingly adjust the spacing between the guide brackets 45.

The inner ends of the arms 46 on the brackets 45 are provided with forwardly extending vertical plates which rotatably support idler sprockets 52 carrying the forward ends of the feed The arms 46 are further provided the rear sides thereof which 54' formed on the outer ends with fingers 53 on engage the collars of the upper feed rollers 36 as is most clearly illustrated in Figs. 1 and 3. Thus lateral adjustplate 13 positioned below ment of the guide brackets 45 will also laterally adjust the rear sprockets 42 and idler sprockets 52 carrying the feed chains 43. The forwardly extending plates 5! on the guide brackets '45 :are provided with end depressor plates 55 which are arranged to force down the forward ends 0f bottom panels into the pockets of theloading conveyor as the panels are carried forwardly by the card advancing flights or fingers 56 carried at intervals along the feed chains 43. Horizontal support plates '5'! also secured to the guide brackets just forwardly of the upper edge of the lower feed roll 35 are arranged to support the bottom panels as they are fed out of the feed rolls. A center support rib id and extends between the feed rolls to further support the bottom panels.

The side frame members a pair of upstanding brackets or arms 59 between which is secured a vertical cross plate 60.. A transverse adjusting screw 6| has its endsjournaled inthe brackets 59 forwardly of the cross plate. The plate 50 forms a guide and support for a pair of end brackets 62 which are provided with vertical holding straps53 on the forward side of the-guide plate 60. The'holding straps 63 define threaded apertures engaging the adjusting screw 6| so that the brackets are laterally adjustable on the supporting plate by turning the hand wheel 64 on the end of the adjusting screw. The rear arms of the brackets 62 are secured to the vertically extending angle-shaped front magazine members 65' and define rearwardly extending opposed grooves 66 within which the plates 61 are slidably mounted. The plates 51 are secured to the vertically extending angle-shaped members 68 forming the rear corners of the magazine and are cooperative with the forward magazine members 65 to receive. a stack of blank bottom panel cards 69. The rearwardly extending arms of the brackets 62 are slotted as at 10 to pass the inner ends of adjusting screws II by means of which-the guide plates 6'! are clamped to the brackets so that the rear membersof the magazine may be adjusted with respect to the front members 65 to accommodate bottom panels of varying width. r

The side frame members 30 of the feeding mechanism are provided with brackets 12"(see Fig. 2) which support a transversely extending roll 35. ber 14 of the frame support longitudinally extending parallel guide bars 15 within which a feed block 1-8 is. slidably positioned... The feed block 16 is notched as at ll. along its forward edge to engage and strip off the first panel '59 on the bottom of the stack of panels in the magazine. The feed block is provided with a depending car 18 pivotally connected to a link 79 and the link'lg is connected to one arm of a crank 80 carried on a rockshaft ill. The rockshaft 8i extends transversely of and is journaled in the side frame members 30 of the feeding mechanism and its forward end as viewed in the drawings is provided with a crank arm 82. The armj32 is connected by a connecting rod 83 to a crank arm -84 on the forward end of the feed roll drive shaft 3|. It will thus be seen that with each revolution of the feed roll shaft 3| the

cranks

80, 32 and 84 will be actuated to reciprocate the feed block 15 between a retracted position and mad- 58 is secured to the cross plate so are provided with the forward edge of the 4 magazine and just to the rear of the lower feed The plate i3 and the rea cross mem- .bent'upwardly as at" fold the ends of the position and the fold plates 99'have overhanging be 'widenedalong with'the pockets of veyor section by rotating the hand wheel 25 adjusting screws! and "as was previously detanced feeding' position anclback to-the starting position-i Attention is called to the factthat the feed rolls 35 and 35'are cut away or relieved as at 85 over a portion of their, surface so that as the feed block 'lfi'is advanced to feed'a'bottompanel 69 between the feed rollsthe panel will not'engage th'efeed rollsbut. will advance freelytherebetween until theraised'portions of the feed rolls are ro- 'tatedinto opposedgripping relation to pick up the panel'and advance it along the support bars @511. underneath the. bottom. reach of the feed chain .43. After any one. bottom panel 69' has 'beeniadvanced. along the support bars .5? by the feed. rolls, its rear edge will be engaged" and pushedjforward by the pins 56Jonthe feed chain inthe proper timed relationship with the pockets of the conveyor section of the machine.

The upper cross plate Ellis provided in its center with a forwardly extending bracket 85 pivotallysupportinga spring. pressed backing arm 81. The arm 8Tisprovided with a, depending finger 88 which extends downwardly against the top of the advancing. bottom panels andserves as a backing fortype 89 set in the face of a type roll 90. The type. roll 90 is mounted on a shaft 9| driven in timed relationship with the feed shaft 3-! by means ofa chain tll'driven from a sprocket 93 on the end. oflthe feed roll shaft. Theinner end of the printing roll shaft 92 is supported in a bracket B l-secured to the middle of the guide plate 44.

I An. inking roll 95' is rotatably supported in one end; of a pivotal mounted bracket 96 underneath the type roll 90 and arranged tov ink the type 89 with each. revolution of the type roll. It will thus be-Vseen that the type roll is driven in. timed relationship with the feed shaft and feed chain so ,thatthe type 89 will register with the same space on each succeeding bottom panel 69 as the panels are advanced over the type roll.

Fig. 4 illustrates the same structure. as Figs. 1 2l-and. 3 but shows the magazinebrackets 62dsposed in widely spaced relationship to accommodatebottom panels 69A longer than the bottom panels 69 shown in the other figures. The bottom panels 69A are notched as at 91 near their ends and arranged to have. the ends folded upwardly by the fold plates 98 and crimned over by the fold plates 99 as illustrated at 100 in Fig. 4 to'form U-shaped bottom panels in the pockets of the conveyor section of the wrapping machine.

( .-.The fold plates 91% and 99 are secured to thehorizontal support plates 57 secured tothe-guide brackets 45 below theinwardly extending arms 45 so'that the bottom panels (59A are fed by the feed rolls between'the arms 55 and the horizontal plates. The fold plates 98 have theirouter edges I 0! to gradually raise and bottom panels to avertical flanges lllZwhich bend over the ends of the panels to form a permanent fold between the notches 91. Fig. 4' shows'the guide brackets 45 are in closely spaced relationship as in Fig. 1

since the bottom panelsSElA after folding are approximately the same length as the panels shown in Fig. 1. However, it will be appreciated that if "it were not desired-to foldthe panels 69A, spacing of, the guide brackets 45and feed chains 43 could the conand scribed, It is thus apparentthat my machine is readilyad-justableto accommodate bottom panels of varying width and length eitheras flat panels 9'! 'sothata'datepor other codedlndiciamay be applied' to each panel.

The advancingblock 16 which feeds the bottom panel from: the stackin the magazine-travelsthe same distance regardless of the length or width of the panels beingfed into the machine, the between the succeeding panels being obtained. portions of the feed rolls with the fingers 5'! on the feed chain. Thus a widepanelwi-ll'be engaged and movedljsooner bythe feed block than will a narrow paneli However, each; size of panel will be initially moved between therelievedipon tion. of'the fe'edrolls-b'y the. feed. blockwithoiit engagement with or interference from the feed rolls or the. feedlchain. The raised portions of the feed rolls will then come into opposed. grip; ping relation with the bottom. panel in. approxi matelythesame relationship with the rear edge of the bottom panel .regardless of its width, and

I have described aihighly practical commercial embodiment of. my bottom panel feeding mechanismv asapplied to theloading conveyoro-f an adjustablewrapping machine. I havenot attempted to show other modifications or. applications of. the. feeding mechanism as: it isfelt that the mechanism maybe applied or modified asdesired by persons-skilled in theart without further disclosure.

Having thus described my invention; whatI claim as new and desire tosecure by Letters Patent, is:

1. Bottom panel feed mechanism for the load;- ing conveyor of a food wrapping machine com,- prising side. frame members arranged to be connected to the frame of the conveyor, a shaft journaled in said sideirame members and hav ing feed rollers thereon; said rollers being reduced in thickness alongpart of their circumference, a chain arranged to drive saidv shaft from the shaft supporting said loading conveyor, a countershaft gear driven from said first shaft and having other feed rollers thereon cooperativewith said first feed rollers, said other feed rollers being reduced in thickness for part of their circumferenceand angularly disposed with respect to said first feed rollers wherebysaid reduced portions are opposed, feed sprockets secured, to said other feed rollers and having a splined connection to saidcountershaft for rotation theree with, a cross plate supported between said frame members, guide brackets slidable on said cross plate, said brackets having upwardlyand inwardly extending arms, fingers on said arms engageable with grooves in said feed sprockets for moving said sprockets along said countershaft with said' guide brackets, forwardly extending support members on the inner ends of said arms, idler sprockets carried on the ends of said forwardly extending support members and positioned over the end of said loading conveyor, feed chains looped around said feed sprockets. and idler sprockets," bottom panel advancing, fingers ar y' a d f d hai s wher by heing rs by coordination of the relieved onthe lower reaches of said chains pass between said feed rollers, an adjusting screw journaled in said frame members and extending underneath said cross plate, said adjusting screw having oppositely pitched threads on the ends thereof and engaging said guide brackets, a chain connected between said adjusting screw and the lateral adjusting mechanism of said loading conveyor whereby the lateral spacing of said loading conveyor, guide brackets, feed chains and other feed rollers are concurrently adjustable, a vertically disposed magazine positioned adjacent to said feed rolls on the opposite side thereof from said feed chain, a longitudinally reciprocable feed block arranged to strip off the lowest panel of a stack of bottom panels positioned in said magazine and feed said panel between said feed rollers, a crank having one arm arranged to reciprocate said feed block, another crank connected to the end of said first shaft, and a connecting rod connected between said cranks for driving said feed block and feed roller in timed relationship whereby said bottom panel is fed between said feed rollers while the reduced Portions thereof are opposed.

2. Bottom panel feed mechanism for the loading conveyor of a food wrapping machine comprising side frame members arranged to be connected to the frame of the conveyor, a drive shaft journaled in said side frame members and having feed rollers thereon, said rollers being reduced in thickness along part of their circumference, a countershaft gear driven from said drive shaft and having other feed rollers thereon cooperative with said first feed rollers, said other 3,

feed rollers being reduced in thickness for part of their circumference and angularly disposed with respect to said first feed rollers whereby said reduced portions are opposed, feed sprockets secured to said other splined connection to said countershaft for rotation therewith, a cross plate supported between said frame members, guide brackets slidable on said cross plate, said brackets having upwardly and inwardly extending arms, fingers on said arms engageable with grooves in said feed sprockets for moving said sprockets along said countershaft with said guide brackets, idler sprockets carried on the ends of said arms and positioned forwardly of said feed sprockets, feed chains looped around said feed sprockets and "idler sprockets, bottom panel advancing fingers carried by said feed chains whereby the fingers on the lower "reaches of said chains pass between said feed rollers, an adjusting screw journaled in 5 said frame members, said adjusting screw having oppositely pitched threads on the ends thereof and engaging said guide brackets, achain connected between said adjusting screw and the lateral adjusting mechanism of said loading conveyor whereby the lateral spacing of said loading conveyor, guide brackets, feed chains and other 'feed rollers are concurrently adjustable, avertically disposed magazine positioned adjacent to said feed rollers on the opposite side thereof from said feed chain, a longitudinally reciprocable feed block arranged to strip off the lowest panel of a stack of bottom panels positioned in said magazine and feed said panel between said feed rollers, a crank having one arm arranged to reciprocate said feed block, another crank connected to the end ofisaid first shaft, and a connecting rod connected between said cranks for driving said feed block and feed roller in timed relationship whereby said bottom panel is fed between saidfeed feed rollers and having a rollers while the reduced portions thereof are opposed.

3. Bottom panel feed mechanism for the loading conveyor of a food wrapping machine comprising side frame members arranged to be connected to the frame of the conveyor, a shaft journaled in said side frame membersand having feed rollers thereon, said rollers being reduced in thickness along part of their circumference, a second shaft gear driven from said drive shaft and having other feed rollers thereon cooperative with said first feed rollers, said other feed rollers being reduced in thickness for part of theirlcircumference and angularly disposed with respect to said first feed rollers whereby said reduced portions are opposed, feed sprockets secured to said other feed rollers and having a splined connection to said second shaft for rotation therewith, a cross plate supported between said frame members, guide brackets slidable on said cross plate, said brackets having upwardly, and inward- 13; extending arms, rearwardly extending fingers on said arms having lateral driving connections with said feed sprocketsfor moving said sprockets along said second shaft with said guide brackets, idler sprockets carried on the ends of said arms and positioned forwardly of said feed sprockets,

- feed chains looped around said feed sprockets ably mounted on said cross plate, said screw able with said and idler sprockets, bottom panel advancing fingers carried by said feed'chains wherebythe fingers on the lower reaches of said chains pass between said feed rollers, an adjusting screw journaled in said frame members, said adjusting screw having oppositely pitched threads on the ends thereof and engaging said guide brackets, a vertically disposed magazine positioned adjacent to said feed rollers on the opposite side thereof from said feed chain, a longitudinally reciprocable feed block arranged to strip Ofi the lowest panel of a stack of bottom panels positioned in said magazine and feed said panel between said feed rollers, a crank having one arm arranged to reciprocate said feed block, another crank connected to the end of said first shaft, and a connecting rod connected between said cranks for driving said feed block and feed roller in timed relationshipwhereby said bottom panel is fed between said feed rollers while the reduced portions thereof are opposed.

4. Bottom panel feed mechanism for the conveyor of a wrapping machine, said conveyor having laterally and longitudinally adjustable pockets thereon, comprising frame members arranged to f be connected to the frame of said conveyor, a 1

pair of shafts journaled in said frame members and having cooperative feed rolls thereon, said feed rolls having opposed portions of reduced diameter, said shafts-bein gear connected to rotate at equal speeds, a chain for driving one of said shafts from the end shaft of said conveyor, feed sprockets mounted on the upper of said shafts and laterally adjustable therealong, a cross plate supported between said frame members and forwardly of said shafts, guide brackets slidcross plate and having lateral shifting engagement with said feed sprockets,a screw member extending transversely of said frame members and underneath said member having oppositely threads on each end thereof and engageguide brackets to effect lateral adjustment thereof, a driving member for driving said screw member from the lateral adjusting mechanism of said conveyor, forwardly extending arms on said guide brackets having idler sprockets pitch-ed v rearwardly extending awao rca mountedzomtheafronte;endssthereofz and over: the endi'orsaidv: conveyor; continuous: feed; chains mounted; orr. said feed; sprockets. and-v idler sprockets;flngersionvsaidifeed;chainsgarranged: to advances; bottom; panels:. from; between. said. feed rolls: t'othevpockets: offsai'd'. conveyor, depressing plateau. on...the. ends. of; said arms. arranged to guide said-. bottom panels into; said: pockets, fold.- ing-pl'ates carried onsaidtguidetbrackets arranged to' fold up the ends of said'bottom" panels; asecond cross plateicarried by said side frame-memhers and above said. shafts, rearwardly'extending brackets slidably mounted on. said: second. cross plate; verticallyextending magazine formin members carried by said last brackets on the op posite side thereoffrom-said-feed rolls, a second screwmember carried .bysaid'sideframemembers and having oppositely pitched threads on. the ends thereof. engageable with said last brackets for lateral adjustment" thereof, anda longitudinally ireciprocable strippingr'block arranged. to feed the lowestof. a series. of: bottom panels in said magazine members to .betlweenxsaid feed rolls, sai'd' feechblockibeing, driven from one. of? said shaftsiirr. timed. relationship. thereto.

BottompaneLfeedmechanism for -the: conveyor of. a-Lwrapping machine;-.saidbconveyor;havingi; laterally. and. longitudinally adjustable pockets thereon, comprising frame members arrangedtobe connected to the frame of saidconveyor, a: pair ofshattsjournaled in said frame members and having" cooperative feed. rolls thereon, said feed nIOHSrhBNing: opposed portions of reduced diameter, said shafts being gear connecteditorotate at equal speeds, a chain fordrivmgone' of said-"shafts-from" said conveyor; feed sprockets mounted and laterally adjustable therealong, a cross plate supported between said frame members and forwardly of said shafts, guide brackets slidably mounted on said cross plate and having lateral shifting engagement with said feed sprockets, a screw member extending transversely of said frame members, said screw member having oppositely pitched threads on each end thereof and engageable with said guide brackets to effect lateral adjustment thereof, a driving member for driving said screw member from the later adjusting mechanism of said conveyor, forwardly extending arms on said guide brackets having idler sprockets mounted on the ends thereof, continuous feed chains mounted on said feed sprockets and idler sprockets, fingers on said feed chains arranged to advance bottom panels from between said feed rolls to the pockets of said conveyor, folding plates carried on said guide brackets arranged to fold up the ends of said bottom panels, a second cross plate carried by said side frame members and above said shafts, brackets slidably mounted on said second cross plate, vertically extending magazine forming members carried by said last brackets on the opposite side thereof from said feed rolls, said magazine forming members being relatively adjustable longitudinally of said mechanism to accommodate panels of different width, a second screw member carried by said side frame members and having oppositely pitched threads on the ends thereof engageable with said rearwardly extending brackets for lateral adjustment thereof, and a longitudinally reciprocable stripping block arranged to feed the lowest of a series of bottom panels in said magazine members to between said feed rolls, said feed block being on the upper of said shafts tion of its periphery cut away from to over the end of r slideable along the other drivenfrom-one ofxsaid shaftssin timed :relationtship thereto;

6. Bottom panel feed mechanism forcattache ment. to the frame. of a. wrappingxmachinehaving a wrapping: conveyor comprising. side. frame members adapted to be attached to; said frame, cross shafts jeurnaled. in said frame members andgarrangedxto be driven at'equal. speeds from said. conveyor, an elongated. roll'on one of said shaftsaapair. of" relatively narrow rolls rotatable withandtaslideable along the otheruofsaidshafts, said narrow rolls being: cooperative with said elongated roll. to, feed" a: bottom, panelil therebetweemsaidznarrow. rolls; havingia portiorrof their periphery cutaway and nonecooperative with saidl elongatedrrolly. a supporttextending between saidTside framemembers, a pair ofsbracketsslideably mounted on. saidisupportvan'd having up wardlyi' andi inwardlyextending arms secured thereto, ant. adjusting: shaft: extending. between said! sideframe. members and. having. oppositely pitchedi. threads. thereon engageable. with. said brackets for lateral adjustment thereof, means on. said arms' engageable. with said narrow rolls for laterally adjusting said rolls witlinsaid arms and brackets, support members carried. by said arms:andextendingfbrwardly therefrom to over theend ofsaid' conveyor, driving-sprockets so cured: to said narrow rolls; idler sprockets mounted on the ends-of I said support members, feed chains looped about said sprockets and havingbottom panel advancingflights-thereon, and bottom panel guiding and folding: platessecured toasaid support members;

'11 Bottom panelfeed mechanism-for attachment -to i theframeof a wrapping machine hayin'g wrapping conveyor comprising; side frame members adapted to be attached to said frame, cross shafts journaled in said side frame members and arranged to be driven at equal speeds from said conveyor, an elongated roll on one of said shafts, a pair of relatively narrow rolls rotatable with and slideable along the other of said shafts, said narrow rolls being cooperative with said elongated roll to feed a bottom panel therebetween, said elongated roll having a porand non-cooperative with said narrow rolls, a support extending between said side frame members, a pair of brackets slideably mounted on said support and having upwardly and inwardly extending arms secured thereto, an adjusting shaft extending between said side frame members and having oppositely pitched threads thereon engageable with said brackets for lateral adjustment thereof, means on said arms engageable with said narrow rolls for laterally adjusting said rolls with said arms and brackets, support members car ried by said arms and extending forwardly theresaid conveyor, driving sprockets secured to said narrow rolls, idler sprockets mounted on the ends of said support members, feed chains looped about said sprockets and having bottom panel advancing flights thereon, and bottom panel guiding and folding plates secured to said support members.

8. Bottom panel feed mechanism for attachment to the frame of a Wrapping machine having a wrapping conveyor comprising, side frame members adapted to be attached to said frame, cross shafts journaled in said side frame members and arranged to be driven from said conveyor, an elongated roll on one of said shafts, a pair of relatively narrow rolls rotatable with and of said shafts, said nar I between said side frame row rolls being cooperative with said elongated roll to feed bottom panels therebetween, said rolls having periphery cut away and non-cooperative to feed said panels, a support extending members, a pair of brackets slideably mounted on said support and having upwardly and inwardly extending arms secured thereto, an adjusting shaft extending between said side frame members and having oppositely pitched threads thereon engageable with said brackets for lateral adjustment thereof, means on said arms engageable with said narrow rolls for laterally adjusting said rolls with said arms and brackets, support members carried by said arms and extending forwardly therefrom to over the end of said conveyor, driving sprockets secured to said narrow rolls, idler sprockets mounted on the ends of said support members, feed chains looped about said sprockets and having bottom panel advancing flights thereon, and means including a magazine and slide member for successively feeding individual bottom panels to said rolls.

9., Bottom panel feed mechanism for attachment to the frame of a wrapping machine having a wrapping conveyor comprising, side frame members adapted to be attached to said frame, cross shafts journaled in said side frame members and arranged to be driven from said conveyor, an elongated roll on one of said shafts, a pair of relatively narrow rolls rotatable with and slideable along the other of said shafts, said narrow rolls being cooperative with said elongated roll to feed bottom panels therebetween, a support extending between said side frame members, a pair of brackets slideably mounted on said support and having upwardly extending arms secured 12 thereto, an adjusting shaft extending between said side frame members and having oppositely pitched threads thereon engageable with said brackets for lateral adjustment thereof, means on said arms engageable with said narrow rolls for laterally adjusting said rolls with said arms and brackets, support members carried by said arms and extending forwardly therefrom to over the end of said conveyor, driving sprockets secured to said narrow rolls, idler sprockets mounted on the ends of said support members, and feed chains looped about said sprockets and having bottom panel advancing flights thereon.

, JOHN W. SMITH.

REFERENCES CITED UNITED STATES PATENTS Number Name 7 Date 919,810 Barry Apr; 27, 1909 1,641,828 Sandin Sept. 6, 1927 1,730,477 Post Oct. 8, 1929 2,079,668 Swift May 11, 1937 2,084,319 Charnock June 22, 1937 2,134,057 Potdevin Oct; 25, 1938 2,239,945 Tuthill et a1 Apr. 29, 1941 2,291,754 Piazze Aug. 4, 1942 2,304,273 Nelson Dec. 8, 1942 2,320,362 Jensen June 1, 1943 2,335,750 Fincke et a1; Nov. 30, 1943 FOREIGN PATENTS Number Country Date 6,257 Great Britain Mar. 13, 1912' 1912