US1046291A - Can-head lining and rolling machine. - Google Patents

Description

H. L. GUBNTHER.

CAN HEAD LINING AND ROLLING MACHINE.

APPLICATION FILED JUNE 16, 1910.

Patgnted Dec. 3, 1912.

l 12 snnsTs-snnn'r 1,

INVENTOR. fill/yldumfizer AYTOHNEYS H. L. GUBNTHER.

:GAN READ LINING AND ROLLING MACHINE.

APPLIQATION FILED JUNE 16, 1910.

Patented Dec. 3, 1912.

12 SHEETS-SHEET 2.

mmfssss: m vavrm:

ATTORNEYS new: mus. mm. tmm IAMIIIITDI. D t

H. L. GUENTHER.

CAN HEAD LINING AND ROLLING MACHINE.

Patented Dec. 3, 1912.

12 SHEETS-SHEET a.

IN VEN TOR JzzzyL'umf/zer WITNESSES.-

ATTORNEYS H. L. GUENTHER.

CAN HEAD LINING AND ROLLING MACHINE.

APPLIUATION FILED JUNE 16, 1910.

1 ,046 ,291 Patented Dec. 3, 1912.

12 SHEETS-SHEET 4.

WITNESSES: E 2

. L t t ATTORNEYS Mums Pam. Inc. mm. IIAsnmcwu. n. (L

H. L. GUBNTHER.

CAN HEAD LINING ANB ROLLING MACHINE.

APPLICATION FILED JUNE 16, 1910. 1,04 ,291 Patented Dec.3,1912.

12 SHBETS-SHEB1Y 5 ATTORNEYS WITNESSES:

/u/a M/J/w H. L. GUENTHBR.

cm HEAD LINING AND ROLLING MACHINE.

APPLICATION FILED JUNE 16, 1910.

Patented Dec.3,1912.

12 SHEETS-SHEET 6.

WITNESSES: INVENTOR Mm w .I I ATTORNEYS H. L. GUENTHBR.

cm HEAD LIN I NG AND ROLLING MACHINE. APPLICATION FILED JUN}; 16, 1910.

1,046,291. Patented Dec.3,1912.

12 SHEETS-SHEET 7 WITNESSES: INVENTOR ATTORNEYS H.L.GUENTHBRL CAN HEAD LINI NG AND ROLLING MACHINE.

I V APPLIOATION FILED JUNE 16, 1910. I 1,046,291 Patented Dec.3,1912

12 SEEETSSHEET 8.

ATTORNEYS Itouxs runs. In .uvn. vusmnamn. D. c.

H- L.. GUENTHBR. CAN HEAD LINING AND ROLLING MACHINE,

APPLIOATIUN IILElj JUNE 16, 1910.

- Patented Dec. 3, 1912.

12 answer-sum a.

' INVENTOR Ie/uyL. Giant/1e? BY v I TTORNEY8 H. L. GU ENTHBR. v GAN HEAD LINING AND ROLLING MACHINE.

. APPLICATION FILED JUNE 16 1910.

v- Patented Dec.3, 1912.

12 SHEETBSHBET 10.

INVENTQI? flezzr Z. Guezzifiar Nouns Inns. INQ. Lmw. WAsmmm. n. v.

UNITED STATES PA TENT oFFioE.

I HENRY LOUIS GUENTHER, OF LOS ANGELES, CALIFORNIA.

Specification of Letters Patent.

' CAN-HEADLINING AND ROLLING MACHINE:

Patented Dec 3, 1912.

Application filed June 16, 1910. Serial No. 567,141.

rolling machine, more especially designed for placing liquid cement or other packing. material onto the flanges of can heads; and to bend over the flange edges, to confine. and hold the packing material in place amid to prevent the can heads from sticking one on v the'other when stacked for shipping or stor-,

mg purposes, the said packing material. after drying forming a lining or a packing,-

and when the can head is finally attached to the can body and the flange is crimped and compressed onto the can body, then a can is producedhaving an air-tight double seam, thus rendering the can exceedingly serviceable for packing various food products therein without danger of leakage.

A further object of the invention is to provide a machine which is completely automatic, requiring but one attendant and capable of treating a large number of can heads in a comparatively short time.

"For the purpose mentioned, the machine in its general construction consists of a continuously revolving platform for, receiving the can heads and'carrying the same to atransferring device which delivers the can heads one after another to an intermittently reciprocating platen, which in turn carries the can head to a rolling device, at which the can head flange is bent up and the required amount of packing material is placed onto the flangeand the latters edge is slightly bent inward, to confine the "packing material, the finished can head then being discharged from the machine and passed onto a convey er, which carries the can heads to a drying' apparatus, to insure theproper drying of the packing material.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in

which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the machine, as arranged for can heads in which a packing material is used, the parts being in position after delivering the packing material to one can head and bending the edge thereof inward, while another can head is in position for transfer from the revolving platform to.

the reciprocating platen; Fig. 2 is a like view'of the same, showing the parts in position at the time the previouslycomplete can head is discharged and another can head receives the packing material andits edge is bent inward; Fig. 3 is an elevation of the machine looking at the same from the righthand side; Fig. 4 is a front'elevation of the same, part of the conveyer for carrying the finished can heads to a drying device being shown in section;'Fig. 5 is a sectional front elevation of the machine on the line 5 5 of Fig.1; Fig. 6 is a similar view of the same on the line 66 of Fig.1;Figv7-is a like view of the same on the line 7-7 of Fig. 1;

Fig. 8 is a cross section of the sameon the line 8-8 of Fig. 1; Fig. 9 is an enlarged transverse section of part of the crimping device and the packing supply,the parts being in position prior to the act of rolling over the edge of the can head flange; Fig. 10 is a similar view of the :same with the parts in position while bending the edgeof the can head flange inward; Fig. 10 is alike view of the same with the parts in position after the edge of the flange has been bent inward; Fig. 11 is an enlarged plan view of part of the revolving platform and the can head retaining means in positionfor holding the foremost can head temporarily in position. part of the plate being broken out; Fig. 12 is a like view of thesameshowmg the parts in position after theforemost can head on the platform is released; Fig.

13 is a sectional front elevationof the same, the section belng on the lme 13-43 of F 1g.

11; Fig. 14 is an enlarged cross section of the packing and fQGClI-IIQ'-lGV1CQ; Fig. 15 13 an enlarged face view of the cam'for mov-.

ing the crimping: roller into and. out of active positien; Fig-16 is an enlarged face view of the cam for raising and lowering the" Jmandrel; Fig. 17 is an enlarged face view of the cam for reciprocating the platen; Fig. 18 is an enlarged face view of the cam for actuating the bolt used in locking the platen iii-either of its two positions'o rest; Fig. 19 is an enlarged. faceview of the cam for actuating the transferring device employed for transferrin or shifting a can head from therevolving p atform into the platen; Fig. 20 is an enlarged sectional side elevation of thecan head prior to bending the flange inward; Fig. 21 is a like view of the same aficrbendin the flange edge inward to confine the patching material and prevent the can heads from sticking one on the other when stacked for storing or shipping purposes; Fig. 22 is asimilar view of a can head, the flange of which is to be doubled up;and Fig. 23 is a like view of the same after .the can head flange is doubled up.

j The can head A (see Figs. 20 and 21), to

be treated by the machine presently to be described in detail, is provided with a rim A, irom which extends outwardlv a flange 5 A having afturned up annular edge A to form with the rim A an annular channel for receiving the fluid cement or other packing. at'erial A, the edge A being slightly bent ward by the machine, to hold the 30, packing material A in place. and to allow 'of stacking the can heads without danger of one sticking to the other. as indicated in Fig. 21. The can head A. shown in Fig. 22

is provided with a rim A having a flange A having a turned-up edge A adapted to be doubled up. as shown in Fig. 23. The machine shown in the drawings is more especially designed for can heads having a packing therein. as illustrated in Figs. 20 40 and 21 and will presently be described for this purpose, and the modification of the machine necessary for doubling up the flange edges A will be disclosed subsequently. The machine is mounted on a suitably constructed main frame B having a table B for the can heads A placed thereon. with the edges. A extending upward. and the said can heads A are fed one by one by an attendant onto a continuously revolvin platform C. having its upper edge flush with the table B. The platform C carries the can heads A successively to a retaining and releasing device D, which engages the foremost can head A and holds the same and consequently the succeeding one temporarily against forward movement. and at the J proper time this device I) releases the foremost-can head to allow the same to be car- 50 ried .the platform G to a transferringor shift-ingdevice E. which moves this can head transversely in a rearward direction and 0th the platform 0 onto a rear table B and into a notch F of a platen F, provided with a slide F (see Fig. 8) intermittently reciprocating in suitable bearings B forming part of the main frame B (see Fig. 8). The platen F moves the can head A over the rear table Bi from the right to the loft (see Fig. 2) and centrally over a mandrel G mounted to turn and to slide up and down and operating in conjunction with a yielding clam ing head H, likewise mounted to slide up anc down and adapted to engage the top of the can head A (see Figs. 9 and 10), to cause the can head A to revolve with the mandrel G. The mandrel G on rising lifts the can head A above the platen F (sec Fig. 10) and at this time the packing ma tcrial is delivered to the can head in a predetermined quantity through a nozzle I of a packing material supply device .l, mounted on the main frame B. A bending roller J now engages the edge A of the can head A and bends the said edge slightly over to confine the packing material, as previously mentioned, the said roller J being ,journaled on the left-hand end of a slide J mounted to reciprocate in a longitudinal direction in suitable bearings B forming part of the main frame B.

'lhc platen F is provided with a longitudinally-extending slot F which connects the notch F with an aperture F, the slot F being somewhat wider than the hub of the mandrel G, so that while the bending operation is carried on the platen F is returned to its normal position (see Fig. 1), to return the aperture F to a ccntral'position relative to the mandrel G, which now lowers the finished can head A back onto the table B and into the said aperture F". so that on the next forward movement. of the platen F to the left. the finished can head is carried by the platen F oil the table B and onto the 1 5 chute B forming part of the main frame B.

The chute B delivers the can head A to an endless belt K (see F igs. & and 6) which carries the can heads to a reciprocating obliquely-disposed shifter and spreader L for shifting the can heads off the belt K and onto an endless conveyer belt K, which carries the can heads A to a drying room or to. an apparatus for drying the packing ma terial.

The several devices are actuated in barmony from a main driving shaft N, extending transversely and journaled in suitable bearings arranged on the main frame B, and on the rear end of the said main driving shaft N are secured fast-and loose pulleys N connected by a belt with other machincry for imparting a continuous rotary motion to the main driving shaft N. On the main driving shaft N is secured a pulley N (see Fig. 7), over which passes a belt N also passing over a pulley l secured on a counter shaft N extending transversely and journaled in suitable bearings arranged on the main frame B. On the counter shaft N i is secured pinion N (see Figs. 3, 5 and 6) 1n mesh with a gear wheel N- secured on the Imam Cam. shaft extelldlng transversely and journaled in Suitable bearings on the .main frame B. On the cam shaft 0 is secured a pulley 0 (see. Figs. 3, 4 and 8) overrwhich passes a beltO also passing over a pulley O secured to a transverse shaft 0, ournaled in suitable bearings on the main frame B. On the shaft 0* is secured a bevel .gear wheel 0 (see "Figs. 5 and 8) in mesh "with. abevel gear wheel 0 attached to the lower end of the shaft C of the platform C,

P so that when the machine is running and the the direction of the arrow (1 main driving shaft N is rotating, then a 1'0- tary motion is transmitted by the devicesjust described to the shafts 1 O, 0* and C, to rotate the platform C continuously in shown inFigs.

1 and 2. The rotary motion given to the platform G carriesthe can heads A place-d thereon by the attendant to. the retaining and releasing device D, which periodically interrupts the travel-of the can heads, and in order to- .fleft-hand margin of the platform C, so that f the can heads A. cannot pass outward'o-ver the'margin-of the platform C, and on the underside ofthe plate P is secured a guiding segment P concentric to the rim P and spa'c'ed from the same a distance correspond- ..,ing approximately to the diameters of the can heads A, so that the can headsane carried along by the platform O with the oppo Site sides of the can heads guided by the-rim and the'segment P to reach close to the upper faces of the can heads A,',to prevent one can head from sliding onto the top of another during their travel to the retaining'and releasing device "D. The segment P is vertically adjustable fto suit can heads A of different height, and

for this purpose the segment P is provided j'vith .upwardly-extending pins P slidingly engaging bearings P formed on the plate P.

the pins P being secured to'the bearings P byisets'crews P after the desired adjustmerit of the segment P is made (see 4.;and'5).

"The retaining and releasing device D is fa i'ra nged as follows special reference being hadto Figs. 1, 2, l. 5, 1]. 1'2 and 13. On the. top" of-the plate P is fulcrumed an arm D.

acted on by'a spring D and provided at its free end with a depending pin D adapted to pass into the path of the foremost can On the under side of the plateP'intei-mediate the rim P and the segment P f-is arranged a segment P adapted head A, so as to hold' the-same temporarily in position at the rear end of the rim? and the segment P of the plate P, as plainly shown in Fig. 11. The arm D is pivotally connected by a link Q with an upright lever Q fulcrume d at Q on the main frame B and pivotally connected by a link Q with an upright arm Q fulcrumed at Q on the main frame B (see Fig. 5), and onthelowcr free'end of the arm Q* is journaled a friction roller Q in peripheral engagement with a cam Q, secured to the main cam shaft O. Thus when the machine is running,- the mechanism just described imparts a. swinging motion to the lever arm D, so asto move the pin'D out of engagement with the foremost can head A (see Fig. 12) to release the same and thereby allow the platform C to carry the released can head to the transferring or shifting device E. The arm D is returned to its normal position shown in" Fig. 11, by the action of the spring 1) at about .the time the next following can head is carried rearward by the platform C to a point near the ends of the rim P and the segment P so that further travel of this can head is prevented forthe time being.

' In order. to prevent a. can head after being released, from sticking, use is made of a.

slide D adapted to pass with its free end over the platform C in contact with the peripheral'face of the can head A, so as to loosen the same in case it should stick and,

thus allow the platform O to carry a released can head along. The slide D" is mounted to slide in bearings. Bf forming part of the main frame B, and the outer end of the slide D is pivotally connected with a lever D fulerumed on the main frame B and pivotall-y connectedb fai'link D with the arm D Thus when t e arm D is swung out- Ward from the retaining position shown in Fig. 11 to the releasing position shown in Fig. 12, then the slide'D is pushed inward. by the mechanism just described, so as to 'loosenft-he released can head, and when'the' arm D swings from the releasing position back into the retaining position the slide 1) is withdrawn in the position shownin Fig. 11;

The transferring device E is arranged as follows, special reference being had to Figs. 1, 2, 3 and 8: Over the rear portion ofthe platform C is arranged a segmental pus helm E adapted to engage the front of the peripheral face of a can head A carried by thev platform C to the rearmost position (see Fig. 1), and said pusher E is provided with arearwardly-extending finger E adapted to, extend overthe top-of the can .headA at the time the pusher E is in :engagement with the can. The pusher E is "secured to an overhead slide E mounted 'to'reciproca'tc transversely in suitable guideways P, attached to or forming part of the plate P.

- The slide E is pivotallyconnected by a link.

R with a bell crank lever B, fulcrumed on the main frame B and pivotally connected by a link R 'witha bell crank lever Rf, fulcr'umed at It on the rear end of the main frame B. The bell crank lever B is pro- I vided with a friction roller R engaging a cam groove R in a cam R attached to the cam shaft 0. Sow when the machine is running, the mechanism just described imparts an intermittent reciprocating motion to the slide E and consequently to the pusher E,

to more the can head A, engaged by the pusher at the time, in 'a rearward direction,

. lowing arrangement is made, special reference being hadto Figs. 1, 2. 3, 6, 8, 9, 10 and 10. The slide F on which the platen F is fastened ispivotally connected by a link S with a bell crank lever S fulcrumed at S on the main frame B, and on the said bell crank lever S is mounted an anti-friction roller S engaging a cam grooves in a cam S secured on the cain shaft 0. Now when the machine is running. the mechanism just described imparts an intermittent reciprocating motion to the slide F and consequently to the platen F, to move the notch F alternately in transverse alinement with the pusher E and in axial aline ment with the mandrel G and the clamping head H. The reciprocating movement given to the platen F also, moves the aperture F alternately in axial alinement with the-mandrel G and the clamping head H and over the chute B to discharge the'finished can head from the machine, as previously mentioned. I 7 u i In order to lock the platen F alternately in the positions of rest, the following arrangement is made: On the top of the slide F is secured or formed a bar F provided at its rear edge with notches F F adapted to be engaged by a transversely-extending locking bolt T, mounted to slide in suit able bearings B arranged on the main frame B, as plainly indicated in Fig. 2. The locking bolt T is pivotally connected with a bell crank lever T fulcrumed' at T on the main frame B, and the said bell crank lever T is pivotally connected 'bya link T with a bellcrank lever'l fulcrumed at T on the main frame B and carrying an anti-friction roller T engaging a cam groove T, formed in one face of a camT secured on the cam shaft 0. Now when the machine s running, the above described meehamsm imparts an intermittent sliding movement to the bolt T,

to successi'iely engage and disengage the notches F", F, to lock and unlock the platen F at the proper time. Thus when the platen F is in its right-hand end position the bolt 'T engages the notch F", and when the platen F is in its left-hand end position the bolt T engages the notch F.

A turning and an up and down sliding motion is given to the mandrel .G' b the mechanism presently to be describ and shown more fully in Figs. 5' and 6, seealso Figs. 9, 10 and 10. The mandrel G is mounted; on the upper end of a verticallydisposed shaft G, mounted to turn and slide up and down in bearings arranged on the main frame B, and on the shaft G is secured a gear wheel Gr in mesh with a gear wheel G journaled in suitable bearings on the mainframe B. On the lower end of a shaft G? is secured a bevel gear wheel G in mesh with a bevel gear wheel Gr fastened on the main driving shaft N, so that when the machine is running a rotary motion is given to the mandrel G by the mechanism just described. On the shaft G of the mandrel G'is arranged a shifting collar U, engaged by the forked end of a shifting lever U fulcrumed loosely on the shaft 0". previously mentioned, and on the levgr U is mounted an anti-friction roller U engaging a cam groove U in a cam U (see Fig. 16), so that when the machine is running an intermittent up and downsliding movement is given to the mandrel G by the mechanism described. By reference to 6 it will be seen that the gear wheel G is comparatively narrow, so as to remain at all times in mesh with the-wider gear wheel G during the up and down movement of the shaft G. I

. The clamping head H serves to hold the can head in position on the rotating mandrel G, so that the latter rotates the can head and the clamping head H automatically controls the amount ofpacking material A to be delivered by the supply device I. For the purpose mentioned the, following arrangement is made, special reference being had to Figs. 1, 2, 9.10 and 14:: The clamping head H is mountedloosely on the lower end of a spindle H, fitted to -slide'up and down in a hearing B forming part of the main frameB, and aspiring H is interposed between the head H and the bearing B to firmly engage the head H with the top of' the can head A at the time the mandrel G moves into its uppermost position, the spring H being compressed, as will be readily understood by reference to Fig. 10. The spindle His'provided with a'stop collar H adapted to rest on the top of the bearing B to limit the dQWnward Islid-in'g mo vement .'of-; the. said spindle 1 H, as indicated in Fig; -'9.'-:-r Thus =-when'the'mandreliGis in itslowermostpositinny-the: clamping heads-H is likewise held -:..5 :in:-its lowermostposition by 'theaction of soas not -to interfere withthe movement j of the platenEfromthe'le ft to the right. :When' the mandrel G rises andengages and lifts" the" can head A, the'latter finally engages the clamping head H, which is thus rnoved upward to the position shown in Fi g IO; During this upward movement of the'clamping head H- and"the spindle H, .-the packing material A is "allowed to flow onto the flange A of thej'can head; and

forthis purposetheneedlevalve I in "the nozzle If cf thesupply device I is lifted. so that a desired amount of packing" material flows onto the-flange A of the can head"A.' The nozzle I is connected by a pipe 1,ha'ving avail-rel, with a reservoirI containing the packing material, being understood that during the operation ofthe machine the valve I is open.- The outer .end of'the needle valve- I is connected by alink 1 with a leverI Qfulcrumed on'a bracket l attached to the reservoir It, the lever pressedon by afsp'ring lfliso as to normally hold the needles valve 1 in aclosed position 'in the nozzle 12. as indicated in Ti 14.

W I .l-l1 e; -lever If'is, periodically actuated by. a

' lever V',,nor1nally standing abqve oneisideofl the free end of the-lever 1 (see Fig. 9)-,'and thelsaid lever V is pressed onby a spring Y and is fulerumedat V on a bracket- 1? 40: attached to theuguideway P the said lever .V :being connected-by a-link Viwith a bell crank lever V, fulerumed at V on the main frameB, and carrying africtionroller V engaging the peripheral faceof a cam V secured on thecam shaft 0." As. previously .;mention ed,the lever V stands to one sideof the :lever I, and inorder to swing the lever V laterally over the-free end of ,the lever 1 connection is made between the spindle H.

" and the lever v, as indicated innigse and.

10.", For the purpose mentioned, the upper end-of thespindle-H is-v'p-ivotallyconnected with abell crank lever H, fulcr'umed. at

'on the bearing-B 'nd-the said bell crank' leveir I'Fjis 'con'necred by a link H with the lever V, the latter being mounted at its fulcrum V? in sucha manner as to allow both upland down as well as a slight lateral-movement. Now whenfthe machineis running, and, the head His raised, as previouslydescribed, then the spindle H actu- 1 ates the bell -crank.;lever H which by the link H swings-the lever V over, so as to.

extend above the free end of the lever I,--as

(the cam V: actuats the; connection withlthe lever: V, so as to? impartasyvingingamotion r to the latter, --whereby the lever-acts onthe lever I and the-latter xliftsthei-rieedle valve l thus iopening the nozzleI" and allowing :a quantity of the packing-niaterialetooflow from the reservoirl ontopth'l flange of the can head A, in position on-=thef=mand1el G at the time. Q The needlevalved'f isheldopen a sufficient length oftime t'o pass thfdsired quantity -of packing material;- onto" the flange A, and when thishas'beenflone'thecani V and its connection; witlr the "lever returns the latter to norinal position,sol-thatthe lever l returns to "normal position by the action of *its' spring 1,and the-needle valve I is consequently closed. 'fW hen the-claniping head H and itsspil'ldle I I- return to theii'ilowerinostposition; the lever V-is shifted laterally back to its 'previoiis'fpo'sitiom that is, to one sideof the fie'fiid ofthe "lever I, and consequently the rainy cannot actuate the lever liftorlittin' the needle valve 1 unless the clamping head I is raised as previously explained; that the packing material cannot be discha ged'fiflointhefiiozter' littsfth's'aid can head. 1 i '1 7 1 1 i "fin order tdnove thefrollel".Jlinto'and' out' I of, engagement with the edged, to bend the \sanie slightly over as before expla ned, use is made of the followingdevice, special reference being hadito Figs 1,-=2, 3,4, and 6.

otally connected by a f with 'a le\ 'er .I%, f ulc'runied atrJflon the nain tran e: 13, and

' thesaid lever Jfjis':pivotally{ connectedby a link J wji t h a lever tulcru nedat. 5 1011 the .main frame B andcarrying'nn antifriction .roller lli engaging. cam groove J formed in a cam 'J? (see lfig; 15) secured. on

the cam shaft 0. h'ow 'avhen the machine is runnin g, the abose d'escribed nechanisniim; parts an intermittent lreciprocatihg motion 1. to the slide J ',whichIlatterfmoveslhe roller J in-and out of engagement with thecdge A to bend the latter .slightly inward, as before explained, In v,order' to keep-the lpackingjrnatcrial contz rined -in theircservoiijl atlall tiniesin proper'condition, itfis desirable to stir or agitate the said material \\l l l1lll 1ll resortvoir '1 "For the purpose,' nientioii el'us "made of a stirringshaftM eflga g ep ex tending within, the reset-v5: hauing' stirring armsW alternating Ir-fired ring arms W arranged yitl il -thercscrvpi'r.

I and attached to the avallgtliereoti El i outer upper endof thesha'tt' witha, pulley W", over i'v'hicli a ll also passing over guidcgpulley around a pulley W aneuretl 01154- 1 5' I drivinglsha'i't N3; ,"l hus; when the machine 65 shown in Fig. 10. When this takes place is running, the stirring arms W stir up the material in the reservoir 1, 'so as to keep the .same in proper con'dition,-it beingiunderstoodthat'for cement or-a similar packing .materialyit ma'y be necessary to connect the reservoir-I with a-compressedalr reservoir, to insure a proper flow of the liquid throu hthe pipeI, and the nozzle If whenever t e needle valve I is l-ifted.. The carrier belt K passes over .a number of pulleys K of which one is the driving pulley, and is secured ona shaft K. journaled on the lefthand sid'e of the main frame B, as indicated i n Fig. 4. *On the shaft Ktis secured a pulley K over which-passes a belt K, also passing. overa pulley.K secured on the main driving shaft N, and hence when the shaft N is running, a continuous traveling motion will be given to the belt K in the direction of the arrow 0', to carry thefinished canheads from 'thechute B 'to the shifter;v

i and spreader L-, which pushes the finished can heads onto the conveyer'belt K extendin at right angles to the. belt K. The

" .shifter- L extends obliquely mime belt K'and is caused; to reciprocate, so "as to move the fin1shed'can heads-successively onto different placeson thejconvey'er' belt K, to 'preh vent the can vheads from being passed one on" top of the other. For the purpose'men xtioned, the shift'er, L'is attached to a -slide L, mounted to slide insuitable guideways L held'on a frame L for-"supportingihe v carrying mechanism for the conveyer 'belt K The slide L 'ispivotally connected'by; a pitman X with a crank X secured on a sh'aft"X journalc'd in suitable bearings car- 'ried by. the main frame 13, arid on the shaft -X is secured a pulley;X over-which passes abelt also "passing-over a pulley X secured on'the cam shaft 0. Thus when the machine is running, the shaft X 'is turned from the 'cam shaft Oanda reciprocating movement isgiven to the slide L and-its shifter 11 by the mechanism above described; The operation isa's follows: The attendant standing'in front ofthe machine moves the can heads A one after the other from the table B toward theplatform C, which head finally reaching the retaining and re-' leasing "device D, at which point "the pin' carries-tlie can heads one behind the other through" the guideway' formediby the rim- P' and the segment P, the foremost can P temporarily retains the :foremost can head'atthe terminal of the said guideway.

The retaining and releasing device D at the fproper time releases the foremost can head,

and at the same time this can head receives a-bo'dily movement by the action of the slide D to'p'reventsticking of the released can head, the latter being new carried furtherv rearward bythe revolving platform C,-

l :to finally reach the rear of the pusher E,

" which then moves transversely toward the rear" of the.- machine, thus transferring the can head-from the platform Q onto the rear table B and into thenotchFthen in-trans-v verse alinement with the pusher E. The can head while being pushed into'the notch F passes 'thevfreeend ofa sprin arxr1 "'I attached to' the platen F and exten 'ng with its free end into the-entrance end 'of'the notch F'- at one side thereof, the spring arm F preventiug'thelcan head from acci 4 2s platen F is subsequently moved over held in the notch F 'to-theleft and centrally. j :over the mandrel G,. which is at this time in,it-s lowermost position, as shown in Fig.

9. The mandrelG-now'risesandl-iftsjthe can head oiffthe said'table 'B, afid'engage's"" the. top; of the can head with the clamping head H, which in rising pulls the jlever" V into .active position relativelyltothc leverv l1", and at; the same time the lever 1V is actuated a by the 'camyfi'so'thatetheflever I is actuated to lift the needle valve iii-arid thusopem the nozzle Ifor the packing material to. flow onto .theffia'nge' A of the can head j 'volvi'ng with -the. mandrel G. Y The packing material is thus evenly distributed "on the annular fiangQ A, and when' thisha's been- -accomplished"the cam'v 'ana the connectio is I withth'levetV causes thelatte'r to return,

to allow the -spring"- I to" close -t-he needle valve 1. V At'the same'tiine, while the "pack:

in'g' material is distributed on j theannular slightly bendsthe "edge A of [the -can -hea'd inward, to hold the packing lnater-ial'omthe videdwith a plain peripheral face (See Fig.

en the roller J is moved into 6), so that w engagement with the'peripheral edgez A of the rapidly revolving "can head, then;the, said edge A is bent inward. During this "bending o 'erati'onthe platen F returns-Ito the rightand side position,- so that the 5 aperture F is moved'in'to axial-alinement with the mandrelGr (seeFig; 1), while-the notch F',' is returned "to position, to receive another can head from the platform Cfby' the action "of the pusher E. After the edge A= is bent-inward by, the roller" J, the latter recedes and the mandrel G moves down:

ward to return the now finished-can-head to the table B (see Fig. 1'O),-and into-the aperture F, and --onthe next movement to 1 the left of the platen 'F- the finished can head is carried along by the said laten and dc livered-to the chute B -wh1ch carries-the completed can headto the. belt K, from which the completed can head is pushed by onto the endless carrier K, whichlatter is preferably heated by steam coils:=r other means for drying the packingimaterial. It is understood that when the platen F moves to the'left, to deliver I thepreviously-completed can'head, another can head is carried by the platen to "the mandrel, to receive the packing material and to have'its edge bent inward the-same ;as above described in relation to the previously completed can head.

From the foregoing it will be seen that by the machine described, a large number of can heads can be treated in a compara- 'tively short time, each can head having the edge of its flange bent inward to retain the -packingniaterial-,-so as to produce an airtight double seam when attaching the can head tothe can body, thus rendering the can exceedingly serviceable for packing various food products therein Without danger of leakage. In order to double up the edge A of the friction can head-A shown in Fig. 22, use is madeof a roller J instead of the roller J, provided with an annular groove J adapted to engage the edge A and to completely turn the edge over onto the flange A on-adv'ancing, the said roller J the same as the roller 3. In treating can heads A ,-thedeviceI for supplying the packing material is entirely dispensed with, but otherwise the machine is the same as above described.

1 Having thus described my invention, I

claim as new and'desir'e to secure by.Let-

ters Patent:

1. A machine for bending the edges of can heads, comprising the following instrumentalities, in. combination, a "revolving platform for receiving can'heads, a retaining and delivering device for temporarily retaining the foremost can head on the said platform and then releasing the same, a transferring device for removing the releasedcanhead from-the said platform, a

, platen for receiving the can head from the said transferring device, a mandrel for re- '1 moving the saidcaii head from the platen and returning it to the same, and for turning the said'can head,-and a bending device for bending the edge of the can head while the latter is removed by the said mandrel from the laten, the said platen discharging the competed can head from the machine after it is returned ,to the said platen.

2, A machine for bending the edges of canlheads, comprising the following instrumentalities', 'in combination, a. revolving platform :for receiving can heads, a retaining and dellvering device for temporarily retaining the foremost can head on the said platform and then releasing the same, a transferring device for removing the released can head from the said platform. a

platenfor receiving the can head from the saidtransferring device, a mandrel for removing the sa d can head from the platen and returning it to the same and for turning the said can head, a bending device for bend ing the edge of the can head. While the latteris removed by the said mandrel from the platen,'the said platen discharging the comis ,returned to the said platen, and means for delivering a packing material to the can head while on the said mandrel and previous to bending the edge thereof.

ing the said can head, a bending device for bending the edge of the can head while the latter is removed by the said mandrel from the platen, the said platen discharging th'e completed can head from the machine after it is returned to the said platen, means for delivering a packing material .to, the can head while on .the said mandrel and previous to bending the edge thereof, and 0011-, veying means for receiving'the completed can head after it is discharged by the said,

' )laten the said conve in means servin to 7 b deliver the completed can head to a drying.

, means for drying the packing material.

4. A machine for bending the edges of pleted can head from the machine after it h can heads, comprising the following instru- I mentalities, in combination, a revolving platform for receiving the can heads, a retaining and delivering device for temporarily retaining the foremost can head on the said platform and then releasing the same, a transferring device for removing the released can head from the said platform, a

plated for receiving the can. head from the said t ;ransferr1ng device, a mandrel for removlng the said can head from the platen and returning it to the same and'for turning the said can head, a bendingdevice for bending the edge of the can head while the latter is removed by the said mandrel from the platen, the said platen discharging the completed can head from the machine after it is returned to the said platen, a main driving shaft, and connections between the said driving shaft and the said instrumentalities for actuating the latter in theproper se quence. r

5. A machine for bending the edgesv of can heads, provided with a revolvingplatform for receiving the canheads,la guide plate extending above the said platform and having segmental guideway for guiding thecan-heads one behind the other while carried along by the said platform, and an adjustable segment extending from the said plate into the said guideway close to the up per faces of the can heads toprevent the latter from assing one on top of the other.

6. A macliine for bending the edges of can heads, provided with a 'revoluble platform, and a retaining and releasing device acting in conj unction with the said platform for temporarily retaining the foremost can head on'the said platform, the said device having means for'bodily moving the can head after the same is released.

7. A machine for bending the edges of can'heads, provided. with a revolvingplatform for receiving the can heads, a guide plate extending above the said platform and having a se mental guideway for guiding the can heads one behind the -other while. carried along by thesaid platform, and a retainingand releasin device acting in conjunction with-the sai platform and guideway for temporarily retaining the foremost can head on the platform at the end of the said guideway, the said retaining 'and-releasing device having means for bodily mov-' ing the can head after the same is released.

8. A machine-for bending the edges of can heads, provided with a retaining and,

releasing device having an arm provided with a retaining pin for engagement with the can head, a slide for engagement with the can head, means forimparting a swinging motion to the said arm, and means connee-ting the saidarm and slide to move the same in opposite directions.

9. A machine for bending the edges of can heads, provided with a reciprocating platen having a recess and an aperture connected with the recess by a slot, means for feeding a, can head into the recess of the platen, a revoluble and vertically sliding mandrel, means for operating the platen to carry the can head in the recess thereof over the mandrel, means for elevating the mandrel, a clamping head for engaging the can head on the mandrel, and means for engaging the edge of the can head to bend the means for moving a can head onto the said same.

10. A machine for bending the edges of can heads, provided with an intermittently reciprocating platen having a-vrecess, an aperture connected with the recess bya slot, a table over which' passes the said platen,

table and into the said platen recess, a man- ,drel mountedto turn and to slide'and adapted to register with the said platen recess and aperture, the hub of the mandrel being adapted to vpass through the said platen slot and the mandrel being adapted to lift-the canihead 0a the, table and out of the platen notch, to return the can head to the table and into the platen aperture, a clamping head for engaging the can head on the mandrel to rotate the can head with the mandrel, and a roller for engagement with the edge of the canhead to bend the same; 11. A- machine for bending the edges 0 'canheads, provided with an intermittently reciprocating platen having a recess, an aperture connected with the recess by a slot, a table over which passes the said platen, means for moving a can headonto the said table and into the said platen recess, a mandrel mounted to-tu-rn and to slideandadapted to register with the said platen recess and aperture, the hub of the mandrel being adapted to pass through the said platen slot and the mandrel-being adapted to lift the can head oi the table and out of the platen notch, to return the can head to the table and into the platen aperture, a clamping drel to rotate the can head with the mandrel,

a roller for engagement with the edge of the can head to bend the same, and means for delivering a packing material to the said can head prior to bending the edge thereof by the said roller.

12. A machine for bending the edges of can heads, provided with an intermittently reciprocating platen having a recess, an aperture connected with the recess by a slot, a table over which passes the said platen, means for moving a can head onto the said table and into the said platen recess, a mandrel mounted to turn and to slide and adapted to register with the said platen recess and aperture, the hub' of the mandrel beingadapted to pass through thesaid platen slot,

vand the mandrel being adapted to lift the can head-off the table and out of the platen notch 'to-return the can head to the table and into the platen aperture, a clamping head for engaging the can head on the mandrel to rotate the can head with the mandrel, and a reciprocating slide carrying aroller for engagement with the edge of the can head to bend the edge.

13. A machine for bending the edges of can heads, provided with a table, an intermittently reciprocating platen forcarrying a can head over the said table,--a revoluble platform for carrying the can hzai'is, means for feedmg the can heads from the platform to the platen, a mandrel mounted to-turn and to slide up and down and adapted to lifta can head off, the table and platen, a yieldingly mounted clamping head for engagement with the can head on the mandrel for rotating the can head with the mandrel,

slide carrying a roller for engagement with the edge of thecan and a reciprocatin head to bend the said edge.

14. .A machine for bending the edges of. can heads, provided with a mandrel mounted'to

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