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Publication numberUS1590333 A
Publication typeGrant
Publication dateJun 29, 1926
Filing dateJun 4, 1923
Priority dateJun 4, 1923
Publication numberUS 1590333 A, US 1590333A, US-A-1590333, US1590333 A, US1590333A
InventorsNils Tevander Swan
Original AssigneeSwan Metallic Seal & Cap Compa
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Curling machine for caps for jars
US 1590333 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 29 1926. v 1,590,333

Y s. N. TEVANDER CURLING MACHNE FOR CAPSVFOR JARS Filed June 4, 1923 6 sheetsheet 1 l 3 ZZ yl/f .3v l f h/ Q 3 f* v l0 w/ l /27 @9 1i 35 i J6 x if? Z5 Q19 1 9 2 l 35 @9 5 5 June 29 l1926. 1,590,333

S. N. TEVANDER- CURLING MACHINE FOR CAPS FOR JARS Filed June 4. 1923 6 SheetsSheet 2 M n n June 29 1926. 1,590,333

S. N. TEVANDER I CURLING MAGHNE FOR CAPS FOR JARS Filed June 4, v1923 5 sheetslsheet k:5

1,590,333 s. N. TEVANDER CURLING MACHINE FOR CAPs FOR JARS Filed June 4, 1923 6 sheetsLShe-. 4

June '29 1926.

Junezs 1926. 1,590,333

S. N. TEVANDER c'URLING MACHINE FOR CAPs FOR JARS Filed June 4, 1923 s sheets-Sheet 5 June 29,1926. 1,590,333

S. N. TEVANDER CURLING MACHNE FOR CAPS FOR JARS Filed June 4, 1923 6 Sheets-Sheet 6 CAI i chucks.

-Patented June 29, 1926.



Application led June 4,

This machine is adapted to curl over the edge of a flange ora cap used to cover the top of a jar or receptacle that is to be sealed thereon by a special machine not shown, which changes the shape of the iange or the skirt of the cap from what is shown'in these drawings to a form which seals the cap on to the mo'xh of thejar or receptacle. The function ot this machine is simply to curl over the raw edge on the skirt of'the cap and to do this in the most expeditious manner and most desirable form from the standpoint of the results arrived at and the mechanism employed which is the object of the invention.

Reference will be had to the accompanying drawings in which Figure 1 is a sectionalv A elevati-on through a portion of a cap whichis'Ip-repared ready to be operated uponnby:4

the machine. Fig. 2 shows a similar view to that of Fig. 1 but shows the edge of the iange of the cap curled over as the finished product of the machine. To change the edge of the vskirt or liange of the cap from that of Fig. 1 to that ofFig. 2 is the functionkinds and were the edge to remain as shown 4in Fig. 1 it would ybe a sortoa raw cutting 'edge from the actions in blanking and formof the machine.

Fig. 3 is a sectional elevation of the Inachine on line 3-3 of Fig. 14. Fig. 4 is a' sectional view through the. curling heads. lor chucks of the machine when the same are in position for receivingthe cap to be operated upon. Fig. 5 is .a similar view to that of Fig. 4 showing the next progress step-of operation of the machine from that of Fig. 4 to Fig. 5. Fig. 6`is a similar view to that of Figs. 4 and 5 showing the parts at the completion of the operation of the curling over .of the edge of the flange. Fig. 7 is a similar view tothat of Figs. 4, 5, and 6 showing the step of discharging a cap from the curling heads or chucks. Fig. 8 is a sectional viewV through the body of the machine showing the curling heads or chucks in section and their connecting parts. Fig. 9 is a vertical sectional elevation on line 9 9 of Fig. 11. Fig. 10 is a plan view showing the caps going from the hopper chute into the curling devices. Fig. 11 1s a plan view of the machine. :Fig 12 is a plan detail of a detector device that insures the entry` of the caps from the hopper in the` rightl position to be received by the curling Fig. 13 is -a sectional detail of a cam structure, on line 13-13 of Fig. 14. Fig. 14 is a side vertical elevation of the 1923. Serial No. 643,209.

-metal for the outside portion of the capl 4may use any suitable material and likewise `I lmay line with any suitable material besides paper. lhe lining is securedv to the metal by a suitable adhesive which serves to keep thetwo materialslin such close contact that they amount to a single piece in so far as the-operation upon the cap is concerned. The cap is lirst formed as shown, in Fig. 1 having itslange beaded as is indicated by 4,y 5 and 6 and as before stated the purpose of "the machine is to curlover the edge 6 1nv the form indicated'by 7 in Fig. 2. Thus the edge pf the metal portion is made to over- -zlap the edge of the lining portion which insures against the vlining' coming loose from the material on the edge of the `flange of the individually by the hand in their further use as caps over jars and vessels' of` various ing the caps but with the curled over edge 7 a smooth desirableedge is produced.

The caps formed as lshown in Fig. 1 are thrown into the hopper 8 of the machine,

see Figs..3 and 11, in a more or less promiscuous shape. An operator stands by the machine and one by one directs the caps down the hopper in a form shown by the gottedlines 9 in Fig. 3 and full lines in It -is necessary that these caps be rightly positioned in the chute 10 which l.conducts them from the hopper 8 into the machine .and in order that they cannot pass through the machige in any other than the right' position I provide a spoked wheel 11 having the spokes 12 and mounted on a pin 13 and adapted to rotate under the influence in the caps 9 passing down the chute 10 as is shown in Figs. 11 and 12. yWere the caps to vbe reversed from the position shown in Fig. 12 the spokes 12 of the wheel 11 would lock the cap from passing further through thechute and by this means the caps are always delivered into the `chucks in the right position to be received by them.

vThe machine is provided with a suitable cap. --Furth'eiy these caps are often handled simply as one of the frame members and also as a mandrel upon which is mounted the operative parts of the machine, some of -which are statlonary upon the shaft 16 and some of which are mounted to revolve on this shaft.

As aterminus for the chute 10 to receive the caps 9 there is provided a revolving carrier member 17 which in some respects has the appearance of a toothed wheel or cam'and is rovided with the pockets 18 and what may termed the cam surfaces 19 arranged in a manner that as this member' revolves it takes out of the chute 10 a single unit of a cap each time one of the pockets n18 revolves past the end@ of the chute 10, rsee Fig. 9. This carrier member 17 is secured bythe bolts 20 to some studs 21 into va chuck spindle castin 22 rwhich provides the journals 23 in whic the chuck spindles l24 revolve. This chuck spindle casting 22 is provided with the hub 25 journaled on to the shaft 16 and is provided with an oil cistern 26, see Fig. 8. Mounted on the chuck spindle casting 22 there vis a driving gear 27 which is driven by a pinion `28 on a'shaft 29 suitably journaled to the machine frame and driven by a pulley 30 under theV inuence of a belt 31, connected to the shaft 29 through the medium of a clutch 32 controlled by the operator as desired by the lever 33. For hand movement of the shaft 29 there is provided the hand wheel 34, see Fig. 14. Thus in the normal operation of the machine the chuck spindle casting 22 continuously revolves so lon as the power is applied to the shaft 29. pon the chuck spindles 24 there arey ke ed the pinions 35 which are engaged and driven by a gear 36 having its hub 37 revolving on the saidv shaft 16 and upon an egitension of this hub 37 there is fixed by. a key seat and a set screw afdriving gear 38 which is driven from the gear 39 on the said shaft 29 through the medium of an idle pinion 40 and the latter being used for the purpose of reversing the direction of the travel of the gear 38 from that of the gear 27. Thus as-t e gear 27 with its chuck spindle casting 22 revolves, the` chuck s indle's 24 are mad to revolve at a relative y high rate of spee The chuck spindles 24 carry chuck blocks 41 suitably fastened on the spindles 24 but here shown as being threaded on, and these blocks 41 carry small grooved curling rollers 42 which revolve on pins 43 in the chuck blocks 41.

The spindles 24 are perforated and provided with sliding rods 44 which serve to push the caps from the seat or pocket 18 when a cap first arrives from the chute 10 v of some cam out into the embrace of theholding chucks is accomplished by a stationary lcam block 46 screwed to a bracket 47 by bolts 48, see Figs. 8 and 14. The cam block 46 works against the rounded end 49 of a bar 50 which carries a spring 51 in an aperture of the bar 50, which spring `51 abuts against the end of the rod 44 and thus connects the rod'44 to the block 50, making the two pieces operate substantially as one with the exception of the adjustment allowed for the spring 51 by a small pin 52 working in a notch 53 of the rod 44. A spring 54 abuts against' the end of the block 50 and serves to restore the movement of the parts that are affected by the cam block 46. The movement produced by the spring 54 is limitedv by a shoulder on the block engaging the cap 55 screwed on to the spindles 24. At the lower side of the machine there is providedv the ejecting cam block 56 having the cam surface 57 and sup orted by the stud 58 and.bolt 59 in the rame post 14 of the machine, see Figs.. 8 and 13. The purpose of this cam 56 isto eject and dis charge entirely theA finished cap from the machine. 5' :1 v y f At the right of the machine and opposite the block or casting 22 and firmly secured thereon to revolve therewith there is the spider casting 61 'which provides carrying 45 opposite the chucks 41 and this movement guideways 62'for rods 63 which are splined in the guideways 62 and are adapted to slide horizontally `in the guide 62 but not to revolve therein, and mounted on one end of these rods in fixed position are the holding chucks 45. On the opposite end of each of the rods 6 3 'a cam roller 64 is revolubly mounted on one of the pins 65. These rollers I64 travel in the cam track 66 ina cam block .thechucks 41 ina manner of holding the cap to the work ofhaving the edge curled over by the curling rollers 42'. In the revolution ofthe blocks 22 and 61, the'rollers 64 in the cam track 66 move the holding chucks 45 in and out as desired at the severall stages of the rwork and the `finished caps are ejected from the holding chucksv 45 bythe ejector V-VA plates 68 supported by pins 69 within the said blocks 45. These plates 68 with-their pins 69 simply float in their movement vunder the iniluence of the push of the rods 44 in one direction, and the push (pilates 70 fastened b screws. 471 to the gui pins 69 are made to contact with the Iplates' 70 because of the fact that the plates 0 limit the stroke at which the pins 69 may be drawn to the right when the rods 63 with eways 62. j The en s of 'the the chucks 45 are moved to the right to the full limit at the position of the machine where the cap is to be discharged. Thus there is automatically produced the ejection of the cap from the holding chucks 45 when the spider 61 has revolved around to the desired position where the cam track 66 withdraws the rods 63 to thev full limit to the vright which is the position for discharging stantially as a part thereof.' The purpose 7ofthis cam ring 72 and its cam tracks 73 iis to actuate at the proper moment the pin 75 to hold or dam otf the caps 9 from flowing out of the end of the chute 10 during the travel from chuck to chuck as the chucks revolve past the mouth of the chute 10. This pin 75 is held in a keeper plate 7 6 secured to the chute 10 by the screws 77, see Fig. 9, and a spring 78 working against a collar 79 keeps the pin 75 always 1n position of contact with the last cap 9 -in the chute, and it is the function of the cam tracks 73 of the ring 72 to momentarily release the 'contact of this pin 75 with the caps when it is desired that one should roll by gravity into the pocket 18 of the carrier plate 17. The connection between the pin 75 and the cam track 73 is brought about by a plate 80 through which the head of the pin 75 passes and the plate 80 is hinged by the screw 81 to the frame member 82 yof the machine. Thus as the chucks are revolved one by one the caps are allowed to roll out of the chute 10 at the proper interval to register in the carrying pockets 18.

The arrangement ofthe machine as described permits a continuous revolution of the chucks past the chute l0 and at the proper interval a cap is taken out of the chute and by the action of the cam tracks before described the cap is irst pushed by the rods 44 from the position shown in Fig. 4 over into the position in Fig. 5 which results in the -cap being held rmly in the carrying chucks 45 there being a snug t of the cap into the flange 83 of the chuck 45. From the position of Fig. 5 the camy track 66 forces the rods 63 over to the position of Fig. 6 bringing the edge 6 of the ange of the cap into the curling groove of the rollers 42 which rollers arev carried around rapidly by the rapid revolution of the spindles 24 through the medium of the gearing previously described. There being three of these rollers 42 in each chuck 41 working as a-balance upon the flange of the eap they rapidly curl over the edge 'of the `for the caps ,faced from th flange of the cap to the position-shown by 7 discharged to the position of Fig. 7, and the caps immediately drop out of the machine as soon as the rod 44 is drawn backy again by the spring 54 when permitted to do so by theend 49 of the bar 50 immediately upon the clearanpe from the cam block 56. Thus the operation of the machine is substantially as rapid as the operator may properly supply the caps in the right positionin the chute 10.

What I claim is 1. In a device of the class described, a chuteway adapted to deliver caps in succession, a constantly moving carrier member, a series of holding chucks mounted yon one side of the said carrier member and a series of curling chucks mounted on the other side p 1 ,of the said carrier member, the said holding chucks-being stationary as relates to rotating movement but adapted to move longitudinally at approximately right angles to the said carrier member, and said curling chucks adapted to be revolved about the axis of the cap and providedg` withV grooved curling rollers to engage the flange on the cap and curl the same back upon itself, ejector mechanism for moving both sets of chucks in alignment with each other, stationary cam tracks andmechanism connected therewith for forcing the caps into the embrace of the holding chucks and also for discharging them from the curling chucks; in combination with suitable gearing and source of power for revolving the said chucks and carrier member past the said chuteway and for simultaneously revolving the said curling chucks.

2. In a device of the class described, a delivery chute adapted to deliver caps successivel to curling chucks, a curling chuck adaptedY to be revolved about its axis and also revolved past the said delivery chute a holding chuck oppositely e said curling chuck and in alignment therewith and adapted to be revolved bodily but not circumferentially in association with the said curling chuck and provided with an ejector mechanism carried within the body of thev holding chuck and the twochucks mounted to revolve in unison in relation to the said delivery chute and mechanism for automatically moving the holding chuck to and from the curling chuck.

3. In a device' of the class described, means' curling chuck, means for revolving said curling and holding chucks about a common axis. means for revolving each curling chuck about its axis, cap ejecting means Ior each curling chuck and means for reciprocating each holding chuck intov and out of engagement with a cap on a -co-acting curling 4. In a device of the class described,the combnation with a plurality of curling chucks each provided With a plurality of curling'rollers mounted to revolve freely on axes perpendicular to the axis of the curling chuck, means for rotating each curling chuck about its axis, means for supplying properly positioned capsto said curling chucks, a plurality of cap holding chucks adapted to hold1 a cap while operated upon by a co-acting curling chuck, means for rotating said curling and holding chucks about a common axis, and means for releasing the curledcaps.

5. In a device of the class described, the combination With a revolving spider having a plurality of longitudinal bearings, a plurality of curling chucks, each liaving'a plurality of curling rollers, and mounted in said revolving spider, a holding chuck for each of said curling chucks, means for re volving said spider, means for revolving in a reverse direction said curling chucks 1n .said bearings in said spider, means for relivery of the caps to the said curlingmecha? nism, two series of chucks one composed of members `for holding caps and the other series for operating on the caps, means for moving the two series in relation to each volving one series of the said series of chucks, and means carried within one of the series for curling over the edge of the caps.

7. In a device of the class described, a frame having a central supporting fixed shaft fixed in the said frame and adapted to furnish an axis for sup orting revolving and fixed members, revo ving and fixed members mounted upon said xe'd supportin shaft, some of the said fixed members being provided with cam tracks, a series of rods carried by the revolving members and mounted to move in parallel relationship with the axis of said fixed shaft and adapted to be engaged and moved by the said cam tracks, a series of spindles carrying chucks, the said rods mounted' Within the said spindles, a series of chucks mounted on the said spindles, said chucks provided with curling rollers adapted to curl over the flange of a cap upon itself, gearing mounted on the said ixed shaft and connected to be driven and carry with it the said revolving members.

8. In a device of the class described, a delivery chute for caps, a revolving spindle, a rotatin and moving chuck mounted upon said revo ving spindle adapted to operate and curl over a flange of a cap upon itself,

means for carrying the said chuck to andw from said delivery chute for the caps, means contained Within the said spindle of the said chuck for moving a cap longitudinally and parallel with the axis of the said spindle, stationary cam tracks past Which the Said spindle of the said chuck is moved, said cam tracks adaptedto actuate the said means Within the said spindle for moving the said cap.

Si ned at Chicago, in the county of Cook, and tate of Illinois, this 9th day of April,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4246770 *Jun 12, 1979Jan 27, 1981Metal Box LimitedApparatus for operating on hollow workpieces
US4331014 *Feb 29, 1980May 25, 1982Gulf & Western Manufacturing CompanyCan beading apparatus
U.S. Classification72/94, 72/103
International ClassificationB21D51/44, B21D51/38
Cooperative ClassificationB21D51/44
European ClassificationB21D51/44