US1782994A

US1782994A - Machine for beading and flanging metal barrels

Info

Publication number: US1782994A
Application number: US365993A
Authority: US
Inventors: Bror J Lindgren
Original assignee: Niagara Machine and Tool Works
Current assignee: Niagara Machine and Tool Works
Priority date: 1929-05-25
Filing date: 1929-05-25
Publication date: 1930-11-25
Anticipated expiration: 1947-11-25

Description

Nov. 25, 1930. a. J. LINDGEN 1,782,994

MACHINE FOR READING AND FLANGING METAL BARR 3L3 Filed May 25, 1929 a Shuts-Shut 1 Nov. 25; 1930. 51.1. LINDGREN 2,

MACHINE FOR BEADiNG AND FLANGING METAL BARRBLS Filed May 25, 1929 a Sheets-Sheet a Nov. 25, 1930. a. J. LINDGREN IA CHINE FOR BEADING AND FLANGING METAL BARRELS 8 Sheets-$heet 2':

Filed May 25, 1929 B. J. LINIDGREN; 1 5782394 Nov. 25, 1930.

MACHINE POR BIEEADING AND FLANGING IIBTAL BARRELS 8'Sheet's-Sheet 4 Filed May 25. 1929 "Hi llllumiw Nov. 25, 1930. B) J. Ll NDGREN MACHINE FOR BEADING AND FLANGING METAL BARRELS Filed May 25, 1929 8 Sheets-Sheet 5 Invenlor I Nov; 25, 1930. a J. LINDGREN 9 MACHINE FOR 53mins AND F'LANGING METAL BARRELS Filed May 25, 1929 8 Sheets-Shae; 6

Nov. 25, 1930. B. J. LINDGREN 1,732,994

' MACHINE FOR BEADING AND- FLANGTNG METAL BARRE-LS Filed May 25, 1929 8 Sheets-Sheet 7 Nov. 25, 1.930. V B. J. LINDGREN MACHINE FOR BEADING AND FLANGING MET AL hARRELS a Sheets-Shed 8 Filed May 25, 1929 Patented Nov. 25, 1930 u'N-rr'Ee *s ATEs P Tf'ENr oFF IcE 330R J. Lmneamr, or BurrALo, imw Your, ASSIGNOR rdmam mom]: r001. woaxs, or nn s-ram, rmw YORK, a coaronn'rron or NEW YQZB-K mourns r03 ammo Aim rnmome as; j

H V a ueatibi filed Ha es, This invention-relates to a machine for heading and flanglng metal barrels, and more particularly to a machine for rolling the beads and flanges into sheet metal beware;

n stiffening the shell and preparing it or the reception of barrel'heads.

shells for the purpose of roundin The principal-object of this invention is to provide a simple, durable, and eflicient machine which receives, automatically, beads and flanges, and discharges the barrel ,blanks in a continuous stream, thereby materially.

reducing the cost of this operation and the number of men required to bead and flange a quantity of barrels. y

' A further object is to provide such a machine which will bead and flange barrel blanks having substantial" variations in length, or which are not square attheir ends or whichv are badly out of round, the barrel. blanks, when discharged from the present-- machine, being of round form, properly provided" beaded intermediate the ends and with properly spaced end flanges.

* Another object isto provide such a machine in which the barrels are advanced with'a stepby-step movement and in which the means for holding the barrels are moved out of the path of. the barrel shells during the period in which the advancing mechanism is in operation and in which-the barrel holding means are locked in their operative position during the forming operation on the barrel.

Another aim-is to so'mount and actuate; the forming rolls carried bythe movable-barrel holding mechanism that upon completion of the inward movement of the holdin means, the rolls are moved against the barr A shell to form the same. 40

A. still further aim is to provide cam means for reliably maintaining the'synchronism Of T operations of the machine. a

. Still further purposes are to provide a durabl e machine which willstand up under the continuous services it is designed to give, which is com aratlvely simple considering the function w ich it performs, which is readily adjustable to difierent sizes of barrels and I which operates to flange and bead the barrels 5 uniformly.

1929. serial 1:. 365,993.

difl'erent diameters by the ready substitution of pairs of gears of different ratios.

In the accompanyin drawings: Figure 1 is a side -e evatio'nof a embodying my invention.

F gure 2 is'an end view thereof, viewed from the front or feeding end of the machine.

Figure 3 is a fragmentary top plan-view.

thereof.

Figure 4 is a position of the parts while being advanced.

Figure 5 is a view similar to Fig. 4 show- 1- inf; the position of the arts while the bar-" 1 re s e I are being operate on.

Figure .6 is a vertical transverse section-,' taken through the beading'rollson'line 6--6',- Fig. 4, and showing the position of the parts vertical section f taken on fine y-4, Fig. '3', and-showing the the barrels are} while the barrels are belng advanced.

-Figure 7 is a view similar to Fi 6 bet? showing the position of the parts w "Iethe barrels are being operated on,-this section being taken through the beading rolls. on'line 77 Fig. 5, through the Fig. 5 and showing the positionj' while the barrel is being flange taken on 1inej9- 9, Fig. 5and'show1ngthe' barrel being operated on b" the flanging rolls. fragmentary'view Figure 10 is, an-enlarg showing the manner in fwhich the flanging rolls turn over the ends of the barrel to videan'outturned flange.-

shown in the position in which it holds the rolls against thebarrels. a

Figure 12 is a'view similar to Fig. 11 but Figure 8.1s' a vertical transverse so flanging rolls takenien line ftheparts '1 Figure '9 1s a vertie '1 transverse section mi Figure 11 isa fragmentary longitudinal showing the cam in the position in whibh the forming rolls are retracted. Figure 13 is a fragmentary 1ong1tudma1 section taken on line 13-13, Fig. 3 and showing the cam which moves the carriages tosection taken on line 14-14,--Fi'g. 3 and showing a part of the. gear drive.

' ated in synchronism with the conveyer for Figure 15 is an enlarged view showing the manner in which the heading rolls cooperate in beading the barrel.

Similar characters of reference indicate like parts in the several figures of the draw-' ings. A

The barrel shell 20 produced by the machine comprises a cyhndrical sheet metal open ended body having its opposite ends turned out to provide flanges .21 at its opposite ends, and having a plurality of annular beads 22 rolled out from the sheet metal body to strengthen the barrel. The barrel shell s received as a plain cylindrical body and 1s successively acted on by cooperating rolls at difierent stations to head and flange the barrel.

In the machine shown, the barrel shell is first beaded and then flanged, but it is ob- VlOllS that these operations can be reversed.

It is also obvious that the invention can be practiced in connection with any cylindrical tbody to be provided with annular deformaions.

comprises a horizontal conveyer on which the barrels are placed with their axes parallel, a Geneva gear for advancing the barrels to successive slmi'lar positions two horizontally movable carriages arranged on opposite sides 'of the conveyer and having heads adapted to engage the ends of the barrels to center them relative to the forming rolls, a cam opermoving the carriages together each time the conveyer comes to rest, beading rolls mounted on ea'ch carriage and movable airiallg; therewith toenter the opposite ends of the barrel at one of its stations, a second pair of beading rolls mounted under the conveyer and movable transverselyinto operative relation w th said first beadin rolls, cam means for moving said last named ading rolls into operative relation with the first named beading rolls after the conveyer has stopped and sai heads have been moved inwardly to center the barrels, and a set of flanging rolls 1 mounted and actuated inthe same manner as said beadingfrolls to flange the barrels at another station.

Tlw barrel conveying qriecham'em the opposite ends of this frame 24 are two pairs of spaced arms 25 which are bolted to the frame 23, as shown in Fig 2. Each of these arms 25 is formed to provide upwardly extending supports 26 whichcarry cross bars 27 at their upper ends. These cross bars 27 can be of any 'suitable form and support two spaced longitudinal channel bars which form tracks 28 for the upper stretch of thecenveyerchain 29 and also support the barrels 20' as they are moved along by the upper stretch of the conveyer chain and insure their vertical alinement relative to the forming devices.

The front ends of the conveyer chains 29 pass around a pair of spaced channeled wheels 30 which are secured to a shaft 31 journaled at its ends in the ends of the front supporting arms 25, and the rear ends of these con-.

veyer driving wheels 32 are mounted on a conveyer drive shaftB i which is. journaled at its opposite ends in the outer ends of the rearwardly extending supporting arms 25.

, To move the barrels along the tracks 28 in spaced relation to one another, driving arms or wings 35 are provided which receive In its general organizatlon this invention the. barrels between them and compel the barrels to be intermittently advanced along the tracks 28 in response to the movement of the conveyer chains as hereinafter described. These driving arms are arranged st) that the driving arms of one chain are arranged opposite the driving arms of the other chain and each driving arm comprises an outwardly extending arm 36 which is 'suitably secured at its inner 'end to a link of the conveyer chain 29 and at its outer end carries a cross arm 31. The ends of the cross arms are preferably inclined so that when they are traversing the upper stretch of the conveyer chain, they form an inclined support for the opposite sides ofthe barrel shell carried therebetween. r

y In operation, the operator places each barrel shell 20 on the'front end ofthe conveyer chains 29 in advance of the rising conveymgarms 35. These arms move the barrel upwardly onto the tracks 28 along which it is conveyed to the rear end of the machine. As the conveyer arms .35, pass downwardly around the rear driving wheels 32, the finished barrel shells are released and roll from the machine. A

An intermittent or step-by-step movement isimp'arted to the conveyer chain by a Geneva gear 38, this gear being so designed that the step-by-step movement of the conveyer-chains brings the barrels .carried .thereby to sac- 'cessive stations. By means the forming devices for successively operating on the barrels can be arranged along the path of the barrels at their stations when the conveyer.

chain is not moving and'by' operating these forming devices during the period of nonmovement of the c'onveyer, each barrel will be operated on by the formmgdevices.

. This Geneva gear 38- includes the usual star wheel 39 which is mounted on the conveyer drive shaft 34 and has the usual indented .faces' 40 and radial slots 41. The star wheel- 39 is turned from the main drive shaft 42 by a slotted driving arm 43. ,This driving "'ary by the engagement .of its indented faces 40 with the periphery of a wheel'50 fixed on the main drive shaft 42. This wheel 'is provided with the usual recess 51 which re- 1 ceivesthe points ofthe star wheel 39 and v 7 permits the star wheel to be turned ,by thedriving arm 43, The star'wheel39 has four radial slots 41 and consequently it is turned once for every four: revolutions of the drive shaft 42 and its associate wheel 50, the mar wheel 39 being held stationaryduring the;

greater part of the revolution of the drive shaft. is advanced step-by-step to move the barrel shells 20 from station to station and during thegreater period the barrel shells are at rest and being operated on by theforming de- .the frame or bed of the machine-is, formed.

vices. v v

The barrel gayz'ng and centering mechanism In order to center each barrel'shell prop erly relative to the conveyer mechanism and in proper relation to the forming rolls which act upon opposite ends of the shell, gaging and "centering devices are provided w ich are preferably constructed as follows:

I The preliminary gagingi and centering of the barrelshells 20 is effected by two stationary gage plates'60? These gage .fplates rise from the crossbars 27 and are arranged on opposite sides'of the conveyer chains 29 so that in order to passbetween these gage pl tes,.the .barrel must be placed on the conveg er in centered relation thereto. On one side of the center ofthe conveyer,

. to provide, a fixed pedestal 63, and, as best shown in Fig. 9, on the opposite side of the conveyer, the frame or bed 23 carries a pair of transverse horizontal .tracks or rails 64 which support a movable pedestal 65. This movable pedestal is; ad'ustably movable on its rails 64 toward and rom the conveyer by means of a screw 66which, as shownin Fig.

of the bed 23.

By this means, the conveyer chain- 9, turns in a nut 67 formed on the under 1 side of the movable pedestal and is turned by a crank 68 which is arranged at one side Both'the fixed pedestal 63 and the movable pedestal fifiare formed toprovide a pair of horizontal transverse tracks 69 on which the shoes 70 of a pair-0f transversely movable carriages 71 and 72 rest, onecarriage being" ararnged at each side of the conveyer.

To hold these sho'es70 in engagement withthe tracks 67, rails 73 are bolted to the pedestals and overhang the shoes 70 as best shown in Iig. 1.

Each of thesecarriages 71 and 72 comprisesside walls 74,"a lower horizontal wall 75, intermediate vertical walls 76 spaced walls'74, an outer'end wall 77 and an inner end wall 78., The upper part of each car; riage is covered by a cover plate 79 which is from and extending parallel with the side i bolted to 'the jends, side and intermediate wallsof the carriage inany suitable manner.

Vertical, gaging and centering platlas '80 are secured to bpposing sides of the carriages 71 and 72 and are adapted to engage the ends of the barrel shells on the conveyer when the carriages are moved together for the purpose of centering the same relative to the forming devices. Each carriage carries two of these gaging plates 80, one being adapted to cooperate in centering the barrel during the beading operationat the beading station and the other cooperating with the barrel duringthe flanging operation at the flanging station. Each ofthese I gaging, plates is secured to a plurality'of outwardly extending supporting horizontal rods 81, these rods being slldingly receivedln bosses 82 on the carriage so that the plates are adjustable toward and from each other i .to permit ofithe gaging and centering of bara I rels of diderent heights. The plates are held in thelr adjusted position by set screws 8'31which are arranged in the bosses 82 and engage the sides of the supporting rods 81.

The means for reciprocating the two carriages 71 and 7 2 toward and from each-other while the'conveyer mechanism is at rest is preferably constructed as follows:

Asshown in Fig. 3 a cam'85 is mounted on themain drive shaft 42, this'cam having a cam groove 86 which is disposed so that I its salient and receding portions face in the direction. of the length of the drive shaft 42. In this cam groove 86 is arranged a roller '87 which'is mounted on the upper end of a rock arm 88. This rock arm, as shown' in Fig.13, is fixed to a rock shaft 89 suitably journaled' in the main frame, and at its other .end, this rock shaft carries a second rock arm 90. The rock arm 90 is connected by a link 91 with a rock-lever92, which is pivotally mounted at its lower end on the machine frame 23. As best shown in Fig. 9, this rock lever 92 swings transversely of the machine, and is substantially longer than the rock arm 90 which actuates it.

As best shown in Fig. 5, the rock lever 92 is relatively wide and at its upper end carries two swinging members 93 which are mounted on pivot pins 94. One of these swinging members 93 carries a rod 95 which extends in the direction of the carriage 71 and the other swinging member carries a similar rod v96 which extends in the direction of the opposite carriage 72. Each of these rods is threaded at its inner end and is secured to the respective swinging member 93 by means of two nuts 97 which, as bestshown in Fig. 9, permit of increasing or decreasing the effective length of the rods to vary the movement of the carriages.

At its outer end, the rod 95 is pivotally secured to an ear 98 projecting downwardly from the lower wall of the carriage 71, and the outer end of the other threaded rod 96 is connected to the lower end of a vertical rock beam 99, as best shown in Fig. 13. This beam is pivoted at its center to the machine frame for transverse swinging movement and at its upper end is connected by a link 991 with the front wall of the carriage 72.

It is apparent that each time that the main drive-shaft 42 is turned, the cam 85 is rotated and the roller 87 .is caused totraverse its cam groove 86. This cam groove imparts a transverse reciprocatory movement to the rock arm 88 which carries the roller 87 and also to the rock arm90 and rock lever 92 which are operatively connected with the rock arm 88. As the rock lever 92 is moved in the direction of the carriage 71, the rod 95 carried thereby operates to move this carriage outwardly or away from the conveyer and thebar'rel shells on the conveyer. At the same time, the threaded rod 96 connected to the rock lever 92 is moved inwardly and this movement-of the threaded rod 96 moves the lower end of the rock beam 99 inwardly. This movement of the rock beam 99- causes its outer end to swing outwardly and since the outer end of the rock beam 99- is connected to the carriage 7 2 by the link 991 this carriage is'also' moved outwardly. It therefore folf lowthat eachttime the main drive shaft 42 1s turned, the two carriages -are moved toward and from each other to center the bar rels on the conveyer relative to the forming devices. with relation to the conveyer that the inward movement of the carriages 71 and 7 2 follows the advance movement of the con 'veyer and. the outward movement of these The cam 85 is so formed and timed' The forming mechanism 7 In the machine shown in the drawings, the

- barrel shells are provided with the beads 22 at station A while the conveyer is at rest and while the barrel is centered by the first pair of movable gage plates 80 and is provided with the outturned flanges 21 at its opposite ends at station B, while the conveyer is again at rest and the barrel centered between the second pair of movable gage plates 80. It is obvious, however, that this sequence of operations can be reversed and hence this sequence is used for the purpose of illustration only.

Each carriage 71 and- 72 carries an upper beading roll 100, these rolls opposing each other and being arranged to enter the opposite ends of the barrel shell while the same is at rest at station A. As best shown in Figs. 6 and 7 each beading roll 100 is keyed on the end of a shaft 101 which shaft is journaled in a vertically adjustable bearing block 102 and is continuously rotated by a pinion 103 fixed to the outer end of the shaft 101. As

best shown in Fig. 11, the bearing block 102. i

which carries the beading roll shaft 101 is guided in vertical ways provided in the outer and intermediate walls 7 1 and 76 at the front end of the carriage and the vertical adjustment of each bearing block is effected by a pair of screws 104 which extend through the cover plate 7 9 and supporteach bearing block.

(lo-operating with each of these upper beading rolls is a vertically movable lower beading roll 106 which is also power driven and is moved upwardly against the under side of the rotating beading roll 100 as hereinaft-er described after the beading rolls 100 have entered the ends of the barrel and thereby corru'gate or bead the opposite ends of the shell. For this purpose, each upper beading roll 100 is provided with annular beads or 'corrugations 107 which cooperate with correspondin channels in each lower roll 106 so. that t e outwardly projecting beads 22 are provided at opposite ends of the barrel as best shown in Fig. 15.

- Ina similar manner each carriage carries an upper power driven flanging roll 108, the upper flanging rolls 108 of the two carriages being arranged axially in line and being arranged to enter the opposite ends of the barrelshell 20 while it is at rest at station B and held in a centered position by the second set of movable guide plates 80. In the same manner as the upper beadingrolls 100,'each upper flanging roll 108is keyed on the outer end of an upper flangingroll shaft'109, whi h shaft is journaled in a vertically adjustab le bearing block 110 and is continuously rotated by a pinion 111 fixed to the outer end of the v shaft 109 is guided in vertical ways provided in the outer and intermediate walls 74 and 7 6 at the rear endof the carriage and the vertiis alsdpower driven and moved upwardly against the under side of the rotating upper fianging roll 108 after the flanging rolls 108' have entered the ends of the barrel and thereby flange the opposite ends of the b'arrel out;

wardly.- For this purpose,.as best shown in 'Fig. 10, each upper flane'ing roll 168 is provided at its. inner end with an annular shoulder 114, and the corresponding lower roll is tapered and is adapted tobe moved against the body of the upper Hanging roll and in close proximitv to the shoulder 114 so that the flange 21 is formed'between "the opposing faces of the lower flanging-r'oll and the shoulder 114. By reason ofthfe continuous rota-. tion of both flangingiolls; the. barrel is i turned so that theflange; 21 is formed on all sides.

; After the carriages 71 and 72 have been movedtogether bv the cam 85, and the upper tion to the upper rolls so that thebarrels are I beading rolls 1001 and hanging -rolls 108 have entered the barrels, the lower beading rolls 106 and thellowbr Hanging rolls 113 are moved upwardlv into cooperating relabeaded and flanged and -';"af terf.this operation are retracted prior to the retraction of the and 72; p for riving the lower carriages. Both the lower heading and flanging rolls are raised at the same time so that r the barrel at station B is being flanged. This while the barrel at station A is being beaded,

mechanism is preferably cbnstructed as fol- I lows:,

A cam 115 is mounted on'themain drive shaft and is'composed of'two parts 116 and 1 17, these twoparts being. similarly shaped andoffset-.circumferentially'relative to one another. Under this cam 115 is mounted a.

" swinging cradle 118 which issupported by V a pair of swinging links 119 so that the cradle is capable [of reciprocating lon 'tudinally of the machine as best shown in Fi 11=13. At its front end' this cradle car roller this means the cradle is positively recipro-- cured a link 123. The other end of this link l is connected with a rock arm 124 fixed to a transverse rock shaft 125. This rock shaft 125, as shown in Fi 9 is journaled in the machine bed 23 an extends substantially across the entire width of the bed, and is arranged below each of the bearing blocks 110 supporting the lower vertically movable flanging rolls shaft 126 on which the lower vertically movable flanging rolls 113 are fixed.

This lower vertically movable flangi'ng rolls shaft 126 extends thewid h of the machine and is supported at its ends in vertically movable bearmg blocks 127 carrying bearings 128 in which the lower flanging rolls shaft 126 turns. Thesebearing blocks supporting the lower flanging rolls shaft may be of any suitable construction and are guided in their vertical 'movement by vertical Ways 129 formed ,on the fixed and movable pedestals 63 and which support the carriages 71 and 72, as shown in Fig. 11. ()n the under side of each of these vertically movable lower llanging rolls bearing blocks 127 a pair of ears andilowered so as to move the lower flanging' arolls shaft 126 and the lower flanging'rolls carriedthereby into and out of o erative relation with the upper inwar y movable flanging rolls 108 carried b the carriages 71 flangin rolls 113 is derived from a pinion 132 which is keyed to one end of the lower flan rolls shaft 126and is power driven as hereinafter described.

In a similar manner the lower badin rolls 106 are moved vertically into and out o lo 'ative relation to the u' pen-{inwardly Per ad thebarrel I movable beading rolls 100 to v shell when it is at rest at statiorr A.

For this purpose the; (lower vertlcally -movable beading rolls 100 are fixed to a lower beading rolls shaft 133, which,

as best shown in Fig.6, extends the full width of the machin'eQ-beds" This lower beading-{rolls shaft 'is' journaled in four bearings 134 which are jmo'unted in a pair of ve l; lally movable bearing blocks 135, one of th' bearing blocks 135, being arranged at eac dc of the machine. These bearing blocks 135 are guided for vertical movement in ways 136 provided at the front end of the fixedjand movablepedestals 63 and 65 and each is provided on its under side with, a pair of ears 137 to which are pivotally connected links 138. These links are pivotally con nected at their lower ends to rock arms 139 which are mounted on a transverse rock shaft 140. -At one end this rock shaft has another rock arm 141 secured thereto, and, as best shown in'Fig. 11, this rock arm 141 is connected by a link 142 to the rock arm 124 on the rock shaft 125 which raises and lowers the lower flanging rolls. 1

It is therefore apparent that when the rock shaft 125 is rocked in response to the rotation of the cam 115 to raise and lower the lower flanging rolls 113 into and out of operative relation to the upper flanging rolls 108, the lower beading rolls 106 will likewise be moved into and out of operative relation with the upper inwardly moving beading rolls 100 through the rock arm 124 on the rock shaft 125, link 142,- rock arm 141, rock shaft 140,

rock arms 139 on the rock shaft 140 the links 138 which connect the rock arms 139 with the bearing blocks 135 supporting the lower beading rolls shaft 133. By this means both the lower vertically movable beading rolls 106 and the lower vertically movable flangi'ng rolls 113 are simultaneously moved up into operative relation with the corresponding upper rolls, this movement occurring after the carriages 71 and 72 have moved inwardly and carried the upper rolls to their operative positions, and the conveyer has brought the barrel shells to stations A and B in proper position to be beaded and flanged, respectively.

In order to insure the barrel blanks being properly positioned at stations A and B while they are beingbeaded and flanged and also to round the same if they are badly out of round, adjustable retaining rollers are provided which engage the inside and outside of each barrelat each station and are preferably constructed as follows: 1

Each of the vertical plates 80 which center the barrel shells on the conveyer preparatory to their being formed with beads and flan es carries a pair of adjustable rollers 144 which project inwardly toward the conveyer and are mounted in' any suitable manner so as to be adjustable 'toward and from the upper forming rolls carried by the carriages 71 and 72. As best shown in Fig. 5, when the barrel shells are moved to the stations A and B by the conveyer, and the carriages 71 and 72 move inwardly, the supporting rollers 144 carried by the centering plates 80 enter the barrel shell and are arranged along the inner wall of the shell so as to hold the barrel in proper position while it is being formed by the forming rolls and also serve to round up the barrels while they are being turned. By mounting each of the rollers 144 so that each is adjustably movable toward and from the forming roll with which it is associated, the rollers 144 can be adapted to be used in connection with barrels of varying diameters.

The barrel shell while being formed at each station A and B is also supported exteriorly by supporting and guiding rollers 145. As best shown in Figs. 4 and 5, a pair of these rollers 145 is provided for each pair of forming rolls, each pair of rollers being arranged at opposite sides of the lower forming roll with which it is associated, and each roller being mounted at the upper end of an adj ustable swinging arm146. Each of these swinging arms 146 is pivotally secured at its lower end to a part of the vertically movable hearing blocks 127, 135 which carry the lower vertically movable forming

rolls shafts

126, 133, so that when the lower forming rolls are moved upwardly to their operative positions, the rollers 145 are likewise moved up to engage the outside of the barrel shell as shown in Fig. 5,-and thereby hold the barrel shells against the inside rollers 144 and positively hold the barrel shell in proper position for the forming operation and round up the barrel shells. Each of the arms 146 is secured intermediate its ends to its support by a slot and bolt connection indicated at 147 so that the arms 146 can be adjustably moved toward and from the forming rolls and hence adapt the positioning rollers carried thereby to barrel shells of different diameters.

It is apparent that while the barrel shells are being operated on by the beading and flanging rolls, the carriages 71 and 72 which carry the upper flanging rolls must be held against outward movement since if they move outwardly, or have any movement, the upper forming rolls move out of position and operate imperfectly in beading or flanging the barrel. Special means for locking the carriages in their inner or operative position are therefore provided, which, when the car riages 71 and 72 and forming rolls have been moved to their operative positions, positively lock the carriages 71 and 72 in this position. These means are preferably constructed as follows 2 Formed on the upper side of each of the vertically moving bearing blocks 127 and 135 which respectively carry the lower flanging rolls shaft 126 and the lower beading rolls shaft 133 and are moved upwardly each time the carriages 71 and 72 are moved inwardly and outwardly, is a latch 148. This latch is in the form of a rectangular metal block or lug formed on the upper side of the bearing blocks 127 and 135. 'When these bearing blocks move upwardly and the carriages 71 148 in the slots 149 positively prevents inward or outward movement of the carriages and firmly holds the upper forming rolls car- Red by the carriages in their operative posi- ,gtions.

The dm'ving mechanism diameters and is preferably constructed as follows: 1

The numeral 150; represents an electric motor which issuitably mounted at one side.

of the bed or frame 23 of the machine and carries a driving pinion 151 which drives a gear wheel 152. This gear wheel 152 is keyed to ashaft 153 which is suitably journ-aled in the machine frame and has keyed thereto a pinion 154. This pinion 154, as best shown in Fig. 14, meshes with a gear 155 which gear 155 is fast to a shaft 156. This shaft is journaled in bearings carried by the fixed and movable pedestals 63 and 65 and extends across ithe machine, the opposite endsof this shaft carrying elongated pinions 157, as best shown in Fig. 9. Eachcarriage 71 and 72 carries three idlers 158, the idlers on the carriage 71 connecting the elongated pinion 157 and the

pinions

103 and 111, which last named pinions arerespe'ctivelymounted on the -upper beading roll shaft 101 and the upper fianging roll shaft 109 of the carriage 71 and rotate thebeading and flanging rolls. In a I shaft 1010f this carriage, and with the upper fla'nging roll shaft 109, thereby rotating the t the elongated plmons 157 with the gear 132 desired i g of the main (hive shaft.

similar manner, the idlers 158 on the carriage 72 connect the elongated driving pinion 15 with the pinion 103 onjhe upper beading ro heading and fiangin grolls-carried by this car'- riage 72. It will be observed that by reason of the elongation of the pinions-157, 157, when thecarriages 71 and 72 are reciprocated toward and from oneanother, the idlers-158 are always in engagement therewith andv hence the b'e'adin and flanging rolls are continuously rotated:

Apair of idlers 159 also meshes with the elongated pinions 157 at each side of the ma: chine, one of these idlers connecting one of mounted-on the end of the lower. vertically movablefianging rolls shaft 126, and the th'e'lower forming

rolls shafts

126 and 133 to-their'operative' and inoperative positions is relatively slight and doesnot disturb the connection'of the driving gears carried thereotheridler 159 connecting this elongated pinion 157 with the gear 160 moun'tedon the end of the lowervertically movable beading rolls shaft 133. The vertical movement of by with the motor.

The power for driving the main shaft 42 which a'ct'uates the cams which move]: the carriages back and forth and also the;

lower formingirollsiup and-down and also the Geneva ear drive for the conveyer is arranged as ollows:

Also meshing with the driving pinion 154 1s a carrying a pinion 163. This pinion 163 meshes wlth a gear 164 which is mounted gear 161 which is fast to a shaft 162 on a shaft 165. On the outer end of the shaft 165 is keyed a small pinion 166 which meshes with a large gear 167, keyed to the outer end of themain drive shaft 42. It is therefore 'ap arent thatthemain drive shaft is in direct an continuous connection with the motor 150 'througha train of gears, and-hence is conpositions, it is apparent that by varying the speed of the driving shaft 42 that the machine can be varied to operate properly on different sizes of barrel shells, it being undesirable to rotate the barrel shells by the forming rolls more than one'complete revolution of the "barrel shell.

For example, with the barrels as shown the rotation of the heading and fia-nging rolls turns the barrels one complete revolution and the bea'ding'and flanging rolls are then withdrawn and the conveyer advanced. ,If a barrel shell twice the circum ference were being beaded or flanged, the

heading or flanging rolls would bead or flange half the barrel shell and then the bead ng and fla-nging rolls withdrawn and the barrel advanced. It is obvious that to remedy this defect it is necessary toslow up the speed or timing of the main drive shaft sons to permit of the larger barrel shell being completely beaded or flanged before the form ng devices are withdrawn. This can be accomplished by replacing the gear 167 on the driveshaft 42 and its driving pinion 166 by}? gear and pinion having the proper ratio to effect the Operation 1 r The operation of the b'eadingand flanging the conveyer arms or flights 35? on 'the upper :or feedingstretch of the conveyer. f

onthe wheel 30, as shown in Fig.1. The bar'- ,relshells are so fed in a, continuous stream, a barrel. shellbeing arranged between each of i The motor 150, having been energized thereupon drives the main shaft 42 through c the train of gears comprising the pinion 151 on the motor shaft, gear 152, pinion 154, gear 161, pinion 163, gear 164 and interchangeable pinion and

gear

166 and 167. The main drive shaft 42 drives the Geneva gear 38 at the opposite side of the machine, the main drive shaft 42 turning the driving arm 43 four times to every revolution of the driven or star wheel 39 of the Geneva gear. The star wheel 39 of the Geneva gear is carried by the conveyer drive shaft 34 on which the driving wheels 32 of the two conveyer chains 29 which carry the barrel shells along their upper stretches by means of the "wings or flights 35. This Geneva gear drives the conveyer chains 29 with a step-by-step motion, the steps being such as to bring each barrel shell to rest first at the stationA and then at the station B. While the machine is in operation, the motor 150 also rotates the upper forming rolls comprising the upper beading rolls 100 and the upper flanging rolls 108' carried by the carriages 71 and 72, and also the lower beading rolls 106 and the lower flanging rolls 113 cooperating with the upper rolls. The upper beading and flanging rolls-are driven through a train of gears comprising the pinion 151 on i 30 the motor shaft, gear 152, pinion 154, gear 155,

elongated pinions

157, 157 mounted at opposite ends of the shaft 156, the two trains of idlers 158 at opposite sides of the machine on the carriages 71 and 72, and the two pairs :5 of

pinions

103 and 111 which are respectively secured to the upper beading roll shafts 101 and the upper flanging roll shafts 109, the beading rolls 100 and the flanging rolls 108 being mounted at the inner ends of these 4 shafts. The lower beading and flanging rolls i106 'and 113 are also continuously driven through a train of gearscomprising the pinion.151 on the motor shaft, gear 152, pinion 154, gear 155, elongated pinion 157, pair of,

4.5 idlers 159, and pinions 160 and 132 mounted on the ends of the lower beading rolls shaft 133 and lower flanging rolls shaft 126 which carrythe lower beading rolls 106 and the lower. flanging rolls 113, respectively. The

upper and lower forming rolls arerotated in opposite directions at the same speed so that when the opposite ends of the barrels are disposed between either the beadingjifir flanging rolls, the same is rotated and lpeaded and flanged.

' In order to center the barrel shells 20 on the colivgeyer and also move the upper beading and ii'ahging rolls 100 and 10 8 to their opera- 'tive positions, the carriages 71 and 72 which carry the centering plates are moved together in the following manner:

Thecam wheel on the main drive shaft 42 rocks the arm 88 transversely of the machine, this movement of the rock arm rock?- 65 ing the ,rock shaft 89, rock arm 90, link arm 92 reciprocates the carriage 71 through the direct connection of the adjustable rod 95, and at the same time moves the carriage 72 in the opposite direction through the rod 96, rock beam 99 and link 991 which linkis directly connected with the carriage 72. By means of the rock beam 99 the carriage 72 is moved in the opposite direction to the carriage 71, i. e., the carriages are moved toward and from one anot ,r'.

After thecarriages 71 and 72 carrying the upper forming rolls have been moved together, the lower forming rolls are moved up into operative relation to the upper, forming rolls in the following manner:

The cam 115 on the main drive shaft 42 rocks the cradle 118' longitudinally of the machine, this movement, through the links 123 and 142 rocking the rockarms 141 and 124 and the

rock shafts

140 and 125. The rocking movement of the rock shaft 140 rocks the arms 139 carried thereby and raises and lowers the links 138 which connect these last named rock arms with the bearing blocks 135 i and rock arm 92. The movement of the rock supportingthe lower beading rolls shaft 133 and thereby moves the lower beading rolls 106 into and out of operative relation with the upper beading rolls 100 In a similar manher, the rocking of the rock shaft 125 moves the lower flanging rolls 113 into and out of operative relation with the upper flanging -rolls 108 through the rock arms. 26 on the rock shaft 125, and the links 130 which connect these rock arms with the vertically movable bearing blocks 127 which carry thelower flanging rolls shaft 126.

As the lower bearing blocks 127 and 135 are moved upwardly by the cam 115 as just described, the locking'lugs 148 carried thereby enter the openings 149 in the carriages 71 and 72 which have been moved inwardly and positivly hold these carriages a'gainst either inward and outward movement, thereby insuring the maintenance of the positionof the upper forming rolls to properly bead and flange the barrel shells.

The movement of this mechanism is so syn chronized that the Geneva gear 38 first advances the conveyer, the cam 85 then moves the carriages 71 and 72 together to center thebarrel shells so on the conveyer and also bring the upper beading rolls 100 and the upper flanging rolls 108 to their operative positions, the cam 115 then moves the lower beading rolls 106 and lower flanging rolls 113 into operative relation to the upper beading and flanging rolls, respectively, the cam 115 then lowers the lower be'ading'rolls 106 and the lower flangingrolls to their inoperative positions, the cam 85 then withdraws the carriages 71 and 72 outwardly and the Geneva gear 38 advances the conveyer another step. By

this means the barrel shells 20 are successive- 1y beaded and flanged as they are carried along by the conveyer.

The machine is adjustable to diiferent sizes of barrel shells by means of the various adjustments described, and the synchronization of the forming rolls to the advancing and controlling mechanism is varied by the simple substitution of gears of the ratio to produce the desired result for the gear 167 and pinion 166. v

The barrels are also held in proper relation to'both the beading and flanging rolls by the adjustable rollers 144 and 145 which engage both the inside and the outside of each end of each barrel being beaded or flanged and also serve to round up the barrel shell as it is turned and insure a perfectly round headed and flanged product.

As a whole this invention provides a barrel beading and fianging machine which is comparatively simple considering the function which it performs, it operates reliably and efliciently to properly bead and flange barrel shells fed in a'continuous stream, it requires no attention beyond the feeding and removing of the barrel blanks, it will properly bead and flange barrel shells regardless of substantial variations in the same, it is easily adjustable to vdifi'erent: sizes of barrels and is not liable to get out of order under constant use. p

I claim asmy invention:

1. In a machine of the character described, two forming rolls, means for moving said rolls relative to one another, an endless conveyerbelt adapted to receive barrel shells, step-by-step means moving said belt to bring the barrel shells successively into osition 7 means. for moving said last named between said rolls, a second pair of ormin rolls arranged-on the opposite side of said barrel from said first mentioned rolls, and means synchronized with said step-by-step pair of rolls toward said first named pair of rolls to form that portion of the barrel shell disposed therebetween,

a machine ofthe character described, a p of cooperatir i" "forming rolls, an endless conveyer belt a apted to receive barrel shells, step by-step means moving said belt to bring the barrel shells successively into positionbetween said rolls, means synchronized with said step-by step meansdor movfingone of said rolls axially into operative Yes - relation to said barrel and means for moving the other forming roll laterally toward said axially movable forming roll thereby to form that portion of the barrel disposed between said rolls.

3. In a machine of the character described, a conveyer for conveying a barrel shell sidewise, a carriage arranged at each side of the path of'the barrel shells, means for moving said carriages toward and from one another, a forming roll carried by each of said carriages, said rolls being adapted to enter the ends of said barrel shells upon inward move,

ment of said carriages, a second pair of forming rolls mounted below the path of said barshafts and adapted to enter the ends of said barrel shells upon inward movement of said carriages, a pinion carried by each shaft, a relatively long continuously rotating gear mounted adjacent each of said carriages and meshing with said pinion whereby in all positions of said carriages said forming rolls are rotated, a second pair of forming rolls mounted below the path of said barrels, and means for moving said last named forming rolls laterally toward the forming rolls carried by said carriages upon completion of the inward movement of said carriages.

5. In a machine of the character described, a conveyer for conveying barrel shells sidewise, a Fair 0t carriages arranged at opposite sides 0 the path of the barrel shells, means for moving said carriages toward and from one-another, a bearin lock carried by each of said carriages, a s aft journaled in said bearing block and extending parallel to the line of movement of said carriage, forming rolls'carried at the opposing ends of said shafts, and adapted to enter the ends ofsaid barrel shells upon inward movement of said carriages, means for adjusting the position of 'upon completion of the inward movement of said carriages and means for rotating one of said forming rolls to revolve the barrel shell.

6. In a'machine of the character described, a conveyer for conveying barrel shells sidewise and in spaced relation, a carriage arranged at each side of the path of said barrel shells, means for moving said carriages toward and from one another, a centering member carried at the opposing sides of each of said carriages and adapted to. engage the ends of the barrel shells to center the same a pair of rollers carried by each of said centering members and adapted to enter the ends'of the barrel shells to limit the lateral movement of said barrel shells and round up said barrel shells, a forming roll carried by eachof said Eli) carriages, said forming rolls being adapted to enter the ends of said barrels upon inward movement of said carriages, a second pair of forming rolls mounted below the path of said barrels, and means for moving said last named forming rolls laterally toward the forming rolls carried by said carriages upon the completion of the inward movement of said carriages.

7 In a machine of the character described, a conveyer for conveying barrel shells sidewise and in spaced relation, a carriage arranged at each side of the path of said barrel shells, means for moving said carriages toward and from one another, a centering member carried at the opposing sides of each of said carriages and adapted to engage the ends of the barrel shells to center the same, a freely rotatable roller carried by each of said centering members and adapted to en ter the ends of said barrel shells upon inward movement of said carriages, a formin roll carried by each of said carriages, said orming rolls being adapted to enter theends of said barrel shells upon inward movement of said carriages, a second pair of forming rolls mounted below the path of said barrels, means for moving said last named forming rolls laterally toward and from the formingrolls carried by said carriages upon the com pletion of the inward movement of said carriages to deform the parts of the barrel shell interposed between said rolls, and a second freely rotatable roller movable with said laterally movable forming roll, said last named roller being arranged to move into cooperai tive relation to said first named roller tohold the barrel shells in prnper position and round up said barrel shells.

8. In a machine. of the character described,

a conveyer for conveying barrel shells sidewise and in spaced relation, a carriage arranged at each side of the path of said barrel shells, means for moving said carriages toward and from one another, a centering member carried at the opposing sides of each of said carriages and adapted to engage the ends of the barrel shells to center the same, a an of freely rotatable rollers carried by eac of said centering members, said rollers being adapted to enter the ends of said barrel shells upon inward movement of said carriages, .a forming roll carried by each of said carriages intermediate said rollers, said forming rolls being adapted to'enter the ends of said barrel shells upon inward movement of said carriages, a second pair of forming rolls mounted below the path of said barrels, means forimoving said last named forming rolls laterally toward and from the forming rolls carried by 'said carriages upon the completion of the inward movement of said carriages terposed between said rolls, a second pair of erally movable forming rolls and arranged on opposite sides thereof, said last named rollers being arranged to move into cooperative relation to said first named pair of rollers to hold the barrel shells in proper position and to round up said barrel shells.

9. In a machine of the character described, a conveyer for conveying barrel shells sidewise, a carriage arranged at each side of the path of the barrel shells, means for moving said carriages toward and from one another, a forming roll carried by each of said carriages, said rolls being adapted to enter the ends of said barrel shells upon inward move ment of said carriages, a second pair of forming rolls mounted below the path of said barrel shells, and means for moving said last named forming rolls laterally toward the forming rolls carried by said carriages upon the completion of the inward movement of said carriages, plates carried at the opposing sides of said carriages and adapted to engage the ends of the barrel shells to center the same and means for adjustably moving said plates toward and from said carriages.

10. In a machine of the character described, a conveyer for conveying barrel shells sidewise, a carriage arranged at one side of the path of the barrel shells, means for moving said carriage toward and from said conveyer, a forming device carried by said carriage and adapted to act on the barrel shells on said conveyer upon completion of the movement thereof toward said conveyer, latch means for holding said carriage against movement upon the completion of the movement thereof toward said conveyer and means for releasing said latching means upon completion of the forming operation on said barrel shell.

11. In a machine of the character described, a conveyer for conveyin barrel shells sidewise, a carriage arranged at one side of the path of the barrel shells on said conveyer, means for moving said carriage to ward'and from said conveyer, a forming roll carried by said carriage and adapted to enter the barrel shells upon movement of said carriage toward said conveyer, a second forming roll mounted below the path of said barrels, means for moving said last named forming roll toward the forming roll carried by said freely rotatable rollers movable with said lat-scribed, a conveyer for conveying barrel on opposite sides of the path of the barrel shells onsaid conveyer, means for moving said carriages toward and from one another, a forming roll carried by each-of said carriages and adapted toenter the ends of the barrel shells upon inward movement of said carriages, a pair of forming rolls mounted below said conveyer, a bearing block rotatably supporting each of said last named forming rolls, and means for moving said bearing blocks vertically upon completion of the inward movement of said carriages to move said last named forming rolls into operative relation to the forming rolls on said carriage's, each of said bearing blocks being arranged below one of the carriages and a cooperating latch and shoulder provided on each of said bearing blocks and carriages whereby upon upward movement of said bearing blocks, said carriage is latched against movement.

13. In a machine of the character described, a pair of forming devices adapt.-

ed to engage the inner and outer sides of a barrel shell, an endless conveyer belt adapted to receive barrel shells, step-by-step means moving said belt to bring the barrel shells successively into position between said rolls, and cam means synchronized with said stepby-step means for positively m'oving said forming devices into and out of operative relation with one another.

i 14. In a machine, of the character described, a conveyer for conveying barrel shells sidewise, a pairof cooperating forming devices arranged alongside of the path of the barrel shells on said conveyer, a cam shaft, means for drivingsaid cam shaft, a cam mounted on said cam shaft and adapted to move one of said forming devices to its operative position, a second cam mounted on said cam shaft and moving the other forming device to its operative position, and means operatively connecting said cam shaft and said conveyer, whereby upon continuous rotary movement of said cam shaft, a step-by-step movement is imparted to said conveyer.

15. In a machine of the character described, a conveyer for conveying barrel shells, a pair of cooperating forming devices arrangedralon g the path of the barrel shells on said conveyer, a cam shaft, means for continuously turning said cam shaft, means for advancing said conveyer step-by-step through motion derived from said cam shaft, cam means carried by-=said cam shaft, and means for moving said forming devices into and out of operative relation to a barrel on said conveyer through motion derived from said cam means, said cam means being adapted to move said forming'devices into operative relation tosaid barrel'on completion of a forward step a a of said conveyer and being adapted to withdraw said forming devices immediately preshells sidewise,

forward step of said consaid star wheel and conveyer are advanced a predetermined distance and held at rest a definite length of time, cam means carried by said cam shaft and adapted to move said forming devices into and out of operative relation with a barrel carried by said conveyer, said cam means being adapted to move said forming devices into and out of'operative relation to said barrel during the period of rest of the conveyer.

17. In a machine of the character described, a conveyer for conveying barrel shells sidewise, a longitudinally movable forming roll arranged at one side of said conveyer and adapted to enter the barrel shells, a laterally movable forming. roll arranged adjacent said conveyer and movable toward said longitudr,

nall movable forming roll to engage the wall of t e barrel shells the'rebetween, means for rotating at least one of said forming rolls to revolve the barrel shell, means for advancing said conveyer to place the barrel shells successively in operative relation to said forming rolls, and means synchronized with said conveyer advancing mechanism to there after move said longitudinally movable forming roll to its operative position and thereafter move said laterally movable forming roll into its operative position. 18, In a machine of the character described, an endless conveyer for conveying barrel forming roll arranged at one side of said conveyer and adapted to enter the barrel shells, ala-terally movable forming roll ar- -ranged adjacent said conveyer and movable toward and from. said longitudinally movable forming roll to engage the wall of the barrel shell arranged therebetween, means for roforming devices arranged along the a longitudinally movable tating at least one of said forming rolls to revolve the barrel, means foradvancing the conveyer step-by-step to successively position each barrel relatlve to said forming rolls and means synchronized with said'conveyersuccessively advancing mechanism to movev said longitudinally movable forming roll-to its operative position,

tion,withdraw said laterally movable form-' ing roll and withdraw the: longitudinally movable forming roll beforethe conveyer is again advanced.

move said laterally movable forming roll to its operative posi- 19, In a machine of the character described, a cam shaft, means for driving said cam shaft, an endless conveyer for conveying barrel shells sidewise, means for imparting a step-by-step movement to said conveyor through motion derived from said cam shaft, a longitudinally movable forming roll arranged at one side of said conveyer and adapted to enter the barrel shells thereon, a cam on said cam shaft for moving said forming roll into and out of operative position, a laterally movable forming roll arranged adjacent said conveyer and movable toward and from said longitudinally movable forming roll to engage the wall of the barrel shell therebetween, a second cam on said cam shaft for moving said laterally movable forming roll into and out of its operative position, and means for rotating at least one of said forming rolls to revolve the barrel shell, said cam being arranged to move successively said longitudinally movable forming roll to its operative position, move said laterally movable forming roll to its operative position, withdraw said laterally movable forming roll, to withdraw said longitudinally movable forming roll during each period that the conveyer is at rest.

20. In a machine of the character described, a conveyer for advancing barrel shells, a pair of forming rolls movable into operative relation to the barrel shells on said conveyer, means for advancing said conveyer step-by-step to position successively said barrel shells relative to said forming rolls, means synchronized with said conveyer advancing means to move said forming rolls into and out of operative positions while said conveyer is at rest, means for continuously rotating said forming rolls to revolve the barrel shell therebetween and means for varying the relative speed of said rolls and said means for moving said rolls into and out of their operative positions.

21. In a machine of the character dcscribed, a motor, a shaft driven bysaid motor, a conveyer for advancing barrel shells sidewise a palr of forming rolls arranged ad acient said conveyer, means for advancing said conveyer step-by-step through motion derived from said shaft to position the bar rel shells successively relative to said formingrolls, means actuated through 'motion derived from said shaft" f':."'l, moving said forming rolls into and out oie perative rel tion to said positioned barrel shell while said" conveyer is at rest, means actuated by said motor to rotate at least one of'said forming rolls and revolve the barrel. therebetween,

and meansfor varying the relative speed of said last named means and said shaft.

22.111 8. machine of the character described, a' camshaft, a'motor, a. train of gears between saidmotor and said cam shaft,

two of the gears of said train offgears avsaeea being removable to permit of varying the speed at which said cam shaft is driven by the substitution of other gears of different ratios, an endless conveyer adapted to convey barrel shells sidewise, means for imparting a step-by-step motion to said conveyer, a forming roll movable longitudinally into the barrel shells on said conveyer, a cam on said cam shaft, means actuated by said cam for moving said forming roll into one of the barrels on said conveyer when said conveyer is at rest, a laterallylmovable forming roll movable toward and from said longitudinally movable forming roll, a second cam on said cam shaft, means for moving said laterally movable forming roll toward said longitudinally movable forming roll after said longitudinally movable forming roll is moved to its operative position, and a train of gears for continuously rotating at least one of said forming rolls through motion derived from said motor.

23. In a machine of the character de scribed, a conveyer for advancing barrel shells sidewise, a cam shaft,*me ans for driving said cam shaft, means for advancing said conveyer step-by-step through motion derived from said cam shaft, a longitudinally movable forming roll arranged at each side of said conveyer, means actuated by said cam shaft for moving said forming rolls into the opposite ends of a barrel shell on said conveyer while said conveyer is at rest, alaterally movable forming rolls shaft arranged below ,said longitudinally movable forming rolls, a pair of lower forming rolls mounted on said lower forming rolls shaft and movable into operative relation to said longitudinally movable forming rolls, means for continuously rotating at least one pair of said forming rolls, and means for moving said lower forming rolls toward and from said'longitudinally movable forming rolls comprising a vertically movable bearing block supporting said lower forming rolls shaft, a cam on said cam shaft and means operatively connecting said cam and said bearing block to raise and lower said bearing block.

24.In a machine of the character described, a conveyer for advancing barrel shells sidewise,a cam shaft, means for drivin said cam shaft, means for advancing said conveyer step-by-step through motion derived from said fam shaft, a longitudi nally movable forming roll arranged at each side of said conveyer, means actuated by said cam shaft for moving said forming rolls into the opposite ends of a barrel shell on said conveyer while s'aid conveyer is at rest,