US699843A

US699843A - Machine for end-seaming sheet-metal bodies.

Info

Publication number: US699843A
Application number: US5578701A
Authority: US
Inventors: William J Kenny
Original assignee: WILLIAM S CUMMING
Current assignee: WILLIAM S CUMMING
Priority date: 1901-04-13
Filing date: 1901-04-13
Publication date: 1902-05-13
Anticipated expiration: 1919-05-13

Description

No.v 699,843. Patented May I3, [902.

J. KENNY. MACHINE FOR 'END SEMING SHEET METAL BDIES.

7 Sheets-Sheet (N0 Modal.)

No. 699,843. Patented May I3, |902.-

- W. J. KENNY.

MACHINE FOR END SEAMING SHEET METAL BODIES.

` (Application led Apr. 13, 1901.)

(no mouel.) 7 sheets-sheet' 2.

lafy

(110 I falo gi f 7 J1 'y I i i d l] 3 13.93"? .la

jf---f- .14

C 1l 11 C a g3 @i we 9594 Jf .I ff W 05 0" U 1 @f .i 1

M /B 7iL Wj f 12h Wzefwew Z wf/2507.1* 74,2! aia any W M No. 699,843. Patented may la, |9o2-.

w. J. KENNY.

MACHINE FOB END SEAMING SHEET METAL BODIES.

(Applica. led A 13 1901 I. n (No Model.) l 7 Sheets-Sheet 3 V i ,f Cil umu. wub-Immun, u. c.

Patented May I3, |902. W. J. KENNY.

MACHINE EUR END SEAMING SHEET METAL BODIES.

(Application led Apr 9 1 (No Modal.)

"lllllllll mlm Il /l fr WITHIN! L' Illlllllll N0. 699,843. Patented May.|3, |902. W. J. KENNY.

MACHINE FOR END SEAMING SHEET METAL BOD|ES.

(Appliation led Apr. 13, 1901.) (Nu Model.) 7 Shpeis-Sheet 5.

3 96 @gli gif 93 gw Patented May I3, |902.

7 Sheets-Sheet 6,

W. J. KENNY.

MACHINE FR END SEAMING SHEET METAL BODIES.

(Applicatinn led Apr. 13. 1901.)

No.v 699,843.

(No Model.)

zamemz No. 699,843. Patented May I3, |902.

. w. J. KENNY.

MACHINE FR END SEAMING SHEET METAL BODIES.

(Application .led Apr. 13,. 1901.) (H o M n d e l 7 Sheets-Sheet 7.

Unitime Strains Farnnr rrrcn.

`VILLIAM .I. KENNY, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO XVILLIAM S. CUMMING, OF CHICAGO, ILLINOIS.

MACHINE FOR END-SEAIVHNG SHEET-METAL BODIES.

sri-:einsamen forming part of Letters raten No. 699,843, dated May 1e, 1902. Application tiled April 13, 19t-ll.. Serial No. 55,787. (No model.)

To @ZZ whom it Duty concern,.-

Be it known that I, WILLIAM J. KENNY, of Chicago, in the county of `Cook and State of Illinois, have invented certain new and useful Improvements in Machines for End-Seam,- ing Sheet-Metal Bodies; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to a novel machine employed in manufacturing cans, pails, or similar sheet-metal bodies.

The invention relates primarily to a novel device for uniting the body-Wall with the bottom plate by means of a seam formed by folding the margin of the bottom plate over the margin of the body-wall.

The invention also embraces other improvements in machines of this character, as will hereinafter more fully appear.

An organized machine in which my improvements are shown as embodied embraces geuerally a suitable die-press, provided with a verticallyreciprocating head, on which a forming-head is mounted, a plurality of dies for holding the sheet-metal body-blank and the bottom plate in position for being operated upon by said forming-head, anda carrier for said dies, by which they are successively brought into cooperation with the forminghead.

The invention consists in the matters hereinafter set forth, and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of a press fitted with devices embodying the principal features of my invention. Fig. 2 is a view, partially in section, taken on line 2 2 of Fig. 1. Fig. 3 is avertical central section, with parts broken away, taken through the press, the forming-head, the die, and the die-carrier, showing the positions of the parts when the press-head is at the uppermost part of its stroke and showing a sheet-metal blankbody and a bottom blank placed on the die. Fig. 3 is a view in cross-section showing a detail of a sleeve for raising the die on line 3 3 of Fig. Fig. i is a vertical central section through the forming-head, showing the side wings of the forming-head at their positions of initial engagement with the blank. Fig. 4t is a sectional detail of one of the side wings, together with its actuating-cam, illustrating the forming-jaw in its retracted position, but before the wing has been retracted. Fig. 5 is a vertical central section through the forming-head, showing the position of the side wings in the further downward movement of the forming-head. Fig. 6 is a vertical section taken through the forming-head, showing the position of the corner-wings at the beginning of their inward movement toward the blank. section showing the position of the cornerjaws at the end of the downstroke of the head. Fig. 8 is a bottom planview of the wings and heel-plates, showing the side wings projected inwardly. Fig. 9 is a similar plan View showing the corner-wings projected ihwardly. Fig. 10 is a plan view of the camring for actuating the wings. Fig. 11 is a view in detail in Vertical section of one of the side wings. Fig. 12 isasimilar detail of one of the corner-wings. Fig. 13 is a view in cross-section through the machine, taken on line 13 13 of Fig. 3. Fig. 14 is a similar sectional View taken on line 14 14; of Fig. 3. Fig. 15 is a view, partially broken away, of the heel-plate of the forming-head, showing ller-blocks therefor. Fig. 1G is a view on line .16 16 of Fig. 15. Fig. 17 is a similar View showing the filler-plates when the heelplate is expanded. Fig. 18 is a bottom plan view, partly in section, of the wings and heelplate, showing a modification of the formingjaws. Fig. 19 is a section taken through one of the corner-jaws shown in Fig. 18,-through the cam-ring, and a portion of the forminghead and illustrating a portion of the blank. Fig. 20 is a similar view showing the parts in position to complete the seam. Fig. 21 is a top plan view of one of the corner-jaws and a part of the cam-ring, showing in section the guide-bolts and pins for said jaws. Fig. 22 is an inside View of a segment of the camring shown in Figs. 19 to 21. Fig. 23 shows the shape'of the fiange on which the modified form of jaws are adapted to operate.

Referring in general terms to the machine illustrated, said machine comprises a suitable die-press having the usual reciprocating head, a cam-ring supported on the press, and a form- Fig. 7 is a similar verticaly IOO the head A.

ing-head mounted on the press-head and passing through the cam-ring at each stroke of the press, so that its forming jaws or wings are brought into operative engagement with the cam-ring, dies suitable for carrying sheetmetal blanks, and a carrier ou which said dies are mounted so as to be brought successively into position for engagement with the forming-head.

The machine is herein shown as adapted to be used in seaming oblong can-bodies, such as used, for instance, for making sardine-cans; but it will be understood that the machine may be adapted for operating upon sheetmetal bodies for other purposes and of other shapes than shown. The term can-blank. used hereinafter is employed merely for convenience of designation.

In the drawings, A designates a die-press having the usual vertical reciprocating head A and a circular carrier-plate B, rotatively mounted on the lower portion ot' its frame. Saidcarrier is of the general form shown and described in my prior application for United States Letters Patent filed March 1S, 1901, Serial No. 51,587, and is not claimed herein. A cam-ring C is secured to the press below As herein shown,said ring is secured by means of projecting lugs c thereon to lugs a' on the vertical guides or column of the press, Fig. 2, so as to be in the path of the stroke of the press-head. lts vertical poy sition relative to the press-stroke is predetermined, the usual adjusting means of the presshead being employed to obtain an accurate location thereof. The press-head A carries a forming-head D, having a plurality of forming-wings, hereinafter more speciiically described, adapted to be brought into contact at certain portions of the stroke with camsurfaces formed on the cam-ring C, whereby lateral movement is imparted to the wings at the Vti me they are moved downwardly to bring said wings in position with respect to the can B in such manner as to have limited vertical oscillatory movement in conjunction with the press-head, each being formed to carry a canblank.

Referring now especially to the formingheald D, said head comprises a central head d, whose form is shown in Figs. 3, 4, 6, and 14. Said head is formed with an upwardlyprojecting stem d', adapted to engage a vertical socket in the press-head A in the usual manner. Said stem d is provided with a central vertical elongatedapertu re which forms a .pocket for a spiral spring F. The lower end of' saidv spring acts against a plunger f, which has limited vertical movement in the lower and contracted part of said socket. .:lhe lower M end of said plunger projects into a central opening d2 in the center lof the head d and comes linto contact, ashereinafter more fully described, with wing-levers of the forming- ,head The upper 'end of the spring F comes into operative contact, as shown herein, with a horizontal bar N. Said bar N is secured transversely in the head A of the press in a suitable slot, so as to have a limited vertical movement, and is of sufficient length to project beyond the sides of the head and come into engagement at or near the upper part of the stroke of the head with lugs or stops al", which are secured to the main frame of the press. The spring F may bear against the press-head without the intel-position of the bar when it is not desirable to compress the spring F at the latter part of the upstroke. The tension of the spring F is sufficient to hold the bar N at the uppermost portion of its containing-slot when the bar N is not in engagement with its stops d10. Depending from said head d and pivotally supported therein on trunnions are two sets of wings Gand G. .One set of said wings G, hereinafter known as the side wings,7 are adapted to engage the middle portions of the sides of the can-blank between the corners thereof, while the other set G are adapted to engage the sides and ends of the blank, forming the corners thereof, and are hereinafter designated as the cornerwings. Vhen operating on cylindric cans, the wings corresponding to the corner-wings shown will have the form of arcs of a circle, and when operatin'gon otherforms of cans said wings will be Varied in shape to correspond to the particular shape of the can. Referring first to the side wings G, they each comprise a stem g, having trunnions g at its upper end, which engages trunnion-blocks g2, Fig. 14, so that the stem g swings in a vertical arc toward and from the center of the head d.. Said trunnion-blocks g2 are secured to the head cl by screws or other suitable means. Projecting outwardly from the upper end of the stern g is a horizontal arm g3. The outer end of the arm is provided with an aperture Q12, which permits passage therethrough of a guide-pin c, secured in the cam-ring C, and the consequent engagement of the arm with a spiral spring cu in a manner hereinafter to be more fully described. At the lower 'end of the stem g is secured a fixed horizontal plate g4 of the contour plainly shown in Figs. 8 and 9. Said plate is secured by means IOO of iillister-head stud-screws g, so as to form, l

in connection with the end surface of the stem g, a horizontal guide in which slides a plate or jaw g". Said jaw g is formed with a rabbet on its inner end adapted to engage the margin of an outwardly-projecting flange on the can-body and the edge of the end plate of the can-body superimposed thereon and bend them dowu against the can-body to form a seam, as hereinafter more fully described. The outer end Q7 of said jawis beveled to form a cam-surface to act against the camsurface ofa portion of the cani-ring C. A horizontal slot is formed in the bottom of the steml g, in which is located a spiral springvgs, said spring acting in compression between the end of the slot and a pin g, which is secured in and projects from the upper surface of the jaw-plate Q6 into the slot. The action of the spring gS on the pin g is to hold the jaw gfs in its outermost position (shown in Fig. l1) when said jaw is not in contact with the cam-ring C.

The corner-wings G' are similar to the side wings Gr in that they each have a stem g' and a sliding jaw gli secured between the ends of the stem g and a plate g likewise pivotally attached to the head CZ by trunnions g engaging trunnion-sockets in the trunnion-block g2. The eornerjaws are of the contour shown in Figs. 8 and 9 in order to enable them to engage the cornerportions of the can-blank. They are provided each with a horizontal arm gw, which projects inwardly through a slot formed in the head CZ to approximately the center of the head and the opening cl2, so that the inner end of the arm gm bears with its upper surface against the lower surface of the spring-pressed plug f. The action of said plug on the arms is to keep the corner-wings in the position shown in Fig. 6 when they are not in engagement with the cam-ring.

The lower end of the head d is provided with a spring-pressed sectional presser or heel plate I, consisting of segments 1l, having a ball-and-socket connection with the head at the center, as plainly shown in Fig. 3, so as to be aorded an angular oscillatory movement thereon. Said connection is afforded by a screw K, secured on the lower surface of the head d, having a head consisting of a segment of a sphere and engages curvedlugs projecting upwardly from the plate-segments. Spiral springs e" are inserted in apertures in the lower end of the head cl and bear against the upper surfaces of the plate-sections and tend to hold the outer edges thereof down, as shown in Fig. 3. When the headis depressed, the collapsed heel-plate I is permitted to freely enter the depression in the end plate of the can, and when Jthe head is fully depressed the segments of the heel-plate have swung upwardly on their pivots and expanded, so as to force the edges of the plate outwardly against the vertical flanges of the end plate, said outer edges of the heel-plate aording a backing against which the seaming-jaws act. In order to provide a perfect bearing-surface against the blank when the segments z' are pressed back against the die-head d, filler-blocks i2 are secured in the die-head d, so as to fill the spaces between the segments when thrown upwardly, the outer faces of said filler-blocks being flush with the outer faces of the segments.

Referring now to the cam-ring C, said ring comprises a ring supported, as hereinbefore stated, by suitable lugs c c', bolted or otherwise suitably secured to lugs ct on the frame of the press. The inner surface of the ring is partially formed with beveled segments forming cams c2, symmetrically disposed around the interior of the ring and adapted They are ,f

to engage the corner-wings G of the formerhead to move the jaws g6 radially inwardly upon the depression of the head. Obviously said cam-surfaces may be straight instead of curved, as shown. Between said metal camsurfaces c2 and mounted on the upper surface of the ring are blocks cs. Said blocks are secured b screws cS assin through slots in y a: o

the blocks and are afforded a lateral adjustment by means of set-screws c4, having screwthreaded engagement with upturned lugs c5, formed on the ring and bearing with their inner ends against the outer ends of said blocks c3. Said set-screws c4 are held in adjustment by lock-nuts c6. The inner ends of each of the blocks c2 are formed with a beveled and undercut ilange c7, as plainly shown in Figs. 3, 4, 4c, and 5. Said blocks are symmetrically disposed around the ring, so as to engage the beveled ends gl of the slide-jaws c(i of the side wings of the forming-head to give to said jaws lateral movement toward the center of the press simultaneously with the vertical movement of the head d, as hereinafter more fully described.

Referring now to the die,it comprises a plate E, shaped to conform to the figure of a bodyblank for which the press is adapted and having a raised center portion e, with beveled sides e', on which the body-blank may be set in an inverted position and centered by said beveled edges with respect to the die. If the can is to be seamed after it has been iilled, the die or center block will be formed to receive the can instead of entering the blank, as shown. Said plate E is mounted on a stem e2, which has vertical sliding engagement with the carrier through a suitable guide aperture and whose lower end, when the die is under the head and the carrier is at rest, is adapted to engage the upper end of a plunger H, mounted in the bed of the press, as shown in Fig. 3. Said plunger H has sliding engagement at its lower end with `a sleeve 7L, which contains a spiral spring h', the lower end of which bears against a screw-plug 7b2, inserted in the lower end of said sleeve and the upper end of which bears against the lower end of the plunger H. Said sleeve is provided with trunnions ha, which are adapted to loe engaged by the :forked arms 7c on lever K. The inner end of said lever K is raised, so as to bring the plunger I-I into engagement with the stem c2 of each die as, the latter is brought by the carrier into cooperative position with respect to the forming-head. Said lever K is secured at one end to a horizontal rock-shaft K', which is rotatively mounted in suit-able bearings on the press-frame and carries at its end remote from the lever K a rock-arm K2, which is in alinement with a slide K3, which carries the dog actuating the carrier B. On said slide is secured a limber pawl K4, which is adapted to engagera-nd depress the rock-arm K2 during the time the slide K3 is retracted and `when the die is in operative position with respect to the form er- ICO IIO

sol

The operation of the machine as a whole .i

is as follows: Acan-blank J, having an out-- turned iianged formed on one of its margins, is placed on the die-plate E with the flange end uppermost. is inserted or laid on the top of said bodyblank J, said end plate having a depressed ,center portion to enter the upper edges of` said can-body, with its margin overlappingv and lying upon the outturned iiange of the body-blank. By the rotation of the carrier the die-plate E is brought into register with the vformer-head. Immediately` after this movement is effected the slide K3 is retracted and the pawl K4 engages the rock-arm K2, l

whereby the inner end of the lever K is raised andthe die-plate E thereby raised to the l plane vof the cam-ring C. While said dief plate is beginning to rise the vformer-head begins to descend. When the outer edges of thespring-pressed segments of the heel-plate I are brought into engagement with the end .plate .of the body-blank, the said plate is eX- panded outwardly against the iiange of said plate and fits tightly therein. As the' downstroke yof the press proceeds the wingsA Gr of former-head are ,passed down through the .cam-ring and the side jaws are thrust inwardly by lengagement of the beveled surfaces g7 on the outer ends of the jaws with the beveled surfaces of the segment c7 of the Acam-blocks c3 on the ring. As the side wings are swung inwardly by this action of the cam- .surfaces thel inner ends of the stationary plates g4 grip the opposite sides of the canblank, so as to center the blank on the-die and lgrip the blank to-hold it in place.4 Vhile the former-head-is descending in the manner described, the die-plate E will be moved upwardly-to bring the upper end of the canblank approximately to the plane of the upper surfaces of the blocks c3, so as to -permit the ends of the plates g4 to grip the can-body below thefiiange thereon when moved inwardly. When the can-blank has been so gripped by the wingsG, the die-plate is depressed in unison with the former-head to the y position shown in Fig. 4, said depression being allowed bya sharp inclination in the rear end ofthe rock-arm K2, with which the pawl is at this` time engaged, and a slight` compression-of the spring h. The spring g8, Fig. 11, is ymade of suchstrengthas to resist compression when the plates g4 of the wings G are being moved against the can-body. After .the can has beenl gripped in the manner described-the furtherdepression ofthe head acts to move the seaming-jaws g inwardly against the flanges of the end plate and canbody. The flange of the end plate comes iirst in contact with the forming-rabbet in y.beveled edges of the blocks c3. A blank for a bottom plate side wings out after they have passed the At the same time the springs c11 on the posts c are in engagement with the outer ends of the arms g3 of the side wings, and said springs are brought under compression by the downward movement of the former-head. When, therefore, the jaws gG pass the cam-surfaces of the camblock c3, said springs act to quickly throw the side wings into the position shown in Fig. 5. By these movements the central parts of the body-flange and margins of the end plate between the corners have been bent over and formed into a double seam. In the further descent of the former-head the corner-jaws are thrown forward to complete the forming of the seam. As the downward movement of the presser-head continues the lower outer corners of the fixed plates g4 of the wings G encounter the beveled surfaces c2 of the cam-rin g c, as clearly shown in Fig. 6, so that the win gs are swung inwardly and the inner ends of the plates g4 engage the portions of the .can-body below the flange and adjacent to the corners and hold the Vblank firmly in position, as shown in Fig. 7.' As the stroke continues the forming-jaws 96 thereof are thrown inwardly by the action of the cam-surfaces on the ring-segments c2, so that the formingrabbets at the inner ends thereof catch the margins of the flanges in the same manner as the side forming-jaws before described to form the seams at the corners of the blank. It will be understood that during the entire downward movement of the forming-head after the heel-plate thereof comes into contact with the can-blank the die-plate moves downwardly in unison with said head. -On the return movement of the follower-head the'side jaws may be again thrown into contact with the seam of the blank, so as to press out any irregularities in the seam at this point, if any exist. This may be accomplished by raising the can-blank when the side wings are retracted, so that when the jaws gi pass the widest parts of the camblocks c3 the seam on the body will be in position to be engaged by the forming-face of said jaws, so that said jaws will exert pressure on the seams.

It will be seen by an inspection of Figs. 8 and 9 that the acting faces of the side jaws are wider than the spaces between adjacent corner-jaws, so that said corner-jaws overlap part of the work done by the side jaws. This insures a perfect nish between the parts of the seams formed by the two jaws. From the Lforegoing description it will be understood that the side jaws perform their work and are IOO IIO

retracted before the corner-jaws are moved inwardly. By reason of the widened working faces of the side jaws it becomes important that they be retracted promptly, so as not 'to be locked by engagement with the cornerjaws as the latter are moved inwardly. Itis for this purpose that the springs Q8 are provided, which insure a prompt retraction of the jaws. Itis for this purpose also that the springs c11 are provided, which quickly throw the side wings outwardly after they have passed the cam-blocks c3 in the descent of the followerhead.

The construction described is adapted to form what is known as a double seam.77 Il a single seam is to be formed, the flange on the can-body is omitted and the projecting part of the fiange on the end plate made nar- Under these conditions the formingjaws merely press the end-plate flange downwardly and inwardly upon the can-body. In this event the parts of the machine are adjusted to compensate for one thickness of tin omitted-namely, the flange of the can-body.

In Figs. 1S to 22, inclusive, I have shown modified form of jaws and cam-ring for forming a double seam on body-blanks having flanges like those shown in Fig. 23. In said figure the end plate ofthe blank J is provided with a flange, the intermediate part of which overlies the outturned flange ofthe body and the extreme margin j of which is disposed ver tically and surrounds said body-flange.

In the construction shown in Figs. 1S to 22, inclusive, the corner and side jaws are each made of two relatively movable parts and the cam-ring is provided with two separate cams foractuatingeachjaw. Thecorner-jawsconsist of two plates Q11 Q15, one above the other, having slots engaged b v guide-pins Q16, passing upwardly through the bottom plate Q11 of the wing. Q12 Q1s designate pins which pass upwardly from the plate Q11into'sockets in the wing and engage springs Q19 therein, as shown in dotted lines in Figs. 18 and 20. Q20 designates a like pin which projects upwardly from the lower plate Q15 through a slot in the plate Q1L and into a centrally-located socket in the wing and engages a spring Q21 therein. Said springs Q19 and Q2l tend to hold the plates Q11 and Q15 retracted from their work. The lower plate Q15 is provided with a central shank Q22, Fig. 18, which fits in a groove in the lower surface of the plate Q11, and the outer end of said shank and the corresponding edges of the plate Q1*1 are beveled. The inner part of the cam-ring C is provided with a cam projection 011, adapted to engage the inclined end of the shank of the lower plate7 and the ring is provided below said cam projection with an inclined or cam surface 015, which engages the inclined edge of the plate Q14. The part of the ring immediately above the inclined surface C12 is substantially vertical, and the ring is inclined above said vertical part, as shown at G12. The side jaws also consist each of an upper plate Q21 and a lower plate Q25, having slots engag-ed bya guide-plate Q26, similar to the guidepins Q16. Said plates of the side jaws also are placed under the influence of springs like the springs Q21, which tend to retract said plates. The movements of the side and corner jaws are substantially alike and will be described with reference to Figs. 18, 19, and 20. As the head moves downwardly the lower plate Q1T of the wings first comes in contact with the inclined surfaces o16 of the ring, and said wings are swung inwardly to bring the inclined ends of the Shanks in contact with the cam projections 011. Contact of said parts in the further depression of the head causes the wings to be moved inwardly until the plates Q17 are brought into contact with the can-body, below the flange thereof. Further depression of the wings causes the lower plates of the jaws to move inwardly against the compression of the spring Q12 to engage the vertical party' of the flange of the end plate and press the same inwardly and upwardly into the position shown in Fig. 19. Immediately thereafter the shank passes the cam projection C14 and the lower plate Q15 is thrown outwardly against the inclined or cam surface 015. In the continued depression of the wings the plates Q14 Q15 are moved inwardly in unison, and the action of the two plates is substantially like the similar jaws of the construction previously described, the end of the downward movement of the rings and the inner limit of movement of the jaws being shown in Fig. 20. The remainder of the operation is substantially like that of the construction first described. It will be understood that the duplex side jaws are operated by inclined or cam surfaces like those just described, but located above the level of the ring, as shown in the other figures of the drawings, so as to actuate the side jaws in advance of the corner-jaws, as in said previously-described construction. In practice the horizontal surfaces between the projec- ICO tions c11 and the surfaces 01V and the extreme l ends of the Shanks Q22 are slightly rounded, and the parts will be kept well oiled, so that the lower plates of the jaws will be forced inwardly in the ascent of the wings sufficiently for said plates to pass said projection.

If the partsj of the flange shown in Fig. 23 be perfectly formed, the construction first described is well adapted to form the seam; but it has been found in practice that in making a flange of this form thereis tendency to the formation of an outwardly-curled bur on the edge of the flange. The construction last described insures that' the vertical part of said flange will be turned inwardly and upwardly without tendency of the ange being curled in the direction given thereto by the bur.

The several terms herein employed for designating the various parts of the machine have been employed merely for the purpose of couvenience of designation and are not to be understood as limiting terms. For iustance,the

jaws forming the parts of the seams at the corner of the can-body herein shown-will if a can or body of other shape be operated upon becorrespondingly changed and may not, in fact, be strictly corner-jaws.

Many changes may be made in the details of construction without departing from the spirit of my invention, and 1 do not wish to be limited to the illustrated construction eX- cept as hereinafter made the subject of specic claims.

I claim as my invention- 1. A machine for the purpose stated comprising a die or support, vertically-reciprocating forming-jaws, and means for moving said jaws inwardly against a body-blank while said jaws are descending, said support being mounted to move in unison with the jaws in a part of the vertical reciprocation thereof.

2. A machine forthe purpose stated, comprising a die or support, vertically-reciprocating wings pivoted to swing in vertical planes, forming-jaws carried by said wings, and means for moving said jaws inwardly against a body-blank while said jaws are descending, said support being mounted to move in unison with the jawsin a part of the vertical rociprocation thereof.

3. A machine for the purpose stated, comprising a die or support, Vertically-reciprocating wings pivoted to swing in vertical arcs, and forming-jaws carried by said wings and l sliding horizontally therein radially toward a centrally-located body-blank.

4. A machine foi` the purpose stated, comprising a die or support, vertically-recipro cating wings pivoted to swing in vertical arcs, forming-jaws carried by said wings and movable horizontally therein, and springs applied to said jaws which tend to retract the jaws from their work.

5. Amachine for the purpose stated, comprising a die or support, vertically-reciprocating wings pivoted to swing in Vertical arcs, forming-jaws carried by said wings and movable horizontally therein, said jaws being each made of a plurality of parts having relative horizontal movements.

6. A machine for the purpose stated comprising a die or support, vertically-reciprocating forming-jaws adapted to surround said die or support, and a cam-ring through which said jaws pass in their descent, said ring being adapted to engage at its inner margin the jaws to move the same inwardly toward the n die or support as the jaws descend.

7. A machine for the purpose stated comprising a die or support, vertically-reciprocating wings pivoted to swing in vertical arcs, forming-jaws carried bysaid wings,and a camring through whichsaid jaws pass in their descent, said ring being constructed to move said jaws inwardly as the wings descend.

8. A machine for the purpose stated, comprising a die or support, vertically-reciprocating forming-jaws, a cam-ring adapted to engage the jaws to move the same inwardly as the jaws descend, and springs applied to throw the jaws outwardly when disengaged from said Cain-ring.

9. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating head, wings carried by said head to swing in vertical arcs, forming-jaws sliding horizontally in said wings radially toward a centrally-located body-blank, and a cam-ring constructed to move said jaws inwardly in the descent of the head.

10. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating forming-head, jaws carried by said head, means for moving said jaws inwardly against a body-blank in the descent of the head, and a heel-plate adapted to enter a depression in the end plate of the blank against the margins of which the jaws act, said heelplate being non-rotative and having a continuous margin against which the jaws act.

11. A machine for the purpose stated, comprising a die or support, radially-movable forming-jaws, and a collapsible heel-plate adapted to press upon the en d plate of the blank-,body and against the margins of which the jaws act. j

12. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating head, forming-jaws carried by said head, means for moving said jaws inwardly against a body-blank in the descent of the head, and a collapsible heel-plate adapted to enter a depression in the end plate of the blank and against the margins of which the jaws act. y

13. A machine for the purpose stated, comprising a die or support, radially-movable forming-jaws, and a segmental heel-plate, the parts of which are hinged at their adjacent corners to a part which carries the jaws, and iilling-pieces adapted to fill the spaces between the segments of the plate.

14.. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating head, jaws carried by said head, means for moving said jaws inwardly against avbodyblank in the descent of the head, and a seg-V mental heel-plate, the parts of which are hinged at their adjacent corners to the head, and against the outer margins of which, when said plate iseXpanded, the formingjaws act. I

15. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating head, forming-jaws carried by said IOC IIO

formingjaws arranged alternately in two sets, the jaws of one set overlapping a part of the work effected by the jaws of the other set.

17. A machine for the purpose stated, comprising a die or support, radially-movable formingjaws arranged alternately in two sets, the jaws of one set overlapping a part of the work effected by the jaws of the other set, and means for advancing the jaws of one Set to their work and retracting the saine before the jaws of the other set are advanced to their work.

1S. A machine for the purpose stated, comprising a die or support, vertically and horizontally movable jaws arranged alternately in two sets, the jaws of one set overlapping a part of the work effected by the jaws of the other set, and means for moving said jaws inwardly against the work as the jaws are moved downwardly.

19. A machine for the purpose stated, comprising a die or support, a vertically-reciproeating forming-head, forming-jaws carried thereby, said jaws being` divided in two sets and thejaws of one set being arranged alternately with respect to the jaws of the other set, said jaws of one set being actuated in advance of the jaws of the other set, and means for moving said jaws inwardly against the body-blank in the descent ot the head.

20. A machine for the purpose stated, comprising a die or support, a vertically-reciprocating head, forming-jaws carried by said head, said jaws being arranged in two sets and the jaws of one set being arranged alternately with respect to the jaws of the other set, one set of said jaws being actuated in advance of the other, and the working faces of the jaws of one set overlapping a part of the work effected by the jaws of the other set.

2l. A machine for the purpose stated, comprisin g a die or support, two sets of jaws which have vertical and horizontal movement, the working faces of one set of jaws overlapping a part of the work effected by the jaws of the other set, means for advancing said jaws to their work and means for retracting one set of jaws from the work before the jaws of the other set are advanced.

A machine for the purpose stated, comprising a die or support, vertically and horizontally movable forming-jaws, arranged in two sets, the jaws of one set being arranged alternately with respect to the jaws of the other set, means for moving said jaws inwardly as they descend, said means being constructed to move one set of jaws inwardly to their work and retract the same before the jaws of the other set are advanced to their work.

23. A machine for the purpose stated, comprising a die or support,radially-movable jaws arranged in two sets, the jaws of one set being arranged alternately with respect to the jaws of the other set, means for moving one set of jaws horizontally to their work and retracting the same before the jaws of the other set are advanced to their work, and means for forcing the set of jaws lirst actuated against the work after the second set has been retracted.

24. A machine for the purpose stated, comprising a die or support, vertically and horizontally movable jaws arranged in two sets, the jaws of one set being arranged alternately with respect to the jaws of the other set, a cam-ring into which said jaws are depressed and by which they are advanced inwardly against the work, said cam-ring being provided with two sets of cams, one set being arranged above the other, whereby the two sets of jaws are separately actuated, as said jaws are moved downwardly.

25. A machine for the purpose stated, comprising a die or support, vertically and horizontally movable jaws arranged in two sets, the jaws of one set being arranged alternately to the jaws of the other set, a cam-ring into which said jaws are depressed and by which they are advanced inwardly against the work, said cam-ring being provided with two sets of cams, one set being arranged above the other, whereby the two sets of jaws are separately actuated as said jaws are moved downwardly, the jaws of one set being passed entirely below the upper set of cams, and springs applied to said last-mentioned jaws to effect a prompt retraction of said jaws after they have passed below their actuatingcams.

26. A machine for the purpose stated, comprising a die or support, vertically and horizontally movable jaws arranged in two sets, the jaws of one set being arranged alternately with respect to the jaws of the other set, a cam-ring through which said jaws are depressed and by which they are advanced inwardly against the work, said cam-ring being provided with two sets of cams, one set above the other, whereby the two sets of jaws are separately actuated as said jaws are moved downwardly, the jaws of one set being passed entirely below the upper set of cams and springs applied to said last-mentioned jaws to effect a prompt retraction of said jaws after they have passed below their actuating-cams, the working faces of the jaws of the last-mentioned set being made wider than the spaces between the jaws of the other set when the latter jaws are moved inwardly.

27. A machine for the purpose stated comprising a die or support, combined gripping and forming jaws, and means causing said jaws to first grip a body-blank to hold it in place and thereafter to form a seam on said body-blank.

IIO

28. A machine for the purpose stated comprising a die or support, vertically-reciprocating, combined gripping and forming jaws, and means causing the gripping-jaws in the first part of the descent thereof to grip the body-blank to hold it in place and thereafter in the further descent of the jaws to move the forming-jaws inwardly to form a seam on the body-blank.

29. A machine for the purpose stated comprising a die or support, vertically-reciproeating, combined gripping and forming jaws, and means causing the gripping-jaws in the first part of the descent thereof to grip the body-blank to hold it in place and thereafter in the further descent of the jaws to move the blank, and a spring applied to hold each forming-jaw to retract it with respect to its associated gripping-jaw.

31. A machine for the purpose stated comprising a die or support, a plurality of Vertically reciprocating formingjaws, adapted when depressed to surround said die or support, and means for moving said jaws inwardly against the body-blank while said jaws are descending, said jaws being each made of a plurality of parts having relative, horizontal movement radially toward the die or support.

In testimony that I claim the foregoing as my invention I affix my signature, in presence of two witnesses, this 4th day of April, A. D. 1901.

WILLIAM J. KENNY.

Witnesses:

WILLIAM L. HALL, C. CLARENCE POOLE.