US372871A

US372871A - Can-soldering machine

Info

Publication number: US372871A
Authority: US
Publication date: 1887-11-08
Anticipated expiration: 1904-11-08

Description

(No Model.) 7 SheetsSheet 1,

v C. W. SLEEPER.

GAN SOLDERING MACHINE.

No. 372,871. Patented Nov. 8, 188'7.

Wi'h'IESEEE. IFlT/EflkElI Z GZQ/YZGS %r% 'W v N. PETERS. PholwLiihnmaphm'. Washmghm. n. c,

7 Sheets-SheeflZf (No Model.)

0. SLEEPER.

(EA-N SOLDERING MACHINE.

Patented Nov. 8', 1887.

06 Q y z IqVEqiUY. @7555 20:6

N. PETERS. Fhnla-Uflwgnphur. Withinglun. D. C.

7 Sheets-Sheet 3..

(No Model.)

0. W. SLEEPER. (JAN SOLDERING MACHINE.

No. 372,871. Patented NOV. 8, 1887.

WE jkw fifr W 4% (No Model.) 7 Sheets-Sheet 4.

0. W SLEEPER. CAN SOLDBRING MACHINE.

No. 372,871. Patented Nov. 8, 1887. J6 Pi g: 4

N. PETERS. mnmmm n mr. Washington n.c.

7 Sheets-Sheet 5.

(NdModeL) 0. W. SLEEPER.

CAN SOLDERING MACHINE.

No. 372,871. Patented Nov.-8, 1887;

red-ion on 2:86

(No Model.) 7 ShtsSheet 6.

O. W. SLEEPER.

CAN SOLDERING MACHINE. 7

No. 372,871. Patente d yov. 8, 1887.

w; ag I d WiyqEsSEs. lrTw/er' imr.

@W'Zfia zl/ fileyaer UNITED STATES PATENT OFFICE.

CHARLES W. SLEEPER, OF COATICOOK, QUEBEC, CANADA, ASSIGNOR TO THE AUTOMATICCAN MACHINE COMPANY, OF BOSTON, MASSACHUSETTS.

CAN-SOLDERING MACHINE.

SPECIFICATION forming part of Letters Patent No; 372,871, dated November 8, 1887.

Application filed September 25, 1886. Serial No. 214,533. (No model.)

-of Coaticook, county of Stanstead, and Prov-- ince of Quebec, Canada, have invented an Improvement in Can Soldering Machines, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on the drawings represent- I ing like parts.

This invention is intended as an improvement upon the machine represented in United States Patent N 0. 24,7 63, to which reference may be had.

In the machine herein to be described the mechanism for feeding the sheets of tin to be made into cans has been simplified and im-. proved, in order that the sheets of tin maybe accurately fed, and provision has been made for applying soldering-fluid to one edge of the sheet, where the same is to be overlapped in soldering the can-body.- The cutting-off tool employed to sever'th'e soldering-wire has been arranged topass through a box or receptacle containing rosin, so that the solderingwire, together with some rosin, is deposited upon the can'body at that edge of the same which is overlapped, as usual in the formation of the longitudinal or body seam. To straighten the soldering-wire before it is applied to the surface to be soldered, I have provided a straightening device consisting, essentially, ofahinged plate supported by a spring, the strength of the spring being overcome by the pressure against the plate of the solder-wire acted upon by the cutting-off blade the pressure required to depress the plate being in excess of that required to straighten the soldering-wire. Each mandrel upon which the can-body is shaped is provided at its upper side with a strip or piece of aluminum, the said strip receiving upon it that part of the can-body where its edges are overlapped tov be soldered, the edges of the clamp being also re-enforced by aluminum strips, to thus prevent the adhesion of solder to either the mandrel or to the clamps. I have obtainedvery good results as to preventing the adhesion of solder to the mandrel by employing therein a strip of porcelain. The soldering-i-ron, in addition to its movement down upon the solder, has a longitudinal or to-andfro movement approximating the usual hand motion of a soldering-iron, such movement acting to rub the solder into or upon the seam.

To obviate the overrunning of the intermittingly-rotating table, which,when moved, goes at high speed, I have provided the machine with a checking device consisting, essentially, of a lever or arm acted upon by a spring, the said lever being elevated into working position just before the rotation of the table is commenced, so that the lower end of the bracket, depending from the rotating table immediately below the mandrel containing the tin sheet next to be soldered in the production of a can-body, strikes against the said lever and turns the same in a direction to stretch the said spring, the latter serving as a check .to prevent overrnnning of the movement of the table beyond the point to which it is moved by a positively-acting pawl. The rotating table, carrying the said mandrels, is in practice provided with a like bracket under each mandrel,each bracket serving to guidea rod which lifts the center block of the former, and also a rod provided with a yoke which serves to close the jaws of the former as the latter shapes the sheet of tin to the mandrel. I have also provided the machine with mechanism whereby each former (the table having arrived in the proper position for the discharge of a completed can-body) is positively lowered to avoid breaking the clamps, as might happen provided the formers were permitted to drop quickly by gravity.

Figure 1 is a top or plan view of a machine embodying the invention to be herein described, some of the formers being omitted from the mandrels. Fig. 2 is a partial lefthand end view of the machine, the position occupied by the feeder being considered the front, the brackets and formers being omitted from all but one mandrel. Fig.3 is a detail of the devices for moving the checking-lever, the said figure also showing the lower end of one of the depending brackets. Fig. 4 is a sectional'detail, chiefly to show the devices employed to raise the rods for operating the formers and for moving the lever employed to actuate the slide in the sheet-feeding mechanism. Fig. 5 is a sectional detail showing the cam and its co-operating arm to move the rock-shaft carrying the lever shown in Fig. 4,

the said figure also showing the lever for operating the pressing-lingers employed in the feeding mechanism. Fig. 6 is a top or plan view, on a large scale, of the tin-feeding mechanism. Fig. 7 is a section of Fig. 6 in the dotted line :0 m. Fig. 8 is a section of Fig. 6 in the line :12 m. Fig. 9 is a section of Fig. 6 in the line so as". Fig. 10 is a section of Fig. 9 in the line a m". Fig. 11 shows a sheet of tin with one edge flanged where it is to overlap the opposite edge of the sheet after the latter has been applied to the former. Fig. 12 is an enlarged side elevation of part of the machine, chiefly to show a former and devices to operate it. Fig. 13 is a right-hand end elevation of Fig. 12. Fig. 14 isa detail of the foot removed from the bottom of the bracket in Fig; 12. Fig. 15 is a detail in top or plan view of the guide for the yoke employed to close the jaws of the former. Fig. 16 is a cross-sectional View of the solder-cutting device in place in the rosin-feeding box, the said figure also showing the straightening devices for the solder-wire. Fig. 17 is a seeu tional detail taken below the line w of Fig. 2,

chiefly to show the operation of the checking device for the table. Fig. 18 is a detailed view taken from the right-hand end of the machine to show the devices for gradually lowering the former andsome of the parts for operating the soldering-iron; and Fig. 19 shows a portion of the table, one mandrel, and the former lowered below it.

A represents the frame-work of the machine, it being of suitable shape to sustain the working parts, and h is the main camshaft. The cam-shaft has a gear, A, which is engaged by a gear, A, at the inner end of the drivings'naft A, provided with a suitable pulley, A*, which will be driven in usual manner.

The table (1, having at its under sideasleevelike post, a, is fitted over a post, (1, held in bearings (1 attached to the frame-work. The lower end of the sleeve (1 has attached to it, by a bolt, (1, a disk, a which is provided with suitable holes or notches for the engagement with it of a pawl, a, pivoted upon an upright level or pawl-earner, a pivoted at d on a cross-bar of the frame-work, said pawl being moved in the direction of the arrow on it (see Fig. 2) by a cam, d, (see Fig. 4,) which acts upon a roller-stud, d, attached to the pawlcarrier of, the pawl-carrier if having an arm, a, which is acted upon by the cam d to move the pawl-carrier in the opposite direction. The pawl a, by its engagement with the disk a rotates the table a intermittingly, the said table being locked in position after each step by means of a locking device, A (see Fig. 1,) made as aspring-arm, attached to a rigid part of the frame-work by a bolt, A, the said locking device being lifted to release it from a notch, 5, in the table a by means of a lifting-rod, 0 jointed to one end of the lever 0, pivoted at 0 and acted upon by a cam, 0, (see Fig. 2,) fast upon the left-hand end of the shaft h.

Thetablea has attached to it a series of mandrels, b, extending therefrom radially, each mandrel at its upper side being provided, as shown best in Figs. 2 and 12, with astrip, 103, of aluminum, that metal having, as I have discovered in practice, no affinity for solder. Each mandrel, as in the patent herein referred to, has at itssidesgrooves, through which move the arms 15 of an ejector employed to discharge the soldered can-body from the mandrel. Each ejector, composed of the arms 15 and sliding head 16, provided with rollers 14, is in construction and operation the same as described in the said patent, and need not be herein further referred to.

The table a, below each mandrel b, is provided with a depending bracket, A having a guide, A, and a foot, A. These guides and feet serve as guides for the rod p, employed to lift the formers, to be described, and the shank rof the yoke r, the latter having arms r, provided, preferably, with rolls 0, which act to close the jaws of the former as the yoke is raised, as will be described, said rolls at such time acting upon the lugs c", attached to the jaws of the former. Each former is composed of a center piece, a, pivoted at c to the lug c of the hanger A and of twojaws, c, pivoted upon the center piece, 0, by the pivots 0*.

Referring to the tin-feeding mechanism. 172. represents a sliding plate, the ends of which are made to enter grooves in vertical plates 1, constituting part of a box secured to and extending from the front side of the frame-work A, the said sliding plate having at its upper side projections m, which serve as rests for the sheet, T, of tin to be formed into a canbody. the said sheet lying upon the said rests while it is being moved forward from the said box into position between one of the mandrels b and a former, a a", which former at such time is lowered and open, as in Fig. 19, and also as shown in Fig. 1, directly opposite the tinfeeding mechanism.

The sliding plate m is provided with preliminary feeders m, (shown as bars attached thereto by screws 21,) the forward ends of the said feeders m receiving against them the rear edge of the sheet of tin to be fed into position between the mandrel and former. Each rest in, nearest the sliding plate l, has a suitable stud, 31, (shown by dotted lines, Figs. 6 and 7,) which serves to support the secondary feeders 32, (see Figs. 1, 6, and 8,) each secondary feeder being normally held forward byaspring, 33, connected to a stud, 34, projecting from one side of the said secondary feeder, the rear end of the said spring being attached to the sliding plate m by a screw, 35. The upper ends of the secondary feeders 32 stand normally a little above the top of the rests m, so that the ends of the said feeders may catch upon the sheet of tin to give to it its second step forward, the springs 33 serving to prevent bending or indenting the forward end of the sheet of tin asitis pushed into position between the lIO in the said detents, the latter having beveled feet, as shown in Fig. 7, which are acted upon and lifted by the sheet of tin as the latter is being pushed forward by the feeders in, the detents so lifted by the sheet of tin falling behind the edge of the said sheet as the said sliding plate-marrivesjin itsforward position or as the feeders m complete their forward stroke, the said detents acting to hold the said sheet from being carried backward during the backward movement of the said sliding plate m, the backward movement of the said sliding fplate being alwayssufiicient to carry the points of the secondary feeders 32 behind the rear edge of the sheet.

The cross-bar Z has, attached to it two presser-feet, 43. made as springs, and also a guide, the said presser-feet acting to keep the sheet of tin pressed down upon the rests m, the guide 9 being so located as to insure the entrance of the forward edge of the sheet of tin correctly between the former and a man drel, the said guide 9 acting upon the upper side of the sheet of tin. I The crossbar Z also has attached to it, by screws 145, one member, 45, of a tin-creasing device, the other member consisting of an edge-lifter, 46, having an elevated portion, 44, the said lifting portion being attached to one of the side frames, Z, by a screw, 47, the said creasing device acting to bend or crease the sheet of tin at 48, as shown in Fig. 11, the edge of the tin so bent being adapted to overlap the other edge of the sheet when the latter is folded about the mandrel to be soldered in the formation of the longitudinal seam of the can-body, the creased edge overlapping the plane edge, so as to form a closer joint than were the edge of the sheet not so creased. 4

The side frame, Z, has a lug, 49, see Fig. 7,)

which receives a holder, 9 made of glass'or other suitable material, it containing solder ing-fluid., The holder g is provided with a rod, g inserted loosely into it, the other end of the rod-being made to act as a valve- The solder-fluid may be of any ,usnal kind. The lower end of the valve-rod g normally rests upon the arm 9*, pivoted at 50, and provided at its lower end with a brush, 51.

As the sheet of tin is pushed forward, as described, by the secondary feeders 32,-it acts against the corner52 of the lever g, lifting it sufficiently to raise the valve-rod g and let out from the holder 9 a portion of the solderingflnid, which runs down the valve-rod upon the lever dand down the said lever into the brush, the latter applying the soldering-fluid to the sheet of tin near one edge. While the sheet of tin is being fed forward by the secondary feeders 32 the former is depressed and its jaws are opened, leaving a clear open space between them and the mandrel.

Each sheet of tin is laid upon the rests m by hand, with its edge in front of the feeders m and just before the sliding plate m is moved forward fingers 53, attached to a rock-shaft, 54, are thrown down upon the upper side of the sheet, thus holding it down upon the rests on while being fed forward by the feeders of.

The rock-shaft 54 outside the plates Z has a crank, 55, to which is attached a connectingrod,-56, jointed to a lever, 57, pivoted at 58 to the framework A, the said lever being acted upon at the proper time by a stud, 59, (shown in dotted lines, Figs. 2 and 5,) attached to a cam, 60, secured to the shaft h.

The sliding plate m derives its movement from the cam 60, grooved at its side, as shownin Fig. 5, the said groove receiving in it a roller or other stud, 61, attached to the lever 62, secured to a rock-shaft, 63, having suitable bearings in the frame-work A, the said rockshaft having secured to it a second lever, 64, which, by a link, 65, is connected to a lug or carat the lower side of the sliding plate 1n.

To strengthen the parts just described and insure steady and uniform motion of the

levers

62 and 64, I have provided the lever 62 with the projection 163 and the lever 64 with the projection 67, and I have connected the said two projections by a bolt, 68.

After the sheet of tin has been fed into position between a mandrel and a former, the rod p is acted upon by a rod, 10 to lift the central part, c, of the former. This rod p made movable in guides B B is connected with a lever, p pivoted at B and acted upon by a cam, 19", on the shaft h. Next, the jaws have to be closed about the mandrel to bend the sheet of tin between them and the mandrel about the mandrel. To do this the yoke o is raised by the act-ion upon the lower end of the rod 7* of the rod 1, also made movable in the said guides B B the said rod i being joined by a link, 1", to one end of the lever 80, also pivoted at B, the said lever being acted upon and lifted by a rollerstud, 81, of an arm connected with the shaft h, as shown best in Fig. 4. As the yoke r is lifted, the rolls 0 of the arms r act upon the projection o and close the jaws of the former closely about the sheet of tin upon the mandrel. The edges of the jaws, as at 162, and shown only in Fig. 13, are represented as provided with the metal aluminum, so that the solder will not adhere to the edges of the said jaws.

Instead of the aluminum strip 103,1 might use, but not with as good results, a strip of porcelain.

The notched ends of the guide or bracket A, attached to thebracket A by a bolt, A, constitute a guide for the arms 7' of the yoke W, and to ease the movement of the said yoke and prevent binding I have provided the lug A with an anti-friction roller, A. Each rod 0" near its lower end is n'otched or cut away to form a shoulder, as 262, to be engaged by a dog, 82, pivoted at 165 on the plate A, and acted upon by a spring, 83, the said dog serving to hold the rod r and yoke elevated to retain thejaws of the former about the sheet of tin bent about the mandrel b until in the rotation of the table a the can-body arrives in position to be discharged, when the dog meets the upright 84 and is turned aside, releasing the rod r, which then descends by gravity. At the time that the rod 1' is so released its lower end has been brought into position by the rotation of the table a to stand just above the upper end of the inclined and curved track 85, and thereafter, in the further rotation of the table a, the rod '2" travels gradually down the said track, gradually lowering the jaws c" c. If for any reason the yoke should be stuck, the curved or inclined lip or plate 86,fixed to the upright84,will strike the rollerstud 87. The downward position of the rod 12 is determined by a pin, 144, therein, which meets the lug A". The rod 1) is permitted to descend immediately after it has been elevated to lift the center piece, 0.

A sheet of tin coated along one edge with soldering-fluid having been fed, as described, between a former and a mandrel, and the former closed to fit the sheet of tin to the periphery of the mandrel and cause one edge of the sheet to overlap the other edge, the table is turned one step to place the mandrel on which the sheet of tin is held by the former in position to have rosin and solder applied to it where the overlapping edge is to be soldered to the sheet. To accomplish this, I have provided the cam-shaft h, next the cam 0, with a can] projection, t, (see Fig. 2,) which acts upon a lever, t pivoted at t", the free end of which leverhas attached toit alink, 29, which link at its upper end is joined to the outer end of a lever, t, pivoted at t upon a rigid part of the frame-work, the said lever having attached to it, by suitable screws, (see Fig. 2,) the solder-cutter t the same being a flat blade of substantially the length of the solderingwire 8 to be deposited upon the can-body wrapped about the mandrel b, the said cutter 45 working through a slot in a rosin-holder, t, made as a box slotted longitudinally at its bottom and attached to a rigid part of the frame A, the said solder-cutter rising sufficiently far at each ascent to permit a portion of the rosin, t, therein to descend into a pocket (see Fig. 16)just above the spring-plate t hinged or pivoted, as at t", and having at one edge an arm, t", which is acted upon by a suitable spring, i", to normally keep the said plate in the position shown in the said figure. The soldering-wire 8, fed longitudinally into the said pocket, as will be described, and as practiced in the patent referred to, has a quantity of rosin deposited upon it while the cutter t is elevated, and as the said solder-cutter descends to cut from the solder-wire s a sufficient length of solder for the can to be soldered the said cutter pushes the said wire 8 down upon the plate t with a force sufficient to straighten the solder-wire before the strength of the spring i is overcome, the said cutter in its further downward movement overcoming the pressure of the said spring t, causing the plate t to descend and uncover the bottom of the said pocket, thus permitting the solder-wire, together with some of the rosin, to be deposited directly upon the sheet of tin previously bent about the mandrel b, one edge of the sheet overlapping the other edge, as in the patent referred to, one edge of the sheet of tin having previously had soldering-fluid applied to it, as has been described. The hub carrying the cam t has also a cam-roll, 202, (see dotted lines, Fig. 2, and full lines, Fig. 1,) which roll at each rotation of the shaft It acts upon alever, s pivoted at 41, and provided at its outer end with a link, 22, which isjointed to astud, 23, forming part of a collar adjnstably attached to a vertically-reciprocating toothed rack, 8 which at its upper end engages a pinion, 8, fast toa pawl-carrying disk, 26, provided with a spring-held pawl, 27, that engages a ratchettoothed gear, 28, fast upon the arbor 42, to which is attached the uppermost feed-roll,s,of a pair of feed-rolls, s s, geared together to be rotated at the same surface speed, and adapted to feed the soldering-wire 8, contained on the spool 3 for the proper distance, the said soldering-wire entering the pocket referred to at the lower side of the rosin-holder.

The mechanism for feeding the solderingwire into the pocket to be cut off is substantially the same in construction as in the said patent, and need not be herein further described.

In practice the rod t, for lifting the soldercutter, will be surrounded or connected by a suitable spiral or other spring, (not shown,) which will normally keep the lever t pressed upward in position to be struck by the cam t.

Each mandrel immediately at its top, where the overlapping edges of the can-body are to be soldered, is provided with a longitudinal strip, 103, (shown best in Fig. 13,) of aluminum.

Great difficulty has been experienced by the sticking of solder to the edges of the jaws of the former, and many different plans have been tried to obviate it.

It is a great desideratum to hold the sheet of tin between the jaws of the former and mandrel as close as possible to the overlapping edges of the sheet, and to enable this to be done, and yet not have the solder adhere to the edges of the jaws, I have provided the latter with a thin sheet or layer of aluminum, having found by practice that solder will not adhere to it, and it is the only metal known to me to which solder will not stick. After the solder-wire has been deposited upon the overlapped edge of the sheet of tin just above the aluminum strip 103 and between the aluminum-covered edges 162 of the jaws c, the table is unlocked and moved for another step to place the sheet of tin so held and treated in position to be soldered, and while so held the soldering-iron h is applied.

The soldering-iron h, heated, preferably, by gas in any usual manner, is attached to one end of a short rod, k secured to a rockshaft, k by a screw, h, the said rock-sh aft being guided in arms of a bracket, A", bolted to the main frame-work A. The rod It has attached to it a hand-lever, 106, which normally rests upon the locking-lever A before described, and is raised and lowered by the said locking-lever, the soldering-iron descending upon the solder as the tube is locked. The operator may engage the lever 106 and lift the soldering-iron if desired toexamine it, dress it, or examine the work under it. The rock-shaft h is provided with two adjustable collars, 88, between which is placed one end of alever, 89, pivoted at 91 on a cross-bar, 92,"of the said bracket, the otherend of the said lever having attached to it a rod, 93, connected to an' elbow-lever, 94, pivoted upon an upright, 95, the opposite end of the said lever having adj'ustably connected to it a link, 96, attached to one end of a lever, 97, pivoted at or near its center upon thesaid upright 95, the opposite end of the said lever 97 having attached to it a link, 98, which is loosely jointed to a lever, 99, pivoted at 100 upon a bracket seen-red to the framework, the said lever being raised at the proper time by a cam, 101, upon the driving-shaft A The movement of the lever 99 effects the longitudinal reciprocations of the soldering-iron in contact with the can-body, the lever being held down against the said cam by a suitable spring, 102, (see Fig. 18,) thesaid cam having two projections to vibrate the lever 99 twice during each rotation of the shaft A To prevent the overrunning of the table a when actuated by the pawl a ,before described, I have provided the hub of the ratchet-wheel with a collar, 69, to which isjointed,bya horizontal pin, 70, an armor lever, 71, which rests upon a lever, 72, pivoted at one end, as at 73, upon an ear secured to the frame-work, the outer end of the said lever having attached to it a checking spiral spring, 74, one end of which is in turn fixed with relation to the frame-work. The le er 72 serves as a rest for the arm or lever 71, the spring 74, by its action upon the said arm or lever 71, keeping it pressed down upon the top of the lever 72, the descent of the said lever 72 being, -however,determined bya notched bracket, 75, which is erected upon the framework. (SeeFigs. 2 and 3.) The lever 72 is raised by-a cam, 76, secured to the shaft h. A lever, 77, pivoted at 78 on a lug secured to'the frame-work, is also moved by the said cam 76 in a direction to cause it to move the lever 77 in adirection opposite that of the spring 74.

The cam 76 is so shaped and located upon the shaft h that, while the table is held stationary by the locking device A before described, the lever 71 is permitted to move under the action of the spring 74, andjust as the end of the lever or arm arrives near the lower end of the bracket A the cam 76 lifts the lever 72 sufficiently to enable it to place the outer end of the arm or lever 71 in line with the lower end of the said bracket in such position that the bracket, just after the rotation of the table is commenced by the pawl a acting upon the ratchet-disk 0?, will strike the arm 71',and thereafter the movement of the table to place in position the mandrel containing the next sheet of tin to be soldered has to elongate the said "spring 74, thus exerting a force suffi-' cient to prevent overrunning of the table owing to momentum. As the table arrives in position to have the locking device A engage one of the notches 5 in the lever 77, in its forward movement by the cam 76,the roll 88,c arried by the said lever 77, then acting upon the arm or lever 71, pushes it away from contact with the bracket A and at the same time allows the spring 74 to throw it down upon the top of the lever 72,whichlever is then lowered sufficiently to place it below the lower end of the said bracket A ,in which position the arm 71 is swung horizontally backward by the spring 74.

I have herein shown and described formers having jaws tipped with aluminum and a mandrel having an aluminum strip; but such features are not herein claimed, as they form the subjeotmatter of another application, Serial No. 234,766, filed April 14, 1887. I have also herein shown a single solderingiron; but in the said application I have shown two such soldering-irons, one being employed to solder the seam and the other to sweat or set it.

1 claim 1. The slide-plate having the rests m and the feeders m combined with the rock-shaft and fingers to keep the sheet of tin down upon the rests while the feeders are being moved forward, substantially as described.

2. The slide-plate having rests for the sheet of tin and the feeders m combined with the secondary feeders 32 and the springs 33 to connect them with the slide-plate, and with IOC detents to fall behind the sheets of tin as the I feeders m are moved backward, substantially as described.

3. The slide-plate, its rest for the sheet of tin, the feeders m and the edge-elevating plate 44, combined with a creasing device to slightly bend the overlapping edge of the said sheet of tin as it is being passed into position between the mandreland former, substantially as described.

4. The slide-plate, its rests m for the sheet of tin, and the feeders to move the said sheet, combined with means, substantially as described, for automatically applying solderingfluid to the said sheet of tin, substantially as described.

5. The slide-plate, its attached feeders, and means, substantially as described, to act-upon and bend upward the overlapping edge of the sheet of tin, combined with a holder for soldering-fluid, and with means for delivering the said fluid upon the upturned edge of the said sheet, substantially as described.

6. The combination, with the solder-cutter, of a rosin-holder through which the said outter works, whereby rosin is discharged upon the can-bodyasthe solder-wire is laid thereon prior to being melted, substantially as described.

7. The solder-cutter, combined with the rosin-holder and the movable plate, the latter OOnStituting part of a straightening device for the solder, substantially as described.

8. The mandrel to hold the can-body, combined with a soldering-iron, and with means, substantially as described, to move the said solderingiron both vertically and horizontally, substantially as described.

9. The mandrel, the former to grasp the canbody, the rod 1', and dog 82, combined with the upright to release the dog, and with an inclined track to permit the gradual descent of the said rod and former, substantially as described.

10. The mandrel, the former to grasp the can-body, the rod r, and dog 82, combined with the upright to release the dog, and with an inclined track to permit the gradual descent of the said rod and former, and with the inclined lip to act upon the stud of the rod 1* and start the cutter downward, substantially as described.

11. The rotating table, its series of mandrels, and brackets A, combined with an arm, 71, and a spring, 74, the said arm aiding to check the forward movement of the table to prevent overrunning, substantially as described.

12. The rotating table provided with aseries of mandrels and depending brackets, and a lever, 72, and acam to move it, combined with the arm 71 and spring 74, to operate substantially as described.

13. The rotating table provided with aseries of mandrels and depending brackets, and a lever, 72, and a cam to move it, combined with the arm 71 and spring 74, and with the lever 77 to move the arm 71, as described.

In testimony WhereofI have signed my name to this specification in the presence of two subscribing witnesses.

GHARLES W. SLEEPER.

\Vitnesses:

G. W. GREGORY,

NATHAN H. DANIELS.