US240375A

US240375A - beooks

Info

Publication number: US240375A
Authority: US
Publication date: 1881-04-19
Anticipated expiration: 1898-04-19

Description

(No Model. 8 Sheets-Sheet 1.

W. D. BROOKS. flanSoldering Machine. No. 240,375. Patented April 19,1881.

Fig. 1.

- Inventor: fm. h I Trim, ZIBroo/w MPETERS. Pl-low-UTNOGRAFHER. WASHINGION. I10.

(No Model.) 3 Sheets-Sheet 2.

- W. D. BROOKS. Gan Soldering Machine w No. 24-9375. Patented April 19,1881.

9 *2 ll M Inventor.-

Zay

M4 PETERS PHOTO-LITHOGRAFHER, WASHINGTON n c (No Model.) 3 Sheets-Sheet 3.

W. D. BROOKS.

Gan Soldermg Machine.

No. 240,375! Patented April 19,1881.

Will/warn 113F007 N-PETERs, PHOYO-LITNOGRAFMR, WASHINGTON. l5. 0.

UNITED STATES PATENT OFFICE.

MARYLAND, ASSIGNOR TO HIMSELF AND D. D. MALLORY, OF SAME PLACE.

CAN-SOLDERING MACHINE.

SPECIFICATION forming part of Letters Patent No.- 240,375, dated April 19, 1881. Application filed anuary 27, 1881. (No model.)

1' all whom it may concern:

Be it known that 1, WILLIAM D. BROOKS, of Baltimore, in the county of Baltimore and State ot.Maryland, have invented a new and 5 useful Improvement in Can Soldering Machines; and I do hereby declare that the following is a full, clear, and exact'description of the same.

My invention relates to can making ma- IO chines of that class in which a series of rotating can-seats are carried upon a revolving table, which brings the cans successively to the flame or other appliance for floating or soldering said cans. Ilia-ve represented the devices as applied to the machine shown by me in the patent granted on the th day of November, 1880, and numbered 234,948. The improvements, however, are applicable to all machines of this class.

20 In machines of the class specified the supply of cans to the machine when in operation is tedious and exacting labor, and each machine requires the constant service of one attendant to remove the cans which have been 2 5 soldered and replace them with cans which are to be soldezed.

Machines of the class referred to move regularly step by step, and as rapidly as the nature of the machines will permit, some of them be- 0 ing capable of floating 'three thousand five hundred cans at both ends in an ordinary working day. Motion of the revolving wheel is arrested at any time only long enough to float or solder a single can, and during this interval a can which has been soldered must be removed from the seat at some point upon the wheel and an unsoldered can put in its place. This requires very rapid as well as accurate manipulation on the part of the attend- 0 ant, and, continued during the day, is very laborious work. Moreover, the cans, after being floated or soldered, must be removed before the metal is cooled, and they are still too hot to handle without discomfort. In addition to 5 the heat, the brightness of the tinned surface affects the eyes of the attendant, who must watch closely the cans as he removes them.

To obviate these difficulties, and to so lessen the labor that one person (who may be a boy or other unskilled laborer) may attend with case a number of machines at once, is the object of my invention. 7 v

I have also, in order to further facilitate and quicken the operation of the machine, added thereto a solder-bath, whereby the end seams may be soldered more rapidly by dipping in solder.

The first part of my invention relates more particularly to the automatic supply of the cans to the can-seats of the machine for the purpose of floating or soldering, and to the automatic delivery of the cans from the machine after they are floated or soldered.

The second part of my invention relates to the combination, with the wheel and rotating can-seats, of devices for soldering by immersion of the seam of the can into melted solder, these devices being adapted to operate in 0011- nection with those above referred to for supplying and delivering the cans.

Certain details of construction of greater or less importance are also included in the invention, which devices are fully hereinafter explained, and are specifically pointed out in the claims.

In the drawings hereunto attached, Figure 1 represents the machine in general form, sub stantially the same as in my patent referred to above, the table of said machine being in transverse section on a line with the central 8o shaft, with the other parts, including the automatic delivering mechanism, in side elevation. Fig. 2 represents a part of the same machine in like section, with the central shaft, bracket and attachments, and the can-delivering devices in side elevation. Fig. 3 represents the dcliverin g devices in central longitudinal section. Fig. at shows alike transverse section of the table, with a transverse section of the can-seat, and with the metal bath in position upon the table. Figs. 5 to 10 are details hereinafter explained.

The general construction of the machine and of all the parts by which motion is communicated to the table and to-the can-seats is the 5 same as that described in my patent above specified.

Fig. 1 represents the devices for automatically discharging the can from its seat. I contemplate locating these devices at the point upon the table distant from the point where the appliances for soldering are located, equal to five-twelfths of the circumference of the table. It is also contemplated to locate the devices for automatically delivering cans to the disk or other can-seat at the point exactly opposite the soldering-point. By this arrangement the can is discharged from any given seat at the stopping-point next to that where the can is supplied. At the point first indicated is placed a discharge-chute, 1, supported upon a bracket, 2, which is bolted directly to the table. The inner end of the chute 1 is arranged near the path of the annular plates 8 and 9, (or other can-holder,) and opposite the space between said plates, but not so as to, under any circumstances, be struck by them. It is made in any convenient shape, by which it is fitted to receive the can when said can is tipped out of its seat, and to discharge it at a convenient distance from the machine, the chute being inclined, so that the can, when received by it, moves by its own weight.

The can is discharged by means of a tipping-lever, 3, pivoted upon a stud on the table. The upper end of the lever is bent in I ward and transversely, so as to reach behind the can when the can is in its seat, and the extreme end of the lever is extended sufficient] y to take hold of the can, and when the lever is thrown outward to eject the can from its seat into the chute. Motion is imparted to the tipping-lever by means of a cam, 4, on the upper surface of the gear-wheel 5. As shown in Fig. 1, the lower end of this lever extends inward over the surface of the said gear-wheel, andis provided at its extreme end with a vertical pin or finger, which takes behind the campiece 4.

It will be understood that the upper end of the tipping-lever must have sufficient motion to reach behind the can and to draw it quite out of its seat. It is not necessary, however, that the tipping-lever should be drawn out of the path of the can, sinceit removes every can at the same point as fast as they are presented but the motion of the lever must be such that it is returned to its extreme inward limit before any given can is brought into position for removal. This may be accomplished by means of a spring, 6, stretched between the table and the tipping-lever at some point above its pivot, this spring serving to throw the upper end of the lever in as soon as it isreleased from the cam 4. It will be borne in mind that the gearwheel 5 makes one revolution during the time occupied in soldering a single can. It is therefore necessary to place but one cam-piece upon its surface to act upon the tipping-lever, and it is only necessary that this piece should be placed in such position as to commence its action in throwing out the top of said lever the instant the can has arrived at what may be called the fifth station from the solderingpoint-that is to say, the stopping-place opposite the delivery-ohute. When the can has reached this point, therefore, it comes against the upper part of the tipping-lever and in front of its bent end. At that instant the cam-piece 4, which is carried rapidly by the wheel 5, strikes the pin upon the lower end of the lever and throws the upper end quickly outward, thus as quickly ejecting the can into the chute. After the can has thus been ejected, at the proper moment the empty can-seat advances to the next station, which is the sixth in order, and there stops. At that point is located the delivery-chute shown in Fig. 2. This chute (marked A) is mounted upon a bracket, 11, which is bolted to the table. The chute itself is preferably a tube, the upper part of which is cut away at the outer end, so as to readily receive the cans. It rests immediately upon a bed-piece, 12, which extends forward to a point near the outer edge of the upper annular plate,9, or equivalent part of the can-seat. The chute is made preferably of such internal diameter as to allow the cans to pass freely, but without much play, and is inclined toward the inner end, so that the cans will move toward the machine by their own gravity.

A spring-brake, 13, is arranged on the top of the cylindrical part of the chute, and is adapted to press upon the upper surface of the can, as shown in Fig. 3. The brake is applied by means of the system of levers shown clearly in Fig. 2. The lever 14 acts directly upon a yoke, 15, which is connected to an upper crosspiece, 17 by means of a rod, 16, upon each side. These connecting-rods pass through ears 18 on the side of the tubular portion of the chute. A stem, 19, is connected to the central part of the upper cross-piece, 17, and carries the brake 13 upon its lower end. The lower part of the stem 19 is square, and passes through a square hole in the boss upon the upper side of the chute. The brake, when up, rests in a cavity in the upper part of the chute fitted to receive it, and allows the cans to slip freely through the tube. The upper end of the stem *19 passes freely through the cross-piece, so that thebrake is applied by the pressure of the cross-piece acting upon a spring, 20, which bears upon a collar, 21. This collar rests upon a shoulder on the stem, so that as the cross-bar 17 is brought down the force is transmitted through the spring and collar to the brake. The spring is interposed for the purpose of bringing a yielding pressure upon the can and preventing any indentations.

In front of the fixed part of the chute is a movable part, 22, made open on the upper side, and pivoted at its front end at the point 23 in the front end of the piece 12. This movable part 22 is exactly fitted to receive the can, which lies snugly therein, but allows it readily to fall out when the part 22 is tipped, as shown in Fig. 2. Proper tipping motion is given to the movable part 22 by means of link 24, connected to the main lever 25. To this link is also connected, by means of a pin and slot, the lever 14, which operates the brake, so that the brake is applied at thesame instant that. the movable part of the chute is tipped. As the reverse movement brings down the movable part of the chute and at the same time lifts the brake, a second stop mechanism is necessary in order to prevent the forward can from sliding prematurely out of the movable part of the chute and lodging upon its side in the canseat. This stop mechanism consists of a gate, 26, pivoted on the end of the lever 27 and passing through a transverse slot in the piece 12, and in the bottom of the movable chute. The lever 27 is pivoted in a slot in the bed-piece 12, and is connected by a link to the upper end of the lever 24. It will be understood, therefore, that the lever 27, when moved by the link 24, strikes the free end of the pivoted chute 22 and throws it upward, while the same motion puts on the brake 13 and retracts the gate 26. The inclination of the movable chute should be sufficient to tip the can into its seat. As the pivoted chute returns to its position on a level with the fixed part, which, as before stated, happens when the brake is removed, the gate 26 is thrown up through the slot and stops the forward can, which is moved forward byits own weight to that point. The whole movement is effected by the lever 25, which at its inner end is bent so as to extend overthe table, where it is connected to a rod, 28, which passes down through the table and is operated by a cam upon the lower face of the wheel 5, which acts upon the bent end of the said rod and draws it down at the proper moment. This cam is placed upon the wheel 5, so as to act upon the lever 25 at the instant when the empty can-seat has stopped opposite the mouth of the delivery-chute.

As the cans are tipped by the movable part of the deliverychute into place, itis necessary to provide some means for preventing them from falling out upon the other side. This is accomplished by means of the guard 30, fixed to the rear part of the upper annular plate, 9, or to the rim 44, Fig.4. This guardis of proper shape to receive the can and to steady and guide it to its seat. It is made lowerthan the can,as shown in Fig. 1, so as to give room for the tipping-lever to pass above it.

It will be borne in mind that the can-seat, which consists of a thin sheet-metal rim, as fully described in my said patent, is a little below the lower surface of the annular plate 9, so'as to leave a part of the side of the can exposed. It is therefore necessary, both for receiving and discharging the cans, that this can-seat should be elevated. I have provided, therefore, devices for both these purposes similar in construction, and shown in Figs. 1 and 2.

In Fig. 1 the device for elevating thecanseat in order that the can may be readily tipped out consists of a lever, 31, pivoted in a short post on the table. This lever is provided with a rod, 32, which extends under a cam, 33, on the wheel 5, which cam operates in the same manner as that described for mov-- ingthe lever 25, operating the delivering mechanism. It is located opposite and acts at the same time with the cam 4, which moves the tipping-lever. Alike lever, 34, (shown in Fig. 2,) raises the'can-seat into position for receiving the can. This lever is connected by alink to the lever 25, and operates at the same time with said lever.

It will be understood, of course, that .the spider must be lifted from the topof the can before it can be discharged, and mustalso be lifted in order to receive the can. This is accomplished by substantially the same mechanism as that shown in my patent heretofore specified. But as the spider in front of the delivery mechanism in every instance requires lifting at the same time as thatin front of the discharge mechanism, I have provided a pron ged lever, (shown in Fig. 6,) one prongserving for one spider and the other for the other. The short end of this lever books under the inclined face of the same cam,35, which operates the brake mechanism.

The brake mechanism is applied to the canseat both in receiving and discharging. It is the same as that shown in my said patent, and the one change necessary is that the cam 35 is so arranged as to apply the brakes both at the discharging and supplying points.

I have shown in Fig. 10 a modification of the devices for rotating the can-seat and for giving it the required elevation in order to receive or discharge cans, by which modification the brake mechanism heretofore shown may be omitted. In this modification the pinion 36, which is rotated continually by the beveled gear (3, is fixed to a sleeve, 37, supported by means of its collar 38 in the bracket 39. The can-seat is fixed to a spindle, 40, which passes through the sleeve 37 and through the pinion, projecting for some distance below. The canseat is rotated by frictional contact of the wheel 4i with the collar 38, and obviously it can be rotated only when the can-seat is depressed. The organization of the machine as now made by me requires that this can-seat shall be elevated only at the points where cans are to be discharged or received, and those are the only points where the rotation should be arrested. By the construction shown in Fig. 10 it is only necessary that the spindle 40 should be raised in order both to elevate the can-seat and to arrest the rotation, the rotation ceasing as soon as the surfaces of the parts 38 and 41 are separated. The spindle 40 may be raised either by alever, as shown in Fig. 10, or in any other convenient way.

The devices heretofore referred to for soldering the cans are those described in my former patents.

In Fig. 4 I have shown a method for applying asolder-bath to a wheel-machine, whereby the rotation of the cans, heretofore necessary in order to present every part of the seam to the flame, is made to present every partofsuch seam successively to the bath of melted solder.

In this figure, D represents a cup supported upon a bracket, 42, upon the table. The shape of the cup is shown more clearly in Fig. 5, in which the bottom part of the cup 43 is represented as concave beneath, and of thin metal, so that the'solder may be kept in a liquid state by means of the flame playing against said concave bottom. The cup is supported, as shown in Fig. 4, so as to bejust below the path of the ring which incloses the can about the can-seat. This ring (shown at 44) is supported upon a bracket in the same manner as the annular plates in the other figures. It is intended to take the place of said plates and to operate in connection with the solder-bath used instead of the flame applied directly to the cans. The can-seatis arrested when opposite the center of the cup D, and is lowered by means of a lever, 45, so as to dip the seam on the lower side of the can as inclined into the solder. The can is inclined as usual, and while rotated solder is sweated into the seam in a manner well known to those skilled in the art. As shown in said figure, thespecial modification of the can-supportin g devices has been provided to admit of the depression of the can so as to bring the seam into the solder. The spindle 46 passes freely through the hub, but is fixed to the pinion in the usual way. The can'seat is turned by frictional contact with a collar, 47, fixed upon the spindle 46. The collar is separated from the hub by a spring, 48, so that the spindle may be drawn down to lower the can-seat by con'ipressing the said spring, the pinion being made sufficiently wide to allowit to be depressed without getting out of gear with the wheel (J. The spindle is drawn down by means of the lever 45 acting upon a button on the lower end of the spindle 46. The lever is operated by a rod, 49, which rides over the cam 50 on the gear-wheel 5, which cam is so located and constructed as to depress the seat at the instant when it arrives opposite the solder-cup, and to hold it depressed while in that position. As the wheel 5 revolves once during the time while the canseat is opposite the soldering-point, the cam 50 should extend three'fourths of the way around the surface of the wheel 5, which will give three-fourths of the time for the revolution of the can in the solder and one-fourth for the elevation of it while it is passing out and another taking its place. It will be understood thatthe spring 48 holds the can elevated when not thus acted upon by the cam 50.

It will be observed that the mechanism which draws down the spindle 46 is fixed upon the table in this form of the mechanism at the soldering-point. Directly, therefore, the can-seat leaves the soldering-point, it is no longer acted upon by the lever 45, but remains up through the action of the spring 48. It is therefore adapted to operate in connection with the discharging and receiving mechanism without the special elevating devices heretofore described, and when the cans carried by this mechanism arrive at the points specified the spiders are raised and the receiving and discharging mechanisms act upon the can in the raised position in which it approaches. The guard 30 is fixed to the back part of the ring 44, and acts in the manner heretofore described.

In connection with the bath, I use a cup for the can-seat in place of the thin metal flange or ring described in my former patent. The cup shape is necessary in order to permit the seam to be immersed in the bath. To prevent adhesion of the solder to the surface of this cup I make it of porcelain or some equivalent material, so that no solder will adhere thereto.

Having thus described my invention, what I claim is-- l. The combination of a revolving wheel carrying rotating can-holding devices with an automatic delivery-chute adapted to deliver cans to the said holding devices, substantially as set forth.

2. The combination, with a revolving table and rotating can-holding devices, of a discharge-chute and-ejector, whereby the can is automatically sciaarged, substantially as described.

3. The combination, with the revolving wheel of a can-soldering machine and with rotating can-holding devices mounted on said wheel, of an automatic can-discharging device and an automatic supplying device, whereby soldered cans are discharged and unsoldered cans supplied, substantially as described.

4. The chute A, supported in an inclined position, in combination with the tipping part 22, the brake and gate, and means, substantially as described, for automatically operating such brake and gate.

5. The combination of the brake in the chute A and the lever 14 connected therewith with thechute 22, lever 27, connecting-bar 24, and an operating-lever, substantially as described.

6. In combination, the chute A, the tippingchute 22, a cam on the gear-wheel 5, and connections, substantially as described, by which the chute and gate are automatically operated.

7. In combination with mechanism, substantially as described, for delivering cans to the can seat, mechanisms, substantially as described, for automatically lifting said seat.

8. The combination of the can-seat, the spindle carrying the same, and adapted to move vertically in the bracket, with the can-delivering devices and mechanisms for raising said spindle, substantially as described.

9. The combination of the spindle 40, carrying the rotary can-seat, the sleeve 37, fixed to pinion 36, and having collar 38, the wheel 41,

and bracket 39, and mechanism for lifting said spindle, these parts being adapted to arrest rotation and assist in discharging the can, and to operate in connection with discharging or delivering devices, substantially as described.

10. The dischargech'ute 1, in combination with the tipping'lever 3 and mechanism for lifting and arresting the rotation of the canseat, substantially as described.

11. In combination with a series of rotating IOC can-supports V mounted on a table, and with broad pinion, the bracket, collar 47, and spring means for raising and lowering and bringing 48, and the mechanism for drawing the spindle them in succession to any given point, a soldercup fixed in position to permit the seam of 5 the can, when lowered, to be immersed in the solder.

& 12. In combination with the solder-cup D, 1 the ring 44, supported on the bracket, and the can-seat rotating and lifting mechanism, the

10 same consisting of the spindle 46, fixed to the down, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subz 5 scribing witnesses.

WILLIAM D. BROOKS. Witnesses:

E. A. DIo F. L. MIDDLETON.