US1606906A

US1606906A - Vania

Info

Publication number: US1606906A
Authority: US
Publication date: 1926-11-16
Anticipated expiration: 1943-11-16

Description

Nov. 16,1926. 1,606306 J. W. SMITH MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 1923 9 Sheets Sheet l INVENTOR.

. I BY ohm/N MIT/7' MTN Eji ORNEY Nov. 16 1926. 1,606,906

J. w. 'SMJTH MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 1925 9 Sheets'-Shet 2 INVENTOR. JoH/v N Nov. 16 192s. 1,606,906

J. W. SMITH MACHINE FOR ROLLING METALLIC DISKS Filed May 24. 1923 9 sheets sheet 3 3.2 .62 a I 51 M 0 $4 46 M g; 4} II o 45 as, v 4.9

I M 'J I filO \1 I k INVENTOR.

ZMMHN M51111! memos Nov. 16 1926.

J. W. SMITH MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 1923 9 SheetS-Shet 4- [N V EN TOR.

Nov. 16 192 s. emme J. W. SMITH MACKINE FOR ROLLING METALLIC DISKS Filed May 24, 1923 9 Sheets-Sheet 5 Iii I 29 1N VEN TOR.

A ORNEY Nov; 16 1926.

J. w. SMITH MACHINE FOR ROLLING METALLIC DISKS 9 Sheets-shat 6 Filed May 24, 1923 II .97 f 8] INVENTOR.

Jan/v N nnw By W TORNEY h/ TAIL-"s5."-v

Nov. 16 1926. 1,606,906

- J. w. SMITH v MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 192: 9 Sheets-Shed v Nov. 16 1926.

J. w. SMITH MACHINE FOR ROLLING METALLIC DISKS a .7 8 y i. N m M .0. z a m m w WW @a 9 w 3 MM, y m w m NOV" 9 V J. w. SMITH MACHINE FORYROLLING METALLIC nxsxs Filed May 24, 1923 9 hi' gh t 9 WEN, MM 7 i w k f Ejm W'- 1 N VEN TOR.

Jon/v M (FM/TH k/H'NESSP- I ATTORNEY.

te l F".

JGEN W. SMITH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T BUDD VJ'I-IEEL (LOIVIFANY, OF PEZLADELPHIA, PENNSYLVANIA, A CORPORATION OF LPENNSYL- VANIA.

MACHINE FOB ROLLING- METALLIC DISKS.

Application. filed May 24, 1923. Serial No. 641,240.

My invention relates to improvements in machines for rolling metallic disks and has to do, more particularly, withdisk rolling machines of the type described and claimed in my co-pending applications, Serial No. 408,231, process of and apparatus for rolling metallic disks, filed September 4, 1920, and Serial No. 414,848, machines for rolling disks, filed October 5, 1920.

in my pending applications, I have de scribed and claimed machines for rolling metallic disks in which a blank is mounted upon a rotating table and acted upon by rolls which are traversed radially of the blank as the table rotates. These rolls are of such form that they have a combined spinning and rolling action :upon the blank, which reduces it in thickness'and increases its diameter, bringing the finished disk 'to any desired cross-section, depending upon the configuration of the table 'or support for the blank. The principal object of my present invention is'to improve upon the machines of these pending applications so as to provide machines for'rolling metallic disks which will be particularly efficient and capable of operation at comparatively high One object of my present invention is to' provide improved means for raising and lowering the rolls with respect to the table and for traversingthe rollsfradially with respect to the axis of the table. Aleading object of my present invention is to pro-' vide simpler and more effective mechanism for moving the rolls with respect to the table.

A further object of my present invention is to provide means for ejecting a finished disk from and feeding a blank to the machine without stopping it, so that the operation of the machine may be made substantially continuous.

Further objects, and objects relating to details and economies of construction and operation, will definitely appear from the detailed description to follow. In one instance, I accomplish. the purposes of my invention by the devices and means described in the following specification. My invention is clearly defined and pointed out in the appended claims. A structure constituting a preferred embodiment of my invention is illustrated in the accompanying drawings, forming a part of this specification, in which:

Fig. 1 is a view in front elevation of a machine embodying my invention, the blank placing and ejecting means not being shown.

Fig. 2 isa view of the machine in side elevation.

Fig. 3 is a vertical, sectional view through the machine, taken onthe line 3 3 of Fig. 2.

Fig. 4 is an enlarged view, partly in section and partly in side elevation, of the table supporting the blank, the rolls which act on the blank and the roll carriers. 7 Fig. 5 is a view inside elevation of the cams and connected parts causing radial movements of the rolls with respect to the axis of the blank.

Fig. 6 is a view of the parts shown in Fig. 5, looking from the left of said figure.

Fig. 7 is a view in side elevation of the cam and connections for raising and lowering the rolls with respect to the table on which the blank is supported.

Fig. 8 is'a view otthe parts shown in Fi 7, looking at them from the left of F ig.

Fig. 9 is a horizontal, sectional view through the machine, taken on a line just above the table and showing the feeding and ejecting device.

Fig. 10 is a detail, sectional view of such device, taken on tl e line 1010'ot Fig. 9.

Fig. 11 is a detail. sectional vi w, taken on the line 11-11 of Fig. 9.

Fig. 12 is a detail, sectional view, taken on the line 12-12 of Fig. 1.

Fig. 13 is a detail, sectional view, taken on the line 1313 of Fig. 2, showing the means for driving the cam shat-t.

Fig. 14 is a detail, sectional view taken on the line 14-14 of Fig. 4.

' Figs. 15 to 19, inclusive, are sectional views through the table and a blank thereon, showing successive stages in the opera tion of ejecting a rolled disk and feeding a blank to the table.

Figs. and 21 are enlarged, sectional views on lines 20I2O of Fig. 1 and 2121 or" Fig, 18, respectively, and

Fig. 22 is a sectional view through the feeding device, taken on line 2222 of Fig. 9.

' axis of the table.

In the drawings, the same reference numerals refer to the same parts throughout the several'views and the sectional views are taken looking in the direction of the arrows at the ends of the sectionlines.

In my said pending applications, Serial Nos. 408,231, and 4,848, the blank is supported-on a rotating table and acted upon by rolls which engage the blank under pressure and are moved radially of 'the blank,

from the center outwardly, while the table rotates. Means are provlded for separating the rolls and the table to permit the removal of the rolled di'sk and the insertion of a blank to be rolled. In my application, Se-

" nism for causing such movements of the rolls at the proper intervals. The rolls are carried bya part of the machine whichis capable of vertical movement with respect to the table on which the blank is supported. This movable part of the machine carries suitably drivencams which not only cause this part and the rolls to rise and fall at regular intervals, but also cause radial movements of the rolls with respect to the These cams are such that the movementof the rolls from the center outwardly of the table maytake' place at a slower rate than the return movement of the rolls toward the central position, the latter movement taking place while the rolls are raised from the table to permit a change of blanks. This cam mechanism permits the vertical and radial movements of the rolls to follow each other in a predetermined sequence, so as to establish a cycle of operation in which theseseveral movements follow one after the other and may takeplace at different rates ofspeed. This permits me to make the mechanism particularly speedy and eflicient since return movements of the rolls may be made considerably faster than the working movements.

The vertically-movable carriage, on which the rolls are mounted, carries a suitably driven cam shaft on which a plurality of One of these cams acts cams are fastened. upon a rocker arm which transmits rocking movement to a pair of bell-cranklevers fulcrumed at fixed points in the frame of the machine and connected by links'to the movable carriage, so that these bell-crank levers raise and lower the carriage and exert a powerfultoggle action to force the carriage toward the table and cause the rolls to bear with considerable pressure upon the blank.

One or more of the cams on the cam shaft act upon a rocker arm which is connected to a pair of bell-crank levers fulcrumed at opposite-sides of the movable carriage and connected to roll-carriers which slide transversely of the carriage and which carry the 'rolls acting upon the blanks. The cams on the cam shaft may-be so arranged with respect to .each other that the rolls are, first,

'moved downward toward the blank, then swing around both a vertical and a horiz'ontal axis, the end of said arm'being adapt: ed to support a blank to be rolled. This arm is so mounted that a blank supported upon it may be swung into working position on the turningtable. A blank is supported and held in centered position by this device and inserted between the rolled disk and the table so that it serves to lift the rolled disk from the centering device of the table and shove it from the machine by the same movement which brings the new blank into alignment with the centering device. The feeding device may then be withdrawn,

leaving the blank in proper position on the table. This arm constitutes a carrier upon which a blank is'mounted by the operator. When the blank in the machine has been rolled, the operator swings this arm so that the blank upon it is inserted between the rolled disk and the table and lifts the rolled disk from the table so that it clears the centerin'g device. 7 A part on the feeding device contacts with the periphery of the rolled disk and further movement of the arm ejects therolled disk from the machine and brings the fresh blank to proper position for: en-

gagement withthe centering device of the table. When the blank is properly engaged with such centering device, the arm maybe withdrawn, leaving the blank in working position on the table, ready to be engaged by the rolls. This feature of my present invention consists injproviding a carrier for the blank which may be moved into such relation with the rotating table as to eject a rolled disk therefrom and deposit the blank in working position upon the table.

The machine illustrated in the accompanying drawings constitutes one embodiment of my present invention which has been found to be satisfactory and which I believe, at

the present time, to be preferred. Referring to the numbered parts of the drawing, this machine comprises a base, 10, on which 1s journaled the rotating .table, 11, said table being rotated by means of the shaft, 13, carrying the pulley, 12, and connected by belt, 1 1, with the motor, 15. The upper face, 16, of the table, 11, forms the support for the. blank and its configuration determines the cross-section of the rolled disk. This particular machine is for rolling tapered disks which decrease in thickness to ward the periphery and, therefore, the face, 16, is slightly conical and concave. At the center of the table,there is a cup-shaped recess, 17, within which is located a centering stud, 13, which extends somewhat above the face, 16, of the table and which is axially disposed with respect to the table.

l1 rom the four corners of the base, 10, thecolumns, 19, Xtend upwardly. Vertical tie-rods, 20, extend through the base, 10, and the columns, 19, and for a considerable distance above the upper ends of the columns, constituting guide rods upon which the vertically-movable carriage is mounted. These tie-rods, 20, are rigidly fastened to the base, 10, due to the engagement of the collars, 22, lined on such rods, with internal shoulders in the columns, 19, and the engagement of the nuts, 21, threaded on the lower ends of the rods, 20, with shoulders on the base. The rods, 20, extend vertically upward through bores, 23, provided in the verticallymovable carriage, 2 1, and guide said carriage in its vertical movement. The upper end of each column,-19, is split, at 25, and internally threaded and receives an eXternally-threaded sleeve, 27, which may be adjusted in the upper end of said column. and locked in adjusted position by means of the bolts, 26, which clamp the split portions of the column around said sleeves. Thev tie rods, 20, pass freely through these adjustable sleeves, 27, and the upper ends of such sleeves form stops to limit the downward movement of the carriage, 24. By adjust ing these sleeves in the upper ends of the columns, 19, the lowermost position of the rolls with respect to the table, 11, may be determined, thus determining the thickness of the disk which is rolled. The sleeves, 27, may be provided with a series of markings, 23, so that the position of the rolls may be determined accurately and changed from time to time. The upper ends of the tierods, 20, extend through the cross rods, or bars, 29, and are rigidly secured thereto by nuts, 30 and 30, screwed on the ends of the tie rods and engaging the upper and lower surfaces of such cross bars, respectively.v

tions of such cross bars are cylindrical, so as to form bearing shafts for certain moving parts of the roll-actuating mechanism.

In the lower surface of the carriage, 24, there is a transverse guide-way, 31, which receives the sliding roll-carriers, 32'. These carriers, 32, are each provided with ears, 122, extending from opposite sides thereof, and having slots, 123, within which the felt rollers, 121, are journaled on the pins, 120. These rollers work within the guide-way, 31, and bear upon the upper and lower surfaces of said guide-way in an oil trough, 121, provided therein, to lubricate the phos phor-bronze strip, 124,,secured to the upper wall of the guide-way, 31, and forming a track on which the roll-carriers, 32, slide, when shifting the rolls radially of the blank, under pressure, during'the working stroke of the machine. There are two roll-carriers, 32, slidably supported in the guideway, 31. Each of these roll-carriers has the spaced depending arms, 33 and as, between which a roll, 35, is mounted so as to revolve. This roll, 35, has a conical, lea-ding face, 36, and a cylindrical rolling surface, 37, and it is fastened to a shaft, 38, which is journaled in bearings carried by the arms, 33 and 34, respectively. On the inner end of the shaft, 38, there'is mounted the cylindrical roller bearing, 39, which is held on the end of the shaft by the retaining member, 40. The member 40, engages the inner race of the bearing and is secured to the shaft, 38, by the screw, 41. The roller bearing, 39, is housed within a cup-shaped recess formed in the arm, 33, and it is retained in such recess by the plate, 412, which extends over the end of'the bearing and the shaft, 32, and is bolted to the arm, 33. A cup-shaped member, 13, surrounds the other end of the shaft, 38, and is received in a seat formed for it in the arm, 3%, of the roll-carrier. This cupshaped member receives a ball bearing, 4A, mounted on the shaft, 33. The ball bearing is held in place on the shaft by the nut, 15, screwed thereon. The cup-shaped member, 43, is retained in position in the arm, 341, by an end cap, 16, which is bolted to the cup shaped member, 13, and also to the arm, 3 1, of the roll-carrier, 32. This end cap, 46, has a depending lug, 4:7, to which a link, -18, is pivoted. The opposite-end of said link is pivotally connected, at 50, to a pin, 49, which is adjustably carried at the end of one arm of a bell-crank lever, 51. In order to provioe for the adjustment of the pin, 49, with reference to the bell-crank arm, so as to vary the radial movement of the roll, the pin, a9, is threaded and nuts, 52 and 53, screwed on the threaded pin engage opposite faces of the bell-crank arm. It is evident that the movement of the rolls, 35, may be varied by adjusting these nuts on the pin, 49.

The cross rods, 29, are extended to one ELU side of the machine, as shown in Fi 2, and support a platform, 54, on which an electric motor, 55, is mounted as shown in Fig. l. The driving pulley, 56, mounted on the armature shaft of said motor, is connected by the belt, 57, with the pulley, 58, which is journaled on a support, 66, carried by the movable carriage, 24:. A male clutch member, 59, turns with the shaft, 62, and. coop-- crates with a fixed brake member, 60, or

with a female clutch member turning withwhich are fastened to the movable carriage,

24. Springs, 127, surround the lower portions of these rods, 12-5, and are compressed between the nuts, 128, screwed on the lower ends of the rods, and the plates, 126. These springs help to counterbalance the weight of the vertically-movable carriage, as, and the parts carried thereby, so that less work is required of the cams and connected parts in order to raise therolls, 35, from the table, 11.

The bell-crank levers, 51, to which reference has already been made, are journaled on pins, 68, carriedby cars, 69, projecting from the sides of the vertically-movable carriage, 24. One arm of each of these bell cranks extends downwardly and is adjustably connected, in the manner which we have described, to one of the two roll carriers. The other arms of the bell-crank levers, 51, extend inwardly of the machine, substantially as shown in Fig. 1, and are pivotally connected to link, 70. (See Fig. 5.) The upper end of the link, 70, is pivotally connected to the lower end of a connecting rod, 71, the upper end of which is pivotally connected, at 72, to one arm, 73, of a rocker, 74, journaled on a cross shaft, 75, carried by the support, 66. One arm, 73, of this rocker member carries the roller, 78, and the opposite arm, 76, carries a roller, 77. The roller, 77, is engaged by a cam, 7 9, fast on the shaft, 67, and the roller, 78, is engaged by a. cam, 80, which is also fast on the shaft, 67. [is the cam shaft, 67, ro tates, the rocker member, 7 is caused to rock back and forth'on tl e shaft, 75, at predetermined intervals, thus imparting to the bell-crank levers, 51, the movements necessary to move the rolls in and out, radially of the table, at the proper intervals.

As the cam shaft, 67, rotates in the direction of the arrow, (see Fig. 5) the cam, 80, engaging roller, 78, gradually rocks the the opposite direction restoring the rolls to the central position which they occupy in Fig. 1. The cams, 79 and'80, are so ar-' ranged with respect to each other that, when-the tip of cam, 79, is in engagement with roller, 77, the cam, 80, is just ready to act on roller, 7 8, so that the outward movement of the rolls takes place substantially at the end of their return movement. The

came, 79 and 80, are so shaped that cam, 7 9,-

acts during a little more than a quarter of a revolution of the cam shaft, 67, and cam, 80, acts during about two-thirds of a revd l'ution of the shaft, so that the return movement of the rolls is effected in about half the time required for the outward movement. 7

G11 the cross rods, 29, the knuckle members, 81 and 82, are journaled. Each of these members has a cylindrical hub through which the corresponding cross rod, 29, extends. Near the ends of such hubs are providedthe depending ears, 83, one pairof such ears being adjacent each end of each hub. Links, 8 1, pivotally connected to the movable carriage, 24:,near the four corners thereof, have their upper ends 'pivotally connected to the ears of said knuckle members. Said ears andlinks are so con; nected as to form toggle linkages connecting the movable carriage, 2a, and the fixed cross rods, 29. Arms, 81 and 82, extend upwardly from these knuckle members and a connecting link, 87, is pivotally connected at '85 with the upper end of the arm, 81,

and, at 86, to the upper end of the arm, 82.

This equalizes the motion of the knuckle members 011 opposite sides of the machine.

An adjustable link, 89, is pivotally connect ed at 88 to the arm, 82, and the upper end of this link is pivotally connected, at 96. to

the rocker member, 90, which is journaled on the cross shaft, 91, carried by the support, 66. ()ne arm, 92, of the rocker member, 90, carries a roller, 93, while the other arm, 94, carries a roller 95. These rollers engage a cam, 97, which is fixed on the cam shaft, 67.

As the cam shaft revolves, the cam, 97, imparts a rocking motion to the member, 90, and such rocking motion is transmitted to the knuckle members, 81 and 82. The ears, 83, of such members form, with the links 8 1, toggles. In Fig. 7, the toggles are shown in closed position, in which the car-- riage, 24, is forced downwardly and the rolls, 35, are forced against the blank on the table, 11, under great pressure. As the cam, 97, revolves in the direction of the arrow, (see Fig. 7) the rocker member, 90, will be held in the position which it occu pies so long as the curved edge, 97, of the cam, contacts with the roller, 95. This keeps the toggle linkages straight and the carriage is held in its lower position under great pressure. while the rolls are given a radial motion by the mechanism previously described. After the curved edge, 97 ,moves out of engagement with the roller, 95, the rotation of the cam shaft, 67, brings the surface, 97 into engagement with the roller, 93. This rocks the member, 90, in a direction to break the toggle linkages and to raise the carriage, 24, from the table, 11. -When the curved surface, 97, is engaged by the roller, 93, the carriage is held in such elevated position until the roller, 95, engages the edge, 97", of the cam. This takes place at the instant when the roller, 93, moves out of engagement with the curved edge 97, and causes the movement of the toggle linkages to closed position so that the carriage, 24, is forced toward thetable under great pressure.

I have provided a feeding device which cooperates withthe rotating table, 11, to eject a rolled disk from such table and to deposit a new blank in working position upon the table, while the latter continues to rotate. In this embodiment of my invention (see Fig. 22), the feeding device consists of an arm, 102, pivoted, at 101, to a bracket, 100, projecting from the base, 10, of the machine. A block, 104, is journaled on a vertical pin, 108, at the end of the arm, 102, and this block carries a horizontal stud, 105, on which is journaled a block, 106, which is fastened to a lever, 107. A blank-supporting plate, 108, is fastened to the forward end of this lever and is shaped as shown in dotted lines in Fig. 9, having a concave recess, 108, at its end, to fit the centering stud, 18, of the table, 11. This plate is adapted to sup port a blank to be rolled, as shown in Fig. 10. A strip, 109, is fastened to the upper surface of the lever, 107 and has its end 110 bent downwardly toward the plate, 108, so as to yieldingly engage the upper surface of a blank supported on said plate. The blank supported by said plate is held centered with respect thereto by means of an arm, 112, which is pivoted, at 113, to a bracket carried by the lever, 107, and which carries a rod, 114, at its free end, having anfenlarged collar, 116, at its lower end, adapted to fit in a central opening formed in the blank. This rod has a handle, 115, and it is held yieldingly in position by a spring, 111, which engages the member, 112, at the hinge joint, 113. A handle, 117 is fastened to the lever,107,by means of which the device may be tilted and swung from one side tothe other, as may be necessary in ejecting a finished disk and feeding a new blank to the machine. A strap, 118, which is fastened to the arm, 102, carries two set screws, 119, which contact with the lever, 107, and limit its tilting n'rovement about the stud, 105. A spring, 129, interposed between the plate, 118, and the lever, 107, serves to help counterbalance the weight of the blank supported in the device so as to make it easier to manipulate. A set screw, 130, carried by the arm, 102, engages one of the columns, 19, of the machine and limits the swinging movement of the device, about the pivot, 101, toward the machine. This set screw may be so set that the swinging movement will be stopped when the rod, 114, is in line with the centering stud, 18, in which position the new blank may be discharged from the device and deposited upon the rotating table, 11.

The operation of this machine will be apparent from the foregoing description of the parts thereof. When the rolls, 35, are raised from the table, 11, the blank, 13, is placed upon the table with the centering stud, 18, positioned in a central opening formed in the blank. This may be done by means of the feeding device which we have described, or the machine may be stopped when the rolls are in elevated position and the blank placed upon the table by hand. The table, 11, rotates continuously, being driven by the motor, 15. Of course, suitable clutch means may be provided between the motor and the table for controlling the operation of the latter. The mechanism for actuating the rolls, to raise and lower them and move them radially of the table, is driven by the motor, 55. Such mechanism is actuated by the cam shaft, 67, which is carried by the movable carriage, 24, and rises and falls with the carriage. The belt connection, 57, between the motor, 55, and pulley, 58, permits of this movement of the cam shaft, 67, and the pulley, 58, with respect to the motor which is supported on the fixed cross rods, 29. A clutch is provided between the motor and the cam shaft, 07, so that the operation of the cam shaft may be controlled by the operator. As the cam shaft, 67, rotates, the cams, 79, and 97 rotate with it and act upon the rocker members, 74 and 90. The action of the cams upon these rocker members has already been described. Assuming that the parts are in the position shown in Figs. 1, 4 and 5, the cam,80, first acts on the rocker member, 74, to gradually move the rolls, 35, radially outward with respect to the table, 11. When the rolls have reached the limit of their outward move ment, there is 'a'slight dwell, during which v, in)

1 neeaeoo the'rolls do not have any radial movement and, at that time, the cam, 97, begins to act on the rocker member, 90, swinging the knuckle members, 81 and 82, so as to break the toggles formed by the cars, 83, and links, 84, and lifting the vertically-movable carriage, 24. hen this upward movement of the carriage commences, the cam, 79, begins to act on the roller, 78, of the rocker member, 7 1, and moves the rolls, 35, to their starting position adjacent the axis ofthe table. The curved e lge, 97, of the cam, 97,

riage, 2 1, toward the table, 11.

acts on the roller, 93, of the rocker member, 90, so as to hold the carriage in raised positionfor an interval long enough to permit the insertion of a new blank on the table. At

'the end of this interval, the edge, 97", acts upon the roller, 95, swinging the rocker member, 90, to such position as to straighten out the toggle linkages, formed by the cars, 83, and. the links, 8 1, and forcing the cam lVhen the carriage has thus been forced down to bring the rolls into operating contact with the blank on. the table, the curved edge, 97, of the cam engages the roller, 95, and holds the rocker member in such position that these toggle linkages must remain straight and the carriage is held clamped in such position as to press the rolls against the blank. At the end of the radial outward movement of the rolls, this pressure is released by the cam, the carriage is moved upward and the cycle of operations is repeated.

While the rolls, 35, are operating upon a blank placed upon the table, 11, to increase its diameter and reduce its thickness by a combined spinning and rolling action, the operator places a new blank upon. the feeding device, which has been swung to one side. The blank, B, rests upon the supporting plate, 108, and extends between said plate and the end 110 of strip 109, which'yieldingly engages the upper surface of the blank.

The blank is so located upon the plate that the notch, 108, at the end of the supporting plate, is in line with an opening formed in the center of the blank. After the blank has been placed in proper position on the supporting plate, the arm, 112, is swung down so that the collar,.116, on the lower end of the rod, 114, enters the central opening in the blank and cooperates with the notched end, 108, of the supporting plate to hold the blank centered. The collar, 116, is cut away. at 11.6, on the side opposite from the end of the lever, 107, for a purpose which will presently appear. The blank is positioned upon the supporting plate ofthe feeding device in the manner thus described, while the machine is operating to roll out a blank which has previously been placed upon the table. As soon as the rolling operation has terminated and the rolls, 35 rise rom. the e, 1. he p rat swings, the

feeding device'carrying a new blank toward the table to eject the rolled disk, A, and deposit the blank, B, in working position upon the rotating table. The operation of ejecting a rolled disk and feeding a blank to the table is shown very clearly in Figs. 15 to 19, inclusive. Fig. 15 shows the rotating table, 11, with a rolled disk, A, thereon.

Fig. 16 illustrates the beginning of the operation of ejecting the rolled disk. The edge of a blank, B, mounted on the feeding device, is inserted between the table, 11, and the disk, A, and may be shoved between these two parts until the rod, 114, of the feeding device, engages the periphery of the disk, A. With the blank, B, in this position, the op erator may pry the disk, A, from the table by tilting the lever, 107, about the horizontal stud, 105. This serves to lift the disk, A, so that the central opening in such disk clears the centering stud, 18, of the table. The operator continues to move-the feeding device so as to bring the central opening of the blank, B, into line with the centering stud,

18, of the table and, since the periphery of the rolled disk, A, is engaged by the red, 11 1, or the collar, 116, carried by it, this move ment of the feeding device forces the rolled disk, A, from the table and discharges it from the opposite side thereof, at the same time that the blank, 13, is centered with respect to the table. This operation is clearly illustratedin Fig. 17. WVhen the blank, has been brought to centered position, the notch, 108, of the supporting plate, 108, engages the centering stud, 18, of the table and by tilting the lever, 107, the blank is allowed to drop to working position on the table and in this movement the end of thecentering stud, 18, engages the notch, 116, formed in the collar, 116, of the rod, 114, and lifts the collar, 116, from the central opening of the in Figs. 18 and 20. The operator now withdraws the feeding devicewhile the centering stud, 18, engages in the central opening in the blank to hold it centered on the table. The supporting plate, 108, is moved from between. the blank, B, and the table, 11, and the blank, 13, drops to working position upon the table. The collar, 116, being cut away, at 116, at the side opposite the lever, 107, permit-s this withdrawal movement. At the same time, the cutaway portion, 116, of the collar, 116, engages with the centering stud, 18, when the blank is moved to centered po sition and helps the operator to guide the device andcenter the blank properly. 19 shows the blank in working position upon the table after the withdrawal of the feeding device. The operation of ejecting the rolled disk and feeding the. new blank to the table can be readily performed by what is practically one continuous movement of the feedill easily and quickly so that the rolled disk can be ejected and a new blank fed to the table during the interval in which the cam mechanism holds the rolls, 35, in elevated position; The table, 11, may rotate continuously during this feeding operation and it is not necessary to stop the rotation of the cam shaft, 67, since an operator may easily discharge the roller disk and feed new blank to the table during the interval in which the rolls are held raised in the normal operation of the cam mechanism.

It will be noted that the feeding device is pivot-ed on av pin,-103, carried by the arm, 102, and that the arm, 102, is also pivoted, at 101, on a vertical axis. In the usual movements of the feeding device, it swings around the axis, 101. In case the rolls, 35, should descend and engage the blank before the feeding device has been withdrawn, the ac tion of the rolls upon the blank would tend to turn the feeding device around the axis, 103, so that it would be swung away from the table without doing any harm. The block, 10 1, which carries the stud, 105, on. which the lever,-107, of the feeding device is pivoted, is frictionally connected with the arm, 102, so that, ordinarily, it does not turn around the axis, 103, although it may do so in case extra stress is put upon it. This frictional connection is effected by forming the arm, 102, of two spaced straps, 102, between the outer ends of which the block, 104, is located. The bolt providing the axis, 108, is carried by the outer ends of these straps and pass-es through the block, 104, as shown in Fig. 22. This bolt, or an additional bolt (not shown), connects the two straps adjacent the block, 10%, and draws them toward each other so that they engage the block, 104, frictionally, and tend to hold it against turning movement on .the axis, 103. This arrangement acts as a safety device in case the rolls should descend before the feeding device has been withdrawn.

The machine which I have described herein may be'used for rolling disks either hot or cold. Of course the movements of the rolls will be varied so as to regulate the amount of reduction in thickness of the blank, which will be different when the blank is heated before rolling, from what it would be w on operating upon a cold blank. This machine .liay be used for tapering a blank of uniform thickness or it may be used with a blank of tapering cross section which it is desired to roll in order to effect some reduction in thickness and increase in diameter and in order to improve the surface of the blank. I have found that the surfaces of tapered disks will be very much improved, so that they, take paint or enamel more satisfactorily, if they are rolled in this machine so as to cause a flow of metal and reduction in thickness and increase in rolls radially of the blank, toward and .41

ruined sequence and at predetermined int rother cross-sections and the formation of the table may be changed without departing from my invention. If desired, the cams may be so constructed thatthe radial movement of the rolls stops before the rolls reach the periphery of the blank so that the peripheral portion of the blank is not acted upon by the machine except as it is bent into a flaring fiange by the action of the rolls upon the central portion of the blank. Such changes in the cams to vary theradial movement of the rolls or the periods during which the rolls are raised and lowered, may be made without departing from my invention.

The disk rolling machine which is illu trated in the, drawings and described specritically in this specification, constitutes one embodiment of the invention set fortl and claimed herein. There are many Variations and modifications of the construction disclosed which will appear to those skilled in this art and which may be made without departing from the spirit of my invention. I desire, therefore, to claim my invention broadly, as indicated by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to so cure by Letters Patent is:

- 2. A machine of the class described comprising a rotating support for a blank to be rolled, a pair of rolls adapted to operate on a blank on said support, and cam mechanism for raising, lowering and movr each other, in a predetermined sequence and at predetermined intervals.

3. A machine of the class described comprising arotating support for the blank to be rolled, a pair of rolls adapted to operate on a'blank on said support, cam mech anism for raising and lowering said rolls with respect to said support, and cam mech anism for moving said rolls radially of the blank.

4;. A machine of the class described C0211- prising a rotating support for the blank to be rolled, a pair of rolls adapted to operate on a blank upon said support, a suitably driven cam shaft, and earns carried by said shaft and connected to raise, lower and move said rolls radially of the blank in a predetervals.

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5. A machine of the class described comprising a rotating support for a blank to be rolled, a pair of rolls adapted to operate on a blank on said support, a suitably driven cam shaft, a cam on said shaft connected to move said rolls away from each other, radially of the blank, a second cam on said shaft connected to move said rolls toward each other, radially of the blank, and a third cam on said shaft connected to raise and lower said rolls with respect to the support.

6. A machine of the class described comprising a rotating table, a carriage verticah 'ly movable with respect to said table, a roll carried by said carriage and adapted to be moved transversely thereof, cam mechanism for raising and lowerin said carriage, and cam mechanism for moving said roll trans versely of the carriage.

7. A machine of the class described comprising a blank support and a radially traversing blank working roll having a relative movement of approach and separation to present the work to and remove it from the action of the roll, and mechanism for causing the relative approach and separation movement and the traverse movement of the roll deriving the power to operate it from a common prime mover.

8. A machine of the class described comprising a rotating table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a roll carried by said carriage and adapted to operate on a blank supported on said table, and cam mechanism carried by said carriage and connected to raise and lower the carriage and to move said roll radially of the table in a predetermined sequence and at predetermined intervals.

9. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a roll carried by said carriage and adapted to operate on the blank supported on said table, a motor supported by said frame, and cam mechanism movable with said carriage and driven by said motor, said mechanism being connected to raise and lower the carriage and move the roll radially of the table in a predetermined sequence and at predetermined intervals.

10. A; machine of the class described comprisinga frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a roll carried by said carriage and adapted to operate on a blank supported on said table, a cam shaft journaled on said carriage, cams on said shaft connected to raise and lower the carriage and to move the roll radially of the table, and a" motor mounted on the frame and having driving connections with said cam shaft.

1,coe,eos

11. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to the table, a roll carried by said carriage and adapted to operate on a blank supported on said table, a cam shaft journaled on saidcarriage, earns on said shaft connected to raise and lower the carriage and move the roll radially of the table, a motor mounted on the frame, and driving connections between said motor and the cam shaft including a clutch and a driving belt permitting vertical movement of the shaft with respect to the motor. I V

12. A machine of the class described comprising a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to the table, a pair of rolls carried by said carriage and at'a pted to operate on a blank supported on said table, a support carried by said carriage, a cam shaft journaled in said support, connections between said cam shaft and the carriage and rolls for raising and lowering i the carriage and moving the rolls radially of the table, and means for driving said cam shaft.

13. A. machine of the class described comprising a rotatably mounted table adapted" said carriage for raising and lowering the carriage with respect to the table.

s. A machine of the class described comprising a rotatably mounted table adapted to support a blank to'be rolled, a carriage verlOO tically movable with respect to the table, a

pair of rolls carried by said carriage and adapted to operate on a blank supported on said table, and cam means for raising and lowering said carriage with respect to the table, said cam means being such as to hold the carriage in raised and lowered positions for predetermined intervals. I

15. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to the table,a roll carried by said carriage ant adapted to operate on a blank supported on the table, and means for raising and'lowering said carriage including a toggle linkage, connecting said carriage and a fixed point on the frame, and means on said carriage for actuating said toggle linkage.

16. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blankto be rolled, a carriage vertically movable with respect to the table, a pair of'rolls carried by said carriageand-adapted tooperate ona blank supported on the table, a pair of knuckle members journaled on the frame, arms on said knuckle members, links connecting said arms with the carriage, and means for rocking said knuckle members on their pivots.

17. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to the table, a pair of rolls carried by said canriage and adapted to operate on a blank sup ported on the table, a pair of knuckle members journaled on the frame, downwardlyextending ears on said knuckle members, links connecting said ears and the carriage, upwardly-extending arms onsaid knuckle members, means connecting said upwardlyextending arms whereby said knuckle members are forced to turn in unison, and means for rocking said knuckle members on their pivots.

18. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movablewith respect to the table, a pair of rolls carried by said carriage and adapted to operate on a blank supported on the table, a pair of knuckle members journaled on the frame, connections between said knuckle members and the carriage, a rocker member journaled on the carriage, a cam acting on said rocker member, and connections between said rocker member and the knuckle members.

19. A machine of the class descrlbed comprising a frame, a rotatably mounted table adapted to support a blank to be rolled,

a carriage vertically movable with respect to the'table,a pair of rolls carried by said carriage and adapted to operate on a blank supported on the table, a pair of knuckle members journaled'on the frame, each of said knuckle members having a pair of spaced ears, links connecting said ears with the four corners of the carriage, and means for rocking said knuckle members in unison on their pivots. 7

20. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a

' carriage vertically movable with respect to the table, a pair of rolls carried by said carriage and adapted to operate on a blank supported on the table, a pair of knuckle members journaledon the frame, connections between said knuckle members and the carrlage, a rockermember pivoted on the carriage, a cam shaft journaled on the carriage,

, operate on a blank supported on the table,

and cam means carried by the carriage for moving said rolls transversely thereof.

22. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blankto be rolled, a carriage vertically movable with respect to said table, a pair of rolls carried by said carriage and horizontally movable with respect thereto, saidrolls being adapted to operate on a blank supported on'the table, a suitably driven cam shaft journaled on the carriagaand a pair of cams carried by said cam shaft and connected to move the rolls horizontally with respect to the carriage, one of said cams moving the'rolls in one direction and the other in the opposite direction.

23. A machine of theclass described com prising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a pair of rolls carried by said carriage and horizontally movable with respect thereto, said rolls being adapted to operate on a blank supported on the table, a suitably driven cam shaft journaled on the carriage, a rocker member pivoted on the carriage, a pair of camson said shaft acting on said rocker member, and connections between said rocker member and the rolls for moving the rolls horizontally with respect to the carriage. I

24. A machine of the class described comprising a frame, a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a pair of rollscarried by said carriage and horizontally movable with respect thereto, said rolls being adapted to operate on a blank supported-on the table,

a pair of bell crank levers pivoted on the carriage, one arm of each of said levers be mg connected to one of said rolls, a rocker member pivoted on the carriage and connected to the other arms of said bell crank levers, a camshaft journaled on said carriage, and a pair of cams on said shaft acting on said rocker member.

25. A machine of the class described comprising a rotatablymounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to said table, a pair of roll carriers slidably mounted on said carriage so as to move horizontally with respect thereto, a roll mounted in each of said carriers-and adapted to operate on a blank supported on the table, a pair of bell crank levers pivoted on the carriage, "an adjustable connection between one arm of each of said levers and one of the roll carriers,.and cam-actuated means for rocking said bell crank levers on their pivots.

26. A machine of the class described comprising a rotatably mounted table adapted tov support a blank to be rolled, a vertically movable carriage having a horizontal guide- Way in its lower face provided with horizon tal tracks at the sides thereof, a roll-carrier provided with rollers running on said tracks, a roll rotatably mounted on said carrier and adapted to operate on a blanksupported on the table, means for r-aisingand lowering' the carriage, and means for shifting the rollecarrier horizontally along said guide- W'ay. v I

97. A machine of the class. described conr prising a 'rotatably mounted table, adapted to support a blank to be rolled, a vertically movable. carriage having a. horizontal guide- Way' inits lower face extending transversely thereof, said guide-way having upper and lower tracks at the. sides. thereof, a roll carrier having ears provided with slots, rollers, positioned in said slots and journaled on the carrier, said rollers; being adaptedto engage the, upper or lower tracks, a roll rotatably mounted in said carrier and: adapted to operate on a blank supported on the table, means for raising and lowering the carriage, and means for shifting the carrier along said I guideway 28-, A machine of the class described 0on1- prising a rotatably' mounted table adapted to; support a blank to be rolled, a carriage movable with respect to, said: table, a rollcarrier slidably mounted on said carriage for movement transversely thereof, said earrierhaving a pair of spaced depending portions, a, shaft 'journaled in said port-ions of the carrier, a roll linedon, said shaft, and retating between said portions, said roll being adapted tooperate on a blank supp rted on the table, an end cap fastened to one of said portions, means tor shitting said carrier transversely of; the carriage,"connected to said end cap, and means for. raising and loweringsaid carriage 29-. A machine of the class described compr si g' a rotatablymounted table. adapted to support blank t be rol ed, a carriage movable with respect to;- said-table, a rollcarrier slidably mounted on said carriage for movement transversely thereoii, said carrier aving a pair or spaced depending porti ns, a nzp shaped member fitted the outermost at said-1 portions, anti friction bearings carried bysaid cup-shaped member and the other depending portion of the. carrier, a shaft journaled in; said; anti-frictron. bearings, a roll; carried by said shaft and adapted to operate on; a blank supported on thetable, an end cap belted to said cup-shaped member and the corresponding p rt on r the ca rier, and. means, connected to said end cap, for shifting said carrier transversely of the carriage.

30., A machine of the class described comprising a rotatably mounted table adapted to support a blank to be rolled, a carriage movable, with respect to said table, a rollcarrier slidably mounted on said carriage for movement transversely thereof, said car:-

rier having a pair of spaced dependingpore. trons, a shattt ournalcd in said 13OItlOIlS,-2l-

ii) V roll mounted; on; said shaft and rotating between such portions, said roll being adapted Y to operate on a blank supported on the table,

an, end cap; fastened to: the outermost of said depending portions of the carrier and hava projecting lug, and means connected to said lug for shifting said carrier transversely oi the carriage,

31.v A machine of the class describedwnrprising a rotatably mounted table adapted to support a blank to be rolled, a carriage vertically movable with respect to the table, a roll; carried by said carriage and adapted to operate on a blank supported on the table,

means or raising and lowering the carriage, I?

and spring means; acting on the carriage and partially supporting the weight. thereof: in raised position.

32-. A machine of the: class described comprising a frame, a rotatably mounted table adaptecljto support a blank to be rolled, verticalguide-rods carri d by said frame, a carriage vertically mowable; on said guid rods, bars secured to fixed part or the frame and e tending through pertions, of

the movable carriage, and: springscom pressed. between fixed. parts on said bars; and said portions of theycarrrage 8.3-, A, machine of. the class described com- I prising a base a retatably mounted. table adapted to support, a blank'to be rolled, guide-rodsextending vertically from said base, cross rods secured to and connecting the, upper GHQ 18 0i Said guide -rods, a carriage vertically movable on said guide-rods, a roll carried by said carriage and adapted to operate on a blank supported, on; the-table, a

motor supportedby said cross rods, and

1 ice knuckle members jou-rnaled on said cross rods and connected to smidi vcarriage, ant means; supported by said carriage-1 for rockingc said knuckle members, on thei beari gs.

35. A machine of the class described comprising a base, a rotatably mounted table adapted to support a blank to be rolled, guide-rods extending vertically from said base, cross rods secured to and connecting the upper ends of said guide-rods, a carriage vertically movable on said guide-rods, a roll carried by said carriage and adapted to operate on a blank supported on the table, knuckle members journaled on said cross rods and connected to said carriage, a motor supported by said cross rods, cam mechanism supported by said carriage and actuated by said motor, and connections between said cam mechanism and knuckle members for rocking the latter on their bearings.

36. A machine of the class described comprising a rotating support for a blank to be rolled, a roll adapted to operate on a blank on said support, and cam mechanism for causing a relative movement of approach and separation between said support and roll for causing a relative movement of the support and roll in a direction radially of the blank, all in a predetermined sequence and at predetermined intervals.

37. A machine of the class described comprising a support for a blank to be rolled and a cooperating roll, said roll and blank support being adapted to execute a com plete cycle of movements relative to each other consisting of an approach movement,

a traverse movement radially of the blank, a separation movement, and a retraverse movement, and means for causing said approach, traverse, separation and retraverse movements to succeed each other automatically.

38. A machine of the class described comprising a support for a blank to be rolled and a cooperating roll, said roll and blank support being adapted to execute a complete cycle of movements relative to each other consisting of an approach movement, a traverse movement radially of the blank, a separation movement and a retraverse movement, means for causing said movements to succeed each other automatically, and means for repeating the cycle without attention on the part of the operator.

39, A machine of the class described com prising a rotating support for the blank, a carriage supported above said support for vertical movement with respect thereto, a pair of roll carriers slidably mounted for horizontal movement in said carriage, a roll carried by each of said carriers and adapted to engage a blank on said support, means for moving the carriage toward and from said support at predetermined intervals, and means for moving said carriers substantially horizontally with respect to said support.

In testimony whereof, I afiix my signature.

JOHN W. SMITH.