US388565A - Metal-rolling machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1,

D. E. KBMPSTBR. METAL ROLLING MACHINE.

. No. 888,565. Patented Aug.' 28, 1888.

N. PETERS. nmvumugnpnr. wmingnm avc.

2 Sheets-Sheet 2;

(No Model.)

VD. E. KBMPSTBR. METAL ROLLIG MACHINE.

No. 388,565. PatentedAug. 28`18,a8.

E E E. E. MMM;

N. PETERS. Photo-Lillmgrapher. Wanhmwn. D. C.

UNITED STATES PATENT OFFICE. V

DANIEL E. KEMPSTER, OF BOSTON, MASSACHUSETTS.

METAL-ROLLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 388,565, dated August 28, 1888. Application filed J une (i, 1888. Serial No. 276,171, (No model.)

To all whom it may concern:

Beit known that I, DANIEL E. KnMrsTER, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Metal-Rolling Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to the, organized system or automatic metal-rolling mill original with me, and broadly covered by UnitedStates Patent No. 380,759, granted to me Aprilv 10, 1888, wherein metal articles having circular cross-sectional area are formed orforged directly from a continuous rod or coil of wire, or from automatically-fed bars or blanks, without any intervening manipulation by' hand as practiced prior to my invention; and when said invention is applied to the manufacture of steel spheres or conical steel rifle-bullets, as shown in the drawings herewith, or in fact to any small circular metal articles of large consumption, they may be produced more speedily and economically than by any previouslyknown method, and, if desired, fully hardened or tempered for use direct from the rollingmill.

The object of my present invention is toimprove the construction and arrangement of the various elements or devices constituting said system or mill as a whole, whereby I am able to more easily adj ust and control their operations, and also, when necessary, more readily replace the dies, cutters, feedArolls, and metal rod or bar being worked, these being the parts requiring repairs or renewal the most frequently; also, in my present horizontal arrangement of these devices the scale from the hot metal rod or blank as it passes out of the furnace falls to the floor and is not liable to be rolled into the article being forged;` and, also, the rollingmachine and its rod-supporting reel are bot-h made independent from the furnace or heating apparatus, and when necessary can be quickly separated therefrom or from each other to admit of building a new furnace or for making any needed repairs upon either one of the said devices.

My present invention consists in the special construction of the various elements or devices herein set forth, and also in the combinations of said elements or devices which thereby' rollingmachine; Fig. 3, a front end View of the same without the feed-stand; Fig. 4, a detail or face view of the revolving die-carrier and its curved plate or platen dies; Fig. 5, a

detail or front elevation of the feed-stand;-

Fig. 6, a detail or cross-sectional view of a. portion of the stationary frame and revolving die carrier, the stationary and revolving plate or platen dies being shown in cross-section through a portion of their finishing ends, as shown by the configuration of their workinggrooves; Fig. 7, a detail of a conical steel ride-bullet as forged and formed by said dies.

Fora general class of work I find it convenient to construct and arrange the mill in the manner shown in the accompanying drawings, in which a represents a suitable base or bed having legs 2 2, and supported, on carrying wheels 3 3 3 3, which travel upon a suitable track or rails, 4 4, having their front ends bent upwardly and provided thereon with a crossrod, 5, having two hooked pawls, 6 6, which are adapted to be struck and lifted by the pins 7 7 on the front leg of the machine when it is run up close to the furnace for action, the hooked pawls dropping down over said pins and holding said machine rigidly in place. When necessary to run the machine back out of the way, the hooked pawls may be disengaged by pressing the foot upon the treadle 8.

A die-carrier, 9, in the form of a wheel or disk is fast on a shaft, 10, free to revolve in suitable bearings in a supporting-frame, b,

l' OO forming a part of the bed a, by being securely fastened thereon by screws 11 11 11 11. The die-carrier 9 revolves within the frame b, said frame being connected both over the top and also in front of said diecarrier, (see Figs. 2 and 3,) its two sides being thus strongly tied together, which effectually prevents the casting or frame from springing apart when the dies are doing their work. On the inner face of the disk or die carrier 9, one or more, in the present case three curved plate or platen dies, 12 12 12, are shown fastened by suitable screws, 13 13 13. The curve of said dies corresponds to the radius of said diecarrier, and their length is about one-fourth of the eircumference thereof, thus leaving a space between said dies for thenished article to drop out. (See Figs. 1 and 4.)

The frame b is so shaped as to embrace a little more than a quarter of the die-carrier 9, and has pivoted thereon anti-frictional rollers 14 14, running against said carrier-back, and thus supporting` and effectually preventing said carrier or disk from springing when the dies are rolling metal. (See Figs. 2 and 3.)

On the frame b, at the left of the die-carrier 9, is a stationary plate or platen die, 15, substantially similar to the revolving dies 12, and rigidly fastened by suitable screws, 16 16 16, passing through said frame. A curved wedge, 17, interposed between said die 15 and frame b, is provided on its outer edge with gearteeth 18, meshing into a worm, 19, on a short shaft running loosely in a suitable bearing in an ear on the inner side of the main frame. The worm-shaft has a small wheel or crank, whereby said worm may be revolved and thus cause the wedge 17 to move in a c ircle and thereby .move the stationary die 15 laterally to adjust the distance between the adjacent workingf'aces of said dies 12 and 15. If desired, a graduated dial having a pointer may be conneeted with said wed ge-adjusting worm-crank, and thus facilitate a fine and accurate adjustment of the dies, as required for certain kinds of work. The wedge 17 is slotted where the screws 16 pass through it to permit its longitudinal or circular movement, said screws clamping the die and its wedge rigidly to the frame after the proper adjustment of said die. (See Figs. 1, 2, and 3.) The dies 12 and 15 are curved plates or platens parallel from end to end and having working-grooves formed longitudinally within the parallel faces thereof, thus forming grooves (the entire length of said dies) which are properly shaped and tapered, and have forming, reducing, and spreading surfaces adapted to roll-forge the blank interposed between them into the finished article desired, said dies being milled or scored, as at .e in Figs. 1 and 4t, to aid in rotating the blank in the usual manner.

It will be observed that the dies 12 and 15 are not eut away tapering on their faces, (as is usual with dies adapted to roll-forge metal articles on the end of a rod or bar which rotates with the article being forged, and thereby holds said article in proper position' between said dies during the forging operation,) but are formed parallel from end to end, their faces being fiush with the top of the workinggrooves therein, thus bodily confining (see Fig. 6) the metal blank separated from the rod or bar from the first start, and holding and guiding and keeping it in proper position during its planetary travel in the forging operation without depending at all upon the main rod or bar from which it was severed.

For forging certain kinds of work in my present form ofrolling-mill, I may use dies having working-grooves constructed in accordance with my application, Serial No. 263,3605', filed February 8, 1888, wherein the metal reducing, spreading, and forming surfaces of the die are all located within a working-groove formed obliquely to the plane or line of movement of said die, and thereby imparting superior qualities to the article being forged, as is fully explained in said application and also in my patent, No. 380,759.

0n the front of the frame Z1, at the left and just above the stationary die 15, is secured a cut-off stand, e, fastened to said frame by suitable screws, 20 2l. The bottom of the stand c and its seat on the frame bare suitably grooved and tongued together, so as to hold said stand square with the frame and yet admit of a certain amount of horizontal or fore-and-aft77 adjustment thereof, to enable the position of the cutters to be varied with relation to the dies being used, as is frequently required in forging different artiel es. The stand cis slotted for the screw 20 to pass through, and by slackening said screw slightly' said stand and its cutters may be very finely adjusted by turning the screw 21 in or out, as will be readily un derstood by referring to Figs. 1, 2, and 3. The said stand has a cutter-bar, 22, arranged to reciprocate freely within and across the former, and provided with a groove for the reception of the cutter 23, held therein by screw 24 and adj usted by screw 25. Said bar has on its outer -end a suitable stud and roll adapted to work within a slot in one end of the rocker-lever 26, freely vibratingin the stand 27, fast on the side of the machine, the other end of said lever having a stud and roll adapted to work within a grooved cam, 28, on the shaft 9, held by suitable screws or otherwise. Said cam 28 has a corresponding number of rises or throws as there are dies on the-revolving die-carrier.

On the stand c a projecting arm extending upwardly over the center of the machine has a vertical cutter, 29, securely clamped therein by screw 30. By slackening said screw slightly the cutter may be moved or adjusted as required. On the front of the machine or frame b is pivoted a lever or moving-guide, 31, through which passes the metal rod or bar 32, and is supported and guided thereby. A coiled spring, 33, holds said guide in a normal position against the left-hand adj Listing-screw 34 in one of the framecars, and while in this position the metal rod may be fed in past the IOO IIO

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cutter 29 sufficient for the length of blank required. (See Fig. 3.) When the cutter is cutting said blank from the rod, said rod and its guide 3l are carried by said cutter over to the right far enough to completely sever said rod, when the guide 31 will instantly be thrown by the spring 331back into its normal position, thus clearing the end of the metal rod from the front side of the cutter 29 preparatory to feeding in said rod another length of blank. The adj usting-screw 35 in .the right-hand frame ear acts as a stop and prevents the moving guide 31 from throwing too far. The cutter 23 moves past the cutter 29 far enough to carry the Severed metal blank across the end of the stationary die 15 and against the face of the moving die 12 on the revolving carrier, (see Fig. 2,) when it is instantly rolled down in between the tapering ends of the moving and stationary die faces, where it is compelled to rotate about its own center and also travel with the moving die in a planetary manner about the die-carrier shaft until it falls out at the bottom of the machine into the cooler receptacle 38 completely rolled or forged into the required shape of the finished article.

The cooler 36 consists of a flaring-mouthed casting under the machine and connected to a cold-air blast-pipe, 37, having a suitable controlling damper or valve, m. Said cooler is provided with a removable receptacle, 38, having suitable handles, and ils bottom perforated or made of woven wire, so the air will freely circulate but yet retain the smallest metal forgings.

d is the feed-stand, secured fast by suitable screws, 39 39, on the front end of the bed a, and having its bottom or foot 'suitably tongued to lit a groove in the top of said bed and thus beV held square thereon, the stand being slotted for said fastening-screws to pass through and admit of a certain amount of longitudinal or fore-and-aft adjustment being given said stand when required. The construction of some of the mechanism composing said feedstand is very similar to that contaiuedin my former patent, No. 380,759, and I need not minutely describe its minor parts.

Two corrugated feed-rolls, 41 41, are keyed fast on the ends of the two shafts 42 43, suitably supported in bearings within said feedstand and held apart by the spring 44. In the top of said stand are suitable adjustingscrews, 45 45, for pressing thc feedsrolls together, so as to grip the metal rod more closely as it draws saidrodalong betweentheirgroovedfaces. The feed-shafts are geared together by gears'46 46, fast thereon, and having solid collars adapted to run together with sufficient frictional contact to prevent any lost motion or slack of the feeding mechanism when running the mill at a high rate of speed.

Pivoted on the side of the feed stand is a gear, 47, closely meshing with the lower gear 46, and having a notched disk, 48, and feedratchet 49 connected therewith, so as to all revolve together. The said notched disk is engaged by a` detent, 50, pivoted on the stand and held by the coiled 4spring 51 thereon closely in contact with said disk, and has projecting out fromlits side a pin o1' projection, 52. A long hookedfeedpawl,53,pivotedto the upright slotted lever 54, pivoted on the side of the bed of the machine, is adapted to engage with said ratchet, and its free end is situated between the ratchet and said detent pin or projection. (See Figs. land 2.) The pawl 53 is supported in a slotted arm, 55, fastened by suitable screws, 56 56, on the bed of the machine, and is held up in proper working contact with its ratchet 49 by the spring 57 in said slotted arm. A cam-lever, 58, pivoted on said arm, (see Figs. 1 and 3,) is adapted to be swung across over the top of said pawl 53, so as to depress it and throw it out of engagement with its ratchet, 49, and also cause it to strike the pin or projection 52 and throw out and hold the detent from engagement with its notched disk 48; and while the cam-lever remains in this position the feed-rolls may be revolved in either direction by hand with the use of a suitable crank applied on the end of the feedshaft 43, which is properly squared therefor. (See Fig. 5.)

The pivoted upright lever 54 has on its upper end a stud and roll adapted to work within a grooved feed-cam, 59, adj ustably held by suitable screwsJ i ,having slots therefor to the side of the cut-off cam 28 on the shaft 10, said shaft having fast on its end a suitable driving-pulley, 60, for operating the mill. The feed-cam 59 has a corresponding number of rises or throws as.

thereare dies on the revolving diecarrier and rises or throws on the cut-off cam 2S, said dies,

feedeam, and cut-off cam being arranged and combined with each other and properly timed for automatic and conjoint operation, the cutoff cam being adjusted and held by the screw h in such position on its shaft with relation to the revolving dies on the disk or carrier that the cutter 23 will carry the severed blanks a: against the starting or tapering end of said dies (see Fig. 2) just at the instant they have passed behind said blank a distance equal to the diameter of the metal rod, the dies generally being tapered enough to admit of the full-size blanks entering freely between their faces at the starting ends thereof, and the feed-cam be ing adjusted and held in position on and with relation to the cut-off cam, so that the feed.- lever will on the instant the cutter 23 has returned back to its normal position be caused to start to draw the feed-pawl backward and revolve its ratchet, and through the medium of the connected gearing revolve the feed-rolls and feed the metal rod forward into the machine, stopping its movement just before the cutter 23 starts to move forward to sever another blank therefrom. The longitudinal movement of said rod is prevented while the blank is being out off and the pawl returned forward, preparatory to engaging another toot h of its ratchet by the spring-actuated detent ICO resting in one of the notches of its disk, thus securely holding the feed stationary for the time specified.

By changing the feed-ratchet and notched disk for others having a different number of teeth and varying the throw' of the feedingpawl, if necessary, vby adjusting its pivotal stud in the slot-ted lever operated by the feedcam, more or lesslmetal rod may be put into the blank, as required for different-sized articles, the feed-rolls being also of a size to feed in a metal rod of proper diameter therefor, depending, of course, upon the shape and depth of the configuration of the workinggrooves in the faces of the dies employed.

In front of the rolling-machine, supported upon a base or suitable legs securely fastened to the iioor, is a heatingfurnace, e, having a hollow flre-space extending through it horizontally from end to end. Said furnace is preferably formed with a suitably-molded firebrick core having the necessary apertures for nre-space, passage of metal rod, entrance of blew-pipe, vent, Ste., and is bricked up outside and held together by metal end plates connected by suitable bolts, as shown. Said end plates have auxiliary plates or nozzles 6l 6l, perforated for the passage through of the metal rod and detachabl y fastened to the main plates, so as to be readily removed and replaced When worn or burned out. A powerful blow-pipe composed of the gas-pipe 62 and ai r-blast pipe 63, each having suitablecontrolling cocks or valves n, enters through said furnace at the side on an angle, so as to drive the .dame and heat toward the front, the nozzle 6l at that end being shaped to concentrate the heat around the metal rod 32, passing through it.

In the rear of the furnace and pivotally supported on a suitable standard, 64, having a pedestal or base heavy enough to sustain itself in an upright position, is a reel, f, having arms 65 for supporting the coil of metal rod 82, said arms being provided with adjustable upright pins 66, which are embraced by the said metal coil, which is thus held in a central position thereon, said reel being adjusted as to its height from the tioor to coincide with the level bottom of the fire space within the furnace and the center of the machine between the feedroll, thus retaining and supporting the metal rod always in substantially a straight and horizontal position, as required to prevent it from sagging and becoming clogged while at a white heat within thefurnace, which would result in the metal beingburned; also,t,he horizontal position of the rod while being fed along through the furnace permits the scale from said hot rod Y to fall to the tioor before reaching the metalrolling dies and becoming rolled into the art-icle being forged thereby.

It will be evident to a mechanic, or to those skilled in the art to which this invention appertains, that I may somewhat modifyor vary the shape or construction of the various devices composing the several elements herein combined for conjoint operation, and I may also vary the arrangement or grouping of said elements in combination to best adapt the mill to roll or forge the class of work required, all without departing from the essential features and spirit of my invention. As. for instance, the dies may be made in different forms. One may be a concaved plate or bar and its co-operating die convex or a roll; or the dies may be made either segmental or straight plates or any other known forni, instead of being made curved, as herein shown, any of said forms being old and we1lknown mechanical devices; also, if preferred, both of the dies may have movement when rolling metal, although I prefer to have one die stationary, as herein described, as the cut off or blank-severing mechanism is more easily incorporated with said dies in a machine so as to conjointly operate, and the article being rolled or forged is also more rapidly carried out of the way of the next succeeding one; and', furthermore, with this construction I can obtain a more gradual feed with any given speed of the machine, as I am able to'make use of all the time between the strokes of the cutoff for feeding in the metal rod for the next succeeding blank to be severed therefrom, thereby admitting of ruiming the mill at a much faster speed; also, with my present construction, or having a series of moving dies working against a single cooperating stationary die, as described, be fore one blank is completely formed therein another blank starts into said dies to commence to be rolled thereby, thus making one blank at least at all times being rolled or forged on the stationary die. This makes the metal-rolling process continuous, similar to that in my patent, No. 380,759, in which dierolls having duplex workinggrooves are used.

Vhen the mill is running on certain kinds of work formed from soft metal, the furnace may be dispensed with, and in some cases the cutters also, the blanks being previously all cut to length and fed automatically into the dies; or the mill may be arranged vertically, and in that case the blanks when cut from the rod would drop by gravity into the dies, avoiding any blank-feeding mechanism. Furthermore, the dies in some cases may be so shaped as to automatically draw in the metal rod and by compression sever the blank therefrom, and in that case both the cutoff and the rod-feeding mechanisms would be dispensed with. Now, therefore, it must be seen that I may modify the arrangement of my mill to best suit the class of work being formed therein, but yet retain the principal and essential feature, which is the automatic or continuously operating system of cross rolling or forging metal articles having circular cross-sectional area (either singly Aor in series) direct from the coil of wire or continuous blank-rod or from a supply of metal blanks, the entire operation being automatic and without any manipulation by hand, as heretofore practiced prior to my invention.

It is obvious that the movable dies might be formed eonvexed, so as to be' placed on the outer face or periphery of the die-carrier and work against a co-operating concaved stationary-die, if so preferred.

It is also apparent to any ordinary mechanic that any form of dies employed for roll-forging metal in the manner herein referred to may have one ora series of working-grooves formed in its face, as it requires no invention to duplicate the die-grooves. Y

Forging metal into various shapes by crossrolling it between dies is an old and wellknown art, and needs no special description herein.

In view of the foregoing description and the state of the art as shown in my patent,

No. 380,759, the operation of my improved metal-rolling mill must be readily understood, and I will simply state that the metal rod passes from the rcel or support through the heating-furnace, and is heated sufficiently for forging, and is fed into the machine by theintermittingly revolving feed rolls, where the hot-metal blanks are severed therefrom by the intermittingly-operating cutters, and are then carried into the dies, where they are both rolled or forged, and also bodily carried along in the direction of the travel of the moving die until they drop out finished articles into the cooler under the machine, when they are quickly cooled by the cold-air blast which is forced up around and among them continuously, and when the receptacle becomes filled with the forged articles it maybe removed and replaced by an empty one.

If preferred, a tank of liquid for scaling and hardening or tempering the metal forgings direct from the dies, as shown in my patent, No. 380,759, may be used instead of the air-blast, and it would be preferable when forging conical steel bullets, as represented in the drawings herewith.

When heating up the furnace preparatory to the insertion ofthe metal rod, the rollingmaehine may be run back on its track out of the way and heat until said furnace is sufticiently hot to start up the mill.

By having the large gear 47 on the feedstand connecting, so as to revolve the smaller gears, 46, and having the feed-ratchet 49 rig idly connected with said gear 47, so as to be revolved together, I am able to feed into the machine a long length of the metal rod, by more or less revolution of the fecd'rolls, with comparatively a short throw of the feed-pawl, which is very desirable when forging articles of extended length-such as tapering spindles. The gear 47 being so much larger than the feed-ratchet which is fastened to it that a movement of said ratchet the distance of the length of a single tooth will revolve said gear sufficient to turn the gears 4.6,with which it meshes, far enough to cause the feed-rolls 41 to feed in the longest blank required.

With my invention any small metal articles-such vas steel spheres, conical bullets, bootcalks, horseshoecalks, screws, nails, 85e.-

may be forged cheaper than by any other method yet known, as the metal-forging mill is continuous and automatic in its action and capable of great speed.

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By using fiat curved platen-dies arranged so as to be operated by a continuous rotary or circular motion I am able to attain the very best results. l

I desire to state that I have madeuse in this specification and its claims of the term plate or platen dies to specically point out and distinguish them from die rolls7 already combined with automatic mechanism, and fully described and claimed by me in the metalrolling mill patent, No. 380,759, hereinbefore mentioned.

Having now fully described the nature of my present invention, I desire to secure by Letters Patent and claimi 1. In an organized metal-rolling mill, cutters or automatic mechanism for severing the metal blanks from the rod prior to rolling or forging them, in combination with plate or platen dies arranged and. adapted to roll-forge metal articles by rotating said blanks between their adjacent diefaces, for the purpose set forth.

2. -In an organized metal-rolling mill, feedrolls or automatic mechanism for feeding the blank metal into the machine,-in combination with plate or platen dies arranged and adapted to roll-forge articles from said blank metal by rotating it between their adjacent die-faces, for the purpose set forth.

3. In an organized metal-rolling mill, automatic blank-feeding mechanism and automatic blank severing mechanism, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotating said blanks between their adjacent die-faces, for the purpose set forth.

4. In an organized system or metal-rolling mill, a furnace or means for heating the metal rod, and automatic rodfeeding mechanism and automatic blank-severing mechanism, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotating them between their adjacent diefaces, for the purpose set forth.

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5. In an organized system or metal-rolling mill, a reel or support for the metal rod, and a furnace or means for heating said rod,A and automatic rod-feeding mechanism and automatic rod-severing mechanism, in combination with plate or platen dies arranged and adapted to rollforgc metal articles by rotating them between their adjacent dic-faces, for the purpose set forth.

6. In an organized system or metal-rolling mill, a reel or support for the metal rod, and automatic rod-feeding mechanism and automatic blank-severing mechanism, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotat` ing them between their adjacent die-faces, for the purpose set forth. v

7. In an organized system or metal-rolling mill, a support for the metal being worked and automatic feeding mechanism, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotating them between their adjacent die-faces, for the purpose set forth.

8. In an organized system or metal-rolling mill, a reel or support for the metal rod and automatic cutters for severing the blanks from said rod, in combination with plate or' platen dies arranged and adapted to roll-forge metal articles from said blanks by rotating them between their adjacent die-faces, for the purpose Set forth.

9. In au organized system or metal-rolling mill, a furnace or means for heating the metal blanks and automatic blank-feeding mechanism, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotating said blanks between'their adjacent die-faces, for the purpose set forth.

10. In an organized system or metal-rolling mill, a furnace for heating the rod or bar and automatic cutters for severing metal blanks therefrom, in combination with plate or platen dies arranged and adapted to roll-forge metal articles by rotating said blanks between their adjacent die-faces, for the purpose set forth.

11. In a metal-rolling machine7 the combination of a stationary plate or platen die and a movable plate or platen die, for the purpose herein set forth.

12. In a metal-rolling machine, a stationary plate or platen die and a movable plate or platen die, combined with each other and with mechanism for operating said movable die, 'for the purpose set forth.

13. In a metal-rolling machine, a stationary plate or platen die and a movable plate or platen die, combined with each other and with mechanism for operating said movable die, and with mechanism for adjusting the distance between said dies, for the purpose herein described.

14. In a metal-rolling machine, a stationary die and a movable die, combined with each other and with mechanism for operating said movable die and with mechanism for feeding into said dies the metal blanks to be roll-forged thereby, for the purpose herein set forth.

15. In a metal-rolling machine, a stationary die and a movable die, combined with each other and with mechanism for operating said movable die and with rod-feeding mechanism and with rod-severing mechanism, for the purpose herein set forth.

16. In a metal-rolling machine, the combination of a supporting frame or bed, a stationary die thereon, a shaft and suitable bearings therefor, a die-carrier supported by said shaft, and a die on said carrier, all arranged to operate substantially as herein set forth.

17. In a metal-rolling machine, the combination of a supporting frame or bed, a cut-off stand and its cutters, a shaft and suitable bearings therefor, a cut-off cam on said shaft, and connecting mechanism whereby said cutters are operated by said cam, substantially as set forth.

18. In a metal-rollingmachine, the combination of a supporting frame or bed, a feedstand and its feed-rolls, a shaft and suitable bearings therefor, a feed-cam on said shaft, and connecting mechanism whereby said feedrolls are operated by said cam, substantially as set forth.

19. In a metal-rolling machine, a frame or bed, a shaft suitably supported thereon, a cutoff cam on said shaft, a pivoted rocker-lever supported by said frame or bed and operated by said cam, a cut-off stand and a stationary cutter thereon, a cutter-bar operated by said rocker-lever and reciprocating on said stand,

and a cutter on said bar, all combined to operate substantially as set forth.

20. In a metal-rolling machine, a frame or bed, a cutoff stand having cutters thereon and suitable connecting mechanism for operating said cutters, in combination with arodguide having a limitable movement and means for retaining itin a proper normal position, to operate substantially as set forth.

21.. In a metal-rolling machine, a frame or bed, a shaft suitably supported thereby, a feedcam on said shaft, a pivoted vibrating lever supported by said bed and operated by said cam, a feed-pawl connected with said lever, a feed-stand having feed-rolls thereon, and a feed-ratchet to be operated by said pawl and revolve said feed-rolls, all arranged and combined substantially as described, to operate as specified.

22. In a metal-rolling machine, a feed-stand having feed-rolls on shafts connected by gearing and having a connecting feed-ratchet, and notched disk provided with a detent having a pin or projection, as described, in combination with a feed-pawl and its operating mechanism and its supporting slotted arm and spring, and the cam-lever or means for throwing said pawl and detent into or out of action or engagement with said feed-ratchet and notched disk,substantially as herein described, and for the purpose specified.

23. A stationary die and aseries of movable dies, all provided with working faces and adapted to roll-forge metal articles having circular cross-sectional area, combined with each other and with mechanism for operating said series of movable dies, substantially as herein set forth.

24. A frame and its stationary die combined with an adjusting-wedge and means for moving the same, substantially as and for the purpose specified. p' 25. In a machine for roll-forging metal articles having circular' cross-sectional area, and having mechanism for severing said metal articles from its rod or bar, the combination, with said mechanism, of means, substantially as described, for admitting of a longitudinal or fore-and-aft adjustment of the same, for the purpose herein specified.

2G. In a machine for roll-forging metal, a

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frame or bed and a curved plate or platen die secured thereon, combined with a die-carrier supported so as to revolve on Said frame or bed, and having a series of curved plate or platen dies secured on said carrier and moving therewith, to operate substantially as herein specified.

27. A frame and a revolving die-carrier, in combination with anti-friction rollers, to operate substantially as and for the purpose set forth.

28. In an organized system of roll-forging metal, a furnace or means for heating said metal, in combination with a rolling-machine having dies arranged and adapted to roll-forge metal into circular cross-sectional form by rotating said metal between the adjacent and converging faces of said dies, and carryingwheels arranged and adapted for transporting said rolling-machine to and from said heating-furnace, for the purpose set forth.

29. A machine for roll-forging metal in the `manner described or having circular crosssectional area and having supporting carrying- Wheels, combined with rails or tracks and mechanism for locking said machine stationary thereon, for the purpose specified.

movement of the latter a long length of metal rod may be fed into the machine by the said feed-rolls, for the purpose set forth.

31. In a metal rolling machine, dies for cross-rolling or roll-forging metal articles having circular cross-sectional area from metal blanks separated from the rod or bar,said dies consisting of curved plates or platens having their forming, reducing, and spreading surfaces entirely within working-grooves running in a line coincident with the travel of the moving die, whereby the metal blank is bodily confined and guided while traveling in a planetary manner and being rolled therein, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL E. KEMPSTER.

Witnesses:

HENRY GHADBOURN, HERBERT L. OHAPIN.

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