US981560A - Machine for rolling finger-rings. - Google Patents

Description

H. HEINRICH. MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED MAY 29, I906.

Patented Jan. 10,1911.

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H. HEINRICH. MAUHINE FOR 1101mm Fiii'fi'fifi Rim.

Patented Jan. 10, 1911.

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' WITNESSES H. HEINRICH.

MACHINE POE ROLLING FINGER RINGS.

APPLICATION nun MAY 29, 1906.

Patented Jan. 10, 1911.

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INVENTOH ATTORNEY H. HENRIUH. MACHINE FOR ROLLING FINGER RINGS.

' APPLICATION FILED MAY 29, 1906.

Patented Jan. 10 1911.'

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H. HENRIGH. MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED MAY 29, 1908.

Patented Jan. 10,1911.

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UNITED PATENT OFFICE.

HENRY HENRICH, OF NEW YORK, N. Y., ASSIGNOR TO J. R. WOOD & SONS, OF NEW YORK, N. Y., A GOPAR'I'NERSHIP.

MACHINE FOR ROLLING FINGER-RINGS.

Specification of Letters Patent.

Patented Jan. 10, 1911.

Application filed May 29, 1908. Serial No. 319,378.

To all whom it may concern:

Be it known that l, l-lnxny Harmon, of New York, in the county of New York and in the State of New York, have invented a certain new and useful Imprtwement in Machines for Rolling; Finger-Rings, and do hereby declare that the following is a full, (Iltli-Uf. and exact description thereof, referencebeing' had to the accompanying drawings, in which Figure 1 is a plan view of a machine for rolling; fil'i rer rings, which machine can bodies my invention; Fig. 2 is a front elevation of the machine of F ig. 1; Figs. 3 and at are respectively right and left elevations; Fin. 5 is a section on the line 5 5 of Fig. 1; Fig. (3 an elevation partly in section of means for adjusting the swinging frame carrying the ring swaging roller; Fig. 7 is a front View, and F ig. 8 a side view on an enlarned scale of the parts which operate upon the ring. and those for indicat ins: its Fig. 9 is a plan view the compound slide-rest and tools for turning the edges of the ring, and of the ring-red ing roller and chip guard; Fig. 10 is a. front elevation of rig. 9.; and Fig. 11 is a view on an enlarged scale of the parts in Fig. 5 which operate upon the ring.

The object of my invention has been to produce a machine which shall be capable of rolling finger-rings that shall be substantially circular, and shall require no turning except at the edges, and that shall. also be capable of indicating the size of the ring at the various stages of the rolling; opera tion, and to such ends my invention consists in the machine for rolling finger-rings hereii'lafter specified.

In carrying; my invention into practice, I provide a base 1 having bearing brackets 2. 3 and r1 rising; therefrom. A mandrel \Jkm sprndle p is mounted in bearings 1n the brackets Q and 3 and is driven by a gear 6 secured on its outer end, which gear meshes witha pinion 7- connected with a belt-pulley 8 or other means of driving. The mandrel 7, to be later described, is provided with a tapered shank that is seated in a tapered socket in the mandrel after the usual manner of lathe centers. The spindle carries a pinion 8 that meshes with a gear 9, the latter being fixed on a shaft 10 that is mounted in hearings in the brackets 2, 3, and 41. On the opposite end of the shaft 10 is a pinion 11, which n'ieshes with an idler pinion 12 that meshes with a pinion 13, on a shaft 14, which latter carries a rin g, '-shapino roller 15 to be later described. The pinion 11 has a slot 11" to receive the end of a dowel pin 1.1" projecting from the end of the shaft 10. The shaft 11 is mounted in the arms of a frame 113, the latter having arms 17 and 18 that are pivoted on the shaft 10. The pinion '12 is journaled on a stud screwed to the arm 17. The mandrel 7 is provided with a concave neck or groove 19 that is of the shape to be given to the inside of the ring, and the roller 15 is provided with a similar neck or groove 20 that is of the shape to be given to the exterior of the ring. In order to adjust the groove 20 in the direction of the length of the shaft 1 1 to correspond to the groove 19, a sleeve 21 is loosely mounted on the shaft 10, and has a ring or nut 22 threaded upon its on terior and the lock-nut 23. The sleeve and the nuts are provided with holes for engagement by a spanner wrench. The sleeve and nuts are interposed between the arm 18 of i the frame 16 and the bearing 3, and by means of them the frame 16 together with the ring-forming roller can be moved away from the bearing bracket 3. Adjustment in the opposite direction is eifected by a screw 2-1 passing through a washer 25 into the end of the shaft 10, the screw serving to force the washer against the pinion 11 and to force the latter against the arm 17 and thus to force the frame 16 toward the bearing bracket 3. By these means the two ring forming grooves may be adjusted with reference to each other.

In order to raise and lower the frame, the latter is provided with an anti friction roller 26 which normally rests on the cam 27, the latter being secured upon the end of a shaft 28 whose end is provided with a gear 29. The gear 29 meshes with a pinion 30 on one end of a short shaft 31 whose opposite end has a gear 32 meshing with a pinion 33 on the shaftof the hand-wheel 34:. By turning the hand-wheel, the cam 27 is rotated-and the frame 16 raised and-lowered causing the ring-forming roller to approach and recede from the mandrel. An arm is secured on the shaft 28, and by contacting .with the bearing of the shaft 31, it acts as a stop to prevent rotation of the hand-shaft in the wrong direction or too far. A slideway 36 is mounted on the bracket 3 and a slide 37 is mounted in the slide-way. A weighted lever 38 is pivoted to a bracket 39, secured to the slide-way, and engages a screw or stud 40 on the slide so that a weight placed on the arm tends to force the slide downward. Two levers 41 are fulcrumed on the slide way 36, their upper ends being normally drawn toward each other by a spring 42 connecting them, such upper ends being provided with inclined surfaces 43 that are adapted to receive between them a wedge 44 carried by the lower end of the slide-way. The lower ends of the levers 41 are provided with rollers 45 having concave grooves formed in their surfaces, the said grooves being preferably of deeper curvature than the exterior of the ring to be formed, so that the said rollers engage the outer surfaces of the ring near its edges and get a lateral hold on the ring to prevent its wabbling as hereinafter described.

The slide 37 has secured to it an arm 46 which extends downward and at its lower end is preferably provided with an antifriction roller. Such roller rests upon an arm 47 secured to a shaft 48 whose opposite end has an arm 49 that rests against a cam 50 on the shaft 28. The shape of the cam 50 is such that, when the hand-wheel is turned to lower the frame 16, the arm 46 is raised to elevate the slide 37 and permit the spring 42 to retract, the upper ends of the levers 41 moving the rollers 45 away from each other and from the mandrel.

In order to trim the edges of the ring, a compound slide rest is mounted upon the frame 16. Such rest consists of a transversely movable slide 51 on which are mounted two longitudinally movable slides 52, the latter being simultaneously moved in opposite directions by a screw 53. The slides 52 are each provided with a tool 53" having a cutting edge that is adapted to trim the edges of the ring.

In order to prevent the chips formed by trimming the edges of the ring from getting between the roller and the ring, and thus being rolled into the ring, a guard 54 is secured to a finger 55 on the arm 18, or to any other convenient support, and such guard over-lies the grooves in the roller. The guard is preferably provided with wings 56 to catch turnings which tend to swing laterally, and a piece of fibrous substance 57 such as cotton waste, is preferably clamped under the guard 54 to keep the groove clean.

In order to indicate at all times the size of the ring being formed, a finger 58 of such shape as to be readily received within the ring is mounted on a slide 59 having a rack 60 that meshes with a pinion 61 on an arbor 62, said arbor carrying a pointer 63 that is movable over a dial 64. A weight 65 conthe inside surface of the ring, and as the ring enlarges, the weight continues to raise the finger 58.

In order that the finger 58 may be near the mandrel when the blank to be rolled is put on the mandrel, the weight 65 is raised at the same time the slide 37 is raised by the provision of a cup or bracket 6?) that is attached to the arm 46 directly beneath the weight 65.

In the operation of the above described embodiment of my invention, a ring blank is placed over the mandrel, and, the machine being in motion, the hand-wheel is turned to raise the ring forming roller toward the mandrel. The arrangement described affords sufficient power to compress the ring between the roller and the mandrel, and cause it to take the shape of their grooves. At the same time the roller is raised, the slide 37 is permitted by the cam 50 to descend until the pressure due to its weighted lever is transmitted upon the beveled upper ends of the levers 41. This causes the upper ends of said levers to swing outward and their lower ends to swing inward, and thus force the rollers 45 against the ring being formed. The action is a firm steady pressure of the rollers 45 against the ring being formed. The squeezing action be tween the mandrel and the rollers 15 tends to elongate and flatten that portion of the ring between such parts, while the pressure of the rollers 45 tends to bend the flattened portion of the ring to make it the shape of a circle. Owing to the fact that the shaft 14 of the roller 15 extends in the opposite direction from the mandrel spindle, I am enabled to provide the gearing above described, so that the surface speed of the groove in the roller 15 is exactly the same as that of the groove in the mandrel. If the groove in the roller 15 traveled faster than that in the mandrel, it would tend to stretch the outer surface of the ring, and thus to bend inward the portion of the ring being acted upon. If on the contrary, the surface of the groove in the mandrel traveled faster than the surface of the grooves in the roller 15, the tendency would be to stretch the surface of the inside of the ring more than that of the outside, and to bend outward the portion of the ring being acted upon. By making the surface speeds the same, the rolling action between the mandrel and the roller takes place without any tendency to bend the portion being acted upon either outward or inward. The uniform pressure of the rollers 45 upon the ring, owing to the action of the weighted arm, insures that the enlargement of the ring shall be accomplished without any substantial change in the accuracy of the ring. It will be noted that the rollers 45 engage the ring at a level above that of the axis of the mandrel, and, I attribute the result ob tained somewhat to the relative position of the )ZlI'lLS, as therrollers L5 engage the outer sur ace near the edges of the ring, they secure a good lateral hold on the ring, and pre vent it wabbling and thus becoming imperfeet. The fact that they are placed above the center of the axes of the mandrel enables them to get a strong hold on the ring to prevent wabbling, as they engage it well up along the sides of the ring. The weight on the lever 38 is chosen according to the particular size and weight of ring being formed.

As the ring enlarges, the pointer 63 indicates on the dial at all times the exact size of the ring being formed, so that it is not necessary to remove the ring from the machine in order to determine whether or not it is of the desireo size.

It is obvious that various changes can be made in the above illustrated construction which will. be within the spirit of my invention, and I desire not to be limited beyond the requirements of the prior art and the language of my claims.

I claim-- 1. In a machine for rolling rings, the combination of ashaft, a mandrel mounted thereon, a pivoted frame, a shaft pivoting said frame, a shaft having bearings in said frame, a ring-forming roller mounted on said second shaft, means for swinging said frame to carry said roller toward and from said mandrel and gearing between the framepivoting shaft and the roller shaft.

2. In a machine for rolling rings, the combination of a frame, a shaft journaled therein, a mandrel in said shaft, a frame pivoted upon the fixed portion of the machine, a shaft having bearings in the said frame, gearing for driving said shafts, a ring-forming roller mounted on said second shaft, means for swinging said frame to move said roller toward and from said mandrel, said means consisting of a cam journaled upon the machine frame and engaging said pivoted frame, a handle, and gearing for trans.- mitting motion from said handle to said cam.

3. In a machine for rolling rings, the combination of the machine frame, a shaft journaled thereon, a mandrel mounted in said shaft, a frame pivoted upon a fixed portion of the machine, a shaft having hearings in said frame, gearing connecting said mandrel and said shaft in said pivoted frame, a ringforming roller mounted on said shaft in said pivoted frame, and means for swinging said frame to move said roller toward and from said mandrel, said means consisting of a canr pivoted upon the machine frame and engaging said pivoted frame, a handle, gearmg for transmitting motion from said handle to said cam, and a stop connected to said cam and adapted by striking another portion of the machine to limit the movements of said cam.

4. In a machine for rolling rings, the combination of a mandrel shaft mounted in sta tionary bearings, a. mandrel mounted there on, a second shaft mounted in stationary bearings, a frame pivoted on said second shaft, a shaft journaled in said pivoted frame, a ring-forming roller mounted on said last-mentioned shaft, gearing for driving said mandrel shaft and said second shaft, gearing connecting said second shaft with the shaft journaled in said pivoted frame, and means for raising and lowering said frame to move said ring-forming roller toward or away from said mandrel.

5. In a machine for rolling rings, the combination of a mandrel shaft mounted in stationary bearings, a mandrel mounted thereon, a pivoted frame, a shaft j ournaled in said frame, a ring forming-roller mounted on said shaft, a third shaft mounted in stationary bearings upon which shaft said frame is pivoted, and means for adjusting said frame to adjust said roller with reference to said mandrel, said means consisting of a sleeve journaled on said third shaft between said frame and a stationary part, a nut threaded on said sleeve, and spacing means on the end of said third shaft, and a bolt threaded into the end of said shaftand bearing on said spacing means, the latter bearing against the end of said pivoted frame opposite to that engaged by said screw sleeve, whereby when said bolt is turned, said sleeve is moved along said shaft and carried with the said pivoted frame, and gearing for driving said shafts.

6. In a machine for rolling rings, the combination of a mandrel shaft mounted in stationary bearings, a mandrel mounted thereon, a pivoted frame, a shaft journaled in said frame, a ring-forming roller mounted on said shaft a third shaft mounted in sta tionary bearings upon which shaft said frame is pivoted, and means for adjusting said frame to adjust said roller with reference to said mandrel, said means consisting of a sleeve journaled on said shaft between said frame and a stationary part, a nut threaded on said sleeve, spacing means comprising a pinion on the end of said third shaft, and a bolt threaded into the end of said shaft and bearing on said spacing means, the latter bearing against the end of said pivoted frame opposite to that engaged by said screw sleeve, whereby when said bolt is turned, said pinion is moved along said shaft and carried with the said pivoted new, and gear on said roller-shaft and driven from said pinion.

7. In a machine for rolling finger rings, the combination of a mandrel, a ring-forming roller, shafts, upon which said parts are mounted, gearing on these shafts, a third shaft having gearing to convey motion from the mandrel shaft to the ring forming roller shaft and means upon said third shaft for adjusting said shafts longitudinally relative to each other to adjust said mandrel and roller so that the ring-forming surfaces shall bear proper relation to each other.

8. In a machine for rolling rings, the combination of a mandrel, a ring-forn'iing roller, means for causing said parts to approach or recede from each other, auxiliary rollers operable upon the outside of the ring movable toward and from said mandrel, and automatic and adjustable means comprising a weight for moving said auxiliary rollers toward and from said mandrel, with an even pressure.

9. In a machine for rolling finger rings, the combination of a mandrel, a ring-forming roller, auxiliary rollers, pivoted arms on which said auxiliary rollers are mounted, a weighted arm, and means for transmitting motion from said weighted arm to said pivoted. arms.

10. In a machine for rolling finger rings, the combination of a mandrel, a ring-forming roller, auxiliary rollers, pivoted arms on which said auxiliary rollers are mounted, a weighted arm, and means for transmitting motion from said weighted arm to said pivoted arms, said means comprising a slide movable by said weighted arm, and a wedge adapted to engage beveled surfaces on said arms.

11. In a machine for rolling finger rings, the combination of a mandrel, a ring-forming roller, auxiliary rollers, pivoted arms on which said auxilliary rollers are mounted, a weighted arm. and means for t-ansmitting motion from said weighted arms to said pivoted arms, said means comprising a slide movable by said weighted arm, and a wedge carried by said slide, said wedge being adapted to engage beveled surfaceson said arms, said arms being connected by a spring tending to hold them against said wedge.

12. In a machine for rolling finger rings, the combination of a mandrel, and a ringforming roller, gearing for driving them, pivoted arms, auxiliary rollers carried by one end of said arms, a slide movable toward and from said mandrel, a wedge on said slide engaging said arms, a spring connecting said arms and holding them against said wedge, a lever engaging said slide and means on said lever for receiving replaceable weight members, for forcing said slide toward said mandrel to move said auxiliary rollers toward said mandrel.

18. In a machine for rolling rings, the combination of a mandrel, a ringforming roller, means for driving their ring-engaging surfaces at substantially the same speed,

auxiliary rollers provided with ring-engaging grooves that are deeper than the ring forming grooves in the roller, whereby said auxiliary rollers engage the ring iilearer its edges than the ring-forming roller and prevent it from \vabbliug, and automatic means for forcingsaid auxiliary rollers toward said mandrel at a predetermined pressure.

ll. In a machine for forming rings, the. combination of n'ieans for rolling a ring, and two opposed tools for turning the opposite edges thereof, said tools being mounted on slides movable parallel to the axis of the ring, and a right-and-left screw for adj usting said slides.

15. In a machine for formingrings, the combination of means for rollin a ring, and two opposed tools for turning the opposite edges thereof, said tools being mounted on slides movable parallel to the axis of the ring, a right-and-left screw for adjusting said slides, said slides being mounted on a transverse slide, and means for adjusting said transverse slide.

16. In a. machine for fo ming rings the combination of a stationary shaft, a mandrel mounted thereon, a frame movable toward and from said mandrel, a shaft journaled in said frame, a ring-forming roller mounted on said last-mentioned shaft, and opposed tools mounted on said frame for turning the opposite edges of the rin 17. In a machine for forming rings, the combination of a stationary shaft, a man drel mounted thereon, a frame movable toward and from said mandrel, a shaft journaled in said frame, a. ring-forming roller mounted on said last-mentioned shaft, and opposed tools mounted on said frame for turning the opposite edges of the ring, each of said tools being mounted on a slide adjustably parallel to the axis of the ring.

18. In a machine for forming rings, the combination of astationary shaft, a mandrel mounted thereon, a frame movable toward and from said mandrel, a shaft journaled in said frame, a. ring-forming roller mounted on said last-mentioned shaft, and opposed tools mounted on said frame for turning the opposite edges of the ring, each of said tools being mounted on a slide adjustable parallel to the axis of the ring, said slide being mounted on a slide adjustable transversely to the axis of the ring.

19. In a machine for forming rings, the combination of a mandrel, ring-forming roller, opposed tools for turning the opposite edges of the ring, and a guard over-lying the ring-forming groove in the roller and underlying the tools.

20. In a machine for forming rings, the combination of a mandrel, ring-forming roller, opposed tools for turning the opposite edges of the ring, and a guard over-lying the ring-forming groove in the roller and underlying the tools, said guard having vertical SllliftlCGS, parallel to said groove to catch the tln'nings.

2.1. In a machine for forn'iing rings, the combination of a mandrel, ring forming roller, opposed tools for turning the opposite edges of the ring, a guard over-lying the ring-forming groove in the roller and underlying the tools, and fibrous material secured under said guard.

22. In a machine for forming rings, the combination of a mandrel, a ring-forming roller, means for n'ioving said parts toward and from each other, a finger adapted to engage the inside of the ring, means normally drawing said linger against the inside of the ring, and connections so constructed that when said mandrel and roller are moved apart, said linger shall be moved toward said mandrel.

In a machine for forming "rings, the combination of a mandrel, a ring-forn'ling roller, means for moving said parts toward and from each other, a finger adapted to engage the inside of the ring, a cord and weight connected to said finger, and tending to'move it against the inside of the ring, and a support connected to said means for moving the mandrel and roller relative to each other, said snnnort engaging said weight when said mandrel and roller are moved apart, whereby said finger is permitted to return toward said mandrel in position to engage the inside of another ring blank.

Eat. In a machine for forming finger rings,

the con'ibination of a mandrel, a finger ringforming roller, means for forcing the mandrel and roller together, auxiliary rollers, and means for mechanically forcing said auxiliary rollers toward said mandrel at a predetermined pressure, said last mentioned means having an arm adapted to be acted upon by said first mentioned means so that when said mandrel and roller are forced together, said means for operating the auxilliary rollers are permitted to act, and whereby when said mandrel and rollers are separated, said auxiliary rollers are re 'tracted.

25. In a machine. for forming rings, the combination of a mandrel and ring-forming roller, a frame movable toward said nandrel, said frame carrying said roller, auxiliary rollers movable toward and from said mandrel, means, comprising a weighted arm, for moving said auxiliary rollers toward said mandrel, means for moving said frame, said means comprising a cam for raising said frame, another cam for raising the weighted arm, an arm adapted to be operated by said other cam, and means connecting said arm with the first-mentioned means, so that when said frame moves away from said mandrel, said weight is raised.

In testimony that I claim the foregoing I have hereunto set my hand.

ARTHUR E. YVALKER, EDWIN J. PRINDLE.

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