US1087876A - Machine for making bead chains. - Google Patents

Description

G. w. GOODRIDGB & w. J. GAGNON.

MACHINE FOR MAKING BEAD CHAINS.

APPLICATION FILED MAY 31, 1913.

Patented Feb. 17, 1914.

4 SHEETS-SHEET 1.

G. W. GOODRIDGE & W. J. GAGNON.

MACHINE FOR MAKING BBAD CHAINS.

APPLICATION FILED MAY 31, 1913.

1,087,876, Patented Feb. 17, 1914.

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G. W. GOODRIDGE & W. J. GAGNON. v MACHINE FOB. MAKING BEAD CHAINS.

APPLICATION FILED MAYBL 1913.

1,087,876. Patented Feb. 17, 1914.

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MACHINE FOR MAKING BEAD CHAINS. APPLICATION FILED my a1, 1913.

Patented Feb. 17,1914.

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GILBERT w. Goonrunen AND WILLIAM J. GAGNON, or nnrnenromr, CONNECTICUT,

ASSIGNORS TO THE BRYANT ELECTRIC COMPANY, OF

A CORPORATION OF CONNECTICUCE. a

MACHINE FOR MAKING BEAN CHAINS.

Specification of Letters ratent. Patented Feb 17 1914 A Application filed May 31, 1918. Serial No. 770,941.

To all whom it may concern:

- Be it known that we, GILBERT Goon- RIDGE and WILLIAM J. GAGNON, both citizens of the United States of America, and residing in the city of Bridgeport, county' of Fairfield, and State of Connecticut have Q lnvented' certaln new and useful Improvements in Machines for Making Bead Chains,

' cured by the means hereinafter described.

In the accompanying drawing, Figure 1 is .an enlarged sctionalview of part of a bead chain such as may be produced by the aid of our invention; Fig. 2 is a diagrammatic plan View illustrating in simple form some of the principal operating parts of our mechanism for the manufacture of the chain;- Fig. 3 is a corresponding sectional elevation; Fig. his a similar view with the parts in other-positions; Fig. 5 is a front elevation of the complete machine; Fig. 6 is a side elevation; Fig. 7 's a view of one of t-hemovable die parts; figs. 8, 9 and 10 are views of modifications. r l

,Our invention is especially useful for the manufacture of head chains, in which the connecting dumb-be-ll links are formed of tubular material, as describedand claimed in, the-Gagnon Patent No. 1,078,494, dated November 11, 1913, and we will describe our improvements with particular reference to the production of a bead chain of that construction, although our invention or many features of it, may be em loyed in the manu-- facture of other forms 0 bead chains. 'The .Gagnon construction of bead chain is illustrated in Fig. 1, andcomprises a series of balls B, B,'united by dumb-bell links D,

D of hollow material, instead of solid wire, as was 'previo'usly the common practice.

Our means for making the chain will be best understood by reference to Figs. 2, 3, 4: and 5, these latter showing in diagram the operations as carried out by the principal operative parts of our machine.

We suppl p to the machine from two separate reels 6r other suitable means two ribbons A and B, (Figs. 2, 3 and 4:), of the metal or metals to be used in making the chain, the ribbon A being of a width suflicientwhen drawn up longitudinally into tubular sha e to form a tube less than the diameter on the desired dumb-bell heads. The ribbon B is wider, being of a width suflicient when drawn upinto tubular shape to form a tube of the diameterof the hollow balls of the chain to be made. The strip B is preferably of somewhat thicker material than the strip A. The strip A enters and passes through the conical opening in the drawing or tube-forming die I), and thence oasses; between swaging dies E, E in which re a succession of recesses eof gradually increasing depth in the direction of the feed movement of the material being operated upon, so as to gradually reduce the diameter of the parts of the tube, while leaving enlargements or dumb-bell heads f in scale at the left of Fig. 1. Preferably one of these dies E is stationary, while the other E is caused to reciprocate toward and from the die E From these dies E, E the tubular strip a of united dumb-bells passes into and through the conical drawing die F, which acts -to draw into tubular form 1) around the tubular strip a the ribbon of metal B. The two'tubes a and b,-thus inclosed one within the other, thence pass to the swaging dies G and G whose adjacent.

faces are formed with cup-shaped depressions of radually increasing depth, to gradually fbrm the outer tube 17 into hollow balls, as the material is intermittently fed forward. The semi-spherical depressions in- BRIDGEPOBT, CONNECTICUT,

the faces of; these dies, G, G toward the exit end,-say the last six depressions,are slightly oflset alternately, first in one direction and then in the other, thereby causing the dies to break the balls apart from each other". may also be spaced apart slightly more than These last depressions in the dies loo - ing the drawing dies D and F distance are the preceding depressions, to aid in breaking the balls apart.

'To complete the separation of the balls with certainty and also to break the dumbbell sections within the balls, the thus formed chain passes from the dies G, G into a sinuous path, which may be provided by jaws H,'H with wave-like faces, the lower jaw H being fixed and the upper jaw movable with the movable swaging dies, or otherwise. The movable jaw is caused to approach the fixed jaw H sufliciently close tobend the chain-backward and forward without nipping it, as indicated in Fig. 3.

The two tubes are simultaneously fed through the swaging dies intermittently, the

drawing dies themselves being availed of.

as the feeding means. For this purpose, these drawing dies D and F are mounted in brackets 14 and 15 respectively, and these brackets in turn are mounted upon one and the same horizontals'l'ide 16, so that the two s D and F always bear a definite relation to each other, and by suitable means at the proper time the slide 16 ismoved to the left or to the right a distance proportional to i the Size of the balls of the chain. By pref erence this movement, which is the feed movement, is made equal to the diameter of two balls.

The cycle of operations is as follows The drawing dies D and F'being in'the position shown in Figs 2 and 3, closely adjacent to the respective pairs of'swaging .dies, the upper swaging dies E and G, working iIr unison, are simultaneously caused to ap-- proach their respective lower dies- E and G to act upon the tubular core a and the tube 6 for the balls.- Then while these pairs of swa 'ing dies still hold the tubes between them, t e slide, 16 is moved to the left carryequal to the diameter of two chain balls, thereby drawing the ribbons A and B into tabular form for a corresponding length. Then the swaging dies being opened, the drawin dies D and F are fed forward to the rig it a distance equal to the diameters of two balls for a new action of thes'waging dies upon the tubes. 7

In order to prevent the formationof fins andto improve the appearance of the product, the tubes a and I) should be turned-between swagmg operations. It will suflice' to turn them about 90 betweenswa'ging ac-.

tions". This may be conveniently accomplished by mounting these, drawing dies D and F so as to be free to turn or oscillate: in'the brackets 14 and 15, and by'securiiig to-the exterior of the dies-pinions 10- and .111

meshing with racks 12 and 13 respectively and by reciprocating these. rackssimultaneously to give the desired quarter turns backward and forward, to the dies D and F and "consequently to the tubes, between the the drawing dies D,

swaging actions. The result is the production of a bead chain such as illustrated 1n Fig. 1, with the headed links formed ofv -bells .in the ball tube and'liability to get broken pieces of chain durin the operation is prevented. This is further aided by the simultaneous swaging operations upon the two tubes, and also by the simultaneous drawing of the two ribbons into tubes.

In Figs. 5 and 6, illustrating the complete apparatus, we have not shqwneither the reels of ribbon or the ribbons or the chain information, because'of the smallness" of the scale of these views, butthe essential parts of the mechanism Will be readily identified from the foregoin description.

"Thus the slide 16, carrying t e two draw,-

ing. dies D and F is mounted to reciprocate in horizontal guide ways in the frame K of the machine, being actuated at the'proper times by a lever 17, pivoted at 18 to the frame and operated by a grooved cam 19 on the main driving and crank shaft 20 0f the machine. The rack bars 12 nd 13 for oscillating are guided horizontally in the lower part of the frame at right angles to the slide 16, and are acted upon by arms 32 (indicated in dotted lines in ,Fig. 6') fixed upon a horizontahshaft 33, which-carries at its outer'end at the left of the machine, Fig. 5) an arm 34. This arm has an antifriction roller running in a cam groove 35 on a shaft 36, which also carries a gear wheel 37 meshing into a pinion38 on the end of the shaft 20 (Figs. 5 and .6). This caring and the cams are such as to give t e timing of movements hereinbefore described with relation to Figs. 2 to 4.

The lower swaging dies E and G (Fig. 5) are fixedly mounted upon the base of the frame K, while the corresponding upper times a-ndsimultaneously by cran s 21 on the shaft 20' acting-through connecting rods joined to the die gates or slides 23, 24, 1 guided in vertical guide ways 25, 26 in the fdies E and G are reciprocated at ap ropriate fupright portio of the frame K- These upper dies are c nected to their respective slides or gates 23 (24) with a lost motion, as illustrated in Fig. 7, which shows, on a larger scale than Figs. 5 and 6, "a face view of the die G in'its slide 24, with the cover plate detached. The fiat stem g of the die carrier is guided vertically in a pocket 28 in the slide 24, but its extent of freedom of 9, whereupon at each back and 'forth move-- the double purpose,

' holding it in Fig. 10, the drawing movement therein is limited by a removable pin 27 passing through a slot 29 in the stem g. Springs 30 tend to press the die G downwardly so far as the in 27 will permit, when the slide 24 rises. his construction is for first, of enabling the upper dies E, G, to-stay down and hold the material against the leftward or drawing movement, (Figs 4 and 5) of the drawing dies D and F, during the beginning of the rising movement of the slides or gates 23 and 24, and second, of permitting the dies L, G to come down again easily onto the material being operated on, after .each feed movement, so that the material may the bet ter iind its correct position between the dies, before the actual'swaging action.

Instead of mounting the-two drawing dies in the simple forms illustrated inFigs. 2 to 6, we prefer to employ the constructions illustrated in Figs. 8 to 10, in order to fa cilitate reloading the machine with ribbon material whenthe supply of one or other of the ribbons has run out. .Thus when the supply of ribbon for the dumb-bell core has run out, it is desirable to be able to operate the machine temporarily without feeding the tubing for the balls. For this purpose, we prefer to construct the pinion 11 which is pinned to the left, as shown in Fig. 8, and to normally hold the die F in its bearings in the bracket 15 by a latch 40 hinged at 41 to the outside of the bracket, the latch in its closed osi tion shown in the Fig. 8, and by' full ines in Fig. 9, lying'over the head of the die and lace. When it is desiredto stop the draw ng and feeding of the tubing in the die F, the latch 40 is thrown up to a position such as shown by-dotted lines in Fig.

ment of the slide16 the die F will simply slip back and forth a distance equal to the movement of the slide 16. In order to more surely keep the ball tube in place during this time,'the pin 27 which secures the upper die G in the slidej24 may be withdrawn, and the upper die dropped upon the lower die. On the other hand, when the supply of ribbon for the ball tubing gives out, vit is desirable to withdraw the dumb-bell core.- To do this, we provide for the withdrawal of the die D with he dumb-bell core material carried by it. Accordingly, as shown in die D is, connected to its pinion 10 by means of a key and keyway 42, so that when the retaining latch 4%, which is similar to a position such as indicated by dotted lines in Fig. 9, the die D will be freed and can be withdrawn" endwise with the tubing contained in it, and thereafter reinserted, when the ribbon supply for the balls has'been renewed.

the die F with a shorthub on' the latch 40, is turned to We claim as our invention:

1. A machine'for making bead chains, comprising means for shaping a tube into a series of connected dumb-bells, in combination with means for forming a tube around said dumb-bell shapes, means for shaping said outer tu'beinto the form of connected hollowballs over the dumb-bells, and de-' .vices for actuating said two shaping means in unison.

2. A machine for making bead chains, comprising means for formlng a series of connected dumb-bell shapes in combination 'with means for forming a tube around said dumb-bell shapes, means for shaping said outer tube into the. form 0f connected hollow balls over the dumb bells, devices for actuating said two shaping means in unison and intermlttent feeding devices operating on the dumb-bell shapes and the outer tube simultaneously.. c

3. A machine for making bead chains,

comprising means for shaping a tube into a series of connected dumb-bells in combina tion with means for forming a tube around said dumb-bell shapes, means'for sha'ping said outer tube into the form of connected hollow balls over the dumb-bells, devices for actuating said two shaping means in unison and intermittent feeding devices op-.

erating onthe dumb-bell shapes and router tube simultaneously.

- i 4. A machine for making bead chains, comprisin means for, a tube, and means for shaping said tube into a series of connecteddu-mb-bells in combination with means for forming a tube around said dumb-bell shapes, means for shaping said outer tube into the form of connected hollow balls over 'the dumb-bells and devices for actuating said two shaping means in unison. 1

drawing a ribboninto 5. A machine for making bead chains,

for drawi'nga ribbon into rising means for shaping said tube into comp, a tu e, and means a series of connected dum-bells, in combination with means for forming a tube into hollow balls over said dumb-bell shapes, devices for actuating said two shapingmeans in unison and means .whereby'the 'two tubes are fed together .intermittent lyn.

6. A machine comprising reciprocating swaging dies to shape a tube into a series of connecteddumh-bells in combination with reciprocatswagin dies to shape another tube into ho low balls. over said dumb-bells, devices for actuating said two sets of swaging dies in unison and means for feeding the two tubes together intermittently.

7. A machine for making bead chains, dies for drawing ribbons into comprising di s to shape sa1d two two tubes, swaging tubes, one into connected dumb-bells and the other into connected hollow balls over said for making bead chains,

dumb-bells, means for actuating said two swaging meansin unison with each other, and means whereby the tubes are fed together intermittently.

8. A machine for makingv bead chains, comprising dies for drawing ribbons into two tubes, sets of dies to shape saidg two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumb-bells, means for actuating said two sets of shaping dies in unison and means for reciprocating the drawing dies together in one direction to draw the ribbons into tubes and the other direction to feed the tubes through the shaping dies.

9. A machine for making bead chains, comprising dies for drawing ribbons into two tubes, sets of swaging dies to shape said two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumb-bells, and means for oscillating dies first in one direction and said drawing then in the other direction between swaging actions for the purpose set forth.

10. A machine for making bead chains, comprising dies for drawing ribbons into two tubes, setsof swaging dies to shape said two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumb-bells, means for oscillating said drawing dies first in one direction and then in the other between swaging actions, and means for reciprocating said drawing dies together, in one direction to draw the ribbons into tubes and in the other direction to feed the tubes through the swaging dies.

11. A machine for making bead chains, comprising means for shaping a tube into a series of connected dumb-bells in combination with means for forming a tube around said dumb-bell shapes, means for shaping said outer tube into the form of connected hollow balls over the dumb-bells, means for turning said tubes back and forth at intervals and devices for actuating said two shaping means in unison.

12. A machine for making bead chains, comprising means for drawing ribbons into two tubes, two. sets of swaging dies actuated in unison to shape said two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumbbells, and means for turning said tubes intermittently back and forth, for the purpose described.

13. A machine for making bead chains, comprising 'means for forming connected dumb-bells, means for passing over the dumb-bells a tube of connected balls and devices for bending the chain on leaving the ball-forming means, for the purpose described.

14. A machine for making bead chains, I

tube into conhaving dies for shaping a nected balls, the depressions at the leaving end of the dies being offset, for the purpose described.

15. A machine for making having sets of swaging dies to shape a tube into connected dumb-bells and to shape another tube into connected hollow balls over the dumb-bells, and reciprocating gates carrying the movable dies with lost motion, for the purpose described, in combination with means for intermittently feeding the tubes through the dies.

16. A machine for making bead chains, having swaging dies to shape a tube into connected balls anda reci rocating gate carrying the movable die with lost motion, in combination with means to intermittently bead chains,

feed the tube through the dies.

17. A machine for making bead chains, comprising "dies for drawing ribbons into two tubes, sets of swaging dies to shape said two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumb-bells, means for reciprocating the drawing dies together, in one direction to draw the tubes and in the other direction to feed the tubes, and means for readily disconnecting the drawing die for the outer tube to stop the drawing and feedingactions thereof,

.18. A machine for making bead chains, comprising dies for drawing ribbons into two tubes, sets of swaging dies and operating slides to shape said two tubes, one into connected dumb-bells and the other into connected hollow balls over said dumb-bells, means for reciprocating the drawing dies together, in one direction to draw the tubes and in the other direction to feedthe tubes, means for readily .disconnecting'the drawing die for the outer tube and means for readily detaching the movable swaging die for said tube from its slide, to clamp said outer tube.

19. A machine for making bead chains, comprising dies for drawing ribbons into two tubes, sets of swaging dies to shape said two tubes, one into connected ,dumbbells and the other into' connected hollow balls over the dumb-bells, means for reciprocating the drawing dies together, in one direction to draw the tubes and in the other direction to feed them, and means for readily withdrawing the die for the dumb-bell tube and its contained material, for the purpose describcd. 20. A machine for making bead chains, having a drawing die to draw a ribbon into a tube, swaging dies to shape said tube into connected balls and a reciprocating gate carrying the movable swaging die ,with lost motion, asand for the purpose set forth.

21. A machine-for making bead chains, having two drawing dies to draw ribbons into two tubes, sets of swaging dies to shape names to this specification, in the presence said two tubes, one lnto connected dumb of two subscrlblng wltnesses.

bells and the other into connected hollow balls over said dumbbells, and reciprocating gates carrying the movable swaging dies with lost motion, as and for the purpose Witnesses:

set forth. H. M. WICHERT,. In testimony whereof we have signed our M. A. BARRY.

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