US378252A - kinder - Google Patents

Description

(No Model.) 3 Sheet s-Sheet 1.

J. KINDER.

MACHINE FOR MAKING CHAIN. v No. 378,252. Patented Feb. 21, 1888.

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(No Model.) 3 Sheets-Sheet 3.

J. KINDER.

MACHINE FOR MAKING GRAIN. No. 378,252. Patented Feb. 21, 1888.

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llniren Stripes J ULlUS KINDER, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE SOLID LINK CHAIN MANUFACTURING COMPANY, OF NEXV YORK.

lt lACl-ilblE. FOR MAKlNG CHAIN.

SPEQIFICATION forming part of Letters Patent No. 378,252, dated February 21, 1888 (No model.)

To all whom it may concern,-

Be it known that I, JULIUS KINDER, of Brooklyn, in the county of Kings and State of NewYork, have invented a new and useful Improvement in Machines for Making Chain, of which the following is a specification.

The invention is applicable to machines which are employed in making chain of the kind shown and described in my United States Letters Patent NoISGSASi, granted January 4, 1887, and which are composed of two series of similar open links, each link consisting of a cross portion and loops extending at approxiniatcl right angles thereto in 131162831118 direc tion, the loops of each link in the two series embracing the cross portion of the next link in the same series and the links of the two series being alternated lengthwise of the chain and being arranged at right angles to each other in planes which extend lengthwise of the chain. The links composing the chain are solid, or, in other words, they have a continuously'intcgral perimeter, and are cut from sheet metal or from a flattened wire, it being necessary to form each blank from the flat metal and to cut therefrom a long slot and to sever the flattened wire or metal beyond the slot, so as to form a link of oblong shape having a slot extending lengthwise of it.

According to my aforesaid patentthe side bars or members of the link are rounded trans versely to their length on the outer surface, so as to give the link, although it is stamped from flattened metal, the appearance of being formed of wire, and to give the link such an appearance it is necessary that the rounding transversely of the side bars or members should be performed on those surfaces of the link which are outermost in the chain.

1 have heretofore obtained Patent No. 263,538, granted August 29, 1882, and No. 348,850, granted September 7, 1886, both of which illustrate machines designed for making chain of the character above described.

The entire machine is illustrated in Patent No. 263,533, and from that patent the several steps necessary to be performed in making a chain from a continuous flattened wire or long and narrow strip of metal may be ascertained, and may be brielly enumerated as follows:

The flattened wire or metal in continuous length is fed through a gripping jaw or lever which has a reciprocating motion produced by a cam, and is moved a definite distance at each operation, and the metal so fed to the machine first has slots produced in it by a suitable punch and die, and is then cut oil be tween the slots, so as to form a series of oblong blanks each having an oblong slot. These blanks pass to and accumulate in a suit; able channel or slideway, and are by the channel or slideway carried to the chain-making point. The mechanism for actually forming the chain from these blanks comprises a reciprocating slide carrying both aneedle or straightening device and opposite to it a pusher. A blank is by the pusher first advanced through the upturned loops of a link, and has its opposite end portions opened or widened by vertically-moving needles or openers, which serve to expand the slot at the end portions of the link to a sufficient diameter to receive a link-blank. The opened loops at the ends of the link are then bent upward into positions parallel with each other, and in such bent-up position they receive a new blank, which is pushed through them by the pusher, and after the insertion of each blank and its opening a punch descends upon the center of the chain and pushes it downward, so as to perform a preliminaryhending of the loops, aftcr which they are fully bent by means of reciprocating dies advancing upon them from opposite directions.

The chain is formed in an oscillating head, as shown and described in my Patent No. 348,850, and this head is oscillated to and fro a quarter of a revolution, in order that the link- -blanks may be inserted alternately through the chain at positions which are at right angles relatively to each other. As the pusher recedes from the bent-up link after it has ad vanced one link-blank through the bent-up loops, the straightening-needle immediately follows it and holds the chain in proper posi- 9 5 at the same time that it cuts the slot for each link-blank descend from above upon the die, the link-blank would have to be reversed in position or turned over, or else the rounded surface would come upon the inner side of the chain and would be useless. To avoid such reversal in position of the link-blank, and at the same time to present the rounded surface upon the exterior of the chain, I employ, in connection with the punch and die for slotting the strip and rounding the edges of one face of the blank around the slot, a reciprocating mandrel or punch-holder for a punch, working below the die and slotting the blank by an upward movement; and in connection with these parts I employ a curved scrap-guide leading from above the die and serving to direct the scrap produced by the formation of the slots in a curved direction or half-circle, so thatit may then fall downward through a suitable chute. In connection with the slotting-punch there is also employed a cuttingoff punch and die, and both these punches may be carried by the same holder or basepiece. The base plate or piece, which carries the punch or punches may be slid horizontally into a dovetailed or undercut slideway' in a suitable holder, and this holder may be connected by adjusting-screws with the mandrel or block, which is reciprocated to produce the proper movement of the punch or punches. The two punches are arranged one in advance of the other, and rising from the cutting-off die is a channel or slideway, through which the formed blanks are moved upward gradually until at last they come to the point at which they are pushed horizontally into the chain. The slide which carries the grippinglever whereby the feeding of the strip is accomplished is operated by a cam working with its peripherical surface upon the slide, and the top surface of this cam may also be formed to operate the gripping-lever with a cam projection, whereby it will be caused to operate the gripping-lever to grip the strip when it moves the slide forward and will release the lever from its hold on the strip when it moves the slide backward. I construct this cam or eccentric in a compound form-that is to say, it is composed of an eccentric-disk upon an upright shaft and an annular piece or ring having in it an opening eccentric to its circumference and receiving the eccentric-disk, so that the motion imparted to the slide may be varied, as'desired, by shifting the annular eccentric piece circumferentially upon the main eccentric or cam.

According to my present invention the linkblanks are cut from the continuous flattened strip at one level, and the pusher which advances the link-blanks to the chain-making point, where the chain is made, is upon an other and higher level, and the channel or slideway from the cutting-off die ascends to the path of the pusher, which operates at its upper end. I employ guides for the punchmandrel before referred to having V-shaped' faces, and the mandrel itself is divided in the plane of the guides or composed of two parts secured together by screws, and by tightening up these screws lost motion between the mandreland its guides may be taken up. The chain is usually received in a delivery-tube arranged below the chain-making point and below the oscillating head, and in my present machine the main shaft which operates the several parts of the machine is composed of twosections in line with each other and in substantially the same vertical plane as the delivery-tube, and a side shaft and gears are employed for connecting the two sections of the main shaft. I also employ an upper crosshead provided with a pressing-die and supported by upright rods on opposite sides of the delivery-tube, and I employ two vertical slides arranged adjacent to each other and serving, one to support the rods which work a the reciprocating cross-head and the other clamped upon the tube, both said slides being operated by suitable cams. In connection with the fixed head and with the oscillating head above the same, and with the two opening fingers or needles, which have an upward movement through opposite ends of the linkblank for opening the same, and which are guided in the fixed head, I employ bendingfiugers which also have an upward movement on opposite sides of the oscillating head and which serve to preliminarily bend upward the opposite opened ends ofthe link-blank. These bending fingers are arranged diametrically opposite each other and in a plane at right angles to or in a plane transverse to the plane in which the opening fingers or needles operate, and both the opening fingers or needles and the bending-fingers are preferably secured to and project above the delivery-tube and through guides in the fixed head; and I also employ reciprocating dies for completing the bending of the links, and both said dies and the reciprocating slide which carries the pusher for entering the link-blanks into the chain work in substantially the same plane asthat in which the opening fingers or needles are arranged. The oscillating head has a circle of gear-teeth around its circumference, and I employ two small upright shafts with pinions on their upper ends gearing into the teeth of the oscillating head, and which have pinions on their lower ends with which engage two sectors, and said sectors are operated by means of a cam-actuated compound slide, as herein after particularly described.

In the accompanying drawings, Figure 1 is a side elevation, and Fig. 2 a plan, of a machine embodying my invention. Fig. 3 is a vertical longitudinal section in the plane of Fig. 1; and Fig. at is a horizontal section on about the plane indicated by the dotted line a; at, Fig. 1. Fig. 5 is a partly-sectional plan illustrating the two bending-dies, the slides which carry them, and the cams and cam-shaft for operating such slides. Fig. 6 is a transverse vertical section on about the plane indicated by the dotted line y 91, Fig. 3. Fig. 7is a similar view upon about the plane indicated by the dotted line :4 .2, Fig. 3, save that the de livery-tube is shown in elevation and that the cams for operating the slide,which is clamped upon the delivery-tube, are shown in front thereof. Fi 8 is an elevation of the slide which operates the upper punch, also showing the contour of the cams, whereby such slide is rcciprocated. Fig. 9 is a sectional elevation upon the same plane as Fig. 3 and upon a larger scale, including only the fixed and oscillating heads, a portion of the mechanism for turning the oscillating head, the upper cross-head, the punch, the bending-dies, and the upper portion of the delivery-tube, carrying both the opening fingers or needles and the bcndingfingers. Fig. 10 isaplan, on the same scale as Fig. 9, of the oscillating head and the mechanism for operating it. Figs. 11 and 12 are respectively a plan and section of a block in which the punches are guided, and which serves to guide the entering flattened strip, said block comprising adjustable portions for guiding flattened strips of somewhat different widths; and Fi 13 is an elevation, and Fig. le a plan, of a portion of the chain, illustrating the action of the reciprocating bending-fingers, which rise against the opposite end portions of each link-blank to preliminarily bend such end portions upward preparatory to their being finally bent into position by the usual reciprocating dies.

Similar letters of reference designate corre sponding parts in all the figures.

Referring first to Figs. 13 and 14, it will be observed that the links of the chain are in two series, each link comprising a cross portion, as s, and two loops, .9, which are bent upward into and somewhat beyond a parallel position, or, in other words, so that theloopss converge in an upward direction. There are preferably two series of'linlzs in the chain, those of each series having no connection, but being arranged alternately lengthwise of the chain with the links of the other series, and the two series of links (here represented by the letters S S) are in planes at right angles to each other lengthwise of the chain.

lhe metal from which the link'blanks are formed is usually a fiat narrow strip, which may be produced by rolling down a round wire or by drawing the strip of proper trans verse section, and the links are preferably formed with a bend, a in the middle of the cross portion 3, as is described in .my Patent No. 355,454, and those surfaces of the link which are outermost and exposed to view when in the chain are rounded transversely at the corners of the slot, as is also described in my said Patent No. 355,454.

The main frame of the machine, which is suitably shaped to accommodate the several parts of the operating mechanism, is designated by the letter A, and maybe made of metal. It is constructed with suitable bearings, b, in which is journaled a main shaft composed of two sections, B B, which are arranged in line with each other, but separated from each other, for a purpose hereinafter described, and the two sections of the shaft are geared together by a side shaft, B and by suitable spur-toothed wheels, b 22 This side or counter shaft, B, is mounted in a suitable bearing, b, and the main shaft B B of the machine maybe operated from a counter-shaft, B, which is journaled in suitable bearings, b, and on which is a pulley, 13*, and pinion If, engaging a pinion, B on the shaftscction B, and a fly-wheel, B.

O designates a slide which is fitted in a suitable slideway, G, and comprises an upper portion, 0', which is held in suitable position relatively to the main portion G by means of an adj ustingscrew, c, and C designates agripping-lever fulerumed at c and by which, in connection with the fixed jaw c", forming a part of the sliding portion 0, the flattened strip of metal from which the blanks are cut may be gripped. The slide 0 G is operated by a cam or eccentric upon an upright shaft, 0*, which has adjustable collars 0 preferably formed by nuts, and which is geared by bevelwheels 0" with the main-shaft section B. The cam or eccentric for operating the slide G 0" is composed of an inner portion or hub, 0 which is eccentric to the shaft (3*, and the outer annular portion, 0 which has a bore or cavity eccentric to its periphery, in which is fitted the cam portion 0 and which is secured in position after adjustment by a bolt, 0. It will be readily seen that by turning the annular cam portion G relatively to the inner portion, 0 the total throw of this compound cam may be varied, so as to give the slide C G alength of movement to produce blanks of different length, it being understood that by the operation of said slide the strip of metal is advanced the length of a blank at each operation. Upon the top of the cam portion is formed a raised projection or supplemental canne which bears upon the roller 0 carried by the gripping lever G, and consequently the aforesaid cam not only serves to operate the slide 0 C but serves, also, to operate the grippinglever C to cause it to grip and release the strip of metal.

The cuttingjaws and puiiches and the means for holding thejaws in place and for operating the punches will be best understood by reference to Figs. 3 and 6, and also in part from Fig. 4. D designates the die-block, on the face of which the die I) is secured, and said block is held in place by gibs or flanges d, secured by bolts 02 to a portion of the main frame A. Below the die D is a punch-guide, D", through which operates a punch, D", serving in connection with the die D to slot the strip of metal suitably for a link-blank, and to also form the bend s and to round the under surface of the blank in a plane transverse to the length of the side bars or portions of the blank.

As will be hereinafter described, the end portions of the blank are subsequently bent upward, and by operating the punch from beneath the die and causing it to perform its work by an upward movement the blank is rounded upon those surfaces which are in the finished chain on the outer side thereof or exposed to view. v This operation of the punch is advantageous, because if it performs its work by a downward movement to the die the link would have to be reversed or turned over in order that the rounded surfaces shall come upon the outer side of the chain which is exposed to view. The scrap formed by slotting thelink-blanks passes up ward through the die and through a curved guide, d*,whereby it is turned downward and directed to a suitable chute, (2 Slightly in advance of the die D and the punch D are a cutting-off die, D, and a cutting-off punch and feeder, D which punch D is here operated simultaneously with the punch D and serves to cut off a slotted blank from the strip at the same time that the punch D operates to slot the metal in place for the second blank. The punch D not only operates, in connection with the cutting-off die D", to sever a blank from the strip, but also operates to raise the pile of blanks in an upwardly-extending channel or slideway, D", which rises from the cutting- I off die to the level at which the link-blanks are pushed into the chain.

The punches D D are secured in and rise from a suitable base-plate, D which is inserted in a channeled holder, D being slid horizontally into place from one end thereof, and this holder D is secured by screws d, provided with suitable adjusting nuts to the punch-mandrel D". By means of the nuts (1, which are applied to the screws d, the baseplate D may be lifted and the punches D D caused to project upward in true coincidence with their guides in which they work. I have here represented as journaled in the punchmandrel D rollers d d, on which operates a cam, D,which is, in fact, inclosed in the mandrel and is upon the shaft-section B, and by means of this cam D a suitable reciprocating motion is imparted to the punch-mandrel. The mandrel D has downwardly-extending plates or portions whichare parallel with each other, and which embrace the cam D and these plates or portions may be secured together and adjusted toward each other by screws dhaud have V-shaped bearingsurface's fittingguid es 1), which have correspondinglyshaped faces, as best shown in Fig. 4. Consequently it will be understood that by tightening the screws (1 the downwardly-extending portions of the punch-mandrel D may be tightened upon the guides D, and all lost motion between the punch mandrel and said guides will be taken up without disturbing in any way the position of the punches D D or causing them to bind in their guides.

A further understanding of the invention will be obtained by first making brief reference to the several principal parts and then describing their several constructions particularly. The framing A is constructed with a suitable cylindric bore or cavity, A, (shown in Fig. 3, but particularly in Fig. 9,) and in this bore or cavity is guided a reciprocating delivery-tube, E, which in this example of the invention has projecting from its upper end opening needles or fingers E and bending-fingers E". In the top of the bore or cavity A is a fixed head, A having a tapered exterior terminating in a shoulder, 6, whereby it is supported, and on the exterior of which is fitted an oscillating head, E comprising a central upper portion, E, which is suitably notched and perforated to-form the chain and give it the desired transverse section, which is approximately circular. At the top of the oscillating head E and flush with the upper surface thereof, is a suitable slideway, e, and in line with that slideway are a pusher, e", and a straighteningfinger or needle, 6 which are in line with each other and which are secured, respectively, in the main slide E and a supplemental slide, E, which is operated by the main slide, as hereinafter described.

fdesignates the two reciprocating dies, which are alternately caused to approach and recede from each other .in order to give the links their final bend, and these dies are operated by two slides, F and F, which are arranged one below the other, and both of them below the main slide E all said slides being guided in a suitable box-like portion or slideway, A of the main frame.-

G designates an upright shaft suitablyjournaled at h h in the main frame, and which is driven by bevel-wheels G from the main-shaft section B, and on this shaftGis a cam, H, for operating the slide E two cams, H H for operating the slide F, and two other cams, H H*, for operating the slide F. Above the chain-making point is a punch, I, adjustably fixed in a suitable cross-head, 1,which in turn is supported by upright reciprocating rods i on opposite sides of the delivery-tube E. The delivery-tube E is secured by a set-screw, e", or otherwise in a suitable slide, J, and operating parallel therewith, and in part overlapping the slide J is a second slide, J, from which spring the upright bars or rods 1', Sup porting the cross-head I.

As best shown in Fig. 4, the two slides JJ are fitted to V-shaped guides J secured upon the framing, and, as here shown, each of said slides is operated by two cams upon the main shaft B B. As here represented, the shaftsection B has its end cams, P J*, which serve to operate the slide J, and on the adjacent but separated end of the shaftsection B are cams J J, which serve to operate the slide J. 'lwo cams or double cams for operating the slides above described are preferable, becauseby such construction a smoother motion may be transmitted to the several slides. As here represented, the slides J J are provided with suitable rollers, j, on which the cams J JU J opcrate, and when the slide Jis drawn downward by its cams J J the cross-head land the punch Icarried by it are depressed, and the finished chain is forced through the top plate or forming-plate, E, of the oscillating head E, which is best shown in Figs. 9 and 10, and which has guiding-holes p p for the openers and bending-fingers E E". The supplemental slide E, which carries the straightening-needle E is not secured direct to the main slide E, but is suitably guided in the slideway or portion A and the main slide is notched, as shown atf, so as to form two shoulders and a portion of reduced thickness between them, which is fitted to a mortise, f, in the supplemental slide E. Consequently it will be seen thatthe main slide 13" travels farther than the supplemental slide to an extent equal to the difference in length between the supplemental slide E and the notch or portion of reduced thickness f in the main slide.

In the position of parts shown in Fig. 9, and also in Fig. 3, the main slide has moved to its left-hand position, and through the shoulder f has moved the supplemental slide l3. snfiiciently far to advance the straightening needle 0 through the upturned loops of the chain-link; but when the movement of the main slide 15 is reversed and takes place toward the right hand the supplemental slide 13 is not moved until the link-blank pushed off from the pile in the channel or slidewayD and into the slidcway c has advanced nearly to the end of the straighteningneedle e, and as soon as this occurs the shoulder at the opposite end of the notchf strikes the left-hand side of the supplemental slide E and retracts the straightening-needle c from the link as fast as the blank is advanced into the link by the pusher 6". It will be observed that this construction permits the straightening-needle c to remain a longer time in the upturned loops of thelink than would be possible if the said needle 6 were attached to the main slide E and conseqnently the proper position of the upturned loops of the link to receive the entering blank advanced by the pusher e is insured and constant, and breakage produced by the advance of the link-blank by such pusher when the chain is slightly out of position is prevented.

The purpose of the opening needles or fingers E is to spread the end portions of the blank, as is best shown in Fig. 14, in order that they shall he of a size to receive the ends of the blank entered into them after the end portions or open loops are bent upward, as shown in Fig. 13. The purpose of the bendingfingers FF is to bend upward the opened end portions of the link-blank to the position shown in Fig.

13, and is preparatory to the operation of the dies f for still further bending inward such end portions to the position shown in the finished portion of the chain. As here shown, the several slides E F F are all provided with rollers f on which the several cams H, H, H H and H. operate, and, although not essential, it is preferable to employ rollers in allthe slides, because by them the wear which results from a cam bearing upon a fixed surface is avoided, and lost motion in the machine pro duced by such wear is also avoided. Hence it follows that the several parts of the machine will operate with greater certainty and in more accurate time than if bearing-rollers for the cam were not used.

I will now describe the mechanism which I have here illustrated for operating the oscillating head E premising, however, that other forms of mechanism may be employed for the purpose. Upon the shalt G is a pinion or wheel, Zawhich gears into a larger wheel, K, carried by a stud, 7;, depending from the framing of the machine, and above this wheel K is a cam, K, which imparts a reciprocating motion to the slide K said slide being here shown as provided with roller 76". Adjacent to the cylindrie bore A, and as best shown in Fig. 9, are two small upright shafts, Ki, at the upper ends of which are pinions k engaging a circle of gear-teeth on the oscillating head E and on the lower ends of which are pinions It, with which engage pivoted sectors m, as best shown in Fig. 4. These sectors are operated by a block, m, adj ustably secured by holding-screws m and by a distance-screw, m to the slide K and as here represented the block on is connected with the sectors m by rollers or pins m engaging slots m in the sec tors. It will be seen that by means of the screws m m the reciprocating movement imparted by the slide K may be varied in length as transmitted to the sectors m, so as to produce through the upright shafts K just the desired amount of turning movement transmitted to the oscillating head E and it will turn backward and forward to just the extent desired, and will be arrested and held in exactly the same position at the termination of each movement of the slide. This is importaut, as the chain turns with the head E, and as here represented the parts are adapted to produce an exact quarter-revolution of the chain and head, and so that link-blanks to form the links of the two series may be slipped into position at truly right angles to each other as the head E and the chain are turned a quarter of a revolution between the entrance of two blanks.

As shown in the drawings, the main slide Eflwhich carries the pusher e" and operates through lost motion upon a straightening-nee- ,dle, e is just about to move toward the right hand, and as it moves in that direction the pusher e thrusts a link-blank through the previously-opened and bent-up loops of one of the before-inserted link-blanks. After the link has been inserted, the punch I is brought down upon the center ofthechain, and-the slide J, which is clamped upon the deliverytube E, is raised, thereby thrusting the opening needles or fingers E through the blank which is inserted, and by means of the bending-fingers E bending upward the opposite end portions or loops of the previously-inserted blank, as shown in Fig. 13. The dies f are then operated by the slides F F to bend inward the loops of the previous link to the final position. (Shown in Fig. 13.) After the opening needles or fingers E and the bendingfingers E have receded, the oscillating head E is turned a quarter of a revolution, a new blank is inserted and opened, the end portions of the last blank inserted are bent upward by the bending-fingers E and the link which was before bent upward by the bendingflngers is bent inward to final position by the diesf..

It may, in some instances, be desired to cut the link-blanks from a strip'of metal slightly wider than ordinarily used,in order to make a stronger link, and in that case I may provide the guiding-block D for the punches with adj ustable guides. (Best shown in Figs. 12 and 13.) On opposite sides of the aperture in which the punch D works may be pairs of guides 0, which have their upper faces rabbeted or channeled, as shown in Fig. 12, and which are adjusted by screws 0 0 toward and from each other. The screws 0 connect the blocks or pieces 0 with the main block D, and the screws 0 are distance-screws or set-screws,which control the movement of said blocks 0 of each pair away from each other. By adjusting these screws 0 0 the blocks 0 may be held fixedly in their proper position and may be adjusted, wheneverdesired, to vary the width of the channel 0 in their upper parts, through which the strip passes and by which it is guided.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a reciprocating gripper for feeding periodically forward a flattened strip, of a die and punch for slotting the strip and rounding the edges on one face of the blank around the slot, and a reciprocating mandrel or punch-holder for the punch working below the die and slotting the blank by an upward movement, substantially as herein described.

2. The combination, with a reciprocating gripper for feeding periodically a flattened strip, of a die and punch for slotting the strip and rounding the angles around the slot on one face of the strip, a reciprocating mandrel or punch-holder for the punch working below the die, and a curved scrap-guide leading from above the die and serving to properly direct the scrap downward, substantially as herein described.

3. The combination, with a reciprocating gripper for feeding periodically a flattened strip anda slotting punch and die, of a baseplate from which the punch springs, a holder saazsz constructed with adovetailed or undercutslideway receiving said base-plataareciprocating mandrel or block, and screws connecting the holder with the mandrel or block, substantially as herein described.

4. The combination, with a reclprocating gripper for feeding periodically a flattened the cutting-off die, of a reciprocating mandrel or holder carrying both the punches and arranged below the dies, so as to cut byan upward movement, substantially as herein de scribed.

5. The combination, with a punch and die, of a slide carrying a gripping-lever, a shaft, and a compound eccentric on the shaft composed of an eccentric-disk and an annular piece or ring having in it an opening eccentric to its circumference and receiving the eccentric-disk and having formed on its surface a cam for operating the gripping-lever, whereby the movement imparted to the slide may be varied as desired, substantially as herein described.

6. The combination, in a chain-making machine, of the link opening and bending mechanism, substantially as described, a channel or slideway for blanks, a slide and a pusher carried thereby for pushing the uppermost blank from said channel or slideway into the chain, slotting and cutting-off dies and punches ar ranged one in advance of the other at the lower end of the channel or slideway, a reciprocating holder or mandrel below the dies and carrying the upwardly-presented punches, and a reciprocating gripper for feeding periodically a flattened strip, substantially as herein described.

7. The combination, with a reciprocating gripper for feeding periodically a flattened strip, of slotting and cutting-off punches and dies, a reciprocating punch-mandrel working below the dies and carrying the punches, and guides for the mandrel having V-shaped faces, the mandrel being divided in the plane of the guides or composed of two parts secured together by screws, which serve to take up lost motion between the mandrel and guides, substantially as herein described.

8. The combination, with the reciprocating delivery-tube and openers and bending-fingers operated thereby, of the main shaft composed of two separated sections inline with each other and substantially in the same plane as the tube and a side shaft, B, and gears b 6, connecting the two sections of the main shaft, substantially as herein described.

9. The combination, with a reciprocating slide for feeding the link-blanks and a delivcry-tube armed at the top with opening-fingers, of an upper cross-head provided with a pressing-die and supported by upright rods on opposite sides of the tube, and two slidesone supporting said rods and the other clamped upon said tube and arranged side by side-and cams for operating said slides, substantially as herein described.

10. The combination, with a fixed head and an oscillating; head above the same, of two opening fingers or needles having an upward movement through opposite ends of the link blank for opening the ends thereof and guided in the fixed head, and bending-fingers, also having an upward movement to preliminarily bend the ends of thelink-blank and also guided in the fixed head, a reciprocating slide carrying a pusher to advance the straight blanks into the chain, and reciprocating dies moving in a plane parallel with the slide and pusher for completing the bending of the links, sub stantially as herein described.

11. The combinatioinwith a fixed head surmounted by an oscillating head and a reciproeating delivery-tube below the fixed head, of opening fingers or needles and bending-fingers arranged in planes transverse to each other and all secured to and projecting above the tube through guides in the fixed head, re ci procatin g dies for completing the bending of the links, and a reciprocating slide carrying a pusher for entering link-blanks into the chain,

both said dies and slide Working in substantially the same plane as that in which the opening fingers or needles are arranged, substantially as herein described.

12. The combination, with the fixed head and the tnrnable head arranged above the same and provided with gear-teeth, of two upright shafts having pinions on their upper ends gearing into the teeth of the turnable head, a reciprocating caniactuated slide, and two sectors geared with pinions on the lower ends of the said shafts and eonneetedwith said slide, substantially as herein described.

13. The combination, with the oscillating head and its circle of gear-teeth, of the upright shafts K provided with pinions It It, the former of which engage the head, the see tors m, the cam-actuated slide K and the block m, secured thereto by adjusting-screws and having projections which engage with and operate the sectors, substantially as herein de scribed.

JULIUS KINDER.

Witnesses:

G. HALL, MINERT LINDEMAN.

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