US1046060A

US1046060A - Link-perforating and chain-forming machine.

Info

Publication number: US1046060A
Application number: US48239809A
Authority: US
Inventors: Ferrand F Ellis
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-03-09
Filing date: 1909-03-09
Publication date: 1912-12-03
Anticipated expiration: 1929-12-03

Description

F. F. ELLIS.

LINK PERFORATING AND CHAIN FORMING MACHINE.

APPLICATION FILED MAR. 9, 1909.

1 46,060. Patented Dec. 3, 1912.

5 SHEETS-SHEET 1. 24 27 \xZ T/vsssss A ENTER I 7 f ww F. P. ELLIS. LINK PERPQRAT'ING AND CHAIN FORMING MACHINE.

APPLICATION FILED MAR/9, L909.

Patented Dec. 3, 1912.

5 SHEETS-SHEET 2.

P. P. ELLIS. LINK PERFORATING AND CHAIN FORMING MACHINE.

APPLICATION TILED MAR. 9, 1909.

1,046,060. N Patented Dec.3, 1912.

P. P. ELLIS.

LINK PERFORATING AND CHAIN FORMING MACHINE.

APPLICATION FILED MAB. 9, 1909 6 SHEETS-SHEET 4.

I ll 0' Vim/55555 n fi/VE/Vfflff M if fry WM COLUMBIA PLANOGRAPH c0., WASHINGTON. D. C.

F. P. ELLIS.

LINK PERPORATING AND GHAIN FORMING MACHINE.

APPLICATION FILED MARQQ, 1909.

Patented Dec. 3, 1,912.

5 SHEETS-SHEET 5.

Airy/ way TlhlTTED STATES PATENT FFTQE- FERRAND F. ELLIS, OF ONEIDA, NEW YORK.

LINK-PERFOBATING AND CHAIN-FORMING MACHINE.

Application filed March 9, 1909.

10 cZl whom it may concern:

Be it known that I, FERRAND F. Plants, of Oneida, in the county of Oneida, in the State of New York, have invented new and useful Improvements in Linkd erforating and Chain-Forming Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improve ments in link perforating and chain forming machines, by which the flat imperforate sheet metal blanks are automatically perforated, bent and interlinked in succession, one with another to form a chain of any desired length.

The imperforate blanks are out to the desired form from flat sheet metal and are placed in quantity one upon the other flatwise in a suitable magazine, and are automatically and successively fed one by one between suitable dies which form perfora tions in the opposite ends of the blanks as they are successively presented thereto, the perforated blank being successively removed from the dies and automatically folded or bent around a forming pin, leaving its perforations in alinement with each other through which the next succeeding perforated blank is threaded and similarly bent around the forming pin, this operation being repeated for each link to form the chain.

The operation of cutting or perforating the blanks by the dies necessarily leaves a slight bur around the edges of each perforation next to the female die, and at the same time slightly rounds the edges of the perforations on the side next to the male die, so that if in bending the perforated blank upon itself to form the link, the burs are exposed on the outer faces of such link, it produces undue abrasion or cutting of the adjacent portions of the links of the chain, and one of the objects of my present invention is to obviate this result by folding or bending the links so that the burs will beat the in side or adjacent faces of each link.

The main object, however, is to automatically perforate, fold and interlink the links one with the other with the least possible mechanism and at the same time to produce a nrore perfect link and more durable chain with greater speed and economy than has heretofore been practised.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Serial No. 482,398.

Other objects and uses relating tothe specific parts of the machine will be brought out in the following description:

In the drawingsFigure 1 is a top plan of a link perforating. and chain forming machine embodying the various features of my invention. Fig. 2'is a front elevation of the same machine, the perforating dies being shown as separated and the previously perforated link as moved from between the dies through one of the previously formed links and about to be rotated a quarter turn for bending around the forming pin. Fig. 3 is an end elevation of the right hand end of the machine shown in Figs. 1 and 2. Fig. 4 is atransverse Vertical sectional view taken on line 44 Fig. 1. Fig. 5 is a similar transverse vertical sectional view taken on line 5-5 Fig. 1, showing particularly the perforating dies and magazine for the blanks, together with the .mechanism for feeding the blanks one by one from the magazine to the dies. Fig. 6 is an enlarged top plan of a portion of the machine showing the slide for feeding the perforated blank from the dies to the link forming mechanism, and also showing the means for turning the link and gripping jaws for bending such link around the forming pin, the magazine with the imperforate blanks therein being shown in section. Fig. 7 is an enlarged sectional view taken on line 77 Fig. 6. Fig. 8 is an enlarged detail plan of the rear end of the slide upon which the gripping fingers are mounted and cam for operating said slide and fingers. Fig. 9 is a sectional view taken on line 9--9 Fig. 8. Fig. 10 is an enlarged sectional view taken on line 10-1O Fig. 1.

Practically all of the moving parts of this machine are supported directly or indirectly upon a suitable supporting frame 1' and derive their motion from a main driving shaft 2- having a pulley 3, adapted to be connected by a belt to any available source of power not shown, said.

shaft being journaled in suitable bearings 4 on the main frame.

The imperforate metal, blanks, as a Fig. 6 are stacked one upon the other in a vertical column within an upright guide tube or magazine 5, the lower one resting upon a horizontal bed or guide plate 6- in the path of one end of a reciproca tory feeding bar 7- which is guided against vertical displacement in parallel ways -8.

The lower end of the magazine -5 rests upon the ways 8- and bridges across the intervening space between said ways and in which the feeding bar 7 is movable, leaving a clearance between the lower end of the magazine -5 arid'guide plate 6 corresponding to the thickness of one of the blanks-and feed bar 7- to'per'mit the latter to pass through such clearance and thereby feed the lowermost blank from the magazineto a position between suitable perforating'dies 9 and-1'O which are located just at the rear of the magazine -5.

Thelower female die 9 is preferably made separate from the frame but is stationarily seated in a recess 11 in a portion thereof with its upper face in a plane substantially coincident with that of the plate -6-- and forms a continuation of said plate for supporting the blank. This female die 9 is provided with a pair of apertures 12 extending therethrough from top to bottom in alinement with an underlying opening 13 in the top of the frame or bed 1., the latter opening serving as a convenient outlet for the portions of the blank which are cut out by themale die 1'0, the die 9 being usually made of hardened steel and may be removed when worn or otherwise impaired and replaced by a new one. 7

The male dies 10 are secured in the lower end of a vertically reciprocating plunger 14, and are movable into and out of the upper ends of the apertures 12 in the female die with which they register, beingof substantially the same cross sectional area as'their corresponding apertures 12 for'punching out portions of the opposite ends of the blanks a as the latter are successively fed between the dies, thereby leaving each blank with a pair of similar perforations which are adapted to be brought into alinement as the flat link is folded around the forming pin in the manner, hereinafter described.

Ahorizontal feed bar 15 is reciprocatedalong suitable ways 16 in the upper portion of the frame 1- at right angles to, and in the same plane as that of the feed bar 7 and just at the rear of the plane of movement of the'dies 10, and serves as alimiting stop or abutment against which the imperforate blank is fed and temporarily held by the feed bar' -7 during theoperationof perforating the blank. As

thebar' -15' is moved inwardly into position-to beengaged' by the blank it also opera't'es tb' feed the previously perforated blank inte position to be folded or bent around the forming" pin: by' the gripping jaws hereinafter described, so that it performs the double function of a limiting stop and feed bar. The feed bar -7 is'moved inwardly intermittently step by step, a part of such movement serving to feed the lowermost blank from the magazine -5 against the front edge of the bar l5 or directly between the dies -9- and 10, whereupon the plunger 1lis depressed to force the dies l0- through the underlying blank for perforating the latter. As soon as the blank is perforated the plunger 14 and dies -10- are withdrawn upwardly and the bar 15 is also withdrawn to the left out of engagement with the perforated blank, whereupon said blank is fed rearwardly into the path of movement of the bar -15 by the additional rearward movement of the feed bar -7, as will be more clearly pointed out in the following description.

Mechanism for feeding the blanks. from the magazine to the perforating eZies.Secured to the main shaft 2 is a cam disk -17 having substantially half of its periphery concentric with its axis and the remaining half provided with a quick throw cam portion 18 and a comparatively short depression 19. A forwardly and rearwardly extending lever -20- has its rear end bifurcated or slotted and saddled upon the shaft -2 to slide transversely thereof, and its front end is pivotally connected to an upright rock arm 21 having its upper end secured to a rock shaft 22- having an arm 21 connected by a link 23 to the sliding feed plate 7.'

Mounted upon the rear end of the lever 20 in front of the shaft -2 is a roller or stud 24 which is held against the periphery of the disk 17 by a spring 25 acting upon the lever -20-, said spring having one end connected to the rear end of said lever and its opposite end connected to a bracket 26 on the main sup porting frame and, therefore, normally tends to draw the lever 20 rearwardly, thereby holding the roller or stud -2t in contact with the periphery of the disk 17. The cam disk 17 is shown in Fig. 5 in position to engage the advance end of its concentric periphery with the roller, in which position the feed plate -7 is forced inwardly a suflicient distance to feed the link blank between the dies ready to be perforated, and is allowed to remain in this position by the concentric portion of the disk 17 during the perforating operation of the plunger -14. and return there of to its starting position, and also during the withdrawal of the feed bar 15 from the rear of the now perforated link. By the time the bar 15 is withdrawn in the manner just described, the disk -17 will have advanced practically a half revolution, whereupon the depression 19- will have been presented to the roller -2t allowing the latter to enter said depression and thereby permitting the spring -25 to draw the lever 20 and feed plate 7 connected thereto still farther rearwardly until the perforated link blank is brought into the path of movement of the feeding bar 15. This second movement of the feeding plate 7 is "only momentary by reason of the comparatively short length of the depression, whereupon the eccentric portion 18 of the cam disk l7 engaging the roller 24 immediately and quickly returns the feeding plate 7- forwardly to its starting position ready to repeat the operation of feeding the next lower blank to the perforating dies.

Mechanism for operating the perforating pZnnger.-This mechanism comprises a rotary cam disk 27 and a lever 28, the disk 27 being secured to the main shaft -2- and provided on its periphery with a cam tooth 29, the greater portion of the periphery of the disk being concentric with its axis. oted intermediate its ends at 30 upon an upright bracket 31 of the main frame, and is provided at its rear end with a roller or stud 32 bearing upon the periphery of the disk 27, the front end of the lever being provided wit-h rounding hearing faces seated in an opening 33 in the plunger 14. Pivotally connected to the rear end of the lever -2S is a pendant arm 35 having its lower end bifurcated and embracing the shaft 2 to move transversely thereof, and its intermediate portion provided with a stud or roller 36 which enters a cam recess 37 in one side of the disk 27, said recess corresponding in shape somewhat to the periphery of the disk 27, that is, a portion of the recess -37- in radial alinement with the cam tooth 29 is extended radially toward said cam tooth to allow the roller 36 to enter said radial extension as the roller 32- rides upon the tooth 29, the rear side of the extension of the recess '87 serving to engage the roller -36 and thereby positively depress the rear end of the lever 28 to correspondingly elevate the plunger 14 as the roller 32 rides down the rear side of the cam tooth 29. It is now clear that the lever 28 and plunger 14 are operated in both directions positively by the cams of the disk 27, the positive upward movement of the plunger being necessitated by reason of the fact that the dies tend to stick in the perforations formed thereby in the metal blank, whlle the blank is held against upward movement between the feed bars 7 and 15-.

The means for feeding the perforated blanks from the dies to the forming mechanism comprises the sliding bar l5-, a

The lever 28 is pivlever 38 and a cam 39, the lever -38- being pivoted intermediate its ends at 40- and has its front end provided with an elongated slot 4lfor receiving a pin 42- on the sliding bar 15. The rear end of this lever 38 is provided with a stud -it3 which is held against a spiral face 44 by a spring 45 the latter having one end connected with lever 38 and its opposite end connected to a fixed anchorage -t6- on the main supporting frame, and constitutes the means by which the lever 38- is rocked to move the sliding bar l5 inwardly toward the dies. The cam 39 is rigidly secured to the main driving shaft 2- and its cam face -3t4 is preferably spiral shape with the high and low points at diametrically opposite sides of the axis and representing the extreme throw of the cam to move the sliding plate 15 from one extreme to the other extreme position. In some instances it may be desired to vary the degree of movement of the bar l5 and for this purpose I have provided an adjustable screw stop 47 which is movable in a threaded aperture in a boss 4-8 on the main frame and engages one side of the lever 3S to limit its action by the spring 45.

Link bending and chain fOrmin-g mechanism.This mechanism comprises a forming pin 50, a pair of gripping jaws 51- and a link turning head 52 in combination with suitable operating mechanism hereinafter described. The forming pin 50 is preferably cylindrical at its upper end with the exception that it is provided with a lengthwise slot 54 for receiving the ends of the transversely formed link, while the next succeeding link is be-- ing formed around the pin in order to preserve the oircular form of the eye of the link. This forming pin or rod is movable vertically in a tubular guide 50 to withdraw its upper end from each link after the latter has been bent around said pin and allow the jaws to draw the formed link backwardly in position to receive the next succeeding link.

The means for reciprocating the forming pin 50 preferably consists of a pair of similar levers 55 and a pair of like cams 56 which latter are mounted upon and rotated with the main driving shaft -2- as best seen in Fig. 4;. The levers are secured at their rear ends to a rock shaft -57- and are provided with upwardly projecting arms 55- having their upper ends spring-pressed against the peripheries of the cams 56 by tension springs 58-. As previously stated, the cams are identical and are arranged in the same relative position upon the shaft -2 substantially half of each cam being of greater radius than that of the opposite half, although the greater portion of the periphery of each half is concentric with the axis of revolution so that the forming pin is held in its extreme upperposition during substantially half a revolution of the main shaft and is either in its full or partly depressed position during the remaining half revolution of said shaft. The jaws 51 are mounted upon the front ends of opposite similar levers -60- which are fulcrumed intermediate their ends 6l upon a sliding support -62, the latter being provided at its rear end with an inclined face -63 upon which rests a vertically adjustable contact member -64:- adapted to be engaged by the periphery of a cam 65 on the main driving shaft -2. The contact member 64 is adapted to be adjusted vertically along the incline 63*- by a cap screw 66- which is tapped into the rear-end of the sliding bar -62, the object of the adjustable contact member 64:' being to adjust the jaws -51- relatively to the forming pin so that they will co-act with said pin to properly bend the ends of the link around the same. It is now apparent that the levers 60- and jaws -5lthereon are rockable togvard and from each g 'other, and are also'movable bodily back and forth toward and from the forming pin -50, being guided in their reciprocatory movement upon a suitable guide block 67- on the main supporting frame -1, as best seen in Figs. 4, S and 9.

The radii of diametrically opposite portions of the cam disk -65- are unequal but the periphery of each half is substantially concentric with the axis, thereby holding the jaws -51- in each extreme position during substantially half a revolution of the main driving shaft. The rear ends of the levers -60 extend a short distance beyond the inner periphery of the cam --65 and engage opposite faces of said cam. A portion 70 of the cam 65 is somewhat thinner than the remaining portions forming opposite pairs of beveled shoulders -71, the thinner portion 70 being substantially equal to one quarter of the cam and is located at the advance end of the portion of the cam of greatest radius. The rear ends of the levers 60 are connected by a spring 73 which operates to hold the rear extremities of the ends of the levers with opposite faces of the cam -65 and tends to open the jaws -51, especially when the rear ends of the levers are in contact with the thinner portion 70. It is now apparent that the jaws -5l will begin to open at about the same time that they begin to move forwardly, the object of this being to permit the jaws to engage the ends of the link and foldthem around the forming pin; Just prior to this latter laction, however, the perforated link which has been previously fed' into engagement with the slotted end of the head 52 is :turned a quarter turn in the direction indicated by arrow Y, Fig. 1, thereby pre 'senting the link flatwise to the forming pin so that when the jaws 51 are advanced or moved forwardly in their open positions, they will fold the ends of the link around said forming pin and while in this position the rear shoulders 71 will act upon the rear ends of the levers to spread them apart and thereby force the front ends of the jaws firmly against the opposite sides of the links and press the forwardy project ing ends of said link firmly together with their apertures in alinement.

It will be observed that by turning the head 52 in' the direction indicated by arrow Y the bottom portions of the links in which the burs arefor'med by the perforating dies will be broughtagainst the forming pin and when folded around said forming pin will bring the burs at the inside of the folded ends of the link, thereby leaving the outer surfaces of the link smooth and slightly rounded at the corners to prevent undue abrasion of the links one upon the other by the burs. As soon as the link is' bent around the forming pin in the manner just described, said forming pin is withdrawn downwardly from the link and the jaws are then movedrearwardly carrying the formed link with them into alinement with the feeding bar 15 which-latter is now operated to feed the next perforated link through the alinedapertures in the previously formed link and into engagement with the slotted endofthe head 52-, as best seen in Fig. 6. As soon as the advanceend is properly seated in the head 52 the latter is turned a quarter turn, as previously stated, and the forming pin. -50 is elevated to its operative position, allowing the forward ends of the previously formed link to enter the slot 54 in said forming pin, whereupon the jaws 51 are advanced in the manner described tobend' the succeeding link around the forming pin, these operations being repeated as each link is fed' to the perforating dies and perforated. The head 52 is mounted on the inner end of a rock shaft 76, which in turn is secured within a rocking sleeve 77, the latter being journaled and movable endwise in suitable bearings 78, as best seen in F ig.-7 and is provided with annular shoulders or collars 79- spaced apart for receiving between them a stud or roller 80-, this roller being mounted on one end of a hori- Zo-ntal lever -8l which is fulcrumed intermediate its ends --82 and is provided at its rear end with a stud 83 bearing against a cam face 84- on the main shaft -'2-'. The stud 83- is' he'ld againstthe cam face s4.- by a spring 86 connect-Y ing the rear end of the lever with a suitable] anchorage 87, asbest seen in Fig. 1.

The means for rocking the sleeve 77l and head -52 carried thereby consist of al cam 88 and lever 89, the latter being connected at its front end to a crank arm 90- on the outer end of the sleeve 77- while the rear end of said lever is bifurcated and saddled upon the shaft 2- and is provided with a stud or roller 91 riding against the face of the cam 88-. The throw of the cam 88 is adjusted to move the crank arm 90 and parts connected thereto through substantially quarter of a revolution to bring the perforated link about to be formed from a flat, horizontal position to an edgewise vertical position. The stud or roller 91 is held against the periphery of the cam 88- by a spring 92' which connects the rear end of the lever 91 to a fixed anchorage 93, as best seen in Fig. 3. The hub of the crank arm 90 is feathered upon the shaft and is provided with an annular groove 95 for receiving a forked portion of an arm --96, the latter being secured to the frame -1 and serves to hold the crank arm against axial movement as the sleeve 77 is moved back and forth therethrough and at the same time allow said crank arm to be rocked on its axis for similarly rocking the sleeve 77 and head 52.

The operation of my invention briefly described is as follows: Incutting the blanks burs will unavoidably be formed upon one side, and these blanks are delivered by suitable mechanism, not shown, into the magazine 1 with the burs at the bottom. The lowermost blanks in the magazine 5- gravitate from the bottom of the magazine 5 onto the underlying plate or table -6- and are successively forced by the feed plate -7-- between the dies 9- and -10-, the feeding bar -15- being previously advanced across the back edge of the link. These feeding plates 6 and -15 remain in this position to hold the link in proper registration with the dies during the descent of the plunger 14 by which the opposite ends of the blank are perforated, said plunger being quickly depressed and withdrawn, and as soon as the die 10- is drawn out of the apertures formed thereby, the feed bar 15 is with drawn from behind the perforated link, whereupon the feed plate 7- is moved still further rearwardly to feed the perforated link into the path of the movement of the feed bar 15. As soon as this latter operation takes place, the bar -15 is actuated to feed the perforated link behind the forming pin and into interlocking engagement with the head 52, during which operation the feed plate -7 is returned to its starting position to feed the next blank to the perforating dies. As soon as the perforated blank is fed to the interlocking engagement with the head -52, the latter, together with the link, is turned a quarter of a revolution to bring the under side of the link having the burs thereon into upright position facing the forming pin which is now in its extreme upward position. As soon as the link is turned upon its edge, the head 52- is withdrawn from interlocking engagement therewith and the jaws -5lare immediately advanced to press the ends of the link around the forming pin 50 and are then closed upon the forming pin and link to impress the perforated ends of the link close together,.and after a brief interval of time during which the form of the link sets to maintain its shape, the forming pin is withdrawn downwardly and the gripping jaws with the formed link therein are then withdrawn rearwardly a sutficient distance to bring its apertures into alinement with the next advancing perforated link, as fed laterally by the feeding bar 15-, said successive link being, therefore, passed through the apertures of the previously formed link and is interlocked with the turning head -52- in the manner previously described, whereupon the forming pin is again elevated, causing the front ends of the previously formed link to enter the slot in the rear face of said forming pin and allowing the perforated blank which has just been passed through the previously formed link, to be turned edgewise vertically and pressed or bent by the forward movement of the jaws 51- around the forming pin in the same manner as previously described. These several operations are continued in the order specified, being controlled by their respective cams and connections to form the chain.

In cutting the blanks and perforating them in the manner described the burs will be formed at the corners on one side of the perforating blank, while the opposite corners will be more or less rounding, so that when the link is folded around the forming pin with the burs at the inside, the outer corners will be smooth and slightly rounding thereby avoiding undue abrasion or cutting of the links one upon the other by the burs and rendering the swivel action of the links easier one upon the other.

What I claim is 1. In a link perforating and chain forming machine, a magazine in which the. imperforate metal blanks are stacked one upon the other, mechanism for perforating the blanks, means for feeding the blanks one by one from said magazine to the perforating mechanism, a link forming mechanism comprising a reciprocatory forming pin and reciprocatory jaws for engaging and bending the ends ofthelink around the forming pin,-

and mechanisms for feeding the perforated blanks from the perforating mechanism to fromt-he magazine to the perforating mechanism, .a link forming mechanism comprising a forming pin and jaws movable toward and from the forming pin, and means for feeding the perforated blanks from the perplate engaging and moving the blank beforating mechanism between the jaws and forming pin of the forming mechanism.

8.-In a link perforating and chain forming machine, a magazine in which the imperforate blanks are stacked one upon the other, a perforating mechanism, a slideplate movable back and forth under the lower end of the magazine and feeding the lowermost blanks one by one from the magazine to the perforating mechanism, said slide-plate having an additional movement to feed the perforated blank from between the perforating dies after the same has been perforated, a link bending and forming mechanism comprising a forming pinand reciprocatory jaws movable toward and from the forming pin, and an additional slide-plate for feeding the perforated blanks between the forming pin and jaws.

4:. In a link perforating and chain forming machine, a perforating mechanism comprising male and female dies, one of said dies being movable toward and from the other, a slide bar movable back and forth at one side of the perforating member of the dies, a slide-plate movable at right angles to and in the same plane as the sliding bar, means for feeding the blanks one by one into the path of movement of the plate, said tween the perforating dies and against the sliding barto hold said blank in position during the perforating operation, the plate having an additional movement for feeding the perforated blank into the path of movement of the bar after the latter has been withdrawn from its holding position, a link bending and chain forming mechanism at one side of the dies and comprising a forming pin and jaws movable toward and from the forming pin, the bar operating to feed the perforated link between the forming pin and jaws and mechanism for reciprocating said bar and plate. 7

5. In a link perforating and chain forming machine, a link perforating mechanism comprising male and female dies, one of which is movable toward and from the other,

.a sliding member movable toward and from the dies to feed the blanks one by one between said dies, a chute for guiding the imperforate link blanks one by one into the path of movement of said sliding member, a second sliding member movable back and forth. across the plane of movement of the first sliding member, and a link bending and chain forming mechanism comprising a forming pin and jaws movable toward and from the forming pin, said second sliding member engaging and feeding the perforated blank in the path thereof between the forming pin and'jaws and mechanisms for operating the sliding members.

6. In a link perforating and chain forming machine, a perforating mechanism comprising male and female dies, one of which is movable toward and from the other to perforate the link blank, a sliding member movable toward and from and in a plane between the adjacent faces of said dies when the latter are separated, a second sliding member movable in said plane across the line of movement of the first named sliding member, said sliding members constituting means to engage and hold the link blank during the perforating operation, the first named sliding-plate having an additional movement after such perforating operation to feed the perforated blank into the path of the movement of the second sliding member when the latter is withdrawn from its holding position, means comprising a forming pin and jaws movable toward and away from said pin for bending the perforated blank around the forming pin, and mechani- .cal means for arranging the link with its bur side adjacent to the forming pin before bending, said second sliding member operating to feed the perforated blank in the path thereof through the perforations of the previously formed link while held in the aws.

7. In a link perforating and chain forming machine, vertically disposed dies, means for feeding the link blanks one by one in a horizontal position between the dies, means for reciprocating one of the dies to perforate the blank, "a vertically disposed forming pin at one side of the dies, mechanism for feeding the perforated blank from between the dies to the forming pin and addi- 1 tional mechanism for turning such blank from a horizontal to a vertical position with its bur side toward the pin, and additional mechanism for bending the perforated blank around the forming pin.

8. In a link perforating and chain forming machine, vertically disposed dies, means for feeding the link blanks one by one in a horizontal position between the dies, means for reciprocating one of the dies to perforate the blank, a vertically disposed forming pin at one side of the dies, mechanism I for feeding the perforated blank from be- 0 tween the dies to the forming pin and addiposition for receiving the next succeeding 10 tional mechanism for turning such blank link. from a horizontal to a vertical position with In witness whereof I have hereunto set its bur side toward the pin, additional my hand.

mechanism for bending the perforated blank FERRAND F ELLIS around the forming pin, additional means for withdrawing the forming pin from the Witnesses:

S. S. ELDRIDGE,

bent link, and further means for shifting S. F. SMITH.

the bent link to bring its perforations into Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.