US760490A

US760490A - Wire-bending machine.

Info

Publication number: US760490A
Application number: US13332202A
Authority: US
Inventors: James A Sanford
Original assignee: JACKSON CUSHION SPRING Co
Current assignee: JACKSON CUSHION SPRING Co
Priority date: 1902-12-01
Filing date: 1902-12-01
Publication date: 1904-05-24
Anticipated expiration: 1921-05-24

Description

No. 760,490. PATENTED MAY 24, 1904. J. A. SANFORD.

WIRE BENDING MACHINE.

APPLIOATION FILED DBO. 1, 1902. K0 MODEL. 3,8HBET8-BHEBT 1.

WITNESSES: f5 INVENTOR: g g @urww I a MAL) i all QUAMLMS. W L11.

PATENTED MAY 24, 1904.

J. A. SANFORD. WIRE BENDING MACHINE.

APPLICATION mam use. 1, 1002.

3 SHEETS-SHEBT 2 N0 MODEL.

iifmovm @z M W m V wwi.

PATENTED MAY 24, 1904.

J. A. SANFORD. WIRE BENDING MACHINE.

APPLIUATION FILED DBO. 1, 1902.

3 SHEETS-SHEET 3.

N0 MODEL.

&

- INVENTOR: %%M/ W .2

WITNESSES:

UNITED STATES Patented Ma 24, 1904.

PATENT OFFICE.

JAMES A. SANFORD, OF JACKSON, MICHIGAN, ASSIGNOR TO JACKSON CUSHION SPRING COMPANY, OF J AOKSON, MICHIGAN, A OORPORN TION OF MICHIGAN.

WIRE-BENDING MACHINE.

sPEcIFmA'rIoN forming part of Letters Patent No. 760,490, dated May 24, 1904.

Application filed December 1,1902. Serial No. 133,322- (No model.)

To all whom it may concern:

Be it known that LJAMns A. SANFORD, a citizen of the United States, residing at the city of Jackson, in the county of Jackson and State of Michigan, have invented a certain new and useful VVire-Bending Machine, of which the following is a specification.

My improvements relate to wire-bending machines where bends and loops are made in wire by means of dies suitably disposed; and the objects of my said improvements are to provide one that is automatic in its action, one in which a suitable stop-motion stops the feed of the wire at a predetermined point, one which makes contiguous loops with means for side movement of the wire to allow for the take-up of the wire in forming the loops, and means for discharging the completed wires into a suitable receptacle, other objects and ad vantages being apparent from the following description.

In the drawings forming a part of this specification, and in which like numerals of reference refer to similar parts, Figure 1 is a front elevation showing the parts in position for forming a wire. Fig. 2 is a sectional View on the line a b of Fig. 1, showing a section of the left-hand die in Fig. 1 with the stop mechanism. Fig. 3 is an end elevation with parts broken away to show the mechanism and fingers for feeding the cut wires and discharging the formed wires. Fig. 1 is a plan view of one of the middle dies for forming the loop. Fig. 5 is a sectional view of the same dies on the line 0 (Z of Fig. 1. Fig. 6 is a view of one of the wires as bent by said machine. Fig. 7 is a detail view of the lever 4A. Fig. 8 is a plan view of the sliding linger for feeding the cut wires forward.

In the drawings forming part of this speciiication, 1 indicates the base of the machine, and it is provided with the

uprights

2, 3, and 4:. Said base 1 is provided with suitable means for supporting and fastening the parts hereinafter mentioned as mounted thereon, and

theuprights

2, 3, and 1 are provided with suitable bearings and journals to receive and support the shafts hereinafter specified as supported therein. Connecting the said uprights is a cross-bar 14, which has its front surface formed into a dovetailed slideway to receive the die-heads hereinafter mentioned, the said die-heads being adjustably mounted upon said dovetailed slide thereon.

In the machine shown in the drawings here in the power is applied to the machine by means of a belt upon the pulley 5. (Shown at the right hand in Fig. 1.) This pulley is mounted upon the shaft 6, which it turns in its bearings in uprights 3 and A. Attached to the said shaft 6 is a gear-wheel 7 This gear-wheel T is in mesh with a larger gearwhecl 8, which it turns when set in motion. Said gear-wheel 8 is mounted upon the righthand end of shaft 9, (shown in Fig. 1,) which said shaft is also mounted in bearings in the said uprights 2, 3, and 4E. Mounted at intervals upon said shaft 9 I have placed the eccentrics 20 20 20 20, from which depend the die-heads 26 26 26 26, and when the shaft 9 is revolved the eccentrics 20 impart an upward-and-downward stroke to said die-heads. The eccentrics, as shown, consist of the eccentric parts proper, 20 and 20, which are bolted together, and the strap 21, mounted between the flanges of said

parts

20 and 20". A screw-rod 22 connects the strap 21 with rod 23, the said screw-rod having a right-hand thread at one end and a left-hand thread at the other end for adjusting the stroke of the die-head to which it is attached. A pin 23 attaches the rod to the die-head 26, forming a suitable joint therewith to allow for the lateral motion imparted to said rod by the said eccentric in its revolutions. The die-heads 26 are dovetailed in cross-section and slide up and down in the

dovetailed slideways

15, 16, 17, and 18. These slideways are in turn adjustably mounted upon the slide formed on the front surface of the cross-bar 14 and are adjustable thereon with reference to one another, being held in place, when once adjusted, by means of the screws 19.

2 1 and 25 are lock-nuts for preventing the screw-rod 22 from turning when once properly adjusted.

In suitable openings in the lower extremities ofthe die-heads are mounted the

formingdies

1O, 11, 12, and 13, respectively, the said dies being held in place in said die-heads by means of the screws 27 27. The end dies shown, 10 and 13, are of a shape to form the end bendsin the wire, (shown in Fig. 6,) and to accomplish this the said dies are mounted rigidly in the said die-heads. The lower dies corresponding to said dies 10 and 13 are the end dies mounted upon said base 1. These dies consist of the main portions 28 and 31, which are slightly dovetailed in cross-section and are held rigidly attached to the base between the shoulder l thereon and the plates 28 and 31", bolted to said base 1. The sliding parts of said dies, 28 and 31", are dovetail in cross-section and are mounted in a dovetailed slideway in the portions 28 and 31, respectively. The springs 28 and 31, respectively,

are adapted to return the said sliding portions of said dies to their starting initial position after each bend is formed thereby. The portions 67 and 68 are stops to limit the forward movement of the wire when it is being fed to said dies, stopping the said wire in proper position under said dies and being placed near the ends. After the wire has been bent into the form shown in Fig. 6 it is shortened suificiently to pass between said stops as it is being discharged from said dies and'from said machine. To form the shape of bends shown in the wire, Fig. 6, (indicated by the

numerals

69 and 72,) the end portions of said dies which form the right-angled bend, the same being 23 and 31, are formed with their inner surface substantially perpendicular to the base in order to make a right-angled bend at the end of said wire. The other portions of said dies, 28 and 31 are constructed with their inner and forming surfaces slanting at the same angle that the inner portion of the said bends 69 and 72 slant and at such a distance from the perpendicular portion 28" and 31 that when the upper dies 10 and 13 descend into engagement with the wire the beveled portions 28 and 31 are gradually forced away from said dies 10 and 13, permitting the wire to draw from the end to allow for the takeup of said bend and forming the said bends in said wire between said upper dies 10 and 13 and their respective lower dies 28 and 28 and 31 and 31, respectively, as shown in Fig. 6. The middle dies (shown in the drawings) 11 and 12. are adapted, in conjunction with their respective lower dies, to form the

middle loops

70 and 71 in said wire. (Shown in Fig. 6.) To accomplish this purpose, the main portions of said dies 11 and 12 are rigidly attached to said die-heads. These portions are provided with a dovetail groove each, and in this dovetailed groove is mounted the sliding dies 11 and 11 and 12 and 12", respectively, each set of said sliding dies having a rod 11 and a coil-spring 11 therebe tween to separate said dies whenever they are out of engagement with the corresponding lower dies hereinafter mentioned. The outer edges of said sliding dies are made with the slant, as shown, to engage with the slanting inner surfaces of the lower dies 29 and 30 to force said sliding dies 11 and 11 and 12 and 12 together and squeeze the wire about the central member of said lower dies 29 and 30 to form the wire into the shape of loop shown at 70 and 71 in Fig. 6, with the lower portion or mouth of said loops of a less diameter or width than the upper or wider portion thereof. By this construction it will be seen that as the upper dies descend upon the wire they strike the wire at a sufficient distance apart to engage a proper length of said wire to form the said loop. As they gradually descend and bend said wire they are also forced together upon either side of the

lower portions

29 and 30, pressing the wire into the shape shown, and as they rise after said stroke the springs 11 between each set of the said dies serve to separate them until they clear the upper and wider portion of said loops formed. It will further be seen that in forming said middle loops there must be some means after one loop has been formed about the lower member-say 29to permit the wire to move toward the other die say 30as the loop there is being formed to allow forthe take-up of the wire in the forming of said loop. To accomplish this purpose, the said lower member 29 is formed in the shape of a slide and is mounted in a slideway in the portion 29 of said die, permitting it to move laterally toward the other said die, 30, whenever it is required in the forming of the loop about the said die 3O and is also provided with a spring to return it to its initial position after being released from the strain which draws it toward said other die. In the same manner the sliding portions of the lower end dies, being 28 and 31, permit the wire to slide toward the middle loops and carry said end dies 28 and 31 laterally toward said middle dies whenever it is required that they should slide toward the middle to permit the take-up of the wire. required to form said middle or any other middle loops in said wire. In this same manner each of the lower dies excepting the last one to be formed is thus adapted to slide toward any die which is to be made thereafter to permit the wire to slide in the direction of such die and permit the die to freely take up the amount of wire necessary to make such loop without exerting any strain or tension which would tend to straighten any of the bends or loops theretofore made in said wire. The die for forming the last loop could also be made with the portion adapted to slide; but it is unnecessary, as the wire is discharged after said loop is made and there is no necessity for its being adapted to slide in any manner, and, in fact, I prefer to make it rigid in preference to constructing it with a view of permitting said sliding lateral motion.

My machine as shown in the drawings is adapted to feed a straightened wire to the ma, chine, cut it off the desired length to form one article, as shown in Fig. 6, feed this cut wire to thedies, form it in the shape shown, and discharge it from the machine without in any manner requiring the aid of .manuallabor.

To accomplish this purpose, a suitable wire is mounted upon a reel, passed through a suitable straightener, and then passed between the rolls 32 and 33 shown. These rolls have grooves about their periphery which retain the wire between them in the proper position to be fed forward as said rolls are revolved. Motion is imparted to said rolls through the bevel-gear 34, attached to the left-hand end of the shaft 9 in Fig. 1, the bevel-gear 35', mounted upon the shaft 36 in mesh with it, the sprocket-wheel 37, mounted upon the rear end of said shaft 36, the chain extending from said sprocket-wheel 37 to a sprocketwheel (not shown) on the rear end of the shaft 39, upon the forward end of which said shaft 39 the roll 33 is mounted. By this construction whenever the power is applied to said machine, as hereinbefore mentioned, the roll 33 is caused to revolve and unless raised, as hereinafter mentioned, presses downward, by means of the coiled spring 43, against the wire 73 and the lower roll 32 and as it turns moves the said wire 73 forward toward said machine. Whenever said wire has been fed forward a sufficient distance to make one length of wire, it is desirable to stop the forward feed until said wire has been cut and fed to the dies,'and to accomplish this purpose I employ the stop motion hereinafter described, by means of which at the desired point in the forward feed of said wire the upper roll 33 is raised free and clear from the said wire 73 and the lower roll 32, and thus turns freely in the air without feeding said wire forward. To accomplish this purpose, the upper roll is mounted upon the shaft 39, and above the said shaft and fitted between the uprights is a sliding block 4E0, which in turn is held down by the spring 43. Below said shaft 39 and also fitted to slide between said uprights 41 and 42 is a second block 40 of a similar shape to 40, but with the square side downward. Below this again and above the shaft upon which the roll 32 is mounted is a third block 40" with the squared side uppermost. Between the said second and third blocks I have placed a bent lever, whichlis rhomboidal in cross-section at 44*,where it is placed between said blocks and is bent at right angles and extends toward the right, as 414:. Ordinarily the said blocks between the shafts supporting said rolls press the said lever down, with the shorter axis of the said rhomboidal lever separating them; but when: ever by any cause the right-hand end of said lever 443s depressed the said lever is turned until the longer axis of said rhomboidal-shaped lever separates the said blocks and raises the said upper roll a sufficient distance to throw it out of contact with the said wire 73 and with the under roll, thus stopping the feed of said wire. In order ,to depress thesaid lever 44 and stop the feed of said wire at the proper time, I havearranged the shaft 46 mounted in hearings in the uprights 2 and 3. To this shaft I have attached the arm 47, having the set-screw 48 in position directly. above the right-hand end of the lever 44. A second arm 49 is also attached to said shaft &6, which is also attached to the die-head 26 nearest said lever by means of the pivot shown, and by this means whenever the said die-head 26 descends it revolves the shaft 46 through a portionof a revolution and back again, and with it the arm 47. As the arm 47 is rotated the set-screw contacts with the end of the lever 4a, and thus depresses it, stopping the feed of the wire as desired. It will be apparent that by the proper adjustment of the said arms upon said shaft and of the said setserew the said lever may be depressed at any portion of the descent of said die-head 26 and the said feed of the wire may be stopped at any point in the descent of said die-head desired.

In the style of article shown in Fig. 6 the ends of the wire are cut at an acute angle to produce a sharpened point for driving into -wood.

To accomplish this bevel cut, 1 employ a shear having the blade at the proper angle to the axis of the wire and with a longitudinal hole therein of approximately the diameter of the wire, as 51. The lower edge of this opening in the face of the shearblade 50 forms the lower or cutting blade of said lower shear. The upper member or blade of said shear, 50, is disposed with its face at the same angle to the axis of the wire 7 3 as the lowerblade and is attached to the rear side of the die-head 26 and in such position that it will shear the wire off as it passes down past the lower shear-blade 50.

scends in forming the end loop in said wire (shown in Fig. 6) 1t also cuts off the next wire at the proper angle for the next operation of said machine. As the wire 73 is fed into said machine by said rolls 32 and it passes through the opcnmg 51 in the lower shearblade 50 and then through the guides 60, 61,

.62, and 63. The guides 60 and 63 are permanently attached to the base and consist of a lower member in contact with said base and of an upper spring member, forming, in conjunction with the lower member, an opening through which said wire may be forced in an endwise direction, and a neck or opening leading out therefrom of a less diameter than said central opening and than said wire. By this construction the upper spring member yields as the wire is being pushed out of said neck By this con-' struction; whenever the said dle-head 26 deor opening, as hereinafter described, and springs back in position again after the wire is released therefrom and prevents the said wire from again entering therein and also forms a guide to direct the next wire to its proper position in said machine. The

guides

61 and 62 each consist of the

lower portion

61 and 62, which is substantially dovetailed in cross-section and adapted to slide forward and backward in the

slideways

61 and 62", which said slideways 62 and 61 are attached to'the lower middle dies 29 and 30, respectively, and are movable sidewise whenever said dies are moved sidewise to a new position. At the ends 61 and 62 the said parts are concaved, as shown, to better engage the wire when it is being pushed forward by said members in their forward movement. The upper portions of said guides, 61 and 62 are of spring material and, in conjunction with said lower portions, form the guide for said wire in directing its forward movement. They form an opening and a neck extending from said opening of a less diameter than said wire and through which said wire may be pressed in the backward movement of said members. At the rear portion of saidslides, 61 and 62, they are divided into side members forming'an opening between them and being connected by the rods 6l and 62. These same rods pass through the extremities of the jointed

arms

52 and 53, the upper portions of which, 5 1 and 55, are attached to the shaft 56, which is in turn mounted in bearings in the

uprights

2, 3, and 1. By this construction whenever the shaft 56 is rotated by any means the

arms

52 and 53 push the fingers or guides 61 and 62 forward to feed the cut wire to the dies and then withdraw the said fingers or guides upon the backward rotation of said shaft. To rotate said shaft for said purpose, an arm 57 is attached thereto at its right-hand end in proximity to the gear-wheel 8. On the adjoining side of said gear-wheel 8 is a pin 58 in the path of said arm, and the spring 59 is provided to return said shaft to its initial position after every partial rotation by the contact of said pin 58 with said arm 57. The part 63 is a stop against which the wire 7 3 is fed by the guides, and the position of this stop determines the length of the said wire as cut. The part 65 is a fiat strip of metal pressed downward by the spring 66 and is attached to the right-hand die-head 26 and is designed to press down upon the cut wire after it has been fed forward to the dies and hold it in position under said dies and also to hold it down firmly in front of the end portions of the dies, 29 and 30, and thus assist in holding the wire while it is being released or stripped out of the

guides

61 and 62.

In the machine shown it will be seen that the throws of the eccentrics are arranged to occur at differentportions of the revolution of said shaft 9, and therefore the dies descend class of wires.

at different portions of said revolution. In the machine shown I have employed four dies, the end ones forming the end bends and the middle ones forming the loops of the wire shown in Fig. 6. I have arranged the eccentrics so that the dies descend in the following order: 11, 12, 13, and 10, which seems to me to be best suited to the forming of this It will be apparent that the positions of the said loops may be varied by changing the positions of the said die-heads upon the cross-bar 14 and that the number of dies employed may be increased or diminished, as desired, to form the shape of wire desired and that the shape of the said dies may be changed or altered to produce different and various styles and shapes of bends and loops as desired without in any manner departing from the spirit of my invention.

The operation of the machine shown in the drawings is as follows: A coil of wire having been placed upon some suitable reel (not shown) and led through some suitable straightening means (not shown) is introduced between the rolls 32 and 33. The machine is then started and the wire is guided byhand through the opening 51 inthe lower blade of the shear the first time. By the mechanism above described the wire is then fed automatically through the guides against the stop 63*. As the left-hand die-head descends the wire is cut off, and when this ascends again the feeding guides are moved forward by means of the pin 58 contacting with the arm 57 until the wire passes over the slanting end portions of the dies 29 and '30. The springpressed part 65 descends upon said wire, holding it in position while the fingers are being returned to their initial position and are being stripped from the guides in said fingers. The dies then descend in the order above mentioned, forming the

loops

70, 71, 72, and 69.

As the die 10 descends to a predetermined point it stops the feeding mechanism, as above described, and then cuts off the next wire, as above specified. As the die 10 again ascends it releases the feeding mechanism and another wire is fed forward to be in turn out off. As the second wire is being fed forward to the dies the ends of the feedingguides contact with the wire which has already been formed in said dies and it is pushed forward and out of the way of the dies to make way for the second and each succeeding wire.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is the following, viz:

1. In a machine of the class described, a feeding mechanism consisting of rolls; means for stopping the feed of said rolls; cutting mechanism consisting of a perforated blade and a reciprocating blade, the cutting edges of said blades disposed at an angle to the feed of said wire; means for advancing the cut IIO wire to the forming-dies; dies for forming said out wire, and means for discharging said formed wire from said machine.

2. In a machine forcutting and shaping wire, a fixed blade having an opening therein through which said wire is fed by feeding mechanism; a reciprocating blade attached to one of the die-heads; feeding mechanism for advancing said out wire to the forming-dies and also for discharging the formed wires from said machine, and forming-dies, a portion of them being rigidly mounted in the die-heads, and a portion being slidably mounted in the die-heads, and dies mounted upon the bed, a

portion being rigidly attached to said bed, and a portion being slidably attached to said bed, with means for sliding said slidably-mountcd dies in forming the said wire.

3. In a wire-bending machine, means for feeding wire thereto,means for simultaneously stopping the feed, cutting the wire into lengths and forming a bend therein, and a second means for feeding the cut lengths of wire independently of the first-mentioned feeding means.

4. A wire-bending machine, consisting of a fixed bed, uprights having journals therein, and connected by a cross-bar; a shaft mounted to rotate in said journals; eccentrics mounted at intervals upon said shaft; die-carrying heads attached to said eccentrics; and dies mounted in said die-heads, apart being rigidly mounted therein, and a part being slidably mounted therein; lower forming-dies mounted upon the bed with sliding members mounted therein; and means for moving said sliding members when forming said wire.

5. In a device of the class described, the combination with a feeding mechanism, of a diagonal cutting mechanism, dies mounted upon a bed; a portion of said dies adapted to slide in one direction under pressure; corresponding dies mounted in die-heads adapted to reciprocate, and a portion of said second set of dies adapted to slide in one direction under pressure, and means for sliding saidslidablymounted dies in forming said bends and loops in said wires.

6. In a machine of the class described, a feeding mechanism consisting of rolls one of said rolls being spring-pressed; a bent lever disposed between said rolls, and adapted to separate said rolls when the extremity is depressed; means for depressing said lever; means for cutting said wire diagonally; means for feeding the cut lengths to dies dies mounted in die-heads, and said die-heads attached to eccentrics which reciprocate said die-heads on the revolution of the shaft upon which they are mounted, and dies mounted upon the bed, a portion of which are adapted to slide sidewise, to permit the wire to move toward the middle loops, and permit of the wire to move in that direction when the wire is being taken up in the making of said middle loops.

7. In a wire-bending machine, means for feeding wire thereto, means for stopping the feed, means for cutting the wire into lengths, and means for forming bends at the ends of said lengths and loops intermediate the ends thereof.

8. In a wire-bending machine, a bed, forming-dies mounted upon the bed, reciprocating forming-dies mounted above the bed for cooperation with the first-mentioned formingdies, means for feeding the formingdies, means for simultaneously stopping and cutting the wire into lengths and at an acute angle to its length, and means operating both sets of forming-dies to form bends at the ends of the cut lengths and loops intermediate the ends thereof.

9. In amachine of the class described, a bed, standards mounted upon the bed, a shaft journaled in said standards, forming-dies mounted uponthe bed, forming-dies mounted upon said shaft for cooperation with the first-mentioned dies, and a connection between said standards, the second-mentioned forming-dies being laterally movable upon said connection.

10. In a wire-bending machine, means for feeding wire through the machine, means for guiding the wire, and means for forming poin ted bends at the ends of the wire and aloop intermediate the ends thereof.

11. In a wire-bending machine, means for feeding wire through the machine, movablymounted means upon the machine for guiding the wire, means for cutting the Wire into lengths, and means having movable elements for forming a loop intermediate the ends of the cut lengths.

12. In a wire-bending machine, means for feeding wire through the machine, laterallymovable means mounted upon the machine for guiding the wire thcrethrough, means for cutting the wire into lengths at an acute angle to its length, and means for forming bends at the ends of the cut length and loops intermediate the ends thereof.

13. In a wire-bending machine, a base, forming-dies mounted upon the base, reciprocating forming-dies mounted above the base for cooperation with the first-mentioned dies, parts of one set of cooperating dies having laterally-ifiovable parts, and means for feeding wire to the dies.

14. In a wire-bending machine, a bed, standards mounted upon the bed, a shaft journaled in the standards, forming-dies mounted upon the bed", reciprocating die-heads suspended from the shaft, forming-dies carried by the dieheads, the upperfom-ningwlies cooperating with the lower forming-dids, each set of forming-dies having diesprovided with laterallymovable elements, and means for adjusting the stroke of the die-heads- 15. In a wire-bendingmachine, abed, standards mounted upon the bed, a shaft journaled in the standards, forming-dies mounted upon the base, reciprocating die-heads suspended from said shaft, forming-dies carried by the die-heads, the second-mentioned dies cooperating with the first-mentioned dies, each set of forming-dies having a die provided With alaterally-movable element, means for guiding the stroke of the reciprocating die heads, and means for permitting a lateral adjustment of said die-heads.

16. In a wire-bending machine, means for feeding wire to the machine, means for stopping the feed of the wire, means for cutting the wire into lengths, means for advancingthe cut lengths of wire through the machine, means for guiding the wire through the machine, said means being under tension and having a laterally-movable element, and means for forming a bendand a loop in the cut lengths of wire.

17. In a wire-bending machine, a bed, forming-dies mounted upon the bed, reciprocating die-heads mounted above the bed, formingdies carried by the die-heads, each set of forming-dies havinga die provided With a laterallymovable element, means for feeding wire to the forming-dies, and means carried by the bed and one of the die-heads for cooperation in cutting the wire.

18. In a wire-bending machine, means for cutting the Wire into lengths, means'for advancing the cut lengths of wire, means for guiding the wire lengths, forming-dies arranged to intersect the path of the wire lengths, and means operating the forming-dies to form a loop intermediate the ends of the wire lengths and bends at the ends thereof.

19. In a wire-bending machine, means for cutting the wire into lengths, means for advancing the cut lengths of wire,movable means for guiding the Wire lengths, forming-dies arranged to intersect the path of the Wire lengths, and means operating the formingdies to form a loop intermediate the ends of the wire lengths and bends at the ends thereof.

20. In a wire-bending machine, means for cutting the Wire at an angle to its length,means for advancing the cut length of wire through the machine, means for guiding the wire lengths therethrough, forming-dies arranged to intersect the path of the wire length, and means operating the forming-dies to form a loop intermediate the ends of the Wire length and bends at its ends.

21. In a wire-bending machine, a bed, means for cutting the wire into lengths, formingdies mounted upon the bed, one of the said dies having a laterally-movable element, a second set of forming-dies for cooperation with the firstmentioned dies, a movable guide mounted upon the bed, and means for removing the wire from the machine after its contact with the forming-dies.

22. In a Wire-bending machine, means for feeding wire thereto, means for cutting the wire into lengths, means for advancing the cut lengths of wire through the machine, means for forming bends and loops in the cut lengths during passage through the machine, means for guiding the cut" lengths through the machine, means for moving the guiding means forward, and means for returning theguiding means to its normal position.

23. In a wire-bending machine, means for cutting the wire into lengths and at an acute angle thereto, means for feeding the cut lengths of Wire through the machine, and means for bending the wire in its course through the machine, a part of the means for cutting the Wire being carried by one of the elements for bending the wire.

24. In a'wire-bending machine, means for feeding Wire to the machine, and means for simultaneously stopping and cutting the wire into lengths and at an acute angle thereto.

25. In a wire-bending machine, a bed, form ing-dies mounted upon the bed, forming-dies mounted above the bed for cooperation with the first-mentioned dies, some of said dies having laterally-movable elements, means for feeding wire to the forming-dies, and means for cutting the wire into lengths.

26. In a Wire-bending machine, a bed, forming-dies mounted upon the bed, one of said dies having a laterally-movable element, reciprocating dies mounted above the bed for cooperationwith the first-mentioned dies, one of said second set of dies having a laterallymovable element, a laterally-movable means for guiding the wire through the machine, means for cutting the wire in lengths, means for advancing the out lengths, and means for removing the cut lengths of Wire from the machine.

27. In a wire-bending machine, a bed, forming-dies'mounted upon the bed, one of said dies having a movable element, reciprocating dies mounted above the bed for cooperation with the first-mentioned dies, one of the said second set of dies having a movable element, a movable means for guiding the wire through the machine, means for cutting the wire in lengths, means for advancing the cut lengths, and means for moving the cut lengths of wire from the machine.

28. In awire-bending machine, abed, means for feeding wire to the bed, forming-dies mounted upon the bed, one of said dies having a laterally movable element, reciprocating dies mounted above the bed for cooperation with the first-mentioned dies, one of said second set of dies having a laterally-movable element, a laterally-movable means for guiding the Wire through the machine, and means operating the forming-dies to form bends and loops in the wire.

29. Inawire-bending machine, abed, means for feeding wire to the bed, means for cutting form bends in the cut lengths of wire, a laterally-movable means for guiding the wire, and means for removing the formed wire from the bed.

30. In a wire-bending machine, means for feeding wire thereto, means for cutting the wire and simultaneously stopping the feed. to the machine, means for forming bends and loops in the cut lengths, and a second means for advancing the cut lengths through the machine.

31. In a wire-bending machine, means for feeding wire thereto, means for cutting the wire into lengths and at an acute angle there to, means for bending the cut lengths intermediate their ends, and a second means for advancing the cut lengths through the machine.

32. In a wire-bending machine, means for feeding wire through the machine, laterallymovable means mounted upon the machine for guiding the wire, and means for taking up the wire and forming loops therein.

33. In a wire-bending machine, means for feeding wire thereto, means for stopping the feed at a predetermined point, means for then cutting the wire into lengths, and means for taking up the cut lengths and forming bends therein.

3a. In a wire-bending machine, a bed, forming-dies mounted upon the bed, forming-dies mounted above the bed for cooperation with the first-mentioned dies, means for feeding wire to the forming-dies, and means for cutting the wire, one of the fm ning-dies mounted upon the bed being constructed and arranged to shift the wire toward the next adjacent die.

35. In a wire-bending machine, the combination with a bed, of a wire-feeding mechanism, a cutting mechanism,forming-dies mountcd upon the bed, and forming-dies mounted above the bed for cooperation with the first mentioned. dies to form bends in the wire, each set of forming-dies having a laterally-movable element constructed and arranged to move laterally in the formation of bends in the wire.

36. Ina wire-bending machine, abed, means for feeding wire thereto, forming-dies mounted upon the bed, one of said dies having a laterally -movable element, reciprocating dies mounted above the bed for cooperation with the first-mentioned dies, one of said second set of dies having a latcrally-movable element, two sets of means for guiding the wire through the machine, one set of the latter means being laterally movable and the other set having a movable element, and operative means for cutting the wire into lengths and forming bends in said out lengths.

37. In a wire-bending machine, the combi nation with a bed, means for feeding wire thereto, a forming-die mounted upon the bed, a reciprocating die mounted above the bed for cooperation with the first-mentioned die, means for cutting the wire into lengths, and means upon the bed for advancing the cut lengths of wire through the machine independently of the first-mentioned wire-feeding means, and means for taking up the cut lengths to form a loop therein intermediate its ends.

38. In a Wire-bending machine, the combination with a bed, of means for feeding wire thereto, spring-actuated dies mounted upon the bed, one of said dies having a laterallymovable element, spring-actuated reciprocating dies mounted above the bed for cooperation with the first-mentioned dies, one of said second set of dies having a movable element, spring-actuated means for guiding the wire through the machine, and means for cutting the wire into lengths and forming bends therein.

JAMES A. SANFORD.

Witnesses: V

CHESTER WV. BROWN, G. E. BROWN.