US420303A - limont - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

A. H. LIMONT. MACHINE FOR DRAWING WIRE.

No. 420,303. Patented M11 28, 1890.

u PETERS Fhnio-Lmwyaphur. Washinglol ac 2 Sheets-Sheet 2.

(No Model.)

A'. H. 'LIMONT. MACHINE FOR DRAWING WIRE.

Petented Jan 28 V INVENTG BY W ff/J ATTORNEY n PETERS. nowum nm Washingmn. n. c.

UNITE STATES ATEN-T OFFICE.

ALEXANDER H. LIMONT,- OF WATERBURY, CONNECTICUT, ASSIGNOR TO HOLMES, BOOTH & HAYDENS, OF NEW YORK, N. Y.

' MACHINE FOR DRAWING WIRE.

SPECIFICATION forming part of Letters Patent No. 420,303, dated January 28, 1890. Application filed September 20, 1889. Serial No. 324,488. (No model.)

To all whom it may concern:

Be 1t known that I, ALEXANDER H. LIMONT,

- of WVaterbury, in the county of. New Haven enlarged scale.

and State of Connecticut, have invented a certain new and useful Improvement in Machines for Drawing Wire, of ,which the following is a specification.

My improvement relates to the drawing of wire. Heretofore wire has been drawn successivelythrough a number of dies by means of feeding apparatus serving to impart to the wire at different points in its length different speeds to compensate for the increase in the length resulting from the reduction in size occurring in the drawing.

My present improvement consists in novel combinations of parts in a machine adapted for drawing in the manner just described.

I will describe a machine for drawing wire embodying my improvement, and then point out the novel features in claims.

In the accompanying drawings, Figure 1 is a plan or top view of a machine embodyingmy improvement. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical transverse section taken at the plane of the dotted line a; 0:, Fig. 2. Fig. at is a vertical transverse section of a die-holder and its supports on an Fig. 5 is a vertical section taken transversely of the machine and illustrating a die-holder and its supports.

Similar letters of reference designate corresponding parts in all the figures.

A A A A designate die-holders. There will be one for each drawing-die. The number of these used in the machine is immaterial and may be varied at will. I have shown four simply because they will suffice for the purpose of illustrating my invention.

B designates the drawing-dies. These drawing-dies may be of the usual or any other suitable construction. The die-holders are shown as having on one side a cavity a for the reception of the dies and a central opening 0., communicating with said cavity a and located opposite the aperture of the drawingdie. The dies are represented as secured within the cavities a by caps 1), extending across them within the cavities a and fastened in place by screws b. In the present instance the'dies B are shown as having diamonds b and opposite the aperture within the diamonds the caps have holes for the pas-- sage of the wire to be drawn. These holes in the caps are shown as funnel-shaped.

The die-holders areof circular form. Their peripheries are curved in the direction of the length of the apertures in the dies, or, in other words, from the front to the rear side, and the curve is such as to be approximately concentric with. the centers of the' dies. In other words, they are segments of balls or spheres.

The die-holders are shown as supported in brackets C, having shanks which in the present instance extend vertically. These brackets have circular openings, and from the front to the rear the surfaces of these openings are curved to correspond with the curve of the dieholders and form with them ball-and-socket joints. The die-holders may therefore oscillate to assume positions at different angles in thesebrackets on centers corresponding to the centers ofthe dies. The object of this is to make the dies adjust themselves to the best position for the direction in which the wire passes into and from them.

The brackets C are shown as made in two sections secured together by bolts to facilitate the insertion and removal of the dieholders. These brackets will preferably have cylindrical shanks 0, so that they may be rotated on the axes of the shanks to assume different angles. of such length as that'they may be adjusted so as to provide for elevating and lowering the dies bodily. I have shown the brackets C as having their shanks supported in brackets D, which in the present instance have horizontally-extending shanks. The bodies of the brackets D are of split or bifurcate construction, and the split portions or arms have combined with themfscrews (1, whereby these bodies may be made to relax their hold upon the shanks c of the brackets C, which enable the positions of the brackets C to be changed.

The brackets D will preferably be connected adjustably with their supports. In the present instance these supports consist of stands E, erected upon. the bed-framing of Moreover, the shanks are vertically in the part which receives them, I

ing devices.

the machine, and these stands are provided with sockets, in which the shanks of the brackets D extend. Set-screws e, fitted in tapped holes in the stands E and extending into the sockets, so as to be impinged against the shanks of the brackets D, serve to secure the latter in position. If, as is preferred,the shanks of the brackets D and their sockets in the stands E are made cylindrical, the shanks may be not merely adjusted longitudinally,'but may be rotated to swing the brackets D ofi to one side or the other.

With each of the drawing-dies is combined The necessity for this a feeding device. arises from the fact that the wire being elongated as it is reduced in size needs to be fed at .difierent speeds throughout difierent portions of itslength where the increase in its ,length occurs, so as to compensate for the elongation. In the present instance I have shown drums G G G G* as forming the feed- It will beseen that one of these drums is arranged beyond or at the rear side .of each drawing-die. The wire is intended ,to be fed by frictional contact with these drums. A proper frictional contact may be securedby rolling or turning thewire one or more times around each drum.

The drums G G G are shown as affixed to shafts H H H ,,which are shown as support- .edinbearings uponthe side frames of the machine. The drum Gtis shown as occupying avertical position and as geared by bevel gearwheels g with a horizontal shaft H ,whichissimilar to the shafts H H H and supported inthe same manner. Mounted on these shafts .HH H H are friction-wheels I I I 1 Each of these friction-wheels is shown as consisting of a disk secured to the correspondingshaftl l H H H J J J J designate friction-wheels employed for transmittingmotion to the fric tionwheels I I 1 1 Thesewheels .l' J 2 J 3 J .Sfiverally'consist of a pair of disks j 7 having oppositefaces inclined outwardly or toward theirperipheries and mounted upon xhemispherical hubs j j The hub 7' forms part of a sleeve 3' which is free to rotateand move[length wise of a shaft or'studj. The hubj is mounted upon the sleeve 7' and is capable of sliding in the direction of the length of the latter. supported by an arm f by being screwed at one end intothe same. It is notint-ended that the shaft or stud j shall rotate. At the end of the sleeve 7' which is most distant fromthe arm j a collar j is aiiixed to it ,by :being screwed thereon or in any other suitable manner, and around the sleeve between this collar 7' and the hubj? is a helical spring 3'. The two disks jj of each of the friction- ,wheels J J 2 J 3 J 4 embrace the corresponding 'one of the wheels 1 1 1 1 The spring li endsto move the disks j toward the diskj and, as the sleeve supporting both the disks 'canrnove lengthwise of the shaft or study, it' is clear that the spring 3' causes the disks The shaft or studj is j j to tightly grasp the corresponding wheel 1'1 I I. Owing to the construction of the hubs of hemispherical form the disks j 9' may oscillate, so that their 'opposite faces will assume diiferent angles relatively to each other. The arms 7' are supported by horizontal shafts J, mounted in bearings in the bedframing of the machine; hence these arms are free to swing upwardly and downwardly for the purpose of elevating or lowering the wheels J J J J When any one of the wheels J J 2 J 3 J 4 is elevated, it will at a different distance from its axis coact with the rim of the corresponding wheel I I I I and according as the point of engagement varies in distance from the axis so will the speed transmitted to the corresponding Wheel I I I I vary.

I have shown screws f for elevating and lowering the arms 7' These screws are shown as engaging with nuts j, secured to the bed-framing of the machine, andashaving their upper ends engagedwithsockets 3' which are intended to have a swiveling connection with the arms.

The arms 7' may be provided ,with extensions j", having theiforms of arcs, which are concentric with the shafts J, and provided with longitudinal slots which receive screws f engaging with hubs or portions j flforming part of the bed-framing. These screws will serve to securethe arms inposition.

.K K K K designate friction-wheels afhired to horizontal shafts K, journaled in brackets secured to the bed-framing of the machine. These friction wheels engage with the friction-wheels J J 2 J 3 J entering between the pairs of disks composing the latter below the shafts or studs j, bywhich said disks are supported. .When any one of thewheels J? J 3 J 4 is elevated, it willbemoved away from the axis of the corresponding wheel K K QK K and toward the axis of the corresponding Wheel 1 I I I portion of the correspondingwheel-K ,K K .K of larger diameter than before, andaportion of a smaller diameter in itself ,will engage with the corresponding wheelll 1 .1 so that the speed or mot-ion transmittedto. the corresponding wheel .11 1 I will vary, not onlybecauseit will receive motion from the disks at a different portion of their diameter, but also because the diskswillberotated at IIO Itwillthen engage with a adiiferentspeedby the corresponding wheel K K K 10. wheels K K result.

The shafts K are provided ,with bevel gear-wheels ,k, which en gagefwithbevel gear- ;wheels Z, affixed toa shaft L, here shown as extending lengthwise offthe machine, and

The lowering of any oneoflthe K K will produce. the opposite provided with a pulley L, whereby vit may be, rotated to effect the rotation of the shafts K, and through them variably the feeding devices or. drums G G2 G G Owing to the provision for-variably driving the feeding devices or drums. G Gr G G ,'the

wire maybe moved forward at different speeds at different portions of its length, and the variation of its speed at different portions of its length may be made commensurate to its elongation occurring at different points.

I may employ any suitable devices for lubricating the wire by means of water or oil or otherwise at different points inits progress. I have not illustrated such devices, because I lay no claim to them.

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

1. In a machine for drawing wire, the combination, with a number of drawing-dies, feeding devices for feeding the wire at points beyond the several dies, shafts operating the feeding devices, and a driving-shaft for imparting motion to the shafts operating the feeding devices, of sets of friction-wheels intermediate of the driving-shafts and the shafts operating the feeding devices, one of the friction-wheels of each pair 'being composed of two expansible and contractible parts, which enable the other to coact with it at different distances from its axis, substantially as specified.

2. In a machine for drawing wire, the combination, with a number of drawing-dies, feeding-drums for feeding the wire at points beyond the several dies, shafts operating the feeding devices, and a driving-shaft for imparting motion to the shafts operating the feeding-drums, of sets of friction-wheels intermediate of the driving-shaft and the shafts operating the feeding-drums, one of the friction-wheels of each pair being composed of two expansible and contractible parts, which enable the other to coact with it at different distances from itsaxis, substantially as specified.

3. In a machine for drawing wire, the combination of a number of drawing-dies, feeding devices for feeding the wire at points beyond the several dies, shafts H H H H, operating the feeding devices, a driving'shaft for imparting motion to the shafts operating the feeding devices, and sets of frictionwheels I I I I J J 2 J 3 J, and K K K K intermediate of the driving-shaft and the shafts H H H H*, the wheels J J 2 J 3 J 4 being severally composed of two disks having opposite angular faces and mounted to slide on their supports, substantially as specified.

at. In a machine for drawing wire, the combination, with a number of drawing-dies, feeding devices for feeding the wire at points beyond the several dies, shafts operating the feeding devices, a driving-shaft, anumber of shafts corresponding to the number of feeding devices and deriving motion from the driving-shaft, and gearing for transmitting motion from the last-named shafts to shafts supported so as to have a bodily movement, of pairs of friction-wheels intermediate of the adjustable shafts and the shafts operating the feeding devices, one of the friction-wheels of each pair being composed of two expansible and contractible parts to enable the other to coact with it at difierent distances from its axis, and one of said friction-wheels of each pair being supported upon one of the said adjustable shafts, substantially as specified.

5. In a machine for drawing wire, the combination of a number of drawing-dies, a corresponding number of feeding devices, shafts 1-1 H H H for operating the feeding devices, pairs of friction-wheels I 1 1 I and J J 2 J 3 J shafts carrying the friction-wheels J J 2 J J shafts K,- geared to transmit motion to the wheels J J 2 J 3 J and a driving-shaft for the shafts K, substantially as specified.

6. In a machine for drawing wire, the combination of a number of drawing-dies, a corresponding number of feeding devices, shafts H H H H for operating the feeding devices, friction-wheels I I I I", pairs of frictionwheels J J 2 J 3 J shafts carrying the frictionwheels J J 2 J 3 J and levers or arms supporting these shafts, substantially as specified.

7. In a machine for drawing wire, the combination of a number of drawing-dies, a corresponding number of feeding devices, shafts H H H H for operating the feeding devices, friction -wheels I I I I pairs of frictionwheels J J 2 J 3 J shafts carrying the frictionwheels J J 2 J 3 J levers or arms supporting these shafts, and fasteners for securing these levers or arms in different positions, substantially as specified.

8. In a machine for drawing wire, the com-v bination, with a number of drawing-dies and a corresponding number of independent feeding devices, of the die-holders having their peripheries curved from front to rear concentrically, substantially as specified.

9. In a machine for drawing wire, the combination, with a number of drawing-dies and a corresponding number of independent feeding devices, of the die holders having their peripheries curved from front to rear and being supported in vertically-adjustable brackets, substantially as specified.

10. Ina machine for drawing wire, the combination, with a number of drawing-dies and a corresponding number of independent feeding devices, of the die-holders having their peripheries curved from front to rear and being supported in vertically and horizontally adjustable brackets, substantially as specified.

11. In a machine for drawing wire, the combination, with a number of drawing-dies and a corresponding number of independent feeding devices, of the die-holders having their peripheries curved from front to rear and being supported in oscillating brackets.

ALEXANDER H. LIMONT.

Witnesses:

O. R. FERGUSON, S. O. EDMONDS.

Images