US397272A - bolton - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

A. S. & T. BOLTON.

APPARATUS FOR DRAWING WIRE.

No. 397,272. Patented Feb. 5, 1889.

Wiineavea: 5;

u. rrrzns. Phvlo-Lilhonnphcn Washington. a. c.

(No Model.) 2 Sheeies-Sheet 2. A. S. & T. BOLTON.

APPARATUS FOR DRAWING WIRE.

No. 397,272. Patented Feb. 5, 1889.

N. PETERS. PholoLiflmgr-lpfm. Wahingwn. n. c.

UNTTE STATES PATENT SFFICE.

ALFRED S. BOLTON AND THOMAS BOLTON, OF OAKAMOOR MILLS, NEAR CHEADLE, COUNTY OF STAFFORD, ENGLAND.

APPARATUS FOR DRAWING WIRE.

SPECIFICATION forming part of Letters Patent No. 397,272, dated February 5, 1889.

Application filed September 1'7, 1888. Serial No. 285,606. (No model.) Patented in England June 6, 1887, No. 8,133; in France July 21, 1887. No. 184,923, and in Belgium July 25,1887,NOH78,343.

To all whom it may concern.-

Be it known that we, ALFRED Sonrnr. BoL- TON and THOMAS BOLTON, copper and brass manufacturers, both of Oakanioor Mills, near Gheadle, in the county of Stafford, England, have invented a certain new and useful Improvement in Apparatus for Drawing Wire, (for which we have obtained patents in England,No.-8,l33, dated June 6,1887; in France, No. 184,923, dated July 21, 1887, and in Belgium, No. 78,3i3, dated July 25,1887) of which the following is a specification.

This invention is more particularly intended for performing a process of drawing wire in which the varying rates of draft to suit the elongation of the wire are attained automatically, reliance being bad on the slip of the wire on the blocks or imllingsurfaces by which the wire is drawn through the successive dies, as described in our application for United States Letters Patent, Serial No. 242,725, filed June 28,1887. Wenow propose, in carrying out such a process, instead of arranging the dies in each draw-bench one behind the other in a line and interposing between them driven blocks or pulleys, as described in our above-mentioned patent, to arrange the dies in a group, the number of dies in the group depending on the nature of the material to be drawn, and instead of a series of blocks, we provide a driven shaft or cylin tional elevation, taken in the line] 2 of Figs.

1 and 2, showing the course of the wire through the drawing apparatus. Fig. 4. is a plan view, and Fig. 5 a side elevation, of a common draw-bench arranged to work according to our invention.

A, Figs. 1, 2, and 3, is a bench having two levels and resting upon suitable under framing. Fitted to the lower level of this bench is a lubricating-trough, B, in which runs the draft-drum 0, (represented in this example of my invention as a cylinder,) the same being fitted to or forming part of a shaft, 0, which turns in plumber blocks carried by the bench. Keyed to this shaft is a pulley, C for driving the spindle of the finishing or take-up drum D.

E E are two transverse bars supported by standards E Their use is to carry groups of dies a, varying in number according to the size of the wire to be drawn and the material to be operated upon. The drawings showten dies, that being a suitable number for drawing copper or brass wire. These dies are, it will be seen, arranged in two parallel lines, the dies of the one row being set opposite the spaces of the other row.

F is a reel supported 011 a stud fixed to the bench and serving to carry the wire to be drawn. G is a guide-bar standing in front or forward of the die-bars, for the purpose to be presently explained.

The cylinder C serves to draw the wire through all the dies but the last of the series.

The wire taken from the reel F is passed under or lapped around the cylinder O, which is partially immersed in a suitable lubricant in the trough B. The wire then passes forward to the guide-bar G, around which it is lapped to bring it opposite the first of the series of dies carried by the die-bar E, to receive the first drawing. The wire thence passes through an opening in the die-bar E back to the cylinder O, around which it is lapped one or more times to enable the cylinder to take a firm bite of the wire. From the cylinder the wire is led forward again to the guide-bar G, whence it passes back (through an opening in. the die-bar E) to the first of the second series of dies carried by the die-bar E, and so to the driven cylinder, as before, to be again in like manner led over the guide-bar G and passed to the third or next succeeding die. I11 this way each die of the series is brought to act upon the wire in turn,the cylinder giving the wire the requisite draft n11- til it reaches the last die of the series, 6*. This die has an independent supportsituate in too surface speed imparted by this band to the 5 cylinder C willbe equal to or in excess of the maximum rate of travel intended to be imparted to the wire, and the like surface speed i will be imparted to the finishing or take-up 3 drum, which completes the drawing of the wire.

It will be observed that the surface speed of the drunror cylinder (3 being sufficient to etl'ect the drawing of the wire through the last die but one of the series, where the wire has been elongated to nearly the maximum length, the said speed is more than sufticient to effect the drawing through the preceding dies of the series. This excess of speed is cmnpensated for by the slip of the wire on the drum or cylinder.

A band from the pulley passes down to and under gnide-pulleys and thence -to the pulley I) on the spindle 1) of the take-up drum D. \Vhen a group of machines is arranged according to our invention, the spin dies of the tak e-up drum may all be driven from a vertical spindle placed at the back of the continuous bench, thus enabling the drafteylinder and lubricatingtrough to be continuous for several machines.

To throw the draw-bench out of action, we provide (when driving the take-up drum by friction of contact) means for lifting the drum out of close contact with its coned spindle, which will then rotate without acting upon the drum. For this purpose we mount imme diately below the drum'D an eccentric, D, the pin of which is carried by a short standard on the bench and is fitted with a hand-lever. liy turning this eccentric to bring its longer radius under the drum the drum will be lifted on its eoned spindle, and thereby raised out of frictional contact therewith. If thought desirable, we may use a draft-driun of conical form, instead of one of cylindrical form, to effect the draft of the wire through the dies, their diameter increasing in proportion to the elongation of the wire.

In adapting our invention to draw-benches of the common construction we employ the arrangement shown at Figs. 4- and In these figures, A is the bench or framing. U is the draft-drum, which is of conical form, like an ordinary wire-block, driven in the usual manner from a longitudinal shaft below the bench and fitted with miter-wheels, which gear into miter-wheels carried by the shafts C D. D is another such conical drum or wireblock mounted on the shaft D and constituting the take-up drum. I1 is a reel mounted upon a stud-axle standing up from the bed of the drau bench. Between the draft-drum O and the reel F we insert a standard, E, which is bolted firmly to the bench and serves to carnv a group of (lies, 6, of which live are shown, but which may vary in number according to the depth of the draft-drn m used. and the number of drafts desired to be given to the wire. These dies are set one above another in a vertical line corresponding to the position of the draft-drum. t, and between the group of dies and the reel :1 vertical guidebar, t}, is set up for directing the course of the wire under treatment. \Vhen it is desired to employmo'rc dies than can be placed in a vertical position within the depth of the draftd rum, two upright die-holders and guide-bars may be used, after the manner of the horizontal arrangement of Figs. 1, 2, and 3. 0* is the last or finishing die set between the draftdrum (1 and the take-up drum 1), but to one side thereof, or in a line drawn from the periphery of the cylimlcr to that of the take-up drum. In working with a draw'beneh thus arranged the wire is led from the reel l past the guide-bar G, preferably to the uppermost die 6 whence it passes to the draft-drum around which it is lapped. The wire then returns to the guidebar G and passes through the second die 6 of the set, thence to the draftdrum, as before, and back to the guide-bar. In this way it is led through all. the dies e of the set, and passes (wentually from the drum C to the finishing-die 0*, and thence 'to the take-u p drum 1).

Having now descrilwd our invention, we declare that we claim-- I. In a wire-drawing a 'iparatus, a row or rows of dies arranged betwvecn and parallel with a fixed guide-bar and a rotary draft cylinder or drum, such cylinder or drum serving to impart to the wire under treatmentrates of draft varying with the elongation of the wire, as and for the purpose above described.

2, In a wire-drawing apparatus, a row or rows of dies arranged between and parallel with a fixed guide-bar and a rotary draft cylinder ordrum, in combination with a lubricating-trough into which the draft cylinder or drum dips for the purpose of lubricating the passing wire under treatment preparatory to each successive drawing ALFRED S. BOLTON. THOS. BOLJON. 'Wi tn esses i M. Coornn, I. IV. RowBo'rrL-uu, Clerks with ilIcssrs. .Moody (if l V oolley, So-

gz'cz'lprs and Notaries Public, Derby, Eng- IIO

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