US351900A - dayton - Google Patents

Description

(No Model. 4 sheets-sheer, 1.

W'. E. `DNI-TON. MACHINE yEOE' GEOOVING SEWING MACHINE NEEDLES, y N0. 351,900. .Patented Nov. 2, 1.886.

3%.... I. l CNM.. y u MW/@Z N. PEEns, Fham-Liuwgmpner. wnhmgm". D. c.

(No Model.) 4 sheets-sheet 3* W. H. DAYTON.

MACHINE FOR GROOVING SEWING MACHINE NEBDLES. No. 351,900. I Patented Nov.- 2, 1886.

F @up s TM r. @s l b S Q M (Nomai.) 4 Sheets-sheet 4.

W. H. DAYTON.. MACHINE EGE GEooVING SEWING MAGE'INE NEEDLEs.

"N0..35I,Goo. Patented NW2, 1886.

Jaw y E UNITED v.STATES PATENT OFFICE.

WILLIAM H. DAYTON, OF TORRINGTON, CONNECTICUT, ASSIGNORTO-THE EXCELSIOR NEEDLE COMPANY, OF SAME PLACE.-

MACHINE FOR GROOVING SEWING-MACHINE NEEDLES.

SPECIFICATION forming part of Letters Patent ITo. 351,900, dated November 2, 1886.

l 'C Application filed March 524, 1886. Serial No. 196,314. (No model.) v

To @ZZ whom it 'may concern,.-

Be it known that I, WILLIAM H. DAYTON, of Torrington, in the county of Litchfield and State of Connecticut, have invented an Improvement in Machines for Grooving Sewing- Machine Needles, of which the following is a specification;

Letters Patent No. 245,356, Igranted to the Excelsior Needle Company, as my assignees, represents aI machine fo'r grooving sewingmachine needles, and so far as the cutters and the mode of operating the same and the de- Avices for clamping the needle the parts of my present invention correspond to those in said patent, and similar letters of reference are placed thereon; hence these parts donot needl to be further described, except to show their connection with the present improvements.

My present improvements relate to devices for supplying the needle-blanks automatically into the holding-dies, and also to means.V for supporting the shank of the needle at the commencement of the grooving operation, and to means for removing the needle from the hold- Y ing-jaws after it has been grooved.

In the drawings, Figure 1 is a vertical 1011- gitudinal section ofthe machine. Fig. 2 is a plan. Fig. 3 is an inverted plan; and Fig. 4 a cross-section at the line w rv, Fig. 1. Fig. 5 is a separate view showing the cam, pin, and secondary lever, which actuate the clampingjaw; and` Fig. 6 is a separate view of the cam for actuating the holding and delivery ngers.

The bed A of the machine receives upon it the slides c, in which the moving'bed bis sup-.

ported, and upon this are the jaws dd', that are grooved upon their adjacent surfaces for the reception of the needle-blank, and lc kare the cutters for'grooving the needles. The bed b is reciprocated by the cam D on the main shaft E, and at F is the driving-shafarwith a worm-pinion, G, Vmeshing with the wheel HY upon the said main shaft E. The bevel-gear I upon the driving-shaft F gives motion to the -bevel-gear K and itsshaft, and to the worm-pinion L and worm-wheel M, upon the shaft 12, whereby I am enabledto actuate the machine by power, so that the shaft 12,wheels r, and other parts that operate to move the cutters up to their work may act in harmony with the reciprocating movement given to the bed b, and the jaws d d', carried by the same;

vThe jaw d is at the end of a lever, di, pivoted at di, and upon the shaft 12 is a cam, c, that acts upon a vertical pin, e5, and this rests upon 011e end ofthe secondary lever e6, that is piv'oted at e* on the bed b,-and the other end of this secondary levereG is beneath the adjusting-screw e7, that passes through the lever d2,

so that when the cam e3, acting upon the pin e5, presses upon the secondary lever e, the rear end is vraised and the lever d2 moved so as to press the grooved jaw d down upon the needle-blank and hold the saine. Vhen the cam eli-releases this lever e, the spring eE opens the jaws. The cam e3 is so made as to cause the Y lever dzand its jaw d to grasp the needle-blank after the same has been properly placed between the jaws and before the cutters 7c k are moved up and the grooving commenced.

"One of the principal features of my present invention relates to the means for supplying the needles. I employ a feed-wheel, O, upon avertical stud, OV', that is upon the sliding bed P, and there are ways or slides P upon the bed A to sustain the sliding bed P. This feedwheel O is made with radial grooves in the iiat upper surface, and over each of these radial grooves is a spring-finger, p, the end of which is rounding or bent up, to facilitate the insertion of the shank of the sewing-machine needle-blanks into such grooves. The feed-wheel O is recessed in lits upper surface, and the grooves are in the upper edge of the annular rim of the wheel, and within the said recess is the flat ring or disk O2, the edge of which forms a stop for the Shanks of th needleblanks. f

The attendant places the Shanks of the needle-blanks into the radial grooves in the feedwheel, and the sliding bed P is moved forward at the proper time by the cam Q on the main shaft E, said caniacting upon the roller q, be-` neaththe bed P, and the needle-blank that is in line with the jaws d d is passed into the same, and the jaws are closed to hold the needle-blank, as before described, and the bed P and feed-wheel are drawn back, leaving the needle in its proper position for being grooved. In orderto revolve the feed-wheel O pro- ICO gressively and to hold thc same firmly while being moved toward and from the jaws d d', I make use of a pawl, R, pivoted at R upon a link, R2, the other end of which link is secured by the screw r to a projection from the bed l?. The end of the pawl R' is adapted to enter successively within the vertical notches upon the periphery of the feed-wheel O, and there is an incline, S, that acts upon a roller, s', upon the under side of the link R2, and there is a gude-bar, s?, with an inclined end corresponding to the angle of the incline S. The distance between the incline S and the inclined end of the guide bar 5* corresponds to the diameter of the roller s'. The operation of this part is that as the bed l? is reciprocated and the link R2 and pawl R' are moved back and forth the incline S swings the link and pawl'to cause said pawl to slide over the periphery of the feed-wheel and drop into the next notch, and when the bed l? is moved in the other` direction the inclined end of the guide s2 causes the link R2 and pawl to turn the feed-wheel around one division and bring another needle-blank into line with the jaws d d', and the straight' side of the guide s being parallel with the central line ofthe machine, the feed-wheel is not turned while being moved after the roller s passes upon the straight portion of the guide s2.

After the needle-blank has been introduced between the jaws d d' and clamped by the same it is important that the shank of the needle-blank be steadied during the commencement of' thc operation of the cutters, because only one cutter acts upon one side of the needle-blanks at the commencement of the grooving, and the needle-blank is liable to be bent by the pressure of the cutter against the side of t-he blank at the junction of the needle with the shank, or the groove to be made rough by the chattering under the action of the cutter. To obviate this difficulty and also to remove the needle blank when it has been grooved, make use of holding and delivery fingers T T', to which a compound. movement is given by the devices next described.

Upon the bed A is a tubular stud, U, and around this is a cani, U', the cam-surface Of which is upon the upper end, and this tubular caln can be raised or lowered upon the stud to adj ust the same, and it is held bya clampingscrew. Thronghthe tubular stud is a tubular stock, V, at the upper end of which is ajaw, V', that rests upon the top of the tubular stud U. Vithin the jaw V' is received the back end of the holding-finger T, the finger being attached to the jaw by pivots, so that the finger can be swung up and down between the sides of the jaw. The finger T' is pivoted at t to the jaw T, and there is a spring, t', that acts to raise the finger T' and open the fingers. Passing through the tubular stock Vis a rod, Y, the upper end of which is beneath the rear end of the finger T'. Below the bottom end of this rod Y is a lever, Y', pivoted at Y2,

and having an adjusting-screw, y, to act directly upon the bottom end of this rod Y, and there is a cam, Y, upon the driving-shaft E, that acts against a roller, Y", upon the lever Y'. The shape of this cam Y3 is such that it will raise the rodY and close the fingers T T' at the proper time, or release the parts and allow said fingers to be opened by the spring t. At the bottom of the tubular stock V is a pinion, V2, and V3 is a toothed sector upon a pivot, V, and there is a roller or stud, V5, against which cams V Y upon the drivingshaft act. The cams being properly shaped and timed, the operations are as follows: The cani V, acting through the toothed sector V3, partially revolves the pinion V2 and tubular stock V and swings the fingersTT' toward the folding jawsd d'. At the commencement of the movenient the fingers are above the feedwlieel O, and are held up by the cam U'. As the fingers swing clear ofthe feed-wheel O, they are lowered at their outer ends by sliding down the cam U', and at this time the open ends of the fingers are at the level ofthe shank of the needle and swing along horizontally, passing above and below the said shank. The cani Y now acts, and by the lever Y' and rod Y closes the fingers, grasping and holding the shank of the needle while the cutter k is pressed up and commences to groove the needle at one side. As soon as the cutter has cut in the full depth of the groove on one side the bed b commences to move endwise. At this moment the cam Y ceases to act, and the fin' gers T T' are loose, and they swing back as the ends of the jaws d el' move along against them. Vhen the needle has been entirely lOO grooved and thej aw d' liberated,aproj eetion of Io 5 the cam Y3 again acts upon the lever Y' and rod'Y to close the fingers T T' and grasp the shank of the grooved needle-blank. The cani V7 now acts, and by the toothed sector V3 and pinion V2 turns the tubular stock V, swinging the fingers T T' around and drawing out the needle-blank, and in this movement the portion of the finger T that rests upon the tubular cam U'runs up the inclined surface of said cani, and the fingers are raised so as to carry the needle-blank up above the feed-wlieel O and swing the same entirely clear therefrom. The cam Y3 now ceases to act, the spring t' opens thel ngers,'the needle-blank drops away from the same, and the operations are repeated.

I claim as my invention*A 1. The combination, with the jaws for holding the needle-blank, and the cutters and mechanism for grooving the saine, ofa feed-wheel having radial notches and spring-fingers for holding the Shanks of the needle-blanks, and a studand sliding bed for sustaining and moving the feed-wheel, substantially as specified.

2. The combination, with the jaws forholding the needle-blank, and the cutters for grooving the same, of' the secondary lever e", shaft l2, cam e, and adj listing-screws, substantially as set forth.

3. The combination, with the clamping- IIO A'and grooving-cutter, of a feed-Wheel for supplying the needle-blanks, fingers for holding the shank of the needle-blank at the commencement of the groovi'ng operation, and for withdrawing and delivering ythe needle-blank, and the mechanism, substantially as specified, for giving motion to the respective parts.

5. The combination, With the feed-wheel, of asupporting-stud, a sliding bed, apawl, a link, a roller connected with the paw), an incline for moving the pawl and turning the feedwheel, and a guide parallel with the axis of the machine for allowing an eudwise movement to be given to the sliding bed to pass the needleblank into the holding -jaws Without turning the feed-wheel, substantially as set forth. Y

6. The combination, with the holding and delivery fingers 'l T', of a tubular stock to y 3o which such lingers are connected, a rod passlingers, and a cam and lever to act upon such rod, substantially as set forth.

7. The Combination, with the holding and delivery fingers, of a cam andmechanism `to close such fingers, a stock for supporting such lingers, a pinion on the stock, and a toothed sector and vcams for turning the stock and svvingingfthe fingers laterally, substantially as set forth.

8. The combination, with the holding and delivery fingers, of the tubular stock and j aw, the tubular stud for supporting the same, the tubular cam around the stud for raising and lowering the fingers, and mechanism, substantially as specied, for opening, closing, and swinging the fingers, as set forth.

9. The feed-Wheel O, having a rim around its edge and radial grooves in the same, in combination with the spring-ngers at the grooves for holding the needle-blanks-and the separate disk or flat rim within the feed-wheel, forming an abutment for the ends of the needleblanks, substantially as set forth.

Signed by me this 10th day of March, A. D. 1886.

WILLIAM H. DAYTON.

Witnesses:

, GEO. T. PINCKNEY, WILLIAM G. MOTT.

Images