US719788A - Eyelet-machine. - Google Patents

Description

I." Q GILES. EYE-LET MACHINE.

APPLICATION FILED 001.22} 1902.

no MODEL.

llll I 1 Illl PATENTE D FEB. 3, 1903.

UNITED STATES PATENT OFFICE.

ISAAC W. GILES, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO ATLAS TACK COMPANY, OF FAIRHAVEN, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

EYELET-OMACHINE.

SPECIFICATION forming part of Letters Patent No. 719,788, dated February 3, 1903. Application filed October 22,1902. Serial No. 128,264. (No model.)

To aZl whom it may concern.-

Be it known that I, ISAAC W. GILES, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have made certain new and useful Improvements in Eyelet-Machines, of which the following is a specification.

Eyelets have been produced from sheetmetal disks by means of suitable punching and shaping dies, and the lateral edges or rims of the eyelets have been subsequently thickened,and thereby strengthened,bybending or doubling the edge upon itself. By an improved method, however, the edges of the eyelets have been upsetthat is to say, the metal has been crowded back upon itself. The eyelet-rims thus formed require to be polished by a subsequent operation involving the use of a separate machine. I have devised a machine which performs the double function of upsetting the lateral edge or rim of an eyelet and also burnishing and polishing it at one operation.

The machine is simply constructed, may be easily operated, and performs its function automatically and rapidly.

The details of construction, arrangement, and operation of the same are as follows, reference being bad to accompanying drawings, in which- Figure 1 is a side view of the machine. Fig. 2 is an end view of the same.- Figs. 3, 4., and 5 are detail sections on the lines 3 3, 4 4, and 5 5, respectively, of Fig. 2 and illustrate different stages in the operation of forming and burnishing an eyelet-rim.

In the drawings, A indicates a vertical circular rotary wheel which is mounted upon a horizontal aXle C, having its bearings in a suitable frame E. The said axle'is provided with a driving-pulley B, and the said wheel is rotated in the direction of the arrow shown in Fig. 2. The periphery of the wheel is provided with a groove on, whose form is shown in Figs. 3, 4, and 5 I B indicates a fixed former which is secured to the frame E and arranged directly opposite the inner side and the lower portion of the wheel A. Such former B is provided on its inner edge with a groove Z), corresponding in shape to the groove a of the wheel, as shown in Figs. 3, 4, and 5. One side of each groove presents a long curved shoulder or friction-surface which is smaller or conforms to the curve which the outer side of the flange of a completed eyelet is to have. This curved shoulder or friction-surface not only imparts the desired shape to the flange of the eyelet, but also simultaneously burnishes or polishes it on the outside. It will be noted that the said former B is eccentric to the wheel A, so that a gradually-tapered throat or passage is formed betweenthe two. In other words, the space between the wheel A and former B or between their respective grooves a and b is gradually decreased from the upper end or mouth of the passage to the lower end or exit of the same.

The eyelet-blanks upon which the machine operates are suitably produced in the tirstinstance in the form represented in Fig. 3- that is to say, to form such eyelet-blank a disk is punched out of a sheet-metal plate and shaped up by means of dies. As shown in said figure, the rim of the eyelet is radial to the cylindrical body of the same. Such eyelet-blanks m are fed into the passage between the wheel and former from a hopper by any suitable means, and as they pass down in the passage the rim of the eyelet-blank is gradually upset or crowded back upon itself, and thereby gradually thickened. It will be understood that this progressive operation is due to the rotation of the wheel A as well as the contraction of the passage. Thus the eyelet-blank assumes the form shown at y, Fig. 4, and finally the form a shown in Fig. 5. In other Words, the form .2 is that which the eyelet-rim finally assumes before it leaves the machine. Simultaneously with the gradual shaping of the rim and upsetting of the same, whereby it is thickened and strengthened to the required degree, the same is burnished by friction with the adjacent sides of the grooves a and b in the opposing parts A and B or by the cross-rubbing motion of the disk, so that when the eyelet is delivered in finished form its rim or top surface is polished to a high degree. Thus the machine performs at one operation the functions which have hitherto required two separate or independent machines. The construction of the machine is also very simple, and but slight power is required to drive the wheel A.

It will be seen that the machine might be effectively employed for bnrnishing alonethat is to say, for burnishing eyelets which have been previously formed by other means. It is apparent that itis not absolutely necessary the former B shall be adapted to apply friction to the top of the eyelet-rim. In other words, the eyelet-blank may be rotated and also burnished by the action of the wheel alone, or, on the other hand, the wheel-rim A may be so constructed as to effect the rotation of the blank, while the groove of the latter is so constructed as to bnrnish the same.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The machine herein described for upsetting and shaping and simultaneously burnishing the rims of eyelets, the same comprising a circular rotary wheel having its rim provided with a groove and a fixed former arranged opposite and eccentric to a portion of one side of said wheel and having a groove similar to that of the wheel, both grooves having a long curved shoulder or friction-surface on one side for shaping and burnishing the flange of an eyelet-blank, substantially as shown and described.

ISAAC W. GILES.

Witnesses:

DANIEL A. ANTHONY, WILLIAM R. WEST.

Images