US972967A - Method of making channel ribbon. - Google Patents

Description

'J. D. WILSON. I mmnon or MAKING 0 Y APPLIOATIOH 11.21: 00m. 21, 1909;

I l E METHOD OF MAKING CHANNEL RIBBON.

Specification of Letters Patent.

Application filed October 21, 1909.

Patented Got. 18, 1910.

Serial No. 523,798.

To all whom it may concern:

Be it known that I, JAMES D. VVILsoN, a resident of Baltimore, State of Maryland, have invented certain new and useful Improvements in the Method of Making Channel Ribbon; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to a method of making channel-ribbon direct from wire, and the object of the invention is to provide for making such ribbon direct from the wire preferably at a single operation.

The invention consists in the improved method hereinafterdescribed and particularly pointed out.

In the accompanying drawing which illustrates the invention and forms part of the specification, Figure 1 is a side view of a pair of die rolls adapted to carry out the method; Figs. 2 and 3are side views of the same differently adjusted; Fig. 4 shows die rolls of different shape for the same purpose; Figs. 5, 6 and 7 show different adjustments of the rolls of Fig. 4; Fig. 8 shows on an enlarged scale the several forms or cross section of ribbons produced by the rolls of Fig. 1 by their three adjustments; Fig. 9 shows the forms of ribbon made by the rolls of Fig. 4 by the three adjustments thereof; Fig. 10 shows the forms of ribbon made by rolls like those of Fig. 4 but reversed as to angles of sides of the die rib and groove.

The present improvement is primarily intended to facilitate the manufacture of substantially V-shape ribbon direct from solder wire for hemming caps for tin cans, but is applicable also to other uses, and t9 modified forms of channel ribbon.

Prior to this invention channel ribbon has been made from wire by first rolling it into form of a flat ribbon by suitable means, and then by forming devices bending the flat ribbon into channel form. Such old method was faulty because it required a plurality of been necessary to trim the edges. I overcome all these objections.

In the drawing numeral 1 denotes a male die roll, 2 a female die roll, and 3 shafts therefor, which may be mounted and driven in any suitable manner.

Numeral 4 denotes a male-die-annularrib, and 5 a corresponding wire-forming and centering groove of the other die roll.

In Fig. 1 the center lines of the dies 1 and 2 are in the same plane. When the rolls are rotated and a wire, for example a solder wire of suitable size, and of round or other cross section, and at normal teniperature, is introduced between the rolls, the wire is guided and centered by the groove 5, and the die rib 4 partly cuts or separates the metal of the wire longitudinally, and the rolls form such metal into the opposite sides 6, 7, constituting the channel ribbon. The rolls being arranged as shown will form the edges of the sides perfectly straight even when the wire has bends in it, and no trimming is needed.

The dies being symmetrically arranged the opposite sides or flanges of the ribbon will be of the same width and thickness, as shown at a in Fig. 8.

In Fig. 2 the center line of roll 1 is in a plane at the left of the like plane of roll 2. And in Fig. 3 the center line of roll 1 is in a plane to the right of the like plane of roll 2. The corresponding ribbons produced are shaped as at b and c Fig. 8, respectively, that is, in the first case the right hand side of the channel ribbon is thicker than the left hand side; and in the second case it is vice versa. The rolls are set or adjusted in accordance with the character or form of ribbon wanted.

It is sometimes desirable to form the oppo' site sides or flanges of the ribbon of unequal width. This requires a modification of the annular groove and die ring of the rolls.

In Fig. 4 the left side of the groove 5 and of the die 4 are shown shorter, and at a sharper angl e, than the right sides, and this results in producing a ribbon having substantially the form shown in Fig. 9 at (Z, and by displacing the rolls slightly in relation to each other to the right or to the left ribbons will be made as at 6, with one side comparatively narrow and thin, and the other side wide and thick, and vice versa, as at f.

g, h, 2', Fig. 10, show a mere reversal as to sides of the forms (Z, 6, f, which require rolls like those of Fig. 4 except that the angles of the sides of groove and rib would be reversed.

Fig. 7 shows the wire to be made into ribbon centered in the groove, the upper roll not yet being close enough to form the ribbon.

Though it is preferred to employ a single pair of die rolls only in carrying out my method, the employment of a preliminary pair of such rolls to partially slit the wire in advance of the final slitting and forming thereof would be within the scope of my invention.

The invention is not limited to special apparatus except as pointed out in the claims, nor is it limited to.the production of channel ribbon of the particular shapes and proportions illustrated and described.

Having thus described the invention what I claim is,-

1. The improved method of forming channel ribbon from wire which consists in partly cutting the metal longitudinally of the wire and reducing and forming the wire into the desired channel shape by a single pair of die rolls at one operation.

2. The improved method of forming channel ribbon from wire which consists in longitudinally slitting such wire and forming it into the desired channel shape with straight edges by a single pair of die rolls which act on the broad sides only of the ribbon, and at one operation.

3. The improved method of directly forming channel ribbon from wire which consists in longitudinally partly dividing such wire so that the amount of material will be greater on one side than on the other, and forming it into the desired channel shape with straight edges by a single pair of rolls, and at one operation.

i. The method of forming channel ribbon direct from wire which consists in centering a wire in and by a forming groove of a rotary roll, partly splitting said wire by a cutting die-rib of a cooperating rotary roll, and directly reducing and forming the divided portions of the metal of the wire to the channel form.

5. The method of forming channel ribbon with straight edges direct from wire at a single operation which consists in centering a wire in and by a forming groove of one rotary roll of a pair, partly splitting said Wire by a cutting die-rib of the cooperating rotary roll of said pair, and directly reducing and forming the divided portions of the metal of the wire to the channel form.

6. The method of forming channel ribbon direct from wire which consists in centering a wire in and by a forming groove of a retary roll, partly splitting said wire by a sharp cutting die-rib of a cooperating rotary die-roll, and directly reducing and forming the divided portions of the metal of the wire to the channel form by rolling the two larger faces and not the edges.

7. The method of forming channel ribbon direct from wire which consists in centering a wire in and by a forming groove of a retary roll, partly splitting said wire along any desired dividing line thereof, whereby the relative amount of material in the sides will be determined, by a cutting die rib of a cooperating rotary roll, and directly reducing and forming the divided portions to the channel form.

8. The method of forming channel ribbon having a predetermined amount of metal per unit of length direct from wire which consists in centering a wire having a greater amount of material per unit of length in and by a forming groove of a rotary roll, partly splitting the wire along the desired dividing line thereof, whereby the relative amount of material in the sides will be determined, by a cutting die rib of a cooperating rotary roll, and directly reducing and forming the divided portions to the channel form having said predetermined amount of material per unit of length.

9. The method of forming channel ribbon with straight unrolled edges and having a predetermined amount of metal per unit of length direct from wire which consists in centering a wire having a greater cross section than the desired ribbon inand by a forming groove of a rotary roll, partly splitting said wire along the desired dividing line, whereby the amount of metal in the sides will be determined, by a cutting die rib of a cooperating rotary roll, and directly reducing and forming the split wire to the channel form of selected cross section.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

JAMES DANIEL WILSON. lVitnesses:

SAMUEL J. FISHER, ALLAN HERBERT FIsrmR.

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