US273217A - Tube-forming and cord-covering machine - Google Patents

Description

H.S.BAGON, TUBE FORMING AND GORD GOVERINGMAGHINB. No. 273,217.

Patented Peb.27,1883.

' vide improved means for bending UNITED STAT S HENRY s. BACON, on MILFORD,

PATENT Orrrce.

MASSACHUSETTS, ASSIGNOB TO THE UNION FASTENING COMPANY, OF JERSEY CITY, NEW'JERSEY.

SPECIFICATION forming part of Letters Patent No. 273,217,

dated February 27, 1883.

Application filed July 27, 1882. (No model.)

To all whom it may concern Be it-known that I, HENRY S. BACON, of Milford,in the county of Worcester and State of Massachusetts, have invented certain Improvements in Tube-Forming and Cord-Govering Machines, of which the following is a specification.

This invention has for its chief object to proa strip of sheet metal of indefinite length transversely around a cord to form a tube or metallic envelope inclosing the cord.

The invention consists in the improved devices which I will tirst describe, and then point out in my claims. I 7

0f the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of an organized machine embodying my improvements. Figs. 2, 3, and A represent, respectively, sections on lines a: :r, y 3 and z 2, Fig. 1. Fi .5 represents a section on line :20 as, Fig. 1. Fig. 6 represents a section on line 3 y, Fig. 1.

The same letters of reference indicate the same parts in all the figures.

The material to be bent into a metal cut into a narrow strip, S.

The machine, as a whole, consists of a guide, G, adapted to guide the strip before the latter is bent; a pair of rolls, A B, adapted to bend the strip transversely into a U shape as it emerges from the guide G; a U-shaped guide, H, which holds the bent strip in place laterally after it leaves the rolls A'B; a cord-guide, J, adapted to guide a cord, L, of any suitable fibrous material, into the concavity of the U- shaped strip; a pair of rolls, 0 D, adapted to bend the edges of the U-shaped strip inwardly and give the strip a tubular form, or approximately so; and preferably one or more pairs of compacting or finishing rolls, E F, adapted to complete the tubular form of the strip,in case it is not completed by the rolls 0 D, and press the same closely against the cord, a tubular guide, I, being employed to conduct the strip from the rolls G D to the rolls E F. All the rolls above described are mounted on arbors journaled in a suitable frame, K, and said arbors aregeared together and driven by a tube is sheet suitable motor, so as to rotate the rolls, as inwould he liability of the compress the tube.

departing from dicated by the arrows in Fig. 1. The roll A has a groove, to, in its periphery, and the roll B a corresponding flange or projection, 11, as shown in Fig. 2. The roll 0 has a narrow grooved periphery, 0, while the roll D has a deep peripheral groove, (Z, into which the grooved periphery 0 projects, as shown in Fig. 3, the sides 61 d of the groove (1 being inclined outwardly at opposite sides ofthe roll C. These outwardly-inclined sides d (1, bearing against the edges of the U-shaped strip S, are sure to turn said edges inwardly, whereas if the groove 61 were simply semicircular and terminated at or above the periphery of the roll 0 there edges of the strip failing to turn inwardly, as I have found by practice, the edges of the strip being sometimes caught by the periphery of the roll 1) outside of the groove (1 and turned outwardly. This cannot happen when the sides of the groove are extended and inclined outwardly, as shown. The rolls E F simply have coinciding semicircular grooves ef, as shown in Fig. 4, of such depth as to slightly compress the tube formed by the rolls 0 D. If desired, a second pair of rolls, E F, may be employed, having grooves of slightly less depth, so as to still further The guides G H I J are suitably attached to the frame K, and reels are preferably provided to hold, respectively, a coil of the metal strip S and a coil of the cord L. The cord-guide J is simply a plate having a perforation through which the cord passes, as shown in Fig. 6. The guide H holds the U-shaped strip with its concave side uppermost for the reception of the cord.

1 do not limit myself to the employment in all cases of the finishing-rolls E F, for, if desired, the tubular form of the strip may be entirely completed by the rolls 0 D; nor do 1 limit myself to the employment of the rolls A B and (.l D in one and the same structure or organized machine with the intermediate guides. Each of said pairs of rolls may perform its function independently of the other without the spirit of my invention.

It is obvious that the rolls may be employed for bending a metal strip into a tube without the employment of the cord.

The compound article formed by bending a various purposes,

assert sheet-metal strip in the form of a tubular envelope around a fibrous cord is adapted for particularly to be cut into short lengths for boot and shoe sole fastenings. When used for this purpose the cord should be saturated or treated with wax or some suitable material, to make it impervious to water. Said compound article may also be used in continuous lengths for many of the purposes for which ordinary solid wire is used such as for coarse netting for fences, &c.-its construction giving it the qualities of bulk, strength, lightness, and cheapuess.

If desired, the rolls 0 D and E F may be formed as shown in Fig. 4, each roll having a flange, 1T, projectingiat one side of and beyond the grooved periphery of the other roll. This form prevents the rolls E F, as they compress the tube, from forming burrs or fins on the periphery of the tube.

I prefer to provide the grooves cf with dies or ribs g g, as shown in Fig. 4*, for the purpose of forming longitudinal indentations in the completed tube, as shown I crease its usefulness when cut up into lengths in Fig. 7. Theseiul dentations serve to stitfen the tube and inl grooves of and flanges i i relatively arranged as shown in Fig. 4, whereby the edges of the strip are bent over the cord in the form of a tube, and the formation of burrs or fins 0n the tube is prevented, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 22d day of July, 1882.

HENRY S. BACON.

\Vitnesses:

A. SEAVER, 0. F. BROWN.

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