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Description

(No Model.) 3 Sheets-Sheet 1. J. KRUESI 81,- J. LANGTON, J12. MACHINE FOR MAKING ELEGTRIGAL GABLES.

No. 334,709. Patiented Jan. 19, 1886.

(NoModeL) 3 Sheets-Sh.eet 2. J. KRUESI 82; J. LANGTON, Jr. MACHINE FOR MAKING ELEGTRIGAL GABLES. No. 334,709.

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No Model.) 3 SheetsSheet 3. I J. KRUESI & J. LANGTON, Jr.

MACHINE FOR MAKING ELECTRICAL GABLES.

N0. 334,709. Patented Jan. 19, 1886.

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JOHN KRUESI, OF BROOKLYN, AND JOHN LANGTON, JR, NEWV YORK, N. Y.

MACHINE FOR MAKING ELECTRICAL CABLE S.

SPECIFICATION forming part of Letters Patent No, 334,709, dated January 19, 1886.

Application filed June 23. 1885.

T 0 all whom it may concern.-

Be it known that we, JOHN KRUEsI, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, and JOHN LANGTON, J r., a subject of the Queen of Great Britain, residing at New York, in the county and State of New York, havejointly invented a certain new and useful Improvement in Machines for Making Electric Conducting-Cables, of which the following is a specification.

Our invention relates to apparatus for making lengths of cables, each consisting of a number of separately-insulated wires massed compactly together, and each adapted to be placed in an inclosing-tube, and the wires of the two tubes then connected together.

Our invention is illustrated in the accompanying drawings, in which Figure 1 is an end View of theapparatus; Fig. 2, a top View of a part thereof; Fig. 3, a top view of the remaining part being a continuation of Fig. 2; Fig. 4:, a section of the dies through which the wires are drawn;-Fig. 4, a perspective view of the reels for winding rope upon the cable; Fig. 5, a view of the chain and pulley at one end of the machine; Fig. 6, aview of those at the other end; Fig. 7, a top view of the clamp for the cable and the mechanism for turning it; Fig. 8, a front View of the clamp; and Fig. 9, a view of the inner portion thereof.

A is a wooden frame or box, upon whose front is a metal plate, B, perforated with a hexagonal series of small holes,a a. Supported beneath the box A is a tank, 0, for holding a suitable liquid insulating material such as linseed-oil-which is heated by a gasfiame at D, supplied by a pipe, E, or in any other suitable manner, to keep it in a liquid condition. A pipe, F, extends up from the tank 0 to a rotary pump, G, which raises the liquid from the tank and discharges it into space behind the plate B, and into pipe I, which returns it to the tank.

In the rear wall of the box A is inserted a die, b, of hexagonal shape. Behind this die is secured to A a tube, 0, in whose farther end is inserted another hexagonal die, d, similar to die 6. Upon the outside of the tube a is a sleeve, 0, upon which are placed two re- Serial No. 169,495. (No model.)

volving drums, K and K, upon each of which is a coil of rope, d or d. The drums are revolved by a chain, c, passing over a pulley, f, on sleeve 0, and extending from a pulley, g, on a shaft, h, turned by bevel-gears i i, gear ibeing on a shaft, in, having a crank, Z, for turning it. Upon the sleeve 0 is placed an arm, m, which carries supports n n and o o, for the rope,which is to be wound spirally on the cable, as will be presently explained.

L L is a track or Way formed of two longitudinal wooden rails,with a bottom or floor, L, between them,which are supported in any suitable manner.

M is a carriage adapted to travel upon said way. It consists of two runners, N N, united by a cross-piece, p, from which rises a standard, g, which forms a bearing for a spindle, r, carryinga ratchet-wheel, s. Rodst t extend from the ratchetwheehwhich carry the clamp for the cable. This consists of a two-part holder, u it, which holds the two-part inner clamp, 12 12. ,Part to is omitted in Fig. 7 to show the construction of inner clamp, 12 e, which is shown also in Fig. 9. Each part c is a halfsleeve having several ribs, w. The two parts when placed together form a hexagonal clamp, which is set in the lower half, to, of the holder, and the upper half, a, is then placed above it and secured by bolts :0 x. The rods tt pass through it and are secured by pins 3 y. A pawl, 0, carried by a lever, P, is used to turn the ratchet and clamp, as will be explained.

Between the rails L L runs an endless chain, Q. At one end the chain passes around a sprocket-wheel, B, on a shaft, S, of cog-wheel T, meshing with a smaller cogwheel, U, on shaft it. Thus by turning handle Z motion is given to the chain, and the sleeve 0 is turned at the same time. At the other end of the track the chain passes over a pulley, V, on a shaft supported between the rails, as is the shaft of the sprocket-wheel B. The chain is attached to the cable-carriage by dropping a link into a notch, z, in a plate, 2, attached to the carriage, the transversly-lying links then holding the chain in the notch.

The operation of the apparatus is as follows: Such a number of insulated wires y y as are to be formed into a cable are passed straight wires.

into the hexagonal series of holes a in plate B, and being drawn through these holes form a hexagonal collection of wires. All of these wires are then brought together through the die 1), tube 0, and die (I, which forces them together into a compact hexagonal mass of The carriage M, with the chain attached to it, is brought up near the dies, and the end of the cable is laid in the lower half of the clamping parts, and those parts are secured together, as before explained, so as to hold firmly the end of the cable. The ends of the roped d are carried around the supports n 0, and so brought down to the cable, and the ropes are given one or two turns by hand around the cable to hold it. The crank Z is then turned,and thus the chain and carriage are moved and the cable is drawn slowly through the dies and thus compressed into shape,and atthesametime the sleeve cand arm in are turned and the ropes d d are wound spirally upon the cable. This rope is designed to furnish a support for the cable when it is placed in its inclosing-tube, and we prefer to use two ropes, because if only one is used its coils, in order to furnish sufficient support, must be wound at such a slight pitch that it will not allow the liquid insulating material with which the tube is filled to run freely through the tube.

Each drum has a grooved flange, (1 in which lies a spring, 0, terminating in a cord or Wire, 6, which passes partly around the flange and is attached to arm in. The other end of each spring passes through arm m,and is provided with a nut, f, for adjusting the tension of the spring.

As the rope from each drum passes around the axially-stationary cable, the revolution of the drum-arm m causes the rope to unwind from the drum and wind itself spirally upon the cable. By adjusting nutsf the tension of the ropes is changed, and either of them may be made to wind faster or slower, which is de sirable in case one drum has more rope on it than the other.

The track is of such length as to enable the carriage to run far enough to draw through the dies such a length of cable as is to be placed in a length of tubing. After such length is drawn through, the carriage may be drawn back by turning the crank the other way; or it may be disengaged from the chain and slid back to the beginning of the track, and then attached to the chain again and another length of cable connected with it.

In some cases it is necessary to bend the cable in order to place it in a curved tubesection. A cable composed of a large number of straight wires cannot be bent readily, because the inner wires will be displaced and the outer ones will be likely to break; but by giving a slight twist to the whole cable it can be bent without such difficulty arising. This is the object of the pawl and ratchet on the carriage, which are used in making a cable which is intended to be bent. A man slowly turns the ratchet by means of the lever carrying the pawl while the cable is being drawn along, and thereby twists the cable. A very slight twist is all that is required.

XVhile the cable is passing through the dies the pump G is constantly operated by means of a belt, XV, from any source of power or in any other convenient manner. A stream of the liquid insulation is thus poured upon the wires before they enter the dies and the wires become coated therewith, so that when the insulation afterward hardens all the interstices between the wires are filled and a solid cable is formed.

The dies b and d are removable, so that dies having openings of different sizes may be employed for forming different-sizcd cables.

Clamps e v of different internal diameters will of course be supplied for the different sizes of cables.

In the application of the said John Kruesi, Serial No. 148,383, are set forth the advantages of the hexagonal form for these cables. Since we prefer to use this form, we have shown and described the present invention as adapted to producesuch form. It is evident, however, that dies and clamps of other forms can be substituted for making cables of other than hexagonal form.

\Vhat we claim is- 1. The combination of the box or frame l3, the plate upon the front thereof and the die at the back thereof, the tank, the pump, and the connecting-pipes, whereby liquid insulalation is poured upon the wires between said plate and said die, substantially as set forth.

2. In a machine for making electrical conducting-cables, the combination of the die, the moving clamp for drawing the cable through the die, and the revolving reels for winding rope upon the moving cable, substantially as set forth.

3. The combination of the endless chain for drawing the cable, the revolving drum, and a common shaft for moving said parts simultaneously, substantially as set forth.

4.. The combination, with the movable clamp for the cable, of means for revolving said clamp, substantially as set forth.

5. The combination, with the clamp for the cable, of the ratchetwheel attached thereto, and the pawl and lever for turning said ratchet-wheel, substantially as set forth,

This specification signed and witnessed this 10th day of June, 1885.

JOHN KRUEST. JOHN LANGTON, JR.

Vitnesses:

CHRISTOPHER ZAHN, BENSON J. \VifLLL-ms.

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