USRE9988E - And boston - Google Patents

Description

H. A. CLARK,

Aasignor to In! CLARK Iusummn Wm: UOIPARY.

MACHINE FOR COVERING WIRE WITH INSULATED MATERIAL.

No. 9,988. Reissued Dec. 27 1881.

lllll PATENT OFFICE.

HENRY CLARK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE CLARK INSULATED WIRE COMPANY, OF ELIZABETH, NEW JERSEY, BRISTOL, PENNSYLVANIA, AND BOSTON, MASSACHUSETTS.

MACHINE FOR COVERING WIRE WITH INSULATED MATE'HIF'AL.

SPECIFICATION formingpart of Reissue d Letters Patent No. 9,988, dated December 27,1881.

Original No. 242,885, dated June 14, 1881. Application for reissue filed November 29, 1881.

To all whom it may concern Be it known that I, HENRY A. CLARK, of Boston, in the county of Snfi'olkand State of Massachusetts, have invented certain new'and 5 useful Improvements in Machines for Covering Wire with Insulating Material, of which the following is a full, clear, and exact description. This invention relates more particularly to machincs adapted for the covering of telegraph ro ortelephone wire with an insulatingmaterialas, for instance, indizi rubber, guttu-pcrcha, or restored waste india-rubber or gutta-percha in any of their vulcanizuhle or other-compoundsand to that class of such machines as are con;

struc'ted and nrranged tor the passage of wire axially through a circular opening in a die or head-block, and for the forcing at the some time of the material with which the wire is to be coated through the same die-opening in a.

manner, to dispose and place such coating material about and around the wires; and as an illustration of this class of machines, reference is hereby had to the schedule annexed to and forming purtof the Letters Patent of the United States issued to Thomas Sault, dated Decemher '9, 1862, No. 37,112; and the object of this invention is to adapt such-machine to the production and manufacture ofa compound telegraph wire or cable, composed of a series of 0 wires arranged in lines more or less parallel with but separated from each other, and for Y the purpose of insulation surrounded and inclosed as a whole, and also as to each of the series, wit-L y; homogeneous and one and the 5 same mass of material or materials, such as aforesaid.

To that end this invention consists ofa guide for the series'of wires, having a distinct guide tube or way for each wire of the series, all of 40 which guideways are arranged iulines paral,

lel, or substantially so, with the axis or common opening in the dieor head block, and open to such die-opening either at or within its mouth, and as to each other are constructed 4 5 and arranged for the materialwhich, with the series of wires, is forced through the common die-opening to-circulate about and surround them as at'whole, and also as to each other, and thus to be disposed at and about the scries'of DIVISION A.

'wires as a whole, and as to each other where so they leave and pass out of their guide-tubes into the common die-opening, all substantially as hereinafter described.

In the accompanying plate of drawings this invention is illustrated.

Figure 1 is a central longitudinal section.

Figs. 2, 3, and 4 are transverse sections on lines 2 2, 3 3,.and4 4, respectively, of Fig. 1. Fig.

5 isa cross section of the compound telegraph wire or cable as produced by this machine.

In the drawings, A represents a chambered cylinder; B, a screw or worm arranged to turn within said cylinder; 0, a hole which opens to the sn-id screw intermediate of its length l), a guide for the series of wires a, shown as rn-nning at right angles to the length of the screw B and cylinder A, andbetween the inner end of the screw and the closed head of the cylinder; E,tl 1e die or head block, having an opening, F, through it, which axially is coincident; with the axial line of the wire-guide D. All of these parts above described are constructed and arranged for the passage of a wire through the wire-guide D into the die-opening F, and at the same time for the forcing of the insulating material under pressure in a plastic state through the die-opening as the wire passes through the same, all substantially (except as hereinafter described) the same as shown and described in the Letters Patent hcreiuhefore 8o 4 referred to.

-. The wire-guide D is provided with a series of guide ways or tubes, b, which run in the direction of its length and imparallel lines, and,

as shown, in the present instance they are seven in number, arranged one at and along the axial line of the guide and the remainder in a circleabout such central guide, and'at .cqualdistanccs apart. Each of these several course, is made of snflicient diameter to admit the said series of wire-guide tubes and leave a space between them and the wall of the dieopening, as stated. I

With a series of wire-guides, b, constructed and arranged in relation to each otherand, to the die-openings above. described, obviously the material with which the'scveral wires are to be insulated or coated, and in conjunction with which they are to pass through the dieopening, is forced around and circulates itself about the wire-guides 11 before reaching the wires which are issuing from the wire-guides at their open ends toward and within the dieopening, and as a consequence the insulating material in a plastic state is forced, pressed, or compacted, or molded in a continuous manher about and between the series of wires as solutelyessential, as otherwise the wires from the pressure of the coating material would be forced together, and thus the proper disposition of the coating material between and around and about them prevented.

Although I have herein particularlydescribed the wire-guides as seven in number and arranged in a particular relation, it is plain that their number may be more or less and their relative arrangement varied, and therefore it is not intended to limit this invention to any particular number or to any part icular relative arrangement of thetn,except that there is to be a series of wires, and practice has shown.

The wire-guide D, in lieu of being arranged at right angles to the line of direction of the screw or worm B and the chambered cylinder A, may be arrangedin an axial line ot'the screw, as shown and described in the Letters Patent aforesaid. In Fig. 5, a are the wires, and f the coating or covering.

Having'thus described my invention, .what I claim, and desire to secure by Letters Patent, 1s r In a machine of the class herein described, the combination of a series of wjre-guides, b, constructed and arranged in relation to each other and to a common die-opening, F, 'substantially as and for the purpose and operation described. t

In testimony whereof I have hereunto set my hand in the-presence of the subscribing witnesse-s.

. HENRY A. CLARK.

Witnesses:

ALBERT H. Noaais, JAMES A. RUTHERFORD.

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