US975592A - Electric-cable joint. - Google Patents

Description

Patented Nov. 15, 1910.

WILBUB 0. WILSON, OF CHICAGO, ILLINUEE.

ELno'rmc-cnn-LE some Specification ot'lettera Patent. Patented Nav. 15., 1910.

Application filed August 16, 1909. Serialll'o. 513,692.

To all whom 'itimay concern:

Be it known that I, VVILnUn 0. WILSON, a

citizen of the United States, residing at Ohicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Electric-Cable Joints, of which the following is a specification.

My invention relates to improvements in electric cable joints, the object of the inven 'tion bein to provide simple and inexpensive means'w ereby a joint of this character may 1 and in which.

Figu of the lead jacket of my improved cable joint, Fig. 2 is a central longitudinal section. of the completed joint, and Fig. 3 is a transverse section of the ire strand electric conductor of the cable showing the end of a copper Referring now to the drawings, nates the contiguous ends of an' electric cable and 2 the leadcovering thereof. Before the ends 1 are thus brought together the lead covering 2 and the insulation 3 are *utaway as shown in Fig. 2. Then the lead acket 1 having the reduced ends 5 is placed over one of the endsof a cable and movedback a distance therefrom. A copper sleeve 6 having a longitudinal opening 7 is now placed over the ends 2, said opening being provided to admit molten solder which is poured into the same and sweated. into the interstices around and between the ends of the Wires,

thus forming a solid mass of metal which allows the current to flow with the least pos-.

sible resistance. Prior to making this soldered connection paper sleeves S are placed over the insulation 3, and a paper sleeve 9 re 1 is a central longitudinal section sleeve used in making the joint. 1 desigis placed temporarily over the lead covering 2 ready to be moved into proper position after the soldering operation is performed.

When the sleeve 9 is moved into the position as shown in. Fig. 2 thesaine overlaps the sleeves 8 and it is apparent that a continuous insulation is formed comprising the insulation and the paper sleeves 8 and 9. The acket his now moved into position as shown in F 1g. 2, when the reduced ends 5 thereof are compressed into enga ement with the lead coverings 2 and soldered thereto by means of a wiped joint or otherwise. Aper' gle aperture 11 is'iorined in the jacket l. Molten parailin 12 is poured through the around the copper sleeved. This latter construction is desirable since harmful induced currents might be generated ii: there was an a1r space around the sleeve 6. A joint having an cilicient insulation is thus formed, the effect of the parailin besides acting as an elfithe paper insulating sleeves absolutely dry. The joint is completed by sealing the aperture Ill with solder.

lit will be noted that the sleeves are all cylindrical and symi'netrical in form, hence the-same a readily manufactured and easil assembled in the joint. The lead jacket 15 also oi? the simplest possible form, the ends thereof being formed cold in a piece of lead tubing.

Various slight changes might be made in the general form and arrangement of parts ('lescribedv Without departing from my invention, and hence I do not restrict myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall \vithinthe spirit. and scope of the appended claim.

Having described my'invention what'I Patent is:

In a joint of the class described, two cables each having an electric conductor and an insulation therefor, lead coverings for the insulation of the cables, a lead. jacket having reduced ends soldered to said lead got the conductors and soldered thereto, a

coverings, a copper sleeve inclos'ing the ends .tures 10 are formed in the sleeve 9 and a sinaperture Ill thus filling the annular space cicnt insulator being also adapted to keep claim as new and desire to secure by Letters v paaer sleeves, said paper sleeve being proiayer of paraffin surrounding said c0 per sleeve, paper sleeves surrounding the en 5 of said insulation, :1 aper sleeve surrounding said layer of paraii in and a portion of said sleeve :ind'the Walls of said jacket, subsiem 10 tially as described; In testimony whereof I have signed my name to this specificationin the presence of two subscribing witnesses.

ed with apertures through which said WILBUR 0. WILSON. parafiin is adapted to flow when in a molten YVitnesses: conditiqnand; a fillin of parafiin in the an- HELEN F LILLIB, nulm' spi-efiietween t e Walls of said paper 1 JOSHUA R. H. Por'rs.

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