US1451969A - Insulated connector - Google Patents

Description

L. STEINBERGER Apr. 17, 1923.

NSULATED CONNECTOR Filed May 23, 1919 nvm/ron Lol/f5 Sem berger Aofy Patented Apr. 17, 1923.

UNITED STATES 1,451,969 PATENT OFFICE.

LOUIS STEINBERGER, OF BROOKLYN, NEW YORK.

INSULATED Application led May 23,

To all whom t may concern:

Be it known that I, Louis STEINBERGER, a citizen of the United States, and a resident ofthe borough of Brooklyn, city and State of New York, have invented certain new and` useful Improvements in Insulated Connectors, of which the following is a specication.

This invention relates to insulated connectors in which bodies of oil are utilized as insulating elements.

@ne of the objects of the invention is to provide an insulator comprising a plurality of bodies of oil as insulating elements, said bodies of oil being removable one from the other.

Another object of the invention is to provide a plurality of containers of insulating material one tted within the other, said containers being arranged to receive separate and independent bodies of oil. the containers being bodily removable one from theother. f

Another object of the invention is to provide in an insulator a plurality of oilleontainers, one of said containers fitting longitudinally within the other, each having molded therein or secured thereto portions of the conductor, the said conducting portions being arranged to contact one with the other when the containers are assembled to form the complete insulator body.

Other objects will appear from the subjoined specification and claims.

Referring to the drawin in which the same reference character in icates the same part in the several views:

Fig. 1 is a vertical longitudinal section of an insulated connector embodying my invention.

Fig. 2 shows a vertical section ofthe inner oil container with the central portion of the conductor permanently secured thereto.

Fig. 3 is a vertical section of the cap showing the upper portion of the conducting element permanently secured therein.

In the particular form of my invention as illustrated in the drawing, A is the outside oil container and insulator combined, B is the interiorly disposed oil container and insulator combined, and C is an insulated cap portion therefor.

A portion A is elongated and consists of the wall 10 and bottom 11` forming a centrally disposed cavity therein for holding a body of oil O. A centrally disposed projec- CONNECTOR.

1919. Serial No. 299,212.

the outer and inner surface of the upper i end of the Wall 10 as shown. The portion A and also the portion B are formed in the usual way by molding the insulating material into their required shapes. A supporting metallic ring 50 is so shaped that the central portion of the insulating material when it is molded or pressed therein is en larged at the center. The ring 50 is provided with oppositely extending curved flanges 51 and 52 the inner walls of which form a concave surface 53 within which the insulating material is molded to form the aforesaid enlargement.

Bolt holes 55 are provided in the radially extending ring 50 through which bolts (not shown) may be passed to secure the insulated connector to any suitable support (not shown) as well understood.

The inner oil container B is substantially the length of the outer container A, but it is necessarily of less diameter, the wall 30 being provided at its upper end with a stepped flange 31, the upper step 32 of which extends nearly over the top of the wall 10 of the outer container A to form a closure therefor. The inner step 33 is screwthreaded at 34 to engage the screwthreads 16 on the inner surface of the wall 10 of the container A.

Molded into the bottom of the body B is the central conducting rod 40 which has a head portion 41 anchored therein, which head portion is provided with a socket 42 within which lits the projecting head 21 of the lower conducting portion 20 when the containers are assembled one within the other. A body of oil O substantially fills the chamber in the portion B and thus immediately surrounds the central conducting element 40.

The-cap portion C is also made of insulating material and is molded` into the shape shown, the lower ange of which is screw threaded at 60 so as to engage the screwthreads 15 on the outer surface of the wall 10 of the outer container A, and when in place it forms a closure forthe inner container B. Vhen the cap is secured in place by screwing the same to the upper portion of the outer container A, the conducting member 70, which is moldedwith'n the cen` tral portion of the cap and which extends therethrough, engages the upper end of the rod 40 of the central conducting member. This engagement is effected by reason of the fact that a centrally disposed socket 71 is provided in the lower end of the conducting member 70 into which the upper portion of will be seen that the three elements, namely,

the central yelement B, the cap C and the outer, element A are provided with portions of the conducting member, which portions fit into each other when the containers are assembled. The container` B may be removed bodily from the container A byfirst removing the cap Ctherefrom.

In operation it will be seen that before the composite insulator will break down, the voltage will necessaril have to break through the body of oil through the wall of the interior oil container B, through the body of oil O and then through the wall of the outer container A beforel reaching the flanges 51 and 52 ofthe sleeve 50.

The assembly of the parts is very clear from the above construction. ,The central container B is first inserted longitudinally within' the container A, the two coacting conductors 2O and 40 fitting each other tightly when the upper portion of the container B is screwed Iin place inthe container A. The body of oil O is of course rst placed within the container A andthe oil O is placed within the container B eitherl before or after placing the same within the container A. The cap C is then screwed down into place until the parts are drawn closely together and the three conducting elements 20, 40 and 70 form an efficient conductor so as to make a proper electrical connection.

The insulating material of which the parts are made may be any suitable material, but I prefercto use that material well known in the art as electrose.

As'changes of construction could be made `insulator comprising nested and closed containers, one of said containers forming the closure for the other container, coactlng conductors carried by said containers and a cap of insulating material forming the closure of the first mentioned container, said cap having apconductor molded therein arranged to engage the conductor carried by the innermost container.

2. An insulator having an outer container, an inner container, means on said inner container forming a closure for the outer container, a 'cap engaging' the outer container and forming a closure for the inner container, and a conductor section carried by each of s aid containers and said cap, said conductor sections being in electrical contact one with another to form a continuous conductor through the insulator when the parts are assembled.

3. A composite insulator comprising an elongated insulator body having achamber formed therein,` liquid insulationk carried thereby, a removable container of insulating material for liquid insulation projecting into the chamber and surrounded bythe liquid insulation contained therein and a removable cap of insulating material for excluding foreign matter from said removable container, said chambered bodies and cap having coacting conducting elements secured to and extending through each.

4. A composite insulatorcomprising an elongated insulator body having a chamber formed therein, liquid 'insulation carried thereby, a removable container of insulating mater'al for liquid insulation projecting into the chamber and surrounded by the liquid insulation contained therein and a removable cap of insulating material for excluding foreign matter from said removable container, and separate conductors carried bysaid insulatoribody, said removable container and said cap arranged for .engagement with one another to eectively convey current through the assembled insulator.

5. An insulator comprising a plurality of containers mounted one within the other, a flange on an inner .container forming a clo sure for the adjacent outer container, a cap forming a closure for the innermost container, said cap having securing means engaging the outer-most container, and conductor sections extending through each` of said containers and the cap, said conductor sections contacting one with the other when llo the insulator is assemhed so forni e continu-1 ous electrica conductor therethrough.

6. An insulator comprising a plurality of containers mounted one Within Jhe other, each containing iuid insuat-ien, e 'iange on en inner container forming n closure Jor *she adjacent outer' container, a Cap erming n' closure :for the innernlosiJ container, said cap having securing means engaging bhe outermost containersa and conductor sections extending through each of said containers and the cap, said conduoor secfaons contacting one with another when 'the insulator is assembled no forni a continuous electrical conductor aherethrou h.

n wii'mess Whereo, lf have hereunto set my hand at the borough of Manhattan, city and Shane of New York, this 19th day of Meys 1919.- I

LGUS S' ENBERGER. 2in presence ernrisn-nin, FLETCHER.

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