US2576537A

US2576537A - Submersible type insulated connector

Info

Publication number: US2576537A
Application number: US764323A
Authority: US
Inventors: Rogoff Julian
Original assignee: Burndy Engineering Co Inc
Current assignee: FCI USA LLC
Priority date: 1947-07-29
Filing date: 1947-07-29
Publication date: 1951-11-27
Anticipated expiration: 1968-11-27

Description

Nov. 27, 1951 J. ROGOFF 2,576,537

SUBMERSIBLE TYPE INSULATED CONNECTOR Filed July 29, 194'? 2 SHEETS-SHEET l 1 7 INVENTOR.

Julian Kqyoff ATTORNEY Nov. 27, 1951 J. ROGOFF 2,576,537

SUBMEIRSIBLE TYPE INSULATED CONNECTOR Filed July 29, 1947 2 SHEETS--SHEET 2 :1 TEL 10a 1/421 28 0/ 14a 26a 20a,

I INVENTOR. 'JZzZz an, Rqgqff A TFOENEY l atented Nov. 27, 1951 SUBMERSIBLE TYPE INSULATED CONNECTOR Julian Rogoff, New Rochelle, N. Y'., assignor to Burndy Engineering Company, Inc., a corporation. of New York Application July29, 1947, Serial No. 764,323

4 Claims. 1

My invention relates to insulated electrical connectors suitable for use in underground electrical distribution systems.

In underground electrical secondary distribution systems, connections in the cables must be completely insulated in a Watertight manner resistant tothe deteriorating influences of oils, sew-age, gases, etc. which may contaminate the water ordinarily found. in underground manholes and vaults. The task of insulating such connections is usually laborious and time consuming and the final insulated join-ts are of uncertain quality being entirely dependent on the skill of the cable splicer.

Among the objects of my invention are to provide a completely insulated and water-tight connector for a plurality of conductor connections wherein all parts needed for establishing the clamping connection to: an insulated cable are self contained; to provide such a connector wherein the aforesaid parts may accommodate a range of cable sizes; wherein the clamping parts are provided in sealed recesses in the insulation and separately positioned from and readily' accessible tothe cable inserting recess; in n which the clamping recess and the cable insert in-g recess may be quickly sealed after installation of the cable; and wherein the cables may be compactly installed to the connector, side by side in-a minimum of space and the electrical connections establishedby the clamping partsw-i-th maximum facility despite the compact arrangement of the cables.

I accomplish these and other objects and obtain my new results as willbeapparent from the device described in the following specification, particularly pointed out in the claims, andillustrated in the accompanying drawing, in which:

Fig. l is a front elevational view of my sealed connector provided with extending threaded stud for mounting to an aperturedwall.

Fig. 2'is a sectional view of the connector complete with connections. and mounted to an aperturedl wall.

Fig. 3 is a front elevational view ofa similar connector and provided with multiple outlet connections one of which is'shown in section.

Fig. 4 is aside elevation of the same.

Referring more in detail to the drawing, and especially Figs. 1 and 2', reference numeral; ID designates the metal'body section provided with a threaded conductor securing recess oraperture H for receiving a threaded clamping or pressure bolt I 2, and transversely positioned thereto, a conductor-supporting recess I 3 for receiving a bared end it of an insulated conductor l5 provided with insulation [6.

A stud bolt I! may extend longitudinally oi the connector body It, to form attaching means through an aperture is of a container wall H. The entire connector body I!) is covered with a layer of insulation 29 having recessed tubularshoulders 2!, 22, and 2-3, for permitting access to the recesses II and I3, and for encircling a portion of the threaded stud IT respectively.

Caps

24 and 25 are employed for closing the recesses as shown in Figures 1 and 2. The thread ed clamping bolt [2 is provided at its clamping end with an apertured pressure plate 26 through which aperture 21, the end 28' of the bolt [2 extends and which end is peened over to form a swivel, permitting the plate to be tightened to the conductor without rotation when the clamping bolt is turned. The remaining end 29 of the bolt 52 is preferably provided with a hexagonal type recess 29 to permit tightening with a hex type wrench shown in dot-dash lines 2919; Thus, when the bared end M of the conductor is inserted into the recess IS, the clamping bolt when tightened forces the pressure plate against the conductor, securing it to the connector body.

Cap or plug 2 3 may be made of hard insulation material provided with atapering neck 30, and a threaded recess SI for engaging the extending threaded end 29 of the bolt 12. The tubular shoulder 2! may be correspondingly tapered as at 32 to permit the tapered neck 30- of the cap 24 to be pressed tightly thereto, sealing the clamping bolt aperture against leakage.

The tubular shoulder 22 is of sufiicient length to permit a pressure clamp 33. to be applied and tightened thereon sealing the soft insulation of the connector body to the insulation of the conductor.

Cap or plug 25 may be formed with plug end 34 to fit tightly into the recess of tubular shoulder 22, and adhesively sealed thereto to prevent leakage. The adhesive seal, may be broken when the cap is removed for installing the conductor therein.

When the device is mounted to a container as for instance, the wall of a transformer, the extending threaded stud ll with insulation shoulder 23 is inserted through the aperture t8 of the container wall 19; and a compressible type of in sul-ating washer 48 inserted over the stud, with electric terminal 41 inserted thereafter; Nut 42- completes the assembly sealing and securing the insulated connector body II] to the container wall, and simultaneously establishing a path of 3 current flow to the terminal 4!. The soft insulation 2|] acts as a sealing and insulating washer between the connector body and the container wall, washer 40 assisting in this function inside the container wall, the insulation neck 23 insulating the stud from the container wall.

Thus a double insulating and leak-proof seal is created, the connector rigidl secured, and simultaneously the current is transmitted from one conductor to the other.

In place of the stud, any other type of securing and/or electrical transmitting means may be employed.

In Figs. 3 and 4, a multiple outlet type of connector employing my invention, wherein corresponding parts of the device illustrated in Figs. 1 and 2, are identified with the same reference number, adding the postscript a. The conductor outlets 5! to 55 inclusive correspond to clampin outlets 56 to El! inclusive. Outlet 53 of the connector body 18a and the clamping bolt 12a are shown in section, with pressure plate 26a in plain view. Outlet 55 is illustrated with the pressure clamp 33a encircling tubular shoulder 22a, the two ends of the clamp being tightly bolted as at Gla. The hexagonal recess 29a in the clamping bolt 12a, is shown in clamping outlet 59.

It will be noted that by my arrangement of the clamping bolts, I am able to mount the conductor outlets closely together since there is no need to use a wrench required by the cone type fittings hitherto employed concentrically mounted about the, conductor ends. This is of particular advantage in underground manholes, handholes, and vaults, which are usually crowded.

I am thus able to obtain an insulated watertight connection with a minimum of skilled labor required for the tapering type of conductor seal hitherto employed and with less dependence on' the quality of the workmanship.

I have thus described my invention, but I desire it understood that it is not confined to the particular forms or uses shown and described, the same being merely illustrative, and that the invention may be carried out in other ways without departing from the spirit of my invention, and, therefore, I claim broadly the right to employ all equivalent instrumentalities coming within the scope of the appended claims, and by means of which, objects of my invention are attained, and new results accomplished, as it is obvious that the particular embodiments hereshown and described are only some of the many that can be employed to attain these objects and accomplish these results.

What I claim and desire to secure by Letters Patent is as follows:

1. An electrical connector for transmitting current from one conductor to another comprising a metallic body member having a conductor securing recess and a conductor supporting recess transversely positioned with respect thereto and connecting therethrough, an insulating cover for said connector body provided with an opening adjacent each recess in the connector body, plugs of insulating material positioned in the recesses, said body member being threaded about said conductor securing recess and provided with a pressure screw mounted beneath the insulating plug positioned in the conductor securing recess for mechanically and electrically securing the metal end of an insulated conductor to be positioned in the conductor supporting recess, the plug for the is shown,

conductor securing recess having threaded means for threaded engagement with the pressure screw to enable the plug to be tightly secured thereto and making a seal with the insulating cover and means for mechanically sealing the insulating cover to the plug positioned in the conductor receiving recess.

2. An electrical connector for transmitting current from one conductor to another comprising a metallic body member having a conductor securing recess and a conductor supporting recess transversely positioned with respect thereto and connecting therethrough, an insulating cover for said connector body provided with an opening adjacent each recess in the connector body, plugs of insulating material positioned in the recesses, said body member being threaded about said conductor securing recess and provided with a pressure screw mounted beneath the insulating plug positioned in the conductor securing recess for mechanically and electrically securing the metal end of an insulated conductor to be positioned in the conductor supporting recess, the insulating cover being provided with an extending tubular portion about the conductor supporting recess. the plug for the conductor securing recess being threaded for securing a sealed connection to the insulating cover, the other plug for the conductor supporting recess being provided with an inwardly extending neck positioned inside the tubular portion of the insulating cover, and means for mechanically sealing the tubular shoulder about the neck of said other plug.

3. An electrical connector for transmitting current from one conductor to another comprising a metallic body member having a conductor securing recess and a conductor supporting recess transversely positioned with respect thereto and connecting therethrough, an insulating cover for said connector body provided with an opening adjacent each recess in the connector body, plugs of insulating material removably positioned within the recesses, means for securing and sealing the plugs to the insulating cover, means within the conductor securing recess for clamping the metal end of an insulated conductor to be positioned within the conductor supporting recess, said connector body provided with a shoulder and a threaded metal stud extending therefrom for mounting the connector to a supporting structure, said insulating cover constructed of a resilient material and extending around the shoulder and between the shoulder and supporting structure for sealing the connector thereto, when the threaded stud is engaged on the opposite side of the supporting structure.

4. An electrical connector for transmitting current from one conductor to another comprising a metallic body member having a conductor securing recess and a conductor supporting recess transversely positioned with respect thereto and connecting therethrough, an insulating cover for said connector body provided with an opening adjacent each recess in the connector body, plugs of insulating material removably positioned within the recesses, means for securing and sealing the plugs to the insulating cover, means within the conductor securing recess for clamping the metal end of an insulated conductor to be positioned within the conductor supporting recess. said connector body provided with a threaded metal stud extending therefrom for securing the connector to a supporting structure, said insulating cover extending around said stud and partially along its length beyond said insulating cover for insulating the connector from the sup- Number Name Date porting structure. 868,460 LHoest Oct. 15, 1907 JULIAN ROGOFF. 1,064,920 Lovejoy June 17, 1913 1,218,216 Schmid Mar. 6, 1917 REFERENCES C D 5 1,697,954 Gribbie Jan. 8, 1929 The following references are of record in the 1,934,581 Bach 7, 1933 file of patent; I ,08 ,38 Lee July 20, 1937 2,195,630 Papp Apr. 2, 1940 UNITED STATES PATENTS Number Name Date 10 582,464 Dusenbury May 11, 1897 2,311,427 Winkelmeyer Feb. 16, 1943