US1657933A

US1657933A - Electrical connecter

Info

Publication number: US1657933A
Application number: US168344A
Authority: US
Inventors: William E Lindsley
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-15
Filing date: 1927-02-15
Publication date: 1928-01-31
Anticipated expiration: 1945-01-31

Description

Jan. 31, 1928.

1,657,933 W. E. LINDSLEY ELECTRICAL CONNECTER ATTORNEY Patented Jan. 31, 1928.

UNITED STATES WILLIAM E. LINDSLEY, OIF BROOKLYN, NEW YORK.

ELECTRICAL CONNECTER.

Application led- February 15, 1927. Serial No. 168,344.

The present invention is concerned with the provision of means for effecting a good and secure electrical connection between a pair of wires.

The invention is particularly concerned with the twisting together of a pair of electrical conductors in such a manner that a good electrical contactv is established between them, and the connected twisted por- ]0 tions of the wires are entirely protected and concealed.

A further object is to provide means for making an electrical connection of this kind in such a manner that there is no danger of the wires becoming untwisted, and no danger of fouling the contact thus made, even though the connecter be located in an exposed position where it is subjected to the l action of rain and snow.

Other objects of the invention are to pro-v vide an electrical connecting device by which two wires may be connected together with expedition and facility, and a connecting device of simple, .practical construction which will be rugged, durable and efficient in use, and well suited to the requirements of economical manufacture.

With the above noted and other objects in view, the invention consists in certain :i0 novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter set forth and pointed out in the claims. The invention' may bc more fully understood from the following description in connection with thc accompanying drawings, wherein- Fig. 1'is a longitudinal sectional View through a double electrical connecter embodying the present invention.

Fig. 2 is an end View thereof with parts broken away and in section for the sake of clearness.

It is to be understood at the outset that lthe electrical connecters of the present invention may be made as individual units. or may be in the nature of a multiplicity of units rigidly or integrally connected together. For the sake of iliustration I have shown a double unit connecter consisting of a single block 10 of insulating material having two sockets 11 therein coactmg with two plugs 11 which screw into the sockets. Each ysocket plug and associated mechanism consists of a complete electrical connecter unit, and the block 10 might be provided with a single socket or with any number of sockets for the reception of associated plugs in accordance with the particular use to which the connecter is to be put, yand the particular number of wires to be connected.

Each of the sockets 11 includes an outer threaded portion 12 and an inner, prefer ably unthreaded chamber portion l2a within which the two wires to be connected, designated at 13 and 14 are twisted together.

A restricted bore l5 extends from the bottom of the socket 11 through a nipple 16 integral with the end of the block 10. The bore 15 is enlarged and shouldered at 17 for the reception of insulation 18 of the wire 14, the4 wire from the shoulder on being strlpped. The wire 14 is inserted through the nipple 16 until the insulation 18 abuts the shoulder 17 the stripped end of the wire extending through and beyond the socket 11. The wire as it is inserted through the bore 15 is passed through a cap 19 which is subsequently screwed on to the threaded nipple 16 and clamps a rubber gasket 20 against the outer-face of the nipple to seal the connecter against any leakage through the passageway 15 and incidentally to retain the wire 14 against retractive movement.

The plug 11a is formed with a reduced threaded extension 21 adapted to be screwed into the threaded portion 12 of the socket 11. The shoulder defined by thethreaded extension 21 may be faced with any suitable material at 22 to provide a wear surface which engages the end face 23 of the block 10 when the plug 11a is screwed home. The plug is formed with a longitudinally 'extending socket 24 having a iared mouth 25 for the reception of the end of the wire 14 which projects out of the socket l1. The plug is also formed with a shouldered bore 26 corresponding with the bore 15 and with a nipple 27 and cap 28 for retaining and sealing the wire 13 which is introduced through the bore 26 and adapted to enter an aligned reduced socket 29 communicatingA with the socket 11 and having a flaring mouth 30 to guide the end of the wire 13 into place.

The upper connecter unit of Fig. 1 has been shown disassembled with the two wires 13 and 14 secured in the plug lland the block 10 respectively. It will be seen that as the plug isuadvanced toward the block,`

the ends of the wire 14 and 13 will enter their respective sockets 24 and 29 before the reduced extension 21 reaches the threaded portion 12 of the socket 11. Passageway 15 and its aligned socket 24, vand passageway 26 and its ali ned socket 29 are arranged on opposite si es of the aligned central longitudinal axis of the socket 11 and the plug extension 21.which screws into the socket. Thus, when the plug is screwed home, the ends of the wires 13 and 14 will be twisted together in the inner unthreaded'chamber portion 12a of the socket 11. The lower connecter unit of Fig. 1, has been shown withf the plug screwed completely home, and the twist formed in the wire.

Screwing home of the plug may to' a certain extent tend to withdraw the ends of the wire 13 and 14 from-their respective sockets 29 and 24, but such retractive tendency will be slight'since it will be' remembered that the extension-21 is continuously.

shortening the distance between-.

bores

15, 26

and cooperating sockets 24, y29 as' it isscrewed home. n

Preferably some meansv is provided for retaining the plug 11a against accidental retrograde turning movement after-the twist has been made in the wire by screwing the plug home. This means has been `illustrated as a spring pawl secured to the block 10 and cooperating with ratchet teeth 36 on the periphery of. the plug 11a. l f

With the plug screwed home. and held against retrograde'movement bythe ratchet and pawl mechanism, there is no danger of the wire ends becoming accidentally un' twisted, and there is no dangerof moisture entering Lthe connecter and effecting the twisted connection due to the presence of the sealing caps 19, 28 and the presence of' 'the wear plate 22 which may also be in the and the bloc nature of a sealing device. n

The blocks 10 may be molded, cast, or machined of an desired insulating material, may' be made in single or multiple units as will be readil understood.

AThe particular unit illustrate is a double unit, but. even with half of the block 10 'cut away there will be provided an elec-` trical connectin device constructed in accordance with t einvention.

Obviously, various changes and alterations might be made in the general form and arrangement of parts described without departing from the invention. vHence I do not wish to limit myself to the details set forth, but shall consider myself at liberty to make such: changes and alterations as fairly fall within the spirit and-scope of v the appended claims.

I claim: l 1. Anl electrical connecter including a body having a socket therein, the` mouth of which is threaded, said body having a pas sageway therein through ,which a wire is adapted to be. inserted with its end extending through and beyond the socket, a plug member ladapted to be screwed intov the threaded mouth of the socket and having a passageway therein through which a second wire is adapted to be passed into the socket,

means associated with said plug for slid-- ab-ly receiving the end of the wire passed through the body, and means associated with the body for slidably receiving the end orl the wire passed through the plug,

said passageways being disposed laterally of the common longitudinal axes of the plug and socket, whereby screwing the plug home eifects twisting of the two ends of wire together within the inner end of the socket.

2. An electrical connecter including a body having a socket therein, the mouth of lwhich is threaded, said body having a passageway therein through .which a wire is adapted to be inserted with its end extending through and beyond the socket, a plug member adapted to'be screwed into the threaded mouth of the socket and having a passage- 'way therein through which a second wire is adapted tov be passed into the socket, means associated `with said plug for slidably receiving t-he end of the wire passed through the body, and means associated \with 'the vbody for slidably receiving the end ofthe so f wire passed through the plug, said passageways beingdisposed laterally of the common longitudinal axes of the plug and socket, whereby screwing the y plu home leffects twisting of-the two ends o wire together within the inner end of the socket, the means for slidably receiving the wire ends comprising vpockets in thebody and plug adapted to be aligned with the wire passageways before the plug is screwed home.

3. An electrical connecter including a body having a socket therein, the mouth of which is threaded, said body having a passagewayjtherein through which-a wire is adapted to be inserted with its end extending through and beyond the socket,a plug member adapted to be screwed into the threaded mouthvof the socket and having a passageway therein through which a second fects twisting of the. two ends of wire together within the inner end of the socket', and means for reventing accidental unscrewing of the p ug.L l

4. A device as described in claim 3, and wherein said last mentioned means com'- prises ratchet teeth on the plug and a coacting ypawl carried by the body.

5. A device 'set .forth in claim 1, and

lao

-ends ofthe pasaeways. 'm body having a socket therein, the mouth of vwhich is.. threaded, said body having a passageway therein vthrough which a wire is adapted to be inserted with its end extending through and beyondithe socket, a plug member adapted -to ,be screwedA into the threaded mouth of the socket and having a passageway therein through which a second wire is adapted to be passed into the with the body socket, means associated with said plug for Islidabl receiving the end of the wire passed throng the body, and means associated n electrical connecter including a' for slidably receiving the Aend of. the wlrepassed'through the plug',

said passageways being disposed laterally of the common longitudinal axes of the plug and socket, whereby screwing the plug home effects twisting` of the two ends 0i?v wire together within the inner end of the socket, the means for slidably receiving the wire ends comprising pockets in the body and plug adapted to be aligned with the wire passageways before the plug is screwed home, said'pockets having Haring wire guid-- ing mouths.

8. An electrical 'connecter including a pair of connected members relatively rotatable about a common axis and cooperatively defining achamber between them, each of said.

members having a pair of wire receiving passageways therein adapted to be aligned with the corresponding passageways of the opposite member, whereby when the ends ot' two wires have been passed through the aligned passageways, relative rota-tion of the members will effect twisting of the wires together in the chamber.

` WILLIAM E. LINDSLEY.