US2468785A - Screwed sleeve electrical connector - Google Patents

Screwed sleeve electrical connector Download PDF

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Publication number
US2468785A
US2468785A US521307A US52130744A US2468785A US 2468785 A US2468785 A US 2468785A US 521307 A US521307 A US 521307A US 52130744 A US52130744 A US 52130744A US 2468785 A US2468785 A US 2468785A
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United States
Prior art keywords
terminal
sleeve
conductor
terminal member
studs
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Expired - Lifetime
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US521307A
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William C Sealey
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Allis Chalmers Corp
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Allis Chalmers Corp
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Priority to US521307A priority Critical patent/US2468785A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/56—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/26—End pieces terminating in a screw clamp, screw or nut

Definitions

  • This invention relates in general to connectors for electrical conductors and relates particularly to a connector structure f the easily detachable type.
  • Fig. 1 is a sectional front view, taken on the line I-I of Fig. 2, of a terminal assembly ernbodying the present invention.
  • Fig. 2 is a top View of the assembly shown in Fig. 1 with the connectors removed, and
  • Fig. 3 is an exploded view of the connector shown in Fig. 1.
  • Figs. 1 and 2 illustrate an embodiment of the invention in which a base or block 5 of insulating material is shown as supporting a plurality of terminal studs 6. These studs 6 may be molded in or otherwise held in the insulating block 5 and are shown as provided with knurled portions 'I ei'lective to prevent rotation of the stud 6 in the block 5. The studs 6 are threaded at either end lor connection of electrical conductors thereto.
  • Bosses I8 on the block 5 provide greater creepw age distances between the studs 6.
  • an improved connector 22 is utilized.
  • This connector structure is not only of small diameter so that adequate insulation distances between adjacent connectors can be maintained, but it is also provided with means whereby the conductor is easily attachable and detachable although the close spacing of the terminals precludes use of an ordinary wrench.
  • a conductor 8 is connected in good mechanical and electrical relation to a stud 6 by a threaded connection between a conductor terminal member I5 and a conducting' sleeve I I.
  • the terminal member I5 is shown as tubular and as having an enlarged end I1 and a reduced end I6. A portion of the conductor 8 from which the insulation 9 has been removed, is inserted in the member I5 and crimped as shown at 2I in Fig. 1.
  • the conductor 8 and the terminal member I5 may be alternatively or additionally united electrically and mechanically by soldering or brazing or otherwise rigidly uniting them.
  • the terminal member I 5 is externally threaded both on enlarged portion I'I and on the main threaded portion.
  • a conducting sleeve II has two internally threaded portions I2 and I3 which have oppositely directed threads.
  • the sleeve II is provided with a recess such as saw cuts 20 in one end thereof by means of which a spanner type wrench can be used to assemble or disassemble the connector.
  • Lock nuts I 4 similarly provided with recesses IS are utilized to hold the connector assembly 22 in the connected position shown in Fig. 1.
  • a sleeve II) of insulating material has a partial internal thread cooperating with the enlarged portion I'I of the terminal member I5.
  • the sleeve I 0 provides insulation around the conductor 8 between the insulation 9 and the terminal member I5, thereby avoiding the necessity of taping the conductor at the end of the insulation 9.
  • a lock nut I4 is rst backed down on a stud 6 and on the terminal member I5.
  • the insulating sleeve I0 has been placed over the conductor 8 at a distance back from the bared end thereof.
  • the sleeve II is then simultaneously threaded on the stud 6 and the terminal member I5, providing axial movement of the terminal member I 5 and the stud 6 by means of the right and left hand threaded portions.
  • the lock nuts I4 are tightened against the sleeve H as shown in Fig. 1.
  • the insulating sleeve I0 is then screwed down on to the portion l1 ofthe terminal member l5, providing insulation at the joint of 8 and i5.
  • the present invention has particular advantages where conductors are to be led through a casing wall or partition where an oil or gas tight relation of such wall or partition must be maintained.
  • the studs are easily maintained in oil or gas tight relation to the block 5, and the block 5, being of small cross-sectional area, can be easily maintained in oil or gas tight relation in a wall or partition.
  • a connector comprising a conducting stud provided with an external thread on a portion thereof, a tubular terminal member provided i with means integral therewith for receiving an electrical conductor internally of said terminal member in nondetaohable electrical and mechanical connection therewith, said terminal member provided with an external thread on a e portion thereof, said threads being oppositely directed, said terminal ⁇ member threaded portion being provided with a reducedl end portion wherein said conductor is fastened, whereby the fastening of said conductor is effected without disturbing the thread of said terminal member, a conductive sleeve member provided with portions having oppositely directed internal threads thereon, said oppositely threaded portions c-f said sleeve cooperable with said threaded portions on said stud and said terminal member, whereby relative simultaneous axial movement of said stud and said terminal member in opposite directions is obtained upon rotation of said sleeve.
  • a terminal assembly comprising an insulating base, a plurality of conductive studs supported on said base closely adjacent one another and each provided with a threaded portion, and means for detachably connecting conductors to said studs axially thereof, said means compris ⁇ ing terminal members being provided with externally threaded portions and being provided with reduced end portions wherein said conclue tors are fastened, whereby the fastening of said conductors is effected without disturbing the thread of said terminal members, said means further comprising conductive sleeve members having oppositely directed internally threaded por-- tions cooperable with said threaded portions on said studs and said terminal members.
  • a terminal assembly comprising an insulating base, a plurality of conductive studs supported on said base closely adjacent one another and each provided with a threaded portion, and means for detachably connecting insulation covered conductors to said studs axially thereof, said means comprising terminal members connected to the bared ends of said conductors and provided with externally threaded portions adjacent reduced end portions wherein the bared ends of said conductors are fastened, whereby the fastening of said conductors is effected without dis turbing the thread ⁇ of said terminal members, said means further comprising conductive sleeve members having oppositely directed internally threaded portions cooperable with said threaded portions on said studs and said terminal members, whereby relative simultaneous axial movement of said studs and said terminal members in opposite directions is obtained upon rotation of said sleeves, said means further comprising insulating sleeve members supported on said terminal members externally of said conductors and surrounding the ends of said conductor insulation.
  • a connector comprising a conducting stud provided with an external thread on a portion thereof, a terminal member provided with an axial bore for receiving the ⁇ bared end of an insulation covered electrical conductor within said bore in non-detachable electrical and mechanical connection therewith, said terminal member provided with an external thread on a portion thereof and having a reduced portion wherein said conductor is fastened, whereby the fastening of said conductor is effected without disturbing the thread of said terminal member, a conductive sleeve member provided with ⁇ portions having oppositely directed internal threads thereon, said oppositely threaded portionsv of said sleeve cooperable with said threaded portions on said ⁇ stud and said terminal member, whereby relative simultaneous axial movement of. said stud and said terminal member in opposite directions is obtained upon rotation of said sleeve, and an insulating sleeve member supported on said terminal member externally ⁇ of said conductor and surrounding the end of said conductor insulation.

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Description

May 3, `1949. w. c. sEALl-:Y
SCREWED SLEEVE ELECTRICAL CONNECTOR Filed Feb. 7, 1944 Patented May 3, 1949 SCREWED SLEEVE ELECTRICAL CONNECTOR William C. Sealey, Wauwatosa, Wis., assigner to Allis-Chalmers Manufacturing Company, Milwaukee, Wis., a corporation of Delaware Application February 7, 1944, Serial No. 521,307
4 Claims.
This invention relates in general to connectors for electrical conductors and relates particularly to a connector structure f the easily detachable type.
In terminal assemblies, in which a plurality of terminals are supported closely adjacent and in insulated relation to one another, an important problem is that of sufficient insulation distances between connectors joining conductors to the terminals. In many cases it is desirable to utilize a small space for a terminal assembly, but at the same time to maintain adequate insulation distances between connectors on the terminal studs and also to have such connectors easily detachable.
It is therefore an object of the present invention to provide an improved connector of the easily detachable type that can be manufactured at low cost.
It is also an object of the present invention to provide a connector of the easily detachable type that is rugged and eilcient but that has a small outside diameter.
It is a further object of this invention to provide an assembly of a plurality of terminals each having an easily detachable connector of small overall cross-sectional area, whereby adequate insulation distances can be maintained between connectors although such terminal assembly is of small cross-sectional area.
Objects and advantages other than those above set forth will be apparent from the following description when read in connection with the accompanying drawing, in which:
Fig. 1 is a sectional front view, taken on the line I-I of Fig. 2, of a terminal assembly ernbodying the present invention.
Fig. 2 is a top View of the assembly shown in Fig. 1 with the connectors removed, and
Fig. 3 is an exploded view of the connector shown in Fig. 1.
Figs. 1 and 2 illustrate an embodiment of the invention in which a base or block 5 of insulating material is shown as supporting a plurality of terminal studs 6. These studs 6 may be molded in or otherwise held in the insulating block 5 and are shown as provided with knurled portions 'I ei'lective to prevent rotation of the stud 6 in the block 5. The studs 6 are threaded at either end lor connection of electrical conductors thereto.
Bosses I8 on the block 5 provide greater creepw age distances between the studs 6.
In order that the terminal studs 6 may be placed close together, thereby maintaining a small cross-sectional area of the block 5, an improved connector 22 is utilized. This connector structure is not only of small diameter so that adequate insulation distances between adjacent connectors can be maintained, but it is also provided with means whereby the conductor is easily attachable and detachable although the close spacing of the terminals precludes use of an ordinary wrench.
A conductor 8 is connected in good mechanical and electrical relation to a stud 6 by a threaded connection between a conductor terminal member I5 and a conducting' sleeve I I. The terminal member I5 is shown as tubular and as having an enlarged end I1 and a reduced end I6. A portion of the conductor 8 from which the insulation 9 has been removed, is inserted in the member I5 and crimped as shown at 2I in Fig. 1. The conductor 8 and the terminal member I5 may be alternatively or additionally united electrically and mechanically by soldering or brazing or otherwise rigidly uniting them.
The terminal member I 5 is externally threaded both on enlarged portion I'I and on the main threaded portion. A conducting sleeve II has two internally threaded portions I2 and I3 which have oppositely directed threads. The sleeve II is provided with a recess such as saw cuts 20 in one end thereof by means of which a spanner type wrench can be used to assemble or disassemble the connector. Lock nuts I 4 similarly provided with recesses IS are utilized to hold the connector assembly 22 in the connected position shown in Fig. 1.
A sleeve II) of insulating material has a partial internal thread cooperating with the enlarged portion I'I of the terminal member I5. The sleeve I 0 provides insulation around the conductor 8 between the insulation 9 and the terminal member I5, thereby avoiding the necessity of taping the conductor at the end of the insulation 9.
In assembling the connector 22, a lock nut I4 is rst backed down on a stud 6 and on the terminal member I5. Before the conductor 8 is soldered or crimped to the terminal member I5, the insulating sleeve I0 has been placed over the conductor 8 at a distance back from the bared end thereof. The sleeve II is then simultaneously threaded on the stud 6 and the terminal member I5, providing axial movement of the terminal member I 5 and the stud 6 by means of the right and left hand threaded portions. When the terminal I5 and the stud 6 are drawn to the relative positions shown in Fig. 1, the lock nuts I4 are tightened against the sleeve H as shown in Fig. 1. The insulating sleeve I0 is then screwed down on to the portion l1 ofthe terminal member l5, providing insulation at the joint of 8 and i5.
The present invention has particular advantages where conductors are to be led through a casing wall or partition where an oil or gas tight relation of such wall or partition must be maintained. The studs are easily maintained in oil or gas tight relation to the block 5, and the block 5, being of small cross-sectional area, can be easily maintained in oil or gas tight relation in a wall or partition.
Although but one embodiment of the present invention has been illustrated and described it will be apparent to those skilled in the art that various changes and modicaticns may be made therein without departing from the spirit of the invention or from the scope of the appended claims.
It is claimed and desired to secure by Letters Patent:
1. A connector comprising a conducting stud provided with an external thread on a portion thereof, a tubular terminal member provided i with means integral therewith for receiving an electrical conductor internally of said terminal member in nondetaohable electrical and mechanical connection therewith, said terminal member provided with an external thread on a e portion thereof, said threads being oppositely directed, said terminal` member threaded portion being provided with a reducedl end portion wherein said conductor is fastened, whereby the fastening of said conductor is effected without disturbing the thread of said terminal member, a conductive sleeve member provided with portions having oppositely directed internal threads thereon, said oppositely threaded portions c-f said sleeve cooperable with said threaded portions on said stud and said terminal member, whereby relative simultaneous axial movement of said stud and said terminal member in opposite directions is obtained upon rotation of said sleeve.
2. A terminal assembly comprising an insulating base, a plurality of conductive studs supported on said base closely adjacent one another and each provided with a threaded portion, and means for detachably connecting conductors to said studs axially thereof, said means compris` ing terminal members being provided with externally threaded portions and being provided with reduced end portions wherein said conclue tors are fastened, whereby the fastening of said conductors is effected without disturbing the thread of said terminal members, said means further comprising conductive sleeve members having oppositely directed internally threaded por-- tions cooperable with said threaded portions on said studs and said terminal members.
3. A terminal assembly comprising an insulating base, a plurality of conductive studs supported on said base closely adjacent one another and each provided with a threaded portion, and means for detachably connecting insulation covered conductors to said studs axially thereof, said means comprising terminal members connected to the bared ends of said conductors and provided with externally threaded portions adjacent reduced end portions wherein the bared ends of said conductors are fastened, whereby the fastening of said conductors is effected without dis turbing the thread `of said terminal members, said means further comprising conductive sleeve members having oppositely directed internally threaded portions cooperable with said threaded portions on said studs and said terminal members, whereby relative simultaneous axial movement of said studs and said terminal members in opposite directions is obtained upon rotation of said sleeves, said means further comprising insulating sleeve members supported on said terminal members externally of said conductors and surrounding the ends of said conductor insulation.
4. A connector comprising a conducting stud provided with an external thread on a portion thereof, a terminal member provided with an axial bore for receiving the` bared end of an insulation covered electrical conductor within said bore in non-detachable electrical and mechanical connection therewith, said terminal member provided with an external thread on a portion thereof and having a reduced portion wherein said conductor is fastened, whereby the fastening of said conductor is effected without disturbing the thread of said terminal member, a conductive sleeve member provided with` portions having oppositely directed internal threads thereon, said oppositely threaded portionsv of said sleeve cooperable with said threaded portions on said` stud and said terminal member, whereby relative simultaneous axial movement of. said stud and said terminal member in opposite directions is obtained upon rotation of said sleeve, and an insulating sleeve member supported on said terminal member externally `of said conductor and surrounding the end of said conductor insulation.
WILLIAM C. SEALEY.
REFERENCES CITED The following references are of record in thc file of this patent:
UNITED STATES PATENTS Number Name Date 1,064,764 Parker June 17, 1913 1,068,144 Lawler et al. July 22, 1913 1,643,110 Briggs Sept. 20, 1927 1,643,150 Conner Sept. 20, 1927 1,958,747 Fiege May 15, 1934 1,975,244 Wiseman Oct. 2, 1934 2,265,341 Borchert Dec. 9, 1941 2,317,450 Folds et al Apr. 27, 1943 FOREIGN PATENTS Number Country Date 102,648 Austria Feb. 25, 1926 153,933 Switzerland July 1, 1932 205,336 Great Britain Oct. 18, 1923 603,507 Germany Oct. 2, 1934 778,958 France Jan. 5, 1935
US521307A 1944-02-07 1944-02-07 Screwed sleeve electrical connector Expired - Lifetime US2468785A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707272A (en) * 1954-05-21 1955-04-26 Sanders Associates Inc Mounting device for electric components
US2764749A (en) * 1952-04-07 1956-09-25 Garrett Corp Terminal block
US2857583A (en) * 1955-01-07 1958-10-21 Western Union Telegraph Co Molded modular terminal block
US2876190A (en) * 1955-04-18 1959-03-03 Union Carbide Corp Duct anode
US2926128A (en) * 1956-05-11 1960-02-23 Flower Archibald Thomas Anode connector for conductor wires
US3101229A (en) * 1960-10-07 1963-08-20 Amphenol Borg Electronics Corp Electrical connectors
US20080254667A1 (en) * 2005-02-04 2008-10-16 Gary Barnett Electrical Connector
US20110117773A1 (en) * 2004-11-08 2011-05-19 Eric Delmas Aircraft connector assembly
US20110217885A1 (en) * 2010-03-02 2011-09-08 Lineage Power Corporation Apparatus and method for effecting electrical termination with a plurality of types of termination structures
CN102610936A (en) * 2012-04-06 2012-07-25 山东电力集团公司枣庄供电公司 Conductor joint
US9948049B2 (en) * 2016-04-13 2018-04-17 Paccar Inc Starter post relocation assembly

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1064764A (en) * 1912-06-25 1913-06-17 Clarence Lyman Parker Sucker-rod coupling.
US1068144A (en) * 1913-03-08 1913-07-22 Harry A Lawler Switch-rod.
GB205336A (en) * 1922-10-13 1923-10-18 Joseph Wilfred Waddington Improved apparatus and method for repairing broken trolley wires of electric cranes, tramway & other electric wires especially where contact is made by means of a travelling pulley
AT102648B (en) * 1924-02-27 1926-02-25 Siemens Ag Cable end splitter for low-voltage cables.
US1643150A (en) * 1925-12-04 1927-09-20 American Cable Co Inc Attachment for wire strand and process for producing the same
US1643110A (en) * 1924-08-11 1927-09-20 American Cable Co Inc Attachment for wire rope and process for producing the same
CH153933A (en) * 1931-04-23 1932-04-15 Rode Stucky Charles Plug.
US1958747A (en) * 1930-07-28 1934-05-15 Henry C Fiege Ground connection device
US1975244A (en) * 1932-07-08 1934-10-02 United Dry Docks Inc Joint for electrical conductors
DE603507C (en) * 1933-02-12 1934-10-02 Ludwig Gack Spring-loaded connector pin, especially for radio purposes
FR778958A (en) * 1934-09-27 1935-03-27 Connection for electric cables
US2265341A (en) * 1938-07-02 1941-12-09 Firm Henschel Flugzeug Werke A Air- and gas-tight wall leadthrough for electric wiring systems, particularly in high altitude aircraft
US2317450A (en) * 1942-04-25 1943-04-27 Cook Electric Co Terminal box

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1064764A (en) * 1912-06-25 1913-06-17 Clarence Lyman Parker Sucker-rod coupling.
US1068144A (en) * 1913-03-08 1913-07-22 Harry A Lawler Switch-rod.
GB205336A (en) * 1922-10-13 1923-10-18 Joseph Wilfred Waddington Improved apparatus and method for repairing broken trolley wires of electric cranes, tramway & other electric wires especially where contact is made by means of a travelling pulley
AT102648B (en) * 1924-02-27 1926-02-25 Siemens Ag Cable end splitter for low-voltage cables.
US1643110A (en) * 1924-08-11 1927-09-20 American Cable Co Inc Attachment for wire rope and process for producing the same
US1643150A (en) * 1925-12-04 1927-09-20 American Cable Co Inc Attachment for wire strand and process for producing the same
US1958747A (en) * 1930-07-28 1934-05-15 Henry C Fiege Ground connection device
CH153933A (en) * 1931-04-23 1932-04-15 Rode Stucky Charles Plug.
US1975244A (en) * 1932-07-08 1934-10-02 United Dry Docks Inc Joint for electrical conductors
DE603507C (en) * 1933-02-12 1934-10-02 Ludwig Gack Spring-loaded connector pin, especially for radio purposes
FR778958A (en) * 1934-09-27 1935-03-27 Connection for electric cables
US2265341A (en) * 1938-07-02 1941-12-09 Firm Henschel Flugzeug Werke A Air- and gas-tight wall leadthrough for electric wiring systems, particularly in high altitude aircraft
US2317450A (en) * 1942-04-25 1943-04-27 Cook Electric Co Terminal box

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764749A (en) * 1952-04-07 1956-09-25 Garrett Corp Terminal block
US2707272A (en) * 1954-05-21 1955-04-26 Sanders Associates Inc Mounting device for electric components
US2857583A (en) * 1955-01-07 1958-10-21 Western Union Telegraph Co Molded modular terminal block
US2876190A (en) * 1955-04-18 1959-03-03 Union Carbide Corp Duct anode
US2926128A (en) * 1956-05-11 1960-02-23 Flower Archibald Thomas Anode connector for conductor wires
US3101229A (en) * 1960-10-07 1963-08-20 Amphenol Borg Electronics Corp Electrical connectors
US20110117773A1 (en) * 2004-11-08 2011-05-19 Eric Delmas Aircraft connector assembly
US20080254667A1 (en) * 2005-02-04 2008-10-16 Gary Barnett Electrical Connector
US20110217885A1 (en) * 2010-03-02 2011-09-08 Lineage Power Corporation Apparatus and method for effecting electrical termination with a plurality of types of termination structures
US8647159B2 (en) * 2010-03-02 2014-02-11 General Electric Company Apparatus and method for effecting electrical termination with a plurality of types of termination structures
CN102610936A (en) * 2012-04-06 2012-07-25 山东电力集团公司枣庄供电公司 Conductor joint
US9948049B2 (en) * 2016-04-13 2018-04-17 Paccar Inc Starter post relocation assembly

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