US1706005A - Method of making cord tips - Google Patents

Method of making cord tips Download PDF

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Publication number
US1706005A
US1706005A US531842A US53184222A US1706005A US 1706005 A US1706005 A US 1706005A US 531842 A US531842 A US 531842A US 53184222 A US53184222 A US 53184222A US 1706005 A US1706005 A US 1706005A
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US
United States
Prior art keywords
conductor
connector
method
insulated
making
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US531842A
Inventor
Walter V Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Western Electric Co Inc
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to US531842A priority Critical patent/US1706005A/en
Application granted granted Critical
Publication of US1706005A publication Critical patent/US1706005A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/058Crimping mandrels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49174Assembling terminal to elongated conductor
    • Y10T29/49181Assembling terminal to elongated conductor by deforming
    • Y10T29/49185Assembling terminal to elongated conductor by deforming of terminal
    • Y10T29/49188Assembling terminal to elongated conductor by deforming of terminal with penetrating portion
    • Y10T29/4919Through insulation

Description

March 19, 1929. w v, THOMPSON 1,706,0Q5

METHOD OF MAKING CORD TIPS Filed Jan. 26, 1922 Patented Mar. 19, 1929.

UNITED STATES PATENT OFFICE.

WALTER V. THOMPSON, 0F ROSELLE PARK, NEW JERSEY, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METHOD OF MAKING CORD TIPS.

Applicationfiled January 26, 1922. Serial No. 531,842.

This invention relates to electrical connectors and a method for applying said connectors to insulated wires to form terminals thereon.

The object of the invention is to provide a connector for electrical wires which may be securely attached without scraping the insulation from the wires and without the use of solder to secure it to the conductor.

The invention provides a connector having spike members which may be pressed through the insulation of a conductor thereby making contact with the metal strands therein and a body portion which may be simultaneously bent or wrapped about the insulated conductor for securely attaching the cord tip thereon.

In making electrical connections in large numbers as is done, for example, in telephone exchanges, it is important to provide connectors or cord tips which will insure a perfect connection and which will give lasting service. It has heretofore been the practice to cut the insulated conductor wire to the proper length, to cut or scrape the insulation from the end of the conductor, to wrap strands of thin wire about the end'of the conductor, to solder thereto the conducting portion of the connector and to bend the body portion of the connector about the end of the insulated wire to securely fasten the same thereto.' This process is not only tedious, but expensive owing to the numerous operations involved. The present invention provides a connector and a. method of attaching it to an insulated conductor which performs substantially simultaneously the steps of securing the connector to the conductor, making an electrical connection between the cord tip and the conductor and cutting the conduct-or to the proper length.

In the drawings, disclosed Fig. 1 is an enlarged view of a connector which embodies the invention in its preferred form. Fig. 2

' shows the improved connector attached to an insulated conductor. Fig. 3 is an enlarged cross sectional View showing the projections of the connector piercing the insulation and contacting with the stranded conductors therein. Fig. 4 is a partial end elevation of a punch press which may be used for performing the steps of my improved method. Fig.

the apparatus with the invention comprises a metal punching which is provided with a connecting arm 1 having a U -shaped contacting tip 2. A body or shank portion 3 of the improved connector is provided with ears or wings 4 on either side thereof which may be crimped or bent around the insulated wire to which the connector is to beapplied. Two sides of triangularly shaped holes are cut in the shank portion 3 and the cut portions punched through to form sharp pointed projections 5 of metal which project at right angles to the surface of the shank.

Fig. 2 shows the improved connector applied to an insulated wire which comprises a series of strands 6, an insulating coating of rubber 7 and a braided wrapping of fibrous material 8. In applying the connector to the conductor, the projections 5 are forced through the braided wrapping 8 and the insulating coating of rubber 7 into the stranded conductor wires 6 (Fig. 3), the ears or wings 4 of the shank portion being crimped or wrapped around the outside of the conductor to secure the connector to the conductor and to hold the projections 5 in engagement with the stranded conductors 6. The conductor is then cut at that end of the body or shank por tion 3 adjacent the connecting arm 1, to leave the arm entirely exposed as is shown in Fig. 2.

Figs. 4 and 5 illustrate an apparatus which may be employed to perform my improved method of attaching to insulated conductors a connector made in accordance with my invention, which method consists in forcing projections on the connector through the insulation of the conductor thereby establishing electrical connection between the strands within the conductor and the connector, crimping the body portion of the connector on the conductor to hold the connector thereon and cutting the conductor to the proper length so as to expose the contactingarm of the connector: The illustrated means for performing these operations consists of a punch press provided with a grooved stationary die 9 into which the conductor and connector are pIaced, a cylindrical lug or stop 10 being provided for determining the position of the connector and the conductor on the stationary die 9. A reciprocating die 11 cooperating with die 9 is provided with a V-shaped groove 12 which registers with groove 13 in stationary die 9 so that, in its downward movement the sides of the groovedreciprocating die engage the upturned wings 4 of the connector seated in groove 13 of stationary die 9, and crimps them around the insulated conductor. Reciprocating die 11 is also provided with a chisel blade 14: having a knife edge 15 which in its downward movement cuts the insulated conductor to the proper length exposing the contacting arm 1 of the connector.

From the above, it will be seen that the piercing,crimpingandcuttingoperationsmay be accomplished substantially simultaneously. The means for doing this however is not to be understood as being limited to that shown in the disclosure which merely illustrates one apparatus with which the improved method may be performed.

lVhat is claimed is:

The method of making a cord tip for telephone cords which consists in laying an insulated conductor in a channel formed in a sheet metal blank having a projecting terminal,

substantially simultaneously forcing the sidesof the channel around said insulated conduct-or to form a jacket to hold it firmly, cutting the insulated conductor where it emerges from the jacket, and making a permanent electrical connection between said conductor and tip by forcing sharp projections on the jacket through the insulation and into contact with the conductor.

In Witness whereof, I hereunto subscribe my name this 24th day of January A. D., 1922.

l/VALTER V. THOMPSON.

US531842A 1922-01-26 1922-01-26 Method of making cord tips Expired - Lifetime US1706005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US531842A US1706005A (en) 1922-01-26 1922-01-26 Method of making cord tips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US531842A US1706005A (en) 1922-01-26 1922-01-26 Method of making cord tips

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US1706005A true US1706005A (en) 1929-03-19

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501870A (en) * 1945-11-24 1950-03-28 Western Electric Co Terminal for electrical conductors
US2515105A (en) * 1947-08-08 1950-07-11 Allied Electric Products Inc Method of making an electrical connection to an insulated wire
US2550578A (en) * 1946-05-29 1951-04-24 North Electric Mfg Company Relay construction
US2551299A (en) * 1943-10-06 1951-05-01 Aircraft Marine Prod Inc Electrical connector and method of making the same
US2557126A (en) * 1946-06-27 1951-06-19 Aircraft Marine Prod Inc Electrical connector
US2574608A (en) * 1947-08-13 1951-11-13 Andrew H Ziph Electrical junction box connector
US2630468A (en) * 1951-04-30 1953-03-03 Maxwell H Lewis Terminal connector for electrical conductors
US2663139A (en) * 1949-10-31 1953-12-22 Gibbs Mfg And Res Corp Pallet lever construction
US2668950A (en) * 1951-04-09 1954-02-16 Western Electric Co Apparatus for applying terminals to electrical conductor wires
US2680235A (en) * 1949-09-16 1954-06-01 Aircraft Marine Prod Inc Electrical connector
US2688133A (en) * 1950-12-29 1954-09-07 Aircraft Marine Prod Inc Applicator for connectors and the like
US2692422A (en) * 1948-03-10 1954-10-26 Aircraft Marine Prod Inc Method of applying connectors
US2704358A (en) * 1947-10-24 1955-03-15 Aircraft Marine Prod Inc Electrical connection and method
US2768378A (en) * 1951-04-14 1956-10-30 Zwick Nicholas Machines for attaching terminals to cords or the like
US2783442A (en) * 1953-08-03 1957-02-26 Thomas & Betts Corp Method of and apparatus for forming electric terminals
US2786263A (en) * 1953-01-07 1957-03-26 Nat Products Corp Apparatus for assembling sheathed cable connectors
US2789278A (en) * 1953-05-01 1957-04-16 Controls Company Electrical connection and method of making the same
US2798895A (en) * 1954-06-18 1957-07-09 Ray O Vac Co Point contact battery
US2802194A (en) * 1954-10-28 1957-08-06 Gen Motors Corp Terminal
US2818632A (en) * 1952-09-24 1958-01-07 Amp Inc Electrical connection and method
US2869100A (en) * 1956-11-23 1959-01-13 Mayfair Molded Products Corp Anode connector
US2880259A (en) * 1954-06-18 1959-03-31 Electric Storage Battery Co Primary battery
US2927150A (en) * 1955-12-20 1960-03-01 Aircraft Marine Prod Inc Insulation piercing crimp
US3162501A (en) * 1960-01-21 1964-12-22 Amp Inc Electrical connector
US4018499A (en) * 1973-12-18 1977-04-19 Amp Incorporated Contact for insulated wire
US4136922A (en) * 1975-07-23 1979-01-30 Essex International, Inc. Ignition cable terminals
US5207596A (en) * 1992-03-19 1993-05-04 Tandy Corporation Solderless coaxial wire connector and method for attachment
US5480325A (en) * 1994-05-27 1996-01-02 Tandy Corporation Coaxial connector plug and method for assembly
US6206727B1 (en) * 1998-11-27 2001-03-27 Sumitomo Wiring Systems, Ltd. Terminal and crimping method
DE102004049575A1 (en) 2004-10-12 2006-04-20 Sick Ag Electrical terminal for connecting conductor cable to PCB, has terminal unit provided for pressing in conductor cable for electrical link of conductor cable, where terminal unit is designed as spike
EP1921713A1 (en) 2006-11-10 2008-05-14 Zierick Manufacturing Corporation Insulation displacement connector assembly and system adapted for surface mounting on printed circuitboard and method of using the same
US20090117774A1 (en) * 2006-11-10 2009-05-07 Janos Legrady Surface mount crimp terminal and method of crimping an insulated conductor therein

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551299A (en) * 1943-10-06 1951-05-01 Aircraft Marine Prod Inc Electrical connector and method of making the same
US2501870A (en) * 1945-11-24 1950-03-28 Western Electric Co Terminal for electrical conductors
US2550578A (en) * 1946-05-29 1951-04-24 North Electric Mfg Company Relay construction
US2557126A (en) * 1946-06-27 1951-06-19 Aircraft Marine Prod Inc Electrical connector
US2515105A (en) * 1947-08-08 1950-07-11 Allied Electric Products Inc Method of making an electrical connection to an insulated wire
US2574608A (en) * 1947-08-13 1951-11-13 Andrew H Ziph Electrical junction box connector
US2704358A (en) * 1947-10-24 1955-03-15 Aircraft Marine Prod Inc Electrical connection and method
US2692422A (en) * 1948-03-10 1954-10-26 Aircraft Marine Prod Inc Method of applying connectors
US2680235A (en) * 1949-09-16 1954-06-01 Aircraft Marine Prod Inc Electrical connector
US2663139A (en) * 1949-10-31 1953-12-22 Gibbs Mfg And Res Corp Pallet lever construction
US2688133A (en) * 1950-12-29 1954-09-07 Aircraft Marine Prod Inc Applicator for connectors and the like
US2668950A (en) * 1951-04-09 1954-02-16 Western Electric Co Apparatus for applying terminals to electrical conductor wires
US2768378A (en) * 1951-04-14 1956-10-30 Zwick Nicholas Machines for attaching terminals to cords or the like
US2630468A (en) * 1951-04-30 1953-03-03 Maxwell H Lewis Terminal connector for electrical conductors
US2818632A (en) * 1952-09-24 1958-01-07 Amp Inc Electrical connection and method
US2786263A (en) * 1953-01-07 1957-03-26 Nat Products Corp Apparatus for assembling sheathed cable connectors
US2789278A (en) * 1953-05-01 1957-04-16 Controls Company Electrical connection and method of making the same
US2783442A (en) * 1953-08-03 1957-02-26 Thomas & Betts Corp Method of and apparatus for forming electric terminals
US2798895A (en) * 1954-06-18 1957-07-09 Ray O Vac Co Point contact battery
US2880259A (en) * 1954-06-18 1959-03-31 Electric Storage Battery Co Primary battery
US2802194A (en) * 1954-10-28 1957-08-06 Gen Motors Corp Terminal
US2927150A (en) * 1955-12-20 1960-03-01 Aircraft Marine Prod Inc Insulation piercing crimp
US2869100A (en) * 1956-11-23 1959-01-13 Mayfair Molded Products Corp Anode connector
US3162501A (en) * 1960-01-21 1964-12-22 Amp Inc Electrical connector
US4018499A (en) * 1973-12-18 1977-04-19 Amp Incorporated Contact for insulated wire
US4136922A (en) * 1975-07-23 1979-01-30 Essex International, Inc. Ignition cable terminals
US5207596A (en) * 1992-03-19 1993-05-04 Tandy Corporation Solderless coaxial wire connector and method for attachment
US5480325A (en) * 1994-05-27 1996-01-02 Tandy Corporation Coaxial connector plug and method for assembly
US6206727B1 (en) * 1998-11-27 2001-03-27 Sumitomo Wiring Systems, Ltd. Terminal and crimping method
DE102004049575A1 (en) 2004-10-12 2006-04-20 Sick Ag Electrical terminal for connecting conductor cable to PCB, has terminal unit provided for pressing in conductor cable for electrical link of conductor cable, where terminal unit is designed as spike
DE102004049575B4 (en) 2004-10-12 2018-03-08 Sick Ag Electrical connection element and method for connecting a conductor cable
US20080113553A1 (en) * 2006-11-10 2008-05-15 Janos Legrady Surface mount crimp terminal and method of crimping an insulated conductor therein
WO2008060806A2 (en) * 2006-11-10 2008-05-22 Zierick Manufacturing Corp. Surface mount crimp terminal and method of crimping an insulated conductor therein
WO2008060806A3 (en) * 2006-11-10 2008-08-28 Zierick Mfg Corp Surface mount crimp terminal and method of crimping an insulated conductor therein
US20090117774A1 (en) * 2006-11-10 2009-05-07 Janos Legrady Surface mount crimp terminal and method of crimping an insulated conductor therein
US7591666B2 (en) 2006-11-10 2009-09-22 Zierick Manufacturing Corporation Surface mount crimp terminal and method of crimping an insulated conductor therein
EP1921713A1 (en) 2006-11-10 2008-05-14 Zierick Manufacturing Corporation Insulation displacement connector assembly and system adapted for surface mounting on printed circuitboard and method of using the same

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