US2450529A - Method of making electrical socket connections - Google Patents

Method of making electrical socket connections Download PDF

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Publication number
US2450529A
US2450529A US573853A US57385345A US2450529A US 2450529 A US2450529 A US 2450529A US 573853 A US573853 A US 573853A US 57385345 A US57385345 A US 57385345A US 2450529 A US2450529 A US 2450529A
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US
United States
Prior art keywords
socket
making electrical
electrical socket
bore
socket connections
Prior art date
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
US573853A
Inventor
Edward A Sprigg
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.)
H H Buggie & Co
Original Assignee
H H Buggie & Co
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 H H Buggie & Co filed Critical H H Buggie & Co
Priority to US573853A priority Critical patent/US2450529A/en
Application granted granted Critical
Publication of US2450529A publication Critical patent/US2450529A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/10—Details of socket shapes
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3916—One-piece
    • Y10T24/3924—Sheet material
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49218—Contact or terminal manufacturing by assembling plural parts with deforming
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49609—Spring making
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49927—Hollow body is axially joined cup or tube
    • Y10T29/49929—Joined to rod

Definitions

  • One of the principal objects of this invention is to provide. an electrical contact socket which lends itself to high production processing at a reasonable cost and which yieldably grips a cooperating contact pin in a manner to reduce the potential drop to a minimum.
  • Another object of this invention is to provide a method of manufacturing the socket composed of a relativley few simple steps capable of being expediently and inexpensively carried out.
  • a further object of this invention is to provide a spring metal socket having axially spaced continuous annular portions and having the portion intermediate the annular portion-s diagonal 1y slotted and twisted to reduce the internal diameter of the bore in the socket sufficiently to enable the intermediate portion of the socket to grip a cooperating contact pin.
  • FIG. 1 is an enlarged side elevation of a socket electrical contactor constructed in accordance with this invention
  • Figure 2 is an enlarged cross-sectional view taken on the line 22 of Figure 1;
  • FIG 3 is an enlarged fragmentary longitudinal sectional view through the socket shown in Figure 1.
  • the electrical contact socket is illustrated in the several figures of the drawing by the reference character I and is preferably formed of spring metal having good electrical conductin characteristics such, for example, as spring brass.
  • the contactor l0 comprises an electrical cable connecting end portion II and a socket portion l2 axially bored to receive a cooperating contactor pin (not shown).
  • the socket portion I2 is provided with axially sp ced continuous annular portions l3 and with an intermediate portion I 4 having slots l5 formed in opposite side walls.
  • the slots [5 extend from one annular portion l3 to the other annular portion and are respectively disposed in planes which cross or extend in diagonal relation to each other. The planes intersect one another in a plane including the axis of the bore in the socket at a point midway between the continuous annular portions 13, as clearly shown in Figure 2 of the drawing.
  • the bore in the socket is drilled or otherwise formed with an internal di- 2 Claims. (Cl. 29-15555) ameter slightly greater than the external diameter of the contact pin to be ultimately engaged in the bore.
  • the opposite side walls of the intermediate portion are then sawed or otherwise cut to form the narrow diagonal slots [5 therethrough. Owing to the relative positions of the slots I5 previously described, it will be noted that they, in efiect, divide the intermediate portion I4 of the socket contact into spaced generally spiral shaped sections integrally connected at opposite ends by the continuous annular portions l3.
  • the contact I! Upon completion of the sawing or cutting operation, the contact I! is clamped in a jig or other suitable holding fixture and the socket end is twisted or turned.
  • the slots [5 are thereby partially or completely closed and the internal diameter of the socket or bore is reduced.
  • a suitable mandrel (not shown) having an external diameter somewhat less than the corresponding diameter of the contact pin to be ultimately engaged in the socket is inserted in the bore prior to twisting or turning the socket.
  • the width of the slots is predetermined to enable the twisting movement required to set the metal of the intermediate portion M to an internal diameter slightly less than the external diameter of the pin to be engaged in the socket or bore.
  • the construction is such that insertion of the appropriate contact pin into the socket imparts a spiral expanding motion to the intermediate portion M of the socket within the elastic limits of the metal so that the pin is firmly gripped by the socket.

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  • Manufacturing Of Electrical Connectors (AREA)

Description

Oct. 5, 1948. E. A. SPRIGG 2,450,529
METHOD OF MAKING ELECTRICAL SOCKET CONN ECIIONS Filed Jan. 22, 1945 INVENTOR.
EDWARD A. SPRIGG ATTORNEYS Patented Oct. 5, 1948 DIETHOD OF MAKING ELECTRICAL SOCKET CONNECTIONS Edward A. Sprigg, Toledo, Ohio, assignor to H.
Buggie & Company, Toledo, Ohio, at corporation of Ohio Application January 22, 1945, Serial No. 573,853
and to a method of producing the socket contact part for electrical connectors.
One of the principal objects of this invention is to provide. an electrical contact socket which lends itself to high production processing at a reasonable cost and which yieldably grips a cooperating contact pin in a manner to reduce the potential drop to a minimum.
Another object of this invention is to provide a method of manufacturing the socket composed of a relativley few simple steps capable of being expediently and inexpensively carried out.
A further object of this invention is to provide a spring metal socket having axially spaced continuous annular portions and having the portion intermediate the annular portion-s diagonal 1y slotted and twisted to reduce the internal diameter of the bore in the socket sufficiently to enable the intermediate portion of the socket to grip a cooperating contact pin.
The foregoing as well as other objects will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawing, wherein:
Figure 1 is an enlarged side elevation of a socket electrical contactor constructed in accordance with this invention;
Figure 2 is an enlarged cross-sectional view taken on the line 22 of Figure 1; and
Figure 3 is an enlarged fragmentary longitudinal sectional view through the socket shown in Figure 1.
The electrical contact socket is illustrated in the several figures of the drawing by the reference character I and is preferably formed of spring metal having good electrical conductin characteristics such, for example, as spring brass. The contactor l0 comprises an electrical cable connecting end portion II and a socket portion l2 axially bored to receive a cooperating contactor pin (not shown).
The socket portion I2 is provided with axially sp ced continuous annular portions l3 and with an intermediate portion I 4 having slots l5 formed in opposite side walls. The slots [5 extend from one annular portion l3 to the other annular portion and are respectively disposed in planes which cross or extend in diagonal relation to each other. The planes intersect one another in a plane including the axis of the bore in the socket at a point midway between the continuous annular portions 13, as clearly shown in Figure 2 of the drawing.
In actual practice, the bore in the socket is drilled or otherwise formed with an internal di- 2 Claims. (Cl. 29-15555) ameter slightly greater than the external diameter of the contact pin to be ultimately engaged in the bore. The opposite side walls of the intermediate portion are then sawed or otherwise cut to form the narrow diagonal slots [5 therethrough. Owing to the relative positions of the slots I5 previously described, it will be noted that they, in efiect, divide the intermediate portion I4 of the socket contact into spaced generally spiral shaped sections integrally connected at opposite ends by the continuous annular portions l3.
Upon completion of the sawing or cutting operation, the contact I!) is clamped in a jig or other suitable holding fixture and the socket end is twisted or turned. The slots [5 are thereby partially or completely closed and the internal diameter of the socket or bore is reduced. In order to avoid deformation of the cylindrical bore during the twisting operation, a suitable mandrel (not shown) having an external diameter somewhat less than the corresponding diameter of the contact pin to be ultimately engaged in the socket is inserted in the bore prior to twisting or turning the socket. In any event, the width of the slots is predetermined to enable the twisting movement required to set the metal of the intermediate portion M to an internal diameter slightly less than the external diameter of the pin to be engaged in the socket or bore. The construction is such that insertion of the appropriate contact pin into the socket imparts a spiral expanding motion to the intermediate portion M of the socket within the elastic limits of the metal so that the pin is firmly gripped by the socket.
What I claim as my invention is:
1. The method of making a spring metal electrical socket connector having a bore comprising cutting opposite sides of the socket to form slots extending in planes diagonally disposed with respect to each other, reducing the internal diameter of the bore by turning one end of the slotted portion of the socket relative to the opposite 2,450,529 3 Yond the elastic limit of the metal to set the Number metal to said reduced diameter. 1,259, 752 EDWARD A. SPRIGG. 2,294,432 2,307,972 REFERENCES CITED 5 2,358,745
The following references are of record in the file of this patent: Number 352,102 UNITED STATES PATENTS 10 414,057
Number Name A Date 708,613 309,029 Lombard Sept. 25, 1888 786,768
4 Name Date Laird Mar. 19, 1918 .Weidner Sept. 1, 1942 Strunk Jan. 12, 1943 Stleglitz 1 Sept. 19-, 1944 FOREIGN PATENTS Country Date Great Britain 1931 Great Britain 1934 France May 4, 1931 France 1935
US573853A 1945-01-22 1945-01-22 Method of making electrical socket connections Expired - Lifetime US2450529A (en)

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US573853A US2450529A (en) 1945-01-22 1945-01-22 Method of making electrical socket connections

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862747A (en) * 1956-07-20 1958-12-02 John J Deliso Socket and rod coupling
US2862745A (en) * 1956-07-20 1958-12-02 Deliso John Socket and rod coupling
US2929046A (en) * 1950-10-20 1960-03-15 Amp Inc Electrical connector
US3008119A (en) * 1955-12-28 1961-11-07 Amp Inc Crimped connection for electrical wire
US3081528A (en) * 1958-05-09 1963-03-19 Arthur W Hanna Method of manufacturing female electrical sockets
US3118740A (en) * 1955-08-25 1964-01-21 Burndy Corp Pin connector and method of manufacturing the same
US3181112A (en) * 1961-11-24 1965-04-27 Curtiss Wright Corp Miniature contact elements of tubular profile for electric couplings of the plug andsocket type
US3314044A (en) * 1964-12-16 1967-04-11 Albert E Powell Female electrical connectors
US3924922A (en) * 1971-04-26 1975-12-09 Herbert A Decenzo Constrictor biased electrical pin and socket type connector
US4296549A (en) * 1978-07-19 1981-10-27 Augat Inc. Method of making a lead socket insert
EP0061587A2 (en) * 1981-03-16 1982-10-06 CONNEI S.p.A. A socket member for an electrical connector and a method for making same
WO1991004598A1 (en) * 1989-09-22 1991-04-04 E.I. Du Pont De Nemours And Company Slotted grounding ferrule
US5326289A (en) * 1993-07-12 1994-07-05 Leisey Donald R Female hyperboloid electrical connector and the method for fabricating same
US6464546B2 (en) * 2000-08-17 2002-10-15 Smiths Group Plc Electrical contacts
US20030068931A1 (en) * 2001-10-05 2003-04-10 Swearingen Dean D. Radially resilient electrical connector and method of making the same
US20150162687A1 (en) * 2013-12-05 2015-06-11 Hypertronics Corporation One piece socket contact
US20210257792A1 (en) * 2020-02-14 2021-08-19 Cardiac Pacemakers, Inc. Contact for a medical connector assembly

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US309029A (en) * 1884-12-09 Sorghum-finisher
US1259752A (en) * 1916-05-11 1918-03-19 Leo B Lincoln Connector.
GB352102A (en) * 1930-04-09 1931-07-09 Charles Reginald Cook Improvements in and relating to electric contacts
FR708613A (en) * 1930-12-31 1931-07-27 Gardy Sa Franc Contact pin for calibrated fuse
GB414057A (en) * 1932-11-25 1934-07-25 Charles Reginald Cook Improvements relating to thermionic valve holders
FR786768A (en) * 1934-05-26 1935-09-09 Elastic cylindrical sleeve for plugs
US2294432A (en) * 1940-08-03 1942-09-01 George E Weidner Electrical connector
US2307972A (en) * 1941-12-22 1943-01-12 Breeze Corp Electrical connector
US2358745A (en) * 1941-02-19 1944-09-19 Frank Adam Electric Co Method of forming solderless connectors

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US309029A (en) * 1884-12-09 Sorghum-finisher
US1259752A (en) * 1916-05-11 1918-03-19 Leo B Lincoln Connector.
GB352102A (en) * 1930-04-09 1931-07-09 Charles Reginald Cook Improvements in and relating to electric contacts
FR708613A (en) * 1930-12-31 1931-07-27 Gardy Sa Franc Contact pin for calibrated fuse
GB414057A (en) * 1932-11-25 1934-07-25 Charles Reginald Cook Improvements relating to thermionic valve holders
FR786768A (en) * 1934-05-26 1935-09-09 Elastic cylindrical sleeve for plugs
US2294432A (en) * 1940-08-03 1942-09-01 George E Weidner Electrical connector
US2358745A (en) * 1941-02-19 1944-09-19 Frank Adam Electric Co Method of forming solderless connectors
US2307972A (en) * 1941-12-22 1943-01-12 Breeze Corp Electrical connector

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929046A (en) * 1950-10-20 1960-03-15 Amp Inc Electrical connector
US3118740A (en) * 1955-08-25 1964-01-21 Burndy Corp Pin connector and method of manufacturing the same
US3008119A (en) * 1955-12-28 1961-11-07 Amp Inc Crimped connection for electrical wire
US2862747A (en) * 1956-07-20 1958-12-02 John J Deliso Socket and rod coupling
US2862745A (en) * 1956-07-20 1958-12-02 Deliso John Socket and rod coupling
US3081528A (en) * 1958-05-09 1963-03-19 Arthur W Hanna Method of manufacturing female electrical sockets
US3181112A (en) * 1961-11-24 1965-04-27 Curtiss Wright Corp Miniature contact elements of tubular profile for electric couplings of the plug andsocket type
US3314044A (en) * 1964-12-16 1967-04-11 Albert E Powell Female electrical connectors
US3924922A (en) * 1971-04-26 1975-12-09 Herbert A Decenzo Constrictor biased electrical pin and socket type connector
US4296549A (en) * 1978-07-19 1981-10-27 Augat Inc. Method of making a lead socket insert
EP0061587A2 (en) * 1981-03-16 1982-10-06 CONNEI S.p.A. A socket member for an electrical connector and a method for making same
EP0061587A3 (en) * 1981-03-16 1983-04-06 Connei S.P.A. A socket member for an electrical connector and a method for making same
US4447108A (en) * 1981-03-16 1984-05-08 Connei S.P.A. Socket member for an electrical connector
WO1991004598A1 (en) * 1989-09-22 1991-04-04 E.I. Du Pont De Nemours And Company Slotted grounding ferrule
US5051543A (en) * 1989-09-22 1991-09-24 E. I. Du Pont De Nemours And Company Slotted grounding ferrule
US5326289A (en) * 1993-07-12 1994-07-05 Leisey Donald R Female hyperboloid electrical connector and the method for fabricating same
US6464546B2 (en) * 2000-08-17 2002-10-15 Smiths Group Plc Electrical contacts
US20030068931A1 (en) * 2001-10-05 2003-04-10 Swearingen Dean D. Radially resilient electrical connector and method of making the same
US6837756B2 (en) * 2001-10-05 2005-01-04 Amphenol Corporation Radially resilient electrical connector and method of making the same
US20150162687A1 (en) * 2013-12-05 2015-06-11 Hypertronics Corporation One piece socket contact
US9362645B2 (en) * 2013-12-05 2016-06-07 Hypertronics Corporation One piece socket contact
US20210257792A1 (en) * 2020-02-14 2021-08-19 Cardiac Pacemakers, Inc. Contact for a medical connector assembly
US11682872B2 (en) * 2020-02-14 2023-06-20 Cardiac Pacemakers, Inc. Contact for a medical connector assembly

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