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Electric contact device

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Publication number
US1390607A
US1390607A US34395019A US1390607A US 1390607 A US1390607 A US 1390607A US 34395019 A US34395019 A US 34395019A US 1390607 A US1390607 A US 1390607A
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US
Grant status
Grant
Patent type
Prior art keywords
contact
member
electric
portion
central
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
Inventor
Clyde C Farmer
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake 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
Grant date

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/02Contact members
    • H01R13/22Contacts for co-operating by abutting
    • H01R13/24Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61GCOUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00Couplings for special purposes not otherwise provided for
    • B61G5/06Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
    • B61G5/10Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables

Description

C. C. FARMER.

ELECTRIC CONTACT DEVICE. AEPLICATION FILED DEC. 10; 1919.

1,390,607. Patented Sep 13, 1921.

INVEN'i'OR C. LY DE 0. FARMER ATTORNEY UNITED STAT s PATENTAOFF'ICEQ CLYDE c. FARMER, or EDGEWOOD, PENNSYLVANIA, Assrenon o The wns'rme- I HOUSE AIR BRAKE COMPANY, or WILMERDING, PENNSYLVANIA, A coarorm- TION OF PENNSYLVANIA.

ELECTRIC CONTACT DEVICE.

Specification of Letters Patent.

Patented Sept.'13, 1921.

Application filed December 10, 1919. Serial No. 343,950.

a corresponding contact and in which a rela-' tive movement of the contactfaces is produced as the contacts engage, so that the engaging faces are ma1nta1ned clean and bright. I

An electric train wire coupll g having contacts of the abovecharacter 1s dlsclosed in a prior Patent, No. 1,290,066, of T. R.

Brown, dated January 7, 1919, and one objectof my invention is to provide an improved contact of the abovetype.

WVhere there is relative movement of butt,

be suflicient wear, so that only the central portion of the contact will actually engage the corresponding contact. with the result that the conductivity of the contact is reduced.

This wear also tends to prevent the rubbing action at the'periphery of the contact which is necessary to maintain the contact surface in the desired clean and bright con dition.

Furthermore, particles of dirt tend to lodge at the central portion of the contact and thus prevent effective engagement of the contacts. I

Another object of my inventionds to obviate the above difficulty by eliminating the bearing contact at the central portion of the contact.

In the accompanying drawing; Figure 1 is a sectional view of. counterpart contacts for an electric train line coupling, in engagement, .and embodying my invention; and

Fig. 2 an end view of one of the contacts.

As shown in the drawing, the reference numeral 1 represents the ,coupler head of a train line coupling and within said head are mounted one or more butt contact members 2. 1

The ,rear portion of each member 2 is provided with screw threads 3 of very coarse pitch adapted to engagecorresponding grooves in a nut 4, the pitch being such that 7 pressure applied to the contact face of the member will cause the same to rotate in the nut 4. I

A coil spring 5 acts through acollar 6 on the member 2 andtends to maintain said member extended, as shown'in the drawing. According to my invention, ,the central portion of the meeting face of the contact member 2 is counter-bored out, as shown at 7, so that there will be ,no bearing contact at the central portion o'f'the contact memben,

members 2 are forced rearwardly and rotate,

through the engagement of the screw threads 3 in the grooves of the nut 4, and the meeting faces of corresponding contact members 2 rub on each other, so as to maintain-the W contact surfaces bright and clean.

Having now described my invention,.what

I claim as new, and desire tosecure by Letters Patent, is

1- A butt contact member for an electric train line couplinghaving means for rotating the member upon engagement with a counterpart contact member and having a recess at the central portion of the contact face removed. 7 p 7 2. In an electric train line coupling, the

combination with a coupler head, of a butt" contact member mounted in,said head and adapted to be depressed by engagement with thecoming together of said contact members for producing a relative rotative movement between the coacting faces of said contact members, the central portion of the meeting face of the contact member'being cut away.

In testimony whereof I have hereunto set I my hand.

CLYDE c. FARMER.

It is hereby certified that in Letters Patent No. 1,390,607, granted September 13,

1921, upon the application of Clyde 0. Farmer, of Edgewood, Pennsylvania, for an improvement in Electric Contact Devices, an error appears in the printed specification requiring correction as follows: Page 1, line 91, claim 1, strike out the Word removed; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 22d day of November, A. D., 1921.

WM. A. KINNAN,

Acting Commissioner of Patents.

[SEAL]

US1390607A 1919-12-10 1919-12-10 Electric contact device Expired - Lifetime US1390607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1390607A US1390607A (en) 1919-12-10 1919-12-10 Electric contact device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1390607A US1390607A (en) 1919-12-10 1919-12-10 Electric contact device
GB2524820A GB155230A (en) 1919-12-10 1920-09-01 Improvements relating to electric contact devices
FR527223A FR527223A (en) 1919-12-10 1920-11-13 Improvements to the electrical contacts

Publications (1)

Publication Number Publication Date
US1390607A true US1390607A (en) 1921-09-13

Family

ID=23348363

Family Applications (1)

Application Number Title Priority Date Filing Date
US1390607A Expired - Lifetime US1390607A (en) 1919-12-10 1919-12-10 Electric contact device

Country Status (3)

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US (1) US1390607A (en)
FR (1) FR527223A (en)
GB (1) GB155230A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274534A (en) * 1963-12-02 1966-09-20 Gen Dynamics Corp Electrical connector
US3308415A (en) * 1964-11-17 1967-03-07 Milton L Cramer Self-adjusting three-prong electric plug adaptable for either two or three prong electric sockets
US3378810A (en) * 1966-05-13 1968-04-16 Amphenol Corp Self-cleaning electrical connector
US3380012A (en) * 1966-03-03 1968-04-23 Hughes Aircraft Co Butt type electrical contact
US4518213A (en) * 1983-05-31 1985-05-21 Allied Corporation One piece hermaphroditic contact for an electrical connector and a method of making the contact
US4743201A (en) * 1987-05-08 1988-05-10 General Signal Corporation Moveable electrical contact plunger
US4944357A (en) * 1989-04-27 1990-07-31 Caterpillar Industrial Inc. Power transferring arrangement
US5052484A (en) * 1989-08-10 1991-10-01 Compagnie Generale De Establissements Michelin Electrical connector and contact assembly for vehicles
US5066905A (en) * 1988-11-14 1991-11-19 Baton Labs, Inc. Battery cable assembly with in-line switch
US5899753A (en) * 1997-04-03 1999-05-04 Raytheon Company Spring-loaded ball contact connector
US6423902B1 (en) * 1998-03-12 2002-07-23 Auto Kabel Managementgesellschaft Electric cable
EP1753089A2 (en) * 2005-08-10 2007-02-14 era-contact GmbH Connector assembly for building and separating at least an electrical connection with a supplementary connector assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374041A (en) * 1967-05-10 1968-03-19 Golden C. Davis Carrier for disk records
US4872851A (en) * 1989-02-27 1989-10-10 International Business Machines Corp. Electrical connector with torsional contacts

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274534A (en) * 1963-12-02 1966-09-20 Gen Dynamics Corp Electrical connector
US3308415A (en) * 1964-11-17 1967-03-07 Milton L Cramer Self-adjusting three-prong electric plug adaptable for either two or three prong electric sockets
US3380012A (en) * 1966-03-03 1968-04-23 Hughes Aircraft Co Butt type electrical contact
US3378810A (en) * 1966-05-13 1968-04-16 Amphenol Corp Self-cleaning electrical connector
US4518213A (en) * 1983-05-31 1985-05-21 Allied Corporation One piece hermaphroditic contact for an electrical connector and a method of making the contact
US4743201A (en) * 1987-05-08 1988-05-10 General Signal Corporation Moveable electrical contact plunger
US5066905A (en) * 1988-11-14 1991-11-19 Baton Labs, Inc. Battery cable assembly with in-line switch
US4944357A (en) * 1989-04-27 1990-07-31 Caterpillar Industrial Inc. Power transferring arrangement
US5052484A (en) * 1989-08-10 1991-10-01 Compagnie Generale De Establissements Michelin Electrical connector and contact assembly for vehicles
US5899753A (en) * 1997-04-03 1999-05-04 Raytheon Company Spring-loaded ball contact connector
US6423902B1 (en) * 1998-03-12 2002-07-23 Auto Kabel Managementgesellschaft Electric cable
EP1753089A2 (en) * 2005-08-10 2007-02-14 era-contact GmbH Connector assembly for building and separating at least an electrical connection with a supplementary connector assembly
EP1753089A3 (en) * 2005-08-10 2007-03-14 era-contact GmbH Connector assembly for building and separating at least an electrical connection with a supplementary connector assembly

Also Published As

Publication number Publication date Type
FR527223A (en) 1921-10-22 grant
GB155230A (en) 1921-01-20 application

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