GB539996A - Improvements in and relating to facing elements or electrical contact plates - Google Patents

Improvements in and relating to facing elements or electrical contact plates

Info

Publication number
GB539996A
GB539996A GB13849/40A GB1384940A GB539996A GB 539996 A GB539996 A GB 539996A GB 13849/40 A GB13849/40 A GB 13849/40A GB 1384940 A GB1384940 A GB 1384940A GB 539996 A GB539996 A GB 539996A
Authority
GB
United Kingdom
Prior art keywords
graphite
contact
silver
carbon
per cent
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
Application number
GB13849/40A
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.)
Mallory Metallurgical Products Ltd
Original Assignee
Mallory Metallurgical Products Ltd
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 Mallory Metallurgical Products Ltd filed Critical Mallory Metallurgical Products Ltd
Publication of GB539996A publication Critical patent/GB539996A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/027—Composite material containing carbon particles or fibres
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating
    • Y10S384/902—Porous member
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/929—Electrical contact feature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S76/00—Metal tools and implements, making
    • Y10S76/11—Tungsten and tungsten carbide
    • 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
    • Y10T29/49206—Contact or terminal manufacturing by powder metallurgy
    • 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
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y10T29/49812—Temporary protective coating, impregnation, or cast layer
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Mechanical Operated Clutches (AREA)
  • Braking Arrangements (AREA)

Abstract

539,996. Forming coherent masses from powdered metals. MALLORY METALLURGICAL PRODUCTS, Ltd. Sept. 4, 1940, No. 13849. Convention date, March 19, 1940. [Class 82 (i)] [Also in Groups XXXVII, XXIV and XXXIV] A contact plate or disc or other facing element such as a clutch facing or a bearing is composed of a pressed and sintered mixture of one or more metal powders and carbon, graphite or carbonaceous material, one face being substantially free from the carbon. Fig. 6 shows a contact disc, the lower face of which is free from carbon and may therefore be readily attached to a backing member. The upper face constitutes the contact surface. Metal powders consisting of one or more of the following metals may be used for the composition:-silver, copper, nickel, cadmium, tungsten, molybdenum. One specified composition is 95 per cent. silver and 5 per cent. graphite. The contact is made by mixing the materials, pressing them into the desired-shape and then heating in an oxidizing atmosphere with one surface protected from the atmosphere by resting on a graphite slab or by other means. At the exposed surface, the graphite combines with the oxygen and escapes as a gas, leaving a surface entirely of silver.
GB13849/40A 1940-03-19 1940-09-04 Improvements in and relating to facing elements or electrical contact plates Expired GB539996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US324742A US2319240A (en) 1940-03-19 1940-03-19 Electric contact and the like

Publications (1)

Publication Number Publication Date
GB539996A true GB539996A (en) 1941-10-01

Family

ID=23264902

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13849/40A Expired GB539996A (en) 1940-03-19 1940-09-04 Improvements in and relating to facing elements or electrical contact plates

Country Status (2)

Country Link
US (1) US2319240A (en)
GB (1) GB539996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217347A (en) * 1988-04-08 1989-10-25 T & N Technology Ltd Bearing overlay coating of metal substrates

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733968A (en) * 1956-02-07 Wear resistant bushing or liner for the plunger
US2464517A (en) * 1943-05-13 1949-03-15 Callite Tungsten Corp Method of making porous metallic bodies
US2450339A (en) * 1943-09-17 1948-09-28 Mallory & Co Inc P R Method of making porous metal filters
US2436205A (en) * 1946-12-20 1948-02-17 Gen Electric Resistance welding electrode
US2652624A (en) * 1948-08-28 1953-09-22 Wilson H A Co Method of producing composite metal
US2652621A (en) * 1949-02-25 1953-09-22 Gen Electric Method of making a unitary thermionic filament structure
US2621123A (en) * 1949-04-23 1952-12-09 Gibson Electric Company Method of sintering silver contact material
US2634342A (en) * 1950-02-18 1953-04-07 Raymond Rosen Engineering Prod Commutator
US2723444A (en) * 1951-05-16 1955-11-15 Gibson Electric Company Contacts
US2790100A (en) * 1951-06-06 1957-04-23 James V Caputo Electrical brush
US2799081A (en) * 1952-09-24 1957-07-16 Gibson Electric Company Electrical contacts
GB743709A (en) * 1952-11-04 1956-01-25 Muirhead & Co Ltd Improvements in or relating to rotary electric stud switches
US2984894A (en) * 1956-11-30 1961-05-23 Engelhard Ind Inc Composite material
US2876097A (en) * 1957-03-28 1959-03-03 Purolator Products Inc Aluminum filters and method of production
US3086285A (en) * 1957-11-05 1963-04-23 Engelhard Ind Inc Electrical contacts
US3428374A (en) * 1966-04-13 1969-02-18 Kaman Corp Self-lubricating bearing
GB1259454A (en) * 1968-05-23 1972-01-05
DE2221630B2 (en) * 1972-04-28 1979-05-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Contact system for high-voltage circuit breakers
JPS5816003B2 (en) * 1975-08-25 1983-03-29 株式会社日立製作所 Manufacturing method of composite collector
DE3108502A1 (en) * 1979-11-28 1982-09-30 Fa. Leopold Kostal, 5880 Lüdenscheid Electrical contact-making device and a method which is suitable for producing the same
DE3213265A1 (en) * 1981-04-10 1982-11-18 Sumitomo Electric Industries, Ltd., Osaka ELECTRICAL CONTACT MATERIAL
US5141702A (en) * 1990-03-13 1992-08-25 Olin Corporation Method of making coated electrical connectors
DE19503184C1 (en) * 1995-02-01 1996-05-02 Degussa Ag-based material for electrical contacts with improved erosion characteristics and resistant to welding
JP4512318B2 (en) * 2003-02-04 2010-07-28 日立化成工業株式会社 Laminated brush

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217347A (en) * 1988-04-08 1989-10-25 T & N Technology Ltd Bearing overlay coating of metal substrates
GB2217347B (en) * 1988-04-08 1992-12-02 T & N Technology Ltd Improvements in or relating to the coating of metal substrates

Also Published As

Publication number Publication date
US2319240A (en) 1943-05-18

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