US2477139A - Conducting bearing - Google Patents

Conducting bearing Download PDF

Info

Publication number
US2477139A
US2477139A US529516A US52951644A US2477139A US 2477139 A US2477139 A US 2477139A US 529516 A US529516 A US 529516A US 52951644 A US52951644 A US 52951644A US 2477139 A US2477139 A US 2477139A
Authority
US
United States
Prior art keywords
gold
copper
bearing
plated
layer
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
US529516A
Inventor
Charles C Patton
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.)
AT&T Corp
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 US529516A priority Critical patent/US2477139A/en
Application granted granted Critical
Publication of US2477139A publication Critical patent/US2477139A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/002—Conductive elements, e.g. to prevent static electricity
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/30—Electric properties; Magnetic properties
    • F16C2202/32—Conductivity
    • 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
    • Y10S384/912—Metallic
    • 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
    • Y10S428/9335—Product by special process
    • Y10S428/941—Solid state alloying, e.g. diffusion, to disappearance of an original 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
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12889—Au-base component
    • 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
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component

Definitions

  • the bearing surface of one of the relatively rotatable elements is provided with a gold plating and the other of the bearing surfaces is gold plated on copper, which, in turn, is applied on a base metal and wherein the copper-gold-base metal is heattreated to eiect a partial alloying of the copper and gold, thereby to present a, hard gold surface for engagement with the soft gold surface on the other bearing element.
  • Fig, 1 is a side elevational View on a greatly enlarged scale, partly in section, of a pair of bearing members mounted in telescoping relation and having bearing surfaces formed in accordy the invention, these two members have been shown as two tubular relatively rotatable elements, designated generally by the numerals 3 and 4.
  • the brass surface may be plated with a mtal of high conductivity, such as gold, which is applied thereto in a thin coating 1.
  • the outer surface of the element 6, which is to bear in and be electrically conductive with respect to the element 3, has, in accordance with the present invention, a plating 8 of copper applied thereto by any suitable method, for example, by electroplating it and, thereafter, the copper plate 8 has a plating 9 of gold applied to it to bear against the plating 1 of gold on the brass tube 5.
  • the gold plated surface 1 of the element 3 may be used in the same condition that it attains when it is plated thereon. In other words, the plating l of gold will be relatively soft.
  • the element 3 with the plating 8 of copper and 9 of gold thereon is heattreated to effect an interalloying or penetration of copper into the gold and the gold into the copper, thus to harden the outer surface of the gold.
  • the steel tube after it has been properly machined, may be plated with approximately .005" of copper and upon the copper there may be plated .002 of gold. After the copper and gold in superposed relation have been plated onto the spect to the plain gold-plated brass tube 3, the
  • a frictional bearing comprising a metal foundation having a copper surface, a gold plated coating over the copper surface and lnteralloyed therewith, and a irictionai member having a base metal foundation provided with a gold plated friction surface.
  • a bearing member having a pure gold bearing surface, and a bearing member having a surface coating in engagement with the pure gold bearing surface, said surface coating being harder than said' pure gold bearing surface and comprising a layer of copper and a layer of gold superposed on said layer of copper and interdliused therewith.
  • a bearing member having a gold bearing surface, and a 'nearing member comprising a hard base metal, a layer of copper on the base metal, and a layer of gold on and interpenetrated with the layer oi' copper.
  • a bearing member having a pure gold bearing surface and a bearing member comprising a relatively hard base metal, a layer oi copper plated on said base metal, n

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)

Description

July 269 B949 c. c. PATTON CONDUCTING BEARING Filed April 4, 1944 INVENTOR. C16. P4770 TTR/Vfy Patented July 206, 1949 coNnUc'riNG BEARING Charles C. Patton, Chicago, Ill., assignor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application April 4, 1944, serial No. 529,516
4 Claims. l
same time provide as frictionless a contact as possible between the elements, the bearing surface of one of the relatively rotatable elements is provided with a gold plating and the other of the bearing surfaces is gold plated on copper, which, in turn, is applied on a base metal and wherein the copper-gold-base metal is heattreated to eiect a partial alloying of the copper and gold, thereby to present a, hard gold surface for engagement with the soft gold surface on the other bearing element.
A complete understanding of the invention may be had by reference to the following detailed descriptionwhen considered in conjunction with the accompanying drawing, wherein Fig, 1 is a side elevational View on a greatly enlarged scale, partly in section, of a pair of bearing members mounted in telescoping relation and having bearing surfaces formed in accordy the invention, these two members have been shown as two tubular relatively rotatable elements, designated generally by the numerals 3 and 4. In order to increase the degree of conductivity between the two members 3 and 4, which may comprise bases 5 and 6, respectively, made of bra-ss and steel, the brass surface may be plated with a mtal of high conductivity, such as gold, which is applied thereto in a thin coating 1. The outer surface of the element 6, which is to bear in and be electrically conductive with respect to the element 3, has, in accordance with the present invention, a plating 8 of copper applied thereto by any suitable method, for example, by electroplating it and, thereafter, the copper plate 8 has a plating 9 of gold applied to it to bear against the plating 1 of gold on the brass tube 5. The gold plated surface 1 of the element 3 may be used in the same condition that it attains when it is plated thereon. In other words, the plating l of gold will be relatively soft. However, in order to prevent the plating 9 of gold on the inner element 4 from seizing when the elements 3 and 4 are moved relative one to another, the element 3, with the plating 8 of copper and 9 of gold thereon, is heattreated to effect an interalloying or penetration of copper into the gold and the gold into the copper, thus to harden the outer surface of the gold.
In the preferred embodiment of the invention, the steel tube, after it has been properly machined, may be plated with approximately .005" of copper and upon the copper there may be plated .002 of gold. After the copper and gold in superposed relation have been plated onto the spect to the plain gold-plated brass tube 3, the
bearing surface on the tube or element 4 is quite hard and when the two elements are moved with respect one to another, the friction between them is quite low. The migration or diiusion of the gold into the copper and copper into the gold during the heat treatment sometimes results in the formation of a visible copper scale on the outer surface of the gold, indicating that some of the copper travels completely through the plating of gold. IWhen this occurs, the copper scale lmay be removed by dipping the bearing in a mild solution of nitric acid. In this manner, a friction bearing is provided which has substantially the same conductivity across its bearing surface as would be provided by two soft gold surfaces in engagement with one another, but has none of the tendency of two soft gold surfaces to grab or seize when they are moved with respect to another.
What is claimed is:
1. A frictional bearing comprising a metal foundation having a copper surface, a gold plated coating over the copper surface and lnteralloyed therewith, and a irictionai member having a base metal foundation provided with a gold plated friction surface.
2. In an electrically conductive corrosion resistant low friction bearing, a bearing member having a pure gold bearing surface, and a bearing member having a surface coating in engagement with the pure gold bearing surface, said surface coating being harder than said' pure gold bearing surface and comprising a layer of copper and a layer of gold superposed on said layer of copper and interdliused therewith.
3. In an electrically conductive corrosion resistant low friction bearing, a bearing member having a gold bearing surface, and a 'nearing member comprising a hard base metal, a layer of copper on the base metal, and a layer of gold on and interpenetrated with the layer oi' copper. 20
4. In an electrically conductive corrosion resistant low friction bearing, a bearing member having a pure gold bearing surface, and a bearing member comprising a relatively hard base metal, a layer oi copper plated on said base metal, n
and a layer of gold plated on and partially interalloyed with said layer of copper.
CHARLES C. PATTON.
REFERENCES CITED The following references are of record in tl'ie le of this patent:
UNITED STATES PATENTS Number Name Date 376,900 Morell Jan. 24, 1888 1,800,961 Payne Sept. 21, 1926 1,823,450 Helmond Sept. 15, 1931 2,145,460 Ryder Jan. 3l, 1939 2,203,411 Green June 4, 1940 2,241,789 Queneau May 13, 1941 2,266,320 Hobbs Dec. 16, 1941 2,283,219 McCullough May 19, 1942 2,297,385 Bierdermann Sept. 29, 1942 2,316,119 Bagley Apr. 6, 1943 FOREIGN PATENTS Number Country Date 441,812 Great Britain Jan. 27, 1936
US529516A 1944-04-04 1944-04-04 Conducting bearing Expired - Lifetime US2477139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US529516A US2477139A (en) 1944-04-04 1944-04-04 Conducting bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529516A US2477139A (en) 1944-04-04 1944-04-04 Conducting bearing

Publications (1)

Publication Number Publication Date
US2477139A true US2477139A (en) 1949-07-26

Family

ID=24110227

Family Applications (1)

Application Number Title Priority Date Filing Date
US529516A Expired - Lifetime US2477139A (en) 1944-04-04 1944-04-04 Conducting bearing

Country Status (1)

Country Link
US (1) US2477139A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078548A (en) * 1954-03-29 1963-02-26 Fred L Eubeler Method of making a bearing
US3199189A (en) * 1962-03-29 1965-08-10 Alloys Unltd Inc Gold alloy cladding
US3522974A (en) * 1968-06-20 1970-08-04 Stephanois Rech Mec Friction pair adapted to operate without lubrication
FR2446956A1 (en) * 1978-10-25 1980-08-14 Koyo Seiko Co ANTI-FRICTION BEARING WITH LUBRICATING METAL COMPONENTS, ESPECIALLY FOR VACUUM USE
US4863217A (en) * 1988-06-10 1989-09-05 Fountain Martin L Hairdresser's station
US4932795A (en) * 1988-11-10 1990-06-12 Outboard Marine Corporation Electrically conductive plastic bushings for marine propulsion devices
US20030150717A1 (en) * 2000-05-09 2003-08-14 Michael Gnann Bipolar multi-purpose electrolytic cell for high current loads

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US376900A (en) * 1888-01-24 James f
US1600961A (en) * 1926-04-27 1926-09-21 Clarence Q Payne Means for reducing the sliding friction of contact members
US1823450A (en) * 1929-01-14 1931-09-15 Underwood Elliott Fisher Co Typewriting machine
GB441812A (en) * 1934-05-14 1936-01-27 Bozel Maletra Prod Chimiques Method for obtaining bearing metallic surfaces resistent to wear and to seizure
US2145460A (en) * 1936-11-28 1939-01-31 United Aircraft Corp Method of forming bearings
US2203411A (en) * 1937-03-01 1940-06-04 Duncan Electric Mfg Co Pivot for watt-hour disks and the like
US2241789A (en) * 1938-05-27 1941-05-13 Int Nickel Co Bearings and method of producing the same
US2266320A (en) * 1938-08-02 1941-12-16 United Aircraft Corp Antifriction bearing
US2283219A (en) * 1939-11-24 1942-05-19 Bohn Aluminium & Brass Corp Bearing
US2297385A (en) * 1939-02-03 1942-09-29 Biedermann Felix Method of producing compound cast bearings
US2316119A (en) * 1939-08-14 1943-04-06 Electro Bearing Company Bearing

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US376900A (en) * 1888-01-24 James f
US1600961A (en) * 1926-04-27 1926-09-21 Clarence Q Payne Means for reducing the sliding friction of contact members
US1823450A (en) * 1929-01-14 1931-09-15 Underwood Elliott Fisher Co Typewriting machine
GB441812A (en) * 1934-05-14 1936-01-27 Bozel Maletra Prod Chimiques Method for obtaining bearing metallic surfaces resistent to wear and to seizure
US2145460A (en) * 1936-11-28 1939-01-31 United Aircraft Corp Method of forming bearings
US2203411A (en) * 1937-03-01 1940-06-04 Duncan Electric Mfg Co Pivot for watt-hour disks and the like
US2241789A (en) * 1938-05-27 1941-05-13 Int Nickel Co Bearings and method of producing the same
US2266320A (en) * 1938-08-02 1941-12-16 United Aircraft Corp Antifriction bearing
US2297385A (en) * 1939-02-03 1942-09-29 Biedermann Felix Method of producing compound cast bearings
US2316119A (en) * 1939-08-14 1943-04-06 Electro Bearing Company Bearing
US2283219A (en) * 1939-11-24 1942-05-19 Bohn Aluminium & Brass Corp Bearing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078548A (en) * 1954-03-29 1963-02-26 Fred L Eubeler Method of making a bearing
US3199189A (en) * 1962-03-29 1965-08-10 Alloys Unltd Inc Gold alloy cladding
US3522974A (en) * 1968-06-20 1970-08-04 Stephanois Rech Mec Friction pair adapted to operate without lubrication
FR2446956A1 (en) * 1978-10-25 1980-08-14 Koyo Seiko Co ANTI-FRICTION BEARING WITH LUBRICATING METAL COMPONENTS, ESPECIALLY FOR VACUUM USE
US4293171A (en) * 1978-10-25 1981-10-06 Koyo Seiko Company Limited Anti-friction bearing
US4863217A (en) * 1988-06-10 1989-09-05 Fountain Martin L Hairdresser's station
US4932795A (en) * 1988-11-10 1990-06-12 Outboard Marine Corporation Electrically conductive plastic bushings for marine propulsion devices
US20030150717A1 (en) * 2000-05-09 2003-08-14 Michael Gnann Bipolar multi-purpose electrolytic cell for high current loads
US7018516B2 (en) * 2000-05-09 2006-03-28 Peroxid-Chemie Gmbh & Co. Kg Bipolar multi-purpose electrolytic cell for high current loads

Similar Documents

Publication Publication Date Title
US2477139A (en) Conducting bearing
RU2017125552A (en) Component for clockwork
MY194439A (en) Copper terminal material having excellent insertion/removal properties and method for producing same
ES2041744T3 (en) COPPER COATED STEEL CONDUCTIVE CABLE AND MANUFACTURING PROCEDURE.
US1939467A (en) Method of making bearings
US1661448A (en) Nonseizing article of aluminum and method of producing the same
US2482178A (en) Composite structure for forming a seal with glass
ES427731A1 (en) Method of electroplating tubing prior to terne alloy coating
US2716275A (en) Method of making a connector with hard particle lining
US2765520A (en) Bearing and method of making the same
US1077977A (en) Composite metal.
US2673818A (en) Method of lubricating a metal surface
US2309081A (en) Electrically conductive device
FR2233523A1 (en) Bearings with polyphenylene sulphide coatings - giving improved heat and corrosion resistance at reduced cost
US3115395A (en) High temperature lubricated bearing surface and method of making the same
US2377681A (en) Method of making bearings
US2064086A (en) Bearing
US1924300A (en) Copper oxide rectifier
GB276622A (en) Improvements relating to current rectifying apparatus
US2551413A (en) Method of producing silverthallium-indium alloys
US2770586A (en) Grid bearing and method of making same
US2013868A (en) Electric contact
US2959697A (en) Slip rings
GB2097426A (en) Electro-plating process and products therefrom
GB561446A (en) Improved bearings and the like and methods of making the same