US1570420A - Electrical contact maker and breaker - Google Patents

Electrical contact maker and breaker Download PDF

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Publication number
US1570420A
US1570420A US721353A US72135324A US1570420A US 1570420 A US1570420 A US 1570420A US 721353 A US721353 A US 721353A US 72135324 A US72135324 A US 72135324A US 1570420 A US1570420 A US 1570420A
Authority
US
United States
Prior art keywords
breaker
chromium
electrical contact
contact maker
maker
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
US721353A
Inventor
Yngve Victor
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.)
MANHATTAN ELECTRICAL SUPPLY CO
MANHATTAN ELECTRICAL SUPPLY COMPANY Inc
Original Assignee
MANHATTAN ELECTRICAL SUPPLY 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 MANHATTAN ELECTRICAL SUPPLY CO filed Critical MANHATTAN ELECTRICAL SUPPLY CO
Priority to US721353A priority Critical patent/US1570420A/en
Application granted granted Critical
Publication of US1570420A publication Critical patent/US1570420A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10S29/00—Metal working
    • Y10S29/012—Method or apparatus with electroplating
    • 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
    • Y10S428/923—Physical dimension
    • Y10S428/924—Composite
    • Y10S428/926—Thickness of individual layer specified
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/934—Electrical process
    • Y10S428/935—Electroplating
    • 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.]
    • 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.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal 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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component

Definitions

  • VICTOR YNG-VE OF SOUTH ORANGE,-NEW JERSEY, ASSIGNOR T MANHATTAN ELEC- TRICAL SUPPLY COMPANY, INCORPORATED,
  • This invention relates to improvements in electrical contact makers and breakers, and more particularly to a new commutator adapted for use in circuits of electrical motors and the like.
  • the contact points of a circuit maker and ln-cakor or the contacting surface of a commutator is covered with a thin coating of metallic chromium.
  • the Working surfaces of the contact points or commutalors of copper, bronze or the like are electroplated with chromium, best results being obtained by using Sargents solution of 245 gr/L chromic acid and 3 g/L chromium sulha-tc. and a current densityof 13.4 amp/sq.
  • GlllOll'lllll'll is exceedingly hard and holds a bright, silver-like lustre almost indefinitely.
  • chromium resists corrosion. Owing: to its resistance to corrosion and its hardness, a chromium surface is preferable, for the present purposes, to a copper surface. While the electrical c0nductivity of chromium is only about onefifth that of copper, this is not an impediment to its use in commutators or the like, because, in accordance with the present invention, the circuit controller is coated with a very thin layer (e. g., .005 of an inch) of a metallic chromium. The relatively high resistance offered by this thin layer is negligible as compared with the advantages obtained from its resistance to wear and corrosion.
  • the drawing illustrates'in vertical crosssection a commutator, the contacting surface of which is electroplated with metallic chromium.
  • a commutator having on its contacting surface an electrolytically deposited lay- June, 1024.

Description

jan. 19 ,1926.
ELECTRICAL CONTACT MAKER AND BREAKER Filed June 20, 1924 may/(Man Commufmor Patented Jan. 19, 1926.
UNITED STATES PATENT OFFICE.
VICTOR YNG-VE, OF SOUTH ORANGE,-NEW JERSEY, ASSIGNOR T MANHATTAN ELEC- TRICAL SUPPLY COMPANY, INCORPORATED,
TION OF MASSACHUSETTS.
OF NEW YORK, N. Y., A CORPORA- ELECTRICALCONTACT MAKER'AN D BREAKER.
Application filed J'une 20,1924. Serial No. 721,353.
To all whom it may concern:
Be it known that I, VICTOR YNGVE, citizen of the United States, residing at South Orange, in the county of Essex and State of New Jersey, United States of America, have invented certain new and useful Improvements in ElectricalOontact Makers and Breakers, of which the following is a specification.
This invention relates to improvements in electrical contact makers and breakers, and more particularly to a new commutator adapted for use in circuits of electrical motors and the like.
1 In accordance with the present invention, the contact points of a circuit maker and ln-cakor or the contacting surface of a commutator, is covered with a thin coating of metallic chromium. Preferably, the Working surfaces of the contact points or commutalors of copper, bronze or the like, are electroplated with chromium, best results being obtained by using Sargents solution of 245 gr/L chromic acid and 3 g/L chromium sulha-tc. and a current densityof 13.4 amp/sq.
dm. (125 amp. sq. ft.), using a chromium anode.
GlllOll'lllll'll is exceedingly hard and holds a bright, silver-like lustre almost indefinitely. l nrthermore, chromium resists corrosion. Owing: to its resistance to corrosion and its hardness, a chromium surface is preferable, for the present purposes, to a copper surface. While the electrical c0nductivity of chromium is only about onefifth that of copper, this is not an impediment to its use in commutators or the like, because, in accordance with the present invention, the circuit controller is coated with a very thin layer (e. g., .005 of an inch) of a metallic chromium. The relatively high resistance offered by this thin layer is negligible as compared with the advantages obtained from its resistance to wear and corrosion.
The drawing illustrates'in vertical crosssection a commutator, the contacting surface of which is electroplated with metallic chromium.
\Vhat I claim is: i
1. .An electrical circuit controller coated with metallic chromium.
2. An electrical circuit maker and breaker, electroplated with a coating of metallic .chromium.
3. An electrical circuit maker and breaker, the contacting surface of which is electroplated with a coating of metallic chromium of a thickness of inch.
4. A commutator having on its contacting surface an electrolytically deposited lay- June, 1024.
. VICTOR YNGVE.
about .005 of an .er of chromium of a thickness of about .005 p
US721353A 1924-06-20 1924-06-20 Electrical contact maker and breaker Expired - Lifetime US1570420A (en)

Priority Applications (1)

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US721353A US1570420A (en) 1924-06-20 1924-06-20 Electrical contact maker and breaker

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US721353A US1570420A (en) 1924-06-20 1924-06-20 Electrical contact maker and breaker

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US1570420A true US1570420A (en) 1926-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949592A (en) * 1951-04-19 1960-08-16 Gen Radio Co Adjustable transformer with stabilized contact track

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949592A (en) * 1951-04-19 1960-08-16 Gen Radio Co Adjustable transformer with stabilized contact track

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