GB642622A - Improvements in and connected with moving contacts of electric switches - Google Patents

Improvements in and connected with moving contacts of electric switches

Info

Publication number
GB642622A
GB642622A GB11332/48A GB1133248A GB642622A GB 642622 A GB642622 A GB 642622A GB 11332/48 A GB11332/48 A GB 11332/48A GB 1133248 A GB1133248 A GB 1133248A GB 642622 A GB642622 A GB 642622A
Authority
GB
United Kingdom
Prior art keywords
contact
slots
stems
carrier
contacts
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
GB11332/48A
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree and Co 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
Priority to BE488398D priority Critical patent/BE488398A/xx
Priority to NL146071D priority patent/NL146071C/xx
Application filed by JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB11332/48A priority patent/GB642622A/en
Priority to US73833A priority patent/US2620416A/en
Priority to FR984257D priority patent/FR984257A/en
Publication of GB642622A publication Critical patent/GB642622A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)

Abstract

642,622. Switch contacts. CRABTREE & CO., Ltd., J. A., BESAG, E., and WINTLE, T. D. G. April 24, 1948, No. 11332. [Class 38(v)] Each contact b of a 3-phase motor starter is composed of sheet copper about 0.018 inch thick thereby providing light weight and avoiding bounce when the silver buttons c engage fixed contacts, Fig. 3 (not shown). Flanges e give the contact rigidity and guide it in a recess a<SP>1</SP> in the movable insulating carrier a. Each contact is resiliently mounted by stems f inserted horizontally through slots i in the carrier, a spring g being thereby compressed between the tail of each stem and the carrier The stems are then rotated through 90 degrees, permitted by holes concentric with the slots i, and inserted through slots k in the contact b. Holes in the contact, concentric with the slots k, permit turning of the stems back to the horizontal and the enlarged stem heads f thus secure the contacts and are prevented from subsequent rotation by horizontal bulges b' formed in the contact. In Fig. 6 (not shown), the ends of the contact are also bent over, the ends serving as abutments for a blade spring taking the place of springs g. Alternatively, the contact may be strengthened by a longitudinal dishing formed centrally thereon.
GB11332/48A 1948-04-24 1948-04-24 Improvements in and connected with moving contacts of electric switches Expired GB642622A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE488398D BE488398A (en) 1948-04-24
NL146071D NL146071C (en) 1948-04-24
GB11332/48A GB642622A (en) 1948-04-24 1948-04-24 Improvements in and connected with moving contacts of electric switches
US73833A US2620416A (en) 1948-04-24 1949-01-31 Moving contact of electric switches
FR984257D FR984257A (en) 1948-04-24 1949-04-06 Movable contacts for electrical switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11332/48A GB642622A (en) 1948-04-24 1948-04-24 Improvements in and connected with moving contacts of electric switches

Publications (1)

Publication Number Publication Date
GB642622A true GB642622A (en) 1950-09-06

Family

ID=9984305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11332/48A Expired GB642622A (en) 1948-04-24 1948-04-24 Improvements in and connected with moving contacts of electric switches

Country Status (5)

Country Link
US (1) US2620416A (en)
BE (1) BE488398A (en)
FR (1) FR984257A (en)
GB (1) GB642622A (en)
NL (1) NL146071C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675448A (en) * 1951-04-07 1954-04-13 Bendix Aviat Corp Electrical apparatus
DE1135989B (en) * 1960-10-14 1962-09-06 Telefunken Patent Switches, especially slide switches with short-circuit contacts for communication devices

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819366A (en) * 1956-05-11 1958-01-07 William Wesley Hicks Thermostatic switch
DE1202879B (en) * 1957-04-24 1965-10-14 Licentia Gmbh Electrical switchgear with U-shaped, bridging contact bracket
BE571173A (en) * 1957-09-16
FR2538037B1 (en) * 1982-12-21 1987-04-17 Paris & Du Rhone COMPOSITE AXIS OF ELECTROMAGNETIC CONTACTOR OF ELECTRIC STARTER

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1362379A (en) * 1920-12-14 Electric switch
US1809368A (en) * 1929-06-10 1931-06-09 Clum Mfg Company Ignition switch, contact carrier and actuator
US2276698A (en) * 1939-09-30 1942-03-17 Westinghouse Electric & Mfg Co Contactor
US2211412A (en) * 1940-01-02 1940-08-13 Filko John Breaker arm for ignition devices
US2359605A (en) * 1941-11-08 1944-10-03 Fed Electric Prod Co Resilient removable contact member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675448A (en) * 1951-04-07 1954-04-13 Bendix Aviat Corp Electrical apparatus
DE1135989B (en) * 1960-10-14 1962-09-06 Telefunken Patent Switches, especially slide switches with short-circuit contacts for communication devices

Also Published As

Publication number Publication date
FR984257A (en) 1951-07-04
BE488398A (en)
US2620416A (en) 1952-12-02
NL146071C (en)

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