GB461286A - Improvements in internal wiring switches - Google Patents

Improvements in internal wiring switches

Info

Publication number
GB461286A
GB461286A GB2429335A GB2429335A GB461286A GB 461286 A GB461286 A GB 461286A GB 2429335 A GB2429335 A GB 2429335A GB 2429335 A GB2429335 A GB 2429335A GB 461286 A GB461286 A GB 461286A
Authority
GB
United Kingdom
Prior art keywords
contact
resistance
class
disturbances
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
GB2429335A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2429335A priority Critical patent/GB461286A/en
Priority to FR794504D priority patent/FR794504A/en
Priority to BE414047D priority patent/BE414047A/xx
Publication of GB461286A publication Critical patent/GB461286A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/42—Impedances connected with contacts

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

461,286. Preventing broadcasting disturbances by switches. SCHNEIDER, R., MILFERSTEDT, K., and WALTER, A. Aug. 30, 1935, No. 24293. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 2, 1936.] [Class 38 (v)] To prevent broadcasting disturbances by the making and breaking of a circuit at two contacts 1, 2, an auxiliary contact 5 and a resistance 6 are provided, the contact arm 3 sweeping over the contact 5 and putting the resistance in circuit before it finally leaves the contact 5. Contacts 5 may be arranged on both sides of the contact 2 as shown, and if desired there may be a further contact 7 and resistance 9. In a preferred form, Fig. 4, a piece of high resistance material such as chrome nickel is bent round the fixed contact 2 so as to present two shoulders 11 lying in the plane of the contact 2 and adapted to be engaged by the movable contact 3. Reference has been directed by the Comptroller to Specifications 7934/87, 10606/87, [both in Class 38], and 6408/13, [Class 38 (v)].
GB2429335A 1935-08-30 1935-08-30 Improvements in internal wiring switches Expired GB461286A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2429335A GB461286A (en) 1935-08-30 1935-08-30 Improvements in internal wiring switches
FR794504D FR794504A (en) 1935-08-30 1935-08-31 Light switch
BE414047D BE414047A (en) 1935-08-30 1936-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2429335A GB461286A (en) 1935-08-30 1935-08-30 Improvements in internal wiring switches

Publications (1)

Publication Number Publication Date
GB461286A true GB461286A (en) 1937-02-15

Family

ID=10209396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2429335A Expired GB461286A (en) 1935-08-30 1935-08-30 Improvements in internal wiring switches

Country Status (3)

Country Link
BE (1) BE414047A (en)
FR (1) FR794504A (en)
GB (1) GB461286A (en)

Also Published As

Publication number Publication date
BE414047A (en) 1936-03-31
FR794504A (en) 1936-02-19

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