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FR511543A - Perfectionnements aux commutateurs à contacts multiples - Google Patents

Perfectionnements aux commutateurs à contacts multiples

Info

Publication number
FR511543A
FR511543A FR511543A FR511543DA FR511543A FR 511543 A FR511543 A FR 511543A FR 511543 A FR511543 A FR 511543A FR 511543D A FR511543D A FR 511543DA FR 511543 A FR511543 A FR 511543A
Authority
FR
France
Prior art keywords
contact switch
enhancements
switch enhancements
contact
switch
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
FR511543A
Other languages
English (en)
Inventor
Hans Jacob Norballe
James Liddle Lawson
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
Application granted granted Critical
Publication of FR511543A publication Critical patent/FR511543A/fr
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
FR511543A 1913-10-13 1920-03-13 Perfectionnements aux commutateurs à contacts multiples Expired FR511543A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB511543X 1913-10-13

Publications (1)

Publication Number Publication Date
FR511543A true FR511543A (fr) 1920-12-28

Family

ID=10458865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR511543A Expired FR511543A (fr) 1913-10-13 1920-03-13 Perfectionnements aux commutateurs à contacts multiples

Country Status (2)

Country Link
DE (1) DE342818C (fr)
FR (1) FR511543A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953630C (de) * 1952-05-14 1956-12-06 Robert Doll Dipl Ing Einrichtung zur Drehzahlverstellung bzw. -regelung bei Universalmotoren, Ein- und Mehrphasenasynchronmotoren

Also Published As

Publication number Publication date
DE342818C (de) 1921-10-24

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