FR725756A - Control device for abrupt opening and closing of knife switches - Google Patents

Control device for abrupt opening and closing of knife switches

Info

Publication number
FR725756A
FR725756A FR725756DA FR725756A FR 725756 A FR725756 A FR 725756A FR 725756D A FR725756D A FR 725756DA FR 725756 A FR725756 A FR 725756A
Authority
FR
France
Prior art keywords
closing
control device
knife switches
abrupt opening
abrupt
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
Other languages
French (fr)
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.)
BRESSON ET CIE
Original Assignee
BRESSON ET CIE
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 BRESSON ET CIE filed Critical BRESSON ET CIE
Application granted granted Critical
Publication of FR725756A publication Critical patent/FR725756A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action
    • H01H21/42—Driving mechanisms having snap action produced by compression or extension of coil spring
FR725756D 1930-12-31 1930-12-31 Control device for abrupt opening and closing of knife switches Expired FR725756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR725756T 1930-12-31

Publications (1)

Publication Number Publication Date
FR725756A true FR725756A (en) 1932-05-18

Family

ID=9110257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR725756D Expired FR725756A (en) 1930-12-31 1930-12-31 Control device for abrupt opening and closing of knife switches

Country Status (1)

Country Link
FR (1) FR725756A (en)

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