FR933435A - Safety device for control boxes of electric motors, machine tools, etc. - Google Patents

Safety device for control boxes of electric motors, machine tools, etc.

Info

Publication number
FR933435A
FR933435A FR933435DA FR933435A FR 933435 A FR933435 A FR 933435A FR 933435D A FR933435D A FR 933435DA FR 933435 A FR933435 A FR 933435A
Authority
FR
France
Prior art keywords
safety device
electric motors
machine tools
control boxes
boxes
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)
Inventor
Henri Bouvet
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 filed Critical
Application granted granted Critical
Publication of FR933435A publication Critical patent/FR933435A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/287—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member wherein the operating part is made inaccessible or more difficult to access by a lid, cover or guard, e.g. lockable covers
FR933435D 1946-09-13 1946-09-13 Safety device for control boxes of electric motors, machine tools, etc. Expired FR933435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR933435T 1946-09-13

Publications (1)

Publication Number Publication Date
FR933435A true FR933435A (en) 1948-04-20

Family

ID=9455524

Family Applications (1)

Application Number Title Priority Date Filing Date
FR933435D Expired FR933435A (en) 1946-09-13 1946-09-13 Safety device for control boxes of electric motors, machine tools, etc.

Country Status (1)

Country Link
FR (1) FR933435A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085140A (en) * 1959-02-24 1963-04-09 Robertshaw Fulton Controls Co Encapsulated switch
US4908484A (en) * 1988-08-16 1990-03-13 Gunoff Gordon E L Doorbell activating device for pets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085140A (en) * 1959-02-24 1963-04-09 Robertshaw Fulton Controls Co Encapsulated switch
US4908484A (en) * 1988-08-16 1990-03-13 Gunoff Gordon E L Doorbell activating device for pets

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