CH317664A - Protective device for electrically powered machines - Google Patents

Protective device for electrically powered machines

Info

Publication number
CH317664A
CH317664A CH317664DA CH317664A CH 317664 A CH317664 A CH 317664A CH 317664D A CH317664D A CH 317664DA CH 317664 A CH317664 A CH 317664A
Authority
CH
Switzerland
Prior art keywords
protective device
electrically powered
powered machines
machines
electrically
Prior art date
Application number
Other languages
German (de)
Inventor
Henry Maslin Frederick Walter
Original Assignee
Huntley & Palmers Limited
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 Huntley & Palmers Limited filed Critical Huntley & Palmers Limited
Publication of CH317664A publication Critical patent/CH317664A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
CH317664D 1952-12-05 1953-12-04 Protective device for electrically powered machines CH317664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB317664X 1952-12-05

Publications (1)

Publication Number Publication Date
CH317664A true CH317664A (en) 1956-11-30

Family

ID=10328081

Family Applications (1)

Application Number Title Priority Date Filing Date
CH317664D CH317664A (en) 1952-12-05 1953-12-04 Protective device for electrically powered machines

Country Status (2)

Country Link
CH (1) CH317664A (en)
GB (1) GB731714A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8235235B1 (en) 2008-10-24 2012-08-07 Honda Motor Co., Ltd. Limit switch cover with magnetic breakaway

Also Published As

Publication number Publication date
GB731714A (en) 1955-06-15

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