GB2318456B - Safety switch - Google Patents

Safety switch

Info

Publication number
GB2318456B
GB2318456B GB9725829A GB9725829A GB2318456B GB 2318456 B GB2318456 B GB 2318456B GB 9725829 A GB9725829 A GB 9725829A GB 9725829 A GB9725829 A GB 9725829A GB 2318456 B GB2318456 B GB 2318456B
Authority
GB
United Kingdom
Prior art keywords
safety switch
safety
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 - Fee Related
Application number
GB9725829A
Other versions
GB9725829D0 (en
GB2318456A (en
Inventor
David William Jones
Paul Reynolds
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.)
Craig and Derricott Ltd
Original Assignee
Craig and Derricott Ltd
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 Craig and Derricott Ltd filed Critical Craig and Derricott Ltd
Priority to GB9725829A priority Critical patent/GB2318456B/en
Publication of GB9725829D0 publication Critical patent/GB9725829D0/en
Publication of GB2318456A publication Critical patent/GB2318456A/en
Application granted granted Critical
Publication of GB2318456B publication Critical patent/GB2318456B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch
    • 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
    • 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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H01H9/223—Defeatable locking means
GB9725829A 1997-12-06 1997-12-06 Safety switch Expired - Fee Related GB2318456B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9725829A GB2318456B (en) 1997-12-06 1997-12-06 Safety switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9725829A GB2318456B (en) 1997-12-06 1997-12-06 Safety switch

Publications (3)

Publication Number Publication Date
GB9725829D0 GB9725829D0 (en) 1998-02-04
GB2318456A GB2318456A (en) 1998-04-22
GB2318456B true GB2318456B (en) 1998-09-23

Family

ID=10823211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9725829A Expired - Fee Related GB2318456B (en) 1997-12-06 1997-12-06 Safety switch

Country Status (1)

Country Link
GB (1) GB2318456B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20051473A1 (en) 2005-07-28 2007-01-29 Coepte S R L LOCKING DEVICE FOR A MANEUVERING GEAR PARTICULARLY FOR THE GROUNDING OF SAFETY LINES OF ELECTRICAL LINES AGAINST THE ABUSIVE OPERATION
CN103400525B (en) * 2013-08-15 2015-05-20 国家电网公司 Overhauling training platform for disconnecting switch

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538092A (en) * 1939-01-14 1941-07-21 Linde Air Prod Co Improvements in methods of deseaming or desurfacing of metal bodies
GB771651A (en) * 1955-08-29 1957-04-03 Anthony Arnejo Switch for controlling the ignition system and starter of a motor vehicle
GB932084A (en) * 1958-12-30 1963-07-24 George Henry Arthur Wood Improvements in anti-theft devices for immobilising petrol engines
GB991927A (en) * 1960-10-22 1965-05-12 Kurr Maecker Improvements in or relating to press keys provided with a security unlocking device
GB1131350A (en) * 1967-04-28 1968-10-23 Thomas Bray Turman Improvements in or relating to key operated locks
EP0123415A1 (en) * 1983-03-25 1984-10-31 LUCAS INDUSTRIES public limited company Security switch
US4598182A (en) * 1984-04-04 1986-07-01 Breslin Daniel V Lock inhibitor for toggle switch actuator
GB2281816A (en) * 1993-09-14 1995-03-15 Kloeckner Moeller Gmbh Manually operated switch with a lock
US5541379A (en) * 1994-01-19 1996-07-30 Daewoo Electronics Co., Ltd. Rotary dial for use in a video cassette recorder

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538092A (en) * 1939-01-14 1941-07-21 Linde Air Prod Co Improvements in methods of deseaming or desurfacing of metal bodies
GB771651A (en) * 1955-08-29 1957-04-03 Anthony Arnejo Switch for controlling the ignition system and starter of a motor vehicle
GB932084A (en) * 1958-12-30 1963-07-24 George Henry Arthur Wood Improvements in anti-theft devices for immobilising petrol engines
GB991927A (en) * 1960-10-22 1965-05-12 Kurr Maecker Improvements in or relating to press keys provided with a security unlocking device
GB1131350A (en) * 1967-04-28 1968-10-23 Thomas Bray Turman Improvements in or relating to key operated locks
EP0123415A1 (en) * 1983-03-25 1984-10-31 LUCAS INDUSTRIES public limited company Security switch
US4598182A (en) * 1984-04-04 1986-07-01 Breslin Daniel V Lock inhibitor for toggle switch actuator
GB2281816A (en) * 1993-09-14 1995-03-15 Kloeckner Moeller Gmbh Manually operated switch with a lock
US5541379A (en) * 1994-01-19 1996-07-30 Daewoo Electronics Co., Ltd. Rotary dial for use in a video cassette recorder

Also Published As

Publication number Publication date
GB9725829D0 (en) 1998-02-04
GB2318456A (en) 1998-04-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011206