GB765724A - Improvements in or relating to electric circuit breakers or switches - Google Patents
Improvements in or relating to electric circuit breakers or switchesInfo
- Publication number
- GB765724A GB765724A GB6768/55A GB676855A GB765724A GB 765724 A GB765724 A GB 765724A GB 6768/55 A GB6768/55 A GB 6768/55A GB 676855 A GB676855 A GB 676855A GB 765724 A GB765724 A GB 765724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- positions
- relating
- switches
- electric circuit
- 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
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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
- H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
- H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
Abstract
765,724. Releasable fastenings. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 8, 1955 [March 19, 1954], No. 6768/55. Class 44. [Also in Group XXXVII] A locking device, suitable for an electric switch which has a handle which projects through a slot in the casing and is movable to " on " and " off positions, comprises a solid member (Fig. 3) apertured at 29 to fit over the handle 21 and having a nose-piece 35 which projects into the slot 23 and engages its end wall, thereby " wedging " the handle in one of its positions. The device has a longitudinal aperture 39, 43, the inner portion of which (39) is tapped to receive a set-screw 41 which secures the device to the handle. A transverse aperture 37 is provided through which a padlock may be inserted, thereby rendering the setscrew inaccessible to unauthorized persons. The device is reversible and may be used for locking in either the " on " or " off " positions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US765724XA | 1954-03-19 | 1954-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB765724A true GB765724A (en) | 1957-01-09 |
Family
ID=22132868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6768/55A Expired GB765724A (en) | 1954-03-19 | 1955-03-08 | Improvements in or relating to electric circuit breakers or switches |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1120945A (en) |
GB (1) | GB765724A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4347412A (en) * | 1979-01-12 | 1982-08-31 | Mitsubishi Denki Kabushiki Kaisha | Handle lock device for a switch |
US4467152A (en) * | 1983-05-18 | 1984-08-21 | The United States Of America As Represented By The United States Department Of Energy | Circuit breaker lock out assembly |
US5148910A (en) * | 1991-03-19 | 1992-09-22 | Houston Industries Incorporated | Circuit breaker tagging/lockout apparatus |
GB2285887A (en) * | 1994-01-21 | 1995-07-26 | Square D Co | A locking device for a circuit breaker handle |
US5500495A (en) * | 1993-01-26 | 1996-03-19 | Brady Usa, Inc. | Circuit breaker lockout device for attachment to solid switch stem |
-
1955
- 1955-03-08 GB GB6768/55A patent/GB765724A/en not_active Expired
- 1955-03-18 FR FR1120945D patent/FR1120945A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4347412A (en) * | 1979-01-12 | 1982-08-31 | Mitsubishi Denki Kabushiki Kaisha | Handle lock device for a switch |
US4467152A (en) * | 1983-05-18 | 1984-08-21 | The United States Of America As Represented By The United States Department Of Energy | Circuit breaker lock out assembly |
US5148910A (en) * | 1991-03-19 | 1992-09-22 | Houston Industries Incorporated | Circuit breaker tagging/lockout apparatus |
US5500495A (en) * | 1993-01-26 | 1996-03-19 | Brady Usa, Inc. | Circuit breaker lockout device for attachment to solid switch stem |
GB2285887A (en) * | 1994-01-21 | 1995-07-26 | Square D Co | A locking device for a circuit breaker handle |
Also Published As
Publication number | Publication date |
---|---|
FR1120945A (en) | 1956-07-17 |
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