GB1338036A - Electrical switch with a key interlock - Google Patents

Electrical switch with a key interlock

Info

Publication number
GB1338036A
GB1338036A GB5525671A GB5525671A GB1338036A GB 1338036 A GB1338036 A GB 1338036A GB 5525671 A GB5525671 A GB 5525671A GB 5525671 A GB5525671 A GB 5525671A GB 1338036 A GB1338036 A GB 1338036A
Authority
GB
United Kingdom
Prior art keywords
rocker
key
projection
carrier
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
Application number
GB5525671A
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.)
McGill Manufacturing Co Inc
Original Assignee
McGill Manufacturing Co Inc
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 McGill Manufacturing Co Inc filed Critical McGill Manufacturing Co Inc
Publication of GB1338036A publication Critical patent/GB1338036A/en
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/569—Lever
    • Y10T70/573—Single
    • Y10T70/5735—Externally mounted locking device
    • Y10T70/5739—With padlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/569—Lever
    • Y10T70/573—Single
    • Y10T70/5743—Disconnectable

Abstract

1338036 Snap-action switches; latching McGILL MFG CO Inc 29 Nov 1971 [28 Dec 1970] 55256/71 Heading H1N In a rocker operated snap-action switch the rocker 45, Fig. 2, is coupled to a pivoted carrier 30 for a snap-action spring plunger 34 through a removable key 60 whereby the switch is rendered inoperative by the rocker when the key 60 is removed. The carrier 30 has a projection 50 extending within a recess 47 in the rocker, the key 60 being inserted in a guide-way 65 in the rocker to provide a positive connection between guide way 65 surface and one side of the projection 50. The arrangement may be such that projections (70), Fig. 4 (not shown), on the rocker may engage the projection 50 on the opposite side to that of the key 60 whereby the switch may be switched off without the key 60 in position but cannot be switched on again due to the resultant lost motion between the rocker and carrier 30. In a modification a rocker (90), Fig. 5 (not shown), may have a key (95) with a pair of arms (96, 97) engaging opposite sides of the carrier projection 50.
GB5525671A 1970-12-28 1971-11-29 Electrical switch with a key interlock Expired GB1338036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10193470A 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
GB1338036A true GB1338036A (en) 1973-11-21

Family

ID=22287249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5525671A Expired GB1338036A (en) 1970-12-28 1971-11-29 Electrical switch with a key interlock

Country Status (6)

Country Link
US (1) US3632914A (en)
CA (1) CA936206A (en)
DE (2) DE7147102U (en)
FR (1) FR2120845A5 (en)
GB (1) GB1338036A (en)
IT (1) IT945270B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906176A (en) * 1974-08-02 1975-09-16 Hubbell Inc Harvey Tamperproof switch
US4230917A (en) * 1979-02-12 1980-10-28 Mcgill Manufacturing Company, Inc. Removable-key rocker type switch for two circuits
US4359615A (en) * 1981-08-14 1982-11-16 Black & Decker Inc. Switch and means to prevent unauthorized operation thereof
US4767895A (en) * 1987-10-27 1988-08-30 Eaton Corporation Removable key off-lock switch having improved locking actuator
US5239143A (en) * 1988-06-28 1993-08-24 Judco Manufacturing, Inc. Rocker switch operator means
US7317263B2 (en) * 2004-05-10 2008-01-08 Gary Anderson Power tool lockdown device
US7750509B2 (en) * 2004-05-10 2010-07-06 Gary Anderson Power tool lockdown device
CA2506878C (en) * 2004-05-10 2011-11-22 Gary Anderson Pneumatic tool lock
TWM264533U (en) * 2004-08-27 2005-05-11 Quanta Comp Inc Mechanical roller gear controller
US20080223012A1 (en) * 2007-03-13 2008-09-18 Black & Decker, Inc. Cordless electric mower fail-safe charge lockout
JP2014229475A (en) * 2013-05-22 2014-12-08 オムロン株式会社 Switch, and method of controlling the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076787B (en) * 1957-12-10 1960-03-03 Berker Geb Lockable electrical rocker switch
DE1106391B (en) * 1959-09-26 1961-05-10 Berker Geb Lockable electrical rocker switch

Also Published As

Publication number Publication date
DE2162079B2 (en) 1973-08-30
IT945270B (en) 1973-05-10
US3632914A (en) 1972-01-04
CA936206A (en) 1973-10-30
FR2120845A5 (en) 1972-08-18
DE7147102U (en) 1972-04-20
DE2162079A1 (en) 1972-06-29
DE2162079C3 (en) 1974-03-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees