GB1451754A - Interlock mechanisms - Google Patents

Interlock mechanisms

Info

Publication number
GB1451754A
GB1451754A GB5221972A GB5221972A GB1451754A GB 1451754 A GB1451754 A GB 1451754A GB 5221972 A GB5221972 A GB 5221972A GB 5221972 A GB5221972 A GB 5221972A GB 1451754 A GB1451754 A GB 1451754A
Authority
GB
United Kingdom
Prior art keywords
bolt
microswitch
slot
contacts
handle
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
GB5221972A
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.)
Johnson Electric International UK Ltd
Original Assignee
Burgess Micro Switch Co 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 Burgess Micro Switch Co Ltd filed Critical Burgess Micro Switch Co Ltd
Priority to GB5221972A priority Critical patent/GB1451754A/en
Publication of GB1451754A publication Critical patent/GB1451754A/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
    • H01H27/06—Key inserted and then turned to effect operation of the switch
    • H01H27/08—Key inserted and then turned to effect operation of the switch wherein the key cannot be removed until the switch is returned to its original position

Landscapes

  • Mechanisms For Operating Contacts (AREA)

Abstract

1451754 Bolt mechanisms BURGESS MICRO SWITCH CO Ltd 13 Nov 1973 [13 Nov 1972] 52219/72 Heading E2A [Also in Division H1] An electrical switch interlock mechanism comprises a door bolt 2 having a bolt member 4 arranged to be displaceable to a first locking position and thereafter to a second position in which its locking function is maintained, an electrical switch being actuated by bolt 4 in its movement between the first and second positions. When bolt 4 is slid forward to the position shown, the square end 30 of bolt 4 enters a square opening 32 in cam 26 in staple 16 and rotation of bolt 4 by handle 6 being moved down slot 14 rotates cam 26 so that bridging contact 22 is urged against fixed contacts 20 by spring 24. In a second embodiment, Figs. 4, 5 (not shown) the end 30 is longer and when pushed into socket 32 engages a microswitch 44 to open it before handle 6 is rotated to close contacts 20, 22, then a small rearward movement of handle 6 along a slot 42 parallel to slot 10 closes the microswitch so that the load is made by the microswitch, not contacts 20, 22 similarly when opening the door, bolt 4 is first moved forward along slot 42 to open the microswitch before handle 6 is rotated back to open contacts 20, 22, and the bolt withdrawn down slot 12, thus the load is broken by the microswitch.
GB5221972A 1972-11-13 1972-11-13 Interlock mechanisms Expired GB1451754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5221972A GB1451754A (en) 1972-11-13 1972-11-13 Interlock mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5221972A GB1451754A (en) 1972-11-13 1972-11-13 Interlock mechanisms

Publications (1)

Publication Number Publication Date
GB1451754A true GB1451754A (en) 1976-10-06

Family

ID=10463083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5221972A Expired GB1451754A (en) 1972-11-13 1972-11-13 Interlock mechanisms

Country Status (1)

Country Link
GB (1) GB1451754A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854376A1 (en) * 1978-12-16 1980-06-19 Pfisterer Elektrotech Karl COUNTER
EP0911468A1 (en) * 1997-10-27 1999-04-28 Euchner-Sorella Sliding security bolt
CN105089390A (en) * 2015-08-14 2015-11-25 成都格瑞思文化传播有限公司 Novel bolt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854376A1 (en) * 1978-12-16 1980-06-19 Pfisterer Elektrotech Karl COUNTER
EP0911468A1 (en) * 1997-10-27 1999-04-28 Euchner-Sorella Sliding security bolt
FR2770250A1 (en) * 1997-10-27 1999-04-30 Euchner Sorelia SAFETY TARGET
CN105089390A (en) * 2015-08-14 2015-11-25 成都格瑞思文化传播有限公司 Novel bolt

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Legal Events

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