GB530586A - Improvements in snap-action electrical switches - Google Patents

Improvements in snap-action electrical switches

Info

Publication number
GB530586A
GB530586A GB1749639A GB1749639A GB530586A GB 530586 A GB530586 A GB 530586A GB 1749639 A GB1749639 A GB 1749639A GB 1749639 A GB1749639 A GB 1749639A GB 530586 A GB530586 A GB 530586A
Authority
GB
United Kingdom
Prior art keywords
arm
lever
snap
pivoted
pivot
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
GB1749639A
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.)
FOSTER ENGINEERING Co Ltd
Original Assignee
FOSTER ENGINEERING 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 FOSTER ENGINEERING Co Ltd filed Critical FOSTER ENGINEERING Co Ltd
Priority to GB1749639A priority Critical patent/GB530586A/en
Publication of GB530586A publication Critical patent/GB530586A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action
    • H01H21/42—Driving mechanisms having snap action produced by compression or extension of coil spring

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

530,586. Snap-action switches. BAGNALL, R. I., and FOSTER TRANSFORMERS & SWITCHGEAR, Ltd., (formerly FOSTER ENGINEERING CO.,Ltd.). June 15,1939, No. 17496. [Class 38 (v)] An operating - lever 3, rotatable about pivot 4 by a handle (not shown), is connected to a contact-arm 1, pivoted at 2, by a dead-centre spring-link 6 pivoted to it at 7 and engaging a pin 8 on the arm 1. The part of arm 1 below the pivot is engageable at or beyond the position of maximum spring-strain by positive-drive surfaces 10, 11 on the lever 3, which is initially driven by projections 12, 13, adapted to engage pin 8 before the surfaces 10, 11, come into play. A projection 14 on the lever 3 engages a catch 15 on the arm 1 to prevent closure of the latter except by. the handle.
GB1749639A 1939-06-15 1939-06-15 Improvements in snap-action electrical switches Expired GB530586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1749639A GB530586A (en) 1939-06-15 1939-06-15 Improvements in snap-action electrical switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1749639A GB530586A (en) 1939-06-15 1939-06-15 Improvements in snap-action electrical switches

Publications (1)

Publication Number Publication Date
GB530586A true GB530586A (en) 1940-12-16

Family

ID=10096184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1749639A Expired GB530586A (en) 1939-06-15 1939-06-15 Improvements in snap-action electrical switches

Country Status (1)

Country Link
GB (1) GB530586A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870282A (en) * 1955-06-15 1959-01-20 Licentia Gmbh Toggle switch system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870282A (en) * 1955-06-15 1959-01-20 Licentia Gmbh Toggle switch system

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