GB903384A - Pull-operated electric mercury switch - Google Patents

Pull-operated electric mercury switch

Info

Publication number
GB903384A
GB903384A GB372758A GB372758A GB903384A GB 903384 A GB903384 A GB 903384A GB 372758 A GB372758 A GB 372758A GB 372758 A GB372758 A GB 372758A GB 903384 A GB903384 A GB 903384A
Authority
GB
United Kingdom
Prior art keywords
rocker
pull
switch
mercury switch
feb
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
GB372758A
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.)
GEOFFREY BAYNARD HANDLEY
PARSONS C H Ltd
Original Assignee
GEOFFREY BAYNARD HANDLEY
PARSONS C H 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 GEOFFREY BAYNARD HANDLEY, PARSONS C H Ltd filed Critical GEOFFREY BAYNARD HANDLEY
Priority to GB372758A priority Critical patent/GB903384A/en
Publication of GB903384A publication Critical patent/GB903384A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain

Landscapes

  • Railway Tracks (AREA)

Abstract

903,384. Snap-action switches. PARSONS Ltd., C. H., and HANDLEY, G. B. Feb. 4, 1959 [Feb. 5, 1958], No. 3727/58. Class 38 (5). A switch operated on and off by successive pulls of a chain or cord 12 has two mercury containers 29 pivoted on pins 32 and connected to a rocker 23 by pins 33 thereon engaged in slots 34 in the carriers 31 for the containers 29. The rockers 23 are moved by the chain by a mechanism similar to that of Specification 692,127. Carriers 31 have two spaced slots 34 so that the angular arrangement of rocker and carrier may be adjusted to provide a two-pole switch or a two-way switch. The rocker is urged away from dead-centre to its extreme positions by a lever 45 acted upon by a spring 42 and engaging a roller 39 on the rocker. Specifications 733,226 and 738,088 also are referred to.
GB372758A 1958-02-05 1958-02-05 Pull-operated electric mercury switch Expired GB903384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB372758A GB903384A (en) 1958-02-05 1958-02-05 Pull-operated electric mercury switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB372758A GB903384A (en) 1958-02-05 1958-02-05 Pull-operated electric mercury switch

Publications (1)

Publication Number Publication Date
GB903384A true GB903384A (en) 1962-08-15

Family

ID=9763808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB372758A Expired GB903384A (en) 1958-02-05 1958-02-05 Pull-operated electric mercury switch

Country Status (1)

Country Link
GB (1) GB903384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176940A (en) * 1985-05-07 1987-01-07 Contactum Ltd Electrical pull switches

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176940A (en) * 1985-05-07 1987-01-07 Contactum Ltd Electrical pull switches
GB2176940B (en) * 1985-05-07 1989-06-28 Contactum Ltd Improvements in and relating to electrical pull switches

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