GB1248751A - Improvements relating to gravity operated mercury switches - Google Patents

Improvements relating to gravity operated mercury switches

Info

Publication number
GB1248751A
GB1248751A GB3324968A GB3324968A GB1248751A GB 1248751 A GB1248751 A GB 1248751A GB 3324968 A GB3324968 A GB 3324968A GB 3324968 A GB3324968 A GB 3324968A GB 1248751 A GB1248751 A GB 1248751A
Authority
GB
United Kingdom
Prior art keywords
contacts
switch
energize
fuel
improvements relating
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
GB3324968A
Inventor
Leslie Chapman
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.)
Lelio Developments & Products
Original Assignee
Lelio Developments & Products
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 Lelio Developments & Products filed Critical Lelio Developments & Products
Priority to GB3324968A priority Critical patent/GB1248751A/en
Publication of GB1248751A publication Critical patent/GB1248751A/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

Landscapes

  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

1,248,751. Controlling vehicles. LELIO DEVELOPMENTS & PRODUCTS Ltd. 9 Oct., 1969 [12 July, 1968], No. 33249/68. Heading B7H. [Also in Division H1] A gravity-operated mercury switch 22 (see Division H1) is fitted to control the fuel supply system of a tractor, so that when the tractor reaches a predetermined angle of inclination from the vertical, Figs. 16 to 18 (not shown), the switch contacts close to energize a relay whose contacts 25 thereupon close to energize a solenoid 26 which operates the shut-down valve 27 of the fuel injector pump. In addition to shutting off the fuel, the contacts 25 also actuate a warning bell 28 and light 29. The switch 22 may be used to control the ignition circuit of an internal combustion engine, the relay in this case having two sets of contacts, Fig. 20 (not shown).
GB3324968A 1968-07-12 1968-07-12 Improvements relating to gravity operated mercury switches Expired GB1248751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3324968A GB1248751A (en) 1968-07-12 1968-07-12 Improvements relating to gravity operated mercury switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3324968A GB1248751A (en) 1968-07-12 1968-07-12 Improvements relating to gravity operated mercury switches

Publications (1)

Publication Number Publication Date
GB1248751A true GB1248751A (en) 1971-10-06

Family

ID=10350466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3324968A Expired GB1248751A (en) 1968-07-12 1968-07-12 Improvements relating to gravity operated mercury switches

Country Status (1)

Country Link
GB (1) GB1248751A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160266A (en) * 1984-06-16 1985-12-18 Michael Stephen Ramsey Tractor safety devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160266A (en) * 1984-06-16 1985-12-18 Michael Stephen Ramsey Tractor safety devices

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