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GB1434735A - Warning device - Google Patents

Warning device

Info

Publication number
GB1434735A
GB1434735A GB3519372A GB3519372A GB1434735A GB 1434735 A GB1434735 A GB 1434735A GB 3519372 A GB3519372 A GB 3519372A GB 3519372 A GB3519372 A GB 3519372A GB 1434735 A GB1434735 A GB 1434735A
Authority
GB
United Kingdom
Prior art keywords
switch
mercury
closed
circuit
july
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
GB3519372A
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.)
Saunders Roe Developments Ltd
Original Assignee
Saunders Roe Developments 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 Saunders Roe Developments Ltd filed Critical Saunders Roe Developments Ltd
Priority to GB3519372A priority Critical patent/GB1434735A/en
Publication of GB1434735A publication Critical patent/GB1434735A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Bridges Or Land Bridges (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

1434735 Measuring tilt electrically SAUNDERS-ROE DEVELOPMENTS Ltd 26 July 1973 [27 July 1972] 35193/72 Headings G1F and G1N. Apparatus for indicating the tilting of an article e.g. a pontoon, for longer than a predetermined time comprises, in one embodiment a mercury switch 8 which when closed by excess tilting, causes a heater 9 to operate on the bi-metal arm of a switch 7 to open the circuit of a relay 3 after a given time, to place in circuit a warning lamp 5 and a connection 4 to an alarm. Connection to supply 1 is initially established by closing a switch 2 which operates the alarm as a test until push switch 6 is closed to operate the relay 3 and establish a holding circuit for it. A group of mercury switches in lieu of one may be used, Fig. 3 (not shown). In another arrangement, Fig. 2 (not shown), the heater may be in series with the switch 7. In a further arrangement, the mercury switch or switches are normally closed and a condenser is used to provide by its discharge rate, the delay means, Fig. 4 (not shown).
GB3519372A 1972-07-27 1972-07-27 Warning device Expired GB1434735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3519372A GB1434735A (en) 1972-07-27 1972-07-27 Warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3519372A GB1434735A (en) 1972-07-27 1972-07-27 Warning device

Publications (1)

Publication Number Publication Date
GB1434735A true GB1434735A (en) 1976-05-05

Family

ID=10374927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3519372A Expired GB1434735A (en) 1972-07-27 1972-07-27 Warning device

Country Status (1)

Country Link
GB (1) GB1434735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360886A (en) * 1999-12-17 2001-10-03 Bosch Gmbh Robert Tilt activated power supply cut-out circuit for mobile electrical machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360886A (en) * 1999-12-17 2001-10-03 Bosch Gmbh Robert Tilt activated power supply cut-out circuit for mobile electrical machines
GB2360886B (en) * 1999-12-17 2002-04-10 Bosch Gmbh Robert Circuit arrangement for the voltage supply of mobile electrical loads
DE19960972B4 (en) * 1999-12-17 2009-08-20 Robert Bosch Gmbh Circuit arrangement for supplying power to mobile electrical consumers

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees