GB368024A - Improvements in theft alarms for motor vehicles - Google Patents

Improvements in theft alarms for motor vehicles

Info

Publication number
GB368024A
GB368024A GB344131A GB344131A GB368024A GB 368024 A GB368024 A GB 368024A GB 344131 A GB344131 A GB 344131A GB 344131 A GB344131 A GB 344131A GB 368024 A GB368024 A GB 368024A
Authority
GB
United Kingdom
Prior art keywords
exhaust
valve
motor vehicles
theft alarms
whistle
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
GB344131A
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.)
SIDNEY VALENTINE ALLHN
Original Assignee
SIDNEY VALENTINE ALLHN
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 SIDNEY VALENTINE ALLHN filed Critical SIDNEY VALENTINE ALLHN
Priority to GB344131A priority Critical patent/GB368024A/en
Publication of GB368024A publication Critical patent/GB368024A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/104—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device characterised by the type of theft warning signal, e.g. visual or audible signals with special characteristics
    • B60R25/1045—Signal comming from the exhaust

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)

Abstract

368,024. Theft alarms. ALLEN, S. V., Marston Vicarage, near Stafford, and FORD, H., Lightbounds, Uttoxeter, Staffordshire. Feb. 3, 1931, No. 3441. [Class 118 (i).] A whistle operated by the exhaust of a motor vehicle is sounded when unauthorized use is made of the vehicle. The alarm device comprises a housing A inserted in the exhaust pipe F between the engine and the silencer and fitted with a rotary valve G having a bore H normally connecting the two parts of the exhaust pipe. By unlocking a bolt Q, the valve G may be turned through 90� and locked in that position, so that the exhaust is conducted through a byepass J in the valve to a whistle L.
GB344131A 1931-02-03 1931-02-03 Improvements in theft alarms for motor vehicles Expired GB368024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB344131A GB368024A (en) 1931-02-03 1931-02-03 Improvements in theft alarms for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB344131A GB368024A (en) 1931-02-03 1931-02-03 Improvements in theft alarms for motor vehicles

Publications (1)

Publication Number Publication Date
GB368024A true GB368024A (en) 1932-03-03

Family

ID=9758381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB344131A Expired GB368024A (en) 1931-02-03 1931-02-03 Improvements in theft alarms for motor vehicles

Country Status (1)

Country Link
GB (1) GB368024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425484A1 (en) * 1987-12-03 1991-05-08 MILLAR, Frederick William Security device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425484A1 (en) * 1987-12-03 1991-05-08 MILLAR, Frederick William Security device
EP0425484A4 (en) * 1987-12-03 1992-12-09 Frederick William Millar Security device

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