STOPPING THIEVES
USING HORN AS ALARM. An ingenious and inexpensive way of protecting the car, when parked, against car thieves is open to almost any motorist who is mechanical-mind-ed. • The idea is to arrange. for the electric horn to he sounded automatically, should the engine be started by any unauthorised person. An angleiron hracket can he secured to any convenient cylinder-head nut near the fan, Attach to this bracket. a piece Of clock spring slightly curved at its free end. Arrange this spring blade to make contact with the head of a bolt screwed into the rear face of the ; to one terminal of the horn hy a length of flex wire. A second wire connects the other horn terjninpl to the hattery Via -a concealed switch. The existing horn wiring is not altered in any way. It will he clear that, when the switch is closed the horn will sound every time the contact-maker completes the circuit. The intermittent hooting attracts attention to the car, and few thieves will wait to investigate how to stop the noise.
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https://paperspast.natlib.govt.nz/newspapers/RMPOST19320401.2.75.5
Bibliographic details
Rotorua Morning Post, Volume 1, Issue 188, 1 April 1932, Page 7
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178STOPPING THIEVES Rotorua Morning Post, Volume 1, Issue 188, 1 April 1932, Page 7
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