PREVENTING THE THEFT OF MOTOR VEHICLES
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TO meet the requirements of those persons who habitually leave their vehicles unattended by the roadside and who do not want to be troubled by using a key on every occasion, the Daylock switch has recently been introduced by World's Products, Ltd., 32, Bloomsbury Street, London, W.C.1. This ingenious little device can be fitted in addition to the ordinary switch, or it can replace it.
The device can be fixed to the -instru ment board, all that is necessary being to bore a hole through which the spindle can pass. At one end of this spindle is a handle and at the other a cam, which. when turned, will partly rotate the discs shown in the accompanying drawing. These discs are arranged so that when in one position they complete the electric circuit, whilst in the reverse position they break it.
The spindle has a number of grooves into which a spring falls, thus giving the user an indication as to how far the spindle has been pulled out. An example of its operation is as follows When in the " off " position, the spladle is pushed right in ; to start the engine it is pulled out, say, two grooves and then turned in a clock-wise direction: This makes contact through one disc, whilst if pulled out, say, four more grooves and turned anti-clock-wise, contact is made through the other disc. These combinations can be altered in their sequence to an almost unlimited extent. It can be worked in the dark, without looking at the switch.