TELL-TALE INSTRUMENT.

Hawke's Bay Tribune, Volume XVII, Issue 207, 16 August 1927, Page 7

TELL-TALE INSTRUMENT.

RECORDS VEHICLE’S MOVEMENTS a AN AUCKLAND EXPERIMENT. A simple little invention has disturbed the unofficial smoke-oh which some lorry drivers usually have about 10 o'clock in the morning (states the Auckland “Sun”). It can be fixed to a lorry, or any moving vehicle, and records', unknown to the driver, every tinie the vehicle stops, and for how long. Trouble may await the driver who makes unofficial halts in his employer’s time. The little tell-tale instrument records everything. Several of these instruments have made their appearance in Auckland, and have been used to good effect.

One firm secretly fixed three of the instruments to three of its lorries. For three days the instruments recorded the fact that the lorries stopped regularly for a considerable period every morning

Inquiries were made, and it was found that the drivers met for “a morning cup of tea.” They did not know that the little instruments were recording these morning halts. The instrument is a- very small affair, containing a clock and a metal face, over which is placed a circular card. This card has a sensitive surface, so that the shaking movement of the vehicle to which it is attached marks round the edge of the card very distinctly.

The card is fixed firmly, and is carried round by the block and therefore records the time the vehicle is away, the time it. is kept moving, and tlic length of time it stops

The instrument can be fixed to a vehicle of any kind, and cannot be interfered with, as it is locked by the person who fits it to the vehicle.

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