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Keeping Track of the Vehicle
Page 105
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A Brief Review of the Various Instruments Designed to Record Automatically the Daily Movements of the Vehicle
RECENT legislation regarding drivers' hours demands strict supervision over all goods vehicles, and the keeping of an accurate time record is essential if legal requirements are to be fully met. Under the regulations. it is necessary to keep drivers' records for a period of six months and these must be produced on demand during that period.
It is obvious, then, that such records should be carefully examined before being filed, and an easy check on the vehicle's movements is provided by the wide range of recording instruments that is available.
Apart from the question of drivers' hours, however, some means for checking the distances, speed, times of running, and idle periods of commercial vehicles are highly desirable if maximum economy in operation is to be assured.
One of the best-known instruments is the Servis, manufactured by Servis Recorders, Ltd., 72-75, Red Lion Street, London, W.C.1. Various models are available to register over periods of from 12 hours to 8 days and the records of running time and rest periods are, in each case, obtained by a pendulum mechanism operated by the movement of the vehicle.
Another pendulum-operated instru ment is made by Coltagraph Recorders, Ltd., 28, Victoria Street, London, S.W. and it is known as the Coltagraph. Each time this device is opened the chart is pierced by a knife point, so that the driver or his assistant may be left to change the chart.
The Geecen Speedograph is marketed by Great Central Motor Services, Ltd., 133-137, Marylebone Road, London, N.W.1, and, in addition to providing data showing 'starting and stopping times, duration of idle and running periods, etc„ this ,instrument records the speed of the vehicle throughout its journey.
A useful feature of this instrument is the inclusion of a tell-tale light which automatically lights up whenever the vehicle exceeds a predetermined speed.
A range of Bruhn instruments is marketed by Messrs. Dougherty and Janitch, CS, Victoria Street, London, S.W.1, and these incorporate several attractive features.
The Controlograph is a product of Mechanical and General Inventions, Ltd., 10, Charles Street, London, S.W.1, and it is available in two pat terns. The Plus Cotrtrolograph is of the vibratory type, whilst the Tachy model incorporates a speedometer and is driven from the gearbox.
A new range of instruments has recently been introduced by Speedometer (Permanent-Record), Ltd., 68, Victoria Street, London, S.W.1, and they each incorporate a high-grade Rotherham clock movement Models for oneday, two-day or six-day operation are marketed.
The instruments are designed to allow the chart to be used as the driver's official log sheet. Entries are made by means of a lever which marks the starting and stopping times at the beginning and end of the day's work, also the rest periods. At the end of the day the driver need cnly add his signature to the chart ; his entries are confirmed by the automatic record of the vehicle's movements.
The Veeder Odometer is a simple and reliable device for recording mileage. The makers of this device are F. E. Dickinson, St. Andrew's House, Holborn Circus, London. E.C.1.