An Electrically Driven Tyre Inflator.
Page 47
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AN appliance which should prove to be of much practical use, especially to owners of large fleets, as it provides a means whereby .tyres.may be inflated in a most rapid and economical manner, is the Eco Air Station, which is marketed. by .Equipments, Ltd., Morley liouse, Regent Street, London, W.1. The apparatus comprises .a compact, fully enclosed, electrically driven air pump and a circular container at its base, which houses 25 ft. of heavy hose. The last-mentioned is wound on a steel reel, which is geared direct to a metal barrel containing a strong, coiled spring. By means of this device the hose is rewound on the reel after use. The spring is 16 ft. long and 2 ins. wide, and operates in an oilbatb, its tension being adjustable.
In order to inflate a tyre by this appliance one has only to turn the indicator until it registers the desired pressure, pull the hose from its container at the base of the pump and apply the specially constructed nozzle to the tyre valve. Power is switched on when the first 2 ft. of hose have been drawn from the container, and, RS the pump commences to operate, a bell starts to ring. When the tyre has been inflated to the required pressure the bell stops ringing, and the operator then releases the hose, which is automatically drawn into its housing, the power being mechanically switched off at the same time, thus avoiding any waste of current or needless running of the pump.
Another advantage is that the hose leaves and enters the container between four roller guides. This arrangement ensures AB easy action and protects the hose from chafing. There is also a rubber-ball cushion near the nozzle to absorb any shock caused when the hose is drawn back into the container.
On entering the pump the air passes through a.special type of cleaner in the base of .the apparatus, which operates on an ingenious centrifugal principle. It is stated that this cleaner does not restrict the air flow or reduce the pressure, and that it is never necessary to remove the filtering element, as it is self-cleaning.
Equipments, Ltd., also handles the sales of the Bennett petrol pump in this country. This appliance has already been described in our columns, and it may now be stated that it sells at the price of £18 —an unusually low figure especially for a machine built on such sound and workmanlike lines.