COAL-GAS PROGRESS.
Page 20
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Recent Improvements. Some Hints and Wrinkles.
The 'Tanksmith. Carburetter.
It is significant of the gas movement to observe the increased attention which is being devoted. US the more efficient and economical use of the gas. This is particularly noticeable in connection with the design of the mixing chambers or carburetters. The latest contribution to this end is the Tahlomith carburetter shown in the accompanying illustration, which has been invented by Mr. Harry Tankard, who was well known in Laneash;re previous to the war as chief engineer of the Inter-Transport Co., Ltd.
The fundamental principle§ of combining the gas and air in the mixing chamber as embodied in this patent, were shown in an improvised form at the Commituerat Moron. demonstration held on 10th October last. Since then many improvements in detail have been effected, Culminating in the ingenious and effective device now being placed on the market.
• With this device a perfect mixture at all engine speeds is secured, combined with the consumption of the minimum gas for the maximum of engine power. The engine can be run at a slower speed therewith • than on petrol, while it is more quickly responsive to acceleration
and deceleration.• . The outstanding difficulty with gas is that concerned with the-determination of the most efficient mixture of air and gas. This issue is complicated when drawing supplies from divers gas works. owing to the varying qualities of the fuel. A special device has been introduced in this carburetter to this end, there being a. supplementary air valve controlled through a Bowden wire from a lever, set conveniently on the dashboard or steering pillar, and which permits the mixture to be adjusted to a perfect nicety within the minimum of time and without leaving the driving seat.
One characteristic of this gas carburetter Which will Claim attention is that when the engine stops the valve automatically shuts off the flow of gasfrom the container, even if the driver should
B.18 forget-to turn off the main cock. It will thus be seen • that the Tankstnith carburetter conduces to avoidance of all waste of gas, a. distinctive requirement in these days of straitened supplies. The carburetter is made by Tankard and Smith, Ltd., 232, High Road, S.'Tottenham, London, N.., wino inform us that they are now in a• position to supply.
. 800 ft. Gas. Bag.
A two-ton Lacre lorry fitted with a 280 c. ft. container for Messrs. G. L. Greenwood and Co., Wholesale Druggists
and Drysalters, Ke'ghicy, was recently illustrated in the pages of THE COMMiaCIA.T. MOTOR. With this container nine miles could be run, but Messrs. Greenwood felt they were net getting the ad
vantage from coal-gas which they might owing to the comparatively small quantity of gas which could be carried.
Consequently a container as large as the vehicle would accommodate has been obtained from Quality Garages Ltd.., Liverpool. The container is thee 18 ft. long, and holds about 800 cubic ft. of gas. Some adjustments were made with the carburetter at the time the new container was fitted, and now. almost 20 miles can be run on one charge. Messrs. Greenwood have also fitted a, private filling station, the supply pipe for which may be seen on the left, a the accompanying illustration. This is also a time-saving idea, as the vehicle can be receiving its load and its charge of gas at the same time.
Bread Delivery by Gas.
A B.R.M. container of 280 cubic ft. capacity has been fitted to an Overland' van used by the Bakery Department of the Great Horton Co-operative Society, a flourishing organization in one of the suburbs of Bradford. The conversion to coal-gas has been carried out by Messrs. T. Pickles and Co., North Queen Street,. Keighley, and a very neat result has been obtained. ,