Passing Comments
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HIGH-OCTANE petrol has to be removed from the tanks, etc., of aeroplanes before they are shipped from the U.S.A. to England, for the reason that the lead contained in it is apt to clog the fuel pipes. This is a particularly interesting point, as with the fairly high lead content of the fuel we are now using on commercial vehicles, a similar effect may be experienced if vehicles be laid up for any considerable period. Most of them are now wanted for service, but there may be others awaiting spares and repairs. It would, therefore be wise to drain tank and carburetter.
Leaded Fuel May Cause Blockage of Supply Pipes. . . .
Petroleum Board LITTLE time ago the Petroleum Board distributed official post cards to a number of transport operators asking for information concerning the disposal of Used oil. The response, however, was only fair, and all users who received such cards are urgently requested, in the national interest, to return them without delay to the Lubricating Oil Pool, Erettenham •House, Lancaster Place, London, W.C.2.. If others who have waste oil available, or who can collect it for disposal. did not receive a card, they also are asked to notify the Pool. Wants Information on Waste Oil . . . .
THE official organ of the
National Association of Furniture Warehousemen and Removers, "Removals . and Storage," in a leader dealing with rail congestion and the 60-mile limit on removals by road, complains bitterly of the present conditions of such transport work.. Despite the deputation which was sent to the M O.W.T. some months ago by the Association, matters have not improved, congestion on the railways is not cleared—in fact, it has become worse— and numbers of destinations are banned, sometimes for days, and often indefinitely. Price appears to be the only criterion, although when the mileage limit was fixed about .a year ago removers were informed that hardship, delay and price were of no account; it was the war, effort only that would be studied. It is contended that the retention of the limit and the requirement that practically all removals over it should be carried by rail are causing serious delays and hardship, and are in many ways entirely uneconomic.
Hardship
Methods of Improving q0ME 200,000 arc-welding the Efficiency of "operators are estimated to be
Welding working on the production of -ships, Tanks and other equipment for America's war effort. The importance of improving the speed of production is obvious. Larger electrodes are being used, with correspondingly increased current. Fillet welding with instead of kin. electrodes has improved output by over 40 per cent. Alternating current with heavily coated electrodes is now being used for higher-quality vertical and overhead welding. Hitherto direct current was necessary for welds of this type to meet specifications of 65,000 lb. per sq. in. ultimate tensile strength and 22 per cent, elongation in 2 ins. •The new A.C. electrode gives 72,000 lb. per sq. in. in ultimate strength, 27 per cent, elongation and 34 ft./lb. (Charpy impact test). This has released D.C. welding units for other work. A.C. transformers require only 60 per cent, of the copper used for the D.C. type, and consume 35 to 45 per cent, less power in Tank, gun and ship-gear work.