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Evening Post, Volume CI, Issue 96, 23 April 1921, Page 5

Electrically-welded steel structures are beginning to become familiar in Great Britain, which was the first country to apply 'this method of jointing in place of riveting. The latest building to bo erected on the system is the new factory of an ejeotrje weldijig company in Scotland. For the most part the^ general design of the columns and the roof is on standard lines, but no rivets - are used, Simple, Straightforward joints are made by arc welding, the electrodes which produce the arc (wh.qse heat affects the weld) being coated with a special conducting flux, which itself forms an arc, and, in melting, cover? the molten steel and prevents it oxidising. The work is done with great rapidity, and saves a material amount of steel,

One of the most novel and interesting cieyicps shown at a recent exhibition of spiontiftc appliances iti London was an electrical instrument for measuring and controlling the speed of machinery. As applied on board ship, it enables the captain to indicate to the engineer exactly the speed at which ho fishes the engine to run, ahead or astern. Similarly, the captain,-can ascertain at any moment the speed at which the ongines are running. This appliance can be used in a factory to indicate to the works manager in his office the speed at which any_ machine, no matter at what distance, is operating. The instrument is exceedingly simple, Mid equally eemitJTe,