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The Daily Dispatch: August 22, 1861., [Electronic resource], article 5 (search)
A Novel experiment.[from the London Mechanics' Magazine.] On Wednesday some experiments on a rather large scale were made on the right bank of the Thames and immediately below the railway bridge, Batter sea, with a view to testing the efficiency of transmitting goods and parcels proposed by the Pneumatic Dispatch Company. The mechanical arrangements in connexion with the experimental line of cast-iron tubing — which, like a huge black snake, stretches for more than a quarter of a mile along the river side — are few and simple. Under a temporary shed a high-pressure steam engine of thirty-horse power, made by Watt & Co., and having its cylinder placed at an angle of forty-five degrees, is erected, and it gives direct motion through the medium of a crank to a large disc of sheet iron. The disc runs on tubular bearings, and narrows from about two feet six inches in breadth at its centre to three inches at its circumference, its diameter being eighteen feet. Its interior conta