At the invitation of Messrs, S.C, Farnham Ca, of the Old Dock, one of our reporters on Thursday went with several others in the Nora to'Tung-ka-doo Dock to seethe now pumping year working. uny-ka-doo Dock, formerly called Muirhead's Duck, was con: structed some twenty-three years ago. 350 feet long over all and 308 at the bottom, 122 ft. Ginches broad at the top and narrow:
down at 56 feet 6 inches at the base, During the last thirteen years, this dock has boon leased by the Pootuny Dock Ca. to Moosrs, S.C. Farnham & Ca., and in terms of the new tease, the latter Com pany have erected new pumping machiry and pump house, the original pump-machinery being' of an antiquated description, having been constructed prior to 1862, 'At that date it is probable the pumps wore considered excellent, but in these days, whau science advances with such rapid' atridos, everything improved upon, and this holds good with regard to pumps as to other appliance In the old pumping house on the sid the duck furthest from Shanghai, a collection of combi wheels which have i y instrumental in pumping the water out of the dock. The fly wheel of the en-me is of considerable weight, being some thirteen fest in diameter. ' The new pumping house is on the opposite side of the dock, It is a light structure with a corrugated iron roof. There are two bvilora, the main one, and a donkey Both those boilers were constructed ho largo one in July last year—by Mes Furuham & Ca., and the latter the one hundred and ninth made them, It is built of steel, of the Lancashire type, that is, with' two furnaces, and has boon tested up to a pressure of 150 Ibs., the working preesuro being 65 Ibs, It is 22 feet 6 inches long by 7 foot diameter, A special feature the arrangement of the flues is that they have a constantly increasing sectional aren, the result being that the velocity of the smoke decreases as its that most hiowt accumulated' in the smoke lust by escaping theough the eh but is utilized in making steam. 'L! works saving in the consumption of coal, and it only requires about a ton anda quarter of coal during the time the dock is being pumped out, The other builer—a donkey—is to be used with a muller pump for cleaming the dock. the steam from the big boiler that drives the big pump whi was made by W. Allen & Ca. at the Works, York Street, London, This pump is a great improve minut on the old one, and is very powerful, It is a centrifugal, with a din meter of 20 inches, and such is its capacity that it can discharge 8,000 gallous of yute, oF 48,000 in an hour.
i © exhibited yesterday rat half hour it was working it decreased the volume of water in the duck by eighteen inches. In one hour a half, the water was reduced 5 feet 9 inches, the water being raised about 20 feet without the aid of a foot valve, The pump worked very smoothly, and considering that it was making abottt 200 revolutions a aninute, there was very little nuise. It is capable of making 400 revolutions in the same time. 'The fy wheel is only about Unree feet in diameter. In the ware compartment with the pump which about twelve feet below the level of the floor of the pumping louse are two donkey pumps to feed the boilers. Que has bee' constructed by Messrs. S. C. Farnham Cv,, and is numbered 116, Every thing at the trial worked smoothly, except one of the donkeys, which for a time appeared to emulate ite animated namesake, but after youd deal of persunsiun, it finally set to work with " will, Anew pair of shears are being put up on the dock premises for lifting heavy weights out of vessels. The legs, whicl are of Oregon pine, are each 82 feet long, 96 inches thick, and will bear a strain of GU
Been gone into between the police and these two servants, it appeared that they intimated that the evoke, at the request of Mr. Armstrong, had set fire to the house at the request of Mr. Armstrong and had told the watchman not to report the fire at once. These out at the Mixed
Text read from the printed page and cleaned; old type leaves the occasional error.