Papers and Discussions on Engines, Boilers and Torpedo Boats |
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90 pounds air pressure allow amount armor Biles Board of Trade boats boiler-rooms bottom Captain Noel carbonic acid cent circumferential seams coal compared compound engine condensation conning-tower Conqueror considerable construction corrosion diagram diameter displacement effect efficiency expansion experiments factor of safety forced draught FREDERICK BRAMWELL Froude furnaces give given guide-blade heat hull increase indicated horse-power indicator diagrams jackets knots length Lloyd's Register Lloyd's Rules longitudinal seams lord Macfarlane Gray marine boilers marine engineers means ment Naval Architects obtained ordinary paper plates pounds per square practically propeller proportion question ratio reference regard remarks resistance revolutions revolutions per minute rivets Satellite screw sea-going ship Sir Edward Reed skin friction speed square inch steam steamer steel strength surface surface condensers temperature thickness Thornycroft thrust curve tion tons torpedo torpedo-boats Trade Rules trials tubes turning force V₁ vessels wake Yarrow
Popular passages
Page 65 - The boilers must be tested by hydraulic pressure to twice the working pressure in the presence and to the satisfaction of the Board's Surveyors. "But when the above conditions are not complied with, the additions in the following scale miist be added to the factor fice according to the circumstances of each case.
Page 219 - I have to thank you for the kind manner in which you have received my paper. I hold in the words of Lord Bacon, if I may quote him on this occasion, that " every man is a debtor to his profession to endeavour to advance it.
Page 66 - To be added when the boiler is of such a length as to fire from both ends, or is of unusual length, such as flue boilers ; and the circumferential seams are fitted...
Page 66 - W* -4 To be added if the seams are not properly crossed. X* -4 To be added when the iron is in any way doubtful, and the surveyor is not satisfied that it is of the best quality.
Page 196 - I would like to call attention to one thing in connection with this paper. We have been speaking of the "consumption of coal," but I think it would be far better to call it the amount of "coal expended.
Page 29 - ... pressure. In the present paper I shall endeavour to prove that this is not the case, by showing that the only restrictions imposed by Lloyd's Register are such as are actually demanded by considerations of safety. I would here venture to remark that the experience of the Surveyors to Lloyd's Register, gained in the periodical examinations of marine boilers of all types, gives them exceptionally good opportunities of judging not only of the original strengths required for the structures to withstand...
Page 65 - When cylindrical boilers are made of the best material with all the rivet holes drilled in place and all the seams fitted with double butt straps each of at least five-eighths the thickness of the plates they cover, and all the seams at least double riveted with rivets having an allowance of not more than 75 per cent.
Page 65 - The Board of Trade consider that boilers well constructed, well designed, and made of good material should have an advantage in the matter of working pressure over boilers inferior in any of the above respects, as unless this is done the superior boiler is placed at a disadvantage, and good workmanship and material will be discouraged.
Page 65 - ... with rivets having an allowance of not more than 75 per cent. over the single shear, and provided that the boilers have been open to inspection during the whole period of construction, then 5 may be used as the factor of safety.
Page 150 - I am very much obliged to you for the kind way in which you have received my Paper. It is especially gratifying to me that both the Chairman and Dr.