A Manual of Marine Engineering: Comprising the Designing, Construction, and Working of Marine Machinery |
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Common terms and phrases
allowance amount angle arrangement bearings bending boiler bolts bottom brass calculated cast cause cent centre columns compared compound engine condenser connecting-rod consequently considerable cover crank cut-off depends diameter difference direction effective efficiency equal example exceed exhaust expansive engine face feet fitted friction give given half heat high-pressure cylinder horizontal increase Indicated initial iron journals latter length less limit load loss low-pressure cylinder marine maximum mean pressure measured metal motion moving nearly necessary necessity obtained opening ordinary packing pipes piston piston-rod plates ports position possible pounds practice propeller pump rate of expansion ratio receiver resistance ring rule screw shaft ship side sometimes space speed square inch steam steamers steel strain strength stroke sufficient surface taken temperature thickness tubes twisting usually valve vertical weight
Popular passages
Page vi - PREFACE TO THE SECOND EDITION THE demand for a second edition of this work within three...
Page 2 - The ratio of expansion, also called the number of expansions, is the ratio between the volume of steam in...
Page 422 - 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 as described opposite P, R, and...
Page 415 - It is to be capable of being bent to a curve, of which the inner radius is not greater than one and a half times the thickness of the plates or bars, after having been heated uniformly to a low cherry-red and quenched in water of 82° F.
Page 426 - When a superheater is constructed with a tube subject to external pressure the working pressure should be ascertained by the rules given for circular furnaces, but the constants should be reduced as 30 to 47. In all cases the internal steam pipes should be so fitted that the steam in flowing to them will pass over all the plates exposed to the impact of heat or flame. Superheaters should, as regards survey, be deemed to be the most important...
Page 415 - The material to stand bending hot to an angle of 90°, over a radius not greater than lj time the thickness of the plates. General Remarks about Boilers under Construction.- — The surveyors will be guided in fixing the working pressure by the tables and formulae annexed. Any novelty in the construction of the machinery or boilers to be reported to the Committee. The boilers, together with the machinery, to be inspected at different stages of construction. The boilers to be tested by hydraulic pressure,...
Page 427 - ... but strips cut from furnaces, combustion boxes, &c., should be heated to a cherry red, then plunged into water of about 80° and kept there until of the same temperature as the water, and then bent. The bending strips should not be less than 2 inches broad and 10 inches long, and they should...
Page 442 - Tables opposite the boiler pressure intended, but in no case should the valves be less than two inches in diameter. This applies to new vessels or vessels which have not received a passenger certificate. When, however, the valves are of the common description, and are made in accordance with the...
Page 289 - IHP indicated thrust is — — -. -. — : pitch x revolutions. When decomposed into its constituent parts indicated thrust is resolved into several elements, which must be enumerated and kept in view. These elements are: 1, the useful thrust or ship's true resistance; 2, the augment of resistance, which, as I have pointed out in many...
Bibliographic information
| Title | A Manual of Marine Engineering: Comprising the Designing, Construction, and Working of Marine Machinery |
| Author | Albert Edward Seaton |
| Edition | 6 |
| Publisher | C. Griffin, 1886 |
| Original from | the University of Michigan |
| Digitized | 19 Jun 2007 |
| Length | 479 pages |
| Export Citation | BiBTeX EndNote RefMan |