Steam Boilers: Their Defects, Management, and ConstructionC. Griffin & Company, Limited, 1903 - 157 Seiten |
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Seite 12
... load on the valve to a serious extent . They are usually fitted with close - top lever guards , which have the appearance of being specially designed to facilitate the wedging - down pro- cess , and , in addition to the chances of ...
... load on the valve to a serious extent . They are usually fitted with close - top lever guards , which have the appearance of being specially designed to facilitate the wedging - down pro- cess , and , in addition to the chances of ...
Seite 15
... load on safety - valve at any distance less than 27 inches will bear the same proportion to that of 60 lbs . per square inch , as the distance to which the weight has been moved will . bear to 27 inches - thus , when L is reduced to 22 ...
... load on safety - valve at any distance less than 27 inches will bear the same proportion to that of 60 lbs . per square inch , as the distance to which the weight has been moved will . bear to 27 inches - thus , when L is reduced to 22 ...
Seite 17
... load per square inch on the valve , it is of the greatest importance that it should be made to do so ; and for this purpose the balance should be tested by suspending therefrom standard weights - say , of 28 or 56 lbs .; if these ...
... load per square inch on the valve , it is of the greatest importance that it should be made to do so ; and for this purpose the balance should be tested by suspending therefrom standard weights - say , of 28 or 56 lbs .; if these ...
Seite 18
... load of 7 x 749 lbs . on 49 10 lbs . per square inch of valve area . 4.9 the valve , or = In the same manner , a ... loads on the boilers to which they are applied . Care should also be taken to ascertain that these ferrules are of such ...
... load of 7 x 749 lbs . on 49 10 lbs . per square inch of valve area . 4.9 the valve , or = In the same manner , a ... loads on the boilers to which they are applied . Care should also be taken to ascertain that these ferrules are of such ...
Seite 19
... loading , and with those of good type the construction is such that , in the event of extra weights being applied . they cannot fail to attract attention . 66 AREA OF SAFETY - VALVES . Safety - valves , besides being accurately loaded ...
... loading , and with those of good type the construction is such that , in the event of extra weights being applied . they cannot fail to attract attention . 66 AREA OF SAFETY - VALVES . Safety - valves , besides being accurately loaded ...
Häufige Begriffe und Wortgruppen
arranged attached blow-off Board of Trade bottom BRYAN DONKIN bursting pressure Butt joints cause cent circular seams collapsing pressure construction corrosion cross tubes Crown 8vo crown plates cylindrical defects double rivetting end plates Engineer EXETER STREET explosions factor of safety feed-water fire firebox fitted flanged flue tubes fracture frequently front end furnace tubes fusible plug gauges grooving gusset Handsome Cloth heating iron J. J. THOMSON Lancashire boilers lap joints leakage length lever liable load Locomotive LONDON CHARLES GRIFFIN man-hole Marine material method obtained ordinary overheating pipe pitch plate section practice prevent PROF proportions render Revised rings rivet section rivetted joints rule rupture safety-valves sectional area shearing strength shell plates solid plate square inch steam users steel stop-valve straining STRAND strength Strength of Materials suitable surface tensile strength tested Text-Book THIRD EDITION uptake-tube valve vertical boilers water space weight welding whilst
Beliebte Passagen
Seite 28 - II. Classification of Steel Ships. III. Considerations in making choice of Type of Vessel. — Framing of Ships. IV. Strains experienced by Ships. — Methods of Computing and Comparing Strengths of Ships. V. Construction of Ships. — Alternative Modes of Construction. — Types of Vessels. — Turret, Self Trimming, and Trunk Steamers, &c. — Rivets and Rivetting, Workmanship. VI. Pumping Arrangements. VII. Maintenance. — Prevention of Deterioration in the Hulls of Ships.— Cement, Paint, &c.—...
Seite 32 - Notwithstanding my many years' experience at sea, it has told me how much more there it to acquire." — (Letter to the Publishers from a Master Mariner). " I must express my thanks to you for the labour and care you have taken in 'PRACTICAL MECHANICS.' . . . IT is A LIFE'S EXPERIENCE. . . . What an amount we frequently see wasted by rigging purchases without reason and accidents to spars, &c., &c. ! 'PRACTICAL MECHANICS
Seite 42 - Illustrated. 8s. 6d. net. SANITARY ENGINEERING: A Practical Manual of Town Drainage and Sewage and Refuse Disposal, For Sanitary Authorities, Engineers, Inspectors, Architects, Contractors, and Students. BY FRANCIS WOOD, AMlNST.CE, FGS, Borough Engineer and Surveyor, Fulham ; late Borough Engineer, Bacup, Lanes.
Seite 31 - CONTENTS. INTRODUCTORY. — Instruments Used at Sea for Meteorological Purposes.— Meteorological Log-Books. — Atmospheric Pressure. — Air Temperatures. — Sea Temperatures. — "Winds.— Wind Force Scales.— History of the Law of Storms.— Hurricanes, Seasons, and •Storm Tracks. — Solution of the Cyclone Problem. — Ocean Currents. — Icebergs.— Synchronous Charts.— Dew, Mists, Fogs, and Haze.— Clouds.— Rain, Snow, and Hail.— Mirage, Rainbows, Coronas, Halos, and Meteors.—...
Seite 15 - EDITION, Thoroughly Revised. Pocket-Size, Leather. 8s. 6d. A POCKET-BOOK OF MARINE ENGINEERING RULES AND TABLES, FOR THE USE OF Marine Engineers, Naval Architects, Designers, Draughtsmen, Superintendents and Others. BY AE SEATON, MIOE, MIMech.E., MINA, AND HM ROUNTHWAITE, MIMech.E., MINA, " The best book of its kind, and the information is both up-to-date and reliable.
Seite 33 - Price 6s. A MEDICAL AND SURGICAL HELP FOR SHIPMASTERS AND OFFICERS IN THE MERCHANT NAVY. BY WM. JOHNSON SMITH, FROS, Principal Medical Officer, Seamen's Hospital, Greenwich. *»* The attention of all interested in our Merchant Navy is requested to this exceedingly...
Seite 31 - Chart— Mercator Sailing — Current Sailing — Position by Bearings— Great Circle Sailing — The Tides — Questions — Appendix : Compass Error — Numerous Useful Hints.
Seite 18 - By Defective and Overloaded Safety Valves — (3) By Corrosion, Internal or External— -(4) By Defective Design and Construction (Unsupported Flue Tubes ; Unstrengthened Manholes ; Defective Staying ; Strength of Rivetted Joints ; Factor of Safety)— II. CONSTRUCTION...
Seite 41 - There is no question that, given the PERFECT GROUNDING of the Student in his Science, the remainder comes afterwards to him in a manner much more simple and easily acquired. The work is AN EXAMPLE OP THE ADVANTAGES OF THE SYSTEMATIC TREATMENT of a Science over the fragmentary style so generally followed. BY A LONG WAY THE BEST of the small Manuals for Students.
Seite 32 - All but the simplest explanations have. therefore, been avoided, and ANSWERS to the Exercises are given. Any person may readily, by careful study. become master of their contents, and thus lay the foundation for a further mathematical course, if desired.