Valves and Valve-gearing: A Practical Text-book for the Use of Engineers, Draughtsmen, and StudentsChas. Griffin, 1902 - 153 Seiten |
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Seite 3
... lap , and LC is the position of the eccentric sheave relative to the position LM of the crank , LM being parallel to AB . On LC describe the primary valve circle CHL . This circle cuts the lap circle HK in H. Draw the line LHR . This is ...
... lap , and LC is the position of the eccentric sheave relative to the position LM of the crank , LM being parallel to AB . On LC describe the primary valve circle CHL . This circle cuts the lap circle HK in H. Draw the line LHR . This is ...
Seite 4
... lap and port opening , the distance LG is equal to the port opening plus the lap . But it has been shown that V G is ... inside lap , at crank position LS , the valve is in its central position , as previously explained ; and it is ...
... lap and port opening , the distance LG is equal to the port opening plus the lap . But it has been shown that V G is ... inside lap , at crank position LS , the valve is in its central position , as previously explained ; and it is ...
Seite 5
... inside lap , it will be observed that positive inside lap delays release and hastens compression ; while negative lap has the reverse effect in an equal degree . From L as Fig.2 . S W H L G V B centre , and with radius equal to the ...
... inside lap , it will be observed that positive inside lap delays release and hastens compression ; while negative lap has the reverse effect in an equal degree . From L as Fig.2 . S W H L G V B centre , and with radius equal to the ...
Seite 6
... inside lap to effect the desired result . Let F and G be the points decided upon . Join F and G by the straight line FN G. Then , if this line be parallel to ST , L N is the required negative inside lap ; the circle MN having FNG as a ...
... inside lap to effect the desired result . Let F and G be the points decided upon . Join F and G by the straight line FN G. Then , if this line be parallel to ST , L N is the required negative inside lap ; the circle MN having FNG as a ...
Seite 7
... lap will be negative ; and when that line intersects the secondary valve circle the lap will be positive ; and when the line is at right angles to the centre line of the valve circles there will be no inside lap whatever . In Fig . 2 ...
... lap will be negative ; and when that line intersects the secondary valve circle the lap will be positive ; and when the line is at right angles to the centre line of the valve circles there will be no inside lap whatever . In Fig . 2 ...
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Häufige Begriffe und Wortgruppen
arrangement Assoc Boilers BRYAN DONKIN central position centre line Chemistry clearance compression construction CONTENTS.-The Corliss gear Corliss valve crank pin crank position crank-pin Crown 8vo curve Cyanide Process cylinder dashpot describe diameter distance double-ported draw dwelling angle eccentric-rod Electrical equal EXETER STREET exhaust valves expansion gear expansion valve extreme position GRIFFIN'S NAUTICAL SERIES Handsome Cloth horizontal Hydraulic Machinery inside lap Inst lap circle Large 8vo lead link motion LONDON CHARLES GRIFFIN main valve Manual Marine Engineering Master Mariner Metallurgy Mining movement Numerous Illustrations piston plate point of cut-off port opening PRACTICAL PROF Pumping radius range of trip release resultant circle reversing Revised SECOND EDITION single eccentric gears slide valve steam valves STRAND stroke stuffing box TEXT-BOOK THIRD EDITION trip gear trip hook trip lever trip motion valve circle Valve Diagram valve gear valve lever valve spindle valve-rod vertical width WILLIAM ALLINGHAM wrist wrist-plate pins
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Seite 42 - KNOW YOUR OWN SHIP. BY THOMAS WALTON, NAVAL ARCHITECT. Specially arranged to suit the requirements of Ships' Officers, Shipowners, Superintendents, Draughtsmen, Engineers, and Others. This work explains, in a simple manner, such important subjects as: — Displacement. — Deadweight.— Tonnage.— Freeboard. —Moments. — Buoyancy.— Strain Structure.— Stability.— Rolling.— Ballasting. — Loading. — Shifting Cargoes. — Admission of Water.— Sail Area.
Seite 26 - ... CONTENTS. — Classification of different Types of Boilers — 425 Experiments on English and Foreign Boilers with their Heat Efficiencies shown in Fifty Tables — Fire Grates of Various Types — Mechanical Stokers — Combustion of Fuel in Boilers — Transmission of Heat through Boiler Plates, and their Temperature — Feed Water Heaters, Superheaters, Feed Pumps, &c. — Smoke and its Prevention — Instruments used in Testing Boilers — Marine and Locomotive Boilers — Fuel Testing Stations...
Seite 33 - A MANUAL OF APPLIED MECHANICS : Comprising the Principles of Statics and Cinematics, and Theory of Structures, Mechanism, and Machines. With Numerous Diagrams. Crown 8vo, Cloth. SEVENTEENTH EDITION. 12s. 6d. A MANUAL OF CIVIL ENGINEERING : Comprising Engineering Surveys, Earthwork, Foundations, Masonry, Carpentry, Metal Work, Roads, Railways, Canals, Rivers, Waterworks, Harbours, &c.
Seite 36 - 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,...
Seite 31 - TABLE, in place of the usual Fifteen minute computations required. This alone is evidence of the assistance which the Tables ensure to every user, and as every Surveyor in active practice has felt the want of such assistance, few knowing of their publication will remain without them.
Seite 78 - THE PAINTER'S LABORATORY GUIDE. A Student's Handbook of Paints, Colours, and Varnishes. BY GEORGE H. HURST, FCS, MSCI ABSTRACT OF CONTENTS.
Seite 36 - SECOND EDITION, Cloth, 8s. 6d. Leather, for the Pocket, 8s. 6d. GRIFFIN'S ELECTRICAL PRICE-BOOK : For Electrical, Civil, Marine, and Borough Engineers, Local Authorities, Architects, Railway Contractors, &c., &c. Edited by HJ DOWSING.
Seite 59 - Ss. 6d. net. A HANDBOOK ON PETROLEUM. FOR INSPECTORS UNDER THE PETROLEUM ACTS, And for those engaged in the Storage, Transport, Distribution, and Industrial Use of Petroleum and its Products, and of Calcium Carbide. With suggestions on the Construction and Use of Mineral Oil Lamps. BY CAPTAIN JH THOMSON, HM Chief Inspector of Explosives, AND SIR BOVERTON REDWOOD, Author of "A Treatise on Petroleum.
Seite 43 - GENERAL CONTENTS. — PART I. — Principles of Marine Propulsion. PART II. — Principles of Steam Engineering. PART III. — Details of Marine Engines : Design and Calculations for Cylinders, Pistons, Valves, Expansion Valves, &c. PART IV.— Propellers. PART V. — Boilers. PART VI. — Miscellaneous. "The Student, Draughtsman, and Engineer will find this work the HOST VALDABLK HANDBOOK of Reference on the Marine Engine now in existence.