On the Development and Transmission of Power: From Central StationsLongmans, Green, 1894 - 312 páginas |
Dentro del libro
Resultados 1-5 de 25
Página 108
... rope , furnished by Messrs Newall & Co. , inch in diameter was substituted for the band . The same pulleys were used with a groove inch deep turned in the rim . That cable worked for many years , iron pulleys having been substituted for ...
... rope , furnished by Messrs Newall & Co. , inch in diameter was substituted for the band . The same pulleys were used with a groove inch deep turned in the rim . That cable worked for many years , iron pulleys having been substituted for ...
Página 109
... rope runs gutta percha , soft wood , and leather have been used . At present the bottom of the pulley groove is usually formed of strips of waste leather forced into a dovetailed groove . The greatest allowable speed of rope is that at ...
... rope runs gutta percha , soft wood , and leather have been used . At present the bottom of the pulley groove is usually formed of strips of waste leather forced into a dovetailed groove . The greatest allowable speed of rope is that at ...
Página 110
... Rope Cable . The cables used are stranded ropes having 6 to 12 wires in each strand and 6 to 10 strands in each rope ( fig . 27 ) . The strands are twisted on a hemp core , and usually there is a hemp core to each strand . The hemp ...
... Rope Cable . The cables used are stranded ropes having 6 to 12 wires in each strand and 6 to 10 strands in each rope ( fig . 27 ) . The strands are twisted on a hemp core , and usually there is a hemp core to each strand . The hemp ...
Página 111
... rope source of wear and frictional loss of power . therefore , that the spans of the cable should be as large as possible . Spans of 300 to 500 feet have been commonly adopted . For such spans the deflection of the rope is con ...
... rope source of wear and frictional loss of power . therefore , that the spans of the cable should be as large as possible . Spans of 300 to 500 feet have been commonly adopted . For such spans the deflection of the rope is con ...
Página 112
... rope a good frictional hold on the pulley , and to increase its durability , the pulley grooves are bottomed with some softer material than iron . Fig . 29 shows a section of single and double grooved pulley rims , with the leather 112 ...
... rope a good frictional hold on the pulley , and to increase its durability , the pulley grooves are bottomed with some softer material than iron . Fig . 29 shows a section of single and double grooved pulley rims , with the leather 112 ...
Otras ediciones - Ver todas
Términos y frases comunes
adiabatic air mains air motor alternate current atmospheric boilers cable cent central station coal compressed air compressors condensing conductors constructed cost Crown 8vo cubic feet curves cylinder destructor Diagrams direct current discharge distance driving dynamos effective h.p. hour efficiency electric lighting energy erected expansion fall feet per second flow friction fuel full load gas engines Geneva h.p. per annum heat high pressure hydraulic i.h.p. hour Illustrations inches in diameter Indicated h.p. indicator diagram jacket leakage lighting gas Lord Armstrong loss of pressure low pressure machinery mechanical mechanical efficiency Messrs miles motive power NON-CONDENSING obtained P₁ Paris pipes piston pound power purposes pressure turbines pressure water pulleys pumping quantity re-heated reservoir revolutions per minute Rhône rope Schaffhausen shaft sluices speed square inch steam engine steam power storage stored stroke supply temperature transmitted utilised valve varying volts waste water power wheel Woodcuts Zürich
Pasajes populares
Página 12 - NOTES OF A COURSE OF NINE LECTURES ON LIGHT. delivered at the Royal Institution of Great Britain, 1869. Crown 8vo. , u. 6d. NOTES OF A COURSE OF SEVEN LECTURES ON ELECTRICAL PHENOMENA AND THEORIES, delivered at the Royal Institution of Great Britain, 1870.
Página 16 - OTHER- WORLDS THAN OURS ; The Plurality of Worlds Studied under the Light of Recent Scientific Researches.
Página 2 - INORGANIC CHEMISTRY, THEORETICAL AND PRACTICAL. A Manual for Students in Advanced Classes of the Science and art Department. By WILLIAM JAGO, FCS , FIC With Plate of Spectra and 78 Woodcuts.
Página 17 - With over 300 Illustrations, a Geological Map of the British Isles (coloured), and a set of Questions for Examination. Crown 8vo., js, 6d.
Página 14 - WORKSHOP APPLIANCES, including Descriptions of some of the Gauging and Measuring Instruments, Hand-cutting Tools, Lathes, Drilling, Planeing, and other Machine Tools used by Engineers.
Página 9 - Sennett. — THE MARINE STEAM ENGINE ; a Treatise for the use of Engineering Students and Officers of the Royal Navy. By RICHARD SENNETT, Chief Engineer, Royal Navy.
Página 16 - A NEW STAR ATLAS, for the Library, the School, and the Observatory, in Twelve Circular Maps (with Two Index Plates). Intended as a Companion to 'Webb's Celestial Objects for Common Telescopes.
Página 21 - LOUDON'S ENCYCLOPEDIA of AGRICULTURE: comprising the Laying-out, Improvement, and Management of Landed Property, and the Cultivation and Economy of the Productions of Agriculture. With 1,100 Woodcuts. 8vo. 21s. London's Encyclopaedia of Gardening : comprising the Theory and Practice of Horticulture, Floriculture, Arboriculture, and Landscape Gardening.
Página 4 - INTRODUCTION TO THE STUDY OF CHEMICAL PHILOSOPHY. The Principles of Theoretical and Systematic Chemistry. With 5 Woodcuts. With or without the ANSWERS of Problems.
Página 9 - BALE.— A. HAND-BOOK FOR STEAM USERS; being Rules for Engine Drivers and Boiler Attendants, with Notes on Steam Engine and Boiler Management and Steam Boiler Explosions. By M. Powis BALE, MIME, AMICE Fcp. 8vo., 2s.