The Colliery Manager's Handbook: A Comprehensive Treatise on the Laying-out and Working of Collieries Designed as a Book of Reference for Colliery Managers and for the Use of Coal-mining Students Preparing for First-class CertificatesCrosby Lockwood and Son, 1891 - 578 Seiten |
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Seite xii
... raising Rods . Pair of Rod- Wrenches for screwing and unscrewing Rods . Levers for turning Rods . Spring Dart for drawing Pipes in Bore - Holes . Bell - Box for bringing up broken bits . Spiral Worm for extracting broken Rods . Worm ...
... raising Rods . Pair of Rod- Wrenches for screwing and unscrewing Rods . Levers for turning Rods . Spring Dart for drawing Pipes in Bore - Holes . Bell - Box for bringing up broken bits . Spiral Worm for extracting broken Rods . Worm ...
Seite 11
... raise the rods , another man then turns the bracehead partly round , and the men at the brake let it go suddenly , causing the chisel to cut into the ground . When it is desired to take the rods out , the bracehead is unscrewed and a ...
... raise the rods , another man then turns the bracehead partly round , and the men at the brake let it go suddenly , causing the chisel to cut into the ground . When it is desired to take the rods out , the bracehead is unscrewed and a ...
Seite 12
... raising rods . 9. Pair of rod - wrenches for screwing and unscrewing rods . 10. Levers for turning rods . 11. Spring dart for drawing pipes in bore - holes . 12. Bell - box for bringing up broken bits . 13. Spiral worm for extracting ...
... raising rods . 9. Pair of rod - wrenches for screwing and unscrewing rods . 10. Levers for turning rods . 11. Spring dart for drawing pipes in bore - holes . 12. Bell - box for bringing up broken bits . 13. Spiral worm for extracting ...
Seite 13
... raising the beam and allowing it to fall . The other end of the beam rests in a trestle , which acts as the fulcrum ... raised and lowered . The machine carrying the cog - wheels and shafting is moved when it becomes necessary to draw ...
... raising the beam and allowing it to fall . The other end of the beam rests in a trestle , which acts as the fulcrum ... raised and lowered . The machine carrying the cog - wheels and shafting is moved when it becomes necessary to draw ...
Seite 14
... raised by means of the chain , and attached by screwing to the rods held by the clamps . All is then lowered together , and again suspended by clamps . This process is repeated again and again until the crown reaches the bottom of the ...
... raised by means of the chain , and attached by screwing to the rods held by the clamps . All is then lowered together , and again suspended by clamps . This process is repeated again and again until the crown reaches the bottom of the ...
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Häufige Begriffe und Wortgruppen
airway allow angles arrangement attached Barnsley boiler bore-hole bottom brattice cage carbonic acid carboniferous centre chain chocks coal measures Coal Seam Colliery cubic feet cubic foot cylinder depth distance downcast drill driven drum engine explosion face fathoms feet of air feet per minute fire-damp fireclay fixed flue foot friction furnace hole horizontal horse-power inches in diameter incline iron joint lamp Lancashire boiler length lever lift load Longwall lower means method motion pass Permian pillars pipe piston placed plates pressure props pulley pump quantity of air revolutions per minute riveted road roadway rock rods roof rope round safety-lamps screw shale shown in Fig side South Wales sprags square inch stall steam steel strata stroke surface taken temperature thick timber tons tube tubs underground valve velocity ventilation vertical water-gauge weight whilst winding wire wire rope yards
Beliebte Passagen
Seite 7 - No words of praise from us can strengthen the position so well and so steadily maintained by this work. Sir Charles Warren has revised the entire work, and made such additions as were necessary to bring every portion of the contents up to the present date.
Seite 7 - AN OUTLINE OF THE METHOD OF CONDUCTING A TRIGONOMETRICAL SURVEY. For the Formation of Geographical and Topographical Maps and Plans, Military Reconnaissance, LEVELLING, &c., with Useful Problems, Formulae, and Tables. By Lieut. -General...
Seite 16 - There is comprised in it every possible shape into which the letters of the alphabet and numerals can be formed, and the talent which has been expended in the conception of the various plain and ornamental letters is wonderful.
Seite 17 - THE ELEMENTARY PRINCIPLES OF CARPENTRY : a Treatise on the Pressure and Equilibrium of Timber Framing, the Resistance of Timber, and the Construction of Floors, Arches, Bridges, Roofs, Uniting Iron and Stone with Timber, &c. To which is added an Essay on the Nature and Properties of Timber...
Seite 28 - Rates, from id. to i68s. per cwt., and containing 186,000 Direct Answers, which, with their Combinations, consisting of a single addition (mostly to be performed at sight), will afford an aggregate of 10,266,000 Answers ; the whole being calculated and designed to ensure correctness and promote despatch. By HENRY HARBEN, Accountant. Fourth Edition, carefully Corrected. Royal 8vo, strongly half-bound, £i 55. " A practical and useful work of reference for men of business generally ; It Is the best...
Seite 26 - Museum of Science and Art. THE MUSEUM OF SCIENCE AND ART. Edited by DIONYSIUS LARDNER, DCL, formerly Professor of Natural Philosophy and Astronomy in University College, London. With upwards of 1 200 Engravings on Wood.
Seite 20 - THE PROSPECTOR'S HANDBOOK: A Guide for the Prospector and Traveller in Search of Metal-Bearing or other Valuable Minerals. By JW ANDERSON, MA (Camb.), FRGS, Author of "Fiji and New Caledonia," Fifth Edition, thoroughly Revised and Enlarged.
Seite 13 - Handbook of Specifications. THE HANDBOOK OF SPECIFICATIONS ;. or, Practical Guide to the Architect, Engineer, Surveyor, and Builder, in drawing up Specifications and Contracts for Works and Constructions. Illustrated by Precedents of Buildings actually executed by eminent Architects and Engineers. By Professor TL DONALDSON, PRIBA, &c.
Seite 29 - PAPER-MAKING. A Practical Handbook of the Manufacture of Paper from Rags, Esparto, Straw, and other Fibrous Materials. Including the Manufacture of Pulp from Wood Fibre, with a Description of the Machinery and Appliances used. To which are added Details of Processes for Recovering Soda from Waste Liquors. By ALEXANDER WATT, Author of
Seite 4 - We should be glad to see this book in the possession of everyone in the kingdom who has ever laid, or is to lay, hands on a locomotive engine.