A Text-book of Coal-mining: For the Use of Colliery Managers and OthersCharles Griffin & Company, 1904 - 563 Seiten |
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Ergebnisse 1-5 von 75
Seite xi
... Rails • Length of Rails Gauge . CHAPTER VII . - HAULAGE . · 224 Semi - portable Engines 224 Self - acting Inclines Arrangement of Rails Blocks or Stops • 226 226 " Method of laying Rails . 226 Drums and Pulleys Fish Plates . Sleepers ...
... Rails • Length of Rails Gauge . CHAPTER VII . - HAULAGE . · 224 Semi - portable Engines 224 Self - acting Inclines Arrangement of Rails Blocks or Stops • 226 226 " Method of laying Rails . 226 Drums and Pulleys Fish Plates . Sleepers ...
Seite xii
... Rails at Junctions .. 267 Comparison Clips . 269 Locomotives Clips for under Haulage . 269 Driven by Compressed Air Clips for over Haulage Automatic Detachers Working Curves 270 Driven by Electricity 273 Driven by Benzine 275 ...
... Rails at Junctions .. 267 Comparison Clips . 269 Locomotives Clips for under Haulage . 269 Driven by Compressed Air Clips for over Haulage Automatic Detachers Working Curves 270 Driven by Electricity 273 Driven by Benzine 275 ...
Seite 46
... rails had to be laid . The road might be considered a very fair sample of a cross - cut in the Coal Measures . Similar work in another part of the pit , without the aid of a drill , cost £ 2 a lineal yard . TRANSMISSION OF POWER . - In ...
... rails had to be laid . The road might be considered a very fair sample of a cross - cut in the Coal Measures . Similar work in another part of the pit , without the aid of a drill , cost £ 2 a lineal yard . TRANSMISSION OF POWER . - In ...
Seite 72
... rails , the latter , although carrying several machines , re- quiring that the road should be clear of débris before the drills could be set to work . The modern form consists of a vertical column ( a , Fig . 70 ) resting on a base , in ...
... rails , the latter , although carrying several machines , re- quiring that the road should be clear of débris before the drills could be set to work . The modern form consists of a vertical column ( a , Fig . 70 ) resting on a base , in ...
Seite 77
... rails . It revolves , how- ever , from front to back , and carries the débris into the cut , requiring the services of an assistant to clean it out . The cut can be made alternately in opposite directions . Diamond Coal Cutter . - An ...
... rails . It revolves , how- ever , from front to back , and carries the débris into the cut , requiring the services of an assistant to clean it out . The cut can be made alternately in opposite directions . Diamond Coal Cutter . - An ...
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Häufige Begriffe und Wortgruppen
alternating current amount angle Anthracite apparatus arrangement attached bars bolts boring bottom brake cage carbon carbonic acid carried cent centre chain coal coal-dust coils Colliery compressed connected consists cost cylinder depth distance drill driven drum employed engine explosion feet fire-damp fixed flange friction gear groove haulage hole inclined Inst iron lamp latter length lever lifted load longwall lower Lye Cross machine method mines motor obtained ordinary passes pieces pillars pipes piston placed plate plunger position pressure prevent props pulley pump quantity rails revolutions per minute roads rods roof rope round safety lamp screen screw seams Série shaft shown in Fig side sliding South Wales speed stall steam steel stroke surface timber tippler tool tube valve velocity ventilation vertical water gauge weight wheel winding winding engine wire yards