A Text-book of Coal-mining: For the Use of Colliery Managers and OthersCharles Griffin & Company, 1904 - 563 Seiten |
Im Buch
Ergebnisse 1-5 von 84
Seite xi
... Chain • 234 Attachment of Tubs · 234 Driving Pulleys · 235 Taking up Slack · 255 .255 . 255 256 238 239 Working Branches and Curves 256 Minimising Breakages 239 Endless Rope Haulage 239 Driving Appliances . 240 ( a ) Clip Pulleys 241 ...
... Chain • 234 Attachment of Tubs · 234 Driving Pulleys · 235 Taking up Slack · 255 .255 . 255 256 238 239 Working Branches and Curves 256 Minimising Breakages 239 Endless Rope Haulage 239 Driving Appliances . 240 ( a ) Clip Pulleys 241 ...
Seite xii
... Chains 297 Method of taking off Strain 298 Adjusting Screws 299 Guides Pulleys Skips and Cages Shape and Construction 291 Expansion 292 Condensation . 293 Compound Engines 296 Winding from Great Depths Blanchet Pneumatic System • 286 ...
... Chains 297 Method of taking off Strain 298 Adjusting Screws 299 Guides Pulleys Skips and Cages Shape and Construction 291 Expansion 292 Condensation . 293 Compound Engines 296 Winding from Great Depths Blanchet Pneumatic System • 286 ...
Seite 78
... chain carrying the cutter teeth . As this chain has to be carried over the top of the rails , the machine cannot undercut in the bottom of the seam unless the floor is taken up . The difficulty is got over to a certain extent by canting ...
... chain carrying the cutter teeth . As this chain has to be carried over the top of the rails , the machine cannot undercut in the bottom of the seam unless the floor is taken up . The difficulty is got over to a certain extent by canting ...
Seite 80
... chain carries THE JEFFREY RPG C Fig . 75 . cutting knives , which work around a triangular - shaped cutter head . Two advantages are thus secured : -Only three wheels are required to guide the chain - viz . , two in the cutter head and ...
... chain carries THE JEFFREY RPG C Fig . 75 . cutting knives , which work around a triangular - shaped cutter head . Two advantages are thus secured : -Only three wheels are required to guide the chain - viz . , two in the cutter head and ...
Seite 81
... chain form of this machine takes less power to drive than the bar type , but both labour under the disadvantage of being large and heavy , and expensive to move about from one place to another . After the first cut under has been made ...
... chain form of this machine takes less power to drive than the bar type , but both labour under the disadvantage of being large and heavy , and expensive to move about from one place to another . After the first cut under has been made ...
Inhalt
1 | |
14 | |
20 | |
38 | |
44 | |
71 | |
83 | |
98 | |
344 | |
350 | |
356 | |
364 | |
374 | |
380 | |
386 | |
408 | |
112 | |
151 | |
157 | |
178 | |
188 | |
194 | |
200 | |
208 | |
226 | |
255 | |
286 | |
298 | |
419 | |
423 | |
429 | |
438 | |
445 | |
467 | |
477 | |
502 | |
519 | |
551 | |
556 | |
559 | |
Andere Ausgaben - Alle anzeigen
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