Proceedings Volume 2-4

Proceedings Volume 2-4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ... the work. l'll-ITHOD NUMBER Two (Suggested by W. R. Calverley in Coal Age _une 15, 1922. Extracts from article here given.) The plan, according to the author, is to work the coal out in blocks or panels which in his judgment should be 1,500 ft. long. He proposes to turn ofif working places at the extreme end of the panel and to work the block on retreat. About eight working places should be ample, because, if the machine is what one has a right to expect, it could, after cleaning fully unless a locomotive is kept in attendance exclusively and unless the entry be kept entirely free from locomotives other than the one allotted to the loader. When the coal in the working place is loaded, the motor then would go on to the foot of the entry, where a passing siding has been provided. It would there discharge its load and start back up the entry with a train of empties. Thus the motor would have something to do while the loading machine was moving from one place to another. One of the first things to remember will be that the locomotive must take a sufficient number of cars into the entry to clean up a working face so that when the last car is loaded they can be taken away, leaving the tracks clear for the loading machines to move quickly and uninterruptedly to the point where coal next will be loaded. Passing tracks must be provided as near to the machine as economically possible, so that there will be the least possible delay in the changing of cars. After the car is removed an empty must be placed quickly in its place, so that the machine will be kept busy. This, in his judgment, can be accomplished by adopting a method which is illustrated in the accompanying figure. t It will then be noted that in the plan a back switch is located in...
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Product details

  • Paperback | 388 pages
  • 189 x 246 x 20mm | 689g
  • United States
  • English
  • black & white illustrations
  • 1236917111
  • 9781236917119