Transactions - North of England Institute of Mining and Mechanical Engineers Volume 1

Transactions - North of England Institute of Mining and Mechanical Engineers Volume 1

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1853 edition. Excerpt: ...who have tried this lamp; but, as most of them are present, it is not necessary for me to occupy your time in stating their opinions, which aro generally favourable. I have received one unfavourable report, however; but, as the conclusion arrived at is contrary to my own observations, and those of othors, I cannot but think there has been some mistake committed in the course of the experiments. I have no intention to press this lamp upon you contrary to your own convictions; yon are the best judges in the matter, and I leave it entirely in your hands. Mr Crocdace.--How is it that the lamp becomes extinguished in a very explosive atmosphere? Dr Glover.--The fact has been ascertained; it is not the result of my own experiment, and I must, therefore, decline to give an explanation. Upton and Roberts's lamp and Stephenson's also go out. The President.--The reason why the lamp goes out is, the diminished quantity of air which gets into it being unable to support combustion. This lamp is very like Stephenson's in principle. The air enters through the wire gauze, and when it becomes highly explosive there is not sufficient oxygen present to support combustion, and it consequently goes out. Dr Glover.--When a large quantity of carburetted hydrogen is mixed with the atmospheric air the lamp goes out. Mr T. Y. Hall.--Yes; but it first explodes within the lamp. Mr Reed.--This lamp is somewhat similar in principle with Stephenson's, but it will burn for a longer time than Stephenson's; it does not go out so soon, and that is an advantage. The President.--I do not think it an objection to a lamp that it goes out. I rather consider it a principle of safety in Stephenson's lamp that it goes out in a very explosive atmosphere. I do not think any mine ought to more

Product details

  • Paperback | 112 pages
  • 189 x 246 x 6mm | 213g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236502981
  • 9781236502988