File:Transactions (1852) (14759934036).jpg

Identifier: transactions21nort (find matches)
Title: Transactions
Year: 1852 (1850s)
Authors: North of England Institute of Mining and Mechanical Engineers, Newcastle-upon-Tyne North of England Institute of Mining and Mechanical Engineers, Newcastle-upon-Tyne. Report of the Committee upon mechanical coalcutting, 1905
Subjects: Mineral industries Mechanical engineering
Publisher: Newcastle-upon-Tyne
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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^s work, a moderate distance wasdriven, say, five or six yards into the solid face of the coal at eachgateway, of sufficient width to get a right angle cutting, and so workthe face in the direction of one gateway to the other ? They had casesin each of these counties where such an operation was carried on verysuccessfully. Perhaps Mr. Lewis would tell them whether he wouldadmit that this might be advantageous, or would abide by his originalprinciple, that the square face carried on was the best. Mr. Lewis said, that being a resident in one of the Midland Counties,wdiere nearly all the collieries worked upon the system of the long-wall,or a modification of it, and a member of an Institute located in the Northof England, he had been induced to write the paper. Since writing it,they had increased the length of their face till now it was nearly a I * I I* M& ^ ^ Q< occ (JL < oo X o ZD occ h-o 0)
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