File:Transactions (1852) (14577128188).jpg

Identifier: transactions12nort (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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65 wall; it bears considerable resemblance to a deputys horned tram,both in size and appearance. The piston works, by a short connectingrod, a crank or quadrant on a vertical shaft: on the same shaft isattached a large coal pick, which by this means swings in a horizontalplane, in a very similar manner as when used by the miner. The manner of working is as follows:—The workman in charge ofthe machine is seated at X on the opposite end to the pick, with thehandle of the slide valve in one hand, and the other on a handle, which,by means of tooth gearing, acts on the axle of the carriage and propelsthe machine; in front of him at Y is a light; this being directed intothe kirving, enables him to see distinctly the action of the machine, andhe is able to advance or retire the machine, or to repeat the blow againon the same spot, in case of meeting with iron pyrites or other obstruc-tion. The general distance between each cut of the pick is about 1inch j the depth of the kirving with one

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