Pendulum Drilling-machine.
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Description
Image from page 202 of "Transactions" (1852)
Identifier: transactions53nort Title: https://www.flickr.com/photos/internetarchivebookimages/tags/bookidtransactions53nort">Transactions Year: https://www.flickr.com/photos/internetarchivebookimages/tags/bookyear1852">1852 (https://www.flickr.com/photos/internetarchivebookimages/tags/bookdecade1850">1850s) Authors: https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorNorth_of_England_Institute_of_Mining_and_Mechanical_Engineers__Newcastle_upon_Tyne">North of England Institute of Mining and Mechanical Engineers, Newcastle-upon-Tyne https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorNorth_of_England_Institute_of_Mining_and_Mechanical_Engineers__Newcastle_upon_Tyne__Report_of_the_Committee_upon_mechanical_coalcutting__1905">North of England Institute of Mining and Mechanical Engineers, Newcastle-upon-Tyne. Report of the Committee upon mechanical coalcutting, 1905 Subjects: https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectMineral_industries">Mineral industries https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectMechanical_engineering">Mechanical engineering Publisher: https://www.flickr.com/photos/internetarchivebookimages/tags/bookpublisherNewcastle_upon_Tyne">Newcastle-upon-Tyne Contributing Library: https://www.flickr.com/photos/internetarchivebookimages/tags/bookcontributorGerstein___University_of_Toronto">Gerstein - University of Toronto Digitizing Sponsor: https://www.flickr.com/photos/internetarchivebookimages/tags/booksponsorUniversity_of_Toronto">University of Toronto View Book Page: https://archive.org/stream/transactions53nort/transactions53nort#page/n202/mode/1up" rel="noreferrer nofollow">Book Viewer About This Book: https://archive.org/details/transactions53nort" rel="noreferrer nofollow">Catalog Entry View All Images: https://www.flickr.com/photos/internetarchivebookimages/tags/bookidtransactions53nort">All Images From Book Click here to https://archive.org/stream/transactions53nort/transactions53nort#page/n202/mode/1up" rel="noreferrer nofollow">view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: Fig. 8.—Hardy Katchet Drilling-machine. So established had this mode of drilling become that the oldpractical miner of that time naturally considered it necessaryfor working the Cleveland stone that the holes should have thetriangular shape A, and that it was only by his skill in drilling,with the jumper-drill, a hole with a flat-back or flat-front, flat-top, or flat-bottom, that the stone could be successfullymined. RATCHET AND HAND-MACHINE DRILLS. 17f> Experiments, however, had been made with rotary drills,which showed conclusively that a round hole could work thestone ; and the millions of holes which have since been drilled bythe compressed-air and electric drills, so successfully introducedby Mr. William Walker and Mr. A. L. Steavenson, are more thanample proof of their suitability. Text Appearing After Image: Fig. 9.—Pendulum Drilling-machine. Since 1880, mining by power-machines has made great pro-gress and at the present time about one-third of the Clevelandironstone is won by such machinery. Until 1888, very little use had been made of the hand-machinedrills. The late Mr. George Lee had tried some at the Livertonmines, and the late Mr. T. Allison, of Guisborough, had intro-duced a few ratchet-machines into the Belmont and Spawoodmines of the Weardale Iron & Coal Company, Limited. 176 RATCHET AXD HAND-MACHINE DRILLS. In 1884, owing to depression in the iron-trade, the Slapewathmines of Sir B. Samuelson & Co. were closed. It being absolutelynecessary that steps should be taken to reduce the cost of winningthe ironstone, on restarting the mines in 1886, a thoroughand exhaustive trial of the ratchet-machine was instituted. Thefirst machines were of crude construction, being fitted with loose Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work. -
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Link: https://www.flickr.com/photos/126377022@N07/14765590382/
Resource type: Image
Added by: Simon Cotterill
Last modified: 3 years, 11 months ago
Viewed: 338 times
Picture Taken: 1852-01-01T00:00:00 -
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