The Case of Measurements in the London Coal Trade
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Westray Story a Predictable Path to Disaster
3 . // ^V7 / C‘H- The Westray Story A Predictable Path to Disaster Report of the Westray Mine Public Inquiry Justice K. Peter Richard, Commissioner Volume One November 1997 LIBRARY DEPARTfvtEr,T Or NATURAL RESOURCES. \ HALIFAX, NOVA SCOTIA \ ^V 2,2,4- VJ. I Published on the authority of the Lieutenant Governor in Council c, by the Westray Mine Public Inquiry. © Province of Nova Scotia 1997 ISBN 0-88871-465-3 Canadian Cataloguing in Publication Data Westray Mine Public Inquiry (N.S.) The Westray story: a predictable path to disaster Includes bibliographical references. Partial contents: v.[3] Reference - v.[4] Executive summary. ISBN 0-88871-465-3 (v.l) - 0-88871-466-1 (v.2) - 0-88871-467-X ([v.3])-0-88871-468-8 ([v.4]) 1. Westray Mine Disaster, Plymouth, Pictou, N.S., 1992. 2. Coal mine accidents—Nova Scotia—Plymouth (Pictou Co.) I. Richard, K. Peter, 1932- II. Title. TN806C22N6 1997 363.11’9622334'0971613 C97-966011-4 Cover: Sketch of Westray mine by Elizabeth Owen Permission is hereby given by the copyright holder for any person to reproduce this report or any part thereof. “The most important thing to come out of a mine is the miner.” Frederic Le Play (1806-1882) French sociologist and inspector general of mines of France » At 5:20 am on 9 May 1992 the Westray mine exploded taking the lives of the following 26 miners. John Thomas Bates, 56 Trevor Martin Jahn, 36 Larry Arthur Bell, 25 Laurence Elwyn James, 34 Bennie Joseph Benoit, 42 Eugene W. Johnson, 33 Wayne Michael Conway, 38 Stephen Paul Lilley, 40 Ferris Todd Dewan, 35 Michael Frederick MacKay, 38 Adonis J. -
The Stannaries
THE STANNARIES A STUDY OF THE MEDIEVAL TIN MINERS OF CORNWALL AND DEVON G. R. LEWIS First published 1908 PREFACE THEfollowing monograph, the outcome of a thesis for an under- graduate course at Harvard University, is the result of three years' investigation, one in this country and two in England, - for the most part in London, where nearly all the documentary material relating to the subject is to be found. For facilitating with ready courtesy my access to this material I am greatly indebted to the officials of the 0 GEORGE RANDALL LEWIS British Museum, the Public Record Office, and the Duchy of Corn- wall Office. I desire also to acknowledge gratefully the assistance of Dr. G. W. Prothero, Mr. Hubert Hall, and Mr. George Unwin. My thanks are especially due to Professor Edwin F. Gay of Harvard University, under whose supervision my work has been done. HOUGHTON,M~CHIGAN, November, 1907. CONTENTS INTRODUCTION purpose of the essay. Reasons for choice of subject. Sources of informa- tion. Plan of treatment . xiii CHAPTER I Nature of tin ore. Stream tinning in early times. Early methods of searching for ore. Forms assumed by the primitive mines. Drainage and other features of medizval mine economy. Preparation of the ore. Carew's description of the dressing of tin ore. Early smelting furnaces. Advances in mining and smelt- ing in the latter half of the seventeenth century. Preparation of the ore. Use of the steam engine for draining mines. Introduction of blasting. Pit coal smelting. General advance in ore dressing in the eighteenth century. Other improvements. -
American and BRITISH UNITS of Measurement to SI UNITS
AMERICAN AND BRITISH UNITS OF MEASUREMENT TO SI UNITS UNIT & ABBREVIATION SI UNITS CONVERSION* UNIT & ABBREVIATION SI UNITS CONVERSION* UNITS OF LENGTH UNITS OF MASS 1 inch = 40 lines in 2.54 cm 0.393701 1 grain gr 64.7989 mg 0.0154324 1 mil 25.4 µm 0.03937 1 dram dr 1.77185 g 0.564383 1 line 0.635 mm 1.57480 1 ounce = 16 drams oz 28.3495 g 0.0352739 1 foot = 12 in = 3 hands ft 30.48 cm 0.0328084 1 pound = 16 oz lb 0.453592 kg 2.204622 1 yard = 3 feet = 4 spans yd 0.9144 m 1.09361 1 quarter = 28 lb 12.7006 kg 0.078737 1 fathom = 2 yd fath 1.8288 m 0.546807 1 hundredweight = 112 lb cwt 50.8024 kg 0.0196841 1 rod (perch, pole) rd 5.0292 m 0.198839 1 long hundredweight l cwt 50.8024 kg 0.0196841 1 chain = 100 links ch 20.1168 m 0.0497097 1 short hundredweight sh cwt 45.3592 kg 0.0220462 1 furlong = 220 yd fur 0.201168 km 4.97097 1 ton = 1 long ton tn, l tn 1.016047 t 0.984206 1 mile (Land Mile) mi 1.60934 km 0.62137 1 short ton = 2000 lb sh tn 0.907185 t 1.102311 1 nautical mile (intl.) n mi, NM 1.852 km 0.539957 1 knot (Knoten) kn 1.852 km/h 0.539957 UNITS OF FORCE 1 pound-weight lb wt 4.448221 N 0.2248089 UNITS OF AREA 1 pound-force LB, lbf 4.448221 N 0.2248089 1 square inch sq in 6.4516 cm2 0.155000 1 poundal pdl 0.138255 N 7.23301 1 circular inch 5.0671 cm2 0.197352 1 kilogram-force kgf, kgp 9.80665 N 0.1019716 1 square foot = 144 sq in sq ft 929.03 cm2 1.0764 x 10-4 1 short ton-weight sh tn wt 8.896444 kN 0.1124045 1 square yard = 9 sq ft sq yd 0.83613 m2 1.19599 1 long ton-weight l tn wt 9.964015 kN 0.1003611 1 acre = 4 roods 4046.8 -
A Trip Over the Intercolonial Including Articles on the Mining Industries Of
LP F 5012 JL TBIP OVERthe INTERCOLONIAL INCLUDING ABTICIES 01 THE MINING. DIDUSTBIES NOVA SCOTIA & NEW BRUNSWICK A DESCRIPTION OF THE CITIES OF ST. JOHN AND HALIFAX. FRED. J. HAMILTON, {Special Correspondent) REPRINTED FftOM THE MONTREAL, " GAZETTE." MONTREAL: « GAZETTE" POINTING HOUSE, NEXT THE POST OFFICE, 1876. ZEST^BXjISHIEID 1871. GENERAL INSURANCE AGENCY, 51 PRINCESS STREET, ST. JOHN, N. B. Fire, Life, Marine, Accident and Guarantee In- surance effected on the most favorable terms. KEPKESENTS HOME COMPANIES ONLY. The Citizen's Insurance Company of Canada, HEAD OFFICE: MONTREAL, Established 1S64- FIRE, LIFE, ACCIDENT AND GUARANTEE, Capital $2,000, 000.00 Deposited with Dominion Government 103,000.00 Sik Hugh Allan, President. AdolpH Roy, • - Vice-President. DIRECTORS. Robt. Anderson, N- B Corse, Henry Lyman. Canada Fire and Marine Insurance Company, HEAD OFFICE: HAMILTON, ONT. Established 1874. Capital ;'.;. $5,000,000.00 Deposited with the Dominion Government • • 50.000-00 John Winer, Esq., (of Messrs. J. Winer & Co.) President. Geo- Roach, Esq., Mayor of Hamilton, . \ vVice-Fresidents.„, t>„„„-j„ * 1). Thompson, Esq., M. P., County of Haldimand .. \ Chas. D. Cory, Secretary and Manager- The Mutual Life Association of Canada, HEAD OFFICE: HAMILTON, ONI. THE ONLY PURELY MUTUAL CANADIAN LIFE COMPANY. Deposited with Dominion Government $50,000-00. LOCAL. DIRECTORS. For New Brunswick. For Nova Scotia. For P. E. Island. His Honor S. L. Tilley, Hon. Alex. K- ith, P. C. L. Hon. L. C. Owen. Lieut. Gov. New Bruns'k. Hon. Jeremiah Northup, Hon. Thos. W. Dodd. C. H. Fairweather, J sq., Hon-H.W. Smith, At. Gen. Hon. D. Laird, Min. Interior. -
~ Coal Mining in Canada: a Historical and Comparative Overview
~ Coal Mining in Canada: A Historical and Comparative Overview Delphin A. Muise Robert G. McIntosh Transformation Series Collection Transformation "Transformation," an occasional paper series pub- La collection Transformation, publication en st~~rie du lished by the Collection and Research Branch of the Musee national des sciences et de la technologic parais- National Museum of Science and Technology, is intended sant irregulierement, a pour but de faire connaitre, le to make current research available as quickly and inex- plus vite possible et au moindre cout, les recherches en pensively as possible. The series presents original cours dans certains secteurs. Elle prend la forme de research on science and technology history and issues monographies ou de recueils de courtes etudes accep- in Canada through refereed monographs or collections tes par un comite d'experts et s'alignant sur le thenne cen- of shorter studies, consistent with the Corporate frame- tral de la Societe, v La transformation du CanadaLo . Elle work, "The Transformation of Canada," and curatorial presente les travaux de recherche originaux en histoire subject priorities in agricultural and forestry, communi- des sciences et de la technologic au Canada et, ques- cations and space, transportation, industry, physical tions connexes realises en fonction des priorites de la sciences and energy. Division de la conservation, dans les secteurs de: l'agri- The Transformation series provides access to research culture et des forets, des communications et de 1'cspace, undertaken by staff curators and researchers for develop- des transports, de 1'industrie, des sciences physiques ment of collections, exhibits and programs. Submissions et de 1'energie . -
U.S. Metric Study Interim Report
U.S. METRIC STUDY INTERIM REPORT THE CONSUMER imHHMHPHr U.S. METRIC SUBSTUDY REPORTS The results of substudies of the U.S. Metric Study, while being evaluated for the preparation of a comprehensive report to the Congress, are being published in the interim as a series of NBS Special Publications. The titles of the individual reports are listed below. REPORTS ON SUBSTUDIES NBS SP345-I: International Standards (issued December 1970, SD Catalog No. CI 3. 10:345-1, Price $1.25) NBS SP345-2: Federal Government: Civilian Agencies (issued July 1971, SD Catalog No. CI 3. 10:345-2, price $2.25) NBS SP345-3: Commercial Weights and Measures (issued July 1971, SD Catalog No. CI 3. 10:345-3, price $1.00) NBS SP345-4: The Manufacturing Industry (issued July 1971, SD Catalog No. C 1 3. 10:345-4, price $ 1 .25) NBS SP345-5 Nonmanufacturing Businesses (in press) NBS SP345-6 Education (in press) NBS SP345-7 The Consumer (this publication) NBS SP345-8 International Trade (in press) NBS SP345-9 Department of Defense (issued July 1971, SD Catalog No. C 1 3. 1 0:345-9, price $ 1 .25) NBS SP345-10: A History of the Metric System Controversy in the United States (in press) NBSSP345-11: Engineering Standards (issued July 1971, SD Catalog No. C 1 3. 1 0:345-1 1 , price $2.00) NBSSP345-12: Testimony of Nationally Representative Groups (issued July 1971, SD Catalog No. C13. 10:345-12, price $1.50) COMPREHENSIVE REPORT ON THE U.S. METRIC STUDY NBS SP345: To be published in August 1971 Those publications with catalog numbers have already been issued, and may be purchased from the Superintendent of Documents, Government Printing Office, Washington, D.C. -
Units of Weight and Measure : Definitions and Tables of Equivalents
Units of Weight and Measure (United States Customary and Metric) Definitions and Tables of Equivalents United States Department of Commerce National Bureau of Standards Miscellaneous Publication 233 THE NATIONAL BUREAU OF STANDARDS Functions and Activities The functions of the National Bureau of Standards are set forth in the Act of Congress, March 3, 1901, as amended by Congress in Public Law 619, 1950. These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent with these standards; the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scientific and technical problems; invention and development of devices to serve special needs of the Government; and the development of standard practices, codes, and specifications. The work includes basic and applied research, development, engineering, instrumentation, testing, evaluation, calibration services, and various consultation and information services. Research projects are also performed for other government agencies when the work relates to and supplements the basic program of the Bureau or when the Bureau's unique competence is required. The scope of activities is suggested by the fisting of divisions and sections on the inside of the back cover. Publications The results of the Bureau's work take the form of either actual equipment and devices -
THE ARMOURER and HIS CRAFT from the Xith to the Xvith CENTURY by CHARLES FFOULKES, B.Litt.Oxon
GQ>0<J> 1911 CORNELL UNIVERSITY LIBRARY BOUGHT WITH THE INCOME OF THE SAGE ENDOWMENT FUND GIVEN IN 1891 BY HENRY WILLIAMS SAGE Cornell University Ubrary NK6606 .F43 1912 The armourer and his craft from the xith C Date iSIORAGE 3 1924 030 681 278 Overs olin a^(Mr;= :3fff=iqfPfr.g^h- r^ n .^ I aAri.^ ^ Cornell University Library XI The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924030681278 THE ARMOURER AND HIS CRAFT UNIFORM WITH THIS VOLUME PASTE By A. Beresford Ryley < 'A w <1-1 K 2; < > o 2 o 2; H ffi Q 2; < w K o w u > w o o w K H H P W THE ARMOURER AND HIS CRAFT FROM THE XIth TO THE XVIth CENTURY By CHARLES FFOULKES, B.Litt.Oxon. WITH SIXTY-NINE DIAGRAMS IN THE TEXT AND THIRTY-TWO PLATES METHUEN & CO. LTD. 36 ESSEX STREET W.G. LONDON Kc tf , First Published in igi2 TO THE RIGHT HONOURABLE THE VISCOUNT DILLON, Hon. M.A. Oxon. V.P.S.A., Etc. Etc. CURATOR OF THE TOWER ARMOURIES PREFACE DO not propose, in this work, to consider the history or develop- ment of defensive armour, for this has been more or less fully I discussed in v^orks which deal with the subject from the historical side of the question. I have rather endeavoured to compile a work which will, in some measure, fill up a gap in the subject, by collecting all the records and references, especially in English documents, which relate to the actual making of armour and the regulations which con- trolled the Armourer and his Craft. -
Imperial Units
Imperial units From Wikipedia, the free encyclopedia Jump to: navigation, search This article is about the post-1824 measures used in the British Empire and countries in the British sphere of influence. For the units used in England before 1824, see English units. For the system of weight, see Avoirdupois. For United States customary units, see Customary units . Imperial units or the imperial system is a system of units, first defined in the British Weights and Measures Act of 1824, later refined (until 1959) and reduced. The system came into official use across the British Empire. By the late 20th century most nations of the former empire had officially adopted the metric system as their main system of measurement. The former Weights and Measures office in Seven Sisters, London. Contents [hide] • 1 Relation to other systems • 2 Units ○ 2.1 Length ○ 2.2 Area ○ 2.3 Volume 2.3.1 British apothecaries ' volume measures ○ 2.4 Mass • 3 Current use of imperial units ○ 3.1 United Kingdom ○ 3.2 Canada ○ 3.3 Australia ○ 3.4 Republic of Ireland ○ 3.5 Other countries • 4 See also • 5 References • 6 External links [edit] Relation to other systems The imperial system is one of many systems of English or foot-pound-second units, so named because of the base units of length, mass and time. Although most of the units are defined in more than one system, some subsidiary units were used to a much greater extent, or for different purposes, in one area rather than the other. The distinctions between these systems are often not drawn precisely. -
English Customary Weights and Measures
English Customary Weights and Measures Distance In all traditional measuring systems, short distance units are based on the dimensions of the human body. The inch represents the width of a thumb; in fact, in many languages, the word for "inch" is also the word for "thumb." The foot (12 inches) was originally the length of a human foot, although it has evolved to be longer than most people's feet. The yard (3 feet) seems to have gotten its start in England as the name of a 3-foot measuring stick, but it is also understood to be the distance from the tip of the nose to the end of the middle finger of the outstretched hand. Finally, if you stretch your arms out to the sides as far as possible, your total "arm span," from one fingertip to the other, is a fathom (6 feet). Historically, there are many other "natural units" of the same kind, including the digit (the width of a finger, 0.75 inch), the nail (length of the last two joints of the middle finger, 3 digits or 2.25 inches), the palm (width of the palm, 3 inches), the hand (4 inches), the shaftment (width of the hand and outstretched thumb, 2 palms or 6 inches), the span (width of the outstretched hand, from the tip of the thumb to the tip of the little finger, 3 palms or 9 inches), and the cubit (length of the forearm, 18 inches). In Anglo-Saxon England (before the Norman conquest of 1066), short distances seem to have been measured in several ways. -
Appendix C. General Tables of Units of Measurement
Handbook 44 – 2016 Appendix C – General Tables of Units of Measurement Table of Contents Appendix C. General Tables of Units of Measurement ........................................................ C-3 1. Tables of Metric Units of Measurement ..................................................................................................... C-3 Units of Length ............................................................................................................................................... C-3 Units of Area .................................................................................................................................................. C-3 Units of Liquid Volume .................................................................................................................................. C-4 Units of Volume ............................................................................................................................................. C-4 Units of Mass .................................................................................................................................................. C-4 2. Tables of U.S. Customary Units of Measurement ..................................................................................... C-4 Units of Length ............................................................................................................................................... C-4 Units of Area ................................................................................................................................................. -
Weights and Measures Standards of the United States
r WEIGHTS and MEASURES STANDARDS OF THE C7 FTr^ E a brief history U.S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS Miscellaneous Pyblicataon 247 National Bureau of Standards MAY 2 0 1954 U.S. Prototype Kilogram 20, the standard of mass of the United States. U.S. Prototype Meter Bar 27, the standard of length of the United States from 1893 to I960. On October 14, I960, the meter was redefined in terms of a wavelength of the krypton 86 atom. EIGHTS and MEASURES S. DEPARTMENT STANDARDS F COMMERCE fhcr H. Hodges, Secretary OF THE MIONAL BUREAU F STAN D ARDS V. Astin, Director a brief history LEWIS V. iUDSON NBS Miscellaneous Publication 247 Issued October 1963 (Supersedes Scientific Paper No. 17 and Miscellaneous Publication No. 64) Fo^ sale by the Superintendent of Documents, U.S. Government Printing Office, Washinston, D.C., 20402 - 35 cents Preface In 1905, Louis A. Fischer, then a distinguished metrologist on the stafF of the National Bureau of Standards, presented a paper entitled "History of the Standard Weights and Measures of the United States" before the First Annual Meeting of the Sealers of Weights and Measures of the United States. This paper quickly came to be considered a classic in its field. It was published by the National Bureau of Standards several times— most recently in 1925 as Miscellaneous Publication 64. For some time it has been out of print and in need of up-to-date revision. The present publication covers the older historical material that Fischer so ably treated; in addition, it includes a brief summary of important later developments affecting the units and standards for length and mass.