Extract from a report on tunnelling in the USA with Conway 100 by Neville Davies

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Archive Record|Table of contents

Douglas Simpson, Colliery Manager, PapersD624

Photographs and negativesD624/2

Abercynon CollieryD624/4/1

Abernant CollieryD624/4/2

Cwmgorse CollieryD624/4/3

Llanharan CollieryD624/4/4

Nantgarw CollieryD624/4/5

Taff Merthyr CollieryD624/4/6

National Coal BoardD624/4/7

TestsD624/4/8

Locomotives and machineryD624/4/9

Battery locomotivesD624/4/9/1

Underground locomotive garagesD624/4/9/2

Conway loadersD624/4/9/3

Machinery breakdown recordsD624/4/9/4

Percussive drillingD624/4/9/5

Other reportsD624/4/9/6

Notes and report on mine cars, including comments on a prototype mine carD624/4/9/6/1

Reports for Avestor tipped rods and Atlas Diesel hard metal tipped drill steels coromant drill bitsD624/4/9/6/2

Extract from a report on tunnelling in the USA with Conway 100 by Neville DaviesD624/4/9/6/3

Report for a visit to the United Steel Co’s Dragonby Iron Ore Mine near ScunthorpeD624/4/9/6/4

ExplosionsD624/4/10

Intensive stonedriftingD624/4/11

DraftsD624/4/12

Other reportsD624/4/13

PapersD624/5

Plans, drawings, charts and diagramsD624/6

NotebooksD624/7

Handwritten notes and other papersD624/8

Social eventsD624/9

MagazinesD624/10

Catalogues and advertisementsD624/11

Information bookletsD624/12

Operating instructionsD624/13

CorrespondenceD624/14