Handwritten notes about Llanharan Colliery by D. Simpson

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Archive Record|Table of contents

Douglas Simpson, Colliery Manager, PapersD624

Photographs and negativesD624/2

PapersD624/5

Plans, drawings, charts and diagramsD624/6

NotebooksD624/7

Notes on lifetime replacements, intensive drivage of level hard headings, carriage, charging and firing, loading, Llanharan notes, hand-drawn boring hole diagramsD624/7/1

National Coal Board manifold book (octavo) containing handwritten notesD624/7/2

National Coal Board manifold book (octavo) containing handwritten notes, labelled as ‘Book 2’D624/7/3

Manifold book containing notes on explosives and a to-do list for August holiday weekD624/7/4

Handwritten notes about Llanharan Colliery by D. SimpsonD624/7/5

Handwritten notes about Llanharan Colliery by D. SimpsonD624/7/6

Handwritten notes about Llanharan Colliery by D. SimpsonD624/7/7

Handwritten notes about Llanharan Colliery by D. SimpsonD624/7/8

Handwritten notes about Llanharan Colliery by D. SimpsonD624/7/9

D Simpson's student paper on Surveying Computation, Readings taken at Rheidol Valley June 1940D624/7/10

Handwritten notes on the no. 10 seam powder consumption at Llanharan Colliery by D. SimpsonD624/7/11

Handwritten notes on the cost of preparation of coal at Llanharan Colliery by D. SimpsonD624/7/12

Handwritten notes on ventilations explosion recovery by D. SimpsonD624/7/13

History of new sinkings at Abernant CollieryD624/7/14

Handwritten notes on Llanharan powder consumptionD624/7/15

Handwritten notes on time study of 60 district Llanharan CollieryD624/7/16

Handwritten notes and other papersD624/8

Social eventsD624/9

MagazinesD624/10

Catalogues and advertisementsD624/11

Information bookletsD624/12

Operating instructionsD624/13

CorrespondenceD624/14