An Illustrated Account of the Equipment of a Colliery Winding over 4,000 tons of Coal per Diem.

An Illustrated Account of the Consett Silica Brick Plant and the first Wilputte Ovens to be installed in Europe.

A few features in connection with the re-equipment work recently carried out by the Allerdale Colliery Co. Ltd. are illustrated and described.

We describe and illustrate some Features of Pelton Colliery, Pelton Fell, Co. Durham, Special Reference being made to the Boiler Plant and System of Longwall Working.

The Boring Work Preliminary to Shaft Sinking by the Freezing Process is described in connection with a New Undertaking of Londonderry Collieries Limited.

The Electrification of the Wearmouth Coal Company's Wearmouth and Hylton Collieries is Described and Illustrated.

A Brief Account is given by J. L. Henrard, I.E.T.Lg., of the Freezing Equipment, and the Operations Incidental to Freezing the Strata, for the New Shafts being Sunk by The Londonderry Collieries Limited, at Seaham.

An account is given of the "Murton" Compressed-Air-Operated Coal-Cutting and Hewing Machine.

Some Features of the Re-equipment Work undertaken by the Ashington Coal Co. Ltd., are briefly described and illustrated, and Details are given of a New Colliery Township being built at Lynemouth.

Some Features of the Re-equipment Work undertaken by the Ashington Coal Co. Ltd., are briefly described and illustrated, and Details are given of a New Colliery Township being built at Lynemouth.

Two New Shafts have been sunk at Annfield Plain by the Holmside & South Moor Collieries Limited.

An Outline is given of the Plant Erected by the Newcastle-on-Tyne Electric Supply Co. Ltd. at their Dunston Power Station for the Low-Temperature Treatment of Coal before its Use in Steam Boilers.

An Illustrated Description is given of the Building and its Equipment.

Brief details are given of the Surface Equipment installed at the two New Pits sunk by Londonderry Collieries Ltd.

Brief particulars are given of the Reconstruction Scheme initiated by Pelaw Main Collieries Ltd., situate at Birtley, in the County of Durham.

The Horden Collieries Ltd. have recently installed an interesting Boby Plant for the Treatment of Boiler Feed Water.

The Horden Collieries Ltd. have added a Dry-Cleaning Plant and Pulverised-Fuel Boilers to their Equipment.

Backworth Collieries Ltd. have recently introduced a Complete System of Machine Mining and erected a new Bath-house.

An Unusual Design of Ropeway, four miles long, connecting two pits owned by the Co-operative Wholesale Society Ltd., is described.

Developments towards Large-Scale Operations have been made by Babcock & Wilcox Ltd. in the Low-Temperature Carbonisation Plant at Dunston.

A Highly Mechanised Mine operated by Broomhill Collieries Ltd., is described.

This Colliery is One of the Group owned by Dorman, Long & Co. Ltd.

At Dinnington Colliery, Northumberland, the support of a Difficult Roof is greatly assisted by an Automatic Chock Release.

Holmside and South Moor Collieries Ltd. have erected a Birtley Dry-Cleaning Plant at their Louisa Pit.

Additional Boiler Plant has been required owing to the opening out of the Underground Workings.

At this Group of Collieries an Extensive Scheme of Reorganisation has been Undertaken ; New Shipping facilities are being Constructed, and Electric Equipment aggregating nearly 7,000 H.P. has been added to the Plant during the last year.

At this Group of Collieries an Extensive Scheme of Reorganisation has been Undertaken ; New Shipping facilities are being Constructed, and Electric Equipment aggregating nearly 7,000 H.P. has been added to the Plant during the last year.

A Birtley Coal-Cleaning Plant has recently been erected by the Ryhope Coal Co. Ltd., Co. Durham

The Consett Iron Co. Ltd., whose steel plates and sections are known all the world over, operate an interesting group of collieries.

The Hartley Main Collieries Limited have recently put to work some interesting Double-drum Winders as part of their reconstruction scheme.

Backworth Collieries Limited have erected Birtley Washing and Dry-Cleaning Plant to deal with 150 tons of coal per hour from 4-in. to zero size.

Among other improvements the Company have electrified their Boldon Colliery, and erected a Central Dry-Cleaning plant to deal with the whole of their smalls.

In this article leading particulars are given of the Electrification of Boldon Colliery.

The Ashington Coal Co. Ltd. have erected a central cleaning and grading plant incorporating both wet and dry methods

The Lambton, Hetton & Joicey Collieries Ltd. are employing two of the new Sullivan-Forty coal cutters in conjunction with Sullivan scraper loading and a gate conveyor on a double-unit face

The Cowpen Coal Co. Ltd. have adopted intensive coal mining methods, laid down new coal treatment plant and are now sinking a new pit

The Cowpen Coal Co. Ltd. have adopted intensive coal mining methods, laid down new coal treatment plant and are now sinking a new pit

Under the First Schedule of the Coal Mines General Regulations (Lighting) 1934, a minimum standard of lighting for new safety lamps is laid down. Briefly, the new Regulations provide that any new lamp introduced shall give a light at the end of nine hours continuous burning of not less than 0.4 spherical candle power for cap lamps and 0.75 spherical candle power for all other types the mean candle power over the horizontal angle of distribution shall not be less than 1.5. Provision is also made that the light shall be sufficiently and suitably distributed without giving rise to glare, and as far as practicable, without marked contrasts of light and shade. Standard conditions of tests are also to be specified. We give herewith short descriptions of those lamps which appear on the first list of types approved as meeting Schedule A for use in any part of the pit

A comprehensive scheme of reorganisation has recently been completed by the Ryhope Coal Co. Ltd. new headgears, winders, and a dry-cleaning plant have been erected and the entire surface and underground equipment electrified

A comprehensive scheme of reorganisation has recently been completed by the Ryhope Coal Co. Ltd. new headgears, winders, and a dry-cleaning plant have been erected and the entire surface and underground equipment electrified

Lambton, Hetton & Joicey Collieries Limited have put into commission a 130 ton per hour Birtley Plant incorporating Redley Conveyors and other novel features

At their Rising Sun pit the Wallsend & Hebburn Coal Co. Ltd. have erected what is probably the most complete coal preparation plant in the world

H. Stobart & Co. Ltd., a subsidiary of Pease & Partners Ltd., have erected a new Coppee washery which affords great elasticity of operation

The Birtley Co. Ltd. have brought to the commercial stage an automatic picking machine for treating coal from 2 to 8 in.

We give a précis of the Reports by Sir Henry Walker, Mr. John Brass and Mr. Joseph Jones on the Explosion at Gresford Colliery

The Hoy attachment for chain-cutting machines not only leaves a clean cut but also reduces the amount of dust carried into the mine atmosphere. A brief account is given of the performance of this interesting machine at Ashington Colliery, Northumberland.

The washery at Wingate Colliery was the first Barvoys plant to be built in this county, and is washing to within 0.1 per cent. of fixed ash in sizes down to ¼ in.

The necessity for adequate coal transport in the Northumberland and Durham coalfields resulted in the establishment of the first railway system in the world.

The necessity for adequate coal transport in the Northumberland and Durham coalfields resulted in the establishment of the first railway system in the world.

Following the outbreak of World War II the magazine concentrated on more general articles, where advances were made at specific collieries the colliery name and exact location was not referred to - just "a colliery in the North of England"

An electric winder incorporating a number of new features has been erected at a colliery in the North of England.

An electric winder incorporating a number of new features has been erected at a colliery in the North of England.

In view of the restricted supply of normal feeding stuffs it is important to consider the question of substitute foods. Pit ponies at certain collieries in the Northumberland and Durham coalfield are being fed with a ration of straw pulp to replace a portion of the hay and oats.

An historical survey of winding practice in coal mines. This instalment describes early manual, horse, and power methods of winding.

An historical survey of winding practice in coal mines. This instalment describes early manual, horse, and power methods of winding.

An historical survey of winding practice in coal mines. This instalment describes the evolution of the wire winding rope and traces the effects of improvements in steel quality, better cappings and methods of counterbalancing.

An historical survey of winding practice in coal mines. This instalment describes the evolution of the wire winding rope and traces the effects of improvements in steel quality, better cappings and methods of counterbalancing.

In this article some early forms of pit cages are described and the development of safety devices traced

In this article the development of safety detaching hooks and cage keps is traced

In this article the development of winding drum brakes is traced

A short account is given of this plan, which has received a great deal of publicity in the daily press, inasmuch as it affects the coal and coking industries

In this article the development of overwinders is discussed

We endeavour within the limits of the time and space available to give the gist of Mr. Robert Foot's comprehensive report to the colliery owners

Following the end of World War II in Europe the magazine reverts to its previous type of coverage

A special feature of the new winders at these collieries is a positive power brake designed by Robey & Co. Ltd. To overcome the limitations of the normal weight-operated brake without sacrificing the principles of failing to safety.

An abstract is given of a preliminary report by A. M. Bryan, J.P., B.Sc., on the causes and circumstances attending the explosion at the William Colliery, Whitehaven, Cumberland, on August 15, 1947.

An abstract is given of a Report by R. Yates, D.S.O., M.C., Deputy Chief Inspector of Mines, on an explosion which occurred at Louisa (including Morrison Old) Colliery, on August 22, 1947.

A central cleaning plant capable of dealing with 10,000 tons of coking coal per week, one shift working, is giving consistently good results

A review of technical progress made during the past twenty-five years, together with an estimate of probable trends

We give a summary of the first locomotive coal-haulage scheme to operate in County Durham

New products from Victor Products (Wallsend) Ltd. and Hugh Wood & Co. Ltd.

Where the life of a steam-driven pit does not justify electrification, it is often possible to effect considerable economies by improved boiler plant, steam storage and similar modifications

In the southern region of No. 3 Area, Northern (N. & C.) Division, National Coal Board, pre-vesting date projects have been extended and modified to dovetail into a very businesslike post-nationalisation scheme

In an earlier article the outline of a North Northumberland modernisation scheme was given, and the account is now continued to give details of the effect upon a particular colliery in that region

Having outlined a reorganisation scheme planned for a North Northumberland region and mentioned some details of the modifications necessary at two medium sized collieries, a description is now given of the work completed, in progress, and proposed to make this colliery one of the largest in the country

A. C. Monkhouse, B.Sc., Ph.D., F.R.I.C., Deputy Director of the Fuel Research Station, Greenwich, discusses the constituents of coal with particular reference to nitrogen, sulphur, phosphorus, chlorine, fluorine, arsenic and trace elements

In this first article, A. Roberts, M.Sc., of the Mining Department, University of Notingham, discusses the field of application of portable mine lamps and continues with reference to the types of cap-lamp headpiece now offered. Further articles will deal with other aspects of this important subject

Having discussed in a previous article the application of portable lamps underground and the types available, the author gave details of recent improvements in cap-lamp headpieces. Continuing, he now indicates the improvements that have been made in lamp batteries

We publish the substance of a report by Imperial Chemical Industries Limited on tests of various devices for arresting runaway tubs

Having discussed in previous articles the applicability of portable mine lamps and the construction of some of the more modern examples, the author concludes with a consideration of present day lamproom practice

We report on a noteworthy project that has been evolved for the dewatering of flooded areas in South-West Durham to gain access to substantial reserves of coal and to make possible the long term planning of the area

The author traces the development of transport underground from the days when coal was carried out to the time when steel rails were first introduced

A trolley locomotive installation has recently been completed at Beckermet No. 1 Mine which is owned by the Beckermet Mining Company, a subsidiary of the United Steel Company Limited, and is situated near Egremont, Cumberland ; at Beckermet is produced haematite iron ore for use in the Company's blast furnaces at Workington

Consumers in Whitehaven, Cumberland, are now receiving gas from undersea workings at Haig colliery, No. 4 Area, Northern (N & C) Division, National Coal Board

We give a brief description of the first automatic winding engine in the world to employ dynamic breaking. It has recently been put to work at Lynemouth colliery in the No. 3 Area of the Northern (N. & C.) Division of the National Coal Board

The installation of a new type of Baum washbox at Eppleton colliery, No. 2 (Mid-East Durham) Area, Durham Division of the National Coal Board, has effected savings in non-productive manpower and increased the amount of high-grade coal available for marketing

This second part of an article describing a new type of Baum washbox a Eppleton colliery No. 2 (Mid-East Durham) Area of the Durham Division continues with a description of the shale and clean-coal discharge systems, the disposal of slurry, control and the results which have been achieved

As part of the overall modernisation programme at this anhydrite mine of Imperial Chemical Industries Limited electric rotary machines are to be used for underground production drilling ; a description is given of the pneumatically-tyred drill carriage and equipment that has been developed for this purpose

Two recently installed dust-collection plants are described — one used in connection with a heapstead handling five-ton mine cars, and the second on a tippler station serving 10-cwt. tubs and its adjacent screen house.

This series of articles is based on a paper presented by the authors to the King's College Mining Society in February, 1955, describing research on the ploughability of coal seams in County Durham which is being carried out by the School of Mines, King's College, in association with the Durham Division of the National Coal Board

In this second article, the authors describe tests that have been carried out in the Bottom Busty and Brockwell seams at Morrison Busty Colliery

A description is given of Lynemouth coal preparation plant in the No. 3 Area, Northern (N & C) Division; this is believed to be the largest plant operating in Great Britain

The authors give some idea of the history, the difficulties involved and the procedure asdopted in draining methane from different coal seams

In this third and final article the authors describe tests carried out in the Low Main seam at Horden Colliery and the B seam at Waterhouses Colliery

Most of the information on which this article is based has been collected during a recent Forestry Commission survey on planted spoil heaps

In this second article the authors discuss and present records of tree growth on colliery spoil heaps and give a summary of their findings.

At Havannah Colliery, in the No. 1 Area of the Northern (N & C) Division, National Coal Board, the total output is brought to the surface by means of a cable-belt conveyor installed in an inclined drift

The article on Havannah Colliery in the No. 1 Area of the Northern (N & C) Division, National Coal Board is concluded in this second instalment which gives details of the conveying equipment in the main drift, the surface buildings, and the man riding arrangements.

An outline is given of operations at one of the largest opencast-cost sites in Britain.

To increase the mechanical coal-cleaning facilities at Horden Colliery, a 210 tons per hour coal-preparation plant erected by the Fraser & Chalmers Engineering Works of the General Electric Co. Ltd. has recently been commissioned. This plant, together with the existing Baum washer and Birtley dry cleaner, cleans the whole of the coal from the pit.

The authors describe experiments that are being carried out in the N.C.B., Durham Division to improve the handling characteristics of coal was well as increasing the bulk density by adding oil to the washed small coal.

Having described in a previous article the preparation of this site for coal production, the methods of working and the machines used, we are able to give further particulars now that Acorn Bank has reached its peak production period.

In this article, a description is given of the sinking of a new shaft at Wearmouth Colliery in the Durham Division of the N.C.B.

In the second part of this article a description is given of the winding equipment, blasting and mucking arrangements.

In the final part of this article a description is given of dirt disposal arrangements, thawing and shaft lining.

A description is given of this coastal colliery in the No. 2 Area, N.C.B. Northern (N. & C.) Division, and also an account of the reconstruction work now in progress

This article completes the description of the work being undertaken at this colliery in the No. 2 (Mid-Northumberland) Area, N.C.B., Northern (N. & C.) Division

In this article a description is given of a system of minecar spotting and marshalling using an hydraulic hoist

In this article a description is given of an extensive traffic control system installed underground to link three collieries in a centralisation scheme. It is a driver-operated system of colour light signals interlocked with each other and with the track points overs which the trains pass

A description is given of the new 400 T.P.H. coal-preparation plant at Dawdon Colliery in the No. 2 (Mid-East Durham) Area, N.C.B., Durham Division

In the fifth part of this series the authors complete their description of non-cyclic cutter loaders and give an account of the different types of coal ploughs in use underground

In this sixth part of this series the authors complete their description of coal ploughs and then consider machines for bord-and-pillar workings