August 28, 1914. THE COLLIERY GUARDIAN. 491 ROPE DRIVING DIPLOMAS OF HONOUR BRUSSELS and TURIN. . Illustrated Lecture on— “THE TRANSMISSION OP POWER BY ROPES.” Post Pres on Application. Telegrams: Kenyon, Dukinfield.” Telephone: 494 Ashton. LONDON OFFICE : 95 & 97, Finsbury Pavement, E.C. FOR EFFICIENCY DURABILITY USE Wm. KENYON & SONS Ltd., CHAPEL FIELD WORKS, DUKINFIELD, near MANCHESTER. EDWIN COTTAM & Co. LTD Ca>x»difF & Rotherham. LAMINATED RAILWAY CARRIAGE AND WAGON SPRINGS, VOLUTES, CONICALS, SPIRALS, &c. STEEL CASTINGS. Bute Steel and Spring Works, CARDIFF. Don Spring Works, ROTHERHAM. Don Steel Foundry, ,, 208 pages f’cap folio. Over a hundred illustrations and 60 plates (coloured). PRICE IQs. (IQs. 7d. post free). RECORD OF FIRST SERIES OF THE BRITISH COAL DUST EXPERIMENTS Conducted during 1908 and 1909 at the Altofts Experiments Station, by the Committee appointed by the Mining Association of Great Britain. PUBLISHED BY — THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. Purchasers9 Guide to Advertisers9 Specialities—(continued). Engines (Oil) —Oelmotoren—Moteurs d huile Avonside Engine Co. Ld., Bristol Beiliss and Morcom Ld., Birmingham Eobey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham Engines (Rolling Mill) — Waizwerkmaschinen— Machines pour laminoirs Daglish, Robt., and Co. Ld., St. Helens, Lancs. ENGINES (Steam)—Dampfmaschinen—Machines d vapeur Beiliss and Morcom Ld., Birmingham Bever, Dorling and Co. Ld., Bradford Bumsted and Chandler Ld., Hednesford, Staffs i Daglish, Robert, and Co. Ld., St. Helens, Lancs. Hathorn, Davey and Co. Ld., Leeds L.Lancaster and Tonge Ld., Pendleton, Manchester Llewellyn and Cubitt Ld., Pentre, R.S.O., Glam. Pulsometer Engineering Co. Ld., Reading Reavell and Co. Ld., Ipswich Robey and Co. Ld., Globe Works, Lincoln - Sandycroft Ld., Sandy croft, near Chester Stewarts and Lloyds Ld., Birmingham Stewarts and Lloyds Ld., 41, Oswald-st., Glasgow 1. Tangyes Ld., Cornwall Works, Birmingham l Walker Brothers (Wigan) Ld., Wigan .. Ward, Thos. W., Ld., Albion Works, Sheffield , Wood, John, and Sons Ld., Wigan Wootton Bros. Ld., Coalville, Leicester Worsley Mesnes Ironworks Ld., Wigan Exhaust Turbine Reducing Valves—Reduzier- ventile fur Abdampfturbinen—Soupapes reduc- trices pour turbiness d vapeur d’dhappement Auld, D., and Sons, White vale Foundry, Glasgow Royles Ld., Irlam, Manchester Exhaust Turbine Safety Valves—Sicherheits- ventile fur. Adampfturbinen—Soupapes a surety pour turbines a vapeur d’ echappement Auld, D., and Sons, White vale Foundry, Glasgow Exhibition (Colliery and Mining) — Bergbau- ausstellung—Exposition miniere EXPANSION Gear — Expansions - Vorrichtungen — Appareils de detente Daglish, Robert, and Co. Ld., St. Helens, Lancs. Wood, John, and Sons Ld., Wigan Worsley Mesnes Ironworks Ld., Wigan Explosives—Sprengstoffe—Expiosifs British Explosives Syndicate Ld., Glasgow Cotton Powder Co. Ld., 32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. Davis, John, and Son (Derby) Ld., Derby New Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow Thompson and Co., Wigan Explosives (Permitted) — Genehmigte Spreng- stoffen—Explosifs autorists Cotton Powder Co. Ld., 32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. New Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow FANS (Air PROPELLER)—Bruckventilatoren—Roues de ventilation Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. FANS (Exhaust)—Saugventilatoren—Ventilateurs d exhaure Bumsted and Chandler Ld., Hednesford, Staffs Capell Fans (George Fletcher & Co.Ld.),Litchurch, Derby Daglish, Robert, and Co. Ld., St. Helens, Lancs. Davidson and Co. Ld., Belfast Dinnendahl, R. W., Essen, Germany Fletcher, George, and Co. Ld., Litchurch, Derby Harvey, G. A. & Co. (Ldn.) Ld., Woolwich-rd., S.E. Fans (Exhaust)—continued. Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. Turbon Patent Fan Co. Ld., Llanelly Waddle Patent Fan & Engineering Co. Ld., Llanelly Walker Brothers (Wigan) Ld., Wigan FANS (VENTILATING) —Minenventilatoren — Venti- lateurs d’aerage Allen, W. G., and Sons (Tipton) Ld., Tipton Bumsted and Chandler Ld., Hednesford, Staffs. Capell Fans (George Fletcher & Co.Ld.),Litchurch, Derby Daglish, Robert, and Co. Ld., St. Helens, Lancs. Davidson and Co. Ld., Belfast Dinnendahl, R. W., Essen, Germany Fletcher, George, and Co. Ld., Litchurch, Derby Harvey, G. A., &Co. (Ldn.) Ld., Woolwich-rd., S.E. Humble, Stephen, 9, Victoria-st., London, S.W. Keith, James, and Blackman Co. Ld.,27, Farring- don-avenue, London, E.C. Lewis, Wm., and Son, Bilston, Staffs. Llewellyn andCubitt Ld., Pentre, B.S.O., Glam. Theedam, E.C., Ld., Dudley Turbon Patent Fan Co. Ld., Llanelly Waddle Patent Fan & Engineering Co.Ld., Llanelly Walker Brothers (Wigan) Ld., Wigan Feed-WATER Filters — Spiesewasserfilter — Filtres d’eau d’alimentation Mather and Platt Ld., Manchester Wright’s Forge and Engineering Co. Ld., Tip ton FEED-WATER Heaters — Speisewasservorwarmer— Rechauffeurs d’eau d’alimentation Bakers (Leeds) Ld., Hunslet, Leeds Clarke, Chapman and Co. Ld., Gateshead-on-Tyne Hawksley, Wild and Co., Sheffield Lancaster and Tonge Ld., Pendleton, Manchester Royles Ld., Irlam, Manchester Tangyes Ld., Cornwall Works, Birmingham Wright’s Forge and Engineering Co. Ld., Tipton FENCING AND CATES — Umzaunungen u. Tore — Clotures et portes Bayliss, Jones and Bayliss Ld., Wolverhampton Ferro - Concrete Constructions—Eisenbeton- konstruktionen—Constructions en beton arm£ Yorkshire Hennebique Contracting Co. Ld., Leeds FILES- Feilen—Limes Allen, Edgar, and Co. Ld., Sheffield Hardy Patent Pick Co. Ld., Sheffield ’7 Nicholson, Benjamin, & Sons, Attercliffe, Sheffield FILTERS (Oil)—Oelfilter—Filtres d’huile Pulsometer Engineering Co. Ld., Reading Royles Ld., Irlam, Manchester & Theedam, E. C., Ld., Dudley - Wakefield, C. C., and Co., 27, Cannon-st., E.C. _ Willcox, W. H., and Co. Ld., London, S.E. Wright’s Forge and Engineering Co. Ld., Tipton Filters (Water and Crease)—Wasser- und Fett- filter—Filtres d’eau et de graisse Bakers (Leeds) Ld., Hunslet, Leeds Mather and Platt Ld., Manchester Pulsometer Engineering Co. Ld., Reading Royles Ld., Irlam, Manchester Wright’s Forge and Engineering Co. Ld., Tipton FlRE APPLIANCES — Feuerloscher — Extincteurs d’incendie Angus, Geo., and Co. Ld., Newcastle-on-Tyne Fell, C. A., Dronfield, near Sheffield Merryweather and Sons, 63, Long Acre, W.C. Reddaway, F., & Co. Ld., Pendleton, Manchester Valor Co. Ld., Aston Cross, Birmingham FlRE Brick Cones—Chamottekegel—C6nes rtfrac- taires Knowles, John, and Co. (Wooden Box) Ld., near Burton-on-Trent Fire Bricks Lumps and TiLts-Chamottesteine, udgl.—Briques et tuiles refractories Knowles, John, and Co. (Wooden Box) Ld., near Burton-on- Trent FIRECLAY COODS — Chamottewaren — Articles en argile refractaire Witton Firebrick Co. Ld., Darlington FIREWOOD MACHINERY — Brennholzverarbeitungs - maschinen—Machines a fabriquer le bois d’allu- mage Glover, M., and Co., Holbeck-lane, Leeds Firelighter Machinery—Feueranzunder-herstei- lungs - maschinen — Machines d. fabriquer les allume-feu Glover, M., and Co., Holbeck-lane, Leeds FlSH PLATES—Laschen—Eclisses Bute Works Supply Co. Ld., Cardiff Firth, William, Ld., Leeds Renton, B. M., and Co., Midland Works, Sheffield Shelton, Iron, Steel, & Coal Co. Ld., Stoke-on-Trent Ward, Thos. W., Ld., Albion Works, Sheffield Fittings (Iron and Steel) -zubehor aus Eisen und Stahl—Garnitures en fer et en acier Ghorley Railway Wagon Co. Ld., Chorley, Lancs. Stewarts and Lloyds Ld., Birmingham FORCED Draught— Bruckzug—Tirage ford Bennis, Ed., and Co. Ld., Little Hulton, Bolton Bumsted and Chandler Ld., Hednesford, Staffs. Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld.,27, Farring- don-avenue, London, E.C. Pillatt and Co. Ld., Stapleford, Nottingham Turbon Patent Fan Co. Ld., Llanelly FORCES—Schmiede—Forges Hardy Patent Pick Co. Ld., Sheffield Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. FORGINGS—SchmiedstOcke—Fers forges Bagnall, W. G., Ld., Stafford Carron Co., Carron, Falkirk Chorley Railway Wagon Co. Ld., Chorley Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Benton, B. M., and Co., Midland Works, Sheffield Walker Bros. (Wigan) Ld., Wigan Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Yorkshire Engine Co. Ld., Sheffield Friction Clutches — Friktionskuppiungen—Em- brayages d friction Bever, Dorling, and Co. Ld., Bradford, Yorks Bridge, David, and Co. Ld., Castleton, Manchester Daglish, Robert, and Co. Ld., St. Helens, Lancs. Longbotham, R. H., and Co. Ld., Wakefield Nortons (Tividale) Ld., Tipton L Reavell and Co. Ld., Ipswich - Reddaway, F., & Co. Ld., Pendleton, Manchester - Theedam, E. C., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Friction Surfaces — Futter far Friktionskup - plungen, udgl.—Fourrures d’embrayages, &c. Frood, Herbert, Co. Ld., Chapel-en-le-Frith Scandinavia Belting Co.Ld., 59, Southwark-st.,S.E. Worsley Mesnes Ironworks Ld., Wigan FUEL Economisers—Kohlensparer—Economiseurs de combustible Fell, C. A., Dronfield, near Sheffield Pillatt and Co. Ld., Stapleford, Nottingham Fuel Machinery — Brennstoffebearbeitungs- maschinen—Machines d traiter les combustibles Johnson, Wm. & Sons (Leeds) Ld., Annley, Leeds Middleton, Robert, Sheepscar Foundry, Leeds Yeadon, Son and Co., Albion-place, Leeds FURNACES—Kesselfeuerungen—Foyers d chaudieres Bennis, Ed. and Co. Ld., Little Hulton, Bolton Leech, Goodall and Co., Hunslet, Leeds Pillatt and Co. Ld., Stapleford, Nottingham FURNACE Bars—Roststabe—Barreaux de grille Heywood Airtight Damper Co. Ld., Gomersal, Leeds FURNACE IRONWORK — Eisenkonstructionsteile far Feuerungsanlagen—Serrurerie pour des installa- tions de foyers Leech, Goodall and Co., Hunslet, Leeds Wood, John, and Sons Ld., Wigan FUSE IGNITERS — Zundschnuranzander — Allumages pour meches de sdrete Cotton Powder Co. Ld., 32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. Davis, John, and Son Ld. (Derby) New Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow CAS COMPRESSORS — Gaskompressoren — Compres- seurs de gaz Beiliss and Morcom Ld., Birm ngham CAS ENGINES—Gasmotoren—Moteurs d gaz British Oxygen Co. Ld., Elverton-st., Westminster Glover, M., and Co., Holbeck-lane, Leeds Robey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham CAS EXHAUSTERS — Gasabsaugvorrichtungen — Machines d aspirer les gaz Coppee Co. (Gt. Britain) Ld., Kings way, London Dinnendahl, R. W. (A.G.), Essen, Germany Koppers’ Coke Oven and Bye-Product Co.,Sheffield CAS PLANT—Gasanlagen—Installations a gaz Coal Distillation Co., Middlesbrough Coppee Co. (Gt. Britain) Ld., Kingsway, W.C. Dinnendahl, R. W., Essen, Germany • Koppers’ Coke Oven & Bye-Product Co., Sheffield • Kynoch Ld., Witton, Birmingham Mather and Platt Ld., Manchester Gas - Testing Lamps — Grubenwetterprafer — Lampes grisoumitriques Ackroyd and Best Ld., Morley, Leeds Best’s Safety Lamps Ld., Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co, Ld., Eccles Teale, W. E., and Co. Ld., Swinton, Lancs. Wolf Safety Lamp Co., Sheffield CAS Tubes AND Fittings—Gasrohren u. Zubehb Tuyaux et accessories d gaz Lewis, Edwin, and Sons, Wolverhampton Stewarts and Lloyds Ld., Birmingham & Glasgow GAS VALVES—Gasventile—Soupapes d gaz Haslam and Schontheil Ld., Bristol GAUGE Glasses — Wasserstandsgldser —Tubes de niveau d’eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl., Aldersgate, E.C. Hopkinson, J., and Co. Ld., Huddersfield Royles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. C., Ld., Dudley Treasure, J. B., & Co., 8 & 12, Vauxhall-rd., L’pool.