August 20, 1915. THE COLLIERY GUARDIAN 401 CORRUGATED and FLAT SHEETS and GALVANISED GOODS; TUB & CORNER PLATES; AIR PIPES and all Colliery Requirements. J. SUMMERHILL & CO., Beaver Works, WOLVERHAMPTON. The Colliery Ready Reckoner and Wages CALCULATOR. By JAMES IRELAND. " Will be the means of preventing many disputes between pay clerks and colliers.”—Mining Jeumal. Colliery Guardian Office. 30 & 31, Furnival-street, Holborn, London, E.C. Cloth limp, price It. 6d.; poet free, It. 7d. REflSER OVER 1,400 PAIRS SOLD. NEW PATENT N9 20901,1913. W47ZZ' tworos. ro SOL£ EVANS DODD CANNOCK. ALL BRONZE. STEAM TRAP SUITABLE FOR ANY PRESSURE. FIRST ORDER SENT ON APPROVAL PATENTEES & MAKERS: JAMES BALDWIN & CO., KEIGHLEY, Engineers & Founders. THOMPSON & CO., ------------- WIGAN, ------------- iron Merchants, Metal and Mineral Agents. RAILS OF EVERY DESCRIPTION, WITH FITTINGS COMPLETE, FOR COLLIERIES, CONTRACTORS, &c. SOLE AGENTS LN THE DISTRICT FOR THE SALE OF Wigan Coal & Iron Co.’s Siemens Steel Billets, Blooms, Bars, Angles, Bails, &c. SPECIALITY: STEEL FOR WAGON COUPLINGS. K. H. FORGE, FOUNDRY & DASIC PIG IRON. Also Spiegeleisen, Ferro-Manganese & Silico Spiegel. Nobet’s (Gelignite, Polarite, Dynobel, Ajax Powder, Monobel No. 1, Cambrlte, Victor Powder and Co, Ltd. (A1 Monobel; also Detonators, Electric Detonator Fuses, and all Blasting Appliances. Haggie Brothers Ld. Wire & Hemp Ropes. POOLEY’S PATENT WEIGHING MACHINES. Telegraphic Address—“SPIEGEL, WIGAN.” CEMENT GUN PROCESS. THE dry materials (Cement and Sand) are mixed and forced through the hose by means of compressed air. The water necessary for hydration is added at the nozzle and the hydrated material is “ shot ” into place with a nozzle velocity corresponding to a pressure head of 35 lb. per sq. inch. Write for Descriptive Booklet. WE CONTRACT FOR THE WORK, LOAN OR SELL THE GUN. The GENERAL CEMENT GUN COMPANY, 36, SOUTHAMPTON ST., STRAND, LONDON. Price 10s. (10s. 7d. post free). RECORD OF THB British Coal Dust Experiments. 128 Illustrations, consisting of Coloured Plates, Photographs, &c. THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. PIPE JOINT Paste — Kitto fnr Rohrverbindungen —Enduit pour accouplements Hopkinson, J., and Co. Ld., Huddersfield Hudson, John, & Co.’s Successors, Mansell-st., E. Taylor, S. T., and Sons, Scotswood-on-Tyne Theedam, E. C., Ld., Dudley Pipes (Steam and Water)—und Wasser- rohre—Tuyaux d vapeur et a eau Daglish, Robert, and Co. Ld., St. Helens, Lancs. Fairbanks, Morse & Co. Ld., 87, Southwark-st.,S.E. Isca Foundry Co. Ld., Newport, Mon. Lewis, Edwin, and Sons, Wolverhampton Pulsometer Engineering Co. Ld., Reading Bussell, John, & Co. Ld., Alma Tube Wks., Walsall Scottish Tube Co. Ld., 34, Robertson-st., Glasgow Stewarts and Lloyds La., Birmingham Piston Rings Standard Piston Ring and Engineering Co. Ld., Don-road, Sheffield Trist, Ronald, and Co. Ld., 4, Lloyds-avenue, E.C. PISTONS-Kolbenstange—Pistons Daglish, Robert, and Co. Ld., St. Helens, Lancs. Mather and Platt Ld., Manchester PISTON Springs — Kolbenfeder — Ressorts pour pistons Mather and Platt Ld., Manchester Pit Pony Eye and Head Guard—und Kopfschutzvorrichtung fur Grubenpferde — Coiffure protectrice pour cheveaux d’attelage Legard and Son, Leather Merchants, Barnsley Pit-prop Sharpening Machine Oxley, F., and Co., Baxterley, Atherstone PIT PROPS (Steel) — Stdhlerne Grubenstempel— Etangons en acier Atlas Mining Outfit Co., Willenhall, Staffs. Bute Works Supply Co. Ld., Bute Docks, Cardiff Firth, William, Ld., Leeds Henderson and Glass, Liverpool Lewis, Edwin, and Sons, Wolverhampton Benton, B. M., and Co., Market-place Buildings, Sheffield Scottish Tube Co. Ld., 34, Robertson-st., Glasgow Scott, Walter, Ld., Leeds Steel Works, Leeds "Shelton Iron, Steel, & Coal Co. Ld., Stoke-on-Trent Spencer, John,Ld.,Globe TubeW orks, W ednesbury Ward, Thos. W., Ld., Albion Works, Sheffield Wright’s Forge and Engineering Co. Ld., Tipton Pit Props (Supporters and Liberators) Green, James, 40a, Belle Green-lane, Ince, Wigan PIT PROPS (WOOD) —Grubenholzer—Etanqons de bois Baird, J. W., and Co., West Hartlepool Forslind, C. A., and Son, West Hartlepool Osbeck and Co., Newcastle-on-Tyne PIT Prop WiTHDRAWERS — Stempelauszieher — Ex- tracteurs d‘etan gons Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield Hodgson, E. W., & Co., 24, Norfolk-row, Sheffield PIT WATER Gauges—Grubenwasserstandsmesser— Indicateurs d’eau dans les puisards Davis, John, and Son (Derby) Ld., Derby Plates for Colliery Notices—Notizentaifeinr- Plaques d’affichage Davis, John, and Son (Derby) Ld., Derby Lawson, John, and Son, Sheffield Protector Lamp and Lighting Co. Ld., Eccles Theedam, E. C., Ld., Dudley Plates (Iron and Steel)—Eisenbiech u. stahi- blech—Toles en fer et en acier Chorley Railway Wagon Co. Ld., Chorley, Lancs Firth, Wm., Ld., Water-lane, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Stewarts and Lloyds Ld., Birmingham & Glasgow Purchasers’ Guide to Advertisersf Specialities—(continued). Points and Crossings—Weichen und Gieiskreuz- ungsweichen—Aiguilles et eroisements de voie Bagnall, W. G., Ld., Stafford Du Croo & Brauns, 53, Victoria-st., London, S.W. Firth, William, Ld., Leeds Goodwin and Co., Queen-street, Sheffield Isca Foundry Co. Ld., Newport, Mon. Mining Appliances Co., 32, Church-st., Sheffield Benton, B. M., and Co., Midland Works, Sheffield Summerson, Thomas, and Sons Ld., Darlington Ward., Thos. W., Ld., Albion Works, Sheffield PORTABLE Railways — Tragbare Eisenbahnen — Chemins de fer transportables Allen, W. G., and Sons (Tipton) Ld., Tipton Bagnall, W. G., Ld., Stafford Bute Works Supply Co. Ld., Cardiff Du Croo & Brauns. 53, Victoria-st., London, S.W. Fairbanks, Morse & Co. Ld., 87, Southwark-st.,S.E. Firth, William, Ld., Leeds Hardy Patent Pick Co. Ld., Sheffield Renton, B. M., and Co., Midland Works, Sheffield Summerson, Thomas, and Sons Ld., Darlington Preparation for Exams. — Vorbereitwng far Examen—Preparation pour les examens Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Mining School, Porth, Glam. Preservative (for Plant) — Schntzanstrich— Enduit protecteur Wailes, Dove and Co. Ld., Newcastle-on-Tyne Printing (for Coaland Iron Co’S.)—Druckereien —Imprimenes Colliery Guardian Co. Ld., Holborn, E.C. P U B L10 ATI 0 N S—Ke r lag er—Editeurs Colliery Guardian Co. Ld., Holborn, E.C. Griffin, Charles, and Co. Ld., London, W.C. Southern, T. A., Universal Mining School, Cardiff PULLEY Blocks—Flaschenzuge—Palans Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Youngs, Ryland-street Works, Birmingham Pulleys (Haulage and Shaft) — Seiischeiben— Poulies Bever, Dorling and Co. Ld., Bradford, Yorks. Bridge, David, & Co. Ld., Castleton, Manchester Daglish, Robert, and Co. Ld., St. Helens, Lancs. Fraser, Douglas, & Sons Ld., Arbroath, Scotland Frost, Albert, and Co., Sheffield Green, William, & Co. (Ecclesfield) Ld., Eccles- field, near Sheffield Humble. Steuben. 9. Victoria-st., London, S.W. Spencer and Co. Ld., Melksham, Wilts Thompson and Southwick Ld., Tamworth Walker Bros. (Wigan) Ld., Wigan Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan PULLEYS (Pit Head)—Forderseilscheiben—Molettes Bever, Dorling and Co. Ld., Bradford Daglish, Robert, and Co. Ld., St. Helens, Lancs. Fraser, Douglas, & Sons Ld., Arbroath, Scotland Green, William, & Co. (Ecclesfield) Ld., Eccles- field, near Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Mining Appliances Co., 32, Church-st., Sheffield Spencer and Co. Ld., Melksham, Wilts Thompson and Co. Wigun Thompson and Southwick Ld., Tamworth Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Pump Buckets and Strips—Pumpenkoiben u. Zubehor—Pistons de pompes, et accessoires Daglish, Robert, and Co. Ld., St. Helens, Lancs. PUMP Packing—Pumpenpackung—Etoupes pour les pompes United States Metallic Packing Co. Ld., Bradford Willcox, W. H., & Co. Ld.. 32, Southwark-st., S.E. Pumps and Pumping Machinery—Pwnpen und Wasserhaltungsanlagen — Pompes et appareils d’tpv/isement Bever, Dorling and Co. Ld., Bradford, Yorks. Bumsted and Chandler Ld., Hednesford, Staffs. Clarke, Chapman and Co. Ld., Gateshead-on-Tyne Daglish, Robert, and Co. Ld., St. Helens, Lancs. Davis, John, and Son (Derby) Ld., Derby Evans, Joseph, & Sons (Wol. Ld.), Wolverhampton Fairbanks, Morse & Co. Ld., 87, Southwark-st.,S.E. Hathorn, Davey and Co. La., Leeds Isca Foundry Co. Ld., Newport, Mon. Lancaster and Tonge Ld., Pendleton, Manchester Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Mather and Platt Ld., Manchester Middleton, Robert, Sheepscar Foundry, Leeds Pearn, Frank, & Co. Ld., West Gorton, Manchester Phillips, C. D., Newport, Mon. Pratchitt Bros. Ld., Carlisle Pulsometer Engineering Co. Ld., Beading Sandy croft Ld., Chester Shore, T., and Sons, Etruria, Stoke-on-Trent Tangyes Ld., Cornwall Works, Birmingham Willcox, W. H., & Co. Ld.,32-38,Southwark-st.,S.E. Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan PUMPS ( TURBINE) — Turbopumpen — Pompes d turbine Mather and Platt Ld., Manchester Pulsometer Engineering Co. Ld., Beading PUNCHING Bears—Lochstanzmaschinen—Perceuses Tangyes Ld., Cornwall Works, Birmingham Youngs, Ryland-street, Birmingham RAIL BENDERS—Schienenbiegemaschinen—Machines d cintrer les rails Firth, William, Ld., Leeds Hardy Patent Pick Co. Ld., Sheffield Renton, B. M., and Co., Midland Works, Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Rail Sawing Machines—Schienensdge—Scies pour rails Youngs, Ryland-street Works, Birmingham RAILS (Iron AND Steel)—Schienen aus Eisen u. Stahl—Rails en fer et en acier Bagnall, W. G., Ld., Stafford Bute Works Supply Co. Ld., Cardiff Firth, William, Ld., Leeds Goodwin and Co., Queen-street. Sheffield Marple & Gillott La., Coronation Bldgs., Sheffield Benton, B. M., and Co., Midland Works, Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel & Coal Co. Ld., Stoke-on-Trent Summerson, Thomas, and Sons Ld., Darlington Ward, Thos. W., Ld., Albion Works, Sheffield Railway Carriages and Wagons—Fisenbahn- Wagen u.- Wagons—Voiiures et wagons de chemins de fer Allen, W. G., and Sons (Tipton) Ld., Tipton Birmingham Railway Carriage and Wagon Co. Ld., Smethwick, Birmingham Bristol & S. Wales Bailway Wagon Co. Ld., Bristol Cambrian Wagon Co. Ld., Cardiff Chorley Railway Wagon Co. Ld., Chorley Du Croo & Brauns, 53, Victoria-st., London, S.W. Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Lancashire & Yorkshire Wagon Co. Ld., Heywood Lincoln Wagon and Engine Co. Ld., Lincoln Locker’s Wagon Co. Ld., New Whittington, near Chesterfield Marple & Gillott Ld., Coronation-bldgs., Sheffield Midland Railway Carriage and Wagon Co. Ld., Midland Works, Birmingham Moy, Thomas, Ld., Railway Works. Peterbore’ North Central Wagon Co. Ld., Rotherham Bigley, Wm., Bulwell Nottingham Railway Carriages and Wagons—Continued. Rolling Stock Co., Darlington Wigan Wagon Co. Ld., Springs Branch, Wigan Railway PLANT — Eisenbahnanlagon — Equipage pour chemins de fer Avonside Engine Co. Ld., Bristol Birmingham Railway Carriage and Wagon Co. Ld., Smethwick, Birmingham Bute Works Supply Co. Ld. Bute Docks, Cardiff Du Croo & Brauns, 53, Victoria-st., London, S.W Firth, William, Ld., Leeds Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Isca Foundry Co. Ld., Newport, Mon. Marple & Gillott Ld., Coronation-bldgs., Sheffield Midland Bailway Carriage and Wagon Co. Ld., Midland Works, Birmingham Renton, B. M.,and Co., Midland Works, Sheffield Shelton, Iron, Steel*Coal Co. Ld., Stoke-on-Trent Summerson, Thomas, and Sons Ld., Darlington Thompson and Co., Wigan Ward, Thos. W., Ld., Albion Works, Sheffield Youngs, Ryland-street Works, Birmingham Railway Plant (Electrical)—Eiektrische Bison- bahnanlagen—Equipage pour voice *orrios floo- triques Mather and Platt Ld., Manchester RAILWAY Wagon ASS0CIATI0N8-Keretn«Eisenbahn wagonbesitzer—Associations des proprittaires do mattrial roulant Association of Private Owners of Railway Rolling Stock, Clarence-chambers, Gloucester Chorley Railway Wagon Co. Ld., Chorley, Lancs. Railway Wagon Financiers — Eisenbahnwag* Vermieter — Fournisseurs - louers de mattria roulant Bristol & S. Wales Railway Wagon Co. Ld., Bristol Chorley Railway Wagon Co. La., Chorley, Lancs. Lincoln Wagon and Engine Co. Ld., Lincoln Locker’s Wagon Co. Ld., New Whittington, near Chesterfield North Central Wagon Co. Ld., Rotherham Railway Wagon Repairers — Eisenbahnwagon reparaturwerkstdtte—Reparation de wagons Birmingham Railway Carriage and Wagon Co. Ld.. Smethwick, near Birmingham Bute Works Supply Co. Ld., Cardiff Chorley Railway Wagon Co. Ld., Chorley Lancashire & Yorkshire Wagon Co. Ld., Heywood Lincoln Wagon and Engine Co. Ld., Lincoln Locker’s Wagon Co. Ld., New Whittongton, neat Chesterfield Moy, Thomas. Ld., Railway Works, Peterborough North Central Wagon Co. Ld., Botherham Bigley, Wm., Bulwell, Nottingham Railway Wagons (Tipping)—Kippwagons—Wagone basculants Allen, W. G., and Sons (Tipton) Ld., Tipton Bagnall, W. G., Ld., Stafford. Bute Works Supply Co. Ld., Bute Docks, Cardiff Chorley Railway Wagon Co. Ld., Chorley, Lancs Du Croo & Brauns, 53, Victoria-st., London, S.W Goodwin and Co., Queen-street, Sheffield Rakes (Pit)—Kratzen— Racles Baker, John, and Son, Bilston, Staffs Reducing Gear—Zentratorkupplungen—Engronagos d reduction de vitesse Bridge, David, * Co. Ld., Castleton, Manchester Brown, David, and Sons (Hudd.) Ld., Huddersfield Coventry Chain Co. Ld., Coventry Reducing Valves (Full Bore, Standard, Ao.) —Reduktionsventile—Dttendeurs Auld, D., and Sons, Whitevale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester REFRIGERATORS — Kuhlmaschinon—Appareils fri- gorifiques Pulsometer Engineering Co. Ld., Reading