March 31, 1916. THE COLLIERY GUARDIAN. 633 __ __ —— —— THE — -< ' . ’ Koppers’ Coke Oven Is undoubtedly the most successful Bye-Product Oven on the market. Since its introduction a little over 10 years ago there have been built 12,500 KOPPERS’ OVENS. KOPPERS’ OVENS ARE AT WORK HEATED BY PRODUCER GAS AND BLAST FURNACE GAS. Koppers' Direct Recovery Process IS THE SIMPLEST AND MOST EFFICIENT SYSTEM OF AMMONIA RECOVERY. PLANTS ERECTED FOR THE RECOVERY OF BENZOL & TOLUOL, FOR TAR DISTILLATION & THE MANUFACTURE OF SULPHURIC ACID. - Full particulars on application to . The Keppers* Coke Oven and Bye-Product Co., 3oi, glossop road, Sheffield. Purchasersf Guide to Advertisers’ Specialities—(continued). RAKES (PIT)—Macles Baker, John, and Son, Bilston, Staffs REDUCING Gear—Engrenage d reduction de vitesse Coventry Chain Co. Ld., Coventry Reducing Valves (Full Bore, Standard, &c.) —Dttendeurs Auld, D., and Sons, Whitevale Foundry, Glasgow Baldwin, Janies, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld,, Huddersfield Boyles Ld., Irlam, Manchester Refrigerators—Swamis fur gorifiques Pulsometer Engineering Co. Ld., Beading Reinforced Concrete Midland Counties Beinforced Concrete Co., 39 Newhall-street, Birmingham Rescue Apparatus—Appareils de sauvetage , British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Respirators—Bespirateurs British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co.Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Rivets—Swets Baker, John, and Son, Bilston, Staffs Bayliss, Jones & Bayliss Ld., Wolverhampton Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Benton, B. M., and Co., Sheffield . Theedam, E. 0., Ld., Dudley Ward, Thos. W., Ld., Albion Works, Sheffield ROCK DRILLS—Per/oratrices Aqueous Works and Diamond Bock Boring Co. Ld„ Guildford-st., York-road, Lambeth, S.E. Bute Works Supply Co. Ld., Cardiff Davis, John, and Son (Derby) Ld., Derby Diamond Coal-Cutter Co., Wakefield TTardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield Mining Engineering Co. Ld., Sheffield Sullivan Machinery Co., 814, Salisbury House, E.O. Rollers and Pulleys (Haulage)—Rouleaux et poulies pour appareils d’atttlage Bagnall, W. G.» Ld,, Stafford Crowther, Henry, & SonsLd., Cleckheaton, Yorks Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Benton, B. M., and Co., Sheffield Wood, John, and Sons Ld., Wigan Rolling Stock (Railway) North Central Wagon Co. Ld., Botherham ROOFS AND OUTDOOR BUILDINQS-To^wes et bdtiments Felber, Jucker & Co. Ld., Peter-st., Manchester Goodall, Clayton and Co. Ld., Hunslet, Leeds Isca Foundry Co. Ld., Newport, Mon. Wootton Bros. Ld., Coalville, near Leicester Wright’s Forge and Engineering Co. Ld., Tipton Ropes (Cotton Driving)—Cordages en cotton Kenyon, Wm., and Sons Ld., Dukinfield ROPES (DRIVING)—Cdbles de transmission Kenyon, W., & Sons Ld., Dukinfield, Manchester ROPES (HEMP AND Manilla)—Cordages de chanvre et de manille Rope Preservative—Enduitvrotecteur pour cdbles ROPES (Wire)—Cordes metalliques Brown, W. B„ and Co. (Bankhall) Ld., Liverpool Cooke, William and Co. Ld., Tinsley, Sheffield . Cradock, George, and Co. Ld., Wakefield Elliot, Geo., and Co. Ld., Westminster, S.W. Glover, Wm. Jas., and Co., St, Helens, Lancs. Haggie Brothers Ld., Gateshead-on-Tyne Latch and Batchelor Ld., Hay Mills, Birmingham Thompson and Co., Wigan ROPEWAYS (Aerial)—Transports adriens par cdbles Oradock, George, and Co. Ld., Wakefield Johnson and Phillips Ld„ Charlton, Kent Rubber-Covered Rollers—Rouleaux avec garni- ture en caoutchouc Beddaway, F., A Co. Ld., Pendleton, Manchester SACKS AND Bags—Sacs et bdches Saws and Sawing Appliances—Scies et appareils de sciage Scaling Tools Diamond Blower Co. Ld., 75b, Queen Victoria- street, E.O. S00VIN8 FOR COAL AND Coke—Pourches d chdrbon et a coke Baker, John, and Son, Bilston Hardy Patent Pick Co. Ld., Sheffield Theedam, E. 0., Ld., Dudley SOREWING MACHINES-Machines d fileter Frost, Albert, and Co., Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Byland-street Works, Birmingham Screws (Stretching)—Tendeurs Youngs, Byland-street Works, Birmingham Sewage Treatment Plant—Appareils pour ie traitement des eaux d’tigout Mather and Platt Ld., Manchester SHAFTING—Arbres de trans mission Crowther, Henry, & SonsLd., Cleckheaton, Yorks Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Hardy Patent Pick Co. Ld., Sheffield Lancaster and Tonge Ld., Pendleton, Manchester Phillips, C. D., Newport, Mon. Spencer and Co. Ld., Melksham, Wilts Wright’s Forge and Engineering Co. Ld., Tipton Shaft Sinkers—Fongage de puits Francois, Albert, Whitehouse-chambers, Don- caster Trefor Coring & Sinking Co., Brussels; and at 329, High Holborn, London, E.C. SHEET Iron—Tdles enfer Firth, Win., Ld., Leeds Harvey, G. A., A Co. (Ldn.) Ld., Woolwich-rd., S.E. Lewis, Wm., and Son, Bilston, Staffs. Theedam, E. 0., Ld., Dudley Sheet Metal Works (for Cylinder Casings)— Revetement de tdle pour cylindres Baker, John, and Son, Bilston Kenyon, Wm., and Sons Ld., Dukinfield Shot-Firing Batteries and Cables—Appareils st cdbles t’wnorgage British Explosives Syndicate Ld., Glasgow . British Insulated and Helsby Cables Ld., Lancs. Curtis’s and Harvey Ld., 110, Cannon-street,E.C. Davis, John, and Son (Derby) Ld., Derby Haslam and Stretton Ld., Cardiff Johnson and Phillips Ld., Charlton, Kent New Explosives Co. Ld., 62, London-wall, E.O. Nobel’s Explosives Co. Ld., Glasgow Shovels and Shovel Trees—Relies et accessoires Baker, John, and Son, Bilston, Staffs! Fell, C. A., Dronfield, near Sheffield Frost, Albert, and Co., Sheffield Hardy Patent Pick Co. Ld., Sheffield Benton, B. M., and Co., Sheffield Theedam, E. C., Ld., Dudley SHOVELS (Sprinkling)—Relles de chargement pour chaudieres Fell C. A., Dronfield near Sheffield SIDINGS—Lignes de raccordement Bagnall, W. G., Ld., Stafford Benton, B. M., and Co., Market-place Buildings, Sheffield Summer son, Thomas, and Sons Ld., Darlington Ward, Thos. W., Ld., Albion Works, Sheffield Signalling Apparatus (Visual)—signaux visueis Davis, John, and Son (Derby) Ld., Derby Neil, J. & J., & Co., 93, Hope-street, Glasgow Sutcliffe, Bichard, Horbury, Wakefield Theedam, E. 3., Ld., Dudley Wood, John, and Sons Ld., Wigan SLEEPERS (IRON AND STEEL) —Traverses en fer et en acier Allen, W. G., and Sons (Tipton) Ld., Tipton Bagnall, W. G., Ld., Stafford Baird, J/ W., and Co., West Hartlepool Bute Works Supply Co. Ld., Cardiff Firth, Wm., Ld., Greek-street, Leeds Benton, B. M., and Co., Midland Works, Sheffield SMITHS’ Tools—Outils pour forgerons Hardy Patent Pick Co. Ld., Sheffield SMITH Work—Ouvrages de forge Baker, John, and Son, Bilston, Staffs Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Weight’s Forge and Engineering’Co. Ld., Tipton SMOKE Helmets—Casques protecteurs’contre fumAes Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Spanners Fastnut Ld., 115, Newgate-street, London Speed-Reducing Gears—Rngrenages d reduction de vitesse Brown, David, & Sons (Hudd.) Ld., Huddersfield Wood, John, and Sons Ld., Wigan Sphincter Crip Armoured Hose—Tuyaux armAs Beddaway, F., & Co. Ld., Pendleton, Manchester Springs—Assorts Lancaster and Tonge Ld.j Pendleton, Manchester Wigan Wagon Co. Ld., Springs Branch, Wigan STAMPINGS—Estampages Baker, John, and Son, Bilston, Staffs Chorley Bailway Wagon Co. Ld., Ghorley Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Lowmoor .Co, Ld., Lowmoor Ironworks, Bradford STEAM Experts— Sp6cialistes en tout ce qui concerns la vapeur Fell, C. A., Dronfield, near Sheffield Princeps & Co., Sheffield Boyles Ld., Irlam, Manchester STEAM FITTINGS—Garnitures de chaudieres Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester ■ Bussell, John, and Co. Ld., Alma Works, Walsall Scottish Tube Co. Ld., 34, Bobertson-st., Glasgow Spencer, John, Ld., Tube Works, Wednesbury Stewarts and Lloyds Ld., Birmingham & Glasgow Steam , Mains and Pipe Installations — Conduites de vapeur Stewarts and Lloyds Ld., Birmingham A Glasgow S-team - Saving Appliances — ficonomiseurs de vapeur Boyles Ld., Irlam, Manchester STEAM Traps—Purgeurs de vapeur Auld, D., and Sons, Whitevale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks. Hopkinson, J., and Co. Ld., Huddersfield * Lancaster & Tonge Ld., Pendleton, Manchester Princeps & Co., Sheffield Boyles Ld., Irlam, Manchester Stewarts and Lloyds Ld., Birmingham & Glasgow United States Metallic Packing Co. Ld., Bradford Wright’s Forge and Engineering Co. Ld., Tipton STEAM Wagons—Voitures autos d vapeur Steam Winches—Treuiis d vapeur • w Clarke, Chapman & Co. Ld., Gateshead-on-Tyne Phillips, C. D., Newport, Mon. Wood, John, and Sons Ld., Wigan STEEL—Fabricants d’acier Cooke, William, and Cd. Ld., Tinsley, Sheffield Cradock, George, and Co. Ld., Wakefield Hadfields Ld., Hecla Works, Sheffield. Hardy Patent Pick Co. Ld., Sheffield Hodgson, E. W., and Co., Sheffield - Howell & Co. Ld., Brook Steel Works, Sheffield Latch and Batchelor Ld., Hay Mills, near B'ham Mining Engineering Co. Ld., Sheffield Shelton Iron, Steel & Coal Co. Ld., Stoke-on-Trent Stewarts and Lloyds Ld., Birmingham & Glasgow Thompson and Co., Wigan STEEL BLOOMS, BILLETS—Loupes et lingots en acier Cradock, George, and Co. Ld., Wakefield Benton, B. M., and Go. Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Steel Flats and Rounds—^ams et ronds en acier Scott, Walter, Ld., Leeds Steel Works, Leeds STEEL TlNBARS—Ridons d t6les defer-blanc Scott, Walter, Ld., Leeds Steel Works, Leeds Stencil Plates, Steel Stamps, &c.—Patrons, poingons, Ac. Lawson, John, and Sons, 26, Carver-lane, Sheffield Pryor, Ed., and Son, 112/116, Bockingham-street, Sheffield Stone Breakers—Casse-pierres Hadfields Ld., Hecla Works. Sheffield Hardy Patent Pick Co. Ld., Sheffield Johnson, Wm., & Sons (Leeds) Ld., Armley, Leeds Stonedust Grinding Plant—Broyeurs (poussiere de schistes) Fletcher, George, and Co. Ld., Litchurch, Derby “ Jeffrey”—Hugh Wood & Co. Ld., N’castle-on-T. Johnson, Wm.,& Sons (Leeds) Ld., Armley,Leeds Stoneware ( Sanitary ) — Gres sanitaires Bradley Pulverizer Co., 37, Walbrook, E.C. STRUCTURAL Steelwork—Constructions en acier Goodall, Clayton and Co. Ld.. Hunslet, Leeds Hardy Patent Pick Co. Ld., Sheffield Scott, Walter, Ld., Leeds Steelworks, Leeds • Wright’s Forge and Engineering Co. Ld., Tipton Sulphate of Ammonia Plant — Appareils d recuperation du sulfate d’ammoniaque Coppee COi (Gt. Britain), Kingsway, London Koppers* Coke Oven a Bye-Product Co., Sheffield Simon-Carves Ld., 2C, Mount-street, Manchester