May 26, 1916. THE COLLIERY GUARDIAN. 1021 ---- 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. ' Pull particulars on application to --- The Koppers’ Coke Oven and Bye~Product Co., 301, GLOSSOP ROAD, SHEFFIELD. -ESSTXSSE;. Purchasers’ Guide to Advertisers’ Specialities—(continued). Hakes (Pit)—facies Baker, John, and Son, Bilston, Staffs REDUCING GEAR—« reduction de vitesse Coventry Chain Co. Ld., Coventry Reducing Valves (Full Bore, Standard, &c.) —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—Apparent fir gorifiques Pulsometer Engineering Co. Ld., Beading Reinforced Concrete Midland Counties Beinforced Concrete Co., 39, Newhall-street, Birmingham Rescue Apparatus—Apparent de sawetage British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co. Ld., Sheffield . Siebe, Gorman and Co. Ld., Westminster, S.E. Respirators—Eespirateurs British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. RlVETS-B^ets • 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. C., Ld., Dudley Ward, Thos. W„ Ld., Albion Works, Sheffield ROOK Drills—Perforatrices Aqueous Works and Diamond Bock Boring Co. Ld., Guild£ord-st., York-road, Lambeth, S.E. Bute Works Supply Co. Ld., Cardiff Davis, John, and Son (Derby) Ld., Derby. Diamond Coal-Cutter Co., Wakefield ~ Hardy 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 appareiis d’atttilage Bagnall, W. G.» Ld., Stafford Crowther,Henry, & SonsLd., Cleckheatdri, Yorks Hadfields Ld., Hecla Works, Sheffield Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Bd., 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 BuiLDiNcs-^ures et bdtiments Goodall, Clayton and Co. Ld., Hunslet, Leeds Isoa 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)-tables de transmission Kenyon, W., A Sons Ld., Dukinfield, Manchester ROPES (Hemp AND Manilla)—Cordages de chanvre etdemanille ROPE PRESERVATIVE—Bnduit protecteur pour cablet Ropes (Wire) —Cordes m6talliques Brown, W. B„ and Co. (Bankhall) Ld., Liverpoo Cooke, William and Co. Ld., Tinsley, Sheffield Oradock, 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 atriens par cdbles . British Bopeway Engineering Co. Ld., 7, Mincing- lane. London, E.C. Oradock, George, and Co. Ld., Wakefield Johnson and Phillips Ld„ Charlton, Kent Rubber-Covered Rollers—Rouleaux avec garni- ture en caoutchouc Beddaway, F., & Co. Ld., Pendleton, Manchester SA0K8 AND Bags—Sacs et baches Saws and Sawing Appliances—Sdes et apparent de tciage Scaling Tools Diamond Blower Co. Ld., 75b, Queen Victoria- street, E.C. SOOVINS FOR COAL AND Coke—Fourches d charbon et d coke Baker, John, and Son, Bilston Hardy Patent Pick Co. Ld., Sheffield Theedam, E. 0., Ld., Dudley Borewing Machines-Machines d fiieter Frost, Albert, and Co., Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Byland-street Works, Birmingham Screws (Stretching)—Tendewt Youngs, Byland-street Works, Birmingham Sewage Treatment Plant—Apparent pour traitement des eaux d’egout 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 le Francois, Albert, Whitehouse-chambers, Don-, caster . . Trefor Poring & Sinking Co., Bank Chambers, 329, High Holborn, London, E.C. SHEET Iron—Toles en fer Harvey, G. A., &Co. (Ldn.) Ld., Woolwich-rd., S.E. Lewis, Wm., and Son, Bilston, Staffs. Theedam, E. C., 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—Appareiis et cdbles l’amor gage ...< 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 TTa.sla-m and Stretton Ld., Cardiff Johnson and Phillips Ld., Charlton, Kent New Explosives Co. Ld., 62, London-wall, E.C; Nobel’s Explosives Cd. Ld., Glasgow1 Shovels and Shovel Trees—Pdies et accetsovret Baker, John, and Son, Bilston, Staff s| 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)—de char gement 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 Summerson, 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 enfer 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 Benton, B. M., and Co,, Midland Works, Sheffield Smiths’ Tools—Outns pour forgerons Hardy Patent Pick Co. Ld., Sheffield SMITH Work— Ouvrages de forge . Baker, John, and Son, Bilston, Staffs Lowmoor Co. Ld., Lowmbor Ironworks, Bradford Wright’s Forge and Engineering. Co. Ld., Tipton SMOKE Helmets—Casques protecteurs'contre fum&es Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Spanners Fastnut Ld., 115, Newgate-street, London Speed-Reducing Dears—Fngrenages a reduction de vitesse Brown, David, & Sons (Hudd.) Ld., Huddersfield Wood, John, and Sons Ld., Wigan Sphincter Crip Armoured Hose—Tuyaux armts Beddaway, F;, & Co. Ld., Pendleton, Manchester Springs—Assorts Lancaster and Tonge Ld., Pendleton, Manchester Wigan Wagon Co. Ld., Springs Branch, Wigan STAMPINGS—Estampages Baker, John, and Son, Bilston, Staffs .< Ghorley Bailway Wagon Co. Ld., Ghorley /Hardy Patent Pick Co. Ld., Sheffield : Head, WrightSon and Co. Ld., Stockton-on-Tees f Lowmoor Co. Ld., Lowmoor Ironworks, Bradford STEAM Experts — Specialistes en tout ce qui concerns la vapeur Fell, Ci A., Dronfield, near Sheffield Princeps & Co., Sheffield / . Boyles Ld., Irlam, Manchester STEAM Fittings—Garnitures de chaudieres Baldwin, James, and Co., Keighley,JYorkfT Hopkinson, J., and Co; Ld., Huddersfield ' Boyles Ld., Irlain, 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 & Glasgow Steam-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 a vapeur Steam Winches—Treuiis dvapeur 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 Co. Ld., Tinsley, Sheffield Cradock, George, and Co. Ld., Wakefield Haden and Co., Patricroft 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 Co. Sheffield « Scott, Walter, Ld., Leeds Steel Works, Leeds STEEL Flats AND Rounds—Barres et ronds en acier Scott, Walter, Ld., Leeds Steel Works, Leeds STEEL TlNBARS—^dons d toles defer-blanc Scott, Walter, Ld., Leeds Steel Works, Leeds Stencil Plates, Steel Stamps, &c.—Patrons poingons, &c. 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^caaiJfisOP-T^r-l Johnson, Wm.,& Son^^ee^)