June 16, 1916. THE COLLIERY GUARDIAN 1163 QUALITY in SWITCH GEAR. LIQUID SWITCH GEAR of HIGH- CLASS MAKE and GOOD DESIGN. WRITE for LIST No. 60 with PRICES and OUTPUTS J. H. HOLMES & GO., Newcastle-on-Tyne. FERRO-CONCRETE LINING YEARS of STUDY and EXPERIENCE HAVE BROUGHT MY SYSTEM OF CEMENTATION TO PERFECTION. TO COLLIERY PROPRIETORS. Shafts sunk, tunnels driven, and other mining constructions carried out in difficult and very wet ground by the best method. Success guar- anteed. 18 shafts completed in England, and 7 in progress. Ferro-Concrete Lining a speciality. Feeders of water in shafts or levels effectually treated. ALBERT FRANCOIS, Telegrams—“ Francois, Doncaster," White House Chambers, DONCASTER. Telephone—4 08 Doncaster. HIPKINS’ PATENT STEEL RIVETLESS SLEEPER, and Railways. THE MOST EFFECTIVE AND ECONOMICAL STEEL RIVETLESS COMBINED CHAIR & SLEEPER IN THE MARKET. No Loose Parts. No Rivets. MUCH CHEAPER THAN WOOD SLEEPERS TO-DAY. MADE TO SUIT ANY GAUGE. Delivery 7 to 14 days i from receipt of order. MADE TO FIT ANY SECTION OF RAILS. w^lo WILLIAM BICKLEY, Bloxwich, Walsall. Purchasers’ Guide to Advertisers’ Specialities—(continued). Rakes (Pit)—Bades Baker, John, and Son, Bilston, Staffs REDUCING Gear—Engrenage d reduction de vitesse Coventry Chain Co. Ld., Coventry Reducing Valves (Full Bore, Standard, Ac.) —Ddtendeurs Auld, D., and Sons, Whitevale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester REFRIGERATORS — waretie/ur gorifiques Pulsometer Engineering Co. Ld., Reading Reinforced Concrete Midland Counties Reinforced Concrete Co., 39, Newhall-street, Birmingham Risque Apparatus—Appareils de sauvetage British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. IE8PIR AT0R8—Respirateurs British Oxygen Co. Ld., Elverton-st., Westminster Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Rivets—Bwote Baker, John, and Son, Bilston, Staffs Bayliss, Jones A 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 ROOK Drills—Perforatrices 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 Hardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield Mining Engineering Co. Ld., Sheffield Sullivan Machinery Co., 814, Salisbury House, E.C. Rollers and Pulleys (Haulage)—Rouleau* poulies pour appareils d’att diage Crowther,Henry, & SonsLd., Cleckheaton, Yorks Hadfields Ld., Hecla Works. Sheffield Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Renton, B. M., and Co., Sheffield Wood, John, and Sons Ld., Wigan Rolling Stock (Railway) North Central Wagon Co. Ld., Botherham Roofs and Outdoor Buildings -ToUutm et bdtiments Goodall, Clayton and Co. Ld., Hunslet, Leeds •flea Foundry Co. Ld., Newport. Mon. Trussed Concrete Steel Co. Ld., 64, Caxton House, Westmin«ter, S W. Wootton Bros. Ld., Coalville, near Leicester Wright’s Forge and Engineering Co. Ld., Tipton ropes (Cotton Driving)—cordages en cotton Hag?ie, R. Hood, A Son Ld., Newcastle on-Tyne ienyon, Wm., and Sons Ld.-, Dukinfield ROPES (DRIVING)-Cdbles de trans mission Haggie, B. Hood, & Son Ld., Newcistl'-on-Tyne ffenyon, W., A Sons Ld., Dukinfield, Manchester R0PE8 (Hemp AND Manilla)—Cordigw de chanvre et de manille Rope Preservative—Enduit vrotecteur pour cables R0PE8 (Wire)—Cordes mdtalliques 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. Maggie Brothers Ld.. Gateshead-on-Tyne Haggie, R. Hood, & Son I d.. Newcastle-on-Tyne Latch and Batchelor Ld., Hay Mills, Birmingham Thompson and Co., Wigan ROPEWAYS (Aerial)— Transports tdriens parcdbles British Ropeway Engineering Co. Ld., 7, Mincing- lane. London, E.C. Oradock. George, and Co. Ld., Wakefield Haggie, B Hood, & Son Ld., Newcastle on-Tyne Johnson and Phillips Ld„ Charlton, Kent Rubber-Covered Rollers— Rouleaux avec garni- ture en caoutchouc Electric Hose and Rubber Co. Ld., 55, Caxton House, Westminster Beddaway, F., A Co. Ld., Pendleton, Manchester Sacks and Bags—Soo« et Mches Saws and Sawing Appliances—Sdes et apparels de sciage 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 Screwing Machines - Machines d filter 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’dgout Mather and Platt Ld., Manchester iHAFTINQ— Arbres de trans nission 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—Pontage de puits Francois, Albert, Whitehouse-chambers, Don- caster Trefor Boring A Sinking Co., Bank Chambers, 329, High Holborn, London, E.C. SHEET IRON—Toles Harvey, G. A., A Co. (Ldn.) Ld., Woolwich-rd., S.E. Lewis, Wm., and Son, Bilston, Staffs. Theedam, E. C., Ld., Dudley Sheet Metal Works (for Cylihder Casings)— Revdtement de idle pour cylindres Baker, John, and Son, Bilston Kenyon, Wm., and Sons Ld., Dukinfield Rhot-Firing Batteries and Gables-Appareils et cables I’amorqage British Explosives Syndicate Ld., Glasgow dritish Insulated and Helsby Cables Ld., Lancs. Uurtis’s and Harvey Ld., 110, Cannon-street,E.C. Oavis, John, and Son (Derby) Ld., Derby Taslam and Stretton Ld., Cardiff Johnson and Phillips Ld., Charlton, Kent Jfew Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow Shovels and Shovel Trees—Peiies et accessoires Biker, 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)— Pelles de chargement pour c handier es Pell C. A., Dronfield noar Sheffield SIDINGS—Lignes de raccordement Bagnall, W. G., Ld., Stafford Benton, B. M., and Co., Market-place Building”, Sheffield Summerson, Thomas, and Sons Ld., Darlington Ward, Thos. W., Ld., Albion Works, Sheffield Signalling Apparatus (Visual)—stgnaux mmeis Davis, John, and Son (Derby) Ld., Derby Neil, J. A J., A Co., 93, Hope-street, Glasgow Sutcliffe, Bichard, Horbury, Wakefield Theedam, E. J., Ld., Dudley Wood, John, and Sons Ld., Wigan Sleepers (Iron and steel) —Traverses mfer et en acier Allen, W. G., and Sons (Tipton) Ld., Tipton Bagnall, W. G., Ld., Stafford Baird, J. W., and Co., West Hartlepool Bickley, Wm., Eclipse Sleeper Works, Bloxwich, Walsall Bute Works Supply Co. Ld., Cardiff Benton, B. M., and Co., Midland Works, Sheffield Smiths* Tools -Outiis 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 Wright’s Forge and Engineering Co. Ld., Tipton SMOKE Helmets—Casques protecteurs contre fumdes Mining Engineering Co. Ld., Sheffield Siebe, Gorman and Co. Ld., Westminster, S.E. Spanners Fastnut Ld., 115, Newgate-street, London SPEED-REDUCING Gears-Engrenages d reduction de vitesse Brown, David, A Sons (Hudd.) Ld., Huddersfield Wood, John, and Sons Ld., Wigan Sphincter Crip Armoured Hose—Tuyaw amis Beddaway, F., A Co. Ld., Pendleton, Manchester Springs—Ressorts Lancaster and Tonge Ld., Pendleton, Manchester Wigan Wagon Co. Ld., Springs Branch, Wigan St AM Pl N cs—Estampages Baker, John, and Son, Bilston, Staffs Chorley Bail way Wagon Co. Ld., Chorley Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Lowmoor Co. Ld., Lowmoor Ironworks, Bradford STEAM Experts —Spdcialistes en tout ce qui concern* la vapeur Fell, C. A., Dronfield, near Sheffield Princeps A 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 Stewarts and Lloyds Ld., Birmingham A Glasgow Steam Mains and Pipe Installations - Uondmtes de vapeur Stewarts and Lloyds Ld., Birmingham A Glasgow Steam - Saving Appliances — JZconomiseurs de vapeur Boyles Ld., Irlam, Manchester STEAM Traps—Purgeurs de vapeur Auld, D., and Sons, White vale Foundry, Glasgow Baldwin. James, and Co., Keighley, Yorks. Hopkinson, J., and Co. Ld., Huddersfield Lancaster A Tonge Ld., Pendleton, Manchester Princeps A 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—vbitures autos a vapeur Mann’s Patent Steam Cart and Wagon Co. Ld., Hunslet, Leeds Steam Winches—Treuiis d vapeur Clarke, Chapman A 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 Oradock, 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’hani Mining Engineering Co. Ld., Sheffield Shelton Iron, Steel A Coal Co. Ld., Stoke-on-Trent Stewarts and Lloyds Ld., Birmingham & Glasgow Thompson and Co., Wigan Steel Blooms, Billets—Loupes et Ungots 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 Tin BARS—Bidons a t6les de fer-blanc Scott, Walter, Ld., Leeds Steel Works, Leeds Stencil Plates, Steel Stamps, &c.—Patrons poinqons, &c. Lawson, John, and Sons, 26, Carver-lane, Sheffield Prynr, Ed., and Son, 112/116, Rockingham-street, Sheffield Stockbrokers. Chapman. Wm., and Co., Wheeler Gate, Notting- ham Stokers ‘Machine). Benni", Ed., and Co. Ld., Little Hulton, Bolton Stone Breakers -Casse-pierres Htdfields Ld., Hecla Works. Sheffield Hardy Patent Pick Co. Ld., Sheffield Johnson, Wm., A Sons (Leeds) Ld., Armley, Leeds Stonedust Grinding Plant—Broyeurs (poussiere de schistes) Fletcher, George, and Co. Ld., Litchurch, Derby “ Jeffrey’’—Hugh Wood A Co. Ld., N’castle-on-T. Job ison, Wm.,ASons (Leeds) Ld., Armley, Leeds Stoneware ( Sanitary ) — Gres sanitatres 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 Steel Works, Leeds Wright’s Forge and Engineering Co. Ld., Tipton Sulphate of Ammonia Plant — Appareils a recuperation du sulfate d’ammoniaque Coppee Co. (Gt. Britain), Kings way, London Koppers’ Coke Oven A Bye-Product Co., Sheffield Simon-Carves Ld., 2C, Mount-street, Manchester