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CORRUGATED and FLAT SHEETS and GALVANISED GOODS; TUB & CORNER PLATES; AIR PIPES and all Colliery Requirements. J. SUMMERHILL & CO., Beaver Works, WOLVERHAMPTON. THEY ARE made in the Steam Users’ Interest. SEND FOR CATALOGUE. FREE. ESTAB. 1877. Over 2,000 British Steam Users are now using the Baldwin ** BETALL ” Valves. JAMES BALDWIN & CO., KEIGHLEY, Engineers and Founders. Purchasers9 Guide to Advertisers9 Specialities—(continued). Pipe Joint Paste — Kitte fur 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)—Dampf- und Wasser- rbhre—Tuyaux d vapeur et d eau British Mannesmann Tube Co. Ld., London Wall Daglish, Robert, and Co. Ld., St. Helens, Lancs. Isca Foundry Co. Ld., Newport, Mon. Lewis, Edwin, and Sons, Wolverhampton Pulsometer Engineering Co. Ld., Reading Russell, John, & Co. Ld., Alma Tube Wks., Walsall Spencer, John, Ld., Tube Works, Wednesbury Stewarts and Lloyds Ld., Birmingham Piston Rings Standard Piston Ring and Engineering Co. Ld., Don-road, Sheffield Trist, Ronald, and Co. Ld., 4, Lloyds-avenue, E.C. PISTO N S- 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— Auge- 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) — Stahlerne Grubenstempel— Etan^ons en acier British Mannesmann Tube Co. Ld., London Wall Bute Works Supply Co. Ld., Bute Docks, Cardiff Firth, William, Ld., Leeds Henderson and Glass, Liverpool Lewis, Edwin, and Sons, Wolverhampton Migrating Pit Prop and Mining Outfit Co. Chester road, Erdington Renton, B. M., and Co., Midland Works, Sheffield 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 PlT PROPS ( Wood) —Grubenhblzer—Etonians de bois Baird, J. W., and Co., West Hartlepool Kent County Fencing Co., Crouch, Borough Green, Kent Osbeck and Co., Newcastle-on-Tyne Southern & Darwent Ld., Knott Mill, Manchester Waskett, A. J., 155, Main-street, Vancouver, B.C., Canada PIT Prop WitHDRAWERS — Stempelausiieher— Ex- tracteurs d'itanqons 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—Notizentaifein— 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)—EiembUoh u. staM- blech—Toles enfer 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 POINTS AND CROSSINGS— Weichen und Gleiskreuz- ungsweichen—Aiguilles et croisements de voie Bagnall, W. G., Ld., Stafford Firth, William, Ld., Leeds Isca Foundry Co. Ld., Newport, Mon. Mining Appliances Co., 32, Church-st., Sheffield Renton, 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 Work? Supply Co. Ld., Cardiff 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. — Vorhereitwig fur Examen—Preparation pour les examens Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Mining School, Forth, Glam. Preservative (for Plant) — Schntzanstricn— Enduit protecteur Wailes, Dove and Co. Ld., Newcastle-on-Tyne PRINTING (FOR COALAND Iron Co'S.)— Druckereim —Imprimenes Colliery Guardian Co. Ld., Holborn, E.C. PUBLIC ATION S—V e rlager—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 Mudford, J. H., & Sons, 55, Exchange-st., Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Youngs, Ryland-street Works, Birmingham Pulleys (Haulage and Shaft) — SMsibn- Poulies Be ver, Dorling and Co. Ld., Bradford, Yorks. Bridge, David, & Co. Ld., Castleton, Manchester Daglish, Robert, and Co. Ld., St. Helens, Lancs. Frost, Albert, and Co., Sheffield Green, William, & Co. (Ecclesfield) Ld., Eccles- field, near Sheffield Humble, Stephen, 9, Victoria-st., London, S.W. Fraser, Douglas, and Sons Ld., Arbroath King, John, and Co., 38, Boar-lane, Leeds Llewellyn and Cubitt Ld., Pentre, R.S.O., Glam. Spencer and Co. Ld., Melksham, Wilts Thompson and Southwick Ld., Tam worth Walker Bros. (Wigan) Ld., Wigan Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan PULLEYS (Pit Head)—Fbrderseilscheiben—Molettes Be ver, Dorling and Co. Ld., Bradford Daglish, Robert, and Co. Ld., St. Helens, Lancs. Fraser, Douglas, and Sons Ld.. Arbroath Green, William, & Co. (Ecclesfield) Ld., Eccles- field, near Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Llewellyn and Cubitt Ld., Pentre, R.S.O., Glam. Mining Appliances Co., 32, Church-st., Sheffield Spencer and Co. Ld., Melksham, Wilts Thompson and Co. Wigan Thompson and Southwick Ld., Tam worth Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Pump Buckets and Strips—Pumpenkoiben u. Zubehbr—Pistons de pompes, et accessoires Daglish, Robert, and Co. Ld., St. Helens, Lancs. PUMP PACKING—Pumpenpackung—Etoupes pour les pompes Greene, Tweed and Co., Tothill-st., Westminster Harris, Francis, W., and Co., Burslem, Staffs United States Metallic Packing Co. Ld., Bradferd Willcox, W. H., & Co. Ld., 32, Southwark-st., S.E. Pumps and Pumping Machinery—Pumpen und Wasser haltung sanlag en — Pompes et appareils d’epuisement Bakers (Leeds) Ld., Hunslet, Leeds Bever, Dorling and Co. Ld., Bradford, Yorks. Bumsted and Chandler Ld., Hednesford, Staffs. Cameron, John, Ld., Salford, Manchester 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 Hathorn, Davey and Co. Ld., Leeds Isca Foundry Co. Ld., Newport, Mon. Lancaster and Tonge Ld., Pendleton, Manchester Llewellyn and Cubitt Ld., Pentre, R.S.O., Glam. 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. Pulsometer Engineering Co. Ld., Reading Robey and Co. Ld., Lincoln 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., Reading Steiger, Alph., 32, Victoria-street, S.W. 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 Sawinc Machines—Schienensage—Scies pour rails Youngs, Ryland-street Works, Birmingham Rails (Iron and Steel)—ScMenen aus Eisen u. Stahl—Rails enfer et en acier Bagnall, W. G., Ld., Stafford Bute Works Supply Co. Ld., Cardiff Firth, William, Ld., Leeds Marple & Gillott Ld., Coronation Bldgs., Sheffield Renton, 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 — Eisenbahn- Wagen u.- Wagons—Voitures et wagons de chemins defer Allen, W. G., and Sons (Tipton) Ld., Tipton Birmingham Railway Carriage and Wagon Co. Ld., Smethwick, Birmingham Bristol & S. Wales Railway Wagon Co. Ld., Bristol Cambrian Wagon Co. Ld., Cardiff Chorley Railway Wagon Co. Ld., Chorley 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, Peter boro* Bigley, Win., Bulwell, Nottingham Railway Carriages and Wagons—Continued. Rolling Stock Co., Darlington Wigan Wagon Co. Ld., Springs Branch, Wigan RAILWAY Plant — Eisenbahnanlagen — 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 Cottam, Edwin, and Co. Ld., Rotherham 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 Railway 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 Eisen bahnanlagen—Equipage pour voies ferries ilec- triques Mather and Platt Ld., Manchester Railway Wacon Associations--Vereine Eisenbahn- wagonbesitzer—Associations des propriitaires de material roulant Association of Private Owners of Railway Rolling Stock, Clarence-chambers, Gloucester Chorley Railway Wagon Co. Ld., Chorley, Lancs. Railway Wagon Financiers — Eisenbahnwagon Vermieter — Fournisseurs - louers de material roulant Bristol & S. Wales Railway Wagon Co. Ld., Bristol Chorley Railway Wagon Co. Ld., Chorley, Lancs. Lincoln Wagon and Engine Co. Ld., Lincoln Locker’s Wagon Co. Ld., New Whittington, near Chesterfield Railway Wagon Repairers — Eisenbahnwagon- reparaturwerkstdtte—Riparation de wagons Birmingham Railway Carriage and Wagon Co. Ld. Smethwick, near Birmingham Bute Works Supply Co. Ld., Cardiff Chorley Railway Wagon Co. I»d., Chorley Lancashire & Yorkshire Wagon Co..Ld., Heywood Lincoln Wagon and Engine Co. Ld., Lincoln Locker’s Wagon Co. Ld., New Whittongton, near Chesterfield Moy, Thomas, Ld., Railway Works, Peterborough Bigley, Wm., Bulwell, Nottingham Railway Wagons (Tipping)—Kippmgons—Wagom 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. Rakes (Pit)— Kratzen—Racles Baker, John, and Son, Bilston, Staffs Hardy Patent Pick Co. Ld., Sheffield REDUCING Gear—Zentratorkupplungen—Engrenagee a reduction de vitesse Angus, Geo., and Co. Ld., Newcastle-on-Tyne Bridge, David, & Co. Ld., Castleton, Manchester Brown, David, and Sons (Hudd.) Ld., Huddersfield Coventry Chain Co. Ld., Coventry Reducing Valves (Full Bore, Standard, &c.) —Reduktionsventile—Ditendeurs Auld, D., and Sons, Whitevale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Roy les Ld., Irlam, Manchester REFRIGERATORS — Kuhlmaschinen — Appareils fri- gorifiques Pulsometer Engineering Co. Ld., Reading