August 6, 1915. THE COLLIERY GUARDIAN 301 IB 1 I ELECTRICAL OR MECHANICAL (To comply 'writk* Home Office Reg illations, Rule 95). Theedam’s Patent Electrical Indicating Signal Apparatus Mechanical or Electrical CANCELLING GEAR. Our Signal Apparatus & Bells have been sub- mitted to the Home Office, and we are permitted to say they are of the opinion that they carry out the requirements of the Coal Mines Regu- lation Act. This is the utmost that the Home Officf^viU give^ authority for any maker to state. This System is Simple and Effective. i i gjMVMwe (f.C.THEEDAM L”) DUDLEY c r? PATENT CONTACT BOX TO WORK Wof these signal sets i are in use at the collieries owned by one firm. Write for prices and references. SIGNALLING Fl' 3?/menm| Zl. ' fei.JL1' Vlot/eR ALSO SOLE MAKERS OF INDICATING SIGNAL BELLS Linneker’s and Adams’ Patent MECHANICAL PNEUMATIC SINGLE WIRE. SIGNAL CANCELLING APPARATUS SHOWING INSIDE working parts. with indicator. for Visib|e and Audible Signalling in Mines Send,for illustrated list . THEEDAM ZLta., DUDLEY. and Collieries. and full information to ■ « • " " ~ 5 PERFORATED PLATES FOR COAL SEPARATING PROCESS. THOMAS HUDSON LTD., Sheepford Iron Works, COATBRIDGE. Recently Published. On the Question of “ Hot Boxes.” Crown octavo. THE UPKEEP OF PRIVATE OWNERS’ WAGONS. 13 y Illustrated by Original Drawings and Photographs. Price 6d. ; Post Free 7d. The Colliery Guardian Co. Ltd., 30 & 31, Furnival Street, Holborn, London, E.C. ALL BRONZE. STEAM TRAP SUITABLE FOR ANY PRESSURE. FIRST ORDER SENT ON APPROVAL. PATENTEES & MAKERS: JAMES BALDWIN & CO., KEIGHLEY, Engineers & Founders. Purchasers* Guide to Advertisers* 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)—Damp/- and Wasser- rbhre—Tuyaux d vapour et d 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 Russell, 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. PISTO N S—Kolbenstdnge—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—Aug.- 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 PlT 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 Renton, 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 TubeWorks, Wednesbury 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 PlT PROPS ( Wood) —Grubenholzer—Etangons de bois Baird, J. W., and Co., West Hartlepool Forslind, C. A., and Son, West Hartlepool Osbeck and Co., Newcastle-on-Tyne Pit Prop WlTHDRAWERS — Stempelauszieher — Ex- tracteurs d’ttanqons Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield Hodgson, E. W., & Co., 24, Norfolk-row, Sheffield PlT 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)—Eisenbiech u. stahi- blech—T6les 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 POINTS AND CROSSINGS— Weichen und Gleiskreuz- 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 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 defer 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. — Vorbereitmg fur Examen—Preparation pour les examens Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Mining School, Forth, Glam. Preservative (for Plant) — Schntnamtrich— Enduit protecteur Wailes, Dove and Co. Ld., Newcastle-on-Tyne Printing (for Coaland Iron Co’S.)—Druckenim —Imprimenes Colliery Guardian Co. Ld., Holborn, E.C. PUBLIC AT ION S—Fe 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 Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Youngs, By land-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. Stenhen. 9. Victoria-st.. London, S.W. 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)—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. 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. 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., Bradferd Willcox, W. H., & Co. Ld«, 32, Southwark-st., S.E. Pumps and Pumping Machinery—Pumpen und Wasserhaltung sanlag on — Pompes et appareils d’tpuisement 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 Peam, Frank, & Co. Ld., West Gorton, Manchester Phillips, C. D., Newport, Mon. Pratchitt Bros. Ld., Carlisle Pulsometer Engineering Co. Ld., Reading Sandy croft Ld., Chester Shore, T., and Sons, Etruria, Stoke-on-Trent Tangyes Ld., Cornwall Works, Birmingham Willcox, W.H..& Co. Ld.,32-38,South wark-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 PUNCHING BeARS—Lochstansmaschinen—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—Soies 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 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- Wagon u.- Wagons—Voitures 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 Railway 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. La., 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., Bui well. 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 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 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 'errtes tloe- triques Mather and Platt Ld., Manchester Railway Wagon Associations-VersineEisenbahn wagonbesitzer—Associations des proprittaires de material roulant Association of Private Owners of Bailway Rolling Stock, Clarence-chambers, Gloucester Chorley Railway Wagon Co. Ld., Chorley, Lancs. Railway Wagon Financiers — Eisenbahnwagor Vermieter — Fournisseurs ■ louers do mat/ria roulant Bristol & S. Wales Railway Wagon Co. Ld., Bristol Chorley Railway Wagon Co. Ld., Chorley, Lanos. 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., Rotherham Bigley, Wm., Bulwell, Nottingham Railway Wagons (Tipping)—Kippwagons—Wagons 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—Engrenages a 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, &c.) —Re duktionsv entile—Dftendeurs Auld, D., and Sons, White vale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Refrigerators — Kuhlmaschinen — Appareils gorifiques Pulsometer Engineering Co. Ld., Readin