November 17, 1916. THE COLLIERY GUARDIAN. 979 Wrought Iron and Steel Tubes. SPECIAL JOINT. These Tubes are specially suitable for mines, being both light and strong. The Joint, as illustrated, can be easily connected, and a tube can be removed without disturbing the run Fittings of all kinds supplied. Improved Albion Loose Flange Joint. PIT PROPS. We manufacture Tubular Steel Pit Props, which are exceptionally strong and durable. They can be used repeatedly and have a high factor of safety. Lists sent on application. STEWARTS and LLOYDS LTD., GLASGOW-41, Oswald Street. BIRMINGHAM-Broad Street Chambers. LONDON-Winchester House, Old Broad Street. THORNTON’S INSTRUMENTS for the FIELD, MINE, and DRAWING OFFICE, are constructed on Scientific Principles, and are unequalled in Design and Workman- ship. The illustrations are of two of our recent patents. Send for particulars, you will be interested. Illustrated catalogue, up to 1,000 illustrations and 450 pages, the most up-to-date in the world. Sent free. A. G. THORNTON Manufacturers, Ud. Paragon Works, 19, King Street West, MANCHESTER. PRATCHITT BROTHERS, Denton Ironworks, CARLISLE. PUMPING, WINDING and HAULING ENGINES ELECTRICAL MEASURING & RECORDING INSTRUMENTS FOR MINES. . . . . . Ask for Catalogue. NALDER BROS. & THOMPSON LD., 97a. Dalston Lane, London, N.E. Look for the mark of Reliability, You WillTry IhisValve BECAUSE IT’S THE “BETALL” RENEWABLE It’s made in the Steam Users’ Interest for High Pressures and Superheated Steam SEND FOR CATALOGUES FREE. Est, 1877. Over 3,00O British Steam Users are now using the ** BETALL” Valves, JAMES BALDWIN & CO., KEIGHLEY. Engineers and Founders. Purchasers' Guide to Advertisers' Specialities—(continued). GAS-TESTING Lamps—Lampes grisoumttriques Ackroyd and Best Ld., Morley, Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co, Ld., Eccles Teale, W. E., and Co. Ld., Swinton, Lancs. Gas Tubes and Fittings—Tuyaux et acoessoires d gaz Lewis, Edwin, and Sons, Wolverhampton Scottish Tube Co. Ld., 34, Bobertson-st., Glasgow Stewarts and Lloyds Ld., Birmingham & Glasgow CAS Valves—Soupapes d gae Haslam and Stretton Ld., Cardiff GAUGE CLASSES—Tubes de niveau d’eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl., AldersgaAe, E.O. Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. 0., Ld., Dudley Treasure, J. B., A Co., 8 & 12, Vauxhall-rd., L’pool. Gauge Glass Protectors—Rnveioppes protec- trices pour les indicateurs de niveau Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. C., Ld., Dudley Woodite Company, Mitcham Common GAUGES—Ind/icateurs de niveau Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Gearing—Bngrenages British Insulated and Helsby Cables Ld., Prescot Bumsted and Chandler Ld., Hednesfora, Staffs Daglish, Robert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Lancaster and Tonge Ld., Pendleton, Manchester LeweLin’s Machine Co., 15 King square, Bristol Power Plant Co. Ld., West Drayton, Middlesex Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, and Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Girders (Iron and Steel)—Poutreiies en fer et en acier Bayliss, Jones A Bayliss Ld., Wolverhampton Daglish. Bobt.. and Co. Ld.. St. Helens, Lancs. Henderson and Glass, Liverpool Isca Foundry Co. Ld., Newport, Mon. Benton, B. M., and Co., Midland Works, Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel A Coal Co. Ld., Stoke-on-Trent Ward, Thos. W„ Ld., Albion Works, Sheffield Glass Manufacturers (Tube Rods Enamels) Fabricants de verre (tubes, bagues, Emails) Guilbert-Martin, 9, Edmund-pl., Aldersgate, E.O. Governors (Engine)—Rtguiateurs Evans, Joseph. A Sons (Wol.) Ld., Wolverhamptos Hollingdrake, Henry, and Son, Stockport Mather and Platt Ld., Manchester Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld., Cornwall Works, Birmingham GRANARY Equipment—Equipages des greniers Porteus, George, Leeds Bridge, Leeds GREASE—Schmiere— Graisses Chorley Bailway Wagon Co. Ld., Chorley, Lancs. Trier Bros. Ltd., Oaxton House, Westminster Theedam, E. C., Ld„ Dudley Greasers (Automatic)—Graisseurs automatiques Ackroyd A Best Ld., Morley. Yorks. Evans and Dodd, Cannock, Staffs Grinding Machinery-Broyeur* Bradley Pulverizer Co., 37, Walbrook, E.C. Hardy Patent Pick Co. Ld., Sheffield •• Jeffrey ’’—Hugh Wood A Co. Ld., N’castle-on-T. Johnson. W.. A Sons Ld.. Armley, Leeds Scholefield, Bd., Burley Vale, Leeds GUNPOWDER—Schiesspulver—Poudre d canon British Explosives Syndicate Ld., 124, St. Vin- cent-street, Glasgow Cotton Powder Co. Ld., 24, Walbrook,London,E.C. Curtis’s and Harvey Ld.,110, Cannon-street, E.C. Boburite and Ammonal Ld., 103, Cannon-st., E.C. HAULING Drums—Tambowrs d traction Sever, Dorling and Co. Ld., Bradford Bumsted and Chandler Ld., Hednesford, Staffs Daglish, Robert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Phillips, C. D., Newport, Mon. Spencer and Co. Ld., Melksham, Wilts Sutcliffe, Bichard, Horbury, near Wakefield Walker Bros. (Wigan), Ld., Wigan Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wootton Bros. Ld., Coalville, Leicester Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Byland-street Works, Birmingham Headgears—choses moiettes Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Head, Wrightson and Co. Ld., Stockton-on-Tees Goodall, Clayton and Co. Ld., Hunslet, Leeds Spencer and Co. Ld., Melksham, Wilts Wright’s Forge and Engineering Co. Ld., Tipton Heading Machines-Havens Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield “ Jeffrey ’’—Hugh Wood A Co. Ld., N’castle-on-T. Sullivan Machinery Co., Salisbury House, E.C. HEAP8TEAD8—Installation de sieges Coulson, M., and Co., Spennymoor, Co. Durham Goodall, Clayton and Co. Ld., Hunslet, Leeds Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Plowright Bros. Ld., Chesterfield Spencer and Co. Ld., Melksham, Wilts Walker Bros. (Wigan) Ld., Wigan Wood, John, and Sons Ld.,Brook Foundry. Wigan Wright’s Forge and Engineering Co. Ld., Tipton Helical Gearing (Double) Power P.ant Co. Ld., West Drayton, Middlesex HOISTS—Monte-Charges Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Hardy Patent Pick Co. Ld., Sheffield Bea veil and Co. Ld., Ipswich Spencer and Co. Ld., Melksham, Wilts Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Byland-street Works, Birmingham Hooks or Links (Safety)—Crochets de sdreti Humble, Stephen, 9, Victoria-street, S.W. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Wood, John, A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld., Tipton Hoppers—Tremies Baker, John, and Son, Bilston, Staffs Coulson, M„ and Co. Ld., Spennymoor Goodall, Clayton and Co. Ld., Hunslet, Leeds Harvey, G. A., A Co. (Ldn.) Ld., Woolwich-rd.,S.E. Hardy Patent Pick Co. Ld., Sheffield Simon-Oarves Ld., 20, Mount-street, Manchester Spencer and Co. Ld., Melksham, Wilts Theedam, E. 0., Ld., Dudley Wright’s Forge and Engineering Co. Ld., Tipton HOSE—Tuyaux flexibles Electric Hose and Rubber Co. Ld., 55, Caxton House, Westminster Hardy Patent Pick Co. Ld., Sheffield Mining Engineering Co. Ld., Sheffield Redd*way, F„ A Co. Ld., Pendleton, Manchester Willcox, W. H.,A0o. Ld., 32-38, South wark-st.,S.E. Hydraulic Machinery—Machines hyd/rauiiques Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Hathorn, Davey and Co. Ld., Leeds Hadfields Ld., Hecla Works, Sheffield Middleton, Bobert, A Co., Sheepscar F’ndry, Leeds Pearn, Frank, A Co. Ld., West Gorton, Manchester Pulsometer Engineering Co. Ld., Beading Sullivan Machinery Co., Salisbury House, E.C. Tangyes Ld., Cornwall Works, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Youngs, Byland-street Works, Birmingham HYOROMETERS-Hyrom^res Davis, John, and Son (Derby) Ld., Derby Nalder Bros, and Thompson Ld., 97a, Dalston* lane, N.E. INCLINE ROLLERS—Rouleaux pour plans inclines Goodall, Clayton and Co. Ld., Hunslet, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford INDIARUBBER GOODS—Articles en caoutchouc Electric Hose and Bubber Co. Ld., 55, Caxton House, Westminster, S.W. Beddaway, F., A Co. Ld., Pendleton, Manchester Indicators (Steam Engine)—indncateurs a essais Davis, John, and Son (Derby) Ld., Derby Nalder Bros, and Thompson Ld., 97a, Dalston* lane, N.E. Induced Draught Fans-Tirage induit Bumsted and Chandler Ld., Hednesford, Staffs Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld., 27, Farring don-avenue, London. E.C. Matthews & Yates Ld., Swinton, nr. Manchester Tur bon Patent Fan Co. Ld., Llanelly INJECTORS AND EJECTORS—Injecteurs et aspirateurs Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H„ A Co. Ld.,32-88,Southwark-st.,S.E . INSTRUCTION (Postal) — Bnseignement par corrr syondance Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Cambrian Mining School, Forth Iron and Brass Founders-Ptnderies de sret de laiton Chorley Bailway Wagon Co. Ld., Chorley, Lancs* Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Gosforth Foundry Co. Ld., Dronfield, nr. Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Protector Lamp and Lighting Co. Ld., Eccles Boyles Ld., Irlam, Manchester Spencer and Co. Ld., Melksham, Wilts Wood, John, and Sons Ld., Wigan IRON AND Steel—Pers et aciers Chorley Bail way Wagon Co. Ld., Chorley, Lancs. Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Bradford, Yorks Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron. Steel A Coal Co. Ld.. Stoke-on-Trent Stead, J., and Co. Ld., Manor Works, Sheffield Thompson and Co., Wigan Ward, Thos. W., Ld., Albion Works, Sheffield JACKS (HYDRAULIO)—Cries hydrauliques Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Byland-street Works, Birmingham JlM CROWS—Presses d cintrer les rails Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. 0., Ld., Dudley Youngs, Byland-street Works, Birmingham Jointing Cement-ciment d jointures Taylor, S. T„ and Sons, Scotswood-on-Tyne J0IST8 (Rolled Steel—(Poutreiies en acier lamini Scott, Walter, Ld., Leeds Steel Works, Leeds Keps (for Windinc Cages)—Toquets Wood, John, and Sons Ld., Wigan Lamp Cleaning Machines—Machines d nettoyer des lampes Ackroyd and Best Ld., Morley, near Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co. Ld., Eccles Thomas, E., and Williams Ld., Aberdare Lamp Gauze Brushes — Brosses a nettoyer u toile metallique des lampes Ackroyd and Best Ld., Morley, near Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co. Ld., Eccles Theedam, E. C., Ld., Dudley Thomas, E., and Williams Ld., Aberdare LAMP Classes—Chemindes pour lampes Ackroyd and Best Ld., Morley, near Leeds Protector Lamp and Lighting Co. Ld., Eccles Teale. W. E., and Co. Ld., Swinton, Lancs. Theedam, E. C., Ld., Dudley Thomas, E.. and Williams Ld., Ab< rdare Lamp Oil Filling Machines—Machines d rempiir les lampes Aokrevd and Beat T d.. Marley, wear Leeds Protector Lamp and Lighting Co. Ld., Eccles Teale. W. E., and Co. Ld.. Swinton, Lancs. Theedam, E. C., Ld., Dudley Thomas, E., and Williams Ld., Aberdare Lamp Re-lighting Apparatus (Underground Rallvmeurs pour lampes de mine Ackroyd and Best Ld., Morley, near Leeds Protector Lamp and Lighting Co. Ld., Eccle* Teale, W. E., and Co. Ld., Swinton. Lancs. Thomas, E.. and Williams Ld., Aberdare Lamps (Arc)—Lampes d arc Haslam and Stretton Ld., Cardiff Theedam, E. C., Ld., Dudley Lamps (Electric)—Lampes tlectriques Ackroyd and Best Ld., Morley, near Leeds •• Ceag ” Miners’ Supply Co. Ld., 9, Harp-lane London Davis, John, and Son (Derby) Ld., Derby Haslam and Stretton Ld.. Cardiff Mining Engineering Co. Ld., Sheffield Thomas, E., and Williams Ld., Aberdare Lamps (ELEOTRIO Safety)—Lampes de sdreU flee triques British Insulated and Helsby Cables Ld., Prescot ••Ceag” Miners’ Supply Co. Ld., 9, Harp-lane, London Davis, John, and Son (Derby) Ld., Derby Mining Engineering Co. Ld., Sheffield Pearson’s Electric Miners’ Lamp Co. Ld., Marsh gate-lane, Stratford, London, E. Lamps (Miners’ Safety)—Lampes