February 9, 1917. THE COLLIERY GUARDIAN 303 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. STEWARTS and LLOYDS LTD., 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. GLASGOW-41, Oswald Street. BIRMINGHAM—Broad Street Chambers. LONDON—Winchester House, Old Broad Street. PITWOOD, COGWOOD, SLEEPERS, Round. English Timber, or cut to any size, all kinds. Also Pitch Pine and Oregon Logs, and Half Logs, second-hand (nearly as good as new), 4 ft. to 30 ft. long. Short from 3s. per cube, long from 3s. 6d. per cube. Also other new and second-hand Timber, Boards, &c., at Bristol, Swansea, Porthcawl, Hull, and Leicester. Prices, carriage paid, on application for any kind timber or manufactured woodwork. JENNINGS & CO. Ld., Timber Merchants, General Woodworkers, 825, Pennywell-rd., Bristol, & other branches U.K. pYou Will TiW ThisValve BECAUSE it’s THE “BETALL” RENEWABLE A. G. THORNTON Ld., Paragon Works, 19, King St. West, MANCHESTER. PRATCHITT BKOTMERS, Denton Ironworks, CARLISLE. PUMPING, WINDING and HAULING ENGINES. .fl. ■W- It’s made in the Steam Users’ Interest for High Pressures and Superheated Steam. SEND FOR CATALOGUES FREE. Est. 1877. Over 2,00O British Steam Users are now using the ” BETALL” Valves. JAMES BALDWIN & CO , KEIGHLEY. Engineers and Founders. PATENTEES and MANUFACTURERS OF SURVEYING & DRAWING INSTRUMENTS. Illustration is of one of our Patent MINING DIALS. A modern instrument constructed on scientific principles. Send for Illustrated Catalogue. The short leg will be found of great service. Purchasers’ Guide to Advertisers* Specialities—(continued). GA8-TE8TINC Lamps—Lampes grisoumttriques Ackroyd and Best Ld., Morley, Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co, Ld., Eccles Siebe, Gorman and Co. Ld., Westminster Gas Tubes and Fittings—Tuyaux it accessoins d gaz Lewis, Edwin, and Sons, Wolverhampton Scottish Tube Co. Ld.,34, Bobertaon-st., Glasgow Stewarts and Lloyds Ld., Birmingham A Glasgow Gas Valves—Soupapes d gaz Blakeborougb, J., and Sons, Brighouse, Yorks. Haslam and Stretton Ld., Cardiff GAUGE CLASSES—Tubes de niveau d'eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmuna-pl., Aldersgate, E.C. Hop kin son, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E.-C., Ld., Dudley Treasure, J. B., & Co., 8 & 12, Vauxhall-rd., L’pool. Cauce Class Protectors—prot«c- trices pour les in dicat eurs 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—fndicateurs de niveau Baldwin, James, and Co., Keighley, Yorks Blakeborovgh, J , and Sons, Brighouse, Yorks. Hopkinson, J., and Co. Ld., Huddersfield GEARING—Bngremiges Bridge, David, A Co. Ld., Castleton, Manchester 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 Leweliin’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 SonsLd., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Girders (Iron and Steel)—Poutr.Ues m fir it en acier Bayliss, Jones A Bayliss Ld., Wolverhampton Daglish. Bobt.. and Co. Ld., St. Helens, Lancs. Henderson and Glass, Liverpool 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 (Ture Rods Enamels) Fabricants de verre (tubes, bagues, Emails) Guilbert-Martin, 9, Edmund-pl., Aldersgate, E.C. Governors (Engine)—Rtguiateurs Evans, Joseph. A Sons (Wol.) Ld., Wolverhampton 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., Caxton House, Westminster Theedam, E. C., Ld., Dudley Greasers ( Automatic)—Graisseurs automatiques Ackroyd A Best Ld., Morley. Yorks. Evans and Dodd, Cannock, Staffs Grinding Machinery—Broyenvrs Bradley Pulverizer Co., 37, Walbrook, E.C. Hardy Patent Pick Co. Ld., Sheffield “Jeffrey”—Hugh Wood A Co. LcL, N’caatle-on-T. Johnson. W.. A Sons (Ti**eda) Ld.. Armlfiv, Patent Lightning Crusher Co. Ld., 114a, Rose- bery-avenue, E.C. Scholefield, Rd., 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—Tambours a traction Be ver, Dorling and Co. Ld., Bradford Bridge, Daviu, & Co. Ld., Castleton, M^l Chester Bumsted and Chandler Ld., Hednesford, Stans Daglish, Bobert, and Co. Ld., St. Helens, Lance. 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, Richard, 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 Youngs, Byland-street Works, Birmingham Headgears—Chassis a moiettes Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Head, Wrightaon and Co. Ld., Stockton-on-Tees Goodall, Clayton and Co. Ld., Hunslet, Leeds Spencer and Co. Ld., Melksham, Wilts Heading Machines— 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., Sperm ymoor, Co. Durham Goodall, Clayton and Co. Ld., Hunslet, Leeds Hardy Patent Pick Co. Ld., Sheffield Head, Wrightaon 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 Helical Gearing (Double) Power Piant Co. Ld., West Drayton, Middlesex HOISTS—M onte-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 Youngs, Byland-street Works, Birmingham Hooks or Links (Safety)—Crochets de s^rett 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. La., Sheffield Simon-Carves Ld., 20, Mount-street, Manchester Spencer and Co. Ld., Melksham, Wilts Theedam, E. C., Ld., Dudley HOSE—Tuyaux flexibles Blakeborovgh, J., and Sons, Brighouse, Yorks. Electric Hose and Rubber Co. Ld., 55, Caxton House, Westminster Hardy Patent Pick Co. Ld., Sheffield Mining Engineering Co. Ld., Sheffield Roddaway, F., A Co. IxL, Pendleton, Manchester Rmton, Holdsworth & Co. Ld., Sheffield Willcox, W. H.,ACo. Ld., 82-38, Southwark-st., S.E, Hydraulic Machinery—Machines hydrauiiques Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Hathorn, Davey and Co. Ld.. Leeds Hadfields Ltd., Hecla & East Hecla W’ks, Sheffield Middleton, Bobert, A Co., Sheepscar F'nacj, .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, By land-street Works, Birmingham Hygrometers-Hyrometres 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 COODS—Articles en caoutchouc Electric Hose and Rubber Co. Ld., 55, Caxton House, Westminster, S.W. Beddaway, F., A Co. Ld., Pendleton, Manchester Indicators (Steam Engine)—indwateurs a essais Davis, John, and Son (Derby) Ld., Derby Nalder Bros, and Thompson Ld., 97a, Dalston- lane, N.E. INDUCED DRAUCHT FANS-Tiroge 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 Turbon Patent Fan Co. Ld., Llanelly INJECTORS AND EJEOTORR—Injectews it ajpirateur. Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H., A Co. Ld.,32-38,South wark-st.,S.E. INSTRUCTION (POSTAL)— Bnseignement par corre- spondence Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Cambrian Mining School, Porth Iron and Brass Founders-po^*-... im de laiton B’akeborough, J., ard Sons, Brighouse. Yorks. Chorley Railway 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—Uers et amors 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 (Hydraulic)—Cries hydrauliaues Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Byland-street Works, Birmingham JlM CROWS—Presses 1 cintrer let rails Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. 0., Ld., Dudley Youngs, Byland-street Works, Birmingham Jointing Cement—am&nt a jointures Hall and Hall. 47, Lc ad enhall-street, E.C. Taylor, 8. T., and Sons, Scotswood-on-Tyne J0I8T8 (Rolled Steel—(Poutrelles en acier lamini Scott, Walter, Ld., Leeds Steel Works, Leeds Kepr (for Winding CAGE8)-Toq«ts Wood, John, and Sons Ld., Wigan Lamp Cleaning Machines—Machines a 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 — Brasses a nettoyer ia 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—Chemin^es 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., Aberdare Lamp Oil Filling Machines—Machines a rempiir les lampes Ack-rovd and Best Ld.. 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) Rallumeurs pour lampes de mine Ackroyd and Best Ld., Morley, near Leeds Protector Lamp and Lighting Co. Ld., Eccles Teale, W. E., and Co. Ld., Swinton, Lancs. Thomas, E., and Williams Ld., Aberdare Lamps (Ard)— Lampes d arc Haslam and Stretton Ld., Cardiff Theedam, E. C„ Ld., Dudley Lamps (ELEOTRIO)—Lampes flectriques 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 stireti fl.ee triques British Insulated and Helsby Cables Ld., Prescot “ Ceag ” Miners’ Supply Co. Ld., 9, Harp-lane, E.C. 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 de sHntt Ackroyd and Best Ld., Morley, near Leeds “ Ceag ” Miners’ Supply Co. Ld., 9, Harp-lar e.E.C Davis, John, and Son (Derby) Ld. Derby Naylor, John, Central Brass Wo rks, Wigan Pearson’s Electric Miners’ Lamp Co. Ld., Marsh- gate-lane, Stratford, London, E. 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