January 12, 1917. THE COLLIERY GUARDIAN. 95 W rought 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. Iron and Steel Tubes. ■w ill! 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. PITWOOD, DOGWOOD, SLEEPERS, Bound 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. Hid.«, Timber Merchants, General Woodworkers, 825, Pennywell-rd., Bristol, & other branches U.K. Engineering Instruments FOR THE FIELD, MINE, AND DRAWING OFFICE. BALDWIN’S BOILERMNK® PRATCHITT BROTHERS, Denton Ironworks, CARLISLE. PUMPING, WINDING and HAULING ENGINES £ ? •* - • fg.r’ Contractors toiH.M] War Office and Admiralty. Send for Illustrated Catalogue. A. G. THORNTON LTD., Manufacturers, Paragon Works, 19, King Street West, MANCHESTER. Can be fixed on the Boiler, also on the Economiser. Inlet and Outlet Valves, the “ Betall ” Renewable. 3 Capacities, 2 QUARTS It’s made in the Steam Users’ Interest. SEND FOR CATALOGUE, FREE. Esti 1877. Over 2,000 British Steam Users are now using the Baldwin “ BETALL” Valves. JAMES BALDWIN & CO., KEIGHLEY. Engineers and Founders. GAS-TESTING Lamps—Lampes gristmm^triques 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 st accessoires d gaz Lewis, Edwin, and Sons, Wolverhampton Scottish Tube Co. Ld.,34, Boberteon-st., Glasgow Stewarts and Lloyds Ld., Birmingham & Glasgow Gas Valves—Soupapes a gaz Haslam and Stretton Ld., Cardiff GAUGE Glasses—Tubes de niveau d’eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl., Aldersgate, E.O. Hopkinson, 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. 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—Indicateurs de niveau Baldwin, James, and Co., Keighley. Yorks Hopkinson, J., and Co. Ld., Huddersfield Gearing—JBngrenages Bridge, David, & Co. Ld., Castleton, Manchester British Insulated and Helsby Cables Ld., Prescot Bumsted and Chandler Ld., Hednesfora, Staffs Daglish, Bobert. and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Lancaster and Tonge Ld., Pendleton, Manchester Lewellin’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)—Poutreiies en fer et en acier Bayliss, Jones & Bayliss Ld., Wolverhampton Daglish. Bobt.. and Co. Ld., St. Helens, Lancs. Henderson and Glass, Liverpool Isca Foundry Co. Ld., Newport, Mon. Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel & 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)—Rtguiatews Evans, Joseph, & Sons (Wol.) Ld., Wolverhampton 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., Caxton House, Westminster Theedam, E. 0., Ld., Dudley Greasers (Automatic)—Grais^urs automatiques Ackroyd & Best Ld., Morley. Yorks. ' Evans and Dodd, Cannock, Staffs Grinding Maohinery—Bro^urs w Bradley Pulverizer Co., 37, Walbrook, E.O. Hardy Patent Pick Co. Ld., Sheffield “ Jeffrey”—Hugh Wood* Co. Ld., N’castle-on-T. Johnson. W„ A Sons (Leeds) Ld., Armlev, Leeds Patent Lightning Crusher Co. Ld., 14a, Bose- bery-avenue, E.C. Scholefield, Ed., Burley Vale, Leeds 1 Purchasers' Guide to Advertisers' Specialities—(continued). GUNPOWDER—ScWesspulver—Poudre d canon British Explosives Syndicate Ld., 124, St. Vin- cent-street, Glasgow CottonPowder Cd. Ld., 24,Walbrook,London,E.C, Curtis’s and Harvey Ld.,110, Cannon-street, E.O. Boburite and Ammonal Ld., 103, Cannon-st., E.C. HAULING Drums—Tambours a traction Be ver, Dorling and Co. Ld., Bradford Bridge, David, & Co, Ld., Castleton, Manchester " Bumsted and Chandler Ld., Hednesford, Staffs Daglish, Bobert, 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, & 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—chassis a 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—Raveuses Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield “ Jeffrey ’’—Hugh Wood & Co. Ld., N’castle-on-T. Sullivan Machinery Co., Salisbury House, E.C. HEAP8TEAD3—Installation de sitges 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 Plant 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 Beavell and Co. Ld., Ipswich Spencer and Co. Ld., Melksham, Wilts Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, & Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Byland-street Works, Birmingham H00K8 OR LINKS (Safety)—Crochets de stireti Humble, Stephen, 9, Victoria-street, S.W. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Wood, John, & 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., & Co. (Ldn.) Ld., Woolwich-rd.,S.E. Hardy Patent Pick Co. Ld., Sheffield Simon-Carves 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 Bubber Co. Ld., 55, Caxton House, Westminster Hardy Patent Pick Co. Ld., Sheffield Mining Engineering Co. Ld., Sheffield Beddaway, F., & Co. Ld., Pendleton, Manchester Benton, Holdsworth & Co. Ld., Sneffield Willcox, W. H..A Co. Ld., 32-38, 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 Ld., Hecla Works, Sheffield Middleton, Bobert, & Co., Sheepscar F’ndry, Leeds Peara, Frank, & Co. Ld., West Gorton, Manchester Pulsometer Engineering Co. Ld., Beading Sullivan Machinery Co., Salisbury House, E.C. Tangyes Ld., Cornwall Works, Birmingham Wood, John, & Sons Ld., Brook Foundry, Wigan Youngs, Byland-street Works, Birmingham Hygrometers—Ryrometres 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 C00D8—Articles en caoutchouc Electric Hose and Bubber Co. Ld., 55, Caxton House, Westminster, S.W. Beddaway, F., & Co. Ld., Pendleton, Manchester Indicators (Steam Engine)—indicateurs a essais Davis, John, and Son (Derby) Ld., Derby Nalder Bros, and Thompson Ld., 97a, Dalston- lane, N.E. Induced Draught FANS-Tiroge induit Bn-muted. 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 Ejectors—injecteurs et aspirateurs Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H., & Co. Ld.,32-38,Southwark-st.,S.E. INSTRUCTION (Postal) — Enseignement par corre* spondance Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Cambrian Mining School, Porth Iron and Brass Founders-Fonderies de eret 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 Bailway 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 & 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 d dntrer les rails Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Youngs, Byland-street Works, Birmingham Jointing Cement—ament d jointures Taylor, S. T., and Sons, Scots wood-on-Tyne JOISTS (Rolled Steel—(Poutreiies en acier lamint Scott, Walter, Ld., Leeds Steel Works, Leeds Keps (for Winding Cages)—Toquets 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 — Crosses a nettoyer ia toile mttallique 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 Glasses—Chemintes 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. 0., Ld., Dudley Thomas, E.. and Williams Ld., Aberdare Lamp Oil Filling Machines—Machines d rem piir les lampes Aokrovd and Best T