July 28, 1916. THE COLLIERY GUARDIAN 185 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. JL-OISTDON—Winchester House, Old Broad Street. STUDY your HORSES with ECONOMY. FOOD PREPARED IN HALF THE TIME WITH HALF LABOUR. . . PATENT DUST EXTRACTORS, SIFTERS, & l MIXING MACHINERY. GEORGE PORTEUS, MILLING ENGINEER, Telegrams— TT TEX 'Epk £3 Telephone— “ Elevator, Leeds.” AJ • 3241 Two Lines. BALDWIN’S BOILERfwidINJECIOR I ■■ a 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. Est. 1877. Over 2 000 British Steam Users are now using the Baldwin “ BETALLM Valves. JAMES BALDWIN & CO., KEIGHLEY, Engineers and Founders. 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. II Denton Ironworks, CARLISLE. PRATCHITT BROTHERS, PUMPING, WINDING and MAULING ENGINES. Purchasers’ Guide to Advertisers’ Specialities—(continued). CaS-TESTING Lamps—Lampes grisoumetriques 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 accessoires a gaz Lewis, Edwin, and Sons, Wolverhampton Scottish Tube Co. Ld., 34, Bohertson-st., Glasgow Stewarts and Lloyds Ld., Birmingham A Glasgow CAS VALVE8—Soupapes d gaz Haslam and Stretton Ld., Cardiff GAUGE CLASSES—Tubes de niveau d’eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl., Aldersga-te, E.C. 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—Enveioppes 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—^ugrenuges British Insulated and Helsby Cables Ld., Prescot Bumsted and Chandler Ld., Hednesfora, Staffs Daglish, Bobert, and Co. Ld., St. Helens, Lancs. El Fraser, Douglas, and Sons Ld., Arbroath Goodall, Clayton and Co. Ld., Hunslet, Leeds Lancaster and Tonge Ld., Pendleton, Manchester Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, and SonsLd., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Yorkshire Engine Co. Ld., Sheffield 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. 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.C. Governors (Engine)—JMguiat&u/rs Evans, Joseph, A Sons (Wol.) Ld., Wolverhampton Mather and Platt Ld., Manchester Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld., Cornwall Works, Birmingham Granary Equipment—Equipages des grmiers Porteus, George, Leeds Bridge, Leeds CREA8E—Schmiere—Graisses Chorley Bail way Wagon Co. Ld., Chorley, Lancs. Trier Bros. Ltd., Carton House, Westminster Theedam, E. C., Ld., Dudley Greasers ( Automatic)—Graissews automatiques Ackroyd A Best Ld., Morley. Yorks. Evans and Dodd, Cannock, Staffs Grinding Machinery—Broyeurs 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 (Leeds) Ld., Armley, 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. Harness—Barnois HAULING DRUMS—Tambours d traction Bever, Dorling and Co. Ld., Bradford 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, A Sons Ld., Brook Foundry, Wigan Wootton Bros. Ld., Coalville, Leicester Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld.v Tip ton Youngs, Byland-street Works, Birmingham HEADGEARS—Chassis d molettes 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—Haveuses Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield “ Jeffrey”—Hugh Wood A Co. Ld., N’castle-on-T. Sullivan Machinery Co., Salisbury House, E.C. HEAPSTEA08—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 HOISTS—Monte-charges Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Hardy Patent Pick Co. Ld., Sheffield Mather and Platt Ld., Manchester 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 sarett 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 Tneedam, E. 0., Ld., Dudley Wright’s Forge and Engineering Ce. Ld., Tiptoa 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., A Co. Ld., Pendleton, Manchester Willcox, W. H.,ACo. Ld., 32-38, South wark-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 Mather and Platt Ld., Manchester 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 Hygrometers —Gyrometres 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 Chorley Bailway Wagon Co. Ld., Chorley, Lancs. Electric Hose and Bubber Go. Ld., 55, Caxton House, Westminster, S.W. Beddaway, F„ A Co. La., 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-Tirageinduit Bumsted and Chandler Ld., Hednesford, Staffs Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. Turbon Patent Fan Co. Ld., Llanelly Injectors and Ejectors—injecteurs et aspirator, 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, Forth 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 aczers Chorley Bailway Wagon Co. Ld., Chorley, Lancs. Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Bradford, Yorks 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 Thompson and Co., Wigan Ward, Thos. W., Ld., Albion Works, Sheffield Jacks (Hydraulic)—Cries hydrauliaues Hardy Patent Pick Co. Ld., Sheffieia Benton, B. M., and Co., Midland Works, Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Byland-street Works, Birmingham JlM CROWS—Presses d dntrer Us rails Hardy Patent Pick Co. Ld., Sheffield Benton, B. M., and Co., Midland Works, Sheffield Tangyes Ld., Cornwall Works, Birmingham Theedam, E. C., Ld., Dudley Youngs, Byland-street Works, Birmingham Jointing Cement—ament d jointures Hudson, John, A Co.’s Successors, Mansell-st., E. Taylor, S. T., and Sons, Scotswood-on-Tyne JOISTS (Rolled Steel— (Poutreiies en acier lamine 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 — Grosses d nettoyer la toile mttallique des lampes Ackroyd and Best Ld., Morley, near Leede 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. C., Ld., Dudley Thomas, E.. and Williams Ld., Aberdare Lamp Oil Filling Machines— Machines d rempiir les lampes Ackroyd and Bert Ld.. Mnrley. 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) Gallwmeurs 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 (Arc)—Lampes d arc Haslam and Stretton Ld., Cardiff Theedam, E. C., Ld., Dudley Lamps (Electric)—Lampe* Mectrique* Ackroyd and Best Ld., Morley, near Leeds "Ceag” Miners’ Supply Co. Ld., 9, Harp lana, 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 (Electric Safety)—Lampes de sikreu eiec- 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 de sdreu Ackroyd and Best Ld., Morley, near Leeds “ Ceag ” Miners’ Supply Co. Ld., 9, Harp-lane, London Davis, John, and Son (Derby) Id. Derby Naylor, John, Central Braes Works, 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