626 THE COLLIERY GUARDIAN September 24, 1915; CONTENTS. Editorial Articles :— page Gaseous Combustion and Fuel Economy ......... 627 Mechanical Progress in 1914 ................. 627 Articles :— Gas Producers at Collieries for Obtaining Power and By-Products from Unsaleable Fuel ...... 617 Coal Mining Organisation Committee .......... 621 Compressed Air for Coal-Cutters.............. 622 The German and Austrian Coal and Iron Trades ... 624 Trade and the War............................ 625 Colliery Accidents .......................... 625 Coal Mines Inspection in 1914 ............... 633 Geological Research in the Coal Fields During 1914 .................................... 635 Labour and Wages............................. 638 Open Contracts .............................. 639 The Freight Market .......................... 640 Obituary..................................... 640 Abstracts of Patent Specifications Recently Accepted................................... 642 New Patents Connected with the Coal and Iron Trades .................................... 644 Government Publications ..................... 644 Publications Received ....................... 644 Current Science and Technology.................. 624 Notes from the Coalfields ...................... 635 Coal, Iron and Engineering Companies ........... 639 The Coal and Iron Trades ................ 625, 629—632 The By-Products Trade ....................... 625 The Tin-plate Trade ......................... 625 The London Coal Trade ....................... 632 Report of Meeting :— Institution of Mining Engineers ............. 618 Miscellanea :— Immingham Coal Exports—South Wales Institute of Engineers ................................ 618 The Use of Safety Catches.................... 621 Hull Coal Exports .................:......... 623 Partnerships Dissolved....................... 628 Grimsby Coal Exports—Mine Managers’ Certifi- cates—United States Imports and Exports of Coal ........................................ 644 The Oldest Diamond Drill Company. Established 1872. BORING foe J^INERALS. SPEED AND CERTAINTY. CYLINDRICAL “ CORES.” THE AQUEOUS WORKS AND DIAMOND ROCK-BORING Co. Ltd. Guildford St., York Road, Lambeth, London, S.E. Besides numerous other Important Contracts, completed (in 1897) the Deepest Boring in the United Kingdom to 3,500 ft. Great Experience in Boring for WATER. The Cambrian School of Mines, CEMETERY ROAD, PORTH, GLAM. Principal: WILLIAM THOMAS, M.Inst M.B., F.G.S., M.R., Society of Arts. Tutors—Staff of Highly Qualified Instructors in all subjects. an University Training at Your Own Home. Instruction and Lessons by Post for Mine Managers, Surveyors, Electricians, and Mine Inspectors. Since the coming into force of the New Mines Act 487 Students of this School have been qualified as First and Second-class Mine Managers^ 58 students have passed the Home Office Surveyors’ Exam.; 30 students are now Mines Inspectors. Candidates for the above write without; delay for free Syllabus, and book of Previous Examination Questions. (Dept. G.) CAMBRIAN MINING SCHOOL, PORTH, Glam. Briquette Machinery Ltd., Charmouth Street, LEEDS. Machinery for Briquetting Peat, Lignite, Coke, Coal, Iron, Copper, Nickel, Cement; Also Sawdust, Waste Cereals, Offals, Sewage. PATENT COAL DRIER. The UNIVERSAL MINING SCHOOL (Estab. 1883) is conducted by T. A. SOUTHERN (late H.M.I.M.) and H. W. HALBATTM (Greenwell Medallist), men qualified to prepare you for the highest mining positions. U.M.S men obtain and hold nearly all the best posts. For example, 50 of H M. Inspectors are U.M.S. men. Lessons by post only. Fees postponable during the war. Particulars on application. Syllabus and advice free. THE 50, Connaught Rd., CARDIFF. Geo, N. Dixon & Co,, 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. Wanted, competent Electrician to take charge of D.C. 500-volt plant at large collieries in S'uth Wales.— Apply, with two references, stating salary required, Box 6172, Colliery Guardian Office, 30 St 31, Furnival street, Holborn, London, E.C. / dolliery Manager and Certified Surveyor, with 25 years’ colliery experience, requires an appointment.—Box 6174, Colliery Guardian Office,30Si 31, Furnival-st., Holborn, London. E.C. VATanted, a Working Electrician to take V V charge of a D.C. plant at a colliery in North Wales; must have experience with coal cutters.—Apply, stating salary, to Box 6165, Colliery Guardian Office, 30 & 31, Furnival-street. Holborn, London, E.C. HERIOT-WATT COLLEGE, EDINBURGH. Principal—A. P. LAURIE, M.A., D.Sc. (Sometime Fellow of King’s College, Cambridge). rphe Diploma Course in Mining extends JL over three years, and is recognised by the Home Office as. equivalent to part of the underground training required for the Colliery Managers’ Certificate. The Courses in Mining are also recognised by the University of London for the B.Sc. Degree in Mining. Inclusive fee for the three years’ Diploma Course is £66. An entrance bursary of £25 per annum is offered for competition on the 28th September. Heriot Trust Offices, PETER MACNAUGHTON, S.S.C., 20, York-place, Edinburgh, Clerk. 10th August, 1915. COAL MINES ACT, 1911. Examination for Certificates as Manager and Under-Manager, and for Certificates of Qualification as Surveyor of Mines. An Examination for First and Second- class Certificates of Competency as Manager and Under-Manager of Mines will be held on the 23rd November, 1915, at Edinburgh, Newcastle- upon-Tyne, Sheffield, Wigan, Cardiff, and Birmingham. An Examination for Certificates of Qualification as Surveyor of Mines will be held at the same places on the 24th November. Candidates must, on or before the 9th October, send their names and state the district in which they are employed to the Secretary at the Home Office, Whitehall, London, S.W., from whom all particulars can be obtained. W W. WARE, Secretary to the Board for Mining Examinations. ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION- 30 & 31, Furnival Street, Holborn, London, E.C. Telegraphic Address—“ Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS Single Column (3 inches wide) : For 52 insertions 2s. 6d. insertion for each ,,13 ,, 3s. 6d. ) mch in dePth- Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. YEADONS’ LATEST PATENTED BRIQUETTE MACHINERY, For Coal, Coke, Iron and other Ores. YEADON, SON & CO., Engineers, LEEDS, Have a World-wide Reputation, and 38 Years’ Experience. They have supplied MORE BRIQUETTE PLANTS than any other firm in this country. KEIGHLEY CORPORATION. ELECTRICITY DEPARTMENT. The Electricity Committee are open to receive prices for the supply of SMALL SLACK of good quality, free from diit, the most sat sfactory size being from t in. to f in. The total contract will be for about 12,000 tons, which will be split up between several collieries, and prices are to be submitted based on a six- monthly or twelve monthly period. It is proposed to try sample trucks of the coal offered. The latest date for receiving offers and prices will be Monday, the 27th September. 1915. Any further particulars may be obtained on written application to the undersigned. Power Station, HARRT WEBBER, A.M.I.B.E., Coney-lane, Keighley, Borough Electrical Engineer September 15th, 1915. and Tramways Manager. • Mr. E. H. Wrigglesworth, Colliery Agent, Hull, has large and small collieries for sale.—Full particulars to Principals or their Solicitors. 1 44 Hardy Pneumatic Sinking Hammer JL X_z DRILLS as new, £11 each; also Steel Borers, Flexible Hose, Ac. -FRANK MUNN, Engineer, Cardiff. MISCELLANEOUS ADVERTISEMENTS : Advertisements are inserted on the last white page or leader page at the following rates :— One insertion ... 10s. 6d. per inch per insertion. Three insertions 9s. 6d. ,, ,, Six insertions ... 9s. Od. ,, ,, A reduction of 25 per cent, is allowed on advertisements of second-hand machinery. Situations Vacant and Wanted : One Penny per word, minimum 2s. 6d. (which must be prepaid). Can be received up to TEN o’clock on Friday morning. (A Classified List appears on page 645.) SUBSCRIPTIONS. The Colliery Guardian, published at 2.30 p.m. on Friday, can be supplied direct from the Publishing Offices, post free for twelve months, at the following rates, payable in advance :— For the United Kingdom.......... £1 1 0 For Foreign Countries and Colonies £17 6 When foreign subscriptions are sent by Money Orders, payable through the Post Office, advice should be sent to the Publishers. Offices for Advertisements and Publication :—30 and 31, Furnival Street, Holborn, London, E.G. Telegraphic Address, “Colliery Guardian, Fleet, London.’’ Telephone—1354 Holborn. *** Cheques, &c., to be made payable to the Colliery Guardian Co. Limited. All remittances should be crossed & co. Postage stamps should not be remitted for amounts exceeding one shilling. Established 1866. Patents, Designs and Trade Marks. Harris and Mills. Chartered Patent Agents, 34 and 35, HIGH HOLBORN. LONDON, W.O. Telegraphic Address—” Privilege, London.” Tel. No.—Holborn 2763. Booklet of useful information gratis. Chart of 187 Mechanical Motions with description of each, post free, 6d. ASSOCIATION OF PRIVATE OWNERS OF RAILWAY ROLLING STOCK. Formed in 1891 for the Protection of the Rights and Interests of Private Owners. Applications for particulars and terms of membership may be sent to the SECRETARY, Clarence Chambers, Gloucester. For COLLIERIES Rails I v V and WORKS. Roof Bars THOS W. WARD Ltd., Pit PrOBS I Albion Works, I SHEFFIELD. Arches J try us. — COAL OUTPUT. One of the best and most practical means in the Kingdom which will increase it, with less labour, less time, less accidents, and less cost. Please read about Moxon’s Patent on last white page. “THE ISSA FOUNDRY COMPANY LT07 RAILWAY PLANT & GENERAL ENGINEERS, Switches, Crossings, Turntables, Water Cranes, Girders, Bridges, Roofs, Pipes. Pumps, Wagons, Tanks, Engines, Boilers, Cranes, Works: NEWPORT, MON. Londok Office : 16 & W Devonshire Sq. Bishopsqate St., E.C. A/Tining Engineer.—Assistant Alining 1VJL ENGINEER wanted for Greece; holder of diploma of approved school of mines or of Home Office certificate under Coal Mines Act, with some years’ practical experience in mining and survey work.—Apply by letter, stating age and full particulars of experience, certificates, and salary expected, ANGLO-GREEK MAGNESITE OO. LTD., 24, Finsbury- square, London. E.C. Partnerships or directorships required by the following investors, viz.: U .pitai available. Experience. Business Required. £5,000 Merchants ... Directorship in sound Manufg. Co. £5,000 Motors Engineering or Manufacturing. <£5,000 Brewery Coal. £3,000 Chemicals ... Chemicals or Allied. £3,000 Textile ... Manchester Heavy Goods preferred. £3,000 Commercial... Directorship, Devon preferred. £2,500 Manufacturing Manufg. has export connections. £1,500 Soft Goods ... Coal. £1,000 Ironmongery Wholesale Hardware. £1,000 Accountancy Manufg., Wholesale, or Agency. Owners of established sound businesses requiring capital should call upon or communicate confidentially with Messrs. COOKE & BYRNE, 60, Harcourt St., Dublin. For Sale, Electric Motor-driven Hoist, with 2 Winding Drums, 1 ft. 3 in. wide by 1 ft. 9 in. diameter, driven by 100-volt Motor, with automatic control gear, self-contained on bedplate; low price.—WILLIAMS A SONS, South Bermondsey Station, London, S.E. For Sale, Horizontal Duplex Tandem Compound STEAM PUMPS (2), cylinder 10 in. and 16 in. diameter by 12 in. stroke, 8 in. gunmetal plungers, 6 in. suction, 5 in. delivery, 10,000 gallons per hour; low price.—WILLIAMS A SONS, South Bermondsey Station, London, S.E. AXTanted, Second-hand Enclosed High- V V speed Colliery VENTILATING FAN and Compound VERTICAL ENGINE for driving same, capable of delivering about 15?,000 cubic feet of air per minute, with water gauge of 5 in. to 6 in —Full particulars to Box 6170, Colliery Guardian Otfice, 30 A 31, Furnival-st., Holborn, London, E C. XXTanted by a Colliery Company, Second- V V hand Lancashire BOILER, 30 ft. by 8 ft. or 8 ft. 6in., 1601b. working pressure—Apply, Box 6171, Colliery Guardian Office, 30 A 31, Furnival-street, Holborn, London, E.C. For Sale, pair 10 in. Horizontal Hauling ENGINES; pair 16 in. Horizontal Winding Engines; 4 Vertical Cameron Pumps, 7 in. cylinder; one double. 8 in. ditto; one double, 15 in. ditto—Apply for particulars, E. S. HOLDSWORTH A CO., Newcastle- on-Tyne. TO SOUTH WALES COLLIERY OWNERS. For Sale, a considerable quantity of Larch TIMBER at Porlock, Somersetshire, which could be cut into pit props of suitable lengths and delivered at Cardiff or Newport through the early months of next year.—Apply, G. J. BROWN & SON, 11, Little College street, Westminster, S.W., who will give all information. Q elf - contained Steam - driven Surface CONDENSING PLANT for sale, Edwards type Air Pumps, Cylin- drical Condenser 450 square feet, complete with Centrifugal Pump and Oil Separator; has recently been working, displaced by larger plant; can he seen in Midlands.—Box 6173, Colliery Guardian Office, 30 A 31, Furnival- street, Holborn, London, E.C. 1X7anted, Second-hand Boiler in good V ▼ condition, 30 ft. by 7 ft. or 7 ft. 6 in., pressure 100-125; hand fired.— Apply, Box 6175, Ciliary Saardian Office, 30 A 31, Furnival-street, Holborn, London, E.C. For Sale, two 5-ton Yorkshire Commercial STEAM WAGONS, one 5 ton end-tipping Trailer, and one 4-ton side-tipping Trailer; built 1914, condition as new ; offers invited.—LLAT MAIN COLLIERIES LTD., Gresford, near Wrexham. For Sale, 4 Hardy Simplex Boring MACHINES (Compressed Air), B6 type, all complete with pipes and drills; large number of Sinking Shovels, old and new ; large number of Sinking Picks, old and new ; large number of Sinking Hammers ; large number of Sinking Jumpers and Hand Drills; 1 Warming Pan ; 1 Exploder for 30 holes, and other tools too numerous to mention.—Lists can be had by applying to Box 6176, Colliery Guardian Office, 30 A 31, Furnival-street. Holborn, London, E.C.