306 THE COLLIERY GUARDIAN. February 6, 1914. CONTENTS. PAGE Editorial Articles :— Miners and the Minimum Wage ................ 307 Safety Proposals in Mines .................. 307 Articles :— Power Production in the United Kingdom...... 295 Reversing the Ventilation .................. 299 The Development of the G-as Engine in England and its Adaption to the Generation of Power at Collieries and Ironworks.........,......... 300 Mining and Other Notes ..................... 305 Labour and Wages........................ 308 The Senghenydd Disaster .................... 311 The Minimum Wage Act........................ 311 The Inspection of Mines ................... 311 Obituary.................................. 314 Spontaneous Combustion in Coalmines......... 315 The Freight Market ......................... 317 Open Contracts.............................. 317 Abstracts of Patent Specifications Recently Accep bed 320 New Patents Connected with the Coal and Iron Trades .................................... 322 Government Publications .................... 322 Publications Received ...................... 322 Catalogues and Price Lists Received......... 322 Continental Mining Notes ....................... 305 Notes from the Coalfields .................,.... 312 Coal, Iron and Engineering Companies .......... 318 The Coal and Iron Trades............ 303—305, 309, 310 The Tin-plate Trade ........................ 305 The By-Products Trade ...................... 309 The London Coal Trade ...................... 310 Reports of Meetings :— South Wales Institute of Engineers ......... 297 North Staffordshire Institute of Mining and Mechanical Engineers ...................... 313 Midland Institute of Mining, Civil and Mechanical Engineers ................................. 315 Letters to the Editor: — Flame v. Electric Safety Lamps—Mining Engineers and the Surveyors'’ Institution............ 308 Miscellanea :— Hull Coal Exports .......................... 308 Grimsby Coal Exports ....................... 318 HAU 17TJOT 17 Q for minerals, WATER AND BRINE. Boreholes for Prospecting in Underground Workings a Speciality. VIVIAN’S BORING COMPANY, PARKSIDE, CLEATOR MOOR. OVER 82 MILES OF BORINGS COMPLETED. Established 40 years, Largest experience. Telegrams—“Vivians, Parkside, Cleator Moor.” GEO. iL OMOi & O®^ 43, CASTLE STREET, LIVERPOOL Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. The Cambrian School of Mines, CEMETERY ROAD, FORTH, GLAM. An Un i vers sty Training at Your Own Home. Lessons and Instruction by Post for candidates for FIRST and SECOND Class Mine Managers’ and Mine Surveyors’ Home Office Examinations; Surveying and Electrical Engineering for London City Guild’s Examina- tions ; also A.M.E.E. Examinations and Government Inspectors’ Exams. Candidates for the above write without delay for free Syllabus, and book of Previous Examination Questions. (Dept. G.) CAMBRIAN MINING SCHOOL, FORTH, Glam. BORING for MINERALS, &c. Solid Specimens of the Strata obtained. Established 1888. Reference if required. Work guaranteed. Apply to --- J. S. DAVIDSON & SON, St. Bees, CUMBERLAND. YEADONS’ LATEST PATENTED BRIQUETTE MACHINERY, For Coal, Coke, Iron and other Ores. YEADON, SON & CO., o » e EngiMeei’S, XliJEElOIESe. World-wide Reputation. 35 Years’ Experience. AND ACCESSORIES. v WAGONS ALWAYS IN STOCK. QUICK DESPATCH. THO® W. WARD Ltd., Sheffield. | Telegrams—“Forward.” Telephones—4321 (6 lines). J A Mining Engineer and Colliery Manager of nearly 30 years’ practical experience in all classes of underground work, coal washeries, retort coke ovens and bye-product recovery plants, is desirous of meeting with an appointment as AGENT, GENERAL MANAGER or DIRECTOR to a well established firm; would be willing to invest capital where services could be rendered in any of the above capacities ; would also entertain purchase of a share in established mining engineer’s and consultant’s practice ; Yorkshire preferred ; highest refer- ences required and given. . Apply, Messrs. I. & J. W. SIMCOX, Solicitors, 14, Waterloo-strret, Birmingham. Advertiser requires position as Manager or TRAVELLER ; practical experience in steam and house trade ; first-class references.—“ B.A.O.T.,” Box 5523, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. Wanted by Mining Engineer, position as GENERAL MANAGER or MANAGER with extensive knowledge in both coal and metal mining; unique disciplinarian, excellent references.—Apply, Box 5536, Colliery Guardian Office, 30 & 31, Furnival- street, Holborn, London, E.C. "IVTineral Surveyor required to act as 1 V 8 ASSISTANT to a mining engineer; one with experience in estate work and royalties preferred: permanent position: state age, experience, and salary.—Write, "CARBON,” care of J. W. Vickers & Co. Ltd., 5, Nicholas-lane, E.C. Wanted, Situation as experienced COLLIERY WINDER; used to quick speeds; excellent refer- ences.—Address, Box 5522, Colliery Guardian Office, 30 & 31, Furnival- street, Holborn, London, E.C. Assistant Colliery Manager, First-class certificate endorsed for surveying, desires change as CHIEF SURVEYOR at colliery, mining engineer’s or estate office ; 18 years’ experi- ence, 5 in mining engineer’s office.—Box 5541, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. Wanted, First-class Certificated Colliery MANAGER for India, salary Rs. 600 per. month ; state age, experience, also references.—Apply, Box 5544, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. ’ITTanted by a Colliery Company in V V Lancashire, a certificated SENIOR ASSISTANT MINING SURVEYOR; must be well up in levelling and surface work generally, also a good draughtsman; commencing salary £2 per week.—Application to be made to chief surveyor, stating age, and enclosing testimonials, Box 5545, (joVie— ■" ■ Officp, 30 & 31. Furnival-street, Holborn, London, E.C. ADVERTISEMENTS. Off BOSS for AOWOTISEMWS and RmUOTOr- 30 31, Fomivai Street, Holl born, LondonD EX. Telegraphic Address—“Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. p H B t is conducted by ilio UMOo A. SOUTHERN H. W. HALBAUM (Estab. 1883). (late H.M.I.M.) (Greenwell Medallist) men qualified to prepare you for the highest mining positions. The U.M.S is the sure road to promotion. Employers know that OUS PRACTICAL TRAINING FITS MEN FOB POSITION. That is why U.M.S. men obtain and hold nearly all the best positions. 48 of H.M. Inspectors are U.M.S. men. LESSONS BY POST only. Syllabus free. Dept. A3, The U.M.S., CARDIFF. Wanted, position as Colliery Engineer, age 32, married. 4 years in present berth as Assistant Engineer on large collieries and engineering works in S. Wales ; good experience and references ; disengaged end of February.—Box 5530, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. Wanted, fifty to one hundred good 10-ton COAL WAGONS.—Apply, “ MERCHANT,” Box 5542, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS Single Column (3 inches wide): For 52 insertions 2s. 6d. . A( P9r insertion for each ,, JiO „ OS. UQ. /” • -i . j j. „ 13 „ 3s. 6d. 1 inch in depth. Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. MISCELLANEOUS ADVERTISEMENTS : Advertisements are inserted on the last white page or leader page at the following rates:— One insertion ... 10s. Od. 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 ©"clock on Friday morning. The Gssrot F®««y Go. Ltd., Malleable Ironfounders, MMFEIL®, NEAR SHEFFIELD. Tpor Sale, one Turbine Centrifugal Pump, 5,000 gallons per hour on 100 ft. lift, direct coupled to 6J-h.p. Motor, 460 volts D.C., pipes, &c , complete, never been used.—W. E. DEELEY, 11, Victoria Buildings, Manchester. rPo Sinking Contractors.—Tenders are I required for SINKING SHAFT 16 ft. in diameter, 300 yards deep or thereabouts.—For further particulars, applv the GENERAL MANAGER, Swanwick Collieries, Alfreton, Derbyshire. (A Classified Lisb appears on page 324.) 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 O For Foreign Countries and Colonies dSl 7 6 When foreign subscriptions are sent by Post Office Orders, advice should be sent to the Publishers. Offices for Advertisements and Publication—30 & 31, Fur- nival Street, Holborn, London, E.C. Telegraphic Address—4* Colliery Guardian, Fleet, London.” Telephone—1354? Holborn. Established 1866. Patents, Designs and Trade ^aro. Harris and Mills, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. Telegraphic Address—“ Privilege, London.” Tel. No. Holborn 2763. Circular of useful information and prices for British and Foreign Patents post free. Chart of 187 Mechanical Motions with description of each, post free 6d. VENTILATING FANS AND ENGINES. See Advertisement appearing on front Cover of alternate Weekst THE WAODLE PATENT FAH ANO ENCINEERBNC GO. LTD. Works, Llanelly. Makers of all kinds of DRIVING & ELEVATOR CHAINS, SPROCKET WHEELS, ELEVATOR BUCKETS, &c. STEAK MW. HANK’S WAGON CO., Leeds. See Advertisement next week. THE ISCA FOUNDRY COMPANY LTD., RAILWAY PLANT & GENERAL ENGINEERS, Switches, Crossings, Turntables, Water Cranes, Girders, Bridges, Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes, Works: NEWPORT, MON. London Office: 16&17 Devonshire Bishopsqate St., E.C. BIKE AM @UJTH Linings never fell to cure. Ask for Sample ana Mst— The HERBERT FROOD Co. Ld., Works Address: Sovereign Wills, Chapel-en-le-Frith. London Address: 39/41, UPPER RATHBONE PLACE, W. To Contractors and others. —Tenders are required for the making of a RAILWAY CUTTING.—For further particulars, apply the GENERAL MANAGER, Swan wick Collieries, Alfreton, Derbyshire. Ipor Sale, Air Compressor, 200 cubic feet, -I “ Reliance,” 90 lb. pressure, by Davey Paxman, with guarantee; also 100 cubic feet Self-contained on air receiver.—A. UNDERWOOD, 3, Queen-street, E.C. or Sale, Boiler, Lancs., 28 by 7 ft. 6 in., insured ICO steam, by Arnott, seen working.—A. UNDERWOOD, 3, Queen-street, E C. For Sale, 16 by 28 Tangye Horizontal ENGINE, automatic expansion; also 14 by 30, seen under steam.— A. UNDERWOOD, 3, Queen-street, E.C. For Sale, 25-n.h.p. Robey Undertype ENGINE and BOILER, pair 12^ cylinders by 18 stroke, boiler insured 1001b.—A. UNDERWOOD, 3, Queen-street, E C. Leather, Price 3s. 6d. net. Cloth, Price is. 6