24 THE COLLIERY GUARDIAN July 5, 1918. CONTENTS. Editorial Articles :— Page The Coal Trade After the War ............. 25 Blackdamp in Mines......................... 25 Articles :— The Safe Operation of Power-Plant Switchboards 17 The Carbonisation and Distillation of Peat. 18 Extracting Coal Pillars from Fiery Seams ... 18 Honorary Degree for Mr. G. Blake Walker.... 19 Burning Anthracite Slush ................... 20 The Rushton Stone-dusting Machine .......... 20 New Maximum Prices for French Coals ........ 20 Viscount Rhondda........................... 21 New Coal and Lighting Order............... 21 The American Coal Trade .................... 29 South Wales Mining Timber Trade ............ 29 National Health Insurance.................. 29 Coal Mining Developments in Spain........... 30 Some Recent Decisions under the Workmen’s Compensation Act ........................, 30 Mean Magnetic Declination................... 32 Labour and Wages ........................... 32 Obituary ................................ 34 Open Contracts ............................. 34 The Freight Market ......................... 34 Government Publications..................... 34 Publications Received ..................... 34 Abstracts of Patent Specifications Recently Acptd. 36 New Patents Connected with the Coal and Iron Trades ................................... 36 Letters to the Editors :— Magnetic Declination....................... 29 Water-gauge Readings and the Newtonian Law... 29 The Coal and Iron Trades ......................26—28 The London Coal Trade ...................... 28 The Tin-plate Trade......................... 28 The By-Products Trade ...................... 29 Law Intelligence .............................. 23 Parliamentary Intelligence....................... 30 Notes from the Coal Fields....................... 31 Coal, Iron and Engineering Companies............. 34 Miscellanea : — Extraction of Ammonia, Toluol, and Benzol .. 18 Prohibited Exports to Switzerland .......... 19 Electricity from Lignite—Scholarships at the Wigan Mining College — French Miners’ Pensions ............................... 20 Middlesbrough Iron Shipments................ 28 Miners’ Wages Advance ...................... 32 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION— 30 & 31, Furnival Street, Holborn, London, E.C. 4. 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 3s. 9d. 7 per insertion for each ” 13 ” 5s. 3d. ) meh in depth. Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. 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 :— United Kingdom ........ 28/6 (26/- in advance). Canada ............. 30/6 (27/6 do. ). Foreign and Colonial ... 33/- (30/- do. ). 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.C. 4. Telegrams—“ Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. Established 1866. PATENTS, DESIGNS, and TRADE MARKS. TT ARRIS AND MILLS, -LJ~ Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. 1. Telegraphic Address—” Privilege, London.” Tel. No.—Holborn 2 €3. pATENTS. Advice Free. _JL_ New Inventions, Designs, Trade Marks, carefully and promptly protected at low INCLUSIVE FEES. THE CONSULTING PATENT AGENCY (1880), _________________253, Gray’s Inn Road, London, W.C- 1. WE ARE SUPPLYING ALL REPORT BOOKS & FORMS Under the Coal Mines Act, 1911. THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival-st., Holborn, London, E.C. 4. VENTILATING FANS AND ENGINES. Advertisement appearing on front Cover of alternate weeks. THE WADDLE PATENT FAN AND ENGINEERING GO. LTD., Llanmore Works, Llanelly, WORK GUARANTEED VIVIANS BORING COMPANY BORING for MINERALS, &c. Solid Specimens of the Strata obtained. Established 1888. Work guaranteed. J. S. DAVIDSON & SON, St. Bees, CUMBERLAND. “CROWN” BOILER COVERINGS of Outstanding Superiority. 967,, SAYING Intensest Heat cannot Impair. SUTCLIFFE BROS. KS"’ See Illustrated Advt. PEEBLES Electrical Machinery in next week’s issue. h BRUCE PEEBLES & Co. Ltd. Engineers. EDINBURGH. ARMYTAGE & JONES Ltd., SHEAF STREET, SHEFFIELD. RAILS. WAGONS. CRANES. (For all purposes). (Coal & Ballast). (Loco & Derrick). Boiler Tanks. Points and Crossings. Sleepers. Buffer Stops. Buyers of all kinds Steel and Iron Scrap. WMGG s BIGGIN L"’ ;! Constructional Engineers, <; 50,^ Effingham Road, Sheffield, MANUFACTURERS OF ![ English Steel Joists, Rivetted ]! Girders, Flitch Plates, Angles, ![ Tees, Channels, Constructional | i’t ini—. t-.v - i~iffrwiwiimfimiTwiin aumn n _i mi ]■ Steelwork, Ac., ■! SOLICIT YOUR ENQUIRIES. J i We hold a LARGE STOCK of all Sections for prompt delivery. I! Telegrams— Telephone— i [ “ Girders, Sheffield.” 3873 Central. SAFETY v. SACRIFICE. Injury to cages and men in pit shafts mostly occurs when such are preventable by the use of HANLEY’S PATENT Cage Arresters; Shaftmen’s Belt Rigs; Rope and Guide Cappies; Detach-Hooks or Separation Guide Cappies. Such injuries and financial losses are unnecessary sacrifices of Life, Profits, and Wages. They are profitable to Shaft liefitters, Undertakers, Doctors, Lawyers and Inquesters, but they cause unnecessary sacrifice of time and expense to Safety First tool suppliers; Mines Inspectors; and also waste the country’s Taxation. 1^^° Don’t hesitate to use the Hanley Appliances. Fact Lists Free. Goods on approval. Pay when you find them All Bight. A. HANLEY, Thirlmere, Sheffield. GUARANTEED MATERIALS. INSULATING VARNISHES. WAGON PAINTS. W. W. Hill, Son & Wallace Ltd., Elton Street, Broughton Bridge, MANCHESTER. --- ESTABLISHED 1840. - Geo. N. Dixon & Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. BOILERS For COLLIERIES .imis A SPEC!ALITE. ■— ARNOLD’S Bulbous Boiler Flue. Hopkinson-West Patent Boiler Flue. WM. ARNOLD & CO., Barnsley. YYdanted, Draughtsman, for Colliery ▼ T Plant. No person already engaged on Government work need apply-—Apply nearest EMPLOYMENT EXCHANGE, quoting number A 5521. TXT’anted, for duration of war, competent W COLLIERY SURVEYOR. Must be over militajy age, or ineligible for Army.—Apply, stating age, wages required, together with copies of three recent references, to THE BLACK PARK COLLIERY CO. LTD., Chirk, Denbighshire. TXTanted, by large firm of Constructional V f Engineers, DRAUGHTSMAN, fully experienced in the design of modem coal washing plant, to take entire charge of department.—Box 7035, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. “Drattice Cloth. — Gentleman Wanted A J with influence amongst colliery managers and proprietors, to sell BRATTICE CLOTH on good commission only.—Address, FAIRCLOTTGH & SONS, Bank-lane, Clayton, near Manchester. "TXT’anted, Assistant Colliery Electrician, V V capable of taking charge of 500-kw. turbo alternator plant in the absence of chief electrician, and to assist generally.—State age, exempt from military service, qualifications, salary required, and when at liberty, to Box 7090, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. /Certificated Colliery Manager, 29, desires appointment as MANAGER or ASSISTANT MANAGER. Excel- lent references and testimonials; efficient and energetic.—Apply, Box 7092, Colliery Guardian Office, 30 & 31 Furnival-street, Holborn, London, E.C. 4. "TXT'anted, a well-designed good Second- V Y hand sectionally-built BUNGALOW, of about 6/8 rooms, to re-erect in South Wales. PERRYS & PARTNERS, 4, Wind-street, Swansea. TYT'ithin 20 miles of Sheffield, Small y V COLLIERY for SALE; most exceptional opportunity; 3 to 4 million tons reserves ; working best seams. Price under £25,OOO.—Apply, Box 7098, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Tndian Mines Act, 1901, with a Digest of B the Act, a reprint of the Act with explanatory notes, an appendix con- taining forms, a model code of Special Rules, &c., by W. H. Pickering, Chief Inspector of Mines in India, and W. Graham, Barrister-at-Law.— Price 10s. 4d. post free from Colliery Guardian Office, 30&31, Furnival-street, Holborn, London, E.C. 4. rpenders are invited for the Driving of 1 two SLANTS in the No. 2 Rhondda Seam, at Tynywaun Colliery, near Bridgend. Particulars of Contract may be obtained on application to the MANAGER, Tynywaun Colliery. Tenders to be addressed to— THE SWANSEA VALE SPELTER CO. LTD., Llansamlet, near Swansea. TUESDAY, 23rd JULY, at 2.30 p.m. Highly Important Sale of VALUABLE STANDING TIMBER, comprising about 13,000 OAK, ASH, BEECH, LARCH, BIRCH AND OTHER TREES AND POLES, now standing on the OAKLEY and INGE ESTATES (in the Parishes of Maentwrog, Llandecwyn and Festiniog), in the following woods, viz. Felinrhyd Fawr, Ysgubor Hen and Dingle, Ty’ny Bryn and Llechycwn, on the Maentwrog side; and on Bronturnor Farm, on the Tanybwlch side of the valley; all within 1% miles to 3£ miles of the Maentwrog-road Station (G.W. Railway), and 4 miles of Talsarnau and Penrhyndendraeth Stations (Cambrian Railway). T?rank Lloyd & Sons will offer for Sale I by AUCTION the above standing TIMBER in 5 Lots at the Queen’s Hotel, Blaenau Festiniog, on TUESDAY, 23rd July, 1918, at 2.30 prompt. Mr. R. W. VAUGHAN, Estate Office, Tan-y-bwlch, S.O. Merioneth, will show the various Lots by appointment. Catalogues from the AUCTIONEERS, Wrexham; Messrs. THOS. JONES & SON, Land Agents and Surveyors, 5, Little George-street, Westminster, London, S. W. 1; and at the place of Sale. /Collieries requiring 3 ft. 3 in., 3 ft. 6 in., or 4 ft. 6 in. COGWOOD, stock ready for delivery in various counties, England and Wales. Also some longer pitwood. Also 3J ft. and 4J ft. timber, large enough to cut sleepers; Oak and other kinds. Apply to— C. JENNINGS & CO. LTD., Pennywell-road, Bristol. TT'or Sale, Pit Props, diameters at top A ’ 1J in. to 7% in.—Particulars on application to BLACKMAN, 43, King’s-road, St. Leonards-on-Sea. "Epor Sale, a quantity of Underground J- BRIDGE and F.B. RAILS, 4 to 12 ft. lengths; also STEEL TUBS’ 2 ft. 6 in. gauge, and 4-ton CHAULDRON WAGONS. Apply— J. W. ELLIS & CO. LTD., 40, Dean-street, Newcastle-on-Tyne. T?or Sale, two excellent 5-Flued Galloway > BOILERS, 30 ft. by 8 ft., plate | in. thick, insurance accepted for 140 lb. pressure. Prompt delivery. FIRTH BLAKELEY LTD., Church Fenton, Leeds. T?or Sale, 10 Marine Type Dry Back I BOILERS, 13 ft. long by 11 ft. dia., 180 lb. pressure, 2,000 sq. ft. heating surface, with fittings. Immediate delivery.—Box 1660, c/o DAWSON’S, 121, Cannon-street, E.C. 4. T?or Sale, Motor Generator, by G.E.C., 1 1 shunt wound motor, 500 volts, 225 amps., coupled to 2 series-wound boosters, 110 volts, 6-pole machines, 650 r.p.m. WILLIAMS & SONS, South Bermondsey Station, London, S.E. 16. TT'or Sale, Cast Iron Tank, about 25 ft. by A * 17 ft. by 4 ft. 6 in. deep, round comers, plates flanged and bolted inside; about 12,000 gallons. Now erected in London. Immediate delivery. WILLIAMS & SONS, South Bermondsey Station, London, S.E. 16. T?or Sale, 600-i.h.p. Horizontal Tandem T Triple Expansion Condensing STEAM ENGINE, by Pollit & Wigzell, cyls. 12£ in., 22 in. and 35 in. dia. by 54 in. stroke, pulley 18 ft. dia. for 30 ropes, 86 r.p.m., 150 lb. steam pressure. Now fixed. WILLIAMS & SONS, South Bermondsey Station, London, S.E. 16. ror Sale, Second-hand. Machinery, con- sisting of Engines (gas and steam), Boilers. Electrical Plant, Machine Tools, Pumps, Hydraulic Plant, Cranes, Steam and Electric Winches, Mortar Mills, Roots’ Blowers, Tanks, Air Receivers, and a large assortment of other useful Plant. Enquiries solicited. WII>I*IAMS & SONS, South Bermondsey Station, London, S.E. 16.