510 [supplement page X. ] THE COLLIERY GUARDIAN. March 8, 1918. YORKSHIRE ENGINE C? LD ontractors to the Admiralty, War Office, India Office, &c., and Colonial and Foreign Governments and Railways. HEAD OFFICE & WORKS : SHEFFIELD, ENGLAND. London Office : 34, Caxton House, Westminster, S.W. 1. BUILDERS OF STEAM, ELECTRIC & COMPRESSED AIR LOCOMOTIVES for any Gauge—of any Weight. COAL CUTTING MACHINES <& HAULAGE ENGINES OF* ALL TYPES. FORGINGS IN IRON & STEEL—G.M. & PHOSPHOR BRONZE CASTINGS. MACHINE WORK OF EVERY DESCRIPTION. Telegraphic Address :—ENGINE, SHEFFIELD. THE THORNTON PATENT MINING DIALS. These Dials are practically indestructible. The working parts are incased and thus rendered free from damage by dust and grit. Send for illustrated booklet. A. G. THORNTON s, Paragon "W orlis, 19, King Street West, MANCHESTER. TYNOS. “ Bitromarc ” Solution A highly efficient Bituminous, Anti- Corrosive Black Enamel Paint for Iron • and Steel Structures, Corrugated Iron, Ships’ Holds, Bunkers, &c. SOLC PROPRIETORS, S. T. TAYLOR & SONS, Tynos Worka, SCOTSWOOD-ON-TYNE. Tri. N..i SS CxrU. Ta. Ad4nu: "Chw Sc«...od," ATJEU’S PATENT STEAM REDUCING VALVES Also Makers of Special FULL BORE Patent Steam Reducing Valves for Blowing, Winding, Pumping and other Engines, and for supplying Surplus or other steam from high to low pressure boilers, &c. 'fir! DAVID AULD & SONS, Patentc.es Makers, LTD. Whitevale Foundry, GLASGOW, ^ood &ni)edtment. PROVENDER Prepared in Half Time with Half Labour. DRAWINGS, SPECIFICATIONS, for Complete Plants from 5 cwt. to 5 tons per hour. PATENT DUST EXTRACTORS. Patent Mixers (for Mixing Food). CRUSHERS and SIFTING MACHINERY Telephone 3241 (2 lines). Telegrams—Elevator, Leeds.” GEORGE PORTEUS, Engineer, LEEDS. niiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii . . . a hot thick fire and therefore speedy evaporation. That’s the secret of boiler firing. But you cannot get the best results from the natural draught — that is, chimney draught. A chimney relies upon hot gases for its drawing power— and that s waste. These hot gases should be utilised in the reduction of your fuel bill. The “Cyclone” Induced Draught Plant gets the maximum from the fuel. It helps you to use cheaper fuel. And it means—all the time—economy with efficiency. Write for our Booklet 275F to-day. It will interest you. Raiihcws 6YatesE workhSwintpnJ*Ianche5teE “ Cyclone ’’ Blower and Exhauster. A few extracts from testimonials—facsimiles “ The savings to be effected by the plant above referred to, will in 12 months time more than pay for the Induced Draught Installation.” “ Your fan has now been running 18 months. We now use only the one Boiler, have reduced the quality of coal 25 Q/o . . . and have ceased to receive notices from the Authorities re ‘ emitting dense smoke.’ ” “ ... we could not possibly work without it . “ . . . we are well satisfied with the results. . “. . . has given every satisfaction. . . .” Hllllllllllllllllllllll Direct Coupled Steam Set supplied to the Monkton Colliery Co. Ltd. of the original letters are shown in our Booklet. “. . . the Induced Draught has given a satis- factory result both in the Reduction of the Coal Bill and the stopping of the Smoke Nuisance. . .” “ . . . the use of the fan enables us to cope with this load without having to put on extra boilers. .” ANNALS OF COALMINING & THE COAL TRADE. Br POST, 25s. M. Ry ROBERT L. GALLOWAY. Price net. 1 ui Uollikky Guardiak Co. Ltd., A) St 31, Eurmval Street, Holtom, London, E.C . 4 DUDLEY, Wore., Factors and Manufacturers of Colliery Requisites. Mechanical & Electrical SIGNAL BELLS. Ordinary and Indicating Signal Bells (Mechanical and Electrical) with Indicator and Non-accumulative Ringing Lever or Key, ELASTIC ENAMELLED PLATES FOR NOTICES IN COLLIERIES & MINES. Abstract of C.M.R. Act, General Regulations, Signals (Winding, Sinking & Haulage), Electricity Notices, Restoration Plates, &c. E. C. THEEDAM LTD. Coal Baskets, Steel Chimneys, Coal Rakes, Elevator Buckets, Mining Kibbles, Haulage Clips, Barrows, Pit Tubs, &c. QUALITY m SWITCH GEAR. LIQUID SWITCH GEAR of HIGH- CLASS MAKE sod GOOD DESIGN. -.•W Aw-.v. A-'';' WRITE for LIST No. 60 with PRICES and OUTPUTS. J. H. HOLMES & CO., Newcastle-on-Tyne.