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Les diagrammes suivants illustrent la mdthode. 1 2 3 1 2 3 4 5 6 BUCHANAN'S PATENT DETENT FOR STOPPING THE PAPER BARREL OF STEAM-ENGINE INDICATORS. SECURED BY LETTERS PATENT, Dated 9th May, 1887, DIRECTIONS FOR WORKING THE DETENT. OIX the Indicator to the engine, then pull out the cord of the paper drum to its full extent, the pawl of the Detent being in gear, then take the cord from the engine and connect it to the cord of the Indicator, adjust the cord with the cord-adjuster until the engine pulls upon the Indicator at each stroke, the paper drum can now be set in motion and stopped by pushing the spring of Detent up or down. Sometimes a litde elastic may be used to keep the cord always in position upon the pulley of the paper drum. N.B.— As the pressure on the end of pawl must be removed before the pawl will fly out of gear, it may be necessary, if the Indicator has been standing, to give the cord a little additional tightening by touching 'it with the finger for an instant. SOLE :aff-A.]SrXTFwA.OTXJHE!RS: M^NM^: 75 ROBERTSON STREET, GLASGOW. I> RICHARD'S STEAM ENGINE INDICATORS WITH PATENT DETENT, fj- For High Pressure Triple-Expansion Engines. THE SPRINGS ARE MADE TO SCALES AS FOLLOWS; j^-incli on the scale represents j^ j I -lb. pressure on the square inch. Indicates from 2. tV 3. tV 4. A 1 1 3If 5- 6. -15 -15 -15 -15 '5 No. to -f- ro ... -1- 22 ... -t- 35 ... + 47 ... -♦- 60 ... + 80 8. 1 T(7 1 *8 1 S?f 1 S4 1 Atmosphere, 9- 10. II. 12. 13- '4- rlo j_ MO 'i- 1 -^1- IP :r ICES. -^ Indicator, with One Spring and Scale, Extra Spring and Scale, „ Extra Paper Cylinder Spring, ... Metallic Paper, Extra Cock, with Cap, Arrangement for Oscillating Engines, Rfducinc. Gear, for reducing the Stroke of the Engine down to that of the Indicator, Extra Siroke, ... -f- 100 + 125 + '5° + '75 -f- 200 -t- 230 + 250 + 320 i 380 each, £8 10 „ 10 016 Per Packet, 4 each, o_ 8 _Q__ „ 10 o M 2 10 016 :m:e]t.a.llio F.A.iPEit j&.x^^Kr.A.~sra our stocic- 4/?^ /? ■10% r Buchanan's Patent Steam Engine Indicators, For High Pressure and Triple-Expansion Engines, WITH PATENT DETENT. (SECURED BY LETTERS PATENT, No. 5713.) / A FEW TESTIMONIALS. Messrs. Hannan & Buchanan, 75 KoHERTsoN Street. Lanefiei.d House, (Ji.asco'.v, 22nd June, li>S7. Dear Sirs, — In reply to yours of 21st June, we beg to state that the gauges you have supphed for H.M.S. "Austraha" and "Galatea" have given us entire satisfaction. We have also fitted your gauges to a large number of merchant steamers, and in every case we have been pleased. Yours truly, Messrs. Hannan «S: Buchanan. Pro R. NAPIER & SONS, Bruce Harman. Donaldson Line ok Steamerf, 165 St. N'lNCENT Street, fJi.AsiJow. Dear Sirs,— In reply to yours regarding your Patent Richard's Indicator, which we have had in use in our S.S. "Alcides" for the last sixteen months, I am pleased to say that it has given every satisfaction. ^ A. BLAIR, Superintending Engineer. Messrs. Hannan iV BtTciiANAN. Perseverance Iron Works, Tenuleton, Near .Manchester. (iENiLKMKN, — We havc one of your Indicators for our Higii Pressure Engine, and are pleased to say it gives every satisfaction. MAVBURY, MARSTON & SHARP. Messrs. Hannan & Buchanan. Harbouk Knimnk Works, I'ORTMAN Street, Kinninc. I'ark, (Jlasoow, Vth Aii^'iist, 1SS7. Dear Sirs, — We are so pleased with the efficiency of your new patent Indicator that we will be obliged if you will, at your earliest convenience, send us another for i6o-lbs. working pressure, with two extra springs, iV and jV- We are. Yours truly, ^fessrs. Hannan & Buchanan. MUIR & HOUSTON. "State" Steamsihi' Works, Plantation Quay, Kast tiovAN. Dear Sirs,— The Engine Indicators, to which you fitted your patent steam piston, has given every satisfaction since, and has been regulaily used for 150-lb. steam, and can recommend it with confidence. Yours faithfully. GEORGE M'FARLANE, Superfntending Engineer. Messrs. Hannan iS: Buchanan. Naval Architects, Consultinc Marine Engineers and Surveyors, 30 Great St. Helens, London, E.G. Dear Sirs,— We have used your Patent Indicators for High Pressure and with Triple-Expansion Engines for the last two years, and have been entirely satisfied in all respects with the Indicators. We find we get good and accurate diagrams with them, which have enabled us promptly to detect faults not shown in the diagrams taken by other Indicators. We are, Dear Sirs, Faithfully yours, LINDSAY & CO. Messrs. Hannan & Buchanan. kosAMAND Woollen Gov., AlMONT, Ga ADA. Gentlemen,— In reply to your enquiry, your instrument is a good serviceable adjunct to the Engine-Room. From our main engine, making 65 revolutions per minute, we get a splendid card. I have the pleasure to remain. Gentlemen, Yours truly, JOHN R. BARRI, Pro RosAMAND Woollen Co. Messrs. Hannan & Buchanan. But/. I'aI'Mehl, Engineers and Shipruilders, St. Petersburch. Gi;nti,i:mf,n,— We are quite satisfied with the Indicator delivered by you: it has proved correct. We find your price also moderate. Wishing you success. I remain. Gentlemen, Yours truly, THOMAS EA1,ES, Engineer of ttnti and Papmehl. CARE AND USE OF THE INDICATOR ■ > I ■! a M I I p tak.ng the mstrument apart f„r dc-aning, the pieces should l,e laid down in full view un a sheet of paper tLT 1.' 'T T "' '"■"'• '""' ^"""''^^ '''' •"■^^"""^'"' '-^ thoroughly dried, wiped clean and I r gh nd shoud iJl ":f r "'■■''"'' ''^' '"""■ "^^'^'^ '■' ""• ''^ -' -d the' better wor'k it will do. ' h 'rks n Id Iv h' \ \ '"\ '■' '■" ''^' ^""^ ^'^"^^■'-■' "" ^'^^- '^"'-' '-^^"-'"^ "->■ ^- easily pi<-k d Id .nd cd b) t e paper-l,arrel and mner-drum. When its cylinder is too hot to touch, sponge is better than waste nsancc but small fibres are apt to get m the pivots and interfere with their lubrication and free action Oil t'r so. ZJ T ir 'T '^"'""' '' ^'"'^' ^" ""''' '" ^"' ^'"'""-''^ "»' 'f ^he Indicator has been laid a fo, some tu k-. n takmg diagrams from new engines, care should be taken that all the core sand and on fdmgs are deared out from the ports and cylinders, otherwise it will be impossible to take a diagram m f^ t th"'^'"; '^ '" '"■ ^^'""'^'^ "' ^"'''^'^^"^- ^'"^ '"'-"^'^ -^^'"^ -'^h this grit will do mo damage to the mstrunient tlian years of working with dean cylinders. SOLE MANUFACTURERS HANNAN & BUCHANAN, 75 ROBERTSON STREET, GLASGOW. Buchanan's Patent Steam Engine Indicator for High Pressure or Triple-Expansion Engines, BUCHANAN'S PATENT STEAM ENGINE INDICATOR, Buchanan's Patent Gauge for High Pressure Steam. For Quick-Speed Engines, such as Torpedo Boats, Steam Uunches, Steam Yachts, Locomotives, dc. RICHARD'S IMPROVED PATENT INDICATOR. BOURDON'S PATENT PRESSURE, VACUUM, AND COMPOUND GAUGES. ENGINE COUNTERS, ENGINE TELEGRAPHS. Reducing Gear for Indicating Engines, Salinometers, Thermometers, English Lever Marine Clocks, Organ Steam Whistles, Harding's Patent Engine Counters, &c. MTyLAI.X.ICJ I'AI^ICK AT.WAYS OlST STOC^K. REPAIRS PROMPTLY EXECUTED.