Some cool graphite machining images:
Image from page 13 of “Scientific American Volume 71 Number 14 (October 1894)” (1894)
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Identifier: scientific-american-1894-10-06
Title: Scientific American Volume 71 Number 14 (October 1894)
Year: 1894 (1890s)
Authors:
Subjects: scientific munn american tion machine stars cents apparatus scientific american iron storage battery hot water purchasing power years ago fort wayne torpedo boat cast iron cotton seed good roads
Publisher:
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iladelphia TO BUSINESS MEN The value of the Scientific American as an adver-tising medium cannot be overestimated. Its circulationis many times greater than that of any similar journalnow published. It goes into all the States and Territo-ries, and is read in all the principal libraries and readingrooms of the world. A business man wants somethingmore than to see his advertisement In a printed news-paper. He wants circulation. This he has when he ad-vertises in the Scientific American. And do not letthe advertising agent Infiuence you to substitute someother paper for Ibe Scientific American when se-lecting a list of publications in which you decide it is foryour interest to advertise. This is frequently done forthe reason that the a^cnt gets a larger commission fromthe papers having a small circulation than is allowed onthe Scientific AM£RiCA:ef. For rates see top of first column of this page or ad-dress MUNN & CO., Publishers, 361 Broadway, Mew^ York. AH. P. GAS ENGINE CASTINGS
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2^ Send stamp forIllustrated Booklet. 1 A.F.WEED&CO. 106 & 10$ Liberty St.New York. Castings and Partsfor Small Engines,Boilers, Dynamos. THE LINK-BELT COMPANIES, I PHILADELPHIA. HEW YORK. CHICAGO. Originators of the best practice in the use of Link-Belting of standard designs.Ewart Link-Belting (31 regular sizes).^^procket Wheels, Hope Transmissions, Fibre – Graphite Self-Lubrl- cant Journal Bearings.machinery for elevating and conveying any material.Philadelphia address, ^0^0 Hunting Park At.
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Image from page 75 of “Science of successful threshing” (1911)
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Identifier: scienceofsuccess01macg
Title: Science of successful threshing
Year: 1911 (1910s)
Authors: MacGregor, Wallace F., 1874- Dingee, W. W., joint author
Subjects: Threshing
Publisher: Racine, Wis., J.I. Case threshing machine co., incorporated
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ure holds itagainst the seat v^hen closed. Arrows are placed on thebody casting and on the valve itself, indicating the direc-tion of the flow of steam to aid in putting in the valvecorrectly. Leakage may be the result of a sprung valve-body or valve, or both, occasioned by freezing or othercauses. The valve itself may have become twisted bysomeone trying to open the throttle when it was stuck byfrost. Leaks can usually be remedied by taking out the valve and filing it on the high placesshown by the contact. Use a veryfine file and bear lightly, or use emerycloth. File off but little before try-ing the valve for leakage. A secondfiling will usually be found to suffice.The Governor. The speed of thesteam threshing-engine is controlledby a governor, which *throttles orlimits the amount of steam admittedto the cylinder. The essential partsof a throttling governor consist ofballs which tend to fly apart by centrifugal action, whichmovement is transmitted to the valve and partly closes it.
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FIG. 20. GOVERNOR. THE ENGINE PROPER 73 The outward movement of the balls is resisted by springs.A perspective view of a governor is shown in Fig. 20, anda sectional view of the valve-body in Fig. 21. The valveconnection to the stem has no play endwise, but is flexible,thus allowing the valve to align itself by its seat. Speed of Bngine. To increase the speed of the engine,loosen the check nut at the top of the Waters governor andturn the screw up. To decrease the speed, screw it down.Be sure to set the check nut tight after altering. Packing the Governor. For packing the stuffing-box,candle wicking (which comes in balls) is excellent; soakedin a mixture of cylinder oil and black lead or graphite, itwill work well and last a long time. Do not screw thestuffing-box down too hard on the packing, or the sensi-tive action of the governor will be interfered with. It is wellto allow a slight leakage to insure its not being too tight. Oiling the Governor. Oil the governor thoroughlywith good
Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.