Identifier: sciencerecordcom1874beac (find matches)
Title: The Science record; a compendium of scientific progress and discovery
Year: 1872 (1870s)
Authors: Beach, Alfred Ely, 1826-1896
Subjects: Technology Industrial arts
Publisher: New York, Munn
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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METALINE—METHODS OF USE. the metaline forced in under strong pressure, in the posi-tions depicted in Fig. 6. Lastly, Fig. 7 represents a stepfor a mill-spindle or any upright swiftly rotating shaft,notably of the kind used in supporting the cutter headsin wood-working machinery. Here a conical cup of brassis fitted with plugs as shown, and secured in a suitablecavity in the heavier portion. The mode of applicationmust necessarily vary greatly with the construction of the MECHANICS AND ENGINEERING. 335 machine, and other attending circumstances ; and we mayadd that many varieties are made, to adapt the materialto different speeds, pressures, weights, etc. At the workshops of the American Metaline Company,No. 61 Warren street, New-York, various kinds of experi-mental machines may be seen in motion, and, amongothers, there is a mill-spindle, rotated at the rate of 8000
Text Appearing After Image:
METALINE—METHODS OF USE. revolutions per minute. The shaft is of steel and thebearing is of similar metal, fitted as closely as can be done.Metaline is introduced in slots in the shaft. We examinedthe apparatus carefully, and could detect no heating.Four sewing-machines are also continuously running atfull speed, the needle-bars of some at the rate of 1200revolutions per minute. No oil or other lubricant but 33^ SCIENCE RECORD. metaline is in use, and there is clearly no cutting or heat-ing. A five-horse-power Baxter engine we also foundrunning, at the rate of about 150 revolutions, and wewere informed that it had been daily in use for over sixmonths without the application of oil to any of its parts.Our attention was also called to the countershafting inthe machine-shop, the journals of which had been cutdown to a length equal to one diameter of the shaft, asshown in our engravings, Figs. 2 and 3 ; and such indeedwas the case with all the journals to which the metalinehad been appl

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