File:Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916) (14796416243).jpg

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Identifier: cyclopediaofloco00swin (find matches)
Title: Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives
Year: 1916 (1910s)
Authors: Swingle, Calvin Franklin, 1846- (from old catalog)
Subjects: Locomotives
Publisher: Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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INJECTORS, STEAM GAUGES, ETC. 395 pound of the maximum pressure required, the valveopens slightly, and the steam escapes through theouter seat into the cylinder and thence into the air;the steam also enters through the inner seat into thewell, and thence through the passages in the arms tothe air. When the pressure in the boiler attains themaximum point, the valve rises higher and steam
Text Appearing After Image:
Figure 185Crosby Spring-Seat Locomotive Check Valve is admitted into the well faster than it can escapethrough the passages in the arms, and its pressurerapidly accumulates under the inner seat; this pressure,thus acting upon an additional area, overcomes theincreasing resistance of the spring, and forces thevalve wide open, thereby quickly relieving the boiler.When the pressure within the boiler is lessened, theflow of steam into the well is also lessened, and the 396 LOCOMOTIVE ENGINEERING pressure therein diminishing, the valve gradually set-tles down; this action continues until the area of the opening into thewell is less than thearea of the aperturesin the arms, and thevalve promptlycloses. The point of open-ing can be readilychanged while under Usteam by screwingthe threaded bolt atthe top of the cyl-inder up for dimin-ishing, or down forincreasing, the pres-sure. The seats of thisvalve are flat, anddo not cut or wearout and leak so read-ily as beveled seats, j,The valve is mad

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Flickr tags
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  • bookid:cyclopediaofloco00swin
  • bookyear:1916
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Swingle__Calvin_Franklin__1846___from_old_catalog_
  • booksubject:Locomotives
  • bookpublisher:Chicago__F__J__Drake___co___pub__for_Sears__Roebuck___co_
  • bookcontributor:The_Library_of_Congress
  • booksponsor:The_Library_of_Congress
  • bookleafnumber:400
  • bookcollection:library_of_congress
  • bookcollection:americana
Flickr posted date
InfoField
29 July 2014


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