The Working Engineer's Practical Guide to the Management of the Steam Engine and Boiler; With Rules and Instructions for Valve Setting
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Home > History and Archaeology > History > The Working Engineer's Practical Guide to the Management of the Steam Engine and Boiler; With Rules and Instructions for Valve Setting
The Working Engineer's Practical Guide to the Management of the Steam Engine and Boiler; With Rules and Instructions for Valve Setting

The Working Engineer's Practical Guide to the Management of the Steam Engine and Boiler; With Rules and Instructions for Valve Setting


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About the Book

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1866 Excerpt: ...at 651bs pressure, the average is as the pressure, or 651bs: by cutting off at one-eighth of the stroke, the average is 251bs. It therefore follows that as we only use one-eighth the quantity of steam to obtain 25, as we use for the one stroke with steam throughout, we obtain additional power by expansion--indeed, upwards of three times the power, or as 200 is to 65. The annexed figure, Diagram No. 17, illustrates the expansion of steam in the cylinder, and gives a mode whereby to ascertain the pressure at any portion of the stroke. In the figure the steam is represented at the commencement as being at 651bs on the piston, cut off at one-eighth the stroke. The figures 1, 2, 3, 4, 5, 6, 7, and 8, are the numbered divisions of the cylinder. To ascertain the pressure when the piston has travelled either one-fourth or one-third, or any other portion of the stroke, the pressure in the first division must be divided by the number of divisions, or portions, whose pressure is required to be known. Thus, if the pressure be required when the piston has travelled half the length of the cylinder, we must divide by 4, the piston having travelled four parts out of the eight into which the cylinder is divided. So also with each division, or number of divisions. Where the expansions are either less or more, the cylinder must be divided accordingly into the same number of parts as there are expansions. For example: steam at 20fts above the atmospheric pressure, cut off at one-third of the stroke, will be, at the end of the stroke, llfBra; thus, 2038 of steam and 153bs atmospheric pressure equals.35Bbs cut off at one-third--is 335= 1T2, or nearly 4Ibs below atmosphere. If a High-pressure Engine, the pressure of the atmosphere must be added in th same way. Example: 80Bs cut o...


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Product Details
  • ISBN-13: 9781232384496
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 52
  • Spine Width: 3 mm
  • Width: 189 mm
  • ISBN-10: 1232384496
  • Publisher Date: 01 May 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 109 gr

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The Working Engineer's Practical Guide to the Management of the Steam Engine and Boiler; With Rules and Instructions for Valve Setting
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