Modern Steam Practice, Engineering and Electricity; A Guide to Approved Methods of Construction and the Principles Relating Thereto, with Examples, Practical Rules, and Formulae Volume 1

Modern Steam Practice, Engineering and Electricity; A Guide to Approved Methods of Construction and the Principles Relating Thereto, with Examples, Practical Rules, and Formulae Volume 1

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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. 1883 edition. Excerpt: ...and the strain is imparted to this spring instead of to the delicate one in the instrument. Of course it is necessary to have a smaller pulley on the same spindle, so as to reduce the stroke for the diagram. Any part of the meclianism of the engine can, if corresponding with the motion of the piston, be used as the point of attachment for the cord, and simple levers for reducing the stroke, with direct means of guiding the cord to the pulley on the roller of the indicator, is Fig. 85.--Lever for actuating the Roller of Indicator. far preferable to intermediate pulleys for taking the motion of the reciprocating part to which the cord is fixed. The cord is attached to the instrument with a hook and running eye; thus the exact length of the cord is easily adjusted. The indicator should, if convenient, be fitted to each end of the cylinder, and a diagram taken off for both ends, without having a small pipe in communication with both ends of the cylinder; but when a pipe is fitted it must be of sufficient size, not less than inch in diameter, so that the pressure may be the same for both ends. If the pipe is made too small, the friction of the steam on the internal circumference materially tends to reduce the pressure on the small piston of the indicator. For vertical engines the plug-tap, for admitting the lubricant into the cylinder for the lubrication of the piston, is provided with a screwed part for taking the indicator, while another plug-tap is fitted to the bottom of the cylinder. These taps are screwed into the covers or ends of the cylinder. For horizontal engines they can be placed on and screwed into the metal surrounding the steam ports; but it is best when they are fitted into the cylinder itself, or at each end on the covers, or...show more

Product details

  • Paperback | 94 pages
  • 189 x 246 x 5mm | 181g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236519345
  • 9781236519344