Ventilation and Heating, Principles and Application; A Treatise

Ventilation and Heating, Principles and Application; A Treatise

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ...for heating purposes. For use in the form of an exhaust fan, as an adjunct to a plenum system able for the ventilation of ments--a specially motor is attached di. the side of an exhaust "Monogram" type ted in Fig. 22. The becomes an integral entire machine, to be any given 'Where ty is re. plate fan is motor after Fig. 23. the case of fans, any matter of charge e d, the ing the Fig. 22. "Monogram " ELtcTRic Exhauster. of heating, the electric fan is, however, frequently of great service. It may be easily installed and operated in an out.of.the.way position as in any other, and can be arranged to be started and stopped from a switchboard in a much more convenient location, so that the attendant will seldom have to visit the fan. Fig. 23. Steel Plate Electric Exhauster. STEAM FAN. It is always desirable that the means of propulsion for a fan should be rendered as independent as possible of any other source of power; in other words, that the motor adopted should be devoted solely to the driving of the fan. Although the electric motor, as already pointed out, is being very generally introduced, the steam engine stands as the almost universal agent for fan propulsion, the combination of fan and engine being designated a steam fan. As constructed of steel plate in the smaller sizes, the shell and wheel are identical with those used for a pulley fan. In place of the pulley and its hanger, however, there is provided a special type of centre.crank upright engine, with its cylinder above the shaft, supported upon a substantial base and carrying the fan wheel overhung upon the end of its shaft, all as illustrated in Fig. 24. In the larger sizes of full housing steam fans, the engine is of an entirely different form, as shown more

Product details

  • Paperback | 46 pages
  • 189 x 246 x 3mm | 100g
  • United States
  • English
  • black & white illustrations
  • 1236789032
  • 9781236789037