Radford's Cyclopedia of Construction; Carpentry, Building and Architecture, Based on the Practical Experience of a Large Staff of Experts in Actual Construction Work Volume 9

Radford's Cyclopedia of Construction; Carpentry, Building and Architecture, Based on the Practical Experience of a Large Staff of Experts in Actual Construction Work Volume 9

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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. 1909 edition. Excerpt: ...of this action, cannot be considered strictly a temperature-regulating device. Fig. 113. "Ideal Sylphon" Temperature Regulator. For use on systems in residences and on ordinary heating work, the temperature-regulating devices adaptable can be divided into two classes--(a) those that are controlled by the temperature of the water within a hot-water heating system; (b) those controlled by the temperature of the atmosphere within the building. There are several styles and types of each, but we can describe here only one or two of the representative regulators in each division. Of those in Class (a), above, the "Ideal Sylphon" shown in Fig. 113 is a good illustration. It will operate at any desired temperature ranging from 120 to 180 F., and may be adjusted by simply moving a weight on the lever rod. In its construction the cast-iron pot A is divided horizontally by the partition B. The lower compartment contains the bulb C, which holds a volatile liquid vaporizing at a low temperature and filling the space E. This bulb is made of a metal having a high conductivity for heat, which allows slight variations of temperature to penetrate quickly to the volatile liquid. The water from the heating system flows through the space between A and C, completely surrounding the bulb C. The upper compartment contains a metal bellows F, which is hermetically sealed and which communicates with bulb C through pipe G. The construction of the rocker and lever are shown by H, I, J, and K. As the temperature rises, the vapor in space E increases in pressure, forcing a portion of the liquid up pipe G into the bellows, as indicated by arrows. This action causes the bellows to expand, raising the plunger M, which, in turn, tilts the rocker and...show more

Product details

  • Paperback | 58 pages
  • 189 x 246 x 3mm | 122g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236949358
  • 9781236949356