Definitions
from The Century Dictionary.
- noun Felt made of animal hair.
Etymologies
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Examples
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It is but recently that the hair-felt covering on the steam end of a Worthington pumping-engine, within ten miles of us, not only burnt itself but destroyed some thousands of dollars worth of walnut lagging.
The American Architect and Building News, Vol. 27, No. 733, January 11, 1890 Various
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One man, who had been years in the business of selling steam plants, told him that the best thing for him to use was hair-felt, even though the steam-pressure might run up to 125 pounds to the inch.
The American Architect and Building News, Vol. 27, No. 733, January 11, 1890 Various
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The whole device is thoroughly insulated with hair-felt.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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This lead pipe is insulated by hair-felt pipe-covering, C. More recently, we have adopted the procedure of passing a continuous current of water, usually at a very slow rate, through the lead pipe E and always heating the air somewhat by means of the lamp, the exact temperature control being obtained by varying the heating effect of the lamp itself.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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In order to hold the asbestos-lumber panel A with the hair-felt lining B a threaded rod E is screwed into a tapped hole in the outer part of the upright channel H.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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In this manner great rigidity of construction is secured, and we have two air-spaces corresponding to the dead air-spaces indicated in fig. 7, the first between the copper and zinc and the second between the zinc and hair-felt.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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If, on the other hand, it becomes necessary to cool the air-space next to the zinc and in turn cool the zinc, we must resort to the use of cold water, which is allowed to flow through the pipe C suspended in the air-space between the zinc and hair-felt at approximately the same distance as is the heating wire.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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This wire is maintained approximately in the middle of the air-space between the zinc wall and hair-felt by winding it around an ordinary porcelain insulator
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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To further aid in heat insulation we have glued to the inner face of the different panels a patented material composed of two layers of sheathing-paper inclosing a half-inch of hair-felt.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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The principles involved in the construction of the chair calorimeter are here applied, _i.e. _, the use of a structural-steel framework, inner air-tight copper lining, outer zinc wall, hair-felt insulation, and outer asbestos panels.
Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913
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