Patent GB-190906094-A (GB)
Title: An Improved Arrangement of Means for Regulating the Conditions of the Atmosphere of Rooms and of Articles therein as regards Temperature and Humidity.
Inventor: HART JOHN ALSTON
IPC: F24F3/14
Filed: 1909-03-13
Granted: 1910-06-13
Abstract: 6094. Hart, J. A. March 13. Fibres, damping; yarns and threads, damping.-A method of regulating the temperature and humidity of the atmosphere of rooms in which cotton and other textile materials are treated consists in causing a portion of the atmosphere to become saturated with water vapour by the local application of a cooling-device, and in applying this portion as an envelope to the textile material to be kept moist, whereby the material is brought to, and maintained in, the desired condition without the total amount of water vapour in the atmosphere of the room being increased. The invention is described as applied to a cotton-cloth weaving-shed, where it is desirable to maintain a degree of relative humidity in and about the " weaving line " corresponding to a difference of about 3‹ F. between the wet and dry bulb thermometer readings. The "weaving line" includes the warp on the beam, the track of the warp, the track of the cloth, and the cloth on the roller. Fig. 1 shows the application of local cooling by a direct method, in which the warp itself is first cooled and humidified and then, by the aid of evaporation, cools and humidifies the surrounding atmosphere, so as to produce the desired condition in the atmospheric envelope of the "weaving line." The back rest b, over which the warp from the beam a passes, is made hollow and a cooling-liquid circulated through it. The water vapour which condenses on the outside of the rest is partly taken up by the warp, and partly re-evaporated into the air below the rest, which air is caused by a deflector h to impinge on the warp on the beam and to rise up therefrom. The deflector also forms with the rest and warp a more or less enclosed space containing a cool and humid atmosphere as well as a certain amount of water, and having the warp as the only absorbent wall. In a modification, the cooling is effected by a tube adjacent to the back rest and adapted to rest on the top of the warp. Pipes or other receptacles for the circulation or retention of a cooling-medium may be placed above or below the "weaving line," and conditioned air guided through or past them on to the warp. Instead of supplying conditioned air to the warp, the local cooling-agents may be adapted to drop condensed vapour upon the warp, either directly or through the medium of muslin depending from the cooling-coils. Fig. 6 shows how conditioned air or moisture from one cooling-coil o may be supplied through a duct r and perforated discharging-trunks s to the " weaving lines " b of a number of looms. The ducts and trunks are preferably insulated from the heating and drying influence of the surrounding atmosphere. This may be effected by the use of a jacket of the kind described in Specification 17,738/03, [Class 64, Heating]. In cases where there is an excess of moisture, above a given dew point, in the atmosphere of the room, this excess may be removed by condensation.