US691312A - Ventilating apparatus. - Google Patents

Description

N0. 69l,3l2. Patented Ian. M, I902.

. J. A. HART.

VENTILATING APPARATUS.

(Application filed Sept. 24, 1901.)

2 Sheets-Sheet I.

(No Model.)

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Patented Ian. I4, 1902. J. A. HART. VENTILATING APPARATUS.

2 Sheets-Sheet 2.

(No Model.)

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.IOHN ALSTON HART, OF BLACKBURN, ENGLAND.

VENTILATING APPARATUS.

SPECIFIGATIQN forming part of Letters Patent No. 691,312, dated January 14, 1902.

. Application filed September 24, 1901. Serial No. 76,375. (No model.)

To all whom, it may concern:

Be it known that I, JOHN ALSTON HART, engineer, a subject of the King of Great Britain and Ireland, residing at Commercial Mills, Novas, Blackburn, in the county of Lancaster, England, have invented certain new and useful Improvements in Apparatus for Use in Ventilating with Conditioned or Filtered, Cooled or Warmed, and Moistened Air; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to provide means by which ventilation with air which is conditioned by being filtered and cooled or warmed and moistened, as required, before being admitted to the room or place to be supplied with such 'air can be edected with a minimum of interference with and disturbance of the building and room and lighting-space and at small cost.

I will describe my invention with reference to the accompanying drawings, premising that I do not limit myself to the precise details shown in the said drawings, in which- Figure 1 is a cross-sectional elevation; and Fig. 2 is a sectional view at right angles to the section, Fig. 1.

According to my invention I provide a passage or chamber A, in which is situated a coil or coils B or the like, through which the cooling or heating medium can be passed, and I also provide a passage or chamber or passages or chambers O, in which the moistening and filtering of the air is efiected.

These passages or chambers A and 0 communicate with each other, preferably by an opening I) at the lower part, provided with an upward deflector 5 so that the air which enters the attemperating passage or chamber A by the inlet a after passing through the said chamber A enters and passes through the passage or chamber or passages or chambers G and is moistened and filtered therein, as hereinafter explained, and passes therefrom into a pipe or duct D, leading to the apparatus, by which the air is caused to flow into and is distributed in the room or space to be ventilated, the last-named apparatus being preferably made in accordance with the speciiication of United States Patent No. 611,480, dated September 27, 1898, granted to me. The passage or chamber 0 (or each such passage or chamber) contains a permeable material c, which presents a large surface to the air. This material may be, for example, fabric of coir, or cocoanut fiber, or the like. Over this fabric water is distribgted, so that the air from the attemperating passage or chamber A in passing through this fabric takes up the requisite amount of moisture before it passes to the apparatus by which itis distributed in the room or space to be ventilated in addition to the said air being filtered by thus passing through the said fabric. The said fabric and the rest of the air-moistening device may be arranged as illustrated in the drawingsthat is to say, in the passage or chamber C (or each such passage or chamber) at top and bottom of which are rollers E, carried byshafts mounted in bearings. These rollers are preferably made of zinc tubes, as they should be light and not liable to become distorted in use, and over these is passed an endless sheet or band of the coir or cocoanut fiber or the like, as shown at c. \Vater is supplied to this sheet or band, which can be effected by any suitable means-for example, by a pipe supplying water to a trough 0 near the upper roller. A piece of fabric 0. which dips into this trough and is in contact with the band 0, so that water is conveyed thereto, the said fabric also acting as a guard to prevent air passing over the top of the sheet or hand without passing through it. In each passage or chamber'O the water should be supplied to that side of the sheet or band 0 which is opposite to that at which the air enters the passage or chamber 0, the communication with the said passage or chamber C for air from the air-attemperating passage or chamberA being preferably at the lower part, as shown, so that the air passes upward at one side of the sheet or band c,while the water passes downward at the other side of the said sheet or band, thus tending to cause the said sheet or band to travel or assist it in traveling with its rollers, to which or to one of which slow positive motion can also be applied, if desiredfor example, by a wheel driven by the water and geared to the axis of the top roller or by a driving-band and gearing, as shown in the drawings. A trough F beneath the said sheet or band 0 receives the surplus water,and the sheet or band is washed as it passes through it. The said trough F is provided with an outlet by which the water can run off when it reaches a level beyond that necessary to wash the band. Doors are arranged at G, so as to allow of ready access to the sheet or band a for cleaning purposes. The air-attemperatingand air moistening and filtering passages or chambers A and G can conveniently be arranged in pairs, as shown in Fig. 2, at each side of the passage or chamher D from which leads the pipe or duct D, by which the conditioned air passes to the distributing apparatus, the ends of the passages or chambers which are at each side of this passage or chamber D being closed at the parts extending from the back to or a little beyond the forward edge of the sheet or band 0, the parts of the said ends which are beyond this being open, so that the air passes through the two lines of the sheet or band.

The parts 'of the apparatus are arranged as may be most convenient for the situation where the apparatus is employed. The arrangement shown is very suitable for use in textile-spinning mills, for example, the, airattemperatin g passage or chamber or passages or chambers A being in the wall (or it may be inward of the wall) beneath a window or windows, and the air moistening and filtering passages or chambers O beingarranged in front of these, the passage or chamber D into which the air passes from these to the pipe or duet D and thence to the distributing apparatus, being between the two air moistening and filtering passages or chambers A, the saidpipe or duct D, by which air passes to the distributer,being beneath the floorof the room in which the air-conditioning apparatus is situated, the distributing apparatus depending from the ceiling of the room below, which is the room to be supplied With the conditioned air.

The passages or chambers for attemperating and moisteningand filtering the air are preferably of small width and deep and long, as shown, so that comparatively thin sheets of air of considerable width pass therethrough.

I may provide in combination with the attemperating-chambers A means for admitting steam thereto for moistening the air in addition to that effected by the water in the moistening and filtering passages or chambers aforesaid.

I claim as my invention- Apparatus for ventilating with conditioned and moistened air, said apparatus comprising a chamber, upper and lower rollers car rying an endless band adapted to travel Vertically in a given direction, a trough for the lower roller, a trough above the upper roller adapted to cause the band to be wet on that half which is traveling downwardly, an opening to the outside, heating-coils between the opening and the chamber, deflectors adapted to send the air upward against the half of the band traveling upwardly to assist in its movement and. an opening from the interior of the chamber to the interior of the building through which the air is drawn, thereby forcing a blast from the deflectors against the band, substantially as described. 7

In testimony whereof I affix my signature in presence of two witnesses.

JOHN ALSTON HART.

Witnesses:

GEORGE H. LEWIs, JOHN BRADLEY.

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