US821671A - Apparatus for heating, purifying, and distributing air in buildings. - Google Patents

Description

No. 821,671. PATENTED MAY 29, 1906.

J. RAPPERTY. APPARATUS FOR HEATING, PURIFYING, AND DISTRIBUTING AIR IN BUILDINGS.

APPLICATION FILED IEB.l,1905

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s SHEETS-SHEET z A I M No. 821,671. I PATENTED MAY 29, 1906. W. J. RAPFERTY. APPARATUS FOR HEATING, PURIFYING, AND DISTRIBUTING AIR IN BUILDINGS.

APPLICATION FILED FEB.1,1905.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

WILLIAM J. RAFFERTY, OF CHICAGO, ILLINOIS.

APPARATUS FOR HEATING, PURIFYING .-AND DISTRIBUTING AIR IN BUILDINGS.

Specification of Letters Patent.

Patented May 29, 1906.

Application filed February 1, 1905. erial No. 243,762.

To all whom it may concern.-

' Be it known that I, WILLIAM J. RAFFERTY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Apparatus for Heating, Purifying, and Distributing Air in Buildings, of which the following is a specification.

This invention is an apparatus for heating, purifying, and distributing air in buildings, and includes means also for moistening or varying the humidity of the air.

It is characterized by improvements with respect to the arrangement and construction .of the devices used to effectthese functions.

It includes means for taking air from the outside of the building, carrying it to heaters, (preferably steam,) passing it over water-pans and through saturated curtains or screens to moisten the air and purify it of dust and other impurities, and finally distributing the air through suitable ducts to the various rooms of the building.

The apparatus .is particularly adapted for use in schools, theaters, churches, and other buildings where air is to be supplied to a large number of persons.

- In the accompanying drawings, Figure 1 is a sectional plan on the line 1. 1 of Fig. 2 of the basement of a building provided with the invention. Fig. 2 is a sectional elevation thereof on the line 2 2 of Fig. 1. Fig. 3 is a sectional view of one of the water-pans. Fig. 4 is a perspective view of part of the Water pans and screen. Fig.5 is a vertical section of the screen on the line 5 5 of Fig. 6. Fig. 6 is a partial front elevation thereof.

Referring specifically to the drawings, A indicates air-passages, into which the air enters from the street or outside the building through the openings a in the outside wall of the building. The air first passes through screens X, extending across these passages. These screens may be the saturated screens hereinafter described or they may be ordinary screens of woven wire.

B represents the steam-heating radiators, located across the passages A. In front of these radiators are dampers B for varying the amount of air supplied.

A indicates passages leading to the fan F, which is conveniently disposed between the corners of diagonal walls N, so that the eye f of the fan opens to the passages A, and outlets f and f 2 may lead in opposite directions on two other sides, the remaining side formheating tubes, between which the air next passes after leaving the fan.

D represents ducts for distributing air to the various parts of the building, and these ducts may be provided with dampers operated automatically by air-pressure devices regulated. in a known manner by thermostats in the various rooms.

Beyond each set of pipes C is a chamber E, containing the vaporizing-pans and the cleaning-screens, by which the air is humidified and purified before passing into the ducts D. After being heated by the steam-pipes the air lacks humidity, and to supply this deficiency a series of water-pans V are employed. These pans are supported by suit able frames M and. are arranged in vertical and horizontal series extending across the chamber, as shown. They have preferably tapered front ends and may be conveniently made of galvanized iron. They are supplied with water from a pipe W, having branches W leading to each pan, where a float-valve cated at S receiving steam through branches S of the main steam-pipe S. To regulate the quantity of air passing between the pans, deflectors K are placed between the pans. These are pivoted to the frame M by pins k and are operated by a rod 70, connected to a hand-lever 7c on a quadrant. These deflectors may act to retard the flow of air to allow the same to take up more or less of the watervapor. Y Y

X indicates the saturated air-cleaning screen for removing the dust'and other impurities from the air and saturating the same before it is distributed. Several of these screens are placed behind the vaporizingpans, or one or more of them may be placed at X, so as to clean theair just after it enters the building and before it reaches the heaters. Each screen consists, preferably, of a web of loose strands of hemp or suitable fibrous ma- IIO terial. These strands are suitably attached to top and bottom strips 00, provided with snap-hooks for connecting the same to supporting rods. or rollers to the screen from a pipe above the same, which has a series of perforations, so as to continuously sprinkle the screen with water, which drips down over the strands. Any dust, soot, or other impurities in the air which passes through the screen is taken up by the water, which flows from the screen to a trough WW thereunder and thence to wastepipe.

X is a lever with pawl-and-ratchet connection to the roller 9: for drawing the screen taut. The screen is vibrated laterally by means of a vibrator consisting of an electric motor Y, having a crank connection with the end of the upper rod X This rod is loosely mounted in its hangers, so that the screen is vibrated across the direction of the air-current, and the dust from the air is more effectively collected than if the screen were stationary.

Instead of employing strands of hemp to form the curtain, as shown, the same may be made of perforated metal with slight corrugations, down which the water will flow, or of woven wire, wood, or other suitable material.

The apparatus is capable of summer use Water is supplied for moistening, purifying, and cooling the air. The use of heaters is omitted, and the air is allowed to flow over the pans and through the screens, which being supplied with cold water will cool the air, as well as performing the other fuDCtiOhS indicated.

What I claim as new, and desire to secure by Letters Patent, is-

1. In an apparatus of the kind stated, an air-moistener comprising a series of superposed air-pans placed across the air-current, which flows horizontally therebetween, and adjustable deflectors located between the pans and extending horizontally, across the current.

2. An air-moistening apparatus comprising a horizontal passage through which air is forced, a plurality of water-pans arranged in a series of horizontal rows one above the other and extending across said passage, and adjustable deflectors extending horizontally across said passage between the rows of pans.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WVILLIAM J. RAFFERTY. I

-Witnesses:

SIGNA FELTSKOG, H. G. BATOHELOR.

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