US2096596A - Casing for ventilating and air treating apparatus - Google Patents

Description

A. SARGENT Oct. 19, 1937.

CASING FOR VENTILATING AND AIR TREATING APPARATUS 3 Sheets-Sheet 1 Original Filed'May 10, 1933 INVENTOR 4.44570 SARGzF/VT BY- A RNEY Oct. 19, 1937. A. SARGENT 2,096,596

CASING FOR VENTILATING AND AIR TREATING APPARATUS Original Filed May 10, 1932 3 Sheets-Sheet 2 INVENTOR AL L6 701v SARGENT BY g RNEY

, 1932 3 Sheets-Sheet 5 Oct. 19, 1937. -A. S ARGENT CASING F OR VENTILATING AND AIR TREATING APPARATUS Original Filed May 10 Patented oce'ie, 1937 CASING FOR VENTHIATING AND AIR TREATING APPARATUS Allston Sargent, Bronxvillc, N. Y., assignor to Campbell Metal Window Corporation, New York, N. Y., a corporation of Maryland Original application May 10, 1932, Serial No; 610,351. Divided and this application January 13, 1934, .Serial No. 706,498

7 Claims.

in an eflicient unit structure which may be installed in a room or chamber, and which is provided with means, such as those disclosed and claimed in Patent 1,949,379, granted February 27 1934 on my application filed May 10, 1932, of which the present application is a division, for moving fresh air into the room or chamber from an outside source, and for imparting desired characteristics of temperature to the air within the casing, for example, to heat the air or to reduce its temperature to a degree desired.

The primary object of the present invention is to provide a casing suitable for the purposes specifled above, and characterized by features of construction and arrangement contributingto the mechanical simplicity and effectiveness of the casing construction, and to its production and installation at a relatively low cost, and to facility with which the casing may be opened up and restored to its normal condition, whenever this becomes desirable, as for the inspection, repair or replacement of apparatus within the casing.

The various features of novelty which charac- -terize the present invention are pointed out with particularity in the claims annexed to and forming a part of. this specification. For a better understanding of the invention, however, its advantages and specific objects obtained with its use, reference should be had to the accompanying drawings and descriptive matter in which I have illustrated and described a preferred form of embodiment of the present invention.

Of the drawings:-- 1 Fig. 1 is a view in front elevation of thecomplete casing installed in connection with a window of a room to obtain a supply of fresh air from a space below the raised sash of the window; Fig. 2 is a top plan view of the construction shown in Fig. 1, certain features of an adjacent wall and window being iii-horizontal section;

Fig. 3 is a view taken'similarly to Fig. 1 but on a larger scale and showing a portion only of the prises features of construction and arrangement complete casing shown in Fig. 1 and with parts broken away and shown in section to illustrate details or casing construction;

Fig. 4 is a vertical section on the line 44 of Fig. 1;

Fig. 5 is a section on the line 55 of Fig. 1;

Fig. 6 is a detail section on the line 6-6 of Fig. 1;

Fig. 7 is a detail section on the line or Fig. 4;

Fig. 8 is a detail in elevation of a damper operating device; and

Fig. 9 is a section taken similarly to Fig. 4 but on a larger scale and showing a portion only of a filter screen part shown in Fig. 4.

In the accompanying drawings, l designates, generally, an enclosure or cabinet adapted to be I installed in the space to be ventilated, preferably adjacent an outer building wall A'beneath a sill B of a window frame C and window sash D. The

, cabinet may be made of sheet metal and includes a rear vertical wall 2, vertical end walls 3 and a horizontal top wall 4, said end and rear walls rising from a base plate or board 5 which is adapted to rest on the floor E of a room. The end walls are each provided with. an inwardly directed edge flange 5 extending along the vertical and top edge portions thereof, which flanges are provided with inset edge portions 1 to which the top wall terminates about midway betwen the front and rear of the endpanels 3 as clearly shown in Fig. 2, and this front edge of the top wall 4 is provided with a down-set flange or lip 9 lying in the same, plane as the top flanges I on the end walls. At the lower,-front portion of the cabinet the flanges I are connected by a horizontal cross piece or flange l0, lying in the same vertical plane as said flanges].

The front of the cabinet is closed by-a detachable vertical wall or "panel II, the lower edge .of which rests on the base piece 5 and the upper edge of which is provided with aninwardly directed wall member I! at an angle to the front wall, and preferably in a horizontal plane, the vertical side edges of the panel I I and the member I2 resting respectively on the vertical and horizontal portions of the flanges I on the end walls 3, and the inner transverse edge of the member l2 resting on the flange 9, when the front panel is assembled in place. The front panel is detachably held in position to close the front of the cabinet by means of inwardly directed clips l3 at the lower portion thereof, which set over the flange l0 (Figs. 4 and 5), and by means of a clamping screw l4 passed through an opening in the inner edge of the member and threaded into the flange 9. The

front panel may be readily removed by disengaging the screw l4, and then lifting the panel vertically to disengage the clip members |3 from the flange I0, when it is desired to have access to the interior of the cabinet. As shown, the

interior of the cabinet is divided by a substantially vertical wall l5 and a laterally offset wall l6 into two compartments l1 and I8, which may be used for purposes presently to be described, said walls |5 and 5 extending from the horizontal wall 4 to the base wall5. The walls l5 and |6 extend from the rear wall 2 to the front edge portion of the cabinet, so that when the front panel member II is in place, the vertical and horizontal portions thereof contact the vertical front edges of the walls l5 and I6, and the top horizontal edge of the wall l5, respectively, to close the compartments l1 and I8 from each other.

At its rear portion the horizontal wall 4 is provided with an air inlet duct, preferably in the form of a box or trunk l9, provided with a rearwardly extending inlet duct or neck 28 projecting beyond the rear face of the inlet box IE! and adapted to overlie the window sill B adjacent to which the apparatus is installed. The duct or neck 20 is telescopically engaged, as at 2|, by a neck 22 of an inlet box extension member 23 having a forward open wall 24 provided with inlet louvres 25, the wall 24 having above its inlet opening a horizontal flange 26. The construction is such that when the apparatus is located in place, the inlet box 23 may, by virtue of the telescoping connection 2|, be adjusted so that the flange 26 may be projected into a window opening and located beneath a window sash D, the latter being lowered onto said flange 28 to seal the opening at this point. In order to adapt the inlet to windows of varying widths, the transverse width of the inlet duct is preferably less than the usual width of the windows, so that the air receiving end of the duct can readily be located between the vertical side members of a window' frame, and beneath a raised window sash.

In order to seal the space between the sides of the member 23 and the vertical portion of a window frame, I provide the ends of the box 23 with laterally extending, vertical channel-irons constituting flanges 21, each of which carries a filler piece or plate 28 having a flange 29 to abut the adjacent vertical face of the window frame. The filler pieces 28 are horizontally adjustable with reference to the plates 21 inorder to be adjusted to the width of the window, and for this purpose have horizontal slots 38 to' receive the shanks o1 clamping screws 3| carried by the plates 21 and adapted to receive clamping nuts 32 adapted to clamp the filler pieces rigidly in adjusted position against the plates. The filler pieces are provided 1 with horizontal flanges 33, which form a substantial continuation of the upper horizontal flange of the channel-iron, and together therewith may receive a suitable packing upon which the sash rests when lowered into engagement with the flange 28.

As shown, the inner end of the air inlet box 28 communicates through an opening 34 in the top wall 4, with the interior'of the compartment II,

but the interior of the air inlet box is closed ofl.

'by a forwardly curved baflle wall 35 from theining apertures in the end walls of the box 20 at the top thereof, the damper plate being movable by'said shaft to take a position across the interior of theduct 28, as indicated in dotted lines in Fig. 5, to thereby shut ofi the supply of air to compartment H, or to the position shown in full lines in Figs. 4 and 5 to permit the air to enter compartment H. The damper is operated by an extension of its pivot shaft which carries a crank arm 38 having a spring locking pin 39 to cooperate with spaced sockets in a quadrant 40 mounted on the end of the box 20-.

The top wall |2 of the front panel member is provided with arectangular opening 4| overlying the compartment I1, and also with an opening 42 overlying compartment l8, these openings constituting the air outlets from said compartments, as will be presently described. In each opening is seated a removable grill 43 having a surrounding flange 44 resting on the wall I2 around its opening.

Within the compartment H in the arrangement shown, is an air impelling means preferably comprising a centrifugal blower fan 5 mounted in a double-eyed casing 48, the outlet 41 of which connects with an upwardly flaring discharge duct 48, the upper end of which rises to a point closely adjacent to the casing wall I2 and is substantially coextensive with the outlet opening 4| therethrough. This centrifugal blower operates to draw fresh air up through the duct 48 and out through the opening 4| into the space containing the unit. The discharge duct 48 is rectangular in cross-section and made preferably of sheet metal, and the walls thereof are covered externally, as

'is also the circumferential wall of the blower casing, with a layer 49 of sound deadening and absorbing material such as acoustic felt, suitably attached thereto by cement. The inner surfaces of the duct 48 are likewise covered with sound deadening and absorbing material 50 cemented thereto and covered by a layer 5| of perforated leather, orother material, such as cribble cloth to prevent the air blast from dislodging flber from the sound deadening material, and cemented in Place, as at 5|. In duct 48 is a deflector plate 48' extending transversely thereof from front to rear, and which may be inclined as disclosed in said Patent 1,949,379, and which acts to deflect or distribute the air so that the discharge thereof will be equally distributed over the area of outlet 4|. The sound deadening and absorbing material described serves to absorb the sound waves propagated through the inlet 34 to the compartment, and prevent external noises entering the room through the outlet 4|.

Between the inlet 34 and the compartment I1, is an air filtering screen 52, comprising a rectangular metallic frame 53 support ng a wire mesh screen 54 over which is laid and held a sheet of suitable air filtering material such as 55, held in place by an overlying wire backing 56 (see Figs. 7 and 9), hinged at ."lli to the frame, and at its free end having a locking pin 58 to project through a slot 59 in the strip 59 and be engaged by a slotted holding latch 58" pivoted on said strip to thereby detachably hold the backing down over the material 55. The screen is slidably held in inclinecbchannel-guides 51, mounted, respectively, on the wall l5 and the end wall 3 of the chamber H, the screen being inserted in said channel-guides through a slot 58 in the wall 4, the upper edge member of the screen frame 53 being provided with'a closure finishing means formed by the previously mentioned strip 58 without the propagation of sound from external sources into the room, due to the fact that the sound waves are deadened and absorbed, in the chamber l7 and by the construction of the outlet duct 48. It will be noted that the screen 52 is of large area relative to the area of the inlet 34, so as to provide an extended filtering surface-to the incoming .air, and thereby reduce resistance to the air in being drawn by the impeller into the compartment I1, and assure that the impeller will deliver efliciently an ample supply of fresh air through the outlet 4|.

In the compartment l8 in the arrangement shown is located apparatus for receiving air from the interior of the room, treating such air, and

returning it to the room, with a desired cha'racteristic, for example, temperature, humidity etc. In order to supply the compartment l8 with air from the interior of the room, the front panel II is provided at its lower portion with horizontally disposed inlet louvres 8|, which for symmetry extend entirely across the panel, but are closed by a plate 6| (shown in section in Fig. 4 and indicated by dotted lines in Fig. 1), adjacent the compartment I! so that air from the room cannot enter the latter compartment. In the compartment I8 is a centrifugal fan blower 62, mounted in a double-eyed blower casing 63 having an upwardly directed outlet duct 64. This casing and duct are covered externally with sound deadening material 65, such as acoustic felt, so .as to deaden sound which might emanate from any vibration of the fan and duct. The upper end of the duct 64 terminates preferably at a point below the horizontal center of the compartment l8 and is so arranged as to deliver the air upward toward the outlet 42 from the compartment.

In the arrangement shown, above the upper end of the outlet duct 84 is arranged a heat exchange unit 66 including vertically disposed headers connected by transverse horizontal flow pipes 61,- upon which may be mounted vertically disposed fin members to provide a plurality of vertical flues through which the air delivered by the blower flows upwardly and has its tempera ture modified by the heat exchange element. The latter maybe either a heatvemitting elementto raise the temperature of the air, or a cooling element in the low temperature side of a refrigerating system in order to lower the temperature of the air, but is shown as a heat radiator receiving steam through an inlet nipple 18 and regulating valve II from a steam supply pipe 13, and discharging air and water of condensation into a return pipe I1. This valve Il may be provided with a thermostatic cpntroller 12 subject to room temperature.

It will be understood that if the heat exchange element is to be employed to reduce the temperature of the air in the room, and which is driven through the compartment 18 by the impeller 62, the heat exchange element instead of being supplied with a heating fluid by the pipe 13, would be supplied with a refrigerant through said pipe,

and the refrigerant after cooling the heat exchange element would be returned to the refrigerant source by means of the return pipe 11. In this case, the heat exchange element would abstract heat from the air passing through the compartment l8, thereby coohng such air and delivering it through the outlet 43, at a lower temperature into the room, and thereby producing a cooling eflfect therein. The heat exchange element is supportedrigidly in the casing by means of horizontal stringers 88 rigidly connected in any suitable manner to thewall l5 and the right hand-end wall 8, the headers of the element 66 being bolted, as at I l to said stringers. I When the heat exchange element is to be employed for heating the air, the casing may enclose means for adding moisture to the heated air to humidity the same, the means'shown' for the purpose comprising a relatively narrow water holding receptacle or tank 82 arranged in the space between the pipes 61 of the heat radiator and open at its top. The tank 82. is accessible for insertion and removal when the casing member forming the front panel II and top panel I2 is removed. In use heat radiated by the element 66 vaporizes water within the tank 82, and the vapor formed mixes with the air moved upward through the compartment 18. Water may be supplied to the tank 82 as required to maintain a suitable water level therein through a supply I pipe 86 and valve 8'! controlled by afloat 88 restof the rotor of an. electric motor 96 seated on the base board 5 and arranged in a recess 96 or extension portion of the chamber l8 which the partition wall I6 is offset to provide. This arrangement permits the motor to be located not only in the path of the relatively cool air entering the lower openings 6|, but also to be sufiiciently far away from the heat exchange element 68 in r the chamber l8 as not to be deleteriously affected by the heat emitted therefrom.

Further references to the construction and arrangement of the air'moving and air treating means within the casing compartments l1 and I8 is unnecessary, as the specific form and character of those means form no part of the present invention and are fully disclosed and claimed in my above mentioned application, Serial No. 610,351, and have been referred to herein primarily only by way of illustration of an advantageous use which may be made of the features of casing construction and arrangement disclosed and claimed herein. g

While in accordance with the provisions of the statutes,-I have illustrated described the best form of embodiment of my invention now known to me, it will be apparent to those skilled in the apparatus disclosed without departing from the spirit of my invention as set forth in the appended,- claims and that in some cases certain features of my invention may be used to advantage without a corresponding use of other features.

Having now desc ribed my invention, what I claim as new and desire to secure by- Letters Patent is:

1. A casing structure for housing ventilating and air treating apparatus and comprising a casing body adaptedto rest upon the floor and adjacent a vertical wall of a room and including and walls and a flrsttop wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof, a second top wall portion connecting the end walls at the front of the casing and joining the first top wall portion to close the remaining part of the casing top, and a front wall portion extending between, the end walls and closing the front of the casing, said second top wall portion and said front wall portion being secured together and removable from the casing as a unit to permit inspection of the interior .thereof, without disturbing the relation of said casing body to said floor and vertical room wall.

2. A casing structure for housing ventilating and air treating apparatus and comprising a casing body adapted to rest upon the floor and adjacent a vertical wall of a room and including end walls and a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof, a second top wall portion connecting the end walls at the front of the casing and joining the first top wall portion to close the remaining part of the casing top, said second top wall portion having an opening therein for the discharge of air from the interior of the casing, a front wall portion extending between the end walls and closing the front of the casing, said second top wall portion and said front wall portion being secured together and removable from the casing as a unit to permit inspection of the interior thereof, without disturbing the relation of said casing body to said floor and vertical room wall.

3. A casing structure for housing a ventilating and air treating apparatus and comprising vertical end walls, a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof and being provided with a flange along its forward edge, said end walls having inwardly directed flanges at the vertical and top edge portions thereof, a second top wall portion connecting the end walls at the front of .the casing and joining the first top wall portion to close the remaining part of the casing top, the second-named top wall portion being supported along its side and rear edge portions by the flanges on the end walls and firstnamed top wall, respectively, and a. front wall portion extending between the end walls to close the front of the casing and engaging the vertical flanges on said end walls, said second top wall portion and said front wall portion being secured together and removable from the casing as a unit to permit inspection of the interior thereof.

4. A casing structure for housing a ventilating and air treating apparatus and comprising vertical end walls, a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof and being provided with a flange along its forward edge, said end walls having inwardly directed flanges at the vertical and top edge portions thereof, a second top wall portion connecting the end walls at the front of the casing and joining the first top wall portion to close the remaining part of the casing top, the second-named top wall portion being supported along its side and rear edge portions by the flanges on the end walls and flrst named top wall, respectively, a; front wall portion extending between the end walls to close thefront of the casing and enga in the vertical flanges on said end walls, said second top wall portion and said front wall portion being secured together and removable from the casing as a unit to permit inspection of the interior thereof, and means for detachably securing said second top wall portion to said first top wall portion.

5. A casing structure for housing ventilating and air treating apparatus and comprising a casing body adapted to rest upon the floor and adjacent a vertical wall of a room and including end walls and a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof, a second top wall portion connecting the end walls at the front of the casing and joining the first top wall portion to close the remaining part of the casing top, a transverse frame member connecting said end walls at the lower and front portions thereof, a front wall portion extending between the end walls and closing the front of the casing and engaging said transverse membensaid second top wall portion and said front wall portion being secured together and removable from the casing as a unit to permit inspection of the interior thereof, without disturbing the relation of said casing body to said floor and vertical room wall.

6. A casing structure for'housing ventilating and air treating apparatus and comprising a casing body adapted to rest upon the floor and adjacent a vertical wall of a room and including end walls and a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof, a second top wall portion connecting the end walls at the front of the casing and joining the first top wall portion to close the remaining part of the casing top, a front wall portion extending between the end walls and closing the front of the casing;

said second top wall portion and said front wall lation of said casing body to said floor and vertical room wall, a transversely extending member connecting said end walls at the lower portions ond top wall portion to said first top wall portion.

'7. A casing structure for housing ventilating and air treating apparatus and comprising a casing body adapted to rest upon the floor and adjacent a vertical wall of a room and including end walls and a first top wall portion connecting the end walls at the rear of the casing to form a partial closure for the top thereof, a second top wall portion connecting the end walls at the front of' the casing and joining the first 'top wall portion to close the remaining part of the casing top, a front wall portion extending between the end walls and closing the front of the casing, said second top wall portion and said front wall porengagement of the latter with said transversely extendin'g member by vertical movement of said front wall portion, and means for detachably securing said second top wall portion to said first top wall, portion. J

ALLSTON SARGENT.

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