US1978460A - Refrigerating apparatus - Google Patents

Description

Patented Oct. 30, 1934 UNITED STATES PATENT QFFC REFRIGERATING APPARATUS ration of Delaware Application March 7, 1932, Serial No. 597,172

3 Claims.

This invention relates to refrigerating apparatus and more particularly to means for controlling the discharge of air from anair conditioning means.

In cooling a room with an air conditioning apparatus, it has been found advisable to distribute the air upwardly but at an acute angle to the horizontal so that it slowiy falls to the floor and to remove the air at a point near the l0 door for the purpose of passing the air again over the air conditioning means. It is often desired that this discharge of air from the air conditioning apparatus be directed in a certain horizontal direction so that it will not directly strike any of the occupants of the room. Consequently, it is among the objects of my invention to provide an improved means for directing the air in a desired direction.

A more specific object of the invention is to provide a grille having a plurality of vanes therein for directing the air in a generally horizontal direction and to provide a. way in which the grille may be placed in different positions so as to direct the air in different directions.

A further object of the invention is to provide a grille of the form of a regular polygon having a plurality of vanes therein for causing a vertical moving column of air to be deflected partiailly to a certain horizontal direction and to so support the grille that it may be readily removed and replaced in a different position so as to direct the flow of air in another direction.

Further objects and advantages of thepresent invention will be apparent vfrom the following description, reference being had to the accompanying drawing, wherein a preferred form of the present invention is clearly shown.

In the drawing:

Fig. 1 is a vertical sectional view of an air conditioning cabinet embodying my invention, and

Fig. 2 is a top view of the air conditioning cabinet shown in Fig. 1.

Referring to the drawing and more particularly to Fig. 1, there is shown an air conditioning cabinet of a generally rectangular shape having vertical walls such as a wall 21 mounted upon the angle iron framework 22 which rests upon a suitable base 23 provided with' legs 24. Supported within the cabinet 20 there is provided, an air conditioning apparatus comprising an evaporator 25 for cooling the air. The evaporator 25 has a plurality of serpentine ducts 26 which are provided with a plurality of cross ns 27 to readily effect the transfer of heat from the air to the refrigerant within the serpentine ducts 26. Liquid refrigerant is supplied to the evaporator 25 through a conduit 28 which connects to an expansion valve 29, preferably of the automatic type. The automatic expansion valve 29 controls the owof refrigerant to the evaporator 00 25 which is conducted to the evaporator 25 through the conduit 30. In the evaporator 25, the liquid refrigerant vaporizes under reduced pressure and absorbs heat from the air which is circulated over the surfaces of the evaporator G5 and this vaporized refrigerant is returned to the compressor (not shown) through the return conduit 3l. Under ordinary conditions of atmospheric humidity and under ordinary temperatures of the evaporator 25, moisture condenses on the cold surfaces of the evaporator and trickles down into a catch basin 32 which is supported upon an angle iron sub-framework 33 in the lower portion of the cabinet. The catch basin 32 is provided with a drain 34 which per- 75 mits the condensed moisture to flow into a removable reservoir 35 located in the bottom of the air conditioning cabinet 20. The reservoir 35 is supported and may be removed after the manner of a drawer by taking od the removable front plate 37.

' In order to allow the air to circulate over the cold surfaces of the evaporator 25 there is a large aperture 40 provided in the rear wall of the air conditioning cabinet 20. In order to draw the air 35 between the fins of the evaporator and over the surfaces thereof at a rapid rate, there is provided a 4-bladed propeller type fan 41, located in the upper portion of the cabinet, which is driven by an electric motor 42 of a suitable type which is 90 suspended by means of four tension coil springs 43, each of which have one of their ends connected to a bracket 45 which is fastened to one of the upright frame members 21 of the air con ditioning cabinet. The inner end of the tension coil springs 44 is fastened to a bracket 47 which surrounds the motor 42. The shaft of the electric motor 42 extends in a vertical direction and has the propeller type fan 41 mountedr at its upper end so that the propeller type fan 4l draws the 100 air rst through the aperture 40 in the rear of the cabinet and then over the surfaces of the evaporator 25 into the evaporator chamber 49 Within the cabinet 20. The fan 41 then directs the stream of air upwardly from the evaporator chamber 49 Within the upper portion of the cabinet 20.

According to the present invention there is provided in the top 51 of the cabinet 20 an octagonal aperture and an octagonal flange 52 110 bordering the edges of this aperture in the top Wall 51 of the cabinet 20. An octagonal grille 52, provided with a iiange 54 at its outer edges, is removably seated on the flange 52 in the top 51 of the cabinet 20. The grille 53 is provided with a plurality of parallel deecting vanes 55 which cause the vertical stream of air discharged from the fan 4l to be deflected at an acute angle in a single horizontal direction. These vanes 55 have their ends fastened in some suitable manner such as by soldering, brazing, or welding to the ange 54. Inasmuch as the grille 53 is of a regular octagonal shape, it may be lifted and turned 1/3 of a turn or more and again returned to its place on the flange 52 directly above the propeller 41. In this way the discharge of air from the air conditioning cabinet 20 may be directed in almost any desired direction by means of this exceedingly simple method.

While the form of embodiment of the invention as herein disclosed constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. An air conditioner including a cabinet having a horizontal wall provided with a discharge aperture, air conditioning means Within said cabinet, power driven air circulating means for drawing air into the cabinet, passing it through the air conditioning means and discharging it through said aperture and adjustable air directing means comprising a horizontal grille having a periphery of regular polygonal form and having a pluraled to be received by said seat in a plurality of positions at acute angles to each other in a horizontal plane lwhile the cabinet and seat remain assembled.

2. An air conditioner including a cabinet having a horizontal top Wall provided with a discharge aperture, air conditioning means within said cabinet, power driven air circulating means for drawing air into the cabinet, passing it through the air conditioning means and discharging it through said aperture and adjustable air directing means comprising a horizontal grille having a plurality of varies for deecting the air discharged through said aperture in a direction at an acute angle to vertical and a seat for said grille on said horizontal wall having a shape corresponding to the periphery of the grille, said grille being adapted to be received by said seat in a plurality of positions at acute angles to each other in a horizontal plane while the cabinet and seat remain assembled, said grille being retained in its seat bygravity.

3. An air conditioner including a cabinet having a horizontal wall provided with a discharge aperture, air conditioning means within said cabinet, power driven air circulating means for drawing air into the cabinet, passing it through the air conditioning means and discharging it through said aperture and adjustable air directing means comprising a horizontal grille having a plurality of vanes for deflecting the air discharged through said aperture in a direction at an acute angle to vertical and a seat for said grille on said horizontal wall having a shape corresponding to the periphery of the grille, said grille being adapted to be received by said seat in a plurality of positions at acute angles to each other in a horizontal plane while the cabinet and seat remain assembled and being retained in any of the several positions to which it may be adjusted.

GEORGE F. HOFFERBERTH.

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