USRE18489E

USRE18489E - Mobbis herman

Info

Publication number: USRE18489E
Authority: US
Publication date: 1932-06-07

Description

M. BERMAN VENTILATING FAN June 7, 1932.

Original Filed Aug. 7, 192a Reisaued June 7, 1932 OFFICE MORRIS BEBMAN, OF BROOKLYN, NEW YORK vnn'rrnarme FAN Original No..1,888,809, dated December 29, 1981, Serial 3N0. 297,922, filed August 7, 1928. Application for reissueflled February 2, 1932. Serial No. 591,683.

This invention relates to ventilating apparatus. It is particularly directed to a combined cooling and air circulating device for circulating cooled air in rooms and for the 6 like purposes.

An object of this invention is to provide in apparatus of the character described, wherein the air is cooled prior to circulation, a device having a fan, refrigerating means including a compressor, and a single motive means for operating the entire device, mounted on a single shaft, the device furthermore being arranged for oscillating movement as a unit whereby a constant stream of cooled air may be effectively circulated over a large Y the casings 40 and 24, 1s a rotatable shaft 28 area.

A further object of this invention is to provide a neat, compact and unitary device of the character described which shall comprise comparatively few and simple parts,

he of economical construction and yet positive and smooth in operation and practical and eflicieut to a high degree in use.

Other objects of this invention will inpart be obvious and in part hereinafter pointed out.

-The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts, which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a front elevational view of a device embodying the invention andwherein the evaporating coil is arranged on both sides of the fan;

Fig. 2 is a rear elevational view of said device with parts broken away to show the interior construction;

Fig. 3 is a cross-sectional view taken on line3-3ofFig.1;-

a Fig. 4 is a partial cross-sectional view of the fan casing and illustrating a modified construction wherein the evaporating coil is arranged only behind the fan; and

enlarged annular section 24, to the front of which there is attached a fan guard 24a. The rear portion of casing 40 is covered by end wall 7 A pair of. partition members 31, 310. made preferably of heat insulating ma-v terial, divide the casing 40 into three compartments. Axially disposed with respect to extending thru suitable bearing openings in end wall 7 and artitions 31, 31a, Said shaft extends beyon the end wall 7 and attached to said extending portion is a vertically disposed bevel gear 10. Rotatably mounted in a pair of lugs 41 extending rearwardl from the casing wall 7 is a vertical shaft 1 provided with a bevel gear 10a at the upper end thereof, meshing with said bevel ear 10. Attached to the lower end of said shaft 11 is an eccentric 42 to which is preferably .attached a link 13 pivoted to said eccentric as at 12, said link 13 being connected to the base 16 for producing an oscillating motion for the casing C in the well known manner in I the electric fan art.

Mounted within the compartment formed between partition 31 and end wall 7 is a fan 3 adapted to direct a current of air rearwardly. Mounted on said shaft 28 in the compartment formed between partitions 31, 31a is a rotary compressor 6 of ordinary construction adapted to compress volatile liquids such as ordinarily used in machines employing rotary compressors. .A motor 5 may be mounted within the compartment formed between the partition 31a and the large casing portion 24, said motor being of the ordinary construction and having the armature thereof attached to said axial shaft 28. Attached to the outer end of said shaft 28 and disposed within thecasing portion 24 is a fan 1 adapted to circulate a current of air forwardly as the motor 5 operates.

the compressor shaft with. the

2, 8 with the The electric power controlling means for the motor 5 may be of ordinary construction such as in the usual electric fan. A switch handle 17 may be provided in the base 16, and a rheostat 30 likewise mounted in said base for permitting adjustment of the motor speed.

A similar switch handle 17a'controls the operation of the refrigerating mechanism, by controlling the supply ofpower to a suitable clutch. The clutch (not shown) may be one of the magnetic type, suitably arranged to be drawn into position to engage motor shaft when the switch handle 17a is thrown into power-supplying position, the clutch being arranged to disengage the compressor shaft from the motor shaft when the handle 17a is in cut oil position. The design and opera tion of such clutches being well known, it is not thought to be necessary to show and describe it in detail. V A condenser coil-4 may be mounted Within the compartment on one side or the other of the fan 3, said coil preferably being disposed adjacent the end wall 7 and between the fan 3 and said end wall, and being connected to the compression or outlet end 46 of the compressor 6 by means of pipe 45. A reservoir or tank 9 attached to the casing '40 is, adapted to communicate with the con- 2 and 8 being interconnected. A pipe 21 preferably interconnects the evaporation coil tank' 9 containing the condensed fluid such as ammonia, sulphur dioxide or the like. Saidevaporating coil is adapted to be connected to thesuction end 18a of the rotary compressbr as by a pipe 18. An expansion valve 27 interposed iii the pipe 21 is adapted to permit expansion and evaporation of the condensed liquid coming from the condenser coil 4 and tank 9, the evapora tion at reduced pressures taking place in said

coils

2, 8 whereb heat is absorbed from the surrounding air or supplying the latent'heat for the evaporation, as is well known in the art.

For permitting effective circulation of air through the device, rear wall 7 is provided with openings 23 in the upper port-ion thereair to circulate around and cool the motor 5.

and drained thru tube 32a in the lower por tion of said casi fig. Obviously, when the condenser is water cooled, the

casing openings

23, 23a and 26 may be closed by any suitable shutters, and the fan 3 removed. A flexible outlet pipe 33'of suitable diameter attached to the upper portion of the casing 40 adjacent the end wall 7 thereof, may serve as a conduit for exhausting warm, air from within the casing to the outer air or the outside of the room in which the 'cooler is placed. I

It will now be readily understood that upon movement of the switch blade 17 for starting the operation of the motor 5, and

upon movement of the switch blade 17a, the

culated underv higher pressure to the conv denser coil 4, said fluid being cooled in said coil by means of the fan blades 3 and Water cooling means to a temperature below the boiling point of said fluid at the higher pressure. Some of the substance in the condenser will hence condense into liquid as shown at 15 in the drawing.

evaporator coils

2, 8, obviously being at reducedv pressure (being connected to the suction side of the compressor) will have a low boiling point and hence the substance passing through the expansion valve 27 will evaporate. The evaporation of the liquid passing into the

coils

2 and 8 will thus cool the air s urrounding the fan blade 1, thus causing "cooled air to be circulated through The substance in the the room. As shown in Figs. 4 and 5 of the drawing, the evaporating or cooling coil or pipe 2 may be arranged in'back only of the fan l so that said coil will not interfere with the flow of air in front of the fan.

In buildings where a refrigerating pipe line has been installed, the evaporating or cooling pipe may be suitably arranged with respect to an electric oscillating fan of usual construction for circulating cooled air in various directions. In loft or office buildings Where more than one fan is to be operated, rotary means other than the motor 5 may be used to operate all of said fans. Obviously, the condenser may be detached from the central shaft and mounted at a higher level in the room and fan 3.

ated by a single motor means, the entire unit being adapted to oscillate for effectively cirvculating' cool air over a comparatively large area.

It will thus be seen that there-is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

' Having thus described my invention, I .claim as new and desire to secure by Letters Patent:

1. Apparatus of the character described comprising .a motor, a fan operated by the motor, for directing an air current and means for cooling said air current including a compressor mounted coaxi'ally with said motor, and an evaporating coil having a plurality of turns therein, part of the turns being arranged in front of the fan and part of the turns behind the fan.

' 2. A device of the character described comprising an electric motor having a central shaft, a fan mounted on said shaft, refrigerator .means including a rotary compressor mounted on said shaft and actuated by the motor, and an evaporating coil arranged adjacent the fan and on both sides thereof.

3. In apparatus of the character described,

in combination, an electric motor having an axial rotatable shaft, a fan mounted on said shaft, refrigerating means for cooling air circulated said fan including a compressor operatively connected to the motor, and evaporating coil adjacent the fan, and a condenser coil remote from the fan, and means for oscillating said motor.

4. A device of the character described com prising a base, a casing mounted on said base for pivotal movement, a motor having an axial shaft mounted within said casing, refrigerating means within said casing, actuated by said motor, fan means mounted on said shaft, and means for oscillating said cas- A device of the character described comprising a motor having a central shaft, a fan mounted on said shaft and refrigerating means including a compressor operatively connected to said shaft and actuable thereby, an evaporating coil adjacent the fan, a condensing coil, and conduits connecting the co'ls to the compressor, said motor and re frigerating means being oscillatory as a unit.

6. A device of the character described comprisin a base, a casing mounted thereon, a plurality of partitions mounted transversely of said casing forming compartments, a motor mounted in one of said compartments,

refrigerating means mounted in other of said compartments and means for oscillating the caszin relatively to the base.

in combination, a base, a casing mounted thereon, a plurality of heat insulating partitions mounted transversely of said casing dividing same into a plurality of compartments,

an axial shaft extending through'said compartments, a motor in one of said compartments mounted on said shaft and adapted to rotate the same, a rotary compressor in an other of said compartments and actuableiby said shaft, and in another of said'compartby said shaft, a fan in another of said compartments and a condenser associated with i said compressor adjacent said fan.

' 9. In apparatus of the character described, the combination with a motor having an axial rotatable shaft extending from the opposite ends thereof, of fans mounted on said extending ends of saidshaft, said fans being arn apparatus of the character describedp ranged for directing air currents in opposite directions, refrigerating means comprising a condenser adjacent one of said fans, and an evaporator adjacent the other of said fans, and means for oscillating. said shaft about an axis other than the axis of the shaft.

10. The combination with a fan, of means for oscillating said fan about an axis other than the axis of rotation thereof, and a refrigerating unit arranged adjacent the fan and oscillatorvtherewith for cooling the air surrounding the fan, whereby the fan projects a stream of cooled air continuously in different directions. I 4 11. The combination of a revoluble fan, means for oscillating said fan for directing the current of air projected by said fan in different directions, and a refrigerating unit associated with said fan and oscillatory therewith for cooling the air about the fan. i

12. In apparatus of the character de scribed, a casing, a condenser coil at one end of the casing, venting means for said casing including an outlet pipe for venting that part of the casing surrounding a coil and including openings at other parts of the casing, a fan at the other end of the casing, an evaporating coil surrounding the fan, a compressor in the casing interposed between said coils.

and means between said coils for rotating the fan and the compressor.

13. In apparatus of the character de- I scribed, a casing, a condenser coil at one end of the casing, a fan at the other end of the casing, an evaporating coil surrounding the fan, a compressor in the casing interposed between said coils, means between said coils for rotating the fan and the compressor, and 10 means for oscillating the casing whereby the air cooled by theevaporating coil is: projected by the fan in different directions.

14. In apparatus of the character de scribed, a casing, a fan at one end of said casing, an evaporating coil surrounding the fan,

-means in the casing for evaporating fluid in said coil and for circulating said fluid, and means'for oscillating the casing.

15. In apparatus of the character dego scribed, a casing, afan at one end of the casing, an evaporating coil adjacent said fan, a motor in the casing, refrigerator elements in the casing connected to the coil, one of said elements being actuated by the motor, and

means for oscillating the casing and the parts carried thereby as a unit.

16. An apparatus of the character described, in combination, an electric motor having an axial rotatable shaft, a fan mounted so on said shaft, refrigerating means for cooling air circulated by said fan including a compressor operatively connected to said motor, an evaporating pipe disposed adjacent to and behind said fan, and a condenser remote from said fan, and means for oscillating said motor.

17. An apparatus of the character de scribed, in combination with a motor having an axial rotatable shaft extending from the 40 opposite ends thereof, and fans mounted on I said extended ends ofsaid shaft, said fans being arranged for directing air current in opposite directions, refrigerating means comprising a condenser adjacent one of said fans,

and an evaporator adjacent the other of said fans, said condenser and evaporator being located between said fans and said motor, and means for oscillating said shaft about an axis other than the axis of said shaft.

Signed at New York city, county of New York, State of New York, this 21st day of January, 1932.

' MORRIS BERMAN.