US2258731A - Combination lamp and fan unit - Google Patents

Description

Och 1941- A. E. B LU MENTHAL 123 3 I I I COMBINATION LAMP AND- FAN UNIT I 7 Filed April 14} 1938 2 Sheets-Sheet 1 v I INVENTOR. '7 4 ffl/uw@w/ a/ w iwwr ATTORNEY Oct. 14, 1941.

- COMBINATION LAMP'AND FAN UNIT Filed April 14, 1938 *2 Sheets-She et2 V V INVENTO R /."XOM ZJZ MIZ/I d/ .BY BMQ/XL M 'ATTORNEY.

- A. E. BLUMENTHAL 2,258,731 ,7

Patented Oct. 14, 1941 N17 OFFICE COMBINATIONLAMP AND FAN UNIT 7 Alexander eam n; Pittsburgh, Pa. .Application April 14, 1938,'Serial-No. 291,865

14 claim (01. zen-2 195) My; invention. relates to a combination lamp and. fan unit for the purpose of air circulation,

conditioning, and illumination. Heretofore, at-

tempts to create-such a unit have not been 'successful insofar as I am aware. Previous' constructions have not-received public approval for the reason. that'the unit wasnot sufliciently artistic for internal use; or where some semblance of pleasing appearance was obtained, it was at the expense of the operating characteristics'and silence'oi the fan, or'at the expense of the efliciencyof the lamp as a source ofillumination, or both. I

. .It is accordingly a eneral object of my invention to create a'combination lamp and fan'o'f attractive appearance. a

It is a further object of my invention to create a combination lamp and fan unit capable of performing, its function as a fan silently and effectivelyas well as capable of performing its function as a source of illumination efficiently;

.In achieving the above and-'other'objects' of myinvention, I provide deflectors'which' guide the: intake and outletair to and from the unit along proper flow streams or paths. The shape and pointsof termination of the defiectors conformto an artistic and attractive design so as to make a pleasing impression." Moreover, the deflectors shield the working parts of the-fan, that is the motor and fan blades, from view, and one oiithe air deflectors is utilized also-as a reflector; for the illuminating means pf the unit, thereby performing twofunctions. In addition, I cause a small amount of light from the illuminating means .tofall directly and indirectly uponthe visible surfaces of a majority of the deflectors. These, surfaces may be painted with pastel shades or otherwisetreated so that when the indirect light falls upon them an engaging light effect of enhanced value isobtained':

It is accordingly a more .or. less specific object of my invention to produce. a fan having a plurality of spaced deflectors arranged in an attractive manner, and which completely. hide the moving and power fan parts from view.

A further innovation ,byimy invention is the utilization .of a single member for guidingthe flow of air and at the same time actingtoreflect light from the illuminating means in "the 'unit in a desired direction or directions.

Many other objects, innovaticns,and novel features of my invention will be apparent from the following description thereof, takenin conjunction with the drawings, in which:

Fig. 1 is an elevational'view of one embodiment i of my invention. v s

,-; Fig. 2 is an exploded sectional perspectiveview of a part thereof. f V Fig. 3 shows a modifiedsupporting element of my unit.

; Fig. 4-shows a modifiedhead portion of my combination unit. Fig.5 shows an embodimentfor a hanging unit employingthe principles of my invention.

Fig. 6 shows an exploded construction of a bracket spider that can. be employed as a supporting structure. j

Referring to the embodiment shown in Figs. 1 and 2, the combination unit comprises a downwardly dished base flll, supported upon legs ll.

In "a conventional manner, three stem rods 12, arranged at the comers of an equilateral triangle, are clamped between the base I 0 and a housing l3. 'The housing l3 comprises a cast, pressed} spun 'or otherwise formed cup-like member having an annular base l4 integral with an upstanding slightly tapered tube l5 which hasits smaller diameter towards the rods i 2. I employ this form of housing because I obtain symmetry in the head unit indicated in its entirety'by the numeral l6. Secured or fastened in any'suitablemanner along the inner periphery of the annular base H and extending downwardly therefrom between the rods I2 is-a small cup ll for a purpose to be hereinafter described. Iron pipes (not shown) of a diameter small enough to pass through the rods l 2,fand of a length somewhat greater, are within the rods l2. v As} is common in the art, these pipes are threaded at both ends; The lower ends maybe screwed into tapped holes in the base I!) if the latter is sufilciently thick for the purpose; If not, the pipesmay' have nuts or the equivalent at the bottom end abutting the underside of the base in accordance with usual practice. The upper" ends of the pipes have nuts [8 screwed thereon which serve to clamp the rods l2 between the base l0 and the housing [3, thereby creating r a rigid pedestal'structure indicated in its e'ntirety by the reference numeral I9. If the pipes screw into tapped holes in the base, the nuts l8 are the tightening means by which the rods I 2 are clamped as aforesaid. If the pipes have nuts on the'bottom ends thereof then these nuts or the nuts 8 may be the tightening means.

A cup 20 is the unit about which the elements of head I 6' are supported. Thiscup has a taper corresponding generally to that of the housing l3 so that the head maybe assembled on the pedestal by inserting .the-jcup 20 into the hous ing, the tapering of the parts resulting in a snug matingfit ample togive asolidassemblyp While anyappropriate type of ,fit,,detachable or not may be employed, Iprefer thetaper fit since this fit has noprotruding parts to mar the appearance of the unit and is easily manipulated. By making the head andl'pedestal detachable I can interchange different pedestals with different head units and soprovidea widerange of lamp selec tions with a minimum stock of head and pedestal supporting an inlet deflector 21.

units. Moreover, because the pedestal and head unit are easily assembled and dismantled, transportation of the unit is facilitated. This is of particular merit, and a decided advantage in such businesses as the, undertakers profession in which paraphernalia must be moved from place to place.

The fan comprises a motor 2! suspended vertically within cup with an air space between the motor frame and the cup as shown more clearly in Figs. 2 and 4. The fan also comprises a four blade silent propeller 22 secured to the .upward'inasmuch as Ihave found-this form to vertical shaft 23 of the motor, although any other propeller of the silent type may be substituted. The propeller propels air upward in the structures shown. The fan of Fig. 2 is supported by two parallel brackets 24 resting on thecup 20. Only one bracket is shown in Fig. 2, theother being identical and on 'theother side of the shaft. I prefer to support they fan by extending bolts (not shown) through appropriate aligned holes in the end plate or the motor and the brackets 24, and by means of nuts 25 securing the motor to the bracket. e

It may be observed in Fig. 2 that the brackets 24 are rigidly secured to the cup 20 by means of bolts and nuts or rivets 28 which also ,aid in Three brackets 28 arranged 120 degrees apart are rigidly secured to the cup 2|! by bolts and nuts or rivets 30. I The deflector 21 also is supported by the last named securing means. The brackets 28 supportan air deflector 3|; an air deflector 32, and a combination air deflector and shield member 33. Slotsare cut in the deflectors 3| and 32 to provide bent over lugs .34 arranged to cooperate with the brackets 28. 1 Holes are provided in these lugs and in the brackets so that bolts and nuts or rivets 35 may be insertedtherethrough rigidly to secure the parts. The ends of the brackets 23 are turned to provide a means for yield an eihcient and silent air stream. The ends of the propeller blades are substantially opposite the smallest diameter of the deflector 33 which atthis diameter just clears the outermost path of the blades. Bythis construction I prevent air eddy currents which not only are a source of noise but also decrease the over-all efllciency of the air moving unit.

In my preferred construction the deflectors 21, 3| and 32 terminate abovethe bottom of the deflector 33,,andliesubstantiallyin a plane whichis in proximity tothe propeller." The deflectors 21, 3| and 33 are equally spacedand have gentle, concave outward .gcurvres of: decreasing radius downwards. I prefer to terminate the lower end of the. deflector-32somewhat beyond the deflector 33 while the deflectors 3i and 21 are of increasing height but decreasing diameter respectively.v The upperdeflector l2 terminates below the top of'the deflector 33 and lab! gentle curvature. throughout with concavity outward, as shown, and is spaced from the deflector-133 .a somewhat greater distance than that between deflectors 32 and 33. It may=be seen, however, that the heightof the deflector is such as to give a symmetry ,of appearance. @The deflectors as a whole have a harmony of design of flaring elements and hide. from normal view thepropeller andother internal structures which would, if visible, mar. the appearance of the unit. I The element is shaped to provide a concentration, or dispersion, or both, of the light'from the spheroidal part of the bulb ".1 In general the curvature ofthe element 44 as a light flector issufllciently-gentle to provide a smooth securing deflector 33 by means of bolts and nuts or rivets 36. a

At' its upper end, the deflector and shield member 33 has fastened thereto three brackets 31 arranged 120 degrees apart, the ends of which have turned up portions 33 supporting a cup 40. The cup 40 has an opening in the center of its base (not shown) to which a lamp socket ,4! is secured within the cup 40 in a well-knownmanner, e. g. by an externally threaded tube of the socket assembly extending through'the opening and a nut on the outside of the cup screwed thereon with the cup base clamped between the socket assembly and the nut. The brackets 31 also support an air deflector 42, and three upstanding brackets 43 are secured to brackets 31 to support'a combination air deflector and light reflector H. The manner by which the brackets 31 and ",and the deflectors 33, 42, and I4, and thecup 4 0 are fastenedmay follow the principles described for the lower ele-- ments and it is not deemed necessary to burden this description with such details which'are ob viously subject to a wide choice of equivalents.

' The number of bracketsand theirarrangement is largely a matter of choice but it is important that whatever the construction the bracket supporting members be hidden from normal view. By normal view I mean generally, the visible picture'of the combination to a person observing the unit during customary positions and actions in the premises in which the unit is located.

The deflector and reflector has a central air flow path on its under side whereby the element 34 also. acts iasan air deflector. The cup 40 and the combination deflector and reflector 43 are positioned so as to be. substantially hidden from view by the deflector l2, and their positions relative to'thepropeller-may be made to depend on the direction it is desiredto have the out flowing air go. a

vThe neck 41 of the-bulb is below'the reflector M which with modern frosted lamps may be deemed a secondary source of illumination. Light coming from the neck illuminates directly or by. reflection, or both, the outside surfaces of the deflectors and .by painting these surfaces in softpastelshades Iobtain a verypleasing light effect. Obviously the outside surfaces of the deflectors if theybe metal may be polished or othera wise treated'to obtain any lighting effect desired. The inner surfaces of the lower deflectors 3| and '32, and the shielddeflector33 may be polished or otherwise treated as by painting white to provide better reflecting, surfaces for more emcient utilization of the light. Moreover, by increasing the size oftheopening I! I can increase the amount of light from the bulb which ultimately falls upon the outside surfaces of the deflectors. I prefer to choose the speed, of the fan motor and theflnumber of blades in the propeller such that the product of the two will provide a flicker frequency great enough to prevent, due to human persistency of vision, any.

opening 45 serving two purposes, one of which is chosen to create a visible flicker.

b for the reflector-44.

Power may be supplied to the unit from a two wire lamp cord 50which extends through one of the iron pipes aforementioned;andterminates in one of the members of a household detachable plug The other member of the plug has a two wire cord connecting to a two'circuitcanopy switch 52 mountedon'the base 20, which is of the" having knobs independently common variety V rotatable about a common axis."

The knob 53 may be" part 'of a one way switch for' controlling'the supply of power to the motor while theknob 54 may be part of a multi-way tionable degree.

switch for controlling thedifierent circuits to the bulb 46 which in my'embodiment'is' of the two filament type connected to give three different light intensities. Obviously, the number of ways controlled by the knobs will depend on the type of bulb used, and on the'motor control. Thus, if; a

inulti-speed motor is desired, the'knob' 53 can con trol more'tha'n' one circuit. 0f'course','if one desires,"structurally independent switches may be employed to controlthe lamp and the motor.

The leads fro'in 'the switch to; the motor arehidden from view in the cup 23, and the cable lead-55 from the switchto the lampii conducted along one of the brackets 28,'up the inside of the shield deflector 33, and along one of the brackets 31 to the lamp socket. The cable may be secured in'position by one or two turns of 'wire on cord 55);

which winds around thecable and .bracketas shown; As many such iast'e'ning'means'may be.

employedas is deemed necessary adequately to hold the cable in place. 'This cable, it maybe seen, is also hidden from view and isout' of the path of the four blade's'of the air propeller. v -Ingassembling' the head on the pedestal the male and female detachable plug members are cooperatively engagedand the entire plug may be set into ,the cup I! which is provided for that purpose. When the taperinghousing' l3 and the cup 20 are properly mated, the switch 52 extends through a hole5! in the annular base H. The taper fit betweenthe housing l3 and cup 20 is designedso that the switch 52' protrudes a suilicientdistance below'the housing I3 tob'eoperable. This fit, when secure, also provides space betweenthe bottom of the cup 20 and .the base 14" so that the bottom of'the' cup 20 does not rest upon the nuts H! or the lamp'cord 50. e I

A central aperture 58 is provided in the base of the cup"!!! as shown in Fig.4, and-is of a diametersufficient to permitthe plug 5| to pass therethrough' The bottom ofthe motor 2| is spaced from thebo'ttom of the-cup 20 so that if desired the plug 5| may be inserted upward through the aperture 58 and'disposed in the cup 20'ratherthan in the cup IT. This adapts the head'unit to a pedestal having a single'stem rod which would naturally be secured in the center of the cup I3;

In this figure the bracket 31' is placed edgewise so as to minimize its resistance tothe air flow. The ends are bent sideways as shown'and the lug cuts in the deflector 42' are such as to provide alug cooperating with the bracket 31. The bracket43 fastens directly on the bracket 3'|"without a bend'buta twist is made at its upper end to obtain a secure fastening support My combination unit is easily adapted to some degree of air conditioning. Thus, aremovable humidifier 60 may test within and on the "deflector". The humidifier has its walls shaped so that when in position the air flow between it and In Fig. 3 isshown a modification of the bracket 31.

deflectors, not obstructed to any objecand a capped covered port 62. through which the supply of; water in the humidifier may be,,re-. plenished; "If'd'esired, adisinfectant (not shown) maybe hung within and on one of'the deflectors Or'a heating unit (not so as not to be visible; shown) may beincorporated in thGT SPaQ ES DBftween deflectors 21, 3|',; and32, for example,' in a manner as to be hidden from view, as is obvious to a skilled person V. I v

Inoperation of the fan, the intake air is guided to the propeller in gentle .flow paths by the deflectorszl, 3| and 32;:3ind the bottom portion of deflector 33 while" the outlet" air is; similarly guided by the upper portionpf the deflector 33 and deflectors 42 and 44. 'W hen placed inarooin; a markedcirculation of air is obtainedas is apparent since air'is "drawn from" below and'f'ex hausted above the unit resulting in somewhat cir cularfair'currents the room. Manifestlythe configuration and number of the deflectors may be varied toyary the "paths of the'air currents by makingthedeflector Land the upper portion a of deflector 33 of greater o'r'lesser concavity, and

the same is' equally true of the lower portionoi the deflector 33 and deflectors 21; 3| and'32i The curvature of the deflectors will b'e determined largely by the I type and use of the combination unit inasmuch as in a table lamp structure or'the; like for example, it may be desired to'discharge instances, orfmore' the air-vertically in some nearly horizontalin other instancesto' blow air directly upon persons seatedabout'the table on which the unit rests. However, I prefer to discharge the air in a unitiresting o'njthe floor generally upwards so that circu'lationof fair is obtained'without drafts. f It may be observed that I provide apertures63 in thecup' 20 through which ,an amount of air mayzbe'drawn'that will effectively cool the motor Moreover, the lamp socket holder cup 40 is 2L positioned directly above the center "ofth'e pro-' peller, at which place there is substantiallynoair flow thereby providing very little, if any, interference 'air' flow; and resulting" in quiet oper'-' ation. .I may also provide beads such as 64-'a't r the outer peripheries of the deflectors ior ornamental purposes. 7 I y.

A distinct advantage I'obtain with myunit is the effective circulation and therefore intermix ing of fair withina room. In thismanner a uniform temperature is obtained. By having the lower'deflectors'nestedasshown and of gradual ly-decreasing diameterfIprevent air exhausted from the upper part of the unit from' being immediately drawn back into the unit, which'I had found to bea serious fault and which decreased the effectivenessof the unit considerably.

In Fig. 4 I 'show'another embodiment fora head unit capable of beingused upona pedestal.

The construction of the inlet deflectors is along the lines of that of Fig. 2 but the outlet portion has three spaced deflectors 55, 56 and 61 the upper of which also acts as a reflector for a light bulb 46. 'Apertures 68 may be formed in these deflectors if desired to aid in-the indirect lighting of the outside surfaces of thedeflctors but The humidifier has awick 6| integral arms 82.

tion by long bolts having spacers ll, I2 and l3 properly spacing and holding the deflectors.

,For greater rigidity brackets such as H secured;

to and between deflectors may be .utilized. As

many bolts' and brackets may beemployed as are deemed essential. i i v I R My invention is not limited to units resting upon a floor, andin Fig. 5, .I show the general principles of my invention applied to a fixture of the chandelier type, overhead from a ceiling. Such a unit is usually wider than the floor type unit and I have therefore shown four inlet deflectors The number of inlet deflectors willdepend largely on the desired appearance of the unit butthe (i l si-- tion and configuration conform to the. construc tion principles described for "the embodiment of I Figs. 1 and 2. 'I n'a unit of the chandelier type a wall switchusually controlsthe power supply and I have added a pull chainswitch 15 for controlling the motor. In this unit for the sake of simplicitythe bulb isof single intensity and the motor a single speed motor. However, multi-in tensity .bulbs and multi-speed motors may...be

employed with appropriate wiring andswitches,

as is obvious to the ordinary electrician. It may beobserved that the top ,deflector has a bowl portion l1 and this deflector conforms in shape to the usual fixture for. reflecting and dispersing the light. If it be desired to obtain lighting ef h fects upontheoutside surfaces of thedefleotor an opal glass unit or other translucent or transparent member 18 may be inserted in an aperturev of the deflector. l6 cutout for the purpose.

In Fig. 61 show another and preferred structure by which the different parts of myunitcan be supported; Instead of separate bracketssuch as 24 and 28 of Fig. 2, I provide a cast or otherwise formed spider 80 comprising a ringliwith As, many arms ma ...be provided as desired but I have found that three arms spaced l20'degrees apart resultin a satisfactory support. The arms 80 'each have end v lugs 83'and intermediatelugs 8Q integraltherewith.. The endsof deflectors such as 21, 3|, {2

and 33 abut these lugs an d bolts or rivets may be inserted through cooperating holes inthe, de-;,

. flectors and lugs 'by means, of. which the parts.

may be secured to the spider. The angles of the lugs andtheir number will, of course, correspondto the deflectors fastened thereto. I

The ring 8i also has protuberances or ears 85 through which the bolts aforesaid on the motor 2| extend so that the motor may be suspended within the ringfll. After the assembly of the motor to the ring, the cup "I having switch 52 mounted thereon may be securedto the ring through the medium of bolts passing through aligned holes 86 and 81 after the proper wire connections have been made. I also may cast or form a supporting structure equivalent to the cup '40 and the brackets 31in a similarmanner, as is at once obvious. I

It is clear that many other embodiments may be constructed utilizing the teachings of my in} vention, as for example, while I have shown the deflectors as tubular-like members of surfaces of revolution yielding a circular cross section, the cross section may be formed to any desired shape suitable to the purposes of my invention,

and thedeflectors themselves need not be con tinuous at all cross sections. I therefore desire that the following olaims and terms used therein be given a broad interpretationlimited only by the prior art. V i

that is, one suspended o 7 outlet deflector, and

I claim; i 1. A fan for a room or similar enclosure, comprising a rotatable propeller for propelling the. air-flow axially thereof means for rotating said propeller; a tubular shield and air deflector member about said propeller, having "an intermediate portion inclose proximity td said propeller; tubular, flared, concave. outward, air inlet and. all

outlet deflectors havingpne of their ends within, and spaced from, 's'aidfmember, but in proximity to said propeller, andhaving their other. ends extendingbeyond said ni'en'iber, said-deflectors V being: flared from said propeller for quietly ing the air -flow 'ingentle curvedarcs directly to and from saidpropeller, which arcs are substantially tangent, at said ,propelleryto a'line parallel tasaidfaxialdirection {or theair-flow. I f 2. Afan for. aroom orsimilarenclosure, comprising a rotatable propeller forpropelling air axially thereof; means for'rotating said propeller a tubular shield andair deflector member about said propeller, having an intermediate portion in close proximity to said propeller; concentric, tubular, flared air inlet deflectors. said deflece tors being concave outward, the outer, offsaid deflectors having one end within said member.-

and its f'oth'er end. projecting beyond an edge of. said member but of substantially the same periphery as the. said edge, the. last said de flector be ns Spaced fromsaid member, ends of 3. The structure of claim" 1' including a sub stantially frusto-conical f air. U axially within, and spaced from, the first. said having an undulating outer outlet deflector surface for guiding the air-flow, the said truste conical deflector being inverted and over' said propeller.

4. Th structure .of claim including} substantial1y. frustoeconical air outlet; deflector axially within, and spaced from, thefii'rstsaid .outletdeflector, and having an undulating outer surface for guidingthe air-flow, the said frusto conical deflector beinginverted and over said propeller; and lighting means within said frustoconical 1 deflector which thereby ,also acts as a reflector therefor. I

' 5. The structure of claim 1 in which said member is concave outward with its shortest periphery intermediate its ends and. in proximity to said propeller the. axial length of said member being only slightly greater than that of said propeller. e I r 6. A fan for a room or similar enclosure, comprising a rotatable propeller for propelling air axially thereof a motorior rotating said propeller; a tubular shield and air deflector member about said propeller, said memberbeing concave outward with its shortest periphery in proximity to said propeller; concentric, nested, inlet air deflectors of relatively gradual increasinglength and decreasing radii inward, the inner of. said deflectors outwardly encasing said motor; nested air outlet deflectors; said deflectors being each other to guide the air flow to and propeller in gently curved arc's which cave outward and substantially tangent, substantially at said propeller, to

7. A combination lamp and fan unit comprising a fan having a propeller for propelling air substantially'vertically upward, spaced air inlet deflectors and spaced air outlet deflectors on respective sides of said propeller, said deflectors lines substantially parallel to the axis of rotation of said propeller.

slightly flared and cooperating with said member and from said are con-' being substantially tubular and flared outwardly and away from said propeller for quietly guiding the air flow to and from said propeller in gently curved vertical concave-outward arcs, indirect illuminating means for projecting light generally upwardly, and means for mounting said indirect illuminating means within said outlet deflectors, said indirect illuminating means and deflectors being constructed and arranged so that light from said illuminating means falls on outside surfaces of certain of said inlet deflectors.

8. A combination lamp and fan unit comprising a fan having a motor and a rotatable pro-.

peller driven thereby, said propeller being adapted to move air substantially vertically, a sub-.

propeller on both propeller, a substantially tubular air inlet deflecr tor having one end terminating within and spaced from said member and the other end below said member-ya substantially tubular air outlet deflectorlhavingone end terminating with-i in and spaced from said member and the other end above said memben the first said end ofsaid air inlet deflector and the first'said-end of said air outlet deflector being' in proximity to said propeller, saidmember and said deflectors being flared for quietly. guiding the air flow to and from saidv propeller in gently curved vertical 3 concave-outward arcs, the 'said deflectors having a maximum size transverse T to theaxis of said propeller approximately the 'samei or-lessfthan, a

' that of said member.

12.- As an article of; manufacturelan air cir-. culating device for use in an enclosure,. comprising a vertically extending pedestal having a base support at one end and an air-circulating head ately above the center of said propeller, whereby it does not seriously interfere with the air flow.

9. A combination lamp and fan unit comprising a fan comprisinga motor and a rotatable propeller for moving air axially of said'motor, a tubular member about said propeller, a plurality of spaced, concave outward,'nested air inlet deflectors with the relatively inner of said deflectors terminating below the relatively outer of said deflectors, said deflectors encompassing said motor, an illuminating means, a tubular, flared, air outlet deflector having oneend near said propeller terminating within, and spaced from, said member and extending above it, a second air outlet deflector having an end within, and spaced from the first said outlet deflector,

said second deflectorbeing above the center of said propeller and constructed and arranged as a reflector for said illuminating means.

10. The unit of claim 9 characterized by said second air outlet deflector having an open bottom, and said illuminating means comprising a light bulb and means for supporting said bulb with a portion thereof within said second air outlet deflector and a'portion below said second air outlet deflector whereby outside surfaces of certain 01 said deflectors may be illuminated.

I outward arcs, said inlet 7 having a motor and 11. As an article of manufacture, a vertically extending pedestal having a base support at one 7 end and an air-circulating head at therother end, said head comprising a fan comprising a motor and a rotatable propeller forpropelling flectors being flared for at the, other end, said head comprising a fan comprising a motor and a rotatable-propeller for propelling airin the generaidirection of its axis of rotation, a substantially tubular member about and close to said propeller, spaced nested lower air deflectors having ends within said member terminating in proximity to said propeller for guiding inflowing air directlyto said propeller, I a

an upper air deflector having an end terminating in proximity to said propeller for guiding outsaid propeller, said de- 7 n guiding the air flow to i and from said propeller in gently curved concave- Y flowing air directly from outward arcs.

13. As an article of manufacture, an air cir-' -culating device for use in an enclosure, comprising a vertically extending pedestal having a base support at one end and an air-circulating head at the other end, said head comprising a fan comprising a-motor and a rotatable propeller for propelling air in the general direction of its axis of rotation, a substantially tubular member about and close to saidpropeller, spaced nested lower air deflectors having ends within said member terminating in proximity to said propeller for guidinginflowing air directly to said propeller, an upper air deflector having an end terminating in proximity to said propeller for guiding outflowing air directly from said propeller, said deflectors being flared for guiding the air flow to and from said propeller in deflectors terminating one below the'other with the lower end of the relatively inner of said inlet deflectors 'oi'smaller periphery than the relatively outer ofsaid inlet deflectors.

14. A combination lamp and-fan unit adapted for suspension ina room and comprising a fan in a single direction,a tubular shield and deflector member about'said propeller, flared spaced nested air inlet deflectorsfor guiding inflowing air directly to saidoutlet deflectors for-guiding outflowing air directly from said propelleii'a light bulb, and means for mounting said light bulb within the inner. I

deflectors, the last said deflector of said air outlet beingconstructed to serve as a reflectorfor light rays from said'light -bulb. I a

ALEXANDER E. BLUMENTHAL.

' air substantially vertically, a substantially tubularshield and air deflector member aboutysaid gently curved concave propeller for propelling air propeller, flared spaced air

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