US1694214A - Portable fan - Google Patents

Description

Dec. 4, 1928. 1,694,214

W. H. GINDER YORTABLE FAN 7 Filed Aug. 25, 1927 5 Sheets-Sheet 1 $3 hid 1925 07716596, My-W W. H. GINDER PORTABLE FAN Filed Aug. 25, 1927 5 Sheets-Sheet 2 w; H. GINDER PORTABLE FAN I Filed Aug 25, 1927 5 Sheets-Sheet 5 y%i% ya,

Patented Dec. 4, 1928 UNITED STATES PATENT OFFICE".

WILLIAM H. GINDER, OF HADDONFIELD, NEW JERSEY, ASSIGNOB, BY HESNE AS- SIGNHENTS TO ELECTED MANUFACTURINGCOMPANY OF AMERICA.

ronmnnn FAN Application filed Augustfifi, 192'). Serial No. 215,435.

This invention relates to portable fans adapted for use in oflices and households, etc. The principal object of the invention is to provide a fan which will'create a continuous 5 circulation of air in'all directions radially from the axis of the fan and substantially parallel to the plane of rotation of the'fan, whereby all persons seated around a table, upon which the fan is placed, will be aware of such air circulation.

Another object of the invention is to so construct the device that loose papers lying on the table, upon which the fan is placed, will not be disturbed by the circulation of air created by .the fan.-

Another object of the invention is to construct the device in such a manner as to permit of its usage as a base for a table lamp, ash receiver, flower holder, etc.

0 The construction of my invention will be.

fully disclosed hereinafter, reference being had to the accompanying drawings, of which f Fig. 1 is a side elevation of my improved an; p

5 Fig. 2 is a plan view;

V Fig. 3 is asectional elevation of the air deflecting cone employed in my device;

Fig. 4 illustrates the deflecting cone with a lamp attachment located therein;

) Fig. 5 illustrates a flower holder attachment adapted to be placed in the air deflecting cone;

Fig. 6 illustrates an ash receiverattachment;

Fig. 7 is a plan view of a modified form of air deflecting cone;

Fig.8 is a section on the line 8.8, Fig. 7;

Fig. 9 is an inverted plan view of another form of air deflecting cone;

Fig. 10 is a section on the line 1010, Fig. 9, and 1 Fig. 11 is a plan view of still another form of air deflecting cone.

My device comprises a base 1 in which is rigidly mounted an' electric motor 2, the armature shaft 3 of which is vertically disposed. On the armature shaft 3 is secured a fan 4 of ordinary construction.

Axially aligned with and located above the fan 4 and the shaft 3 is an inverted air deflecting cone 5, the apex 6 of which is positioned immediately adjacent the plane of rotation of the fan 4.

Secured to the motor casing 2 is a guard 7 comprising an open framework consisting, in

.the present instance, of heavy gauge hori-- zontally extending wires 8, 8, in which are formed eyes 9 for the reception of retaining screws 10. The wires 8, at the periphery of the guard 7, extend vertically, as shown at 11, to a plane above the fan 4, and thence horizontally, as shown at 12, and are secured, adjacent the apex 6 of .the cone 5, to a center plate 13 The vertical guard wires 11 are connected by circular horizontally extending guard wires 14 and '15, to which they are se-' cured in any suitable manner;

Suitably secured to the vertical portions 11 of the guardwires 8 are posts 16, 16. .These posts 16 extend vertically above the fan 4 and their upper ends are suitably secured to' the horizontally extending flange base 17 of the cone 5, adjacent the periphery thereof. The periphery of the guard below the horizontal wires 12 and the bottom of the guard, below the fan 4, is covered with a suitable wire mesh' 18 to prevent any objects from being placed in the plane of rotation of the fan 4.- The wire mesh 18 is secured to the guard wires 8, 11, 14 and in any suitable manner.

The truncated conical air deflector 5 thus supported from the motor base so as to position its axis concentric to the motor extends inwardly and downwardly from the substantially horizontal outer portion or base to a maximum curvature at the vertex, whereby air upwardly discharged from the rotating fan will be deflected horizontally without causing back pressure due to eddying adjacent the cone. y

The air deflecting cone 5, as shown in Fig. 3, is composed of sheet material suitably pressed into the desired cone shape, providing a cavity 20 in the upper side of the cone, into which may be placed a lamp attachment as shown in Fig. 4, said lamp attachment comprising a base-21 shaped in a manner corresponding to the shape of the cavity 20 of the cone 5. Secured within the base 21 of the attachment is a vertically extending stud or pipe 22 which is adapted to support any desired form of lam Fig. 5 illustrates a ower holder attachment comprising a base 21 and vertical stud 22 on the top of which is secured a perforated plate 23 for supporting the stems of the flowers. Obviously water may be placed in the base 21to keep the flowers fresh.

Fig. 6 illustrates an ash-receiving attachment consisting of a base 21" having a vertitrahy 24. i a i 7 and 8 illustrate a modified form of air eflecting cone in which the portion I 5 thereof, adjacent the apex 6 is corrugated as shown at 25. These corrugations extend radifilly andas they approach the periphery of t e base flan :17'} of the cone 5 they gradually-blend into the plane of said flange.

This construction and the constructions shown in Figs. 9 and 11 prevent aswirling of the air under the cone, and direct the air currents in a plane substantially parallel with the base flange of the cone.v

Figs. 9 and 10 show the cone provided with radially disposed fins or ribs 26 for' the purpose above described, and Fig. 7 11 illustrates the apex 6 of the cone 5 as being polygonal in cross section, the flat sides 27 thereof blending gradually in the single plane of the base flange 15 of the cone 5.

' From the foregoing description of the arrangement of the elements constituting my invention, it will be obvious that as power is supplied to the motor 2 and the fan 4 is rotatnd the air will be drawn from under the fan and forced against the inverted cone 5 which will deflect the air in a plane substantially parallel to the plane of the table or other support, upon which the device maybe placed. The circulation will be approximately as indicated by the arrows 1n Fig. 1. .By this arrangement of elements, the circulation of air will be constant in such plane and in'all directions radially disposed with re-' spect to the axis of the fan by means of which all persons seated around the table wlll be aware of the constantcirculation.

. The air being drawn from umder the fan will not disturb any papers which may be lying loosely on the table, thus the device is particularly adapted for use in oflices es- I peciallywhere a number of persons are assembled around a table, such as at directors 5 as being.

meetings, etc. In such aninstance, the directors may spread their papers out on'the table and at the same time enjoy the circulation of air created by the fan without'fear of their papers being scattered.

Obviously any form of speed control for the fan may be installed in the base 1 without departin from the spirit of the invention.

While% have shown a fan consisting of a hub 30 secured to the shaft 3 and having four blades 31, 31 secured to the said hub, each blade, being pitched at an angle with respect to the shaft for the purpose of causing a flow of air ina definite direction for the rotation of said shaft in a definite direction, other forms of fans may be employed for causing a similarflow of air without departing from the spirit of the-invention.

I claim:

1. A portable fan including a motor, a propeller driven thereby to rotate in a horizontal plane, an air deflecting cone supported in spaced relation to the propeller, and a perforated tubular housing supported in lateral alignment with the. propeller aiid having its upper edge so disposed with relation to the under surface of the cone as to lie in a plane below the emergent stream of air deflected by the cone.

2. A portable fan including a motor base, a propeller driven thereby to rotate in a hori: zontal plane, a truncated conical air deflector supported from the base with its axis concentric to the motdr and having a curved surface varying 'unifoimly from a maximum curvatureat the vertex to a minimum at the base: and discharging the air horizontally, and a perforated tubular housing supported in lateral alignment with the propeller and having its upper edge so disposed with relation to the under surface of the cone as tolie in a plane belowthe emergent stream of air deflected by the cone.

a WILLIAM GINDER.

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