US753027A - Jacob amkom - Google Patents

Description

PATENTED FEB. 23, 1904.

J. AMROM. OSGILLATING ELECTRIC PAN.

APPLIUATION TILED JUNE 27, 1903.

30 MODEL.

UNITED STATES Patented February 23, 1904.

PATENT OEEIcE.

JACOB AMROM, .OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO DAVID EUER, OF NEWV YORK, N. Y.

OSOILLATING ELECTRIC FAN.

SPECIFICATION forming part of Letters Patent No. 753,027, dated February 23, 1904.

Application filed June 27, 1903.

T0 on whom it may concern.-

Be it known that I, J ACOB AMROM, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Oscillating Electric Fans, of which the following is a specification.

My invention in electrical fans relates to that type in which the air-agitating means is efiected through the oscillation of one or more fans through the instrumentality of electromagnetism; and the object of my invention is to devise a fan of the character stated where in the least amount of weight which enters into the construction of the operating mechanism and framework of the fan will result and at the same time provide a more simple mechanical means for oscillating fans of this character than any of those of which I am at present aware and previous to my invention.

The principal feature of my invention is characterized by the manner in which I accomplish the oscillating function of the fancarrier, and still another feature will be found in the manner whereby the usual hand-fan may be attached with facility to the actuating means. Novel features will also be found in the adjustment of the mechanism whereby a more or less air-agitationis effected; likewise the facility for'replacing the receptacles carrying the necessary charge for operating the power apparatus.

Other features of novelty will be observed hereinafter in the description relating to the operation of the different parts which enter into the construction of the electromagnetic mechanism and the kinematic instrumentalities for translating the movement of the former into an oscillating movement of the fan-carrying means. These, together with other features, are clearly illustrated in the drawings and described in the subject-matter of the specification and finally emphasized in the claims.

In the drawings, Figure 1 is anelevational view of my improved fan designed as a standtype, and in this view part of the mechanism is illustrated in dotted lines, so as to show Serial No. 163,330. (No model.)

the position which the motive-power apparatus occupies. In this figure the battery is also 5 illustrated in dotted lines. The middle portion of the column of the framework is broken away,so that the actuating parts may be shown somewhat enlarged. Fig. 2 is an enlarged plan view, taken partly in section, on the lines X X of Fig. 1, the battery-circuit being diagrammatically illustrated.

Similar characters of reference relate to identical parts, wherein- A is the pedestal, preferably formed of spun 6 or pressed sheet metal, though in some instances where decoration is an essential feature I may form the pedestal A of wood, such as ebony or the like. To the pedestal A is secured or integrally formed the column B, 5 which I prefer to construct of a thin metallic shell. Carried by the column B is a hemi- I spherical casing B, suitably secured to the upper portion of the column B B The upper hemisphere is mounted on the lower hemi- 7 sphere B, so as to form a cap, and is constructed so as to be readily removed by means of a bayonet-joint b, as will be clearly understood by the illustration.

Located within the column B is the electrical charge for operating the electromagnetic mechanism or motive-power apparatus, which consists of suitable primary batteries, preferably so-called dry batteries I) 6 These are held in position by a swinging coverplate O, which swings on a pivot O. The battery 6 b is connected in circuit, as illustrated in Fig. 2, as will be hereinafter more fully explained.

Vertically mounted in covering hemisphere 8 5 B is a rotary capstan 0r boss G which depends downwardly within the covering hemisphere B by the cylindrical extension D, which is slotted for a portion of its length vertically at D. The bearing of the capstan C 9 upon which it rotates upon a vertical axis, is at the ribbed ring D At the upper extremity of the capstan or boss C is a hinge-joint d, uniting a pair of clamps or clips d (V. These clips, together with the hinge-joint and the capstan with its concomitants, constitute the oscillating means for setting a pair of fans E E, fragmentorily illustrated, into motion. The office of the hinge-joint (Z is to permit of adjustment of the fans vertically, while the clamps (Z (Z permit of the removal or free insertion of the fans E E, as Well as a means for adjusting the angle at which their plane moves when in motion.

The electromagnetic mechanism (illustrated in Fig. 2) provides the motive power for setting the oscillating means just described into motion. I accomplish this feature of my in vention by providing a pair of electromagnets With an armature and a contact-making means, Which maintains the contact of the swinging armature for a considerable period of the stroke of the latter, and after which period contact is abruptly broken, so that the electromagnet which is included in the circuit in which the electrical contact is made and broken shall have a continuity of power throughout the range of the armature-stroke and a return stroke of equal duration effected through the instrumentalities of a reactive retracting-spring. The manner whereby I carry this feature of my invention into practice is exemplified in the instrumentalities involving the electromagnet (0, provided with an armature a, swinging on an axis ((7, which armature is retracted by the retracting-spring a in the manner following. In the illustration the direction of the current from the primary battery 6 is assumed to be that indicated by the arrow through the conducting-wire 3, through the windings of the electromagnet a, conducting-wire 4, retracting-spring a, armature a, into a contact-maker 5, spring-pressed lever 6, seating-spring 7, toggle 8, togglespring 9, insulated spring-post 10, conducting-wire 11, and back to battery 7/, when the electromagnet a will be energized, and exerting its magnetic force upon the armature a the latter will be caused to oscillate upon its pivotal axis (6 maintaining contact until the insulating edge 12 of the contact-maker 5 Will register with the inclined plane 13 of the insulated seat 14, whereupon the armature a will have executed a working stroke by the influence of the magnet a, and the electrical circuit, due to the contact-maker 5 bearing upon the armature a in the manner aforesaid, will be interrupted by the lever 6 under the influence of the seating-spring 7 passing into the recess 14. The effect of the insulated edge 12 of the contact-maker sliding downwardly upon the insulated inclined place I will be to pull the lever 6 forward in the direction of the arrow and oscillate the toggle 8 against the action of the tension-spring 9, and at the instant the magnetic force exerted by the electromagnet (4 upon the armature a ceases the retracting-spring a will react against the tension of the spring 9, with the result that the contact-maker 5 will be lifted upward out of the inclined plane 13 of the insulated seat 14, when contact between the contact-maker 5 and the armature a will be refi'xstablished in the manner aforesaid. due to the long contact period which the con tact member 5 thus makes with the armature (1/ the rather slow oscillating movement of the latter ensues. The principle upon which I multiply this oscillating movement, so as to effect the desired angular movement of the fan-oscillating means, is depicted in Fig. 1, and, as illustrated, the lever I oscillates with the armature a on the pivot (0 when the capstan or boss C will be set into oscillation in unison with the oscillations of the armature a, which movement will be kept up as long as the apparatus is in order and the energy of the battery I) L is maintained.

I am aware that previous to my invention oscillating fans have been constructed which have mainly been driven by cranks, and I do not, therefore, claim broadly as my invention the oscillating feature of my improved fan; but

hat I do claim as new, and desire to secure by Letters Patent of the United States, is-

1. In an electrically-operated fan, the combination with an oscillative fan-support, of an oscillative armature engaged therewith, an electromagnet in circuit with the armature for moving the same in one direction, a spring for retracting said armature, a lever also in the magnet-circuit and in electrical contact with the armature during the magnet pull and out of contact with said armature at the termination of such pull to permit the retracting-spring to move the armature and restore the contact of the lever therewith.

2. In an electrically-operated fan, the combination with an oscillative fan-support, of an oscillative armature engaged therewith and having an insulating-notch, an electromagnet in circuit with the armature for moving the same in one direction, a spring for retracting said armature, a lever also in the magnet-circuit and in electrical contact with the armature during the magnet pull and adapted to enter the insulating-notch at the termination of such pull to permit the retracting-spring to move the armature and force the lever from the said notch again into electrical contact with the armature.

3. In an electrically-operated fan, the combination with an oscillative cylindrical fansupport having a recess in the wall thereof, of a pivoted armature provided with a lever engaging said recess, and an electromagnet,

It will be observed that retracting-spring and circuit making and.

breaking provision for oscillating the armature.

4. In an electrically-operated fan, the combination with a column provided with a lower casing-section, of an upper casing-section dctachably connected with the lower section, a

and adapted for oscillating the armature.

In testimony whereof I have signed my name to thls specification 1n the presence of two sub- IO scribing Witnesses.

JAooB AMROM.

Witnesses:

H. E. MAHER, PHILIP K. STERN.

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