US924601A - Electric fan. - Google Patents

Description

F. DIEHL & A. F. BECKER.

ELECTRIC FAN.

APPLICATION FILED MAY 11, 1908.

924,601. Patented June 8, 1909.

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WITNESSES:

7 Z LLO bu; \C- BY v ATTORNEY i I UNITED STATES T ()Fldlilifi.

' armatore-frarne, one of which is shown as a bushing i) disposed within a lateral bearing "commodation 'to the armature-shaft 8,-by meansof the locking screw'll. The arma- FREDERICK DIEHL AND ADOLPll F.

BECKER, 0F ELIZABETH, NETV JERSEY, ASSIGNORS 'lO DIEHL MANUFACTURING (JOMPAN Y, A (URPURATION OF NEW JERSEY.

ELECTRIC FAN.

Specification of Letters Patent.

Patented June 8, 1909.

Application filed May 11, 1908. Serial No. 432,048.

'To all whom it may concern:

Be it known that we, FREDERICK DIEH and ADoLPn F. BECKER, citizens of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Electric Fans, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an improvement in that class of electric fans forming the subject of the United States Patent to F. Diehl and A. F. Becker No.867,914, dated October 8, 1907, in which the pro )elling motor whose armature-shaft carries the propeller-wheel is pivotally mounted upon a standard upon which it receives an oscillatory movement for diffusion of the air current induced by the fan.

The present invention has for its object to improve the construction and increase the effectiveness of the mechanism of the fan, and it consists in the constructive features herein shown and described and pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of a fan embodying the present improvements, Fig. 2 an enlarged sectional elevation of the mechanism for producing the oscillatory movement of the motor-framc upon its sup mrting standard, Fig. a rear side view of such mechanism partially in section, and Fig. 4 a detail soclact-plu "-iown herein constructed with l the bearing screws 3; and *1. The motor is provided with the usual armature whose shaft is 1SJ()1.U.lHtl(.tl111 suitable bearings 1n the hub l0 of the motor-frame in which it is securely locked irom endwise movement, while or standa d 1 having the verd yoke 2 sustaining the ver- 3 tional view of one of the spring-pressed conallowing aslight rocking movement for acnal gearwheel.

constitutes a rigid connection between the having a width equivalent to the or curved concentrically with the axial lino ture-shaft carries at the forward end the usual propeller-whe l 12 and has fixed there on on the opposite end by means of a setscrew 13 an eccentriell encircled by a wear ing ring 15 secured within the hub of the gear-wheel 25 by means of the pins 17.

Mounted loosely upon the bearing hub 10 is a sleeve 18 having in its rearward face a cavity embracing the eccentric 14. Within the bottom of this cavity is fitted the annular plate 19 having its 'apertured inner portion fitted to the annular cut-away end portion of the bearing-boss 10 and secured to the same byineans of fastening screws 20. To the outer periphery of the plate 19 is fitted the correspondingly recessed adjacent face of a ring 21 locked from turning in respect of the same by means of one or more transverse pins 22. This ring 21 is provided with an annular series of gear-teeth to form an inter The almularaplate 19 thus bearing hub 10 and the internal gear-wheel 21 which latter is thus held in fixed relation with the motor-frame, of which the hub 10 is shown as an integral part.

Overlapping the internally toothed ring 21 is a second internally toothed ring or internal.

gear having tee-t of substantially the same pitch but dillerir slightly in number from those of the internal gear 21, the gear 23 having a 'llange extending outwardly beyond the periphery of the gear 21 and being secured by fastening screws 24 to a seat provided there for in the recessed outer portion of the sleeve 18. The teeth of both internal gears 21 and 23 are engaged. upon one side of the armalure-shaft by a common inter-meshing exterb Mnally toothed planet-gearwheel 25 having which the motor-frame o is ournaled to oscuate, and having ffiillull integral therewith upon the rear face of the member 18 and 50-,

cured thereto by means of suitable fastening screws 26, said ca .)-plate having an axial bearing recess 27 to receive and support the outer end of the motor armature-shaft 8. he sleeve 18 is also provided with an oil- I cavity 28 closed by means of a screw-plug 29,

and in register with the alined oifholes 30 and 3i in the bearing hub and bushing 9, re spectiveiy, through which oil is supplied to the surface of the shaft 8. Y

The sleeve 1 is provided upon one side with a segmentalseries of radial sockets 32, in each of which is fitted a cylindrical plug having in its outer end a necked or reduced portion 34, and itself provided in its outer end with a cylindrical cavity or recess in which is pivoted the reduced inner end of a plug 36 of soft ,or yielding material, such as leather, preferably secured therein by means of a transverse pin. 37. Interposed between the inner ends of the socket 32 and the plug is a-spring operating to yieldingly maintain the plugs 36 in, outer-position upon the carrying sleeve 18 wherein they are adapted to establish temporarily a rolling contact alternately with the parallel ways 6 and 7 the outward movement of the plugs being limited by engagement of the inner end of the necked portion 34 with the headvof a stop-screw 39 tapped into the carrier 18 with its head slightly overhanging or projecting into the outer end of the socket 32.

In'the operation of the device, the rotation of the motor-shaft 8 causes the planet-gearwheel 25 to revolve upon the eccentric f4 and to thus impart by a wedge-like action adifferential movement of the internal gear-wheel 21 in relation to the fixed internalgeai wheel 23, which causes the slow rotation of the sleeve or carrier 18, as described in the said United States Patent No. 867,914. In the circular movement of the carrier 18 the heads of the wearing-plugs 36 successively engage each of the ways 6 and 7, the spacing of the ways from the axis of rotation being such that the wearing-plugs arecaused to yieldshghtly in their rolling action upon the stationary ways, thus establishinga continuous rolling contact therewith, every engagement of eachway involving in practice the simultaneous contact of at least twoofthe contact-plugs,

thus producing a uniform swmging move ment of the motor-frame carrying the actuating member or sleevel8 As will be readily understood, the engagement of the series of contact-plugs Withone of thestationary ways carried by the standard 1 produces a swinging motion of the frame in one direction, and the engagement of the other of such ways by the contact-plugs produces the movementof the motor-frame in the opposite direction.

While in practice'the segment occupied by v the series of contact-plugs 36 is such that the motion of the motor-frame, in one direction is arrested'immeuiately at the end of their engagement with one of the ways and at the beginning of the engagement of the opposite way, in order to insure against overthrowoi.

the motor-frame, the base of the yoke 7 is formed with transverse shoulders 41 and the motor-frame is provided adjacent the lower bearing center with a depending pin ii.) Whose engagement with the stop-shoulders 4i designed to insure against such overthrow.

Having thus set forth the nature of the invention, what we claim hereinis 1- 1. In an electric fan, incombination, a motor-frame having a lateral b62t1l11gl)OSS, a standard upon which said motord'rame is pivotally mounted provided with a way adjacent said bearing-boss, a motor comprising an armature-shait, a circularly moving .actu-.

ating member mounted ,upon said bearing boss, operative connections between the armature-shaft and said actuating member for imparting circular movements to the latter, and a segmental series of independently mounted and s pring-pressed frictional con tact points carried by said actuating member and adapted to successively and intermittingly engage said way upon the standard.

2. In an electric fan, in combination, a motor-frame having a bearing-boss, a stand ard upon which said motor-frame is pivotally mounted provided with spaced parallel ways embracing said bearing boss, a motor comprising an armature-shaft, a rotary actuating member mounted upon said bearing fitted to said radial sockets in the rotary sleeve and provided in their projecting outer ends with yielding caps or facings, springs interposed between the bottoms of said socketsand the contained plugs, and stops for limiting the outward movement of said plugs under the action of said springs.

4. In an electric fan, in combination, a motor-frame, an armature-shaft ournaled therein, a standard upon which said motorframe is pivotally mount ed provided with s aced parallel ways embracing said motor shaft, a rotary sleeve journalod upon the motor-frame intermediate said w ys and provided with a series of radial sockets, operative connections between the motor-shaft and said actuating membercontact-blocks fitted to said radial soclcets'in the rotary sleeve and provided with cavities in their outer ends, wearing blocks of yielding material having reduced portions inserted within the cavities in said contact-plugs, springs interposed between the bottoms of said sockets and the contained plugs, and stops I, for limiting the outward mo vemen t of said plugs under the action of said springs. I 5. In an electric fan, in combination, a

motor-frame, an armature-shaft journaled therein, a standard upon which saidmotorframe is pivotally mounted provided with spaced parallel ways embracing said motors aft, a rotary sleeve'journaled upon the motor-frame intermediate said ways and provided with a series of radial sockets, operative connections btween the motor-shaft and said movement under the action of said-spring.

6. In an electric fan, in combination, a

motor-frame, an armature-shaft journaled therein, a standard upon which said motorframe is pivotally mounted proyided with-a wa-y adjacent sald'motor-shaft, andhaving stop-shoulders upon opposite sides of the pivotal support of said motor-frame, a stopmember carried by said motorframe and movable therewith in a path Within which said stop-shoulders of-' the standard are disosed, a circularlymoving actuating-mem- Ber mounted upon said bearing boss, opera tiveconnections between the armature shai't and said actuating member for impartingcircular movements to the latter, and a segmental series of ind L pen-dentlymounted contact-plugs carried by said actuating member and adapted to successively engage said way upon the standard with which rolling contact is thus established. In testimonyywhereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

FREDERICK DIEHL.

ADOIJPH F. BECKER.

Witnesses:

H. A. KORNEMANN,

' JosEPH 51*. J AQUITH.

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