US952468A

US952468A - Oscillating fan.

Info

Publication number: US952468A
Application number: US48056809A
Authority: US
Inventors: Adolph Rubin
Original assignee: JOHN B GURY
Current assignee: JOHN B GURY
Priority date: 1909-03-01
Filing date: 1909-03-01
Publication date: 1910-03-22
Anticipated expiration: 1927-03-22

Description

A. RUBIN! OSGILLATING PAN. APPLIOATION FILED MAR. 1, 1909.

Patented Mar. 22, 1910.

2 SHEETS-SHEET 1.

' A, RUBIN.

OSGILLATING FAN.

APPLICATION FILED MAR.1, 1909. 952 458 Patented Mar. 22, 1910.

2 SHEETS-SHEET 2.

UTTTD STATES FATFNT @FFlfClit ADOIiPI-I` RUBIN, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO JOI-IN B. GURY, OF ST. LOUIS, MISSOURI.

OSCILLATING FAN.

aaaacs.

To all whom it may concern:

Be it known that I, ADoLPn RUBIN, a citizen of the United States, and a resident of the city of St. Louis and State of Missouri, have invented a certain new and useful Improvement in Oscillating Fans, of which the following is a specification.

This invention relates to oscillatory fans and more particularly to oscillating devices for rotary electric fans.

It has for its principal objects to secure simplicity of construction and ease of operation, to provide for the use of an oscillating` device without materially decreasing the full effect of the blast from the fan, to facilitate the attachment of the device to fans of any ordinary construction, and to attain certain other advantages hereinafter more fully appearing.

The invention consists in the parts and in the arraiigements and combinations of parts hereinafter described and claimed.

In the accompanying drawings, forming part of this specification, and wherein like symbols refer' to like parts wherever they occur, Figure 1 is a front elevation of an electric fan equipped with an oscillating device embodying my invention; Fig. 2 is a side elevation of the same; Fig. 3 is an enlarged detail view showing a detachable support for the fan-shifting vane, with said vane removed to expose the shock-actuated escapement device; Fig. 4f is a view partly in elevation and partly in section on or about the line 1 -4 of Fig. 3, of the support with the fan-shifting vane in place; Fig. 5

is a detail perspective view of the weighted shifting lever for the escapement device; Fig. G is a detail perspective view of the reciprocatory latch member of the escapement device; Fig. V7 is a top edge view of the fanshifting vane and support therefor; Fig. S is a plan view of a stop-plate forming part of the reversing means for the escapement device; and, Fig. 9 is a view partly in elevation and partly in section showing a portion of a swiveled carrier for the fan motor casing and also showing the cooperative relation of the reversing stops.

In the drawings an ordinary electric fan is illustrated. It comprises a rotary fan of Specicaton of Letters Patent.

Application led March 1, 1909.

' th ere from.

Patented Mar. 22, 1910.

Serial No. 480,568.

angularly set blades 1 which are mounted on the end portion of a shaft 2. This shaft is the armature shaft of an ordinary electric motor (not shown in detail) which is mounted in a suitable casing or housing 3. The motor casing 3 is preferably hingedly supported or swiveled in a yoke t so that the fan may be tilted to different angles for obvious reasons. This yoke 4; is swiveled on a stand or base 5. Preferably, the yoke is provided with a depending stud G which is journaled in a central opening in the top of the stand or base 5. In some cases, a series of balls 7 or other suitable antifriction bearings may be provided for the yoke, and the parts may be secured by a nut and washer S, 9 respectively.

Fixedly mounted on the stand or base is a circular plate or disk 10. This plate or disk is provided with two' oppositely disposed arcuat-e slots 11 in which arc slidably fitted studs or stops 12. Preferably, these studs are provided with collars or heads 13 on their lower ends and their upper portions are slightly reduced and screw-threaded to receive cylindrical sleeves or locking nuts 14 which are internally screw-threaded to engage the threads of the studs. These locking members 14C are preferably provided with knurled knob portions 15 to facilitate the tightening of the studs in their adjusted positions on the disk l0, or said members may be provided with portions adapted to coperate with a suitable wrench.

On the swiveled yoke 4c is a lateral pro jection or stud 16 which is arranged to contact with said stops or studs 12 which limit the movement of the yoke. Obviously, therefore, by changing the positions of the stops 12 the angle of movement of the yoke and the effective range of the fan may be varied.

The means for shifting or oscillating the fan comprises an intermittently movable vane or resisting element 17 which is rotatably mounted closely in front of the fan blades so as to receive the force of the blast Preferably, the vane 17 is mounted on a support 18 which may be conveniently secured to the usual wire guard frame surrounding the fan blades. The sup 'of the supporting f"'am'e 18.

port illustrated in the drawings comprises a circular frame having peripheral lugs 1S) which are grooved on their back faces so as to fit upon the central circular member 20 of the Wire guard frame 21. This guard frame is provided with bent arms 22 which are secured by screws 23 to the motor casing 3.

The circular supporting frame 18 is provided with a central hub portion 24 which is connected thereto by radial members 25. In the center of the portion 211 is a screwthreaded hole 2G in which is secured a shouldered stud 27 upon which the vane 17 is pivo'ted. Preferably, the vane comprises a blade which is secured to or integral with a stem or shank portion 28 which is perforated for the passage of the pivot stud therethrough. The vane is provided with a counter-balancing, weighted member 29 which may be screwed or otherwise secured to the stem or shank 28. This weighted member is arranged so as to just counterbalance the weight of the blade 17, and said blade 17 is set at a slight angle so that the blast will cause the vane to rotate in one direction when it is not held or locked, and yet offer suflicient resistance when locked to cause the fan to turn with its swiveled snpporting yoke 11 unt-il arrested when the projection or stud 1G contacts with a stop 12.

Preferably, the journal for the vane 17 is provided in the thickened weighted member 29 and the hole is recessed or counterbored to receive an antifriction ball bearing washer 30 which is loosely fitted therein so as to coperate with the bottom of said rcces's and the flanged head portion of the fpivo't stud.

The shifting device or vane 17 is intermittently arrested or locked against rotation by a horizontal, reciprocatory latch member 31 having

angular end extensions

32, 33, which are slidabl'y fitted in slots 311 on opposite sides of the cential portion 2-1 Projecting rearwardly from the middle of the latch member 31 is a stud or pin 35 which loosely fits in an elongated opening or slot 36 in a weighted lever 37. This lever is pivoted at its lower end on a stud 38 which is secured tothe lower portion of the circular frame 18. Preferably, the upper end portion of the lever 37 is bent forwardly and upwardly as at 39 so as to bear against the front face of the upper portion of said circular frame 18 in order to guide the upper end of the lever when it is rocked. This lever 37 is provided with two oppositely disposed lateral wings or extensions 40 which afford an extended bearing for the back face of the latch member 31. The weight 41 which is secured to the rear face of the lever at the upper portion thereof projects beyond either side of said lever.

The weight is widest at` its upper portion and its top side is preferably arcuate while its sides are undercut or tapered. By this arrangement of weighted lever, the lever may be releasaloly held to either side of a vertical center line. That is, when the lever is moved just beyond the vertical position, the weight will quickly throw and hold the lever to that side. By limiting the inclined position of the lever to a slight distance either side of the vertical, the weight may be overcome by a shock or jar, whereby the lever may be thrown over to the opposite side in a manner hereinafter more fully set forth. j

In practice, the slots 3e and the

projections

32, 33 on the latch member 31 are so proportioned that, when the lever is moved to either side of a vertical center line the latch projection on that side will extend a short distance beyond the edge of the hub portion 24 of the supporting' frame, while the opposite latch projection is retracted entirely within its slot whose inner end wall forms a stop therefor.

Mounted on the shank 28 of the fanshifting vane is a stop member L12 which is curved and arranged to travel ina circular direction slightly beyond the periphery of the hub portion 24 of the supporting frame 18. The edge of this stop is adapted to contact with the respective latch portions 32, when projected into its path and thereby arrest and hold the vane from rotation on its pivot stud. Preferably, the vane-stopping devices are so arranged that the vane is arrested at each half revolution thereof so that its blade will be brouglit. to rest at opposite sides of the fan on a horizontal line.

In operation, assuming that the fan blades are in Imotion and the vane is at rest, for eXample,as in Figs. 1 and 2 of the drawings. The air blast directed against the vane will cause the swiveled fan to turn on its base in a direction backward from said vane on that side. The fan will turn with considerable momentlnn due to the resistance offered by the vane blade to the blast from the rapidly revolving fan blades until the stop 16 comes violently in contact with the stop member 14, whereupon the shock will cause the weighted lever 37 to throw over to the opposite side of the vertical center line and lthereby retract the projecting latch portion 33 and project the opposite 'portion 32. When the latch member 33 is withdrawn from contact with the vane stop member 112, the vane will be rotated on its pivot stud 27 due to the inclination of the blade to the direction of the blast thereagainst. During this rotation of the vane the fan stands momentarily in its shifted position until the vane is arrested at the opposite side of the fan bythe projecting latch llO member 32. Vhen the vane comes to rest in this position, the fan will be shifted toward the opposite side until the stop 16 comes in contact with the stop member 14 on that side, whereupon, the position of the weighted shifting lever 3T is reversed, thereby retracting the latch portion 32 and projecting the opposite portion 33. In this manner, the fan is intermittently shifted or oscillated on its stand or base. So, too, the fan may be tilted to various angles in its supporting yoke and yet the oscillating mechanism will still be effective.

To insure the actuation of the latch or escapement device, it is preferable to bevel the ends of the latch member as at 43 substantially as shown, so that, when the weighted lever 37 is thrown, by the impact of the stud 1G against a stop member 111, far enough to withdraw the projecting upper flat face portion of the latch member from contact with the end of the curved eX- tension of the stop 42 on the vane, said end will ride over the beveled end of the latch member. The lever 3T will thereby be forced past the vertical center line and said curved stop extension will hold the parts from reacting` before they are moved to effective position.

Obviously, instead of having the resisting element or vane rotate intermittently in one direction, the device may be modified so that said resisting` element will oscillate to and fro intermittently on its pivot. The device admits of further modification without departing from my invention, and, therefore, 1 do not wish to be limited to the specific construction and arrangement shown.

That I claim is:

1. An oscillatory fan comprising a. support, a fan vertically swiveled on said support, said fan comprising a transverselyjournaled rotary fan wheel, a rotatable resisting element mounted adjacent to said fan wheel in the path of the blast therefrom, said resisting element comprising a vane which is journaled centrally of said fan wheel and whose blade is set at a slight angle to the direction of the blast, whereby the normal tendency of said vane is to rotate under the force of the blast when free, a device for arresting and holding said vane with its blade alternately at opposite sides of the pivot of said fan, whereby said fan is caused to turn on its support alternately in opposite directions, stops arranged to limit the movement of said fan on its support, and means for automatically disengaging said arresting and holding device from said vane when the fan reaches the limit of its movement on its support in either direction.

2. An oscillatory fan comprising a support, a fan swiveled thereon, stops for limiting the movement of said fan on its support, an intermittently movable resisting element rotatably mounted on said fan in the path of the blast therefrom, a shockactuated device mounted on said fan and adapted to arrest and hold said rotatable resisting element alternately at opposite sides of the pivot of said fan, whereby said fan is caused to turn on its support alternately in opposite directions, and said arresting and holding device being arranged to be actuated by the impact when the fan is arrested at the limit of its movement in either direction.

3. An oscillatory fan comprising a support, a fan swiveled thereon, stops arranged to limit the movement of said fan on its support, an intermittently movable resisting element rotatably mounted on a support which is fixed with respect to said fan in the path of the blast therefrom, a reciprocatory latch member arranged to arrest and hold said rotatable resisting element alternately at opposite sides of the pivot of said fan, whereby said fan is caused to turn on its support alternately in opposite directions, and means for actuating said latch member when the fan has reached the limit of its movement on its support in either dircction.

1. An oscillatory fan comprising a support, a fan swiveled thereon, adjustable stops for limiting and varying the angle of movement of said fan on its support, an intermittently movable resisting element rotatably mounted on said fan in the path of the blast therefrom, a device for arresting and holding said rotatable resisting element alternately at opposite sides of the pivot of said fan, whereby said fan is caused to turn on its supports alternately in opposite directions, and means for actuating said arresting and holding device by the impact when the fan is arrested at the limit of its movement on its support in either direction.

5. An oscillatory fan comprising a support, a fan swiveled vertically thereon, said fan having a transversely journaled fan wheel, an intermittently movable resisting element rotatably mounted adjacent to said fan wheel in the path of the bla st therefrom, said resisting element comprising a support fixed centrally with respect to said fan, a vane revolubly mounted on said support and having its blade inclined slightly to the direction of the blast, whereby the normal tendency of said vane is to revolve on its pivot in one direction, a horizontally movable latch member arranged to arrest and hold said revoluble vane alternately on opposite sides of the pivot of said fan, whereby said fan is caused to turn on its support alternately in opposite directions, and a weighted oscillatory lever operatively c011- to this specification in the presence of two necteol to said horizontally movable latch member and arranged to be actuated to move said latch member by the impact when Said fan is arrested at the limit of its moie ment on its support in either direction.

In Witness whereof I have signed my name subscribing Witnesses this 27 th clay of February7 1909.

ADOLPH RUBN. lVitnesses G. A. PENNINGTON, W'M. P. CARR.