US1879150A - Rotating device for fans - Google Patents

Description

P 1932- J. R. FERGUSON ROTATING DEVICE FOR FANS Filed July 8, 1929 IN VEN TOR.

A TTORNEYS.

I Patented Sept. 27, 1932 JAMES B. rnneuson, or pALLAs, TEXAS, AssINOaoronE-mmr row. n. mm-

TON, or DALLAS, TEXAS ROTATING DEVICE FOR FANS I Application filed July 8, 1929. "semi 30. 376,575.

This invention relates to electric fans and it has particular reference to fans for desk and table use and the principal object of the invention resides in the provision of a fan of the character wherein is provided mechanism so designed and arranged as to cause said fan to rotate on its base, to produce the maximum of air circulation.

Another object of the invention is to provide, in fan rotating mechanism as set forth, a novel control by whlch the fan 1s caused to cease rotating, without afiecting the action I atblto rotatably receiveajset screw 6. The

of the fan proper as concerns its speed.

The invention further comprehends the provision of mechanism calculated to bring about the results mentioned, which may be effectively applied as an attachment to the conventional oscillating or stationary type of fans with only minor alterations in the structure thereof, which will enable said fans to make complete revolutions, to increase their effectiveness in bringing about maximum air circulation.

With these objects as paramount, the invention has particular reference to its salient features of construction and arrangement of parts, to be hereinafter explained 'in detail and illustrated in the accompanying drawing wherein Figure 1 is a side elevational view of an electric fan embodying the invention.

Figure 2 is a rear elevational view ofthe invention.

FigureB is a bottom View of the invention.

Figure 4 is a bottom view of the invention showing a modification of the driving mechanism.

Figure 5 is an elevational view of the modification exemplified in Figure 4 having a portion of the base cut' away to illustrate the preferred type of contact, and

Figure 6 is a fragmentary cross section of the rotating axis showing the preferred type of contact.

While the ordinary fan of the type menioned may be caused to oscillate and circulate the air overa given area, no provision has heretofore been made, as an "attachmentfor the ordinary fan, to enable itto circulate the air in all directions, It is the purpose, therefore, of this invention to provlde' a means whereby this may be accomplished. a Accordingly, therefore, the invention comprises a, base member 1, having a slot a adjacent thetop-thereof to receive the flattened,

portionof a: cup shaped member 2 within].

which is threaded. a sleeve 3 the latter being.

integral with 4. a flanged wheel 4: which. .is

vrigidlymounted-on a hollow stub shaft 5,

the latter being shown in detail in Figure 6. The shaft 5 is circumferentially grooved sleeve 7 being rigidly attached to the fan as shown in Figure 6.

Extending vertically through, the hollow flanged wheel 4:,

shaft 5, an insulated core .9 conducts the cur-' rent from the wires IO'in-the base 1 into the motor 8'by means. of the armature 11 which slidably engage the lowerfend of the core 9 in the groove'oto make a continuous contact at d and e while'the motor8 revolves.

- The motor 8 is providedjwith, a shaft 12 on one end of which the fan 13 is mounted while on the other end a series of gears of'a conventional nature are mounted, the'} latter being encased in the gear box 12 at the rear of the motor v8. Bytransverse arrangement of gears, the vertical shaft 15 is drivento rotate the flanged wheel 16 which rigidly engages the shaft 15 when the friction clutch. 17 is operated upward by turning the knurled washer 18. A cam 19 is also mounted. on the shaft 15 to freely rotate thereon until the friction clutch '17 is operated downward by the knurled washer 18 to engage the face of the cam 19 to cause the latter to rotate with the shaft 15. Aconnecting; arm 20 is eccentrically pivoted to the cam 19 by means of a small boltfor pin 21. At the outer edge of I the cam 19, the other'end of the connection 20 being attached to a projection 22 ofa ring 7 23 surroundingthe threaded sleeve 22. A

set screw 24, having a knurledhead, is p r0' vided to secure the ring .23 to thethreaded sleeve 3 when desirable, as shown in detail in A Figure 6. A belt 25 is provided to surround the flange wheels 4 and 16, as shown in Figures 1, 2 and 3.

Figures 4 and 5 illustrate the invention in modified formwhich is comprised of a gear 26 mounted integrally with the sleeve 3 and remains stationary with the base 1 when the motor 8 rotatest An intermediate gear '27 is mounted on a stub shaft 28 to engage the gear 26 and agear 29 which is mounted on the shaft 15. This arrangement maybe used in place of the flanged wheels 4 and 16 with the same results, if desired.

In operation, the current being turned on,

J AMES R. FERGUSON,

passes through the wire 10 in the base 1,

through the armatures 11 into the insulated core 9 and thence to the motor 8. to set the latter; into motion.

As the shaft 12 revolves, the vertical shaft 15 is driven by the gears in the gear box 14 to actuate the flanged wheel 16 around which the belt travels. The flanged wheel 4, be- 3 ing stationary, the belt 25 passes around the latter with the result that the flanged Wheel 16 propels the fan in a circular motion.

7 When only an oscillating movement is desired, the knurled washer 18 is urged downward until the clutch 17 engages the cam 19 which sets the pitman 20 inmotion causing the fan to move in a semi-circle from left to right. v

' It will be noted that before the fan will rotate in a complete circle, the set screw 24 must be loosened to allow the ring 23 to move Obviously, the construction shown is capable of considerable modification and such modification asisconsidered within the scope freely around the-sleeve 3, and to obtain an oscillating movement, the'ring 23 must besecured to the sleeve 3 by the set screw 24.

and meaning of the appended claims without departing from the'spirit 'and' intent of the V invention.

What is claimed isi 1. In an electric fan, the combination with the spindle shaft thereof having a gear thereon, a shaft at right angles and having operative engagement with and to' be'rotated by said first shaft, a grooved pulley attached to said second shaft,'a stationary base member pivotally supporting said fan, a stationary grooved pulley on said base member, a flexible belt surroundingsaidpulley, a frictional member also carried by saidsecond shaft and capable of movement thereon and means for moving sald frictional member against and away fromsaid first mentioned pulley to efiect the movements of said fan,

2111i an electric fan, the combination with I a motor and spindle shaft of said fan, a sec- 0nd shaft operated by said spindle shaft in a planefat right angles to said latter shaft, a

grooved pulley mounted on s aid second shaft,

a disc also mounted on said second shaft, a

stationary base for said motor having a

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