US2112766A - Fan - Google Patents

Description

March 29, 1938. w FELTNER 2,112,766

FAN

Filed April 7', 1957 ATTORN EYS Patented Mar. 29, 1938 2,1'1`f?f,76(lv FAN Walter Feltner, San Marcos, Tex.

Application April 7, 1937, Serial No. 135,553

2 Claims.

My invention relates to the circulation of air and includes among its objects and advantages the provision of an improved fan.

In the accompanying drawing:

Fig. 1 is an elevational view showing the fan suspended from the ceiling;

Fig. 2 is an end view of the fan illustrated in Fig. 1;

Fig. 3 is a sectional view along the line 3-3 of Fig. 2;

Fig. 4 is a sectional View along the line 4-4 of Fig. 3;

Fig. 5 is a sectional View along the line 5-5 of Fig. 3;

Fig. 6 is a bottom plan view of the motor illustrating the oscillating linkage; and

Fig. '7 is a sectional View along the line 1-1 of Fig. 4.

In the embodiment selected to illustrate my invention I make use of an electric motor I0 which may be suspended from the ceiling I2 by.

a hanger I4 anchored to the ceiling by bolts I6. A fan unit I8 is connected with each end of the motor I0, which units are identical in construction so that the description of one will cover both. The only difference resides in the angularity of the blades of the fans whereby the air is propelled in opposite directions.

Fig. 3 illustrates one end of the motor I0 in which the eld frame 20 includes an end cap 22 which has intertting relation with the frame at 24. Bolts 26 connect the cap with the frame. The armature 28 includes a power shaft 30 at each end, and the shafts are rotatably supported within bearings 32 carried by they cap 22. The fan units I8 are connected with the shafts 30.

Referring again to Fig. 3, the bearing 32 terminates in a yoke 34 which vsupports a ring 36 L-shaped in cross section. Screws 38 have threaded relation with the yoke 34 and include shafts 40 rotatably mounted in openings in the flanges 42 of the ring 36. The screws 38 are arranged in axial alignment with their axes corresponding to the axis of the ring 36. Within the ring 36 I mount a ring 44. A roller bearing assembly 46 is mounted between the flange 48 of the ring 44 and the flange 42 of the ring 36. The bearing assembly is pressed onto the flange 48 while set screws 50 having threaded relation with the iiange 42 secure the bearing assembly in the position illustrated.

The shaft 30 has a slot 52 extending inwardly of its end within which slot I position a bar 54 which has its ends anchored in the openings 56 in the ange 48. Because of the bar 54, rotation of the shaft 30 will impart rotary motion to the ring 44, to the flange 58 of which I connect the blades 60.

To the ring 36 I connect a lug 62. A link 64 is pivotally connected at 66 with the lug 62 and lies against a web 68 cast as an integral part of the cap 22. A slot is formed in the link 64, and the web 68 carries a wing nut 12 arranged to clampthe link against the web. 'Ihe cap 22 may be provided with an opening 14 through which one end of the link 64 passes. 'Ihe axis of the bar 54 is positioned at right angles to the axes of the screws 38 so that the fan unit I8 may be tilted to different angles with respect tothe motor shaft 30 about the axes of the screws 38.

By tightening the nut 12, the link 64 may be clamped in xed relation with the web 68 to support the fan unit I8 in various angular adjustments. The slot 52 is of such length as to accommodate angular adjustment of the bar 54. Fig. 1 illustrates one of the fan units I8 as being shifted to an angular position.

The hanger I4 is of tubular construction to accommodate the wires 16 for the motor I0, and the lower end of the hanger carries a ring 18 which encircles the motor I0 and is pivotally connected therewith through the medium of a bolt 80 passing through an opening .82 in the ring 18 and threaded into the boss 84 formed on the motor.

Shaft 30 carries a worm 86 arranged in mesh with a worm gear 88 flXedly connected with a shaft 90 rotatably mounted in a bearing 92 .cast integrally with one of the caps 22. To the lower end of the shaft 90 I xedly connect a plate 94 which, in turn, is pivotally connected at 96 with a link 88 having its opposite end pivotally connected at |00 with a. short arm |82 lixedly connected with the ring 18. It will thus be seen that rotary motion of the shaft 30 imparts oscillatory movement to the motor I0. The ring 18 is of suiicient diameter to accommodate oscillatory movement of the motor.

A wire guard |04 may enclose each of the fan units I8. In Figs. 2 and 7, I illustrate the ring 36 as being provided with arms I06 attached to the ring 36 by screws |08 for supporting the wire guard |04. The fan blades 60 are riveted to the flange 58 of the ring 44 at IIO.

The invention embodies two fan units in combination with a single motor, which fan units propel air in opposite directions. The fan units are directly connected with the motor shaft, and

, the connections are so constructed and arranged as to permit adjustment with the fan units to different angles. Disconnection of the link 98 converts the rotary fan to one oi the stationary type.

Without further elaboration, the foregoing will so fully explain my invention that others may, by applying current knowledge, readily adapty the same for use under various conditions of service.

I claim:

1. 'Ihe combination of a motor including a power shaft, a support, a fan rotatably mounted on said support and arranged forpivotal movement about an axis at right angles to the power shaft, a bar connected with the fan and operatively connected with the power shaft to rotate the fan, said bar being movably related to the power shaft, and means for pivoting the fan about said axis and securing the same in different positions.

2. The combination of a motor including a power shaft, a support, a fan rotatably mounted on said support, said fan being movably connected with the support for pivotal movement about an axis transversely of the power shaft, said power shaft having a slot, a bar connected with the fan at right angles to said axis and lying within said slot, and means for securing? the fan in different angular positions when pivoted about said` axis.

WALTER FELTNER.

Images