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Патент USA US2112766

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March 29, 1938.
Filed April 7', 1957
Patented Mar. 29, 1938
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 illus
trating the oscillating linkage; and
(0l. 230-259)
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 10 is formed in the link 64,
and the web 68 carries a wing nut 12 arranged
to clamp- the link against the web. 'I‘he cap 22
may be provided with an opening 14 through 10
which one end of the link 64 passes. 'I‘he 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 to- the
motor shaft 30 about the axes of the screws 38. 15
By tightening the nut 12, the link 64 may be
clamped in ñxed relation with the web» 68 to sup
port the fan unit I8 in various angular adjust
Fig. 4.
In the embodiment selected to illustrate my ments. The slot 52 is of such length as to ac
commodate angular adjustment of the bar 54.
2 O invention I make use of an electric motor I0
which may be suspended from the ceiling I2 by. Fig. 1 illustrates one of the fan units I8 as being
a hanger I4 anchored to the ceiling by bolts I6. shifted to an angular position.
The hanger I4 is of tubular construction to ac
A fan unit I8 is connected with each end of the
commodate the wires 16 for the motor I0, and the
motor I0, which units are identical in construc
tion so that the description of one will cover lower end of the hanger carries a ring 18 which 25
encircles the motor I0 and is pivotally connected
both. The only difference resides in the angu
larity of the blades of the fans whereby the air therewith through the medium of a bolt 80 pass
ing through an opening .82 in the ring 18 and
is propelled in opposite directions.
Fig. 3 illustrates one end of the motor I0 in threaded into the boss 84 formed on the motor.
Shaft 30 carries a worm 86 arranged in mesh 30
which the ñeld frame 20 includes an end cap 22
which has interñtting relation with the frame at with a worm gear 88 flXedly connected with a
24. Bolts 26 connect the cap with the frame. shaft 90 rotatably mounted in a bearing 92 .cast
The armature 28 includes a power shaft 30 at integrally with one of the caps 22. To the lower
each end, and the shafts are rotatably supported end of the shaft 90 I ñxedly connect a plate 94
bearings 32 carried by they cap 22. The which, in turn, is pivotally connected at 96 with
a link 88 having its opposite end pivotally con
fan units I8 are connected with the shafts 30.
Referring again to Fig. 3, the bearing 32 ter-_ nected at |00 with a. short arm |82 lixedly con
minates in a yoke 34 which vsupports a ring 36 nected with the ring 18. It will thus be seen that
L-shaped in cross section. Screws 38 have rotary motion of the shaft 30 imparts oscillatory
40 threaded relation with the yoke 34 and include movement to the motor I0. The ring 18 is of 40
shafts 40 rotatably mounted in openings in the suiìicient diameter to accommodate oscillatory
movement of the motor.
flanges 42 of the ring 36. The screws 38 are ar
A wire guard |04 may enclose each of the fan
ranged in axial alignment with their axes cor
responding to the axis of the ring 36. Within the units I8. In Figs. 2 and 7, I illustrate the ring
36 as being provided with arms I06 attached to 45
ring 36 I mount a ring 44. A roller bearing as
sembly 46 is mounted between the flange 48 of the ring 36 by screws |08 for supporting the wire
the ring 44 and the flange 42 of the ring 36. The guard |04. The fan blades 60 are riveted to» the
bearing assembly is pressed onto the flange 48 flange 58 of the ring 44 at IIO.
The invention embodies two fan units in com
while set screws 50 having threaded relation with
bination with a single motor, which fan units 50
50 the iiange 42 secure the bearing assembly in the
propel air in opposite directions. The fan units
position illustrated.
The shaft 30 has a slot 52 extending inwardly are directly connected with the motor shaft, and
of its end within which slot I position a bar 54 , the connections are so constructed and arranged
which has its ends anchored in the openings 56 as to permit adjustment with the fan units to
55 in the ñange 48. Because of the bar 54, rotation different angles. Disconnection of the link 98 55
Fig. '7 is a sectional View along the line 1-1 of
converts the rotary fan to one oi’ the stationary
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. 'I‘he combination of a motor including a
power shaft, a support, a fan rotatably mounted
10 on said support and arranged forpivotal move
power shaft, and means for pivoting the fan
about said axis and securing the same in differ
ent positions.
2. The combination of a motor including a
power shaft, a support, a fan rotatably mounted
on said support, said fan being movably connect
ed 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 10
ment about an axis at right angles to the power
shaft, a bar connected with the fan and opera
within said slot, and means for securing? the fan
tively connected with the power shaft to rotate
said` axis.
the fan, said bar being movably related to the
in different angular positions when pivoted about
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