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Патент USA US2128724

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Aug. 3o, 1938. `
l
@_ ZINT
2,128,724
ELECTRIC FAN
Filed Jan. 28, 1938 v
Fig.1.
v4 Sheets-Sheet l
Aug. 30, 1938.
~
G. ZINT
2,128,724v
ELEGTRIÖ FAN`
'
Filed Jan. 28, 1933
y4 Sheets-sheet 2
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Auèf 30, 1938vo
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G. zlNT
ELECTRIC
2,128,724
FAN
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Filed Jan. 28, 1938
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4 Sheets-Sher#I 5
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WITNESS’
Aug. 3o, 1938.
G. ZINT
2,128,724 '
ELECTRIC FAN
Filed Jan. 28, 1938 '
Fig. 62
. WITNESS
4 ì sheets-sheet 4
2,128,724
Patented Aug. 30, 1938
TJNITEDA STATES
PATENT orties ^
2,128,724'>
Y ELEc'mIo FAN
George Zint, Wapakoneta, `Ohio
`
Application January 28, 1938, Serial No. 187,489
(o1. 23o-256)
12 Claims.
The principal object of the present invention
is to provide, a new and improved electric fan
of the oscillating type, including novel provision
whereby the extent of oscillation of the fan may
be varied as desired.
.
Another object is to provide for swinging the
fan~carrying and driving motor to any of vari
ous positions to direct the blasts of air in the-most
desirable directions, the provision for thus -ad
i0 justing the fan being of such nature that the
adjustment may be quickly and easily performed
without hazard, while the fan is in operation.
A still further object is to provide a construc
tion of comparatively simple and inexpensive na
ture, yet one which will be efficient and desirable.
y With the foregoing in view, the invention re
sides in the novel _subject matter hereinafter
described and claimed, description being accom
plished by reference to the accompanying draw
20
ings.y
'
`
Figure 1 is a side elevation partly in section.
Figure 2 is a rear elevation partly in section.
Figure 3 is an elevation of the side opposite
that shown in Fig. 1, partly in section.
2 Ul
Figure 4 is a horizontal sectional view on line
t-Ii of Fig. 2.
'
Figure 5 is V_a fragmentary disassembled per
spective View.
`
Figure 6 is a detail vertical section on line 6-6
, 30 of Fig. 2.
3
In thedrawings above briefly described, a con
struction has been illustrated for readily attain
ing the desired ends, and while this construction
may be considered as preferred, it is to be under
stood that numerous variations maybe made
l within the scope of the invention'as claimed.
` A hollow base i0 is provided, rigidly connected
by screw threads orv otherwise, with a central
tubular standard II, and a large worm wheel I2
is secured to the upper end of this standard.
Preferably, the standard II is provided with an
upward extension I 3 passing through the worm
wheel I2, the upper end of said extension being
provided with a head I3’ which clamps said worm
¿5 wheel solidly to the standard II. Suitably sup
ported within the standard Il is a thrust bear
ing I4 upon which a vtubular trunnion I5 rests,
the upper end of said trunnion being provided
with an integral head or cap I6 which overlies
50 and encloses the head I3’. Integral with this
head or cap I5 is a plate-like portion I‘I of a
carrier I8, which carrier is preferably a one
piece casting embodying two verticalside mem
bers I9 and 2€), a cowl-like casing portion 2| inte
55 grally connected with said side members and
with the plate portion Il, two upstanding` lugs or
arms 22 and 23 between said side members I9 and
20, and a cylindrical stub 24 projecting laterally
outward from the upper end of the side member
I9.
'
5
A bracket 25 carrying the driving motor 26 for
the fan 21, is formed with an opening 28 into
which the stub 24 projects to pivotally mount
said bracket and thus allow upward or down
ward arcuate adjustment of the motor and fan lo
to direct the air blast in any desired direction
with regard to the horizontal. The bracket 25
isformed with another opening 29 at right angles
to the axis of the opening 28. In the inner end
of this opening 29, there is a friction shoe 3l) l5
contacting with-the periphery of the stub 24. A
coiled compression spring 3l abuts the outerend
of the shoe 3l), and a clamping screw 32 is
threaded in the outer end of said opening ‘_'9
in abutting relation with the outer end of said go
spring. - The screw 32 is provided with a hand
grip 33l which is preferably of sufficient weight
to at least partially counterbalance the weight
of the motor 26. When the screw 32 is sufli
ciently tightened, spring 3| forces shoe 3i) against 25 `
the stub 24 with such force as to frictionally
clamp the bracket 25 to said stub, holding said
bracket in any position to which it may have been
adjusted. The hand grip 33 serves not only as
means vfor quickly and easily loosening the screw 3@
32, but it further acts as a handle for vertically
swinging the bracket 25 upon the stub 24. It is
thus an easy matter to so adjust the fan as to
direct the air upwardly, downwardly or hori
zontally. 'By grasping the hand grip» 33 in one 35
hand, turning said hand grip slightly to release
the screw 32, swinging said hand grip upwardly
or downwardly, and then turning it to tighten
the screw 32, the desired adjustment- may be
conveniently made.
. 40
.A shaft 35 passes through bearing openings 35
inthe side members I9 and 20 of the carrier I8
and isprovided at one end with a worm 3l meshing withthe >worm gear I2. Above this shaft 35
is another shaft 38 rotatably mounted in bearing 45
openings 39 in the side members I9 and 2l).
Above the shaft 38 is a third shaft 4I) mounted in
bearing openings 4I in the side members I9 and
2G, these openings 4I being coaxial with the
cylindrical pivot stub 2li. Pinned or otherwise 50
secured to the shaft 40, is a worm wheel 42 mesh
ing with a worm 43 on the motor shaft 44.
Secured to the opposite end of the shaft all) is a
gear 45meshing with an idler 46 which in turn
meshes with anothergear 4l on oney end of the 55v
2
2,128,724
shaft 38, said gear 41 being meshed with a gear
48 which is loose on one end of the shaft 35.
Also loosely mounted on this shaft is another
gear 49 meshing with an idler 58, which idler
Ul meshes with a gear 5I on the shaft 38. A clutch
blades of one kind or another, nor to materials,
sleeve 52 is slidably splined or otherwise mounted
on the shaft 35 between the two gears 48 and 49,
'Ill extending between and over the side members
said clutch member serving to selectively connect
cured at 1I to the cowl portion 2| and at 12 to
one or the other of these gears with said shaft.
the lug or arm 22. An arched cover plate. 13 is
also shown for the worm wheel 42 and worm 43, 10
secured by screws 14 to the bracket25.
I claim:
l. An oscillating electric fan comprising a base,
a standard rising rigidly therefrom, a worm Wheel
~ secured to the end of said standard most remote
15
10 When gear 48 is connected with the shaft 35, the
worm 31 will,V be driven in one direction and
consequently the carrier I8 will move arcuately
in one direction with respect to the base and the
proportions, etc. Moreover, it will be obvious that
any desired encasing means may be employed for
any of the moving parts. In the present show
ing, most of the gearing is protected by a cover
I9 and 20 of the carrier I8, said cover being se
Worm wheel I2. When the clutch sleeve 52 con
nects the’other gear 48 with the shaft 35, hoWever, the worm 31 will be driven in the opposite . from the base, an oscillatory carrier mounted di
direction, causing reverse movement of said rectly adjacent said worm wheel, a fan-driving
carrier I8.
motor mounted on said carrier, a worm mounted
A reversing fork 53 is operatively connectedY on said carrier and >meshing with said worm
20 with the sleeve 52 and is secured upon a shaft
wheel, reversible gearing mounted on said car 20
54 rotatably mounted in bearings 55 in the lugs
rier and operatively connected with said motor
or arms 22 and 23, the outer end of said shaft
54 being providedwith a downwardly projecting
reversing arm 58 which is operable between two
25 trips 51.
When the arm 5B strikes one of these
trips 51, the movement of said arm operates the
fork 53 to slide the clutch sleeve 52 in one direc
tion, operatively connecting gear 48 with shaft
35. When arm 56 strikes the other of the trips
30 51, the movement of said arm causes the fork
53 to shift the clutch sleeve 52 in the opposite
direction, operatively connecting gear 49 with
shaft 35. Thus, the driving of the Worm 31kflrst
in one direction and then in the other to slowly
35 oscillate the carrier I1 and the parts carried
thereby, is attained. T'he two trips 51 are pref
erably relatively adjustable. In‘the present sho-w
ing, each of said trips is provided with a split
ring 58 at its inner end, the two rings of the
40 two trips being frictionally received in shallo-w
grooves 59 in the standard II. The trips 51
may thus be swung to any desired spaced rela
tion and the vfriction between the groove bottoms
and the rings 58, will hold said trips after ad
45 justment. Preferably, the standard II carries
a fixed pin 8 which prevents such setting of the
trip arms 51 as to allow complete rotation of the
carrier I1 with danger of injuring the current
conducting wires 6I which lead to the motor 26.
50 These wires pass from a switch 62 within the
base I8, upwardly through the tubular standard
I I, through the tubular trunnion I5, and through
an opening 63 in the head or cap I6, and from
this opening extend on to the motor 26.
It is preferable that the clutch sleeve 52 have
55
a snap-action in both directions. To insure this,
I preferably provide an upstanding arm 64 on
one end of the shaft 54 and provide a spring arm
65 of V-shape to coact with said arm 64 to snap
60 it in one direction or the other as soon as said
arm is pushed slightly past the crest of thev V.
In the present disclosure, the> arm 65 is provided
with a coil 66 surrounding a pin 61 on the carrier
I8, the end of said spring opposite the arm 65
65 being extended at 63 and secured to the carrier
by a screw 89.
»
-
» From the foregoingtaken in connection with
the accompanying drawings, it will be seen that
novel and advantageous provision has been made
70 for carrying out the objectsof the invention, and
While preferred features have been shown, atten
tion is again invited to the possibility of making
variations within the scope of the invention as
and said worm for driving the latter in either
direction, a reversing arm for said reversible
gearing mounted on said carrier, and ñxed trips
between which said arm is operable to cause re 25
versing of said reversible gearing when said car
rier has turned a predetermined distance in
either direction.
v2. An electric fan comprising a carrier mount
ed for rotation, a bracket pivotally mounted on 30
said carrier on an axis transverse to the axis of
rotation thereof, means for holding said bracket
after adjustment upon its pivot, a fan-driving
motor mounted on said bracket, and means for
rotating said carrier, including one gear mount 35
ed coaxially with the pivot of said bracket, and
a second gear meshing with said one gear and
secured to the motor shaft, the two gears re
maining in mesh during adjustment of said
bracket upon its pivot.
3. An electric fan comprising a base having a 40
ñxed worm wheel, a carrier rotatably mounted on
said base coaxially with said worm wheel, a gear
train mounted on said carrier and having a worm
wheel at one end and a worm at its other end,
the axis of said worm Wheel of said train being 45
transverse to the axis of rotation of said car
rier, said worm of said train being in mesn with
said ñxed worm wheel, a bracket pivotally
mounted on said carrier coaxially with said axis
of said worm Wheel of said train for `arcuate ad 50
justment, means for holding said bracket in ad
justed position, a fan-driving motor mounted
on said bracket, and a worm on the motor shaft
meshing with said worm Wheel of said train, this
worm and worm wheel remaining in mesh during 55
adjustment of said bracket upon its pivot.
4. An electric fan comprising a support, a
bracket pivotally mounted on said support for
arcuate adjustment, a fan-driving motor mount
ed on said bracket, and means for securing said 60
bracket inv adjusted position, said securing means
having a `hand grip rotatable slightly to release
said holding means and then operable as a han
dle for adjusting said bracket upon its pivot.
5. An electric fan comprising a support, a
bracket pivotally mounted on said support for
manual arcuate adjustment, a fan-driving motor
mounted on said bracket, the relation of said
motor with the pivot of said bracket being such
that said motor and bracket have a tendency to 70
Swing in one direction by gravity, and manually
operable means for holding said bracket after
claimed. Obviously, the invention is not restrict » manual adjustment thereof, said manually oper
ed to a motor of any particular type, to fan able means having a heavy operating handle posi- 75
2,128,724
' 3
tioned to at least partially counter-balance the
.tendency of the motor and bracket to swing in
worm wheel, a fan-driving motor mounted on said
carrier, a worm mounted on said carrier and
said one direcion.
meshing with said worm Wheel, reversible gearing
6. An electric fan comprising a support having
a laterally projecting cylindrical stub, a motor
carrying bracket having anopening in which said
mounted on said carrier and establishing an oper
cylindrical stub is received to pivotally mount
said bracket for arcuate adjustment, said bracket
having a second opening at right `angles to' and
10 communicating with the iirst named opening, and
means for frictionally clamping said bracket to
said cylindrical stub to hold said bracket in ad
justed position, said clamping means having a
clamping screw’threaded in said second opening,
15 and a hand grip on the outer end of said screw,
said hand grip being operable both as means for
ating connection between said motor land said
worm for driving the latter in either direction, a
reversing member mounted on said carrier for
reversing said gearing when moved in either di
rection, and two` ñxed trips between which said
reversing member is operable to effect the required 10
movements of said reversing member to reverse
said gearing.
10. An oscillatory electric fan comprising a
base, a standard rising rigidly therefrom, a worm
wheel secured to said standard, an oscillatory 15
carrier pivotally connected with said standard to
turning said screw and as a handle for vertically Y turn about the axis of said worm wheel, a fan
adjusting said bracket when said screw is
loosened.
f
»
7. An electric fan comprising a support having
a laterally projecting cylindrical stub, a motor
carrying bracket having an opening in which said
cylindrical stub is received to pivotally mount said
bracket for arcuate adjustment, said bracket hav
25 ing a second .opening at right angles tol and corn
municating with the first named opening, a fric
tion shoe in said second opening in contact with
said cylindrical stub, a coiled compression spring
in said second opening abutting the outer end of
20.
said friction shoe, a clamping screw threaded in
said second opening and abutting the outer end of
said spring, and a hand grip on the outer end of
said screw, said hand grip being operable both as
means for turning said screw and as a handle for
35 pivotally adjusting said bracket when said screw
is loosened.
8. An oscillatory electric fan comprising .a base
provided with a fixed worm wheel, a carrier sup
ported by said base to turn upon the axis of said
A40 worm wheel, a fan-driving motor mounted on said
carrier, a worm mounted lon said carrier and
` meshing with said worm wheel, reversible gearing
mounted on said carrier and establishing an oper
ating connection between said motor and said
45 worm for driving the latter in either direction, a
reversing member mounted on said carrier for
reversing said gearing when moved in either direc
tion, two fixed trips between which said reversing
member is operable to effect the required move
50 ments of said reversing member to reverse said
gearing, and means so> constructed and arranged
that said trips may be held in relatively adjusted
position.
9. An oscillatory electric fan comprising a base
55 provided with a fixed worm wheel, a carrier sup
ported by said base to turn upon the axis of said
driving motor mounted on said carrier, a worm
mounted on said carrier and meshing with said
Worm wheel, reversible gearing mounted on said 20
carrier and operatively connected with said motor
and said worm for driving the latter in either
direction, a reversing arm for said reversible gear
ing mounted on said carrier, and ñxed trips be
tween which said arm is operable to cause revers 25
ing of said reversible gearing when said carrier
has turned a predetermined distance in either
direction.
11. An electric fan comprising a support having
a laterally projecting cylindrical stub, a motor 30
carrying bracket having an opening in which said
cylindrical stub is received to pivotally mount said »
bracket for arcuate adjustment, said bracket hav
ing a second opening at right angles to and com
municating with the first named opening, and 35
means for frictionally clamping said bracket to
said cylindrical stub to hold Said bracket in ad
justed position, said clamping means having a
clamping screw threaded in said second opening,
and a handle on the outer end of said screw.
_ 12. An electric fan comprising a support having
a laterally projecting cylindrical stub, a motor
carrying bracket having an opening in which said
cylindrical stub is received to pivotally mount said
bracket for arcuate adjustment, said bracket hav 45
ing a second opening at right angles to and com
municating With the first named opening, a fric
tion shoe in said second opening in contact with
said cylindrical stub, a coiled compression spring
in said second opening abutting the outer end of 50
said friction shoe, a clamping screw threaded in
said second opening and abutting the outer end of
said spring, and a handle on the outer end of said
screw.
GEORGE ZINT.
55
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