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Патент USA US2122346

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June 28, 1938.
E. HORN
TOY AIRPLANE
Filed Jan. 19, 1937
2,122,346
Patented :June 28, 1938
2,122,346
UNITED STATES PATENT OFFICE
2,122,346.
TOY AIRPLANE
Ernst Horn, Nuremberg, Germany
Application January 19, 1937, Serial Nb. 121,357
In Germany January 31, 1936
2 Claims. (CI. 46-78)
This invention relates to toy-airplanes and rod I0 extends into the interior of the fuselage
more particularly to toy-airplanes that are driven
I and is guided therein by means of the bent
by means of a propeller and a clockwork and
suspended from a string or cord.
5
As compared with known toys of the present
kind, my present novel toy-airplane consists es
sentially therein that at the tail of the fuselage‘
there is provided amovable tail-rudder which
at the commencement of the ?ight is obliquely
positioned and adjusted by means of said clock
work automatically into straight direction, as
soon as the toy-airplane which is suspended from
a cord or string has been directed into its normal,
circular ?ight.
,
off end or nose of a prolonged rail I2 that forms
part of the casing of the clockwork 5. On said
rail I2 there is further mounted a slide I3 which (PI
is longitudinally displaceable thereon and which
is under action of a retracting spring I6, said
slide I3 co-operating with a cam-disk or eccen
tric I4 mounted on said winding-stem 6, a fric
tion clutch I5 being inserted therebetween.
Backward rotation of the winding stem 6 which
takes place during running of the clockwork will
cause said cam-disk or eccentric I4 to rotate
therewith, the latter now acting upon said slide
I3 to displace the same in longitudinal direc
tion, thus to push said actuating rod III for the
tail-rudder 8 towards the outside and to adjust
By so arranging the toy-airplane the said nor
mal circular ?ight will be automatically initiated
from the suspended condition of the toy and‘
after the latter has assumed normal circular said rudder into its straight position with respect
motion, said tail-rudder is automatically ad
to the fuselage I. Adjustment of the rudder 8
justed into straight position by action of said into its oblique position, as indicated in Fig. l,
clockwork, thus maintaining the further circular is effected by hand and limited by a lateral stop
normal ?ying motion of the toy.
‘
II on the tail of said fuselage. In obliquely ad
~The toy-airplane now may enter from its sus
justed position of the rudder 8 the airplane will
pended condition into said circular normal mo- ‘ start from its suspended condition into its nor
tion in fully equalizedcondition and does not
need to be thrown by hand into said motion.
In addition, the novel toy-airplane when being
started from said suspended condition to, follow
mal circular path of motion and after it has
assumed this motion the rudder 8 is being moved
into its straight position by action of said cam;
disk or eccentric I4 which is rotating with the
its normal circular path of motion will no more
be subject to any rotation or similar motion
work 5.
round the suspension-cord. Also, any failure of
the toy-airplane to start will be positively avoided
and the latter caused to gradually move quietly
and in fully equalized condition from its sus
pended condition ?rst into a single spiral path
of motion and thereupon into its normal circular
path of motion andv continuously kept therein
during operation of the clockwork.
'
In the accompanying drawing, which forms
40 part of this speci?cation, I- have shown some
examples of construction of my novel toy-air
plane, Fig. 1 being a bottom-view of one con
struction of my present toy, Fig. 2 a lateral view,
partly broken away, taken on Fig. 1, and Fig. 3
45 an enlarged partial detail view showing the
clockwork and the controlling mechanism for
properly steering the aforesaid tail-rudder.
In my novel toy-airplane, the hollow body or
fuselage I is provided with a wing 2 detachably
secured thereto. Said fuselage I is further
- a spring-driven clockwork 5 with a downwardly
projecting winding-stem 6. To the rear end of
the fuselage I, there is hinged, as shown at ‘I,
the‘ tail-rudder 8, and an actuating rod I0 is
,55 pivoted as shown at 9 to said rudder 8. Said
winding-stem 6 during the running of the clock
Subsequent to the outward motion of .
said rod ID by action of the slide I3 and sub
sequent to the 'motion of the rudder 8 into
straight position, further rotation of said cam
disk I 4 will no more act on said rod III, that is"
to say, said rudder during normal circular flight
of the toy-plane will remain in the same posit-ion
with respect to the fuselage. On the other hand,
. said rudder is again adjusted into its oblique
position by hand after having again wound-up
the clockwork.
40
While I have shown and described what is
now thought to be a preferred embodiment of
my device, yet it is to be understood that it is
susceptible of other forms and expressions within
the spirit and scope of the invention as herein~
after claimed.
I claim:
-
1. A suspended toy airplane, comprising sus
pension means, a fuselage, wings, a propeller,
and a rudder, said rudder being adapted to be po
sitioned to direct said airplane into a circular
course from a stationary pendant position, a rud
der actuating rod having one end operatively
connected to said rubber and having the other
end positioned within said fuselage, a pdwer
2
2,122,848
plant in said fuselage and operatively connected
in said fuselage and operatively connected to said
to said propeller to-actuate the'same to move
propeller to actuate the same to move said air
said airplane in a generally forward direction, plane in a generally forward direction, a rotat
means associated with said power plant and op
ing cam operatively connected for rotation to
erable thereby to engage the inner end of said 7 said power plant, a rail member in said fuselage,
rod to move the same to position said rudder to
maintain said course after the forward move
ment of said airplane has commenced, and said
means thereafter being disengaged from said rod
'
ll)
to permit the maintenance of said rudder in said
last named position.
2. A'suspended' toy airplane, comprising sus
pension means, a fuselage, wings, a propeller, and
a rudder, said rudder being adapted to be posi
tioned to direct said airplane into a circular
course from a stationary pendant position,‘ a rud
der actuating rod having one end operatively
connected to said rudder and having the other
end positioned within said fuselage, a power plant
a slide mounted on said rail member, spring
means normally maintaining said slide adjacent
one end of said rail. said slide being engageable
with said cam for sliding movement against the
action of said spring, a portion of said slide dur
ing said movement being adapted to engage'the
inner end of said rod and move the same there
with in a direction to move said rudder from said
?rst named position to a position to maintain said
course, said slide being t'hereafter disengaged
from said rod-to permit the maintenance of said
rudder in said last named position.
ERTNST HORN.
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