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Патент USA US2120591

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2,120,59'î"
Patented June 14, 1938 e
UNI-TED» STATES PATENT, OFFICE; Alexander Herman, Berlin, Qfermany
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» Application June 3, 1936, Serîal‘No.ì83,314 .
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In Germany June 4, 1935 ,
y s_clai’ms.
‘ "'I‘hisìinvention* relates to
(c1. 114-05)
Fig. 8 is a side' elevation of the carrier frame
watercraft with
frictiony reducing,- for example cylindrical floats
withA th‘eïfloat` chains Aarranged in the transverse
supportingl the `hull aboveïthe surface ofthe water
direction of the craft.`
and, the floats arranged inuchains being ycapable
offlimited movement, preferably’on the surface of
VFig. 9 is a section on line IX--IX of Fig. 8.
The form of construction of the watercraft
illustrated in Fig. 1' comprises a carrier frame- I,
the water-so as to follow the movementl of the
water (waves).
1‘
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Y
'
The object of the invention is to obtain balanc
ing and consequently `a considerable increase in
«
> `1
situated above the Water level, and supporting a
hull-2 of any suitable shape destinedv to accom
modatefpassengers and loads equipped at inter
10 the travellingïspeed of ' a» watercraft with the \ vals laterally-or preferably underneath with floats
above stated features and'to make this type of 3 arranged and constructed in a special manner.
watercraft seaworthy whilst the pitching motion If, as in the example illustrated, the watercraft is
driving by one or more ¿propellers 4 arranged
above the water the hull 2 may be guttiform or
The invention consists in that the ñòats in a stream-lined. The craft can be steered` by an
watercraft havingïth'e above mentioned features . airfrudder 5 or by 'a rudder mounted on the frame
I below the surfacel of the water.> In the case of
are threaded on stretched ropes` to» form float
chains vor are arranged in some other suitable drive by air-propeller, the hull 2 and/or the car
rier frame l may be equipped with supporting
manner on stretched ropes or yieldable links.
According to the invention, in the case where planes or wings 6 orv the like similar to those
the float chains are supported at a number of used on flying boats, so as to impart a certain
points, the lindividual float chains are supported buoyancy to the craft for reducing the friction
in the water. These wings 6 must not, however,
on the carrier frame of the hull'along their en
10
in rough weather’is reduced as much as possible
or even'eliminated.
25
make the craft capable of flying, seeing that the
The means for supporting the float chains rela
tively to the carrier frame of the hull are, accord
ing to the invention, soy constructed that they are
invention relates to a real watercraft which can 25
to aflimited extent elastic, yieldableror- articulated
-
the carrier frame of the hull and, if desired, also
a greater or smaller displacement volume acc‘ord- ’
with great compressive strengthbraced by metal
ing to the load to be carried.
'I'he carrier frame situated between thev floats 35
and the hull is preferably composed of lattice
Work, consisting of stays of uniform length ar
'
The iioats can with advantage be in the shape
of a bottle or cone, an ellipsoid or a ball.
ranged diagonally and interconnected at their
lustrated by way of example in the accompany
points of intersection, and over the ends of which
a wire is tightly stretched by coiled springs I1,
`ing drawing in which:-`-
as also shown in Figs. 2 and 5 so that the frame
v.Several embodiments of the invention are il
Fig. 1 „shows the watercraft in side elevation
with ball-ñoat-chains arranged in longitudinal
direction under the carrier frame for the hull.
y Fig. 2 shows on `a larger scale a similar view
g of the carrier frame with a slightly modified ar
rangement of iioats.
.
Fig. 3 is a cross section on line III-III of
Fig. 2.
Y
. Fig. ‘l is a perspective view 'of the carrier frame.
Fig. 5 shows in side elevation a carrier frame
with bottle-shaped iioat-chains.
Figs. 6 and 7 show in plan View two different
arrangements of float chains, without hull or
55
ranged and constructed in various ways; they are
the carrier frame, consist of lattice work in space
(Water, air) to be cleaved.
50
be steered by persons uninitiated in aviation.
The floats, which are generally designated by 3
in Fig. 1, may, according to the invention, be ar
preferably of spherical, conical or bottle-shape
and may be rigid hollow bodies or inflatable and
wholly or partly elastic, so that they can be given
The invention likewise consists in that the
means forgsupporting the float chains relative to>
Wire and offering little resistance to the medium
L:
20
tire length at points situated relatively far apart.
yet afford a ñrm support.
va0
15
carrier frame.
^
40
-thus assembled presents the least possible re
sistance to the medium (air and possibly water
in the case of high seas) to be cleaved when the
craft is travelling. Such lattice Work sections 45k
formed of stays and stretched Wire have a great
compression strength, and as they, at the same
time, offer but slight resistanceto the medium,
are also particularly suitable for the carrier
frame. They are cheap to build and of -com 50
paratively light weight. A carrier frame I com
posed of such structures is illustrated in all the
examples shown in the drawing and can be seen
most clearly in Fig. 4.
In Figs. 2 and 3 spherical floats I0 are pro 55
2""'
"
2,120,591
"z
vided which are threaded on ropes II in such a
manner that they can rotate thereon. The ropes
are yieldably stretched so that the floats I0 are
capable of limited movement in all directions.
They can move both in vertical and also in hori
Zontal direction and thus follow the movements
of the waves to a limited extent. The ñoats I0
are arranged in parallel rows in longitudinal di
rection underneath the carrier frame I, the rows
of chains being subdivided into sections I2 and
I3. The individual float chain sections l2, I3
may be yieldable along their length at inter
vals by stays, should the length of the carrier
frame so require.
Such intermediate stays are
15 indicated in Fig. 1.
Fig. 5 shows a similar arrangement to Figs. 2
and 3, but the iloats I4 are of bottle- or conical~
shape.
,
Fig. 6 shows in plan View an arrangement of
20 the float rows in which the ñoat chains con
verge at I5 at the bow of the carrier frame, in
stead of extending parallel along their entire
length, Whereas the rear chain sections are ar
ranged in three parallel rows along their entire
25
length.AV
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I
claimz-Á
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1. A water craft for high speeds driven by
propellers, Vcomprising in combination a hull;
short supporting planes on Asaid hull, a frame
supporting said hull said frame consisting of
pressure-resisting lattice work formed by inter
connected diagonal stays and wires on the ends
of said stays bracing said stays, ropes carried
by said frame and yieldable relatively thereto,
and floats rotatably mounted on said ropes and 10
capable of limited movement in all directions at
a distance from said frame.
2. A water craft for high speeds driven by
propellers, comprising in combination a hull,
short supporting planes on said hull, a frame 15
supporting said hull said frame consisting of
pressure-resisting lattice work formed by inter
connected diagonal stays and wires on the ends
of said stays bracing said stays, ropes elastically
supported by said frame and divided in the 20
length' of said frame and yieldable relatively
thereto.; and ñoats rotatably mounted on said
ropes and capable of limited movement in all
directions at a distance from said frame.
3. A water craft for high speeds driven by 25
propellers, comprising in combination a hull,
short supporting planes on said hull, a frame
supporting said hull said yframe consisting of
Fig. '7 is a plan View showing another arrange
ment of the float chains.
In Figs. 8 and 9 the rowsof floats I6 are ar
ranged transversely to the direction of travel. . pressure-resisting lattice Work formed by inter
30 'I'he arrangement is otherwise similar to that connected diagonal stays and wires on the ends 30
illustrated in Figs. 2 and _3. The transverse ar
of said stays bracing said stays, ropes carried
rangement presents the advantage that the water
by said‘frame and yieldable relatively thereto,
friction is reduced owing to the rotation of the
and floats in the _formof rotation bodies rotat
floats. The ropes on which the floats are thread
ed should in this instance be so stretched that
ably mounted on said ropes and united to form
ñoat chains capable'of limited movement in all 35
the floats can follow the movements of the Wa- Y directions at a distance-from said frame.
ter surface to alimited extent.
'
ALEXANDER HERMAN.
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