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Патент USA US2388171

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Oct.- 30, 1945.!
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Filed July 13, 1944
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Patented Oct. 30, 1945
Edward W. McVitty, New York, N. Y.
Application July 13, 1944, Serial No. 544,686
3 Claims. (Cl. IMF-43.5)
This invention relates to an apparatus for
providing a landing for seaplanes and the like.
eye l3, from which the ?exible connections extend ‘
from the outer supports 6-9 or to an eye of an
The invention is intended for use in bodies of
water which at times are so rough as to make
opposite ?oat.
landings of seaplanes, ?ying boats and the like,
provided with a chain or rope and anchor, which,
when dropped to the sea or water bottom, will
anchor the ?oating breakwater in extended con
dition, retaining the individual ?oats in non-con
hazardous and unsafe.
The use of this inven
tion will reduce the roughness of such large
bodies of water in restricted areas, su?icient to
permit the safe landing of seaplanes, ?ying boats
and the like in such areas, without damage to the
planes, and facilitate the mooring thereof in
rough seas. Under certain conditions the reduc
tion of the roughness of the sea by the use of this
invention will permit the take-off of seaplanes
and ?ying boats without damage to them. The
invention has other and extended uses such as
creating substantially cahn water on an unproJ
tected shore for boats, during loading and un
loading, either from a dock or beach.
In the drawing, Fig. 1 represents a plan view 20
The four corners of the breakwater are eac
tacting relation.
The ?exible’ connections 6, ‘l, 8 and 9 may be
made of metal cable, chain or rope, or other ?ex
ible material which has the capacity of readily
bending to permit the ?oats to have a consider
able degree of independent movement.
The entire breakwater is in the form of a
large web and when in anchored position is re
tained in a stretched condition by the four an
chors 18, the connection between the ?oating
members being taut. When the breakwater is in
anchored position, the pull of the anchor tends
to pull the peripheral supports 6—9 under water,
of the ?oating breakwater of this invention, illus
but the outer rows of ?oats I will remain above
trated as anchored in a large body of water,
water in ?oating position as illustrated in Fig. 2. ‘
showing a seaplanein the act of landing upon
Assuming that the breakwater of this invention
the lee side of the breakwater; Fig. 2 is an end
sectional view of the device of Fig. 1; Fig. 3 is a 25 has been anchored and encounters rough water,
the waves will strike the outermost row of ?oats
detailed enlargement of some of the units mak
I and the force thereof will be initially damp
ing up the breakwater; and Fig. 4 is an end
ened. As the water proceeds toward the suc
view on the line 4-4 of Fig. 3.
cessive rows of ?oats and impacts such ?oats,
The ?oating breakwater of this invention is
composed of a multiplicity of ?oating members I, 30 its force will be successively reduced or damp
ened, providing a body or area of water on the
which are so constructed as to be water-tight and
lee side of the ?oating breakwater for the land
?oat with a portion thereof above water. The
ing or mooring of seaplanes and the like, for the
?oats I are arranged in spaced relation in a se
loading and unloading of boats upon beaches or
ries of parallel rows. The two outer rows 2 and
3 arranged in lengthwise direction and the two 35 at docks and for other use requiring substan
tially calm water in an area in which the sea
crosswise rows 4 and 5, are secured, respectively,
would normally be rough. By attaching the ?oat
to the ?exible lengthwise supports 6——'| and the
ing members to one another, a large degree of
crosswise supports 8-9. At the point of junction
independence of motion is permitted between the
of a lengthwise support and a crosswise support,
the ends thereof are connected by a suitable ring 40 successive rows‘ of ?oating units. The ?exible
connection between the ?oats is also a factor in
member ID. Each unit I of the outer rows of sup
ports is connected at two places to its corre
reducing the degree of impact transmitted from
sponding support by ?exible connection H, ex
row of ?oats to row of ?oats. This is desirable
inasmuch as the entire breakwater does not move
three ?exible connections to thesupports. One 45 as a unit but rather as a multiplicity of units,
each resisting quite independently whatever wave
of the ?exible connections for the corner unit
forces may reach it.
extends to the lengthwise support and one to a
cepting that the corner ?oats are connected by
crosswise support and the third to the point of
junction In of a crosswise support and a length
1. A breakwater for reducing the force of waves
wise support. Additional ?oating members I 50 comprising a series or ?oats, each ?oat being con
nected to an adjoining ?oat by a ?exible con
are arranged inside of the outer rows of such
nection, a series of ?exible connecting members
?oating members and are connected to the outer
forming the outside of said breakwater, the ?oats
rows of ?oating members and to each other by
at the outer portion of the breakwater being in
?exible connections l2. Each of the ?oating
members is provided with a suitable connecting 65 dividually connected to said ?exible connecting
, ,
members, ends of said connecting members con
ible connecting members arranged at the outside
verging together and being secured together, an
, the ?oat‘ units are arranged in rows and the units
of said breakwater and extending continuously
therearound, anchors arranged at a plurality of
points on said breakwater, ?oat units arranged
within said connecting members, the individual
?oat units being spaced apart, the outer rows of
'?oat units being connected with said connecting
of adjoining rows are arranged in staggered rela
members, each ?oat unit inside of said outer units
being connected to a plurality of ?oat units.
chors attached at a series of spaced points to
said connecting members for holding the ?oats
2. A breakwater according to claim 1, in which
3. A'breakwaterfor‘reducing‘theiforce' of, waves 10' I
to provide a'lee side; comprising a series‘ of ?ex
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