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Патент USA US2128814

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Aug. 3o, 1988.
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D. B. G1511' f
2,128,814 -
HOSE
Filed Oct. 2l, 1956
fly/7 727 1717 7
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BY
INVENTOIL
_Zb//za'äZ ß. 6225/6
ATTORNEY.
l_2,128,814
Patented Aug. 30,- 1938 Y -
UNITED STATES PATENT- OFFICE
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2,128,814
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4Daniel B. Gish, west springfield, Masa
Application October 21, 1936,1 -Serial Noi 106,880 V
' z claims.
(ci. 1384-56)
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canized. This application may be brought vabout
This invention' relates- to improvements in hose
in variousways.
and is directed more particularly to the pro
vision of a novel hose construction which is both
suitably flexible and adapted for conducting
Gl fluids of all kinds at high pressures.
As a nextv step, what >may be called a restrain
ing sheath 8 is formed around the sheath 4. The
sheath 8 preferably consists of a group of ele Gl
It is one of the principal objects of the in-- . ments l0 which are led onto- the sheath 4 under
ntion to provide a process whereby a> hose is ‘ tension and in such a way that they are wound
constructed which is capable of withstanding ex-._ spirally about the sheath in one direction and in
adjacency, as shown. A plurality of wires suit
treme pressures and is at the same ltime suili
ably
perform this function and according to the 1.4 0
ciently
flexible
so
ias
to
be
adapted
for
many
10
preferred
formlof the invention, the elements
and various purposes.
_I0 consist of wires.
According to the novel features of the inven
l
`
. In order to obtain a winding which will more
1 tion. -the hose is constructed of a plurality of
layers vof different materials and, as will appear,
or less prevent expansion and contraction, I have
to be capable of performing certain functions
tension a number of elements l0 onto the sheath
these layers have different characteristics so as « found that it is desirable to lead or wind under
simultaneously.
and zzo-'operating with theother layers to pro
vide alhose which'will withstand high pressures
'
A second restraining sheath l2 is formed about
and at the same time have the desired degree > sheath 8in a similar way. However, sheath i2
Il”
ñexibility.
'
" consists
’ lAlso, according to the features of this inven-V
tion, the method of making the hose- is such as
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to
facilitate the efficient and ecomonical produc
’ »tion ofthe hose and a homogeneous and ilrmly
bound product'is obtained;
Various other novel features of the invention
.will be hereinafter ¿more fully referred to in con
nectibn with the accompanying description of
the preferred form thereof, reference being hadthe drawing wherein:
30
Fig. ,1 is a fragmentary side «elevational view
vof a hoselembodying the novel features of the
invention;
Fig. 2 isfa
similar view to' show
_ and
of
the invention.
a modified form
adjacently-disposed
elements
tend. It may be stated that'it is- preferable that .
the windings vof sheath's 8 and l2 have-Substan
tially the same pitch and the elements M should
be of the same material as elements l0.
The winding operations of elements I0 and Il
may ormay. not be carried on simultaneously but
l have found that where they are wound simul-v
taneously under 'tension the torque set up by the "
winding in one direction is more or less counter
acted by the torque of the opposite winding so
that a balanced structure is obtained.
>
v Again I preferably provide a layer of cement
» >on this much of the hose so »as to form a binder
'
Referring now to the drawing more in deta
the'invennop win be muy described.
of
wound spirally about sheath 8 in a direction
opposite to that vin which the elements I8 ex
.
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for another sheath-i6. As will appear, I later
- vulcanize the hose so, it will be appreciated, the
At 2 is shown a hollow core or inner tube which application of cement layers at these different
is preferably formed of some more or less pliable stages oi.' its manufacture later serves to 'render
material.` The material ofthe core may vary, the assembly more homogeneous and bind the
A
' depending somewhat upon the use to which the diiïerent layers together.
hose is to be put. A bendable plastic composi» l Over the restraining sheaths- 8 and l2 a layer
tion „such asvulcani'zlng cement has been found i6 of windings I8 of some fibrous material is ap
plied under sumcient tension so that the elements
particularly suitable; - -»
What may be called a reinforci?g sheath 4 is
I8 lay smoothly and evenly and, as will later ap
disposed around a core 2 andthis is formed of a pear, serve to hold the -elements making up»
plurality of interlaced elements 6. According to sheaths 8 andv I! from getting- out of position.
‘ `th e preferred form ofthe invention. .these ele
These elements I8, which» may be of some mate
ments 6 consist of wire or cord and> they are rial such’as cotton, are preferably led onto the
50 br aided or interlaced in some way so as to form sheath l2 in much the same way asl are the ele
the tubular sheath 4. It will be appreciated that ments I0 and Il, that is spirally and in parallel
such- a sheathsuitably protects the' core and
ism and in one direction. A second fibrous _layer
at the same time has the desired flexibility.
Preferably there is then placed over this much 20 is formed by `winding adJacently-'disposed ele
ments 22_ spirally about layer I6 in an opposite- 55
of Vthe hose a layer of cement which can be vul
w
2
2,128,814
direction. 'I'hese layers function in one way to '
holdV the windings of the restraining sheaths.
This whole -assembly, that is core 2, reinforcing
,
u
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While- r have described the invention m greet
detail and with respect to a preferred form `there
of, it is not desired to be limited thereto since
and restraining sheaths and ñbrous layers, I call - many changes and modiñcations .may be- made
a carcass. As a final step, a cover member is therein without departing from the spirit. and
provided around the carcass and according- to the scope of the invention. What it is desired to
invention this may take various forms.
- claim and secure by Letters Patent of the United
In Fig. 1, a cover 24 is formed of interlaced ele
States is:
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ments 26. These elements 26 preferably consist
1. A flexible hose of the class described com
10 of cotton elements braided or woven together.
. When such a cover is used I have found it desir
able to provide a layer of cement on sheath 20
and then the whole -assembly is- vulcanized.
In Fig. 2, there is shown the outside of vthe
carcass, that is the sheath 20, and this has a
_ cover 30 therearound formed of some rubber com#
pound. Then the carcass and cover are vulcan
ized.
l With either type of cover and with the vulcan-l
izable cement the fabricated hose lis vulcanized
and this serves to provide a homogeneous .struc
ture with the different sheaths 'or layers combined
in such away that they may function for their
particular purpose and co-operatc with one an
prising in combination, a core having a bore, a 10
reinforcing sheath around said core formed of a
plurality of interlaced metallic elements, a layer
of cement over said sheath, a restraining sheath
around the vreinforcing sheath consisting of a
group of closely adjacent separate wire elements
wound spirally in one direction, a second restrain
ing sheath consisting of a group' of closely adja
cent separate wire elements wound spirally in an
opposite direction over the first-named restrain- ,
ing sheath, a layer of cement- over said second
restraining sheath, a layer of adjacently-disposed
separate fibrous elements wound spirally around
the second restraining sheath in one direction, a
second layer of adjacently> disposed separate ñ
brous elements Wound spirally over the first 25
fibrous layer in an opposite direction, the said
structure wherein a central more or less pliable ¿core, sheaths and layers forming a carcass, and
core is reinforced by a flexible sheath or sheaths a cover around said carcass, the whole being vul
of interlaced elements with the latter formed in
such a way that the bore of -the core is not unde
2. A ñexible hose of the class described com
sirably constricted and without impairing the prising in combination, _a core having a bore, a re- 30
bendability or flexibility of the hose. Further, inforcing sheath around said core formed >of a
the restraining sheaths, with the windings of one plurality of interlaced metallic elements, a layer
sheath disposed in an opposite direction from the of cement disposed over said sheath and in some
'windings of the other, serve to hold the reinforc
of the 'interstices thereof, a restraining sheath
ing sheath against expansion while the fibrous around-the reinforcing sheath consisting- of a 35
sheath or sheaths overlie, hold and protect the
group of closely adjacent separate Wire elements
other.
.
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It will be observed that I have provided a hose
canized.
restraining sheaths.
The vulcanizable cement may be used, at var--
ious stages of' the fabrication so the Whole may
be vulcanized to provide the homogeneous iiex-l
ible structure. The hose is so constructed'that
the core 2 is well reinforced while at the same
time the restraining sheaths prevent undue ex
45 pansion which would tend to impair the rein-v
forcing eiîect of sheath 4.
A
. ,
It should be pointed out that, if desired, a cover
of interlaced elements may be placed over the
carcass and an auxiliary cover of- some- rubber
50 compound, such a‘s 30, may be placed over this
cover of interlacedelements. That is, the par
ticular way in which the outside of the hose is
constructed is not so important as the construc
tion of the carcass and the vulcanizing feature.
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wound spirally in one direction, a second re
straining sheath consisting of a group of closely
vadjacent separate wire; elements wound spirally
in an opposite direction over the first-named re
40
straining sheath, a layer of cement disposed over
said~ second restraining sheath ~and in some _of
the interstices thereof, a layer of adjacently-dis
posed separate fibrous elements wound spirally 45
around the second restraining sheath in one di
rection, asecond layer of adjacently disposed sep
arate ,ñbrous elements wound spirally over the
first fibrous' layerv4 in an opposite direction, the
said core, sheaths and layers forming a carcass,
a layer of cement disposed over said carcass, and
50
a cover around the whole and the whole being ’
vulcanized.
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DANIEL B. GISH.
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