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Патент USA US2119158

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‘Patented May
‘ 2,119,158
1938 >
_ UNITED STATES PATENT OFFICE ‘
2,119,151;
_
‘ mama Home.
_
Kari Frey, Duel-en, Germany
Application‘ November 26,1935, Serial N01511:"
,
U
In Germany November so, 1934
5mm (c1. sea-1)
-B'y_ reason of its high resistance to heat, as
of the packing as shown in Fig. 2.. The’ ‘width of"
the bent-over edges may be varied. Other aper
medium at those places where high temperatures turbs in the plate I, as,-for example,' the ‘bolt- -
bestos is used to a large extent as a packing
occur. When high pressure strains also occur, as . holes I, need not be edged.
Thelfabric for the gasket [consistsy for_ex- 5
5 for example, is the case at the places ‘of connec
4' tion of exhaust pipes or at the cylinder head ample, of three layers,v 5, 6, ‘I, which, if desired,
joints of explosion and combustion engines, it is
are located one above the other in such manner,
necessary to increase the strength of the gaskets
that the weft threads 8 of one layer arelocated
by metal foils, as asbestos is only capable of very
in the gaps between the weft strands of the next I
10 low resistance, to‘ mechanical strains.‘ A con
siderable disadvantage of such asbestos packing
resides in that the packing mass, when in use,
and particularly when it is first subjected to high
temperature shrinks considerably. Such a pack
1‘ ing has to be tightened-up again a few days after
adjacent layer. ,The various layers 5, 6, ‘I are con- 10
nected together by weaving separate warp
thread's'?, Iii, through all'the layers. The method
of binding each of the separate layers ,5, 6, or ‘I
and also of the complete fabric is of no impor-1
tance in the present case. The most preferable .15
method appears to be a binding by which as'high
pressed to its smallest thickness it does not again a degree of elasticity as possible is obtained.
'The production of such gaskets or packing is
expand when the bolts‘ are loosened. Such as
bestos packing can therefore only be used once. ‘ effected by stamping or cutting the same from a
20 In order to increase the, ability of withstanding completely woven plate, whereupon the passages 50
mechanical strains, the flat sides of the packing are then edged in the manner above referred‘ to
are frequently covered withthin metal vfoils. with the metal foil.
If desired, metal foils may be provided on one
' After use for a long time, the asbestos however
becomes so friable and dried that narrow packing . or both of the ?at sides of the packing, according
25 stripsthereof and the like frequently break not
to the invention, as shown by the broken line .-I i 35
in Fig.- 2 on the underside of the plate.
withstanding the'metal foil. 7
.
insertion. When once the packing has been com
~ ‘ It has been. proposed to reinforce asbestos
packings by insertions of wire or metal fabrics,
but, however, the elasticity of the fabric was not
30 increased thereby.
’
The present invention relates to a‘ packing for
high pressure and temperature strains which does
not possess the above described disadvantages.
According to the invention the packing consists.
When clamping a gasket between the two parts"
to be packed, the clamping pressure is taken up
by the entire plate. By reason of the elasticity
of the multi-layer fabric any irregularities are '0
directly equalized, which is not always the case
with asbestos packing as knots or lumps and the
like frequently limit the degree of compressibility.
The actual packing strain, as was otherwise also as
35 of a plurality of layers of fabric with any type of the case with ‘the previously known devices‘, is .
binding and formed by any method-of plaiting, of ' absorbed by the parts directly surrounding ‘the
metal, iron, steel or an alloy, whilst the layers of passage openings 2, edged with’ a metal foil as,
each gasket are edged by metal foil. Preferably. hereinbefore described, which in consequence of '
the ‘separate‘layers of the metal fabric are con- ' the strong ‘support that they receive from the re
40 " nected together by interweaving.
In the accompanying drawing are illustrated,
by way ofexample, two constructions of packing
according to the invention.
-
‘
. 1
maining parts of the fabric, are capable of with- m‘
standing the highest strains.
7
.
As con?rmed by experiments, the packing ac
cording to'the present invention swells again very
fig. 1 shows an exhaust packing joint in plan considerably after being relieved of load.. Conse- 45
45 view, ‘approximately in its actual size.‘
' quently, it‘is possible touse the same packing a
Fig. 2 is a cross section through one half of
number of times, which was usually not the case ‘
Fig. 1 drawn to a larger scale, and '
with the packing plates heretofore employed.
' Pig. 3 shows a cylinder head packing in plan.
The gasket or packing plate I, which in accord-- ' Further, such a packing may be firmly clamped
50 'ance with the purpose to which it is to be put may
immediately after insertion and needs to be tisht- 5o
ened up only once, subsequent tightening-up not
' have any suitable shape, consists of two or more . being necessary. A particular advantage of the
layers of metal fabric or .wire netting. The open
ings! areedsedwithametalfoillinsuch a
56 bent overthatitheybearasalnltthe?atsides
. mannertbat the edges of the metal foil are so
packing according to the inventionresides in the
advantageous heat conductivity which renders‘
the packing particularly suitableyfor example, ‘5
2
_ 2,119,165
‘ for use as a cylinder head gasket as shown in
Fig. 8.
>
'
3. A packing plate, particularly for high pres
sure and temperature strains, comprising a plu
The wire for the fabric I may consist of any,‘ ‘ rality of metal fabric layers, weft threads cfeach
suitable metal, for example, copper, brass, bronze, layer being located in the gaps between the weft,‘
5 iron, steel, or the like. The wire may be of any threads of 'adjacent layers, warp threads woven 5
suitable pro?le or section. The edging I'is pref
through said layers, said warp threads binding
erably made of copper or iron- and in the case
of high strains, of nickel or any other metals or
alloys.
'
-
the layers, said packing being formed to pro
vide an ori?ce through the plate, a metal edging
to said ori?ce, and a metal surface to the plate.
Occasionally it may be advisable to ?ll the hol->
4. A packing plate, particularly for high pres
‘low spaces of the fabric l by ?lling substances sure and temperature strains, comprising a plu
of any suitable type or to coat the fabric on both rality of fabric layers, weft threads of'each layer
‘sides with‘ compact nonmetallic packing media. being located between the weft threads of adja
10 (
I claim:
_
-
1
10
cent layers, warp threads woven in and between
15
1. Packing, particularly ’for high pressures and said layersand connecting the same,- said pack- 15
temperatures, comprising a‘ plurality of lay, rs or, ing being formed to provide an ori?ce through
metallic fabric, said packing being’ formed, to the plate, a metal foil edging to said ori?ce,
provide an ori?ce therethrough, the edges“ of and-a metal surface for the plate.
, saidorifice being reinforced by metallic foil, me
51 A'packlng plate. particularly for high pres
20 .tallic coverings for the ?at surfaces of the pack
sure and temperature strains, comprising a plu 20
ing, and one or more metallic threads connect
ing the ‘separate layers of ‘metallic fabric to
gether.
\
_
v
"
,
.
2. A packing plate, particularly for‘higlh pres
25 sure and temperature strains, comprising a plu
rality of metal fabric layers; weft threads of each
rality of fabric layers, weft threads of each layer
being located between the weft threads of ad
jacent layers, warp threads woven in and be
tween said layers, said warp threads connecting
the layers, ?lling material disposed in the hollow, 25
spaces, said packing being formed to provide an
o'ri?ce through the plate, a metal foil edging to
layer being located ‘in the gaps between the weft
threads of adjacent, layers, warp‘ threads'woven said ori?ce and a metal surface for the packing
through said layers, said warp threads connect ‘plate.
30 ing the layers, said ‘packing being forined‘ to pro
.vide an ori?ce through said plate and a metal
edging to said ori?ce; r’.
‘
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30
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