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Патент USA US3029503

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Aprll 17, 1962
APPARATUS
WEBS
G. MOHRING
PREPARING UNDULATED
WOVEN MATERIAL
Filed July 28, 1959
2 Sheets-Sheet 1
.LML II \ ML‘ MR M M
"
4
2
3,029,491
4
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-
INVENTOR.
WW ?vdf'ky’
APl'll 17, 1962
Filed July 28, 1959
G. MOHRING
3,029,491
APPARATUS FOR PREPARING UNDULATED
WEBS 0F‘ WOVEN MATERIAL
, 2 Sheets-Sheet 2
FIETLW‘
INVEN TOR.
United States Patent O?ice
3,029,491
Patented Apr. 17, 1962
i.
2
Gustav Mohring, 3 Salzrnannweg, SluttgarbN, Germany
ing and attaching means and are arranged above shap
ing transporting means including two endless toothed
belts 2 and meshing therewith. An excessively fed web
of ‘woven material B passes between the endless toothed
Filed July 28, 1959, Ser. No. 830,044
6 ?aims. (Cl. 26-57)
which are displaceable in relation to the endless toothed
This invention relates to certain new and useful im
provements in an apparatus for preparing uniformly un
‘belts 2. The pulleys 5 also have engagement with tan
gentially approaching needles or grippers carried by a
tenter chain 4 and forming a receiving transporting
3,ll29,491
APPARATUS FOR PREPARING UNDULATED
WEB?) 6313 WGVEN MATERIAL
belts 2, moving around pulleys 3, and the pulleys 5
dulated webs of woven material and is a continuation— 10 means which conveys the undulated web B away from
in-part of the application “Device for the Manufacture of
the belts 2 in the direction of the arrow. The portion of
Undulated Sheets of Textile Material,” filed by me on
the pulleys S cooperating with the belts 2 is provided
November 26, 195 6, Serial No. 624,451, now US. Patent
with a resilient layer or rim 61 consisting of foamed
No. 2,961,735, and embodies improvements in the art
material, such as foamed rubber, foamed plastic or the
thereover.
15 like, applied circumferentially on to the pulleys 5. In
My application mentioned above refers to‘ an apparatus
the case of a tenter chain carrying needles as shown in
having an endless toothed belt arranged at each edge
FIG. 1, it is preferred to arrange a brush roll 6" co~
of a web of woven material and cooperating with one or
axially with each rim 61 and between the rims 61 above
more pulleys in such a manner that an excessively fed
the needles in order to avoid that this part of the pulleys
web of woven material is pressed into the endless toothed 20 5 be damaged by the needles. The rims 61 of foamed
belts and immediately thereafter into an associated con
v‘eyor chain of a tentering machine.
'
With this apparatus it is possible to attain a uniform
material ‘and the brush roll 6" may have a common
hub as may be seen in FIG. 3. When grippers are used
the rim 61 of foamed material may extend over the
tmdulation at a low mechanical outlay and at the same
entire width of the pulleys 5.
time to transfer the undulated web onto a tenter chain 25
To eliminate the danger of
carrying needles or grippers.
The pulleys are provided with a brush rim forming
decolorizing the edges of,
the web passing through between the belts 2 and the
pulleys 5, each rim 61 of ‘foamed material can be cov
a resilient layer which is necessary for continuously press
ered with a resilient coating, such as a hose-like mem
ing the web into the gaps bet-ween the teeth of the end
her 7 (FIG. 3) of soft rubber or "the like, having a greater
less toothed belts.
30 width than the rim 61. This hose-like member 7 is
Experience has proven that this brush rim does not
applied to the rim 61 under, initial tension so that it is
always possess sufficient resiliency so as to fully press the
?rmly held thereon and at the same time its edge por
Web into the gaps between the teeth of its endless toothed
tions projecting on both sides closely engage and cover
belt, particularly in the case of deep undulations, so that
the lateral surfaces of the rim 61, as shown in FIG. 3.
the undulations produced have a depth smaller than 35
Instead of applying a particular hose-like member the
that of the gaps between the teeth of the endless toothed
be t.
The present invention overcomes this disadvantage in
that the resilient layer mounted circumferentially on the
pulleys consists of a rim of foamed material, such as moss
rubber or foamed rubber, foamed plastic or the like,
extending at least in the region of the endless toothed
belts, whereas the portion of the pulleys serving for
fixing the web onto needles or grippers of a tenter chain
is constructed in known manner as a brush.
rim 61 can also be manufactured in such a manner that
it has a ?lm-like surface which is not or only less porous
‘and serves the same purpose.
The invention may be embodied in other speci?c forms
without departing from the spirit or essential character
istics thereof. The present embodiment is therefore to
be considered in all respects as illustrative and not re
strictive, the scope of the invention being indicated by
the appended claims rather than by the foregoing de
scription and all changes which come within the mean
With these improved pulleys it is possible to readily 45 ing and range of equivalency of the claims ‘are there
form deep undulations extending closely one behind the
fore intended to be embraced therein.
other which are capable of being pressed into tenter
I claim: '
chains of all types.
1. An apparatus for undulating a textile sheet and for
To avoid decolorizing of the edges of the web by
transferring it to transporting means comprising, in com
50
treating agents, which may have been sucked up by the
bination, shaping transporting means having an undu
rim of foamed material, a resilient coating which is not
lated surface and adapted to transport said sheet during
porous, such as va ring of soft rubber or the like, is ap
undulation thereof to a predetermined point; receiving
plied to the rim of foamed material in such a manner
‘transporting means having holding means thereon and
that it covers as a film the circumference and the lateral
55 adapted to transport the sheet undulated by said shaping
surfaces of the rim of foamed material.
transporting means from said predetermined point while
A preferred embodiment of the invention is illustrated
the undulations obtained by said shaping transporting
in ‘the accompanying drawings, in which
means are maintained; and combined forcing and attach
FIG. 1 is a diagrammatic general side elevation of the
ing means including pulley means having an annular rim
apparatus, showing the improved pulleys ?xing the web
portion formed of resilient foamed material adapted to
60
of woven material onto needles of a tenter chain;
press against said undulated surface in advance of and
2 is a cross-sectional view of the dual pulley of
up to said predetermined point for forcing the textile
FIG. 1;
sheet into contact with said undulated surface so as to
PEG. 3 is a cross-sectional view of another embodi
undulate said textile sheet, said combined forcing and
ment of the dual pulley of FIG. 2;
65 attaching means also including means for attaching in
FIG. 4 is a fragmentary plan View of the ‘arrange
the region of said predetermined point said undulated
ment according to the present invention and will serve
sheet to said holding means of said receiving transport
to illustrate the feeding of the textile sheet to the appa
ing means, whereby the undulations of said sheet remain
ratus of the present invention, a brush 5 thereof repre
unchanged during transfer of the undulated sheet from
senting either the brush of FIG. 2 or FIG. 3.
said shaping transporting means to said receiving trans
Referrirn7 tov the drawings, reference numeral 5 indi
porting means.
cates rotatable pulleys which constitute combined forc
2. An apparatus for undulating a textile sheet and
3,029,491
3
for transferring it to transporting means comprising, in
combination, shaping transporting means including an
endless toothed belt having an undulated surface and
adapted to transport said sheet during undulation there
of to a predetermined point; receiving transporting
means having holding means thereon and adapted to
transport the sheet undulated by said shaping transport
mg means from said predetermined point while the un
4
ing means including pulley means having an annular rim
portion having a peripheral face and formed of resilient
foamed material and of a continuous resilient layer
covering said peripheral face of said annular rim por
tion formed of resilient formed material, said pulley
means being adapted to press against said undulated
surface in advance of and up to said predetermined point
for forcing the textile sheet into contact with said undu
lated surface so as to undulate said textile sheet, said
dulations obtained by said shaping transporting means
are maintained; and combined forcing and attaching 10 combined forcing and attaching means also including
means for attaching in the region of said predetermined
means including puiley means having an annular rim
point said undulated sheet to said holding means of said
portion formed of foam rubber adapted to press against
receiving transporting means, whereby the undulations of
said undulated surface in advance of and up to said
said sheet remain unchanged during transfer of the un
predetermined point for forcing the textile sheet into
contact with said undulated surface so as to undulate 15 dulated sheet from said shaping transporting means to
said receiving transporting means.
said textile sheet, said combined forcing and attaching7
5. An apparatus for undulating a textile sheet and for
means also including means for attaching in the region
transferring it to transporting means comprising, in com
of said predetermined point said undulated sheet to said
bination, shaping transporting means having an undulated
holding means of said receiving transporting means,
whereby the undulations of said sheet remain unchanged 20 surface and adapted to transport said sheet during undu
lation thereof to a predetermined point; receiving trans
during transfer of the undulated sheet from. said shap
porting means having holding means thereon and adapted
ing transporting means to said receiving transporting
to transport the sheet undulated by said shaping transmeans.
porting means from said predetermined point while the
3. An apparatus for undulating a textile sheet and for
’ undulations obtained by said shaping transporting means
transferring it to transporting means comprising, in com
are maintained; and combined forcing and attaching
bination, shaping transporting means including an end
means including ?rst pulley means having an annular rim
less toothed belt having an undulated surface and
portion formed of resilient foamed material adapted to
adapted to transport said sheet during undulation there
press against said undulated surface in advance of and
of to a predetermined point; receiving tenter chain
means having needles thereon and adapted to transport 30 up to said predetermined point for forcing the textile
sheet into contact with said undulated surface so as to
the sheet undulated by said shaping transporting means
undulate said textile sheet, and also including second
from said predetermined point while the undulations ob
pulley means coaxial with said ?rst pulley means and in
tained by said shaping transporting means are main
cluding a brush~like annular rim portion for attaching
tained; and combined forcing and attaching means in
cluding pulley means having an annular rim portion ’ in the region of said predetermined point said undulated
sheet to said holding means of said receiving transport
formed of foamed plastic material adapted to press
ing means, whereby the undulations of said sheet remain
against said undulated surface in advance of and up
unchanged during transfer of the undulated sheet from
to said predetermined point for forcing the textile sheet
said shaping transporting means to said receiving trans
into contact with said undulated surface so as to undu
porting means.
late said textile sheet, said combined forcing and attach
6. An apparatus as de?ned in claim 4 wherein said
ing means also including means for attaching in the re
rim portion includes an outer cylindrical face and sub
gion of said predetermined point said undulated sheet
stantially plane lateral faces and wherein said continu
to said needles of said receiving tenter chain means,
ous resilient layer covers said entire cylindrical face and
whereby the undulations of said sheet remain unchanged
during transfer of the undulated sheet from said shap 45 at least portions of said lateral faces adjacent to said
cylindrical face.
ing transporting means to said receiving tenter chain
means.
4. An apparatus for undulating a textile sheet and for
transferring it to transporting means comprising, in com 50
bination, shaping transporting means having an undu
lated surface and adapted to transport said sheet during
undulation thereof to a predetermined point; receiving
transporting means having holding means thereon and
adapted to transport the sheet undulated by said shaping
transporting means from said predetermined point while
the undulations obtained by said shaping transporting
means are maintained; and combined forcing and attach
References ?tted in the ?le of this patent
UNITED STATES PATENTS
2,577,880
Dodge ______________ __ Dec. 11, 1951
FOREIGN PATENTS
791,431
644,128
656,685
101,837
France _____________ .._ Sept.
Germany ____________ __ Apr.
Germany ___________ __ Feb.
Sweden _____________ __ June
30,
24,
12,
23,
1935
1937
1938
1941
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