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Патент USA US2132156

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Oct: 4, 1931s.v
Filed Nov. 12, 1955s
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Oct. 4, 1938.
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2,132,156 `
Filed NOV. l2. 1956
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Patented Oct. 4, 1938
David Gessner, Worcester,
Application November 1_2, 1936, Serial No. 110,477 I
1 Claim.
‘This invention relates to the manufacture of s shown in detail in my prior Patent No. 2,017,455,
cloth, and particularly to the shrinking and dry
ing of wool fabrics preparatory to garment cut
issued October 15, 1935.
The cloth passes from the suction rollv 22 '
ting. It is well known that cloth finishing opera
5 tions, such as shearing, brushing, pressing, etc.,
tend to stretch and elongate woolen and worsted
' fabrics to such an extent that careful shrinkage>
is necessary afterwards before they can be made
around a 'guide-roll 24 4and second driven feed
roll 25 and is deposited in a downwardly con- - 5
tracted chute or so-called “sweat-box” 26 in
which the cloth is closely packed and folded.
As the cloth leaves the lower end of the chute
into garments. ‘ Mere dampening and immediate or sweat box 26, it is deposited on a conveyor belt
l0 drying of such fabrics is not suflicient, as com- . 21 supported on driven rollers 28 and 29 which 10
move the cloth, still in folded condition, slowly
to the right as viewed in Fig. 1. A blanket or
It has been customary in many of the higher covering 2l“ may be removably"supported above
class establishments to moisten the fabric, let it` the conveyor belt 2l.
'rhe'eleth C is then drawn upward past e guide 15
l5 sweat overnight and then hang it up in festoons
plete shrinkage of them requires a, substantial
period of time.
for a considerable period, frequently twenty-four
to thirty-six hours, in order to dry it before de
livering it to the garment cutters.
It is the ¿general object of my present inven
20,tion to provide an improved method and appa.
ratus for properly shrinking and drying cloth, by
which the wetting, sweating. shrinking and dry
ing may be carried out in an uninterrupted
operation and much more rapidly than could be
25 done with satisfactory4 results by methods or4
apparatus previously in use. By the practice of
bar 3D and guide-roll 3| by a driven feed roll 32 '
and is then drawn over a spreader roll 33 and
under an additional spreader roll 34 (Fig. 2) by
a driven feed roll 35.
> The eleth is then deposited en a belt een- 2°
veyor 36 by which it is carried into a drier 40
in which the cloth is transferred to successive
conveyors 4I and is exposedto heated air de
livered to the drier by a fan 42 through a main air
vduct 43 'and branch ducts 44 and 45.
my improved method and the use of my improved
part of my Present invention and for a more com
apparatus,'V`v substantially uniform and
plete description thereof, reference is made to
'I'he detailed construction of the drier forms no
` my -prior Patent No. 1,907,786, issued May 9, 1933.
v'frne dem c is'deuvered from the drier by a 30
30 My invention further relates to an' ordered pro
bottom conveyor 48 and is preferably deposited
cedure and to deñnite arrangements and com
in loosely folded condition in a. cloth receptacle
binations of parts which will be hereinafter de
shrinkage is attained.
scribed and more particularly pointed out in the
49, from which it is drawn upward over guide
appended claims.
bars 50 and 5| and a guide-roll 52 by a driven
A preferred form of my improved apparatus,
suitable for the carrying out of my improved
method, is shown in the drawings, in which
Fig. 1 is a side elevation, partly in section, of
the left-hand end portion of my improved shrink
40 ing and drying apparatus; and
Fig. 2 is a side- elevation, partly in section, of
feed roll 54. It may then` be deposited in folded
condition on a truck 55 by a folding device 56.
Suitable driving mechanism is provided, which
insures that all parts of the apparatus shall oper
ate in a predetermined and desired speed relation.
For purposes of illustration I have indicated a
motor M (Fig. 2) connected by a belt 6U to drive
the right-hand end portion of the apparatus.
the fan 42, and connected by a worm 6I, worm
Referring to the drawings, I have shown a pile gear 62, wormv 63, worm gear 64 and bevel gears
of cloth C disposed in‘folded condition ona truck' 65 and 66`to drive a main shaft 61. The shaft
45 I0 by which it maybe conveniently presented to 61 is bolt-connected as indicated to drive- the
the apparatus. The cloth .C passes overeguide
several feed rolls, the conveyor 21, the conveyors
rolls Il and l2 and is then drawn downward and 38, 4l and 48 in the drier 40, and the folding
around guide-rolls~ I3, I4 and l5 in a steaming device 58, all at suitable relative speeds.>
As substantial shrinkage of the fabric takes
device I6. 'I'he cloth then travels upward aroundv
place in the sweat-box 26 and while the dampened
a guide-roll I1 to a.- driven feed roll 20.
The cloth is then drawn over a spray pipe 2l cloth is resting under the covering 21a on the con
and around a suction roll 22 having' a suction veyor 21, it is desirable that the feed rolls 32 and
nozzle 23 mounted therein. The suction roll and 35 be driven -at a correspondingly slower surface
55 nome may preferably be of the construction speed, andthe feed roll 54 is driven at a stillslower
speed to allow for the additional shrinkage which
takes place in the drier 40.
` The speeds are so arranged that a substantial
period of time is consumed lby the cloth in passing
through the box 28 and along they conveyor 21.
This period of time varies for different kinds and
weights of fabric but is usually from thirty to
forty-five or sometimes sixty minutes.
The operation of the apparatus described will
be readily understood. The preliminary steam
ing of the cloth facilitates the moistening opera
tion. The combined action of the spray pipe and
suction roll effectivelymoisten all parts of the
more complete shrinkage andV more satisfactory
and uniform results.
' My present invention is not to be confused with
fulling or milling machines or with any other ma
chines which compact, felt or shrink fabric before
finishing operations such as shearing, brushing
or pressing are performed thereon. My presentl
invention is designed for the ilnal shrinking of
otherwise finished wool and worsted fabrics for
immediate use by cutters or tailors and performs
substantially 100% shrinkage of said finished
By the term “moistening” as `used in the claim
fabric without excess of water. 'I'he packing of _ I mean supplying steam or water to the finished
fabric and removing surplus water therefrom to
~15 the wet cloth in the sweat-box and its slow pas
sage therethrough and along the conveyor pro
duces a condition which is ordinarily' called
"sweating", as the temperature of the cloth is
definitely higher at the point of removal from the
During this period in which the cloth is closely
packed and comparatively inactive in the box 26
and on the conveyor 21, the moisture provided by
the spray pipe 2| -and sucked into the fabric by
such an extent that the moisture left in the fab
ric as it is delivered to the sweat box is not sub
stantially more than one-third _the weight of the
Having thus described my invention and the 20
advantages thereof, I do not wish to be limited to
the details herein disclosed, otherwise than as set
forth in the claim, but what I claim is:--
dispersed and distributed throughout the fabric,
The method of final shripking of woolen and
worsted fabrics after all finishing operations such 25
as shearing, brushing and pressing have been
so that all of the fibers are uniformly moistened
performed thereon, which comprises moistening
the suction roll 22 and nozzle 23 is very evenly
and are exposed to uniform shrinkage conditions. the cloth, drawing the moisture into the cloth and
It is found by actual test that a sixty-yard piece ` leaving not substantially more than one-.third by
30 of fabric will shrink from one and a half to one
weight of water in the cloth, closely confining the
and three quarters yards or more before it leaves moistened cloth for a predetermined and substan
tial sweating period, slowly advancing the cloth
the conveyor 21. The subsequent required shrink
in folded condition on a conveyor without im
age of the cloth in the drier I0 is clearly'corre
mersion- -of said cloth and thereby maintaining
spondingly reduced. so that the full necessary ’ said cloth in substantially the same moistened
shrinkage is more easily and quickly accomplished condition and without the addition of moisture
and a more complete and satisfactory result is thereto for a further sweating period, and thereattained.
after drying said cloth, all of said steps being
By the use of my improved method and appa
performed successively and as parts of a continu-_'
ratus I not only substantially reduce the time and ous final shrinking operation. ~
labor over the previous practice, but I also attain
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