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Патент USA US3084788

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April 9, 1963
Original Filed Feb. 5, 1960
nited States Patent 0 Uce
Patented Apr. 9, 1963
trough 13, a horizontal run 37 along the trough base
26 and an upwardly inclined leading run 35 to the upper
edge of the drum 17. The belt 34 traverses a horizontal
return run between the lower edges of the drums 14 and
Alvin B. Shockley, Baron, and James Teng, Parma,
Ohio, assignors to Nylonge Corporation, a corporation 5 17.
of Dhio
The electrode system includes a pair of longitudinally
Original application Feb. 5, 1960, Ser. No. 6,931, new
inwardly facing track de?ning metal channels 39 mounted
Patent No. 3,048,888, dated Aug. 14, 1962. Divided
in the upper edges of the trough side walls 24 and extend
and this application Dec. 24), 1961, Ser. No. 160,775
ing to points short of the side wall ends and terminating
2 Claims. (Cl. 193-—2)
10 in upwardly inclined directing strips. Suitably journalled
above the trough 13 adjacent to opposite ends thereof are
The present invention relates generally to improve
a pair of parallel transverse shafts 40 the opposite sections
ments in equipment for the manufacture of arti?cial
sponge and it relates more particularly to an improved
of ‘which are electrically separated by one or more in
sulator couplings. The leading sha?t 40 has affixed there
hopper associated with an apparatus for the continuous
coagulation and regeneration of a viscose sponge form_ 15 to a sprocket wheel 42 which is coupled by way of a
sprocket chain and a variable speed reducing unit to a
ing mass. This application is a divisional application of
drive motor. Mounted on and adjacent to opposite ends
the copending US. patent application, Serial No. 6,931,
of each of the shafts 40 are sprocket wheels 44, each
?led February 5, 1960, now Patent No. 3,048,888, August
set ‘of longitudinally spaced sprocket Wheels 44 being sub
14, 1962.
In the manufacture of arti?cial regenerated cellulose 20 stantially coplanar with a corresponding track 39. En
gaged and driven by each set of sprocket wheels 44 is a
sponge by the viscose process, a relatively green viscose
roller carrying sprocket chain 46 having an upper hori
of high viscosity is produced in the conventional manner
zontal return run and an advance run including a trailing
and is then admixed with reinforcing ?bers such as cut
downwardly inclined ?ight from the sprocket 44 to the
hemp or the like, and a granular pore forming material
such as sodium sulphate decahydr-ate. The resulting 25 track 39, a horizontal ?ight along the track 39 and an
upwardly inclined leading ?ight from the track 39 to the
sponge forming mass is thereafter deposited in large
molds or forms in various manners and the viscose coagu
lated, the cellulose regenerated and the pore forming
leading sprocket wheel 44.
Secured to each link of the sprocket chain 46 is an
electrode de?ning substantially rectangular metal plate 52
sponge material which is then washed, bleached, plas 30 which is coplanar with the corresponding supporting link.
material leached out to produce a block of the arti?cial
The electrodes 52 depend from the links Iwhich register
with the track 39 and extend substantially to the trough
base 26. The outer faces of the electrodes 52. slide along
metal plates located along the sides of the trough 13
sion of the ‘sponge mass containing molds in a hot salt
solution or an acid bath, heating the sponge mass in an 35 and the adjacent side vertical edges of successive elec
trodes are closely spaced or contiguous. The sprocket
autoclave or by passing an electric current therethrough.
ticized and otherwise treated, dried and cut to the desired
shapes. Many methods have been employed to e?ect the
coagulation and regeneration steps including the immer
These various coagulation processes are usually of a batch
nature and are highly time and labor consuming, expen
sive and often di?icult to control. Many continuous vis
chains 46 and hence the electrodes 52 are driven at a
linear speed slightly greater than the linear rate of advance
of the conveyor belt 34.
In order ‘to deposit the sponge forming mass into the
cose sponge coagulating processes have been proposed 40
trough 13 in a uniformly ?owing oriented state there is
but none of these have proven satis?actory and they are
located in the trough 13 adjacent its feed end a forwardly
generally limited to masses of small cross-section and
directed hopper 56. The width of the hopper 56 is slight
possess numerous other drawbacks and disadvantages.
It is therefore a principal object of the present inven 45 ly less than that of the trough 13 in which it is nested and
includes a rear vertical wall 57 projecting from a point
tion to provide an improved apparatus and method for
above the trough base 26 to a point above the trough 13.
the production of arti?cial regenerated cellulose sponge.
A further object of the present invention is to provide
an apparatus of the above nature characterized by its
ruggedness, simplicity, ease of operation and the uni
The hopper side walls include upper rectangular sections
58 located above the trough l3 and de?ning with a front
formity and high quality of the product produced there
lower sections 66 of the hopper side walls project for
wardly of the chute 6S and include a horizontal top edge
supporting a .top wall 61 and lower trailing edges to which
The above and other objects of the present invention
will become apparent from a reading of the following
description taken in conjunction with the accompanying
drawings wherein:
wall 59 and rear wall 57 a vertical feed chute 65.
is fastened a horizontal bottom Wall 63 located above the
trough base 26 and projecting forwardly of the chute 65.
The upper leading edges of side walls 66 are vertical and
are connected by a vertical front wall 64, the lower ends
FIGURE 1 is a top plan view of an improved apparatus
of the leading edges joining the bottom wall 63 by down
embodying the present invention; and
ward-1y rearwardly inclined edges 66.
FIGURE 2 is a sectional view taken along line 4—4 in
Supported between the side wall sections 60‘ are a plu
rality of vertically spaced horizontal ba?le plates 67
Referring now to the drawing which illustrates a pre
which are horizontal offset, the upper plates 67 being
ferred embodiment of the present invent-ion, there is pro
located at successively more forward ‘and overlapping
vided a continuous coagulation apparatus with which
position. The leading side edges 68 of the plate 67 com
the present improved hopper 56 is associated. The ap
verge to tapered transverse leading edges 70 which lie
paratus includes a conveyor belt 34 formed of cord rein 65 along a plane parallel to the plane of the wall edges 66.
forced rubber or other electrically insulating ?exible
Supported by the side wall sections 68 and depending from
the inclined edges 66 are a plurality of depending trans
material is engaged and driven by and extends between
versely extending guide plates 69‘ having horizontal bot
the drums 14 and 17 mounted on driven shafts 16 and 18.
The upper advance ?ight of the belt 34 traverses a trail 70 tom edges lying in a plane parallel to the plane of the
edges 66.
ing downwardly inclined run 36 from. the upper edge of
The sponge forming mass is introduced into the chute
the drum 14 to the base 26 of a longitudinally extending
65, ?ows downwardly and then forwardly along the direc
spaced horizontally extending ba?le plates disposed in said
tion of the bta?ies 67 and thence downwardly as guided
its viscosity, the advancing speed of the belt 34 and the
duct and terminating in longitudinally offset leading edges,
the leading portions of said ba?le plates being of lesser
width than the trailing portions thereof ‘and the leading
edges of successively higher baille plates being progressive
parameters of the hopper 56 are such that the mass is
dnawn at a slightly greater speed than its normal rate of
\ly more forward.
2. A mass orienting hopper including a horizontally
?ow through the hopper whereby to inhibit any turbulence
extending duet terminating in a downwardly forwardly
inclined dischange opening and provided at its trailing end
by plates 59 Where it is deposited upon the belt 34. It
should be noted that the head ‘on the sponge forming mass,
or disturbance of the orientation of mass deposited into
the trough.
with a feed ‘opening, a plurality ‘of transverse plates de
It should also be noted that by reason
pending from said discharge opening and terminating at
diiierent levels, and a plurality of veitioally spaced hori
zontally extending baf?e plates disposed in said duct and
terminating in longitudinally offset leading edges, the
of the con?guration of the baffles 67 there is a uniform
retardation of the mass flow in the hopper to insure the
uniform and oriented ?ow of the mass therethrough. The‘
lower edges of the plates 69 serve as doctor edges to
further maintain a uniform mass orientation.
While there has been described ‘and illustrated a pre
ferred embodiment of the present invention, it is, apparent
leading edges of successively higher baiile plates being
progressively more forward.
that numerous alterations, omissions and additions may
References Qited in the ?le of this patent
be made Without departing from the spirit thereof.
We claim:
1. A mass orienting hopper including a horizontally
extending duot terminating in a downwardly forwardly
inclined discharge opening and provided at its trailing
end with a feed opening and a plurality of vertically
Christian ____________ .._ Dec. 18,
MacMichael __________ __ Feb. 10,
Bardet _______________ __ Aug. 18,
Grist ________________ __ May 9,
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