Improvements in the Treatment of Fabrics Coated with Rubber or the like Substances.
Year: 1897

page_text: Improvements in the Treatment of Fabrics Coated with Rubber
or the like Substances.
We, PILIP ARTHUR BIRLEY, of Cambridge Street, Manchester, Manager, and
CHARLES MACINTOSH & Co. LIMITED, of Cambridge Street, Manchester, India-
rubber Manufacturers, do hereby declare the nature of this invention to be as
follows:-
-
Our said invention relates to improvements in the treatment of fabrics coated
with rubber or the like substances.
The object of our said invention is to stretch the fabric in the direction of its
width while in or on the spreading machine.
Woven fabric which has been bleached dyed or similarly treated after weaving
is of less width than when it leaves the loom.
If such fabric is stretched in the direction of its width prior to being coated
with rubber solution or similar compounds it again contracts in the spreading
process.
If the cloth with its coating be stretched after spreading in a dry state the
coating is broken up or disintegrated.
According to our said invention we apply to a spreading machine stentering
chains or other like appliances for stretching cloth in the direction of its width
so as to seize the cloth immediately behind the gauge or doctor which regulates
the thickness of the coating. The said stentering chains which are preferably
armed with pins travel along the drying table so as to stretch and hold the
cloth distended during the process of drying.
By this procedure the stretch is imparted to the cloth while the solution is still
in an undried state and owing to the cloth being kept distended as the coating
dries the stretch is rendered permanent without disintegrating or otherwise
damaging the coating.
Adjustments are provided in combination with the stretching and spreading
appliances for readily varying the amount of stretch.
1000
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicants.

page_text: Improvements in the Treatment of Fabrics Coated with Rubber
or the like Substances.
We, PHILIP ARTHUR BIRLEY, of Cambridge Street, Manchester, Manager, and
CHARLES MACINTOSH & Co. LIMITED, of Cambridge Street, Manchester, India-
rubber Manufacturers, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement: —
Our said invention relates to improvements in the treatment of fabrics coated
with rubber or the like substances.
The object of our said invention is to stretch the fabric in the direction of its
width while in or on the spreading machine.
Woven fabric which has been bleached dyed or similarly treated after weaving
is of less width than when it leaves the loomi.
'
If such fabric is stretched in the direction of its width prior to being coated
with rubber solution or similar compounds it again contracts in the spreading
process.
If the cloth with its coating be stretched after spreading in a dry state the
coating is broken up or disintegrated.
According to our said invention we apply to a spreading machine stentering
chains or other like appliances for stretching cloth in the direction of its width
so as to seize the cloth immediately behind the gauge or doctor which regulates
the thickness of the coating. The said stentering chains which may be armed
with pins or as we now find better clips or clamps travel along the drying table
so as to stretch and hold the cloth distended during the process of drying.
By this procedure the stretch is imparted to the cloth while the solution is still
in an undried state and owing to the cloth being kept distended as the coating
dries the stretch is rendered permanent without disintegrating or otherwise
damaging the coating.
The accompanying drawings to which reference is herein made illustrate the
general arrangement of a machine suitable for carrying into practice our said
invention.
In the said drawings Figure 1 is a plan and Figure 2 is a side elevation.
The cloth to be coated is contained on a roller a whence it passes in the direction
of the arrows over a series of steam heated chests b or other appliances for drawing
off the solvents of the coating and drying it. The machine may be of any con-
venient length.
After passing through the machine the dried fabric is received
on a roller c or may be otherwise disposed of.
As it leaves the roller a the cloth is drawn over the spreading beam d under
a gauge or doctor d' where the coating of rubber or the like material is applied
in the usual manner.
Running lengthwise of the machine are guide rails d' which may be caused to
approach or diverge from each other by setting shafts applied at convenient
intervals as at d. The setting shafts have right and left hand screw threads
engaging in nuts at d. Endless chains operated by the chain wheels d³ travel
forwards along the guide rails d and backwards over the guide pulleys d. The
chains carry stentering clips (some of which are shown at d³) or pin links of
the kind commonly used in cloth stretching machines. We prefer to use clips as
less liable to damage the cloth.

page_text: As the coated cloth leaves the spreading doctor d' the edges are pressed by
pressing discs d³ on to the pins of the travelling chains which then keep the cloth
distended over the steam heated chests.
By means of the setting shafts do the guide rails are set in such a manner
as to increasingly diverge from each other so that as the coated cloth advances
the chains carrying it are drawn asunder and the intervening cloth is stretched
in the direction of its width and kept in a stretched state during the drying
process as hereinbefore described.
The usual means adopted in coating machines for varying the thickness or
width of the coating may be adopted. The longitudinal tension or drag on the
cloth may be obtained by tension straps, springs or weights as is usual in spreading
machines as heretofore constructed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. The process of coating fabrics with rubber or the like material consisting
in spreading the coating and then subjecting the fabric to lateral distension while
the coating is drying substantially as and for the purpose set forth.
2. A combined spreading and stretching machine for applying a coating of
rubber or the like material and stretching the fabric or holding it distended while
the said coating is drying substantially as set forth and shown.
3. The combination with a spreading and drying machine for coating fabrics
with rubber or the like material of divergible chains for seizing and holding the
edges of the fabric while drying after coating substantially as and for the purpose
set forth and shown.
D
Th
at Cantamlion 1000
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicants.