IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR SIZING AND DRESSING YARN OR THREAD
Year: 1876

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields, in the
County of Middlesex, Gentleman, for the Invention of "IMPROVEMENTS IN OR
CONNECTED WITH APPARATUS FOR SIZING AND DRESSING YARN OR THREAD."
A communication from abroad by Eugène Dollander, of Paris, in the Republic
of France, Manufacturer.
Sealed the 14th October 1876, and dated the 24th April 1870
PROVISIONAL SPECIFICATION left by the said John Henry Johnson at the
Office of the Commissioners of Patents on the 24th April 1876.
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR SIZING AND
DRESSING YARN OR THREAD." A communication from abroad by Eugène Dollander,
of Paris, in the Republic of France, Manufacturer.
This Invention consists in effecting the drying of the yarn or thread in. dressing
or sizing machines by combining the hot air system at present in use with a
peculiar arrangement of plates heated by steam over which the yarn or thread is
drawn by friction, whereby it becomes thoroughly dried.
In carrying out this Invention the central longitudinal portion of the machine
is employed in effecting the drying of the threads, the extremities being of ordinary
construction. The threads issue from the roll box at one end of the central
portion, are conducted to the front of the machine, and pass over a fluted roller,
and thence backwards and forwards over other fluted rollers. From the last fluted
roller the threads pass by friction over steam plates, two of which are by preference
employed slightly convex or rounded in form, whence they are conducted over a
series of rollers, and finally over a registering roller. Serpentine pipes, composed
by preference of drawn iron or copper, are employed to receive the steam from the
plates. These plates and pipes communicate at their extremities with a purger
or blow off for the discharge of the water of condensation. The steam conducted
from the boiler by a steam pipe passes through a steam regulator, and is distributed
by a suitable pipe at any pressure which may be varied as required by means of
the regulator into the two plates. Each plate is provided with an air cock, which
is opened when the steam is first admitted to allow the air to escape which is
driven out by the steam; this cock is again opened when the work is finished at
the time when the steam cock is closed.
Price G71

page_text: The operation is carried out in the following manner :-On passing from the
first roller to the first fluted roller and from the latter to the second fluted roller,
the threads already receive a certain amount of the heat given off by the plates.
In passing over the other rollers the threads receive the heat from the serpentine
pipes, which heat or heated air is agitated by means of fans provided for that
purpose. The rollers are fluted in order to prevent the wet threads from adhering
inconveniently to their surfaces. By the time the threads reach the first plate
they have already attained a sufficient degree of dryness to prevent any liability
to become flattened, and in their passage by friction over the two plates the drying
process is completed. Another fan is also provided near one extremity of the
apparatus, which additional fan serves to create a current of air to carry off the
moisture of the threads, so that according to this system the threads are dried by
hot air and by friction over the plates, which are slightly convex or rounded.
It is obvious that the details of the machine may be greatly modified without
departing from the principle of the Invention.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said John Henry Johnson in the Great Seal Patent Office on the 20th October
1876.
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN OR CONNECTED WITH APPARATUS FOR SIZING AND
DRESSING YARN OR THREAD." A communication from abroad by Eugene Dollander,
of Paris, in the Republic of France, Manufacturer.
The said Invention consists in effecting the drying of the yarn or thread in sizing
and dressing machines by combining the hot air system at present in use with a
peculiar arrangement of plates heated by steam, over which the yarn or thread is
drawn in frictional contact, whereby it becomes thoroughly dried.
And in order that the said Invention may be fully understood, I shall now
proceed more particularly to describe the same, and for that purpose shall refer to,
the two Figures on the annexed Sheet of Drawings, the same letters of reference
indicating corresponding parts in both the Figures.
Figure 1 of the accompanying Drawings represents a side elevation of the
machine, and Figure 2 is a corresponding longitudinal section of the same.
The part included between A and B for effecting the drying of the threads forms
the subject of this Invention, the extremities B, C, and A, D, being of ordinary
construction. The threads issue from the roll box at a, are conducted to the
front of the machine and pass over the fluted roller b and thence over the rollers c,
d, e, and f. From of the threads pass in frictional contact over the steam plates g
and, which are slightly convex or rounded, whence they are conducted over the
rollers i, j, and k, and finally over the registering roller 1; m, m, m, are worms or
serpentine pipes composed by preference of drawn iron or copper which receive
the steam from the plate h. n, m, n, are similar pipes which receive the steam
from the plate g. These plates and pipes communicate respectively at their ex-
tremities o, P
with a purger or blow-off apparatus 7 for the discharge of the water
of condensation.
For the high numbers from 8 to 20 which require a greater drying power two
steam plates exactly similar in dimensions to the upper plates g, h, with the
exception that they are made of a straight in lieu of a curved form, are substituted
for the two worms or series of serpentine pipes m, n. The thread passes over these
plates, touching them lightly. before pressing upon the other curved plates.
The steam conducted from the boiler by a piper passes through a steam regu-
lator s, and is distributed by a pipe t at any pressure (which may be varied as
required by means of the regulator) into the two plates at and v.
Each plate
is provided with an air cock which is opened when the steam is first admitted to

page_text: allow the air to escape, such air being expelled by the steam; this cock is again
opened when the operation is completed at the time when the steam cock is closed.
The operation of drying the thread is carried out in the following manner, vide-
licet-On passing from the roller a to the fluted roller b, and from 6 to c, the
threads receive a certain amount of the heat given off by the plates g and h; from
d to e and from e to f the threads receive the heat from the serpentine pipes m, n,
which heat or heated air is agitated by means of fans x and y. The rollers 'b, c, d,
e, and f, over which the threads pass are fluted in order to prevent the wet threads
from adhering inconveniently to their surfaces. By the time the threads reach the
plate g they will have attained a sufficient degree of dryness to prevent any liability
of their becoming flattened, and in their passage over the plates g and h in fric-
tional contact therewith the drying process is completed. The fan also serves to
create a current of air for carrying off the moisture of the threads, so that according
to this system the threads are dried by heated air and by friction over the plates g
and h, which are slightly convex or curved.
The plates do not require to be constructed in a special manner, no detailed
description of their construction is therefore necessary; they may consist of ordinary
steam plates, such, for example, as those used in printing, with the exception that
they are slightly convex or curved so as to cause the threads to adhere slightly on
their passage in frictional contact with the plates.
It is obvious that the details of the machine may be greatly modified without
departing from the principle of the Invention.
Having now described and particularly ascertained the nature of the said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider to be novel and original,
and therefore claim as the Invention secured to me by the herein-before in part
recited Letters Patent is, the employment in sizing and dressing machines of plates
heated by steam, over which the yarn or thread is drawn in frictional contact,
substantially as and for the purposes herein-before described.
In witness whereof, I, the said John Henry Johnson, have to this my Speci-
fication set my hand and seal, the Nineteenth day of October One thousand
eight hundred and seventy-six.
J. HENRY JOHNSON. (L.S.)