IMPROVEMENTS IN APPARATUS FOR FORCING SIZE OR OTHER GLUTINOUS SUBSTANCES THROUGH PIPES TO SUPPLY MACHINES PROVISIONAL SPECIFICATION
Year: 1863

page_text: LETTERS PATENT to James Eastwood, of Blackburn, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN APPARATUS FOR FORCING
SIZE OR OTHER GLUTINOUS SUBSTANCES THROUGH PIPES TO SUPPLY MACHINES
PROVISIONAL SPECIFICATION left by the said James Eastwood at the
Office of the Commissioners of Patents, with his Petition, on the 21st
December 1868.
I, JAMES EASTWOOD, of Blackburn, in the County of Lancaster, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN APPARATUS FOR.
FORCING SIZE OR OTHER GLUTINOUS SUBSTANCES THROUGH PIPES TO SUPPLY MACHINES
FOR SIZING YARNS, CLOTHS, OR OTHER MATERIALS," to be as follows:-
This Invention relates chiefly to the kind of apparatus called "Eastwood's
compound mixing apparatus, for which Letters Patent were granted to
William Pollitt and James Eastwood, the 22nd September 1855, No. 2125,
for preparing size or other glutinous substances, and consists in an improved
mode of returning the surplus size forced into the feed pipes supplying machines
for sizing purposes into the cavity or boiling pan in the following manner:

page_text: The size is drawn from the boiling pan by a pump, and forced by the
same into a supply pipe which feeds the machines for sizing purposes.
As the quantity of size necessary is subject to variation, and the pump
continues to inject or force into the supply pipe always the same quantity, it
is necessary to provide an outlet for the surplus. In the ordinary manner
this is effected by connecting a return pipe to the farthest extremity of
the supply pipe, which returns the surplus to the boiling pan; this mode
necessitates a considerable length of piping, and the size in its passage through
is cooled.
My improvements consist in fixing a short return pipe as near as convenient
to the force pump leading direct into the boiling pan, and placing a valve in
this return pipe which is kept closed by means of a weighted lever or spring
which can be so adjusted that when the pump injects more size than required
into the supply pipe, and consequently exerts an increased pressure against the
valve, the valve opens and allows the surplus size to pass into the boiling pan ;
as soon as the pressure is lessened the valve closes again.
Instead of a valve an arrangement of pipes similar to the safety pipes used in
boilers may be used, a pipe, bent similar to a syphon pipe and ascending higher
than the level of the supply pipe has a return pipe into the boiling pan, the
supply pipe is thus kept full by the pressure of the height of the column of size
above its level; any increase in supply would raise the column of size in the
ascension or syphon pipe, and when it arrived to its highest point at the bend
the surplus would fall down the return pipe into the boiling pan.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Eastwood in the Great Seal Patent Office on the 21st
June 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
EASTWOOD, of Blackburn, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of December, in the year of our Lord
One thousand eight hundred and sixty-three, and in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said James Eastwood, Her special licence that I, the said James
Eastwood, my executors, administrators, and assigns, or such others as I,
the said James Eastwood, my executors, administrators, and assigns, should

page_text: at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention för "In-
PROVEMENTS IN APPARATUS FOR FORCING SIZE OR OTHER GLUTINOUS SUBSTANCES
THROUGH PIPES TO SUPPLY MACHINES FOR SIZING YARNS, CLOTHS, OR OTHER
MATERIALS," upon the condition (amongst others) that I, the said James
Eastwood, my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly, describe
and ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
"
NOW KNOW YE, that I, the said. James Eastwood, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-.
formed, to be particularly described and ascertained in and by the following
statement :-
This Invention relates chiefly to the kind of apparatus called Eastwood's
compound mixing apparatus for preparing size or other glutinous substances,
and consists in an improved mode of returning the surplus size forced into the.
feed pipes supplying machines for sizing purposes into the boiling vessel in the
following manner :-
The size is drawn from the boiling vessel by a pump and forced into a
supply pipe which feeds the machine for sizing purposes. As the quantity of
size necessary is subject to variation, and the pump continues to inject or force
into the supply pipe always the same quantity, it is necessary to provide an
outlet for the surplus. In the ordinary manner this is effected by connecting
a return pipe to the farthest extremity of the supply pipe, which returns the
surplus to the boiling vessel, this mode necessitates a considerable length of
piping, and the size in its passage through is cooled.
My improvements consist in fixing a short return pipe as near as convenient
to the force pump. leading direct into the boiling vessel, and placing a valve
in this return pipe which is kept closed by means of a weighted lever.
or spring, which can be so adjusted that when the pump injects more size
than required into the supply pipe, and consequently exerts. an increased
pressure against the valve, the valve opens and allows the surplus size to
pass into the boiling vessel; as soon as the pressure is lessened the valve closes

page_text: Instead of a valve an arrangement of pipes similar to the safety pipes used
in boilers may be used, a pipe bent similar to a syphon pipe and ascending
higher than the level of the supply pipe has a return pipe into the boiling
vessel, the supply pipe is thus kept full by the pressure of the height of the
column of size above its level; any increase in supply would raise the
column of size in the ascension or syphon pipe, and when it arrived to the
highest point at the bend the surplus would fall down the return pipe into the
boiling vessel.
In order more distinctly to illustrate my Invention, and the practical appli-
cation thereof to the purpose above. mentioned, I have attached to these
presents a Sheet of Drawings illustrative thereof (drawn about half full size),
in which Figure 1 shews the use and application of the valve; and at Figure 2
is shewn the means or method of effecting the same purpose by the use of pipes
herein-before mentioned, but I prefer the use of the valve, being a neater
arrangement.
At A, Fig. 1, is shewn the boiling vessel B, the pipe by means of which
(and the ordinary pump) size is drawn from the bottom of the vessel A and.
forced through and along the pipe C to the sizing machine. Should the pump
force or inject more size than required the increased pressure through the
return pipe D will by pressure on the valve E raise the lever and weight F,
thus opening a passage for the discharge of surplus size by way of and
through the pipe G back to the boiling vessel A.
At Fig. 2 is shewn the boiling vessel A, from which size is drawn and forced
by pump.through the pipe B forward by the pipe C to the sizing machine;
at D is shewn the return pipe, which is kept nearly full by the pressure of the
height of the column of size in the supply pipe C; any increase of pressure in
the pipe B will raise the column of size in the pipe D, and when it arrives to
the bend the surplus is discharged by the pipe D¹ into the boiling vessel A.
It will be evident that the pipes above described may be made of any
length or height required, such length or height determining at what pressure
on the supply pipe size will be returned to the boiling vessel.
Having thus fully described the nature and particulars of my said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that I claim as my Invention, and which I believe to be new
within this realm is,-.
Firstly, the use of the valve worked by lever and weight or by a spring, and
the short return pipe for the purpose herein set forth.
Secondly, the peculiar arrangement of piping shewn at Fig. 2 of the Drawings,

page_text: or any mere modification of the same, acting in substantially the same or a
similar manner.
In witness whereof, I, the said James Eastwood, have hereunto set my
hand and seal, this Eighteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-four.
Signed and sealed by the within-
named James Eastwood, in
the presence of
RICHARD CHARLESWORTH,
Land Surveyor,
Blackburn.
JAMES EASTWOOD. (L.B.)