IMPROVEMENTS IN OR RELATING TO THE BOILING PANS AND FEED OF SIZING MACHINES "
Year: 1883

page_text: LETTERS PATENT to William Briggs and Ralph Taylor both of Darwen in the
County of Lancaster, for an Invention of "IMPROVEMENTS IN OR RELATING
TO THE BOILING PANS AND FEED OF SIZING MACHINES
"
PROVISIONAL SPECIFICATION left by the said William Briggs and Ralph
Taylor at the Office of the Commissioners of Patents on the 13th October
1883.
WILLIAM BRIGGS, and RALPH TAYLOR, both of Darwen in the County of
Lancaster IMPROVEMENTS IN OR RELATING TO THE BOILING PANS AND FEED OF
SIZING MACHINES
The object of our Invention is to place the valve through which size enters the
boiling pan, on the outside of the pan, and to connect this valve and the valve,
which admits size from the boiling pan to the sizing trough, to the float in the
sizing trough, in such manner that the action of the valves is simultaneous, and a
nearly constant level of size is maintained automatically in the boiling pan and
sizing trough
In performing our Invention we employ a boiling pan of the usual construction
into which the size is pumped through a pipe connected to the size pump in the
ordinary manner, but we place the valve to regulate the admission of size outside
the pan instead of inside the pan, and near the valve which regulates the flow of
size from the boiling pan to the sizing trough. Both these valves are connected
by a lever or levers or in any convenient manner to the float roller in the sizing
trough and are thus opened or closed simultaneously, as the level of the size in the
sizing trough varies. An equable flow of size to and from the boiling pan is thus
maintained.
We prefer to feed the boiling pan with size at a point near the bottom, and place
the pipe to convey the size to the sizing trough at a higher point which insures
the size leaving the pan in a boiling state.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Briggs and Ralph Taylor in the Patent Office on the
10th April 1884.
WILLIAM BRIGGS and RALPH TAYLOR, both of Darwen, in the County of
Lancaster "IMPROVEMENTS IN OR RELATING TO THE BOILING PANS AND FEED OF
SIZING MACHINES
"
The object of our Invention is to place the valve or tap through which size
enters the boiling pan on the outside of the pan and to connect this valve and the
valve or tap which admits size from the boiling pan to the sizing trough, to the
flcat in the sizing trough, in such manner that the action of the valves or taps is
simultaneous and a nearly constant level of size is maintained automatically in the
boiling pan and sizing trough.
In performing our Invention we employ a boiling pan of the usual construction
into which the size is pumped through a pipe connected to the size pump in the
ordinary manner, but we place the valve or tap to regulate the admission of size
outside the pan instead of inside the pan and near the valve or tap which regulates
the flow of size from the boiling pan to the sizing trough.
Both these valves or taps are connected by a lever or levers in any convenient.
manner to the float roller in the sizing trough, and are thus opened or closed
simultaneously, as the level of the size in the sizing trough varies. An equable
flow of size to and from the boiling pan is thus maintained.
We prefer to feed the boiling pan with size at a point near the bottom and place
the pipe to convey the size to the sizing trough at a higher point which insures the
size leaving the pan in a boiling state.
And in order that our Invention may be fully understood and readily carried
into effect we will proceed to describe the accompanying Sheet of Drawings,
reference being had to the figures and letters marked thereon.
Figure 1 is an end elevation of a boiling pan and sizing trough to which our
Improvements are applied. Fig. 2 is a side elevation of the same, and Fig. 3 is a
sectional plan of the pan.
a is the boiling pan of ordinary construction supplied with steam and provided
with a pressure gauge as usual: 6 is the pipe connected to the size pump, (not
shown); c is the valve, or tap, which when open allows the size to pass through
the pipe d into the lower part of the boiling pan at e: the boiling size passes from
the pan a through the pipe f, angle tap g, valve or tap h, and pipe i into the sizing
trough j k is the float roller which rises and falls with the size in the trough j,
and communicates motion by a link l, lever m, bar n, and levers c¹ and h¹ to the
valves or taps c and h, opening them when the size falls below a certain level in
the sizing trough and closing or partially closing the valves or taps when the size
rises in the sizing trough. The angle tap g is a three way tap and has a hollow
plug through which size may pass to a small tap 8 from which size may be drawn
for testing and for other purposes: o is a stop valve to close the lower end of the
pipe d and keep the size from the pan a and p is a stop valve or tap to close the
pipe and keep the size from the sizing trough j: q is a valve or tap through
which unboiled size may pass from the pipe b to the sizing trough ; when the
valves or taps g and o are closed.
By the use of our Invention an equable flow of size to and from the boiling pan
is insured and by placing the valve or tap c outside the boiling pan and arranging
it so as to work in connection with the valve or tap h as described we are enabled
to dispense with the ball and tap or other self-acting gear hitherto employed

page_text: inside the boiling pan and so save the time that has hitherto been lost and the
expense that has been incurred in opening the pan when the valve is out of order.
Having stated the nature of our Invention and described the manner of performing
the same
We declare that what we claim is-
1. The improved apparatus for regulating the flow of size to and from the
boiling pan automatically, substantially as and for the purposes herein described
and shown.
2. In apparatus for boiling size the substitution of an external valve or tap c
for the internal ball tap commonly used for regulating the admission of raw size
to the pan and the arrangement of the pipes and valves or taps so that the raw
size is fed into the pan near the bottom and the boiled size is discharged from a
point near the top as and for the purposes herein specified.
In witness whereof we the said William Briggs and Ralph Taylor have hereunto
set our hands and seals this eighth day of April One thousand eight hundred and
eighty four.
WILLIAM BRIGGS (LS.)
RALPH TAYLOR
(L.S.)