AN IMPROVED AGITATOR AND BOILER FOR BLEACHING AND FINISHING PURPOSES
Year: 1885

page_text: I ALFRED WHOWELL of Burnden Bank, Great Lever, Bolton in the County of
Lancaster Bleacher's Manager, do hereby declare the nature of my Invention for
AN IMPROVED AGITATOR AND BOILER FOR BLEACHING AND FINISHING PURPOSES,"
to be as follows:-
My invention relates to improvements in the means employed for boiling cloth
in kiers for washing or bleaching purposes, and for boiling or agitating starch used
in the process of finishing, and consists in placing in a suitable position in an open
or closed cloth kier, or in a starch tub, a circular or other conveniently shaped
copper or other suitable metallic pipe perforated on the underside or otherwise.
The circular or other conveniently shaped pipe is supported in any convenient
way and attached to an upright pipe through which steam is fed from the boiler
and by which the boiling of cloth is performed; which in the case of boiling starch.
causes the same to circulate, thereby producing a perfect agitator which is essential
to produce starch in a liquefied state.
EDMUND CHADWICK,
Agent for the Applicant.
!
COMPLETE SPECIFICATION.
I ALFRED WHOWELL of Burnden Bank, Great Lever, Bolton in the County of
Lancaster, Bleacher's Manager, do hereby declare the nature of my Invention for
"AN IMPROVED AGITATOR AND BOILER FOR BLEACHING AND FINISHING PURPOSES,"
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
My invention relates to improvements in the means employed for boiling and
agitating starch used in the process of finishing, and consists in placing in a

page_text: suitable position in a starch tub, a circular or other conveniently shaped copper or
other suitable metallic pipe perforated on the underside or otherwise.
The circular or other conveniently shaped pipe is supported in any convenient
way and attached to an upright pipe through which steam is fed from a boiler, and
by which boiling and agitation is performed, which is essential to produce starch in
a liquefied state. Fig. 1 of the accompanying drawings is a sectional elevation of a
starch tub with my improvements applied, and Fig. 2 is a plan of the same with
the cover D removed.
A is the starch tub in which are placed the perforated pipes B made of copper or
other suitable metallic materials. These pipes are attached to the pipe C which
passes upwards and through the cover D to the tap E, by which steam is admitted
from the steam pipes F. The pipes B are provided with the holes G disposed on
the angle below the horizontal centre line, by which steam is forced in an angular
direction onto the bottom of the tub, causing a thorough circulation and agitation
of the starch under operation, thereby assuring perfect mixing which is essential
and necessary for finishing purposes. The ends H of the pipes B are closed so as
to distribute the outlet throughout the entire length of the same.
the
In another arrangement the pipes B are provided with the angular perforations G
on both sides which is necessary when placed in a large tub or kier as in Fig. 3.
To prevent the holes G being choked or the pipes B filled with starch or other
contents under operation when steam is shut off by the formation of a vacuum,
casing and plug of the tap E are provided with the air holes I and J respectively
as in Fig. 4, which admit air and thus destroys the vacuum. Fig. 5 is a section
through the centre of the tap E when open for the admittance of steam and closed
to the admittance of air.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
"
1. The respective combinations of improved agitator and boiler for bleaching and
finishing purposes, operating substantially in the manner described and as shewn
on the drawings.
2. The use of the pipes B provided with the perforations G disposed below the
horizontal centre line, constructed and operating substantially as and for the
purposes herein set forth.