An Apparatus for the Continuous Treatment of Size by Boiling.
Year: 1898

page_text: Date of Application, 2nd Mar., 1898-Accepted, 20th May, 1898
COMPLETE SPECIFICATION.
An Apparatus for the Continuous Treatment of Size by Boiling.
I, AUGUST STEPHAN, of House No. 30, Breitenbach, near Munster, Upper
Alsatia, in the German Empire, Manufacturer, 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:
This invention relates to an apparatus for the continuous preparation of size,
in which the manufacture of the latter is not effected by boiling direct with
steam mixed with the size as is done at present, so that the weakening of the
size by dilution is avoided. The apparatus further serves to render the prepara-
tion of the size one continuous operation, the raw size being continuously pumped
into a closed boiler having double walls. The boiler is heated by steam which
is introduced between the walls, so that the size is brought to the required tempera-
ture under pressure in order to be afterwards continuously fed into the size trough.
This apparatus allows of the quantity of the material to be fed into the size trough
to be accurately measured, so that the same is adequate to the quantity of yarn
to be treated.
In order that this invention may be the better understood, I now proceed to
describe the same with reference to the accompanying drawings and to the letters
marked thereon.
Figure 1 is a sectional view of the apparatus in combination with a pump and
meaus for driving the mixing apparatus.
Figure 2 is a detail part sectional view of the automatic discharge valve.
The boiler R closed at all sides and surrounded by a double wall serves for the
preparation of the size, and is providing with a mixing device operated by the
axle V.
The boiler R is heated by steam introduced through the pipe G into the space
enclosed by the double walls so that the steam does not come into direct contact
with the size, which latter is thus always kept at the same strength. This arrange-
ment allows also of a better regulation of temperature, than if the steam were
introduced direct.
The raw material is fed into the boiler R by the pump Z, through the tube Y.
The boiled size passes into the size trough through the tube H, being compelled to
pass through the automatic discharge valve J, which is introduced into the pipe;
this discharge valve allows of the maintenance of the pressure of the size in the
boiler within the desired limits.
The three way cock N admits of the size being fed into the size trough either
A valve K inserted into the pipe
through the tube m, or through the tube L.
service below the discharge valve J, allows of the closing of the pipe service in
order to examine the valve and service pipe in case the discharge valve should
not act.
This invention effects a great saving of steam, because the latent heat can
in this case be utilized much better than in ordinary methods when steam passes
through the size in the size trough without pressure. Further the size can be
always obtained of constant strength and composition, and it may be fed con-

page_text: tinuously into the size trough according to requirements. The boiler R which
serves for the preparation of the size, may be emptied direct through the tap r
if desired.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
An apparatus for the continuous preparation of size or similar substance, con-
sisting of a closed steam jacketed boiler a pump for pumping the material into
the boiler under pressure and a discharge pipe from the boiler fitted with a loaded
discharge valve to maintain a pressure within the boiler substantially as described.
Dated this 2nd day of March 1898.
FELL & JAMES,
Agents for the Applicant.