Improvements in Apparatus for Dyeing, Bleaching, Washing, and Rinsing Wound Yarns.
Year: 1897

page_text: Date of Application, 30th Mar., 1897-Accepted, 1st May, 1897
COMPLETE SPECIFICATION.
Improvements in Apparatus for Dyeing, Bleaching, Washing, and
Rinsing Wound Yarns.
I, GUSTAV LINKMEYER of Herford, Germany, Dye Works Proprietor, do
hereby declare the nature of this invention and in what manner the game is to be
performed, to be particularly described and ascertained in and by the following
statement :-
The apparatus of this invention, having for object the intimate dyeing,
bleaching, washing and rinsing of yarns in the wound state, comprises a bath
cylinder with double acting piston therein, the movement of which is arrested
for a time at both ends of the cylinder whereby the liquid of the bath is caused
to pass through the wound yarn or cop at a reduced velocity. Further in this
inveution the cops or wound yarus are not, as hitherto, placed upon the bath
cylinder at right angles thereto but branching out therefrom obliquely upwards,
and are pressed firmly towards the cylinder by means of a casing which is slid
over the same from underneath so as to hold them firmly in place when under
treatment.
The apparatus of the invention is shewn in part sectional elevation in the accom-
pauying drawing.
a is the supporting frame of the apparatus to which frame is fixed a jacketted
bath cylinder & closed air tight at the ends and containing a piston c the travel
of which is arrested at each end of the cylinder for an interval of time the
duration of which is determined by the length of the curved slots in the
crauk crosshead 1. The latter guided by the slide surfaces is moved up and
down from the shaft g through the cranky' and this movement is transmitted
through piston rod e tu the piston c. The cylinder is provided around its
entire circumference with oblique perforations in which are placed the stems
of hollow perforated spindles carrying cops or wound yarns, by pressing them
down into the oblique perforations. The spindles and cops are then firmly secured
in place by sliding over them from underneath a casing m, whereupon they are
displaced somewhat more upwards, and in this way hold the casing fixed without
any further means of attachment. At the same time the weight of the casing m
presses the cops firmly into the cylinder so as to prevent their displacement
whilst under treatment.
The cylinder thus studded with cops together with the casing m is enclosed in a
readily removable tank i which is charged with suitable liquid to a height somewhat
above the upperinost position of the piston.
The piston being in motion the action is similar to that of a double acting pump,
for example, in the downward stroke of the piston the liquid of the bath passes
through the perforations e above the piston from the tank i into the cylinder 6,
whilst underneath the piston the reverse takes place, that is to say, the liquid is
forced from the cylinder b into the tank i. In this way the holes e¹ may be said
to replace the valve apertures of a double acting pump, and through said holes and
perforated hollow cop spindles a circulation of the liquid of the bath takes place
from the tank i through the wound yarn into the cylinder and inversely.
o is a tube bent rectangularly at its lower end and provided with a cock o² for
the supply of fresh liquid direct into the cylinder b whilst tube o provided with a

page_text: cock o' serves for the escape of air when auch supply is being effected. o' is a
check valve serving for the supply of liquid from the tank i to the cylinder.
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
Apparatus for dyeing, bleaching, washing and rinsing yarus in the wound state,
characterised by a cylinder located in a tank and having yarn cops placed obliquely
on its circumference said yarn cops being surrounded and firmly held in place by a
casing, and the piston of said cylinder arrested at each end of its stroke for a certain
interval of time in order to reduce the velocity of suction or passage of the liquid
through the yarn, Fubstantially as described and shewn.
Dated this 30th day of March 1897.
H
CAPITAINE & VON HERTLING,
89 Chancery Lane, London, W.C., Agents for the Applicant..