Improvements in Bleaching, Dyeing, and otherwise Treating Yarn in Cops and the like, and Fabrics in Bales, and Apparatus therefor.
Year: 1895

page_text: Date of Application, 4th Oct., 1895-Accepted, 16th Nov., 1895
COMPLETE
SPECIFICATION.
Improvements in Bleaching, Dyeing, and otherwise Treating Yarn
in Cops and the like, and Fabrics in Bales, and Apparatus
therefor.
1, NEWNHAM BROWNE, of 73 Cheapside, in the City of London, Chartered
Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed which has been communicated to me by
August Alfred Vogelsang of Dresden in the Empire of Germany, Engineer, to be
particularly described and ascertained in and by the following statement :-
In all methods hitherto practiced in dyeing, bleaching, or boiling yarn reeled
upon cops, bobbins or the like, the yarn is exposed to various injurious effects
which produce loss of yarn. This takes place, for instance, when the bobbins or
spools are slipped upon the spindles or when they are treated in the centrifugal
hydro-extractor for the removal of the liquid in which the yarn was bleached, dyed
or boiled.
The upper tapering ends of the cops or bobbins are most liable to damage as the
taper parts are least capable of resistance. For the purpose of increasing
the resisting capacity of these parts and to diminish the loss of yarn produced by
damage to the taper ends, the bobbins or the like have been slipped upon spindles
during the operation of bleaching, dyeing or boiling.
This reduces the loss of yarn but on the other hand the placing of the bobbins or
cops on the spindles and their subsequent removal therefrom, cause so much labour
that the cost thereby caused equals the loss of yarn.
The present invention relates to a new method of bleaching, dyeing or boiling of
yarns spooled or reeled on cops, bobbins and the like which not only reduce the
loss of yarn further than could heretofore be done but also saves labour, thereby
economising the time necessary for the said operations.
This method is chiefly characterised as a new method of packing the cops or the
like for bleaching dyeing or boiling. The new packing consists in this that
the cops or the like resting on their ends enclosing the cop tubes are placed upright
(as shown in the drawings) in separate layers, the layers being kept separate in the
apparatus during the operation of dyeing bleaching or boiling.
By packing the cops in separate layers their injury by weight or pressure is
avoided.
Their upright position presents several advantages. First that the point, which
is particularly liable to damage, is entirely free and therefore not likely to suffer
injury that would cause the loss of yarn; the lower end, is strengthened by the
cop tube forming the bearing surface in this method of packing. Moreover
the liquid with which the yarn is treated as well as the drying air freely and
rapidly penetrate within the cop, although they may not be under pressure, as they
obtain access not only from the outside but also through the hollow left by the
spindle within the cop, and it is clear that the more rapidly the liquid penetrates
through the cop, the more rapidly will the bleaching or dyeing or the like be
completed.
The apparatus for this manner of packing consists as shown in Fig. 1 of the drawings
(in section) of cases a with sieve-bottoms s.
These cases with the cops or the like packed therein are placed one above the
other in any of the well known apparatus for bleaching, dyeing or boiling the yarn,
see Hie •)

page_text: The liquid admitted from above in the form of spray first penetrates the cops in
the top-case. The liquid dripping off these is, by the sieve bottom s divided into a
fine spray uniformly flowing upon the next layer and so on.
The same arrangement may be used with advantage for bleaching or dyeing
yarn in reels, or of fabric in bales. These also if packed in cases such as
described, and in separate layers will rapidly be penetrated by the liquids and
therefore quickly bleached or dyed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondent I declare that what I claim is :-
For the purpose of bleaching, dyeing, boiling or otherwise treating yarn wound
into cops, bobbins, reels or the like.
1. A method for packing the cops, spools or the like characterised by placing
the cops, bobbins or the like vertically without spindles and in separate layers so
as to protect the same against injury that would cause loss of yarn.
2. The apparatus for carrying into effect the method indicated in Claim 1
consisting of cases a with sieve-bottoms s, said cases being capable of being set up
one above the other.
Dated the 4th day of October 1895.