Improvements in Yarn Dyeing Machines.
Year: 1891

page_text: Date of Application, 1st Dec., 1891-Accepted, 2nd Jan., 1892
COMPLETE SPECIFICATION.
Improvements in Yarn Dyeing Machines.
I, LEONARD WELDON, of Amsterdam, in the County of Montgomery, in the
State of New York, United States of America, Manufacturer, do hereby declare
the nature of my 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 the class of dyeing machines in which a wheel or open-
work drum is pivoted to the dye liquor vat and carries the articles to be dyed and
in rotating on its pivots it intermittently dips said articles in the dye-liquor.
The invention consists firstly in an improved construction of the dipping wheel
specially designed to facilitate the attachment and detachment of the yarn sticks
to and from said wheel.
And secondly in novel devices for replenishing the dye-liquor vat with dye-liquor
and at the same time introducing the steam for heating said liquor in the vat in
such a manner as to guard against the direct impingement of the steam against the
yarn or articles in process of being dyed and also cause the dye-liquor to circulate
more thoroughly in the vat.
The invention is fully illustrated in the annexed drawing in which
Fig. 1 is a front elevation of a yarn dyeing machine embodying my invention.
Fig. 2 is a vertical transverse section on line y, y, Fig. 1 showing the spider arms
of one end of the dipping wheel, and the improved arrangement of the dye-liquor
supply pipe and steam-pipe.
Fig. 3 is an enlarged inner face view of a portion of the spider-arms of the
opposite end of the dipping wheel.
Fig. 4 is a transverse section on line a, a, Fig. 3.
Fig. 5 is an edge view of one of the spider arms which is provided with the
devices for locking the yarn sticks thereon, and
Fig. 6 is an enlarged detached sectional view of the connection of the steam pipe
to the dye-liquor feed pipe.
A denotes the vat containing the dye-liquor, and C the frame or wheel by means
of which the yarn in skeins is dipped into the dye-liquor. Said dipping frame or
wheel is provided with two or more sets of arms a and a for carrying between them
the yarn-sticks which have to be removable from the frame or wheel to allow the
yarn in skeins to be applied to and removed from said sticks. For that purpose the
arms a al may have the bearings h h for the ends of the yarn sticks of the form of
stationary sockets formed directly on said arms as shown in Fig. 2 of the drawing.
The other set of arms a a, however, I form with longitudinal channels, and insert
in the channels thereof longitudinally movable bars bbwhich are provided at' both
ends with bearings c c for the reception of the ends of the yarn-sticks d d. These
bearings I form with openings c c in their sides to allow the ends of the yarn
sticks to be slipped sidewise into the bearings, and in order to retain them in these
bearings I provide guards e e attached to the dipping-frame or its arms a a and
detached from the bearings cc and in such positions as to cause them to cover the
side-openings c c when the bar is in its requisite operative position on the frame
or wheel.
To apply the yarn-sticks to the dipping frame or wheel, the bars bb are to be
drawn longitudinally outward sufficiently to uncover the openings c' c', then the
yarn sticks are inserted with one end into the sockets h h of the arms a¹ a¹ and
passed with their opposite ends laterally through openings and into the
bearings cc of the bars bb and then said bars are to be pushed inward to their
requisite positions, and when this is effected the guards e e cover the openings c¹ cl
and thus retain the yarn sticks on the dipping frame or wheel.

page_text: Inasmuch as the skeins of yarn are of different lengths I render the inner yarn-
sticks adjustable in their distance from the outer yarn sticks by providing the inner
ends of the arms and bars bb with a plurality of bearings h h and cc at
different points in the length thereof.
To lock the bars to the frame or wheel so as to prevent their sliding length-
wise out of the channeled arms aa during the operation of the machine I connect
to said frame or wheel latches which are adapted to bear on the outer ends of
the bars and are preferably held in engagement with the same by means of
springs forcing the latches toward the arms at .
In the operation of the machine steam is admitted into the vat A to heat the dye-
liquor, which has to be replenished occasionally.
In order to cause said dye-liquor to thoroughly circulate through the vat and
thus render said liquor of a uniform color throughout and to also prevent the steam
from directly impinging the articles in process of being dyed, I resort to the
following construction of the vat and appliances connected thereto.
The bottom of the vat A. I form with a recess or well A' extending along one
side of the vat, and near the same side I place a partition M which extends from
near the top of the vat partway into the well A as shown in Fig. 2 of the drawing,
thereby forming a passage P from the upper part of the vat down along one side of
the vat and beneath the bottom thereof and thence upward into the main portion
of the vat. To prevent the dye liquor from rising again at the same side of the vat
I attach to the partition M a horizontal deflecting plate N which is a short distance
above the bottom of the rat and projects over the top of the well A' sufficiently to
form a passage partway toward the opposite side of the vat.
O represents an extra feed-tank, from which the vat A is replenished with fresh
dye-liquor. This tank communicates with the interior of the vat A near the top
thereof by a pipe 01. To the bottom of the tank O is connected a pipe R which
extends in a plane below the well A¹ and thence up to a pipe L to which it is
connected and which is extended lengthwise through the well 'A' and is perforated
in its side facing toward the opposite side of the vat A.
U denotes the steam-pipe which conducts steam into the vat to heat the dye
liquor therein. This pipe I terminate with a nozzle which is inserted into the
pipe at its junction with the pipe R as represented in Fig. 6 of the drawing and
thereby form an injector which forces the dye-liquor through the perforations of the
pipe L.
In emerging from the pipe L the dye-liquor and steam is deflected toward the
opposite side of the vat A by the plate N and is thus caused to circulate through
the vat and down through the passage P into the well A' as indicated by arrows in
Fig. 2 of the drawing.
The depressions of the well A' and pipe R form a trap which prevents the steam
from backing up and entering the tank O.
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 vat A formed with the well A', the partition M extending into said well,
and the deflecting plate N over the well, in combination with the perforated pipe L,
feed pipe R connected to the perforated pipe, and the steam pipe communicating
with the perforated pipe at its junction with the feed pipe as set forth and shown.
2. A yarn-carrying frame having bars provided with bearings for the ends of the
yarn-sticks and with openings in the sides of said bearings, and guards over said
openings and removable therefrom as set forth.
3. A yarn carrying frame having bars provided with bearings for the ends of the
yarn-sticks and with openings in the sides of said bearings, and guards over said
openings attached to the frame and detached from the bearings as set forth.
4. A yarn-carrying frame comprising longitudinally movable bars provided with
bearings for the ends of the yarn sticks and with openings in the sides of said

page_text: bearings, and guards attached to the frame and covering the aforesaid openings as
set forth.
5. A yarn-carrying-frame comprising longitudinally channeled arms, bars sliding
in said arms and provided with bearings for the ends of the yarn sticks and with
openings in the sides of said bearings, and guards on the aforesaid arms covering
the side-openings of the bearings, substantially as set forth and shown.
6. A yarn carrying-frame comprising longitudinally channeled arms, bars sliding
in said arms and provided with bearings from the ends of the yarn-sticks and with
openings in the sides of said bearings, guards on the aforesaid arms covering the
side-openings of the bearings, and a latch connected to the frame and engaging the
aforesaid bars to retain them in the channeled arms, substantially as described
and shown.
LEONARD WELDON.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.