Improvements in Apparatus for Dyeing Yarns and Slubbings or Rovings, or otherwise Treating the same with Liquids.
Year: 1894

page_text: Date of Application, 29th May, 1894
Complete Specification Left, 27th Feb., 1895-Accepted, 20th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Dyeing Yarns and Slubbings or
Rovings, or otherwise Treating the same with Liquids.
I, JOHN PRITCHARD, of the Firm of Kemp Blair and Company, Dyers, of
Gala Dye Works, Galashiels, in the County of Selkirk, North Britain, do hereby
declare the nature of this invention to be as follows, that is to say :-
My said invention has for its object to improve the construction and operation of
apparatus for dyeing woollen or other yarns, slubbings or rovings or for treating the
same with liquids.
In carrying out my invention according to one modification I employ a vat in
the form of a semi-cylindrical trough, having in its axis a rotating shaft on which
are fixed two or more main frames or sets of radial arms carrying at their outer
parts smaller frames provided with rods or bars for carrying the yarns, slubbings
or rovings in the hank form. Each smaller frame has end disks of a rhomboidal
form, and the rods or bars are arranged on them so that when moved by the
rotation of the shaft they are carried through the liquid in courses with which the
portions of the hanks extending from rod to rod are nearly coincident. Each
smaller frame is provided with two or more pairs of bars, with which arrangement
the hanks at any time nearer the main shaft necessarily have shorter courses
through the liquid than those further out; but to prevent inequality in the dyeing
or other results from such difference in the distances from the shaft the smaller
frames are arranged to be turned half round at suitable intervals so as to reverse
the positions of the several hanks and make the outer ones inner and vice versa.
Any convenient mechanism may be applied for this purpose. In one simple
arrangement each smaller frame is on a shaft fitted to turn in bearings on the main
frame; and one end disk of each smaller frame, or a separate piece, is arranged to
encounter a stop when the frame is being carried over above the liquid, with the
effect of turning the frame half round. The end disk or piece on the smaller frame
is made with two diametrically opposite notches with one of which a spring catch
engages at each half turn, thereby ensuring the arresting of the turning over of the
frame at the proper point. The spring catch is moved out of the way at the
commencement of each turn over.
Instead of the end disks of the smaller frames being rhomboidal they may be
square or of other simple form.
When it is desired to turn over the smaller frames only at longer intervals than
once for each revolution of the main shaft, the stop the encountering of which
causes the turning over of the small frames, is moved out of and into position as
required automatically or by hand.
In other modifications the vat or vessel is annular or circular in plan the shaft
being central and vertical. The shaft may have on it one or more frames or sets
of radial arms, to the outer parts of which smaller frames are fitted, provision being
made for turning about the smaller frames as in the modification hereinbefore
described. The rods or small reels or barrels carrying the hanks may be arranged
to rotate by means of pinions rolling upon a fixed annular toothed ring.
Dated this Twenty-eighth day of May 1894.
EDMUND HUNT,
Applicant's Agent.

page_text: "
Improvements in Apparatus for Dyeing Yarns and Slubbings or
Rovings, or otherwise Treating the same with Liquids.
I, JOHN PRITCHARD, of the Firm of Kemp Blair and Company, Dyers, of
Gala Dye Works, Galashiels, in the County of Selkirk, North Britain, 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, that is to say :-
My said invention has for its object to improve the construction and operation
of apparatus for dyeing woollen or other yarns, slubbings, or rovings, or for treating
the same with liquids.
In carrying out my invention according to one modification I employ a vat in
the form of a semi-cylindrical trough, having in its axis a rotating shaft on which
are fixed two or more main frames or sets of radial arms carrying at their outer
parts smaller frames provided with rods or bars for carrying the yarns, slubbings,
or rovings, in 'the bank form. Each smaller frame has end disks of a rhomboidal
form, and the rods or bars are arranged on them so that when moved by the
rotation of the shaft they are carried through the liquid in courses with which the
portions of the hanks extending from rod to rod are nearly coincident. Each
smaller frame is provided with two or more pairs of bars, with which arrangement
the hanks at any time nearer the main shaft necessarily have shorter courses
through the liquid than those further out; but to prevent inequality in the dyeing
. or other results from such difference in the distances from the shaft the smaller
frames are arranged to be turned half round at suitable intervals so as to reverse
the positions of the several hanks and make the outer ones inner and vice versa.
Any convenient mechanism may be applied for this purpose. In one simple
arrangement each smaller frame is on a shaft fitted to turn in bearings on the main
frame; and one end disk of each smaller frame, or a separate piece, is arranged to
encounter one or more stops when the frame is being carried over above the liquid,
with the effect of turning the frame half round. The end disk or piece on the
.smaller frame is made with two diametrically opposite notches with one of which a
spring catch engages at each halt turn, thereby ensuring the arresting of the
turning over of the frame at the proper point. The spring catch is moved out of
the way at the commencement of each turn over.
Instead of the end disks of the smaller frames being rhomboidal they may be
square or of other simple form.
When it is desired to turn over the smaller frames only at longer intervals than
once for each revolution of the main shaft, the stop or stops the encountering of
which causes the turning over of the small frames, is or are moved out of and into
position as required, automatically or by hand.
In other modifications the vat or vessel is annular or circular in plan the shaft
being central and vertical. The shaft may have on it one or more frames or sets
of radial arms, to the outer parts of which smaller frames are fitted, provision
being made for turning about the smaller frames as in the modification herein-
before described. The rods or small reels or barrels carrying the hanks may
be arranged to rotate by means of pinions rolling upon a fixed annular toothed
ring.
And in order that my said invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and showing a simple and convenient modification or
example of my improved apparatus.

page_text: Figures, 1, and 2, on the accompanying sheet of drawings are sectional elevations,
as at right angles to each other, of the apparatus.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
I employ a vat, A, in the form of a semi-cylindrical trough, having in its axis
a shaft, B, capable of rotating through worm and worm wheel gearing, C, driven
from any convenient source. On the rotating shaft, B, are fixed two sets of radial
arms, D, E, extending between the outer ends of which are four shafts, F, fitted to
turn in bearings in the radial arms, and each carrying two pairs of small frames, G,
provided with rods or bars, H, for carrying the yarns, slubbings, or rovings, in the
bank form, shown by dotted lines, J. To prevent inequality in the dyeing or other
results from the hanks at any time nearer the main shaft, B, necessarily having
shorter courses through the liquid than those further out the small frames, G, are
arranged to be turned half round at suitable intervals so as to reverse the positions
of the several hanks and make the outer ones inner and vice versa. As shown in
the drawings the turning of the frames, G, is effected by causing a four-armed
wheel, M, fixed on one end of each shaft, F, to encounter two stops, N, P, in
succession when each frame is being carried over above the liquid, with the effect
of turning each frame half round. The stops, N, P, are fixed in a semi-circular
piece, Q, fixed to and extending above one edge of one end of the vat, A. Fixed
on the same end of each shaft, F, as the wheel, M, there is a disk, R, made
with two diametrically opposite notches, S, with one of which a spring catch, T,
carried by each of the radial arms, E, engages, at each half turn, thereby
ensuring the arresting of the turning over of each frame, G, at the proper
point. Each spring catch, T, is moved out of the way at the commencement of
each turn over by a cam-shaped surface, U, on the piece, Q, and encountered by a
projection on the catch.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. The combination and arrangement of parts constituting my improved
apparatus for dyeing yarns, and slubbings or rovings, or otherwise treating the
same with liquids, substantially as hereinbefore described and as shown on the
accompanying drawings.
2. In apparatus for dyeing yarns, and slubbings, or rovings, or otherwise treating
the same with liquids a vat having a rotating shaft on which are fixed two or more
main frames or sets of radial arms carrying smaller frames provided with rods
or bars for carrying hanks, means being also provided for turning over the
smaller frames at intervals substantially as and for the purposes hereinbefore
described.
Dated this Twenty-sixth day of February 1895.
EDMUND HUNT,
Applicant's Agent.