IM- PROVEMENTS IN APPARATUS FOR DYEING YARNS."
Year: 1868

page_text: LETTERS PATENT to John McLeod, of Renton, in the County of
Dumbarton, North Britain, Engineer, for the Invention of "IM-
PROVEMENTS IN APPARATUS FOR DYEING YARNS."
PROVISIONAL SPECIFICATION left by the said John McLeod at the
Office of the Commissioners of Patents, with his Petition, on the
17th June 1868.
I, JOHN MCLEOD, of Renton, in the County of Dumbarton, North
Britain, Engineer, do hereby, declare the nature; of the said: Invention
for "IMPROVEMENTS IN APPARATUS FOR DYEING YARNS," to be as follows, that
is to say :-
This Invention has for its object by means of improved apparatus to
secure the dyeing of yarns'in a more uniform and satisfactory manner,
and with less manual labor than heretofore.
The principal features of novelty in the improved apparatus are the
arranging of a number of poles for carrying and working the yarn hanks
upon sliding bars made to reciprocate horizontally, and the applying of
gearing to turn the poles so as to gradually, move round and change the

page_text: positions of all parts of the hanks. The hanks are placed upon pairs of
poles, the upper pole of each pair resting on the sliding bars, whilst the
lower pole hangs in the lower parts of the hanks, and holds them down
in a stretched condition in the dycing liquor. The poles may be round
or polygonal, and are by preference made of wood. The upper poles
have fixed at their ends metal. journals, which turn in bearings formed
for them in the sliding bars. These bars are arranged to slide on guides
applied to the top sides of the dyeing boiler or vat, and they are made to
reciprocate horizontally by means of eccentrics on a transverse horizontal
shaft at one end of the apparatus, or in any equivalent manner. The
turning motion may be imparted to the upper poles in a variety of ways,
as for example, by means of toothed or frictional wheels fixed on the
journals, and gearing with each other, or with an endless chain or band;
it is however preferred to obtain the motion by means of a worm or
screw shaft lying under and gearing with worm wheels formed or fixed
on the journals of the poles, as with this arrangement any single pole
can be lifted out if required without stopping the machine, and without
interfering with the other poles. The gearing for turning the poles may
be arranged so as to reverse the motion periodically. The boiler or
dyeing vat may be heated in any way in use with existing dyeing
apparatus.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John McLeod in the Great Seal Patent Offico on
the 16th December 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MCLEOD, of Renton, in the County of Dumbarton, North Britain,
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of June, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John M°Leod, Her special licence that I,
the said John McLeod, my executors, administrators, and assigns, or
such others as I, the said John McLeod, my executors, administrators,
and assigns, should at any time agree with, and no others, from time

page_text: to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS FOR DYEING
YARNS," upon the condition (amongst others) that I, the said John
McLeod, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said John McLeod, do hereby declare
the nature of my said Invention, and in what manner the samo is
to be performed, to be particularly described and ascertained in and by
the following statement in writing, reference being had to the accom-
panying Drawings, that is to say :-
My said Invention has for its object by means of improved apparatus
to secure the dyeing of yarns in a more uniform and satisfactory manner
and with less manual labor than heretofore.
The principal features of novelty in my improved apparatus are the
arranging of a number of poles for carrying and working the yarn hanks
upon sliding bars made to reciprocate horizontally, and the applying of
gearing to turn the poles so as to gradually move round and change the
positions of all parts of the hanks.
And in order that my said Invention and the manner of performing
the same may be properly understood, I have hereunto appended a Sheet
of explanatory Drawings, to be herein-after referred to, and representing
yarn dycing apparatus as constructed with my improvements.
Figure 1 is a plan, Figure 2 is a side elevation, partly in vertical
section, and Figure 3 is a transverse vertical section. The same
reference numerals are used to mark the same or like parts in all the
Figures.
The dye vat is a long rectangular vessel constructed of flanged cast-
iron plates bolted together and comprising bottom plates 1, end plates 2,
and side plates 3. The side plates 3 are formed with horizontal V-guides 4
edges, in which work sliding bars 5, made to recipro-
near their upper

page_text: These
cate longitudinally by gearing to be herein-after described.
sliding bars 5 are formed with bearings to receive the end spindles of
poles 6, upon which the hanks 7 of yarn are hung, these bearings being
open to allow of any pole being lifted out at any time. In the Drawing
hanks 7 are shown on only a few of the poles 6, but it is to be under-
stood that all the poles may have hanks upon them to be dyed
simultaneously. The hanks 7 are placed round pairs of poles, that is,
round upper ones 6 already referred to, and round lower ones 8, which
distend the hanks and prevent them from interfering with each other.
The lower poles 8 are formed or fitted with end spindles like the upper
ones, and grooves 9 are formed on the side plates 3 of the vat to guide
them into and keep them in their proper places. The hanks are
prevented from working towards the sides of the vat by longitudinal
tubular rods 10, which are set in notches made for them in the top edges
of the end plates 2. Steam pipes 11 may be provided for heating the
dyeing liquor in the ordinary way, as shown in Figures 1 and 2, or they
may be cast in the bottom plates 1, as shown in Figure 3. The sliding
bars 5 are connected together by transverse tie bars 12 at the ends, and
one of these tie bars has jointed on it a pair of connecting rods 13 from
cranks 14 on a transverse horizontal shaft 15 provided with fast and
loose pulleys 16 for a driving belt. By this gearing the upper poles 6
are made to reciprocate horizontally; they are at the same time made to
turn slowly round, so as to be continually changing the positions of the
hanks by means of worm wheels 17 on their end spindles at one side of
the machine. These worm wheels gear with a horizontal screw shaft 18,
which lies under them and is carried by the sliding bar 5 at that side,
and which is actuated by means of a bevil wheel 19. This bevil wheel 19
is made with an elongated boss, and drives the screw shaft 18 by means
of a groove and key to accommodate the longitudinal movement of that
shaft, whilst it is itself driven by either of two bevil pinions 20 on the
shaft 15. These bevil pinions are loose on their shaft, and an inter-
mediate sliding clutch 21 is provided for putting one or other of them
into gear. With this arrangement the rotation of the poles 6 can be
reversed at any time by means of a hand lever 22, by which the
clutch 21 is shifted. If preferred, this reversing of the rotation of the
poles may be effected by the machine itself at regular intervals by any
convenient automatic gearing, such for example as a worm wheel driven
by a worm on the shaft 18 or on the shaft 15, and fitted with a pin or
pins connected by a link to or acting on the reversing lever 22.

page_text: The poles 6, 8, may be round or polygonal and of any suitable material,
I prefer to make the upper ones 6 of wood and the lower ones 8 of
copper. The poles may be made to rotate by means of frictional wheels
or by means of toothed wheels gearing with each other or with inter-
mediate wheels or by means of an endless chain or band. I however
prefer the arrangement delineated in the Drawings and herein-before
described, as it admits of any single pair of poles being lifted out if
required without stopping the machine and without interfering with the
other poles.
Having thus particularly described my said Invention, and the
manner in which the same is to be performed, I have to state that I
do not restrict myself to the precise details herein described or delineated,
but that what I believe to be novel and original, and claim as the
Invention secured to me by the hercin-before in part recited Letters
Patent is, the constructing of apparatus for dyeing yarns with gearing
for giving a reciprocating movement to poles carrying the yarn hanks
and for turning the poles to change the positions of the hanks,
substantially as herein-before described.
In witness whereof, I, the said John McLeod, have hereunto
set my hand and seal, this Fifteenth day of December, in the
year of our Lord One thousand eight hundred and sixty-eight.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
JOHN MACLEOD. (L.S.)