Improvements in Machinery for Printing Yarns.
Year: 1890

page_text: ate of Application, 13th Mar., 1890
Complete Specification Left, 10th Jan., 1891-Accepted, 14th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Printing Yarns.
I, GIULIO MARCHETTI, of Dean Clough Mills, Halifax, in the County of York,
Carpet Manufacturer, and HERBERT CROSSLEY, of 20, Dover Street, Piccadilly,
in the County of London, Gentleman, do hereby declare the nature of this invention
to be as follows:-
Our invention relates to improvements in machinery for printing yarns for use in
the manufacture of tapestry and tapestry velvet carpets, rugs and similar fabrics.
In the machinery at present employed for printing yarns for use in the manu-
facture of the above named fabrics, the yarn to be printed is wound upon a drum
and the printing is effected by means of a travelling colour-box carrying a pulley,
the said pulley revolving in the colouring matter contained in the travelling colour-
box and printing upon the yarn as the travelling colour-box passes from side to side
of the drum.
According to our invention instead of using a travelling colour-box and pulley
travelling under the drum we make use of what we term a colour-bar and colour-
trough.
Our colour-bar and colour-trough are situated under the drum and the colour-
bar is adapted to have an up and down movement communicated to it while the
colour-trough is stationary.
The bar is raised and lowered by any suitable mechanical contrivance and springs
can, with advantage be used to regulate the pressure. When in the colour-trough
the portion or portions of the colour-bar which are to be brought into contact with
the yarn during the operation of printing is or are covered by the colouring matter
in the colour-trough. When brought into play the colour-bar is raised, so that the
upper or printing portion or portions of the colour-bar is or are pressed against the
yarn on the drum and one scroll" or line is thereby printed across the yarn on
the drum. The colour-bar is then returned to the colour-trough and if another
"scroll" or line of the same colour is required to be printed the drum is moved to
the required position and the colour-bar is again raised as before described so as to
print another "scroll or line across the yarn on the drum. When another colour
is required to be printed the colour-bar and colour-trough are moved out of the way
and another colour-bar and colour-trough substituted, the colour-trough containing
colouring matter of the required shade, and the operation is repeated as above
described.
"
The face of the colour-bar may be grooved or fluted or concave, and is in some
cases provided with fixed or movable sides projecting above the face of the
colour-bar.
In some cases we find it advantageous to form the periphery of the drum of iron
or other suitable metal instead of the wooden lags hitherto usually employed, the
metal periphery being covered, if found necessary, with india-rubber, felt or other
analogous material.

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery for Printing Yarns.
We, GIULIO MARCHETTI, of Dean Clough Mills, Halifax, in the County of
York, Carpet Manufacturer, and HERBERT CROSSLEY, of 20; Dover Street,
Piccadilly, in the County of London, Gentleman, 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 :-
Our invention relates to improvements in machinery for printing yarns in what
are termed spaced colours suitable for being used more particularly in the manu-
facture of tapestry and tapestry velvet carpets, rugs and similar fabrics.
In the machinery at present employed for printing yarns for use in the manufacture
of the above named fabrics, the yarn to be printed is wound upon a drum and the
printing is usually effected by means of travelling colour-boxes each carrying a
disc, or what is termed in the trade a pulley, the said pulleys revolving in the
colouring matter contained in the travelling colour-boxes and printing upon the
yarn as the travelling colour-boxes pass from side to side of the drum. It has also
been proposed to employ sticks or rulers covered with felt and supplied with colour
from a sieve and applied horizontally across the breadth of the drum.
According to our invention instead of using travelling colour-boxes carrying discs
or pulleys travelling under the drum we make use of what we term colour or
printing bars and colour-troughs.
Our colour or printing bars and colour-troughs are situated-under-the drum-and-
the colour-bars-are adapted, during the operation of printing, to have an up
and
down movement communicated to them while the colour-troughs remain stationary
so that they may slip into the troughs.
The colour or printing bars are raised and lowered by any suitable mechanical
contrivance and springs can with advantage be used to regulate the pressure of the
bars against the drum. The portions of the colour-bars which are to be brought
into contact with the yarn during the operation of printing are dipped into the
troughs and are coated with the colouring matter in the colour-troughs. When
brought into action the required colour-bar is raised so that the upper or printing
portion or portions of the said colour-bar is or are pressed against the yarn on the
drum and one scroll" or line is thereby printed across the yarn on the drum.
The said colour-bar is then returned to the colour-trough and if another "scroll"
or line of the same colour is required to be printed the drum is moved to the required
position and the colour-bar is again raised as before described so as to print another
scroll or line across the yarn on the drum. When another colour is required to
be printed the colour-bar and colour-trough are, in the manner hereinafter described,
moved out of the way and another colour-bar and colour-trough substituted, the
colour-trough containing colouring matter of the required shade, and the operation
is repeated as above described.
::
The faces of the colour-bars inay with advantage he grooved or fluted or concave
and they may be in some cases provided with fixed or movable sides projecting
above the faces of the colour-bars.
In some cases we find it advantageous to form the periphery of the drum of iron
or other suitable metal instead of the wooden lags hitherto usually employed, the
metal periphery being covered, if found necessary, with india-rubber, felt or other
analogous material.
In order to enable our invention to be fully understood we will describe how it
can be carried into practice by reference to the accompanying drawings, in which
Figures 1 and 2 are respectively views of opposite sides of a machine for printing
yarns constructed with our improvements.
Figure 3 is a front elevation of the same.
Figures 4 and 5 are respectively a plan and elevation of a detail drawn to an
enlarged scale.

page_text: Figures 7, 8 and 9 are side views, and
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Figure 10 a sectional view of modifications, drawn to an enlarged scale, of the
same.
Figures 11, 12, 13 and 14 are respectively sections, drawn to an enlarged scale,
on the lines a, x, y, y, z, z and z', z¹ of Figures 6, 7, 8 and 9, and
Figures 15, 16, 17 and 18 are similar views to Figures 11, 12, 13 and 14 .but
illustrating modifications.
Similar reference letters indicate similar or corresponding parts throughout the
drawings.
a, a, a represent our colour or printing-bars, a number of which, as shewn in
Figures 1, 2 and 3, are placed under the drum 6 of the machine and which drum
may be of ordinary construction but which we prefer to construct as hereinafter
described. c, c, c represent the colour-troughs of the colour-bars. These colour-
troughs are mounted on a sliding table c' supported and working on slides c²
attached at their extremities to cross rails A'secured to the frame A of the machine.
To the sliding table e' is secured a bracket c³ provided with a female screw-thread
designed to engage with the male screw-thread of a screw d, the said screw being
supported and having its bearings in brackets d' secured to the rails A'. By turning
the screw d the table c¹ is caused to move along the slides c² so as to bring each
colour-trough with its colour or printing-bar into position for printing. Motion is
given to the said screw by means of a series of bevel wheels e which are actuated
by a handle e'. We advantageously provide a recessed stop e² for the reception of
the handle e' so as to serve as an indicator to show when one of the colour-troughs
with its colour or printing-bar is in the position for printing, the movement of each
consecutive trough and bar into such position being effected by one revolution of
the said handle.
Our colour or printing-bars a are shaped as shown, so that when at rest their
central portions extend or pass into the troughs and their ends are supported in
recesses forming guides at the ends of the said troughs; the ends of the bars
project through the said recesses so as to allow the bars to be lifted up as hereinafter
described to print the yarn on the drum b.
2
In order to operate each colour-bar for the purpose of printing the yarn, we
provide compound slides f which are located beneath the centre of the drum band
serve (when each colour-trough is moved as herein before described so as to bring
the ends of its colour-bar over the said slides) to lift the said bar from the trough
and into contact with the yarn on the drum b. Each of the compound slides f, as
shown clearly in Figures 4 and 5, consists of two slides and 2, the slide f¹ sliding
in a supporting bracket f secured to the frame A, and the slide f* sliding in the
slide fare springs for regulating the pressure of the colour-bars when moved
against the yarn by the compound slides, they being located in recesses in the
slides, The said springs serve to support the slides in the slides and are
therefore more or less compressed when the colour-bars are brought into contact with
the yarn according to the degree of movement imparted to the said bars by the com-
pound slides; are recesses in the upper ends of the slides which engage with the
ends of the colour-bars when lifting the same. It will be seen that the slide 2 of the
compound slide at the side of the drum from which the yarn is "stripped"
be lifted from its place when such "stripping" occurs. The movement of the
compound slides fis effected by means of a cam g through the medium of levers y',
shaft, lever ³, rod and lever, the latter being provided with a roller
which bears on the cam g. The said cam rotates on a shaft fixed in brackets ¹ on
extensions B on the frame A, and is operated from the driving pulley i, through the
medium of a spur wheel i, pinion 2, and shaft, the cam together with a cam j
being attached to the wheel. The said cam ; serves to rotate the drum >> in the
usual manner.
The pinion forms part of a clutch and is loose on the shaft ³, the
other part of the clutch being arranged to slide on a spline on the said shaft i³.
The clutch, serves to connect the mechanism for rotating the drum band for
can

page_text: t
lifting the colour or printing bars a with the driving pulley i and is thrown in and
out of gear by any well known means such as by means of a lever.
32
The operation of printing yarn by the mechanism herein before described is as
follows, that is to say, assuming that the drum has been covered in the usual
manner with the yarn to be printed and the colour-troughs c containing the necessary
colours and our colour or printing-bars a be arranged in any required order on the
table c if the said table be moved by its handle e¹ so as to bring one of the colour-
troughs and its bar centrally above the compound slides fand the cam g be revolved
in the direction of the arrow, Figure 3, the said compound slides will be raised and
during their upward movement their recesses f' will embrace the said colour-bar
and carry it with them in their upward movement until the face of the bar is
brought into contact with the yarn on the drum so as to print a line or "scroll
on the yarn, the upward movement of the slide" of the said compound slide being
continued until the necessary amount of pressure is brought to bear upon the colour
or printing-bar by the compression of the springs f. It will be obvious that the
strength of the springs f* can be varied in order to suit various kinds of yarns.
After printing such line or "scroll" the compound slide is lowered, carrying with
it the colour-bar which, during the downward movement, is returned to the colour-
trough and again immersed in the colour, the downward movement of the slides/
continuing until the recesses are disengaged from the ends of the colour-bar.
The drum must then be rotated by the cam in the usual well known manner for
the yarn to be brought into position to receive another line or "scroll" and should it
be desired to print another line or "scroll" of the same colour as that of the last
line or "scroll," the cam 7 will cause a repetition of the movements above described
to take place. Should it, however, be desired to print a line or "scroll" of a
different colour, the sliding table c¹ must be operated by its handle e¹ so as to bring
the colour-trough containing the required colour and its colour-bar into position
above the compound slides-and-the-printing-will-be-effected in a similar manner to
that above described.
Our colour-bars can, as shown in Figures 10 to 14, be grooved or fluted on the
face or printing surface, and, in order to increase the stability of the said bars, we
sometimes, as shown in Figures 7 and 12, provide each of them with a tie-rod a
the ends of which pass through lugs a' on the bar so that it can be put in tension
by means of nuts a³. In some cases we provide each of the said bars with movable
sides a, as shown in Figures 8 and 13, which sides project above the face or
printing surface of the bar and form a trough for the colour and are kept in such
position by means of a spring a' attached to the bar by screws as shown so that
when the bar is brought into contact with the yarn, the sides a are caused to yield
and the face of the bar is brought against the said yarn. In Figure 10 the sides of
the bar are shown fixed or integral with the bar. We, sometimes, also form the
face or printing surface of each bar on a separate strip or block as of india-rubber
or other suitable material, as shown in Figures 9 and 14, the said strip or block
being held in a groove a' in the bar. In Figures 15, 16, 17 and 18 the colour-bars
are shown with concave printing surfaces.
We will now describe, by reference to Figures 1, 2 and 3 the drum which we
find it advantageous to employ in combination with our colour-bars and troughs.
is the periphery of the said drum b, which periphery we find may be most advan-
tageously made of iron and is connected by means of arms to bosses ³ keyed on
a hollow shaft . The periphery is covered with a covering of flexible
material such as india-rubber attached to the said periphery and to the leaves,
hereinafter described, of the drum.
kare rings secured to the bosses by means of arms each ring being formed
in two pieces which are held together by bolts and nuts and clip the arms b
and . Upon each ring k are two projections & to which are secured stays / which
serve to stay the fixed portions of the periphery b' together through the medium of
brackets and studs .
In order to facilitate the "stripping" of the drum, that is to say, the removal of

page_text: the printed yarn from the same, it is provided with two pairs of leaves m, which
are hinged on the studs 1. The said leaves are held in their closed position (as
shown by the full lines in Figure 1) by links n and o which are secured by means
of studs p to extensions p', p² on a segmental spur wheel q, which wheel can turn
freely upon the shaft 6, it being held in place by the bosses b³.
is a spur pinion which gears with the teeth of the wheel the said pinion
9
being keyed on a shaft supported by brackets secured to the rings & and having
a hand-wheel keyed thereon, the said wheel serving, by means of the pinion r, to
rotate the wheel and move the leaves m into the position shown by the dotted
lines in Figure 1 so as to enable the drum to be stripped. Through a screw-
threaded hole in one of the rings works a screws, to one end of which is secured
a hand-wheels, the said screw, when the leaves of the drum are closed preparatory
to printing, being screwed up so that its other end enters a hole in the projection p
of the segmental wheely, thus securing the said wheel and keeping the leaves
closed. When it is desired to open the leaves mas hereinbefore described the
screw s must be withdrawn from the hole in the wheel as will be obvious. The
links are each constructed in two pieces to facilitate their adjustment to the
required length by means of bolts and nuts n¹ and slots n². The links are pro-
vided towards one extremity with slots n which slots enable the links to slide
freely upon the pins during the movement of the segmental wheel and by this
means prevent the leaves from being forced beyond the normal circumferential line
of the drum when the links » come into the radial line. In the slots are also
secured studs by means of nuts a, rollers n being arranged on the said studs so
as to roll against the links o as the leaves are being opened in order to prevent
the leaves of each pair from coming in contact.
י
The drum is filled in the well known manner by the usual mechanism carried
by the brackets and ', and we find it advantageous as hitherto to wind a sheet of
oil-cloth round the said drum before filling with yarn.
Es
The frame A on one side of the drum is provided with the hinged portion A²
which can be let down in the usual manner when "stripping" the drum, and upon
the said hinged portion is mounted a pedestal supporting one end of the shaft,
the said pedestal being provided with a hinged capul secured by means of a screw u
provided with a hand wheel . The shaft is also supported by a pedestal v
mounted on the frame A at the side of the drum opposite to the hinged portion A
and in order to facilitate the opening of the said hinged portion the said pedestal v
is hinged to its base as shown at ', Figure 3. When it is necessary to strip the
drum b, the pedestal cap u' is released by means of the screw u² and the pedestal v
acting as a fulcrum for the shaft the end of the shaft furthest from the drum is
depressed by an eye-bolt ², thereby allowing the hinged portion A² of the frame A
to be let down. To enable the eye-bolt to be operated to depress the end of the
shaft as described, it is provided at its lower end with a male screw-thread which
engages with a corresponding female screw-thread in a hand wheel ³, the said
eye-bolt passing freely through a bracket v secured to the cross rail B' on the
extensions B.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
(1.) In machinery for printing yarns in what may be termed spaced colours the
use of colour or printing bars in combination with colour-troughs and means for
bringing each colour-bar and its trough into the required position under the drum
of the machine and for communicating a vertical upward movement to the said
colour-bar for printing the line or "scroll" and for returning the bar to its trough,
substantially as described.
(2) The construction and use of colour-bars such as those herein mentioned in
machines for printing yarns, substantially as described and illustrated in Figures 6
to 18.

page_text: (3.) The use with colour-bars such as those herein mentioned of colour-troughs
having recesses at the ends to receive the ends of the said bars, substantially as
described.
(4.) In machinery for printing yarns, the mechanism for operating colour-bars
and troughs, such as those herein mentioned, substantially as herein before described
and illustrated in Figures 1, 2 and 3 of the accompanying drawings.
(5.) In machinery for printing yarns having colour-bars and troughs, such as
those herein described the use of a drum constructed, arranged and operating
substantially as hereinbefore described and illustrated in Figures 1, 2 and 3 of the
accompanying drawings.
(6.) The combination of parts forming the improved machine for printing yarns
in spaced colours, substantially as hereinbefore described and illustrated in Figures 1,
2 and 3 of the accompanying drawings.
Dated the 10th day of January 1891
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.