IMPROVEMENTS IN WHAT ARE COMMONLY CALLED CLEARERS FOR REMOVING IMPERFECTIONS FROM YARNS OR THREADS
Year: 1877

page_text: LETTERS PATENT to Joseph Stubbs, of Manchester, in the County of Lancaster,
Machino Maker, and Charles Henry Pugh, of Birmingham, in the County of
Warwick, Screw Manufacturer, for the Invention of "IMPROVEMENTS IN
WHAT ARE COMMONLY CALLED CLEARERS FOR REMOVING IMPERFECTIONS
FROM YARNS OR THREADS."
aled the 4th June 1878, and dated the 7th December 1877.
PROVISIONAL SPECIFICATION left by the said Joseph Stubbs and Charles
Henry Pugh at the Office of the Commissioners of Patents on the 7th
December 1877.
JOSEPH STUBBS, of Manchester, in the County of Lancaster, Machine Maker,
and CHARLES HENRY PUCH, of Birmingham, in the County of Warwick, Screw
Manufacturer. "IMPROVEMENTS IN WHAT ARE COMMONLY CALLED CLEARERS FOR
REMOVING IMPERFECTIONS FROM YARNS OR THREADS."
"
According to the usual construction of "clearers," it is well known that the yarn
or thread is caused to pass through a slit regulated in width according to the "count"
which is to be operated upon. This slit can therefore only act upon the yarn or
thread on two sides thereof, and the consequence is that some imperfections fail to
be removed; and this defect we obviate by causing the yarn or thread to pass through
an aperture which embraces more than two sides thereof. To effect this we propose
to use a plate with an angular, circular, or other such orifice, and to provide for the
adaptation of the yarn or thread by means of a slit leading thereto, but as it is
equired sometimes to provide for orifices of different gauges, we propose to form the
said orifices of two parts, adjustable towards each other, and formed with angular
or other recesses, and by such adjustments the required gauge may be obtained, or
instead of this arrangement we use the ordinary slit, with a top cross piece, and
adopt an adjustable part beneath it, the sides of the slit being also adjustable.
It is well known that clearers are used consisting of two parts, which are adjustable
towards each other, and in groups; we propose to use such group adjustment, but to
Price Gd1

page_text: use also separate means of adjustment for the two parts of each clearer, whereby we
are enabled to keep the clearing surfaces true to each other throughout the series;
and we propose to fix the sliding parts, when a group is adjusted, by means of a boxed
set screw, and by preference with a head of unusual form, to avoid its being tampered
with.
To adjust a group we use a sliding bar, carrying the moving portions, and on
which wo form a screw, and pass it through a nut situate in a recess.
For preventing the yarn or thread from being lifted out of the clearer we employ
a notched wheel or wheels, or other such parts, which the yarn or thread twines on
being adapted to the clearer, such twining producing an altered position of the
notched parts, which cannot be twined back to their original position, and thus
prevent the yarn or thread from being lifted out.
The said notched wheel or wheels may be replaced by a spiral, which being
turned when the yarn or thread is adapted, effects the same result.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Stubbs and Charles Henry Pugh in the Great Seal
Patont Office on the 7th June 1878
JOSEPH STUBBS, of Manchester, in the County of Lancaster, Machine Maker,
and CHARLES HENRY PUGH, of Birmingham, in the County of Warwick, Screw
Manufacturer. "IMPROVEMENTS IN WHAT ARE COMMONLY CALLED CLEARERS FOR
REMOVING IMPERFECTIONS FROM YARNS OR THREADS."
"
According to the usual construction of clearers, it is well known that the yarn or
thread is caused to pass through a slit regulated in width according to the "count
which is to be operated upon. This slit can therefore only act upon the yain or
thread on two sides thereof, and the consequence is that some imperfections fail to
be removed; and this defect we obviate by causing the yarn or thread to pass
through an aperture which embraces more than two sides thereof.
Secondly. Our Invention relates to apparatus for preventing the yarn or thread
from being lifted out of the clearer, which is sometimes done by the attendant, in
order to avoid piecing.
In the accompanying Drawing, Figs. 1, 2, 3, 4, show one method of carrying out
the first part of our Invention.
At 1, 2, are plates capable of sliding on each other at their lower ends, each of
them being provided with an angular recess 3, 4. In Fig. 1 these two plates are shewn
separated from each other beyond their working position, but when in use they are
slidden upon each other and secured together by a set screw or other suitable
means, as shown at Fig. 2, and when in that position (the angular recesses having
overlapped each other) a small square orifice 5 is produced through which the yarn
or thread in process of being cleaned passes, and such yarn or thread is therefore
acted upon on more than two sides at the same time, so that any imperfections
which should be cleared, but which would turn and pass through the ordinary
straight slit, are removed.

page_text: It will be obvious that by causing the set screw or other such appliance to work
in a slot, the aperture 5 may be adjusted for any count of yarn. In applying the
yarn to this form of clearer, it will of course be necessary to pass it downward
between the two plates 1, 2, into the clearing aperture 5, and to facilitate this the
said plates are turned over at their upper edges, as seen at 6, 7, Fig. 3.
Instead of the above-described angular recesses in the plates 1, 2, there might be
one only, the other plate having a straight surface, in which case a triangular orifice
would be formed by their approach, or circular, oval, rectangular, or other recesses
nay in like manner be adopted.
Figs 5 and 6 shew a modification. In this case 8 is a plate having a vertical
slit 9, which at its upper end is closed by a covering part 10, and beneath that by
another covering part 11, which is adjustable on the plate 8 by a bolt or set screw 12,
by which means a rectangular orifice 13 is provided, through which the yarn or
thread to be cleared passes, it being adapted into the shit 9 and around the part 10.
By adjusting the sliding piece 11 the orifice may be regulated in size vertically.
Figs 7, 8, 9, 10, 11 shew an arrangement of the second part of our Invention,
but involving also an arrangement which effects the object of the first part thereof,
the last three of these Figs. shewing the apparatus complete, and the other two with
certain parts removed, the more clearly to shew the construction.
At 14 is a plate, to be fixed to the machine in any suitable manner, and provided
with a slit 15, which passes downward in a curved form. Upon this plate is mounted
a piece 16 which projects upward from a bar 17, capable of sliding upon the plate 14,
and of being tightened in any required position by nuts 18.
At 19 is a notched wheel, mounted upon the plate 14, so as to be capable of being
turned in one direction, but prevented from being turned in the other by a click 20.
This wheel is partially covered by two guards 21, 22, and the operation is as
follows. The yain or thread being passed down the slit 15 partially turns the
wheel 19 upon its centre, and is then situate in an orifice bounded by the surfaces
of a notch of the said wheel and the edge of the part 16, which is curved to the
circumference of the wheel 19, and the orifice thus formed constitutes the clearing
surfaces, which orifice may be altered in size by adjusting the bar 17 and its
projecting part 16, and thus far the object of the first part of our Invention is
accomplished, the yarn or thread always travelling at the same level by passing
over the usual guide rods. The curved form of the edge of the part 16, however,
maintains the same gauge for a certain portion of a revolution of the wheel 19. The
yarn or thread having been adapted as above described, and supposing the attendant
to attempt to lift it out, the wheel 19 would have to turn in the contrary direction
to the arrow, and this the click 20 prevents, whereby the second part of our
Invention is accomplished, as the guard 22 prevents the yarn or thread from being
passed around the face of the wheel 19.
Figs. 12, 13, shew a modification of the above. In this instance there are two
notched wheels 19, 19*, situate the one before the other, one of them being provided
with a click 20. In this instance the spaces between the two teeth form the
clearing orifice, and they may be made adjustable to or from each other for regulating
the size of such orifice. The safeguard from lifting out is as before.
Figs, 14, 15, shew another modification of the second part of our Invention. In
this instance the two plates 23, 24, constitute an ordinary adjustable clearer, with a
straight slit 25. Within these two plates is a hooked wheel 20, capable of turning
on a centre 27. The yarn or thread being passed through the slit 25 turns this
wheel downward, but if it be attempted to lift the said yarn or thread, it is caught
by the hooks and is thereby retained.
Figs. 16, 17, 18, 19, shew another modification.
At 30 is an ordinary clearer, in front of which is adapted a tube 31 having a
vertical slit therein corresponding to that of the clearer. Within this tube is a
hollow spiral 29, shewn detached at Fig. 10, and capable of revolving freely within
the tube 31 in one direction, but prevented from turning in the other by a spring
click 32 taking into its spaces. The yarn or thread being passed down the clearing

page_text: slit enters the spiral, and by turning it, but cannot be lifted upward, as the catch 32
prevents the spiral from turning back.
In the above description the clearers have been described as adjustable (when so
constructed) singly, for different "counts," but in all cases the said adjustment may
be made in groups, as is now practised; and for the sake of clearness the orifices
through which the yarns or threads pass are shewn in the Drawing of larger
dimensions than would in practice be required.
In regard to the second part of our Invention, it will be observed that when the
yarn or thread has been inserted the notched wheel or spiral has been turned, so
that another application thereof, if it be doubled over, must cause it to enter another
space, and thus effectually prevent its removal.
Having thus described and ascertained the nature of our said Invention, and the
manner in which the same is to be performed, I desire it to be understood that we
claim as secured to us under the above in part recited Letters Patent, and for the
purposes above set forth,-
Firstly. The use of cloaring surfaces capable of acting upon more than two sides
of the yarn or thread at the same time.
Secondly. For preventing the yarn or thread from being lifted from the clearer,
the use of notched, spiral, or other such wheels, which having been turned by the
adaptation of the yarn or thread, are prevented from being turned back.
In witness whereof, I, the said Joseph Stubbs, have hereunto set my hand and
seal, this Sixth day of June, in the year of our Lord One thousand eight
hundred and seventy-eight.