Improved Means for Preventing the Lapping of the Yarn on the Rollers or Clearers of Spinning Machines.
Year: 1897

page_text: Date of Application, 5th July, 1897
Complete Specification Left, 5th Apr., 1898-Accepted, 20th May, 1898
DI BUITIVATION.
Improved Means for Preventing the Lapping of the Yarn on the
Rollers or Clearers of Spinning Machines.
I, THOMAS WOLSTENHOLME, of 3821, Frankfort Avenue, in the City and County
of Philadelphia, State of Pennsylvania, one of the United States of America, Yarn
Manufacturer, do hereby declare the nature of this invention to be as follows:-
-
My invention relates to machinery used for spinning textile fibres such as
wool, cotton, silk and the like, and consists of a device for preventing the "licking
in of strands of the partially twisted yarn during the process of spinning.
"
It is well known among manufacturers of fine spun yarn that as the partially
twisted yarn emerges from between the drawing rollers loose ends or strands are
caught by the lower fluted or ribbed, drawing roller, and carried thereby down to
the rotating under-cleaner, a cloth covered roller situated beneath the outer fluted
roller the strands becoming wrapped, or wound around the side under-cleaner.
This "licking" or "lapping" of the strands may be caused by a certain amount
of electricity generated between the fluted roller and the twisted yarn, or may be
due to humidity, or other atmospheric conditions and is a source of loss in a
spinning mill which it has been found impossible hitherto to prevent.
"
According to my invention I provide means for preventing the "licking in
of these loose ends or strands by the fluted roller. These means may comprise a
bar of metal, or other suitable material mounted contiguous to, but not touching
the outer fluted roller, so that it will serve as a shield or deflector for loose fibres
or strands, drawn down by the fluted roller, or the device may comprise a hollow
bar, or pipe, perforated or slotted to direct a jet, or jets, of air upwardly in prox-
imity to the face of the roller, so as to direct the strands, or fibres, away from
the same.
The drawing rollers may be similar to those used in ordinary spinning machines.
Mounted in front of the lower fluted roller is the aforesaid bar which acts as
a shield or deflector for engaging the fibres or strands which would otherwise be
carried down by the roller to the under-cleaner, and directs the said fibres or
strands away from the said lower fluted roller so that they will be caught up by
the yarn and twisted in with the same.
The bar has preferably a straight inner face and a curved outer face, although
it may be of any desired form not incompatible with the proper performance of
its function, and it is mounted so that its upper edge is about on a level with
the horizontal centre of the lower fluted drawing roller and is in close proximity
to but not in actual contact with the periphery of the said roller, this method
of mounting being also preferable but not absolutely necessary.
However the bar is mounted, the sharp angle, or knife edge, presented by the
top thereof should be closest to the periphery of the roller so that there will be
no likelihood of strands of fibres passing down between the edge and the roller.
The bar may extend along a series of sets of drawing, rollers and its opposite

page_text: ends may be dropped into sockets formed in brackets mounted upon the roller
stands or may be supported in any other suitable manner, preferably so that it
may be readily lifted out of, or readjusted to, its place as circumstances may
require.
If desired, the shield, or deflector bar, may be carried by the levers which carry
the under-cleaner, the contact of the said under-cleaner with the lower fluted
roller serving to limit the approach of the bar. towards the front of the said roller,
or any other suitable form of stop may be used for the purpose.
In spinning the coarser grades of yarn, I may use, either alone, or in addition
to the shield or deflector, an air current for the purpose of directing loose
strands, or fibres, away from the periphery of the drawing roller; for instance I
may make the bar hollow, and slot, or perforate, the upper edge thereof so that a
current of air will be directed upwards across and in contact with the forward
face of the roller thereby directing upwardly and outwardly away therefrom any
loose fibres, or strands which might otherwise be carried down by the said roller
and be caused to engage with or lap around the under-cleaner.
The air current in this case acts in addition to the bar which performs its
function as before, but the air current alone may be used if desired, such current
being derived from a perforated, or slotted pipe so situated relatively to the
drawing roller as to give the said air current its proper direction.
Dated this 5th day of July 1897.
JOHNSONS &
WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improved Means for Preventing the Lapping of the Yarn on the
Rollers or Clearers of Spinning Machines.
I, THOMAS WOLSTENHOLME, of 3821, Frankfort Avenue, in the City and County
of Philadelphia, State of Pennsylvania, one of the United States of America, Yarn
Manufacturer, 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 :—
My invention relates to machinery used for spinning textile fibres such as wool
cotton, silk and the like and consists of a device for preventing the "licking
in" of strands of the partially twisted yarn during the process of spinning.
"
It is well known among manufacturers of fine spun yarn that as the partially
twisted yarn emerges from between the drawing rollers loose ends or strands are
caught by the lower fluted or ribbed drawing roller, and carried thereby down
to the rotating under-cleaner a cloth covered roller situated beneath the outer
fluted roller, the strands becoming wrapped or wound around the said under-
cleaner. This "licking or "lapping" of the strands may be caused by a certain
amount of electricity generated between the fluted roller and the twisted yarn,
or may be due to humidity, or other atmospheric conditions, and is a source
of loss in a spinning mill which it has been found impossible hitherto to prevent.
According to my invention means are provided for preventing the "licking
in" of these loose ends or strands by the fluted roller. These means may
comprise a bar of metal, or other suitable material mounted contiguous to, but
not touching the outer fluted roller so that it will serve as a shield or deflector
for loose fibres or strands, drawn down by the fluted roller; or the device may
comprise a hollow bar or pipe, perforated or slotted to direct a jet, or jets of
i

page_text: air upwardly in proximity to the face of the roller, so as to direct the strands or
fibres away from the same.
I will describe my invention with reference to the accompanying drawings
in which
Figure 1 is a cross section of the drawing rollers of a spinning mule, shewing
in connection therewith a device in accordance with my invention;
Figure 2 is a front elevation of sufficient of the drawing rollers of the mule
to illustrate the application of said device thereto ;
Figure 3 is a view illustrating a modification ; and
Figure 4 is a view illustrating another device for carrying out my invention.
In the drawings, A represents the roller stand supporting the drawing rollers
a aa a³. Above this roller stand are mounted a series of arms B having
guideways b for the reception of the spindles d of the back roller D, and the
carrier rollers D¹ D³. The parchment roller D³ mounted above the front bottom
fluted roller is lighter than the other rollers and to impart the necessary pressure
to the yarn as it passes between this roller and the front bottom fluted roller a
saddle E rests upon the spindle of the roller 13 and to this saddle is attached the
weighted stirrup E.
The rollers herein before described constitute the well known form of drawing
rollers common to spinning mules, and underneath the front bottom fluted roller
is the ordinary revolving under cleaner H supported in place adjacent to the
front bottom fluted roller and adapted to clean said fluted roller of all strands
that may have been caught by the same, this roller being mounted in suitable
notches in the ends of the weighted levers F pivotted at f.
Mounted in front of the lower fluted drawing roller a is a bar G which consti-
tutes the subject of my invention and which acts as a shield or deflector for
engaging the fibres or strands which would otherwise be carried down by the
roller a to the under-cleaner H, and directs the said fibres or strands away from
the lower fluted roller a so that they will be caught up by the yarn and twisted
in with the same.
The bar G has preferably a straight inner face and a curved outer face, although
it may be of any desired form not incompatible with the proper performance of
this function, and it is mounted so that its upper edge is about on a level with the
horizontal centre of the lower fluted drawing roller a and is in close proximity
to but not in actual contact with the periphery of the said roller this method of
mounting being also preferable but not absolutely necessary.
However the bar G is mounted, the sharp angle or knife edge presented by the
top thereof should be closest to the periphery of the roller so that there will be
no likelihood of strands or fibres passing down between the edge and the roller.
The bar G may extend along a series of sets of drawing rollers as shown in
Figure 2 and its opposite ends may be dropped into sockets formed in brackets J
mounted upon the roller stands A or it may be supported in any other suitable
manner, preferably so that it may be readily lifted out of, or readjusted to, its
place as circumstances may require.
If desired, the shield or deflector bar may be carried by the levers which
carry the under-cleaner H as shown in Figure 3 the contact of the said under-
cleaner with the lower fluted roller a serving to limit the approach of the bar G
towards the front of the said roller, or any other suitable form of stop may be
provided for the purpose.
In spinning the coarser grades of yarn, I may use either alone or in addition to
the shield or deflector G, an air current for the purpose of directing loose strands
or fibres away from the periphery of the roller a for instance, as shown in
Figure 4, I may make the bar G hollow, and slot or perforate the upper edge
thereof so that a curent of air will be directed upwards across and in contact
with the forward face of the roller a, thereby directing upwardly and outwardly
away therefrom any loose fibres or strands which might otherwise be carried
down by the said roller and be caused to engage or lap around the under-cleaner,

page_text: The air current in this case acts in addition to the bar G which performs its
function as before, but the air current alone may be used if desired, such current
being derived from a perforated or slotted pipe, so situated relatively to the roller
a as to give the said air current its proper direction.
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 combination in a spinning machine, of a pair of drawing rollers and
a sharp-edged bar having a smooth outer face, mounted vertically in front of,
but not touching the lower one of the pair of drawing rollers the said bar serving
as a shield or deflector whereby the loose fibres or strands from the partially
twisted yarn emerging from between the rollers are directed away from the
periphery of the lower drawing roller, the said bar being so situated relatively
to the said lower drawing roller that its sharp edge is at or about the
horizontal centre of the said drawing roller substantially as herein before
described.
2. The combination in a spinning machine, of a pair of drawing rollers and
a sharp-edged bar having a straight inner face and a smooth curved outer face,
the said bar being mounted with its flat inner face vertically in front of
but not touching the lower drawing roller, and serving as a shield or deflector
whereby loose strands from the partially twisted yarn emerging from between the
drawing rollers are directed away from the periphery of the lower drawing roller,
the said bar being so situated relatively to the said lower drawing roller that its
sharp edge is at or about the horizontal centre of the said lower roller substantially
as herein before described.
3. The combination in a spinning machine, of a pair of drawing rollers, with
a sharp edged bar having a smooth outer face and a flat inner face, the said bar
being mounted with its flat face in a vertical plane in front of but not touching
the lower drawing roller and having its upper edge closest to, and situated in or
about in line with the horizontal centre of the said lower roller, so as to deflect
loose fibres or strands away from the periphery of the said roller substantially as
herein before described.
4. The combination in a spinning machine, of a pair of drawing rollers, an
under-cleaner, bearings for the same, weighted levers carrying the under-cleaner
for keeping it in contact with the lower drawing roller, and a bar carried by the
outer ends of the weighted levers and situated in front of the lower drawing roller
and serving as a shield or deflector whereby loose strands from the partially
twisted yarn emerging from between the rollers are directed away from the
periphery of the said lower roller, the contact of the said under-cleaner with the
lower drawing roller serving to limit the approach of the bar towards the said
lower roller substantially as herein before described.
5. The combination in a spinning machine, of a pair of drawing rollers, with
a bar situated in front of but not touching the lower roller the said bar being
hollow and perforated or slotted, so as to direct a current of air across the face of
the lower roller and cause the loose fibres or strands of the partially twisted yarn
deflected from the lower roller to be caught in and carried forward by the yarn as
it is twisted, substantially as hereinbefore described.
Dated this 5th
1000
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.