Improvements in Rotary Clearers for the Drawing Rolls of Cotton Machinery.
Year: 1897

page_text: Date of Application, 14th Oct., 1897
Complete Specification Left, 13th July, 1898- Accepted, 13th Aug., 1898
PROVISIONAL SPECIFICATION.
Improvements in Rotary Clearers for the Drawing Rolls of Cotton
Machinery.
We, JAMES THOMSON, JR., of 192, Pine Street, Pawtucket, Rhode Island,
Overseer, and SOCRATES SCHOLFIELD, of 95, Westminster Street, Providence,
Rhode Island, Patent Solicitor, both in the United States of America, do hereby
declare the nature of this invention to be as follows:-
In the employment of rotary clearing disks which bear flatly upon the drawing
rolls of cotton machinery, the cloth face of the disk is liable to be worn by the
continued frictional action of the rolls thereon, and a very considerable amount
of power is expended in imparting rotary movement to the disk, the surface of
the disk at one side of its turning axis, being in its rotation, caused to move in
an opposite direction to that of the adjacent surfaces of the rolls. It is the object
of this invention to avoid such wear upon the surface of the cloth, and to provide
for the easier rotation of the clearing disk. And to this end, the invention consists,
in supporting the rotary clearing disk with the plane of its face in a slightly
inclined position relatively to the plane of the adjacent surfaces of the rolls,
a portion of the face of the disk at one side of its turning axis being arranged
in driven contact with one or more of the rolls, while the face of the disk at the
opposite side of the turning axis is held away from bearing contact with the said
rolls, thus preventing wear of the cloth surface of the disk by reason of frictional
engagement between the face of the disk and the adjacent oppositely moving
surfaces of the rolls, and facilitating the rotation of the disk. And in carrying
out this invention, the rotary clearing disk may have its face inclined to the
plane of the adjacent surfaces of the rolls by holding its turning axis in an
inclined bearing, or by suspending the clearing disk slightly above the rolls and
pressing the edge of the disk at one side of its turning axis, downward, to
contact with the rolls, and by other suitable means, whereby the face of the
disk may be maintained in a slightly inclined position relatively to the adjacent
surfaces of the rolls.
This invention also consists in so supporting the rotary disc by the head or
shoulder of its turning axis, that an unbalanced portion of the weight of the
disk will bear upon the rolls, and in carrying out this feature of the invention, a
bearing support is provided under the head, at one side of the turning axis
of the disk, whereby the opposite unbalanced side of the disk will be caused to
bear upon one or more of the rolls, and the face of the disk will be held in a
slightly inclined position relatively to the adjacent surfaces of the rolls.
D
1
141
1007
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicants.

page_text: Improvements in Rotary Clearers for the Drawing Rolls of Cotton
Machinery.
We, JAMES THOMSON, JR., of 192, Pine Street, Pawtucket, Rhode Island,
United States of America, Overseer, and SOCRATES SCHOLFIELD, of 95, West-
minster Street, Providence, Rhode Island, United States of America, Patent
Solicitor, 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:-
of
In the employment of rotary clearing disks which bear flatly upon the drawing
rolls of cotton machinery, the cloth face of the disk is liable to be worn by the
continued frictional action of the rolls thereon; and a very considerable amount
power is expended in imparting rotary movement to the disk, the surface of
the disk at one side of its turning axis being in its rotation caused to move in
an opposite direction to that of the adjacent surfaces of the rolls. It is the object
of my invention to avoid such wear upon the surface of the cloth, and to provide
for the easier rotation of the clearing disk, and to this end the invention consists,
in supporting the rotary clearing disk with the plane of its face in a slightly
inclined position relatively to the plane of the adjacent surfaces of the rolls,
a portion of the face of the disk at one side of its turning axis being arranged
in driven contact with one or more or the rolls,, while the face of the disk at the
opposite side of the turning axis is held away from bearing contact with the said
rolls, thus preventing wear of the cloth surface of the disk by reason of frictional
engagement between the face of the disk and the adjacent oppositely moving
surfaces of the rolls, and facilitating the rotation of the disk. And in carrying
out this invention, the rotary clearing disk may have its face inclined to the
plane of the adjacent surfaces of the rolls by having its turning axis held in an
inclined bearing or by suspending the clearing disk slightly above the rolls and
pressing the edge of the disk at one side of its turning axis, downward to
contact with the rolls, and by other suitable means, whereby the face of the
disk may be maintained in a slightly inclined position relatively to the adjacent
surfaces of the rolls. The rotary disk may also be so supported by the head
or shoulder of its turning axis, that an, unbalanced portion of the weight of the
disk will bear upon the rolls, and in carrying out this feature of the invention,
a bearing support is provided under the said head or shoulder at one side of the
turning axis of the disk, whereby the opposite unbalanced side of the disk will
be caused to bear upon one or more of the rolls, and the face of the disk will also
be held in a slightly inclined position relatively to the adjacent surfaces of the a
rolls.
In the accompanying drawings, Figure 1 represents a front view of the
drawing-rolls, an edge view of the inclined clearing disk, and a longitudinal
section of the cover for the rolls. Fig. 2 represents a similar view showing a
different method for causing the required inclination of the clearing-disk from
the plane of the rolls. Fig. 3 represents a section taken in the line 3-3 of Fig. 1.
Fig. 4 represents the clearing disk as held in an inclined position by means of
the head or shoulder of the turning axis.
In the drawings, Fig. 1, A represents the leather-covered rolls, having their
upper surfaces arranged in the same horizontal plane, B the lower fluted rolls, 4
and C the cover for the rolls, usually pivoted to the frame of the machine by
means of the ears k. The clearing-disk D is provided with a turning axis E,
preferably screwed into the disk, so as to be removable therefrom, and provided
with a head b, which rests against the top of the cover whenever the said cover

page_text: is raised from the rolls, the said turning axis E being loosely held in the bearing
perforation in the top of the cover and in the bearing-perforation d in the
bracket F, the bearing perforation d being so set relatively to the bearing-per-
foration c that the turning axis E will be thrown slightly out of a vertical
position and the plane of the face f of the disk D will be slightly inclined to
the plane of the top of the rolls A. When the cover C is raised the disk D
will be supported by means of the head b, which then bears upon the top of the
cover, and when the cover is brought down to cover the drawing-rolls the lower
edge e of the face of the inclined disk D will come in contact with one or more
of the rolls A; thus causing the rotation of the disk in the same direction as
that of the engaged surface of the rolls, while the opposite edge el of the face of
the disk will be slightly elevated from the rolls, so that the rotation of the rolls
in a direction opposite to that of the movement of the disk at the side e¹ will
not interfere with the free rotation of the disk caused by the frictional contact
of the lower edge e of the face f at the opposite side of the axis of the disk D
with the upper surface of one or more of the rolls A, and by this means the wear
of the cloth surface a of the disk D by frictional contact with the oppositely-
moving surface of the rolls A at the side e¹ will be prevented, and as the disk D
revolves the waste will be collected in a felted sheet upon the surface of the disk,
and this accumulation of waste will serve as a means for clearing the constantly
accumulating waste from the surface of the rolls under the elevated portion e¹
of the disk.
Another form of construction is shown in Fig. 2, in which the face of the
clearing-disk D is inclined for revolution by means of the bracket F¹, secured
to the boss g by means of the screw h, so that when the disk D is freely suspended,
with the head of the turning axis E of the disk resting in contact with the
upper side of the said bracket, the face f of the disk will lie in a horizontal
position slightly above the plane of the upper surface of the rolls A, and under
the head of the fastening-screw h is placed the flat spring i, provided at its
outer end with the antifriction-roller j, which bears upon the upper side of the
supported disk and depresses the edge e of the face of the disk into contact
with the surface of one or more of the rolls A, causing the elevation of the
opposite edge e¹ of the face, so that the disk at the edge el will not be in frictional
contact with the oppositely-moving surface of the rolls, and with this construc-
tion a very slight pressure of the spring i upon the disk will serve to cause its
rotation over the rolls for the proper collection and accumulation of waste.
Another form of construction is shown in Fig. 4, in which the turning-axis E
is provided with the enlarged head 61, which rests at one side k¹, upon the
upwardly projecting stud or bearing-support I, located upon the fixed bar m,
thus serving to hold the turning-axis of the disk in an inclined position and
allowing the unbalanced portion of the weight of the disk to bear upon the rolls,
to cause the desired rotation of the disk, the turning-axis E, being preferably
held for rotation in the open notch n, located in the forward edge of the bar m.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. The combination of the drawing-rolls, with a rotary clearing-disk having
the plane of its clearing-face supported in an inclined position relatively to the
plane of the adjacent surfaces of the rolls, a portion of the face of the clearing-
disk at one side of its turning axis being held in driven contact with one or more
of the said rolls, while the face of the disk at the opposite side of its turning
axis is held away from bearing contact. therewith, substantially as described.
2. The combination of the drawing rolls, with a rotary clearing disk provided
with a head or shoulder upon its turning axis, and a bearing support located
under the said head or shoulder at one side of the turning axis, whereby the

page_text: unbalanced weight of the disk will be caused to bear upon one or more of the
rolls, and the face of the disk will be held in a slightly inclined position relatively
to the adjacent surfaces of the rolls, substantially as described.
Dated thio 19th day of Lule 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicants.