A New or Improved Appliance for Cleaning the Edges of Comb Circles employed in Machines for Combing Fibrous Material.
Year: 1892

page_text: Date of Application, 17th Dec., 1892
Complete Specification Left, 18th Sept., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
A New or Improved Appliance for Cleaning the Edges of Comb
Circles employed in Machines for Combing Fibrous Material.
We, WILLIAM HORSFALL GREENWOOD, Commission Wool Comber, and
FREDERICK FARRAR, Manager, both of Spring Mill Street, Bradford, in the
County of York do hereby declare the nature of this invention to be as follows:-
This invention relates to a new or improved appliance for cleaning the edges or
internal and external peripheries of the comb circles employed in machines for
combing fibrous material and its object is to provide a simple and efficient rotary
cleaner adapted to be driven by frictional contact with the comb or circle.
For this purpose we employ a cleaning brush in the form of a disc having bristles
or their equivalent on the face. This disc brush is mounted on a stud or spindle
placed almost in a radial line with the comb circle and sufficiently below it for the
centre of the brush to be below the comb whilst the top may reach to or project
above the top of the pins. The brush is mounted in this position in contact with
the edge of the comb to be cleaned so as to be rotated or driven thereby but its
axis is placed at a slight angle to a radial line of the comb therefore the brush is
only in contact with the comb from the point at which they meet to the highest
point of the brush or when it passes above the pins. By this arrangement as the
comb and brush revolve the bristles. are continuously brushing up the pins from
the roots to the points thus raising any projecting short fibres, waste or dirt to the
top or out of the pins and keeping the edge perfectly clean.
A rubber may be used instead of a brush.
In any case a spring may be used to keep the brush in contact with the circle.
Dated this 16th day of December 1892.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
A New oroImproved Appliance for Cleaning the Edges of Comb
Circles employed in Machines for Combing Fibrous Material.
We, WILLIAM HORSFALL GREENWOOD, Commission Wool Comber, and
FREDERICK FARRAR, Manager, both of Spring Mill Street, Bradford, in the
County of York, 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 :-
This invention relates to a new or improved appliance for cleaning the edges or
internal and external peripheries of the comb circles employed in machines for
combing fibrous material and its object is to provide a simple and efficient rotary
cleaner adapted to be driven by frictional contact with the comb or circle.
For this purpose we employ a cleaning brush in the form of a disc having bristles
or their equivalent on the face. This disc brush is mounted on a stud or spindle
placed almost in a radial line with the comb circle and sufficiently below it for the
centre of the brush to be below the comb whilst the top may reach to or project
above the top of the pins. The brush is mounted in this position in contact with
the edge of the comb to be cleaned so as to be rotated or driven thereby but its
axis is placed at a slight angle to a radial line of the comb therefore the brush is
only in contact with the comb from the point at which they meet to the highest
point of the brush or when it passes above the pins. By this arrangement as the
D
21

page_text: comb and brush revolve the bristles are continuously brushing up the pins from the
rocts to the points thus raising any projecting short fibres, waste or dirt to the top
or out of the pins and keeping the edge perfectly clean.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents a plan view of such parts of a Noble's comb as are necessary
to illustrate the application of our improved brushes or cleaners thereto.
Figure 2, is a cross section on a larger scale of one of the small circles on
the broken line a, b Figure 1 shewing a diametrical section of one of the revolving
brushes.
Figure 3, is an elevation of a portion of the small circle and other parts looking
towards the back of the brush.
Figure 4, is a view of a detail hereinafter referred to.
Figure 5, is a view of a portion of the brush face.
The brushes A, A for cleaning the outer edges of the small circles B, B and the
brushes A' A' for cleaning the inner edge of the large circle C are each mounted
on a stud D and these studs may be supported in any convenient manner.
In the
drawing the studs on which the brushes A are mounted are fixed to short
uprights E, E each secured by a bolt to the cross piece G (of the framework of
the machine) upon which the small circles B, B are mounted. And the studs
carrying the brushes A¹ are fixed to similar uprights El secured to the pro-
jections H, H (on the steam chest of the large circle) upon which the feed-knife
brackets are usually mounted.
The studs D are not set quite radially to the comb circle and are not quite
horizontal but dip slightly towards the front so that the bristles J projecting from
the face of the brush only touch the pins K of the circle from the side where they
first meet the pins to approximately the highest point in their rotation and are
quite clear from said pins during the downward part of their rotation.
The studs D are below the point of contact of the bristles J with the circles and
pins, consequently as the circle revolves the brush disc revolves on its stud at
approximately the same surface speed. And the noil, short fibres and foreign
matter projecting from the edge of the comb at the root of the pins when it reaches
the bristles J is raised as the brush revolves approximately to the top of the pins
or to a position readily removable by the noil knives. This is clearly shown in
Figure 3 in which L represents the dirt and short fibre and the arrows indicate
the direction of rotation of the comb and the brush.
To prevent dirt or fibres getting into the bearings of the brushes upon the
studs D and interfering with the free rotation of the brushes we prefer to form
each stud with a head M fitting a recess N in the front face of the brush and a
similar recess is made at the end of the bearing boss P formed on the back of
the brush. A collar S is mounted upon a reduced portion T of the stud fitting
this latter recess. This collar forms a shoulder to bear against the upright E and
the stud is secured by the nut U. Figure 4, is a separate longitudinal view of the
stud D with the collar S in section.
To keep the bristles of the brush pressed against the comb we make the recess
deeper than the collar S and introduce a spiral spring V more or less compressed
between the bottom of the recess and the front face of the collar S.
It is obvious that instead of a brush a rubber may be used having a soft pliable
elastic face to bear against the comb and pins but we prefer a brush.
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. A revolving brush or rubber for cleaning the edges of the revolving circular
combs of combing machines arranged to be driven by contact with the revolving
comb, substantially as herein shown and described.

page_text: 2. The combination with the circular comb of a combing machine, of a rotary.
brush having bristles or their equivalent on its face adapted to bear against the
said comb and be thereby rotated, substantially as herein shown and described.
Dated this 15th day of September 1893.
DRACUP & NOWELL,
Bradford, Agents.