Improvements in Doffer Cleaners for Carding Machines.
Year: 1887

page_text: Date of Application, 18th Jan., 1887
Complete Left, 18th Oct., 1887
Complete Accepted, 22nd Nov., 1887
PROVISIONAL SPECIFICATION.
Improvements in Doffer Cleaners for Carding Machines.
1, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the institute of Patent
Agents, do hereby declare the nature of this Invention, a communication to me
from abroad by The Bebb Cleaner Company of Indianapolis, State of Indiana,
United States of America, to bo as follows
--
This invention relates to an improved doffer cleaner for carding machines and it has
for its object to provide a simple means by which the dirt and short fibre will be
cleaned from the doffer and the dirt and very short stock discharged into a trough or
other receptacle while the longer fibre will be returned to the doffer to be incorporated
with the lap.
In carrying out the invention, a framing constituting a support for the several
operating devices is employed, consisting of a standard, brackets, and carriers. The
standards have right angled feet at their lower ends, slotted to receive bolts, by
which the standards may be secured adjustably to the framing of a carding
machine.
In the standards are formed vertical slots to receive bolts which secure the brackets
to the standard so that such brackets may be independently adjusted. These brackets
have slots, and the carriers are secured to their respective brackets by bolts, passed
through such slots, and thereby the said carriers may be adjusted independently of
each other and of their brackets. The carriers are provided with ears for supporting
the journal boxes of the cleaner and stripper rollers.
The cleaner is journaled in a box which is supported by screws, threaded through
the ears of its carrier. In the present construction, the cleaner is a roller having
longitudinal rows of card clothing, and in practice such card clothing moves into
contact with the doffing roller. The cleaner is driven by a belt from the doffer
shaft.
The stripper is a revolving stripper, being a roller provided with card clothing.
This roller has its shaft journaled on boxes supported by screws threaded through the
ears of its carrier, the shaft being driven from a fancy, so that the revolving stripper
will be run at a high rate of speed. This stripping roller moves in contact with the
cleaner and close to but not in contact with the doffer. In front of this stripper, that

page_text: is, on the side of same, opposite the doffer, is arranged a trough or receptacle for the
dirt and short stock stripped from the cleaner. Between this trough and the stripper,
is a dividing plate. This may be a plain upright strip with its upper edge close to the
stripping roller, but it preferably has one side curved to fit around the roller, while its
other or front side is straight and forms a support for the said trough or receptacle.
This is detachably connected by hooks and eyes with the dividing plate, which latter
is connected adjustably with its supporting bracket. This dividing plate serves
to divide the dirt and short worthless stock from the long fibre, discharging the
former into the trough, while the latter is carried on and delivered to the doffing
roller when it may be carried thereby and united with the lap being formed.
In this operation it will be seen that the centrifugal force will throw off the short
stock and dirt from the revolving stripper, while the long fibres will be retained till
they have passed the upper edge of the dividing plate.
Instead of the roller form of cleaner, the oscillating form may be employed. In
this case a shaft is journaled in boxes and has arms carrying a bar provided with
card clothing and movable into contact with the stripper. This shaft may be
operated by cranks and connecting rods from the shaft or axle of the doffing
cylinder.
The stripping roller, it will be understood, runs at a high speed, and the cleaner
may also consist of a number of approximately radial arms having card clothed
bars at their outer ends and fixed on a common shaft which in operation is to be
revolved.
It is manifest that the framing forming a support for the cleaning devices may be
modified and that the particular construction of the cleaning and stripping devices used
with such modified framing may also be modified without departing from some of the
broad principles of the invention. Thus the bracket supporting the stripper may he
formed integral with the standard and the stripper may be a bar supported directly on
the bracket of said standard without the intervention of a carrier, and the lugs in which
the cleaner is mounted may be formed directly on the bracket, instead of on a plate
adjustably supported upon said bracket. In this construction the cleaner is given an
oscillatory motion by properly connecting its shaft by a connecting rod with a
suitable crank. In the operation of this last construction the doffing roller is revolved
slightly faster than the swinging motion of the oscillating cleaner by means of suitable
disposition of the driving mechanism. By thus causing the said cleaner to move
slower than the surface of the doffer the former operates to partially clean the doffer
during both the upward and downward stroke. Also by reason of the relative speed
described, the clothing of the cleaner will enter gradually that of the roller, until such
cleaner has reached the end of its upward stroke, thus easing the operation of the
machine and so avoiding any damage to the clothing of such parts, such as might
occur if they were brought abruptly into contact.
Dated this 18th day of January 1887
A. MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: I ALEXANDER MELVILLE CLARK of the firm of A. M. and Wm. Clark of 53 Chancery
Lane in the County of Middlesex, Fellow of the Institute of Patent Agents, do
hereby declare the nature of this invention (a communication to me from abroad by
The Bebb Cleaner Company of Indianapolis, State of Indiana, United States of
America) 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 an improved doffer cleaner for carding machines, and it
has for its object to provide a simple means by which the dirt and short fibre will be
cleaned from the doffer and the dirt and very short stock discharged into a trough or
other receptacle, while the longer fibre will be returned to the doffer to be incorporated
with the lap.
The Invention has for further objects other improvements and consists in certain
features of construction and novel combinations of parts, as will be described.
Reference is to be had to the accompanying drawings forming part of this specification,
wherein
Figure 1 is a side elevation of a part of a carding machine provided with the
improvements.
Figure 2 is a detail perspective view of a part of the improved cleaner.
Figure 3 is a diagrammatic view, part in section, shewing the relation of the doffer,
cleaner, stripper and trough.
Figure 4 is a perspective view, showing a cleaner of different construction from
that shown in the other figures.
Figure 5 shows another form of cleaner; and
Figure 6 shows a somewhat modified construction.
In carrying out the invention a framing constituting a support for the several
operating devices is employed, and such framing is shown in Figures 1, 2 and 4, as
consisting of a standard A, brackets B, C and carriers D) and E.
The standards A, as shown in such Figures have right angled feet a at their lower
ends and such feet are slotted at 1 to receive the bolts 2, by which the standards may
be secured adjustably to the framing of a carding machine.
In the standards are formed vertical slots 3 and 4 to receive the bolts 5 and 6
which serve to secure the brackets B and C to the standard so that such brackets
may be independently adjusted. These brackets B and C have slots and c and
the carriers D and E are secured to their respective brackets by bolts 7 and 8,
passed through slots b and c and thereby the said carriers may be adjusted indepen-
dently of each other and of their brackets. The carriers D and E are provided with
ears d and e.
The cleaner F is journaled in a box G, which is supported by screws H HI, threaded
through the ears d of carrier D. In the construction shown in Figures 1, 2 and 3 the
eleaner is a roller having longitudinal rows g of card clothing and in practice such
card clothing moves into contact with the doffing roller.
The shaft or trunnion of the cleaner is extended and provided with a band pulley 1,
geared by a belt i with a pulley on the shaft of the doffer.
The stripper J is a revolving stripper being a roller provided with card clothing.
This roller has its shaft j journaled on boxes K supported by screws k threaded through
cars e.
On the shaft is fixed a pulley L, geared by belt with a nuller m on a fancy M

page_text: so that the revolving stripper will be run at a high rate of speed. This stripping
roller moves in contact with the cleaner and close to but not in contact with the
doffer.
In front of this stripper, that is, on the side of same opposite the doffer, is arranged
a trough or receptacle N for the dirt and short stock stripped from the cleaner.
Between this trough and the stripper, is a dividing plate O. This may be a plain
upright strip with its upper edge close to the stripping roller, but it preferably is as
shown, having one side curved to fit around the roller, while its other or front side is
straight and forms a support for the box N. This box is detachably connected by
hooks and eyes with the plate O, which latter is connected adjustably with the
bracket C by means of a bolt o passed through a plate o¹, extended from the dividing
plate and through a slot e' in the part E.
The hooks and eyes connecting box N and plates O are usually arranged as shown
most clearly in Figures 2 and 3, the hook n being pivoted at one end to the box N
and engaging the eye n' on the plate O. This plate serves to divide the dirt and
short worthless stock from the long fibre, discharging the former into the trough, while
the latter is carried on and delivered to the doffing roller when it may be carried
thereby and united with the lap being formed.
In this operation it will be seen that the centrifugal force will throw off the short
stock and dirt from the revolving stripper, while the long fibres will be retained till
they have passed the upper edge of the dividing plate.
Instead of the roller form of cleaner shown in Figure 1, the oscillating form shown
in Figure may be employed. In this construction a shaft P is journaled in the
boxes G and has arms p carrying a bar Q provided with card clothing and movable
into contact with the stripper. This shaft also has a crank arm 9, connected by a
rod 10 with a crank 11, which crank may be extended from the shaft or axle of the
doffing cylinder.
The stripping roller, it will be understood, runs at a high speed.
The cleaning roller may be revolved in one or the other direction. If run in the
direction indicated by the arrow the cleaner should be run slower than the doffer, but
if moved in the reverse direction it may be run as fast or faster than the doffer, as may
be desired.
In Figure 5 the cleaner shown consists of a number of approximately radial
arms having card clothed bars at their outer ends and fixed on a common shaft
which in operation is to be revolved. The mechanism for revolving such shaft
may be the same as that shown in Figure 1, for revolving the shaft jof the cleaner
therein shown, and it is not thought necessary to duplicate the illustration of such
mechanism.
It is manifest that the framing forming a support for the cleaning devices may be
modified and that the particular construction of the cleaning and stripping devices
used with such modified framing may also be modified without departing from some
of the broad principles of the invention. Thus in Figure 6 the bracket C is shown
as formed integral with the standard and the stripper is a bar supported directly on
the bracket of said standard without the intervention of a carrier, and the lugs d d are
formed directly on the bracket B instead of on a plate adjustably supported upon
said bracket B. In this construction, shown in Figure 6, the cleaner is given an
oscillatory motion by properly connecting its shaft by a connecting rod with a
suitable crank. In the operation of this last construction the doffing roller is revolved
slightly faster than the swinging motion of the oscillating cleaner by means of suitable
disposition of the driving mechanism. By thus causing the said cleaner to move
slower than the surface of the doffer the former operates to partially clean the doffer
during both the upward and downward stroke. Also by reason of the relative speed
described the clothing of the cleaner will enter gradually that of the roller, until such
cleaner has reached the end of its upward stroke, thus easing the operation of the
machine and so avoiding any damage to the clothing of such parts, such as might
occur if they were brought abruptly into contact.

page_text: Manifestly the gearing by which this relative speed is secured may be modified and
arranged in various ways.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what I
claim is
1. The combination of the doffer, a revolving cleaner, a revolving stripper and
supports and operating means therefor, substantially as set forth.
2. The combination of the doffer, a stripping roller having card clothing, supports
whereby said roller may be held close to the doffer, operating means for said stripping
roller, a cleaner, and supports and operating means therefor, whereby said cleaner may
be actuated into contact with the doffer and the stripping roller, substantially as and
for the purposes specified.
3. In combination with the doffer of a carding machine, a stripping roller having
card clothing, adjustable bearings for said roller, a cleaner movable into contact with
said doffer and roller and supports and operating means for said cleaner and stripping
roller, substantially as set forth.
4. The combination with a cleaner, of a revolving stripper and a trough arranged
adjacent to said stripper, and a dividing plate arranged between the receptacle of said
trough and the revolving stripper, substantially as set forth.
5. The combinations of the standard having slots 3 and 4, the brackets B and C,
bolts securing said brackets to the standard and passed through slots 3 and 4,
and the cleaner and stripper supported on said brackets B and C, substantially as set
forth.
6. The herein described improved doffer cleaner for carding machines consisting of
the standard having slots 3 and 4, the brackets B and C having slots b and c, bolts
securing the brackets to the standard and passing through the slots 3 and 4, the
carriers D and E, having ears d and e, bolts whereby to secure said carriers adjustably
to the brackets the boxes (and K adjustable connections between said boxes and
the ears d and e and the cleaner and stripper journaled in such boxes, substantially as
set forth.
7. The improved doffer cleaning attachment for carding machines comprising the
standards A having slots 3 the brackets Cadapted to support the stripper, the brackets B,
bearings for the boxes G, supported in said brackets B, bolts connecting brackets B
with the standards and passed through slots 3, whereby said brackets B inay be held
at different points of standards A, the boxes G, the shaft journaled in said boxes, and
provided with the cleaner, the stripper and connections between said stripper and
bracket C, substantially as set forth.
8. The combination of the standards A, the brackets B, supported thereby, the
boxes G, the shaft journaled in said boxes and carrying the cleaner, the set screws
connecting the boxes G adjustable with the bracket B, the stripper and means for
adjustably supporting said stripper, substantially as described.
9. The combination of the standards having brackets C, provided with slots, the
brackets B supported by said standards and having bearings for the shaft, the shaft
journaled in said bearings, the cleaner, supported and carried by said shaft, the stripper,
bolts whereby said stripper is supported adjustably on the brackets C, and means for
operating the cleaner, substantially as set forth.