Improvements in Apparatus for Clearing or Combing the Revolving Flats and Doffers of Carding Engines.
Year: 1897

page_text: Date of Application, 23rd Oct., 1897
Complete Specification Left, 23rd July, 1898-Accepted, 27th Aug., 1898
Improvements in Apparatus for Clearing or Combing the Revolving
Flats and Doffers of Carding Engines.
We, WILLIAM SENIOR, Mechanic, and GEORGE ALEXANDER KENNEDY, of the
Firm of Horsfall & Bickham, Card Makers, both of Bridgewater Works, Pendleton,
in the County of Lancaster, do hereby declare the nature of this invention to be
as follows:-
This invention relates principally to means for clearing or combing the fibres
from the revolving flats of carding engines, but it is evidently also applicable to
combs used for clearing the fibres from doffers.
Hitherto it has been usual to employ a reciprocating comb for these purposes,
the said comb being carried by oscillating arms, and consequently the return
stroke of the comb is made against the points of the card teeth, and in the case
of any bad setting or deflection of the comb much damage is done to the card
teeth.
According to this invention we avoid such damage by causing the comb to rotate
and in its rotation to wipe the end of its teeth against a suitable straight edge
which removes the fibre (taken from the card teeth) from the said comb.
The comb thus always moves over the face of the card teeth in the direction in
which the points are set, and never against the points. More than one comb may
be arranged to rotate on the same axis if desired.
The comb is mounted on a suitable rotating spindle, or two spindle ends form-
ing an axis therefor, and we may provide such spindle or spindles with a pin
driving a cross bar or slotted tubular rail so set upon a cam or eccentric with
regard to the comb that as the latter revolves it scrapes off the fibres adhering
thereto against the edge of the cross bar, or one side of the slot in the tubular rail.
In the case of a tubular rail the comb points or teeth will alternately project
from the rail and recede into the same as it rotates, and thus the fibres will be
removed therefrom.
D
1
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1007
Improvements in Apparatus for Clearing or Combing the Revolving
Flats and Doffers of Carding Engines.
We, WILLIAM SENIOR, Mechanic, and GEORGE ALEXANDER KENNEDY, of the
Firm of Horsfall & Bickham, Card Makers, both of Bridgewater Works, Pendleton,
in the County of Lancaster, do hereby declare the nature of this invention and in
[Price 8d.]

page_text: what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This invention relates principally to means for clearing or combing the fibres
from the revolving flats of carding engines, but it is evidently also applicable to
combs used for clearing the fibres from doffers.
Hitherto it has been usual to employ a réciprocating comb for these purposes,
the said comb being carried by oscillating arms, and consequently the return
stroke of the comb is made against the points of the card teeth, and in the case
of any bad setting or deflection of the comb much damage is done to the card
teeth.
According to this invention we avoid such damage by causing the comb to rotate
and in its rotation to wipe the fibre on the ends of its teeth against a suitable
straight edge which removes the fibre (taken from the card teeth) from the said
comb.
The comb thus always moves over the face of the card teeth in the direction in
which the points are set, and never against the points. More than one comb may
be arranged to rotate on the same axis if desired.
The method of carrying our invention into practical effect will be readily under-
stood on reference to the accompanying drawings.
"
Figs. 1, 2 and 3 are sectional views of a comb for clearing the fibre from
revolving flats one flat being shewn dotted at Fig. 1.
Fig. 4 shews a modified motion hereafter described, and Fig. 5 is an end view,
and Fig. 6 a face view of the gear for obtaining the latter motion.
The comb a is mounted on a suitable rotating spindle b as seen at Figs. 1, 2 and 3
(or upon two spindle ends forming an axis therefor) and we may provide such
spindle b (or spindles) with a pin 61 as shewn in the before mentioned figs. driving
a cross bar or a slotted tubular rail d so set upon a fixed cam or eccentric with
regard to the comb a that as the latter revolves it scrapes off the fibres adhering
thereto against the edge of the cross bar, or one side of the slot in the tubular
rail d.
In the case of a tubular rail (as illustrated) the comb points or teeth will
alternately project from the rail d and recede into the same as it rotates as seen
by the three position shewn at Figs. 1, 2, 3 and thus the fibres will be removed
therefrom.
In come cases we prefer to make the tube d move in the reverse direction to
the revolving comb as soon as the latter is withdrawn inside the said tube and
until the comb has attained the position seen at Fig. 3 as indicated by the full
and dotted arrows on Fig. 4.
For this purpose we use a cam e (see Figs. 5 and 6) fixed on the shaft work-
ing in contact with an arm f actuating a toothed wheel 9 turning on an axis fixed
to the bracket h; this wheel y drives a second wheel g¹ loose on the shaft which
drives an arm g² acting on a pin 92* fixed to a disc g³ fast on the tube d. The
wheel g is also provided with a volute spring g' connected to a pin g thereon.
As the cam e rotates it moves the arm f and turns the wheel g which drives the
wheel g¹ pin g2 disc g³ and tube d in the reverse direction the motion being
timed to commence just as the points of the comb a have entered the tube d. The
remaining rotation of the came allows the arm f to return so as to uncoil the
spring g which moves the wheel g in the reverse direction and rotates the tube d
in the same direction as the comb a is working.
2. ut. "
Having now particularly described and ascertained the nature of our said
invention and in what manner is the same is to be performed we declare that
we claim is:
-
Apparatus for clearing the revolving flats and doffers of carding engines con-
sisting of a comb caused to rotate and in its rotation to wine the fibre on the enda

page_text: of its teeth against a suitable straight edge which removes the fibre (taken from
the card teeth) from the said comb substantially as hereinbefore described and
illustrated by the annexed drawings.
Dated this 22nd day of July 1898.
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square, Manchester.