IMPROVEMENTS IN CARDING ENGINES FOR CARDING AND CLEANING COTTON AND OTHER FIBROUS MATERIALS."
Year: 1876

page_text: LETTERS PATENT to Ambrose James Haworth, of Oldham, in the County of
25
Lancaster, for the Invention of IMPROVEMENTS IN CARDING ENGINES FOR
CARDING AND CLEANING COTTON AND OTHER FIBROUS MATERIALS."
PROVISIONAL SPECIFICATION left by the said Ambrose James Haworth at
the Office of the Commissioners of Patents on the 6th November 1876.
AMBROSE JAMES HAWORTH, of Oldham, in the County of Lancaster. "IMPROVE-
MENTS IN CARDING ENGINES FOR CARDING AND CLEANING COTTON AND OTHER
FIBROUS MATERIALS."
This Invention relates to that class of carding engines working with
flats" or
top cards, and firstly to an improvement in the driving or movement of the "flats
upon the main carding cylinder.
#t
"
"
In carding engines, as hitherto constructed, these "flats" move slowly in the
same direction as the main carding cylinder, that is to say, from the "taker-in
towards the "doffing cylinder," the flats being clean at the feeding end or
taker-in," and being stripped of their dirt at or near the doffing cylinder. The
result of this arrangement is that it is impossible to prevent the dirt from falling.
on to the clean carded wool and spoiling the work. To obviate this defect I drive
or move the 'flats" slowly in the opposite direction (that is from the doffer
towards the taker-in), and I strip or clean the flats at the back or feeding end, and
the consequence is that the "flats" are always clean at the doffing end where the
clean carded cotton is and are stripped of their dirt at the feeding end where the
cotton has not yet been carded.
"
The stripping or cleaning of the "flats is effected by means of a comb, having
an upward motion in the same direction as the flats are moving, and actuated by
means of a revolving cam driven from any convenient part of the engine.
The flats are kept in working condition against the main carding cylinder by means
of weighted levers instead of by screws, as usual, and the result is that a great portion
of the strain is taken off the working parts, and the amount of pressure is always
even and regular, which could not be obtained by the screws usually employed.
-

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Ambrose James Haworth in the Great Seal Patent Office on the
4th May 1877.
AMBROSE JAMES HAWORTH, of Oldham, in the County of Lancaster.
" IMPROVE-
MENTS IN CARDING. ENGINES FOR CARDING AND CLEANING COTTON AND OTHER
FIBROUS MATERIALS."
This Invention relates to that class of carding engines working with "flats" or
top cards, and firstly to an improvement in the driving or movement of the "flats "
upon the main carding cylinder.
In carding engines, as hitherto constructed, these "flats" move slowly in the
same direction as the main carding cylinder, that is to say, from the
taker-in"
towards the "doffing cylinder," the "flats" being clean at the feeding end or
"taker-in," and being stripped of their dirt at or near the doffing cylinder. The
result of this arrangement is that it is impossible to prevent the dirt from falling
on to the clean carded wool and spoiling the work.. To obviate this defect I drive
or move the "flats" slowly in the opposite direction (that is from the doffer towards
the taker-in) and I strip or clean the flats at the back or feeding end, and the con-
sequence is that the "flats" are always clean at the doffing end where the clean
carded cotton is, and are stripped of their dirt at the feeding end where the cotton
has not yet been carded.
The stripping or cleaning of the "flats" is effected by means of a comb, having
an upward motion in the saine direction as the flats are moving, and actuated by
means of a revolving cam driven from any convenient part of the engine.
The flats are kept in working condition against the main carding cylinder by
means of weighted levers instead of by screws, as usual, and the result is that a
great portion of the strain is taken off the working parts, and the amount of
pressure is always even and regular, which could not be obtained by the screws
usually employed.
Such being the nature and object of my said Invention I will now proceed to
describe in detail the manner in which the same is to or may be performed or.
carried into practical effect; and in order that the same may be clearly understood
I have annexed hereunto a Sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof :-
The annexed Drawing represents a side elevation of a carding engine, constructed
and arranged according to my Invention. a, a, is the main framing, and b, b, the
main carding cylinder; c, c, is the taker-in roller; and d, d, the "doffing
cylinder" e, e, is the endless chain of "flats." The direction of revolution of the
taker-in c, c, inain cylinder b, b, and doffing cylinder d, d, is not changed, but instead
of driving the endless chain of flats e, e, slowly in the same direction as the main
cylinder b, b, revolves, as hitherto, I reverse them and drive them slowly in
the opposite direction, as shown by the arrows upon the Drawing, and I strip or
clean the flats e, e, at the back of the feeding end of the engine by means of a
comb ff, to which is given an upward motion (in the same direction as the flats e, e,
are travelling) by means of a revolving cam g, g, which may be driven in any
convenient manner. I also use a revolving brush h, k, for the same purpose, and
in order to keep the flats e, e, in working condition against the surface of the main
cylinder b, b, I sometimes use weighted levers, as shown at i, i, instead of the
screws ordinarily employed for that purpose.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I wish it to be understood, that I claim as my Invention,―
Firstly. Constructing and arranging the parts of the carding engine so that the
flats move slowly in the opposite direction to the main carding cylinder, and
stripping or cleaning the same at the back or feeding end of the engine instead

page_text: of as heretofore, for the purpose of keeping the flats always clean at the doffing end
where the clean carded cotton is, and removing the dirt therefrom at the feeding
end where the cotton or other fibrous material has not yet been carded.
Secondly. I claim the use of weighted levers, for the purpose of keeping the flats
up to the surface of the main carding cylinder in place of the screws usually
employed for that purpose.
In witness whereof, I, the said Ambrose James Haworth, have hereunto set
my hand and seal, this Second day of May, in the year of our Lord One
thousand eight hundred and seventy-seven.
Witnessed by
JOHN HUGHES,
Clerk to George Davies, C.E.,
Patent Office,
4, St. Ann's Sq.,
Manchester.
AMBROSE JAMES HAWORTH. (L.S.)