Driving Apparatus for Carding Engine Rollers.
Year: 1888

page_text: Driving Apparatus for Carding Engine Rollers.
We WILLIAM THOMAS RAYNOR of Cambridge Ironworks, Featherstall Road
Oldham, in the county of Lancaster, Engineer, and HENRY DAVENPORT of
Number 202, Chatterton Road Oldham in the county of Lancaster, Carder, do hereby
declare the nature of this invention to be as follows:-
Our said invention relates to the method of driving the workers of carding
engines for fibrous materials, and has for its object a ready means of causing the
said workers to revolve at a lower relative velocity as compared with the cylinder
and other revolving parts of the carding engine than has bitherto been the case.
By such slower revolution of the workers the fibres are more perfectly carded and
freed from impurities.
As usually constructed the workers of carding engines are driven by an endless
chain or rope passing over suitable pullies fixed on the axles of the workers and
also round a pulley on the axle of the doffer or of one of the other revolving
parts of the carding engine, the motion of which is communicated to the workers
by the said endless chain or rope.
According to our present invention we employ a short countershaft or stud having
pullies of different sizes mounted thereon and carried by a bracket on the side frame
of the carding engine. We drive the larger of the pullies on the said countershaft
by means of a chain or rope passing round a palley on the axle of one of the
revolving members of the carding engine, by preference the doffer, and from the
smaller of the pullies on the countershaft we drive the workers by means of an
endless chain or rope passing over the said smaller pulley and also over pulleys fixed
on the axles of the workers. By the use of an intermediate shaft or stud and different
sized pullies as above described a slower motion is imparted to the workers than when
they are driven by a chain or rope passing direct from the pulley on the doffer for

page_text: instance to the workers and by varying the relative diameters of the intermediate
pullies the slowing action may be regulated as desired to suit the class of material to
be carded.
Instead of two separate pullies on the said countershaft we may employ a stepped
pulley having two or more grooves or hearing surfaces for chains or ropes, one of
which receives motion while the other drives the workers in the before mentioned
manner. In order to take up the slack of the ropes or chains the bracket carrying
the countershaft or stud is provided with a slot.
Dated this Sixteenth day of July 1888.

page_text: Driving Apparatus for Carding Engine Rollers.
We WILLIAM THOMAS RAYNOR of Cambridge Ironworks, Featherstall Road,
Oldham in the county of Lancaster, Engineer, and HENRY DAVENPORT of
Number 202 Chatterton Road, Oldham in the county of Lancaster, Carder, do hereby
declare the nature of our invention for "DRIVING APPARATUS FOR CARDING ENGINE
ROLLERS "and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement and accompanying
drawings :-
Our said invention relates to the method of driving the rollers commonly known
as the workers of carding engines for fibrous materials and has for its object a ready
means of causing the said workers to revolve at a lower relative velocity as
compared with the cylinder and other revolving parts of the carding engine than
has hitherto been usual. By such slower revolution of the workers the fibres are
more perfectly carded and freed from impurities. As usually constructed the workers
of carding engines are driven by one or more endless chains or ropes passing over
suitable pullies fixed on the axles of the workers and also round a pulley on the
axle of the doffer or one of the other revolving parts of the carding engine from
which the workers derive their rotary motion.
Heretofore it has been usual to obtain a slower speed for the workers by enlarging
the driving pullies on the ends thereof or by decreasing the size of the pulley on the
doffer from which the workers are commonly driven. A limit to this method of
working is reached inasmuch as in the latter case the pulley cannot conveniently be
made less than the diameter of the axle in which the doffer revolves without weakening
it and introducing other disadvantages and in the former case the size of the pullies
on the axles of the workers cannot be increased to a very great extent without coming
into contact with the axles of the clearers.
According to our present invention we employ a short countershaft or stud having
pullies of different sizes mounted thereon and carried by a bracket on the side
frame of the carding engine. We drive the larger of the pullies on the said
countershaft or stud by means of a chain or rope passing round a pulley on the
axle of one of the revolving members of the carding engine by preference the
doffer and from the smaller of the pulleys on the countershaft we drive the workers
by means of an endless chain or rope passing over the said smaller pulley and also
over pullies fixed on the axles of the workers.
In the accompanying drawings Fig. 1 is a side elevation of so much of a carding
engine as is necessary to clearly show the nature and the mode of application of our
said invention and Fig. 2 is a plan on an enlarged scale showing the countershaft
or stud having different sized pullies thereon and also the bracket carrying the
same.
In both figures the same letters refer to the same parts.
Referring to the said drawing A represents the main cylinder of a carding

page_text: engine, B the doffer, C the pullies on the ends of the axles of the workers. D are
the clearers. E is the side frame of a carding engine as usually constructed.
a is the stud or countershaft herein before referred to provided with flat surfaces
fitting in a slot b of a bracket c in which it can slide for the purpose of adjusting
the tension of the ropes or chains used for receiving and transmitting motion. The
bracket c is secured to a convenient part of the side frame of the carding engine
by means of a bolt d.
Revolving freely on the stud a are two pullies secured together so that the
smaller pulley e may be caused to rotate by the revolution of the larger pulley f.
The pullies e and may form one piece but we prefer to use two separate pullies
secured together in a suitable manner as for instance by mounting one pulley on a
boss projecting from the other pulley and fastening both together by means of a key
as shown at g Fig. 2. By this means one or other of the pullies can be readily
changed when required in order to alter the speed of the workers to suit the class
of material to be carded. A taper pin h keeps the pullies in position on the stud a
and a tightening nut i provided with a handle k acting on the screwed end a¹ of the
stud a enables the stud to be secured in any desired position of the slot b.
In some
The shape and position of the bracket c and the method of securing the same to
the frame of the carding engine may be varied to suit the shape of the frame and the
distance of the pullies on the axles of the workers from the side frame.
cases it is necessary to put the bracket behind the pullies e and f instead of in front
of them as shown in the accompanying drawing.
The method of securing the stud a to the bracket may also be varied for instance
a bolt might pass right through the stud and he secured to the bracket e by means of
a nut. The slot need not necessarily be horizontal or straight but may be inclined
or curved to suit the particular carding engine on which it may be used.
Instead of using a fixed shaft or stud with the pullies revolving freely thereon a
shaft revolving in one or more bearings might be used the pullies being in that case
secured thereto.
On the axle of the doffer B is a pulley / from which motion is imparted to the
large pulley by means of a crossed rope or chain m: another rope or chain_n
transmits motion from the pulley e to the pullies C on the ends of the workers. In
the drawing the rope n is shown passing twice round the pulley e for the purpose of
obtaining a better hold.
From the foregoing description of our said invention it will be seen that the
essential feature thereof consists in the method of driving the workers of a carding
engine by means of intermediate pullies of different sizes between the pullies of the
workers which are driven and the pulley on the part of the machine from which they
derive their motion and various other ways of applying our said invention may be
adopted other than the particular method herein before described and which we
consider the most suitable. For example on the axle itself of one of the workers
two pullies D¹ and e¹ may be mounted the larger of which may derive motion by
means of a rope or chain indicated by dotted lines at m¹ from the pulley on the
doffer shaft and by means of a second rope or chain n' the motion thereof may be
imparted to the other workers. The chain or rope n¹ may also be provided with
one or more pullies as at o for the purpose of regulating the tension of the rope
or chain.
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. The method of driving the workers of a carding engine by the interposition
between the pulley from which motion is usually directly derived and the pullies
on the axles of the workers of two or more pullies of different sizes revolving
together one of the said interposed pullies receiving motion and the other
imparting motion to the workers by means of ropes or chains substantially as and
for the purpose hereinbefore described and shown,

page_text: 2. The combination and arrangement of parts consisting of a bracket c provided
with a slot b for regulating the tension of the chains or ropes in which fits a stud
or shaft a having two or more pullies of different diameters mounted thereon for the
purpose of receiving and transmitting motion when driving the workers of a carding
engine substantially as hereinbefore described and shown.
3. The construction and use of separable intermediate pullies of different sizes
provided with means for securing them together for the purpose of driving the
workers of a carding engine substantially as hereinbefore described and shown.
Dated this eighth day of April 1889.
JULIUS ALLMANN & Co.,
70, Deansgate, Manchester,
Agents for Applicants.