Improvements in or applicable to Engines for Carding Cotton and other Fibrous Materials having Rollers and Clearers.
Year: 1898

page_text: Date of Application, 16th Dec., 1898
Complete Specification Left, 15th Sept., 1899-Accepted, 14th Oct., 1899
PROVISIONAL DIECITION
Improvements in or applicable to Engines for Carding Cotton and
other Fibrous Materials having Rollers and Clearers.
I, LOUIS ALFRED PORRITT, of the Firm William Tatham & Company, of Vulean
Works, Rochdale, in the County of Lancaster, Machine Makers, do hereby declare
the nature of the said invention, to be as follows:-
In engines for carding fibrous materials, a cap is applied at each end of the
roller, clearer or fancy roller, and this cap is a dished disc on the end of a long
boss, and the end of the roller or clearer comes into the dish or cavity, and the
cylindrical ends of the dish come nearly close to the teeth forming the card
surface, and the end of the boss nearest the roller or clearer may come close to
the end of the roller or clearer, and the long boss is held in a bracket which
prevents it from rotating; the shaft of the roller or clearer being free to rotate
within the long boss.
The object of this arrangement of cap, commonly called "shrouds" is to pre-
vent the fibrous material being carded, from spreading over the ends of the wire
or teeth and accumulating in lumps which may pass on and get into the carded
fleece delivered from the doffer, and thus spoil its evenness.
The rollers and clearers have to be lifted from the engine at times and taken
to a machine in which their card teeth are ground, and these shrouds" are
liable (at least at one end) to slide off the shaft and be broken and otherwise
give trouble. This invention consists in arrangements by which these "shrouds "
are kept from sliding off their shafts when removed from the engine, the arrange-
ments which are preferred are those which can be readily removed, when the
"shroud" is to be taken off the shaft, but which will prevent the
shrouds "
from sliding off their shafts by their own weight. One arrangement consists of
a metal hoop bored out slightly smaller than the shaft upon which it is to fit,
and then cut so that it will open slightly when forced upon the shaft and its
elasticity will be sufficient to grip the shaft and prevent the "shroud" from
sliding off from it.
"
66
Another arrangement consists in forming an internal groove within the boss
of the shroud," and a corresponding groove in the shaft, and within these
grooves there is an elastic metal ring cut open, this ring will open (there being
space enough in the groove in the boss of the "shroud” to allow of this) and
pass out of the groove in the shaft, this giving sufficient hold to prevent the
shroud" from sliding off the shaft, yet it will allow the "shroud" to be readily
passed on or off the shaft with but little force.
Another arrangement is an elastic hoop cut to open by its elasticity and
passed on to a groove on the shaft-two edges of this elastic hoop are champhered
off so that when the end of the boss of the "shroud" comes against the inclined
or champhered edge of the elastic hoop it will be compressed so that the bore
of the boss can pass over it-or other suitable arrangements may be employed,
such as a pin with a cone end that is in a hole across the diameter of the shaft,
the cone end of the pin being pushed outwards by an helical spring just above

page_text: the periphery of the shaft, this pin will be slided inwards when the boss of the
"shroud comes against it with sufficient force.
23
The brackets or forks in which the boss of each "shroud" rests are round
at the bottom to fit the exterior diameter of the boss and to prevent the boss
from rotating in the fork or bracket, a cap part is secured to it by screws, the
ends of which cap part fit the flats of the fork or bracket and prevent it from
rotating.
"
Another arrangement consists of a collar on the boss of the "shroud'
which collar is secured by a set screw to the boss and one side of it forms a
shoulder to come against the side of the fork and keep the boss of the "shroud "
from moving endways in the bracket, a projection from this collar also enters
the fork in the bracket and prevents the shroud from revolving.
In some cases the boss parts of the "shrouds" have a hinged box for
lubricant which is to pass to the shaft, as these shafts have rapid rotation and
require by preference à lubricant of the consistency of tallow.
Dotad this Triftoanth daw of Naramban 1000
Improvements in or applicable to Engines for Carding Cotton and
other Fibrous Materials having Rollers and Clearers.
I, LOUIS ALFRED PORRITT, of the Firm William Tatham & Company, of Vulcan
Works, Rochdale, in the County of Lancaster, Machine Makers, 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:-
In engines for carding fibrous materials, a cap is applied at each end of the
roller, clearer or fancy roller, and this cap is a dished disc on the end of a long
boss, and the end of the roller or clearer comes into the dish or cavity, and the
cylindrical ends of the dish come nearly close to the teeth forming the card
surface, and the end of the boss nearest the roller or clearer may come close to
the end of the roller or clearer, and the long boss is held in a bracket which
prevents it from rotating; the shaft of the roller or clearer being free to rotate
within the long boss.
The object of this arrangement of cap, commonly called "shrouds" is to pre-
vent the fibrous material being carded, from spreading over the ends of the wire
or teeth and accumulating in lumps which may pass on and get into the carded
fleece delivered from the doffer, and thus spoil its evenness.
are
The rollers and clearers have to be lifted from the engine at times and taken
to a machine in which their card teeth are ground, and these " shrouds
liable (at least at one end) to slide off the shaft and be broken and otherwise
give trouble. This invention consists in arrangements by which these "
shrouds "
are kept from sliding off their shafts when removed from the engine, the arrange-
ments which are preferred are those which can be readily removed, when the
"shroud" is to be taken off the shaft, but which will prevent the "shrouds "
from sliding off their shafts by their own weight.
(a). One arrangement consists of a metal hoop bored out slightly smaller than
the shaft upon which it is to fit, and then cut so that it will open slightly when
forced upon the shaft and its elasticity will be sufficient to grip the shaft and
prevent the "shroud" from sliding off from it.
(5). Another arrangement consists in forming an internal groove within the boss
of the "shroud," and a corresponding groove in the shaft, and within these

page_text: grooves there is an elastic metal ring cut open, this ring will open (there being
space enough in the groove in the boss of the " shroud" to allow of this) and
pass out of the groove in the shaft, this giving sufficient hold to prevent the
shroud" from sliding off the shaft, yet it will allow the "shroud " to be readily
passed on or off the shaft with but little force.
(c). Another arrangement is an elastic hoop cut to open by its elasticity and
passed on to a groove on the shaft-two edges of this elastic hoop are champhered
off so that when the end of the boss of the "shroud" comes against the inclined
or champhered edge of the elastic hoop it will be compressed so that the bore
of the boss can pass over it.
(d). Or other suitable arrangements may be employed, such as a pin with a
cone end that is in a hole across the diameter of the shaft, the cone end of the
pin being pushed outwards by an helical spring just above the periphery of the
shaft, this pin will be slided inwards when the boss of the "shroud" comes against
it with sufficient force.
(e). The brackets or forks in which the boss of each "shroud" rests, are round
at the bottom to fit the exterior diameter of the boss and to prevent the boss
from rotating in the fork or bracket, a cap part is secured to it by. screws, the
ends of which cap part fit the flats of the fork or bracket and prevent it from
rotating.
"
(f). Another arrangement consists of a collar on the boss of the "shroud ".
which collar is secured by a set screw to the boss and one side of it forms a
shoulder to come against the side of the fork and keep the boss of the
"shroud
from moving endways in the bracket, a projection from this collar also enters
the fork in the bracket and prevents the shroud from revolving.
(9). In some cases the boss parts of the "shrouds" have a hinged box for
lubricant which is to pass to the shaft, as these shafts have rapid rotation and
require by preference a lubricant of the consistency of tallow.
Fig. 1. is a longitudinal side elevation, and Fig. 2, is an end elevation illus-
trating one modification of my invention.
Figs. 3 and 4; 5 and 6; 7 and 8; 9 and 10 and 11 and 12 illustrate other
modifications of my invention.
Figs. 3, 5, 7, 9 and 11 are views corresponding to Fig. 1, and Figs. 4, 6, 8, 10
and 12 views corresponding to Fig. 2.
In Figs. 1 and 2-a, represents one end of the roller, clearer or "fancy" roller
having card teeth w, which work in connection with card teeth 61, on the card
cylinder b, partly shown in Figs. 1 and 2-a², is the shaft of the roller at one
end which fits and rotates in the boss or tubular part c', which forms part of the
shroud c, coming against the end of the roller as shown in Figs. 1 and 2.
d, is a part of the "bend" on the side of the carding engine, e, the forked
bracket which carries the boss or tubular part c¹, of the shroud c, and prevents
it from rotating-3, is a shoulder formed on the boss c¹, to come against one
side of the forked bracket c.
Figs. 1 and 2 illustrate that modification of my invention above described in
the paragraph commencing (a)-f, is the metal hoop or ring referred to, bored
out a little smaller than the shaft, and then cut so as to open slightly and
hold on to the shaft sufficiently tight.
c3, is a piece secured by screws to the boss c¹, and its sides fit the flat sides
of the fork and thus prevent the boss from revolving in the fork. This arrange-
ment is referred to above in the paragraph commencing (e)-There is a hole in
the part 3, for lubricant to pass through the part, and through a hole in the boss
part c', to the rotating shaft a².
The same letters of reference for similar parts are used in the illustrations
of each modification, which parts will thus be understood without further refer-
ence thereto.
Figs. 3 and 4 illustrate that modification above described in the paragraph
commencing (b).

page_text: There is an internal groove, in the shoulder part of the boss c', of the
shroud and a corresponding external groove in the shaft a², for an elastic metal
ring f, cut open so that it can pass on to the shaft a², or into the internal
groove, which gives space to allow it to open and allow the boss c¹, to pass off
the shaft when sufficient force is applied, but which prevents the shroud from
passing off by its own weight.
Figs. 5 and 6 illustrate the modification above described in the paragraph
commencing (c).
2, is an elastic metal hoop cut to open or expand when passed on to the
shaft a, fitting a groove therein when in its correct position,
The champhered edges of the elastic hoop f, will allow the hole for the shaft
in the boss of the shroud to pass over it, as the hoop is thereby compressed
into the groove in the shaft, sufficiently to allow this when sufficient force is
applied.
Figs. 7 and 8 illustrate the modification. above described in the paragraph
commencing (d).
A hole is bored diametrically through the shaft a², but this hole is only large
enough on one side to allow the cone head of a pin f3, to pass through, a
shoulder on the pin prevents it from passing too far-round the reduced part
of the pin there is an helical spring shown in dotted line, which at one end
abuts against the shoulder on the pin and at the other end against a bush f*,
screwed into the hole, the tail of the pin sliding in the hole in the bush.
The cone end of the pin is pushed inwards when the boss of the shroud is
passing over it, but is pushed outwards again by the spring which is strong
enough to prevent the pin from being forced inwards by the weight of the boss
and shroud, when the shaft a², is held vertically end downwards.
Figs. 9 and 10 illustrate another modification above described for preventing
the boss and shroud from revolving in the fork e.
f, is a collar which is secured on the boss c', of the shroud by a set screw f³.
This collar on one side has a projection f, that fits into the fork.
Figs. 11 and 12 illustrate a box g, with an hinged lid g', for lubricants of
the consistency of tallow, which box is secured to or forms a part of the boss c³,
of the shroud.
A hole in the bottom of the box g, allows the lubricant as it melts to pass
to the shaft.
In the modifications of my invention hereinbefore described the parts opera-
ting to hold on the shroud (c) are moved from the shaft (as in Figs. 1 and 2)
or left on the shaft (as in Figs. 3 to 8) when the shroud is removed therefrom,
but my invention may be carried into effect by connecting the part acting to
hold on the shroud to the boss of the shroud itself or to a part connected with
it, in the manner shown in Figs. 3 and 4 which also shows the ring modification
herein before described.
In this case there is a part c³, secured to the boss or sleeve of the shroud c¹,
by two screws as in Figs. 1 and 2, and having the same function, but in this
case the head of one screw is under a flat spring fs, and the head of the other
above it so that this latter screw acts both to secure the part 3, to the boss of
the shroud and the end of the flat spring f³, into a groove in the top of the
part c³, which groove prevents the spring from moving laterally.
The end of the spring f8, is bent to come into a groove a³, round the shaft u
but need not press against its bottom when the shaft is rotating.
There is a hole through the flat spring for lubricant to pass through. The
spring, is strong enough to prevent the shroud from passing off the shaft
by its own weight when the shaft is end downwards.
By another modification the part e³, may be made to project over the outside
of the fork e, and have a spring pin arranged in it, as shown in Figs. 7 and 8
the cone point of the pin projecting downwards into the groove on the shaft.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. The combination with the shafts of rollers, clearers or "fancy" rollers of
carding engines, of arrangements for preventing the shrouds from leaving the
shafts by their own weight when the rollers are being carried or held with
their ends downwards, but which will allow the shrouds to be readily moved
and replaced when required, substantially as hereinbefore described and illus-
trated by Figs. 1 and 2, 3 and 4, 5 and 6 and 7 and 8 of the drawings.
2. The arrangements for preventing the shrouds from revolving with their
shafts substantially as herein before described and illustrated by Figs. 1 and 2
and Figs. 9 and 10 of the drawings.
3. The combination of a box with a lid with the boss of the shroud (which
will also prevent it rotating in the fork) for lubricants of about the consistency
of tallow substantially as hereinbefore described and illustrated by Figs. 11
and 12 of the drawings.
عمل
f Canterha 1900
PETER J. LIVSEY,
Agent.