Improvements in Apparatus for Preparing Wool, Cotton, or other Fibrous Material for Spinning.
Year: 1899

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Preparing Wool, Cotton, or other
Fibrous Material for Spinning.
I, JOSEPH ALEXIS ALBERT IMBS, of 20, Rue Greuze, Paris, in the Republic of
France, Engineer, 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:-
-
This invention relates to apparatus for preparing wool, cotton, or other fibrous
material for spinning and has for its principal object to provide an improved
rota-frotteur or American frame whereby the sliver or slivers is or are more
compactly stored on bobbins than hitherto and also more readily unwound there-
from in the subsequent treatment or use of the same.
I will describe my invention with reference to the accompanying drawings
in which Figure 1 is a vertical section of my improved apparatus. Figure 2 is
a plan of the same. Figures 3, 4 and 5 are views of parts of the apparatus
detached. Figures 6 and 7 shew in sectional elevation and plan respectively
a modified form of the apparatus.
Referring to Figures 1 to 5 the individual slivers from the drawing cylinders
are passed through slots in a plate 6 to between rubbing leathers or surfaces a
and thence through guides d in a plate c. After leaving the guides in the
plates c two, three or more slivers can be combined and conducted to its receiver.
Each receiver comprises the following parts-
1. A pusher consisting of, a fluted roller m on shaft k and rotating in contact
with a smooth bar e having slots n through which the doubled, trebled or quad-
rupled slivers pass.
2. A sliding piston or presser o and a sliver directing tube p, a passage being
provided in the piston through which the directing tube passes.
The said piston o
is mounted on a rod of free to slide up and down in a guide o and is raised by
a lever o actuated by a cam o suitably timed to cause the piston to rise at the
requisite period the return stroke of the piston taking place by gravity.
3. A bobbin rst situated concentrically beneath the piston o and consisting of
a vertical smooth rod s with a base plater and a plate t which is moveable on the
rod s with the required amount of friction obtained by a spring z surrounding
a split collar on the underside of the plate and other springs y arranged below
at intervals on the aforesaid rod s.
4. A can u split vertically throughout its length so as to render it capable of
expansion in which can the bobbin rst is placed.
The upper end of the can is fitted with a sheath or sleeve consisting of three
tubes and the external tube of which forms a belt round the upper end
of the said split can so as to keep it in its closed position for ensuring the proper
formation of the coiled material or cop 7 while being formed on the bobbin.
The internal tube v of the sheath or sleeve extends inside the can u to a distance
somewhat less than that to which the piston o is caused to descend so that at each
depression of the piston the top coil of the sliver coiled in the can is depressed
below the lower edge of the said tube and at the same time caused to expand
so that when the piston rises, the coil, by rebounding, will come into contact with
the lower edge of the said tube v and thus be prevented from re-entering the said

page_text: tube. By this means the space in which the coils are formed is always kept free
and the coils will, by the rotation of the can, form regularly, as the cop increases
in length and the formation of the cop will be regular and uniform throughout.
The bobbin rst rests on the bottom of the can u which is supported on a disc w
provided with a pinion o¹ with which a rack gears so that by imparting recipro-
cating movement to the rack the said can will be caused to rotate alternately in
opposite directions whereby the cop will be formed by coils in reverse directions
which coils will unwind from the bobbin without exerting tension on the sliver.
By the use of this device the slubbing and intermediate roving frames may be
dispensed with.
When in operation the slivers passing between the rubbing surfaces a a and
through guides d in the plate c may be combined as aforesaid so that each com-
bined sliver is fed into its receiver by passing between the roller m and smooth
bar e and down the tube into its can u where it is coiled and compressed on
the bobbin in the manner already described. As the cop increases in length and
weight the friction of the descending plate t of the bobbin is correspondingly
increased by the springs y on the rod s. When the cop is finished the can u
containing the same is removed from the plate w¹, the sleeve v is withdrawn from
the can, which can will then expand, and admit of the bobbin being readily
extracted; the bobbin can then be placed on the rack of the spinning machine.
The arrangement shewn in Figures 6 and 7 is suitable for forming laps or
batts for direct delivery to combing machines. The slivers after passing between
the rubbing leathers a and guides & on the plate c are caused to deviate from a
direct course over a smooth table e, each sliver being directed either from the
left or the right towards one of the teeth of a double separator or rack w².
slivers passing round these teeth move forward in close contact parallel to each
other between rollers i to the lap winding apparatus f g h which draws the slivers
together. I thus obtain laps or batts of uniform construction by the assembling
for example of say 50 to 80 slivers, in a single operation through one machine in
which the drawing rubbing and the final winding are readily effected.
The
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
1. In apparatus of the kind described the combination of a bobbin on which
the slivers are coiled the said bobbin comprising the base plater rods and a
plate sliding frictionally on the rod s as the coils on the bobbin increase the
split can u in which the bobbin is placed and means for imparting to the can and
bobbin a rotary motion alternately in opposite directions substantially as herein-
before described.
2. The combination with the subject matter of the preceding claim of the
device men for feeding the slivers into the split can; the piston o arranged to
slide up and down in the can to compress the coils of sliver as they are formed
on the bobbin, and a sleeve such as 2 for keeping the split can closed and
for retaining the compressed coils of the sliver in position on the bobbin sub-
stantially as hereinbefore described.
3. In apparatus for the purpose hereinbefore described the combination with
the sliver rubbing surfaces such as a of guides d for several slivers, the double
rack or separator and the lap winding apparatus f g h substantially as herein-
before described.
T] 15.
1
1000
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.