IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED IN SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1881

page_text: LETTERS PATENT to Matthew Dickie, the younger, of Stockport, in the County
of Chester, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
APPARATUS EMPLOYED IN SPINNING AND DOUBLING COTTON AND OTHER
FIBROUS SUBSTANCES."
"
PROVISIONAL SPECIFICATION left by the said Matthew Dickie at the
Office of the Commissioners of Patents on the 17th November 1881.
MATTHEW DICKIE, the younger, of Stockport, in the County of Chester.
IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED IN SPINNING
AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES."
This Invention is applicable to machines known as throstles and doubling
frames, the object of the Invention being to prevent the waste occasioned by what
are known as "roller laps," that is, the lapping of the yarn round the roller
whenever an end breaks.
The principal feature of this Invention is that whenever an end or thread
breaks the bobbin or spool from which that end proceeds is immediately prevented
from revolving, and no further delivery of that particular end or thread can take
place until it is "pieced-up" and consequently no roller-lap" can be formed and
the waste of yarn is thus materially lessened. A further advantage is that no
other part of the machine is stopped, and hence a great economy of time and labour
is effected.
Above the roller beam of the machine and beneath or behind the rollers I
mount a long shaft or rod, upon which are a number of light balanced levers, one
to each end or thread.
The forward end of each lever is supported by the tension of the thread, and
it will consequently fall down whenever its particular end or thread breaks.
Each bobbin or spool is provided with a projecting arm, pin, or other equivalent

page_text: device against or in contact with which the backward arm of the balanced lever
rises whenever its forward end falls through the breakage or absence of an end or
thread, and thus whenever an end or thread breaks or is otherwise absent its
balanced lever falls and the backward arm thereof comes into contact with the
projection from the corresponding bobbin or spool, and thus prevents the further
delivery of that particular end or thread until it has been pieced-up again, whilst
the whole machine (with this exception) continues its operation without
intermission.
A suitable contrivance is employed for lifting all the balanced levers up at
once and holding them in that position whilst doffing or when otherwise required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Matthew Dickie in the Great Seal Patent Office on the 16th May
1882.
MATTHEW DICKIE, the younger, of Stockport, in the County of Chester.
"IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED IN SPINNING
AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES."
This Invention is applicable to machines known as throstles and doubling
frames, the object of the Invention being to prevent the waste occasioned by what
are known as "roller-laps," that is, the lapping of the yarn round the roller
whenever an end breaks.
The principal feature of this Invention is that whenever an end or thread breaks
the bobbin or spool from which that end proceeds is immediately prevented from
revolving, and no further delivery of that particular end or thread can take place
until it is "pieced-up," and consequently no roller-lap" can be formed, and the
waste of yarn is thus materially lessened.
A further advantage is that no other part of the machine is stopped, and hence
a great economy of time and labor is effected.
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 be 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 illustrating the application of my
Invention to cotton doubling frames, Fig. 1 being a vertical section of the upper
part of a doubling frame known as a "porcupine "creel, and Fig. 2 a similar view
of an "upright creel" with my Invention applied thereto.
Above the roller beam a, a, of the machine, and beneath or behind the rollers
b, b, I mount a long shaft or rod c, c, upon which are a number of light balanced
levers d, d, one to each doubled end or thread.
The forward end of each lever d, d, is supported by the tension of the thread e, e,
at any point between the rollers and the spindle, and it will consequently fall
down whenever its particular end or thread breaks.
Each bobbin or spool f, f, is provided with a projecting arm, pin, or other equi-
valent device (small staples g, g, being shown in the Drawing) against or in
contact with which the backward arm of the balanced lever d, d, rises whenever
its forward end falls through the breakage or absence of an end or thread e, e, and
thus whenever an end or thread breaks or is otherwise absent its balanced lever
d, d, falls and the backward arm thereof comes into contact with the projection g,g,
from the corresponding bobbin or spool, and thus prevents the further delivery of
that particular end or thread until it has been pieced up again, whilst the whole
machine (with this exception) continues its operation without intermission.
I may here observe that in some cases I provide each lever with two or more
prongs at the backward end, so as to stop two or more spools or bobbins at once,
or one prong may be so arranged as to stop the bobbin.
A suitable contrivance is provided for lifting all the balanced levers d, d, up
at once, and holding them in that position whilst doffing or when otherwise
required.
In the "porcupine" frame (Fig. 1) this contrivance is arranged, as shown
enlarged at Fig. 3. Connected to the long rod c, c, and fastened to one of the bars
of the creel is a light frame h, h, supporting a similar rod i, i, and two wiresk, k*;
on the rod i are placed a series of short levers l, l.
These levers are mounted loosely on the rod, and are connected thereto by pins
and slotted bosses so as to be able to turn partly independent of the rod. When

page_text: in the position shown in Fig. 1 all the levers d, d, are in working order and free to
oscillate on the breaking of an end, but on turning the shaft i, i, by hand over
into the position shown at Fig. 3, all the short levers l, l, will press back their
corresponding balanced levers d, d, against the back wire k, l, and hold them all
out of operation, whilst the doffing and piecing-up is being effected.
When the rod i, i, is in the intermediate position (that is, with the pins pointing
downwards) any one of the levers 1, 1, can be thrown back, so as to hold its
corresponding balanced lever out of action without affecting any of the others.
In the upright creel (Fig. 2) a simple contrivance (see Fig. 5) is employed,
which consists of a series of levers m, m, supporting wires n.
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 the above
described apparatus or any mere modification thereof for preventing "roller laps'
by stopping the revolution of the bobbin or bobbins whenever an end or thread
breaks.
"
In witness whereof, I, the said Matthew Dickie, the younger, have hereunto
set my hand and seal, this Fifteenth day of May, in the year of our Lord
One thousand eight hundred and eighty two.