CERTAIN IMPROVE- MENTS IN MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to James Clough, Foreman, in the employ of Messieurs
Dobson and Barlow, Machine Makers, of Bolton-le-Moors, in the
County of Lancaster, for the Invention of "CERTAIN IMPROVEMENTS IN
Sealed the 4th March 1862, and dated the 19th September 1861.
PROVISIONAL SPECIFICATION left by the said James Clough at the
Office of the Commissioners of Patents, with his Petition, on the 19th
September 1861.
I, JAMES CLOUGH, Foreman, in the employ of Messieurs Dobson and
Barlow, of Bolton-le-Moors, in the County of Lancaster, Machine Makers,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS SUBSTANCES," to
be as follows:-
These improvements are applicable to the machines for preparing cotton
and other fibrous substances, called drawing frames, and they consist in an
improved combination of parts for stopping the frame when a sliver breaks
between the drawing and calender rollers, or between the cams and the
drawing rollers.
In performing our Invention we apply a spout fixed to a balanced lever
above the calender rollers, the fulcrum of this lever is adjustable to suit the
slivers passing through the spout. We also employ a vibrating feeler, which
is jointed to a lever on the ordinary vibrating shaft applied to the back of the
frame, and connected to the spoon stop motion usually employed for stopping
the frame when a sliver breaks between the cams and the drawing rollers.

page_text: As long as the slivers continue to pass through the spout above the calender
rollers the spout is held down, and the lower end of the balanced lever is held
above the feeler; but as soon as one end breaks the spout rises, and the end
of the balanced lever drops into such a position that the feeler strikes against
it, thereby arresting the motion of the vibrating shaft, and moving the driving
strap from the fast to the loose pulley in the usual manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Clough in the Great Seal Patent Office on the
18th March 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
CLOUGH, Foreman, in the employ of Messieurs Dobson and Barlow, Machine
Makers, of Bolton-le-Moors, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of September, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said James Clough, Her special license that I, the said James Clough,
ny executors, administrators, and assigns, or such others as I, the said
James Clough, my executors, administrators, and assigns, should at any
timo agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, aud vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "CERTAIN IMPROVE-
MENTS IN MACHINERY FOR PREPARING COTTON AND OTHER FIBROUS SUBSTANCES,"
upon the condition (amongst others) that I, the said James Clough, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the samo
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after, the date of the
said Letters Patent.
NOW KNOW YE, that I, the said James Clough, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to bo particularly described and ascertained in and by the following
statement (that is to say):-
The nature of my Invention consists in an improved combination of parts

page_text: applicable to drawing frames, or other machines of the like nature used in
preparing cotton and other fibrous substances, for stopping the machine when
a sliver breaks between the front drawing roller and the calender rollers.
And in order that my Invention may be fully understood and readily carried
into operation, I will proceed to describe the accompanying Sheet of
Drawings, reference being had to the figures and letters marked thereon.
Fig. 1 is an elevation of part of a drawing frame of the usual construction,
to which my improvements are applied; Fig. 2 is a plan, and Fig. 3 is a front
view of the same.
a, a, are the ordinary calender rollers; b, b, the drawing rollers; c, the
vibrating or rocking shaft; d, the blade attached to the shaft c by the arms c¹ ;
e, one of the spoons of the usual spoon stop motion, and p, the roller beam to
which the stands and bearings are attached. These parts and all the others
requisite to complete the frame, and which are not particularly referred to
hereafter, are made in any approved manner. The spout or trumpet mouthf
which conveys the slivers from the drawing rollers 6 to the calender rollers a,
as heretofore customary, is, in this instance, cast with the balanced lever f¹, as
shewn detached in two views in Fig. 4. This lever and spout is hinged to
the under side of the bent plate g in the following manner-To the plate g
are cast or fixed two projections g', through each of which passes a set screw
tapped into the plates h, shewn detached in Fig. 6. These plates serve as
bearings for the adjustable plate i, shewn detached in Fig. 5, which is con-
nected to the balanced lever f' by a set screw f. When the parts are
together, as shewn in Figs. 1, 2, and 3, it will be seen that the balance
lever fis hinged to the trunnions i', projecting from the plate i, which is
made with a slot, through which the set screw f³ passes. This slot allows the
fulcrum of the balance lever f' to be adjusted so as to make the longer end
thereof to preponderate more or less over the spout (without the aid of a
moveable balance weight) which is held in position by the sliver, as will be
described hereafter. To the vibrating shaft c are fixed the levers k, to each
of which is jointed one of the feelers m; these feelers bear on the roller
beam P, and pass under the bracket n, to which the bent plates 9 are hinged
in the usual manner. Each bracket has a projection n', through which the
end of the balance lever f' passes. The shaft c is supported in open bearings
and is caused to vibrate by a crank pin projecting from a revolving pinion, in
the ordinary manner. It imparts a corresponding vibrating motion to the.
feelers m, the ends of which are alternately drawn from under the ends of the
levers fand pushed under them. When the machine is in operation and
the spouts or trumpet mouths fare held down by the slivers the lower end of

page_text: cach balance lever f' is held clear of the feeler m, as shown in Fig. 1; con-
sequently the feeler is free to move to and fro without coming in contact with
it, but as soon as a sliver breaks, the spout f being overbalanced by the
preponderating weight of the lever f', rises slightly above the plate 7, and the
end of the lever f' assumes the position indicated by dotted lines in Fig: 1;
that is to say, the lower end descends so far that the feeler m instead of
passing under comes in contact with it. This obstruction to the advance of
the feeler causes the shaft c to riso in its bearings, and in so doing the horse
head or trigger now commonly in use liberates the rod to which the strap fork
is attached, and thus allows the weight forming part of the usual spoon stop
motion to move the driving strap from the fast to the loose pulley. The
position of the fulcrum of the balanced lever f¹ must be changed according
to the thickness of the sliver passing to the calender rollors; for, if the sliver
is coarse and strong, it is evident that the fulcrum of the lever must be
nearer the nip of the rollers a, a, than when the sliver is fine; and the arrange-
ment of the parts shown in Figs. 4, 5, and 6, enable the position of the
fulcrum to be adjusted with the greatest accuracy to suit any description of
sliver. It will also be seen in Fig. 1 that each projection g' is provided with
two slots for the set scrows of the plates h, in order to increase the limits of
adjustment.
Having thus stated the nature of my Invention, and described the manner
of performing the same, I claim,
First, the improved combination of parts, shewn and described, acting in
conjunction with other known parts of drawing frames, or other similar
machines, for stopping them when a sliver breaks between the drawing rollers
and the calender rollers.
And, secondly, I claim the improved mode of hingeing the spout and
balance lever to the plate, whereby the preponderating weight of one end of
the lever can be adjusted and regulated without the aid of a moveable balance
weight.
In witness whereof, I, the said James Clough, have hereunto set my
hand and seal, this Seventeenth day of March, in the year of our
Lord One thousand eight hundred and sixty-two.
JAMES CLOUGH. (L.S.)