IMPROVEMENTS IN MACHINES FOR DOUBLING AND SPINNING
Year: 1874

page_text: LETTERS PATENT to John Brown Moscrop, of Red Lumb Mills,´ near
Rochdale, in the County of Lancaster, Spinner and Manufacturer,
for the Invention of "IMPROVEMENTS IN MACHINES FOR DOUBLING AND
SPINNING."
PROVISIONAL SPECIFICATION left by the said John Brown Moscrop
at the Office of the Commissioners of Patents, with his Petition,
on the 5th March 1874.
I, JOHN BROWN MOSCROP, of Red Lumb Mills, near Rochdale, in the
5 County of Lancaster, Spinner and Manufacturer, do hereby declaré the
nature of the said Invention for "IMPROVEMENTS IN MACHINES FOR DOUBLING'
AND SPINNING," to be as follows:-
This Invention is applicable to the ordinary throstle doubling and
spinning machines, and it consists in certain improved combinations of
O machinery for preventing the lapping of the yarn round the delivering,,
drawing, or clearing rollers when an end breaks.

page_text: In performing my Invention (I will describe its application to a
throstle doubling frame) I apply a stop motion to each feed roller of
each spindle, and when an end breaks the top roller of the feed roller is
raised in the following manner:-A plate with a broad slot in it rests
upon the feed roller and the top roller which bears upon the feed roller
to carry the yarn forward fits in the said broad slot, at the outer end of
the plate is a narrow slot fitting on guide studs. So long as the doubled
yarn continues to be wound on the spindle it is drawn over the end of
the plate and holds it in position, but when the end breaks the plate is
drawn forward by the friction of the feed roller, and the edge of the slot
coming between the feed roller and top roller raises the latter and stops
the supply of yarn, thereby preventing laps. A similar arrangement of
parts with the requisite modifications is applicable to throstle spinning
frames.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Brown Moscrop in the Great Seal Patent
Office on the 3rd September 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BROWN MOSCROP, of Red Lumb Mills, near Rochdale, in the County of
Lancaster, Spinner and Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of March, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Brown Moscrop, Her special
licence that I, the said John Brown Moscrop, my executors, admi-
nistrators, and assigns, or such others as I, the said John Brown
Moscrop, my executors, administrators, and assigns, should at any time
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, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN MACHINES FOR DOUBLING AND SPINNING," upon the
condition (amongst others) that I, the said John Brown Moscrop,. my
executors or administrators, by an instrument in writing under my,

page_text: or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manneṛ
the same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent..
NOW KNOW YE, that I, the said John Brown Moscrop, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement (that is to say):-
i
This Invention is applicable to the ordinary throstle doubling and
spinning machines, and it consists in certain improved combinations of
machinery for preventing the lapping of the yarn round the delivering,
drawing, or clearing rollers when an end breaks.
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.
Fig. 1 is an elevation of part of an ordinary throstle doubling frame
to which my improvements are applied. " is the delivering or feed
roller; b, the top roller; c, the cap bar; d, the rail with the glass studs;
e, the rail with the guide hooks; and f, the flyers, all of which are made
as usual; g is a plate made of brass or other metal or material shewn
detached in Fig. 2; this plate is made with a slot rather broader than
the top roller and it rests upon the roller a; at the other end of the
plate is the narrow slot g' which fits on the stud c¹ fixed in the cap bar c.
The yarn in passing from the roller a to the guide wires e presses against
the cross bar g² of the plate g and holds the plate in the position shewn
in Fig. 1, but when an end breaks the plate g being no longer held back
by the yarn is drawn forward by the friction of the roller a, and the
tapered edge g³ of the slot then enters between the rollers a and b and
raises the top roller b which then ceases to carry forward the yarn,
thereby preventing laps.
Fig. 3 is a front view and Fig. 4 a sectional elevation of a modification
of my Invention. In this arrangement the plate g shewn detached in
Fig. 5 is made without the cross bar g² before described, and the plate g
instead of being held back by the yarn acting on the said cross bar is
held back by the wire bridle / which is hinged to the brackets c² screwed

page_text: to the cap bar c; the brackets c² are slotted so that the pressure on the
yarn may be regulated if desirable by raising or lowering them. The
action of this arrangement is similar to that described in reference to
Figs. 1 and 2; the yarn in passing from the roller a to the guide hooks e
holds the bridle h down,.as shewn in Fig. 4, but when the yarn breaks
the bridle is swivelled partly round by the advance of the plate g. A
similar arrangement of parts with the requisite modifications is applicable
to throstle spinning frames.
Having thus stated the nature of my Invention, and described two
convenient modes of carrying the same into operation, I wish it to be
understood that I do not limit myself to the details given as they may
be varied, and what I claim is, causing the plate g or its equivalent to
rest upon the roller a or a corresponding roller, the friction of which
roller causes the plate to advance when the yarn breaks and thus lifts
the top roller to stop the supply, thereby preventing laps: "
In witness whereof, I, the said John Brown Moscrop, have hereto
set my hand and seal, this First day of September, One thousand
eight hundred and seventy-four.