CERTAIN IMPROVEMENTS IN SELF-ACTING Mana W DATTING
Year: 1874

page_text: LETTERS PATENT to John Clegg, of Oldham, in the County of
Lancaster, in the Employ of Messieurs Asa Lees and Company,
Limited, for the Invention of "CERTAIN IMPROVEMENTS IN SELF-ACTING
Mana
W DATTING"
Sealed the 1st May 1874, and dated the 5th March 1874.
PROVISIONAL SPECIFICATION left by the said John Clegg at the
Office of the Commissioners of Patents, with his Petition, on the
5th March 1874.
.
I, JOHN CLEGG, of Oldham, in the County of Lancaster, in the Employ
of Messieurs Asa Lees and Company, Limited, do hereby declare the
nature of the said Invention for "CERTAIN IMPROVEMENTS IN SELF-ACTING
MULES FOR SPINNING AND DOUBLING," to be as follows:-
These improvements relate to those mules in which a rocking shaft is
employed for connecting the backing-off and taking-in motions, and it
.consists in an improved combination of machinery for dispensing with
the said rocking shaft, and for so connecting the backing-off and taking-
in levers that the taking-in motion cannot commence before the backing-
off is completed..

page_text: The taking-in lever is provided with a projection overhanging the
drawing-out lever, and, the taking-in lever is prolonged and has a stud
resting upon a catch on the backing-off lever. During the operation of
drawing out the carriage the projection on the taking-in lever rests upon
the drawing-out lever, thus holding the taking-in friction box out of
gear. When the drawing out is completed the cam shaft changes and
the drawing-out lever drops and leaves the stud in the taking-in lever
resting on the catch of the backing-off lever. When the backing-off is
completed the backing-off lever in taking the backing-off friction cone
out of gear removes the catch from under the stud and allows the
taking-in lever to drop, thus putting the taking-in friction cone into
gear. When the taking in is completed the cam shaft performs another
change, and in lifting the drawing-out lever into gear it also lifts (by
means of the projection above referred to) the taking-in lever out of
gear.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Clegg in the Great Seal Patent Office on the
27th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
CLEGG, of Oldham, in the County of Lancaster, Foreman, in the Employ
of Messieurs Asa Lees and Company, Limited, 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 Clegg, Her special licence that
I, the said John Clegg, my executors, administrators, and assigns, or
such others as I, the said John Clegg, 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 "CERTAIN IMPROVEMENTS IN SELF-
ACTING MULES FOR SPINNING AND DOUBLING," upon the condition (amongst
others) that I, the said John Clegg, my executors or administrators, by

page_text: an instrument in writing under my, or their, or one of their hands
and scals, should particularly describe and ascertain the nature of the
said Invention, and in what manner 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 immediately after the date of the said
Letters Patent.
NOW KNOW. YE, that I, the said. John Clegg, 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) :-
These improvements relate to those mules in which a rocking shaft is
employed for connecting the backing-off and taking-in motions, and it
consists in an improved combination of machinery for dispensing with
the said rocking shaft and for connecting the backing-off, drawing-out,
and taking-in levers, so that the taking-in motion cannot commence
before the backing-off is completed, nor the drawing out before the
taking in is completed, thereby preventing accidents.
And in order that my Invention may be fully understood, I will
proceed to describe the accompanying Sheet of Drawings.
Fig. 1 is a side élevation; Fig. 2, a front view; and Fig. 3, a plan of
part of a self-acting mule to which my improvements are applied.
a is the rim band pulley shaft; a¹, the backing-off wheel; a³, the
backing-off friction cone; b, the shaft for the backing-off lever 6'; c is
the cam shaft, and c¹ the cam acting on the drawing-out lever d; è, tho
shaft of the taking-in friction box e¹; and fis the taking-in. lever in
which is a fork entering into the groove in the boss of the taking-in
friction box e¹; g is the holding out catch placed near the front of the
headstock. The parts above enumerated are similar to those in ordinary
use, but certain additions constituting my improvements are made to
the levers band f. To the backing-off lever 6' is fixed the catch 62 upon
which the stud ffixed to the taking-in lever frests, this lever is also
provided with a projection f which rests upon the drawing-out lever d,
as shewn best in dotted lines in Fig. 1. The taking-in lever fis pulled
down by the spring f, and it is connected by the link to the elbow
lover, the. horizontal arni of which is connected by the link /¹ to the
holding out catch g.

page_text: The parts are shewn in the positions they occupy when the carriage
is going out, and during the operation of drawing out the projection f³
on the taking-in lever frests upon the drawing-out lever d, thus holding
the taking-in friction box e¹ out of gear. When the drawing out is
completed the cam shaft c changes and the cam c¹ causes the drawing-
out lever d to drop and leaves the stud f¹ in the taking-in lever resting
on the catch 6% of the backing-off lever b. When the backing off is
completed the backing-off lever bin taking the backing-off friction
cone a² out of gear removes the catch b² from under the stud f¹ and
allows the taking-in lever f to drop, thus putting the taking-in friction
cone c¹ into gear. When the taking in is completed the cam shaft c
performs another change, and in lifting the drawing-out lever d into
gear it also lifts (by means of the projection f above referred to) the
taking-in lever fout of gear.
By means of these improvements the construction of the machine is
simplified as the rocking shaft heretofore employed is dispensed with,
and the backing-off, drawing-out, and taking-in levers are so connected
that the taking-in motion cannot commence before the backing-off is
. completed, nor can the drawing-out motion commence before the taking.
in motion is completed.
Having thus stated the nature of my Invention, and described the
manner of performing the same, I wish it to be understood that I do not
intend to limit myself to the details given as the same may be varied or
modified, but what I claim as my improvements in self-acting mules for
spinning and doubling is the improved mode of connecting the backing-
off, drawing-out, and taking-in levers, whereby the taking-in motion.
cannot commence before the backing-off is completed, and the drawing-
out motion cannot commence until the taking-in motion is completed.
In witness whereof, I, the said John Clegg, have hereto set my
hand and seal, this Twenty-fourth day of August, One thousand
eight hundred and seventy-four.