IMPROVEMENTS IN MACHINERY FOR SPINNING AND DOUBLING
Year: 1872

page_text: LETTERS PATENT to Thomas Henry Rushton, of the Firm of
Messieurs Dobson and Barlow, of Bolton, in the County of Lan-
caster, Machine Maker, and Robert Tonge, of the same Place,.
Foreman, for the Invention of "IMPROVEMENTS IN MACHINERY FOR
SPINNING AND DOUBLING.""
PROVISIONAL SPECIFICATION left by the said Thomas Henry Rushton
and Robert Tonge at the Office of the Commissioners of Patents;
'with their Petition, on the 9th August 1872.
WC, THOMAS HENRY RUSHTON, of the Firm of Messieurs Dobson and -
Barlow, of Bolton, in the County of Lancaster, Machine Maker, and
ROBERT TONGE, of the same Place, Foreman, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN MACHINERY FOR SPINNING
AND DOUBLING," to be as follows :—
=
The object of our Invention is to simplify the gearing of hand and
self-acting-mules-for-producing the after stretch, and for giving motion

page_text: to the front roller during the twisting at the head. On the front roller
coupling shaft is mounted loose a bevel wheel, to which part of a clutch
box is cast, and to the same shaft is connected the sliding part of the
said clutch box; on this is mounted a spur pinion connected to it by
catches. The bevel wheel above referred to is driven by a similar wheel
on the side shaft; to this wheel on the side shaft is fixed a bevel pinion
gearing into a bevel wheel mounted on a stud in the gearing lever, and
this bevel wheel is connected by catches to a spur wheel gearing into the
spur pinion on the sliding part of the clutch box; this spur wheel gears
into the "gain" wheel, to which the pinion for driving the carriage
is fixed.
As long as the clutch box on the front roller shaft is in gear, the
carriage is taken out by the spur pinion and wheels driven by it, above
described, but when the clutch box is opened, the catches in the bevel
wheel come into gcar with the teeth of an internal ratchet wheel cast
on the spur wheel and drives the carriage at the reduced speed for the
after stretch.
By making the spur pinion fast on the sliding part of the clutch box
as now customary, the catches in the bevel wheel also produce the slow
motion required for turning the front drawing roller slowly round whilo
the after stretch is being performed; the catches we prefer to use for
connecting the wheels above referred to are plane angle pointed picces
of metal sliding freely in radial grooves.
Our Invention may be modified by fixing a spur pinion to the bevel
wheel on the front roller connecting shaft, and causing this pinion to
gear into a spur wheel on the stud in the gearing lever, thereby dis-
pensing with the bevel wheel and pinion, or the gearing may be otherwise
modified.
Another part of our Invention is a simple arrangement of catches for
unlatching the "long lever," and it consists of a tumbler latch mounted
on a stud in the latch lever, and this tumbler latch is acted upon by a
slide bar connected to the carriage.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Henry Rushton and Robert Tonge in the
Great Seal Patent Office on the 7th February 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, THOMAS
HENRY RUSHTON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, and ROBERT TONGE,
of the same Place, Foreman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, hearing date the Ninth day of August, in the year of
cur Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Thomas Henry Rushton and Robert Tonge,
Her special licence that we, the said Thomas Henry Rushton and
Robert Tonge, our executors, administrators, and assigns, or such others
as we, the said Thomas Henry Rushton and Robert Tonge, our 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 MACHINERY
FOR SPINNING AND DOUBLING," upon the condition (amongst others), that we,
the said Thomas Henry Rushton and Robert Tonge, our executors or
administrators, by an instrument in writing under our, or their, or one
of our or their hands and seals, 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 Scal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that we, the said Thomas Henry Rushton and
Robert Tonge, do hereby declare the nature of our 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) :-
The object of the first part of our Invention is to simplify the gearing
of hand and self-acting mules for producing the after stretch, and for

page_text: between any two of these snugs the pin projecting from the clutch
box a³ enters, as shewn in Fig. 6. To the mitre wheel b' is cast or fixed
the bevel pinion 63, which gears into the wheel 1, mounted on a stud
fixed in a bracket bolted to the side of the headstock. On the boss of
the bevel wheel is cast or fixed a plate, having eight or other con-
venient number of slots containing the sliding catches, which fall by
their own gravity into gear with the internal ratchet wheel P, cast with
the carrier wheel . On the boss of the bevel wheel is mounted the
gearing lever m, the wheel a' gears into the carrier wheel, which gears
into the change wheel m', mounted on a stud fixed in a segmental slot
in the gearing lever, and the wheel m' is fixed on the boss of the
The end
pinion m², which gears into the wheel c' on the scroll shaft c.
of the gearing lever m rests upon the short arm of the lever n, seen best
in Fig. 3, and the longer arm of the same is acted upon by the stud at
the end of the long lever g.
As long as the clutch box a³ remains in gear with the clutches a³ on
the mitre wheel a', the scroll shaft c is driven, and the carriage is taken
out by the train of wheels a', l', m¹, and pinion m³ gearing into the
wheel c', but when the carriage has arrived near the end of its stretch
and the after stretch is required, the clutch box a³ is drawn out of gear
by the roller gear rod or otherwise, thereby liberating the spur wheel a',
which then runs loose on the boss of the sliding clutch box a³; the
pinion 6* then becomes the driver, and the catches taking into the
ratchet wheel P, cause the wheel to rotate at the proper reduced speed
for driving the scroll shaft during the after stretch. In some cases the
ordinary catches may be used instead of the catches & shown.
On referring to Fig. 6 it will be seen that the pin projecting from the
sliding clutch box a³ is between the two snugs on the disc aº, that are
nearest together in order to start the rollers quickly, but in spinning fine
O numbers it is desirable to start the rollers slower, and for that purpose
the pin must be changed into one of the larger spaces between the snugs,
the greater the space between the snugs and the slower the rollers will
be started.
By making the spur wheel a' fast on the boss of the sliding clutch
5 box a³ by a set screw or otherwise, a slow motion is imparted to the front
roller during the after stretch, and while twisting at the head.

page_text: Our improved arrangement of mechanism for locking the fallers and
for unlatching the long lever, is shown in Figs. 1, 7, and 8; to the sector
and lever e¹ is suspended the faller leg o, which is provided with a slot,
in which a pin p' projecting from the tumbler lever p slides. This
tumbler lever is mounted on a stud projecting from a bracket secured to i
the carriage; in the shorter arm of the tumbler lever p is a stud for the
grooved pulley 22, around which the backing-off chain is taken. Tho
faller leg o has a projection for catching on the bowl projecting from
the usual slide bar 2. To the tumbler lever p is fixed the adjustable
finger p³, which acts when the carriage is out on the incline on the 1
latch; this latch holds down the outer end of the long lever g. When
the carriage is going out the pinion m² is in gear with the wheel c', and
the long lever is held down by the usual catch, and when the carriago
arrives out this catch is moved by a stud as usual, the stud at the
other end of the long lever then acting on the lever n, raises the end of 1
the gearing lever m, and lifts the pinion m³ out of gear with the wheel c¹.
The backing-off chain is then coiled on the scroll i and pulls down the
sector e', thereby raising the faller leg until the projection o' comes over
the bowl in the slide bar ", as shewn in Fig. 7, the backing-off chain
then pulls the projection on to the said bowl, thus moving the tumbler a
lever p, and this motion brings the finger p³ against the incline on the
horizontal arm of the latch 4, the vertical arm of this latch then releases
the end of the long lever g, which replaces the parts into the positions
required for the running-in motion of the carriage.
Our Invention may be modified by fixing a spur pinion to the mitre :
wheel a¹ on the front roller connecting shaft, and causing this pinion to
gear into a spur wheel on the stud in the gearing lever m, thereby dis-
pensing with the bevel wheel and pinion *, or the gearing may be
otherwise modified.

page_text: And lastly. The improved arrangement of mechanism for locking the
fallers and for unlatching the long lever, consisting of the parts marked
o, p, p', and h.
In witness whereof, we, the said Thomas Henry Rushton and
Robert Tonge, have hereto set their hands and seals, this Sixth
day of February, One thousand eight hundred and seventy-three.
THOMAS HENRY RUSHTON. (L.S.)
ROBERT TONGE.
(L.S.)