IMPROVEMENTS IN DOUBLING AND TWISTING MACHINES
Year: 1883

page_text: LETTERS PATENT to Prince Smith junior Machine Maker and Smith Ambler,
Draughtsman, Burlington Shed, Keighley in the county of York for an
Invention of "IMPROVEMENTS IN DOUBLING AND TWISTING MACHINES
"
PROVISIONAL SPECIFICATION left by the said Prince Smith junior and Smith
Ambler at the Office of the Commissioners of Patents on the 12th January
1883.
. PRINCE SMITH junior machine maker and SMITH AMBLER draughtsman
Burlington shed Keighley in the County of York. "IMPROVEMENTS IN DOUBLING
AND TWISTING MACHINES.
נו
Our improvements relate to devices for automatically stopping the delivery of
the thread or threads of doubling and twisting frames on the rupture or slackening
of a thread or threads or when other irregularities occur thereby preventing
further delivery of the yarn; also in stopping the spindles and lifting the top
delivery roller from contact with the bottom rollers when piecing up, or when
otherwise required.
For this purpose we fit to each spindle of a doubling or twisting frame and on
the top of the front beam roller stands having projecting foot plates which are
made with slot openings for the traverse of a bar which works foward and.
backwards in the opening; the bar extends the length of the frame; the bar is
actuated by three or more eccentrics and rods and the eccentrics are secured on a
centre shaft fitted near the side centre of the frame and extending the length of
the frame; the abaft works both sides of the frame; the oscillating, bar is driven
from the centre shaft actuated by pullies or gearing and so arranged that when
the frame is stopped or started it does not break down all the ends. On the top
of the projecting foot plates we fit slides having lugs between which are placed
levers having the back arms weighted and made or fitted with bent pins or hooks
and the front arms are made with heads in which are secured pot eyes or twizzles;
pins are passed in the bosses of the levers and through the lugs on which the levers
work; near the back end of the slides are fitted or cast wedges or inclines which

page_text: are for the purpose of lifting up semi-circular traps which on the slackening or
breakage of a thread or threads coming from a bobbin or bobbins automatically
comes in contact with a stud or roller under which passes the thread or threads,
stopping any further delivery of the yarn; the foot plates are made in the front
with guards to prevent the levers through which passes or pass the thread or
threads to the cap, flyer, or ring, dropping lower than required. Over the back
end of each foot plate and slide is fitted a standard fitted with a sliding block in
which is fitted a spiral spring which acts on the trap and the back of cach standard
is made with a head in which is secured the stud or roller under which passes the
threads coming from the bobbins; the tension of the thread or threads keeps the
front arm of the weighted lever down and the bent pin or hook of the back arm
from contact with the travelling bar.
Should a thread or threads break or become slack and the tension be removed
from the weighted lever, the back weighted arm at once drops and the bent pin or
hook comes in contact with the travelling bar which actuates the slide and forces
the incline or wedge under the friction roller fitted to the slide block bringing tho
trap firmly pressed on the threads passing under the stud or roller and at once
stopping any further delivery of the yarn coming from the bobbin or bobbins.
For fine strong threads we employ two weighted lovers instead of one and tho
heads of the front arms are fitted with twizzles or pot eyes and the threads after
passing through the twizzles or pot eyes pass through an opening made in the
head to the cap, flyer or ring.
To piece up quickly, we employ an apparatus which lifts up the top delivery
roller and at the same time stops the revolving of the spindle.
For this purpose at the back of the top spindle rail and for each spindle we fit
levers working on a stud secured to the spindle rail, the top arm of the lever is
made with a break which coming in contact with the surface formed on the spindle
wharle, stops the spindle; the bottom arm of the break lever. is fitted to a link
which is secured and works on the end of a rod which is connected to a short
back arm of a treadle, the treadle lever is secured on a shaft fitted near the bottom
and in front of the frame; the rod attached to the back arm of the treadle is
made with a projecting piece to which is secured a rod, the top head of which is
fitted to a boss formed on the slide of the top delivery roller, so that when piecing
up or at any required time, the operator places his foot on the treadle lifts up the
rod which forces the break against the wharle stopping the spindle and the same
action lifts the top delivery roller from contact with the bottom delivery roller and
when the thread or threads is or are pieced up the oporator removes his foot from
the treadle and the break is at once removed from the wharle and the top delivery
roller comes in contact with the bottom roller.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Prince Smith junior and Smith Ambler in the Great Seal Patent
Office on the 22nd June 1883.
PRINCE SMITH junior Machine Maker and SMITH AMBLER Draughtsman,
Burlington Shed Keighley in the county of York " IMPROVEMENTS IN DOUBLING
AND TWISTING MACHINES
15
Our improvements relate to devices for automatically stopping the delivery of
the thread or threads of doubling and twisting frames on the rupture or slackening
of a thread or threads or when other irregularities occur, thereby preventing further
delivery of the yarn; also in stopping the spindles and lifting the top delivery
roller from contact with the bottom rollers when piccing up or when otherwise
required.
For this purpose we fit to each spindle of a twisting or doubling frame and on
the top of the front beam, roller stands having projecting foot plates which are
made with slot openings for the traverse of a bar which works forward and back-
ward in the openings; the bar extends the length of the frame. The bar is
actuated by three or more eccentrics and rods and the eccentrics are secured on a
centre shaft fitted near the side centre of the frame and extending the length of
the frame; the shaft works both sides of the frames. The oscillating bar is driven
from the centre shaft actuated by pullies or gearing and so arranged that when the
frame is stopped or started it does not break down all the ends.
On the top of the projecting foot plates we fit slides having lugs between which
are placed levers having the back arms weighted and made or fitted with bent pins
or hooks and the front arms are made with heads in which are secured pot eyes or
twizzles; pins are passed in the bosses of the levers and through the lugs on
which the levers work; near the back ends of the slides are fitted or cast wedges
or inclines which are for the purpose of lifting up semi-circular traps which on the
slackening or breakage of a thread or threads coming from a bobbin or bobbins
automatically comes in contact with a stud or roller under which passes the thread
or threads, stopping any further delivery of the yarn; the foot plates are made in
the front with guards to prevent the levers through which passes or pass the
thread or threads to the cap, flyer, or ring dropping lower than required. Over the
back end of each foot plate and slide is fitted a standard fitted with a sliding block
in which is fitted a spiral spring which acts on the trap and the back of each
standard is made with a head in which is secured the stud or roller under which
pass the threads coming from the bobbins; the tension of the throad or threads
keeps the front arm of the weighted lever down and the bent pin or hook of the
back arm from contact with the traversing bar.
Should a thread or threads break or become slack and the tension be removed
from the weighted lever, the back weighted arm at once drops and the bent pin or
hook comes in contact with the traversing bar which actuates the slide and forces
the incline under a friction roller fitted to the slide block bringing the trap firmly
pressed on the threads passing under the stud or roller and stopping at once any
further delivery of the yarn coming from the bobbin or bobbins. For strong
threads we employ two weighted levers instead of one and the heads of the front
arms are fitted with twizzles or pot eyes and the threads after passing through the
twizzles or pot eyes pass through an opening made in the head to the cap flyer or
ring. To piece up quickly we employ an apparatus which lifts up the top
delivery roller and at the same time stops the revolving of the spindle. For this
purpose at the back of the top spindle rail and for each spindle we fit levers
working on a stud secured to the spindle rail, the top arm of the lever is made
with a break which coming in contact with the surface formed on the spindle

page_text: wharlo stops the spindle; the bottom arm of the break lever is fitted to a link
which is secured and works on the end of a rod which is connected to a short back
arm of a treadle; the treadle lever is secured on a shaft fitted near the bottom and
in front of the frame; the rod attached to the back arm of the treadlo is made
with a projecting piece to which is secured a rod the top head of which is fitted to
a boss formed on the slide of the top delivery. roller, so that when piecing up or at
any required time the operator places his foot on the treadle lifts up the rod which
forces the break against the wharlo stopping the spindle and the same action lifts
the top delivery roller from contact with the bottom delivery roller and when the
thread or threads is or are pieced up the operator removes his foot from the treadle
and the break is at once removed from the wharle and the top delivery roller
comes in contact with the bottom roller.
In order to enable our invention to be fully understood we will proceed to
describe the same by reference to the accompanying drawing in which figuro 1,
represents part of a side elevation of a twisting or doubling frame with our 1
improvements fitted thereto; figure 2, is a front view of part of a twisting or
doubling frame and figure 3, a plan with our improvements; figure 4, represents
an enlarged view of the standard, sliding block, spiral spring and trap. Similar
letters of reference in all the figures represent similar parts. A, shews part of a
frame of a doubling or twisting machine having on the top of the front beam B,
roller stands C made with projecting foot plates D and with openings E for the
traverse of an oscillating bar F, which works forward and backward in the opening,
the bar F, is driven from the centre shaft actuated by pullies or gearing or by three
or more eccentrics so arranged that when the frame is stopped or started it does not
break down all the ends. On the top of each foot plate D, is fitted a slide G
having lugs H between which is placed a lever I having the back arm J weighted.
and made with a bent end K or with a bent pin or hook; the lever I is fitted with
a pot eye L or with a twizzle, and works on a pin M; on the slide G is cast an
incline N which on coming in contact with the roller O (see figure 4, drawn to an
enlarged size) lifts up the head or semi-circular trap P, so that on the slackening or a
breakage of a thread or threads Q coming from a bobbin or bobbins the trap P
automatically comes in contact with the roller or pin R under which passes or pass
the thread or threads thereby stopping any further delivery of the yarn; the
rollor R works on a pin S secured in a bracket or standard T which is made with
a box U in which works a sliding block V which carries the roller R; over the 3
sliding block V and in the box U is fitted a spiral spring W in which is passed the
pin X of the semi-circular head or trap P. The slide G is mado with a projecting
end Y to prevent the lever I dropping lower than required on the slackening or
breakage of a thread or threads and the tension of the thread or threads keeps
down the lever I and keeps up the bent end K from contact with the traversing
or oscillating bar F.
Should a thread or threads become slack or break and the tension be removed
from the lever I the weighted arm J at once drops and the bent end K comes in
contact with the traversing bar F which actuates the slide G and forces the
incline N under the roller Olifting the same up and bringing the semi-circular
head or trap P so that it will firmly press on the thread or threads passing undor
the roller R and at onco stopping any further delivery of the yarn coming from a
bobbin or bobbins; for fine strong threads, we employ two weighted levers Ĭ instead
of one; the heads are fitted with pot eyes L or twizzles.
To piece up quickly we employ an apparatus which lifts up the top delivery 5
rollers A', and at the same time stops the revolving spindles B'.
To each spindle and at the back of the top spindle rail C¹, we fit a lever D¹,
working on a stud E', the top arm of the lever is made with a break F¹ which
coming in contact with the surface G₁ of the wharle H', stops the spindle B¹; the
bottom arm of the lever D', is secured to a link I which is fitted to the head J¹ 5
of a rod K³, connected to a short arm L', of a treadle M²; to the head J', is also

page_text: connected a rod N', the top of which is fitted on a pin secured in a boss O¹, formed
on a lug P¹, cast on the block Q' of the top delivery roller A'.
When piecing up or at any other required time the attendant places his foot on
the treadle M, thereby lifting up the rods K', and N¹, forcing the break F¹, against
the surface G', of the wharle H, stopping the spindle B', and at the same time
lifting up the top delivery roller A from contact with the bottom delivery
roller R¹.
When a thread or threads has or have been pieced up, the attendant removes his
foot from the treadle and the break is at once removed from contact with the
wharle and the top delivery roller A' comes in contact with the bottom delivery
roller R' and the doubling or twisting operation is proceeded with.
Having thus described our invention and the best means we are acquainted with
for carrying the same into effect we would have it understood that we do not
confine ourselves to the precise details shewn and described as they may be varied
without departing from the peculiar character of the invention but what we do
claim is :-
Firstly. The combination of parts forming the improved apparatus for auto-
matically stopping the delivery of a thread or threads in doubling and twisting
machines and preventing further delivery of yarn on the rupture or slackness of a
thread or threads or when other irregularities occur substantially as hereinbefore
described and illustrated in the accompanying drawing.
Secondly. The construction and employment of the herein described improved
apparatus for stopping the spindles and lifting the top delivery rollers from contact
with the bottom delivery rollers when piecing up or when otherwise required the
said apparatus being arranged and operating substantially as herein before described
and represented in the accompanying drawing.
In Witness whereof wo the said Prince Smith junior and Smith Ambler
have hereto set our hands and seals this fourteenth day of June in the
year of our Lord one thousand eight hundred and eighty three
Witness
WALTER JAS. TURNER. C.E.
Patent Agent
Bradford
PRINCE SMITH J (L.S.)
SMITH AMBLER
(L.S.)