IMPROVEMENTS IN SPINNING MACHINERY
Year: 1882

page_text: This Specification was, upon the 4th day of April 1887, Amended under
Sections 18 to 21 of the latents, Designs, and Trade Marks Act, 1883.
LETTERS PATENT to Benjamin Alfred Dobson, of the Firm of Dobson and
Barlow, Machine Makers, Bolton, Edward Gillow, Foreman, and David
Davies, Mill Manager, both of Bolton, for an Invention of "IMPROVEMENTS
IN SPINNING MACHINERY."
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson,
Edward Gillow, and David Davies at the Office of the Commissioners of
Patents on the 23rd January 1882.
BENJAMIN ALFRED DOBSON, of the Firm of Dobson & Barlow, Machine Makers,
Bolton, EDWARD GILLOW, Foreman, and DAVID DAVIES, Mill Manager, both of
"IMPROVEMENTS IN SPINNING MACHINERY."
Bolton.
Our improvements consist firstly in an improved method of regulating the drag
or tension of the yarn during the process of spinning on ring and traveller throstle
frames which we effect by means of drag plates or rings or wire curls or forks fixed
on a rail or bar held in supports fixed to the lifting rail cross heads or other method
of fixing so as to obtain the same reciprocating movement given to the ring rail.
The distance of these drag regulators from the ring rail may be varied but we
prefer a distance of 4 to 5 inches.
For the purpose of allowing the doffing of the full bobbins we connect the bars
holding the regulators by couplings and allow them to swivel in the supports and
by means of a handle at one or both ends the regulators can be moved clear of the
bobbins. In a frame having spindles on two sides of the machine both regulator
bars may be moved by one handle by means of proper connections.
When the machine is winding the yarn on to the bottom or lower part of the
spindle or on to the larger diameter of the cone of the cop or bobbin the tension
being less the yarn expands or balloons and the regulators which have a distance
inside about equal to the diameter of the ring employed for spinning prevent the
yarn ballooning beyond this diameter and putting on some some more drag or
tension on the yarn regulate the winding. We can thus spin with lighter
travellers and place our spindles closer together with the same diameter of ring.

page_text: .
There may be one or more of these regulators of the same or varying diameters
or of various depths.
Secondly, to lay the fibres of yarn when spinning we place between the drawing
rollers and the point of the spindles of spinning machines a roller revolving in
bearings and the lower portion of which is made to run in a trough containing
water or any liquid the thread touches the upper part of the roller which revolving
smoothes and lays the loose fibre.
Thirdly, in spinning spindles known as the Dobson-Marsh when used for
spinning on paper tubes placed on the spindle we doff the full bobbins without
breaking the threads between the ring and the rollers by winding a few turns of
yarn on to the sleeve above the warve. The sleeve is corruated and has one or
more slots cut through the corrugated part to allow the accumulated yarn to be
easily cut-off.
Fourthly, to prevent loss of twist in ring spinning frames, when starting the
frame, we apply a catch box on the front roller between the driving wheel and the
fluted roller, inside this catch or clutch box on the roller is keyed a disc having
projections at varying distances which serve by a snug on the catch box to drive
the roller which is severed about this point. A spring connects both parts of the
catch box.
When the frame is stopped the spring pulls back the loose part of the catch box
as far as the distance between the projections on the disc will allow and when the
frame is started the roller will not move until the snug comes again in contact
with the front projection of the disc.
As stated the distance may be varied by placing the snug of the catch box in
one of the various spaces of the disc.
This catch box may be placed on the tin roller shaft between the pulley and the
wheel driving the front roller.
Tiftlily An improved-clearer for spinning machine top rollers.
In the clearer known as conical or travelling" we make-a double cone the
larger diameter in the centre in the interior is a conical hole the smaller part of
which is in the centre; a ball of some heavy material is loose in the hole or tube
thus formed.
When the travelling cone arrives at the extremity of the fluted rollers wo
raise the small end in front either by an inclined plane or other means and the
ball rolling down the interior tube thus inclined changes the direction of the
travelling until it is again changed at the other extremity of the fluted rollers.
We may make the clearer travel in either direction and when the large diameter
of the cone advances the small end should be depressed.
Sixthly. For the purpose of piecing broken ends on spinning or doubling
machines we employ a method of stopping the revolution of the spindle. We place
a stud having a pointed double incline at the lower part, on the rail in which the
spindles are fastened and on this stud a lever with a double inclined recess to
correspond with the stud incline, the one end of the lever projects beyond the
edge of the rail and the other which may be furnished with a brake of wood
leather or other material is between the two spindles. By pressing sideways with
the knee or foot or hand the spindle may be stopped for the purpose of piecing
the ends broken.
By our arrangement any one of two spindles may be stopped.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Benjamin Alfred Dobson, Edward Gillow, and David Davies in
the Great Seal Patent Office on the 19th July 1882.
BENJAMIN ALFRED DOBSON, of the Firm of Dobson and Barlow, Machino
Makers, Bolton, EDWARD GILLOW, Foreman, and DAVID DAVIES, Mill Manager,
both of Bolton. "IMPROVEMENTS IN SPINNING MACHINERY.”
Our improvements consists firstly in an improved method of regulating the drag
or plate or fork and method of mounting the same our object being to regulate the tension
of the yarn during the process of spinning on ring and traveller throstle frames
which we effect by means of the improved drag plates or rings or wire curts or forks
are fixed on a rail or bar held in supports fixed to the lifting rail cross heads or
other method of fixing so as obtain the same reciprocating movement given to the
ring rail. The distance of these drag regulators from the ring rail may be varied but
we prefer a distance of four to five inches.
For the purpose of allowing the offing of the full bobbins we connect the bars
holding the regulators by couplings and allow them to swivel in the supports and
by means of a handle at one or both ends the regulators can be moved clear of the
hobbins. In a frame having spindles on two sides of the machine both regulator
bars may be moved by one handle by means of proper connections.
When the machine is winding the yarn on to the bottom or lower part of the
spindle or on to the larger diameter of the cone of the cop or hobbin the tension
being less the yarn expands or balloons and the its drug regulators which haves a
distance inside about equal to the diameter of the ring employed for spinning
prevents the yarn ballooning beyond, this diameter and putting on some more drag
or tension on the yarn regulates the winding. We can thus spin with lighter
travellers and place our spindles closer together with the same diameter of ring.
There may be for each spindle one or more of these drag regulators of the same or
varying diameters or of various depths.
Secondly, in laying the fibres of yarn when spinning. We place between the
drawing rollers and the print of the spindles of spinning machines a plain or fluted
roller revolving in bearings and the lower portion of which is made to run in a
trough containing water or any liquid the thrend touches the upper part of the
roller which revolving emoothes and lays the loose fibre.
Thirdly, in spinning spindles known as the Dobson Marsh when used for spin-
ning on paper tubes placed on the spindle. We doff the full bobbine without
breaking the the threads between the ring and the rollers by winding a few turns
of yarn on to the cleeve above the warve. The sleeve is corrugated and has one
or more slots ent through the corrugated part to allow the accumulated yarn to be
easily cut off.
Fourthly, Secondly in preventing loss of twist in ring spinning frames when
starting the frames. We apply catch boxes on the front rollers, or instead of placing
catch boxes on the front rollers we fit a catch box on the tin roller shaft between the

page_text: driving wheel and the driving pulley inside this catch box or clutch on the tin
roller shaft is keyed a disc having projections at varying distances which serve by
a snug on the catch box to drive the tin roller shaft. A spring presses one part of
the catch box towards the other.
When the frame is stopped the spring pulls back the loose part of the catch box
as far as the distance between the projections on the disc will allow and when the
frame is started the roller will not move until the snug comes again in contact with
the front projection of the disc. As stated, the distance may be varied by placing
the snug of the catch box in one of the various spaces of the disc.
Fifthly Thirdly in an improved clearer for spinning machine top rollers. We
make an improved conical or "travelling" clearer in the form of a double cone the
largest diameter of which is in the middle: in the interior we make a hole tapering
froin each end the smallest part of which is in the middle: we place a ball of some
heavy material loose in the hole or tube thus formed; this ball will remain at and
depress one end or the other of the clearer, and the clearer will travel in the direction
of the end thus depressed which bears on the fluted rollers.
When the travelling cono arrives at the extremity of the fluted rollers we raise
the small end in front either by an inclined plane or other means and the ball
rolling down the interior of the tube thus inclined to the other end of the clearer
changes the direction of the travelling until it is again changed in a similar way
at the other extremity of the fluted rollers.
Sixthly Fourthly For the purpose of piccing broken ends on spinning or
doubling machines we employ a method of stopping the revolution of the spindle.
We place a stud having a pointed double incline at the lower part on the rail in which
the spindles are fitted and on this stud a lever with a double inclined recess to corre-
spond with the stud incline, the one end of the lever projects beyond the edge of
-the-rail-and-the other which may be furnished with a brake of wood, leather or
other material is between the two spindles. By pressing sideways. with the knee
or foot or hand the spindle may be stopped for the purpose of piecing the ends
broken.
By our arrangement any one of two spindles may be stopped.
And in order that our invention may be fully understood and readily carried into
effect we will describe the accompanying four sheets of drawings reference being
had to the figures and letters marked thereon.
Fig. 1. is an end elevation. Fig. 2 is a front elevation and Fig. 3 is a plan of
part of a ring spinning frame to which the first part of our invention is
applied.
a a are the drag plates (shown only on Fig. 3) and a' a' are the forks fixed on
the bar held in bearings in the brackets c fixed to the lifting rail crossheads c':
on the bar is fitted a handle by which it is turned to move the drag plates a or
forks a clear of the hobbins is a retaining catch to keep the bar and drag plates
steady while the machine is at work.
Fig. 4 shows part of a frame to which the second part of our invention is applied.
e is the roller which rotates in euitable bearings and is driven from the front roller
by gears or otherwise:-/ is the trough containing liquid in which the lower portion
of the roller turus: the liquid is supplied to the yarn by the upper portion of the
roller thereby smoothing it and Inving the fibres.
Fig 5 shows a Dobson Murah spindle to which the third part of our invention is
applied.
The ring g is shown in dotted lines: h is the corrugated sleeve on which a few
turns of yarn are wound previons to dolling, in the sleeve we make one or there
slots which the knife enters when the necumulated yarn is being cut off.
Figs. 4 and 5 are views of part of a ring spinning frame to which the fourth
second part of our invention is applied.
i is the tin roller shaft: j is the tin roller wheel which gives motion to the gearing
of the frame, the wheel jis loose on the shaft and on it is cast or fixed one half
of a catch box, the other half of the catch box is also loose on the shaft i; inside

page_text: may bo
the catch box on the shaft is keyed the disc & on which are projections ¹ ** (see
Fig. 6) the projection when in contact with a projection on the catch box j
serves to drive the catch box and wheel j. The projections on the disc
any desired distance from each other to regulate the time at which the front roller
shall be started after the tin roller has commenced to revolve: the catch box has
a grooved boss which receives a stud or projection that is connected by levers³
to the strap fork lever which withdraws the catch box j from the catch on the
wheel when the strap is moved on to the loose pulley: to the grooved boss of j¹
is fixed a short lever connected to a spring that passes round and is fastened to
a grooved pulley fixed on the shaft i, this spring turns the catch box j¹ part of a
revolution till the projection in the catch box comes against the projection
(see Fig. 6) on the disc : when the strap is moved from the fast pulley on to the
i
loose pulley and when the machine is again started motion is not communicated
to the fluted rollers till after the spindles have been started: by this means loss
of twist is prevented. A spring connected to one of the levers 3 causes the
clutch to engage with the clutch when the strap is moved from the loose to the
fast pulley.
Fig. 7 is an end elevation and Fig. 108 is a plan of part of a spinning machine
to which the fifth third part of our invention is applied.
is the tapered travelling clearer which moves longitudinally in the direction of
its end which rests on the fluted rollers tt, the largest diameter of the clearer is in
contact with the back roller t, there is a sliding levers fitted in a bracket s' near
each end of the fluted rollers tt: on the lever is fixed a pin and it is raised by
a pin on the worm wheel driven by a worm on the back roller: the pin i
comes in contact with the pin to lift the levers and the lever falls by its own
gravity when the pin is moved away from the pin s². Each levers is moved up
and down continuously: when the clearer has travelled far enough for its leading
end to come in contact with the levers the leading end is raised by the lever when
it rises and the ball y rolls down the hole inside the clearer and depresses its end
furthest from the lever s, the clearer then travels in the direction of the end so
depressed, which rests on the rollers till it arrives at the other end of the rollers
when the clearer is again reversed by a similar levors; these operations are repeated
so long as the machine is in motion.
Figs. 9 and 10 show part of a spinning or doubling machine to which the sixth
fourth part of our Invention is applied.
to is a stud in a projecting portion w' of which is a V shaped recess: is a lever
fitted on the stud wc, passing through a slot in the lever is a brake piece of wood
or other substance secured by a set screw a²: on the lever a is a taper projection
which rests in the recess in 20: when the lever is pressed sideways the part ¹ is
brought in contact with the warve of either spindle which may be thus immediately
stopped the taper projection on the lever entering the recess in the part of the
stud c causes the brake to leave the warve when the pressure ceases.
:
We are aware that drag regulators for the preventing of ballooning have been already
used and that drag regulators such as rings or wire curls fired on bars mounted on
pokers or rods connected to the ring rail and operated from the lifting rail shaft so as to
rise and full at the same time as the lifting rail are shown and described in Christie's
specification No. 13325 A.D. 1850 and we wish it to be understood that we do not claim
anything described or shown in the said specification as the essential feature of the first
part of our Invention consists of an open drug plate or fork which does not interfere with
the operation of piecing up the ends and is so hinged or mounted that it may be readily
mored away from the spindle to facilitate doffing.
Having stated the nature of our invention and described the manner of performing
the same.
We declare that we claim.
1-The mechanism for reculating the tunsion
the

page_text: 2 The roller turning in a trough containing liquid as and for the purpose
described.
2 The slot or slots in the sleeve / as and for the purpose described.
4 2-The improved mechanism for preventing loss of twist as shown and described
in reference to Figs. 6. 47, 5 and § 6.
3. The travelling clearer and the sliding levers as and for the purpose .set
forth.
64. The improved brake lever æ herein described and shown.
In witness whereof I the said Benjamin Alfred Dobson for myself and on
behalf of the said Edward Gillow and David Davies have hereunto set my
hand and seal this fifteenth day of July One thousand eight hundred and
eighty two.

page_text: LETTERS PATENT to Benjamin Alfred Dobson, of the Firm of Dobson and
Barlow, Machine Makers, Bolton, Edward Gillow, Foreman, and David
Davies, Mill Manager, both of Bolton, for an Invention of "IMPROVEMENTS
IN SPINNING MACHINERY."
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson,
Edward Gillow, and David Davies at the Office of the Commissioners of
Patents on the 23rd January 1882.
BENJAMIN ALFRED DOBSON, of the Firm of Dobson & Barlow, Machine Makers,
Bolton, EDWARD GILLOW, Foreman, and DAVID DAVIES, Mill Manager, both of
Bolton, "IMPROVEMENTS IN SPINNING MACHINERY,"
Our improvements consist firstly in an improved method of regulating the drag
or tension of the yarn during the process of spinning on ring and traveller throatle
frames which we effect by means of drag plates or rings or wire curls or forks fixed
on a rail or bar held in supports fixed to the lifting rail cross heads or other method
of fixing so as to obtain the same reciprocating movement given to the ring rail.
The distance of these drag regulators from the ring rail may be varied but we
prefer a distance of 4 to 6 inches.
For the purpose of allowing the doffing of the full bobbins we connect the bars
holding the regulators by couplings and allow them to swivel in the supports and
by means of a handle at one or both ends the regulators can be moved clear of the
bobbins. In a frame having spindles on two sides of the machine both regulator
bars may be moved by one handle by means of proper connections.
When the machine is winding the yarn on to the bottom or lower part of the
spindle or on to the larger diameter of the cone of the cop or bobbin the tension
being less the yarn expands or balloons and the regulators which have a distance
inside about equal to the diameter of the ring employed for spinning prevent the
yarn ballooning beyond this diameter and putting on some some more dmg or
tension on the yarn regulate the winding. We can thus spin with lighter
travellers and place our spindles closer together with the same diameter of ring.

page_text: There may be one or more of these regulators of the same or varying diameters
or of various depths.
Secondly, to lay the fibres of yarn when spinning we place between the drawing
rollers and the point of the spindles of spinning machines a roller revolving in
bearings and the lower portion of which is inade to run in a trough containing
water or any liquid the thread touches the upper part of the roller which revolving
smoothes and lays the loose fibre.
Thirdly, in spinning spindles known as the Dobson-Marsh when used for
spinning on paper tubes placed on the spindle we doff the full bobbins without
breaking the threads between the ring and the rollers by winding a few turns of
yarn on to the sleeve above the warve. The sleeve is corrugated and has one or
more slots cut through the corrugated part to allow the accumulated yarn to be
easily cut-off.
Fourthly, to prevent loss of twist in ring spinning frames, when starting the
frame, we apply a catch box on the front roller between the driving wheel and the
fluted roller, inside this catch or clutch box on the roller is keyed a disc having
projections at varying distances which serve by a snug on the catch box to drive
the roller which is severed about this point. A spring connects both parts of the
catch box.
When the frame is stopped the spring pulls back the loose part of the catch box
as far as the distance between the projections on the disc will allow and when the
frame is started the roller will not move until the snug comes again in contact
with the front projection of the disc.
As stated the distance may be varied by placing the snug of the catch box in
one of the various spaces of the disc.
This catch box may be placed on the tin roller shaft between the pulley and the
wheel driving the front roller.
Fifthly An improved clearer for spinning machine top rollers.
In the clearer known as conical or "travelling" we make a double cone the
larger diameter in the centre in the interior is a conical hole the smaller part of
which is in the centre; a ball of some heavy material is loose in the hole or tube
thus formed.
When the travelling cone arrives at the extremity of the fluted rollers we
raise the small end in front either by an inclined plane or other means and the
ball rolling down the interior tube thus inclined changes the direction of the
travelling until it is again changed at the other extremity of the fluted rollers.
We may make the clearer travel in either direction and when the large diameter
of the cone advances the small end should be depressed.
Sixthly. For the purpose of piecing broken ends on spinning or doubling
machines we employ a method of stopping the revolution of the spindle. We place
a stud having a pointed double incline at the lower part, on the rail in which the
spindles are fastened and on this stud a lever with a double inclined recess to
correspond with the stud incline, the one end of the lever projects beyond the
edge of the rail and the other which may be furnished with a brake of wood
leather or other material is between the two spindles. By pressing sideways with
the knee or foot or hand the spindle may be stopped for the purpose of piecing
the ends broken.
By our arrangement any one of two spindles may be stopped.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Benjamin Alfred Dobson, Edward Gillow, and David Davies in
the Great Seal Patent Office on the 19th July 1882.
BENJAMIN ALFRED DODSON, of the Firm of Dobson and Barlow, Machine
Makers, Bolton, EDWARD GILLOW, Foreman, and DAVID DAVIES, Mill Manager,
both of Bolton. IMPROVEMENTS IN SPINNING MACHINERY."
"E
Our improvements consist firstly in an improved method of regulating the drag
or tension of the yarn during the process of spinning on ring and traveller throstle
frames which we effect by means of drag plates or rings or wire curls or forks fixed
on a rail or bar held in supports fixed to the lifting rail cross heads or other method
of fixing so as obtain the saine reciprocating movement given to the ring rail. The
distance of these drag regulators from the ring rail may be varied but we prefer a
distance of four to live inches.
For the purpose of allowing the doffing of the full bobbins we connect the bars
holding the regulators by couplings and allow them to swivel in the supports and
by means of a handle at one or both ends the regulators can be moved clear of the
bobbins. In a frame having spindles on two sides of the machine both regulator
bars may be moved by one handle by means of proper connections.
When the machine is winding the yarn on to the bottom or lower part of the
spindle or on to the larger diameter of the cone of the cop or bobbin the tension
being less the yarn expands or balloons and the regulators which have a distance
inside about equal to the diameter of the ring employed for spinning prevent the
yarn ballooning beyond this diameter and putting on some more drag or tension on
the yarn regulates the winding. We can thus spin with lighter travellers and place
our spindles closer together with the same diameter of ring.
There may be one or more of these regulators of the same or varying diameters
or of various depths.
Secondly, in laying the fibres of yarn when spinning. We place between the
drawing rollers and the point of the spindles of spinning machines a plain or fluted
roller revolving in bearings and the lower portion of which is made to run in a
trough containing water or any liquid the thread touches the upper part of the
roller which revolving smoothes and lays the loose fibre.
Thirdly, in spinning spindles known as the Dobson-Marsh when used for spin-
ning on paper tubes placed on the spindle. We doff the full bobbins without
breaking the the threads between the ring and the rollers by winding a few turns
of yarn on to the sleeve above the warve. The sleeve is corrugated and has one
or more slots cut through the corrugated part to allow the accumulated yarn to be
easily cut off.
•
Fourthly, in preventing loss of twist in ring spinning frames when starting the
frames. We apply catch boxes on the front rollers, or instead of placing catch
boxes on the front rollers we fit a catch box on the tin roller shaft between tho
driving wheel and the driving pulley inside this catch box or clutch on the tin
roller shaft is keyed a disc having projections at varying distances which serve by
a snug on the catch box to drive the tin roller shaft. A spring presses one part of
the catch box towards the other.
When the frame is stopped the spring pulls back the loose part of the catch box
as far as the distance between the projections on the disc will allow and when the
frame is started the roller will not move until the snug comes again in contact with
the front projection of the disc. As stated, the distance may be varied by placing
the snug of the catch box in one of the various spaces of the disc.

page_text: Fifthly, in an improved clearer for spinning machine top rollers. We make an
improved conical or "travelling" clearer in the form of a double cone the largest
diameter of which is in the middle: in the interior we make a hole tapering from
each end the smallest part of which is in the middle: we place a ball of some
heavy material loose in the hole or tube thus formed; this ball will remain at and
depress one end or the other of the clearer, and the clearer will travel in the direction
of the end thus depressed which bears on the fluted rollers.
When the travelling cone arrives at the extremity of the fluted rollers we raise
the small end in front either by an inclined plane or other means and the ball
rolling down the interior of the tube thus inclined to the other end of the clearer
changes the direction of the travelling until it is again changed in a similar way
at the other extremity of the fluted rollers.
Sixthly, For the purpose of piecing broken ends on spinning or doubling
machines we employ a method of stopping the revolution of the spindle. We place
a stud having a pointed double incline at the lower part on the rail in which the
spindles are fitted and on this stud a lever with a double inclined recess to corre-
spond with the stud incline, the one end of the lever projects beyond the edge of
the rail and the other which may be furnished with a brake of wood, leather or
other material is between the two spindles. By pressing sideways with the knee
or foot or hand the spindle may be stopped for the purpose of piecing the ends
broken.
By our arrangement any one of two spindles may be stopped.
And in order that our invention may be fully understood and readily carried into
ect we will describe the accompanying four sheets of drawings reference being
had to the figures and letters marked thereon.
Fig 1. is an end elevation. Fig. 2 is a front elevation and Fig. 3 is a_plan_of
part of a ring spinning frame to-which-the-first part of our invention is
-applied-
'
a a are the drag plates (shown only on Fig. 3) and a¹ a¹ are the forks fixed on
the bar b held in bearings in the brackets c fixed to the lifting rail crossheads c³:
on the bar b is fitted a handle b' by which it is turned to move the drag plates a or
forks a¹ clear of the hobbins: 62 is a retaining catch to keep the bar and drag plates
steady while the machine is at work.
Fig. 4 shows part of a frame to which the second part of our invention is applied.
e is the roller which rotates in suitable bearings and is driven from the front roller
by gears or otherwise: is the trough containing liquid in which the lower portion
of the roller turns: the liquid is supplied to the yarn by the upper portion of the
roller thereby smoothing it and laying the fibres.
Fig. 5 shows a Dobson-Marsh spindle to which the third part of our invention is
applied.
The ring g is shown in dotted lines: is the corrugated sleeve on which a few
turns of yarn are wound previous to doffing, in the sleeve we make one or more
slots which the knife enters when the accumulated yarn is being cut off.
Figs. 6 and 7 are views of part of a ring spinning frame to which the fourth part
of our invention is applied.
i is the tin roller shaft: j is the tin roller wheel which gives motion to the gearing
of the frame, the wheel j is loose on the shaft i and on it is cast or fixed one half
of a catch box, the other half of the catch box j¹ is also loose on the shaft i; inside
the catch box on the shaft i is keyed the disck on which are projections ki k² (see
Fig. 8) the projection k¹ when in contact with a projection on the catch box j
serves to drive the catch box and wheel j. The projections on the disc k may be
any desired distance from each other to regulate the time at which the front roller
shall be started after the tin roller has commenced to revolve: the catch box j¹ has
a grooved boss which receives a stud or projection that is connected by levers,
to the strap fork lever which withdraws the catch box j' from the catch on the
wheel when the strap is moved on to the loose pulley: to the grooved boss of j
is fixed a short lever connected to a spring that passes round and is fastened to

page_text: a grooved pulley fixed on the shaft i, this spring turns the catch box j part of a
revolution till the projection in the catch box comes against the projection **
(see Fig. 8) on the disc : when the strap is moved from the fast pulley on to the
loose pulley and when the machine is again started motion is not communicated
to the fluted rollers till after the spindles have been started: by this means loss
of twist is prevented. A spring connected to one of the levers causes the
clutch j¹ to engage with the clutch j when the strap is moved from the loose to the
fast pulley.
Fig. 9 is an end elevation and Fig. 10 is a plan of part of a spinning machine to
which the fifth part of our invention is applied.
is the tapered travelling clearer which moves longitudinally in the direction of
its end which rests on the fluted rollers tt, the largest diameter of the clearer is in
contact with the back roller t¹, there is a sliding lovers fitted in a bracket a' near
each end of the fluted rollers tt: on the levers is fixed a pin s' and it is raised by
a pin u on the worm wheel v driven by a worm v' on the back roller: the pin u
comes in contact with the pin s to lift the lever 8 and the lever falls by its own
gravity when the pin u is moved away from the pin 8. Each lever a is moved up
and down continuously: when the clearer has travelled far enough for its leading
end to come in contact with the levers the lending end is raised by the lever when
it rises and the ball y rolls down the hole inside the clearer r and depressos its end
furthest from the lever 8, the clearer then travels in the direction of the end so
depressed, which rests on the rollers tt till it arrives at the other end of the rollers
when the clearer is again reversed by a similar levers; these operations aro repeated
so long as the machine is in motion.
Figs. 11 and 12 show part of a spinning or doubling machine to which the sixth
part of our Invention is applied.
w is a stud in a projecting portion w¹ of which is a V shaped recess: x is a lever
fitted on the stud w, passing through a slot in the lever is a brake piece of wood
or other substance a secured by a set screw x³: on the lever is a taper projection
which rests in the recess in wl: when the lever is pressed sideways the part x' is
brought in contact with the warve of either spindle which may be thus immediately
stopped: the taper projection on the lever entering the recess in the part of the
stud w causes the brake to leave the warve when the pressure ceases.
Having stated the nature of our invention and described the manner of performing
the same.
We declare that we claim.
1-The mechanism for regulating the tension of the yarn during spinning
substantially as described and as shown on Figs 1, 2 and 3.
2. The roller e turning in a trough containing liquid as and for the purpose
described.
3-The slot or slots in the sleeve has and for the purpose described.
4-The improved mechanism for preventing loss of twist as shown and described
in reference to Figs. 6. 7, and 8.
5. The travelling clearer r and the sliding levers as and for the purpose set
forth.
6. The improved brake lever x herein described and shown.
In witness whereof I the said Benjamin Alfred Dobson for myself and on
behalf of the said Edward Gillow and David Davies have hereunto set my
hand and seal this fifteenth day of July One thousand eight hundred and
BEN. ALF. DOBSON. (Ls.)