IMPROVEMENTS IN MULES FOR SPINNING AND DOUBLING COTTON, WOOL, AND OTHER FIBROUS MATERIALS
Year: 1864

page_text: LETTERS PATENT to John Platt, of Oldham, in the County of Lancaster,
Mechanical Engineer, Eli Spencer, of the same Place, Mechinical Engi-
neer, and John Dodd, of the same Place, Mechanical Engineer, for the
Invention of "IMPROVEMENTS IN MULES FOR SPINNING AND DOUBLING
COTTON, WOOL, AND OTHER FIBROUS MATERIALS."
Sealed the 30th September 1864, and dated the 5th April 1864.
PROVISIONAL SPECIFICATION left by the said John Platt, Eli Spencer,
and John Dodd at the Office of the Commissioners of Patents, with their
Petition, on the 5th April 1864.
We, JOHN PLATT, of Oldham, in the County of Lancaster, Mechanical
Engineer, ELI SPENCER, of the same Place, Mechanical Engineer, and JOHN
DODD, of the same Place, Mechanical Engineer, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN MULES FOR SPINNING AND DOUBLING
COTTON, WOOL, AND OTHER FIBROUS MATERIALS," to be as follows:-
The first part of our Invention relates to an arrangement of mechanism for
putting the backing-off cones in and out of contact. For this
For this purpose wo
employ a lever (the usual backing-off lever, if desired), and as an agent to
act thereon we employ another lever charged with motive power, through the
medium of a spring distended by a cam upon the "cam shaft," and the force
may therefore be put on or released at any desired time. Between these two
levers a block or filling piece is introduced by the "faller lock," and the
spring being then charged, as above described, exerts a pressure tending to

page_text: bring the friction cones into contact, which pressure is allowed to act so soon
as the usual detaining stop is withdrawn ; after this the said block or filling
piece is withdrawn, and the spring will then operate through the medium of
the other end of its lever to withdraw the cones from contact..
Secondly, our Invention consists in an arrangement for gradually traversing
the driving strap from the fast. to the loose pulley. This we effect by the
employment of an incline attached to a lever, and so shaped as to allow the
strap to move at any required speed; but as this incline lever would of itself
be caused to turn by the force of the spring necessarily employed, we combine
therewith a pin deriving rotatory motion from the "twist shaft," which pin
by entering and passing out of a slot acts as a detainer.
Thirdly, our Invention relates to the "jacking" or
twisting-in" motion
of woollen mules. For this purpose we construct the "winding-on drum" in
two parts capable of acting as one or separately. We mount the grooved
pulley for coiling the chain upon the said drum loosely upon the shaft and
provide it with a catch, which takes into a ratchet wheel fast upon the shaft
during the outward run of the carriage and coils the chain upon the winding-
on drum, which is keyed upon the shaft as usual. When the carriage begins
to "jack-in" the click ceases to act on the ratchet wheel, and the drum is
controlled by the "quadrant "chain, which is prevented from turning the
spindles while "jacking-in" by a disc, which keeps the winding click out
of action.
Fourthly, our Invention relates to an arrangement for disengaging the
taking-in friction cones, and consists in the employment of a rod connecting
the usual forked lever and holding-out catch together, and this rod we also
use for disengaging the cones.
Fifthly, our Invention relates to an arrangement for effecting the usual
turning of the rollers backward and forward in woollen mules. Upon the
axis of the front roller we mount a pinion loosely carrying clicks, which drive
right and left-handed ratchet wheels, and through which therefore a turning.
backward or forward of the rollers may be effected accordingly as the one
or the other of the clicks is caused to act. The loose pinion is driven by a
toothed sector, to which motion is communicated by contact with the carriage
when performing its inward motion, and thus a turning of the rollers in one
direction is effected. To a lever projecting from the sector is adapted a rod
which carries a catch and incline, the former of which is drawn by the carriage
on its outward run, and thus a turning of the sector, and consequently of the
rollers in the other direction is effected; but when the desired amount has
been accomplished then the incline arrives in contact with a fixed stud and

page_text: disengaged the sector from the carriage, which sector is thus restored to its
original position. We also connect the driving clicks of the right-handed and
left-handed ratchet wheels with a pin running upon an inclined surface, which
pin can therefore withdraw them at any desired point according to the shape
of the incline, which being adjustable enables us with equal vibrations of the
sector to impart any desired amount of rotation to the rollers.
Sixthly, our Invention relates to an arrangement for stopping the rollers of
woollen mules after they have afforded the desired length of sliver. For this
purpose we use the ordinary lever, which the catch liberates and combine
therwith another lever provided with an incline, which incline shifts the clutch
box on the roller shaft.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Platt, Eli Spencer, and John Dodd in the Great Seal
Patent Office on the 5th October 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
PLATT, of Oldham, in the County of Lancaster, Mechanical Engineer, ELI
SPENCER, of the same Place, Mechanical Engineer, and JOHN DODD, of the
same Place, Mechanical Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of April, in the year of our Lord One
thousand eight hundred and sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said John Platt, Eli Spencer, and John Dodd, Her special license that
we, the said. John Platt, Eli Spencer, and John Dodd, our executors, admi-
nistrators, and assigns, or such others as we, the said John Platt, Eli Spencer,
and John Dodd, 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 MULES
FOR SPINNING AND DOUBLING COTTON, WOOL, AND OTHER FIBROUS MATERIAL,"
upon the condition, amongst others, that we, the said John Platt, Eli
Spencer, and John Dodd, by an instrument in writing under our hands and
seals (or under the hand and seal of one of us), 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 Seál

page_text: Patent Omce within six calendar montus next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said John Dodd, do hereby declare the
nature of our said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say) :—
Our Invention relates, firstly, to an arrangement of mechanism for putting
the backing-off cones in and out of contact.
Secondly, to an arrangement for gradually traversing the driving strap from
the fast to the loose pulley.
Thirdly, to the "jacking" or " twisting" motion of woollen mules:
Fourthly, according to our Provisional Specification our Invention related
to an arrangement for disengaging the taking-in friction cones, and consisted
in the employment of a rod connecting the usual forked lever and holding-out
catch together, which rod we also proposed to use for disengaging the cones;
but since the filing of the said Provisional Specification we have found that
this arrangement was not new, and therefore lay no claim thereto.
Fourthly, our Invention relates to an arrangement for effecting the usual
turning of the rollers backward and forward in woollen mules.
Fifthly, to an arrangement for stopping the rollers of woollen mules after
they have afforded the desired length of sliver.
For the sake of clearness we shall particularly describe the several features
of our Invention separately and distinct from each other, but it will be evident
to all competent persons that two or more of them may be combined in the
same mule when the motions to which they refer are required.
The first of our improvements is shown in the accompanying Drawings at
Figs. 1 and 2; at 1 is the rim shaft, at 2 the backing-off wheel, and at 3, 4,
the friction cones. The backing-off lever is shewn at 5 mounted so as to be
capable of turning upon a centre at 6. Behind this lever is an arm 7, pro-
vided with a hook 7, situate in the same plane as a stud 8 projecting from
the said lever 5; the other end of this arm carries a bow! 9, which rests upon
a cam 10 mounted upon the usual cam shaft 11; this cam we will suppose to
to be the usual strap cam, but it may be another provided for this purpose;
the lever 5 therefore, may, by this cam 10 and hook 7* be prevented, under
circumstances to be hereafter described, from turning upon its centre of
motion 6. At 12 is a short lever mounted upon a centre of motion 13 carried
by a bracket 14, to which lever is attached a chain 15 passing over a pulley 16,
and connected to a spring 17. The pulley 16 is inounted upon a lever 18,
capable of turning upon a centre at 19, and bearing by means of a bowl at its

page_text: other end against the cam 10; as the said cam therefore revolves it presses
downward one end of the lever 18, and by elevating the other, draws upward
the chain 15 and distends the spring 17, thus charging it with power to be
used as will hereafter be described. The upper end of the lever 12 carries a
bowl 20 situate in the same plane as another bowl 21 projecting from the
face of the backing-off lever 5, and seen more particularly in Fig. 2. The
lower end of the lever 12 is provided with a pin 22 projecting therefrom
sufficiently to intercept the line in which the backing-off lever 5 moves when
turned upon its centre of motion 6. At 23 is a rod actuated by the faller
lock, to which rod is connected an arm 24 carrying the filling piece, the shape
of which is shown at the detached view, Fig. 3, which shows it as it would
appear looking on the top of the same part in Fig. 2; this filling piece is
composed of a narrow portion 25, behind which is a double incline 26. The
narrow part 25 is constantly between the two bowls 20, 21, they being at such
an angle to each other as to admit of this position of the part 25 without
separating them. The operation is as follows:-According to the position of
the parts shown in the Drawing the friction cones are out of geer and the
carriage is going in. The chain 15 is distended by reason of the spring 17
baving been charged, which effect has been produced by the greater radius of
the cam 10 having depressed the bowl on the lever 18. At the next change
the cam 10, by bringing its smaller radius against the lever 18, will allow the
spring 17 to collapse and slacken the chain 15; at the same time the cam 10
will have elevated the bowl 9 so as to bring the top of the hook 7* upon the
pin 8, and thus lock the lever 5. The rod 23 is then drawn forward by the
carriage, as will be hereafter described, and the inclines 26 of the filling piece
are thrust between the bowls 20, 21; the result of this will be, that the
lever 12 will be caused to turn upon its centre in the direction of the arrow,
the bowl 21 upon the backing-off lever 5 forming an abutment, which lever is
at this time prevented from turning upon its centre 6 by the hook 7*. These
motions are preparatory to a shifting of the friction cone, and when they have
been accomplished the cam 10 will have rotated so as to have brought an
increasing radius to bear upon the lever 18, by which means the said lever
will be turned upon its centre so as to raise the pulley 16 and chain 15
upward, and charge the spring 17 with power, at the same time the cam 10 will
also have shifted the hook 7* clear of the pin 8; the effect of this will be to
cause the spring 17 to act upon the lever 12, and turn it upon its centre 13
and the bowl 20 thereof through the medium of the filling piece 26 (now
situate between the two bowls) will press against the bowl 21, and turn the
backing-off lever 5 in the direction of the arrow, thus bringing the friction

page_text: cones 3, 4, into geer. It must be remarked, that previously to this turning
of the backing-off lever the lever 12 had been turned by the introduction of
the filling piece in the other direction, so that the pin 22 had been moved
away from the backing-off lever 5, but when the geering of the friction cones
is effected, as above described, the said pin moves again towards the backing-
off lever nearly into the relative position shown in the Drawing. The lever 7
is kept in contact with the cam 10 by a spring. This junction of the cones
having remained for the proper time, a spring 23* will cause the rod 23 to
slide, but in the opposite direction, and thus the filling piece 26 will be with-
drawn from between the bowls 20, 21, in order that the geering of the friction
cones may be removed, and this is accomplished in the following manner :-
The above-mentioned withdrawal of the filling piece 26 will of course leave a
space between the two bowls 20, 21, and the spring 17 being still charged
with power, will exert its elastic force so as to turn the lever 12 upon its
centre 13 again in the direction of the arrow, it being at liberty so to turn by
reason of the above-mentioned space between the two bowls 20, 21. The
effect of this turning of the lever 12 will be to project the pin 22 against the
backing-off lever 5, and thus the said lever will be caused to turn upon its
centre so as to withdraw the friction cones from gear. It has been observed,
that the narrow part 25 of the filling piece is always between the bowls
20, 21; the object of this is merely to secure the entrance of the double
incline 26. A method by which the rod 23 may be caused to slide is shewn
in the detached view, Fig. 2*, drawn on a smaller scale than Figs. 1 and 2.
The rod 23 is mounted on the end of a bell-crank lever 30, one end of which
carries a bowl 31; an incline 32 carried by an arm extending from the faller
lock 33 arrives against the said bowl 31, and by turning the bell-crank
lever 30 upon its centre, causes the required sliding of the rod 23, the return
motion of which is effected when the incline 32 leaves the bowl 31 by the
spring 23*, before mentioned. It will thus be seen that the introduction of
the filling piece 26 is dependent upon the motion of the faller lock.
The second part of our Invention is shewn at Figs. 4 and 5, in which 1 is
the usual fast pulley, and 2 the loose pulley; the strap guide is at 3 mounted
on the end of a lever 4, capable of turning upon a centre at 5. The attach-
ment 6 merely shews the lever 4 as composed of two parts for facility of
adjustment; the lever 4 is continually drawn in the direction of the arrow by
a spring 7, but is prevented from turning in that direction (according to the
position shewn) by the strap guide catch 8. This catch forms one portion of
a bell-crank lever 9, 9*, mounted so as to be capable of turning upon a
centre 10. The part 9* is provided at its upper end with a slot 11, and from

page_text: one side of this slot extends a part 12 formed on its inward side as an incline,
as seen in Fig. 5. The ordinary twist worm is at 13, in gear with which is a
pinion 14, which through the medium of an intermediate 15 imparts rotatory
motion to a pinion 16 mounted upon a shaft 17, which shaft is carried by a
bracket extending from stationary framework. Upon the shaft 17 is fixed an
arm 18 furnished. at its end with a boss 19, through which a pin 20 passes;
the pin 20 has a shoulder against which a spring 21 situate within a recess
formed in the boss 19 presses, and thus the said pin is continually thrust
forward so far as a stop 22 will allow. The operation is as follows:-
According to the position of the parts shewn, the strap is held by the strap
guide 3 on the fast pulley 1, and the said guide is prevented from moving
towards the loose pulley by the catch 8. When, according to the usual
operations of the mule, the twist worm 13 is caused to revolve, rotatory
motion will be imparted by means of the pinions 14, 15, 16, to the shaft 17,
and the arm 18 thereon, together with its pin 20, will be caused to revolve.
This movement will bring the said pin 20 into contact with the incline 12,
whereby it will by thrust backward against the force of the spring 21; but
when the said incline is passed, and the pin 20 has arrived opposite to the
slot 11, then the elastic force of the spring 21 will thrust the pin 20 into the
slot 11, so as to gear it therewith, and a continued motion of the shaft 17, and
consequently arm 18 will cause the pin 20 to act against the part 9*.of the
bell-crank lever 9, 9*, whereby the said lever will be turned upon its centre of
motion 10, and the catch 8 will be gradually moved upward. The side of
this catch which bears against the pin 23 is formed, as seen in the Drawing,
as an incline, and the liberation of the lever 4 to the force of the spring 7 will
be effected at a rate determined by the shape of the said incline, and thus the
driving strap is gradually and at any determined speed shifted from the fast
to the loose pulley. When the time arrives for the strap to be returned to
the fast pulley 1 the pin 20 will leave the slot 11, and the catch 8 will fall on
to the top of the bowl 23, and the said return of the strap is effected by the
usual cam lever 24 acting by means of a pin 25 against the end of the
lever. 4.
The third part of our Invention is shewn at Figs. 6, 7, and 8, in which 1 is
the shaft of the winding-on drum upon which the said drum 2 is keyed fast
and attached to it or to the shaft 1 is a ratchet wheel 3; in gear with this
ratchet wheel are drivers 4, carried by the grooved pulley 5, by which the
winding-on drum is driven, and which pulley runs loosely upon a bush which
supports the shaft 1; 6 is the band employed for turning the pulley 5, and:
passing over rollers 7, and fast. at each end as usual. The winding on chain.

page_text: is shewn at 8, at 9 is the tin drum shaft upon which is mounted fast a ratchet
wheel 10, within the teeth of which a click 11 is capable of passing by the
action of the friction spring 12 when permitted to do so, as will hereafter be
described. This click is mounted upon a disc plate 13 extending from the
boss of the pinion 14 loose on the shaft 9, and which through the medium of
another pinion 15 connects the two shafts 9 and 1 together. The click 11 is
provided with a projecting pin 16, situate at times, and as shewn in the
Drawing, within a dish-formed disc 17, the sides of such dish being inclined,
as seen in the Drawing, and when therefore the parts are in that position the
click 11 is prevented from passing into the teeth of the ratchet wheel 10; upon
the face of the disc 17 is a grooved boss 18, within which is a fork formed
upon a lever 19 capable of turning upon a centre at 20, and carrying at its
lower end a bowl 21, which at times, hereafter to be described, arrives in
contact with an incline 22, by which means the said lever is caused to turn
upon its centre 20, and to slide the disc 17 into contact with the pin 16, as
shewn in the Drawing, but when the bowl 21 leaves the incline 22, then the
elastic force of a spring 23 turns the lever 19 in the other direction, and
withdraws the disc 17 from the pin 16. The incline 22 is continued by a
level portion 23, as seen in the detached plan view, Fig. 8, and the bowl 21 is
therefore provided with a dead run after having been moved by the said
incline. According to the positions of the parts shewn in the Drawing, the
carriage part of which is shewn at 24, is running out, and the pulley 5 is
therefore driven by the band 6 in the direction of the arrow, consequently the
clicks 4 are driving the ratchet wheel 3, and with it the drum 2 to wind on
the chain. The click 11 is out of the teeth of the ratchet wheel 10, and the
disc is brought over the pin 16 as a preparatory motion. Upon the inward
run commencing it is usual in woollen mules to allow it to go on for a certain
time before the backing-off commences, and it is during this time that one
Invention comes into operation. The bowl 21 at the commencement of such
inward motion of the carriage is still on the level run 23, such run being of
such length that the said bowl never goes beyond it in performing the outward
stretch, and it therefore follows that during the jacking-in the several parts
will retain the positions shewn in the Drawing, and consequently no motion
will be imparted to the spindles through the medium of the tin drum. The
reversed motion of the carriage will also have caused the pulley 5 to revolve
in such a direction that the clicks 4 will step over the teeth of the ratchet
wheel 3, and the power formerly used for turning the drum 2 is disconnected,
and thus the "jacking-in" will go on, during which the winding-on chain is.
kept tight by the resistance of the parts which it has to turn, but as the power.

page_text: thus exerted is for the time cut off from the shaft 9 by reason of the click 11
being held out of gear with the ratchet wheel 10, no motion will be imparted
thereby to the spindles, it therefore follows, that by the use of our Invention,
we can avoid the usual slackness of the winding-on chain during "jacking-in,"
and keep it constantly tightened, ready to come into action after the backing-
off has taken place, to effect which the bowl descends the incline 22, thus
allowing the lever 19 to be turned upon its centre by the spring 23, so as to
slide the dish 17 away from the pin 16, and allow it to pass into the teeth of
the ratchet wheel 10, thereby locking the pinion 14 to the shaft 9, and com-
municating motion thereto.
The fourth part of our Invention is shewn at Figs. 9 and 10, and has for
its object, as above mentioned, the turning of the rollers first in one direction
and then in the other, such turnings being independent of that which is
required for the stretch, and which are well known as necessary in woollen
mules. The roller shaft is at 1, upon which is placed loosely a pinion 2 ;
above this pinion is a toothed sector 3, carried by a lever 4, capable of turning
upon a centre at 5. The lower end of this lever is provided with a rod 6,
mounted in guides not seen in the Drawing, which rod carries a catch 7
jointed at 8. Fast with the shaft 1 are two ratchet wheels 8, 9, their teeth
being formed in opposite directions, and in gear with them are drivers 10, 11,
carried by arms projecting from the loose pinion 2, and kept in contact with
the ratchet wheels by friction springs 12, of that description commonly used
in mules. The driver 10 is provided with an arm 11*, which carries a pro-
jecting pin 12, situate according to the position shewn in the Drawing against
an internal disc 13, carried by the bracket 14 which supports the shaft 1.
The operation is as follows:-According to the positions of the parts shewn in
the Drawings the carriage is running in, and so doing will arrive in contact
with the end 4* of the lever 4, thereby causing that lever to turn upon its
centre; this will turn the toothed sector 3 in the direction of the arrow, and
the loose pinion 2 will revolve therewith, and thus the driver 11 will be carried
forward, and impart rotatory motion to the ratchet wheel 9, which being fast
on the shaft 1 will cause it also to revolve, and thus the required delivery of
the sliver will be effected. At the same time also the other driver 10, which
is likewise carried by the pinion 2, will be caused to travel, but as the teeth
of the ratchet 8 are opposite in direction to those of the first-mentioned
ratchet 9, the said driver would slip over the teeth if allowed to fall. During
the above-described motions, however, the pin 12 is in contact with the
stationary disc 13, and the driver 10 is thereby lifted upward clear of the
teeth. When the above-mentioned turning outward of the rollers has taken

page_text: place the driver 10 moving with the pinion 2 will have carried the pin 12
clear of the stationary disc 13, and the said driver will be at liberty to be
forced by its spring into the teeth of the ratchet wheel 8. When the carriage
is running out, a part projecting therefrom will arrive in contact with the
catch 7, by which means the rod 6 will be drawn back again, and the lever 4
will be caused to turn upon its centre in the direction contrary to that above
described; by this means the toothed sector 3 will turn the pinion 2 and driver
10, so as to cause the latter to act upon the wheel 8, the said driver having
been allowed to be forced into the teeth by leaving the stationary disc 13 as
above mentioned. The consequence of this will be a turning of the shaft 1,
and consequently the rollers in a reverse direction, and this motion will
continue until the sector has caused the pin 12 to arrive in contact with an
incline 18* on the disc 13, which by acting thereon will lift the driver 10 out
of the teeth of the ratchet wheel 8, and thus the motion of the rollers will be
arrested. At the same time the incline 7* on the end of the catch 7 will
arrive in contact with a fixed pin, and the said catch will thus be raised from
connexion with the part on the carriage which was acting thereon, and thus
the motion of the sector rack 3 will be determined. The disc 13. together
with the incline 13* is capable of being moved around the shaft 1, so that the
position of the said incline may be varied, in order to afford a greater motion
of the rollers in one direction than in the other.
The fifth part of our Invention is shewn at Fig. 11 and 12, in which 1 is
the roller shaft of a woollen mule, driven from the wheel 2 through the
:medium of the clutch box 3, which clutch box is continually pressed into gear by
a spring 4 mounted upon the shaft 1, and acting against the boss 5. This boss
is embraced by a fork 6 fixed to a lever 7, which is capable of turning upon a
centre at 8, and carries at its upper end a stud 9 fitting into a notch formed
in a lever 10, which lever is mounted upon a centre 11, and thus the clutch,
excepting as hereafter to be mentioned, is prevented from passing out of gear
by the action of the spring 4. Upon the shaft 1 is also mounted another
clutch box. 12, one part of which slides on a key, and is pressed forward by a
spring 13, so as to effect its gearing with the other part, fast with which is a
pinion. taking into a wheel 14. This wheel runs upon a screw 15, and when
therefore it is caused to revolve in the one direction or the other, it will at the
same time move laterally forward or backward upon its centre of motion.
Upon the wheel 14 is mounted a pin 16, capable therefore of acting as a cam
during the revolution of the said wheel. In connexion with the clutch 12 is
a forked bell-crank lever 17, capable of turning upon a centre at 18, and of
being acted upon by an incline 19.formed upon the end of an arm 20

page_text: attached to the lever 7. The operation is as follows:-The rollers are driven
through the medium of the clutch box 3 during the necessary stretch, and at
the same time the pinion 14* being driven by the clutch 12 will impart rotatory
motion to the wheel 14, which running as above described upon the screw 15
will move laterally in the direction of the arrow, and thus cause the pin 16 to
revolve in the same line as the end of the lever 10, with which lever it will
therefore arrive in contact, and cause it to turn upon its centre. This motion
will remove the notch thereof from the stud 9, and the spring 21 will then
cause the lever 7 to turn upon its centre, carrying with it the fork, 6, which by
acting against the boss 5 will move the clutch box 3 out of gear, and thus the
revolution of the roller shaft 1 will be arrested. It is, however, necessary
that the wheel 14 should now be moved laterally in the direction contrary to
the arrow, so as to restore it to its starting position, and this is effected as
follows: Upon the boss of the wheel 14 is wound a cord or chain weighted
so as to impart to the said wheel a tendency to turn backward, that is, in the
direction opposite to that it moved in during the above-mentioned revolution
of the roller shaft, such turning, however, by the weighted cord or chain is
overcome by the power transmitted through the clutch box 12, and is therefore
wound upon the said boss. When, however, the clutch box 3 is separated by
the means above described, this winding power is removed, but it is still
necessary to disconnect the wheel 14 from gear with the roller shaft. This is
effected by the arm 20, which, as the lever 7 turns upon its centre, as above
described, moves onward, and brings the incline 19 to bear against the bell-
crank lever 17, thus causing it to turn upon its centre, and act by means of
its forked end against the boss of the clutch 12, whereby the two portions
thereof are separated, and the pin 16 and wheel 14 are then free to revolve
independently of the roller shaft 1, and this they will do by the action of the
weighted cord or chain, the revolution of the said wheel 14 upon its screwed
axle turning it back laterally, and withdrawing the pin 16 into its starting
position, which position is determined by a stop. The restoration of the
lever 7 to the position shewn is effected by a cam 21 upon the cam shaft.
Having thus described and ascertained the nature of our said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that we claim as secured to us under the above in part recited
Letters Patent,―
Firstly, changing the spring 17, Fig. 1, with power from the cam shaft,
whereby it is enabled to act by such power for putting the friction cones in
and also out of gear. Also the use of the block or filling piece 26.

page_text: Secondly, in reference to Figs. 4 and 5, the combination of the incline 8
with the pin 20 and slot 11.
Thirdly, in reference to Figs. 6, 7, and 8, forming the winding-on drum in
two parts, capable of being connected and disconnected. Also in combination
therewith the use of the ratchet wheel 10 and disc 17.
Fourthly, in reference to Figs. 9 and 10 we claim the turning of the rollers
backward and forward through the agency of one lever, as illustrated at 4.
Fifthly, in reference to Figs. 11 and 12, we claim the incline 19 carried by
the arm 20.
In witness whereof, I, the said John Dodd, hath hereunto set my hand
and seal, this Fourth day of October, in the year of our Lord One
thousand eight hundred and sixty-four.