Improvements in Means for Facilitating the Spinning of Textile Fibres:
Year: 1895

page_text: Date of Application, 12th Nov., 1895
Complete Specification Left, 12th Aug., 1896-Accepted, 24th Oct.. 1896
PROVISIONAL SPECIFICATION.
Improvements in Means for Facilitating the Spinning of Textile
Fibres:
We RICHARD TODD of Heather Bank, Broomfield Road, Heaton Chapel, in
the County of Lancaster, Manufacturer, and JESSE AINSWORTH STOTT of,
5 Cross Street, Manchester, in the aforesaid county, Architect, do hereby declare
the nature of this invention to be as follows :-
Our invention relates to improved means for spinning yarns upon the bare
spindle of the ordinary diameter in frames principally of the throstle type. In the
specification of an invention for which Letters Patent were granted to one of the
present applicants viz. the aforesaid Richard Todd, a ferrule or ring is described-
fitting the spindle loosely and carrying an elastic or rigid arm with an eye through
which the yarn passes to the cop or spindle. Under our present improvements
the said eye is formed of an elongated "C" shape the front closed curve of the
loop through which the yarn passes being shorter and lighter than the back open
or free end. The object of thus giving weight to the rear of the eye is to ensure
that the heavier end will always through the centrifugal force lie outwards and so
keep the arm or whip traveller from twisting and catching the cop. In the said
prior specification the ring or ferrule is provided at the foot with bent fingers,
two being the most suitable number, which fingers run in a race formed in a
socket ring the said socket ring being carried in a lifting rail or part beneath
the cop.
Under the construction set forth in the said prior specification, these fingers
had to be bent as they were being introduced into the race in the socket ring and
this is a source of trouble and uncertainty which interferes with the economical
use of the invention.
Our present invention refers inter alia to the employment of means whereby the
fingers on the ferrule can be properly bent and shaped before being placed in the
race of the carrying ring. To effect this we form the carrying ring or its cap or
cover in such a manner as to admit the bent fingers. For instance we might
make the ring with a gap or gaps filled by a removable cod piece or cod pieces
which could be easily taken out to admit the bent fingers and then be replaced.
We might also as an alternative slit the cap or ring with an inclined slit or slits
trending in the direction of revolution of the spindle and slip the fingers into
working position through this slit or these slits or we might make the ring of the
cap in two or more parts. Instead of forming the carrying or socket ring as a
separate body, we might-form it in the thickness of the rail by suitable boring or
cutting tools. A bush in the foot of the socket might carry the requisite raised
rib at the foot, or this might also be formed from the material of the rail. The
caps or covers are held down on the sockets or rail by spring or other suitable
clamps or holders.
To obtain concentricity of the spindle with the socket ring and the confiuing
sleeve or curb ring set forth in the aforesaid prior specification of Richard Todd
we prefer to make the ring which carries the said curbing sleeve easily adjustable
horizontally on the top lifting rail, so that the sleeves can be set absolutely
concentric with the spindles. Or we may make the confining sleeve or curb ring
fixed and the socket ring adjustable horizontally. Therefore in setting the

page_text: The
spindles of a frame made according to our invention we adjust the bolster of the
spindles in the fixed rail so as to be concentric with the socket rings in the lower
lifting rail and in which the fingers of the ferrule run, and we then adjust the
confining sleeve or curb ring to be concentric with the spindles or vice versa.
adjustment and fixing of the sleeves is most easily effected by having broad headed
screws in the rail each of which laps over the flanges of two adjacent rings so as to
bind the same when adjustment has been effected. We might however use any
other suitable clamps or holders.
In carrying our invention into effect we harden and polish the interior of the
aforesaid curb aleeves thereby reducing the friction between the sleeve and the
arm of the whip traveller. By having spindles of the ordinary size the interior of
the sleeve is not so extended as to cause excessive friction.
In spinning cops and especially when spinning upon the bare spindle as has
been carried into effect by us, it is desirable to have a very quick reversal of
the copping motion at the cop tip. At present the copping cam operates the
rising and falling rail lever and mechanism from a bowl running on the face of
the cam.
The rotundity of this bowl is an obstacle to obtaining the sudden drop which is
necessary to effect the desired quick reversal, because the round bowl instead of
dropping smartly rolls over the edge of the break in the cam surface. To help
this we use a steel blook having a flat face and sharp corner placed side by side
with the bowl. The cam face is also made broader for a small portion of the
circumference so as to provide a resting surface for the block. The bowl rolls
on the cam as usual until it encounters the break, when the block takes the.
weight from the bowl and rests on the cam surface completing the raising of the
rails and remaining in contact with the can surface until exactly the point of
reversal is reached, whereupon the corner of the block passes the edge of the
break in the cam and in a moment the rails drop, the reversal of the copping
motion being sudden and sharp. Thus a very ueat, clear, firm and sharp cop tip
is obtained. In the case of long frames where the weight of the rails is so
considerable that so sudden a drop of both rails at once, might injuriously shake.
the frame, we suddenly drop the under rail only at the moment of reversal the
two rails then descending together at a less pace. To do this we provide a second
cam operating a second lever and working secondary lifting levers pivotted on the
ordinary lifting levers. The rails are mounted separately on internal and external
carrying pokers and are separated by suitable springs. As the rails are raised!
the lower rail acquires a somewhat quicker lift from the said additional cam and
the springs between the rails are compressed when the rails reach the top of their
lift. At this point the reversal of both rails takes place but the release of the
lower rail allows the compressed springs to jerk it downward and away from the
upper rail, the fall being limited by a cottar fixed in the inner poker and passing
through slots in the side of the outer poker, or by the second cam lever striking
the smaller diameter of the second cam and we may soften this blow by a suitable
air cushion, cylinder and piston. The two rails then complete their descent at an
equal pace.
By this arrangement the frame is saved from the shock which would probably.
occur in long frames were both rails suddenly dropped at the same time. When
working under the latter arrangement the ordinary bowl may be used with the
ordinary copping cam as no sudden reversal of the upper rail is required.
Dated this 11th day of November 1895.
'

page_text: Improvements in Means for Facilitating the Spinning of Textile
Fibres.
We RICHARD TODD of Heather Bank, Broomfield Road, Heaton Chapel, in
the County of Lancaster, Manufacturer, and JESSE AINSWORTH STOTT of
5 Cross Street, Manchester, in the aforesaid county, Architect, do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement and accompanying drawings
-
Our invention relates to improved means for spinning yarns upon the bare
spindle of the ordinary dianieter in frames principally of the throstle type. In
the specification of an invention for which Letters Patent were granted to one of
the present applicants viz. the aforesaid Richard Todd, a ferrule or ring is
described, fitting the spindle loosely and carrying an elastic or rigid arm with an
eye through which the yarn passes to the cop or spindle. Under our present
improvements the said eye is formed of an elongated "C" shape, the front closed
curve of the loop through which the yarn passes being shorter and lighter than
the back open or free end. The object of thus giving weight to the rear of the
eye is to ensure that the heavier end will always through the centrifugal force, lie
outward and so keep the arm or whip traveller from twisting and catching the
yarn. In the said prior specification the ring or ferrule is provided at the foot
with bent fingers, two being the most suitable number, which fingers run in a race
formed in a socket ring the said socket ring being carried in a liſting rail or part
beneath the cop.
Under the construction set forth in the said prior specification, these fingers
had to be bent as they were being introduced into the race in the socket ring and
this is a source of trouble and uncertainty which interferes with the economical
nsc of the invention.
Our present invention refers inter alia to the employment of means whereby the
fingers on the ferrule can be properly beat and shaped before being placed in the
race of the carrying ring. To effect this we form the carrying ring or its cap or
cover in such a manner as to admit the bent fingers. For instance we might make
the ring with a gap or gaps filled by a removable cod piece or cod pieces which
could be easily taken out to admit the bent fingers and then be replaced. We
might also as an alternative slit the cap or ring with au inclined slit or slits
trending in the direction of revolution of the spindle and slip the fingers into
working position through this slit or these slits or we might make the ring or the
cap in two or more parts. Instead of forming the carrying or socket ring as a
separate body, we might form it in the thickness of the rail by suitable boring or
cutting tools. A bush in the foot of the socket might carry the requisite raised
rib at the foot, or this might also be formed from the material of the rail. The
caps or covers are held down on the sockets or rail by spring or other suitable
clamps or holders.
To obtain concentricity of the spindle with the socket ring and the confining
sleeve or curb ring set forth in the aforesaid prior specification of Richard Todd,
we prefer to make the ring which carries the said curbing sleeve easily adjustable
horizontally on the top lifting rail, so that the sleeves can be set absolutely
concentric with the spindles. Or we may make the confining sleeve or curb ring
fixed and the socket ring adjustable horizontally. Therefore in setting the spindles
of a frame made according to our invention we adjust the bolsters of the spindles
in the fixed rail so as to be concentric with the socket rings in the lower lifting
rail (and in which the fingers of the ferrule run) and we then adjust the confining

page_text: sleeves or curb rings to be concentric with the spindles or vice versa. The adjust-
ment and fixing of the sleeves is most easily effected by having broad headed
screws in the rail each of which laps over the flanges of two adjacent rings so as
to bind the same when adjustment has been effected. We might however use any
other suitable clamps or holders.
In carrying our invention into effect we harden and polish the interior of the
foresaid curb sleeves thereby reducing the friction between the sleeve and the
arm of the whip traveller. By having spindles of the ordinary aize the interior
of the sleeve is not so extended as to cause excessive friction.
In spinning cops and especially when spinning upon the bare spindle as has been
carried into effect by us, it is desirable to have a very quick reversal of the copping
notion at the cop tip. At present the copping cam operates the rising and falling
rail lever and mechanism from a bowl running on the face of the cam.
The rotundity of this bowl is an obstacle to obtaining the sudden drop which is
necessary to effect the desired quick reversal, because the round bowl instead of
dropping smartly rolls over the edge of the break in the cam surface. To help
this we use a steel block having a flat face and sharp corner placed side by side
with the howl. The cam surface is also made broader for a small portion of the
circumference so as to provide a resting surface for the block.
The bowl rolls on the cam as usual until it encounters the break, when the block
takes the weight from the bowl and rests on the cam surface, completing the
raising of the rails and remaining in contact with the cam surface until exactly
the point of reversal is reached, whereupon the corner of the block passes the edge
of the break in the cam and in a monient the rails drop, the reversal of the
copping motion being sudden and sharp. Thus a very neat, clear, firm and sharp
cop tip is obtained. In the case of long frames where the weight of the rails is so
considerable that so sudden a drop of both rails at once, might injuriously shake
the frames, we suddenly drop the under rail only at the moment of reversal the
two rails then descending together at a less pace. To do this we provide a second
cam operating a second lever and working secondary lifting levers pivotted on the
ordinary lifting levers. The rails are mounted separately on internal and external
carrying pokers and are separated by suitable springs. As the rails are raised,
the lower rail acquires a somewhat quicker lift from the said additional cam and
the springs between the rails are compressed when the rails reach the top of their
lift. At this point the reversal of both rails takes place but the release of the
lower rail allows the compressed springs to jerk it downward and away from the
upper rail, the fall being limited by a cottar fixed in the inner poker and passing
through slots in the side of the outer poker, or by the second cam lever striking
the sinaller diameter of the second cam and we may soften this blow by a suitable
air cushion cylinder and piston. The two rails then complete their descent at an
equal pace.
By this arrangement the frame is saved from the shock which is likely to
occur in long frames were both rails suddenly dropped at the same time. When
working under the latter arrangement the ordinary bowl may be used with the
ordinary copping cam as no sudden reversal of the upper rail is required.
To render our said invention; fully understood we will now proceed to describe
the same with reference to the annexed three sheets of drawings.
On Sheet 1, Figs. 1 and 2 show the improved form of whip traveller eye.
Figs. 3 to 7 show different modes of formning the ring socket cap so as to facilitate
the easy insertion of the bent arms of the ferrule. Figs. 8 and 9 illustrate
methods of adjusting the curbing sleeves relatively to the socket rings and also
the improved mode of forming the lower part of the socket ring out of the rail.
On Sheet 2 Figs. 10 and 11 are respectively partial frout and end elevations of
a spinning or throstle frame specially designed to facilitate spinning with the said
flexible or whip travellers, and fitted with apparatus intended to secure the forma-
tion of a clean, sharp and firm nose on the cop produced in such a frame.
Figs. 12 and 13 show our inproved method of connecting the upper and lower

page_text: rails by springs so as to secure a rapid reversal and withdrawal of the traveller
eye and yarn and so as to make a clean and firm nose on the cop.
Fig. 14 shows an improved mode of carrying the curbing sleeves upon the ring
socket rail so as to dispense with the sleeve rail.
On Sheet 3 Figs. 15 and 16 show a secondary copping lever and cam for
obtaining a quick fall away from the noses of the cops. Figs. 17, 18, and 19
illustrate an appliance for the same object fitted' to the ordinary copping cam and
lever.
Referring to Sheet 1 the improved form of whip traveller eye is shown in
Fige. 1 and 2. The improved eye is of an elongated "C" form as shown. As
indicated in Fig. 1 the yarn coming from the drawing rollers passes through the
closed shorter end of the loop C. The open free end of the loop being heavier
than the closed end, turns naturally outwards by centrifugal force as the whip
traveller C flies round, the shorter closed end turning towards the cop B. This
keeps the yarn from catching or flying out of the eye.
'
In our Specification No. 21056 of 1895 we describe certain means for facilitating
the insertion of the bent fingers of the ferrule into the socket ring race.
Figs. 3 to 7 in the drawings to the present specification illustrate additional
improvements having the same object. For example as in Fig. 3 we might cut a
spiral groove E2 or spiral grooves in the upper portion or cap E' of the socket
ring. We would then screw or pass the fingers via these grooves into the socket
ring race taking care that the fingers when working shall run in the same direction
as the downward trend of the spiral groove or grooves. This would prevent the
fingers from catching on the foot of the groove or grooves. By a further
modification as shown in Figs. 4 and 5 we might introduce the fingers of the ferrule
by furnishing the socket ring cap E' with a removable cod piece E³ which could
be slipped out to permit of the entry of the fingers and slipped back into position
after the fingers had been introduced. Another mode would be to form the cap E¹
in two pieces either by a straight cut as in Fig. 6 or by a break joint division as in
Fig. 7. In all of these arrangements the desired object is obtainable viz, the
placing of the already bent fingers of the ferrule in the socket race thus avoiding
the necessity for bending the fingers after or while they are being placed in the
race.
We will now proceed to describe the contents of Sheets 2 and 3 leaving Figs. 8
and 9 on Sheet 1 for after consideration.
In spinning cops by our improved apparatus we provide means for forming the
cops with firm and clean spun tips or noses. This result we obtain by causing
the lifting rail to reverse sharply and drop for a slight distance from the tip. The
ordinary heart or copping cam does not permit of this quick reversal seeing that
the bowl rolls so slowly over the apex of the cam that quick reversal is impossible.
To effect the required result we either form the cam and working parts in such a
manner as to give the said quick drop or reversal, or we use a subsidiary cam
which will bring about the desired results.
The figs. on Sheets 2 and 3 are intended to illustrate these parts of our invention.
To begin with the simplest arrangement we will first of all refer to Figs. 17, 18
and 19 on Sheet 3. For example the cam marked M and appearing in Fig. 18
is the cam we should use in substitution for the ordinary heart cam. The apex of
this cam is made broader than the remaining part and is covered by a hardened.
steel plate or shield N secured by screws to the cam as shown. The ordinary
bowl which is carried in the ordinary lever P rolls on the working face M of
tlie cam.
Side by side with the bowl O we mount flat fixed steel snugs Q. When
the cam in revolving brings its wider part under the said flat snugs, the snugs slide
thereon. When the bowl'O comes to the apex of the working surface M, instead
of rolling leisurely over it as at present, the snugs Q bearing on the steel facings N
keep the bowl O from rolling over and support it until it has passed the apex for
some distance. The continued revolution of the cam M causes the steel facing N
to pass from beneath the snuge, whereupon the lever P jerks up, the bowl O

page_text: striking upon the downward slope M' of the cam M, which latter continues its
revolution until the motion just described is repeated. The result of this sudden
spring of the lever P towards the centre of the cam M is that the lifting rail F
drops suddenly at the moment of reversal, and the yarn is pulled quickly from the
tip by the eye of the whip traveller, leaving the tip clean and sharp. The
formation of the cam M with its enlarged steel faced surface will be more apparent
from the inserted plan view Fig. 19 while the bowl and flat studs mounted in
the lever P are also shown clearly in plan in Fig. 17.
T
One objection to the sudden drop of the lifting rails FF is that in a long frame
the weight of the falling rails causes the frame to experience a shock. To avoid
this drawback we arrange to drop the lower rail F only, the upper rail F¹ being
more slowly lowered in the ordinary manner and by the ordinary copping cam.
To effect this result we in the first place arrange the ordinary copping cam R
(see Fig. 11 Sheet 2) and ordinary copping lever S and connect this ordinary
copping lever S in the usual manner through the barrel T and quadrant U (see
Fig. 10) to the levers V which operate the rails. The levers V directly operate
the upper rail F' this rail therefore rising and falling in the ordinary manner.
But to
The lower rail F carrying the socket rings and whip travellers is not rigidly
connected to the rail F but has a spring or yielding connection of the following
nature. On the rail Fare brackets W see Figs. 12 and 13 in which are suspended
sleeves X. In the centre of the sleeve is a poker Y terminating in a foot Y¹ which
rests upon a lever b. the function of which will be afterwards explained. The
rail F is hung by the sleeves X to the rail F the sleeve X having an enlargement
at the upper end which engages with the bracket W (see the sectional view Fig. 13).
A coltar Z passes through the boss a' of the bracket a secured to the rail and
also through the central poker Y and thus constitutes a point of suspension. It
will however be noted that slots are cut in the wall of the sleeve ✗ where the
cottar Z passes through. These slots are longer than the width of the cottar so
that there is room for longitudinal play. The sleeve X extends down to the loot c
against which the bowl d of the lever V presses. Disregarding other arrangements
in the meantime it will be apparent that when the frame is at work, (the cam R
and copping lever S acting in the usual manner), the sleeve X and two rails F
and F would rise and fall with the ordinary regular copping movements.
produce the combined dual motion we require to have an additional cam and lifting
levers which make the rail F move upwards faster than the rail F, compressing
the springs e between the rails and at the top of the stroke suddenly releasing the
rail and allowing the springs e to jerk or kick the lower rail F downward for
the distance by which it has overtaken the upper rail F'. This distance through
which the lower rail is thus suddenly dropped is comparatively slight but it is
sufficient to give the necessary quick retraction of the eyes C₁ of the whip
travellers C from the noses of the cops. The coiled springs are placed between'
the brackets W and the face of the rail F so as to permit of the approach of the
rail F towards the rail F. As has already been said the enlarged foot Y¹ of the
solid central poker Y rests on a horizontal lever b this lever being pivotted on
the lever V. Upon the pivots of the levers are fixed other levers f which
extend perpendicularly and are worked by a rod 9 which extends along the
frame and is connected to a bellcrank lever centred at at the end of the
frame. The horizontal arm of the bellcrank lever is connected by a link j
to one end of a lever k which rocks upon an adjustable centre pivot 7 arranged
in a slot about the middle of the lever. The other end of the lever is
furnished with a steel bit m which works against a cam n fixed on the shaft R¹
of the ordinary copping cam R. The cam n and the steel bit m on the end
of the lever appear in dotted lines in Fig. 11 behind the cam R while
the cam and lever are shown fully and to an enlarged scale in Figs. 15 and 16
Sheet 4. It will be seen that a portion of the cam n is concentric with the shaft
and a portion swells outwards and terminates suddenly in a drop. Now it will be
easily understood that if the lever which is actuated by the cam n is mounted on

page_text: a lever already receiving separate and independent motion from another cam as is:
here the case, the swell on the periphery of the cam n will give the excess motion
which enables the lower rail F to creep up towards the upper rail F. This is
what actually takes place. The lever V receives its motion from the ordinary
copping cam R and carries on its back the secondary lever b. This secondary
lever b receives its separate and independent motion from the cam n in the manner
described thus the cumulative motion of the lever is derived from the motion of
the cam R plus the motion of the cam n. The result of the arrangement is that
as the rails are nearing the end of the upward stroke the rail F begins to gain
upon the rail F compressing the spring e as it does so. When the rails have.
reached the top of their stroke and the yarn is at the nose of the spindle, the
sharp drop on the periphery of the cam comes opposite to the steel bit m on the
lever k. The cam n thus ceasing to exercise its compressing pressure the springs e
are released and immediately shoot the lower rail F downward for a short distance,
thus obtaining the sharp and quick reversal from the noses of the cops which is
necessary to produce the desired sharpness and firmness in the cop nose. After
this sudden drop of the rail F the two rails descend together in the usual manner.
To prevent the rail F from dropping with too sudden a shock we might attach the
end of the rod g to the piston o of a buffing or air cylinder p, or other means for
softening the shock might be employed.
Instead of the concentric arrangements of pokers and sleeves hereinbefore.
described it will be evident that we might attain our object by the employment of
pokers placed side by side in the same or in different planes. There are different
ways of readily and easily securing the curbing sleeves G to the 'rail F. For
example as shown in Fig. 12 we might mount a split collar 7 upon the rail with a
tightening screw to draw the halves together. When the curbing sleeve G has.
been placed in the said collar, the tightening of the screw causes the collar r to-
grip the sleeve G equally all round, thus obviating the possibility of crushing or
distorting the sleeve G. This is important because we have found in practice that-
if the interior of the sleeve G is not truly round, the whip traveller Ċ grinde aul
does not work well.
Another advantage of this mode of securing the sleeve G is that by having
a wide clearing hole through the rail F as appears in Figs. 8 and 13 the
sleeve G with its collar can be set and adjusted on the rail so as to get the centre.
of the sleeve exactly in line with the centre of the socket ring E-E¹ in the rail F
beneath, and truly concentric with the spindle. These also are important points.
as without exactitude of this sort the whip traveller will never work well. To
hind the collar and sleeves to the rail F we might use a steel washer K held to
the rail by a screw K. The facility for relatively setting the sleeve G and the
sccket ring might also be obtained by making the sleeve a fixture and the socket.
ring adjustable as is shown for example on the right hand side of Figs. 8, 9 and 13.
Here, the socket ring E is set in the rail F in a hole wide enough to permit of
adjustment while the sleeve G is held in a collar passing through the rail F' and.
not permitting of adjustment.
Although we have throughout referred to two rails F and F it will be evident.
that in some cases one rail might serve to support both the curbing sleeves and
the socket rings. We have shown such an arrangement in Fig. 14 Sheet 2. The
ring socket half E is formed with an upward extension E which is formed with.
openings at the side as shown. The upper part of the extension E4 carries the.
sleeve G. As the socket E and the extension E can be bored at the same time,.
concentricity of the socket and the sleeve G is thereby secured.
To secure that the whip traveller shall work with the least possible friction, we
harden and polish the interior circumference of the curbing sleeves G. When this.
is done we find that the frictional drag on the traveller is very slight and does not
at all affect the efficient working of the appliance.
Instead of forming the carrier or socket ring E as a separate body we might
bore or out the under part of the socket out of the substance of the rail Fas

page_text: shown for example in Fig. 9 and also in Fig. 13. To provide the necessary under
ridge or lip to carry the traveller fingers, we might insert a bush E* in the lower
part of the recess or the said lip or ridge might be formed from the material of
the rail.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.
1. Forming the eye C¹ of the whip traveller C in the manner shown in Figs. I
and 2 of the drawings and for the purposes described in the specification..
2. Forming the cap or cover E¹ of the socket E in such a manner as to facilitate
the insertion of the bent fingers of the whip traveller ferrule into the socket ring
race, the different formations of the said cap or cover hereby claimed being shown
in Figs. 3 to 7 of the drawings.
3. Forming the socket E in the thickness or material of the rail F substantially
as described and as shown in Figs. 9 and 13 of the drawings.
4. The methods of adjusting the sleeves G and the socket rings relatively to
each other, substantially as described and as shown in Figs. 8, 9, 13 and 14 of
the drawings.
5. As means for producing a clean and sharp nose in cops, forming the heart
cam R with an additional part so as to present a sudden break in the cam face and
combining with the bowl on the copping lever a flat contact piece which bears on
the additional part of the cam and carries forward the bowl until the flat piece
reaches the break and then moves suddenly so as to drop the bowl again on
the cam face, the sudden movement producing the required quick reversal of the
traveller eye, all as herein described and as shown on Sheets 2 and 3 of the
drawings.
6. The means for dropping the lower rail F independently of and away from
the upper rail F¹ so as to obtain a quick reversal at the cop tip and consisting of
the spring connection between the two rails and the method of working the
independent pokers or carriers by tho combination of the ordinary heart cam R
and the auxiliary cam n with the arrangements of mechanism whereby the lift of
the rail F is differentiated from the lift of the rail F' substantially as described
and as illustrated on Sheets 2 and 3.
7. The curb sleeve G having a hardened and polished internal circumference
for the purposes and as hereinbefore set forth.
Dated this 11th day of August 1896.