IMPROVEMENTS IN MACHINERY FOR SPREADING AND DRAWING HEMP AND OTHER FIBROUS MATERIALS
Year: 1885

page_text: I, ALFRED VINCENT NEWTON of the Office for Patents 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Mechanical Draughtsman do hereby
declare the nature of invention for IMPROVEMENTS IN MACHINERY FOR SPREADING
AND DRAWING HEMP AND OTHER FIBROUS MATERIALS, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
.
One part of this invention, which is applicable both to spreaders, and to drawing
frames, relates to the construction of the drawing beads employed in such machines,
to draw the fibres from the gill-pins, and the object of this part of the invention is
to obtain in such a head, all the advantage that is to be gained by the use of two
drawing rollers one of which is wholly of metal and the other of which is faced
with elastic material such as india rubber, and to ensure also greater durability of
the working surface and to this end, this part of the invention consists principally
in the combination with an endless series or belt of gill pins, of a pair of drawing
rolls, one being entirely of metal and the other having a peripherical covering of
india rubber, and a leather belt passing around the so covered roll. This part of the
invention also embraces certain means of adjustment of the said leather belt and
covered roll, as hereinafter described and claimed; and also includes certain means
hereinafter described and claimed of removing from the said belt and the metal roll
any loose fibre that might adhere thereto.
Another part of this invention relates to spreaders in which are employed two
endless belts or catenary series of gill pins arranged one before the other and
running at different velocities. In machines of this class as heretofore constructed
the pins of the two belts or series have always been presented in an upward direc-
tion when in operation, the belts having been moved in the same direction and the
pins on the upper portions having been operative. In such machines also the endless
chains which have carried the two belts or series of pins have been supported, at

page_text: the parts where they come together, by chain wheels which have necessarily been
of considerable size, and the conforming of the chains to the curvatures of these
wheels has left a considerable gap between the pins of the two series. In order to
enable the operative pins of the two catenary series to be brought nearer together,
I raise the first series or belt of pins or the series upon which the fibre is received,
higher than the second series or belt, and reverse the direction of the movement of
the said first series or belt; and this part of the invention therefore consists
principally in the combination of two belts or catenary series of pins, set one before
the other but in different planes and in such manner that the pins which are at
any time in operation have their points presented in a downward direction on the
·lower portion of the first or higher belt or series and while the acting pins are in
an upward direction on the second or lower belt or series, and mechanism for pro-
ducing the travel of the two belts or series in reverse directions, so that their
operative portions, or their portions carrying the operative pins, will move in the
same directions.
With a view to bringing the operative pins of the two catenary series or belts
closer than is possible when the portions of the two, which are nearest together
conform to the curvature of the chain wheels, the improvement in this class of
machines further consists in certain combinations with the endless chains to which
are fitted the bars in which the gill pins are held, and with the dogs commonly
employed on the said bars, for guiding the same, of guides whereby the direct travel
of the belt or series of pins is prolonged beyond its driving chain wheels, and of
other guides and stationary cams, whereby the pins of the two belts or series of
pins are kept in an upright or nearly upright position during their entrance into
and withdrawal from the fibre.
Another improvement in this class of spreaders consists in the combination with
the first belt of gill pins arranged as hereinabove mentioned so that its operative
pins are presented with their points in a downward direction, of a reciprocating
fibre clearing blade arranged within the first belt to work between the pin-bars of
the lower or operative portion thereof, and in means of operating the said blade for
the purpose of throwing or pushing off the fibre from the said pins at the proper
point in the movement of the belt.
Another improvement consists in the combination with the first belt of a
spreader arranged as herein above mentioned, of an endless catenary retaining
apron whereby the fibre is prevented from dropping off the pins, until the proper
time.
Another part of this invention consists in the combination, in a spreader, with a
pair of feeding rolls and an endless belt of gill pins to which the fibre is fed by said
rolls, the upper feeding roll being journalled in boxes which are capable of rising
and falling, of an indicator and connections through which the indicator is operated
by the rising and falling of the roll as the fibre is fed between the rolls in a
greater or less quantity, such indicator serving to make known to the attendant
of the machine the quantity of fibre which is at any time being fed thereto.
Another part of this invention consists in a measuring stop motion applied to
the driving shaft of a spreader or drawing frame in connection with a driving
clutch, for the purpose of disengaging the said clutch and allowing the machine to
stop every time a predetermined number of resolutions of the machine has been
completed and a predetermined length of sliver has been produced by the machine.
In the accompanying drawings Figure 1 is a side elevation of a spreader
embodying all the features of my invention: Figure 2 is a front end view of a portion
of the said spreader: Figure 3 is a vertical longitudinal section of the drawing
head and portions of the machine adjacent thereto, but on a larger scale than
Figures 1 and 2, the same kind of drawing head being applicable to a drawing
frame: Figure 4 is a transverse section on the plane of the dotted line xx Figure 3:
Figure 5 is a partly sectional view of the measuring stopmotion as applied to the
lower drawing roll of a spreader or drawing frame: and Figure 6 is an end elevation

page_text: of the same: Figure 6ª is a vertical longitudinal section of the feeding end of the
machine on a larger scale than Figure 1: Figure 7 is a similar section on the same
scale, of the middle portion of the machine, including the delivery end of the first
belt of pins and the receiving end of the second belt of pins: Figures 8 and 9 are
views in planes parallel with Figures 6 and 7, illustrating on a larger scale the
stationary guides and cams at the receiving and delivery ends of the first belt of
pins, and the action of such guides and cams on the chain dogs; the chains not
being shown: Figure 10 is a side view similar to Figure 8, illustrating the
stationary cams at the receiving end of the second belt of pins and their action on
the chain dogs; the chains being omitted: Figure 11 is a transverse section of
guide rails employed for guiding the first belt of pins in its direct and return
travel, including a portion of the belt: Figure 12 is a transverse section of the
guide rails employed for guiding the second belt of pins in its direct travel, including
a portion of the belt and Figure 13 is sectional view illustrating one form of chain
which may be employed for the belts of pins.
Similar letters of reference designate corresponding parts in all the figures.
A. designates the side frames of the machine, and A¹ the upright standards of the
drawing head in which are the bearings of the drawing rolls B, B'.
C designates the endless belt of pins from which the fibre is taken by the drawing
rolls, whence it passes to the condenser or trumpet mouth D whereby it is formed
into a slivers which is delivered by the rolls E, E'.
The mechanism for driving the several parts of the machine may be of any
suitable character.
In this example of the invention the lower drawing roll B constitutes the driving
shaft and carries a driving pulley a, a pinion a¹ and a pulley a². In connection
with the driving pulley a I employ a clutch and measuring stop-motion which are
not shown in Figure 4, space not permitting, but are shown fully in Figures 5 and 6
and are partly shown in Figure 1. From the pulley a² a belt a³ drives a pulley a*
on the shaft of the lower delivery roller E. The two chains carrying the belt of
pins C are driven by chain wheels b on a shaft b¹.
Below the drawing roll B is a short shaft or stud 62 which is carried by an arm b³,
supported concentrically with the chain wheel shaft and in which the stud may.
be adjusted towards and from said shaft. On the stud b² are supported a gear-
wheel b which engages with and receives motion from the pinion a¹ and a
pinion b which engages with and drives a gear wheel 66 où the chain wheel
shaft b¹.
The adjustment of the stud 62 in the arm b³ provides for bringing the pinion 65 in
proper gear with the wheel 66 and the swinging of the arm ou its centre and
securing it by the clamping bolt b* passing through an are shaped slot *, provides
for the adjustment of the wheel 64 into proper relation to the pinion a¹ which
drives it.
The lower delivery roll E is in fixed bearings, but the bearings of the upper.
roll E¹ are in boxes, which are vertically movable in housings c and are acted upon
by springs cl to maintain the bite of the rolls on the sliver. The lower drawing
roll B is in fixed bearings but the bearings of the upper roll B' are in boxes which
are vertically movable and are held down by plungers or push rods & guided in the
uprights A, and extending downwards to the movable boxes of the said roll B'.
The rods d are fitted with nuts d¹ and loose collars d² and upon them are spiral
springs d³ arranged between the collars d² and loose collars d' which rest against
the cross portions in the frames A¹.
By adjusting the nuts d' the tension of the springs may be properly regulated to
load the upper roll to the required extent.
The lower drawing roll B is of much smaller size than the upper roll B³ and has
a ribbed or fluted metallic surface.
The upper metal roll B' has a covering e of india-rubber to produce an elastic
surface. Around this roll passes an endless belt of leather F which is also carried

page_text: around or over a tension roller F¹, journalled in the upper part of the frames A¹.
The boxes e¹ of the roller F¹ may be adjusted by screws e² to put tension on the
belt.
The leather belt F forms a very desirable working surface and in connection with
the small fluted roll B is very effective. It has a large surface for wear, and the
rubber covering e gives the required degree of elasticity.
The electricity generated in the fibres causes their ends to adhere somewhat to
the leather belt F, though not so much as to a rubber surface. In order to prevent
the adhering fibres from lapping-on the belt, I employ a fibre clearing rubber or
scraper which consists of a simple bar f, faced with felt and supported at the ends
by arms f¹ pivotted at f*. This rubber or clearer bears against the belt by gravity
alone and clears it of fibre. I have also shown a similar rubber or clearing bar g
bearing against the under side of the lower drawing roll B. This bar has at its
ends arms g pivotted at g* and weighted to hold the bar against the roll.
A similar rubber or clearing bar h carried by weighted arms h¹ pivotted at h* is
applied to the lower delivery roll E for a like purpose.
H, H', designate upper and lower feed rolls to which fibre is fed from a shute
or table H. The feed rolls deliver fibre to the first belt of pins C¹ which is
arranged higher than the second belt C and the lowermost portion of which is
operative with its pins, presented downwards. From the first belt the fibre
is delivered to the second belt of pins C, the uppermost portion of which is
operative with its pins presented upwards.
The belts of pins C, C, are each composed of parellel rods or bars i armed with
pins and carried by two endless chains . The rods fit loosely in the chain
links so as to turn freely, and secured on their outer ends and beyond the chains
are dogs.¿².
Chains of any suitable character may be employed to carry the pin bars i but
a very desirable form of chain is shown in Figure 13. In this chain alternate
links which are on the inner sides of the chain are formed with hubs 1.which
project inwards and other hubs 2 which project outwards, and are fitted, to and
capable of turning, in hubs or eyes 3 formed on the outer sides of the intermediate
links. The pin bars i extend through the hubs 1, 2, and are free to turn
therein.
Each dog has in its outer side, a notch or channel 13 and two studs is the
latter of which is the shorter of the two. I do not claim these dogs or chains
especially as parts of my present invention but only describe them to show their
operation with the guides and stationary cams which are combined with them in
this invention.
As before stated the belt of pins, C, is driven in the direction of the arrows, by
the chain wheel.b at its delivery end, and it is carried at its receiving end by chain
wheels c² on a shaft c³. On the end of the shaft c³ is a pinion c¹ driving into a
wheel c and on the same shaft or stud as the wheel c is a pinion c gearing into
a pinion c. The pinion c7 gears into a wheel c8 on the end of a shaft c⁹ which is
at the delivery end of the first belt of pins, C¹, and has upon it chain wheels c¹0
for driving said belt, This arrangement of driving mechanism is shown in
Figure 1.
At the receiving end of this belt of pins C¹ are chain wheels c¹¹ on a shaft c¹¹ and
on said shaft is a wheel c¹³ gearing into and driving a wheel c¹ on the shaft of the
lower feed roll H¹.
The mechanism herein described transmits to the first belt of pins C' a move-
ment in the reverse direction to the belt C, but the operative portions of the two
belts, of course move in the same direction. The movement of the belt of pins C¹
is slower than that of the belt C and any mechanism which will produce this result
may be employed.
The lower feed roll H is in fixed bearings but the boxes f2 of the upper roll H
are movable in housings f³ and are loaded by springs f to the desired degree.

page_text: Forward of the feed rolls is arranged an indicator scale f³, and fe designates a
rock shaft carrying an indicator f registering thereon. At its front end the
shaft f has a bearing in a cross-bar f8 and is connected by an arm f' and rod f10
with a cross bar or saddle piece f", the ends of which are attached to and movable
with the boxes f². By these or other suitable connections the rising and falling of
the upper feed roll H will move the indicator f' over the scale f5 and the position
which the indicator should occupy when the feeding is properly performed being
determined the attendant has only to glance at the indicator to see whether
he is feeding too fast or too slow and then regulate his feed accordingly.
To hold the fibre upon the pins of the belt C¹ and prevent its dropping off said
pins, the retaining apron or belt G is employed. This belt is composed of parallel
rods and chains d, it is carried by the polygonal rollers d' d and upon the shaft
of the roller is placed the transmitting pinion e' which gears into the wheel ca
and then drives the shaft c⁹.
The links of the chains 6 of the retaining apron or belt should be equal in
length to the links of the chains carrying the belts of pins and as the uppermost
portion of the retaining apron or belt moves in the same direction and at the same
speed as the lowermost portion of the belt of pins C¹, the rods of the retaining
apron or belt receive the pins between them and so retain the fibre on the pins.
The uppermost and operative portions of the apron chains d are supported by
tracks or rails d³.
In order to aid in detaching the fibre from the pins of the first belt C¹ at the
delivery end thereof I arrange within the said belt a clearing blade or plate g²
which is of a size to enter between the chains of the belt and between the pin-bars.
As here shown this blade or plate is pivotted to the ends of arms g³ which extend
over the shaft c³ and are pivotted or fulcrumed a g' the arms being there provided
with downwardly projecting toes g³. Only one arm g³ is shown in the drawing
but one is arranged near each side of the belt of pins. As the pin bars of the belt
pass the toes g³ they act successively upon them and so raise the arms g³ and lift
the clearing blade or plate g² clear of the pin bars. As cach bar in succession
releases the toes g³ the blade or plate falls and descending between the two pin
bars clears the fibre from their pins.
The chain wheels for moving the belts of pins C1 and C engage with the rods i
or with the hubs of the chain links as may be desired, and tracks and guide rails
are provided for the upper portions of the chains of the belt C as they move
towards the drawing head, and tracks or ways m m¹ m* for the upper and lower
portions of the chains of the belt C as they move towards and from the feed
rolls H, H¹.
which project
of the dogs i²
Forward of the chain wheels b are stationary cams or rails
sufficiently inwards of the side frames A to cause the pins or studs
to act upon them, and to prevent the pins of the belt from swinging too abruptly
out of the fibre.
As before stated the chains of the first belt of pins C¹ are supported in their
return movement towards the feed rollers H, H', by tracks or ways m and are
supported in their operative movement away from the feed roll by tracks or
ways m'. The tracks or ways m' are provided with ribs or tongues m* on which
the dogs are guided and held with the pins i* in operative position.
Adjacent to the chain wheels c¹¹ and shaft c¹³ at the receiving end of the belt C¹
are two cams n n' the forms of which are shown in Figure 8 and on which bear
the studs and of the dogs 22, as the chains pass around the wheels c¹¹. By
these caus the pin-bars are turned and held in proper position for the pins i* to
enter the fibre 8 and are supported against backward movement as they enter the
fibre and until the notches of the dogs engage the ends of the guiding
rails m' m*, by which the bars are held against the tendency to turn throughout
the operative portion of the belt.
+

page_text: As shown best in Figure 9 the guiding rail or guide m¹ m* is extended forward
of the wheels c¹ and as the belt of pins passes the wheels c¹o its line of travel is
prolonged in a direct line beyond said wheels.
At the forward ends of the guiding rails m' m* are chain supports n² inclined
upwardly and forwardly, and extending at a corresponding inclination and parallel
therewith are stationary cams n³ which are arranged to act on the studs or pins **
of the dogs i².
As the chain dogs leave the guiding rails m¹ m* the chains pass directly
upwards and forwards along the chain supports or tracks n² and at the same time
the studs come in contact with the cams n³ and the pin bars i are thus held
against turning in a direction to swing the pius forward. By said cams the pins
are prevented from swinging out of the fibre as they leave it and are withdrawn
directly upwards, thereby clearing themselves of tow.
Rearward of the chain wheels c² are chain guide-supports or tracks is extending
forward and upward at an inclination corresponding to the inclination of the
supports or tracks n² and stationery cams * correspondingly inclined and adapted
to act on the studs of the chain dogs. Adjacent to the lower part of the cam 1*
and extending below and forward thereof is a second cam l adapted to act on the
studs of the dogs.
Before the chains of the belt C reach the guides or supports the studs i³ bear
on the cams and the dogs are swung round to enable their studs to enter
under the cams 1*, and as the chains pass upwards their pin bars i are held
against turning backward by the studs of the dogs bearing on the inner side
of the said cams 1* and consequently the pins are kept in vertical position and
are raised vertically into the fibre s instead of being swung into the fibre.
8
As the dogs approach the upper part of the cams * the studs is also come into
contact there with and the bars i and pins are thus prevented from being swung
forward as they enter the fibre and until the notches or channels i³ obtain a firm
hold on the guiding rails k, k*.
By the above described arrangement of guides or tracks and cams for the chains
and chain dogs a very close hold on the fibre is maintained between the two belts
of pins.
The pin bars may have dogs secured on both their ends or each bar
may have
a single dog, the dogs of alternate bars being on one side of the belt and the dogs
of intermediate bars being at the other side of the belt. At the two sides of the
machine are tracks or guides and cams which are similar and which act simul-
taneously on the dogs at opposite ends of the pin bars.
I will now describe the measuring stop motion and clutch which are shown in
Figures 5 and 6. This apparatus is to be applied to the right hand side of
Figure 4, the journal B* being there shown broken off; but for the sake of clearly
illustrating the stop-motion it is shown detached and on the enlarged scale of
Figure 4. The shaft B* of the roll B is prolonged beyond the side frame and
constitutes the driving shaft of the machine.
I, I designate a friction clutch. The part I is secured fast on the driving
shaft B* by a set screw or other means, and the part I turns loosely on the shaft
and is grooved to form the pulley a which receives the driving belt a*. The
pulley a and belt a* are also shown in Figure 1.
The pulley a is constantly rotated and when pressed forcibly against the disc
the pulley and part I will transmit rotary motion to the part I and to the
shaft B*.
In order to increase the frictional engagement of the clutch portions I, I¹ one
of thein, in this instance the part I, is faced with leather o or other material
calculated to increase friction. The clutch pieces I, I are kept in driving engage-
ment by means of a spring pressing the piece I' against the piece I and they are
relieved or disengaged by means of a clutch lever J which is moved automatically

page_text: by the stopmotion to draw back the piece I¹ out of engagement with the piece I.
The lever J is fulcrummed at p to a standard A*.
J is a hollow sleeve capable of axial movement on the shaft B* and fast on the
shaft is a screw threaded collar o³ to which are fitted a nut o* and a jam nut 05.
Between the nut o' and sleeve J¹ is a spring o² which presses the clutch piece I¹
against the piece I.
When the spring o² is permitted to exert its force the clutch piece I and shaft B*
are driven by the clutch piece I' and the sleeve J', nut o' and collar o³ all rotate
with the shaft.
To stop the rotation of the shaft B* the clutch lever J must be operated to force
back the sleeve J1 against the power of the spring o³.
In a case A** is journalled a short shaft p¹ upon the outer end of which is a
wheel or disc p². The shaft p' is to be geared with the shaft B* by any suitable
system of gearing which will permit a large number of rotations of the shaft B* to
each turn of the shaft p. In the drawing a shaft q is shown at right angles to the
shaft B*.
Upon the end of the shaft B* is a worm or screw q¹ which gears into a worm
wheel q; on the shaft q is a worm or screw q³ which gears into a worm wheel q*
on the shaft p¹.
By this mechanism a very slow motion is transmitted to the shaft p₁ and
wheel p².
K designates a rock shaft mounted in bearings r and capable of turning but
incapable of longitudinal movement.
On the shaft K is a face cam s¹ against which bears a roller or bowl 8* on the
lower end of the clutch lever J and by a slight turn of the rock shaft K the cam 8'
will press the lower end of the clutch lever J to the left, and its upper end to the
right, thereby moving the sleeve J¹ against the force of the spring o² and relieving
the frictional contact of the clutch pieces I¹, I.
Upon the outer end of the rock shaft K is a disc or collar t notched at t¹ and u
designates a catch-lever which is fulcrummed at u* and comprises a handle which
is heavy enough to serve as a weight to hold the nose of the catch lever in engage-
ment with or against the notched disc or collar t.
I designates an intermediate lever fulcrummed at v and having at the lower end
a slot and pin connection with the catch lever u.
The rock shaft is weighted so that it will be turned to throw off the clutch
lever J the instant the nose of the catch lever u is withdrawn from the notched
disc or collar t.
As here shown the weight applied to turn the shaft K is in the form of a handle
or hand lever K¹ fast on the shaft and having a downwardly projecting arm k³
which by striking against the frame A² forms a stop to limit the turning movement
of the rock shaft K.
On the disc or flange p² are secured one or more projecting toes p*, four being
shown. The disc p₁ turns in the direction indicated by the arrows, Figure 6, and
when a toe or projection p* comes against the intermediate lever L the latter is
moved and caused to trip or pull back the nose of the catch lever u out of the
notch in the flange or collar t.
The rock shaft K being thus released the weight of the handle K₁ causes it to
drop into the position shown by full lines, Figure 6, and thereby the shaft K is
turned sufficiently to cause the cam s¹ to throw off the clutch lever J.
From the above description it will be readily understood that the relative speed
of rotation of the shaft B* and the shaft and flange or disc p¹, p² being known, the
toes or projections p* can be arranged to trip the intermediate lever L and with-
draw the nose of the catch lever u from the notch t¹ after any predetermined
number of rotations of the shaft B* and roll B have been performed.
The disc or flange p³ therefore constitutes a tripping cam or trip wheel and the
lever La trip lever.

page_text: This stop mechanism is applicable to other machines for working fibrous
materials than the spreader and drawing frame above described.
Having now particularly described and ascertained the nature of the said
Invention (as communicated to me from abroad) and in what manner the same is
to be performed, I declare that what I claim is
1st The combination with an endless series of gill pins and a pair of drawing
rolls, one having an india rubber covering, of the endless leather belt, the tension
roller and adjusting screws for maintaining the tension of said belt and springs
applied as described for giving pressure to the upper drawing roll, and the fibre
clearing rubbers or guards applied to the said belt and lower drawing roll, either or
both, and serving to prevent fibres from.lapping round the belt and roll, substantially
as herein described.
2nd The combination of two series of gill pins and endless chains for carrying
the same, arranged relatively to each other as described, so that the pins which are
at any time in operation are presented in a downward direction on the lower
portion of one series and in an upward direction on the upper portion of the other
series, and mechanism for moving the two belts in reverse directions so that their
operative portions will move in the same direction but at different speeds, sub-
stantially as herein set forth.
3rd The combination with the two series of gill pins and endless chains for
carrying the same, arranged relatively to each other as above mentioned, of driving
wheels for the chains of the first series arranged at the delivery end of said series,
and guiding rails extending beyond the said wheels, whereby the downwardly
presented pins of the first series are held in operative position and their direct
travel is prolonged beyond said wheels, substantially as herein described.
4th The combination with the chains and pin bars of the first series or belt of gill
pins in the spreader, the driving wheels for said chains arranged at the delivery
end of the series and the guide rails extended beyond said wheels as described, of
the inclined guides or supports n and the stationary cams n³ for preserving the
upright position of the said pins while they are ascending out of the fibre, sub-
stantially as herein described.
5th The combination with the chains and pin bars of the second series or belt of
gill pins in the spreader and the driving wheels for said chains arranged at the
receiving end of said series, of the cams 1, 1* and the inclined guides, supports or
tracks for bringing and keeping the said pins upright or nearly so, before and
during their entrance into the fibre, substantially as herein described.
6th The combination with a pair of feeding rolls and a belt of pins the lower-
most portion of which is operative with its pins presented downwards, of a
reciprocating fibre clearing blade or plate arranged within the belt of pins and
working between the pin bars to clear the pins of fibre, substantially as herein
described.
7th The combination with a pair of feeding rolls and an endless belt of pins the
lowermost portion of which is operative with its pins presented downwards, of an
endless retaining apron arranged below and moving with said belt and receiving
through it the pins of the latter, whereby the fibre is prevented from dropping off
the pins, substantially as herein described.
8th The combination with the feeding rolls H, H, and belt of pins C, of the
clearing blade or plate g³ and its supporting arms g³ pivotted at g' and provided
with toes go to be acted on by the pin bars i, substantially as herein described.
9th The combination with a pair of feeding rolls and an endless belt of pins to
which fibre is fed by the rolls, the upper feeding roll being journalled in movable
boxes, of an indicator and connections through which the indicator is operated by
the rising and falling feed roll, to indicate the quantity of material being fed to
the machine, substantially as herein described.
10th The combination with the driving shaft of a spreader or drawing frame, i
and a clutch on said shaft for imparting motion thereto, of a spring acting upon

page_text: the movable clutch portion to hold it in driving engagement with its fellow, a
clutch lever, a rock shaft and cam weighted to turn automatically when released
and to throw off the clutch lever, a catch for holding the rock shaft inoperative
and trip mechanism operated by the driving shaft and adapted to release the rock
shaft from its catch and disengage the clutch after a determined number of turns
of the driving shaft, substantially as herein described.