Year: 1888

page_text: Date of Application, 24th Apr., 1888
Complete Specification Left, 31st Dec., 1888
Complete Specification Accepted, 5th Feb., 1889
I JAMES MARJERISON of Lawrence Essex County in the State of Massachusetts one
of the United States of America Machinist do hereby declare the nature of this
invention to be as follows:-
This invention relates to that class of spinning or twisting machines employing a
dead spindle carrying either a cap or a flyer and has for its object to improve that
class of machine in such manner that in a machine employing caps, the caps and
then the full bobbins may be automatically removed from the spindles and empty
bobbins be applied automatically thereto, but when a flyer is used an empty bobbin is
automatically removed from and a full bobbin is automatically applied to the doad
spindle in succession.
One feature of my invention in spinning and twisting machines consists in a spindle
rail and a series of dead spindles, and steps for the same, combined with spring-
holders upon or by which the said steps are supported.
My invention also comprehends a series of dead spindles; a series of sleeves loose
thereon and provided at their upper ends with heads; a series of whorls surrounding
the said sleeves and loosely connected therewith; a collar-rail provided with attached
bearings for the whorls; a series of caps mounted upon said spindles; a series of
bobbin-carrying tubes adapted to be rotated by the said heads; a builder-rail; a series
of vibrating and vertically movable clamps or jaws to remove and then reapply the
said caps automatically and with operating mechanism for the said jaws.
My invention also comprehends a series of dead spindles; a series of sleeves loose
thereon and provided at their upper ends with heads; a series of whorls surrounding
the said sleeves and loosely connected therewith; a collar-rail provided with attached
bearings for the whorls; a series of caps mounted upon said spindles; a series of
bobbin-carrying tubes adapted to be rotated by the said heads; a builder rail; a
series of vibrating and vertically-movable clamps or jaws to engage full bobbins and
remove them from the spindle and a second set of clamps or jaws to receive empty
bobbins and apply them to the said spindles, and operating mechanism to actuate the
said clamps or jaws in the time and order desired.
Also in a machine for spinning or twisting, a series of dead-spindles, and bobbins

page_text: surrounding and made movable on the same, and caps carried by the said spindles,
combined with three sets of jaws or clamps, and means to actuate them in the proper
time and order, whereby one of the series of clamps grasps and removes the caps
from the spindles; another of the series of jaws engages the full bobbin and removes
it from the spindle while the third set of jaws carrying an empty bobbin applies it 5
upon the spindle, the first set of jaws thereafter reapplying the cap to the spindle:
Also, in the combination with a dead-spindle, of. a loosely surrounding rotating and
vertically movable slotted sleeve provided with a head to engage and rotate an
independent bobbin driving tube; a whorl supported in independent bearings and
having a stud or projection entering the slot of the said sleeve the bearing restraining
the whorl from vertical movement, a cap; and an independent builder-rail; and
means to raise and lower the said sleeve and the bobbin driving tube on the said
spindle.
Also, in the combination with a dead spindle of a slotted sleeve surrounding the
same and provided with a head; a bobbin driving tube engaged by the said whorl
and restrained from vertical movement by suitable bearings, the whorl having a
projection to enter the slot of the sleeve and rotate the same on the spindle; and
a builder-rail having mounted upon it an oil-cup into which is extended a part of
the said head to lubricate the latter.
Also, in the combination with a vertically movable spindle rail, and a series of steps
and spindles supported thereby, of a set of vibratory and vertically movable clamps
to receive empty bobbins; a set of vibratory and vertically movable clamps to remove
full bobbins; and supports an operating mechanism for the said clamps.
Also in the combination in a spinning or twisting machine of the following
instrumentalities, viz. :-a spindle rail; a series of dead spindles; steps to support
them;
builder-rail; a series of tubes connected with the builder-rail and adapted
to be moved vertically thereby; rack bars; a rock shaft. supported by the said rack
bars and thus adapted to be moved vertically by them a series of clamps or jaws
operatively connected with said rock shaft and adapted to grasp the full bobbin; racks
or toothed rods: connected with the spindle-rail, and a driving, shaft having gears
thereon, to operate.
The framework of the machine carries a cross-beani, a bearing is secured to the
collar rail by a screw, a builder-rail is secured to the upper ends of rod's extended
through bearings in the cross rail and cross-beam and provided at their lower ends
with arms attached firmly thereto by nuts the outer ends of the said arms receiving
the screw-threaded portion of the chain secured upon a hub of a shaft.
The builder shaft may in practice be operated in-usual manner.
A step rail is provided to which are secured at suitable intervals by screws
supporting pieces, one for each spindle, the said supporting pieces, entering annular
grooves in the foot steps or lower bearings for the dead spindles, the said supporting
pieces being composed of spring steel to enable any bearing to be readily lowered
to permit a dead spindle to be withdrawn.
A bearing receives between its horizontal portions a whorl having a sleeve-like
portion at its lower side and a sleeve-like portion at its upper side, the said sleeve-
like portions being journalled in the bearing, the sleeve-like portion extended-upwardly
from the whorl having a flange which rests upon the bearing.
Within the whorl and its sleeve is introduced the tubular shank of the head which
is slotted, the said tubular shank is extended through an oil, cup, then through the
builder-rail and the whorl, the said sleeve being slotted longitudinally and receiving
in it a key.
In this way the rotation of the whorl carrying with it the key or stud within
the slot of the sleeve rotates the latter sleeve, and with it the bobbin carrying
head.
The base of the bobbin driving tube has at its underside a foot which enters the
hole in the head, a pin carried by the said base-entering the usual notch on the
bottom head of the bobbin, thus carrying the bobbin with the bobbin-driving
•

page_text: Each dead spindle has mounted upon the upper end a cap, the operation of which is
well understood to those familiar with cap spinning.
The spindle rail has attached to it at suitable distances apart two or more rack
bars which are extended up through bearings in the cross-rail the rack teeth being´
at the front sides of the bars.
These rack teeth are engaged by pinions fast upon a doffer shaft provided with a
hand wheel located outside the framework.by which the doffer shaft may be rotated
in one or the other direction at the desired times by hand, but this hand wheel may
be placed upon any other part of the shaft between the sides of the frame.
The doffer-shaft has connected with it other pinions which engage the rack bars
which have bearings the said bearings being connected to a stand suitably attached to
the cross rail and extended outwardly therefrom.
There are several of these rack-bars and at their upper ends they have bearings for
the rock-shaft which serves to carry the devices which give motion to the various jaws,
as for instance jaws which are employed to automatically apply and remove the caps;
jaws, which are employed to automatically apply the bobbins, and jaws which are
employed to automatically remove the full bobbins in their proper time and order.
The first mentioned jaws are composed of two members pivoted upon a screw-stud
having a collar near the middle of its length to rest upon an extension plate through
which is extended the threaded portion of the screw-stud, the said portion receiving
upon it a nut by which to hold the stud in adjusted position.
The extension plate is bolted to a cross rail fixed to the upper ends of arms
pivotally connected by a rod to other arms bolted to other arms, the hubs of the last
mentioned arms being mounted loosely upon a rock shaft each arm having at its lower
end a stud which enters a cam slot in a long cam plate fixed to a stand rising from
the rail.
The rod serves as the pivotal connection between the respective arms the said rod
having attached to it a locking pin or device by a screw, a spiral spring surrounding
the rod and bearing against the one arm at one end, and at its other end against the
collar on the rod.
The spring normally holds the locking device in engagement with two arms but by
pushing the rod longitudinally the pin may be removed from its engagement with the
arm and permit the bar and its attached jaws to be turned back out of operative'
position.
The arms and jaws as when a flyer is used may at times be dispensed with.
These last jaws are normally held together by means of a spiral spring attached to
studs carried by the said arins.
The jaws for applying the bobbins are pivotted between their ends by pivots each
in an extension plate firmly fixed to a cross bar carried by arms bolted to other
arms in turn attached to or forming part of other arms the hubs of which are
fast on the rock-shaft to the lower ends of these last arms, having roller or other
studs which enter cam-slots in a cam-plate bolted to a stand.
The bobbin applying jaws are normally kept closed by means of a spiral spring.
The full bobbin delivering jaws are substantially the same in shape as the empty
bobbin applying jaws, and they are mounted in like manner upon extension plates
bolted to a cross-rail in turn bolted or fixed to the upper ends of arms bolted to other
arms the hubs of which are mounted loosely upon their shaft the lower ends of the
latter arms having roller or other studs which enter cam slots in a cam-plate fixed to
the stand the stands being both bolted to the rail.
The cam-plate has a long straight groove which is crossed by spring-held switches
so that the pin starting from the bottom of the groove will arrive in contact with the
switches pass into the inclined part of the cam-groove which will throw the jaws
forward, they at that time being inade to grasp the full bobbin upon the spindle, and
thereafter as the rock shaft continues to-rise-the pin will travel in the short vertical
part of the groove up to the top thereof during which time the jaws will, lift the full
bobbin from the top of the spindle, which done, the pin in the further upward move-
ment of the shaft will travel along in the inclined groove at the upper end of the

page_text: cam-plate and will pass the spring-held switch during which operation the full bobbin
will be carried back away from the top of the spindle and thereafter as the rock shaft
is lowered, the pin will travel down a long straight slot of the cam-plate to the lower
end thereof, during which time or immediately thereafter the operator will take the
full bobbin by hand from the jaws.
.
During this descent of the rock-shaft the jaws having the full bobbins, the jaws
containing the empty bobbin will be so operated as to place the empty bobbin above
the top of the spindle and push it down upon the spindle in the place of the full
bobbin which has just been removed.
During the upward movement of the rock-shaft a pin at the lower end of an arm,
securely fastened to the rock-shaft will travel from the bottom of the cam slot along
part of said slot but during the descent of the rock-shaft the said pin will meet a
switch point and be diverted into the by-pass portion of the cam slot, during which
time the cross bar with its attached jaws will be thrown forward and as the pin passes
down the straight part the empty bobbin will be placed upon the spindle it, being fully
placed upon the spindle by the time that the pin reaches a certain point, and while
the pin travels from that point under the switch into the cam slot the cross-bar is
pulled back away from the bobbin which is placed upon the spindle drawing its
jaws off from the bobbin and leaving it in place thereon.
I have described my invention as applied to a cap spinning frame, but I may
readily apply it to a flyer frame.
:
It will be understood that when the operator raises the rock-shaft to perform the
operation of doffing that the spindle-rail is lowered through the action of the
pinion acting through the rack the spindle being lowered until its top comes below
the top of the bobbin.
To do this the rod of the locking device referred to will be operated to release
the arms so that the jaws may be turned back out of operative position.
The lower end of the head is provided with an annular projection which enters
an annular groove in an oil cup which is supported upon the builder-rail.
To enable a flyer to be employed, it will be necessary also to remove from the
bearing the whorl, the head having the sleeve and the bobbin carrier and oil-cup
and also the builder-rail.
.$
This done, I reapply to the lifting rods the builder-rail but at a point lower
down on the said rods so that the builder-rail comes below the collar-rail.
The builder-rail will have connected to it the lower end of a tube extended upward
through the neck of the yoke the said neck having attached to it a whorl the flyer-yoke
having attached to it at its outer end a flyer having usual guide eyes through which
is extended the yarn after it has been wrapped about the flyer.leg.
The upper end of the tube has a button on which rests frictionally 'the base of the
bobbin of usual construction.
The rotation of the whorl by a band in usual manner rotates the flyer while the
builder-rail raises and lowers the tube and bobbin on the dead spindle in usual
manner to shape the yarn load or cop
Dated th: 09-1 dave of An 1000
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Spinning or Twisting Machinery.
I JAMES MARJERISON of Lawrence Essex. County in the State of Massachusetts
one of the United States of America, Machinist, 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:-
This invention relates to that class of spinning or twisting machines employing a
dead spindle carrying either a cap or a flyer, and has for its object to improve that
class of machine in such manner that in a machine employing caps,, the caps and then
the full bobbins may be automatically removed from the spindles and empty bobbins
be applied automatically thereto, but when a flyer is used an empty bobbin is auto-
matically removed from and a full bobbin is automatically applied to the dead spindle
in succession.
One feature of my invention in spinning and twisting machines consists ia a
spindle-rail and a series of dead spindles, and steps. for the same, combined with
spring-holders upon or by which the said steps are supported, as will be described.
My invention also comprehends a series of dead spindles; a series of sleeves loose
thereon and provided at their upper ends with heads; a series of whorls surrounding
the said sleeves and loosely connected therewith; a collar-rail provided with attached
bearings for the whorls; a series of caps mounted upon said spindles; a series of bobbin-
carrying. tubes adapted to be rotated by the said heads; a builder-rail; a series of
vibrating and vertically movable clamps or jaws to remove and then reapply the said
caps automatically, and with operating mechanism for the said jaws; substantially as
will be described.
My invention also comprehends a series of dead spindles; a series of sleeves loose
thereon and provided at their upper ends with heads; a series of whorls surrounding
the said sleeves and loosely connected therewith a collar-rail provided with attached
bearings for the whorls; a series of caps mounted upon said spindles; a series of
bobbin-carrying tubes adapted to be rotated by the said heads; a builder-rail ; a series of
vibrating and vertically movable clamps or jaws to engage full bobbins and remove
them from the spindle, and a second set of clamps or jaws to receive empty bobbins
and apply them to the said spindles, and operating mechanism to actuate the said
'clamps or jaws in the time and order to be hereinafter described.
Also, in a machine for spinning or twisting, a series of dead-spindles, and bobbins
surrounding and made movable on the same, and caps carried by the said spindles,
combined with three sets of jaws' or clamps, and means to actuate them in the proper
time and order, whereby one of the series of clamps grasps and removes the caps
from the spindles; another of the series of jaws engages the full bobbin and removes
it from the spindle while the third set of jaws carrying an empty bobbin applies it
upon the spindle, the first set of jaws thereafter reapplying the cap to the spindle,
substantially as will be described.
Also, in the combination with a dead-spindle, of a loosely surrounding rotating
and vertically movable slotted sleeve provided with a head to engage and rotate an

page_text: independent bobbin driving tube; a whorl supported in independent bearings and
having a stud or projection entering the slot of the said sleeve the bearing restraining
the whorl from vertical movement, a cap; and an independent builder-rail; and
means to raise and lower the said sleeve and the hobbin driving tube on the said
spindle as will be described.
Also, in the combination with a dead-spindle of a slotted sleeve surrounding the
same and provided with a head; a bobbin driving tube engaged by the said whorl
and restrained from vertical movement by suitable bearings; the whorl having a
projection to enter the slot of the sleeve and rotate the same on the spindle; and a
builder-rail having mounted upon it an oil-cup into which is extended a part of the
said head to lubricate the latter,-substantially as will be described.
Also, in the combination with a vertically movable spindle rail, and a series of steps
and spindles supported thereby; of a set of vibratory and vertically movable clamps
to receive empty bobbins; a set of vibratory and vertically movable clamps to remove
full bobbins; and supports and operating mechanism for the said clamps, as will be
described..
Also, in the combination in a spinning or twisting machine of the following
instrumentalities, viz.:-a spindle rail; a series of dead spindles; steps to support
them; a builder-rail, a series of tubes connected with the builder-rail and adapted to be
moved vertically thereby; rack bars; a rock shaft supported by the said rack-bars and
thus adapted to be moved vertically by them; a series of clamps or jaws a—gʻ.
operatively connected with said rock shaft and adapted to grasp the full bobbin ;
racks or toothed rods connected with the spindle-rail, and a driving shaft having
gears thereon, to operate, substantially as described.
Fig. 1 is a front elevation of a sufficient portion of a cap-spinning frame to enable
my invention to be understood.
Fig. 2 is a vertical section of Fig. 1 in the line a.
Fig. 3 is a sectional detail showing part of the bobbin-carrier, the head for driving
it and the oil cup and spindle.
Fig. 4 is a side elevation of the lower end of the bobbin-carrier.
Fig. 5 is a side elevation of the head 24.
Fig. 6 a bottom view of the bobbin-carrier.
Fig. 7 a top view of the head 24.
Figs. 8, 9 and 10 are successive details showing the different positions of the parts
during the upward movement of the rock-shaft e from the position Fig. 2.
Fig. 11 is a detail showing the positions of the parts in going, from the position
Fig. 10 back to the position Fig. 2.
Fig. 12 is a detail to be referred to, and
Fig. 13 is a detail showing a modified form, of my invention wherein a flyer is
used instead of the cap.
A is the frame-work of the machine, A¹ a cross-beam, A³ is a bearing secured to
the collar rail Aby a screw A, d² a builder-rail secured to the upper ends of the
rods d extended through bearings in the cross rail A2 and cross-beam A', and provided
at their lower ends with arms 13 attached firmly thereto by nuts 14, the outer
ends of the said arms receiving the screw-threaded portion 34 of the chain e secured
upon a hub e¹ of a shaft e².
The builder-shaft may in practice be operated in usual manner.
B is a step-rail, to which are secured at suitable intervals by screws 2 supporting
pieces B¹, one for each spindle, the said supporting pieces, see Fig. 2 entering annular
grooves in the foot steps or lower bearings B for the dead spindles B³, the said
supporting pieces being composed of spring steel to enable any bearing B to be
readily lowered to permit a dead spindle to be withdrawn.
The bearing A³ receives between its horizontal portions a whorl 6' having a sleeve-
like portion at its lower side and a sleeve-like portion at its upper side, the said sleeve-
like portions being journaled see Fig. 2, in the bearing A³, the sleeve-like portion
extended upwardly from the whorl having a flange 60 which rests upon the bearing A
Within the whorl and its sleeve is introduced the tubular shank 25 of the head 24,

page_text: slotted as shown in the said Fig. 2, the said tubular shank being extended through an
oil cup 23, then through the builder-rail and the whorl, the said sleeve being slotted
longitudinally and receiving in it the key 27, shown as a screw extended through the
flange 60.
In this way the rotation of the whorl carrying with it the key or stud 27 within the
slot of the sleeve 25 rotates the latter sleeve, and with it the bobbin-carrying head 24.
The base 31 of the bobbin driving tube 31 has at its underside a foot 30 which
enters the hole 29 in the head 24, see Figs. 6 and 7, a pin 32 carried by the said base
entering the usual notch in the bottom head of the bobbin d, thus carrying the
bobbin with the bobbin-driving tube.
Each dead spindle has mounted upon its upper end a cap 33, the operation of which
is well understood to those familiar with what is called cap spinning.
The spindle rail B has attached to it at suitable distances apart two or more rack
bars c which are extended up through bearings in the cross-rail A', the rack teeth
being at the front sides of the bars.
These rack teeth are engaged by pinions 6 fast upon a doffer shaft 6º, herein.shown
as provided with a hand wheel 6 located outside the frame-work by which the doffer
shaft may be rotated in one or the other direction at the desired times by hand, but.
this hand wheel may be placed upon any other part of the shaft between the sides of
the frame.
'
The doffer-shaft has connected with it other pinions, as e³, which engage the rack-
bars e which have bearings at e, the said bearings being connected to a stand 43
suitably attached to the cross rail A' and extended outwardly therefrom.
There are several of these rack-bars e', and at their upper ends they have bearings
for the rock-shafte which serves to carry the devices, to be described, which give
motion to the various jaws, as for instance the jaws t, which are employed to auto-
matically apply and remove the caps; the jaws g which are employed to automatically
apply the bobbins d; and the jaws which are employed to automatically remove
the full bobbins f. b. in their proper time and order.
The jaws referred to are composed of two members pivoted upon a screw-
stud 61 having a collar near the middle of its length to rest upon an extension plate 62;
slotted as in Fig. 2 through which is extended the threaded portion of the screw stud,
the said portion receiving upon it a nut-63 by which to hold the stud in adjusted
position.
The extension plate 62 is bolted to a cross rail w fixed to the upper ends of
arms pivotally connected by a rod 64 to arms 10 bolted to arms w, the hubs of
the arms w being mounted loosely upon the rock shaft e, each arm w having at
its lower end a stud te which enters a cam slot 50 in a long cam plate w fixed to a
stand 42, see Fig. 12 rising from the rail A¹.
The rod 64 see Figs. 1 and 2, serves as the pivotal connection between the arms tod
and w³, the said rod having attached to it a locking pin or device 65. by a screw 66,
a spiral spring 67 surrounding the rod and bearing against the arm wat one end,
and at its other end against the collar 68 on the rod 64.
The spring 67 normally holds the locking device in engagement with two arms w³, w
but by pushing the rod longitudinally as to the left in Fig. 1, the pin may be removed
from its engagement with the arm to and permit the bar and its attached jaws t to
be turned back out of, operative position.
At times I shall dispense with the arms to³ and jaws t, as when a flyer is used, as
will be described.
The jaws t are normally held together by means of a spiral spring 69 attached to
studs carried by the said arms.
The jaws gare pivoted between their ends by pivots 70 see Fig. 10, each in an
extension plate 71 firmly fixed to a cross bar g³, carried by arms g bolted to arms 9,
in turn attached to or forming part of arms f, the hubs of which are fast on the
rock-shaft e to the lower ends of the arms fhaving roller or other-studs. f1 which
enter cam-slots in a cam-plate f³ bolted to a stand 41.

page_text: The jaws g² are normally kept closed by means of a spiral spring 72 as shown in
Fig. 1.
The jaws are substantially the same in shape as the jaws g*, and they are mounted
in like manner upon extension plates 73 bolted to a cross-rail 3 in turn bolted or
fixed to the upper ends of arms 2 bolted to arms 1, the hubs of which are mounted
loosely upon the shaft es, the lower ends of the arms having roller or other studs 15
which enter cam slots in a, cam-plate fixed to the stand 40, the stands 40 and 41
being both bolted to the rail A'.
The cam-plate has a long straight groove 16 which is crossed by spring-held
switches 48, 49, so that the pin 15 starting from the bottom of the groove 16 will
arrive in contact with the switches 48, pass into the inclined part 16* (see Fig. 8) of
the cam-groove 16 which will throw the jaws he forward, as in said Fig. 8, they
at that time being made to grasp the full bobbin upon the spindle, and thereafter as
the rock shaft e continues to rise the pin 15 will travel in the short vertical part of
the groove up to the top thereof, as shown in Fig. 9 during which time the jaws
will lift the full bobbin from the top of the spindle, which donc, the pin 15 in the
further upward movement of the shaft e will travel along in the inclined groove 16*
at the upper end of the cam-plate and will pass the spring-held switch 49, during
which operation the full bobbin will be carried back away from the top of the spindle,
as represented in Fig. 10, and thereafter as the rock shaft e is lowered, the pin 15
will travel down the long straight slot 16 of, the cam-plate ¹ to the lower end
thereof, during which time or immediately thereafter the operator will take the full
bobbin by hand from the jaws.h:
During this descent of the rock-shaft, the jaws having the full bobbins, the
jaws containing the empty bobbin' d will be so operated as to place the empty
bobbin above the top of the spindle as represented in Fig. 4, and push it down upon
the spindle in the place of the full bobbin which has just been removed.
During the upward movement of the rock-shaft e the pin f¹ at the lower end of
the arm securely fastened to the rock-shaft e will travel in the direction of the
arrow, see Fig. 10, from the bottom of the cam slot 37, along the straight part of
the said slot into the position Fig. 10, but during the descent of the rock-shaft e the
said pin fwill meet the switch point 36 and be diverted into the portion 37* of the
cam slot, during which time the cross-bar g³ with its attached jaws g will be thrown
forward, as represented in Fig: 4 and as the pin f passes down the straight part 37°,
the empty bobbin will be placed upon the spindle B³, it being fully placed upon the
spindle by the time that the pin f1 reaches the point f*, and while the pin travels
from the point f* under the switch 38 into the cam slot 37, the cross-bar g3 is pulled
back away from the bobbin which is placed upon the spindle drawing its jaws off from.
the bobbin and leaving it in place thereon.
Fig: 2 shows the full bobbin by dotted lines, but it will be noticed that in said
Fig. the rock-shaft is just ready to rise, and at that time the jaws. are empty, the
full bobbin being dotted into the jaws in said Fig. merely to show the lowest position
to which the full bobbin will be taken by the jaws when removed from the
spindle:
When the rock-shaft e commences to rise, the roller or other stud w² is at the
bottom of the slot 5C, as shown in Fig. 2, and as the said rock-shaft is raised through
the gears on the doffer-shaft 15, the roller or other stud w travels up along the
said slot from the position Fig. 2, and while passing from the point 74 to the
point 75 the jaws are thrown forward to engage the cap 33 as shown in Fig. 12,
and thereafter while the roller stud travels in a straight portion of the cam
slot 50, the jaws t lift the cap from the spindle, and when the roller stud passes the
corner 76 of the cam-slot the said jaws are thrown quickly back, and while the
stud 2 passes from the point 77 to the upper-end of the cam-slot 50, the jaws &
are thrown into the position shown by Fig. 10, at which time the jaws 9 are
quickly thrown forward with the empty bobbin and place it upon the spindle, as
described.

page_text: The different diagrams show the various jaws in their different positions, and from
the description and the drawings the operation of the devices will be understood, as
for instance, when the rock-shaft e commences to rise for the purpose of doffing, the
spindle rail B commences to fall and the jaws g having been supplied with empty
bobbins:
Now as the rock-shaft rises the jaws are thrown in to grasp the cap 33 and take it
off, after which the empty jaws ho grasp the full bobbin and lift it off from the spindle,
this done, the jaws containing an empty bobbin in the descent of the shaft
immediately place the said bobbin upon the spindle in place of the full bobbin just
removed; the jaws g push the empty bobbin down upon the spindle and the jaws t
restore the cap in place, after which all the jaws further descend, the jaw hº taking
with it the full bobbin.
It will be noticed that the cam plate w does not have switches in its cam groove,
and consequently the jaws t partake of the same movement when they descend as when
they are elevated. In some of the Figs. I have shown the cap and the full bobbin
and the empty bobbin in position without their jaws to illustrate the position of such
parts with relation to other parts which are more fully shown, such plan of illustration
being selected to avoid complication of the drawings.
I have described my invention as applied to a cap spinning frame, but I may readily
apply it to a flyer frame.
It will be understood that when the operator raises the rock-shaft e to perform the
operation of doffing that the spindle-rail B is lowered through the action of the
pinion acting through the rack the spindle being lowered until its top comes
below the top of the bobbin. To do this the rod 64 of the locking device referred to
will be operated to release the arms wo, so that the jaws t may be turned back out of
operative position. The lower end of the head 24, see Fig. 3, is provided with an
annular projection which enters an annular groove in an oil cup-23-which is supported
upon the builder-rail.
To enable a flyer to be employed it will be necessary also. to remove from the
bearing A³ the whorl, the head 24 baving the sleeve and the bobbin carrier and oil-
cup and also the builder-rail.
This done, I reapply to the lifting rods e the builder-rail d, but at a point lowor
down on the said rods, so that the builder-rail comes below the collar-rail A³, see Fig. 13.
The builder-rail will have connected to it the lower end of a tube 77 extended
upward through the neck 78 of the yoke 79, the said neck having attached to it a
whorl ', the flyer-yoke having attached to it at its outer end a flyer 80 having usual
guide eyes 81 through which is extended the yarn after it has been wrapped about the
flyer leg.
The upper end of the tube 77 has a button 82 on which rests frictionally the base of
the hobbin d of usual construction.
.
.
The rotation of the whorl by a band in usual manner rotates the flyer, while the
builder-rail raises and lowers the tube and bobbin on the dead spindle in usual manner.
to shape the yarn load or cop.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :
1. In a spinning and twisting machine, a spindle rail, and a series of dead spindles,
and steps for the said dead spindles, combined with spring-holders upon or by which
the said steps are supported so as to be detached therefrom, substantially as described.
2. In a spinning and twisting machine, a series of dead spindles; a series of
sleeves loose thereon and provided at their upper ends with heads; a series of whorls
surrounding the said sleeves and loosely connected therewith; a collar-rail provided
with attached bearings for the whorls; a series of caps mounted upon said spindles ;
a series of bobbin-carrying tubes adapted to be rotated by the said heads; a builder-
rail; a series of vibrating and vertically movable clamps or jaws to remove and then
reapply the said caps automatically, and with operating mechanism for the said jaws,
the combination being and operating substantially as described.

page_text: 3. In a spinning and twisting machine, a series of dead spindles; a series of sleeves
loose thereon and provided at their upper ends with heads; a series of whorls
surrounding the said sleeves and loosely connected therewith; a collar-rail provided
with attached bearings for the whorls; a series of caps mounted upon said spindles ;
a series of bobbin-carrying tubes adapted to be rotated by the said heads; a builder-
rail; a series of vibrating and vertically movable clamps or jaws to engage full
bobbins and remove them from the spindle; .and a second set of clamps or jaws to
receive empty bobbins and apply them to the said spindles ; and operating mechanism
to actuate the said clamps or jaws in the time and order, substantially as herein
described.
4. In a machine for spinning or twisting, a series of dead-spindles, and bobbins
surrounding and made movable on the same, and caps carried by the said spindles,
combined with three sets of jaws or clamps, and means to actuate them in the proper
time and order, whereby one of the series of clamps grasps and removes the caps from
the spindles, another of the series of jaws engages the full bobbin and removes it from
the spindle while the third set of jaws carrying an empty bobbin applies it upon the
spindle, the first set of jaws thereafter reapplying the cap to the spindle, substantially
as described.
5. The combination with a dead-spindle, of a loosely surrounding rotating and
vertically movable slotted sleeve provided with a head to engage and rotate an
independent bobbin-driving tube; a whorl supported in independent bearings and
having a stud or projection entering the slot of the said sleeve the bearing restraining
the whorl from vertical movement; a cap; and an independent builder-rail; and
means to raise and lower the said sleeve and the bobbin driving tube on the said
'spindle, substantially as described...
6. The combination with a dead-spindle of a slotted sleeve surrounding the same
and provided with a head; a bobbin driving tube engaged by the said whorl and
restrained from vertical movement by suitable bearings, the whorl having a projection
to enter the slot of the sleeve and rotate the same on the spindle; and a builder-rail
having mounted upon it'an oil-cup into which is extended a part of the said head to
lubricate the latter, substantially as described.
7. The combination with a vertically movable spindle rail; and a series of steps
and spindles supported thereby; of 'a set of vibratory and vertically movable clamps
to receive empty bobbins; a set of vibratory and vertically movable clamps to remove
full bobbins; and supports and operating mechanism for the said clamps, substantially
as described..
8. The combination in a spinning or twisting machine of the following instru-
mentalities, viz. a spindle-rail; a series of dead spindles; steps to support them;
a builder-rail; a series of tubes connected with the builder-rail and adapted to be
moved vertically thereby; rack-bars; a rock-shaft supported by the said rack-bars
and thus adapted to be moved vertically by them; a series of clamps or jaws a―g*,
operatively connected with said rock-shaft and adapted to grasp the full bobbin
racks or toothed rods connected with the spindle-rail, 'and, a driving shaft having
gears thereon to operate, substantially as described.
Dated the 31st day of December 1888