for Threading the Carriages.
Year: 1886

page_text: Date of Application, 29th Apr., 1886.
Complete Left, 27th Jan., 1887.
Complete Accepted, 8th Mar., 1887.
for Threading the Carriages.
I, JOHN HENRY JOHNSON, of 47 Lincolns Inn Fields in the County of Middlesex,
Gentleman, do hereby declare the nature of this Invention to be as follows:-
This Invention relates moro particularly to machinery for automatically removing
the empty bobbins from the carriages of lace machines (bobinet) supplying full
bobbins and threading the carriages with the thread on the full bobbins by a series of
consecutive operations; but it is or may be applied at least in part to machinery for
performing separately one or more of these operations.
The present Invention enables hand labour to be dispensed with and consequently a
considerable saving to be effected in lace making.
The Invention consists, firstly, in a holder or holders for the carriages which permit
a bobbin to be removed from a carriage or inserted into the same or to be removed
and replaced by another, while the carriage is retained in the holder.
The Invention consists, secondly, in the following appliances for effecting or assisting
in the removal of the bobbins; namely, a retractor for lifting the spring on the carriage
away from the bobbin so that it does not interfere with the removal of the bobbin; a
bobbin lifter or lifters for pressing the top of the bobbin beyond the carriage so that it
can be slipped out; and an extractor for withdrawing the bobbin from the carriage.
These appliances are operated by appropriate mechanical means, such for example, as
cams and connections.
The Invention consists, thirdly, in the following appliances for effecting or assisting
in the insertion of the bobbins, namely; bobbin holding mechanism for supporting the
bobbin in proper relation to the carriage, so that by an edgewise motion it can be
slipped into the carriage; a bobbin inserter or bobbin inserting mechanism for giving
the requisite edewise motion to the bobbin ; a carriage spring replacer or means for

page_text: applying the carriage spring to the bobbin. Practically, the same devices which
retract the spring for removing a bobbin are or may be employed to restore the spring
when a bobbin is inserted.
The Invention consists, fourthly, in means for delivering bobbins as they are required
for insertion in the carriages or bobbin delivery mechanism.
The Invention consists, fifthly, in tension appliances for holding the threads from
full bobbins so as to prevent their becoming entangled with one another.
The Invention consists, sixthly, in means for threading the carriages or carriage
threading mechanism. Practically, a hook for drawing the thread through the eye or
thread guide on the carriage, and a thread carrier for placing the thread in the hook,
are used for the purpose, said hook and thread carrier being operated by suitable
mechanical means, for example, as cams and connections.
The Invention consists, seventhly, in carriage delivery mechanism or means for
delivering carriages to the carriage holders or carriage-holding mechanism.
The Invention consists, eighthly, in means for removing the carriages from the
holders or carriage removing mechanism.
The invention further comprises the combination with each other of two or more
of the before mentioned means, mechanisms or appliances and also certain special
constructions combinations and arrangements of parts as hereinafter set forth.
It is designed to unite in one machine all the parts improvements and combinations
included within the invention but it is evident that this is not essential, some parts of
the invention being susceptible of use separately.
The following is a brief description of what is considered the best mode of applying
the principle of the invention.
A moveable bed preferably in the form of a horizontal revolving disk mounted upon
an upright shaft in the machine frame is provided with recesses of a form and depth
adapted each to receive a carriage flush with the upper surface of the bed.
A carriage box adapted to keep the carriages in proper position, and preferably
upright contains a pile of the carriages, the bottom carriage resting upon the moveable
bed. As a recess comes under the carriage box the bottom carriage enters the recess
and is carried along with the bed or disk. The recessed bed forms one part of the
carriage holders, the other part consisting preferably of stationary plates or devices
of other suitable form which confine the carriages in the recesses as said carriages pass
beneath them. They extend over the edges of the carriages bearing the bobbin or
bobbin space exposed and accessible so that bobbins can be removed and inserted. A
spring retractor is used for each recess in the bed. All the retractors are carried with
the moveable bed and are actuated by a pair of stationary cam rings. Each retractor
is provided with a blade or point which at the proper time is brought against or
engages the spring of the carriage and is then moved outward so as to lift the spring
clear of the bobbin. The bobbin lifters of which there are or may be, one or more
(preferably two) to each recess are also carried with the moveable bed and actuated by
stationary cam rings. They press one end of the bobbin beyond the carriage, and
retain it in that position as long as desired. The extractor is moveable with reference
to the bed or recessed disk and is provided with a pin which enters or may enter the
holo or eye in the centre of the bobbin and draws the bobbin out of the carriage. At
this time the carriage spring is held out of the way by the retractor and the edge of
the bobbin is upheld by the bobbin lifters, preferably the last named are raised before
the spring is retracted so as to assist the retractor in engaging the spring. The
extractor is preferably a horizontal wheel provided with a series of extractor pins near
the periphery and journaled on the machine frame at the side of the bed or disk so as
to overlap the same and it is preferably driven by such gearing that the overlapped
parts move in the same direction the extractor pins at a greater speed than the carriage
from which it is to extract the bobbin. This wheel extractor delivers the removed
bobbin into a rotating receiver. To make the extractor pins enter the holes in the
bobbins they are or may be advanced by springs.
A bobbin box (preferably a slotted upright tube) contains a pile of wound (or full)
bobbins, and a tension apparatus consisting of an endless belt and an upright horn

page_text: holds the ends of the threads which are inserted between the belt and the horn. As
the pile of bobbins sinks by successive removals of the bottom bobbin. the tension belt
is revolved so that the threads are carried down with the bobbins. As a further
security against tangling a rotary brush is arranged to act upon the threads of the
bobbins near the bed or disc. To prevent the weight of the pile of bobbins from
pressing the lower bobbin against the bed (which would produce unnecessary wear
and let the bobbin threads get entangled in the above mentioned brush a bobbin
supporter carried by the machine frame and operated by a cam or projection on the
bed or disk is employed. When it is desired to release a bobbin the supporter is
withdrawn and when the pile of bobbins has descended it is restored. At the bottom
of the hobbin box there is a movable stop which prevents the escape of the bottom
bobbin until said stop is withdrawn. It is preferably formed by a lever fulcrumed on
the machine frame and operated by cams or projections on the disk. When a carriage
comes under the bobbin box, a pin carried by the bel or disc and operated by a
stationary cam ring rises and engages the bottom bobbin so that it is carried with the
bed or disk. During the removal of the bobbin from the bobbin box the bobbin is
kept level by appliances carried by the bed or dises and operated by stationary cams.
The pin which engages the bobbin is also given a side motion for inserting the bobbin
into the carriage. Preferably this lateral motion is imparted from a stationary cam
actuating a lever fulcrumed on the bed or disk through a bell crank also fulerumed on
the bed or disk and connected with the lever by a spring so that there is no liability
to injure the bobbin in case of irregularity in the action of the machine or defect of
form of bobbins or carriages. The insertion pin slides freely in a hole in the lever.
Before the bobbin can be inserted it must be adjusted into proper position so that the
ends of the semicircular verge are opposite the space between the sides of the bobbin.
This adjustment is effected by the bobbin holders which consist preferably partly of
the appliances on the bed or disk (the bobbin lifters and the other devices) and partly
of two lever arms carried by the machine frame and operated by cams on the bed or
disk through elastic arms so as to produce a yielding pressure upon the upper surface
of the bobbins. Each of these arins has a roller of moderate length through which it
bears upon the bobbin. The two rollers bear upon opposite sides of the centre of the
bobbin which latter being elamped between these and the appliances on the bed or disc
is adjusted as determined by the operating cams. The threading is done after or
during and after the insertion of the bobbin by a hook carried by the bed or disk and
actuated by a stationary cam. When the hook has been thrust through the eye of the
carriage the thread carrier introduces the thread into the hook and the latter descends
carrying the loop with it. The thread carrier is preferably mounted on a bridge
connecting the horn above mentioned with the machine frame and is actuated by
projections on the bed or disc through connecting mechanism.
The next operation is to restore the carriage spring so that it bears upon the edge
of the bobbin. This is effected by the stationary cam imparting the requisite motion
to the retractor.
A carriage ejector then lifts the carriage from its recess and a wheel provided with
pins like the bobbin extractor wheel removes it to a chute down which it passes to a
slowly moving endless belt, from which the carriages are gathered from time to time
by the attendant.
If the bobbin box be not supplied with bobbins the machines will simply remove
the bobbins if the carriage hox be supplied with empty carriages they will be filled
with bobbins. It is to be understood that for each recess in the bed or disc there is
a set of the appliances for manipulating the bobbins and carriages (including the
threading hook) which are carried by the bed or dise and also of the cams or
projections which operate the devices on the machine frame and that the same
stationary cams actuate the like appliances in the different sets carried by the bed
or disk.
J. HENRY JOHNSON.

page_text: COMPLETE SPECIFICATION.
Machinery or Apparatus for Removing Bobbins from the Carriages
of Lace Machines, for Inserting Bobbins into such Carriages, and
for Threading the Carriages.
I, JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention, which has been communi-
cated to me from abroad by the Willcox and Gibbs Sewing Machine Company of
New York in the United States of America Sewing Machine Manufacturers 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 more particularly to machinery for automatically removing
the empty bobbins from the Carriages of Lace Machines (bobinet) supplying full
bobbins and threading the carriages with the thread on the full bobbins by a series of
consecutive operations but it is or may be applied at each part to machinery for
performing separately one or more of these operations.
The invention consists firstly in a travelling holder or holders for the Carriages
which will carry the Carriages to or over suitable devices and permit a bobbin to be
removed by the action of said devices from a Carriage or inserted into the same or to
be removed and replaced by another while the carriage is retained in the holder.
The Invention consists secondly in the retractor provided with a pin for insertion
behind the carriage spring and mechanism whereby said retractor is actuated to lift
the spring on the carriage away from the bobbin so that it does not interfere with the
removal of the bobbin also in the combination with a travelling carriage holder or
holders of bobbins lifter or lifters for pressing the top of the bobbin beyond the
carriage so that it can be slipped out and an extractor for withdrawing the bobbin
from the carriage. These appliances are operated by appropriate mechanical means
such for example as cams and connections.
The Invention consists thirdly in the combination with a travelling carriage holder
or a series of such holders of the following appliances for effecting or assisting in the
insertion of the bobbins namely, bobbin holding mechanism for supporting the hobbin
in proper relation to the carriage so that by an edgewise motion it can be slipped into
the carriage; a bobbin inserter or bobbin inserting mechanism for giving the requisite
edgewise motion to the bobbin, a carriage spring replacer or means for applying the
carriage spring to the bobbin. Practically the same devices which retract the spring
for removing the bobbin are or may be employed to restore the spring when a bobbin
is inserted.
The Invention consists fourthly in the combination with the travelling carriage
holder or a series of such holders of means for delivering bobbins as they are required
for insertion in the carriages or bobbin delivery mechanism.
The Invention consists fifthly in tension appliances consisting of a belt movable step
by step, and a horn between which the threads may be placed for holding the threads
from full bobbins, so as to prevent their becoming entangled with one another.

page_text: The Invention consists sixthly in the combination with a travelling carriage holder
or a series of such holders of means for threading the carriages or carriage threading
mechanism. Practically a hook travelling with the carriage holder, or with each of a
series of such holders for drawing the thread through the eye or thread guide on the
carriage and a thread carrier for placing the thread in the hook, are used for the
purpose said hook and thread carrier being operated by suitable mechanical means
such for example as cams and connections.
The Invention consists seventhly in the combination with a travelling carriage
holder, or a series of such holders of carriage delivery mechanism or means for delivering
carriages to the carriage holders.
The Invention consists eighthly in the combination with a travelling carriage holder,
or a series of such holders of means for removing the carriages from the holders, or
carriage removing mechanism.
The Invention further comprises the combination with each other of two or more of
the before mentioned means, mechanisms, or appliances and also certain special
constructions combinations and arrangements of parts as hereinafter set forth.
It is designed to unite in one machine all the parts improvements and combinations
included within the invention but it is evident that this is not essential, some parts of
the invention being susceptible of use separately.
The following is a description of what is considered the best mode of applying the
principle of the invention reference being had to the accompanying drawings which
form a part of this specification.
Figure 1 is a perspective front view of a machine constructed in accordance with
the invention. Figure 2 a plan view of the same. Figures 3 and 5 views in
horizontal section on different planes. Figure 4 a partial view in horizontal section.
Figure 6 an end elevation and Figures 7-11 partial views in vertical sections on
different planes.
Like letters and reference numbers indicate like parts on all the figures.
A moveable bed A shown in the form of a horizontal revolving disc is mounted
upon and turns with an upright shaft B. It is provided with recesses D of a form and
depth adapted each to receive a carriage E flush with the upper surface of the bed.
The machine frame is composed of the plate F, the legs and cross pieces which
support it, the top plate G and the pillars H' H2 H3 bolted to the plate F and
supporting the top plate G. The shaft B is journaled in bearings on the plates FG,
and is revolved by a belt on pulley 1 through cross shaft 2 and bevel gears 3 and 4.
The recesses in the bed or dise A are preferably formed by cutting openings of the
right shape in a surface plate 5 (see figures 8-11) of the same thickness as the
carriages as this avoids forming the recesses in the solid metal. The carriage box is
formed as shewn by the rods 6 fastened at the upper ends to the top plate G and at
the lower ends to the stationary carriage holding plates 11. These rods are so
arranged that they keep the carriages from turning and that when a pile of carriages
is placed in the box or conduit formed by said rods the bottom carriage will register
with each recess in the bed when said recess comes below the mouth of the box. The
top plate G and the holding plates I¹ 12 are cut away to permit the carriages to he
introduced at the top and removed at the bottom of the carriage box. The holding
plate I is fastened by the bracket 7 to the pillar H and to the plate F by the bracket 8.
The holding plate is fastened to the plate F and holding plate 12 by bracket 8 to the
bobbin box M by the angle piece 9 (see Figure 3) and to the bridge P by angle
piece 10 (see Figure 9). The holding plate 3 is itself bent and has its foot fastened
to the plate F. The holding plates I1 12 13 are placed just above the bed or dise A.
A space whose width equals the diameter of the bobbins, is left between the inner
plate and the other plates 1 P-When a recess comes under the carriage box the
bottom carriage enters the recess and is carried along with the bed or disc under the
plates 12 13 which confine the carriages in the recesses. A series of travelling
carriage holders is thus formed the series extending in the direction in which the
bolders travel. The bobbins not being contined by the holding plates can be removed
or inserted.

page_text: A separate spring retractor is used for each recess or carriage holder. Each of these
retractors is or may be duplicates of the others. As shown each consists of a lever 11
(see Figure 10) pivoted to the bracket 100 on the underside of the bed or disc A, a
bell crank 15 pivoted to the lever 11 and a pin 13) at the upper end of the hell crank.
This pin works through a slot in the bottom of the recess, and is provided with a
blade or point so that the upper end may enter easily between the spring and bobbin.
All of the levers 11 are actuated by the stationary cam ring 14, all of the bell
cranks 15 by the stationary cam ring 16. A spring 12 tends to force down cach
lever 11. The cam 14 by raising the lever 11 and allowing it to fall raises and lowers
the pin 13 while the cam 16 by causing the bell crank 15 to rock on the pivot, gives
to the pin a movement lengthwise of the slot. This compound lever arrangement has
been adopted as the most convenient mounting for the retracting device or pin 13.
The bobbin lifters for each recess or carriage holder consist as shewn of pins 17
and 18 at the ends of levers 19 and 20 respectively Fig. 4 the levers being pivoted to
bracket 100, and resting at or near their front ends, the levers 19. upon the stationary
cam ring 21. and the levers 20 upon the cam ring 22. The pins rise and fall through
holes in the bottom of the recess, and when they rise they raise one edge of the bobbin
above the carriage, so that it can be slipped out by an edgwise motion.
The bobbin extractor is as shown in the form of a wheel K, provided near its
periphery with a series of depending pins 23 each pin being combined with a spiral
compression spring 24 (see Figure 7) for forcing it into the eye in the centre of the
bobbin when the pin is carried over it and a nut 25 for limiting the downward motion
of the pin. The wheel K is mounted upon, and turns with an upright shaft journaled
in the bracket 26. It is revolved by the spur gear 27 fixed on the shaft B Figs. 5 & 6
engaging the smaller spur gear 28 fixed on the shaft of wheel K. The gears are of
such relative size that the extracting pins 23 move faster than the hobbins, and are
thus enabled to extract the bobbins from the carriages.
The operation in detail of retracting the spring and extracting the bobbin can now
be understood (see Figures 5 and 10). The bobbin lifters 17 and 18 are first raised
by the inclines 29 of cams 21 and 22, acting upon levers 19 and 20, and immediately
thereafter while the bobbin is still pressed out, the retractor pin 13 is raised by the
incline 30 of cam 14 acting upon the lever 11 until said pin touches the bobbin and it
is then advanced by the incline 31 of cam 16 acting upon the bell crank 15, until said
pin engages the spring 32 of the carriage. The inclines 33 of cams 21 and 22 these
allow the bobbin lifters, and with them the edge of the bobbin to fall, the end of
the pin 13 entering between the bobbin and the spring. The pin 13 is then further
advanced by incline 31 until the spring is fully retracted as shewn in Figure 4. It is
kept in that position until the empty hobbin has been removed and a full bobbin
inserted. As the bed or disc A continues to revolve the bobbin lifters are again
raised by the inclines 34 of cams 21 and 29, and press out the bobbin at one edge. At
this time the bobbin is under the extractor wheel K and one of the pins 23 enters the
eye in the middle of the bobbin. As this pin moves faster than the carriage it draws
the bobbin out of the carriage and dragging it over the stationary platform 35
(Figure 2) whose upper surface is flush with that of the bed or disc A, delivers it into
the empty bobbin receiver L. The bobbin lifters are then allowed to descend by
inclines 304. The receiver L, as shown is in the form of a round table provided with
a raised rim, and is mounted upon an upright shaft 36 which is revolved slowly by the
belt 37 (see Figures 5 and 6) running on the pulleys 38 and 39 the larger one being
fast on the shaft 36, the smaller one on the shaft B.
The bobbin box M in the form of a slotted tube, is suspended from and fastened to
the top plate G by means of a flange 40 (see Figures 1 and 2) the top plate being cut
away to receive it. The endless belt N of the tension apparatus is stretched between
the pulley 41, carried by the top plate, and the pulley 42 (see Figures 3 and 8) on
the holding plate I. It is provided with holes or recesses to receive projections 43
(see Figure 2) on the pulley 41 to prevent slipping. The pulley 41 is fastened to a
ratchet wheel 44 and is driven by a reciprocating spring pawl 45 engaging the ratchet
wheel. This pawl is attached to the end of lever 46 which latter is vibrated by the

page_text: cam 47 fast on shaft B pushing it in one direction and the spring is attached to the
lever and is confined between the lever and the stationary pin 49. The bridge P
bolted to the pillar H3 is provided at its inner end with the upright horn 50 arranged
close to the belt N so that the threads inserted between them will be held in place and
be carried downwards as the belt revolves. When the full bobbins are placed in
bobbin box M the ends of the threads are led through the slot in the side of the bobbin
box and placed in the tension apparatus between the belt N and the horn 50. The
brush Qis fast on the shaft B and turns with the same. It acts upon the ends of the
threads and keeps them taut and thus serves also to prevent tangling.
The movable device R for upholding the pile of bobbins in the hobbin box is as
shewn in the form of a lever arin pivoted to the bracket 51 which in turn is bolted to
the pillar H. A projection 52 on one side of the lever arm enters a slot in the side of
the bobbin box and bears against the edges of a number of bobbins. The bearing
surface is fixed with leather rubber or other soft material. A spring 53 presses the
lever arm inward normally, so that it supports the pile of bobbins. At
however the lever arm is drawn back by the cams or projections 54 (of wher times
there is
one to each recess) on the edge of disc A, and the pile of bobbins is allowed to descend.
The cams or projections 54 act upon the tail piece 55 of the lever arm. The lever
arm R also operates as a brake to prevent the brush Qfrom unwinding the thread.
At the bottom of the bobbin box is a removeable stop, formed as shewn by the inner
end of lever S. This lever is pivoted at the outer end to the pillar H2 and is raised at
the proper times to allow a bobbin to pass out by the cams or projections 56 of which
there is one to each recess. These cams 56 as well as those numbered 57 and 58
(whose function is to control a portion of the bobbin holding mechanism hereafter
described) are placed on the top of a flat rim or annular extension 59 of the disc A.
They pass under the platform 35 and also under another platform 115 whose function
is explained below. The lower part of the bobbin box M. is cut away on one side as
shewn at 60 Figure 8 so that the bottom bobbin can be slipped out, provided the
lever S is raised at the time. The spiral tension spring 61 assists in holding down the
lever, and a set screw 62 limits its downward motion. For each carriage holder or
recess (see Figure 11) there is a pin T which plays through a boss 63 of lever U
(which is carried by the bed or disc A) and projects through a slot in the bottom of
the recess.
The lower ends of the pins T rest upon the stationary cam ring 64.
When a recess in the bed A comes under the bobbin box the pin T is raised by the
incline 65 and its upper end enters the eye in the bobbin at the bottom of the pile.
The stop lever S being raised at this time, the bobbin is carried out of the box, by the
pin T. Immediately before the pin T is raised the pins 66 and 67, or bobbin levellers
are lifted so as to bear upon the under surface of the bobbin and keep it level. These
levelling pins 66 and 67 (of which there are two to each recess) are mounted upon
levers 68 and 69 respectively, which levers are pivoted to the bracket 100. The outer
ends of levers 68 rest upon the stationary ring 70 those of levers 69 upon the
stationary cam ring 71. They are raised just in advance of pin T by the inclines 72.
Each of the pins T forms a bobbin inserter it being given a lateral motion for
inserting the bobbin by means of the stationary or bracket cam 73 which acts upon the
bell crank 74 and through the latter upon the lever U (see Figure 4). The bell
crank 74 is pivoted to the bed or disc A and is provided with a spring 75 for acting
upon the lever U so that if the motion of the pin T should be resisted the spring will
yield and breakage be thus avoided. A spiral tension spring 184 returns the lever U
when the insertion is completed. Before however the bobbin can be inserted it must
first be adjusted, so that the ends of the semicircular verge 76 are opposite the space
between the sides of the bobbin. This adjustment is effected by the bobbin holding
mechanism which as shown consist partly of the movable bobbin supporters on the bed
or disc A (namely the bobbin lifters 17 and 18 and the bobbin levellers 66 and 67)
and partly of the bobbin holder carried by the stationary frame of the machine and
consisting of the lever arms 77 and 78 each of which is provided with a bearing
roller 79. These arms are fastened to the inner ends of short rock shafts 80 and 81
journaled in brackets which depend from the bridge P. At the outer ends of the rock

page_text: shaft are elastic arms 82 and 83 which are acted upon by cams or projections 57
and 58, whenever a recess is under the bearing rollers 79, to cause said rollers to
press upon the bobbin. The rock shafts are or may be combined each with a
retracting spring 85 (see figure 9). The bobbin lifters 17 and 18 are raised by the
inclines 86 and the bobbin levellers 66 and 67 are allowed to fall by the inclines 87
while at the same time the bobbin is clamped by the bearing rollers 79 so that the
bobbin is held with the space between the sides of the bobbin being opposite and on a
level with the ends of the verge 16. At this time the lever U and insertion pin Tare
given the lateral motion for pushing the bobbin into the carriage. As the insertion
proceeds the bobbin lifters are carried over the inclines 806 and descend, the pressure
of the clamping arm 77 is diminished and that of the arm 78 increased, so that the
bobbin becomes more nearly horizontal as the insertion proceeds. The bottom of the
recesses in the hed or disc A is inclined as shewn at 84 Figure 11, so that the bobbin
can be adjusted properly for insertion.
The thread carrier consists as shewn of a pin C mounted upon an arm of a vertical
rock shaft 88 which is journaled in bearings of the bridge P. and is turned in onc
direction by the projections 89 (one for each recess) on the bed or disc A and in the
other by the spring 90. A bell crank 91 pivoted to a bracket on the pillar H³ is acted
upon by the projections and draws down upon the chain 92, which runs over the
pulley 93 on bridge P, and is wrapped partly around a hub on the rock shaft 88, so
as to turn the thread carrier to the left. The spring 90 draws upon the chain 94
which is wrapped in the opposite direction around the said hub and turns the thread
carrier to the right whenever the projections 89 release the bell crank 91. The pin C
enters the curved groove 185 in the holding plate I' when it is turned, and as it moves
to the left it engages the thread (stretched between the bobbin and the tension
apparatus) and lays it in a threading hook 95. Each of these hooks, there is one to
cach recess, is mounted on a carrier 96, guided by a hole in the bed or disc A, and
connected with the operating lever 97, which latter is pivoted to the bracket 100 at
one end and at the other end rests upon the stationary cam ring 98. During the
inserting operation as soon as the bobbin has uncovered the thread eye 99 not shewn
in carriage (see figure 11) the incline 101 acts upon the lever 97 and thrusts the hook
upward through the eye. When it is raised the thread carrier introduces the thread
and the incline 102 allows the hook immediately to descend and draw the looped
thread through the eye 99. When the insertion of the bobbin is complete the
incline 103 allows the insertion pin T to descend.
The carriage with the inserted bobbin is carried by the revolution of the bed or
disc A under the roller 104 mounted and turning upon a stud fixed to a stationary
bracket 105. At this time the inclines 106 and 107 allow the retractor pin 13 to
retire and the carriage spring is allowed to press upon the edge of a bobbin, its nib 108
(see Figures 3 and 4) entering between the sides of the bobbin. The hook 109
prevents the thread from getting under the roller 104.
Each recess is provided with a carriage ejector 110, mounted upon a lever 111
which is pivoted to a bracket 100, and at the outer end rests upon the stationary cam
ring 112. The ejector works through a hole in the bottom of the recess under the
front part of the carriage. The ejector is raised by the incline 113 and while raised
the carriage is removed by the wheel W. It is or may he constructed and operated
substantially as the bobbin extractor wheel K, and therefore needs no further
description. One of the pins 114 enters the eye in the bobbin and the rotation of
wheel W draws the carriage from the recess, drags it over the stationary platform 115
on to the chute 116 down which the carriage slides to the endless belt X. As the
carriage is removed from the bed or disc A the looped thread is held by the hook 95,
and the end of the thread is therefore drawn completely through the eye. As or before
the carriage enters the chute 116 one edge passes under the roller 117 and is held back
by it so as to turn the carriage into the position shown in Figure 2 with the thread
eye toward the bed or disc A. After the carriage has been removed the ejector 110
is allowed to descend by the incline 118 so that it does not interfere with the entry of
a new carriage into the recess when the latter passes under the carriage box.

page_text: The endless belt X is stretched on rollers 119 and revolved at intervals by a
reciprocating pawl 120 engaging a ratchet wheel 121 on the shaft of one of the rollers.
The pawl 120 is connected with the outer end of a lever 122 (see Figure 5) pivoted to
the plate F. The pawl is moved in one direction by the pin 123 on the gear wheel 124
(which operates the wheel W) and is returned by the spring 125. The upper portion
of the belt travels over a bed and serves as a carriage receiver. When a number of
carriages have collected on the belt they are removed by the attendant.
The operation of the machine will be understood from the foregoing description, but
a brief explanation of the operation as a whole, in the succession in which the different
steps are or may be performed, may be useful.
The carriage box 6 is supplied with carriages containing empty bobbins, the
bobbin box M with full bobbins, the ends of the threads being held by the tension
apparatus N 50.
Starting from a point where a recess D is under the carriage hox 6 and a carriage
has dropped into it, the revolution of the bed or disc A through an angle of thirty five
degrees (35°) brings the carriage well under the holding plates 1 12 which confine the
carriage in the recess. The bobbin lifters 17 and 18 then rise and press the edge of
the bobbin beyond the carriage and at thirty eight degrees (38°) the spring retractor
is lifted until the pin 13 touches or nearly touches the lower surface of the bobbin.
From thirty eight (38°) to forty five degrees (45°) the retractor pin 13 advances to
the periphery of the bobbin, whereupon the bobbin lifters 17 and 18 fall, and the blade
of the retractor pin 13 enters between the carriage spring 32 and the hobbin. The
retractor is then further advanced until the bed or disc A has turned through fifty
degrees (50°) by which time the spring 32 is fully retracted. During the next thirty
five degrees (350) of revolution, the parts remain as before except that the carriage
has passed from under the plate I and is now held by the plates and I³. At eighty
five (85°) degrees the bobbin lifters 17 and 18 again rise, and at ninety degrees (90°)
one of the pins of extractor wheel K enters the eye of the bobbin and during the next
four degrees draws out the empty bobbin and delivers it into the receiver L. At
ninety five degrees (95°) the bobbin lifter pins 17 and 18 fall. At one hundred and
seventy three degrees (173°) the bobbin levellers 66 and 67 rise, and two degrees after
the carriage being nearly central under the bobbin box M the bobbin supported R is
drawn back allowing the bobbins to descend and rest upon the bobbin lifters 17 and 18
and bobbin levellers 66 and 67. The stop formed by lever S being down prevents the
bottom bobbin from being drawn out by the friction. The insertion stud T now (175°)
rises and at (178°) (the carriage now being nearly and the insertion stud exactly
central under the bobbin box) enters the eye of the bobbin. The stop formed by
lever S being lifted at this time the bottom bobbin is slipped out from under the pile
which is now upheld by the bobbin supporter R, its pressure having been almost
immediately resumed. At two hundred and five degrees (2050) the bobbin levellers
66 and 67 have fallen, and the bobbin lifters 17 and 18 risen so as to bring the
bobbin into an inclined position with its edge opposite the ends of the verge 76
and the roller 79 of the arm 77 then presses upon the bobbin. Immediately the
lateral motion of the insertion stud T commences, and continues until the insertion
is completed, which occupies until two hundred and fifteen (215°) degrees. During
this operation the bobbin lifters 17 and 18 are allowed to drop, the pressure of the
arm 77 is relieved and that of arm 78 is applied so as to assist the insertion. The
thread carrier C which at two hundred (200°) degrees occupies the position shown
in Figure 2 at two hundred and five (205°) degrees has been advanced to the piston
shewn in Figure 3 and at two hundred and ten (210°) it has laid the thread in the
hook 95) which was lifted just previously-say two degrees). The book 95 immediately
sinks drawing the loop through the thread eye 99 of the carriage-At about two
hundred and twenty degrees (220°) the insertion stud T descends, and at about two
hundred and thirty degrees (2300) the retractor pin 13 releases the carriage spring 30.
At two hundred and sixty five (205°) degrees the carriage ejector 110 rises; at two
hundred and seventy a pin of the wheel W engages the bobbin and removes
B

page_text: both it and the carriage from the recess D in the bed and shortly after delivers
it down the chute 118 on to the receiving belt X. At two hundred and seventy
five degrees (275°) the carriage ejector 110 descends and the revolution of the hed
or dise A is then continued until completed.
It will be understood that each recess in turn receives a carriage from the carriage
box, and that the empty hobbin is removed and delivered into the appropriate
receiver La full bobbin inserted, the carriage threaded, and the threaded carriage with
its full bobbin delivered to the carriage receiver or endless helt X.
If the bobbin box be not supplied with bobbins, the machine will simply remove the
empty bobbins from the carriages and the mechanism for inserting the bobbins acts
idly. On the other hand if the carriages placed in the carriage box contain no bobbins
and the bobbin box be supplied with bobbins, the mechanism for removing the bobbins
will operate idly.
A particular and detailed description of the machine shown and its mode of operation
has been given for the purpose of shewing how the invention is or may be carried into
effect; and to enable others to make and use the same; but the invention is not
restricted to the precise details of construction or of operation, it being evident that
modifications can be made without departing from the spirit of the invention and that
parts of the invention may be used separately.
No means have been shown for supporting the carriage in the carriage box, as the
bobbins are upheld in the bobbin box by the movable device R, because the support of
the carriage is considered unimportant but it is evident that the supporting device R
is applicable to the carriage box, as well as to the bobbin box.
Having now particularly described and ascertained the nature of the said Invention
and the manner in which the same is or may be carried into effect, what I claim is
First. The combination with the recessed travelling bed and the gearing therefor, of
the holding plates for confining the carriages in the recesses substantially as described.
Second. The spring retractor having a pin for entering between the bobbin and the
spring in combination with a carriage holder and mechanism whereby said pin is
moved transversely to the carriage to insert the said pin and then parallel therewith to
retract the spring substantially as described.
Third. The combination with a travelling carriage holder and gearing therefor of
the bobbin lifters movable with said holder for pressing out the top of the bobbin and
the stationary cams for moving said bobbin lifters substantially as described.
Fourth. The combination with a travelling carriage holder, the gearing therefor,
the bobbin lifters moveable with said holder and the stationary cams for operating the
said bobbin lifters, of the bobbin extractor and mechanism for operating the same
substantially as described.
Fifth. The combination of a carriage holder a carriage spring retractor having a
pin for entering between the spring and the bobbin lifters, a bobbin extractor and
operating mechanism substantially as described.
Sixth. The combination with a series of travelling carriage holders and gearing
therefor the said series extending in the direction in which the said holders travel of
bobbin lifters for each carriage holder stationary cams for acting upon the bobbin
lifters, a bobbin extractor and mechanism whereby said Extractor is operated to
withdraw the bobbins successively substantially as described.
Seventh. The combination of the recessed travelling bed the gearing therefor, the
holding plates, the bobbin lifters travelling with said bed the stationary cans for
raising said bobbin lifters, the bobbin extractor and the mechanism for operating said
extractor substantially as described.
Eighth. The combination with a travelling carriage holder and gearing therefor of
bobbin supporter travelling with said carriage holder and moveable transversely
thereto stationary cams for operating said supporters a bobbin holder for pressing the
bobbin against said supporters a bobbin inserter travelling with said carriage holder
and stationary cams for operating said inserter substantially as described.

page_text: Nith. The combination of a carriage holder bobbin supporters moveable transversely
to said holder, a hobbin inserter, a carriage spring replacer having a pin for engaging
said spring and operating mechanism substantially as described.
Tenth. The combination with the series of travelling carriage holders and gearing
therefor, the said series extending in the direction in which the said holders travel, of
the moveable bobbin supporters for each carriage holder the stationary cams for acting
upon the said bobbin supporters the bobbin holder for pressing the bobbins against
said bobbin supporters, the bobbin inserters one for each carriage holder and the
mechanism operating the said bobbin inserted in succession substantially as described.
Eleventh. The combination of the series of travelling carriage holders the movable
bobbin supporters, the bobbin holder, the bobbin inserters the carriage spring replacers
having cach a pin for engaging the carriage spring and mechanism for operating
all the said devices to insert Bobbins into the carriage in each of said holders in
succession substantially as described.
Twelfth. The combination with the series of travelling carriage holders of the
stationary bobbin box, the bobbin supporters the bobbin holder, the bobbin inserters
and the operating mechanism for all said parts substantially as described.
Thirteenth. The combination with the bobbin box of the tension belt and horn and
mechanism for revolving said belt substantially as described.
Fourteenth. The combination with the bobbin box of the tension belt mechanism for
revolving the said belt, the horn and the rotating brush substantially as described.
Fifteenth. The combination with the travelling bed the gearing therefor and a box
for containing a pile of bobbins and delivering them in succession to said bed of a
movable device arranged a short distance above the bottom of said Box for upholding
the pile of bobbins therein and mechanism operating at intervals to withdraw said
device and permit the descent of said pile and the delivery of the bottom bobbin and
then to return said device into position for upholding the balance of said objects
substantially as described.
Sixteenth. The combination with the travelling bed the gearing therefore and the
hobbin box of the stop at the bottom of the box removable to allow the bottom bobbin
to be slipped out edgewise and the mechanism for withdrawing and returning said stop
substantially as described.
Seventeenth. The combination with the travelling bed the gearing therefor and
the bobbin box of the moveable stop for controlling the escape of bobbins from the
box, the devices or pins for keeping the bottom bobbin level, the stud for engaging
the bottom bobbin and mechanism for operating said stop said pins and said stud
substantially as described.
Eighteenth. The combination with a travelling carriage holder and the gearing
therefor of the threading hook moveable with said carriage holder the stationary cam
for operating the same the thread carrier and the mechanism for operating said thread
carrier substantially as described.
Nineteenth. The combination with a series of travelling carriage holders the series
extending in the direction in which carriage holders travel and the gearing for moving
said holders of bobbin delivery and bobbin inserting mechanism whereby bobbins are
delivered to the carriages in the several holders in succession and are inserted in said
carriages substantially as described.
Twentieth. The combination with the series of travelling carriage holders, the
series extending in the direction in which the carriage holders travel and the gearing
for moving said carriage holders of hobbin delivery and bobbin inserting mechanism
whereby a bobbin is delivered to and inserted into the carriage in each holder as it is
presented in its turn, the tension apparatus for holding the ends of the bobbin threads
and the carriage threading mechanism whereby the carriage in each holder is threaded
in its turn substantially as described.
Twenty first. The combination with the travelling bed having recesses corre-
ponding in form to the outline of lace machine carriages so as to receive and retain
the said carriages in a given position of the carriage box constructed and arranged to

page_text: register with said recesses as they come beneath it and the gearing for revolving said
bed substantially as described.
Twenty second. The combination with the series of travelling carriage holders
and gearing for moving the same having holding devices which bear upon the carriages
near the edges leaving the bobbin spaces exposed of carriage delivery mechanism for
supplying a carriage to each holder in its turn substantially as described.
Twenty third. The combination of the series of travelling carriage holders gearing
for moving the same carriage delivery mechanism and the bobbin removing or extracting
mechanism substantially as described.
Twenty fourth. The combination of the series of travelling carriage holders gearing
for moving the same the carriage delivery mechanism and the bobbin delivery and
bobbin inserting mechanisms substantially as described.
Twenty fifth. The combination with the series of travelling carriage holders and
gearing for moving the same of the bobbin removing or extracting mechanism, the
bobbin delivery mechanism, and the bobbin inserting mechanism, substantially as
described.
Twenty sixth. The combination of the series of travelling carriage holders gearing
for moving the same the carriage delivery mechanism, the bobbin removing or
extracting mechanism, the bobbin delivery mechanism the bobbin inserting
mechanism the tension apparatus and the carriage threading mechanism substan-
tially as described.
Twenty seventh. The combination with the recessed travelling bed and the gearing
for revolving the same of the holding plates the carriage ejectors movable with said
bed the cam for operating the same and the mechanism for withdrawing the carriages.
Twenty eighth. The combination in one machine of the recessed travelling bed, the
gearing therefor, the holding plates the carriage box the bobbin extracting mechanism
the empty bobbin receiver the bobbin box the tension apparatus the bobbin inserting
mechanism the carriage threading mechanism and the carriage receiver substantially
as described.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent.