IMPROVEMENTS IN EMBROIDERY MACHINES
Year: 1883

page_text: "
LETTERS PATENT to Arthur William Lovell Reddie of the Office for Patents
66 Chancery Lane in the County of Middlesex, Patent Agent for an
Invention of "IMPROVEMENTS IN EMBROIDERY MACHINES communicated
to him from abroad by Julius Jonson of the City and State of New York,
United States of America
PROVISIONAL SPECIFICATION left by the said Arthur William Lovell
Reddie at the Office of the Commissioners of Patents on the 8th May
1883.
ARTHUR WILLIAM LOVELL REDDIE of the Office of Patents, 66 Chancery
Lane in the County of Middlesex, Patent Agent "IMPROVEMENTS IN EMBROIDERY
MACHINES." [communicated to him from abroad by Julius Jonson of the City
and State of New York, United States of America]
This invention relates to what are commonly known as the "Heilmann" or
"Swiss" embroidery machines, in which the fabric to be embroidered is stretched
between beams or rollers in a balanced frame which is moved by means of a
pantagraph or other suitable pattern mechanism to produce the desired pattern;
and the work is performed by double pointed needles, having eyes at about the
middle of their length, and which are passed through the fabric from side to side
and each of which carries a length of thread one end of each thread being attached
to the cloth and the other end to the eye of the needle.
In machines of this class there are commonly employed two distinct sets of
needles arranged in two horizontal rows and operated by means of two needle
carriages, arranged on opposite sides of the fabric frame, and movable towards and
from the fabric, or having an outward and inward traverse to insert the needles
alternately from each side of the fabric and to draw them and the threads carried
by them through the fabric, the clamps which hold the needles being operated by
properly timed mechanism; so that after the clamps of one carriage have grasped
the ends of the needles which have been inserted through the cloth the clamps of
the other carriage will be opened to release the needles.

page_text: As the work progresses the extent of movement of the carriages diminishes,
owing to the shortening of the threads, and consequently the mechanism for
operating or driving the needle carriages must be reversed a little sooner or after
a shorter outward traverse or movement in each succeeding stitch-producing
operation. It is also essential that the traverse or movement of the carriages should
be reversed at the instant, or just before the threads are drawn taught so that the
embroidery will be of a uniform character and neither too loose or too tight.
Several plans have been devised for reversing the movement of the carriages
automatically at the end of their outward traverse and there have been employed
for this purpose, teusion bars or rods which are raised by the threads as they are
drawn taught. In some cases the tension bars or rods have been connected by
suitable mechanism with belt shippers or clutches so as to operate them directly to
reverse the movement of the carriages and in other cases there has been employed
a reversing gear arranged upon the fixed portion of the machine, at a distance from
the carriages, and adapted to operate automatically on the removal of a latch or
stop to reverse the driving mechanism of the carriages; and the said latch or stop
being so connected with a tension bar or rod that it will be withdrawn by the
rising movement of said bar or rod.
The machines of the kind first above mentioned are objectionable because of the
force or power which must be exerted by the threads to move the tension bar or
rod, and also because the movement of the belt shippers or clutches in shifting is
gradual and exactly proportionate to the rising movement of the tension bar or
rod; and it is therefore difficult to produce by such means the complete reversal of
the belt shippers or clutches.
The machines of the kind last above mentioned are objectionable because the the
reversing gear is arranged at such a distance from the carriages and so many
parts are employed for transmitting motion to the carriages from the point
where it is reversed, that there is an appreciable interval between the reversal
of the driving mechanism and the reversal of the carriages and the latter are
therefore liable to move too far and to draw the threads too tightly.
The principal object of this invention is to enable the reversing of the movement
of the carriages to be performed with greater certainty and at the instant when it
is desired and thereby to obviate the defects which have been inherent in machines
in which the reversing is effected by means of tension bars or rods; but in some
cases it may be desirable to effect the reversing of the carriage driving mechanism
by other means than the tension bars and in such case any suitable tripping
mechanism like that employed in planers for example, may, according to this
invention, be employed.
The invention therefore consists in the combination in an embroidery machine
containing a fabric frame and needle carriages having an outward and inward
traverse or movement from and towards the said frame for the purpose of
inserting the needles into the fabric alternately from opposite sides and of drawing
them and the thread carried thereby through the fabric, of driving mechanism
arranged upon said carriages for imparting motion to them and reversing gear
also arranged upon said carriages for automatically reversing the said driving
mechanism to terminate the outward movement of the carriages and move them
inward.
Generally a tension bar will be connected with the reversing gear for releasing
it by the upward movement produced by the inscreasing tension on the threads as
they are tightened, but in some exceptional cases it may not be desirable to utilize
the movement of the tension bar to reverse the movement of the carriage, because
of the extreme fineness or small number of threads and in such cases a mechanism
similar to that by which the stroke of a metal planer is altered may be employed
to trip a latch or bolt to release the reversing lever making such mechanism
adjustable, while the machine is in operation. In case of such a change a device
independent of the reversing mechanism would be employed to produce the proper
tension on the threads.

page_text: The invention also consists in the combination with a stationary rack or
equivalent device, of driving mechanism engaging therewith, clutches for reversing
the driving mechanism, latches for holding the clutches in one operative position
to adapt the driving mechanism for moving the carriages in one direction and
springs or. their equivalent weights for moving the clutches when released to
reverse the driving mechanism and adapt it for moving the carriages in the
opposite direction. When tension bars are connected with the above mentioned
latches, each tension bar serves when raised upwards by the tightening of the
threads to withdraw the latch with which it is connected, and the clutch is
instantly thrown over by the spring or weight and so reverses the driving
mechanism and the direction of movement of the carriage. So quickly is this
reversing accomplished that the thread or fabric is not unduly strained and the
carriage may even commence its return or inward movement without having
completely straightened the threads though the latter will always have a sufficient
tension produced on them by the tension bars.
With the above springs or weights and clutches there are combined stops, which
serve to retract the springs or weights and to move the clutches into engagement
with their latches at the termination of the inward movement of the carriages.
The invention also relates to various details in the construction and arrangement
of the parts employed in the driving mechanism and reversing gear which are
hereinafter more fully referred to.
The invention alsó consists in the combination in a machine containing the
fabric frame and movable needle carriages of two intermittently rotating cams
adapted to operate simultaneously and to be connected with their operating
mechanism by the inward movement of either carriage devices through which one
of said cams acts to connect either carriage with its driving mechanism for
moving it outwards and devices through which the other cam acts to disconnect
both cams from their operating mechanism. Both of the aforesaid cams may be
upon an intermittently rotating sleeve and there is combined therewith a stop and
devices adapted to be acted upon by either carriage in its inward movement
for connecting the said sleeve with its operating mechanism and withdrawing
the stop.
The cam above described as serving to connect either carriage with its driving
mechanism or to reverse the said mechanism for moving the carriage outwards
performs its function by acting upon the clutch or a lever connected therewith and
thus reverses the driving mechanism.
The main frame of the machine is suitably constructed to support the operating
mechanism and the fabric frame which extends from side to side of the machine is
provided with beams or rollers on which the fabric is carried and by which it is
stretched. The fabric frame may have motion imparted to it in a vertical and
horizontal direction for producing the desired pattern by a pantagraph, Jacquard
mechanism or other suitable devices such as are commonly used for this class of
machines; but such mechanism forms no part of this invention.
"
The needle carriages which are arranged on opposite sides of the fabric frame
may be constructed like those used in the "Heilmann or "Swiss" machines
before referred to.
The needle carriages are provided each with upper and lower rows of needle
clamps which are made and attached to the carriages in the usual way and which
may be opened to receive and deliver the needles by means of rock shafts provided
with eccentric portions or cams which bear on the tails of the movable jaws of the
pincer-like needle clamps. All the clamps of each carriage may be opened by a
vertically movable rod connected with the rock shaft of each carriage. This
mechanism for operating the needle clamps is the same as has been before
used.
:
".
Each carriage is composed of two end frames between which extends a hollow
brace through which passes a countershaft. At each end of the carriage are
supporting wheels or rollers which run upon ways provided for them on the frame

page_text: of the machine; and the carriage is moved along said ways by a system of spur
wheels which is set in operation by the said counter shaft and one wheel of which
engages with a stationary rack on the frame. This invention is not restricted to
a toothed rack for a V-shaped rack or bar with which the V-shaped wheels engage
by their friction may be employed as an equivalent; or instead of the toothed
wheels gearing with the racks there may be upon the counter shaft a pulley round
which would pass a belt both ends of which were secured at fixed points at or near
the ends of the track.
..
On one end of the counter shaft is a bevil wheel and each wheel engages with
a pair of bevil wheels supported in brackets on the carriages. The system
of spur and bevil wheels constitutes a train of driving mechanism on and for
each carriage. A driving shaft is arranged in suitable bearings upon the side
of the machine and is rotated continuously in one direction by any suitable
means.
Two pairs of the bevil wheels are entirely loose upon the driving shaft and
between the wheels of each pair is a clutch piece which is locked to the shaft so
as to turn therewith by a feather and which may move freely longitudinally
thereon.
Each clutch piece is operated by a lever which extends downwards and may be
slightly resilient or elastic so that when it is deflected, its resilience will hold the
frictional surfaces of the clutch piece in engagement with the frictional surfaces of
the bevil wheels to which it is desired to transmit motion. Consequently it will
be seen that by moving the reversing lever in one direction or the other, one or
the other of the said wheels will be locked to the driving shaft and will impart
motion to the counter shaft in a proper direction to move the carriage towards or
from the fabric frame.
The manner of adjusting the carriage driving mechanism for moving the
carriages away from the fabric frame will now be described. To give such
movement to the carriage the reversing lever must be adjusted to hold the clutch
piece in engagement with the bevil wheel and the lever is held in such position
by a sliding latch or bolt projecting horizontally from the side of the carriage.
When the reversing lever is moved in a direction to engage with the said latch
or bolt it acts upon the inclined end thereof and pushes it inwards but after the
lever passes the latch or bolt the latter springs outward in front of the lever under
the impulse of a light spring. To the rear or inner end of the latch or bolt is
connected a pivotted lever and to the opposite end of the said lever is applied a
withdrawing spring so that when the lever is not held by a pivotted hook or its
equivalent the withdrawing spring will vibrate its lever to pull back the latch or
bolt and release the reversing lever.
Upon each carriage is attached a rotary spring box in which is arranged a coiled
spring. The box is adapted to turn on a stud fixed in the side of the carriage and
the coiled spring is so attached that it has a constant tendency to turn the box in
the required direction. The spring box is connected with the reversing lever by a
strap or other connection so that when the latch or bolt is withdrawn the lever
will be pulled quickly over by the rotation of the spring box to carry the clutch
piece out of engagement with the one bevil wheel and into engagement with the
other wheel to move the carriage inwards towards the fabric frame.
The spring box with its connections and with the clutch and reversing lever
constitutes a reversing gear for reversing the driving mechanisın.
An auxiliary shaft is arranged parallel with and below the driving shaft and
derives motion therefrom through suitable gear wheels. Upon this auxiliary shaft
are secured two clutch pieces which rotate therewith and between them is arranged
a sleeve carrying two clutch pieces and movable upon said shaft. This clutch
sleeve is adapted to be moved longitudinally by means of a lever and when it is
adjusted into its intermediate position its clutches will be freed from the clutches
on the shaft and it will remain stationary while the auxiliary shaft continues its
rotation.
-

page_text: Upon the clutch sleeve is a cam and this cam when rotated imparts motion to a
vertical movable yoke which is connected to an arm fixed upon a rock shaft upon
which rock shaft is a rocking.yoke provided on opposite sides with jaws or recesses;
As the carriages approach the end of their inward movement the jaws receive
rollers or pins upon the vertically movable rods before described as connected with
mechanism for opening the needle clamps and as the rock shaft is oscillated the
rocking yoke moves the vertical bar of one carriage up to open the needle clamps
and moves the corresponding bar of the other carriage downwards to allow the
clamps of the last said carriage to close upon the needles.
The clutch sleeve and its attached cam are designed to rotate intermittently and
at each operation the cam is rotated half a turn before stopping. During the first
portion of its movement the cam does not impart any motion to the vertical yoke
but afterwards it raises or lowers the yoke and holds it. in a raised or lowered
position.
3
Upon the clutch sleeve at one side of the cam. are two projections placed
diametrically opposite each other and on the sleeve adjacent to the said cam is
another projection.
++
A vertically movable frame is arranged in guides in the same plane as the last
named projection and provided with two arms between which the said projection
works. The frame is connected with a bell crank or elbow lever and through the
said lever operates a horizontally movable stop bar for a purpose hereinafter
described. When the cam acts upon the vertical yoke to raise it the projection
acts upon the upper arm of the frame and raises the latter so as to move the stop
bar towards the right and at the next operation of the said cam when it moves the
vertical yoke downwards the said projection acts upon the lower arm of the frame
and moves it down so as to move the stop bar towards the left;
In the same vertical plane as the two projections on the side of the cam is a bar
"which carries at its upper end a socket or hollow head through which the clutch
sleeve lever projects and when the said bar is moved vertically in its guides by
the projections on the side of the cam the socket or head is raised above the end
of the clutch sleeve lever so as to throw upwards or off anything bearing thereon.
Upon the carriage is pivotted a pawl or trip.bar and when the said carriage
moves inwards towards the fabric frame the free end of the said pawl or trip bar
is adapted to engage with the top of the clutch sleeve lever and so shifts the clutch
sleeve as to carry one of the clutch pieces into engagement with the rotary clutch
rotate the clutch sleeve and its cam.
and
A trip bar pivotted to the right hand needle carriage may be used or a sliding
trip bar which latter is so placed that the carriage will strike it in terminating its
movement towards the fabric frame and will thereby push it against the clutch
sleeve lever and move the said lever so as to shift the clutch sleeve and carry one
of the clutch pieces into engagement with the rotary clutch piece and so rotate the
sleeve and its cam.
The sliding trip bar is held or supported at one end by a stud or pin which
passes through a slot therein, and at the other end it rests in a forked support sò
that in addition to its sliding movement, its end which is adjacent to the clutch-
sleeve lever may be raised and the bar swung upward on the aforesaid stud or pin
as a pivot. The trip bar first described has no independent sliding movement,
but moves with the carriage.
As before described each carriage has attached to it a spring box and as each
carriage is about terminating its inward movement. an arm on the spring box
comes in contact with a stationary projection or stop arranged upon the frame of
the machine and thereby rotates the spring box and winds up or compresses the
coiled spring therein.
In each carriage are journalled an upper and lower rock shaft adjacent to the
upper and lower rows of needle clamps and each rock shaft has connected with it
by curved arms a bar which extends parallel with and the entire length of the
row of needles. These bars act upon the threads and deflect the threads

page_text: downwards thus putting and keeping a suitable tension upon them and the said
bars may therefore be aptly termed "tension-bars." When either tension bar
rises by the increased pull upon the threads which it controls it rotates its rock
shaft and the two shafts are provided with arms which are connected by a rod
wherefore any rising or falling movement of either tension-bar will effect the
turning of the lower rock shaft.
The tension bars may consist of small rods or of wooden bars.
To regulate the tension, either of the arms of the rock shafts is provided with an
adjustable weight. These weights serve to more or less. counterbalance the
weight of the tension bars and by shifting the weights outwards or inwards the
tension produced by the bar may be diminished or increased.
Turning now to the mechanism previously described for retaining the levers
while the carriages are moving outwards it should be remarked that the end of
the lever which holds the latch or bolt is bifurcated and straddles the lower rock
shaft of the tension mechanism and the said lever is bent so as to form a shoulder
inwards of its end with which a hook engages.
Adjacent to the said lever and hook is a rotary catch fixed upon the lower
rock shaft and when the said rock shaft is moved in one direction the said
catch rises under the hook and pushes the book up out of engagement with
the said lever and holds the said lever upon its point. As soon however as
the rock shaft rotates in the reverse direction it carries the rotary catch away
from in front of the lever and allows the latter to spring forward under the
impulse of the withdrawing spring thereby withdrawing the latch or bolt from
in front of the clutch lever and allowing the spring box to draw forward the
last named lever to free the clutch piece from one bevel wheel and carry it into
engagement with the other bevel wheel and so reverse the driving mechanism of
the carriage.
When the lower rock shaft carries the rotary catch away from the front of the
catch lever the hook would naturally follow the catch, but the said catch does not
hold the lever quite so far inwards as does the hook and consequently when the
rotary catch raises the hook out of engagement with the lever it allows the with-
drawing spring to move the lever slightly outward and beyond the reach of the
shoulder of the hook, so that when the rotary catch releases the lever the hook
cannot catch it and it flies outwards under the impulse of the spring.
As the function of the hook and rotary catch are not in the least affected by the
rising of the tension bars at the end of the inward movement of the carriage
the mechanism for thus raising the tension bar may be the same as that always
used in machines of this class for that purpose.
In order to arrest the motion of the clutch sleeve and prevent the momentum
from carrying it ahead after it is released from the rotary clutches or clutch
pieces a suitable stop mechanism is employed.
The devices through which the movement of the tension bars operates to reverse
the driving mechanism of the carriages may be varied as may be desired to suit
circumstances.
An important feature of this machine is the arrangement of both the driving
mechanism and the reversing gear upon the carriages. By this arrangement the
result is accomplished with the least possible number of parts the point where
the driving mechanism is reversed is brought close to the carriage so that the
instant the driving mechanism is reversed the direction of movement of the
carriage will change.
It will be seen that the invention comprises the combination with a stationary
rack or equivalent device and movable needle carriages of driving mechanism
engaging with the said rack clutches for reversing the driving mechanism, latches
for holding the clutches in one operative position, and springs or weights for
shifting the clutches to reverse the driving mechanism all arranged upon and
movable with the needle carriages.
It also comprises the employment of fixed stops for retracting the said springs or

page_text: weights and for moving the clutches into engagement with their latches at the
termination of the inward movement of the carriages.
It also includes the combination with the foregoing parts of tension bars serving
to release the reversing gear and of intermittently rotating cams, adapted to
operate simultaneously and to be connected with their driving mechanism by the
inward movement of either carriage, devices through which one of the said cams
acts to connect either carriage with its driving mechanism for moving it inwards
and devices through which the other cam acts to disconnect both cams from their
operating mechanism.
It also includes the combination with the stationary rack, movable needle
carriages, driving mechanism and reversing clutches arranged upon and movable
with the said carriage of an intermittently rotating cam adapted to be connected
with its operating mechanism by either carriage in its inward movement and
devices by which the said cam acts upon either clutch for reversing the driving
mechanism of either carriage to move it outwards.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Arthur William Lovell Reddie in the Great Seal Patent Office on
the 6th November 1883.
ARTHUR WILLIAM LOVELL REDDIE of 66 Chancery Lane in the County of
Middlesex Patent Agent "IMPROVEMENTS IN EMBROIDERY MACHINES" a Com-
munication to me from Abroad by Julius Jonson of the City and State of New
York United States of America
This Invention relates to what are commonly known as the "Heilmann" or
"Swiss" embroidery machines in which the fabric to be embroidered is stretched
between beams or rollers in a balanced frame which is moved by means of a
pantagraph or other suitable pattern mechanism to produce the desired pattern,
and the work is performed by double pointed needles having eyes at about the
middle of their length and which are passed through the fabric from side to side
and each of which carries a length of thread one end of each thread being attached
to the cloth and the other end to the eye of the needle.-In machines of this class
there are commonly employed two distinct sets of needles arranged in two
horizontal rows and operated by means of two needle carriages arranged on opposite
sides of the fabric frame and movable towards and from the fabric or having an
outward and inward traverse to insert the needles alternately from each side of the
fabric and to draw them and the threads carried by them through the fabric, the
clamps which hold the needles being operated by properly timed mechanism, so
that after the clamps of one carriage have grasped the ends of the needles which
have been inserted through the cloth the clamps of the other carriage will be opened
to release the needles
As the work progresses the extent of movement of the carriages diminishes
owing to the shortening of the threads, and consequently the mechanism for
operating or driving the needle carriages must be reversed a little sooner, or after
a shorter outward traverse or movement in each succeeding stitch-producing
operation,. It is also essential that the traverse or, movement of the carriages
should be reversed at the instant or just before the threads are drawn taught so that
the embroidery will be of a uniform character and neither too loose or too tight
Several plans have been devised for reversing the movement of the carriages
automatically at the end of their outward traverse, and there have been employed
for this purpose tension bars or rods which are raised by the threads as they are
drawn taught-In some cases the tension bars or rods have been connected by
suitable mechanism with belt shippers or clutches so as to operate them directly to
reverse the movement of the carriages, and in other cases there has been employed
a reversing gear arranged upon the fixed portion of the machine at a distance from
the carriages and adapted to operate automatically on the removal of a latch or stop
to reverse the driving mechanism of the carriages, and the said latch or stop being
so connected with a tension bar or rod that it will be withdrawn by the rising
movement of said bar or rod
The machines of the kind first above mentioned are objectionable because of the
force or power which must be exerted by the threads to move the tension bar or
rod, and also because the movement of the belt shippers or clutches in shifting is
gradual and exactly proportionate to the rising movement of the tension bar or
rod, and it is therefore difficult to produce by such means the complete reversal of
the belt shippers or clutches.
The machines of the kind last above mentioned are objectionable because the
reversing gear is arranged at such a distance from the carriages, and so many parts

page_text: are employed for transmitting motion to the carriages from the point where it is
reversed, that there is an appreciable interval between the reversal of the driving
mechanism and the reversal of the carriages and the latter are therefore liable to
move too far and to draw the threads too tightly.
The principal object of this Invention is to enable the reversing of the movement
of the carriages to be performed with greater certainty and at the instant when it
is desired; and thereby to obviate the defects which have been inherent in machines
in which the reversing is effected by means of tension bars or rods, but in some
cases it may be desirable to effect the reversing of the carriage driving mechanism
by other means than the tension bars and in such case any suitable tripping
mechanism, like that employed in "planers" for example, may according to this
Invention be employed.
The Invention therefore consists in the combination in an embroidery machine
containing a fabric frame and needle carriages having an outward and inward
traverse, or movement from and towards the said frame, for the purpose of inserting
the needles into the fabric alternately from opposite sides and of drawing them and
the thread carried thereby through the fabric, of driving mechanism arranged upon
said carriages for imparting motion to them, and reversing gear also arranged upon
said carriages for automatically reversing the said driving mechanism to terminate
the outward movement of the carriages and move them inward.
Generally a tension bar will be connected with the reversing gear for releasing
it by the upward movement produced by the increasing tension on the threads as
they are tightened.
:
The Invention also consists in the combination with a stationary rack or
equivalent device, of driving mechanism engaging therewith, clutches for reversing
the driving mechanism, latches for holding the clutches in one operative position
to adapt the driving mechanism for moving the carriages in one direction, and
springs, or their equivalent weights, for moving the clutches when released to
reverse the driving mechanism and adapt it for moving the carriages in the opposite
direction. When tension bars are connected with the above mentioned latches
each tension bar serves, when raised upwards by the tightening threads, to withdraw
the latch with which it is connected and the clutch is instantly thrown over by the
spring or weight and so reverses the driving mechanism, and the direction of
movement of the carriage,. So quickly is this reversing accomplished that the
thread or fabric is not unduly strained and the carriage may even commence its
return or inward movement without having completely straightened the threads
though the latter will always have a sufficient tension produced on them by the
tension bars.
With the above springs or weights and clutches there are combined stops
which serve to retract the springs or weights and to move the clutches into
engagement with their latches at the termination of the inward movement of the
carriages.
The Invention also consists in other novel details of construction and combinations
of parts employed in the driving mechanism and reversing gear which are herein-'
after described and setforth in the Claims.
The Invention also consists in the combination in a machine containing the
fabric frame and movable needle carriages, of two intermittently rotating cams
adapted to operate simultaneously and to be connected with their operating
mechanism by the inward movement of either carriage, devices through which one
of said cams acts to connect either carriage with its driving mechanism for moving
it outwards, and devices through which the other cam acts to disconnect both cams
from their operating mechanism. Both of the aforesaid cams may be upon an
intermittently rotating sleeve and there is combined therewith a stop and devices
adapted to be acted upon by either carriage in its inward movement for connecting.
said sleeve with its operating mechanism and withdrawing the stop.
The cam above described as serving to connect either carriage with its driving
mechanism or to reverse the said mechanism for moving the carriage outwards,

page_text: performs its functions by acting upon the clutch or a lever connected therewith,
and thus reverses the driving mechanism.
In the accompanying Drawing there is represented an embroidery machine
embodying the Invention, but only such parts of the machine are shewn as are
necessary to illustrate the Invention.
Fig: 1 is a side view of the machine, Fig: 2 is an end view thereof, Fig: 3 is a
plan thereof the fabric frame being omitted; Fig: 4 is a longitudinal section
between the sides of the machine. Fig: 5 is a side view partly in section of one
portion of the frame of the machine, one of the needle carriages and its driving
mechanism, upon a larger scale, Fig: 5ª is a view similar to Fig: 5 of certain
parts shewn therein upon a still larger scale, Fig: 5b is a sectional view of a
spring box and spring which are carried upon the needle carriage taken in a plane
parallel with the axis of the spring box. Fig: 5° is a sectional view of the spring
box and spring in a plane transverse to the axis, Fig: 6 is a side view at right
angles to Fig. 5 and on the same scale of the parts shewn therein, Fig: 6ª is a
view similar to Fig: 6 of certain of the parts shewn therein hut on a larger scale,
Fig 7 is a horizontal section of a portion of a needle carriage and its driving
mechanism upon the same scale as Figures 5. and 6. Fig: 8 is a plan of a portion.
of the needle carriage with part of its reversing devices and appurtenances upon
the same scale as the preceding Figures, Fig: 8 is a plan of certain of the parts
shewn in Fig: 8 representing them in a different position, Fig: 8b is a side view
of a lever shewn in Fig: 8, and devices for operating it, Fig: 8° is a view of the
parts shewn in Fig: 8, but on a larger scale. Fig: 9 is a side view of the central
portion of the machine illustrating upon a larger scale the mechanism for reversing
the carriage driving mechanism at the end of the inward movement of the
carriages. Fig: 10 is a vertical section upon the dotted line x x Fig: 9; Fig: 11
represents a side view similar to Fig: 9 but omitting many of the parts shewn in
the latter Figure. Fig: 12 represents a plan of certain of the parts shewn in
Fig 11, Fig: 13 represents a vertical section on the dotted line y y Fig: 11.
Fig 14 represents a side view of certain of the parts shewn in Fig: 11 illustrating
more clearly their mode of operation, Fig: 15 represents a transverse vertical
section on the dotted lines z. z. Fig: 11. Fig: 16 represents a similar section of
certain parts on the dotted line 1. 1 Fig: 11. Figures 17. 18. and 19 represent
views similar to Figures 5. 6. and 7. illustrating a slight modification of the
Invention, and Fig: 20 represents a detail view of one of the parts employed in
such modification upon a larger scale.
Similar letters of reference designate corresponding parts in all the Figures.
A designates the main frame of the machine which is suitably constructed to
support the operating mechanism and to give all the desired strength, and B
designates the fabric frame which extends from side to side of the machine and is
provided with. beams or rollers a on which the fabric is carried and by which
it is stretched. The fabric frame B may have motion imparted to it in a vertical
and horizontal direction for producing the desired pattern by a pantagraph,
Jacquard mechanism, or other suitable devices such as are commonly used for
this class of machines, but such mechanism is not represented as it is believed to
be well known and as it forms no part of this Invention.
C designates the needle carriages which are arranged on opposite sides of the
fabric frame B and which are or may be constructed like those used in the
"Heilmann
or "Swiss" machines before referred to.
"
The needle carriages C. are provided each with upper and lower rows of needle
clamps which are made and attached to the carriages in the usual way, and
which may be-opened to receive and deliver the needles by means of rock shafts b¹,
provided with excentric portions or cams which bear on the tails of the movable
jaws of the pincer-like needle clamps-All the clamps of each carriage may be
opened by a vertically movable rod 62 connected with the rock shaft b' of each
carriage as best shewn in Fig: 4-This mechanism for operating the needle clamps
is the same as has been before used.
'

page_text: Each Carriage C is composed of two end frames or castings between which
extends a hollow brace C' through which extends a counter shaft C. At each end
of the carriage are supporting wheels or rollers c which run upon ways provided
for them on the frame of the machine, and the carriage is moved along said ways
by a system of spur wheels C³ which is set in operation by the counter shaft C³
and one wheel of which engages with a stationary rack c¹ on the frame as best
shewn in Fig: 6. This Invention is not restricted to a toothed rack, for a
V-shaped rack or bar, with which the V-shaped wheels engage by their friction
may be employed as an equivalent; or instead of the toothed wheels gearing with
the racks, there may be upon the counter shaft C a pulley round which would
pass a belt both ends of which were secured at fixed points at or near the ends of
the track.
On one end of the counter shaft C. is a bevel wheel C., and each wheel engages
with a pair of bevel wheels C³. Co. which are supported in brackets c². on the
carriages The system of wheels C³. with the wheels C. C. C. constitutes a train
of driving mechanism on and for each carriage. D. designates a driving shaft
arranged in suitable bearings upon the side of the machine as shewn in Figure 1.
and which may be rotated continuously in one direction by a belt passing around
a pulley D'. or in any other suitable way.
The pairs of wheels C. C. are entirely loose upon the driving shaft D. and
between the wheels of each pair is a clutch piece c. which is locked to the shaft D.
so as to turn therewith by a spline or feather and which may move freely
longitudinally thereon.
Each clutch piece c³. is operated by a lever D2. which extends downwards and
may be slightly resilient or elastic as shewn in Figures 1. 5 and 9, so that when
it is deflected its resilience will hold the frictional surfaces of the clutch piece c³. in
engagement with the frictional surface of the wheels C. C. to which it is desired
to transmit motion.-Consequently it will be seen that by moving the lever D².
in one direction or the other, one or the other of the wheels C5. Co. will be locked
to the driving shaft D, and will impart motion to the counter shaft C. in a proper
direction to move the carriage towards or from the fabric frame B
The manner of adjusting the carriage driving mechanism for moving the
carriages away from the fabric frame A. will now be described. To give such
movement to the carriage the lever D2. must be adjusted to hold the clutch
piece c. in engagement with the wheel C., as shewn in Figures 5 and 7, and the
lever is held in such position by a sliding latch or bolt c. projecting horizontally
from the side of the carriage as best shewn in Figures 5 and 8ª.
When the lever D³. is moved in a direction to engage with the latch or bolt et. it
acts upon the inclined end thereof and pushes it inwards but after the lever passes
the latch or bolt the latter springs outward in front of the lever under the impulse
of a light spring c³. applied as shewn in Figure 8-To the rear or inner end of the
latch or bolt c. is connected a pivoted lever ce and to the opposite end of the said
lever is applied a spring c² as shewn in Figures 8 and 8. so that when the lever is
not held by a pivoted hook c. as shewn in Figure 8. the spring c. will vibrate
the lever to pull back the latch or bolt c. and release the lever D³.
Upon each carriage C. is attached a rotary spring box d. shewn most clearly in
Figures 5 and 6, in which is arranged a coiled spring in a well known manner and
as best shewn in Figures 5b. 5º.,
The box d. is adapted to turn on a stud or pin d. fixed in the side of the
carriage and -the coiled spring d. within the box is attached at one end to said
stud or pin, and at the other end to said box, so that it has a constant tendency to
turn the box in the direction of the arrow Figures 5 and 5º. The spring box is
connected with the lever D. by a strap chain or other connection d'. so that when:
the latch or bolt c. is withdrawn to release the lever D. the latter will be pulled
quickly over by the rotation of the spring box d. to carry the clutch piece c³. out
of engagement with the wheel Co., and into engagement with the wheel Co. to
move the carriage inwards towards the fabric frame B.

page_text: The spring box. d with its connections and with the clutch c³. and lever D³.
constitutes a reversing gear for reversing the driving mechanism.
A weight night be used instead of the spring but the weight is considered as
the equivalent of the spring.
E. designates an auxiliary shaft arranged parallel with and below the driving
shaft D, and deriving motion therefrom through gear wheels E¹. E as shewn most
clearly in Figure 1.-Upon the shaft E. are secured two clutch pieces e. which
rotate therewith, and between them is arranged a sleeve e¹. carrying two clutch
pieces e. and movable upon said shaft-The sleeve e'. is adapted to be moved
longitudinally by means of a lever es: and when it is adjusted into its intermediate
position the clutches e. will be freed from the clutches e. and the sleeve e¹. will
remain stationary while the shaft E. continues its rotation.
Referring now more particularly to Figures 9 and 10 and also to Figures 11.
to 16 inclusive, e. designates a cam on the sleeve e¹. the form of which is shewn in
Figure 10, and this cam when rotated imparts motion to a vertical movable yoke F.
which is connected to an arm F¹: fixed upon a rock shaft F. as shewn most clearly
in Figures 9 and 10.-Upon the rock shaft F. within the frame A. of the machine
is a rocking yoke Fs. shewn best in Figure 4, and provided on opposite sides with
jaws or recesses f. As the carriages C. approach the end of their inward. movement
the jaws freceive rollers or pins f. upon the vertically movable rods b³. before
described and which are connected with mechanism for opening the needle clamps b.,
and as the rock shaft F. is oscillated the rocking yoke f³ moves the bar b³. of one
carriage up, to open the needle clamps and moves the bar 62. of the other carriage
downwards to allow the clamps of the last said carriage to close upon the needles.
The sleeve e¹. with the attached cam e¹. is designed to rotate intermittently as
hereinafter described and at each operation the cam is rotated half a turn before
stopping.
The form of the cam e¹. is shewn clearly in Figure 10 and in said Figure it is
shewn in the position which it will occupy after completing one-half its move-
ment During the first portion of its movement the cam does not impart any
motion to the yoke F, but afterwards it raises or lowers the yoke and holds it in a
raised or lowered position as shewn in Figure 10 at the close of its movement.
Upon the sleeve e¹., on one side of the cam e, are two projections f³. placed
diametrically opposite each other and one of which is shewn in Figure 1; and on
the sleeve adjacent to said cam is a projection g. of a form shewn clearly in
Figure 10.
G. designates a vertically moveable yoke or frame arranged in guides e*. in the
same plane as the projection or cam g, and provided with two arms g¹. g². between
which said projection or cam works. The yoke or frame G. is connected with a
bell crank or elbow lever G¹ as shewn clearly in Figure 9, and through said lever
operates a horizontally movable stop bar H, as shewn in Figure 9. for a purpose
hereinafter described. When the cam e. acts upon the yoke F., to raise it as
shewn in Figure 10; the projection or cam g. acts upon the upper arm g¹. of the
frame or yoke G, and raises the latter so as to move the stop bar H. towards the
right, and at the next operation of said cam e.. when it moves the yoke F down-
wards, the said projection or cam g. acts upon the lower arm g². of the frame or
yoke G., and moves it down so as to move the stop bar.H towards the left.
In the same vertical plane as the projections or cains f2, is a bar G³. which
carries at its upper end a socket or hollow head f³. through which the lever es.
projects as shewn most clearly in Figure 9, and when said bar G³. is moved
vertically in its guides f. by the projections or cams f2., the socket or head f³ is
raised above the end of the lever ea, so as to throw upwards, or off, anything
bearing on said lever.
"
Upon the left hand carriage C. shewn in Figure 9 is pivoted a pawl or trip
bar.h. and when said carriage moves inwards towards the fabric frame B. the free
end of said pawl or trip bar is adapted to engage with the top of the lever e³.

page_text: and so shifts the sleeve e¹. as to carry the left hand clutch piece e². into engagement
with the left hand rotary clutch e. and so rotate the sleeve and the cam e.
In Figure 1 there is shewn a trip bar similar to the bar h. pivoted to the right
hand needle carriage, and there may be used either this or a sliding trip bar h'.
shewn in Figure 9, which is so placed that the right hand carriage C. will strike
it in terminating its movement towards the fabric frame B. and will thereby push
it against said lever e³., and move said lever so as to shift the sleeve e¹. and carry
the right hand clutch piece e³. into engagement with the right hand rotary clutch
piece e. and so rotate the sleeve and the cam e¹.
The sliding trip bar h¹. is held or supported at one end by a stud or pin which
passes through a slot therein and at the other end it rests in a forked support so
that in addition to its sliding movement, its end which is adjacent to the lever e³.
may be raised and the bar swung upward on the aforesaid stud or pin as a pivot-
The trip bar h. shewn in Figure 1. has no independent sliding movement but moves
with the carriage.
As before described each carriage C. has attached to it a spring box d. and as
each carriage is about terminating its inward movement an arm d². on the spring
box comes in contact with a stationary projection or stop d³. arranged upon the
frame of the machine as shewn in Figure 9 and thereby rotates the spring, box and.
winds up or compresses the coiled spring therein.
In each carriage C. are journalled the rock shafts i. i., adjacent to the upper
and lower rows of needle clamps b., as best shewn in Figures 5 and 6, and each
rock shaft has connected with it by curved arms i²., a bar I. which extends parallel
with and the entire length of the row of needles.-The bars I, act upon the
threads j. as shewn best in Figure 5, and deflect the threads downwards thus
putting and keeping a suitable tension upon them, and said bars may therefore, be
aptly termed "tension bars."-When either tension bar rises by the increased pull
upon the threads which it controls, it rotates its rock shaft i. or it, and the two
shafts are provided with arms . . which are connected by a rod it. wherefore any
rising or falling movement of either tension bar will effect the turning of the
lower rock shaft i¹.
In Figures 1. 4. 17 and 19 the tension bars I. are shewn as consisting of small
rods while in Figures 5. 5. 6. and 6°. they are represented as consisting of wooden
bars. Either form of tension bars may be used
Different degrees of tension are required for different sized threads and to
regulate the tension, either of the arms or 2. of the rock shafts i i¹. is provided
with an adjustable weight 6. This weight is shewn in Figure 5 as applied to the.
arm of the rock shaft i. The weight 6. serves to more or less counterbalance
the weight of the tension bars I. and by shifting the weight 1. outwards on the
arm . the tension produced. by the bar I will be diminished, while by shifting
said weight inwards the tension will be increased because a lesser proportion of
the weight of the bars I. will be counterbalanced by the weight iⓇ.
Turning now to the mechanism previously described for retaining the levers D².
while the carriages C. are moving outwards it will be observed that the end of the
lever c. which holds the latch or bolt c. is bifurcated and straddles the rock
shaft i, as shewn in Figures 8.. and 8.; and said lever co. is bent so as to form a
shoulder inwards of its end with which the hook c. engages.
Adjacent to the said lever c. and hook c8. is a rotary catch c. which is best
shewn in Figure 8b., and which is fixed upon the lower rock shaft ; and when
said rock shaft is moved in one direction, the said catch c. rises under the hook c³.
and pushes the hook up out of engagement with said lever co., and holds said lever
upon its point as seen in Figure 8b. As soon as the rock shaft i rotates in the
reverse direction it carries the rotary catch c away from in front of the lever cº.
and allows the latter to spring forward under the impulse of the spring c. thereby
withdrawing the latch or bolt c. from in front of the clutch lever D²., and allowing
the spring box d. to draw forward the last named lever to carry the clutch piece c³.

page_text: .
into engagement with the wheel Co. and so reverse the driving mechanism of the
carriage C.
When the rock shaft . carries the rotary catch c away from the front of the
lever c., the hook c8. would naturally follow the catch but the said catch does not
hold the lever c. quite so far inwards as does the hook c. and consequently when
the rotary catch raises the hook out of engagement with the lever, it allows the
spring c. to move the lever slightly outward and beyond the reach of the shoulder
of the hook, so that when the rotary catch releases the lever the hook cannot
catch it and it flies outwards under the impulse of the spring c.
Referring now to the operation of the machine it will be understood that in this
machine as in other machines of the same class, the needles are all carried forward
and thrust through the fabric by the forward movement of one carriage, after
which the needle clamps of said carriage are opened, and the needle clamps of the
opposite carriage are closed on the needles, and they are drawn through the fabric
by the outward movement of said opposite carriage leaving the first mentioned
carriage stationary in its inward position. The second carriage now returns with
the needles, and thrusts them through the fabric into the open needle clamps of
the first mentioned carriage which are then closed on them, and the carriage moves
outwards.
It will be understood that during the inward movement of each carriage, the
lever D. is pulled over by the action of the spring box d. to hold, the clutch
piece c³, in engagement with the wheel C; and it will likewise be understood that
the latch or bolt ct is retracted by the action of its lever c which is pulled upon
by the spring c7 as shown in Figure 8.
?
Upon the frame A of the machine are secured stationary inclines k, shown in
Figures 5 and 8, and said inclines are directly in the path of the bent ends of the
levers Co. of the two carriages C.
When the carriage C (say the right hand carriage) shown in Fig: 1, has nearly
completed its inward movement, but before its. motion is slackened, it strikes the
end of the moveable trip-bar h¹, and pushes the same against the end of the
lever ca; or if the pivotted trip-bar, h. shewn in Figure 1 be used, the carriage
carries it against and causes it to push the lever. e³. The movement of the
lever e moves the sleeve e¹ and its right hand clutch into engagement with the
right hand rotary clutch e and sets the cams e, f2. and g in rotation.
In Figure 10 the cams e and g are represented in the position which they
occupy when they have completed one half of their movement
During the first part of the movement after being started the cam e¹. does not
move the yoke F³, and the needle clamps of the right hand carriage retain their
hold on the needles, and have carried them through the fabric.
The came then moves the yoke F downwards, and through the arm F¹ and
rock shaft F2 oscillates the rocking frame or yoke Fa which transmits its motion
through the vertical bars 62 releasing the needles from the clamps of the right hand
carriage and closing the clamps of the left hand carriage upon them.
Just before the termination of the inward movement of the right hand carriage
the tension bars I have been raised and swung over backwards to allow the
needle clamps b. to go close to the fabric, and turn the shaft . and the rotary
catch c³
During the whole inward movement of the carriage the lever co. is held in the
position shown in Fig: 8 and at this time, the rotary catch cº, and hook c³ are idle
and do not operate on said lever in any way. As the functions of the hook c³.
and rotary catch are not in least affected by the rising of the tension bars at
the end of the inward movement of the carriage, the mechanism for thus raising
the tension bar is not shown, but it may be the same as that always used in
machines of this class for that purpose
At the same time that the tension bars I have been swung backwards, the bent
end of the lever ce, has made contact with the incline k, in Figures 5 and 8, and

page_text: by said incline, has been moved inwards, thereby distending the spring c³, and
carrying the lever under the hook c which drops down over and retains it thereby
causing the bolt or latch c¹ to protrude
At the same time the movement of the carriage has brought the arm d². of the
spring box d against the stop d³, shewn in Figures 1 and 9, and has thereby
turned the spring box and slackened the chain d' which connects it with the
lever D², thereby releasing the lever, and breaking the frictional contact between
the clutch piece c³ and the wheel 06 and stopping the inward movement of the
carriage
During the movement of the cam e the projection g acts upon the arm g³.,.of
the yoke G, and moves it downwards thereby throwing the sliding-bar H to the
left, and by its striking the lever D2. of the left hand carriage, carrying said lever
back of the latch or dog c, where it is held, locking the clutch-piece of said
left hand carriage to the wheel C³., and causing said carriage to travel outwards,
after. which its driving mechanism is reversed, as hereinafter described with
reference to the right hand carriage
At the same time that the projection or cam g acts upon the yoke G, one of the
projections or cams, f2. moves the bar G³ upwards thereby raising its hollow head
or socket f³. and lifting or swinging the trip bar h¹ upwards on the stud which
passes through its slot, and out of engagement with the lever es, whereupon the
latter moves back, carrying the left hand clutch, e². away from the rotary clutch, e
and stopping the sleeve, e¹ with its cams e f². and g., The lever e³. is slightly
elastic and when acted upon by the trip bar, h'. is bent or put under tension.
When the head or socket f³. rises and releases the lever e³. it moves back by its
own resilience, or it may have a spring or springs applied to it to effect such
movement
The clutches, e, e². as shewn in Figures 1 and 2, differ some-what from those
shown in Figure 9, in that the former are toothed clutches, while the latter are
friction clutches,. This variation is made so as to indicate that either form of
clutch may be used, but it is necessary to remark that if the toothed clutches are
used, the lever e³. which shifts the sliding clutches or clutch-pieces, e². should have
springs applied to opposite sides thereof, so that when the trip h or h¹ is knocked
off by the raising of the socket or hollow-head f³, the lever e³ will be moved
instantly by one of the attached springs sufficiently to disengage the toothed
clutches. With the friction clutches such springs would be unnecessary, as all that
is required, is to release the lever e³ and thus break the frictional contact between
the clutches.
It has been before stated that the sleeve e' with its several cams e³, f2. and g.
is turned half a revolution at each operation, and in order to stop the sleeve after
such range of movement, and prevent the momentum from carrying it ahead,
after it is released from the rotary clutches or clutch pieces e, I may employ a
stop which will now be described, reference being had particularly to Figures
9, 11, 14, and 16.
Upon the periphery of one of the clutches or clutch pieces e³ are two lugs or
projections, shown most clearly in Figure 16, and designates a pivotted stop,
which is adapted to be raised and lowered into and out of engagement with said
lugs or projections The lugs or projections ¹ should be properly placed relatively
to the cams f. as shown in Figure 16.
Projecting upwards from the stop. is a rod which plays through a pro-
jection on the bar G as shewn in Figure 16, but which is adapted to be raised
by the projections & striking against a shoulder formed by nuts upon the said rod.
Upon the side of the rod . as shewn clearly in 'figure 14 is an inclined tooth or
projection 13, which is adapted to engage with a corresponding tooth or pro-
jection m'. on a stationary bar, m, which is flexible, or is hinged for a purpose
hereinafter described.
"
As before stated one of the projections or cams f³. at a proper time acts upon

page_text: the bar G³. and through it raises the hollow head or socket f³. sufficiently to throw
off the trip h or h¹. and thereby release the lever ea and disengage the sleeve e².
with its cams from the. driving shaft E At the same time that the bar G. rises, it
lifts the stop l, and just as the sleeve, e¹., and its cam are disengaged from the
clutches e the stop, is obtruded in the way of one of the projections or lugs k¹ and
thereby instantly stops the sleeve and cams.
As soon as the cams or projections f8. pass the bar G³. the latter falls into the
position shown in Figure 16. but the stop, l, cannot drop because of the tooth or
projection catching upon the corresponding tooth m¹., and hence the sleeve, e¹
with its cams., is effectually stopped at the proper time and prevented from running
ahead by reason of its momentum.
Before the sleeve e¹ can be again rotated, it is necessary that the bar m should
be bent or deflected sufficiently to carry its tooth, m' out from under the tooth 1³
.and thus permit the rod to move downward, and the stop 7 to drop out of
engagement with the lug or projection k.
.
I³. (see fig: 11) designates a bar adapted to be slid horizontally in either
direction in guides, m2., and having springs m³ attached to it for returning it after
moving in either direction.
· I¹ designates a lever, fulcrumed at, n, and one end of which is adapted to act
upon the bar m. To the bar I2. is pivotted a dog n¹. having an inclined projection
or tooth n² which is adapted to act upon the upper end of the lever I'.
The sliding bar I2. also has pivotted to it a dog n³. having an inclined projection
or tooth, n. which is placed so as to act upon the upper end of the bar m.
Just before the right hand carriage strikes against the trip bar h' shown in
Figure 9, so as to impel the latter against the bar c³ for moving the latter to start
the sleeve e and its cams, the said carriage strikes against the sliding bar 12. and
moves the latter towards the left; thereby causing the tooth n³ to vibrate the
lever I', and through it to deflect the bar m sufficiently to remove its tooth m¹
from below the tooth 3. This allows the rod to move downwards, and the stop
to drop out of engagement with the lug k and thus leaves the sleeve e¹. and its
cams free to rotate.
So also, just before the pivotted trip, h of the left hand carriage strikes against
the lever, 13., said carriage strikes the bar, I2 and moves the latter towards the
right, thereby causing the tooth n, of the dog n³ to deflect the bar, m, so as to
carry its tooth m', out from below the tooth 13., and thus permit the stop, l, to
drop out of engagement with the lug or projection k.
"
As soon as the needles have been again transferred from the left to the right
hand carriage, and the cams e. and g. have again operated, the bar H is thrown to
the right, striking the lever D. and moving it to carry it behind the latch or
bolt, c., and to move the clutch piece c³. into engagement with the 'wheel C³, where-
upon the right hand carriage moves outward.
As the right hand carriage recedes from the fabric-frame B, the tension bars I
are swung forward and rest upon the threads j. and thereby the lower rock-shaft i,
is turned, and the rotary catch co. is moved upwards against the under side of the
hook c, raising the latter out of engagement with the lever c. and remaining
stationary to hold the said lever during the whole outward movement of the right
right hand carriage.
As the carriage approaches the end of its movement outward, the threads j.
become more nearly straight by the tension upon them, thereby raising the tension
bars I, and before the threads are drawn straight, the said tension bars I, in their
rising, turn the rock-shaft i. sufficiently to carry the rotary catch c. away from
the lever c. and thereby release the latter, whereupon it is vibrated by the spring c³.
and the bolt or latch c. is drawn inwards or retracted.
The spring in the spring-box d. thereupon draws back the lever D, draws the
clutch into engagement with the wheel Co., and reverses the motion of the
carriage.

page_text: The movement of the left hand carriage is reversed in the way just described
with relation to the right hand carriage.
The devices through which the movement of the tension-bars operate to reverse
the driving mechanism of the carriages may be varied as may be desired to suit
circumstances.
.
Referring now to Figures 17. 18. 19 and 20, all parts which are lettered as in
Figures 5, 6 and 7, are exactly similar, the only difference being in the devices
through which the rotation or rocking of the lower rock-shaft i'. operates to with-
draw the latch c. and thus permit the reversing gear to move the lever D² and
reverse the driving mechanism.
The latch c. is caused to protrude in the way of the lever D2 by a spring o.
which forces it outward, and which is arranged as clearly shewn in Fig: 20.
Upon said latch is fixed a rotary cam of which may be rocked or turned by a
lever or arm o² and acts in conjunction with a fixed cam o³. when so turned to
withdraw or retract the latch c
I
J designates a rock-shaft having two arms p. pl. fixed upon it, and the former
of said arms is provided with a projecting pin or stud p². while the latter is con-
nected by a link p³. with the arm or lever o², of the rotary cam o¹. Upon the rock
shaft J, is a loose arm p. which rests against the pin or stud p³. and upon the rock
shaft is an arm p³. which is adapted to bear against a pin or stud projecting
from the loose arm pt. as best shewn in Fig: 18.
:
When the tension-bars I are raised by the tension of the threads j. the
rock-shaft . is turned, and the arm, po. acting upon the loose arm p*., presses the
latter against the pin or stud p². and through the arm p. turns the rock shaft J.
This turning movement of the rock-shaft J. is transmitted through the arm p¹.
and link or rod p³. to the rotary cam o', and turns said cam sufficiently to withdraw.
the latch c. and release the lever D².
As the tension bars I fall, the arm p³. on the rock-shaft ¹ carries the loose arm p¹.
away from the stud or pin p³. thus enabling the said arm p³. to pass the loose
arm p. without operating it to turn the rock shaft J.
In some exceptional cases, it may not be desirable to utilize the movement of .
the tension bar to reverse the movement of the carriage, because of the extreme
fineness or small number of threads and in such cases there may be employed a
reversing mechanism, substantially like that herein described, the rotary catch c³.
being removed from the rock shaft i, and a mechanism similar to that by which
the stroke of a metal planer is altered, being employed to trip the latch or bolt c'. to
release the lever D³, making such mechanism adjustable, while the machine is in
operation. In case of such a change, a device independent of the reversing
machanism would be employed to produce the proper tension on the threads.
One very important feature of the machine is the arrangement of both the
driving mechanism, and the reversing gear upon the carriages. By this arrange-
ment the result is accomplished with the least possible number of parts, the point
where the driving mechanism is reversed is brought close to the carriage, so that
the instant the driving mechanism is reversed the direction of movement of the
carriage will change..
"
"
Having now described this Invention for Improvements in Embroidery
Machines as communicated to me from Abroad, and having explained the
manner of carrying the same into effect. I claim :—
First: In an embroidery machine containing a fabric frame and needle carriages
having an outward and inward traverse or movement relatively to the said frame,
the combination of driving mechanism arranged upon said carriages for imparting
motion to them, and reversing gear also arranged upon said carriages, for. auto-
matically reversing the said driving mechanism to, terminate the outward traverse
of said carriages and move them inward, substantially as and for the purpose herein
described.
Second: In an embroidery machine containing a fabric. frame and needle

page_text: carriages having an outward and inward traverse or movement, the combination of
driving mechanism arranged upon said carriages for imparting motion to them,
reversing gear also arranged upon said carriages for automatically reversing the
driving mechanism, and a tension bar or rod, serving by its rising movement to
release the reversing gear, substantially as and for the purpose herein described. 5
Third: In an embroidery machine containing the fabric frame and the movable
needle carriages, the combination with a stationary rack or equivalent device, of
driving mechanism engaging with the said rack or device, clutches for reversing
the driving mechanism, latches for holding the clutches in one operative position,
and springs or their equivalents, for moving the clutches, when released, to reverse 1
the driving mechanism, all arranged upon the carriages and adapted to operate,
substantially as described.
Fourth In an embroidery machine containing the fabric frame, and the
moveable needle carriages, the combination with a stationary rack or equivalent
device, of driving mechanism engaging with said rack or device, clutches for 1
reversing the driving mechanism, latches for holding the clutches in one operative
position, and springs or weights for moving the clutches, when released, to reverse
the driving mechanism all arranged upon and moveable with said carriages, and
stops for retracting the springs or weights at the termination of the inward
movement of the carriages, all substantially as described.
Fifth In an embroidery machine the fabric frame B, needle carriages C,
gearing C³. wheels C. C., clutch c³., lever D2 latch c. lever c. spring-box d. and
rotary catch call combined and adapted to operate substantially as described.
Sixth-In an embroidery machine the fabric frame B, needle carriages C.
gearing C³, wheels C. C., clutch c³. lever D., latch c., lever c., spring-box d. rotary
catch c, and tension bar I connected with said catch c., all combined with said
catch and adapted to operate substantially as described.
Seventh: In an embroidery machine containing the fabric frame and the
moveable needle carriages, the combination with a stationary rack or equivalent
device, of driving mechanism engaging with said rack or device, clutches for
reversing the driving mechanism, latches for holding the clutches in one operative
position, and springs or weights for moving said clutches when released, all
arranged upon and moveable with said carriages, and fixed stops for retracting said
springs or weights, and for moving said clutches into engagement with their latches
at the termination of the inward movement of the carriages, all substantially as
described.
Eighth In an embroidery machine containing the fabric frame and the
movable needle carriages, the combination of two intermittently rotating cams
adapted to operate simultaneously, and to be connected with their driving
mechanism by the inward movement of either carriage, devices through which
one of said cams acts to connect either carriage with its driving mechanism for
moving it outwards, and devices through which the other can acts to disconnect
both cams from their operating mechanism, substantially as described.
Ninth In an embroidery machine, containing the fabric frame and moveable
needle carriages, the combination of the intermittently rotating sleeve comprising
cams e and f., a stop for arresting the movement of said sleeve, and devices
adapted to be acted upon by either carriage in its inward movement for connecting
said sleeve with its operating mechanism and for removing said stop, substantially
as herein described.
:
Tenth-In an embroidery machine containing the fabric frame and moveable
needle carriages, the combination with stationary racks or equivalent devices, of
driving mechanism and reversing clutches both arranged upon and movable with
the carriages, an intermittently rotating cam adapted to be connected with its
operating mechanism by either carriage in its inward movement, and devices
through which said cam acts upon either clutch for reversing the driving
mechanism of either carriage to move it outward, substantially as described.
{

page_text: Eleventh-The combination with the fabric frame B and carriages C of the
clutch lever e³. the intermittently rotating cam or cams f. the trips h. h'. adapted
to be operated by said carriages, to act upon said lever, and the bar G³, for
throwing said trips off said lever substantially as described.
In witness whereof I the said Arthur William Lovell Reddie have hereunto
set my hand and seal the first day of November in the year of our Lord One
thousand eight hundred and eighty three.
ARTHUR W. L. REDDIE (L.S.)