Improvements in Sewing Machines, and Apparatus for Stretching and Holding Carpets and other Heavy Fabrics to be Sewn."
Year: 1894

page_text: Date of Application, 29th Aug., 1894-Accepted, 26th Jan., 1895
COMPLETE SPECIFICATION,
[Communicated from abroad by THE SINGER MANUFACTURING COMPANY,
of New York, in the United States of America, Sewing Machine
Manufacturers.]
Improvements in Sewing Machines, and Apparatus for Stretching
and Holding Carpets and other Heavy Fabrics to be Sewn."
I, ALEXANDER ANDERSON, Manager of The Singer Manufacturing Company's
Works, Kilbowie, Dumbartonshire, do hereby declare the nature of this invention
and in what manner the same is to be performed, as communicated to me, to be
particularly described and ascertained in and by the following statement:-
My invention has for its object to provide a convenient apparatus for stretching,
holding and sewing long sections of carpets cr other heavy fabrics which are to be
held in such manner that their edges may be readily evened for the sewing operation
and so that patterns or figures of the carpets may be conveniently matched by the
operator as the sewing progresses, or so that the fabrics may be stretched, matched
and held preparatory to the sewing operation.
To this end my improved apparatus comprises a suitable support which sustains
stretching and holding devices or clamps for the fabrics and also a suitable track
or guideway on which a travelling sewing machine, by which the fabric edges are
to be united, is to move. The fabric holding devices are preferably so disposed
that the carpets or other fabrics to be united will be supported edgewise vertically
so that the different sections thereof may be inore easily moved relative to each
other, (to even their edges or match the patterns or figures) than would be possible
were the fabric sections superposed or laid flatwise horizontally on each other, as in
the latter position the weight of the fabrics and the frictional or clinging nature of
the contiguous faces of heavy pile fabrics renders the adjustment of one fabric
section on another almost impossible, particularly with cut pile fabrics.
The fabric holding and stretching devices or clamps are placed at suitable
intervals throughout the length of the guideway or track on which the travelling
machine is to run, and the said travelling machine is preferably driven by an
endless belt having a clutch or other suitable start and stop-motion connection with
the driving shaft of the machine. The travelling movement of the machine
relative to the stationarily held fabrics is preferably effected by a positive feeding
mechanism having a positive engagement with a rail or bar placed parallel to the
track or guide-way on which the sewing machine travels.
The clamps by which the fabrics to be united are held are preferably of such
construction that as the jaws thereof are closed together on the fabrics they will
stretch the said fabrics which are grasped between them, to place the fabrics under
suitable tension so as to hold their edges taut and smooth, said clamps being thus
stretching as well as holding clamps; and, movable with the said clamps, as the
latter are closed and opened, are start and stop-motion devices, or what may be
termed "governing devices" of such a character that should the travelling sewing
machine arrive at the end of a fabric section which has been matched, stretched
and clamped, in readiness for the sewing operation, before the next fabric section
has been made ready, the machine will be automatically stopped, but will be again
set into operation by and simultaneously with the act of closing the clamps of the
next fabric section; the start and stop-motion devices movable with the closing

page_text: and opening clamps co-operating with the start and stop-motion devices of the
machine to effect these operations.
The adjustment of the fabric edges in preparing for the sewing operation is
facilitated by stationary guides which determine their height as they are placed
in the clamps, and impaling pins carried by pivoted arms movable independently
of the clamping arms are provided to assist in the operation of handling the heavy
fabrics.
The stretching and holding clamps are normally movable independently of each
other in opening and closing, but connecting latches, whereby all the clamps of a
series may be opened by operating one clamp or clamp section, are provided; thus
enabling the finished work to be quickly released.
The travelling machine is preferably returned to its starting position by an
endless turn belt running in a direction opposite to the driving belt, and the
latter is preferably so arranged that both the forwardly moving and return
sections thereof will run in the same horizontal plane and thus both parts of said
belt may be utilized to drive sewing machines in opposite directions at the same
time, the tracks or guideways for the machine and the clamping and holding
devices for the fabrics, being to this end, provided in duplicate.
My invention has also for its object to provide a simple, compact and efficient
sewing machine adapted for uniting long sections of carpet or other heavy fabrics.
which are held stationary whilst the sewing machine is fed along relative thereto,
and having movements which are strong and positive so that the machine may be
run at high speed, as also to provide an improved mechanism for making a double
chain stitch seam, which can be used with advantage both in travelling machines
for sewing carpets and other long pieces of fabrics, and in sewing machines for
general use, having vertically reciprocating needle bars, presser feet and ordinary
feed mechanism.
My invention further relates to guides for carpet sewing machines; my improved
guide being more particularly intended for use with a machine of the class above
referred to travelling on a track or guideway parallel with which the carpets are
suspended vertically.
My improved guide is made in the form of a saddle or inverted trough having
depending outwardly flaring sides or flanges which converge toward the rear or
needle end of the guide, near which end they are slotted for the passage of the
needle and the threads which form the double loop stitch seam, the trough-shaped
or saddle guide having, centrally placed between its depending sides, a dividing
plate or divider, to hold the pile fabrics separated from each other, while below
and sustained by said divider is preferably provided a separator which holds the
suspended fabrics a little distance apart below the divider so as to have a tendency
to curve the fabrics to bring their edges together in such a position as will assist
in turning in the pile and partially abut the edges. For securing the best results
the forward end of the divider is rearward of the forward end of the saddle-shaped
guide and the rearward end of said divider is just in front of the needle slots in the
side flanges of the guide, while the rear end of the separator is some little di-tance
in front of the needle slots, and the forward end of said separator is preferably in
front of the forward end of the divider. Also a part or all of the guiding surface
at the apex of the saddle guide is preferably inclined downward rearwardly so that
as the guide travels forward over the carpet edges (which are held a little higher
than the guiding surfaces at the apex of the saddle guide) said edges will be
depressed to force in the pile; and owing to the fact that the rear end of the
separator is some little distance in front of the needle the portions of the fabrics
held apart by the said separator will be permitted to come together just before
being reached by the needle; while the pile, pressed inward by contact with the
divider, will be retained in its inwardly forced position until the edges have been
joined by the stitch-forming mechanism of the travelling machine.
My invention has further for its object to provide a travelling carpet sewing
machine with means whereby the cut pile of carpets such as Wilton, Axminster,

page_text: Moquette, &c. may be effectively pushed in from the edges to be joined in such a
manner that it will be out of the way of the seam and will be properly held and
controlled until the sewing has been completed. To secure this result recipro
cating "pilers" or pile deflectors have heretofore been employed, but not with
satisfactory results for the reason that as the pilers were lifted or withdrawn from
between the carpet edges (which are held. when sewing, with their pile faces
together) the pile would spring back or follow the pilers, this difficulty being
greatest with high class velvet and Wilton carpets having firm and stiff
heavy piles.
The difficulty referred to is overcome by my invention by providing a dividing
plate or divider against which the edges of the pile faces of the sections of
carpets to be joined are pressed, and by combining with said divider a double
piler, or two pilers, working on both sides of said divider, and transverse
to the carpet edges, so that as the pile is depressed or tucked in by the double
piler it is held in its depressed or intucked position, by contact with said divider,
and thus when the piler is withdrawn the pile will not spring back or follow the
retreating movements of the piler.
In the accompanying drawings
Fig. 1 is a partial side elevation of a carpet sewing apparatus embodying my
invention. Fig. 2, is a plan view of the same.
Figs. 3 and 4 are cross sections on lines 3-3 and 4-4, respectively, of Fig. 2.
Fig. 5 is a partial plan view, on an enlarged scale, of the apparatus shown near
the lower right hand corner of Fig. 2.
Figs. 6 and 7 are detail views of the clamping devices.
Fig. 8 is a detail view of the releasing or tripping device for the locking dog of
the return belt grip.
Figs. 9, 10, 11 and 12 are detail views to show the operation of the releasing
latches for the clamps.
Fig. 13 is a cross section, on an enlarged scale, on line 13-13, Fig. 2.
Fig. 14 is a full plan view of the travelling sewing machine.
Figs. 15, 16 and 17 are detail views of the clutch and starting and stopping
mechanisms of the said machine, and
Fig. 18 is a detail view of the return-belt gripping-device.
Figs. 19 and 20 are opposite side views, and Figs. 21 and 22 are opposite end
views of the sewing machine. Fig. 23 is a central cross section thereof.
Fig. 24 is a detail view to illustrate the spring catch for the guide.
Figs. 25, 26 and 27 are detail views to illustrate the mechanism for operating the
thread carrying looper.
Figs. 28, 29 and 30 are detail views to illustrate the mechanism for operating
the non-thread carrying looper, and
Fig. 31 is a detail view of the pull-off and take-up device.
Fig. 32 is a side view of my improved guide, and Figs. 33 and 34 are top and
front end views, respectively, of the same.
Fig. 35 is a side view with one of the side flanges cut away to show the line of
the guiding surface at the apex of the trough-like or saddle guide.
Figs. 36 and 37 are sections on lines 5-5 and 6-6, respectively, of Fig. 35, the
positions of the fabrics to be joined being denoted in Fig. 37, and Fig. 38 illustrates
a slight modification.
Fig. 39 is a front side view of a carpet sewing machine with my improved pile
controlling apparatus applied thereto. Fig. 40 is a similar view with some parts
omitted for clearness.
Fig. 41 is an end view of the piler and some other parts shown in Fig. 40.
Fig. 42 is a bottom or inside view of the guide in connection with which the
piler works, and
Fig. 43 is a detail sectional view of the piler, divider and guide.
In the form in which I have illustrated my improved carpet stretching, holding

page_text: and sewing apparatus at Figures 1 to 18 I provide standards A at the upper parts
of which are brackets a having upper and lower horizontally extending arms which
support rods and 1 which latter form the track or guideway for the travelling
sewing machine B, the latter having lower grooved wheels engaging the lower
rod b and upper grooved wheels 63 engaging the upper rod 6', the said wheels b³
being preferably pressed upward by suitable springs placed beneath them so as to
have yielding contact with said rod b'. C is a rack-bar the teeth of which are
engaged by suitable feeding devices of the travelling sewing machine to move
the same positively forward intermittingly.
Journalled in the outer ends of the upper arms of the brackets a are rods d to
which the clamping arms E are attached, said arms carrying at their lower ends
pivoted clamping and stretching levers e provided with jaws e co-operating with
similar pivoted, clamping and stretching levers e supported by blocks a¹ at the
lower ends of the arms of the said brackets a and furnished with jaws e³, the said
jaws being forced inward or towards each other by springs e' acting on said levers.
The movements of the levers e under the influence of their springs et are limited by
stop-pins or projections on the arms E engaged by tail pieces e on said levers e,
and the movements of the levers e under the stress of their springs e are limited
by stops or projections a' on the blocks a¹ co-operating with the tail pieces e' on
the said levers e².
In closing the clamps the jaws e¹ and e³ of the leverse and e² are first brought
into engagement with the opposite sides of the fabrics which are placed between
said jaws and the further downward or closing movements of the arms E will then
turn said levers e and e' on their pivots thus causing said jaws el and e³ to move
forward somewhat in the direction of the length of the fabrics thereby stretching
the latter and drawing them taut. This stretching operation of the clamping jaws
will be readily understood by reference to Fig. 7 in which the first grasping and
the final stretching and holding positions of the clamp jaws are denoted by full
and dotted lines, respectively. The arm e¹ furthest to the left (Figs. 1 and 2) has
a plain or non-stretching clamp-jaw co-operating with a similar plain clamp-jaw on
the fiame-work of the apparatus, as this first clamp merely holds the ends of the
fabrics, and is therefore of any ordinary or suitable construction.
are
The arms E are operated by hand levers f fulcrumed at f¹ to the upper arms
of the brackets a and connected to the short arms e of the arms or levers E by
links, the latter and the inner end portions of the levers forming toggles
which are straightened out just before the outer ends of the hand levers
depressed to their lowest positions to close the clamping and stretching jaws
together; the centre point of a toggle just passing a central longitudinal line
drawn through the toggle when said jaws are as fully closed as is desired and
when the further descent of the hand lever is arrested by a suitable stop; and as
the toggle centre is thus just past said central line when the jaws are in clamping
position any tendency of the said jaws to open is overcome and the said jaws are
locked, as will be understood.
The rods d are provided at their ends, opposite to where the arms E are attached,
with collars d' from which, on the sides of the rods d opposite to the arms E, are
extended arms d² provided with weights or counterpoises D sufficiently heavy to
overbalance the arins E and thus hold the jaws of the clamps apart and the clamps
open when not in use. The weights D are each provided with a depending lug or
projection d arranged to be in the path of a tripping arm on the machine, to stop
the latter, should the clamp arm E with which said weight and projection are
connected (through rod d) not be closed, and each collar d' is furnished with a
cam d' arranged to engage a starting and stopping lever on the machine as the
clamp with which said cam is connected is closed, and thus the travelling machine,
which has been stopped by a lug d³, will again be set into operation when the
material is ready. Thus the lugs d³ and cams d' co-operating with the stop-and-
start-motion devices (to be hereinafter described) of the travelling machine, are

page_text: what may be termed "governing devices as they control the movement of the
machine in such a manner as to cause it to stop when the material ahead is not
ready and to start when such material has been clamped and stretched in readiness
for sewing.
The collars are provided with lugs placed beneath the hand levers fand
thus serving to arrest the downward or clamping movements of said levers, the said
lugs being the stops for said levers hereinbefore mentioned.
Pivoted on the rods d are arms g carrying impaling pins g' which, when said
aims are in their lowered or closed positions enter holes formed in the lower arms
of brackets A similar in form to the brackets a and supported by strengthening
cross-heads H braced to the standards A by rods h² and serving to steady the track
or guideway rods band and the rack bar C all of which are attached to said
brackets. The rods d are provided with collars having notches d to be
entered by hooks or lugs i formed at the upper or inner ends of latches or hand
levers pivoted to the arms g and beneath which are placed springs to hold the
lugs or hooks in contact with the collars do or to force said lugs or hooks into
said notches 7 when said arms y are lifted to cause said lugs or hooks to register
with said notches. When said lugs or hooks are entered in said notches the arms g
will be held elevated with their impaling pins gl withdrawn from the work, even
when the clamps are closed, and said arms g will be further lifted to be wholly out
of the way when the clamps are opened.
i
Placed closely adjacent to each set of clamping and stretching jaws is a
stationary gage to be engaged by the upper edges of the fabrics and thus
determine the height to which the fabrics should be lifted before the clamps are
closed on the same. The gages are so placed as to be outside of the line of
movement of the travelling machine B, the fabrics, after being positioned as to
height by the said gages being moved inward to sewing position by the clamps as
the latter are closed. The gages are attached to the rod 61, the rods d passing
freely through the upper parts thereof.
k
The travelling sewing machine B is preferably driven by an endless belt L
receiving movement from any suitable source of power, as from a driving pulley K
which may be operated by an electric motor or otherwise, said belt running over
pulleys & supported at the opposite ends of the track or guideway on which the
machine runs. The driving belt L is preferably so arranged that both the
forwardly moving and return sections thereof will run in the same, horizontal plane
so that both parts of said belt may be utilized to drive sewing machines in opposite
directions at the same time, the tracks or guideways for said machines and the
stretching and holding devices for the fabrics being, to this end, provided in
duplicate, as shown in the drawings.
The endless driving belt L operates a pulley M which, in the present instance
has a suitable clutch connection with the main shaft m of the machine B, said
clutch connection, as herein shown, being as follows. To the shaft m is secured a
wheel m' surmounted by the pulleys M, and between said pulley and said wheel is
placed a shoe m² acted on by a cam n seated in said wheel and provided with an
arm n having a lug n against which presses a coil spring m³ to cause the cam n to
force said shoe m* into holding contact with the pulley M to give the latter a
driving engagement with the wheel m', and thus connect said pulley with the
shaft m to which said wheel is keyed. The shoe m² is retained in place by small
dowel pins on the wheel m' said pins being denoted by dotted lines in Fig. 17.
The endless driving belt L is held in contact with the pulley M by pulleys t
beneath which said belt runs.
Pivoted to the post B₁ forming part of the frame of the machine B is a stopping
and starting lever O having a depending arm o at the lower end of which is a
shoulder o' to engage the upper edge of the clutch arm n' and turn the cam n
slightly, in opposition to the action of the spring m³, when the shoe m' is to be
disengaged from the pulley M to permit the latter to run free; said arm n' having
at its end a hook or projection n³ to engage said arm o and thus positively stop the

page_text: wheel m' and the main shaft of the machine with which said wheel is connected.
The arm o is provided, below the shoulder o¹ with a brake o* having a friction
surface of raw hide or other suitable material, to engage the side or face of the
clutch arm n' to arrest or slacken the movement of the wheel m' after it has been
disengaged from the pulley M and before it is positively stopped by contact of the
hook n with the arm o; thus avoiding any injurious shock by the positive stop.
The lever is tilted, to bring the arm o into contact with the aim n', by a
spring seated in the post B' and pressing against the said arm o.
The lever O is provided with an arm rigidly attached thereto and having at
its end a projection o to be acted on by any one of the cams d' movable with the
clamps, the action of the cams d' on the arm of being to depress the end of the
lever to which said arm is attached and thus remove the arm o from contact with
the arm and thereby cause the clutch above described to engage the wheel m'
with the pulley M and set the machine in motion. To prevent accidental starting
of the machine when the latter is being run idly backward to commence a new
seam the lug or projection of is pivoted to the arm of and is yieldingly held in its
operative position by a spring o which will permit it to be turned to the position
shown in dotted lines in Fig. 17 should any of the clamps not be opened when the
machine is running backwards, the cams d being in position to be engaged by said
lug or projection o° only when the clamps, with which said cams are connected, are
closed.
The stopping and starting lever O is provided with a tail piece o' beneath which,
to hold the arm o of said lever out of engagement with the arm n' of the clutch
device, extends a lug p formed on a dog P pivoted on the shank of the screw pl, so
as to turn horizontally, and acted on by a torsional spring p' to hold said lug p
beneath the said tail piece o'. The dog P is provided with a tripping arm på so
placed as to engage any one of the stopping lugs d³ on the weights D should the
clamp, with which any one of said weights and lugs are connected, not be closed;
the engagement of a tripping arm p³ with a lug d³, when the machine is travelling
forward, causing the dog P to be turned to remove the lug p from beneath the tail
piece o of the lever O, thus leaving said lever free to be moved into position by
its spring o to uncouple the clutch and stop the machine. When the dog P is thus
tripped the tail piece o' of the lever O descends slightly so that the lug p, by
engagement with a vertical face of said tail-piece, is held aside in an inoperative
position. As the clamps will be open when the machine is to be run backwards to
its starting point, and as the lugs d³ will thus be in the path of the tripping arm p
the latter, although so connected with the locking dog P, so as to move the said
dog positively when tripping it to stop the machine, is yieldingly connected with
said dog by the spring so as to move idly to the position shown in dotted lines,
Fig. 16 when passing said lugs d³ on the backward or return movements of the
travelling machine.
L' is an endless returning belt running, in a direction opposite to the belt L,
over pulleys at the opposite ends of the track or guideway on which the
travelling machine moves. The said machine is provided with a gripping device
to engage the said returning belt so as to be moved therewith, said gripping device,
as herein shown, consisting of a grooved block or lug g between which and a
gripping lever Q said returning belt runs. A spring g' normally holds the gripping
part of the said lever lifted out of contact with the said belt, and when the machine
is to be returned the operator depresses the handle end g' of the said lever to cause
the latter to grip the said belt, said lever being held in gripping position by a
toothed locking dog R pivoted on a screw r and forced by a torsional spring r
into engagement with a toothed portion 9 of said lever Q. When the locking
dog R is released from the said lever Q the spring 9' releases said lever from the
returning belt.
To prevent the machine from overrunning its track or guideway at its return
movement I provide, near the starting point of the machine, a releasing device for
the locking dog R, said releasing device consisting of an arm r supported by

page_text: hanger and placed in the path of movement of said dog to trip the latter on the
return movement of the machine and thus automatically ungrip the return belt,
said arm being yieldingly held by a spring, in such a manner that it will be
swung out of the way, when engaged by said dog, on the forward movement of the
machine.
In practice my improved fabric stretching and holding apparatus and the track
or guideway for the travelling machine are of considerable length and comprise
quite a large number of the stretching and holding clamps which latter are some
three and a half feet (more or less) apart, anl when a long seam has been
completed it is desirable that all of the clamps holding the fabrics which have been
sewed may be released by operating a single han leverf by which the clamps are
closed and opened, and thus avoid the delay which would be occasioned were said
hand levers all to be separately operated to open the clamps. To thus open all of
the clamps by that one of the hand levers which is at the end of the seam last
completed I mount on the collars d', adjacent to the clamp arms E and han
levers, pivoted releasing latches the upper ends of which are pressed by
springs towards said levers and the latter are provided with inclines f
preferably formed at the bottom of notches f formed in said levers, the said
latches s being provided near their tops with shoulders. Thus when a clamp is
to be closed by depressing its operating hand lever fand the clamp which is next
ahead (or to the right, Fig. 1) is open, (as will always be the case in practice, as
the clamps are successively closed from one end of the fabric sections to be sewed
to the other) the latch s connected with the open clamp will be in such position
(see Figs. 9, 11 and 12) that the incline of the lever will permit said lever, as
the latter is lowered in closing its clamp, to pass by the shouldered portion of the
latch 5, but when the clamp with which said latch is connected is closed the latch
will be turned to the position shown in Fig. 10 to bring its shoulder beneath the
lever contiguous thereto and which is on the next clamping section, and thus
engage said latch with said lever so that when the clamp with which the latch is
connected is opened the turning movement of the collar d' on which the latch is
mounted (and which is connected with the clamp through the rod d) will lift the
said latch and cause the latter to raise the lever f, with which said latch is now
engaged, far enough to throw out the toggle, formed by the inner end of said lever
and the link f³, and thus permit the overbalancing weight D connected with the
clamp rod d to entirely open the clamp. As all of the clamps of a series will, when
closed, be connected together through the releasing latches it will be obvious that
by raising the operating hand lever of the clamp last closed, to open said clamp, the
latch connected with the clamp first released or opened will open the next clamp,
and so on successively through the entire series of clamps, running back to the first
stretching clamp near the starting point of the machine.
S
With regard to this releasing operation of the clamps it should be borne in mind
that the lever f, shown in Figs. 9 and 10, is on a different clamp rection from that
with which the releasing latch s, shown in said figures, is to be connected, and that
the operating lever with which said releasing latch s is connected is represented
by the operating lever furthest to the right at the lower side of Fig. 2, while
the operating lever f, shown in said Figures 9 and 10 is represented by the middle
one of the operating levers shown at the lower side of Fig. 2. In other words, it
should be borne in mind, for a clear understanding of the operation of the releasing
latches, that a releasing latch of one clamp section operates to throw up the
lever of the next adjoining clamp section, and so on through the entire series
of clamps.
As it is objectionable (except when a carpet has been entirely sewed by uniting
the last two breadths thereof) to permit the heavy fabrics to fall to the floor when
the clamps are all opened, as above indicated, owing to the labour which should be
required to again lift the heavy fabrics, the arms g are lowered to engage their
impaling pins g with the fabrics before the clamps are opened, said pins thus
holding the fabrics from falling.

page_text: The travelling sewing machine B has an intermittent feeding movement on
its track or guideway, this feeding movement being effected by suitable feeding
and holding devices engaging the teeth of the rack-bar, C and hereinafter
described.
In the use of my invention and with the endless driving belt I running in the
direction denoted by the arrows in Figs. 1 and 2, if the front track or guideway
shown at the lower side of Fig. 2 be in use, the travelling sewing machine will be
placed at the left hand end of the said track or guideway with the projection of on
the arm of of the starting and stopping lever O beneath the cam d furthest to the
left. The fabrics (the ends of which are held by the non-stretching first clamp
after the clamp arm E¹ has been lowered) are now adjusted to proper position and
the clanıp arm E furthest to the left is lowered, closing the first set of stretching
and holding clamps and drawing taut the fabrics extending from the end holding
clamp to the stretching clamp first closed. The operation of closing the first
stretching clamp, and which thus makes a fabric section ready for sewing, causes
the cam d* to act on the said projection 5 on the arm of of the starting and stopping
lever O, thus withdrawing the stopping arm o of said lever from the clutch arm n¹
and permitting the clutch to engage the wheel m¹ with the driving pulley M. and
thus start the machine, the said pulley, it being understood, running continuously
with the driving belt L. When the travelling machine arrives at the end of the
clamped and stretched fabrics if the next set of clamps be not closed the stopping
lug ds, connected with the open clamp, will be in the path of the tripping arm p³ of
the locking dog P, and the engagement of said arm with said stopping lug d³ will
cause the locking lug p of said dog to be withdrawn from beneath the tail-piece o
of the lever O, thus permitting the latter to be tilted by its spring o³ to uncouple
the clutch and stop the machine, the said machine being again set into operation by
a cam d³, when the next stretching clamp is closed, as above described.
Should all the clamps of a series be closed, or, in other words, should lengths of
carpet sections to be united be matched, stretched and clamped, before the machine
is started, of course the entire lengths will be sewed without stopping the machine;
and the sewing operation of carpet sections extending the full length of the holding
and stretching apparatus and of the track or guideway will also be continuous if
the clamps be successively closed, as the machine advances, before the machine
reaches the respective governing devices represented by the stopping lugs d³ and
starting cams d* which are placed opposite to each other, these governing devices,
it being understood, being for the purpose of preventing the machine from running
into unclamped and unprepared fabric sections; and also to provide for starting
the machine simultaneously with the operation of closing the clamps, without
requiring any special care on the part of the operator who has only to attend to
adjusting and clamping the fabrics.
The edges of the carpets are held above the clamps, and the arms E of the
latter are curved outward, and the travelling machine can thus move freely past
said arms and clamps without interference therewith, a suitable guide on the
travelling machine bringing the edges of the fabrics in proper position relative to
the needle of the machine and holding said edges during the sewing operation.
Referring to Figures 14 to 31 of the drawings, A₁ denotes a metal frame in
which is journalled the diving shaft m of the sewing machine B. The sewing
machine is provided with a driving pulley M to be run by an endless belt, said
pulley having, preferably, a clutch connection with said shaft. To the shaft m is
secured a cylinder 2 having a scroll cam-groove ³ entered by a pin or roller
stud c on a needle-carrying slide C¹ movable on guide-rods c¹ and having an arm or
lug to which the eye-pointed needle c³ is secured by a set screw or other suitable
device. The slide C is provided with a block c' having thread eyes e arranged to
pass on opposite sides of a stationary thread stop ce when the needle is withdrawn
from the work, and thus the said thread stop, in connection with said thread
eyes, from one to the other of which latter the thread runs on its way to the
needle, serves as a positive take-up for the needle thread to tighten the loops

page_text: of the latter when the needle is out of work, as will be hereinafter more fully
described.
To the shaft m is attached the double cam working in a horizontally movable
yoke do having a depending bar or arm do carrying an eyed or thread-carrying
looper d, said yoke having a slide bar working in a guideway formed in the
part a of the machine frame. The yoke is also provided with a horizontally
extending pull-off and take-up arin operating in conjunction with thread eyes
formed in the thread guide arm e, to control the looper thread running from the
tension device eo to the looper d".
The shaft m is provided with a second double cam f embraced by a vertically
movable yoke having a depending arm working in a suitable slideway in the
frame A and carrying at its lower end a block f having formed thereon or
attached thereto a non-thread-carrying looper or loop-holder f which takes the loops
of thread from the looper d" and holds them open for the passages therethrough of
the needle. The loopers d and are placed on opposite sides of the path of the
horizontally moving needle c, the looper " being reciprocated in a plane transverse
to the plane of movement of the needle, and the looper ft being reciprocated
in a plane transverse to the plane of movement of the thread-carrying looper d".
Although I have shown the loopers d" and 10 as reciprocating in right lines it
will be understood that they might be operated by pivoted carriers, in which
case they would reciprocate in curved paths, without essential changes in the
results effected.
The feeding movements of the machine are effected by a feed lever H' pivoted near
its upper end on the shank of a screw h³ received in a slot at the upper end of said
lever, and the shaft m is provided with an eccentric * fitting in an opening in the
central or yoke portion of said lever, the latter carrying at its lower end a tooth /*
to engage the teeth of the rack-bar C extending parallel to the track or guideway
on which the machine runs. The tooth is carried by a yoke he forming part of
the lever Hand pivoted to the body portion thereof so as to be adapted to be
swung sidewise by its handle to disengage the tooth from the said rack-bar
when it is desired to run the machine freely backwards or forwards on its track or
guideway. Any suitable friction device, a spring-pin 8, may be employed to hold
the handle in either position to which it may be moved. The pin is seated in
the body of the lever H' and is pressed outward against the handle h by a small
coil spring placed behind it in its seat.
Co-operating with the feed lever H' is a holding bar I having at its lower end a
tooth which engages the teeth of the rack-bar C, said bar I being slotted at its
upper end for the passage of the shank of the screw h³, and being provided with
flanges between which works a cam on the shaft m said cain serving to impart
vertical reciprocating movements to said bar and said movements being in
opposition to the vertical movements of the feed lever H' so that when the
tooth of the latter is in engagement with the rack-bar C, and the feeding
movement is occurring, the tooth is lifted clear of the said rack-bar, the said
tooth being in engagement with the rack-bar to hold the machine stationary,
when the tooth of the feed lever is lifted therefrom and the feed lever is
making its backward or return movement. When the machine is stopped the
holding bar will be lifted so that when the feeding too:h is swung aside, as
above described the machine will be free to be run backwards or forwards as may
be desired.
In the use of my invention the fabric sections to be united are held edgewise
vertically by clamps and the fabric edges and fabric piles are controlled and
brought into proper position for the sewing operation by a suitable guide, as S,
removably attached to the block a' on the machine frame, said block having a
dove-tailed groove in which a dove-tail block on the guide fits, and a spring catch
ass, serves to lock the guide in place see Fig. 24. Interchangeable guides and
pile controlling devices such as hereinafter described for different kinds of carpets
B

page_text: are provided, and it is therefore desirable that these guides and pile controlling
devices be readily removed and replaced.
In the sewing operation the action and timing of the parts is as follows: The
horizontally reciprocating needle first advances and carries a loop of its thread
through the fabrics to he joined, and as the needle retreats the horizontally
reciprocating eyed or thread-carrying looper d" advances and passes a loop of its
thread through the needle loop the looper-loop being then immediately seized by
the vertically reciprocating non-thread-carrying looper or loop-holder 10 and the
looper quickly retreats, dropping the needle loop which is tightened around the
looper-loop by the action of the retreating needle, this action being assisted, when
a tight stitch seam is desired, by the take-up consisting of the thread-eyes c³, moving
with the needle, and the stationary thread step c. At the time when the needle
is retreating and before the thread eyes co reach the thread-stop the needle
thread runs taut from one to the other of said thread eyes. While the needle i
out of work and is retreating and tightening its own loop with the assistance of
the take-up, just referred to, the feed lever H' is operated to move the machine
forward, the looper-loop, extending from the looper d around the looper flo and
thence to the work, being still held by the non-thread-carrying looper or loop-
holder which holds said looper-loop open for the passage therethrough of the
needle on the next forward movement of the latter; and when the needle has
thus entered the looper-loop the looper 10 moves downward and drops said loop
which is now fully tightened around the needle by the action of the take-up and
pull-off arm¹³ moving with the thread-carrying looper d as the said looper
again advances to pass its loop through the needle loop; said pull-off and take-up
arm, after having tightened the looper-loop, as just stated, drawing through the
tension device e10 enough thread for the formation of the next stitch, the slack
thread given up, as the pull-off and take-up arm moves backward with the
looper du, being taken up by the forward movement of the machine for the next stitch.
It will thus be seen that owing to the fact that the needle loops are quickly
dropped from the thread-carrying looper proper time is given for tightening said
needle loops while the needle is out of the work, and I am thereby enabled to use
a much shorter needle than can be employed in previous double chain stitch
mechanisms in which the needle loops are tightened around the thread carrying
loopers at the last part of the forward or downward movements of the needles, these
movements, for the purpose of tightening the needle loops, being about half an in-h
further forward or downward than would otherwise be required merely to form
loops for the passage of the loopers, and therefore necessitating the use of needles
about one half inch longer than would otherwise be necessary. Also in thus
tightening the needle loops by a backward or upward, instead of by a forward or
downward, pull on the needle thread the strain on the latter is very much less; as
in the backward or upward tightening movement the thread is drawn but once
through the fabrics, while in the forward or downward tightening movement the
thread is drawn twice through the fabrics, this difference being very considerable,
particularly with heavy fabrics like carpets. Furthermore with the backward or
upward tightening movement there is less strain on the needle and less reeving
of the thread through the eye of the needle, and consequently less chafing and
weakening of the needle thread; and by holding the looper-loops by the non-
thread-carry ing looper, rather than by the thread-carrying looper, when the feed
takes place, strain on the thread-carrying looper, which is the more delicate
instrument, is avoided.
I do not wish to be understood as limiting the use of my improved double
chain-stitch-forming mechanism to a travelling sewing machine, or one in which the
needle reciprocates horizontally, as it would operate as well in a machine in
which the work, instead of the machine, was fed along, or in a family or manu-
facturing machine or ordinary type having a vertically reciprocating needle-bai,
the short needle and the co-acting stitch-forming devices of my improved

page_text: machine, operating as described, rendering my invention particularly adapted for
high speed machines.
Referring to Figures 32 to 38 of the drawings A³ denotes the inverted trough-
shaped or saddle guide consisting of depending outwar lly flaring side flanges
meeting on a curve at their upper edges, said flanges converging somewhat towards
each other from their front ends to their rear ends . The guiding surface of
the fabric edges is at the apex of the trough and this guiding surface is preferably
made, as shown in Fig. 35, with a straight or horizontal portion and a
portion which inclines downward rearwardly, while just at the rear end of
the downwardly inclined part 1 of the guiding surface is formed a slight
downward jog or projection f". It is not, however, essential that a part of the
guiding surface at the apex of the trough-like or saddle guide should be horizontal,
as such guiding surface forward of the needle slots, might incline downward gently
all the way from the front end of the guide, as shown in Fig. 38.
Centrally secured to the under side of the saddle guide is a depending dividing
plate, or divider, g₁ the rear end of which terminates just in front of the needle
and thread slots formed in the side flanges of the guide, while below and
supported by said divider is a separator which is thicker than said divider and
which is preferably pear-shaped in cross-section, as shown by Figs. 31 and 37.
The forward end of the divider g' is some little distance rearward of the forward
end of the saddle guide and also preferably rearward of the forward end of the
separator. The side flanges of the guide A are preferably provided internally
with slight projections as adjacent to the slots 49, said projections assisting in
bringing the fabric sections together at the sewing point.
To the saddle guide A³ is soldered or otherwise secured a block a' by which said
guide is to be removably attached to the travelling sewing machine, the positions
of the vertically suspended fabrics over which the guide is to travel being denoted
by dotted lines in Fig. 35. As the upper edges of the fabrics, or the edges to be
joined, are held a little higher than the guide, the latter, in riding over said
edges forces them downward; while the separator, holding them apart, serves to
assist in curving the fabrics outward from each other, as shown in Fig. 37, thus
turning in the pile and bringing the extreme edges of the carpet sections together
partly abutted, the operation of turning in the pile being assisted by the
projection at the rear end of the inclined part e" of the guiding surface of the
guide.
Referring to Figures 39 to 43 of the drawings m denotes the main shaft of the
carpet sewing machine, and a double cam thereon working in a horizontally
movable yoke do from which depends a bar 10 carrying an eyed or thread-carrying
looper operating in conjunction with a needle working horizontally but at
right angles to the looper, said yoke having a slide bar d¹ working in a guideway a³.
On the shaft m is a second double cam 7 working in a vertically movable yoke f
from which depends a bar f working in a guide way a' and carrying at its lower
end a block having formed thereon or attached thereto the spreader f10, said
spreader, thread-carrying looper and needle co-operating to form the well-known
double chain stitch seam.
Supported in proper relation to the stitch-forming devices of the machine is a
saddle guide A of inverted trough-shape and having depending outwardly flaring
flanges or wings provided with slots 4° for the passage of the needle and threads.
Secured to the under surface of the saddle guide, midway between the depending
wings or flanges of the latter, is a divider 9' the rear end of which terminates just
in front of the slots ; and below and supported by said divider is preferably
placed a separator which is thicker than said divider so as to hold the fabrics
somewhat apart and prevent them from clinging together, and also to curve them
outward from each other thus partially abutting their extreme edges to cause the
seam to be as flat as possible when made, the rear end part of the separator being
flattened, as shown in Fig. 42, to permit the fabrics x (the pile faces of which are
inward) to come nearer together just before they are sewed.

page_text: Attached to the vertically reciprocating yoke is a bar m carrying at its lower
end the double piler n straddling or working on both sides of the divider g*, each
cuter face of the double piler being preferably inclined, as shown, so as to operate
as a wedge to force inward or downward the pile which is pressed against the said
divider, and the pile when thus forced downward or inward will be held in such
position and be prevented from springing back when the piler is withdrawn
owing to its pressure against said divider. Instead of a double piler made in a
single piece it will be understood that two separate pilers, to constitute the double
piler, might be employed, but I prefer the double piler made in a single split piece,
as shown.
In front of the double piler are the trough-like guides 08 which ride over the
fabric edges, which are so hung as to be somewhat higher than the inner or guiding
faces of said guides, so that as the fabric edges are depressed or forced downward
by the travelling guides the parts of the fabrics below their extreme edges are
curved outward somewhat by the separator so as partially to turn the pile in
and to assist in holding it in by contact with the divider when tucked in by the
piler, which latter reciprocates in a plane transverse to the carpet edges.
Thus by the use of a guide provided with a divider and a reciprocating piler
working transverse to the fabic edges, and on both sides of said divider, I am
enabled to depress the pile out of the way of the seam and to hold the same
depressed when tucked in, until the sewing operation has been completed, the
carpets, when sewed, showing clean seams at their backs and the pile at the seams
on the faces of the carpets being so disposed that the seams show as little as possible,
with no backward or forward inclination of the pile at the seams, as is the case
when travelling but non-reciprocating pile turning-in devices are employed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated to
me, I declare that what I claim is :-
1. The combination with a track or guideway and a travelling sewing machine
to run thereon and provided with a stop motion device, of clamps disposed along
said track or guideway and serving to hold the fabrics to be sewed by said machine,
and stopping devices movable with said clamps and so arranged as to be brought
into position to stop the machine when the clamps are open but to be in such
position as not to interfere with the machine when the clamps are closed.
2. The combination with a track or guideway and a travelling sewing machine to
run thereon and provided with start and stop-motion devices, of clamps for holding
the fabrics to be sewed by said machine, and starting and stopping or governing
devices movable with said clamps and co-operating with the start and stop motion
devices of the machine: whereby the latter will be set into operation when a clamp
is closed or will be stopped by a governing device if the clamp with which the
Intter is connected be open.
3. The combination with a track or guideway and a travelling sewing machine to
run thereon and provided with a pulley having a clutch connection with the driving
shaft of the machine, starting and stopping devices to operate said clutch and to
connect and disconnect said pulley and shaft, clamps to hold the fabrics to be sewed,
and starting and stopping or governing devices movable with said clamps and
serving, according to the closed or open positions of the clamps, to govern the action
of the starting, stopping and clutch mechanisms of the said machine.
4. The combination with a track or guideway and a travelling sewing machine
to run thereon, of an endless driving belt, means for operatively connecting said
belt with the driving shaft of the machine to set the latter into operation, an
independent endless returning belt for running the machine back to its starting
position, and a gripping device on the machine for engaging the latter with the said
returning belt.
5. The combination with a track or guideway and a travelling sewing machine
to run thereon, of an endless driving belt, means for operatively connecting said

page_text: belt with the driving shaft of the machine to set the latter into operation, an
independent endless returning belt for running the machine back to its starting
position, a gripping device on the machine for engaging the latter with the said
returning belt, and a releasing device, placed near the starting point of the machine,
for disengaging said gripping device from said returning belt.
6. The combination with a track or guideway and a travelling sewing machine
to run thereon, of a fabric-holding apparatus comprising means for holding one end
of the fabrics and one or more clamps each of which consists of two opposing spring-
pressed jaws, which, after having been brought into engagement with the opposite
sides of the fabrics, in closing, are constructed and arranged to have a horizontal
or forward movement to stretch the fabrics longitudinally, and means for closing
the clamps against the fabrics.
7. The combination with a track or guideway and a travelling sewing machine to
run thereon, of a series of independent, combined stretching and holding clamps
disposed along, said track or guideway and each clamp having opposing spring-
pressed jaws to engage the opposite sides of the fabrics to be united by said machine,
each of said independent claimps being adapted to be opened and closed without
disturbing the others.
8. The combination with a track or guideway and a travelling sewing machine to
run thereon, of a series of clamps arranged to hold the fabrics to be sewed parallel
with the said track or guideway, each of said clamps comprising a spring-pressed
clamp arm or lever pivoted to a stationary support and provided with a clamping
jaw, and a spring-pressed clamp arm or lever pivoted to a movable support or
carrying arm and also provided with a clamping jaw, the jaw portions of said clamps
being yieldingly pressed towards each other by their springs, so that when said jaws
are forced against the opposite sides of the fabrics, in clamping, they will have
horizontal or forward movements to stretch the fabrics longitudinally.
9. The combination with a track or guideway and a travelling sewing machine
adapted to run thereon, of a supporting bracket forming part of the stationary
framework of the said track or guideway, clamp-arms or jaws sustained by said
brackets, rods journalled in said brackets and provided with arms carrying clamp-
arms or jaws co-operating with the sa:d first-named clamp arms or jaws, operating
levers pivoted to said brackets, and links arranged in connection with said
operating levers to form toggles which straighten out as the clamp-jaws are closed
together.
10. The combination with a track or guideway and a travelling sewing machine
to run thereon, of a fabric-holding apparatus comprising a series of clamps disposed
along said track or guideway, said clamps being independent of each other, and
being thus adapted to be successively closed on the fabrics, arms or levers by means
of which said clamps may be opened, and releasing devices or latches by which said
arms or levers may be operated to open the clamps, when desired, said releasing
devices or latches serving, when the last clamp of the series of clamps is opened, to
successively open the preceding clamps of the series.
11. A fabric holding apparatus comprising a series of clamps, combined with
impaling pins for assisting in handling the fabrics, and pivoted arms, movable
independently of the clamps, by which said pins are carried.
12. A fabric holding apparatus comprising a series of clamps, combined with
impaling pins for assisting in handling the fabrics, pivoted arms, movable
independently of the clamps, by which said pins are carried, and means for
connecting said arms with said clamps, so that, when desired, the said arms may be
raised, to lift said pins, when the clamps are opened.
13. The combination with a track or guideway and a travelling sewing machine
to run thereon, said sewing machine being provided with a stop-motion device, of
clamps comprising the movable clamp-carrying arms E, the rods d, by which said
arms are carried, and stopping devices, as lugs &, movable with said rods and
clamp-carrying arms, said stopping devices being so constructed and arranged as to
be in the path of movement of some portion of the said stop-motion devices of the

page_text: machine when the clamps are open, but to be in such position as not to operate the
stop-motion device when the clamps are closed.
14. The combination with a track or guideway and a travelling sewing machine
to run thereon, and provided with start and stop-motion devices, of clamps comprising
the movable clamp-carrying arms E, the rods d by which said arms are carried,
starting devices, as cams, and stopping devices, as lugs d³, movable with said rods
and arms and so arranged relative to the start and stop motion devices of the
machine as to stop the machine if the clamps be open, and to start the machine when
the clamps are closed.
15. The combination with a track or guideway and a travelling sewing machine
to run thereon, of clamps comprising the clamp-carrying arms E, the rods by which
said arms are carried, the lugs d³ and tlie cams d' movable with said rods and arms,
the stopping and starting lever O having an arm a part of which is arranged to be
engaged by a cam d to start the machine, and the dog P serving to lock the said
starting and stopping lever in an inoperative position when the machine is in
operation, said dog having a tripping arm p³ to be engaged by one of the said lugs d³
when a clamp is open, and the machine is to be stopped.
16. The combination with the travelling sewing machine having the driving
shaft m. of the wheel m¹ fixed to said shaft, the driving pulley M loose relative to
said shaft, the shoe m³ interposed between said wheel and pulley, the clutch cam n
seated in said wheel and having a spring-pressed arm by which it is caused to act on
said shoe to couple the said pulley M with the said wheel m', when desired, and a
starting and stopping lever O having a spring-pressed arm o to disengage the said
clutch devices, and having also the tail-piece o' and the arm of which latter, when
pressed upon, will permit the clutch to act to couple the driving pulley M with the
said wheel m', and the spring-pressed locking dog P having a lug p arranged to
engage said tail-piece o, to hold the said arm o out of engagement with the clutch
devices.
17. The combination with the travelling sewing machine having the driving
shaft m, of the wheel m¹ fixed to said shaft, the driving pulley M loose relative to
said shaft, the shoe m² interposed between said wheel and pulley, the clutch cam n
seated in said wheel and having a spring-pressed arm by which it is caused to act
upon the said shoe to couple the said wheel with the said pulley, the starting and
stopping lever O provided with the arm o having a shoulder o' to engage the edge
of the said spring-pressed arm, and thus release the said shoe from binding contact
with the said pulley, said arm o having also a brake portion to bear against the
face of the spring-pressed clutch arm to arrest the movement of the said wheel m',
the spring o³ for operating said starting and stopping lever in one direction, the
locking dog P to hold the said lever O in an inoperative position when the machine
is running, and the arm of carried by the said lever O and which, when pressed upon,
releases the arm O from the clutch and permits the latter to act to start the machine.
18. The combination with the travelling sewing machine having the driving
shaft m, of the wheel m¹ fixed to said shaft, the driving pulley M loose relative to
said shaft, the shoe m³ interposed between said wheel and pulley, the clutch cam n
seated in said wheel and having a spring-pressed arm by which it is caused to act
upon the said shoe to couple the said wheel with the said pulley, the starting and
stopping lever O provided with the arm o having a shoulder o¹ to engage the edge
of the said spring-pressed clutch arm, and thus release the said shoe from binding
contact with the said pulley, said arm o having also a brake portion to bear against
the face of the spring-pressed clutch arm to arrest the movement of the said wheel m¹,
the spring o³ for operating said starting and stopping lever in one direction, the
locking dog P to hold the said lever O in an inoperative position when the machine
is running, and the arm of carried by the said lever and which, when pressed
upon, releases the arm o from the clutch and permits the latter to start the machine,
said arm of being provided with a spring-pressed pivoted lug or projection o which
is adapted to yield in one direction so that the machine will not be set into operation
when being returned to its starting position.

page_text: 19. The combination with a track or guideway and a travelling sewing machine
to run thereon and provided with a starting and stopping lever, of a locking dog by
which the said starting and stopping lever is held in an inoperative position when
the machine is running, but which is provided with a tripping arm to release the
said lever when the machine is to be stopped, said tripping arm having positive
connection with said dog in one direction but being yieldingly connected with the
said dog so that it may be moved freely in an opposite direction, when the machine
is running backwards, to be returned to its starting position, without operating
said dog.
20. The combination with a track or guideway and a travelling sewing machine
to run thereon, of an endless driving belt, means for operatively connecting said
belt with the driving pulley of the machine, to set the latter in operation, an
independent endless returning belt for running the machine backward to its starting
position, and a gripping device for the said returning belt consisting of a block 9.
on
the machine and the lever Q having a gripping portion to engage the said returning
belt and force it against the said block 9, and a spring-pressed locking dog R for
holding the said lever Q in gripping position.
21. The combination with a track or guideway and a travelling sewing machine
to run thereon, of an endless driving belt, means for operatively connecting said
belt with the driving pulley of the machine, to set the latter in operation, an
independent endless returning belt for running the machine backward to its starting
position. and a gripping device for the said returning belt, said gripping device
consisting of the block 7 on the machine and the lever Q having a gripping portion
to engage the said returning belt and force it against the said block 7, a spring-
pressed locking dog R for holding the said lever Qin gripping position, and a
releasing device for the said locking dog, said releasing device being placed near
the starting point of the machine.
22. The combination with a track or guideway and a travelling sewing machine
to run thereon, of an endless driving belt, means for operatively connecting said belt
with the driving pulley of the machine, to set the latter in operation, an endless
driving belt for running the machine backward to its starting position, and a gripping
device for the said returning belt, said gripping device consisting of the block 9 on
the machine and the lever having a gripping portion to engage the said returning
belt and force it against the said block 9, a spring-pressed locking dog R for holding
the said lever Qin gripping position, and a releasing device for the said locking dog,
said releasing device being placed near the starting point of the machine, and
consisting of a spring-pressed arm and the hanger by which said arm is carried.
23. An apparatus for holding fabrics to be sewed by a travelling sewing machine
and comprising a series of clamps each composed of a spring-pressed pivoted lever,
as e, supported by a stationary part of the apparatus, and a swinging arm E
carrying a spring-pressed pivoted lever, as e, said levers being provided at their outer
or free ends with gripping jaws.
24. The combination with a track or guideway and a travelling sewing machine
to run thereon, of a fabric holding apparatus comprising the pivoted rods a provided
with arms E carrying spring-pressed clamp levers e. spring-pressed clamp levers e,
supported by a stationary part of the apparatus, to co-operate with the said leverse
and hold the fabrics, the arms 8 movable with the said arms E and rods d, the
operating levers and the links f2 connecting the said levers with the said arms e³.
25. The combination with the rods d and the clamp-carrying arms E movable
therewith, of the arms rigidly attached to said rods and provided with counter-
balancing weights D serving to throw out the said clamp-carrying arms E when the
latter are released.
26. The combination with the rods and the clamp-carrying arms E supported
thereby and movable therewith, of the arms 9 carrying the impaling pins g' and
pivoted on said rods d, and means for connecting said arms 9 with the said rods
when desired.
27. The combination with the rods d and the clamp-carrying arms E supported

page_text: thereby and movable therewith, of the arms a pivoted on said rods and provided
with impaling pins g', the notched collars de attached to said rods, and the spring-
pressed locking levers having lugs or hooks i to engage said notched collars and
thus connect said arms g with the said rods, when desired.
28 The combination with the clamps comprising the swinging arms E carrying
suitable clamping devices and co-operating devices an a stationary part of the
apparatus, of the levers by which said arms E are operated to open or close the
clamps, connections between said arms and levers, and spring-pressed releasing
latches s movable with the said arms E and arranged to engage the said levers fand
lift the latter to open the clamps.
29. The combination with the rods d provided with the arms E and the collars d¹,
of the levers connected with the said arms E and provided with inclines f³, clamps
which are closed and opened by the movements of said levers, spring-pressed
releasing latches s mounted on said collars and having shoulders to engage the
said levers, said shoulders being overridden by the inclines on the said levers f
when the latter are brought down to close the clamps, but being brought beneath
the said levers, to be in position to lift the latter, as the succeeding clamps of the
series are successively closed.
30. In a sewing machine the combination with a feeding mechanism, of an eye-
pointed needle, an eyed or thread-carrying looper to pass loops of its thread through
the loops of needle thread, a non-thread-carrying looper to take the looper loop
and bold them for the passage of the needle, and operating mechanism for the said
needle and loopers; the said loopers being located on opposite sides of the path of
movement of the said needle, the said thread-carrying looper being reciprocated in
a path transverse to the plane of movement of the needle, the said non-thread-
carrying looper being reciprocated in a plane transverse to the plane of movement
of the said thread-carrying looper, and the parts being timed, substantially as
described, to withdraw the said thread-carrying looper from a loop of needle thread
while the needle is making its backward or return movement, to permit the needle
loops to be tightened while the needle is out of the work, and the looper-loops
being held by the non-thread-carrying looper while the feed is occurring.
31. In a sewing machine, the combination with a feeding mechanism, of an eye-
pointed needle, an eyed or thread-carrying looper to pass loops of its thread through
the loops of needle thread, a non-thread-carrying looper to take the looper loops
and hold them for the passage of the needle, a take-up device for the needle thread,
and operating mechanism for the said needle and loopers; the said loopers being
located on opposite sides of the path of movement of the said needle, the said
thread-carrying looper being reciprocated in a path transverse to the plane of
movement of the needle, the said non-thread-carrying looper being reciprocated in
a plane transverse to the plane of movement of the said thread-carrying looper,
and the parts being timed, substantially as described, to withdraw the said thread-
carrying looper from a loop of needie thread while the needle is making its back-
ward or return movement, to permit the needle loops to be tightened while the
needle is out of the work, and the looper loops being held by the non-thread-
carrying looper while the feed is occurring.
32. In a sewing machine, the combination with a feeding mechanism, of an eye-
pointed needle, an eyed or thread-carrying looper to pass loops of its thread through
the loops of needle thread, a non-thread-carrying looper to take the looper loops
and hold them for the passage of the needle, a take-up device for the needle thread,
a pull-off and take-up device, for the looper thread, and operating mechanism for
the said needle and loopers; the said loopers being located on opposite sides of
the path of movement of the said needle, the said thread-carrying looper being
reciprocated in a path transverse to the plane of movement of the needle, the said
non-thread-carrying looper being reciprocated in a plane transverse to the plane of
movement of the said thread-carrying looper, and the parts being timed, substan-
tially as described, to withdraw the said thread-carrying looper from a loop of
needle thread while the needle is making its backward or return movement, to

page_text: permit the needle loops to be tightened while the needle is out of the work, and
the looper loops being held by the non-thread-carrying looper while the feed is
occurring.
33. The combination with the guide rods c¹, the needle-carrying slide C¹ and
the cam-grooved cylinder for operating the same, of the thread-carrying looper d¹¹
and the non-thread-carrying looper 10 placed on opposite sides of the path of
movement of the needle, and means for reciprocating said loopers in planes
transverse to each other.
34. The combination with the driving shaft m provided with the cylinder g*
having the cam-groove g³ of the needle-carrying slide C¹ having a pin or roller
stud engaging said cam groove, the double cam 8, the yoke d embracing said cam
and provided with the arm do, the eye-looper 1 carried by said arm do, the eyed-
looper d carried by the said arm 10, the double cain f, the yoke f' embracing
said cam and having the arm and the non-thread-carrying looper f" carried
by said arm.
35. The combination with the driving shaft m provided with the cylinder 9'
having the cam-groove g³, of the needle-carrying slide C¹ having a pin or roller
stud engaging said cam groove, the double cam do, the yoke embracing said cam
and provided with the arm do, the eyed-looper d" and the pull-off and take-up
arm 3 both carried by said arm do, the eyed thread guide arm & co-operating
with said pull-off and take-up arm, the double cam f, the yoke f' embracing said
cam f and having the arm and the non-thread-carrying looper f10 carried by
said arm.
36. The combination with the needle-carrying slide C₁ having thread eyes c
movable therewith and means for operating said slide, of the stationary thread
stop c, the loopers d¹ and f10, and means for operating said loopers.
37. The combination with a track or guideway and a travelling sewing machine
to run thereon, and provided with a feed lever and a holding bar both having engaging
teeth or parts, a rack-bar, and means for operating said feed lever and holding bar
to cause the engaging teeth or parts thereof to alternately engage the teeth of said
rack-bar and to vibrate said feed lever to move the machine forward when the
tooth of the holding bar is disengaged from the said rack-bar.
38. The combination with a track or guideway and a travelling sewing machine
to run thereon and provided with a feed lever and a holding bar, a rack-bar with
which the said feed lever and holding bar are adapted for engagement, means for
operating said feed lever and holding bar to cause them to engage said rack-bar
alternately, and a pivoted part by which the rack-bar engaging portion of said feed
lever is carried so that it may be swung aside to disconnect said travelling machine
from said rack-bar when said machine is to be run backwards.
39. The combination with a track or guideway and a travelling sewing machine
to run thereon and provided with feeding and holding devices, a rack-bar, and
means for operating said feeding and holding devices to cause them to engage said
rack-bar alternately, the engaging part of one of said devices being constructed to
be swung aside so that the machine may be wholly disengaged from said rack-bar
when desired.
40. The combination with the travelling sewing machine the driving shaft of
which is provided with the eccentric and the cam, of the feed lever H¹
operated by said eccentric to have a reciprocating and vibrating motion and the
holding bar I operated by said cam to have a reciprocating movement only.
41. The combination with the travelling sewing machine the driving shaft of
which is provided with the eccentric and the cam, of the feed lever H¹
operated by said eccentric to have a reciprocating and vibrating motion and the
holding bar I operated by said cam to have a reciprocating movement only, the
said feed lever having the pivoted yoke provided with the operating handle h² -
and with the feeding tooth ³.
42. The combination with a travelling sewing machine provided with a removable
guide or pile controlling device to ride over the edges of the carpets, of a spring

page_text: catch for removably attaching said guide or pile controlling device to the said
machine.
43. The combination with a track or guideway consisting of the lower and upper
rods 6 and 6, of a travelling sewing machine provided with lower and upper
grooved wheels 63 and 6 engaging said rods, the yokes carrying said wheels 6³
and having shanks, the machine frame provided with sockets in which said shanks
fit, and coil springs placed in said sockets beneath said shanks.
44. A guide, for use with travelling sewing machines, made in the form of a
saddle or inverted trough with depending sides converging towards each other
rearwardly, said guide being provided with a central dividing plate or divider.
45. A guide, for use with travelling carpet sewing machines, made in the
form of a saddle or inverted trough with depending sides, and provided with a
central divider and with a separator placed below said divider and of greater
thickness than the latter.
46. A guide, for use with travelling carpet sewing machines, made in the form
of a saddle or inverted trough with depending, flaring sides slotted to form needle
openings and provided with a central divider and with a separator below said
divider and of greater thickness than the latter, the forward end of said separator
being extended beyond or forward of said divider.
47. A guide, for use with travelling carpet sewing machines, made in the form
of a saddle or inverted trough with depending, flaring sides slotted to form needle
openings and provided with a central divider and with a separator below said
divider and of greater thickness than the latter, the forward end of said separator
being extended beyond or forward of said divider and the rear end of said separator
being some little distance in front of said needle slots.
48. A guide, for use with travelling carpet sewing machines, made in the form
of a saddle or inverted trough with depending, rearwardly converging sides, and
having beneath its apex a guiding surface which inclines downward rearwardly.
49. A guide, for use with travelling carpet sewing machines, made in the form
of a saddle or inverted trough with depending, outwardly flaring sides, and having
beneath its apex a guiding surface the rear portion of which is horizontal and the
forward part of which inclines downward rearwardly.
50. A guide, for use with travelling carpet sewing machines, made in the form of a
saddle or inverted trough with depending, outwardly flaring sides, and having beneath
its apex a guiding surface the rear portion of which is horizontal and the forward
part of which inclines downward rearwardly, with a downward jog or projection at
the rear end of said inclined forward part.
51. A pile controlling apparatus for carpet sewing machines consisting of the
combination with a guide provided with a centrally placed dividing plate or
divider, of a piler or pilers working on both sides of said divider and in a plane
transverse to the longitudinal edges of the carpet-sections to be united.
52. A pile controlling apparatus for carpet sewing machines consisting of the
combination with a guide provided with a dividing plate or divider, of a double
piler straddling said divider, and means for reciprocating said piler in a plane
transverse to the length of said divider and also transverse to the longitudinal
edges of the carpet sections to be united.
53. The combination with the guide A' having depending flanges or wings and
provided with the centrally placed dividing plate or divider g, of the reciprocating
piler n straddling said divider, and the guides o8 between which and the guide A³
the said piler works.
Dated this 28th day of August 1894
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.