Improvements in Sewing Machines.
Year: 1890

page_text: Date of Application, 17th May, 1890
Complete Specification Left, 17th Feb., 1891-Accepted. 28th Mar.. 1891
PROVISIONAL SPECIFICATION.
Improvements in Sewing Machines.
I, ALEXANDER ANDERSON, Manager of the Singer Manufacturing Company's
Works, Kilbowie, Dumbartonshire, do hereby declare the nature of this invention
(as communicated to me from abroad by the Singer Manufacturing Company, of
New York, in the United States of America, Sewing Machine Manufacturers) to
be as follows:-
:―
This invention relates to sewing machines and it comprises improvements in and
connected with the pressers or presser feet which hold down the fabric, in the feed
mechanism in tension devices and in spool carriers for such machines.
Under one modification of the improvements as applied to a machine having a
roller presser an auxiliary presser is provided which is vertically movable indepen-
dently of the main presser and which serves as a guard and guide for two diagonally
arranged and closely placed needles and as a stripper to prevent the work from
being lifted. This independent presser is preferably carried by a sleeve surrounding
the main presser bar and is yieldingly held down by a spring surrounding said bar
and arranged between the said sleeve and the lifting bracket.
To the lower end of the main presser bar is attached a bracket, which carries the
roller presser, which is the form of presser preferably used for leather work as it
does not mar or scratch the surface thereof. Surrounding the lower part of the
presser bar and fitting closely in a proper aperture in the lower bearing lug of the
machine head is a sleeve or tubular bar to the lower part of which is attached by a
screw the auxiliary presser and needle guard and guide the foot portion of which is,
in the present instance, provided with two diagonally arranged holes or eyes for the
passage of the two diagonally arranged needles. The auxiliary presser is held
down by an independent coil spring surrounding the presser bar between the lifting
bracket and the top of said sleeve, said spring thus providing for vertical move-
ments of the auxiliary presser independently of the main or roller presser, the latter
being held down by the usual coil spring above the lifting bracket.
The foot portion of the auxiliary presser is arranged in close proximity to the
main or roller presser and is preferably cut away slightly on one side so that it may
partially overlap the flange of the said roller presser but the main portion of the
bottom of said foot will still be flush with the bottom of said roller presser. The
overlapping part of the said foot is however, slightly above the said flange so as not
to interfere with the free rotation of said roller presser. The auxiliary presser is
lifted with the main presser by reason of the engagement of some part of the latte.
with the former. This engagement is provided for in the present instance by
arranging the shank or attaching part of the roller carrying bracket immediately
beneath the lower end of the sleeve of the auxiliary presser and the shank of the
said presser so that when the main presser is raised from the work by the usual
lifter the auxiliary presser will also be raised; but as these parts of the auxiliary
presser are above the parts of the main presser by which they are engaged to be
lifted it results that the said auxiliary presser is free to have a vertical movement
independently of the main presser.
The feed points are beneath the main or roller presser but do not extend beneath
the auxiliary presser. Thus if the auxiliary presser which is rigidly attached to its
bar were not movable vertically independent of the main presser a thicker portion
of the work coming beneath the former would raise the latter so that the feed would
fail to act, and thus imperfect sewing would result; but owing to its independent
spring the improved auxiliary presser will permit of the passage beneath it of

page_text: portions of work thicker than are passing beneath the main or roller presser without
disturbing the action of the feed.
It thus results from my invention that, in sewing with two needles, one of which
is farther from the main presser than the other, the work is properly held down or
"stripped" from the needles as the latter rise so that their loops are properly
thrown out, while the two closely adjacent and slightly tapering needle holes in the
auxiliary presser foot adapt the latter to serve as a guide and guard for the needles
to cause them to maintain their proper positions and prevent them from fouling or
interfering with each other.
Under another modification the main and auxiliary pressers are each made in the
form of a horizontal foot attached adjustably to a vertical shank and they are con-
nected and arranged to rise alternately one being raised whilst the other bears on
the fabric on the throat plate. The presser which serves as a needle guard guide
and stripper is secured to the lower end of a presser bar of ordinary form held down
by a helical spring bearing on a block surrounding it and having centred on it a
bell-crank one arm of which has in it a slot in which works the pin of a secondary
crank on the crank which operates the needle bar and the other arm of which is
jointed to an arm fixed to the presser bar and through which arm and bell crank
the spring bearing on the loose block acts to keep down the presser. On the said
block is fixed a vertical bar guided in the machine head and having on it a stud or
pin to which is attached the second or vibrating presser bar so that the presser foot
attached to said bar which bears on the feed bar is free to move forward with said
feed bar a spring being provided to bring back the presser when it is raised out of
contact with the work plate. The bell crank is thus connected to both pressers and
in operation its centre on the block to which the vibrating presser is connected and
the joint pin on its arm to which the other presser is connected alternately become
the fulcrum of the bell crank. Thus if the stripper presser which is connected
to the arm of the bell crank is bearing on the work plate the joint pin in said arm
is the fulcrum or point on which the bell crank moves and its action is to raise the
block carrying the vibrating presser and when the latter presser bears on the feed
bar the centre on the block becomes the fulcrum of the bell crank and the stripper
presser is raised off the work plate. These motions are so timed that the stripper is
raised to free the fabric whilst it is being fed forward between the feed bar and the
vibrating presser whilst it descends and holds the fabric whilst the vibrating presser
is raised and brought back by the spring to the vertical position over the feed bar.
On the block on which the presser spring bears is formed a projecting arm which is
acted on by an ordinary hand lifter and by means of which both pressers are simul-
taneously raised.
The improved feeding mechanism is arranged to move the work diagonally to the
needles and permits the latter to be arranged one behind the other in the line of
movement of the shuttle, thus adapting my invention to be applied to machines as
ordinarily constructed with but little change. In carrying this part of my invention
into effect I provide the usual four-motioned feed bar with a diagonal guide way in
which is mounted a diagonally movable slide carrying the feed dog, the latter
extending up through a diagonal guiding slot in the throat plate. Thus as the feed
bar moves back and forth, horizontally, transversely of the work plate of the
machine, in its usual manner the diagonal guiding slot in the throat plate will cause
the feed dog connected with said bar to move diagonally to the needles to produce
two closely adjacent rows of stitches, the diagonal movements of the feed dog being
permitted by the diagonally movable slide carrying the feed dog and reciprocating
in the diagonal guide way mounted in the said feed bar. In connection with the
diagonally movable feed dog I preferably employ a diagonally arranged roller
presser.
Attached to the feed bar is a diagonal guideway in which is mounted a slide to
which is attached the feed dog and as the latter is at right angles to the said
diagonal guide-way and to the movements of said slide it is also diagonal to the
movements of the feed bar and shuttle and to a iine drawn through the centres of

page_text: the needles. The throat plate provided with a diagonal guiding slot in which
the feed dog works and which causes it to move diagonally as it is reciprocated
with the feed bar, such diagonal movement of the said feed dog being permitted by
the diagonally movable slide reciprocating diagonally in the guide way.
diagonal movement of the feed dog might however be effected by a diagonal guide
independent of the throat plate.
The
Bearing on the feed dog is a diagonally arranged roller presser connected in the
usual manner to the presser bar said presser assisting in the diagonal movement of
the work passing between it and the said feed dog. Although I prefer to use this
roller presser other well known forms of pressers might be employed in its stead.
A needle guide foot is provided having two holes for the passage of the needles to
steady them and prevent fouling of the needle threads.
From the foregoing it will be apparent that as the work will be fed diagonally to
a line passing through the centres of the needles two slightly separated rows of
stitches will be produced with two needles arranged one behind the other in the
direction of the horizontal movement of the feed bar and of the shuttle, so that
with but little change in a machine as ordinarily constructed it can be adapted for
double stitching.
It will be obvious with the use of my improved diagonal feed, permitting the use
of needles arranged one behind the other in line of movement of the shuttle, that
three or more needles may be employed for simultaneously forming three or more
rows of stitches the needle threads of which may all be interlocked by a single
shuttle thread, and I do not therefore wish to be understood as limiting my inven-
tion to the use of two needles only. Whilst I prefer to use an oscillating shuttle
any other well known form of shuttle or looper the equivalent thereof may be
employed.
In conjunction with the needle thread tension device which consists of the usual
flat discs held in contact by a spring I provide a combined tension release and
thread guide consisting of a pin passed loosely through an opening in the face plate
and projecting slightly to the rear of it where it terminates in a conical end in the
path of movement of the lifter so that when the latter is raised the pin is pushed
outwards and a minute flange or enlargement on the pin at a point between the
discs of the tension is caused to press the outer disc against the spring and relieve
the tension on the thread. By this means the thread may be freely drawn off in
removing the work when the lifter is raised. This pin also serves as a guide for
the thread on its way from the tension. The stud or pin which carries the tension
dises instead of being screwed into a boss or enlargement on the face plate is held
by friction the boss being split and the parts bound together by a screw.
The tail
of the wire spring forming the thread take-up is entered into a longitudinal groove
in the stud or pin and by relieving the pressure on the stud and turning it more or
less round the power of the spring take-up will be increased or lessened.
The thread spool instead of being held upon the usual fixed pin on the bracket
arm is suspended from a bracket fixed on said arm so as to be out of contact with
the latter and so that any thread passing over the flange of the spool instead of
coiling round the usual pin passes away freely.
In the end of the spool carrying bracket is a countersunk hole in which is loosely
held the head of a pin carrying two or more spring wires acting in the manner of a
split pin to engage the spool through the centre hole of which they pass the lower
ends being bent to hold the spool. Or a bent wire doubled to form a head for
suspension from the bracket and bulged lower down to engage the spool hole by
friction may be substituted for the pin and wires.
Datod this Sixteenth day of May 1890
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Sewing Machines.
, 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 :-
This invention relates to sewing machines and it comprises improvements in and
connected with the pressers or presser feet which hold down the fabric, in the feed
mechanism, in tension devices and in spool carriers for such machines.
Under one modification of the improvements as applied to a machine having a
roller presser an auxiliary presser is provided which is vertically movable inde-
pendently of the main presser and which serves as a guard and guide for two
diagonally arranged and closely placed needles and as a stopper to prevent the
work from being lifted as this would cause a failure of a proper formation of
loops of needle thread for the point of the shuttle or looper to enter. This inde-
pendent presser is preferably carried by a sleeve surrounding the main presser bar
and is yieldingly held down by a spring surrounding said bar and arranged between
the said sleeve and the lifting bracket.
.
In the drawings
Fig. 1 shews a portion of a sewing machine with this modification of my
invention applied thereto, the cap or face plate of said machine being removed.
Fig 2 is a front end view of the same with the main or roller presser and most of
its carrying bracket removed.
Figure 3 is a partial section on line 3-3 Fig. 2.
Fig. 4 is a detail section of the auxiliary and main pressers and
Fig. 5 is a detail perspective view of the auxiliary presser.
A denotes the sewing machine head and B the needle bar provided with two needles b
arranged diagonally to the line of feed so as to form two closely adjacent rows of
stitches as is often desired in stitching the vamps of shoes and other work. C is
the main presser bar to the lower end of which is attached a well-known form
of bracket C¹ which carries the roller presser c which is the form of presser
preferably used for leather work as it does not mar or scratch the surface thereof.
Surrounding the lower part of the presser bar C and fitting closely in a proper
aperture in the lower bearing lug a of the head A is a sleeve or tubular bar D to
the lower part of which is attached, by a screw d the auxiliary presser and needle
guard and guide the foot portion of which is, in the present instance, provided
with two diagonally arranged holes or eyes d for the passage of the two diagonally
arranged needles. The auxiliary presser d' is held down by an independent
coil spring d² surrounding the presser bar C between the lifting bracket c¹ and the
top of said sleeve, said spring thus providing for vertical movements of the
auxiliary presser independently of the main or roller presser, the latter being held
down by the usual coil spring above the lifting bracket.
The foot portion of the presser d' is arranged in close proximity to the main or
roller presser and is preferably cut away slightly on one side so that it may
partially overlap the flange 3 of the said roller presser but the main portion of the
bottom of said foot will still be flush with the bottom of said roller presser. The
overlapping part of the said foot is however slightly above the said flange c³ so as
not to interfere with the free rotation of said roller presser. The auxiliary presser
is lifted with the main presser by reason of the engagement of some part of the
latter with the former. This engagement is provided for in the present instance
by arranging the shank or attaching part of the roller-carrying bracket C
immediately beneath the lower end of the sleeve D of the auxiliary presser d' and
the shank of the said presser so that when the main presser is raised from the
work by the lifter E the auxiliary presser will also be raised; but as these parts of the
auxiliary presser are above the parts of the main presser by which they are engaged

page_text: to be lifted it results that the said auxiliary presser is free to have a vertical
movement independently of the main presser.
By reference to Fig. 1 it will be seen that the feed points are beneath the main
or roller presser but do not extend beneath the auxiliary presser. Thus if the
auxiliary presser which is rigidly attached to its bar were not movable vertically
independent of the main presser a thicker portion of the work coming beneath
the former would raise the latter so that the feed would fail to act, and thus
imperfect sewing would result; but owing to its independent spring the improved
auxiliary presser will permit of the passage beneath it of portions of work thicker
than are passing beneath the main or roller presser without disturbing the action
of the feed.
It thus results from my invention that, in sewing with two needles, one of which
is farther from the main presser than the other, the work is properly held down or
"stripped" from the needles as the latter rise so that their loops are properly
thrown out, while the two closely adjacent and slightly tapering needle holes in the
auxiliary presser foot adapt the latter to serve as a guide and guard for the
needles to cause them to maintain their proper positions and prevent them from
fouling or interfering with each other.
I am aware that it is not new to provide a sewing machine with main and
auxiliary pressers, but I believe that I ain the first to provide such a machine with
an auxiliary presser which is movable vertically independently of the main presser
and which is also adapted to be lifted by the latter.
Figure 6 is a side view with the casing in section of the head at the forward
part of the bracket arm of a sewing machine.
Figure 7 a front view with the face plate removed and
Figure 8 is a view of the presser mechanism from the rear or looking from the
inside of the head outwards and shewing another modification.
The main and auxiliary pressers are cach made in the form of a horizontal foot
attached adjustably to a vertical shank and they are connected and arranged to rise
alternately one being raised whilst the other bears on the fabric on the throat
plate. The presser which serves as a needle guard guide and stripper is secured
to the lower end of a presser bar C of ordinary form held down by a helical
spring m bearing on a block d surrounding it loosely and having centred on it at 2
a bell-crank F one arm of which has in it a slot in which works the pin 3 of a
secondary crank 2 on the crank pin which operates the needle bar and the other
arm of which is jointed by a roller stud c¹ to an arm e fixed to the presser bar C
and through which arm and bell crank the spring m bearing on the block d acts to
keep down the presser. On the said block is fixed a vertical bar D guided in the
machine head and having on it a stud or pin d² to which is attached the second or
vibrating presser bar G. so that the main presser foot g attached to said bar which
bears on the dog of the feed bar H is free to move forward with said feed bar a
spring k being provided on the bar D to bring back the presser bar G when
it is raised out of contact with the work plate. The bell crank F is thus connected
to both pressers and in operation its centre on the block d to which the vibrating
presser bar G is connected and the joint pin c¹ on its arm to which the other presser
bar C is connected alternately become the fulcrum of the bell crank. Thus if the
stripper presser c2 which is connected to the arm of the bell crank F is bearing on
the work plate the joint pin c¹ in said arm is the fulcrum or point on which the
bell crank moves and its action is to raise the block d carrying the vibrating
presser g and when the latter presser bears on the dog of the feed bar H the
centre on the block d becomes the fulcrum of the bell crank F and the stripper
presser is raised off the work plate. These motions are so timed that the
stripper is raised to free the fabric whilst it is being fed forward between the feed
bar and the vibrating presser whilst it descends and holds the fabric whilst the
vibrating presser is raised and brought back by the spring & to the vertical position
over the feed bar H. On the block d on which the presser spring in bears is formed

page_text: a projecting arm d' which is acted on by an ordinary hand lifter E and by means
of which both pressers are simultaneously raised.
The improved feeding mechanism, which is applied to sewing machines in which
two or more closely adjacent needles are employed, preferably in connection with a
single shuttle, for producing simultaneously, two or more closely adjacent rows of
stitches, as is desirable in stitching shoes and other kinds of work, is arranged to
move the work diagonally to the needles and permits the latter to be arranged one
behind the other in the line of movement of the shuttle, thus adapting my
invention to be applied to machines as ordinarily constructed with but little
change.
In carrying this part of my invention into effect I provide the usual four-
motioned feed bar with a diagonal guide-way in which is mounted a diagonally
movable slide carrying the feed dog, the latter extending up through a diagonal
guiding slot in the throat-plate. Thus as the feed bar moves back and forth, hori-
zontally, transversely of the work-plate of the machine, in its usual manner, the
diagonal guiding slot in the throat plate will cause the feed dog connected with said
bar to move diagonally to the needles to produce two closely adjacent rows of
stitches, the diagonal movements of the feed dog being permitted by the diagonally
movable slide carrying the feed dog and reciprocating in the diagonal guideway
mounted in the said feed-bar. In connection with the diagonally movable feed-dog
I preferably employ a diagonally arranged roller presser.
Figure 9 is a partial elevation of a sewing machine embodying this part of my
invention.
Fig. 10 is a partial front end view of the same.
Fig. 11 is a partial plan view of the work plate, shewing the throat plate and
feed.
Fig. 12 is a partial bottom view of the machine and
Fig. 13 is a section on line 5 of Fig. 11.
In the machine herein illustrated A. denotes the work plate, B a portion of the
depending head above the same, C the needle bar, c, c the needles, D the oscillating
shuttle-driving shaft, d the shuttle driver, E the shuttle, F the race in which the
latter oscillates, G the feed bar, H the rocking feed lifting shaft and I the rocking
shaft which imparts reciprocating horizontal movements to the said feed bar; these
parts being all constructed and operated as is usual in the well known oscillating
shuttle machine.
Attached to the feed bar G is a diagonal guideway J in which is mounted a
slide to which is attached the feed-dog and as the latter is at right angles to
the said diagonal guideway and to the movements of said slide it is also diagonal
to the movements of the feed bar and shuttle and to a line drawn through the
centres of the needles.
The throat plate a is provided with a diagonal guiding slot 6 in which
the feed-dog works and which causes it to move diagonally as it is reci-
procated with the feed bar, such diagonal movement of the said feed dog
being permitted by the diagonally movable slide K reciprocating diagonally in
the guide way J. The diagonal movement of the feed dog might, however, be
effected by a diagonal guide independent of the throat plate.
Bearing on the feed dog is a diagonally arranged roller presser L connected
in the usual manner to the presser bar M said presser assisting in the diagonal
movement of the work passing between it and the said feed dog. Although I
prefer to use this roller presser other well known forms of pressers might be
employed in its stead. A needle guide foot N is provided having two holes
for the passage of the needles to steady them and prevent fouling of the needle
threads.
From the foregoing it will be apparent that as the work will be fed diagonally
to a line passing through the centres of the needles two slightly separated rows
of stitches will be produced with two needles arranged one behind the other in

page_text: the direction of the horizontal movement of the feed bar and of the shuttle, so
that with but little change in a machine as ordinarily constructed it can be
adapted for double stitching. It will be obvious with the use of my improved
diagonal feed, permitting the use of needles arranged one behind the other in line
of movement of the shuttle, that three or more needles may be employed for
simultaneously forming three or more rows of stitches the needle threads of which
may all be interlocked by a single shuttle thread, and I do not therefore wish to be
understood as limiting my invention to the use of two needles only. Whilst I
prefer to use an oscillating shuttle any other well known form of shuttle or looper
the equivalent thereof may be employed.
I am aware that it is not entirely new to employ a diagonal feed in connection
with two needles, and I do not therefore claim this feature broadly, but I believe
that I am the first to mount a diagonally movable feed dog on an ordinary feed
bar and thus adapt a diagonal feed to machines as ordinarily constructed with but
little change.
The term "diagonal" as herein employed will be understood to mean diagonal to
a horizontal line extending in the direction of the movement of the feed bar or
passing through the centres of the needles.
In conjunction with the needle thread tension device which as represented in
face and end view and section at Figures 14, 15 and 16 consists of the usual flat
discs A, A' held in contact by a spring B I provide a combined tension release and
thread guide consisting of a pin C passed loosely through an opening in the face
plate D and projecting slightly to the rear of it where it terminates in a conical
end c in the path of movement of the lifter E so that when the latter is raised the
pin C is pushed outwards and a minute flange or enlargement c' on the pin at a point
between the discs A, A' of the tension is caused to press the outer disc A' against
the spring and relieve the tension on the thread. By this means the thread may
be freely drawn off in removing the work when the lifter is raised.
This pin C also serves as a guide for the thread on its way from the tension. The
stud or pin F which carries the tension discs A, A¹ instead of being screwed into a
boss or enlargement on the face plate is held by friction the boss D' being split as
shewn at Figure 15 and the parts bound together by a screw d.
The tail of the wire spring forming the thread take up is entered into a longitudinal
groove in the stud or pin; and by relieving the pressure of the holding screw < on
the stud F and turning it more or less round the power of the spring take up g will
be increased or lessened.
The thread spool instead of being held upon the usual fixed pin on the bracket
arm of the machine is as represented at Figures 17 and 18 suspended from a
bracket H fixed on said arm so as to be out of contact with the latter and so that
any thread passing over the flange of the spool instead of coiling round the usual
pin passes away freely.
In the end of the spool carrying bracket H is a countersunk hole in which is
loosely held the head of a pin or hook i carrying two or more spring wires I acting
in the manner of a split pin to engage the spool through the centre hole of which
they pass to hold the spool. Or a bent wire doubled to form a head for suspension
from the bracket and bulged lower down to engage the spool hole by friction may
be substituted for the pin and wires.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed (as communicated to
me), I declare that what I claim is :--
1. In a sewing machine, the combination with the main presser and its lifter, of an
auxiliary presser movable vertically independently of said main presser, a portion
of the said auxiliary presser being arranged over a portion of said main presser,
so that when the latter is raised from the work by the said lifter the said

page_text: auxiliary presser will also be raised, substantially as described with reference to
Figures 1 to 5 of the accompanying drawings.
2. In a sewing machine the combination with the main presser bar and presser
of an auxiliary presser bar and presser, said auxiliary presser bar being in the form
of a sleeve surrounding said main presser bar, and two independent springs for
depressing said main and auxiliary pressers, substantially as described with reference
to Figs. 1 to 5 of the accompanying drawings.
3. In a sewing machine the combination with the main presser bar, the presser
carrying bracket attached thereto and the lifter, of the auxiliary presser bar
adjacent to said main presser bar, the auxiliary presser attached to said auxiliary
bar, a portion of said presser carrying bracket being arranged beneath a part of the
auxiliary presser so that when the main presser is raised from the work by the said
lifter the said auxiliary presser will also be raised substantially as described with
reference to Figs. 1 to 5 of the accompanying drawings.
4. In a sewing machine the combination with a needle bar carrying two closely
adjacent needles of a main presser bar and presser, an auxiliary presser arranged
to bear upon the work and having two guiding holes for said needles a tubular bar
or sleeve, surrounding said main presser bar and by which said auxiliary presser is
carried, and two independent springs, for depressing said main and auxiliary presser
bars respectively substantially as described with reference to Figs. 1 to 5 of the
accompanying drawings.
5. The combination with the roller presser having the flange c³ of the auxiliary
presser cut away slightly on one side and arranged adjacent to said roller presser
with its cut-away portion overlapping said flange, substantially as described with
reference to Figs. 1 to 5 of the accompanying drawings.
6. In a sewing machine, the combination with a needle bar carrying two needles,
of a main presser and an auxiliary presser and needle guide and guard which is
movable vertically independently of said main presser and which is provided with
two guiding holes for the passage of said needles, substantially as described with
reference to Figs. 1 to 5 of the accompanying drawings.
7. In a sewing machine, the combination with a vertically-movable bar and a
swinging spring-retracted main presser-foot pivotally connected therewith, of a bell-
crank lever pivotally connected with said bar and having vertical and horizontal
arms, a rotating device engaging the said vertical arm of said lever and a presser-
bar carrying an auxiliary presser and provided with an arm connected with the
horizontal arm of the said lever, whereby the said pressers will be lifted alternately
and the said main presser, after swinging forward with the feed, will be returned
by its spring, substantially as described with reference to Figs. 6, 7 and 8 of the
accompanying drawings.
8. In a sewing machine, the combination, with the presser bar C, having the
rigid arm e and carrying the auxiliary presser c² of the bar D, provided with the
block d the bell crank lever F having slotted vertical and horizontal arms, the latter
connected with the said arm c, a rotating device, as crank-pin ³, engaging the said
slotted vertical arm, the swinging bar G, pivotally attached to the said bar D
and provided with the main presser g, and the returning-spring k, substantially
as described with reference to Figs. 6, 7 and 8 of the accompanying drawings.
9. In a sewing machine, the combination, with the rotating shaft and crank
disc, provided with crank pin b, having arm. 62, carrying crank pin ³, of the
presser bar C, carrying the auxiliary presser and provided with the angular
arm chaving stud c¹, the bar D, provided with the block d, and spring m,
bearing on the said block, the bell-crank lever F pivoted to the said block and
having slotted vertical and horizontal arms, the said vertical arm being engaged
by said crank-pin 3 and the said horizontal arm by the said stud c', the swinging
bar G, pivotally attached to the said bar D and carrying the main presser 9 and
the returning spring k, substantially as described with reference to Figs. 6, 7 and 8
of the accompanying drawings.

page_text: 10. In a sewing machine the combination with the rotating shaft and crank
disc, provided with crank pin 6, having arm b², carrying crank pin 63, of the presser
bar C, carrying the auxiliary presser ² and provided with the angular arm c, having
stud' c', the bar D, provided with the block d, having the arm d', spring m bearing
on the said block the bell-crank lever F, pivoted to said block and having slotted
vertical and horizontal arms the said vertical arm being engaged by said crank
pin 63 and the said horizontal arm by the said stud c' the swinging bar G pivotally
attached to the said bar D and carrying the main presser g the returning spring k
and the lifter E to engage said arm d' and lift both pressers together, substantially
as described with reference to Figs. 6, 7 and 8 of the accompanying drawings.
11. In a sewing machine, the combination with a feed bar reciprocating hori-
zontally transversely of the work-plate, in the usual manner, of a diagonally
movable feed-dog carried by said feed-bar, a needle bar having two or more needles
arranged one behind the other in the direction of the horizontal movements of
said feed bar, and a shuttle also moving horizontally in a direction parallel to a
line drawn through the centres of said needles, substantially as described with
reference to Figs. 9 to 13 of the accompanying drawings.
12. In a sewing machine, the combination with a feed bar reciprocating
horizontally transversely of the work plate, in the usual manner, of a diagonally
movable feed dog carried by said feed bar, a needle bar having two or more needles
arranged one behind the other in the direction of the horizontal movement of said
feed bar, a shuttle also moving horizontally in a direction parallel to a line drawn
through the centres of said needles, and a diagonally arranged roller presser
co-operating with said feed dog, substantially as described with reference to
Figs. 9 to 13 of the accompanying drawings.
13. In a sewing machine, the combination with a feed-bar reciprocating
horizontally transversely of the work-plate in the usual manner, and a diagonally
movable feed dog carried by said feed bar, of a needle bar carrying two or
more needles arranged one behind the other in the line of the horizontal move-
ments of said feed bar, a diagonal guide for causing a diagonal movement to be
imparted to the said feed dog as the said feed bar reciprocates horizontally in its
usual manner, and a shuttle co-operating with said needles, substantially as described
with reference to Figs. 9 to 13 of the accompanying drawings.
14. In a sewing machine the combination with a feed bar reciprocating
horizontally transversely of the work-plate in the usual manner, and a diagonally
movable feed dog carried by said feed bar provided with two or more needles
arranged one behind the other in the direction of the horizontal movements of said
feed bar, a throat plate provided with a diagonal guiding slot in which said feed
dog works, and a shuttle co-operating with said needles, substantially as described
with reference to Figs. 9 to 13 of the accompanying drawings.
15. The combination with the feed bar G provided with the diagonal guide
way J, of the diagonally movable slide K mounted in said guide way and provided
with the diagonal feed dog k, the throat plate a having the diagonal guiding slot b
in which said feed dog works, the needle bar C carrying two or more needles c
arranged one behind the other in the direction of the horizontal movements of
said feed bar, and a shuttle co-operating with said needles, substantially as described
with reference to Figs. 9 to 13 of the accompanying drawings.
16. In a sewing machine the combination with the needle thread tension discs of
a tension release and thread guide operated by the lifter substantially as described,
with reference to Figs. 14 and 15 of the accompanying drawings.
17. In a sewing machine the combination with the needle thread tension device
of a thread take up spring secured on the stud carrying the tension discs and means
for adjustably securing said stud in the face plate substantially as described, with
reference to Figs. 14, 15 and 16 of the accompanying drawings.
18. In a sewing machine the combination with the needle thread tension device
of a tension release operated by the lifter and an adjustable take up spring
R

page_text: substantially as described with reference to Figs. 14, 15 and 16 of the accompanying
drawings.
19. In a sewing machine a thread spool carrier constructed and fitted substantially
as described, with reference to Figs. 17 and 18 of the accompanying drawings.
Dated this Sixteenth day of February 1891.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.