Improvements in Sewing Machines.
Year: 1899

page_text: Date of Application, 20th June, 1899-Accepted, 22nd July, 1899
Improvements in Sewing Machines.
I, CHARLES ALMY DEARBORN, of 584, Hudson Street, New York City, in the
County and State of New York, United States of America, Mechanical Engineer,
do hereby declare the nature of this invention, and in what manner the same is
to be performed, to be particularly described and ascertained, in and by the
following statement:-
The invention relates to improvements in sewing machines, and consists in
the novel features, arrangement and combinations of parts hereinafter described
and more particularly pointed out in the claims.
The object of the invention is to provide a machine for doing blind-stitching,
and, when desired, overseaming-blind-stitching, such as might be required,
among other purposes, for seaming the lower edge of trouser legs, skirts, and
other garments; and in carrying the invention into effect, my purpose is to
provide a very durable machine comprising the minimum number of parts and
adapted for high speed. A further object of the invention is to cause the looper
to describe a new path in forming the stitches, whereby any tendency on the
part of the looper to clash or interfere with the needle, when the machine is
running under high speed, is entirely obviated. A further object of the inven-
tion is to provide a machine, whose parts are substantially entirely exposed, for
the convenience of the operator in applying the goods to be sewed, and for the
convenience of the manufacturer in constructing the machine or repairing the
same or adding renewed parts thereto.
.
The invention will be fully understood from the detailed description herein-
after presented, reference being had to the accompanying drawings, in which:
Fig. 1 is a top view, partly broken away, of a machine constructed in accord-
ance with and embodying the invention;
Fig. 2 is a detached sectional view of a portion of same on the dotted line 2-2
of Fig. 1; and looking into the clutch mechanism for actuating the feed
mechanism;
Fig. 3 is a side elevation of the machine;
Fig. 4 is a detached side elevation of a portion of the mechanism for driving
the looper;
Fig. 5 is a detailed horizontal longitudinal section of same;
Fig. 6 is a vertical longitudinal section through a portion of the machine on
the dotted line 6-6 of Fig. 1, and illustrates more particularly the means for
imparting motion from the power shaft to the lever arm, which is connected by
a pitman rod with the clutch mechanism shown in Fig. 2;
Fig. 7 is an enlarged top view, partly in section, of a portion of the machine.
and illustrates more particularly the feed cylinder, rigid presser foot, looper and
needle, the needle being shown as having passed through the goods and about
to recede, and the looper being shown as passing forward with its projecting
pointed end under the loop of the thread;
Fig. 8 is a top view, partly in section, showing the rigid presser foot, the
goods being sewed, the looper and the needle, the needle being shown as having

page_text: substantially receded from the goods, and the looper as having advanced toward
the operator and carrying the loop forward in a substantially horizontal direction
on a substantially straight path;
Fig. 9 is a like view of came, the needle in this figure being shown as having
passed entirely from the goods and to the left of the looper, and the looper being
shown as having completed its forward motion and as having turned axially
almost entirely across the line of the sewing;
Fig. 10 is a like view of same, the looper being shown as having completed
its motion to the left of the line of sewing, and as receding toward the rear on
a substantially horizontal path, and the needle being shown as passing below the
point of the looper and through the loop just about to be dropped by the
looper;
Fig. 11 is a detached front elevation, partly broken away, of that portion of
the machine more directly connected with the operation of sewing, this figure
illustrating a part of the feed cylinder, the rigid presser foot, the needle, and
the looper, the needle and looper being shown substantially in the position in
which they are illustrated in Fig. 7;
Fig. 12 is a vertical transverse sectional view on the dotted line 12--12 of
Fig. 7; and
Fig. 13 is a plan view of a piece of the goods sewed upon and illustrating the
overseaming stitch made by the machine embraced in this application.
In the drawings, A designates the rigid general frame of the machine, this
frame comprising the base B upon which the machine may rest, the broad
upwardly extending rear arm or section C which terminates in the sleeves or
bearings D, D, the forwardly projecting arm E which guides the needle bar
and looper, and the front substantially vertical broad arm F, which is in line
with the rear arm C, and at its upper end is formed with the sleeve G which
receives the horizontal shaft H of the hinged front plate or section I carrying
the feed mechanism. The frame A comprising the base B, arm C, sleeves D), D,
arm E, arm F and sleeve G which are in one integral casting, and, as shown,
the arms C, F, afford at their upper portions the bearings for the power shaft,
lettered J, and the shaft H upon which the plate or section I, carrying the feed
mechanism, has its motion.
The hinged plate or section I is cast with the sleeves K, K, to receive the
ends of the shaft, H, and also with the sleeves L, L, which afford bearings for
the feed shaft M. The section or plate I is also cast with the forwardly pro-
jecting handle N, which is in the form of a flat arm of convenient outline to
receive the pressure of the hand of the operator when it is desired to press the
front portion of the plate or section I downward, so that the feed wheel O may
pass sufficiently below the rigid presser foot P to permit of the introduction of
the fabric between said feed wheel and said presser foot. The plate or section
I is shown in its normal upper position in Figs. 1 and 3, and said plate or section
is normally retained in this position by means of a spring Q shown in Fig. 8,
by full lines, and in Fig. 1 by dotted lines, which spring is held at one end by
the rod R and at its other end is connected with the arm S which is cast with
the plate or section I and extends downward from the left hand sleeve K. The
inner end of the rod will be threaded, so that it may be screwed into the front
portion of the arm F, and also so that thereby said arm R may be rendered.
adjustable in order to create more or less tension in its spring Q, according to
the strength of the spring, the thickness of the goods to be sewed, and other
circumstances. Substantially in line with the rod R there is provided in a
hub T cast on the arm F, an adjusting screw V, whose point is in position to
form a stop for the arm S, and the purpose of this adjusting screw V in form-
ing a stop for the arm S, is to adjust and limit the upward motion of the plate
or section I and feed cylinder 0 in accordance with the character of goods or
fabric to be sewed. When the plate or section I is turned downward to relieve
the feed cylinder 0 from the rigid presser foot P, and is then released, the

page_text: spring Qwill restore the section or plate I and feed cylinder 0 to their normal
upward position.
The section or plate I is, as shown, substantially horizontally disposed, and
carries the transverse feed shaft M, having upon one end the feed cylinder .0
and upon the other end the clutch wheel W, and said feed shaft M receives its
motion from the power shaft through the medium of the eccentric X (see
Fig. 6) on said shaft, the pivoted lever Y whose upper end is forked to engage
said eccentric X, the pitman rod Z whose rear end engages and is adjustable in
the slotted lower end of said lever Y, and the rocking lever a, shown in Fig. 2.
whose lower end is pivotally secured to the front end of the pitman rod Z, and
which co-operates with the clutch dogs b, b, of well known form and construction
in this art, and which engage the rim of the clutch wheel W, so as to turn
said wheel upward and toward the rear when the pitman rod Z is moving forward,
and release said rim and slide freely thereon when the pitman rod % is moving
toward the rear.
The pitman rod Z is horizontally disposed and is exposed, and
its connection with the rocking lever Y and rocking arm a is at exposed points
so that said rod and its connections may be readily gotten at for the purpose of
adjustment or other wise. The clutch wheel W. is also in an upper exposed posi-
tion so that it may be readily inspected or removed without disturbing the other
parts of the machine. In order that the clutch wheel W may have no reverse
motion and simply a positive predetermined feed motion, I provide on the front
of the arm F a brake comprising a rod d having an outer split end which straddles
the rim of the clutch wheel W, and is normally held in position by a spring e,
shown in Fig. 1, from binding against the face edge of the arm of the clutch
wheel W. The rod is mounted in lugs or sleeves f, f, cast on the lower side'
of the plate or section I, and its outer split end, indicated by dotted lines in
Fig. 2, straddles the aim of the wheel W in the same manner that, the arms of
the dogs b, b, straddle said rim. The brake comprising the rod and spring e
permits the driving of the clutch wheel W in the direction in which said wheel
may be actuated by the clutch dogs b, b, but prevents any reverse motion of
said wheel.
While the general form and construction of the main frame A and the hinged
section or plate I with the disposition of the actuating parts hereinbefore referred
to, are important and desirable, in that they render the machine durable and
inexpensive of construction, the more important features of the machine are
those presented at the left hand side thereof, and comprising the needle, looper
and feed cylinder, together with the mechanism by which said parts receive their
motion, and since the feed cylinder has been herein before referred to by
reference letter, I will proceed at once to describe it.
The feed cylinder 0 is, as shown in Figs. 1, 3 and 7, cylindrical in outline and
secured upon the left hand end of the feed shaft M; and said feed cylinder (
comprises the outer taper portion g, the inner regular smooth portion h, the sub-
stantially central toothed or serrated portion i, the annular narrow shoulder j
intermediate the edges of said serrated portion i, and the annular grooved por-
tion k. The toothed or serrated portion of the feed cylinder 0 effects, during
the revolution of said cylinder, the proper inward feed of the fabric; the annular
narrow shoulder forms the bight in the fabric and enables the needle to form
a blind-stitch; the grooved portion affords space for the fold in the fabric to
rest within and insures the convenient inward feeding of the fabric, and the
taper portion of said cylinder O affords abundant room for the proper guiding
of the fabric by hand and its easy insertion below. the rigid presser foot P. The
annular shoulder j of the feeding cylinder O presses the goods upward into the
curve m of the presser foot P so that the needle may pass through the upper
layer of the goods and only partly through the lower layer of the goods, and
thus, at all times, be enabled to make the blind-stitch, that is a stitch whose
threads will not appear at the outer side of the fabric. The feed cylinder O is.
on the shaft M, and since the shaft M is carried by the plate or section I, the

page_text: feed cylinder O may be readily moved downward from the presser foot P, when-
ever desired.
q
The presser foot P is a rigid piece of metal carried by the arm E, at the front
portion of the latter, and curving downward to the right and then toward the
left over the feed cylinder O, as illustrated in Fig. 11. The foot portion n of
the presser foot P contains the curve m, hereinbefore referred to, and is formed
with the elongated opening 7 shown in Figs. 7 and 8, through which the needle
may move, and which permits of the proper manipulation by the looper. The
needle moves transversely across the path of the fabric and is lettered r, and this
needle ris.curved, as shown in Figs. 11 and 12, so as to travel on an arc of a
circle. The needle r is secured in the lower end for an oscillating arms, which
extends outward and downward from the front end of the needle shaft t, the
latter being mounted in sleeves w, w, cast on the outer side of the arm E form-
ing a part of the main casting A. The shaft is a rock shaft and receives its
motion from the power shaft J, through the eccentric a on said shaft, as shown
in Fig. 4, the eccentric strap y upon said eccentric a, the eccentric rod z con-
nected with said strap, the pin A engaged by the upper end of said eccentric
rod z, and the crank B, which at one end carries said pin A¹ and at its other
end, which is tubular, (as at C) is fastened upon the rear end of the said shaft.
During the revoluble motion of the power shaft J, the eccentric a imparts a sub-
stantially vertical motion to the eccentric rod z, and this in turn imparts a sub-
stantially oscillating motion to the crank B, whereby the shaft is caused to
rock in its bearings w, w, and to impart an oscillating motion to the arm s
directly carrying the needle r, the latter being thereby caused to enter and
recede from the fabric under the action of the power shaft J.
The looper rod is lettered D) and it receives its motion from the power shaft J
and carries at its front end the looper E which is of novel form and construc-
tion, will be hereinafter more fully described. The looper rod D is given
a reciprocatory motion and also an axial motion from the power shaft J by the
means more fully illustrated in Figs. 1, 3, 4 and 5, in which it will be seen,
that upon the end of the power shaft J is secured a disk F¹ having the angular
arm G extending outward therefrom, and carrying at right angles thereto the
pin H upon which is mounted or swiveled the sleeve I', the latter being capable
of a revoluble motion upon said pin H¹ and being directly connected with the
looper rod D through the medium of the yoke J', more fully illustrated in
Fig. 3. The arms of the yoke J are mounted upon the ends of a pin K¹ passing
through the sleeve I' at one side of the pin H', and the ends of the arms of said
yoke J¹ may turn upon said pin K¹, as upon trunnions. The disk F', arm G¹,
pin H, sleeve 1', and yoke constitute a novel mechanism for transmitting
motion from the power shaft J, to the looper rod D), and for converting the
revoluble motion of said shaft J into a reciprocatory and oscillating motion in
the looper rod D¹. The revoluble motion of the disk carrying the pin H¹
drives the looper rod D¹ back and forth in a horizontal direction, and in view of
the angular position of the pin H and the swiveled connection of the sleeve I¹
thereon with the looper rod D¹, the latter during this reciprocatory motion is
also given a limited axial oscillation, for the purpose of causing the looper E¹
to travel forward along the right hand side of the path of sewing, as shown in
Fig. 7, to a point in advance of the needle, and then to turn upward and across
the path of the sewing to the left hand side thereof, as shown in Figs. 9 and 10,
then to travel rearward, as shown in Fig. 9, until the loop has been dropped
and the point of the looper has receded out of the way of the needle, and then
to turn upward and over the line of sewing at the rear side of the needle, and
again across the path of the sewing and move forward along the right hand side
of said path, as shown in Fig. 7, to again take the loop. The mechanism of
actuating the looper rod D' is such that the looper rod is at all times positively
moved, and so moved that the looper will never interfere with the needle, and
will always positively and certainly take the loop at the proper point and then

page_text: drop the loop at the proper point, no matter how high a speed may be imparted
to the machine.
While the looper rod D is being given its reciprocatory motion and its axial
motion, it also has a rocking motion, by virtue of its connection with the power
shaft Jby the means above described, and this rocking motion is permitted
in the rod D¹, owing to the fact that the front portion of this rod is supported
by and adapted to slide within the pivotally mounted sleeve. L', (see Figs. 1
and 3), which is secured by the pin M' at the lower portion of the main forwardly
extending arm E. The sleeve L' is free to have an axial or rocking motion upon
the pin M, and hence said sleeve L¹ will yield to the looper rod D', and permit
the latter to have a rocking motion as well as a reciprocating motion and. an
axial oscillation.
The looper E is probably more clearly illustrated in Figs. 7 to 11, inclusive,
in which it will be seen, that the looper has the forwardly extending bent por-
tion N1 and longitudinal portion 0¹ whose front end is formed with the forwardly
projecting arms P₁, Q¹ and shoulders R' and S', the arms P¹, Q' forming between
them the space T¹, and the arm Q₁ being shorter than the arm P', which extends
forward beyond the arm Q' and first takes the loop, as shown in Fig. 7. The out-
ward bent portion N¹ of the looper E¹ enables the looper to advance along the
right hand side of the line of sewing, and then to turn, as upon the arc of a
circle, to the left hand side of the path of the sewing, and then to recede along
said left hand side, and then to turn, as upon the arc of a circle, to the right hand
side of the line of sewing, and then to move forward, as before, along said side.
The shoulders R¹, S¹ are at the base or inner end of the arms P¹, Q¹, and these
shoulders R¹, S¹, take the loop of the thread and hold it in its proper open posi-
tion, preparatory to the needle passing through the space T¹ between said arms,
and through the loop then held by said arms.
After the needle has passed through the fabric and is about to recede therefrom,
the looper E' moves forward along the right hand side of the line of sewing,
as shown in Fig. 7, and the point of the arm P¹ passes through the loop of the
thread, and thereupon the needle continues to recede from the fabric, and the
looper passes onward along the right hand side of the line of sewing until
the thread is against the shoulders R¹, S, as shown in Fig. 8, and thereupon the
looper, without releasing the thread, makes its axial motion, without ceasing its
reciprocatory motion, and carries the loop over to the left hand side of the
line of sewing, and immediately thereafter starts to move rearward while the
needle at the same time again starts toward the fabric, and, by the time the looper
has carried the loop to a point where it is in line with the needle, the latter
passes through the space T of the looper and enters the loop, as shown in
Fig. 10. The looper continues its rearward motion along the left hand side of
the line of sewing and drops the loop by passing therefrom, as shown in Fig. 10,
the looper continuing its substantially directly rearward motion until entirely
clear of the needle, and thereupon it turns axially while continuing its recipro-
catory motion, so that its arms 1", Q', become turned over to the right to the
position in which they are shown in Fig. 7, and thereupon the looper moves
directly forward, as before, and takes the succeeding loop from the needle.
The reciprocating motion and the oscillating motion of the looper E' is due to
its peculiar connection, herein before described, with the power shaft J, and to
the form of the looper itself, the bend N¹ in the looper permitting the looper to
travel along one side of the line of sewing, then to cross said line to the left,
then to recede along the left hand side of the line of sewing, and then to turn
to the right hand side of the line of sewing and move forward as before, without
any interruption in the reciprocatory motion of the looper. The rocking motion
of the looper rod 1 with the swiveled sleeve L' enables the looper, while moving
forward, to pass over the upper side of the needle so as to take the thread at
the upper side of the needle, and then while turning from the right hand side
to the left hand side of the line of sewing at the front of the needle, to turn

page_text: · downward so as to keep close to the fabric and preserve the proper loop, and
then to recede along the left hand side of the line of sewing close to the fabric,
so that the needle may pass below the arm Pl of the looper and enter the loop.
After the looper, while receding at the left hand side of the line of sewing, has
passed to the rear of the path of the needle, the looper turns upward so as to
cross the line of sewing at a comparatively considerable elevation so as not at all
to interfere with the fabric then being fed toward the looper, and this com-
paratively considerable elevation which the looper then attains is due partly to
the bend in the looper itself, but also to the fact that at that particular time,
the oblique pin H' carried by the disk G¹ is commencing its descent and operates
to turn the looper rod downward to its rear end and upward to its front end,
this rocking motion permitting the looper to ascend entirely clear of the fabric,
while crossing, at the rear end of the stroke, from the left hand side to the right
hand side of the line of sewing. The front end of the looper dips downward
during its forward motion at the right hand side of the line of sewing
because of the fact that at this time the oblique pin H¹ is approaching
and passing its lower position, being then approaching and crossing a
horizontal line parallel with the shaft J, and thereafter, during the turning of
the looper from the right hand side to the left hand side of the line of sewing
the pin H approaches and passes a horizontal line extending transversely through
the power shaft J, and thereafter the looper on its return motion along the left
hand side of the line of sewing, is caused to dip downward, while receding, so
that the needle may pass below the arm P of the looper, and this is accomplished
by reason of the fact that the oblique pin H is then approaching its upper
position at which it is in line with a vertical longitudinal plane through the
shaft J, but, of course, pointing downward and outward at an angle to the longi-
'tudinal line through said shaft.
Thus while the looper has a reciprocatory motion, and an oscillatory motion,
it also is given the special peculiar motion just hereinabove described, by which,
as specified, the looper dips downward while moving forward to take the loop,
and dips downward while receding to permit the needle to enter the loop, and
has a comparatively high elevation while turning at its rear position, from the
left hand to the right hand side of the line of sewing. Under the conditions
named the looper is enabled to operate at a very high speed and always with
certainty and without conflicting with the needle or with the fabric.
of
The
The forwardly projecting portion of the looper E is deflected slightly
toward the right, as illustrated in Figs. 9 and 10, and while said portion
the looper is moving forward at the right hand side of the line of sewing, the
side of the looper faces nearly directly upward and while said looper is receding
at the left hand side of the line of sewing the sides of said portion 0 are nearly
vertical so as to present the space T¹ directly to the point of the needle r.
space of the looper is thus, during the forward motion of the looper at the
right hand side of the line of sewing, substantially vertical, but during the
receding motion of the looper at the left hand side of the line of sewing, said
space T is substantially horizontal. The point of the looper is thus rendered
capable of very easily taking the thread from the needle while said looper is
traveling forward at the right hand side of the line of sewing and of presenting
the loop to the needle in the most satisfactory manner while travelling rearward
'at the left hand side of the line of sewing.
The operation of the various parts of the machine has been described herein-
before and a further detailed description of the same would seem to be unneces-
sary. The work performed by the machine is clearly illustrated in Figures 7
to 10 inclusive and in. Figure 13, in the latter of which it will be observed that
the stitches over-seam the edge of the folded portion of the fabric and hence
prevent any raveling of the fabric and in addition finish the seam in a very
desirable and secure manner. The sewing is performed by what is termed blind-
stitching, and hence while the stitches are apparent on the reverse side of the

page_text: fabric they are not discernible on the obverse side thereof. The machine will
perform the same character of stitching whether the stitches are applied along
the edge of the folded portion of the fabric, as shown in Figure 15, or inter-
mediate said edge and the fold on the fabric, but I prefer to apply the stitches
to the edge of the folded portion of the fabric in order at one operation to finishi
said edge in the manner illustrated in Figure 13.
As a general statement of the operation of the machine it may be said that the
feed mechanism, the needle mechanism, and the looper mechanism all receive
their motion from the power shaft J which will be actuated by any suitable
means. The motion of the power shaft J is communicated to the feed shaft A
through the medium of the eccentric X on said power shaft, the pivoted lever Y
at its upper end engaging said eccentric (as shown in Figures 1 and 6), and
at its lower end connected with the pitman rod Z (as shown in Figure 3), the
clutch lever arm a secured to the front end of the pitman rod Z and hung loosely
from the end of the shaft M, and the dogs b, b, engaged by said arm a and
engaging the rim of the clutch wheel W secured upon the left hand end of the
shaft M. The shaft M has an intermittent motion imparted to it and communi-
cates this motion to the feed cylinder O. The needle shaft t imparts an oscillating
motion to the needle and has imparted to it a rocking motion from the power
shaft through the medium of the eccentric on the power shaft J, the cecen-
tric rod actuated from said eccentric and the crank B', one end of which
is secured upon said shaft t and the other end of which is connected with said
eccentric rod z. The looper-rod D) receives its motion from the power shaft J
through the medium of the inclined arm G₁ secured upon the end of said power
shaft, the pin H₁ carried by said arm G, the swiveled sleeve I' mounted upon
said pin and the yoke J connecting said looper-rod with said sleeve I.
The presser foot P is stationary and the feed cylinder O exerts a yielding
upward pressure against said presser foot. The plate or front section i of the
machine carrying the feed cylinder O is secured in a hinged manner to the upper
end of the main frame arm F and is held in its normal upward position by the
spring Q. By pressure applied downward upon the handle or extension N of
the plate or section I, the feed cylinder Omay be moved downward free of the
presser foot P whenever desired.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a sewing machine, the reciprocatory needle passing transversely to the.
path of the line of feed, the looper, and feed mechanism, combined with means
for actuating the needle and feed mechanism, and means for imparting to the
looper a forward motion at one side of the line of sewing to take the loop from
the needle, then an axial motion across the line of sewing to the other side thereof,
then a receding or rearward motion to present the loop to the needle, and then
an axial motion across the line of sewing to its former position in which it may
again move forward to take another loop; substantially as set forth.
2. In a sewing machine, the reciprocatory needle passing transversely to the
path of the line of feed, the looper, and feed mechanism, combined with means
for actuating the needle and feed mechanism, and means for imparting to the
looper a forwardly and downwardly dipping motion to take the loop at the upper
side of the needle, then an axial motion across the line of sewing to the other
side thereof, then a rearward and downwardly dipping motion to present the
loop to the needle and close to the fabric, and then an axial motion above the
fabric and over the line of sewing to its former position, in which it may again
move forward; substantially as set forth.
3. In a sewing machine, the reciprocatory needle, the looper; and feed
mechanism; combined with means for actuating the needle and feed mechanism,
the rod carrying the looper, the swiveled bearing through which the looper rod

page_text: passes, the arm G¹ revoluble with the power shaft, the pin H¹ carried by said arm,
the sleeve I on said pin, and the yoke J secured to said looper rod and
trunnioned to said sleeve; substantially as set forth.
4. In a sewing machine, the reciprocatory needle passing transversely to the
path of the line of feed, feed mechanism, and means for actuating the needle
and feed mechanism, combined with the looper-rod, the looper having the
laterally turned portion N¹, forwardly projecting portion O, arms P¹, Q¹, and
shoulders R, S, and means for moving the looper forward along one side of
the line of sewing to take the loop from the needle, then axially across to the
other side of the line of sewing, then rearward to present the loop to the needle,
and then across the line of sewing in the rear of the needle to its first position;
substantially as set forth.
to
5. In a sewing machine, the reciprocatory needle passing transversely
the path of the line of feed, feed mechanism, and means for actuating the needle
and feed mechanism, combined with the looper-rod, the looper carried thereby
and having the laterally turned portion N, forwardly projecting portion O¹,
arms P¹, Q, and shoulders R, S, and means for moving the looper forward and
downward along one side of the line of sewing to take the loop from the needle,
then axially across to the other side of the line of sewing, then rearwardly and
downwardly to present the loop to the needle close to the fabric, and then up-
wardly and across the line of sewing, in rear of the needle, to its first position;
substantially as set forth.
6. In a sewing machine, the needle passing transversely to the line of feed,
the looper, and means for actuating the needle and looper, combined with the
revoluble feed cylinder, and means for imparting to said cylinder an intermittent
motion, said feed cylinder having the serrated portion i'and the annular shoulder j
to act upon the fabric; substantially as set forth.
7. In a sewing machine, the needle passing transversely to the line of feed,
the looper, and means for actuating the needle and looper, combined with the
revoluble feed cylinder, and means for imparting to said cylinder an intermittent
motion, said feed cylinder having the serrated portion i, annular shoulder j,
grooved portion and regular surface h; substantially as set forth.
B
8. In a sewing machine, the needle passing transversely to the line of feed,
the looper, and means for actuating the needle and looper combined with the
revoluble feed cylinder, and means for imparting to said cylinder an intermittent
motion, said feed cylinder having the serrated portion i, annular shoulder j,
grooved portion k, regular surface h, and outwardly tapering portion g; sub-
stantially as set forth.
9. In a sewing machine, the needle passing transversely to the line of feed,
the looper, means for actuating the needle and looper, and the presser foot having
the opening and grooved portion m, combined with the feed cylinder, and
means for imparting to said cylinder an intermittent revoluble motion, said
cylinder having the serrated portion and the annular shoulder j, the latter
being adapted to press the fabric into said. grooved portion of the foot; sub-
stantially as set forth.
10. In a sewing machine, the main frame A. having the base B, upwardly
extending rear and front arms C, F, and forwardly extending side arm E, and
the power shaft journalled at the upper end of said arm C, combined with the
shaft H journalled in the upper end of the arm F, the plate or section I secured
upon said shaft H and having the hand-piece N, the shaft M carried by said plate
or section I, the revoluble feed cylinder carried at one end of said shaft M, the
clutch wheel carried at the other end of said shaft M, means for actuating said
clutch wheel from the power shaft, the spring for retaining said plate or section I
normally in its upper position, the horizontal needle shaft and its needle sup-
ported from said arm E, the looper-rod and its looper, means for imparting
motion to said needle shaft and looper-rod from the power shaft, and the rigid
presser foot carried by said arm E; substantially as set forth.

page_text: 11. In a sewing machine, the reciprocating needle passing transversely to the
line of feed, feed mechanism, and means for actuating the needle and feed
mechanism, combined with the looper-rod, the looper having the laterally turned
portion and forwardly projecting and slightly laterally deflected portion, and
means for moving the looper forward along one side of the line of sewing to
take the loop from the needle and with the side face of the front end of the
looper turned substantially upward, then axially across to the other side of the
line of sewing, then rearwardly and with the opposite faces of the front portion
of the looper substantially vertical to present the loop to the needle, and then
across the line of sewing, in rear of the needle, to its first position; substantially
as set forth.
12. In a sewing machine, the main frame A having the base B, upwardly
extending rear and front arms C, F, and forwardly extending side arm E, the
power shaft journalled at the upper end of said arm C, and the substantially
horizontal front plate or section I hinged at the upper end of the front arm F,
combined with the horizontal feed shaft carried by said plate or section I, means
for imparting an intermittent motion from said power shaft to said feed shaft,
the revoluble feed cylinder carried at the end of said feed shaft, the rigid presser
foot to co-operate with the said feed cylinder, the horizontal and longitudinally
disposed needle shaft with its needle, means for imparting a rocking motion to
said needle shaft from the power shaft, the looper-rod carrying the looper and
disposed below said needle shaft, and means for imparting to said looper-rod a
reciprocating motion, a rocking motion and an axial motion from the power
shaft; substantially as set forth.
1000
CHARLES ALMY DEARBORN,
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.