Improvements in Sewing Machines.
Year: 1893

page_text: Date of Application, 31st Jan., 1893-Accepted, 29th Apr., 1893
COMPLETE SPECIFICATION.
[Communicated from abroad by FRANK W. MERRICK, of Rockland Avenue,
Boston, County of Suffolk, State of Massachusetts, United States of America,
Mechanician.]
Improvements in Sewing Machines.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lako & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 :-
My invention relates to that class of sewing machines employing barbed or
hooked work-feeding needles co-operating with which are suitable thread carriers,
to present the thread to the needles, and suitable cast-offs for disengaging the loops
from the needles, machines of this class being usually employed as wax thread
sewing machines although adapted for sewing with dry thread as well; and the
object of my invention is to provide a machine, of the class referred to, which, while
it may be constructed at a minimum cost, will be convenient for use and strong and
positive in operation so that it will be capable of high rates of speed. My
improvements relate more particularly to the presser-foot, feeding, cast-off, and
thread carrier mechanism, and to a pivoted work support, as hereinafter set forth.
In the accompanying drawings,
Fig. 1 is a side view of my improved machine with the framework thereof in
section. Figs. 2 and 3 are sectional front and rear views respectively of the same.
Figs. 4, 5 and 6 are detail views of the feeding mechanism, and Figa. 7 to 11,
inclusive, are detail views of the thread carrier mechanism.
Figs. 12, 13 and 14 illustrate modifications of the thread carrier mechanism.
Fig. 15 is a plan view of the top of the machine showing the presser-foot locking
mechanism.
Figs. 16, 17, 18, and 19 are details enlarged showing the cast-off mechanism.
Figs. 20 and 21 are details showing modifications of the cast-off mechanism.
A denotes the frame of the machino, in the upper part of which is journalled the
driving shaft B, having at its forward end a crank-disk b connected by a pitman e
with the awl-bar C carrying the awl c' and reciprocating in the usual manner in
the head A at the forward end of the arm forming part of the frame of the
machine.
The presser foot mechanism consists of a prosser-foot b' which is mounted in a
presser-bar Dm which is supported by and is vertically movable in the head in the
usual manner. In sewing inachines as ordinarily built, so far as known to me, the
presser-foot-bar is normally pressed and held down by means of a spiral spring
and in order that the foot shall perforin its work, in machines in which the needle
is located under the work-plate, the spring requires to be of considerable strength.
As the presser-foot is forced upward between each stitch to allow the work to be
fed forward, it snaps down again after the feeding operation by reason of the
strength of its spring, and this movement of the presser-foot grently increases the
load on the machine requiring an increase of power to overcome the spring and
requiring the uneven use or expenditure of that power. It also makes a con-
siderable noise which is vory undesirable, especially in rooms where a large number
of machines are employed.
To avoid this, as also to increase the officiency of the presser-foot, I have provided
the following mechanism :
At the top of the frame of the machine I provide two lateral projections or
arms aª b' which may be cast integral with said frame and between these projections

page_text: I pivot a rook-shaft upon centre screws which are tapped into the arms a
and which form a simple, convenient and effective method of securing the rock-
shaft in place. This portion of the construction is shown clearly Fig. 15 of the
drawings. The shaft is rocked by means of au arme which is secured on said
shaft at one end thereof by means of the clamping screw. The other end of said
arme engages the periphery of a cam g' which is fast on the driving shaft B.
For the purpose of holding the end of the arm ein engagement with said cam I
provide a leaf-spring one end of which is bent and inserted in a recess in the end
of said arm as shown and the other end of which is provided with a threaded hole
through which the adjusting screw * passes. The head of the adjusting screw
projects through the top of the frame so that the screw may be turned from above
the frame. A collar is secured on said screw and bears on the under side of the
frame. The tension of the spring h' serves to press the screw upwardly so that its
collar bears against the under side of the frame and to press the end of the arm o
downwardly into engagement with the periphery of the cam g. By this arrange-
ment the force of the spring may be adjusted as will be obvious by turning the
adjusting screw. The precise mothod of securing the spring in place or of adjust-
ing it is not material and any well-known means for effecting this object may be
employed. As the cam g' rotates the shaft c will be rocked, as will be clear. At
the other or forward end of the shaft a short arm or projection P, which is
preferably integral with the shaft, projects laterally therefrom and in the end of
this arm is pivoted a link m, the other end of said link being pivoted to the outer
end of a lever a. The other end of this lever is pivoted between projections 9* on
the sleave through which the presser bar D extends, the upper end of said
presser bar extending normally to within a short distance of the top of the said
sleeve. Between the end of the lever n' and the presser bar and inside the
projection is located a locking block the inner face of which is curved, to
correspond with the curve of the presser bar which is preferably circular in cross-
section, and to adapt the said block to engage said bar. The end of the lever n'
which is adjacent to the block is flattened as shown at so that as the
lever n' is moved on its pivot, the block may be forced and held securely against
the presser bar locking the bar in position. When the presser foot is down on the
work, the rock shaft c is stationary, and the bar is locked by means of the part
which I have just described. When a stitch is completed, and the work is to be
fed forward, the cam * raises the arm against the tension of the spring 4ª thus
rocking the shaft and raising the projection or short arm thus raising the outer
end of the lever n' and freeing the block from the presser bar D. The presser
foot is then free and is subject only to the slight pressure of spring * while the
work is being fed forward. The sleeve surrounds the upper end of the presser
bar and is set in a circular aperture in the frame of the machine. The upper end
of the said sleeve is threaded to receive a hollow threaded cap a and inside the cap
is placed a spiral spring which by screwing down or unscrewing the cap may be
made to bear with greater or less force on the presser bar on the upper end of
which the spring rosts. The purpose of this spring is to keep the sleeve up in
position as also to insure the engagement of the foot with the work after each food
movement and for this purpose a very light spring may be employed as com-
paratively slight force is required and the action of such a spring on the presser
bar will cause no noise. As soon as the work is fed forward the rock shaft c' is
again moved by means of the cam g' and spring and the block is again moved
against the presser bar locking it and holding the presser foot securely against the
work. The lever n which actuates the locking blocks has a longer movement
than is necessary to set the block against the presser bar, to lock the bar, so that
after the bar is locked the additional movement serves to force the locking
mechanism and the presser bar and foot toward the work support, thus firmly
compressing and holding the work. For the purpose of allowing the operator to
raiso the presser foot, by foot or hand power, a lever d' is provided which is pivoted
about midway of its length to the frame of the machine by means of a pivot shown

page_text: "
ate. This lever is of the shape shown Fig. 15, boing curved outwardly at its rear
end to receive a loop or ring of wire or other suitable material by means of
which the lever is connected with a treadle of ordinary construction located con-
veniently to the foot of the operator. The forward end of the lever is ourved
inwardly as shown Fig. 16 and projects underneath a screw stud 9 which is set in
a split collar and serves to clamp the collar securely on the presser bar. The
screw stud 9 projects forward through a slot in the face plate of the machino.
Near the rear end of the shaft o' is secured a downwardly projecting curved arm
the rear end of which extends into the vertical path of the rear end of the lever ".
As the lover d is depressed by the treadle mechanism above referred to, it comes
in contact with the armrocking the shaft e and unlocking the presser bar. The
downward movement of the rear end of said lever causes the forward end of
the lover to move upwardly; as the forward end of said lever is normally a short
distance below the stud by the time the forward end of said lever is in contact
with said stud the rear end of the lever has moved the arm 7ª rocking the shaft c
and freeing the presser bar and the farther upward movement of the forward end
of the lever de brings said end in contact with the stud 9 and operates to raise the
prosser bar and presser foot. When it is desired to raise tho presser foot by hand,
it is only necessary to swing the lever arm a' which is pivoted at a on the face
plate of the machine. The arm a' is projected laterally at its upper end as shown
at a' and is in engagement with the end of the lever d. By swinging the lever a'
therefore, the lever is oporated in the same manner as it is operated when
depressed by the trendle mechanism which is connected with its rear end as
previously described, and the presser foot may therefore be raised by the hand or
foot of the operator with the same facility.
The driving shaft B carries near its rear end the feed-operating cam b' embraced
by a yoke e at the upper end of the feed-lover E jointed at its lower end to an
arin of a rock-shaft journailed on centre screws f' tapped in the lower part of
the frame A and having at its forward end the arin in which the needle bar G
carrying the barbed needle y reciprocates vertically and which needle-bar and
needle are moved horizontally to feed the work as the said arm f'oscillates with
the said rock-shaft F.
h
H denotes a feed regulating lever pivoted on the centre screws tapped in
suitable lugs or brackets on the frame A, said lever boing preferably made in the
form of a yoke, as more clearly shown in Fig. 6, and being provided with a suitable
operating haudle H¹. To the lever H is pivoted by the centre screws A' one end
of a link preferably made in the form of a yoke (as shown in Fig. 6) surrounding
the feed lever E and pivoted at its other ond to an arm or extension of the feed
lever by the centre screws ', the axes of which are co-inoident with the axes of
the centre screws h. The centre screws carried by the feed-regulating lever H
serve as an adjustable fulcrum for the feed lever and by raising or lowering said
centre screws and the end of the link which they engage, by changing the
position of the feed regulating lever by its handle, the relative lengths of the two
arms of said lever E are varied to give different movements to the feeding rock-
shaft F and to the needle bar and needle carried by the arm thereof. The link
or yoke h³ does not move relatively to the arm or feed lever E during the
operation of the machine unless said link is moved by means of the handle H' when
it is desired to vary the length of the feed. The effect of moving this handle is to
raise or lower that end of the link into which the centre screws h² are tapped
and cause the link to swing on its pivot or centre screws hª and thus change the
position of the fulcrum of said levor E and vary the throw of the same. The
centre pins h are sot in snugly and the friction is sufficient to hold the lever I at
any point at which it is set; comparatively little friction is required for this as
there is no strain on said lover H. which tends to move it. The link or yoke h³ is
therefore during the operation of the machine with a given feed movement rigid or
stationary, relatively to the arm e' of the feed lover E and merely serves to connect
said lover with the feed-regulating levor H in such a manner as to permit of the

page_text: adjustment of said regulating lever as the fulorum point at the centre screws. A³
is raised or lowered by means of the handle H' for the purpose of varying the
feed.
The construction above described for varying the feed is much cheaper than a
milled slot for an adjustable fulcrum would be, as the parts may be all of cast metal
requiring no finishing except merely boring and tapping the holes for the centre
screws, and moreover the objections incidental to the use of an adjustable fulcrum
movable in a slot and liable to become loosened and thus get out of adjustment are
avoided, the sorcws 4 on which my feed regulating lever is pivoted being set up
sufficiently tight to hold said lever firmly and securely in any position to which it
may be adjusted.
On the shaft B forward of the feed operating cam b' are the cranks or eccentrics b³/
the former being connected by the pitmani with the rear arm of rock-shaft I,
pivoted on the centre screws and having at its forward end the arm connected
by the link g with the needle bar G and thus serving to reciprocate the said bar
vertically in the arm of the feeding rock-shaft F. The crank & is connected by
the pitman with the rear arm j' of rock shaft J pivoted on the centre screws 7
and having at its forward end the arm connected by the link & with the cast-off
bar K carrying at its upper end the cast-off: The cast-off mechanism is constructed
as follows:
To the upper end of the cast-off bar K is secured a split sleeve D' which is
clamped thereto by means of a screw e. A clamping sorew, see Fig. 16, is set
through the upper end of the split sleeve and by this means the two parts of the
sleeve may be drawn together and made to clamp firmly the two pieces g'h' which
are dove-tailed therein as shown Fig. 17, and which form the adjustable needle-
brace and cast-off. By thus mounting and securing the pieces they may be
adjusted laterally or the piece A' may be adjusted relatively to the piece g' to
accommodate a needle of greater or less diameter. The piece is simply a
straight piece of metal of a shape in cross section which adapts it to be clamped in
the sleeve or holder D' and provided at that end which comes in contact with the
needle with preferably a V-shaped notch or vertical slot. Both sides of the
V-shaped slot bear against the needle and they may bear in the same way against
& needle of larger or smaller diameter. In order thus to accommodate needles of
varying diameter the slot in the piece is made V-shaped by preference; as will
be clear, however, it may be concaved or ourved instead of V-shaped in which case
if the size of the needle be changed another piece ³, having a curved alot of a
size to fit the curve of the needle, must be supplied. The piece g' extends past the
needle and is turned at right angles or substantially so as shown at 2, Fig. 18, to
form the other member of the needle brace or guide as also to form the cast-off
proper. The inner face of this cast-off & comes in contact with the needle and is
straight or flat or convex so that it will bear along one vertical line only against
the cylindrical needle whether said needle be larger or smaller in diameter, that is,
the flat face of the cast-off will, in horizontal section be tangential to the needle. It
is essential that the face of the cast-off next the needle should be vertically parallel
therewith and that when adjusted the cast-off should bear along its whole surface
against the blade of the needle. In order that the face of the cast-off remain parallel
with the blade of the needle, the cast-off must be mounted so as to be adjustable
toward and from the needle along a line at right angles thereto. By the con-
struction shown of the parts which come in contact with the needle it will be clear
that a needle of greater or less diameter may be employed and the parts readily
adjusted thereto, the face of the cast-off adjacent the needle always being parallel
with the blade of the needle. The cast-off proper or part of the piece g'extends
upwardly above the other portion of the piece as shown in Figs. 16 and 17 and
is rounded off or thinned down to a fine edge and rounded point as shown in said
figures. When the needle is at the end of its downward movement the cast-off l
covers the notch or eye of the needle as shown Figs. 16 and 17 and operates to
cast off the thread. By loosening the clamping serowe of the split sleeve D' the

page_text: sleeve and the cast-off may be adjusted vertically as desired and the sleeve may
also be rotated to offect the proper alignment of the cast-off, needle and needle
brace.
In the modification shown Figs. 20, and 21 the top of the split sleeve or holder
is projected laterally around and in front of tho needle in order to afford a suitable
support for the cast-off in front of the needle. This is a convenient form of con-
struction in machines employing more than one needle as I do not consider it
practicable to secure a needle brace and cast-off for each one of two or three
needles, side by side in the same holder. In the modified form shown in these
figures, the needle brace is mounted on one side of the needle and the cast-off on
the opposite side and if three needles are employed the three cast-offs will be
clamped together side by side at one part of the holder by means of the clamping
sorew and the three needle braces will be clamped together side by side in the
other part of the holder by the clamping scrow "The same adjustment,
however, of the braces and cast-offs along a line at right angles to the blade of
the needle is maintained and the adjustment of the parts is therefore easily and
accurately made by operators who are comparatively unskilled.
The cranks are so arranged as to give the proper timing to the needle and
cast-off bars relative to each other, and to the other mechanisms of the machine,
and by the connections of the cast-off bar with the crank 6 the said bar is
positively operated in both directions entirely independently of the needle bar.
The shaft B is provided near its forward and with an eccentric 6' having a
convex surface and surrounded by a strap m provided at its lower end with a
fork in the arms of which are tapped the screws m³ engaging a rooking sleeve N
provided with the depending arm n to the lower end of which is attached the
thread carrier n'. Instead of the eccentric a cam working in a yoke m* as in
Fig. 14 or a crank might be employed. The rocking sleeve N is mounted on a
lever O pivoted on centro screws o tapped in lugs a' projecting from the head A³.
From the foregoing it will be apparent that as the eccentric b is rotated with
the shaft B the thread carrier at the lower end of the arm n will be moved from
the position shown in Fig. 7 to that denoted by Fig. 8, and back again, owing
to the vertical throw of the said eccentric, and will also be moved from the position
shown in Fig. 9 to that shown in Fig. 10 and back again owing to the lateral throw
of the said eccentric, which lateral throw causes the sleeve N to rock on the
vertically vibrating lever O by which it is carried. Thus the lower end of the
thread carrier will be caused to travel in a circular or elliptical path around
the vertical path of the needle (denoted by the dotted lines in Figs. 7, 8, 9 and 10).
to lay the thread in the barb of the needle when the latter is projected up through
the work.
The thread carrier may be adjusted laterally to bring it to its proper position by
variation of the centro screws o on which the levor O is pivoted. To provide for
the adjustment of the rocking sleeve N, I employ a screw of having a head o®
adapted to be seized by the thumb and finger. This screw is tapped in the lever
as shown and is provided with a shoulder o' which bears against the end of the
sleeve N. An arm o" is secured to the underside of the sleeve, the free end of said
arm being bent upwardly at right angles so as to engage the outer face of tho
shoulder and prevent the screw from moving laterally relatively to the said
sleeve N. By turning the screw of a very fine adjustment of the parts may bo
obtained.
It will be obvious that by moving the said sleeve nearer to the fulcrum of the
said lever the throw of the thread carrier due to the vertical movements of the
said lever will be increased so that the horizontal path described by the thread
carrier may be changed from one which is nearly or quite circular to one which
is more or less elliptical, as may be desired to get the best effects according to
the style of needle and kind of thread which may be in use or the class of work:
being done.
To provide for convenient access to the needle and cast-off I prefer to mount the .

page_text: elevated work plate p on a supporting post P which is pivoted at its lower end on
the centre screws p' tapped in lugs in the base of the frame A. This con-
struction permits the pivoted support or post P to be turned down as denoted by
dotted lines in Fig. 2 when a needlo is to be insorted or removed or when for any
reason access to the parts below the work plate is desirod.
The elevated work plate p is mounted in the top of the work supporting-post P,
said plate being dove-tailed or set in a recess therein. The post is split at its
upper end and provided with a clamping screw p' by means of which the two parts
of the post may be drawn together and the work plate firmly olamped between
them. By this method of mounting the work-plate the surface of the plate is
retained intact and free from sorow-holes and the like which is desirable. The
plate may also be readily removed by simply loosening the clamping screw p' and
may also be readily and accurately adjusted relatively to the needle when that is
desired.
The centre screws p' on which the post P is pivoted afford means for a slight
lateral adjustment of said post to bring the needle throat in the work plate into
proper position, the said post being rigidly secured in place by the holding
screws p³ tapped in the part a of the frame A. The adjustable contact screws p
provide means whereby the working position of the post P may be slightly varied
in a plane at right angles to the plane of adjustment afforded by the centre
screws p³.
In the modified form of thread carrier mechanism shown Figs. 12 and 13 the
thread carrier n' is attached to the lower arm of a bell-crank lever N' pivoted on
the screws tapped in a sleeve or ring R which in turn is pivoted on the screws
tapped in the lugs a' of the head A, the outer end of the upper arm of the
lever N' being jointed to the lower forked end m³ of the eccentric strap m so as to
be operated from the eccentric bª in the same manner as the thread carrier horein-
before described. In both forms of my improved thread carrier mechanism the
parts by which the thread carrier is held and by which it is operated are pivoted
in two different planes at right angles, or approximately so, to each other, and are
operated from a single eccentric or equivalent device of which both the lateral and
vertical throws are utilized to move the thread carrier in such a manner as to
make the operative end theroof travel entirely around the vertical path of the
needle.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondent, I declare that what I claim is:-
1. In a sewing machine, the combination with an operating shaft and a feed
actuating device or cam carried thereby, of a feed lover operated by the latter, a
feeding device operatively connected therewith, a feed regulating lever carrying
an adjustablo fulcrum for said feed lever, and a link connecting said fulcrum, with
said feed lover.
2. In a sowing machine, the combination with an operating shaft and feed
actuating device or cam carried thereby of a rock-shaft, a feeding device
operatively connected with said rock-shaft, a feed lover also connected with said
rock shaft, a feed regulating lover carrying an adjustable fulcrum for said feed
lever, and a link connecting said fulcrum with said feed lover.
3. In a sewing machine, the combination with an operating shaft and fued
actuating dovice or cam carried thereby, a feed lever operated by said cam, a feed
regulating lever carrying an adjustable fulcrum, a link connecting said fulcrum
with said lover, a ruck shaft having at its rear end an arm to which said feed levor
is jointed and provided at its forward end with a second arm, a needle carrying bar
carried by the said second arm, and means for reciprocating said needle bar
vertically.
4. In a sewing machine, the combination with an operating shaft and a feed
actuating device or cam carried thereby, of a feed lever operated by the latter,

page_text: and provided with a lateral arm or extension, a feeding device operatively con-
nected with said feed lever, a feed regulating lever carrying an adjustable fulcrum
for said feed lover, and a link connecting said fulcrum with the said lateral arm or
extension of said feed lever.
5. In a sewing machine, the combination with an operating shaft and a foed
nctuating device or cam carried thereby, a rock shaft, a feeding device operatively
connected with said rock shaft, a feod lover also connected with said rock shaft and
provided with a lateral arm or extension, n feed regulating lever carrying an
adjustable fulcrum for said feed lever, and a link connecting said fulcrum with the
said lateral arm or extension of said feed lever.
6. In a sewing machine, the combination with an operating shaft and a foed
device or cam carried thereby a feed lever operated by said cam and provided with
a lateral arm or extension a feed regulating lever carrying an adjustable fulorum,
a link connecting said fulorum with the said lateral arm or extension of said feed
lever, a rock shaft having at its rear end an arm to which said feed lever is jointed
and provided at its forward end with a second arm, a needle bar carried by the said
second arm, and means for reciprocating said needle bar vertically.
7. The combination in a sewing machine with stitch forming mechanism and
means for actuating the same of a presser foot which is positively locked on the
work while a stitch is being formed, substantially as set forth.
8. In a sewing machine the combination with stitch forming mechanism of a
presser foot and its bar, a locking block for engaging said bar to lock the presser foot
and an intermittently operated actuating mechanism whereby said block is forced into
engagement with the presser bar to lock the same while a stitch is being formed
and is released from said bar while the work is being fed forward, substantially as
set forth.
9. In a sowing machine the combination with stitch forming mechanism of a
presser foot and presser bar, a rock shaft and mechanisin for rocking said shaft
and mechanism intermediate said shaft and said presser bar whereby as said shaft
is rocked said bar is intermittently locked and released, substantially as and for the
purposes set forth.
10. In a sewing machine the combination with stitch forming mechanism of a
presser foot and pressor bar, a rock shaft a locking block engaging said bar to lock
the sanic and means intermediate said block and said rock shaft whereby said blook
is operated from said shaft an arm on said shaft for operating the same, a cam
engaging said arm, and a spring for holding said arm in engagement with said
cam, substantially as set forth.
11. In a sewing machine the combination with stitch forming mechanism of a
presser foot and presser bar and means for positively iocking said bar while a
stitch is being formed of a lever engaging said locking mechanism to release the
same and engaging a projection on the presser bar to raise the same after it has
been released and means for operating said lever by the hand or foot of the
operator, substantially as set forth.
12. In a sewing machine the combination with stitch forming mechanism and
means for actuating the same of a pressor bar carrying a presser foot, an adjustably
mounted sleeve or support for said bar whereby when the bar is locked both the
bar and its support may be moved vertically to compress the work, substantially as
set forth.
13. In a sowing machine the combination with a needle and cast-off arranged
below the work plate of the machine, and bars by which said parts are carried, of
a vertical work supporting post pivoted at its lower end to the frame of the
machine and carrying the said work plate at its upper end, the said work supporting
post having a rigid connection with the machine frame at a point removed from its
pivot whereby the said post may be turned down for access to the needle and
cast-off below the work plate when desired and whereby it is held rigidly in place
when in its operative position.
14. In a sowing machine the combination with a work supporting post, split at

page_text: its upper end and recessed to receive the work plate, of a work plate therefor and
a clamping screw, substantially as shown and described.
15. The combination with the needle and its actuating mechanism, of the
holder D' and the needle brace A, said brace being arranged at right angles to the
longitudinal axis of the needle and being adjustable towards and from the needle,
for the purposes and substantially as set forth.
•
16. The combination with the needle and its actuating mechanism of the
holder D' and the cast-off provided with a shank which is arrauged at right
angles to the longitudinal axis of the needle, or approximately so, and which is
adjustable relative to the said needle; whereby the face of the cast-off adjacent
the needlo is parallel with the needle in all positions of adjustment, substantially
as set forth.
17. The combination with the needle and its actuating mechanism, of the
holder D' the needle brace A, and the cast-off k, snid needle brace and the shank
of said cast-off being both arranged at right angles to the longitudinal axis of
the needle, or approximately so, for the purposes and substantially as sot forth.
18. The combination with the needle and its actuating mechanism, of a combined
needle brace and cast-off, the needle brace being on one side of the needle and the
cast-off on the opposite side thereof and that portion of the needle brace which
comes in contact with the needle being V-shaped whereby needles of different
diameters may be employed without changing the needle brace, substantially as
shown and described.
19. The combination with the needle and its actuating mechanism of a cast-off
mounted at right angles to the longitudinal axis of the needle and having the face.
thereof which is next the needle tangential to the circumference of said needle
and vertically parallel to the needle, substantially as and for the purposes set
forth.
20. The combination with the needle and its actuating mechanism, of the needle
brace hº, holder D' and the cast-off bar K, said holder D' having both a vertical
and rotary adjustment on said bar K, substantially as shown and described.
21. In a sewing machine, the combination with a hooked or barbed needle, and
its operating mechanism of a rotating shaft, an occentric thereon, a rocking sleeve
connected with said eccentric, and having a depending arm, a thread carrier
attached to said arm, a pivoted lever on which said sleeve is adjustably mounted
and means for adjusting said lever laterally, substantially as shown and described.
22. In a sewing machine, the combination with a hooked or barbed needle and
ita operating mechanism, of a rotating shaft having an eccentric, a rocking sleeve
having a depending arm, a thread carrier attached to said arm, and a pivoted lever
on which said rocking sleeve is mounted; whereby both the vertical and borizontal
throws of said eccentric will be utilized to move the operative part of said
thread carrier around the vertical path of the needlo, substantially as shown
and described.
23. In a sewing machine the combination with a hooked or barbed needle and
its operating mechanism, a thread carrier and its supporting arm, a support, as O,
on which said arm is pivoted and an adjusting screw whereby the position of said
arm longitudinally of said support and relative to the path of the needle may be
varied, substantially as shown and described.
Dated this 31st day of January 1893.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.