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Патент USA US3034471

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May 15, 1962
Filed Oct. 22, 1956
2 Sheets-Sheet 1
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May 15, 1962
Filed 001;. 22, 1956
2 Sheets-Sheet 2
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Unit-ed rates‘ Patent Gfhc
standard seams (say, zigzag seams) are stationarily in
coroprated on the side of the bracket-arm of the machine
facing the operator. The control disks 28 for the orna
- 3 034 461
Emil Urscheler, Dietikon, Switzerland, assignor to Turissa
Sewing Machine Factory Ltd., Dietikon-Zurich, Swit- .
Filed Oct. 22, 1956, Ser. No. 617,381
Claims priority, application Switzerland Sept. 1, 1956
4 Claims. (Cl. 112-153)
mental seams are disposed onthe opposite side of the
axle 30 and are interchangeable with control disks for
other types of ornamental seams. Said control disks 28
may be placed individually or in packets onto the axle 30.
The control disks 28 can be changed through an opening
31, FIG. 3, in the rear sidewall of the standard 10 and be
10 held by means of a detent 32. Said opening 31 is closed
The present invention relates to a sewing machine hav
ing a zig-zag or ornamental stitching attachment, wherein
the width of the overstitch of the zigzag seam, the posi
tion of the pertinent middle line to the left or right of
a normal line, and ‘also the distance apart of the stitches,
gan be varied by hand or automatically by control mem
Patented May 15, 1962
The sewing machine according to the invention is prin
by a cover '34 which can be turned upwards or down
wards round a bolt 33, being locked in its closed position
by a screw 35. To each of the control disks 28 and 29
there corresponds a feeler pin 26, 27 of the drums 24, 25.
These drums on the swing lever 21 are mounted for rota
tion with a handle ‘36 which is accessible from outside
and mounted on an axle 39 brought out of the machine
standard. The axle 39 carries a helical gearwheel 40
cipally characterized in that at least one handle is in
synchronism operatively connected on the one hand with
an indicating member adapted to play together with a
which meshes with a helical gearwheel 41 on a transverse
scale of composite sewing designs and on the other
sponding driving wheel 45 on an axle 46. The axle 46
has another driving wheel 47 also mounted thereon for
hand with the control members so that, with the indicat
ing member set to one of the various sewing designs, the
axle 42. The axle 42 carries another wheel 43 which is
connected through a chain or belt .drive ‘44 to a corre
simultaneously set to one or other of the control mem
rotation with a corresponding Wheel 49 on the drum axle
23 through a chain or belt drive 48. Turning of the
handwheel 36 will cause the drums 24, 25 with their
bers, through which the selected sewing design will be
feeler pins 26, '27 to turn correspondingly through the
automatically produced as the machine starts to operate.
Further features of the invention will appear from the
intermediary of the said members.
following description and claims, taken in conjunction
with the accompanying drawing, wherein there is shown
connected with the feeler drums, but synchronously also
with an indicating member for setting to the desired sew
mechanism moving the needle and feeding the work is
by way of example one preferred form of embodiment
The setting handle 36, however, is not only operatively
ing design.
incorporating the invention.
In an indicating box 50, on the side-wall of the
bracket-arm of the machine facing the operator, various
35 types of the sewing samples to be made with the machine
domestic type with free work-supporting arm;
are stylistically illustrated (of. FIGS. 1, 2, 2a and 3).
FIFG‘IG. 2 shows the interior of the machine according to
‘FIG. 1 shows a front view of a sewing machine of the
. 1;
b FIG. 2a is a top view of the sewing-design indicating
Said box 50 is formed by a cover screwed to the front
wall and having a gap 51 (FIG. 3). In said cover, cir
cular apertures 52 are provided, into which transparent
FIG. 2b is a plan view of the details for adjusting a 40 disks 53 are inserted.
These transparent disks 53 con
feed dog;
tain, as illustrated in stylistic form, sewing sample designs
FIG. 3 is a part top view of the interior of the machine;
FIGS. 4 and 5 are sectional and top views, respective
ly, of the free Work-supporting arm.
Referring to FIGS. 1 and 2, the sewing machine in 45
a-—m. Behind said disks an indicator 55 is arranged on an
axle 54. ‘The indicator carries at its end a small plate
56 which is coated with ?uoroescent substance (scotch
cludes a casing or standard 1% having a longitudinally ex
tending horizontal main shaft 11 journaled therein in the
usual way. This shaft carries at one end a handwheel
12 and at the other end a crank 13 for imparting in known
manner a reciprocatory movement to the needle bar 15
by means of a guide rod 14. The needle bar 15 is 1ength—
wise displaceably carried in a guide member 16 oscil
light) and moves past behind the sewing, designs one
after the other when the indicator is turned around the
axle 54. The axle 54 of the indicator 55 is in operative
relationship with the drum axle '23 via a train of gears
57, 58, 59, 60, with gears 57 and 58 meshing with each
other and gears 59 and 60 meshing with each other, and
is thus in connection with the rotary knob ‘36. ‘ Conse
quently, when setting the indicator 55 with the ?uorescent
plate 56 to one of the sewing designs a—m (FIG. 2) by
the rotary knob 36, simultaneously also the corresponding
also be oscillated sideways in order to make zigzag seams. 55 feelers 26 and 27 respectively of the drums 24 and 25
will be set to the associated cams so that the set sewing
At 18 the guide member 16 of the needle bar 15 is linked
latably mounted at 17 on standard It) so that the needle
bar 15 can, in addition to its up and down movement,
up to a guide rod 19 being in turn pivoted at 20 to a
swing lever 21 arranged on an axle 22 journaled in the
designs will be automatically produced by the machine
when it is started.
standard 18, transversely to the main shaft 11. Arranged
The pointer 55 may be such as a disk having a round
at the other end of the swing lever 21 is an axle 23 hav
ing two drums Hand 25 mounted thereon. On said
drums 24 and 25, feeler pins 26 and 27, respectively, are
red marking spot 55 thereon, the diameter being of such
radially disposed and staggered both in peripheral and
axial directions, each of said pins cooperating with its
associated control disks 28 and 29, respectively. Circum— 65
size that it can cover the window 52 of the casing 50. In
practice the pointer 55 may consist of a disc which is
secured on the axle 3t) and having the red indicator mark
56 thereon.
The interconnection from the axle 30 to the hand grip
36 is as follows. The pointer 55 is seated on the axle
30 and a toothed gear S?a is also securely mounted on
the axle and meshes with the gear 57. The latter meshes
The control disks are arrangedon a transverse axle 30
with the gear 58 and on the same shaft 22 on which the
having mounted thereon a wormwheel 30a which meshes
with a worm 11a of the main shaft 11, whereby the cams 70 gear 58 is secured there is also a further gear 59 secured
, thereon. The gear 58 meshes with the gear 59 which
are in positive rotary connection with the latter.
latter is connected to rotate the wheel 45 by a chain 48.
Those control disks 29, which serve for making various
ferentially the control disks 28, 29 are provided with
cams capable of being contacted by the related feelers.
The wheel45 rotates the wheel 43 by the chain 44 and
arcs, differing solely from each other radially. In all set
the wheel 43 is secure on the shaft 42. The worm .gear
. 471 (FIG. 3) is mounted on the shaft 42 and which is in
mesh with the worm gear‘ll? and the latter is securely
tings of the feeler 88 on the cam section 87a of the con
trol disk 87, the main feeler 68 for the spacing of stitches
is disengaged from its corresponding control disk 28, i.e.
itno longer tracks the controldisk associated with it.
mounted on the shaft 39 with the hand’wheel 36 secured
on the 'end of the shaft 39.
When the feeler 88 engages the cam section 87b, the
main feeler 68 can track its associated control disk to
The sewing ‘designs a, b, 'c and k, I are ‘standard seams
in the above-mentioned sense. The stationarily built-in
adjust the distance ‘between the stitches; Thereby a
varying length of stitch is set, the handle 77 not then
design d corresponds to an ordinary lockstitch seam. For 10 being actuated.’ The cam'section 87b Will only cooperate
such seam no control disk is provided, but a ?xed stop
with the 'feeler 88 when the sewing design films to be
‘61 (FIG. 2) mounted on the bearing support 62 for the
performed. The cooperation ‘of the feeler 88 with the
axle 30, as by means "of screws. '
cam section 87a serves for executing the sewing designs
The :sewing Zdesigns e--i are pure decorative stitches, ' a, b, c, d, e, g, h and i, the operator being able to adjust
to which the interchangeable cam disks 28 correspond.
15 the stitch length or the spacing of ‘the stitches by ‘means
The ‘axle 46, as intermediate between'the chain-drive
of the handle 77. The camsections 87c, ‘87d, 87:: of
axles 42 and 23,ris not stationary, 'but'carried by a lever
the auxiliary control disk 87 cooperate with the vfeeler
cams 29 correspond to these sewing designs. The sewing
. 63, oscillating about its pivot axle :64. The axle 64 rests
on a ‘bracket '65 ?rmly secured to the standard or casing.
88 when ‘the seams k, l and m have to be carriedout, say,
for sewing buttonholes. The design k shows the lefthand
The depending arm of the lever 63 vcomes within the 20 side of the'buttonholing with ?xed ‘length of stitch, which
‘range *or’ the free ‘extremity of the axle 39 of the setting
is obtained by adjustment of shaft 72 from the feeler 88.
handle 36. The axle 39 is ‘spring (66) ‘biased and can.
Design l'shows the ibarrings'and design m the righthand
not only be turned but also be displaced en'dwise in the
buttonholing. All three seams k, land ‘mt are’sewn through
stop bearings 37, ‘38 with'pin-and-slotguiding 39a, 39b.
the control by means of the auxiliarycontrol disks 87 and
The ‘axial ‘movement of the setting handle serves, when
feeler 88 to a de?nitely set spacing of stitches. The lever
changing from one sewing design to another, to raise
67a, 67b is biased by a spring 89 which tends, to urge it
j» ‘the feele'r pins 26, 27 out of the cams of the ‘associated
along with the feelers '68 and '88 against the related con
‘control disks and, upon suitable rotation of the' drums,
trol disks.
. 7'
to cause other feelers 26, 27 pressing against the cams
The action of the machine shall be made more clearly
'or ‘control disks associated therewith. This is achieved
understood hereinafter by explaining the production of
. in such a 'way ‘that; 'on pressing-in the setting handle 36,
the various sewing design.
the end of said bar'39 causes the lever 63 to swing
Suppose the sewing design b has to be performed (‘de?
nite zig-zag seam). For this, the'operator turns knob 36
until the ?uorescentrplate 56 of the indicator 55 appears in
somewhat'clockwise about its axle 64 against the action
‘of the spring '66. Thus also “the intermediate axle 46
with the related driving wheel as well as the axle 23 35. the indicating box 50 at the sewing design b. By this turn
with the drums 24, 25 will be rocked about the swing
ing of knob 36 also the corresponding feeler 27lof the drum
lever ‘axle 22. By this slight rocking the fecler pins 26, 27 .
25 has lowered onto the corresponding 'stationarily built-in
“get clear of the control disks." If anew sewing design
control disk 29. When starting the machine, a vseam ac
has to beset, the handle 36 should 'be turned in'the
cording to the sewing design b will be made corresponding
pushed-in condition until the indicator 55 is set to the
to this setting. lfa change has to be made ‘to another
new sewing design. Then the handle 36 is released so
sewing design, say, to f, the feeler 27 that makes contact
that'the :bar '39. moves back, the feeler pins of the’drum
with the control disk for the seam b has ?rst to be with
' again engaging the new control disksvia lever 63.‘
drawn therefrom. This is achieved by pushing-in the
' For carrying out seams in accordance with the designs
handle 36 whereby—as described ' hereinbefore—the
"g, ‘h, '1', k, l, m, it is necessary to have also the control 45 drums 24, 25 with their feeler pins are. raised from the
of the ‘feed dog,’ besides'that of the needle rbar, in View
control disks. Thereuponthe handle 36, While'still in
‘the pusheddn position, is ‘turned until the point mark
of the corresponding alteration of the distance between
the stitches. The mechanism ‘for adjusting the feed dog
56 stands behind the sewing design 1‘. Upon release of
the handle, the feeler‘26 corresponding to the design 1‘
The same axle '22 which carries the drum swing-lever 50' engages the corresponding interchangeable control disk
21 has ‘also mounted thereon ‘a’ double-armed lever 67a,
28. ' 'Butsimultan'eously the feeler, 88 of the lever 67a,
67b. The arm 67a includes a feeler pin ‘68' cooperating
67b has fallen, onto the cam portion ‘87b of the auxiliary
withonegof the interchangeable control disks 28. The
, lever
> ‘control disk 87, whereby the main feeler' 68 can make
67b, has pivoted to it a rod 69 which, via a
knee'ilever770 swivably mounted on ‘axle '39, is connected
‘to a rocker 71 rigid with the axle 72 for adjusting the
contact with its cam disk. Thereby the adjustment shaft
‘72 for the feed 'dog will be positioned correspondingly
through the members 69, 70 and 71.’ Now, whenls‘tart
‘feed dog. ' Therooker 71 islslotted and-has at both sides _
ing the machine, the corresponding sewing design '1‘ will
of the slot rungon faces 71a. 7 The knee-lever 70 engages '
be performed.
with a pin 70:; the slot in the rockerv71. Via a wormgear
' For sewing buttonholes one proceeds as follows‘:
73, 74 on the shaft 72 for adjusting the spacing of stitches, 60 1 On setting the pointer mark 56 ?rst to the design k, a
a ?uorescent pointer 75 ‘can be turned behind a scale on
corresponding feeler 27 will'be' urged against its associa
a transparent disk. Said’ shaft '7-2'1-has ‘also mounted
ated control disk 29. In this position of the parts, the
thereon a handle 77 freely accessible to the operator. At
auxiliary feeler 88 is urged by the spring 89 against the
its ‘other end, said shaft 72 isin connection *via spur
jwheels 78, 79 (FIGS. 2, 4 and 5)’ with a link guide '80
wherein a ‘block 81 can slide, the'latter being in turn
V cam section 87c of the auxiliary control disk 87 to thus '
connected to the push fork 83 (FIG. 4) by means of a
screw 82. V The feed dog 84 is adjustable in a manner 7
set the corresponding seam, whereby through the posi
tioning of the feeler 88 onto the cam section'87e the
setting shaft 72 adjusts the feed dog to a certain de?nite
amount of stitch length. 1At the righthand side of'sew
known per‘ se from the link guide 80 ‘through the ‘inter
ing according to design In, the same operation is repeated,
' mediary of thest'roke shaft 85 and sliding shaft 86.
70 except that'then the feeler 88 falls onto the cam section
V 7 Toperform certain'seams, an auxiliary control disk 87
‘870, thus setting again to a constant length ofstitch. For
i's'mounted on the intermediate axle 46, cooperating with
sewing the button hole according to design I, the opera
a ‘teller '88 on arm 67b of the feeler lever 67a, 67b.
tion is correspondingly repeated, except vthat’ then the
,Circumferendally the auxiliary control disk ‘87 comprises
auxiliary feeler engages the cam section 87d of the
' 'var'io'us cam sections 87a, 87b, 87c, 87d,.87e,' all circular 75 auxiliary control disk '87.
What I claim is:
1. A sewing machine with zigzag and other pattern at
tachments to control and set a needle mechanism and a
material advancing mechanism, comprising a casing, a set
ting member in the form of a knob mounted on the cas
in turn is operatively connected with the needle mech
anism, the feeler drum being operatively connected with
the sewing ‘design indicating member and also with the
knob accessible to the operator.
3. A sewing machine according to claim 1, in which
ing, an indicator mounted in the casing, a plurality of
the drum is mounted on an axle and connected by gears
to a shaft projecting out of the casing of the machine at
gears in the casing to interconnect the knob with the in
the side facing the operator, and having the indicating
dicator, a scale of composite sewing designs mounted
member provided with a ?uorescent mark movable behind
on the casing, a feeler for setting the needle mechanism
to obtain a stitch of ?xed amplitude connected with the 10 a scale of circularly disposed transparent disks bearing
the various sewing designs.
needle mechanism, a feeler for the material advancing
4. A sewing machine according to claim 1, in which
mechanism connected thereto, means connecting the knob
transmission members are provided so that the setting
with the feelers whereby the needle mechanism and the
material advancing mechanism are simultaneously set to
member is connected to the feeler drums by the trans
perform a desired and set sewing design as indicated by
mission members, the actuation of the setting member
causing the feeler drums to be brought into and out of
the indicator on the scale, control members in the form
of rotary disks for producing ornamental seams disposed
engagement with the control members.
adjacent each other and provided with peripheral cams,
References Cited in the ?le of this patent
at least one drum having radially staggered pins, each of
sm'd disks being selectively operable with one of the ra 20
dial pins, the staggered feeler pins being selectively
caused to track their associated control disks upon the
rotation of the drum, the control disks for the ornamental
seams adapted to be exchangeably arranged for control
disks of other types of ornamental seams, and means 25
connected to the feelers for the needle mechanism and
the material advancing mechanism to carry out the de
sired sewing design as governed by the cams.
2. A sewing machine according to claim 1, wherein a
swing lever is connected with the feeler drum and which 30
Rader _______________ ._._ Dec. 21,
Van Hamersveld ________ __ July 7,
Carter _______________ __ Feb. 11,
Casas-Robert et a1 _____ __ Sept. 29,
Urscheler _____________ ._._ July 24,
Gegauf _____________ ._._ Apr. 29, 1958
Italy _________________ __ Jan. 15, 1949
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