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Патент USA US2131007

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sept- 20, 1938'
H. HACKLANDER
'
2,131,007
FABRIC GUIDE FOR SEWING MACHINES
Filed Sept. 12, 1936
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INVENTOR:
I
712L115 imzklandzi;
BY
’
ORNEYS. _
,SePt- 20, 1933'
H. HACKLANDER 4
2,131,007
FABRIC GUIDE FOR SEWING MACHINES
Filed Sept. 12, 1936
3 Sheets-Sheet 2
IN VEN TOR:
715L123 imckmnder,
BY
-
'
/
ORNEYS.
SePt- 20, 1938-
H. HACKLANDER
2,131,007
FABRIC GUIDE FOR SEWING MACHINES
Filed Sept. 12, 1956‘
5 Sheets-Sheet :5
WITNESSES:
INVENTOR:
v
772L215 i’?wklander
BY
7’
A TORNEYS.
Patented Sept. 20, 1938
2,131,007 7
UNITED STATES PATENT OFFICE
2,131,007
FABRIC GUIDE FOR ‘SEWING MACHINES
Hans Hacklander, Tinley Park, Ill., assignor to
Union Special Machine Company, Chicago,
111., a corporation of Illinois
Application September 12, 1938, Serial No. 100,428
15 Claims. (Cl. 112-20)
This invention relates to fabric guides for
Figs. X, XI, XII, and XIII and XIV are views
sewing machines; and it has reference more corresponding to Fig. 11, showing how, in con
especially to uncurling guides of the type dis
sequence of the present improvements, the guide
closed in U. S.- Patent No. 1,917,711 granted to may be swung from active position to loading
5 me jointly with Frederick F. Zeier on July 11, position by engaging it directly with the ?nger, 5
.1933, for cup feed sewing machines such as are and from loading position to fully retracted po
uied in seaming full-fashioned hosiery and the sition and back with the aid of the latch-con
li e.
In- the patented construction, the manipula
tion of the guide can be effected only through a
co-pivoted ?nger lever which controls a latch
member capable of selective locking engagement
with spaced stop notches in the guide circum
ferentially of its pivot axis, to hold said guide
1.") either part way retracted from the feed cups
in position for loading, 1. e., for starting the
fabric in the guide, or fully retracted for con
venience of access to the stitch-forming instru
20
mentalities of the sewing machine.
My invention has for one of its aims, to make
it possible to retract the guide from its normal
position in relation to the stitch-forming instru
mentalities and the feed cups of the sewing ma
chine and to return it, without necessitating the
aid of the latch control lever, and at the same
time insure its being effectively held in either
position.
'
Another object of my invention is to secure
the above advantages with latch mechanism
:30 which can be re-arranged or adjusted so that
the’guide may be manipulated as heretofore,
solely by means of the latch control lever, if its
actuation in this manner is preferred by the
operator of the sewing machine.
:'5
One way in which the aforementioned advan
tages can be readily attained in practice will be
come apparent from the following detailed de
scription of the attached drawings, wherein Fig.
I is a fragmentary view illustrating in part, the
~10 front elevation of a cup feed sewing machine
(which, for example, may be of the kind shown
in U. S. Patent No. 1,995,092 granted to N. V.
-Christensen on March 19, 1935) provided with
an uncurling guide conveniently embodying my
~.-3 invention.
Fig. 11 is a side elevation of the organization
as viewed from the left of Fig. I.
Fig. III is a side elevation of the guide alone
as viewed from the right of Fig. I.
50
Fig. IV is a horizontal sectional view taken as
indicated by the arrows IV—IV in Fig. I.
Figs. V, VI, VII and VIII are perspective views
of various component parts of the guide.
Fig. IX is a reverse perspective view of the
part shown in Fig. VIII.
trolling ?nger lever; while
Figs. XV, XVI, XVII, XVIII, XIX and XX are
corresponding views with the latch mechanism 10
re-arranged so that the guide can be swung to
its various positions, as heretofore, solely by
manipulation of the detent by the controlling
?nger lever.
.
In these several illustrations, the guide is 15
generally designated by the numeral I, and shown
as having a multi-partite arm which is pivotally
connected to the overhanging upper portion 2
of the sewing machine frame wherefrom the
feed cups 3 are suspended in horizontal, tangen- 20
tially-contacting relation. The means (not
shown) for driving the feed cups 3, and the
stitch-forming instrumentalities (likewise not
shown) of the machine may be like those of the
Christensen patent supra. At the bottom or 25
swinging end of the arm I is the center blade
4 of the guide which is secured by rivets 5 to
the lower end of a medial component 6 of said
arm, said component being in turn secured at its
top to the wing ‘l of a collar component 8 by 30
a pair of screws 9. At opposite sides, the medial
component 6 of the arm I has spaced, outwardly
projecting, pierced ears I0 which receive pivot
pins ll whereto the uncurling members I2 are
secured by set screws 13. A coiled spring I5 35
(Fig. I) passing through a clearance opening in
the medial component 6 of the arm I, and in
compression between the upwardly and outward
ly extending grasp portions I6 01' the uncurling
members I2, serves to yieldingly maintain said 40
members in clamping engagement with the op
posite sides of the center blade 4. From Figs.
1H and V, it will be observed that the shanks of
the screws 9 pass through transverse slots II
in the medial component 6 of the arm i; and 45
that the latter is provided with a rearward tongue
or rib I8 which ?ts into a corresponding trans
verse groove IS in the wing ‘i of the collar com
ponent 8. As a consequence of this arrange
ment, the guide can be adjusted toward or away 50
from the feed cups 3 in the vertical plane through
the entrant bight of said cups. The guide is
pivotally supported from the projecting portion
2 of the machine frame by means of a bracket
comprehensively designated by the numeral 20, 55
2
2,181,007
which consists of two parts respectively desig
nated by the numerals 2| and 22 in Figs. I and
III, said parts being separately illustrated in
perspective in Figs. VII, VIII and IX. The part
tions of the disk 45. and a pair of teeth 63, 64
intervening said notches at one side of its peri
2| constitutes the base member of the bracket
20, and as shown, has the form of a plate with
a longitudinal rib/23 centrally of its back for
engaging a horizontal groove 25 in a pad 26 on
tooth 64 on the other hand, has a sloped cam
edge 64a only on one side, while its outer edge is
recessed part way of its length as at 65 to a
the machine frame portion 2, see Figs. I and II.
10 A screw 21 whereof the shank passes through a
longitudinal ‘slot 28 in the bracket base member
2| and threadedly engages into the pad 26, serves
to secure said member to the machine frame
'15
with provision foradjustment so that the cen
ter blade 4 of the guide can be accurately posi
tioned in the vertical plane through the entrant
bight of the feed cups 3. The other part 22 of
the bracket 20 (Fig. VII) has the form of a
bearing member with a horizontal journal boss
29, and with a forwardly o?set upward extension
30 which is vertically grooved at the back as at
3| and provided with a slot 32. The grooved
extension“ of the bearing member 22 engages
phery. The tooth 63, it will be particularly noted.
has oppositely-sloped cam edges 63a, 63b. The
depth corresponding to that‘of the notches 52,
53 of the stop disk 45.
Pivoted at 66 to a rearwardly and upwardly 10
extending arm projection 61 on the bearing com-v
ponent 22 of the bracket 26 is a latch 68 which
overlies the two disks 45, 60, and which is pro
vided with a tooth end adapted to engage the
notches 'of the stop disk 45. By means of a tor 15
sion spring“, the latch member 68 is yieldingly
urged toward the disks 45 and 66.
The use of myv improved uncurling guide with
the stop disk set in relation to the arm i as
shown in Figs. I-III is as follows:
Swinging of the guide from its active vertical
position of Fig. 11 to the loading position of
Fig. XI is intended to be effected by engaging
over a vertical tongue or rib 33, see Figs. VIII . the arm I from behind with a ?nger after the
25 and IX, at the front of the bracket base mem
ber 2i, which latter is drilled and tapped as at
manner shown in Fig. X. In this movement, the 25
latch 68 will be elevated out of the notch 46 by
camming action with the curved side edge 48a
of the tooth 48 of the stop disk 45, and, as the
movement is continued, said latch will drop
into the notch“ as shown in Fig. XI to hold 30
35 to receive the threaded ‘shank of a securing
screw 36 shown in Figs. I and III. The bracket
"base member ‘2| is further provided at one end
30 with a laterally and forwardly offset vertical boss
31 which is tapped to receive the shank of an - the guide in angular loading position. Incident
adjusting screw 38 whereof the head is circum
to the rotative shift of the stop disk 45 as just
ferentially grooved as at 39 to engage a clevised described, the pins 55, 56 coact with the edges
projection 43 on the upward extension 36 of of the notches GI, 62 in the disk 60 and cause
35 the bearing member 22 of the bracket 20.
Thus,
by ?rst loosening the screw 36 and thereupon ad
justing the screw 38, it is possible to raise or
lower the guide as a whole in relation to the
feed cups 3.
40
Having now described the guide insofar as it
generally resembles the one disclosed in my patent
hereinbefore referred to, I will now proceed to
those features which characterize my present
invention. ' By means of a set screw 42 (Fig. I),
45 the collar component 6 of the arm I is secured
to one end of a sleeve 43. As shown in Figs.
I, IV, and V, the sleeve 43 is journaled in the
boss 28 of the bearing bracket member 22, and
at its opposite end formed with a disk-like head
50 45 which will hereinafter be referred to as a
"stop disk.” As shown, the stop disk 45 has a
1 pair of relatively-deep contiguously disposed,
peripheral notches 46, 41 which are spaced by a
cam tooth 48 with curved side edges 48a, 48b;
55 and diametrically opposite to said notches, said
disk has another pair of deep notches 49, 5'0
spaced by a tooth 5| whereof the side edges are
straight and substantially radial.» Intermediate
the notches 46, 56 and 41, 49, the stop disk 45
60 is moreover formed with shallower peripheral
notches 53, 52, respectively; and on its outer face
substantially half-way between the notches 4‘6,
53 and 49, 52, with diametrically opposite stud
projections 55, 56. Rotatively free within the
65 sleeve .43 is an axial shaft 51 having an integrally
formed or permanently attached latch-control
lever 58 at one end thereof. As shown, this lever
56 lies in the plane of the medial component 6
of the arm I, and is forwardly offset to clear said
70 arm component, and moreover, terminates in a
roughened ?nger projection 59. Disposed > in
abutting relation to the stop disk 45 and secured
to the opposite end of the shaft 51, is a latch
control disk 66, which has diametral circum
ferential notches 6|, 62 to clear the stud projec
the latter to be shifted concurrently with the
disk 45 so that the tooth 63 will under-ride the
end of the latch member 68 concurrently with
the tooth 48 of said stop disk. Further up
ward movement of the guide from its angular
loading position of Fig. XI to its fully retracted
40
horizontal position of Fig. XII for convenience of
access to the stich-forming instrumentalities
of the sewing machine, is effected by means of
the ?nger lever 56 in the manner shown in Fig.
XII. In moving the lever 58 from‘ the position 45
shown in Fig. XI, it will be seen that the disk
68‘ is rotated counter-clockwise with incidental
lifting of the end of the latch member 68 from
the notch 41 in the disk 45 by thecam edge 64a
of the disk 66. With continued movement of‘ 50
the lever 58, the edges of the notches 6|, 62 of
the disk 66 eventually engage the studs 55, 56
of the disk 45, and cause rotation of the latter
with the disk 66 until the notch 52 in said disk
45 is engaged with the latch member 68, as 55
shown in Fig. XII. The return of the guide is
eifected in a converse manner, that is to say, the
lever 58 is pressed downward as shown in Fig.
XIII and upon the induc< d rotation of the disk
66 in clockwise direction, the latch member 68 60
is forced out of the notch 52, and the disk 45 com
pelled to rotate the same direction through co
action between the edges of the notches GI, 62
in the disk 66 with the studs 55, 56 on said disk
45. At the end of the‘ last-described step, the 65
end of the detent will again drop into the notch 4'!
of the disk 45 to hold the- guide in the loading
position of Fig. XI. To restore it to its active
position from the loading position, the guide is
moved by pressure of a ?nger upon the arm I as 70
shown in Fig. XIV, incident to which the end of
the latch 68 will be forced out of the notch 41
by the rounded side edge 4% of the tooth 48,
and after over-riding said tooth, will drop into
the notch_ 46. During operation of the guide 75
9,131,007
as just explained, it will be observed that the
notches 49, 50 in the disk 45 do not function in
any
way.
-
.
When it is desired to manipulate the guide as
heretofore, solely by means of the ?nger lever 58
the stop disk 45 is arranged or adjusted one
hundred and eighty degrees from its ?rst position
[in relation to the arm I as shown in Fig. XV.
In order to swing the guide from the normal or
10 activeposition of the Fig. XV to the loading posi
tion shown in Fig. XVII, with the disk 45 reset
as just explained, the lever 58 is lifted as shown
in Fig. XVI. Due to the anti-clockwise rotational
movement thus imparted to the disk 80, the cam
'15 edge 83a of the latter displaces the latch member
68 from the notch 49 before engagement takes
place- between the pins 55, 56 on the disk 45 and
the edges of the notches GI, 62 in said disk 60 to
rotate the disk 45 and thereby move the guide.
As the upward movement of the lever 58 is con
tinued with concurrent rotation of the two disks
45, 60 the end of the latch member 68 eventually
drops into the notch 50 as shown in Fig. XVII
to hold the guide locked in its loading position.
To move‘ the guide from the loading position of
Fig. XVII to the fully retracted position of Fig.
XVIII, the ?nger lever 58' is further lifted as
shown in Fig. XVIII, with the result that the end
of the latch member 68 is withdrawn from the
.30 notch 50 by the camming action with the edge
40
CI 2,1
60
75
3
1. In combination, a guide for directing fabric
to the stitch-forming instrumentalities of a sew
ing machine; means for supporting the guide for
movement to and from operative position; and
camming latch means for holding the guide in
active and retracted positions with capacity for
yielding under pressure exerted directly upon the
guide to permit movementithereof from one posi
tion to another.
2. In combination, a guide for directing fabric 10
to the stitch-forming instrumentalities of a sew
ing machine; means for supporting the guide for
movement to and from operative position; a stop
member connected to the guide and having spaced
notches with cam teeth intervening; and a spring
urged latch cooperative with the individual
notches of the stop member to hold the guide in
active and retracted positions, but permitting
movement thereof vfrom one position to another
by exertion directly upon the guide of suiilcient
e?ort to eifect dislodgment of the latch by the
cam teeth.
'
3. In combination, a guide for directing fabric
to the stitch-forming instrumentalities of a sew
ing machine; a support to which the guide is
pivoted for movement to and from operative
position; a stop member connected to the guide
and having spaced notches with cam teeth inter
vening; and a spring~urged latch cooperative with
the individual ‘notches of the stop member to 30
64a, of the disk 60 before the pins 55, 56 are again - hold the guide in active and retracted positions,
engaged by the edges of the notches BI, 62 of but permitting said guide to be swung from one
the disk 60 for impartation of concurrent coun
position to another by exertion directly upon the
ter-clockwise movement to the disk 45 and the guide of sumcient effort to effect dislodgment of
guide until the notch 53 in'the disk 45 is brought the latch by the cam teeth.
35
into position for engagement by the latch mem
4. In combination, a guide for directing fabric
ber 58 as shown in Fig. XVIII to hold the guide to the stitch-forming instrumentalities of a sew
in its fully retracted horizontal position. Here ing machine; means for supporting the guide for
again, in order to bring the guide back from its movement to and from operative position; a latch
fully retracted position to its loading position to for holding the guide in active and retracted 40
normal or active position in respect to the feed positions with capacity for yielding under pres~
cups 3, the preceding operation is reversed. This sure exerted directly upon the guide to permit
is accomplished by pressing down the ?nger lever movement of the guide from one position‘ to
58 as shown in Fig. XIX whereby the end of the another; and separate means whereby the latch
latch 58 is forced out of the notch 53 by the disk may be released and the guide moved from one
60 before re-engagement takes place between position to another.
the studs 55, 56 and the edges of the notches BI,
5. In combination, a guide for directing fabric
62 of said disk to rotate the disk 45 and the to the stitch-forming instrumentalities of a sew
guide in the same direction. As the concurrent ing machine; means for supporting the guide for
movement of the two disks continues, the end movement to and from operative position; a stop
of the detent 68 falls into the notch 50 of the member connected to the guide and having spaced
disk 45 to lock the guide in the loading position. notches with cam teeth intervening; a spring
Finally, to restore thelguide to its normal or ac— urged latch cooperative with the individual
tive position, the lever 58 is again pressed down
notches of the stop member to hold the guide
wardly as shown in Fig. XX, and through at
in active'and retracted positions, but permitting
tendant clockwise rotation of the disk 60, the end said guide to be moved from one position to
of the latch member 68 is dislodged from the another by exertion directly upon the guide of
notch 50 of the disk 45 by the cammed edge 63b su?icient pressure to effect dislodgment of the
of said disk 60 before engagement takes place latch by the cam teeth; and a separate means
between the studs 55, 56 with the edges of the whereby the latch can be withdrawn from the 60
notches GI, 62 in said disk 60 to e?ect concurrent stop member and the guide moved from one posi
rotation of the disk 45 and the guide. Eventual
tion'to another.
ly, during continuation of this movement, the
6. In combination, a guide for directing fabric
end of the latch member 68 will drop into the to the stitch-forming instrumentalities of a sew
notch. 49 of the disk 45 to re-lock the guide in ing machine; means for supporting the guide for
its normal or active position. It will, of course, movement to and from operative position; a stop
be apparent that the guide can be swung from member connected to the guide and having spaced
its active position to its fully retracted position notches with cam teeth intervening; a spring
and vice versa by one movement without neces
urged latch cooperative with the individual
sity for detaining it in its loading position.
notches of the stop member to hold the guide
Since the functions of the guide are otherwise in active and retracted positions, but permitting
exactly the same as in Patent No. 1,917,711, it said guide to be moved from one position to
has not been deemed necessary to describe them another by exertion directly upon said guide of
herein.
suf?cient eifort to eifect dislodgment of the latch
Having thus described my invention, I claim:
by the cam teeth; and separate means having 75
2,181,097
limited independent movement relative to the to effect dislodgment of the latch by the cam
guide whereby the latch member may be with-, tooth aforesaid.
drawn from the notches of the stop member and
12. In combination, a guide for directing fabric
said guide shifted from one position to another. between the feed cups of a cup feed sewing ma
'7. In combination, a guide for directing fabric ' chine; means pivotally supporting the guide for
5
to the stitch-forming instrumentalities of a sew
movement to and from active position; a stop
ing machine; a support to which the guide is disk connected to the pivot axis of the guide and
pivoted for movement to and from operative having a pair of contiguousiy-positioned first and
position; a stop member connected to the guide second notches with a cam tooth intervening,
10 and having spaced notches with cam teeth in
tervening; a spring-urged latch cooperative with
the individual notches of the stop member to
hold the guide in active and retracted positions,
but permitting said guide to be swung from one
15 position to another by exertion of su?lcient effort
directly upon the guide to effect dislodgment of
said latch by the cam teeth; and separate means
having limited independent movement on the
pivot axis of the guide whereby the latch may
20 be withdrawn from the notches of the stop mem
ber and said guide swung from one position to
another.
8. In combination, a guide for directing fabric
to the stitch-forming instrumentalities of a sew
25 ing machine; a support to which the guide is
pivoted for movement to and from operative posi
tion; a stop disk connected to the guide and hav
ing spaced notches with cam teeth intervening;
a spring-urged latch cooperative with the indi
30 vidual notches of the stop disk to hold the guide
in active and retracted positions, but permitting
said guide to be-swung from one position to an
other by exertion directly upon the guide of suffi
cient effort to e?ect dislodgment of the latch by
35 the cam teeth; a latch control disk mounted on
the pivot axis adjacent the stop disk and capable
of limited movement independently of said stop
disk; and a ?nger lever connected to the latch
control disk whereby the latch may be first with
40‘ drawn from the notches of the stop disk and the
guide thereupon swung from one position to
another.
.
9. In combination, a guide for directing fabric
between the feed cups of a cup feed sewing ma
45 chine; means pivotally supporting the guide for
movement from active vertical position in sus
pension to a retracted position and vice versa;
and camming latch means for holding the guide
in active and retracted positions with capacity
50 for yielding under pressure exerted directly upon
the guide to permit movement of said guide from
one position to another.
10. In combination, a guide for directing fabric
between the feed cups of a feed cup sewing ma
55 chine; means pivotally supporting the guide for
movement from active vertical position in sus
pension to a retracted angular loading position
and a third notch spaced from the 'others; a 10
spring-urged latch cooperative with the individ
ual notches to hold the guide in active, loading
‘and fully retracted positions with capacity for
being swung between its active and its loading
position determined by the first and second 15
notches by exertion directly upon said guide of
sui?cient effort to effect dislodgment of the latch
by the cam tooth aforesaid; and separate means
for first dislodging the latch from the second
notch of the stop disk when the guide is in load 20
ing position, and then swinging said guide to its
fully retracted position determined by the third
notch.
13. In combination, a guide for directing fabric
between the feed cups of a cup feed sewing ma 25
chine; means pivotally supporting the guide for
movement to and from active position; a stop
disk connected'to the pivot axis of the guide and
having a pair of contiguously-positioned first and
second notches with a cam tooth intervening, 80
and a third notch spaced from the others; a
spring-urged latch cooperative with the indi
vidual notches to hold the guide in active, loading
and fully retracted positions with capacity for
being swung between its active and loading posi
as
tions determined by the ?rst and second ‘notches
by exertion directly upon said guide of sufilcient -
effort to veil’ect dislodgment of the latch by the
cam tooth aforesaid; and separate means for
swinging the guide from its loading to its fully 40
retracted position determined by the third notch
including a latch control lever, and a latch con
trol disk connected to said lever with capacity for
limited independent movement relative to the
stop disk about the pivot axis of the guide, said 45
latch control disk having a cam edge for first
dislodging the latch from the second notch of
said stop disk before imparting movement to the
guide through the stop disk.
'
‘ 14. In combination, a guide for directing fabric 50
between the feed cups of a cup feed sewing ma
chine; means for pivotally supporting the guide
for movement from active vertical position in
suspension to retracted position; a stop disk con
nected to the guide and rotatively adjustable on 55
the pivot axis, said disk having a pair of contigu
ous notches with a cam tooth intervening, and
and vice versa; and camming latch means for a diametrically-opposite pair of notches with
holding the guide in its active and loading posi
60 tions with capacity for yielding under pressure straight radial side edges; a spring-urged latch 60
exerted directly upon the guide to permit move - cooperative with the individual notches of the
ment of said guide from one position to another. ?rst-mentioned pair in the disk when the latter
v 11. In combination, a guide for directing fabric is set in one position, to hold the guide in active
and retracted positions, and with the notches of
between the feed cups of a feed cup sewing ma
65 chine; means pivotally supporting the guide for the other pair when said disk is adjusted one
hundred and eighty degrees from the first setting
movement from active vertical position in sus
‘pension to a retracted angular loading position to hold the guide positively locked in active and
and vice versa; a stop member connected to the retracted positions; and a latch control cam disk
guide and having a pair of spaced notches with with a connected actuating lever having limited
70 a cam tooth intervening;.and a spring-urged independent movement on the pivot axis relative
70
latch cooperative with the individual notches of to the stop disk, whereby, with the stop disk in ,
the stop member to hold the guide in active or
loading positions, but permitting movement
one adjustment, the guide can be swung from
one position to another without the aid of the
thereof from one position to another by exer
latch actuating lever, and whereby, with the stop
75 tion directly upon the guide of suflicient eil'ort
disk in its other adjustment, the guide can be 75
2,131,007
swung only after dislodgment of the latch from
the stop disk by said lever.
15. In combination, a guide for directing fabric
\
5
active and retracted positions with capacity for
yielding under pressure exerted directly upon the
guide to permit movement of said guide from
one position to another; and means whereby the
91 chine; means pivotally supporting the guide for guide can be adjusted up and down and toward
movement from active vertical position in sus
and away relative to the feed cups, and laterally
pension to a retracted position and vice versa; 9. of the entrant bight 01 said cups.
camming latch means for holding the guide in HANS HACKLANDER.
between the feed cups of a cup teed sewing ma
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