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Патент USA US2115101

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April 26, 1938.
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B. H. GOSTKOWSKI
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2,115,101
APPARATUS FOR OPERATING A RELQQPING NEEDLE
Filed Nov. 7, 1936
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INVENTOR
BEDRI H USSEI N GOSTKOWSKI
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AT‘f'ORNEA/J
Patented Apr. 26, 1938
2,115,101 -
UNITED STATES2,115,101PATENT OFFICE
APPARATUS FOR OPERATING A RELOOPING .
NEEDLE
Bcdri Hussein Gostkowski, Geneva, Switzerland,
assignor to “Societe Vitos”, .Troyes, France
Application November 'I_, 1936, Serial No. 109,657
In Switzerland November 8, 1935
4 Claims. (CI. 66-15)
This invention relates to an apparatus for oper
ating a relooping needle by means of a motor, of
.a crank communicating a reciprocating move
ment to a ?exible wire sliding in a-tube and by
5 means of a clutch connecting the crank to the
motor practically only when said motor receives
energy.
.
.
another spring 30 surrounding the rod 22 . and
resting on the sleeve 24 pushes the connecting rod
2|, so as to try to bring the crank constantly back
to its dead centre, opposite the end of the tube-25
on the crank side, and this can also be called the 5 '
rear dead centre of the crank, as in said position
. the needle inv the needle ho1der-2'l‘occupies its
The apparatus according to the invention com
prises in particular an elastic member acting on
1 i the‘ crank and so disposed that the crank when
out of gear is always immediately brought back
to its dead centre, opposite the end of the tube
on the crank side.
'
.
The accompanying drawing shows an embodi
' ment of the apparatus according to the invention,
given by way of example. ‘
I
To use the apparatus described, the needle
holder 21 is extracted fromth'e sleeve 28, then it 10
is held in the operative position over the fabric
to be relooped. As the arm 3| carrying the guide .
23 and the'sleeve 24 can rotate with frictional
resistance around the axis of the disk 6, between I
vtwo immovable washers 32, 33, said arm may be is
inclined into the position best .adapted for the
work, for example it may be brought ‘into the
horizontal position shown in Fig. 2. In said Fig
Fig. 1 is an elevation of the apparatus.
Fig. 2 is a partial end view of same and
Fig. 3 shows‘ in diagram the electrical connec-_
tions of same.
The apparatus shown consists of a base I carry:
ing a bed 2 adapted to rotate in said base around
the vertical pivot 3. In the bed is located an
‘ electric motor 4 intended to drive a crank 5 car
ried by a disk 6, the transmission of the move
ment being e?ected by means of a band 1 con
necting the pulley 8 of the motor to the pulley 9
of the shaft I0.
most remote position.
Said shaft rotates in a bearing
ll vintegral with the bed 2. Said'shaft carries
30 one of the parts 12 of a. clutch l2, l3, the other
partbf which is carried by the bearing l4 and
carries in its turn the disk 6 and the crank 5.
The axial displacement necessary. for operating
ure 2, the position'3l' in dot and dash line cor
responds to the rest position, that is to say to‘the 20
position shown in Fig. 1.
I
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Then, the motor 4 and the electro-magnet 20
are ‘energized, The motor starts running and the
electro-magnet by ‘drawing its armature. l9 _
against the action of the spring 29 causes the _ 25
connection between the parts‘ l2 and I3 and the
immediate rotation of the crank 5, i. e. of the
needle which will in the holder effect a recipro
cating movement.
'
i
To stop the operation, it is only necessary to 30
cutoff the current. The motor does not stop im
mediately by virtue of its inertia, but the needle
will stop instantaneously, because the electro
the. clutch I2, I3 is obtained by means of a ring magnet will instantaneously cease to connect the
parts I 2 and I3. Due to the spring 30, the in-' 35
(‘A in l5 operated by the fork l6 of a lever l‘l pivoted
at l8. Said lever isactuated by the armature st'antaneous stoppage of the needle will be effect
ed in its most remote position, as ‘the spring 30
IQ of an electro-magnet 20,_likewise carried by' will
immediately puslr the crank 5 back to its rear '
the bed 2.
’
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To the crank 5 is connected a connecting rod‘ dead centre.
The control of the motor and of the electro- 40
40 2| acting on a rod 22 guided at 23 and penetrat
' ing into a sleeve 24, in which said rod 22 is con- ' magnet will be e?ected preferably from a pedal.
nected to a ?exible wire sliding in a tube 25. A
connected, on the one hand, to the wire net work
visible ‘in Fig. 2.
of a tripolar conductor 34. Fig. 3 shows an em
portion of said ?exible wire, designated by 26 is ' and on the other hand to the. apparatus by means
45
'
Flexible wire and tube end in needle holder 21 . bodiment of the electrical connection to be adopt- 45 1
shown in the rest position in Fig. 1. In said posi- ' ed. The terminals 35 are connected to the wire
tion, said holder lies in a sleeve 28 integral with net work. One of the poles of said wire net work
the bed 2 and in particular intended to protect is directly connected to the motor 4 and to the
the needle contained by said holder. The holder electro-magnet 20. The other poleis connected
itself can, for example be of the type described in to. a sliding contact 36 of the pedal, which con- 50
the‘ patent application 109,656 simultaneously
?led and copending herewith, entitled, “Needle
holder for a relooping needle".
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Finally a spring 29 constantly tries to push the
55 armature I! out of the electro-magnet, whereas
tains opposite said slidlngcontact a resistance 31
'
for the motor and a contact 33 for the electro
magnet. As will be seen, by displacing the sliding
contact in the direction of the arrow 39, the
motor and the electro-magnet are energized, but 55
2,116,101
the further the sliding contact is displaced, the
more rapidly the motor runs.
’
According to the relative positions occupied by
the resistance 31 and the contact 38 opposite
each other, the motor may be started a. little be
fore the electro-magnet is energized or inversely.
The crank 5, as shown, is not ?xed on the disk
6. It can rotate on said disk around a centre 40
.and under the in?uence of a lever II, which the
10 bores 42 permit of immobilizing in different posi
tions. By displacing the lever 4| clock-wise as
regards the disk 6 in Fig. 2, the crank 5 is removed
from the centre of rotation of the disk. By dis- .
placing the lever 4| in the opposite direction, said
crank is brought closer to said centre; Said dis
position therefore permits of modifying the am
plitude of the reciprocating movement which the
crank 5 gives to the ?exible wire 5, 'i. e. to the
relooping needle.
'
What I claim is:—
1. In an apparatus for operating a relooping
needle, an electric motor, a tube, a ?exible wire
crank to the motor only when said motor is ener
gized, an. elastic member acting on the crank to
move it to its rear dead center immediately upon
its being declutched from the motor, and an arm
independent of said crank mounted for pivotal
movement about the crank shaft, one end of said
tube being connected to said arm to participate in
the pivoting movement.
'
'
3. In an apparatus for operating a relooping
needle, an electric motor, a tube, a ?exible wire 10
.slidable in said tube, a crank for reciprocating
said wire, a clutch for operatively connecting the
crank to the motor only when said motor is ener
gized, an elastic member acting on the crank to
move it to its rear dead center immediately upon 15
its being declutched from the motor, and an arm
independent _of said crank mounted for pivotal
movement and frictional resistance about the
crank shaft, one end of said tube being connected
to said arm to participate in the pivoting move .20
ment.
,
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4. In an apparatus for operating a relooping
slidable in said tube, a crank for reciprocating needle, an electric motor, a tube, a ?exible wire
said wire, a clutch for operatively connecting the 'slidable in said‘ tube, a crank for reciprocating
crank‘ to the motor only when said motor is en
said wire, a clutch for operatively connectingthe 25
ergized and an elastic member acting on the crank to the motor only when said motor is_ ener
crank to move it to'its rear dead center immedi
sized, an elastic member acting on the crank, to
ately upon its being declutched from the motor. ~ move it to its rear dead center immediately upon '
2. In an, apparatus for operating a relooping its being declutched from the motor, and means
needle, an electric motor, a_tube, a‘ ?exible wire for varying the amplitude of movement of said 30
slidable in said tube, a crank for reciprocating
. said wire, a clutch for operatively connecting the
crank.
'
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BEDRI HUSSEIN GOSTKOWSICL
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