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Патент USA US2135288

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NOV. l,\1938.
V
A, KQENIG
2,135,288
MACHINE FOR MAKING FILAMENT SUPPORTII‘IG‘STEUCTURES
Filed April 11, 1936
2 Sheets-sheaf. 1
Inventor:
A l exancler“ Koenig,
EAWZM
ttorneg.
>
Nov. 1, 1938.
A. KOENIG
‘2,135,288’
MACHINE FOR MAKING FILAMENT SUPPORTING STRUCTURES
‘ Filed April 11, 1936
q
2 Sheets-Sheet 2
46
I nventorr
A lexanqer Koe?ig.
a ‘9M1 M1
Dali/5% tor" neg.
2,135,288
Patented Nov. 1, 1938
UNITED‘ STATES
PATENT OFFICE ’
2,135,288
MACHINE FOR MAKING FILAMENT' SUP
PORTING STRUCTURES
Alexander Koenig, Berlin-Charlottenburg, Ger
many, assignor to General Electric Company, a
corporation of New York ,
Application April 11, 1936, Serial No. 73,869
In Germany June 17, 1935 -
9 Claims.
My invention relates to machines for making
the ?lament supporting ‘ structure of tubular
lamps and the like. My invention relates par
~ ticularly to the making of a ?lament supporting
5 structure comprising a stay wire or rod which
is to lie longitudinally in the lamp bulb, a lateral
support or stay attached thereto for holding and
bracing the longitudinal stay in position in the‘
bulb and support wires which are attached to the
10 longitudinal stay at intervals by insulating bead
for supporting the ?lament.
.
’
According to my invention, the machine com
. prises means for advancing and positioning the
stay which is preferably unwound from a spool
15 and mechanisms located at spaced intervals along
(oi. 176-4)
1 and 2; is formed from a wire I3’ which is wound
on the supply spool I land is withdrawn there-.
from by rotation of the rollers I5 and IE which
engage the .end thereof. The rollers I5 and ii
are mounted on pins l1 and I8 respectively which
are pivoted in bracket l9 and which are turned '
at the same rate by mechanism (not shown).
Because of the larger diameter of roller IS, the
‘peripheral speeds of the rollers I5 and I6 di?er
and the. stay wire I3’ curls upward and passes 10
through the aperture 20 in plate 2| and between
the anvil portion 220i bracket l9 and the die 23.
A groove is provided in the die 23 for the stay
wire l3’ so that it is properly directed.
In this.
the path of travel of said stay for making and
position the end of the stay wire I3’ is ?rmly
held between the anvil 22 and die 23 and lies
attaching lateral stays, insulating beads and
with a mid-portion over the electrode 24 and
support wires thereto. Features of my machine
are the automatic mechanism for making the
20 lateral support or stay, the mechanism for weld
ing it to the longitudinal stay and the mecha~
nism for making and attaching the insulating
beads to said longitudinal stay.
Other features and advantages of my inven
2 tion will appear from the following detailed de
scription of a species thereof and from the ac~
companying drawings.
,
.
In the drawings Fig. 1 is a schematic side ele
vation of the machineof my invention; Fig. 2
30 is a vertical section through the lateral stay
making and attaching mechanism; Fig. 3 is a
the stay wire I0 which is located in a groove,
therein. The end of the stay wire I3’ is now
severed from the rest by ‘movement of the knife
'25 across the face'of ‘plate 2| and overthe aper
ture 20. The plate 2| is mounted on a stationary
part of the machine 26 and the knife 25 which
slides thereon is fastenedto the block 21. The
'block 21 is actuated by lever 28 which ehaswthe 25
upper end thereof located in an aperture therein
and which is operated ‘through. engagement of
the bolt 29 in the lower end with the cam 30.
The lever 28 is pivoted on the pin 3| and is nor
mally held back against the stop 32 by the spring 63
33 which extends between it and a stationary
side elevation of the stay beading mechanism; , part of the machine. The cam 30 is mounted
Fig. zlis a plan view of a portion thereof; and on shaft 34 which in this particular instance
r Figs. 5 and 6 areside and perspective views of turns once between every other indexing move
ment which results in a lateral stay I3 being at
tached) to the stay ill at intervals equal to two of
the indexing movements.‘ The lateral stay l3
formed by the end of the wire severed from wire
spool H is mounted on the right side of the ma- a I3’ is now Welded to the stay ID by downward
4O
chine and the wire I0’ is withdrawn and carried movement of electrode 35 into contact with said 40
in a substantially‘ horizontal position to the left lateral stay l3 at a point above where said stays
through the separate mechanisms of the machine. ill and I3 contact each other. .The electrodes
Upon leaving the spool H‘ the wire l0’ passes 24 and'35 are connected through wires 36 and
3'! in an electrical welding circuit. The electrode
into the lateral stay making and attaching mech
anism A, between the jaws of the wiresupporting 35 and the die 23- are lifted and the stay I0 is 45
the support wire inserting mechanism.
As shown in Fig. 1 of the drawings, the stay In
of the ?lament supporting structure is formed
from the wire it’ contained on spool H. 'The
and~advancing apparatus B and in operative re
lation to the heading and support wire inserting
mechanisms 0 and D respectively in turn. The
indexed longitudinally. The die 23 is turned
about pin 38 by mechanism (not shown) so that
the lateral stay I3 is removed from the groove
therein.
wire it is advanced intermittently insuch a man-“
The free end of the stay l0 extending beyond
ner that the same portions thereof coming intov the lateral stay making and attaching mecha
position before the lateral stay attaching mech
nism A is located in arm 39 of the stay indexing
. anism A also ‘come into position before each 0‘. imechanism B. The arm 39_ is provided with
l the other mechanisms in turn.
‘
The lateral support or stay 13 as shown in Figs.
jaws which grip‘ the stay I!) during the indexing
movement in' which the arm 33 and ‘the slide
2
9,185,288
48 on which it is mounted are moved to the left.
The slide 48 is mounted in ways 4! in a stationary
part of the machine and is operated in one di
rection by mechanism (not shown) engaging
moved upward plunging the upper end of the
support 12 into the bead 58 and after releasing
said support 12, drop down and grip the end of
the wire 88. Additional heat may be used to
Cl studs 42 therein and in the other direction by . soften the bead 58 if desired. The jaw 88 is fas
the weight 43. The weight 43 is connected
through the cord 44 which passes over pulley 45
to the slide 40. The slide 48 indexes‘ the stay
ill to the left and then returns before again re
10
peating the indexing movement.
Further along the path of travel of thestay
i0 and at a point at which the joined stays l8
and I: come to rest between indexing movements
is located the beading mechanism C shown in
15 Figs. 1 and ~3. The mechanism C supports an
insulating rod 48 of glass in this instance which
is carried into contact with the stay “I at the
joint ‘between stays i8 and ii. The major por
tion of the glass rod 48 lies in the passage 41
20 in the holder 48 and is gripped by the bolt 49
which is located in a passage therein. As shown
in Fig. 4, the rod 48 passes through an aperture
50 in the bolt 49 and is gripped between the end
-of said aperture 58 and the holder 48 (Fig. 3)
by movement of said bolt 49 resulting from ex
pansion of the spring ii. The rod 48 is carried
into contact with the stay ill by rotation of the
holder 48 about pin 82 as the high part of cam
53 is rotated from engagement with the holder
48. The weight of the holder 48 and apparatus
attached thereto causes it to swing against the
cam 53. The ?ames from the burners 54 and 55
strike the end of the rod 48 and fuse it to the
stays l8 and I8 whereupon the rod 48 and holder
tened to the arm 14 extending from the slide
15 whereas jaw 89 is pivoted on the pin 18 held
by said arm 14. The jaws 88 and 88 are moved
vertically by mechanism (not shown) which
moves the slide ‘IS on the stationary ways TI. A
spring 18 located in the lower end of each of the
jaws 88 and” causes said jaws to close and a
lever 19 (only partially shown) opens the jaws ,
by striking the lower end of jaw 89. The stay‘
I8 is supported adjacent the inserting mecha
nism by the rest 88 which is moved up into peeltion after each index of the stay "I.
The rest
88 is slidably mounted in a stationary portion II
of the machine and when in position has the
collar 82 against said portion and the stay ll 20
resting in a groove therein.
The stay in being of inde?nite length permits
the machine to be operated inde?nitely without
a stop and the ?lament supporting structures to
be out from the resultant structure to the desired 25
length.
'
What I claim as new and desire to secure by
Letters Patent of the United States is:
i. In a device of the class described, the com
bination of an apparatus for supporting a stay; 30
mechanism located adjacent thereto for making
and attaching a second stay to the ?rst stay com
prising a pair of rollers turned at different pe
ripheral speeds for curling and feeding an end
48 are moved upward and then to one side to
portion of a wire longitudinally, a knife for sev
melted from the rod 48 forms a bead 58 located
of electrodes connected to a welding circuit for
cause the rod 48. to string out and be melted ering the curled end portion of said wire from
off just above the stay l8. As shown, the glass the remainder to form the second stay, a pair
around the joint between-stays II and i8 and
40 has a larger quantity of glass below the joint
so that the end of a support wire can be inserted
therein without touching either of the stays I!
or [3. The rod 48 and holder 48 are moved up
ward by the arm 51 which is attached to said.
45 holder 48 by pin 52 and which is turned about
pin 58 by the cam 58 which it engages. The
holder 48 is moved sideward by cam 58 which
is like cam 58 fastened to shaft 88 which in turn
is driven by means (not shown). The pin 58 is
mounted in a stationary part 8| of the machine.
The outward swing of the holder 48 carries the
end of bolt 48 against the stop 88 which pushes
said bolt inward releasing the glass rod 48. and
allowing it to fall by its own weight against the
rest 84. The stay i8 is now indexed once where
upon the holder 48 is moved to the left and down
to again bring the rod 48 in contact with the stay
i0. With this cycle of movement the beads 88
are placed on the stay ill twice as often as the
lateral stays i3, 1. e., at each joint between the
stays l8 and i3 and at a point mid-way between.
The next indexing of the stay “I, as shown in
Figs. 1 and. 5, brings the beaded portion of said
stay l8 into operative relation to the support wire
65
welding the second stay to the ?rst stay and
mechanisms also located adjacent said appara
40
tus for fusing a bead of insulating material to said
?rst stay and for inserting an end of a support
in said bead.
‘
2. In a device of the class described, the com
bination of apparatus for supporting and mov
ing a stay intermittently in the direction of its
longitudinal axis; mechanism located adjacent
the path of movement of said stay for feeding
and attaching a second stay to said ?rst stay
comprising a pair of rollers turned at different.
peripheral speeds for curling and feeding an
end portion of a wire longitudinally, a knife for
severing the curled end portion of said wire from
the remainder to form _the second stay, a pair
of electrodes connected to a welding circuit for
welding the second stay to the ?rst stay; mech
anism located at another position along the
path of movement of the ?rst stay for attach:
ing an insulating bead thereto; and mechanism
further along said path of movement for in
serting a support in said bead.
3. In a device of the class described, the com
bination of apparatus for supporting a stay and
mechanisms located adjacent thereto for feed~
inserting mechanism D. ’ Mechanisms for this
ingandfor attachingasecondstaytothe?rst
purpose are well known‘ in the art and may for
instance, as shown in Fig. 6,‘comprise the sup
stay, for feeding a portion of a rod of insulating
material into engagement with the stay, for
ply spool 85 with’ the wire 88 extending therefrom heating said portion of said rod to fuse it there
threaded up through an aperture in block 81 and to, for moving the unheated portion of said
rod away from the fused portion to separate 70
said portions and for inserting a support into
. the wire 88 held by the jaws 88 and 88 from the > said fused portion of the rod on said stay.
70 between the jaws 88 and 88. The knife 18 in
cooperation with the block 81 severs the end of
rest and the peg 'li engages the lower end of
the support 12 thus formed and winds it into an
75 open loop 13.
The jaws 88 and 88 are than
4. In a device of the class dwcribed, the com
bination of apparatus for supporting and mov-»
ing a stay intermittently in the direction of its 76
3
2,185,288
wire from said spool into said groove in said
guide member to bend the end thereof across
the path of movement of said stay for making ‘the face of said electrode by a pushing opera
tion, means for severing said end of said wire,
and attaching a second stay to the first com
a second electrode disposed adjacent said first
prising a pair of rollers turned at different pe
ripheral speeds for curling and feeding an end mentioned electrode, and means for moving said >
portion of a wire longitudinally; a knife for second-mentioned electrode toward said ?rst
severing said curled end portion of said wire mentioned electrode to weld said end of said
from the remainder to form the second stay, a wire to said stay wire to form a transverse sup 10
pair of electrodes connected to a welding circuit port.
a
8. In a device of the class described, an elec
for welding the second stay to the '?rstfmech
anism located at‘ another position along the path trode, means for feeding a stay‘ wire longitudi
longitudinal axis; mechanism located adjacent
of movement of the, first stay for feeding a por—
tion of a rod of insulating material into engage
ment with the ?rst stay, for heating said. por
tion of said rod to fuse it thereto, for moving
the unheated portion of said rod away from the
nally across the face of said electrode, a guide
vfused portion to separate said portions; and
mechanism further along the path of movement
posed adjaeent to said guide member and adapt
member adjacent to said electrode having a
curved groove extending laterally of the path
of travel of said stay wire on each side of said
electrode, a spool for wire, a pair of rollers dis
of the stay for inserting a support into said
fused portion of the rod on said stay.
20
5. In a device of the class described, means‘
for intermittently feeding a stay wire longitudi
nally, means for feeding a support wire trans
versely across said stay wire, means for secur
ing said support wire to said stay wire, means
for fusing a bead of vitreous material to said
stay wire and means for feeding a ?lament sup
port wire toward said bead to embed an, end
thereof in said bead.
6. In a device of the class described, means
30 for intermittently feeding a stay wire longitu
dinally, a spool for wire, means for feeding wire
from said spool transversely of said stay wire
and for bending the end of said wire across
said stay wire, means for severing said end of
35 said wire, means for securing said end of said
wire to said stay wire to form a transverse sup
port, means for fusing a bead of vitreous ma
terial to said stay wire and means for feeding
a ?lament support wire toward said head to em-
ed to be rotated to feed the wire from said spool
therebetween, one of said rollers being larger 20
40 bed an end thereof in said bead. '
7. In a device of the class described, an elec
trode, means for feedingja stays wire longitudi
nally across the face of said electrode, a guide
member adjacent to said ‘electrode having a
curved groove extending laterally of the path
of travel of said stay wire on each side of said
electrodeha spool for wire, means for feeding
in diameter than the other so as to curl the end
of said wire and guide it into said groove in
said guide member to bend the end thereof across
the face of said electrode, means for severing
said end of said wire, a second electrode dis 25
posed adjacent said ?rst-mentioned electrode,
and means for moving said second-mentioned
electrode toward said ?rst-mentioned electrode
to weld said end of .said wire to said stay wire
30
to form ,a transverse support.
9. In a device of the class described, means
for feeding a stay wire longitudinally, a holder
for supporting a glass rod vertically above said
stay wire with its lower 'end adjacent to said
stay wire, means for clamping said glass rod in
said holder, heating means for fusing said lower
a bead on said
adjacent to
a position above said rest‘ member, means for 40
causing said clamping means to release said glass
rod to permit it to drop down in its holder
against said rest member and means for swing
ing said holder back to position the end of the
glass rod adjacent to another portion of‘said 45
stay wire.
‘
ALEXANDER
KOENIG.
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