Патент USA US2135288код для вставки
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at spaced intervals along (oi. 176-4) 1 and 2; is formed from a wire I3’ which is wound on the supply spool I land is withdrawn there-.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.