US2199852A - Mount making machine - Google Patents

Description

v y 7, 1940- 7 B. IDEN 2.199.852 I v MOUNT MAKING 'uAHInE I Filed Nbv 30',jl938 2 Sheets-Sheet 1 Inventor: Fred Blden',

May 7, 1940. F. B. m 7 2,199,852 I 1401mm MAKING MAQHINE Filed Nov. 30. 1938 2 Sheets-Sheet 2 Inventor.

8b b X? as 1 y His Zttorney.

89 i IP88 I FPedBIder-w;

Patented May 7, 1940 PATENT OFFICE MoUN'r MAKING MACHINE Fred B. Iden, Cleveland Heights, Ohio, assignor to General Electric Company, a corporation of New York Application November 30, 1938, Serial No. 243,192

9 Claims.

My invention relates to apparatus for making incandescent lamp mounts, and more particularly to apparatus for making the filament supporting structure of miniature incandescent lamps.

'5 Still more particularly, my invention relates to apparatus for making a miniature lamp mount comprising .a plurality of comparatively rigid lead wires joined by a glass'bead having a filament supporting wire inserted therein. 10 Heretofore, miniature lamp mounts of the type described were made partly by hand, and it is an object of 'my invention to provide suitable apparatus for automatically making said mounts.

My apparatus'is of the general type disclosed in Illingworth Patent 1,733,881, which issued Octo- -ber 29, 1929, in that it provides a turret with heads at intervals thereabout which carry the lamp parts through various stations at which the lamp making operations take place. In the apparatus comprising my invention, a glass bead is first fused to the leads of the lamp mount'and then apartially formed support wire for the file. ment is inserted into the bead while it is still plastic. At other stations about the turret, means are provided for bending the support wire to the correct relation to the'leads and at the same time forming hooks in the ends of said leads to facilitate attaching a filament thereto. Other features and advantages of theapparatus 3 of my invention will be apparent from the detailed description which follows and from the accompanying drawings of a species thereof.

In the drawings, Fig. l is a plan view of a machine embodying my invention; Fig. 2 is a side elevation of the support wire forming and insertthereon which advance the lamp parts through various stations at which the lamp making opera- 50 tions take place and into operative relation to said operations. This form of construction is similar to that of the apparatus disclosed in the Illingworth patent hereinbefore referred to'which 55 can be incorporated with my machine to perform ing apparatus thereof; Fig. 3 is a perspective view other apparatus at 'said stations which perform the other lampmaking operations not provided for thereby. For instance, the substantially rigid leads I2 and I3 of the lamp mount-can be inserted automatically between the movable jaws I 4 and I5 and the separator I6, which form 5 the head I 0, at station A, and the glass bead II, which is fused to said leads I2 and I3, can be automatically threaded over the upper ends thereof at station B as disclosed in said patent.

At the time of the insertion of the leads I2 and I3, the jaws I4 and I5 which are located in a circumferential channel in the turret II and which are pivoted on the pins I8 extending therefrom are held apart from the separator I6 by the cam I9 also disposed therebetween. Following the insertion of the leads I2 and I3, the cam I9 is turned by means not shown and the jaws I4 and I5 are closed upon the separator I6 so as to grip the leads I2 and I3 located therebetween by the expanding force of the springs 20. The ,20 springs are located between each of the heads I0 in a position which allows them to engage the opposite jaws of adjacent heads I0 and are attached to the turret by the screws 2|. ,The glass bead II rests on the upper surface of the jaws Il'and I5 and the separator I6 and is melted down onto the leads I2 and I3 in the regular -manner by the burners 22 and 23 at stations C and D.

Upon moving from station D, the bead I1 is in a fused state and a support wire 24, ultimately intended to engage and support the mid-portion of a filament attached at its ends to the leads 'I2 and I3, is inserted thereinto as shown in Fig. 2. The particular apparatus used for this purpose depends on the type of support wire 24 required for the particular lamp being manufactured and, in this instance, is located at station E and is comprised of the apparatus 25 which partially forms said support wire 24, and the apparatus 26 which inserts said partially formed support wire 24. The support wire 24, is formed from the wire 21 which is wound on the spool 28 and which is threaded between the guide rolls 29, through the longitudinal groove in the slide 30 and below the leaf spring 3|. At the beginning of the cycle or operation, the slide 30, which is held in. ways in the bracket 32, is located much lower than shown and the end of the wire 21 extending from the lower end thereof is gripped by the inserting apparatus 26 which is then in the position. shown in dotted lines in Fig. 2. As the apparatus is operated, the slide 30 is moved up to the positionshown and the wire 21 is pulled from the spool 28 since said spool 28 is attached-to the slide 30 by the arm 33, and the end of said wire 21 is held by the inserting head 26. This movement ofthe slide 36 is brought about by means not shown connecting said slide 39 to the cam slide 34 in the manner of the inserting apparatus shown in Malloy Patent 2,058,332 which could be substituted for this apparatus. The slide cam 34 is held in ways in the bracket 32 which is mounted, to-

gether with the inserting head 26, on the block 35 which in turn is fastened to the standard 36 at an angle, causing the-support wire 24 to be inserted into the bead l1 at the desired angle. The standard 36 can, for instance-be attached to a table which forms a part of the machine and which supports the turret Movement of the slide cam 34 is brought about by the lever 31 which is connected thereto through the link 38 and which is operated by a cam (not shown) on the cam shaft 39 of the apparatus through the lever 48, the universal joints 4| and 42 and the rod 43. The lever 46 is pivoted on the pin 44 extending from the standard 36 and is turned so that a roller (not shown) on the lower end thereof engages the cam by the contracting force of tl.e spring 45 which extends between said lever 46 and a portion of the standard 36.

52 and moves the'head 46 as the roller 53 on the end thereof passes into the lower portion of the slot 54 in said slide cam 34. The movement of the head 41, which is mounted on the lever 55, first carries the forward end of the slide 56, which is held in ways therein, against the portion of the wire 21 which engages the fiat portion of the die 49 so that said wire is securely held in place, and then carries the knife 51 against said wire 21 so that it is severed adjacent the. cutting block 56. The movement of lever 55 .occurs as the roller68 enters the lower end of the slot 59 in the slide cam 34 and turns said lever 55 about the pin 88 by which it is pivotally attached to the bracket 32. The knife 51, as shown in Fig. 3, is attached to the head 41 between the ways provided therein for the arms 5| of the head 46 which slide therein and keep the heads 46 and 41 properly aligned. V

After the slide 56 engages the wire 21, all further movement of the head 41 causes said slide 56 to move in the ways therein and expands the spring 6| which is located between the end of said slide 56 and a lug extending from said head 41. During the final portion of the movement of the head 41, the protruding die 62 thereof is carried against the now free portion of the wire 21 which forms the support wire 24 and it is bent back against the die 49 of head 46. This operation only partly forms an open hook in the end of the support wire 24 and a slide 64 in ways in the head 46 is now moved'out from the head 46 to bend the remaining free portion of the end of said support wire 24 back against the transverse portion of the die 62 of the head 41 so that said hook is completely formed. The slide 64 is'operated by the lever 65 which is connected thereto through the link 66 and is turned about the pin 61 extending from bracket 32 as the roller 68 on the upper end thereof enters the lower portion of the slot 54 in the slide cam 34. 'The support wire forming apparatus 25 is now in the position shown in Fig. 2 and the slide cam 34 moves down until the heads 46 and 41 are separated from the support wire 21 whereupon the inserting head 26, which is then the only support for said wire 21,

moves down to the position shown.

body 12 and which butts against theend of said finger 68. A corresponding movement occurs in the block 10, although in the opposite direction since the rod 1| slides in the body 12 as the finger 68 moves, and this movement is transferred through the lever 14 and the comparatively rigid wires 15 on opposite sides of the arm 68 to said block 10. The lever 14 as shown is pivotally mounted on the pin 16 carried by the body 12 and engages the pin 11 carried by the rod 1| through a slot in its end. Both the finger 68 and the body 12 of the inserting arm 68 are located between the opposite sides of the bracket 18 which keep them in proper alignment with the support wire forming apparatus 25 and the head III of the machine. The body 12 is pivotally attached by the pin 19 to the bracket-18 which in turn is fastened to the block 35 so as to be permanently positioned with reference to the support wire forming apparatus 25 also attached thereto.

Following the separation of the heads 46 and 41 of the support wire forming apparatus 25, the inserting arm 68 is caused to swing down until the lower end of the support wire 24 is forced into the bead I1 carried by the leading-in wires l2 and I3 in the head I 6 positioned before the appa-l ratus. This movement of the inserting arm 68 is caused by rotation of the body 12 about the pin 19 and is brought about by the cam 86 on the- The lever 8| is connected"to-the body tending from the bracket 36. The spring 84,

which extends between a post in the lever 8| and a second post (not shown) in the lower portion of the bracket 36, swings the lever 8| so that the roller thereon engages the cam 86.- The lower limit of movement of the inserting head 26 is reached when the finger 68 comes in contact with the roller 85 which is attached by means of the arm 86 to the bracket 18. The end of the inserting finger 68 in this instance, as shown in Fig. 4, is slotted at 81-81 to provide clearance for the ends of the support wires 2 and I3 extending upward from the bead I1.

Following the insertion of the support wire 24, the finger 68 and the block 18 are separated sufficiently to release said support wire 24 and provide clearance for the hook in the upper end thereof when the inserting finger 68 is raised and returned to its former position. The separation of the inserting finger 68 and the block 16 is brought about by the slide 88 (Fig. 2) which is moved forward until the lever 14is engaged and which it is held by the plate 88 and is actuated by the lever 88 which is connected thereto through the link 8| and which engages the cam 82 through a roller on the pin 83. The lever 88 is pivoted on the pin 83 and is turned so that the roller thereon engages cam 82 by the spring 84 which extends between apost in said lever 88 and a second post (not shown) extending from the standard 36. The movement of lever I4 actuates the block I8 through the wires I5 and the finger 68 through the pin II and rod II, the latter of which is moved until the latch 85 drops into the notch 86 therein. The. latch 85 now holds the rod II in place so that both the inserting finger 68 and the blockl8 remain separated and the slide 88 is no longer required. The inserting finger 68 is swung upward by the link 82 and other means already described, and rises until the body I2 thereof engages the pin 81, which extends through the bracket I8, and the end of said inserting finger 68 and block I8 are properly positioned at opposite sides of the wire 21 protruding from the slide 38. At this time,

the slide 88 is movedback so that the raised portion 88 thereof is carried below the roller 88 of .the lever I88 and said lever I88 is. carried upward against the end of the latch 85 lifting it from the notch 86. The lever I88 is pivotally mounted on the pin I8I and when moved stretches the spring I82 which is located between the post I83 (Fig. 5) extending through an opening in'the bracket 18 allowing full movement of the lever I88 and the post I84 extending from said bracket I8. The movement of the latch compresses the spring I3 which normally holds said latch 85 in the notch 86 or against the side of rod II and brings about the closing movement of the finger 68 and block I8 in the manner already described. The flange I85 on the end of the rod II limits the movement thereof. The following operations of the forming and inserting apparatus have already been described. v v

In order that the bead be suiiiciently plastic to allow. the insertion of the support wire 24, the fire from the burner I86 is caused to play thereupon prior to the actual insertion. As the insertion takes place, the burner I86 is turned so as not to strike the inserting finger 68 by means controlled by a fourth cam I8I (Fig. 1) on the shaft 38. The burner, as shown, isfastened to the pipe I 88 pivoted in th supporting bracket I88 and turned by the lever II8, link III and lever II2 which engages said cam I8'I through the roller II3.

All other operations of my machine take place at other stations taken by the head I8. In the instance shown, the hooked end of the support wire 24 is bent into proper relation to the leads I2 and I3 and hooks are bent into the ends of said leads I2 and I3 at station F. The apparatus for this purpose is shown in Figs. 1, 6 and '7 and comprises the dies H4 and, H5, the former of which is attached to the lever I I6 which is pivoted on the screw I I1 extending from the standard I I8, and the latter of which is attached to the lever II8 which is pivotedon the screw I28 extending from said standard I I8. After the head I8 comes into position before the apparatus, the die II 4 is swung into position beside the ends of the leads I2 and I3 as shown in Fig. 7 by movement of the lever II6 which is actuated by the introduction of the cam I2I on rod I22 behind the roller I23 carried by said lever II6. Normally the spring I24 which extends between posts in the lever H6 and the standard II8 holds'said lever- I I6 and ward movement thereof forces the lever II8 connected to said leads.

die H4 in the retracted position. The rod I22 is supported by the standard H8 and is moved down so as to actuate the device bymeans not shown operated in connection with the indexing movements of the turret II. At the same time the die H4 is carried into position, die H5 is swung toward the opposite side of the leads .I2 and I3 by the downward movement of the pin I25 in the biased slot I26 in the lever II8 which results from the downward movement of the arm I2'I. The arm-I21 is pivoted on the pin I28 extending from the standard H8 and is carried down with the rod I22 which it engages through I edge I33 of the bottom of the slot in die H5 20 against the support wire 24 so that it is bent over the center-inserted section I34 of the .die II4. Finally, the pin I25 reaches the bottom of the slot I26 in the lever I18 and the additional downdownward therewith so that the leads I2 and I3 and support wire 24 are bent to the position shown. This movement carries the teeth I32 of die II4 into the correspondingly shaped notches in die II5 which bends the ends of the leads I2 and I3 .down completing the hooks therein and carries the bottom portion I35 and the end I36 of the inserted section I34 of the die II5 more tightly against the support wire 24 which completes the bend in said support wire 24/ During 35 this final movement of the lever II8, the spring I3'I which extends between posts in the standard H8 and said lever II8 is stretched and the pin I28 is carried into the upper portion of the slot I38 in said lever 8. The dies H4 and 5 are now separated from the leads I2 and I3 and support wire 24 which are indexed from station F.

In the instance shown, the mount is not operated upon again while in the machine and is removed therefrom at station G although mechanisms for performing other operations such as the mounting of a filament and further bending of the inner and outer ends of the leads maybe supplied at any of the stations of the machine. Such other operations can, for instance, be those performed by the apparatus of the Illingworth patent hereinbefore referred to.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine of the character described, the combination of a movable carrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-by-side relation, heating means disposed adjacent the path of travel of said heads arranged to fuse a glass head to said leads tojoin. them-together, and means also located adjacent said path of movement of the heads for inserting into said bead between said leads without disturbing their position a support wire adapted to engage a filament 2. In a machine of the character described, the combination of a movable carrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-by-side rela- 7 tion, heating means disposed adjacent the path of travel of said heads arranged to fuse a glass head to said leads to join them together, means also located adjacent said path of movement of the heads for inserting into said'bead between 1 said leads without disturbing their position a support wire adapted to engage a filament con-. nected to said leads, a burner located adjacent said inserting means for directing a flame onto the bead, and means for directing said burner away from the bead during the insertion of the support wire.

3. In a machine of the character described, the combination of a movable carrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-by-side relation, heating means disposed adjacent the path of travel of said heads arranged to fuse a glass bead to said leads to join them together, and means also located adjacent said path of movement of the heads for severing a length of wire from a continuous length thereof, for forming a hook in'one end of said length of wire and for inserting the opposite end thereof into said bead between said leads without disturbing their position to provide'a support for a filament adapted to be connected to said leads.

4. In a machine of the character described, the combination of a movablecarrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-by-side rela-- 5. In a machine of the character described,

the combination of a movable carrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-by-side relation, heating means disposed adjacent the path of travel of the heads adapted to fuse a glass bead to said leads to join them together, means also located adjacent said path of movement of the heads for inserting into said bead between said leads without disturbing their position a support wire adapted to engage a filament connected to said leads, and means located at another position in the path of movement of the heads comprising a pair of co-acting dies, means for carrying one of said dies against portions of the leads and support wire adjacent the ends,

thereof and means for carrying the other die against said ends of said leads and support wire and toward the other die to bend said ends of the leads and the support wire over and then against said first-mentioned die.

6. In a machine of the character described, the combination of a movable carrier having heads thereon for supporting a plurality of leads in relatively close but spaced side-'by-side relation. heating means disposed adjacent the path of travel of said heads arranged to fuse a glass beadto said leads to join them together, means also located adjacent said path of movement of the heads for severing a length of wire from a continuous length thereof, for forming a hook in one end of said length of wire and inserting the opposite end thereof into said bead between said leads without disturbing their position to provide a support for a filament adapted to be attached to the leads, a burner adjacent said inserting means for directing a flame on said bead, means for directing said burner away from the bead during insertion of the wire therein,'and means located at another'position in the pathof movement of the heads for bending the end of the support wire into the correct relation to the leads.

7. In a device of the class described, gripping means for holding a partially formed lamp mount comprising a pair of spaced lead wires arranged in approximately vertical side-by-side relation and tied together by a glass bead, support-wire forming mechanism mounted adjacent and above said gripping means and comprising, a pair of opposed heads containing cooperating die members and a cutter, means for moving said heads toward each other to grip a wire therebetween and cause said cutter to sever it, and means for causing a relative movement between said die members to form a hook in the section of wire held by said heads, and transfer mechanism comprising a finger member mounted to pivot in a substantially vertical plane and having means at its end for gripping said section of wire, and means operable after separation of said heads to cause a pivotal movement of said finger member to transfer said wire section and embed an end thereof in the said glass bead while said bead is in a plastic condition.

8. In a device of the class described, gripping means for holding a partially formed lamp mount comprising a pair of spaced lead wires arranged in approximately vertical side-by-side relation and tied together by a glass bead, support-wire forming mechanism mounted adjacent and' above said gripping means and comprising a pair of opposed heads containing cooperating die members and a cutter, means for moving saidheads toward each other to grip a wire therebetween and cause said cutter to sever it, and means for causing a relative movement between said die members to form a hook in the section of wire held by said heads, 'and transfer mechanism comprising a finger member mounted to pivot in a substantially vertical plane and having means at its end for gripping said section of wire, and means operable after separation of said heads to cause a pivotal movement of said finger member to transfer said wire section and embed an'end thereof in the said glass bead between said lead wires while said bead is in a plastic condition, the end of said finger being slotted to provide clearance for the said lead wires.

9. In a device of the class described, gripping means for holding a partially formed lamp mount comprising a pair' of spaced lead wires arranged in approximately vertical side-by-side relation and tied together by a glass bead, means for severing a section of wire from a length thereof and forming a hook on an end thereof to constitute it a support wire, means for transferring. said support wire toward said gripping means and embedding the end thereof opposite said hook in the said glass bead while said head is in a plastic condition with the saidsupport wire disposed between said lead wires and at an angle to the plane defined by said lead wires, and shaping mechanism comprising die members arranged to engage said support wire and bend the hooked end thereof to bring said hook substantially into the said plane definedby said lead wires.

FRED B; IDEN.

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