US3516130A - Flash bulb assembly apparatus - Google Patents

Flash bulb assembly apparatus Download PDF

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Publication number
US3516130A
US3516130A US695673A US3516130DA US3516130A US 3516130 A US3516130 A US 3516130A US 695673 A US695673 A US 695673A US 3516130D A US3516130D A US 3516130DA US 3516130 A US3516130 A US 3516130A
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US
United States
Prior art keywords
fingers
bulb
bulbs
base
leads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US695673A
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English (en)
Inventor
Richard Raymond Bower
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of US3516130A publication Critical patent/US3516130A/en
Assigned to ITT CORPORATION reassignment ITT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb

Definitions

  • multiple bulb flash bulb assemblies has become increasingly popular in the amateur photography field. Such assemblies are utilized on still cameras for producing a plurality of flashes of light without the necessity of replacing individual flash bulbs for each exposure made by the camera.
  • One tyype of a multiple flash bulb assembly commonly known as a flash cube comprises four individual bulbs mounted on a base which is adapted to be plugged into a suitable mechanism on the camera which may be actuated to rotate the base a quarter turn after a bulb has been fired.
  • the bulbs are enclosed in a transparent, generally cubical housing affixed to the flash bulb base, and reflector means is provided in the housing behind each bulb for directing flashes of light outwardly through the four vertical sides of the housing.
  • Each bulb has a pair of wire leads which pass through openings in the base and are crimped over an annular rib at the bottom of the base to secure the bulbs in place and to provide electrical contact means on the base for actuating the bulbs.
  • the present invention pertains to apparatus for performing this function.
  • means for positioning flash bulb means so that the leads thereof are generally oriented for registry with the respective holes in the base to which the bulb means is to be assembled.
  • First and second sets of spaced, generally parallel fingers are mounted for movement over the bulb positioning means and at a substantial angle, preferably but not necessarily a right angle, with respect to each other.
  • the sets of fingers are so arranged that when they are disposed over the bulb positioning means, the bulb leads are confined in the interstitial openings defined by the spaced fingers, which openings are in registry with the holes in said base.
  • the leads are properly oriented for insertion into the base holes.
  • FIG. 1 is a schematic top plan view of a portion of a conveyor system in which two conveyor carriages are shown which are movable in the rightward direction, said carriages embodying flash bulb holder means supporting three sets of bulbs of four bulbs each, with the leading carriage being shown with bases assembled to the bulbs mounted thereon;
  • FIG. 2 is a vertical section taken along line 22 of FIG. 1 showing in detail a bulb holder, a fragmentary vertical section of bulb lead positioning fingers, and a base in phantom lines, receiving the ends of the bulb leads;
  • FIG. 3 is a vertical section taken along line 3--3 of FIG. 1 showing a base being assembled to a plurality of bulbs after the lead positioning fingers have been retracted;
  • FIG. 4 is a perspective view of a flash bulb assembly in which the bulbs thereof have been assembled to the base by the apparatus of the present invention
  • FIG. 5 is a top plan view of the two sets of fingers employed for positioning the bulb leads in registry with the base holes, with one group of one of the sets of fingers being positioned between the leads of the bulbs;
  • FIG. 6 is a fragmentary view of a portion of the apparatus illustrated in FIG. 5, wherein the second group of fingers of said one set are positioned between the leads of the bulbs;
  • FIG. 7 is a fragmentary view similar to FIG. 6, but showing a portion of the other set of fingers in overlapping relationship with the first set of fingers, with the bottom of the base to be asembled to the bulbs being shown in phantom lines;
  • FIG. 8 is a transverse vertical section through any of the finger units of the apparatus, showing suitable guide means therefor.
  • FIG. 4 a flash bulb assembly 10, preferably comprising four flash bulbs 12, only two being seen, mounted to a base 14.
  • a generally cubical transparent housing 16 encloses the bulbs 12 and reflector means 18 which is arranged for reflecting flashes of light from the bulbs outwardly through the sides of the housing.
  • Each of the bulbs 12 has a pair of wire leads 20 which pass through spaced holes 23 in the base 14, are crimped over an annular rib or ring 24 which depends from the lower surface 26 of base 14, and have their free ends lodged in further holes 25 through base 14 on the Opposite side of ring 24 from the holes 23.
  • the present invention provides means whereby the leads 20 of the bulbs 12 are accurately positioned for insertion into the holes 23 in the base 14 so that subassemblies of bases 14 and bulbs 12 may be manufactured on a mass production basis.
  • sets of bulbs are assembled to a plurality of bases in a conveyor system, a portion of which is illustrated in FIG. 1 and generally designated by the numeral 30.
  • the conveyor system 30 comprises a plurality of conveyor carriages 32, two being shown in the drawing, which are movable in the rightward direction by a continuous chain 34 among various stations.
  • Eash carriage 32 includes a plurality of sets 36 of bulb holders 38. In the embodiment illustrated, three of such sets of bulb holders are provided on each carriage 32, each such set consisting of four separate spaced bulb holders 38. It is to be understood that any number of sets of bulb holders could be provided on the carriage 32, depending upon the number of base and bulb subassemblies which are desired to be manufactured, and that each set 36 may employ any deseried number of bulb holders 38, depending upon the number of bulbs which are desired to be assembled to a flash bulb base.
  • Each holder comprises a generally vertical body 40 having a cylindrical chamber 42 therein which opens at the top 44 f the body.
  • the longitudinal axis of the chamber is vertically disposed and, therefore, generally normal to the horizontal upper surface 46 of the carriage 32.
  • the lower end 47 of body 40 is fitted within a recess 48 in the carriage.
  • the diameter of the cylindrical chamber 42 is such that a bulb 12 may be slidably received therein.
  • the spring is supported by an annular shoulder 54 at the bottom of the chamber 42, and has a generally conical configuration, with the tip 56 of the bulb being seated within the upper portion of the spring.
  • bulbs 12 are initially placed by suitable dispensing means, not shown, in the holders 38 which are positioned along the center line 60 of the carriage 32, with the leads 20 thereof lying in planes generally normal to the center line 60.
  • This step takes place at a station at a trailing region, not shown, of the conveyor system 30.
  • bulbs are positioned in the holders 38 on opposite sides of the center line 60 of the conveyor carriage, with the leads thereof lying in planes generally parallel to the center line 60.
  • the leads 20 of the bulbs in each set 36 of the holders extend upwardly and are generally properly oriented for insertion into the holes 23 of three bulb bases 14.
  • the leads 20 are bent somewhat and, hence, are not in perfect parallel relationship.
  • the ends of the leads cannot be inserted into the base holes 23 without first positioning the ends of the leads in exact registry with the base holes 23.
  • a mechanism for performing this function, generally designated 62 is illustrated in FIGS. to 8.
  • the bulb lead positioning mechanism 62 comprises generally two sets of fingers 64 and 66, each being movable in a horizontal plane over the bulb holders 38 of the trailing carriage 32 in FIG. 1.
  • the two sets of fingers 64 and 66 are movable in a plane which is generally parallel to the upper surface 46 of the trailing carriage 32, and normal to the generally upright bulb leads thereon.
  • the first set of fingers 64 comprises two separate units 68 and 70.
  • the unit 68 includes a group of relatively wide fingers 72 and relatively narrow fingers 74 which are integral with a base 76.
  • the fingers 72 and 74 are in spaced, generally parallel and coplanar relationship.
  • the fingers 74 have a width substantially equal to the distance between adjacent base holes 23, while the distance between the opposed sides 78 of the adjacent fingers 72 is substantially equal to the distance between the outer edges of opposite holes 23 in a base 14.
  • the unit 70 includes a group of three pairs 80 of spaced fingers which are integral with a base 82, and are parallel and coplanar with the fingers 72 and 74 of the unit 68, and with each other.
  • the fingers 80 have a width sufficiently small so as to pass between bulb leads disposed between adjacent fingers 72 and 74 of the first unit 68. In other words, the width of the spaces between the fingers 72 and 74 is substantially equal to the Width of a finger 80, plus the thickness of two leads.
  • the unit 70 carrying the group of fingers is independently movable longitudinally relative to the unit 68 from the position illustrated in FIG. 5 to the position illustrated in FIG. 6 wherein the free ends of the fingers 72, 74 and 80 are in alignment.
  • the units 78 and 80 are movable by a common prime mover, not shown, which is preferably synchronized with the drive for the conveyor system 30.
  • the second set of fingers 66 comprises two separate units 84 which are movable in a plane which is parallel to the plane of movement of the first set of fingers 64, and in overlapping relationship therewith.
  • the units 84 each include a plurality of parallel, coplanar fingers 86, which are spaced apart a distance equal substantially to the thickness of a bulb lead nad have a width substantially equal to the distance between a pair of adjacent base holes 23.
  • the units 84 are slidable in suitable channels 88, one of such channels being illustrated in cross section in FIG. 8. It is understood that the units 68 and 70 of the first set of fingers 64 are also mounted for slidable movement in channels similar to the channel 88.
  • the units 84 are normally positioned at opposite sides of the first set of fingers 64, and are mounted for slidable movement at generally a right angle to the longitudinal axis of the fingers of the first set 64.
  • the two units 84 are shifted toward each other by actuating means, generally designated 90.
  • This actutaing means includes a cam block 92 which is mounted for movement in the same direction as the first set of fingers 64 and is movable by the prime mover, not shown, which moves the units 68 and 70 of the first set of fingers.
  • the block 92 embodies cam slots 94.
  • Lever arms 96 are pivotally mounted for horizontal movement by vertical pins 98 on the base 76. The upper ends of the arms 96, as viewed in FIG.
  • the fingers 72 and 74 are formed with parallel, spaced, transverse grooves 106 in their upper surfaces 108.
  • the fingers 80 are also formed 'with similar parallel, spaced, transverse grooves 110 which open at their upper surfaces 112 and are complementary to the grooves 106.
  • the grooves 112 therein are aligned with the grooves 106 in the fingers of unit 68, thus providing continuous guideways in which the fingers -86 of the units 84 are transversely slidable, as seen in FIG. 7.
  • each of the fingers 72, 74, 80 and 86 are tapered so that, upon movement of the fingers through the generally upright leads of the bulbs 12, the tapered ends of the fingers will provide cam surfaces 113 which deflect the leads into the spaces between the fingers.
  • bulbs 12 are positioned in holders 38 on the carriage 32., with their leads generally oriented for insertion into base holes 23, and the carriage 32 is positioned at the station illustrated at the left-hand side of FIG. 1.
  • the bulb lead positioning mechanism 62 is moved over the carriage 32 and, hence, the bulb holders 38, as illustrated in FIG. 5. In this position, only the group of fingers 72 and 74 are positioned between the leads of the bulbs.
  • the unit 70 is moved over the bulb holders, that is, in the upward direction as viewed in FIG. 5, until the fingers 80 reach the position illustrated in FIG. 6, in which position each of the bulb leads is confined against movement transverse to the longitudinal axis of the fingers 72, 74 and 80.
  • the units 84 of the second set of fingers 66 are moved to the position illustrated in FIG. 7, by shifting the block 92 upwardly relative to the base 76 as viewed in FIG. 5.
  • the fingers 86 of the units 84 are fully laterally extended in the guideways provided by grooves 106 and 110 in the first set of fingers 64, and confine the bulb leads against movement transverse to the longitudinal axis of the fingers 86. It can be seen that with the number of fingers illustrated, their dimensions and the angular relationship of the two sets 64 and 66, when the fingers are positioned as illustrated in FIG. 7, the leads of the bulbs are completely confined within three sets of eight interstitial square openings between the fingers which are in exact registry with the circular pattern of holes 23 of three adjacently positioned bulb bases 14.
  • the bulb holders 38 position the leads 20 of the bulbs so that the fingers of the lead positioning mechanism 62 will engage the leads closely adjacent to the free ends thereof, yet sufficiently spaced from such ends so as to permit a base 14 to be positioned, as illustrated in FIG. 2, with the ends of the leads extending a short distance into the base holes 23 when the base engages the upper surface of fingers 86.
  • the base holes are flared as indicated at 114 to facilitate insertion of the leads into the holes.
  • the bases 14 are pressed downwardly until they contact the upwardly extending surfaces 116 of the bulbs 12 as seen in FIG. 3. Because the bulbs are resiliently mounted by coil springs 52, the upper surfaces 11 6 of the bulbs will all firmly engage the downwardly facing surface 118 of each base 14, A suitable mechanism, not shown, is then employed for crimping the wire leads of the bulbs over the ring 2 4 of each base, with the ends of the leads being frictionally locked in openings 25 in the base.
  • the springs 52 also serve to prevent any bulb damage from occurring during this wire crimping operation, the generally conical configuration of the springs permitting the springs to exert a substantial force against the bulbs without danger of the springs presenting a rigid abutment should they become fully collapsed, as might occur with cylindrical coil springs.
  • the apparatus could be employed for other flexible wire elements for registry with openings in objects other than flash bulb assembly bases.
  • the invention could be employed for properly orienting wires in a suitable pattern for insertion into openings into electrical connectors or the like.
  • Apparatus for positioning a plurality of wires which comprises support means for supporting said wires generally in a preselected array and directed generally normal to a first plane, and first and second sets of spaced, generally parallel positioning fingers, each of said sets being arranged generally in a plane parallel to said first plane with the fingers of one set disposed at substantially a right angle relative to those of the other set, each of said sets being mounted for reciprocal axial movement between a retracted position spaced from said wires and an extended position confining said wires between adjacent pairs of fingers, said sets of fingers in said extended positions providing an arrangement of interstitial openings, corresponding to said preselected array, through which said wires extend.
  • said first set of fingers has a plurality of spaced, generally parallel guide grooves formed therein complementary to the respective fingers of said second set, and said fingers of said second set are slidable in the respective said grooves when said second set is moved between its said retracted and extended positions.
  • Apparatus as defined in claim 1 including cam means connected to said second set of fingers and movable generally in the same direction as said first set of fingers for moving said second set of fingers between its said retracted and extended positions.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Wire Processing (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
US695673A 1968-01-04 1968-01-04 Flash bulb assembly apparatus Expired - Lifetime US3516130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69567368A 1968-01-04 1968-01-04

Publications (1)

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US3516130A true US3516130A (en) 1970-06-23

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Application Number Title Priority Date Filing Date
US695673A Expired - Lifetime US3516130A (en) 1968-01-04 1968-01-04 Flash bulb assembly apparatus

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US (1) US3516130A (sk)
BE (1) BE726498A (sk)
DE (1) DE1817304A1 (sk)
FR (1) FR1599629A (sk)
GB (1) GB1246402A (sk)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738559A (en) * 1971-07-23 1973-06-12 Itt Flash cube assembly system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379135A (en) * 1943-11-29 1945-06-26 John W Ekstedt Method of producing grids for electron discharge devices
US2608744A (en) * 1946-10-19 1952-09-02 Hartford Nat Bank & Trust Co Method and device for positioning electrodes and other tubular elements
US2644998A (en) * 1946-08-07 1953-07-14 Hartford Nat Bank & Trust Co Method of mounting the electrode system for electric discharge tubes
US2923050A (en) * 1958-02-10 1960-02-02 Sylvania Electric Prod Lamp basing machinery
US3422514A (en) * 1963-10-14 1969-01-21 Gen Electric Apparatus for manufacturing alignedgrids electron discharge device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379135A (en) * 1943-11-29 1945-06-26 John W Ekstedt Method of producing grids for electron discharge devices
US2644998A (en) * 1946-08-07 1953-07-14 Hartford Nat Bank & Trust Co Method of mounting the electrode system for electric discharge tubes
US2608744A (en) * 1946-10-19 1952-09-02 Hartford Nat Bank & Trust Co Method and device for positioning electrodes and other tubular elements
US2923050A (en) * 1958-02-10 1960-02-02 Sylvania Electric Prod Lamp basing machinery
US3422514A (en) * 1963-10-14 1969-01-21 Gen Electric Apparatus for manufacturing alignedgrids electron discharge device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738559A (en) * 1971-07-23 1973-06-12 Itt Flash cube assembly system

Also Published As

Publication number Publication date
DE1817304A1 (de) 1969-07-31
BE726498A (sk) 1969-07-07
FR1599629A (sk) 1970-07-15
GB1246402A (en) 1971-09-15

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AS Assignment

Owner name: ITT CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606

Effective date: 19831122