US1791378A - Method and machine for mounting coiled filaments - Google Patents

Method and machine for mounting coiled filaments Download PDF

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Publication number
US1791378A
US1791378A US180276A US18027627A US1791378A US 1791378 A US1791378 A US 1791378A US 180276 A US180276 A US 180276A US 18027627 A US18027627 A US 18027627A US 1791378 A US1791378 A US 1791378A
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US
United States
Prior art keywords
filament
hooks
supports
stem
machine
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
US180276A
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English (en)
Inventor
Regenstreif Jakob
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.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US1791378A publication Critical patent/US1791378A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/08—Manufacture of mounts or stems
    • H01K3/10—Machines therefor

Definitions

  • Une object of the invention is to simplify and render essentially automatic the mounting of coiled filaments of electric incandescent lamps, so that the mounting can advantageously be done on the support inserting machine without special operators.
  • the ends of the supports are first bent into hook form, as in mounting a stretched zig-zag shaped filament wound on the supports, then the coiled filamentis laid in these open hooks, and thereupon the hooks are closed into eyes enclosing the filament.
  • the coiled filament is also advantageously and simultaneously as laid in the hooks of the lead wires and then clamped or welded to them so that when the support hooksare bent over into eyes the filament is completely and securely mounted on the stem.
  • a filament support inserting machine of the kind in which, in several successive working positions', the supports are inserted in a fused or 40 softened glass bead of the arbor or center support rod, and their free ends are turned over by dies into hooks.
  • This support inserting machine is, in accordance with the invention, provided with a feeding device actuated to move horizontally in a plane above the supports for the coiled filament.
  • the filament which is placed'on the feeding device by the operator of the sup port inserting machine, is brought by the forward movement of the feeding device above the support, the filament is by relative movement of the feeding device and the stem delivered from the feeding device into the hooks of the supports, and if desired, also into the hooks of the lead wires, whereupon the hooks need merely be closed on the filament by suitable slides, punches or clamps.
  • Figure 1 is a diagrammatic plan view of a filament support inserting machine of the rotary type and suitable for carrying out the process.
  • F i re 2 is a sectional view of the hook bending part of the machine.
  • Figures 3 and d are sectional and plan as views respectively of a feeding device for coiled filaments.
  • Figure 5 is a sectional view of a punching device for closing the support hooks.
  • Figure 6 shows on an enlarged scale a filamentsupportwith a hook closed on a coiled filament.
  • the filament support inserting machine is rotated step by step in any own manner and has a number of stem holders or clamping devices arranged in a circle for the reception of the finished stems, which, as usual, consist for example, of a stem tube or flare a, Figure 2, an exhaust tube 6, an arbor or central rod 0 and leads e fused into the press 07.
  • the finished stems are introduced into the stem holders or clamping devices of the machine at working position 1 in the direction of arrow 7 either by hand or automatically, as by means of grippers of anannealing oven attached to the stem-making machine.
  • the feeding device is movable in a horizontal plane above the filament supports andconsists, in the example shown, of a lever p mounted on a vertical pin 0 to swing horizontally and at the same time to move Verti-
  • This lever p is, as shown in Figures 3 and 4, formed at the forward end into a fork open in a direction toward the machine, and in its upper surface an approximateiy annular groove 9 is formed.
  • the coiled filament is placed by the operator of the support inserting machine in this groove 1 when the lever p is in the outer position.
  • slots 8 placed perpendicularly to the lever p and traversing the groove 9 are provided.
  • the broad slots 6 located in the forked part of lever 39 serve for the convenient swinging in of the lever 17 as also for the passage of the lead wires e to be united to the filament 7".
  • the lever 72 For the purpose of placing the filament r in the hooks of the filament supports it and also of the lead wires 6 the lever 72 is first swung inwardly until the coiled filament lying in the groove (1 is centered above the filament supports. Thereupon the lever p is moved downwardly by the automatic control of the machine until it is below the supports.
  • the lever p By this downward movement of the lever p not only is the filament hung in the books of the filament supports h, but the ends of the filament projecting into the broad slot 23 are at the same time brought into the hooks of the lead wires 0 as these books stand in the same plane as the support hooks.
  • fastening devices such as two welding clamps it connected to a current source, which.
  • the supporting frame of the stem holder is raised so far that the supports it together with the positioned filament rise above the plane of oscillation of the machine.
  • the forked part of the feeding device can be formed in accordance with the shape of the coiled filament.
  • the feeding device can furthermore instead of consisting of an oscillating lever, be a slide movable radially of the machine.
  • the feeder device can also 1n lace of the inserting groove have a number 0 supporting hooks which are displaced relatively to those of the filament supports so that the latter can, in the relatively perpendicular displacement of the feeder device and the supporting frame, pass through the spaces between hooks of the feeding device at the same time taking hold of the filament.
  • the carrying over of the filament to the supports can also be effected by lowering of the feed lever p or by the reverse operation of raising the supporting frame.
  • a bodily movable stem holder having mounted adjacent its path at predetermined points a hook forming device, comprising a plurality of pairs of hook forming jaws radially disposed about a common center in registry with one of said points, a filament delivery device movable transversely of said path into alignment with said holder at another of said points and away from said holder while in alignment therewith, a hook closing device comprising a plurality of pairs of hook closing jaws for closing open hooks on the free ends of filament supports on the stem in said holder,-
  • a movable carrier a plurality of stem holders mounted on said carrier to be movable transversely of the direction of movement of said carrier, a lead bending mechanism, an anchor inserting mechanism, a filament mounting mechanism for placing a filament in the hooks of said anchors and leads, and an anchor closing mechanism mounted side by side adj acentthe path of said carrier in position to register with the stem holders on said carrier, and common actuating mechanism for moving said carrier operative relation to each of said mechanisms while in registry with it and actuating each mechanism while said stem holder is in operative relation to it.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)
US180276A 1926-05-01 1927-04-01 Method and machine for mounting coiled filaments Expired - Lifetime US1791378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1791378X 1926-05-01

Publications (1)

Publication Number Publication Date
US1791378A true US1791378A (en) 1931-02-03

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ID=7743443

Family Applications (1)

Application Number Title Priority Date Filing Date
US180276A Expired - Lifetime US1791378A (en) 1926-05-01 1927-04-01 Method and machine for mounting coiled filaments

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US (1) US1791378A (enrdf_load_stackoverflow)
BE (1) BE341270A (enrdf_load_stackoverflow)
NL (1) NL19051C (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472778A (en) * 1948-05-22 1949-06-07 Sylvania Electric Prod Coil clamping method and apparatus
US2517436A (en) * 1944-03-17 1950-08-01 William Dzus Forming method and apparatus
US2676622A (en) * 1952-01-02 1954-04-27 Gen Electric Hook forming mechanism
US2696848A (en) * 1949-10-05 1954-12-14 Ibm Relay wire contact inserting machine
US2760529A (en) * 1951-10-31 1956-08-28 Gen Electric Method and apparatus for making miniature lamp mounts
US2783783A (en) * 1953-03-09 1957-03-05 Westinghouse Electric Corp Filament clamping device for an automatic mounting machine
US2841189A (en) * 1953-06-01 1958-07-01 Gen Electric Apparatus for mounting filaments
US3147779A (en) * 1960-09-16 1964-09-08 Gen Electric Cutting and forming transistor leads
US3217380A (en) * 1960-10-27 1965-11-16 Sylvania Electric Prod Mount making method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517436A (en) * 1944-03-17 1950-08-01 William Dzus Forming method and apparatus
US2472778A (en) * 1948-05-22 1949-06-07 Sylvania Electric Prod Coil clamping method and apparatus
US2696848A (en) * 1949-10-05 1954-12-14 Ibm Relay wire contact inserting machine
US2760529A (en) * 1951-10-31 1956-08-28 Gen Electric Method and apparatus for making miniature lamp mounts
US2676622A (en) * 1952-01-02 1954-04-27 Gen Electric Hook forming mechanism
US2783783A (en) * 1953-03-09 1957-03-05 Westinghouse Electric Corp Filament clamping device for an automatic mounting machine
US2841189A (en) * 1953-06-01 1958-07-01 Gen Electric Apparatus for mounting filaments
US3147779A (en) * 1960-09-16 1964-09-08 Gen Electric Cutting and forming transistor leads
US3217380A (en) * 1960-10-27 1965-11-16 Sylvania Electric Prod Mount making method

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Publication number Publication date
BE341270A (enrdf_load_stackoverflow)
NL19051C (enrdf_load_stackoverflow)

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