US1662045A - Lamp-making machine - Google Patents

Lamp-making machine Download PDF

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Publication number
US1662045A
US1662045A US708240A US70824024A US1662045A US 1662045 A US1662045 A US 1662045A US 708240 A US708240 A US 708240A US 70824024 A US70824024 A US 70824024A US 1662045 A US1662045 A US 1662045A
Authority
US
United States
Prior art keywords
sealing
exhaust
head
lamp
heads
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
US708240A
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English (en)
Inventor
Frank W Patterson
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
Priority to NL16589D priority Critical patent/NL16589C/xx
Priority to DEP48628D priority patent/DE421921C/de
Application filed by General Electric Co filed Critical General Electric Co
Priority to US708240A priority patent/US1662045A/en
Priority to FR598103D priority patent/FR598103A/fr
Priority to GB10381/25A priority patent/GB232953A/en
Application granted granted Critical
Publication of US1662045A publication Critical patent/US1662045A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/385—Exhausting vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/24—Vacuum-tight joints between parts of vessel between insulating parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
    • H01J2893/0039—Glass-to-glass connection, e.g. by soldering

Definitions

  • My invention relates to the manufacture of incandescent lamps andsimilar articles comprising an exhausted glass bulb, and
  • One object of my invention is to provide a simple and compact machine for sealing-1nand exhausting the lamp and so constructed that the operator transfers the hot lamp from the sealing-in machine directly to'the exhaust machine by a movement which is practicallyno greater or different than that necessary merely to remove the lamp from the sealing-in machine.
  • Another object is to provide such a machine which ,occupies practically no more floor space than either the sealing-in machine or the exhaust machine heretofore used.
  • a further'objcct is to provide such a machine by means of which one operator can seal in and exhaust a lamp or similar device in practically the sametime as has heretofore been required merely for sealing-in. 1
  • FIG. 1 is a top plan view of a lamp making machme with certain parts broken away;
  • Fig. 2 is a side elevation of the machine shown in Fig. 1 and
  • Fig. 3 is a longitudinal section of a part of the machine shown in Fig. 2, this section being taken through the mechanism at position A of Figure 1.
  • the particular form of lamp making machine illustrated in the drawing comprises a table 10 with brackets 11 on the underside to carry a cross bar 12- for. supporting a vertical tubularpost 13 which projects some distance above the top of the table. 'On the upper end of the'post 13 a manifold 14, supplied with gas and air through pipes inside the post, has sealing-in burners 15, and other sealing-in burners 15 on a manifold 16, shown 'in Fig. 1, assist in .producin a hot sealing-in fire which will thorough y fuse the neck of the bulb to the mount.
  • the lamp bulb and the mount to be sealed into it can be held in various ways and while held brought within range of the sealing-in burners by various means, but I prefer to use a rotatable carrier, such as the spider 17,
  • sealing-in head 18 has uprights 19 and a bulb yoke20 to hold the bulb neck down so that the fires ofthe burners 15 will strike it at the proper place. It is desirable, though not necessary, to provide the sealing-in head -with a ull down fork 21, such as shown in the U. patent to Van Keuren No. 1,326,121 Dec. 23, 1919.
  • Each scalingin head is rotatably journaled in the spider 17 by a vertical tubular shaft 22 best shown in Figure 3, and the mount for the lamp is held in position inside the bulb by a mount holder, such as the vertically movablerod 23 slidably mounted in the tubular shaft 22 so as to be raised and lowered at will.
  • A. pinion 24 loosely mounted 'on the vertical shaft 22 of the sealing-in head is driven from a continuously running gear 25 mounted on the upper end of a tubular shaft 26 concentric with the post 13.
  • the sealing-in head is driven from the pinion 24 through a friction clutch 27 which grips the shaft 22 firmly enough to drive it while the head is free but which will slip if the head is forcibly held.
  • the sealing-1n head should be stationary while at positionA to enable the operator to remove the sealed in lamp from it and load it with a bulb and mount.
  • a locking mechanism such as a hook 28 on the lower end of the shaft 22 in osition to be engaged, as shown in dotted ines in Figure 1, as the head comes into the loading position A by a yielding catch 29 pivoted on a stationary arm 30 mounted on the upper end of a tube 31 which in turn is su ported and held at the lower end b a brac et 32 on the lower side of the tables.
  • This tube 31 also acts as a bearing for the gear 25 and throu h it for the spider 17.
  • the sealing-in hea remains stationary as long as it is in the loading position, but as it is carried toward position B by the movement of the spider 17 the hook is disengaged from the catch, whereu on the sealing-in head begins to revolve eing driven through the friction clutch.
  • the sealed in lamp reduced on the mechanism above describe comes back to the loading position A and is immediately transferred, while still hot from the sealing-in fires, to an exhaust mechanism so positioned that the operator can place the sealed in lamp in the exhaust mechanism by practically the same movement used to remove the lamp from the sealing-in head.
  • the particular exhaust mechanism shown in the drawing comprises exhaust heads 33, one for each sealin -1n head, and each comprising a thick wa ed rubber tubing such as is commonly used for this purpose.
  • Each exhaust head is mounted immediately adjacent a sealing-in head 18, as shown in Figure 1, but below it, as shown in Figure 2, so that a lamp in the exhaust head is below and out of the range of the sealing-in fires.
  • the exhaust heads are mounted on the spider 17 by means of brackets 34 secured to the spider and are connected through pipes '35 to ports in a flat rotary exhaust valve 36 of the general type shown in said U. S. patent to Massey 996,936 and mounted u on a flat valve seat 37 which is secured to t e top of the table 10.
  • This flat valve seat is provided with one or more exhaust ports ositioned to register with the ports in the va ve, and connected through suitable connections such as a pipe 38, to exhaust pumps not shown.
  • each exhaust head 33 is in turn connected to the exhaust pumps.
  • the spider 17 and the exhaust valve 36 constitute a rotatable frame or carrier for the sealing-in heads 18 and the exhaust heads 33. To insure that the valve and the spider will rotate as a unit they are tied together ,in some suitable way, for example by a bolt or projection 39 extending from thedvalve 36 through a bracket 34 on the spi er.
  • the frame or carrier composed of the valve 36 and spider 17 is rotated step by step through a tubular valve shaft 40 connected at its upper end to the valve 36 and havin on its lower end the driven member 41 of intermittent gearing such as that shown in U. S. patent to Swan No. 796,470 August 8, 1905.
  • This gearing is actuated from a countershaft 42 driven by a motor 43 which also through a train of gearing 44 drives the continuously running gear 25 for rotating the sealing-in heads 18.
  • the mount rods 23' can be raised and lowered by hand if desired, but I prefer to control them automatically by some means, such' as stationary cams 45 made in the form of ribs projecting from the rim of the valve seat 37 and positioned to maintain the mount rods at the proper elevation during travel of the sealing-in heads.
  • the mount rod should be'lowered while the sealedin lamp is removed and then raised again to receive another mount.
  • the control fork is then raised andlowered automatically through links 47 from a cam 48 on the countershaft 42.
  • the mechanism is so timed that the raising and lowering of the control fork and the mount rod in the fork occurs while the sealing-in head is stationary. As the head moves to the next position the flange on the lower end of the mount rod moves out of the control fork onto the cam 45.
  • the bulb and the mount are placed in a' sealing-in head at the loading position A.
  • I have illustrated a lamp in which the exhaust tube is on the tip of the bulb, but the machine is equally useful for manufacturing tipless lamps of the type shown in Mitchell and White Patent N 0. 1,423,956 July 25, 1922.
  • the mount 49 is placed on the upper end of the mount rod 23 and then the tubulated bulb 50 is placed in the bulb yoke so that the parts are in the relative position best shown in Figure 2.
  • the intermittent gearing then moves the frame step by step and thereby carries the sealing-in head in succession through the various positions B, C, D and E in each of which the head remains for a head 33, whereupon the sealed lamp is in the position illustrated in Figure 2 and is ready to be exhausted.
  • This transfer of the lamp from the sealing-in head to the exhaust head is accomplished very easily and quickly, and the lamp is still so hot from the sealingin fires that it can usually be exhausted without further heating although it may be further heated during exhaust if desired.
  • each sealing-in head remains in the loading position A long enough to enable the operator to transfer the sealed in lamp from the sealing-in head .to the exhaust head, and reload the sealingin head.
  • the exhaust head 33 may be placed in any convenient relation to the sealing-in head 18, but I prefer to place it as shown in the drawing, somewhat to the right of the corresponding sealing-in head and at a greater distance +'rom the axis of the machine than the sealing-in head so that the ring of sealing-in heads is concentric with the ring of exhaust heads. I find that this arrangement is very convenient and enables the operator to transfer the lamp from the sealing-in head to the exhaust head with great ease. It will be noted that the floor space required by the machine is no greater t ian that for a sealing-in machine or an exhaust machine of an equal number of heads, and therefore, my invention effects a marked saving in floor space.
  • a stationary valve seat provided with an exhaust port
  • a rotatable carrier comprising a valve and mounted to cause said valve to rotate on said valve seat, said valve having a port to cooperate with said exhaust port, an exhaust head mounted on said carrier and connected to said port in said valve, a sealing-in. head constructed to hold a mount and a bulb and mounted on said carrier adjacent said exhaust head, sealing-in burners mounted adjacent said carrier to direct a flame across the path of said sealing-in head, and actuating mechanism for rotating said carrier to move said sealing-in head into and out of range of said burners.
  • a stationary valve seat having an exhaust port
  • a movable carrier comprising a valve mounted to slide on said valve seat and having a plurality of ports positioned to cooperate with said exhaust port, a plurality of exhaust heads mounted on said carrier and each connected to a )ort in said valve.
  • sealing-in burners mount-- ed to direct a flame across the path of said sealing-in heads. and above the path of said exhaust heads, and actuating mechanism for moving said carrier to bring said sealing-in heads into and out of range of said burners.
  • a rotatable carrier having a valve provided with a plurality of ports, a. stationary valve seat on which said valve rotates and having an exhaust port to cooperate with the ports in said valve, a plurality of exhaust heads mounted to travel in a circular path and each connected to a corresponding port in said valve, a plurality of sealing-in heads for holding a bulb and mount and mounted on said carrierto travel in a circular path concentric with and inside of thepath of said exhaust heads, each of said sealing-in heads being immediately adjacent and above one of said exhaust heads, sealing-in burners mounted to direct a flame across the path of said sealing-in heads and above the path of said exhaust heads, and actuating mechanism for rotating said carrier.
  • a machine of the character described the combination of a stationary valve seat having an exhaust port, a carrier comprising a valve provided with a port positioned to cooperate with said exhaust port and mounted to rotate on said valve seat, a. sealing-in head on said carrier comprising means for holding a bulb and means for holding a mount inside a bulb in said bulb holder, heating means for fusing together the bulb and mount in said sealingin head, an exhaust spindle, and a flat exhaust valve having a tubular spindle perpendicular to its plane and concentric with said sleeve and provided with ports, and tie members between said spider and said valve to rigidly connect them, a support for said carrier comprising a journal for said exhaust valve spindle having on one end a valve seat with a port to cooperate with the ports in said valve, exhaust heads on said carrier, each connected to a corresponding port in said valve, sealing in heads mounted on said s ider between said exhaust heads'and t 0 axis of said spider and above said heads,

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Specific Conveyance Elements (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US708240A 1924-04-22 1924-04-22 Lamp-making machine Expired - Lifetime US1662045A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL16589D NL16589C (en, 2012) 1924-04-22
DEP48628D DE421921C (de) 1924-04-22 Maschine zur Herstellung elektrischer Gluehlampen
US708240A US1662045A (en) 1924-04-22 1924-04-22 Lamp-making machine
FR598103D FR598103A (fr) 1924-04-22 1925-04-20 Perfectionnements aux machines à fabriquer les lampes à incandescence
GB10381/25A GB232953A (en) 1924-04-22 1925-04-21 Improvements in and relating to machines for making incandescent electric lamps and similar articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US708240A US1662045A (en) 1924-04-22 1924-04-22 Lamp-making machine

Publications (1)

Publication Number Publication Date
US1662045A true US1662045A (en) 1928-03-06

Family

ID=24844967

Family Applications (1)

Application Number Title Priority Date Filing Date
US708240A Expired - Lifetime US1662045A (en) 1924-04-22 1924-04-22 Lamp-making machine

Country Status (4)

Country Link
US (1) US1662045A (en, 2012)
FR (1) FR598103A (en, 2012)
GB (1) GB232953A (en, 2012)
NL (1) NL16589C (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422945A (en) * 1944-11-23 1947-06-24 Gen Electric Apparatus for manufacturing electron discharge devices
US2603178A (en) * 1945-05-04 1952-07-15 Harry Alter Company Brazing machine
US2619928A (en) * 1945-03-26 1952-12-02 John R Milburn Appliance for use in welding
US2794699A (en) * 1952-12-13 1957-06-04 Westinghouse Electric Corp Manufacture of small lamps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422945A (en) * 1944-11-23 1947-06-24 Gen Electric Apparatus for manufacturing electron discharge devices
US2619928A (en) * 1945-03-26 1952-12-02 John R Milburn Appliance for use in welding
US2603178A (en) * 1945-05-04 1952-07-15 Harry Alter Company Brazing machine
US2794699A (en) * 1952-12-13 1957-06-04 Westinghouse Electric Corp Manufacture of small lamps

Also Published As

Publication number Publication date
NL16589C (en, 2012)
GB232953A (en) 1925-07-30
FR598103A (fr) 1925-12-07

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