US1795181A - Incandescent lamp and similar device - Google Patents

Incandescent lamp and similar device Download PDF

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Publication number
US1795181A
US1795181A US187626A US18762627A US1795181A US 1795181 A US1795181 A US 1795181A US 187626 A US187626 A US 187626A US 18762627 A US18762627 A US 18762627A US 1795181 A US1795181 A US 1795181A
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US
United States
Prior art keywords
bulb
base
similar device
incandescent lamp
filament
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
US187626A
Inventor
Roscoe G Phelps
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 BE350805D priority Critical patent/BE350805A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US187626A priority patent/US1795181A/en
Priority to DEH113708D priority patent/DE469875C/en
Priority to FR653509D priority patent/FR653509A/en
Application granted granted Critical
Publication of US1795181A publication Critical patent/US1795181A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
    • 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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
    • H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means

Definitions

  • My invention relates to electric incandescent lamps and similar devices comprising a bulb, a filament and a base, and more particularly to improvements in methods of manufacture thereof having as their object the production of devices having the said parts in more uniformly accurate relation and alignment.
  • my invention consists in the production of a bulb having a neck portion which has a portion thereof formed definitely so that when a base is subsequently seated over said portion it will be axially aligned with the bulb and spaced a definite distance from the filament. Moreover, according to my invention, the sealing 2U of the mount in said bulb is so accomplished that the seating portion of said neck is substantially retained.
  • FIG. 1 is an elevation of a bulb formed according to my invention
  • Fig. 3 is a similar view of an old form of bulb
  • Figs. 4 and 5 are views showing cases of faulty alignment arising from the use of said old form
  • Fig. 6 is an elevation of 3U a lamp embodying my invention equipped with a bayonet type base.
  • the bulb shown in Fig. 1 is blown with a bowl portion 10 and a neck portion 11. At their junction there, is a comparatively sharp 3.3 contraction resulting in a shoulder 12 and below said shoulder the constricted portion A is definitely dimensioned and shaped for a short distance to conform to the kend' portion of a base shell.
  • the base is so positioned that the ins 18 are accurately positioned -a definite istance from the filament of the lamp on account of the engagement of the end of the base with the shoulder.
  • the base of the filament is indicated at 00.
  • Fig. 3 In Fig. 3 is shown the old form of bulb. The absence of a shoulder such as 12 of Fig. 65 1 and of the portion A immediately therebelow renders accurate sealing-in difficult. The result is that the sealing-in operation causes an irregular shoulder to be formed on the bulb neck, as shown at 19-20 in Fig. 4, and 70 21-22 in Fig. 5.
  • the bases When the bases are slipped, over the end of such bulbs they are not properly aligned with the bulb or filament and not only present an unattractive appearance but render the definite positioning of a fila- Vthereloelow and conforming totheinterior end portion ofthe base, sealing-infthe filarnent mount while preserving a substantial part of said base seating portion, and then positioning the base with the end portion thereof engaging said base seating portion and uniting the base to said bulb.
  • An incandescent lamp comprising a fila-- ment, a bulb comprising a neck having a shoulder and a portion extending a substantial distance therebelow and accurately disposed axially with reference to said filament and a base comprising an end portion having an inner surface conforming to the surface of said neck portion and seated thereon.

Description

March, 1931.- R. @.PHELPS I INCANDE'SCENT LAMP AND'SIMILAR DEVICE Filed April 29, 1927 JNSZENTDR.: EDSDDE GI HELPE :5y
.l Hz-s' ra-aansla- Patented Mar. 3, 1931 y UNITED STATES PivrlazNT OFFICE BOSCOE PHELPS, F CLEVELAND, OHIOASSIGNOB T0 GENERAL ELECTRIC COMPANY, A CORPORATION 0F NEW YORK Application led April 29,
My invention relates to electric incandescent lamps and similar devices comprising a bulb, a filament and a base, and more particularly to improvements in methods of manufacture thereof having as their object the production of devices having the said parts in more uniformly accurate relation and alignment.
The features of my invention and the advantages thereof will appear from the following description of a species thereof and from the claims. In general my invention consists in the production of a bulb having a neck portion which has a portion thereof formed definitely so that when a base is subsequently seated over said portion it will be axially aligned with the bulb and spaced a definite distance from the filament. Moreover, according to my invention, the sealing 2U of the mount in said bulb is so accomplished that the seating portion of said neck is substantially retained.
In the drawing Fig. 1 is an elevation of a bulb formed according to my invention; Fig.
2;, 2 is a similar view showing the completed lamp; Fig. 3 is a similar view of an old form of bulb; Figs. 4 and 5 are views showing cases of faulty alignment arising from the use of said old form; and Fig. 6 is an elevation of 3U a lamp embodying my invention equipped with a bayonet type base.
The bulb shown in Fig. 1 is blown with a bowl portion 10 and a neck portion 11. At their junction there, is a comparatively sharp 3.3 contraction resulting in a shoulder 12 and below said shoulder the constricted portion A is definitely dimensioned and shaped for a short distance to conform to the kend' portion of a base shell.
1o Uien the filament mount which ordinarily comprises a flared stem tube is sealed into the bulb, the lower portion of the bulb neck is melted off. However, according to my invention, the sealing-in is accomplished Without 4: removing all of the portion (A). As shown INCANDESCENT LAMP AND SIMILAR DEVICE 192?. serial' Nu. 187,626.
in Fig. 2, after the sealing-in operation which causes the bulb neck to be contracted at 13 to engage the seal with the are 14 of the stem, there still remains the portion 15 of the original portion (A). The result is that when the base 16 is placed in'fposition to be united with the bulb, the end portion 17 of the base engages the shoulder 12 and the accurately dimensioned portion 15 thus valigning the base and positioning it a -defnitedistance from the filament which has been accurately sealed in the bulb. In the form shown in Fig.
6 the base is so positioned that the ins 18 are accurately positioned -a definite istance from the filament of the lamp on account of the engagement of the end of the base with the shoulder. The base of the filament is indicated at 00.
In Fig. 3 is shown the old form of bulb. The absence of a shoulder such as 12 of Fig. 65 1 and of the portion A immediately therebelow renders accurate sealing-in difficult. The result is that the sealing-in operation causes an irregular shoulder to be formed on the bulb neck, as shown at 19-20 in Fig. 4, and 70 21-22 in Fig. 5. When the bases are slipped, over the end of such bulbs they are not properly aligned with the bulb or filament and not only present an unattractive appearance but render the definite positioning of a fila- Vthereloelow and conforming totheinterior end portion ofthe base, sealing-infthe filarnent mount while preserving a substantial part of said base seating portion, and then positioning the base with the end portion thereof engaging said base seating portion and uniting the base to said bulb.
2. An incandescent lamp comprising a fila-- ment, a bulb comprising a neck having a shoulder and a portion extending a substantial distance therebelow and accurately disposed axially with reference to said filament and a base comprising an end portion having an inner surface conforming to the surface of said neck portion and seated thereon.
In witness whereof, I have hereunto set my hand this 27th da of A ril, 1927.
08() E G. PHELPS.
US187626A 1927-04-29 1927-04-29 Incandescent lamp and similar device Expired - Lifetime US1795181A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE350805D BE350805A (en) 1927-04-29
US187626A US1795181A (en) 1927-04-29 1927-04-29 Incandescent lamp and similar device
DEH113708D DE469875C (en) 1927-04-29 1927-11-01 Device for boiling and cooling the electrolyte in galvanic elements
FR653509D FR653509A (en) 1927-04-29 1928-04-27 Improvements to incandescent lamps and similar devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US187626A US1795181A (en) 1927-04-29 1927-04-29 Incandescent lamp and similar device

Publications (1)

Publication Number Publication Date
US1795181A true US1795181A (en) 1931-03-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US187626A Expired - Lifetime US1795181A (en) 1927-04-29 1927-04-29 Incandescent lamp and similar device

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US (1) US1795181A (en)
BE (1) BE350805A (en)
FR (1) FR653509A (en)

Also Published As

Publication number Publication date
BE350805A (en)
FR653509A (en) 1929-03-22

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