US1066475A - Electric-lamp cut-out. - Google Patents

Electric-lamp cut-out. Download PDF

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Publication number
US1066475A
US1066475A US57600110A US1910576001A US1066475A US 1066475 A US1066475 A US 1066475A US 57600110 A US57600110 A US 57600110A US 1910576001 A US1910576001 A US 1910576001A US 1066475 A US1066475 A US 1066475A
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United States
Prior art keywords
lamp
electric
insulating
conducting
cut
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Expired - Lifetime
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US57600110A
Inventor
Herbert S Dunning
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Westinghouse Lamp Co
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Westinghouse Lamp Co
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Publication date
Application filed by Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Priority to US57600110A priority Critical patent/US1066475A/en
Application granted granted Critical
Publication of US1066475A publication Critical patent/US1066475A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof

Definitions

  • My invention relates to cut-out devices for electric incandescent lamps andit has for its object to provide a self-contained lamp and cut-out which shall. be simple in construction and eifectii e in operation.
  • Figure 1 of the accompanying drawing is a sectional view of the base portion of a lamp that embodies my invention
  • Fig. 2 is a plan view of one of the parts of the said lamp.
  • the present lamp is provided with the usual base comprising a threaded cylindrical shell 1 that is connected to one of t-heterminals or leading-in wires 2 of the lamp,-an insulating end member 3 therefor, and a conducting tip or plate 4 that is I mounted on the said insulating member and is connected to the other terminal or leading-in wire 5 of the lamp.
  • a resilient conducting strip 6 having a stem 7. that extends through the end'member 3 and is connected tothe conducting plate t.
  • the extremities of the strip 6 are rounded inwardly and are resiliently pressed toward the cylindrical shell 8 but are normally maintained out of engagement therewith by insulating films 9 that are punctured or destroyed when the voltage between the saidparts becomes excessive.
  • the insulating films may be composed of any suitable ma- Copies of this patent may be obtained for five cents each, by addressing the commissionei' etlfatcnts.
  • the terminals of the lamp are separated by only thin-films of insulating material, and when the filament of the lamp becomes broken, or the lamp is otherwise damaged, the volt age between themember 6 and the cylindrical shell 1 becomes sufiicient to puncture the insulating film or films, and the lamp is automatically short-circuited.
  • An incandescent lamp comprising a conducting base member, a resilient conducting member within the same, and an insulating film separating the said members and pressed by' the resilient member against the base member.
  • the combination with a base comprising a conducting shell, an insulating end member, and an outer plate for the end member, of a conducting member extending across the inner face of the insulating end member and connected to said 'olate, and an insulating film between the conductingterrorismnber' and the shell.
  • a resilient conducting member that is within the base member and is connected to the other terminal of the lamp, and an insulating filnr between the-said members and pressed by the resilient-member against the base member.

Description

H. S. D'UNNING ELECTRIC LAMP GUT-OUT. APPLIGATSIONQI'ILED AUG.6, 1910.
Patented July 8, 1913.
WITNESSES:
2 UNITED STATES PATENT OFFICE.
HERBERT s. DUNNIN'G, or EAST ORANGE, NEW JERSEY, ASSIGNOR o WESTINGHOUSE LAMP COMPANY, n CORPORATION 011 PENNSYLVANIA,
ELECTRIC-LAMP GUT-OUT.
Specification '61. Letters'latent.
Application filed August 6, 1910. SeriaI No. 576,001.
To all whom it may concern:
Be it known that I, HERBERT S. DUNN- ING, a citizen of the United States, and a resident of East Orange, in the countyof 'Essex and State of New Jersey, have invented a new and useful Improvement in Electric-Lamp Cut-Outs, of which the following is a specification.
My invention relates to cut-out devices for electric incandescent lamps andit has for its object to provide a self-contained lamp and cut-out which shall. be simple in construction and eifectii e in operation.
Figure 1 of the accompanying drawing is a sectional view of the base portion of a lamp that embodies my invention, and Fig. 2 is a plan view of one of the parts of the said lamp.
The present lamp is provided with the usual base comprising a threaded cylindrical shell 1 that is connected to one of t-heterminals or leading-in wires 2 of the lamp,-an insulating end member 3 therefor, and a conducting tip or plate 4 that is I mounted on the said insulating member and is connected to the other terminal or leading-in wire 5 of the lamp.
lVithin-the cylindrical shell 1 and extending across the same adjacent to the inner face of the insulating end member 3, is a resilient conducting strip 6 having a stem 7. that extends through the end'member 3 and is connected tothe conducting plate t.
The extremities of the strip 6 are rounded inwardly and are resiliently pressed toward the cylindrical shell 8 but are normally maintained out of engagement therewith by insulating films 9 that are punctured or destroyed when the voltage between the saidparts becomes excessive. The insulating films may be composed of any suitable ma- Copies of this patent may be obtained for five cents each, by addressing the commissionei' etlfatcnts.
terial, such as mica or bc-rax. Thus, the terminals of the lamp are separated by only thin-films of insulating material, and when the filament of the lamp becomes broken, or the lamp is otherwise damaged, the volt age between themember 6 and the cylindrical shell 1 becomes sufiicient to puncture the insulating film or films, and the lamp is automatically short-circuited.
I claim as my invention:
1. An incandescent lamp comprising a conducting base member, a resilient conducting member within the same, and an insulating film separating the said members and pressed by' the resilient member against the base member.
2. In an incandescent lamp, the combination with a base comprising a conducting shell, an insulating end member, and an outer plate for the end member, of a conducting member extending across the inner face of the insulating end member and connected to said 'olate, and an insulating film between the conductingnieinber' and the shell.
conducting base member that is connected An incandescent lamp comprising a Patented July 3,1913.
to one terminal of the lamp, a resilient conducting member that is within the base member and is connected to the other terminal of the lamp, and an insulating filnr between the-said members and pressed by the resilient-member against the base member. A
In testimony whereof, I have hereunto subscribed iny name this 21st ,day o-f'July,
HERBERT S. DUNNING. Witnesses CHARLES E. KELLY, ()rro S. SCHAIRER.
Washington, D. C.
US57600110A 1910-08-06 1910-08-06 Electric-lamp cut-out. Expired - Lifetime US1066475A (en)

Priority Applications (1)

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US57600110A US1066475A (en) 1910-08-06 1910-08-06 Electric-lamp cut-out.

Applications Claiming Priority (1)

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US57600110A US1066475A (en) 1910-08-06 1910-08-06 Electric-lamp cut-out.

Publications (1)

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US1066475A true US1066475A (en) 1913-07-08

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