US1958344A - Securing means for holding electric light bulbs in sockets - Google Patents

Securing means for holding electric light bulbs in sockets Download PDF

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Publication number
US1958344A
US1958344A US642778A US64277832A US1958344A US 1958344 A US1958344 A US 1958344A US 642778 A US642778 A US 642778A US 64277832 A US64277832 A US 64277832A US 1958344 A US1958344 A US 1958344A
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United States
Prior art keywords
sockets
light bulbs
electric light
securing means
holding electric
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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
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US642778A
Inventor
Richard O Kretschmar
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Individual
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Individual
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Priority to US642778A priority Critical patent/US1958344A/en
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Publication of US1958344A publication Critical patent/US1958344A/en
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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
    • H01R33/97—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held
    • H01R33/971—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held for screw type coupling devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch

Definitions

  • lhe invention relates to means for holding electric light bulbs in sockets, and has for its principal object the provision of means to prevent loosening of electric light bulbs by vibration or otherwise, and providing a means that is reasonable in cost of manufacture and that is extremely eiiective in operation to prevent loosening of the light bulb endangering extinguishing the light and loss of the bulb.
  • Figure 1 is a side view in elevation of the shell of an electric socket showing a light bulb in posi tion therein and the means for preventing the loss of the bulb
  • Figure 2 is a longitudinal sectional view of the shell showing the light bulb and its base in position therein,
  • Figure 3 is a transverse sectional view on a plane indicated by the line 3-3 of Figure 2, and
  • Figure 4 is a fragmentary view in elevation of the improved light bulb.
  • the invention is particularly adapted for use with threaded electric sockets, and in the drawing the shell of such a socket is shown at 10, and
  • the shell 10 has an offset extension 15 to receive the collar 13 when the lamp is screwed into position, and 16 is a grooved extension on the part 15 in which is secured an arcuate spring member 17 at one 0!
  • a light bulb holding means comprising socket having a circumferential groove, an arcuate resilient member mounted in said groove and having an angularly disposed end extending 76 through an opening in the wall of the groove, and a light bulb engaging in said socket and having an indented collar to receive said angularly disposed end, said arcuate resilient member being exposed for removal of the angularly disposed end 80 from engagement with the indented collar for removal and replacement of the light bulb.
  • a light bulb holding means comprising a threaded socket, an ofiset extension on said socket provided with a circumferential groove and an 86 opening in the base of the groove, 9. light bulb having a threaded base engaging in said socket and a collar engaging in said oilset extension and provided with indentations, and an arcuate resilient member engaged in said groove and having an 90 angular extension extending through said opening and engaging in an indentation in the collar, said arcuate resilient member being exposed for removal of the angularly disposed end from engagement with the collar for removal and re- 06 placement of the light bulb.

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  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

May '8, 31934. R. o. KRETSGHMAR SECURING MEANS FOR HOLDING ELECTRIC LIGHT BULBS IN SOCKETS Filed NOV. 15, 1932 Patented May 8, 1934 1.1; TATES PATNT FFICE SECURING MEANS FOR HOLDING ELECTRIG LIGHT BULBS IN SOCKETS 2 Claims.
lhe invention relates to means for holding electric light bulbs in sockets, and has for its principal object the provision of means to prevent loosening of electric light bulbs by vibration or otherwise, and providing a means that is reasonable in cost of manufacture and that is extremely eiiective in operation to prevent loosening of the light bulb endangering extinguishing the light and loss of the bulb.
1c The invention will be described in detail hereinafter and will be found illustrated in the accompanying drawing, in which Figure 1 is a side view in elevation of the shell of an electric socket showing a light bulb in posi tion therein and the means for preventing the loss of the bulb,
Figure 2 is a longitudinal sectional view of the shell showing the light bulb and its base in position therein,
29 Figure 3 is a transverse sectional view on a plane indicated by the line 3-3 of Figure 2, and
Figure 4 is a fragmentary view in elevation of the improved light bulb.
In the drawing similar reference characters are used to designate corresponding parts in all the views.
The invention is particularly adapted for use with threaded electric sockets, and in the drawing the shell of such a socket is shown at 10, and
adapted to receive the base 11 of an electric lamp, 12 designating the bulb of the lamp, and 13 a collar that is an extension of the threaded base 11 arranged adjacent to the bulb 12, said collar being provided with a plurality of indentations 5 14. The shell 10 has an offset extension 15 to receive the collar 13 when the lamp is screwed into position, and 16 is a grooved extension on the part 15 in which is secured an arcuate spring member 17 at one 0! its ends and its other end provided with an angular extension or lug 18 that engages through an opening 19 in the base of the groove 16 and in one 01' the indentations 14 to hold the electric light bulb from unscrewing when in proper position in the socket so as to eliminate the possibility of the light being extinguished when subjected to vibrations as are electric light bulbs on steamships, railroad trains, and 30 the like, such vibration oftentimes causing the lamps to unscrew from the sockets and break or become lost.
It will be apparent that the spring member 17 is exposed so that the lug 18 may be lifted or pried out of engaging position with collar 13 and its indentations when the lamp bulb is to be moved relatively to the socket so as to prevent injury to the lamp bulb in installing or removing it.
What is claimed is:
1. A light bulb holding means, comprising socket having a circumferential groove, an arcuate resilient member mounted in said groove and having an angularly disposed end extending 76 through an opening in the wall of the groove, and a light bulb engaging in said socket and having an indented collar to receive said angularly disposed end, said arcuate resilient member being exposed for removal of the angularly disposed end 80 from engagement with the indented collar for removal and replacement of the light bulb.
2. A light bulb holding means, comprising a threaded socket, an ofiset extension on said socket provided with a circumferential groove and an 86 opening in the base of the groove, 9. light bulb having a threaded base engaging in said socket and a collar engaging in said oilset extension and provided with indentations, and an arcuate resilient member engaged in said groove and having an 90 angular extension extending through said opening and engaging in an indentation in the collar, said arcuate resilient member being exposed for removal of the angularly disposed end from engagement with the collar for removal and re- 06 placement of the light bulb.
RICHARD 0. KRETSCHMAR.
US642778A 1932-11-15 1932-11-15 Securing means for holding electric light bulbs in sockets Expired - Lifetime US1958344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US642778A US1958344A (en) 1932-11-15 1932-11-15 Securing means for holding electric light bulbs in sockets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US642778A US1958344A (en) 1932-11-15 1932-11-15 Securing means for holding electric light bulbs in sockets

Publications (1)

Publication Number Publication Date
US1958344A true US1958344A (en) 1934-05-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
US642778A Expired - Lifetime US1958344A (en) 1932-11-15 1932-11-15 Securing means for holding electric light bulbs in sockets

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784385A (en) * 1954-02-02 1957-03-05 Harlan M Ennis Safety electric coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784385A (en) * 1954-02-02 1957-03-05 Harlan M Ennis Safety electric coupling

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