US3386070A - Electric lamps - Google Patents

Electric lamps Download PDF

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Publication number
US3386070A
US3386070A US509860A US50986065A US3386070A US 3386070 A US3386070 A US 3386070A US 509860 A US509860 A US 509860A US 50986065 A US50986065 A US 50986065A US 3386070 A US3386070 A US 3386070A
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US
United States
Prior art keywords
socket
base
members
bulb
assembly
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
US509860A
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English (en)
Inventor
Jansson Karl Gustav Ludvig
Hulthen Bo Goran
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.)
Auralight AB
Original Assignee
Lumalampan AB
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 Lumalampan AB filed Critical Lumalampan AB
Application granted granted Critical
Publication of US3386070A publication Critical patent/US3386070A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/001—Lighting devices intended to be free-standing being candle-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/088—Clips; Clamps

Definitions

  • a decorative electric lamp which provides an integrated clamping arrangement for attachment to Christmas trees and the like and which includes socket and base portions formed of only two readily and inexpensively molded interfitting pieces which have formed in them interlocking elements for holding the various individual pieces together so that only a single rivet or screw and bolt is necessary for holding the entire lamp assembly together, and means for holding the electric lead in a gripping stress-relieving fashion.
  • This invention relates to electric lamps or fixtures for receiving electric light bulbs, and, more particularly, to small lamps especially adapted to such uses as being afiixed to the branches of Christmas trees and the like in the decoration thereof.
  • the formation of the socket itself requires some sort of core forming member (as opposed to simple molding) for forming the metal threaded portion, and some sort of insulation at the bottom thereof for accommodating the bottom contact.
  • core forming member as opposed to simple molding
  • insulation at the bottom thereof for accommodating the bottom contact.
  • small lamps for use, singly or in strings, for decorating Christmas trees and the like which may be made in a variety of decorative configurations or appearances, while yet comprising a desirably small number of individual parts, each of which is readily made and assembled with simple tools or by actual molding without expensive cores, etc., to provide a device of increased mechanical and electrical strength and stability, while increasing the ease and economy of fabrication and assembly into the finished articles.
  • the base parts of lamps in accordance herewith are formed as pairs of interfitting semicylindrical pieces for simple interlocking connection to hold therebetween and in rigid disposition the various contacts and clamps and other members with but, preferably, a single rivet or bolt for the entire device.
  • FIG. 1 is an exploded perspective view of one illustrative embodiment of a lamp embodying this invention and with the assembled disposition of the exploded parts being indicated by the various broken-line arrows;
  • FIG. 2 is a perspective view on a smaller scale show ing the embodiment of FIG. 1 (illustratively designed to simulate a candle and holder therefor) in finally assembled condition to receive a light bulb threaded into the top end thereof; and
  • FIG. 3 is a fragmentary view on a larger scale indicating part of the interlocking mechanism between two of the members of FIG. 1.
  • one illustrative embodiment of a lamp or fixture embodying this invention is shown as simulating the appearance of a candle in a candle holder having a drip pan around the lower portion thereofalthough, as will be understood, the particular decorative appearance or configuration of lamps embodying this invention may be provided in a wide variety of different forms, while still utilizing the mechanical expedients herein described as providing the desired simplification of manufacture and assembly of this invention.
  • the assembled arrangement comprises generally an upstanding tube 10 simulating a candle and for receiving at the upper end thereof a conventional Christmas tree light bulb having the conventional threaded base thereon, a base portion 11 simulating a candle holder with a drip pan 12 therearound, and a clamping device 13 for clamping the lamp onto a Christmas tree branch or any other desired support.
  • the bulb receiving socket to be inserted within tube 10 is formed of two semi-cylindrical socket members 15, 15', which may be conveniently molded of plastic such as a polycarbonate plastic.
  • Each of the socket members is provided with an internal threaded portion 16 to form, when the two socket members are assembled together in faceto-face relation, a threaded socket for receiving the threaded base of the light bulb.
  • the socket members 15, 15' can be entirely molded of plastic material, and the threaded portions 16 thereof are used merely to hold the light bulb in place and may be formed Without the necessary precision to maintain electrical contact with the bulb. Indeed, the threaded portions can even be discontinuous if desired. Because the socket is formed by two-semi-cylindrical members 15, 15', each can 'be very simply molded in one step without the necessity of providing or removing cores as would be the case with a conventional cylindrical Onepiece socket member.
  • the two socket members 15, 15' also are provided with slots 17 and 18 for accommodating and retaining, respectively, spring metal electrical contacts 19 and 20 disposed within the threaded socket formed when socket members 15, 15
  • one or more teats 21 are provided on socket member 15 with corresponding indentations (not shown) on socket portion 15' for the positioning and alignment of socket members 15, 15' in assembled face-to-face relation.
  • electrical wires 25 and 26 are connected in known manner to the lower ends of spring contacts 19 and 20 protrudin downwardly from the bottom of the socket portion when socket members 15, 15' are assembled together with contacts 19 and 2t) therebetween.
  • socket members 15, 15' are assembled together with contacts 19, 20 therebetween, and the entire assembly slid upwardly within candle tube 10 to a position adjacent the upper open end thereof.
  • internal projections 27 are formed in tube 10 for interlocking engagement with corresponding recesses or indentations 28 (only one of which is shown) in the outer surfaces of socket members 15, 15' to maintain the desired axial positioning of the socket in tube 10.
  • axial splines or ridges 29 are provided on the inner surface of tube 10 for engagement with axial grooves or shoulders 30, 30' on the outer surfaces of socket members 15, 15'.
  • Such projections and splines are readily molded directly with tube 10 if it is formed of plastic material and preferably a material such as a polypropylene plastic possessing some resiliency for assembling socket members 15, 15 with tube 10 as noted.
  • the base of the entire structure is formed of two generally semi-cylindrical elements 11, 11, being, in the illustrative embodiment, made to simulate a candle holder.
  • socket members 15, 15, base members 11, 11' are quite simply molded for easy assembly, preferably being formed from a chip-proof impact-resistant material such as a syrene plastic, and are held together in assembled face-to-face relation by a single rivet or other fastening means indicated at 35, inserted through holes 36, 36.
  • each of base elements 11, 11' are two pairs of semi-circular notches 37 (corresponding notches in element 11' not being shown in the drawing) for engaging, preferably in a tightly gripping manner, electrical wires 25 and 26 to provide a clamping or gripping force sufiicient to relieve inevitable pulling stresses from the soldered connection of wires 25 and 26 with electrical contacts 19 and 20.
  • a pair of diametrically opposed slots or recesses indicated at 38 (and not shown in element 11') for engaging teats or projections 39 at the lower end of candle tube 10, when base elements 11, 11 are assembled into face-to-face arrangement around tube 10, thus retaining tube 10 against axial removal from base elements 11, 11'.
  • each of base elements 11, 11 are formed corresponding parts of a spherical recess (shown only in element 11) to provide, when elements 11 and 11' are assembled together, a generally spherical socket of a ball-and-socket joint for receiving and retaining ball 46 on clamp member 13 (illustrated as a conventional spring clamp) to retain the entire lamp assembly on the branch of a Christmas tree or other support.
  • the socket assembly including socket elements 15, 15 and contact members 19 and 20 is inserted, as explained above, into candle tube 19 and retained therein as described, with lead wires 25 and 26 extending out the bottom of tube 10.
  • base elements 11, 11' are assembled together in face-to-face arrangement around the bottom of tube 10 so as to grip lead wires 25 and 26 in notches 37, to engage teats 39 in slots 38, and to engage ball 46 in socket 45. In this manner, the entire assembly is retained together by fastening rivet 35, 35 to base elements 11, 11'.
  • drip pan 12 is here provided as a ring of decorative metal such as brass, and including two depending spring clips 50, 50', serving as means for both hiding the head of rivet 35, 35 and for holding drip pan 12 in position.
  • a recess 51 is shown in the outer surface of base member 11, a similar recess being formed in base member 11, to receive, respectively, s ring clips 50 and 50 on drip pan 12.
  • recess '51 includes a wedge shaped block 52' for engaging spring clip 50'.
  • clamp-on lamps for receiving electric bulbs and in which the socket and base portions are each formed of but two readily molded interfitting pieces.
  • the interlocking means for maintaining socket elements 15, 15' in position within tube 10 and the interlocking means for maintaining tube 10 and clamp 13 assembled into base 11 all involve merely molded arrangeemnts all held together with but a single rivet to provide extremely advantageous simplicity of manufacture and assembly for enhanced economy and rigidity and long life.
  • socket elements 15, 15' and the threaded portion 16 thereof can readily be formed so as to receive and retain a light bulb having a bayonet connection or other forms of connection, instead of the conventional threaded base, without otherwise changing the ease of manufacture and assembly ad vantages hereof.
  • An electric lamp of the character described adapted for receiving an electric light bulb and for decorative use in connection with decorating Christmas trees and the like, which comprises in combination a bulb-receiving socket assembly for receiving and mechanically engaging an electric light bulb with operative electrical contact and including a pair of substantially identical interlocking socket-forming member for assembly into face-to-face relation to form said bulb-receiving socket, a decorative outer member including an axial tubular passage for receiving said bulb-receiving socket assembly in interlocking engagement, a pair of substantially identical base members for interlocking engagement in face-to-face arrangement, and fastening means for maintaining said pair of base members in assembled relation, said pair of base members including means forming an interlocking engagement with said outer member for retaining all parts of said lamp in assembled disposition upon fastening of said fastening means.
  • socket members include formed means for mechanically engaging and retaining a bulb in said bulb-receiving socket substantially independently of electrical contacts with said bulb.
  • said bulb-receiving socket assembly includes means for maintaining electrical contact with an electric light bulb engaged in said socket assembly and substantially independently of said means for engaging and mechanically retaining said bulb in said socket assembly.
  • An electric lamp as recited in claim 1 including electrical contact members for maintaining said operative electrical contact with a light bulb received therein, electric lead wires connected to said contact members and extending out through said base members, and interlocking means in said base members for gripping and holding said lead wires against pulling stresses thereon.
  • An electric lamp as recited in claim 1 including clamping means for positioning and fastening said electric lamp upon a support therefor and interlocking means on said base members for engaging said clamping means.
  • said bulb-receiving socket assembly includes means for engaging and retaining an electric light bulb having a threaded base thereon.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Handcart (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
US509860A 1964-12-11 1965-11-26 Electric lamps Expired - Lifetime US3386070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15044/64A SE306402B (de) 1964-12-11 1964-12-11

Publications (1)

Publication Number Publication Date
US3386070A true US3386070A (en) 1968-05-28

Family

ID=20300047

Family Applications (1)

Application Number Title Priority Date Filing Date
US509860A Expired - Lifetime US3386070A (en) 1964-12-11 1965-11-26 Electric lamps

Country Status (7)

Country Link
US (1) US3386070A (de)
AT (1) AT262448B (de)
DK (1) DK112807B (de)
FI (1) FI41976B (de)
GB (1) GB1121998A (de)
NO (1) NO115228B (de)
SE (1) SE306402B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622779A (en) * 1969-01-13 1971-11-23 Herbert Lagin Lighting fixtures
US3955872A (en) * 1973-04-05 1976-05-11 Dominion Auto Accessories Limited Shock resistant lamp support
EP0346969A1 (de) * 1988-06-13 1989-12-20 Koninklijke Philips Electronics N.V. Beleuchtungsanordnung
EP0638760A1 (de) * 1993-08-11 1995-02-15 GIRARD SUDRON & Cie S.A. Elektrische Kerze
USD736075S1 (en) 2013-07-08 2015-08-11 Target Brands, Inc. Ornament attachment clip
US9237820B2 (en) 2013-07-08 2016-01-19 Target Brands, Inc. Ornament assembly with attachment clip
USD889953S1 (en) 2017-08-14 2020-07-14 Target Brands, Inc. Ornament attachment cup
US10731831B2 (en) 2017-05-08 2020-08-04 Gemmy Industries Corp. Clip lights and related systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715807C2 (de) * 1977-04-07 1987-05-14 Elektromanufaktur Zangenstein Hanauer GmbH & Co, 8471 Altendorf Lampenfassung für Beleuchtungsketten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1677412A (en) * 1923-01-29 1928-07-17 Tremont Products Corp Imitative candle fitting
US1727148A (en) * 1925-05-06 1929-09-03 Fenton Fisher R Electric-lamp socket
GB767333A (en) * 1954-07-28 1957-01-30 Belling & Lee Ltd Electrical plug or socket connector
US3219966A (en) * 1963-05-06 1965-11-23 Murakami Seihachiro Structure for securing conductor element to electric connector device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1677412A (en) * 1923-01-29 1928-07-17 Tremont Products Corp Imitative candle fitting
US1727148A (en) * 1925-05-06 1929-09-03 Fenton Fisher R Electric-lamp socket
GB767333A (en) * 1954-07-28 1957-01-30 Belling & Lee Ltd Electrical plug or socket connector
US3219966A (en) * 1963-05-06 1965-11-23 Murakami Seihachiro Structure for securing conductor element to electric connector device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622779A (en) * 1969-01-13 1971-11-23 Herbert Lagin Lighting fixtures
US3955872A (en) * 1973-04-05 1976-05-11 Dominion Auto Accessories Limited Shock resistant lamp support
EP0346969A1 (de) * 1988-06-13 1989-12-20 Koninklijke Philips Electronics N.V. Beleuchtungsanordnung
US4969071A (en) * 1988-06-13 1990-11-06 U.S. Philips Corporation Illumination set
EP0638760A1 (de) * 1993-08-11 1995-02-15 GIRARD SUDRON & Cie S.A. Elektrische Kerze
FR2708988A1 (fr) * 1993-08-11 1995-02-17 Sudron Cie Sa Girard Fausse bougie.
USD736075S1 (en) 2013-07-08 2015-08-11 Target Brands, Inc. Ornament attachment clip
US9237820B2 (en) 2013-07-08 2016-01-19 Target Brands, Inc. Ornament assembly with attachment clip
USD777568S1 (en) 2013-07-08 2017-01-31 Target Brands, Inc. Ornament attachment clip
US10731831B2 (en) 2017-05-08 2020-08-04 Gemmy Industries Corp. Clip lights and related systems
USD889953S1 (en) 2017-08-14 2020-07-14 Target Brands, Inc. Ornament attachment cup

Also Published As

Publication number Publication date
DK112807B (da) 1969-01-20
FI41976B (de) 1969-12-31
NO115228B (de) 1968-09-02
GB1121998A (en) 1968-07-31
AT262448B (de) 1968-06-10
SE306402B (de) 1968-11-25

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