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US2041847A - Adjustable duplex electric lamp - Google Patents

Adjustable duplex electric lamp Download PDF

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Publication number
US2041847A
US2041847A US828435A US2041847A US 2041847 A US2041847 A US 2041847A US 828435 A US828435 A US 828435A US 2041847 A US2041847 A US 2041847A
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US
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Grant
Patent type
Prior art keywords
ball
fig
arm
lamp
member
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
Inventor
Marchand Adolph
Original Assignee
Marchand Adolph
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.)
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Publication date
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • F21V21/26Pivoted arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • F21V21/26Pivoted arms
    • F21V21/28Pivoted arms adjustable in more than one plane
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00Pipe joints or couplings
    • Y10S285/907Electrical fixtures
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32008Plural distinct articulation axes
    • Y10T403/32032Plural ball and socket
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32549Articulated members including limit means
    • Y10T403/32557Articulated members including limit means for pivotal motion
    • Y10T403/32581Pin and slot
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/32Articulated members
    • Y10T403/32606Pivoted
    • Y10T403/32631Universal ball and socket
    • Y10T403/32737Universal ball and socket including liner, shim, or discrete seat
    • Y10T403/32762Spring-biased seat opposite ball stud

Description

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Many 11??? H36. MARCH/AND ADJUSTABLE DUPLEX ELECTRIC LAMP .2 Sheets-Sheet l Filed Feb. 26, 1935 IN V EN TOR;

A TTORNEY D N A H C R A M n A ADJUSTABLE DUPLEX ELECTRIC LAMP Filed Feb. 26, 1935 2 Sheets-Sheet' 2 Lll'lul A TTORNEY Patented May 26, 1936 UNITED ADJUS-IKBLE DUPLEX ELECTRIC Adolph Marcha-nd, Jackson HeightS,N Y; Application February 26, 1935,: Serial? No; 8,284

1 Claim.

The objectof the present invention is to provide an adjustable duplex electric lamp of the type particularly adapted for use on a night table or console for illumination at opposite sides of 5 the lamp base, the lamp being adapted for use between twin beds and as a reading lamp for either bed. A wide range of adjustment is provided for the lamp together with means for controlling such adjustment so that the conducting 10 wires may not be given abnormal bending or twisting which may result in short circuits through breaking of insulation, or detachment.

The invention will be described with reference to the accompanying drawings, in which:-

Fig. l is a view in elevation of an embodiment of the invention.

Fig. 2 is a fragmentary plan view of the base.

Fig. 3 is a side view of the base.

Fig. 4 is an enlarged elevation of the base, 20 partly broken away in vertical section.

Fig. 5 is an enlarged View in elevation of the upper portion of one arm and its immediately connected parts, said upper portion being shown in section.

Fig. 6 illustrates in elevation the lower end of a supporting arm, the base socket area, the arm supporting ball and the members which serve to hold the ball and the socket under spring tension.

Fig. 7 is a transverse section taken generally on the line 1-4, Fig. 5.

Fig. 8 is a plan view of the ball, socket and spring tension elements for one of the two lampholding arms, the parts being shown in position for assembly.

ferent position.

Referring to the drawings, it will be seen that the embodiment therein shown comprises a novel type of base member I having two vertical cylin- 40 drical chambers a and b rising from which is a dome Ia: closing each chamber except for a passageway of special construction later to be described.

The upper end of each chamber is rounded in conformity with a ball member 2 disposed therein. Below the ball member may be placed a washer 3 having an aperture conforming to the shape of the ball, and. the washer receives pressure of the spring 4 having its lower end abutting a plug threaded within the lower end of the chamber. The tension of the spring in each case may be adjusted by rotating the appropriate plug 5.

Each ball 2 is provided with an upwardly projecting shouldered neck 2a: threaded above the Fig. 9 shows the ball member of Fig. 8 in a dif-- shoulder. The ball, neck and spring supporting plug are centrally apertured to permit the passage of the electric conductor 6 from a suitable switch, indicated at I.

Secured upon each of the two ball necks 2a: is the threaded lower end of an arm 8, the arm in each case being longitudinally apertured, in usual practice, to permit the passage of the conductor 6.

The upper end of each arm 8 is, as shown in Fig. 5, threaded to receive an externally threaded nipple 9. Threaded upon nipple 9 is a sleeve In which at its outer end is threaded to receive a socket member I l. Within the socket member is disposed a ball l3 having a shouldered threaded neck l4 upon which lamp socket I5 is secured. The end of the arm may receive an ornamental shell l6 and upon the ball neck may be mounted a second and larger ornamental shell I! disposed rearw-ardly of a shade I8 for the lamp l9. Within sleeve Ill may be disposed a washer 2|] rearwarclly of which is a coil spring 2!. The washer will be apertured and the bearing face abutting the ball will be shaped in conformity with the latter.

By reference to Figs. 4 and 6, it will be seen that the surface of the ball 2 is formed with a channel at o shaped in the same formation as the channel c of ball I3, Fig. 8. The channel is roughly triangular and corresponds generally with the formation of aperture d in dome in: of base member I. The wall of dome aperture 11 serves to guide the appropriate ball neck 21:: carrying arm 8 from the position shown in Fig. 1 downwardly in a vertical plane and thence to the left or to the right until the neck strikes the lower right or left hand wall of the said aperture d, the wall affording a stop. The bottom wall of aperture d may have a central rise, shown in the drawings, so that the arm is better held in right or left hand position and must be given a slight upward movement prior to adjustment from right to left or vice versa. These adjustments may freely be made by partial rotation of the ball 2 appropriate to the arm moved in said adjustment, rotation of the arm, on any axial point being prevented by a stud screw 22 threaded in the dome, the stud entering channel 0* and being adapted for abutment by the continuous side wall of the channel.

A stud screw 23 similar to 22 is carried by ball socket member ll, carried at the upper end of arm 8, the stud of screw 23 entering the channel c of ball I3 and being adapted for abutment by the side wall of said channel.

When the lamp is moved downwardly on arm 8, corresponding movement of ball l3 will so position channelway c with respect to screw stud 22 that the lamp elements may be adjusted with the ball to the left or to the right in addition to the vertical adjustment. At the same time, the axial movement of the ball is limited and the wiring is protected against abnormal twisting and breaking strain.

By reason of the combined adjustment, the light may be directed to a wide range of positions without strain upon the wiring or connections notwithstanding the fact that the wiring is entirely concealed within the lamp. For example, one of the arms 8 may be adjusted to illuminate reading matter or an object whilst the second arm remains in such position as to give general illumination. Also both arms may be brought forwardly from the dotted line position shown in Fig. 4 and the lighting elements moved toward each other and given a desired adjustment for simultaneous illumination of readin matter, or an object.

Having described my invention, what I claim and desire to secure by Letters Patent, is as follows:-

In an adjustable electric lamp comprising a base member and an upwardly extending chamber formed in said base member, of a dome surmounting said chamber, said dome being formed with an aperture having a relatively wide bottom guiding wall and side walls converging above said bottom wall, a ball member in said chamber having a surface depression similar in conformation to the aperture of said dome area, a stud carried by the dome and entering the ball surface depression, and an illuminating means carried by said ball.

ADOLPH MARCHAND.

US2041847A 1935-02-26 1935-02-26 Adjustable duplex electric lamp Expired - Lifetime US2041847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2041847A US2041847A (en) 1935-02-26 1935-02-26 Adjustable duplex electric lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2041847A US2041847A (en) 1935-02-26 1935-02-26 Adjustable duplex electric lamp

Publications (1)

Publication Number Publication Date
US2041847A true US2041847A (en) 1936-05-26

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US2041847A Expired - Lifetime US2041847A (en) 1935-02-26 1935-02-26 Adjustable duplex electric lamp

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439009A (en) * 1943-10-29 1948-04-06 Thurner Engineering Company Flexible joint
US2456182A (en) * 1946-02-01 1948-12-14 Fostoria Pressed Steel Corp Flexible joint assembly
US2472624A (en) * 1943-07-10 1949-06-07 Naras Res Inc Work lamp support
US2566042A (en) * 1947-06-25 1951-08-28 American Automatic Devices Co Ball and socket mounting for rearview mirrors and the like
US2643144A (en) * 1950-08-03 1953-06-23 Naras Res Inc Swivel unit
US2746355A (en) * 1952-11-10 1956-05-22 John R Wells Inside adjustable rearview mirror for automobiles
US2776168A (en) * 1954-09-20 1957-01-01 Rufin L Schweda Extension and telescoping attachment for nozzle of showers
US2890067A (en) * 1954-03-22 1959-06-09 Louis H Morin Universal lamp swivel connectors
US2999150A (en) * 1957-08-12 1961-09-05 Wemac Company Adjustably mounted panel light
US3034809A (en) * 1960-08-08 1962-05-15 Greenberg Harold Jay Universal ball and socket joint
US4043686A (en) * 1976-06-03 1977-08-23 Snotrix Division Of Pittway Corporation Stabilized ball joint
US4999756A (en) * 1990-05-29 1991-03-12 Lee Hsuan Yu Desk lamp with adjustable lights
US5086379A (en) * 1989-07-31 1992-02-04 Intermatic Incorporated Low voltage outdoor floodlight having adjustable beam pattern, ball and socket mounting, and novel cable handling
US5620247A (en) * 1995-12-29 1997-04-15 Lamps Plus, Inc. Torchiere lamp having separate twin flex task light
US20060065795A1 (en) * 2004-09-30 2006-03-30 Compx International Support for flat monitors
WO2007036761A1 (en) * 2005-09-29 2007-04-05 Brief Yancu Solomovitz Articulated arm with adjustable, spring loaded joints
US7210811B1 (en) * 2005-01-06 2007-05-01 Lamps Plus, Inc. Ceiling mounted swing arm lighting apparatus
US20110318702A1 (en) * 2010-06-23 2011-12-29 Lockwood Robin R Dental Shield Apparatus
US20160109046A1 (en) * 2014-10-21 2016-04-21 James M. Lee Modular Conduit System
US20160186966A1 (en) * 2014-12-26 2016-06-30 Mao-Song Shen Movable ball-shape connector for lighting fixture

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472624A (en) * 1943-07-10 1949-06-07 Naras Res Inc Work lamp support
US2439009A (en) * 1943-10-29 1948-04-06 Thurner Engineering Company Flexible joint
US2456182A (en) * 1946-02-01 1948-12-14 Fostoria Pressed Steel Corp Flexible joint assembly
US2566042A (en) * 1947-06-25 1951-08-28 American Automatic Devices Co Ball and socket mounting for rearview mirrors and the like
US2643144A (en) * 1950-08-03 1953-06-23 Naras Res Inc Swivel unit
US2746355A (en) * 1952-11-10 1956-05-22 John R Wells Inside adjustable rearview mirror for automobiles
US2890067A (en) * 1954-03-22 1959-06-09 Louis H Morin Universal lamp swivel connectors
US2776168A (en) * 1954-09-20 1957-01-01 Rufin L Schweda Extension and telescoping attachment for nozzle of showers
US2999150A (en) * 1957-08-12 1961-09-05 Wemac Company Adjustably mounted panel light
US3034809A (en) * 1960-08-08 1962-05-15 Greenberg Harold Jay Universal ball and socket joint
US4043686A (en) * 1976-06-03 1977-08-23 Snotrix Division Of Pittway Corporation Stabilized ball joint
US5086379A (en) * 1989-07-31 1992-02-04 Intermatic Incorporated Low voltage outdoor floodlight having adjustable beam pattern, ball and socket mounting, and novel cable handling
US4999756A (en) * 1990-05-29 1991-03-12 Lee Hsuan Yu Desk lamp with adjustable lights
US5620247A (en) * 1995-12-29 1997-04-15 Lamps Plus, Inc. Torchiere lamp having separate twin flex task light
US20060065795A1 (en) * 2004-09-30 2006-03-30 Compx International Support for flat monitors
US7210811B1 (en) * 2005-01-06 2007-05-01 Lamps Plus, Inc. Ceiling mounted swing arm lighting apparatus
WO2007036761A1 (en) * 2005-09-29 2007-04-05 Brief Yancu Solomovitz Articulated arm with adjustable, spring loaded joints
US20090272866A1 (en) * 2005-09-29 2009-11-05 Yancu Solomovitz Brief Articulted Arm With Adjustable, Spring Loaded Joints
US7753330B2 (en) 2005-09-29 2010-07-13 Yancu Solomovitz Brief Adjustable articulated arm for cellular stands for use in vehicles
US20110318702A1 (en) * 2010-06-23 2011-12-29 Lockwood Robin R Dental Shield Apparatus
US8267147B2 (en) * 2010-06-23 2012-09-18 Lockwood Robin R Dental shield apparatus
US20160109046A1 (en) * 2014-10-21 2016-04-21 James M. Lee Modular Conduit System
US9810349B2 (en) * 2014-10-21 2017-11-07 James M. Lee Modular conduit system
US20160186966A1 (en) * 2014-12-26 2016-06-30 Mao-Song Shen Movable ball-shape connector for lighting fixture

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