US2548500A - Fluorescent lighting fixture - Google Patents

Fluorescent lighting fixture Download PDF

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Publication number
US2548500A
US2548500A US99933A US9993349A US2548500A US 2548500 A US2548500 A US 2548500A US 99933 A US99933 A US 99933A US 9993349 A US9993349 A US 9993349A US 2548500 A US2548500 A US 2548500A
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United States
Prior art keywords
arms
housing
fixture
reflectors
reflector
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Expired - Lifetime
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US99933A
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Sachs Morris
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    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/031—Lighting devices intended for fixed installation of surface-mounted type the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • This invention relates to lighting fixtures, and particularly to those of the type which employ fluorescent lamps.
  • One of the objects of the invention is to provide a fixture foruse with lamps of the fluorescent type which will enable the light to be reflected upwardly or downwardly as required by the needs of each installation.
  • the invention contemplates the provision of a fixture which includes means for supporting the lamps and a reflector therefore, the reflector being adapted to be selectively positioned either above the lamps or below the same to thereby direct the light either upwardly or downwardly.
  • the invention also contemplates the provision of a fixture of relatively simple construction, including a housing for the ballast and wiring and other operative parts, whereby such parts will be enclosed and fully protected. It further includes simplified means for mounting the tubes; the reflector and other parts, rendering the fixture easy to mount according to installation requirements.
  • Fig. 1 is an end elevation of a lighting fixture constructed in accordance with the invention
  • Fig. 2 is a top plan view of the same with I parts broken away to disclose construction
  • Fig. 3 is a perspective view of one of the reflectors
  • Fig. 4 is a sectional view, taken on the line 44 of Fig. 2, looking in the direction of the arrows
  • Fig. 5 is a sectional View, taken on the line 55 of Fig. 2, looking in the direction of the arrows, and with the reflector omitted
  • Fig. 6 is a sectional view, taken on the line 6-6 of Fig. 2, looking in the direction of the arrows
  • Fig. '7 is a view similar to Fig. 6 but showing one of the reflectors positioned to reflect the light upwardly.
  • l indicates the central housing of the fixture.
  • the same is of elongated form, and while shown in a relatively plain rectangular shape for simplicity in illustration, it will be apparent that the housing may be ornamented in various ways.
  • the housing I is hollow or tubular and is used to contain the ballast, wiring and other operating elements employed in fluorescent lighting fixtures.
  • the housing In its top, the housing is formed with a central opening I2 for access to a ceiling outlet box, and holes [3 are also provided to receive the rods by which the fixture may be suspended.
  • the housing I is provided with a pair of laterally-extended, upwardly-inclined arms. Those at one end are designated at M, while the similar arms at the opposite end are designated at 5.
  • These arms are rigid extensions from the side walls 3 and 4 of the housing I, and are hollow or tubular, as will be seen in Fig. 4, and thus form conduits for wires 8 which are connected to the Wiring and ballasts contained within the housing I.
  • the wires 8 extend from sockets I attached to the inner wall 9 of each of the arms l4 and 5, the sockets receiving and supporting the fluorescent lamps I0 between the arms, as noted in Fig. 2. l
  • end plates 9 which may also serve as closures for the outer sides of the arms l4 and 5, the plates 9 being attached by screws or other fastening elements.
  • Fig. 3 Shown in Fig. 3 is one of the reflectors. This may consist of a plate of metal, plastic material, glass or other suitable material, and it consists of an elongated member I5 having a downwardlyextended front flange l6 which fits against the front end of each of the arms l4 and 5 when the reflector is in place.
  • the rear edge of each reflector, and two of the reflectors are employed, is downwardly curved, as shown at 20. This curved portion of the reflector fits against the side walls 3 and 4 of the housing as seen in Fig. 6.
  • the reflectors are shown attached to the tops of the arms l4 and 5 so'that said reflectors are located above the lamps It), thereby directing the light rays downwardly.
  • the reflectors may be attached to the arms by screws I8, passing through holes [1 in the tops of each reflector, and entering holes 22 in the arms.
  • the body of the reflector may be split near its opposite ends as shown at [9.
  • the reflectors which are shown as bridging the space between the arms l4 and 5 at the tops of said arms, may be attached to the bottoms of the arms as shown in Fig. 7 and be thus located below the lamps ID. This arrangement permits the single fixture to be used as a reflecting fixture if desired.
  • the arrangement presented is such that the wiring and lighting accessories are enclosed.
  • the bottom of the housing is closed by a plate I I which is preferably removable for access to the operating parts and wiring within the fixture.
  • the arrangement of the reflectors permits the same to be applied either above or below the lamp or lamps extending between the fixture arms, and
  • a lighting fixture comprising, a central, elongated, substantially rectangular housing, a pair of arms at each end of the housing inclined upwardly from horizontal and projecting laterally reflector at each side of the housing and sup- 20 ported by one of the arms at one end of the housing and another of the arms at the other end of the same, the reflectors being curved along one edge and provided with a flange at the other edge to fit over the ends of the arms, and means for attaching the reflectors either above or below the fluorescent lamps.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

April 10, 1951 M, s c s 2,548,500
FLUORESCENT LIGHTING FIXTURE Filed June 18, 1949 IN VEN TOR.
flzorri/o' Jacks Patented Apr. 10, 1951 UNITED STATES PATENT OFFICE Morris Sachs, New York, N. .Y.
Alwlication June 18, 1949,*Serial No. 99,933
. 1 Glalim. 1
This invention relates to lighting fixtures, and particularly to those of the type which employ fluorescent lamps. One of the objects of the invention is to provide a fixture foruse with lamps of the fluorescent type which will enable the light to be reflected upwardly or downwardly as required by the needs of each installation.
The invention contemplates the provision of a fixture which includes means for supporting the lamps and a reflector therefore, the reflector being adapted to be selectively positioned either above the lamps or below the same to thereby direct the light either upwardly or downwardly.
The invention also contemplates the provision of a fixture of relatively simple construction, including a housing for the ballast and wiring and other operative parts, whereby such parts will be enclosed and fully protected. It further includes simplified means for mounting the tubes; the reflector and other parts, rendering the fixture easy to mount according to installation requirements.
These and other objects are attained by the invention, a more particular description of which will hereinafter appear and be set forth in the claim appended hereto.
In the accompanying drawing, wherein an illustrative embodiment of the invention is disclosed, Fig. 1 is an end elevation of a lighting fixture constructed in accordance with the invention; Fig. 2 is a top plan view of the same with I parts broken away to disclose construction; Fig. 3 is a perspective view of one of the reflectors; Fig. 4 is a sectional view, taken on the line 44 of Fig. 2, looking in the direction of the arrows; Fig. 5 is a sectional View, taken on the line 55 of Fig. 2, looking in the direction of the arrows, and with the reflector omitted, Fig. 6 is a sectional view, taken on the line 6-6 of Fig. 2, looking in the direction of the arrows, and Fig. '7 is a view similar to Fig. 6 but showing one of the reflectors positioned to reflect the light upwardly.
Referring to the drawing, l indicates the central housing of the fixture. The same is of elongated form, and while shown in a relatively plain rectangular shape for simplicity in illustration, it will be apparent that the housing may be ornamented in various ways. The housing I is hollow or tubular and is used to contain the ballast, wiring and other operating elements employed in fluorescent lighting fixtures. In its top, the housing is formed with a central opening I2 for access to a ceiling outlet box, and holes [3 are also provided to receive the rods by which the fixture may be suspended.
At its opposite ends, the housing I is provided with a pair of laterally-extended, upwardly-inclined arms. Those at one end are designated at M, while the similar arms at the opposite end are designated at 5. These arms are rigid extensions from the side walls 3 and 4 of the housing I, and are hollow or tubular, as will be seen in Fig. 4, and thus form conduits for wires 8 which are connected to the Wiring and ballasts contained within the housing I. The wires 8 extend from sockets I attached to the inner wall 9 of each of the arms l4 and 5, the sockets receiving and supporting the fluorescent lamps I0 between the arms, as noted in Fig. 2. l
The opposite ends of the housing I are closed by end plates 9, which may also serve as closures for the outer sides of the arms l4 and 5, the plates 9 being attached by screws or other fastening elements.
Shown in Fig. 3 is one of the reflectors. This may consist of a plate of metal, plastic material, glass or other suitable material, and it consists of an elongated member I5 having a downwardlyextended front flange l6 which fits against the front end of each of the arms l4 and 5 when the reflector is in place. The rear edge of each reflector, and two of the reflectors are employed, is downwardly curved, as shown at 20. This curved portion of the reflector fits against the side walls 3 and 4 of the housing as seen in Fig. 6.
In Figs. 1, 2 and 6 of the drawing, the reflectors are shown attached to the tops of the arms l4 and 5 so'that said reflectors are located above the lamps It), thereby directing the light rays downwardly. The reflectors may be attached to the arms by screws I8, passing through holes [1 in the tops of each reflector, and entering holes 22 in the arms. To facilitate the downward curve of the reflector at the rear edge, the body of the reflector may be split near its opposite ends as shown at [9.
When it is desired to direct the rays of light upwardly, the reflectors, which are shown as bridging the space between the arms l4 and 5 at the tops of said arms, may be attached to the bottoms of the arms as shown in Fig. 7 and be thus located below the lamps ID. This arrangement permits the single fixture to be used as a reflecting fixture if desired.
The arrangement presented is such that the wiring and lighting accessories are enclosed. The bottom of the housing is closed by a plate I I which is preferably removable for access to the operating parts and wiring within the fixture. The arrangement of the reflectors permits the same to be applied either above or below the lamp or lamps extending between the fixture arms, and
the slight upward inclination of the arms provides a fixture of pleasing appearance and design.
Having described one embodiment of the invention, it is obvious that the same is not to be restricted thereto, but is broad enough to cover all structures coming within the scope of the annexed claim.
What I claim is:
A lighting fixture comprising, a central, elongated, substantially rectangular housing, a pair of arms at each end of the housing inclined upwardly from horizontal and projecting laterally reflector at each side of the housing and sup- 20 ported by one of the arms at one end of the housing and another of the arms at the other end of the same, the reflectors being curved along one edge and provided with a flange at the other edge to fit over the ends of the arms, and means for attaching the reflectors either above or below the fluorescent lamps.
MORRIS SACHS.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,285,001 Wilson June 2, 1942 2,331,811 Sprecher Oct. 12, 1943 2,381,630 Wakefield Aug. '7, 1945 2,399,531 Young Apr. 30, 1946
US99933A 1949-06-18 1949-06-18 Fluorescent lighting fixture Expired - Lifetime US2548500A (en)

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Application Number Priority Date Filing Date Title
US99933A US2548500A (en) 1949-06-18 1949-06-18 Fluorescent lighting fixture

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Application Number Priority Date Filing Date Title
US99933A US2548500A (en) 1949-06-18 1949-06-18 Fluorescent lighting fixture

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US2548500A true US2548500A (en) 1951-04-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285001A (en) * 1938-11-07 1942-06-02 Wilson Wesley Lighting fixture
US2331811A (en) * 1942-08-31 1943-10-12 Peter W Sprecher Lighting fixture
US2381630A (en) * 1942-09-16 1945-08-07 F W Wakefield Brass Company Lighting fixture
US2399531A (en) * 1943-08-23 1946-04-30 Gen Electric Fixture for tubular lamps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285001A (en) * 1938-11-07 1942-06-02 Wilson Wesley Lighting fixture
US2331811A (en) * 1942-08-31 1943-10-12 Peter W Sprecher Lighting fixture
US2381630A (en) * 1942-09-16 1945-08-07 F W Wakefield Brass Company Lighting fixture
US2399531A (en) * 1943-08-23 1946-04-30 Gen Electric Fixture for tubular lamps

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