US2259152A - Lighting fixture - Google Patents
Lighting fixture Download PDFInfo
- Publication number
- US2259152A US2259152A US354525A US35452540A US2259152A US 2259152 A US2259152 A US 2259152A US 354525 A US354525 A US 354525A US 35452540 A US35452540 A US 35452540A US 2259152 A US2259152 A US 2259152A
- Authority
- US
- United States
- Prior art keywords
- elements
- shield
- flanges
- lamp
- behind
- 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
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Classifications
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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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/005—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
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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
- F21V3/00—Globes; Bowls; Cover glasses
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Oct. 14, 1941.
, H. 'J. CLASPY LIGHTING FIXTURE Filed Au 28, 1940 INVENTOR Patented on. 14, 1941- UNITED STATES PATENT OFFICE.
LIGHTING FIXTURE .Hugh J. Claspy, Monaca, Pa., assignor to Phoenix Glass Company, Monaca, Pm, a corporation or West Virginia Application August as, 1940, Serial No. 354,525
3 Claims. (01. 240-128) Myinvention relates to lighting fixtures andmore particularly to light transmission shields of glass or other transparent or semi-transparent material for enclosing or shielding fluorescent lamp tubes or other types of lamp tubes.
Briefly stated, my invention comprises a shield or trough of glass or the like, together with means for supporting it in position beneath a lamp tube or tubes, in an improved manner, and constitutes a modification of the invention disclosed in my application Serial No. 354,526, filed August 28, 1940.
- shield of length sufficient to cover the, lamp One object of my invention is to provide a shield and a holder of such form that they can readily be applied to various standard forms of lamp structures, and whereby the shield can easily be applied and removed, without the ne- 1 whereupon the element can be slid slightly in the direction indicated by the arrow it, because cessity of operating holding screws or metal clips, or similar devices.
Another object of my invention is to provide an arrangement whereby stock lengths of shield elements can be employed in connection with lamp tubes of various lengths, rendering unnecessary the forming of shield elements of certain particular lengths'to flt over each of various lengths of lamp tubes.
As shown in the accompanying drawing, Figure 1 is a cross-sectional view through an illumisockets and bracket elements I and 8 that are in turn supported from a ceiling by hanger rods 6 that may serve as wiring conduits, in any of well known conventional ways, the wiring and other detail parts being omitted herefrom, since they form no part of my invention.
A holder 9 which also serves as a cover-plate,
3 is supported by the bracket element 8 and extending throughout the length of the tube 5, it being understood that it is common practice to employ a plurality of lamp tubes 5 in a single unit. The member 9 is of generally channel form and has flanges I0 and H for supporting the shield. h
The shield-is shown as composed, of a plurality of elements I2, formed of glass or other transparent or transluscent material, such asvarious ofthe molded plastics. The elements l2 are shown as provided with ribs, flutes .or the tubes, which tubes are made in various lengths. Each unit I! has flanges it formed on its longitudinal edges, for engagement with the flanges or ledges Hi and H, so that vertical sup-- port is thereby provided for the elements. The flanges ll are of such width that they will not become dislodged from the flanges l0 and II through sidewise sliding or shifting of the elements. When it is desired to remove an element l2 from the holder 9,. one side thereof is raised a slight distance, as indicated by the arrow I5,
01' the clearance provided at I! beneath the flange It. By this combined lifting and lateral sliding movement at one edge of the unit II, the flange M at the opposite edge will be shifted clear of the ledge H, whereupon that side of the element IZ-can be lowered out of the holder 9 and the element thus removed from the holder.
Adjacent ends of the elements I2 are recessed or flanged as shown at [8, to receive the flanges of a joining ring or yoke l9, that is of T-shape in cross section, the leg or stem 20 of the member l9 extending between the extremities of adjacent elements l2. The member l9 has a flange 2| formed on each of its ends, corresponding to the flanges II at the front and rear edges of the elements l2. These yokes 19 are inserted and removed irom the holders by a combined raising, lateral shifting and tilting movement, as are the elements l2. Ordinarily they will be placed in position after the elements l2 are inserted in the holder. Also, after removal of one element the yokes can he slid longitudinally of the ledges, to free an adjacent element for removal. Also, the shield elements can be slid longitudinally relative to the yokes. To provide continuity of pattern or appearance when desired, the yokes 19 have ribs or flutes 22 formed thereon in longitudinal alignment with the flutes and ribs 13.
The yokes or joining elements II Unceal the space which would otherwise be present between adjacent ends or the elements l2 and also obstructs the light rays which would otherwise pass between such ends, as well as assisting in keeping out dust. The endmost shield elements l2 have and walls 23 formed thereon, but end walls of metal plates or the like can be employed for closing the extremities of the shield.
I claim as my invention:
1. A lamp shielding device comprising horizontally-disposed shield-holding flanges and means for supporting them at opposite sides of a lamp, outwardly-bowed shield elements of trough-like form having their longitudinal edges disposed behind the said flanges and outwardly-bowed joining elements having their extremities disposed behind sald flanges, the adjacent ends of the shield elements extending behind the joining elements,
- and clearance being provided between the inner-.
holding flange, to permit removal of the said elements from the shield-holding flanges.
2. A lamp shielding device comprising horizontally-disposed shield-holding flanges and means for supporting them at opposite sides of a lamp, outwardly-bowed shield elements of trough-like form having their" longitudinal edges disposed behind the said flanges, and outwardly-bowed joining elements having their extremities disposed behind said flanges, thetadjacent ends of the shield elements extending behind the Joining elements, and clearance being provided between the innermost edges of said flanges and the adjacentsides of the shield elements and joining elements, along lines spaced downwardly from their said edges and extremities, whereby when one edge of each element is lifted a slight distance, said element-can he slid laterally to move the opposite edge thereof from behind its associated shield-holding flange, to permit'removal of the said elements from the shield-holding flanges. the said elements being slidable longitudinally on said flanges.
3. A lamp shielding device comprising horizontally-disposed shield-holding flanges and means for supporting. them atopposite sides of a lamp, outwardly-bowed shield elements of trough-like form having their longitudinal edges disposed behind the said flanges, and outwardly-bowed joining elements having their extremities disposed 'behind said flanges, the adjacent ends of the shield elements extending behind the joining elements, and longitudinal depressions being provided in the sides of said elements, along lines spaced below their said edges and extremities, whereby when one edge of each element is lifted a slight distance, said element can be slid laterally to move the opposite edge thereof from behind its associated shield-holding flange, to permit removal of the said elements from the shieldholding flanges, the said elements being slidable longitudinally on said flanges.
HUGH J. CLASPY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US354525A US2259152A (en) | 1940-08-28 | 1940-08-28 | Lighting fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US354525A US2259152A (en) | 1940-08-28 | 1940-08-28 | Lighting fixture |
Publications (1)
Publication Number | Publication Date |
---|---|
US2259152A true US2259152A (en) | 1941-10-14 |
Family
ID=23393721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US354525A Expired - Lifetime US2259152A (en) | 1940-08-28 | 1940-08-28 | Lighting fixture |
Country Status (1)
Country | Link |
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US (1) | US2259152A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2465141A (en) * | 1944-11-15 | 1949-03-22 | F W Wakefield Brass Company | Lighting fixture for tubular lamps |
US2525315A (en) * | 1945-10-20 | 1950-10-10 | Safety Car Heating & Lighting | Lighting fixture |
US2570907A (en) * | 1947-04-12 | 1951-10-09 | Patent License Corp | Car lighting structure |
US2595771A (en) * | 1946-10-18 | 1952-05-06 | Cav Ltd | Electric fixture for elongated tubular lamps |
US2740216A (en) * | 1953-07-21 | 1956-04-03 | Lieberman Sol | Fluorescent lamp shade |
US2744190A (en) * | 1950-08-02 | 1956-05-01 | Kilemnik Maurice | Light diffusing screens for electric discharge tubes |
DE960220C (en) * | 1953-11-03 | 1957-03-21 | Licentia Gmbh | Screwless device for the sealing attachment of covers to moisture-proof lights for tubular fluorescent lamps |
US2833916A (en) * | 1953-05-25 | 1958-05-06 | Gen Electric | Luminaire |
US2977460A (en) * | 1957-06-12 | 1961-03-28 | Holophane Co Inc | Lighting unit |
US3120929A (en) * | 1960-03-31 | 1964-02-11 | Curtis Electro Lighting Inc | Fluorescent lighting fixture |
US20050201108A1 (en) * | 2004-03-12 | 2005-09-15 | Hubbardton Forge | Weather resistant lighting fixture |
-
1940
- 1940-08-28 US US354525A patent/US2259152A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2465141A (en) * | 1944-11-15 | 1949-03-22 | F W Wakefield Brass Company | Lighting fixture for tubular lamps |
US2525315A (en) * | 1945-10-20 | 1950-10-10 | Safety Car Heating & Lighting | Lighting fixture |
US2595771A (en) * | 1946-10-18 | 1952-05-06 | Cav Ltd | Electric fixture for elongated tubular lamps |
US2570907A (en) * | 1947-04-12 | 1951-10-09 | Patent License Corp | Car lighting structure |
US2744190A (en) * | 1950-08-02 | 1956-05-01 | Kilemnik Maurice | Light diffusing screens for electric discharge tubes |
US2833916A (en) * | 1953-05-25 | 1958-05-06 | Gen Electric | Luminaire |
US2740216A (en) * | 1953-07-21 | 1956-04-03 | Lieberman Sol | Fluorescent lamp shade |
DE960220C (en) * | 1953-11-03 | 1957-03-21 | Licentia Gmbh | Screwless device for the sealing attachment of covers to moisture-proof lights for tubular fluorescent lamps |
US2977460A (en) * | 1957-06-12 | 1961-03-28 | Holophane Co Inc | Lighting unit |
US3120929A (en) * | 1960-03-31 | 1964-02-11 | Curtis Electro Lighting Inc | Fluorescent lighting fixture |
US20050201108A1 (en) * | 2004-03-12 | 2005-09-15 | Hubbardton Forge | Weather resistant lighting fixture |
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