US2492852A - Portable lighting fixture - Google Patents

Portable lighting fixture Download PDF

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Publication number
US2492852A
US2492852A US688791A US68879146A US2492852A US 2492852 A US2492852 A US 2492852A US 688791 A US688791 A US 688791A US 68879146 A US68879146 A US 68879146A US 2492852 A US2492852 A US 2492852A
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United States
Prior art keywords
chassis
fixture
lighting fixture
portable lighting
lamp
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
US688791A
Inventor
Harold D Fine
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to US688791A priority Critical patent/US2492852A/en
Application granted granted Critical
Publication of US2492852A publication Critical patent/US2492852A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
    • F21L14/02—Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
    • F21L14/02—Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps
    • F21L14/026—Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps having a linear light source
    • 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 electric lighting devices and particularly to portable type lighting fixtures.
  • a further object of the invention is to provide a portable type of lamp which is of small size adapted to reach inaccessible places but of sufficiently high light output to provide eflicient working conditions.
  • a further object of the invention is to provide a portable lighting device having a maximum degree of protection against mechanical damage and having a minimum weight.
  • a further object of the invention is to provide a portable lighting fixture having means whereby it may be temporarily used as an installed fixture.
  • Figure 1 is a perspective view of a fixture embodyin the invention
  • Figure 2 is a longitudinal sectional view of the fixture
  • Figure 3 is cross section on line 33 Figure 2;
  • Figure 4 is an end view of the fixture showing the manner in which it may be temporarily installed upon a wall
  • Figure 5 is a perspective view of the holding device for installing the fixture as shown in Figure 4.
  • the fixture utilizes a fluorescent lamp i as its source of illumination.
  • the lamp is supported in lamp holders 2 secured to a chassis 3.
  • the chassis 3 is of rigid construction and is composed of upper and lower elongated relatively narrow members 4 and 5 which are channel shaped in cross section.
  • the upper section 4 presents a top reflector surface 6.
  • the lower section 5 is received within the sides of the channel 4 and presents a bottom wall 1 for the chassis.
  • the portions 4 and 5 fit tightly together and may be further secured in any desired manner.
  • Screws 8 are provided to secure control switches 9 to the inner face of one wall of the reflector.
  • the switches 9 have their control members projecting outward and function in the conventional manner in connection with suitable wiring, not shown, to start and stop the operation of the lamp.
  • the member 5 is provided with laterally pro- 2 jecting bead portions I0 desirably but not necessarily situated in the plane of the bottom 1 and may extend for the full length of the chassis or for a portion of the length thereof.
  • a combined cover and protector member II is drawn from sheet metal and is provided with integral side and end portions embracing and substantially covering the chassis, the bottom edge of its side portions l2 desirably bearing against the beads Ill.
  • the member II is drawn from one piece of sheet metal and desirably presents a rigid and streamlined form shown in F18- ure 1.
  • the upper partion of the member II is provided with light openings l2 arranged to present protective grill bars l3.
  • the cover member I I may be secured to the chassis in any desired manner. As shown herein one end wall thereof is provided with a locking lip I4 which is projected into a slot IS in the end wall of the chassis thus securing one end of the member II to one end of the chassis. The other end of the member II is secured to the chassis by means of a screw l6 having threaded en agement with the chassis end wall. A suitable hook I! is provided by means of which the device may be hung up during use thereof or when not in use.
  • a feature of the invention is the provision of means for temporarily installing the fixture in a preselected location as upon the wall l8 shown in Figure 4.
  • a spring clip I9 is provided which embraces the bottom of the lamp and has clip portions 20 at its ends which interlock with the beads I 0 on the fixture chassis.
  • the clip is held on the wall by a screw 2
  • the clip may be positioned to hold the fixture horizontally or vertically.
  • the fixture is shown in a horizontal position and if desired a shade 22 may be provided which cuts off light from a portion of the lamp and permits light to shine downward.
  • the shade 22 also acts as a reflector to project the light in a given direction as well as shading it from the eyes which may be desirable for certain kinds of work.
  • the shade is provided with lips 23 one of which slips over the bottom edge of the chassis and the other clips upon the longitudinal grill bar 24.
  • the fixture may readily be disconnected from the clip and is immediately available for use in lighting diiiicult locations as when working in and about an automobile or aeroplane.
  • the member ll may be constructed with its lower side portions partially cut away at the area within the dotted lines indicated at 25 in Figure 1 thus to improve its economy of production.
  • An armored type portable fluorescent lighting fixture comprising a hollow elongated chassis having a channel shaped upper portion presenting a reflector surface and a channel shaped lower portion fitting within the upper portion and having laterally projecting beads alon its sides, said chassis having a slot in one end wall thereof and a threaded aperture in the other end wall thereof, lampholders secured to the chassis, a unitary cover member of sheet metal having light openings therein arranged to present protective grill bars, said cover having unperforated integral side and end portions extending down to envelop said chassis and engage chassis.

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

Description

Dec. 27, 1949 H. D. FINE 2,492,852
PORTABLE LIGHTING FIXTURE Filed Aug. 6, 1946 .'i INVENTOR.
2 g'ljarnld 3L Efifne I 5 BY :7 2 W M,
A TTORNE Y Patented Dec. 27, 1949 PORTABLE LIGHTING FIXTURE Harold D. Fine, Beverly, Mass., assignor to Sylvania Electric Products Inc., Salem, Mass., a corporation of Massachusetts Application August 6, 1946, Serial No. 688,791
1 Claim.
This invention relates to electric lighting devices and particularly to portable type lighting fixtures.
It is an object of the invention to provide a portable lamp adapted to use fluorescent illumination. I
A further object of the invention is to provide a portable type of lamp which is of small size adapted to reach inaccessible places but of sufficiently high light output to provide eflicient working conditions.
A further object of the invention is to provide a portable lighting device having a maximum degree of protection against mechanical damage and having a minimum weight.
A further object of the invention is to provide a portable lighting fixture having means whereby it may be temporarily used as an installed fixture.
To provide a better understanding of the invention a particular embodiment thereof will be described and illustrated in the drawings in which:
Figure 1 is a perspective view of a fixture embodyin the invention;
Figure 2 is a longitudinal sectional view of the fixture;
Figure 3 is cross section on line 33 Figure 2;
Figure 4 is an end view of the fixture showing the manner in which it may be temporarily installed upon a wall; and
Figure 5 is a perspective view of the holding device for installing the fixture as shown in Figure 4.
The fixture utilizes a fluorescent lamp i as its source of illumination. The lamp is supported in lamp holders 2 secured to a chassis 3. The chassis 3 is of rigid construction and is composed of upper and lower elongated relatively narrow members 4 and 5 which are channel shaped in cross section. The upper section 4 presents a top reflector surface 6. The lower section 5 is received within the sides of the channel 4 and presents a bottom wall 1 for the chassis. The portions 4 and 5 fit tightly together and may be further secured in any desired manner. Screws 8 are provided to secure control switches 9 to the inner face of one wall of the reflector. The switches 9 have their control members projecting outward and function in the conventional manner in connection with suitable wiring, not shown, to start and stop the operation of the lamp.
The member 5 is provided with laterally pro- 2 jecting bead portions I0 desirably but not necessarily situated in the plane of the bottom 1 and may extend for the full length of the chassis or for a portion of the length thereof.
A combined cover and protector member II is drawn from sheet metal and is provided with integral side and end portions embracing and substantially covering the chassis, the bottom edge of its side portions l2 desirably bearing against the beads Ill. The member II is drawn from one piece of sheet metal and desirably presents a rigid and streamlined form shown in F18- ure 1. The upper partion of the member II is provided with light openings l2 arranged to present protective grill bars l3.
The cover member I I may be secured to the chassis in any desired manner. As shown herein one end wall thereof is provided with a locking lip I4 which is projected into a slot IS in the end wall of the chassis thus securing one end of the member II to one end of the chassis. The other end of the member II is secured to the chassis by means of a screw l6 having threaded en agement with the chassis end wall. A suitable hook I! is provided by means of which the device may be hung up during use thereof or when not in use.
A feature of the invention is the provision of means for temporarily installing the fixture in a preselected location as upon the wall l8 shown in Figure 4. To detachably secure the lamp a spring clip I9 is provided which embraces the bottom of the lamp and has clip portions 20 at its ends which interlock with the beads I 0 on the fixture chassis. The clip is held on the wall by a screw 2| or in any suitable manner. The clip may be positioned to hold the fixture horizontally or vertically.
In the drawing the fixture is shown in a horizontal position and if desired a shade 22 may be provided which cuts off light from a portion of the lamp and permits light to shine downward. The shade 22 also acts as a reflector to project the light in a given direction as well as shading it from the eyes which may be desirable for certain kinds of work. The shade is provided with lips 23 one of which slips over the bottom edge of the chassis and the other clips upon the longitudinal grill bar 24.
If it is desired to use the fixture as a portable lamp it may readily be disconnected from the clip and is immediately available for use in lighting diiiicult locations as when working in and about an automobile or aeroplane.
If desired the member ll may be constructed with its lower side portions partially cut away at the area within the dotted lines indicated at 25 in Figure 1 thus to improve its economy of production.
What I claim is:
An armored type portable fluorescent lighting fixture comprising a hollow elongated chassis having a channel shaped upper portion presenting a reflector surface and a channel shaped lower portion fitting within the upper portion and having laterally projecting beads alon its sides, said chassis having a slot in one end wall thereof and a threaded aperture in the other end wall thereof, lampholders secured to the chassis, a unitary cover member of sheet metal having light openings therein arranged to present protective grill bars, said cover having unperforated integral side and end portions extending down to envelop said chassis and engage chassis.
HAROLD D. FINE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,3153% Heinrich Sept. 9, 1919 1,484,211 Erikson Feb. 19, 1924 2,291,491 Naysmith July 28, 1942 2,315,884 Vendope Apr. 6, 1943 2,391,825 Maurette Dec. 18, 1945
US688791A 1946-08-06 1946-08-06 Portable lighting fixture Expired - Lifetime US2492852A (en)

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US2492852A true US2492852A (en) 1949-12-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597060A (en) * 1947-06-12 1952-05-20 Moe Brothers Mfg Company Channeled tube light fixture with housed yieldable socket means
USD244794S (en) * 1976-05-24 1977-06-21 Control Products Inc. Explosion proof fluorescent lamp for mines or the like
US6318613B1 (en) 2000-02-22 2001-11-20 Annette K. Underhill Carrying pouch attachable to garments

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315494A (en) * 1919-09-09 Walter a
US1484211A (en) * 1921-08-17 1924-02-19 Erikson Leonard Showcase reflector
US2291491A (en) * 1941-01-31 1942-07-28 Miller Co Combined wiring conduit and fluorescent lamp fixture
US2315884A (en) * 1942-09-25 1943-04-06 Van L Vendope Lighting equipment
US2391325A (en) * 1943-03-29 1945-12-18 Sylvania Electric Prod Lighting device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315494A (en) * 1919-09-09 Walter a
US1484211A (en) * 1921-08-17 1924-02-19 Erikson Leonard Showcase reflector
US2291491A (en) * 1941-01-31 1942-07-28 Miller Co Combined wiring conduit and fluorescent lamp fixture
US2315884A (en) * 1942-09-25 1943-04-06 Van L Vendope Lighting equipment
US2391325A (en) * 1943-03-29 1945-12-18 Sylvania Electric Prod Lighting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597060A (en) * 1947-06-12 1952-05-20 Moe Brothers Mfg Company Channeled tube light fixture with housed yieldable socket means
USD244794S (en) * 1976-05-24 1977-06-21 Control Products Inc. Explosion proof fluorescent lamp for mines or the like
US6318613B1 (en) 2000-02-22 2001-11-20 Annette K. Underhill Carrying pouch attachable to garments

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