US2963255A - Adjustable light fixture - Google Patents

Adjustable light fixture Download PDF

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Publication number
US2963255A
US2963255A US712798A US71279858A US2963255A US 2963255 A US2963255 A US 2963255A US 712798 A US712798 A US 712798A US 71279858 A US71279858 A US 71279858A US 2963255 A US2963255 A US 2963255A
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United States
Prior art keywords
fixture
light
light fixture
adjustable light
angle bracket
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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
US712798A
Inventor
Bobrick Mitchell
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.)
MARVIN ELECTRIC Manufacturing Co
Original Assignee
MARVIN ELECTRIC Manufacturing Co
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Publication date
Application filed by MARVIN ELECTRIC Manufacturing Co filed Critical MARVIN ELECTRIC Manufacturing Co
Priority to US712798A priority Critical patent/US2963255A/en
Application granted granted Critical
Publication of US2963255A publication Critical patent/US2963255A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters

Definitions

  • My invention comprises an adjustable light fixture and more specifically a recessed light fixture which is adaptable to receive the large electric light bulbs which have their ends silvered or frosted.
  • Such light bulbs vary in length even when they are of the same power because of manufacturing tolerances. It is desirable that these light bulbs extend through the fixture and the basal only to the limits of the silvered area of the light bulbs. Because of the variation in length of these bulbs, this has constituted a prime nuisance in the installation of such fixtures.
  • my invention comprises a fixture which has a mounting for the bulb slidably adjusted in a vertical plane so that it may be used for any length of light bulb. After the light bulb is screwed into my fixture, it can be pushed further into the fixture or pulled out so that the silvered area of the bulb lines up with the basal and none of the clear glass of the bulb shows outside of the basal. If any of the silvered area is inside of the fixture this causes a decrease in light given ofi by the fixture and is, therefore, undesirable.
  • Figure l is a vertical section through my light fixture.
  • Figure 2 is a vertical section of a detail.
  • Figure 3 is a section end View.
  • Figure 4 is a section taken on the line 4-4 of Figure 2.
  • Figure 5 is a section taken on the line 55 of Figure 4.
  • Figure 6 is a section taken on the line 66 of Figure 4.
  • Figure 7 is a top plan view of a detail.
  • a light fixture constructed in accordance with my invention is adapted to be mounted in a ceiling 1 and has an outer housing 2 and a basal 3.
  • the housing 2 has welded or otherwise attached thereto an angle bracket 4.
  • the angle bracket 4 has a slot 5.
  • a second angle bracket 6 has one surface 7 adapted to receive a light bulb socket 8, and the other surface 9 has thereon a U shaped strap 10 which is adapted to slide in the slot 5.
  • a spring clip 11 is placed through the strap 10 and its outer ends 12 engage the opposite side 13 of the bracket 4.
  • the strap 10 and clip 11 support the angle bracket 6 slidably vertically on the angle bracket 4.
  • An ordinary porcelain light bulb socket 8 is carried in the hole 14 so as to extend downwardly from the angle bracket 6.
  • a recessed fixture constructed as above provides a platform (the angle bracket 6) for the socket 8 and when a light bulb 20 having a silvered surface 21 and a line of demarcation 22 between the silvered surface 21 and the clear glass 23 is placed in a socket 8 by merely pushing upwardly or pulling downwardly upon the light bulb 20, the line of demarcation 22 can be adjusted as shown in Figure 1 to exactly coincide with the outer edge of the basal 3 thus securing a perfect matching of these lines.
  • This fixture gives oil all of its light through the silvered surface 21 and no glare is received in the room below from the unsilvered surface 23.
  • a recessed light fixture comprising a housing, a hanger supported by said housing, a light socket supporting platform, a vertical slot in said hanger, a strap on said platform slidable in said slot, and spring means to retain said strap in said slot.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Dec. 6, 1960 M. BOBRICK 2,963,255
ADJUSTABLE LIGHT FIXTURE Filed Feb. 3, 1958 2 Sheets-Sheet l INVENTOR. M/7'C/ /EZ L fiQ e/Ck QTTaP/VEVS Dec. 6, 1960 M. BOBRICK 2,963,255
ADJUSTABLE LIGHT FIXTURE Filed Feb. 3, 1958 2 Sheets-Sheet 2 INVENTOR.
BY fi e.
WTOQ/VEVS MTGJELL Baa/Woe United States Patent ADJUSTABLE LIGHT FIXTURE Mitchell Bobrick, Pacific Palisades, Califl, assignor to Marvin Electric Manufacturing Co., Los Angeles, Calif., a corporation of California Filed Feb. 3, 1958, Ser. No. 712,798
1 Claim. (Cl. 248327) My invention comprises an adjustable light fixture and more specifically a recessed light fixture which is adaptable to receive the large electric light bulbs which have their ends silvered or frosted. Such light bulbs vary in length even when they are of the same power because of manufacturing tolerances. It is desirable that these light bulbs extend through the fixture and the basal only to the limits of the silvered area of the light bulbs. Because of the variation in length of these bulbs, this has constituted a prime nuisance in the installation of such fixtures.
In general my invention comprises a fixture which has a mounting for the bulb slidably adjusted in a vertical plane so that it may be used for any length of light bulb. After the light bulb is screwed into my fixture, it can be pushed further into the fixture or pulled out so that the silvered area of the bulb lines up with the basal and none of the clear glass of the bulb shows outside of the basal. If any of the silvered area is inside of the fixture this causes a decrease in light given ofi by the fixture and is, therefore, undesirable.
Other objects and advantages of my invention will be apparent from the following description of the preferred embodiments thereof.
Figure l is a vertical section through my light fixture.
Figure 2 is a vertical section of a detail.
Figure 3 is a section end View.
Figure 4 is a section taken on the line 4-4 of Figure 2.
Figure 5 is a section taken on the line 55 of Figure 4.
Figure 6 is a section taken on the line 66 of Figure 4.
Figure 7 is a top plan view of a detail.
A light fixture constructed in accordance with my invention is adapted to be mounted in a ceiling 1 and has an outer housing 2 and a basal 3. The housing 2 has welded or otherwise attached thereto an angle bracket 4. The angle bracket 4 has a slot 5. A second angle bracket 6 has one surface 7 adapted to receive a light bulb socket 8, and the other surface 9 has thereon a U shaped strap 10 which is adapted to slide in the slot 5. A spring clip 11 is placed through the strap 10 and its outer ends 12 engage the opposite side 13 of the bracket 4. The strap 10 and clip 11 support the angle bracket 6 slidably vertically on the angle bracket 4. An ordinary porcelain light bulb socket 8 is carried in the hole 14 so as to extend downwardly from the angle bracket 6. It is held in place by a U-shaped strap 15 which has dogs 16 extending under the angle bracket 6 and is held in position by the set screw 17. A recessed fixture constructed as above provides a platform (the angle bracket 6) for the socket 8 and when a light bulb 20 having a silvered surface 21 and a line of demarcation 22 between the silvered surface 21 and the clear glass 23 is placed in a socket 8 by merely pushing upwardly or pulling downwardly upon the light bulb 20, the line of demarcation 22 can be adjusted as shown in Figure 1 to exactly coincide with the outer edge of the basal 3 thus securing a perfect matching of these lines. This fixture gives oil all of its light through the silvered surface 21 and no glare is received in the room below from the unsilvered surface 23.
I claim:
A recessed light fixture comprising a housing, a hanger supported by said housing, a light socket supporting platform, a vertical slot in said hanger, a strap on said platform slidable in said slot, and spring means to retain said strap in said slot.
References Cited in the file of this patent UNITED STATES PATENTS 442,192 Lewis Dec. 9, 1890 1,139,823 Thomas May 18, 1915 1,575,245 Wurdack Mar. 2, 1926 1,690,941 Nickerson Nov. 6, 1928 1,709,804 Paiste Apr. 16, 1929 1,825,920 Popp Oct. 6, 1931 1,880,952 Fabrey Oct. 4, 1932 2,773,976 Glatthar et al Dec. 11, 1956
US712798A 1958-02-03 1958-02-03 Adjustable light fixture Expired - Lifetime US2963255A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241386A (en) * 1979-04-24 1980-12-23 Westinghouse Electric Corp. Fluorescent lamp adapter for residential incandescent-type lamp fixture
US4638970A (en) * 1985-08-12 1987-01-27 Swivelier High hat light fixture support bracket
US4881157A (en) * 1989-04-27 1989-11-14 Usi Lighting, Inc. Adjustable light fixture
DE4344376A1 (en) * 1993-12-24 1995-06-29 Zumtobel Licht Socket bracket for a recessed ceiling light
US6435595B1 (en) 2001-06-01 2002-08-20 Lynn Chenowth Retractable tarpaulin cover apparatus for open-topped container
US7793948B2 (en) 2005-09-19 2010-09-14 Target Brands, Inc. Method of assembling a shopping cart
US10753586B1 (en) * 2019-11-02 2020-08-25 Shenzhen Snc Opto Electronic Co., Ltd. LED light and smart driving system of LED light
US20220214031A1 (en) * 2018-07-20 2022-07-07 Current Lighting Solutions, Llc Support assembly and illumination system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US442192A (en) * 1890-12-09 Height-measuring device
US1139823A (en) * 1913-04-24 1915-05-18 Arthur P Thomas Band-saw machine.
US1575245A (en) * 1924-04-28 1926-03-02 Wm Wurdack Electric Mfg Co Lamp-bulb support
US1690941A (en) * 1927-10-10 1928-11-06 Weber Electric Company Lamp-socket-securing means for electric fixtures
US1709804A (en) * 1926-05-08 1929-04-16 H T Paiste Company Electric fixture
US1825920A (en) * 1929-03-18 1931-10-06 Mc Gill Mfg Co Fixture mounting hickey
US1880952A (en) * 1928-05-14 1932-10-04 Weber Electric Company Lamp socket and adjustable support therefor
US2773976A (en) * 1953-03-16 1956-12-11 Art Metal Company Lighting fixture

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US442192A (en) * 1890-12-09 Height-measuring device
US1139823A (en) * 1913-04-24 1915-05-18 Arthur P Thomas Band-saw machine.
US1575245A (en) * 1924-04-28 1926-03-02 Wm Wurdack Electric Mfg Co Lamp-bulb support
US1709804A (en) * 1926-05-08 1929-04-16 H T Paiste Company Electric fixture
US1690941A (en) * 1927-10-10 1928-11-06 Weber Electric Company Lamp-socket-securing means for electric fixtures
US1880952A (en) * 1928-05-14 1932-10-04 Weber Electric Company Lamp socket and adjustable support therefor
US1825920A (en) * 1929-03-18 1931-10-06 Mc Gill Mfg Co Fixture mounting hickey
US2773976A (en) * 1953-03-16 1956-12-11 Art Metal Company Lighting fixture

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241386A (en) * 1979-04-24 1980-12-23 Westinghouse Electric Corp. Fluorescent lamp adapter for residential incandescent-type lamp fixture
US4638970A (en) * 1985-08-12 1987-01-27 Swivelier High hat light fixture support bracket
US4881157A (en) * 1989-04-27 1989-11-14 Usi Lighting, Inc. Adjustable light fixture
DE4344376A1 (en) * 1993-12-24 1995-06-29 Zumtobel Licht Socket bracket for a recessed ceiling light
US6435595B1 (en) 2001-06-01 2002-08-20 Lynn Chenowth Retractable tarpaulin cover apparatus for open-topped container
US7793948B2 (en) 2005-09-19 2010-09-14 Target Brands, Inc. Method of assembling a shopping cart
US20100327545A1 (en) * 2005-09-19 2010-12-30 Target Brands, Inc. Method of assembling a shopping cart
US7959166B2 (en) 2005-09-19 2011-06-14 Target Brands, Inc. Shopping cart with a base and a basket
US20220214031A1 (en) * 2018-07-20 2022-07-07 Current Lighting Solutions, Llc Support assembly and illumination system
US11846410B2 (en) * 2018-07-20 2023-12-19 HLI Solutions, Inc. Support assembly and illumination system
US10753586B1 (en) * 2019-11-02 2020-08-25 Shenzhen Snc Opto Electronic Co., Ltd. LED light and smart driving system of LED light

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