US2433241A - Adjustable reflector - Google Patents

Adjustable reflector Download PDF

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Publication number
US2433241A
US2433241A US629098A US62909845A US2433241A US 2433241 A US2433241 A US 2433241A US 629098 A US629098 A US 629098A US 62909845 A US62909845 A US 62909845A US 2433241 A US2433241 A US 2433241A
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Prior art keywords
reflector
globe
lamp
adjustable
support
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Expired - Lifetime
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US629098A
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Schwarzmayr Ludwig
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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
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames

Definitions

  • My invention relates to improvements in adjustable reflectors in which the reflector is firmly secured to a spherical support when pushed toward its equator and released from its binding relation with the support when lifted upwardly away from the equator.
  • the principal object of the improvements is the construction of an adjustable reflector in which certain parts can be made of material having relatively low heat resistance.
  • Another object is the construction of an adjustable reflector of the releasable type in which the lamp is retained in a constant relation with the reflector during adjustment of the reflector to different positions on its spherical support.
  • Fig. 2 shows the spherical reflector support when removed.
  • Fig. 3 is a plan View of the reflector.
  • Fig. 4 is a view of the partition between the light zone of the reflector and the reflector supporting means, shown in section in Fig. 1.
  • Fig. 5 is a detailed sectional view of the reflector support.
  • the conduit I has a threaded end 2 received by the threaded upper portion of the bore of the sleeve 3.
  • the lower portion of the bore of the sleeve 3 receives the member 4 of the conventional connection to which are connected the terminals of the conductors 5, From the removable connection member ii extends the lamp cord I to the lamp socket 8, which carries the lamp 9.
  • the sleeve 3 is threaded outside thruout its entire length and is engaged by the threaded bore II] of the globe I I, which is hollow and has an opening I2 at its lower portion for movement of the lamp cord I when the reflector I3 is adjusted to different positions on the globe II.
  • the rigid member I4 From the reflector I3 extends the rigid member I4 which is dimensioned to be limited in downward movement to a position spaced from the equator I5 of the globe II.
  • the flexible member I6 is held in position by the flange I1 extending from the rigid member I4 but is not contacting the globe II.
  • the flexible member I6 When the flexible member I6 is pushed downward to an extent limited by the member I4 it holds the reflector I3 in position, and when it is pushed away from the equator I5 its is loosely slidable on the globe.
  • the disk I8 To the inside of the reflector I3 is secured the disk I8 by the screws I9, I9, and is provided with a lamp support 29, Between the disk I8 and the globe II and flexible member I6 is formed an air chamber 2
  • a hollow globe having an opening in its lower portion for movement of a lamp cord, a reflector adjustably mounted on said globe, a support secured to the inside of said reflector and a lamp supported thereby, and a lamp cord extending from the interior of said globe thru its opening to said lamp.
  • reflector supporting means comprising a globe and globe engaging means adjustably mounted thereon, a reflector carried by said globe engaging means, a disk secured to the inside-of said reflector and forming a partition between the lamp zone of the reflector and said reflector supporting means, and a lamp suspended from said disk.

Description

Dec. 23, 1947. SCHWARZMAYR ADJUSTABLE REFLECTOR Filed Nov. 16, 1945' INVENTQKI Patented Dec. 23, 1947 UNlTED STATES PATENT ornce ADJUSTABLE REFLECTOR Ludwig Schwarzmayr, San Francisco, Calif. Application November 16, 1945, Serial No. 629,098
2 Claims.
My invention relates to improvements in adjustable reflectors in which the reflector is firmly secured to a spherical support when pushed toward its equator and released from its binding relation with the support when lifted upwardly away from the equator.
The principal object of the improvements is the construction of an adjustable reflector in which certain parts can be made of material having relatively low heat resistance.
Another object is the construction of an adjustable reflector of the releasable type in which the lamp is retained in a constant relation with the reflector during adjustment of the reflector to different positions on its spherical support.
I attain these objects by the construction 11- lustrated in the accompanying drawings, in which- Figure 1 is a vertical section of the reflector and its support.
Fig. 2 shows the spherical reflector support when removed.
Fig. 3 is a plan View of the reflector.
Fig. 4 is a view of the partition between the light zone of the reflector and the reflector supporting means, shown in section in Fig. 1.
Fig. 5 is a detailed sectional view of the reflector support.
Similar numerals refer to similar parts thruout the several views.
The conduit I has a threaded end 2 received by the threaded upper portion of the bore of the sleeve 3. The lower portion of the bore of the sleeve 3 receives the member 4 of the conventional connection to which are connected the terminals of the conductors 5, From the removable connection member ii extends the lamp cord I to the lamp socket 8, which carries the lamp 9. The sleeve 3 is threaded outside thruout its entire length and is engaged by the threaded bore II] of the globe I I, which is hollow and has an opening I2 at its lower portion for movement of the lamp cord I when the reflector I3 is adjusted to different positions on the globe II. From the reflector I3 extends the rigid member I4 which is dimensioned to be limited in downward movement to a position spaced from the equator I5 of the globe II. The flexible member I6 is held in position by the flange I1 extending from the rigid member I4 but is not contacting the globe II. When the flexible member I6 is pushed downward to an extent limited by the member I4 it holds the reflector I3 in position, and when it is pushed away from the equator I5 its is loosely slidable on the globe.
To the inside of the reflector I3 is secured the disk I8 by the screws I9, I9, and is provided with a lamp support 29, Between the disk I8 and the globe II and flexible member I6 is formed an air chamber 2|. To the upper side of the disk I8 is secured the insulation 22. The partition formed by the disk I8 prevents the heat in the lamp zone 23 injuring the flexible member I6 and the globe II when they are constructed. of material having relatively low heat resistance. Air passages 24, 24 in the member I4 of the reflector provide for the escape of heated air and entrance of cool air,
I claim:
1. In an adjustable reflector, a hollow globe having an opening in its lower portion for movement of a lamp cord, a reflector adjustably mounted on said globe, a support secured to the inside of said reflector and a lamp supported thereby, and a lamp cord extending from the interior of said globe thru its opening to said lamp.
2. In an adjustable reflector, reflector supporting means comprising a globe and globe engaging means adjustably mounted thereon, a reflector carried by said globe engaging means, a disk secured to the inside-of said reflector and forming a partition between the lamp zone of the reflector and said reflector supporting means, and a lamp suspended from said disk.
LUDWIG SCHWARZMAYR.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 988,824 Sagendorph Apr. 4, 1911 2,173,566 Saaf Sept, 19, 1939 1,336,835 Gould et a1. Apr. 13, 1920 2,382,179 Schwarzmayr Aug. 14, 1945
US629098A 1945-11-16 1945-11-16 Adjustable reflector Expired - Lifetime US2433241A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630521A (en) * 1949-09-22 1953-03-03 Kirlin Company Enclosed lamp receptacle with outlet box attached
US2979604A (en) * 1958-03-28 1961-04-11 Globe Lighting Products Inc Electric light fixture
US3275821A (en) * 1964-07-31 1966-09-27 Walter J Lebb Shades
US4617612A (en) * 1985-01-22 1986-10-14 Pritchett John C High efficiency task lighting fixture
US20050005529A1 (en) * 2003-07-10 2005-01-13 David Brault Lighting system for a greenhouse
EP2960571A1 (en) * 2014-06-26 2015-12-30 David Einsiedler Light with pivotable light screen
EP2995853A1 (en) * 2014-09-11 2016-03-16 Ronald A/S Pendant light

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US988824A (en) * 1910-12-31 1911-04-04 Lloyd A Sagendorph Reflector.
US1336835A (en) * 1918-10-30 1920-04-13 Gould Frederick John Shade-support for gas-burners and electric lights
US2173566A (en) * 1936-08-06 1939-09-19 Goodrich Electric Company Lighting fixture
US2382179A (en) * 1944-07-14 1945-08-14 Schwarzmayr Ludwig Reflector support

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US988824A (en) * 1910-12-31 1911-04-04 Lloyd A Sagendorph Reflector.
US1336835A (en) * 1918-10-30 1920-04-13 Gould Frederick John Shade-support for gas-burners and electric lights
US2173566A (en) * 1936-08-06 1939-09-19 Goodrich Electric Company Lighting fixture
US2382179A (en) * 1944-07-14 1945-08-14 Schwarzmayr Ludwig Reflector support

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630521A (en) * 1949-09-22 1953-03-03 Kirlin Company Enclosed lamp receptacle with outlet box attached
US2979604A (en) * 1958-03-28 1961-04-11 Globe Lighting Products Inc Electric light fixture
US3275821A (en) * 1964-07-31 1966-09-27 Walter J Lebb Shades
US4617612A (en) * 1985-01-22 1986-10-14 Pritchett John C High efficiency task lighting fixture
US20050005529A1 (en) * 2003-07-10 2005-01-13 David Brault Lighting system for a greenhouse
US20070163170A1 (en) * 2003-07-10 2007-07-19 David Brault Lighting system for a greenhouse
EP2960571A1 (en) * 2014-06-26 2015-12-30 David Einsiedler Light with pivotable light screen
EP2995853A1 (en) * 2014-09-11 2016-03-16 Ronald A/S Pendant light

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