US1591561A - Lamp - Google Patents

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Publication number
US1591561A
US1591561A US642426A US64242623A US1591561A US 1591561 A US1591561 A US 1591561A US 642426 A US642426 A US 642426A US 64242623 A US64242623 A US 64242623A US 1591561 A US1591561 A US 1591561A
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United States
Prior art keywords
reflector
flange
casing
lamp
light source
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Expired - Lifetime
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US642426A
Inventor
Ralph E Race
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Individual
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Priority to US642426A priority Critical patent/US1591561A/en
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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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof

Definitions

  • This invention is directed to an improvement in lamps or lighting means involving the use of a light source and a reflector, and designed to provide means for controlling the direction and diffusion of the projected light rays.
  • the improved lamp includes a reflector mounted for tilting movement and to be fixed in. any desired tilted or angular position, and a light source which is permanently beyond the central or axial line of the reflector, and is in turn capable of ad-' justment at will to vary its angular relation to the axial line of the reflector.
  • Fig. 1 is a sectional view through the improved lamp.
  • Fig. 2 is a section on line 2-2 of Fig. 1.
  • Fig. 3 is a broken perspective view of a portion of the adjusting member.
  • the invention which is here shown as adapted for an automobile lamp, comprises a casing 1 of usual shape, having an edge flange 2.
  • A. carrier rim in the form of a cylindrical extension 3 has an annular flange 4, formed with a channel 5 to receive the usual cover-ring packing 6, this rim 3 having a'rearwardly extending flange 7 slotted at 8, to receive bolts 9, passing through the flange 2 of the casing, and secured by nuts 10.
  • the carrier rim or cylindrical extension is thus adjustable toward and from the casing, and may be held in any fixed relation thereto, as will be obvious.
  • a reflector 11 is arranged within the casing, being hingedly supported at the upper portion, through the medium of a hinge 13, secured in part to a bar 14 carried by the reflector and to one of the bolts 9.
  • the lower portion of the reflector diametrically opposite the hinge is provided with a finger projection 15, adapted to seat loosely in a slot 16 in the flange 7 of the carrier rim.
  • the light source comprises a bulb 17 and conductor 18, the base 17 of the bulb being adapted for removal connection in the usual socket 19, longitudinally adjustable in a sleeve 19, through the conventional means, including an arm 20, secured to the socket and projecting through a slot in the sleeve,
  • a spring 22 encircles the screw between the casing and arm, for insuring movement in the arm and socket as the screw in a direction to increase the distance of the bulb from the reflector.
  • the reflector is formed with an opening 23, through which the light source or its mounting projects.
  • This opening is of materially greater diameter than that of the mounting, to permit obvious independent movement of the light source.
  • This opening is arranged beyond, that is above or below the axial line of the reflector, that is the light source is out of the true focal plane of the reflector, and remains beyond the true focal plane of the reflector at all times.
  • the cover rim 24L havingthe usual glass, preferably plain to avoid light interference, is secured by the usual bayonet slot connection with pins 25, carried by the carrier rim flange 7.
  • the glass of the cover bears against the packing 6 to exclude dust.
  • the reflector tilted to desired position serves to throw the light rays downwardly and forwardly to avoid the glare in the faces of approaching motorists, while the permanent nonfocal arrangement of the light source tends to a diffusion of the light rays for more properly spreading the light projected.
  • the adjustment of the light source is without interference from the reflector, nor does the tilting of the latter affect the light source, owing to the enlarged opening 23.
  • the reflector may be tiltingly adjusted through movement of the carrier rim, as will be obvious, though it is to be understood in this connection, that if a permanent degree of reflector tilt has been determined on as satisfying conditions and legal requirements, then the adjustment described may be dispensed with, and the finger 15 permanently secured to the flange of the carrier rim, and the latter fixed securely to the casing rim, without any possible adjustment.
  • the feature of the invention considered of particular importance is the arrangement of the light source out of the focal, that is axial line of the reflector, and the tilted reflector cooperating with a light source so arranged.
  • a fixed downwardlydirected and properly diffused light is with a screw 21, mounted in the casing havbolts secured from the lamp, with objectionable glare entirely eliminated.
  • a casing having a cylindrical flange, a cylindrical extension fitting within said flange, means for adjustably connecting the flange and -extension a reflector within the casing and hingedly con nected to the flange, said reflector opposite such hinged connection having an extension projecting through anapertnrein the cylinfClIlCfll/GXliQIISlOIl, whereby when the cylindrical extension is moved relative to the flange of the casing the reflector ist ilted.
  • a casing having a forwardly-projecting edge: flange, securing mounted at diametrically-opposed oints therein, a cylindrical extension fitted 20 with said'flange and formed with slots to engage said bolts, a reflector hingedly connected to one of said bolts and having an extension to lit within an opening in the cylindrical extension adjacent the other bolt, whereby in the adjustment of the cylindrical extension on said bolts the reflector is tilted.
  • a :lamp' including a casing, a lens therefor, said casing having a flange, a cylindrical extension adjustably connected to said flange for movement axially of the easing, areflect-or hinged to the casing at one diametric te an mal and formed at the opposite terminal with a projection to seat in an aperture in the cylindrical extension, said extension being projected toward and into holding contact with the lens.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Y 1,591,561 R. ,E. RACE LAMP July 6 1926.
Filed May 51. 1925 Patented July 6, 1926.
RALPH E. RAGE, OF MANSFIELD, OHIO.
LAMP.
Application filed May 31, 1923. Serial No. 642,426.
This invention is directed to an improvement in lamps or lighting means involving the use of a light source and a reflector, and designed to provide means for controlling the direction and diffusion of the projected light rays.
The improved lamp includes a reflector mounted for tilting movement and to be fixed in. any desired tilted or angular position, and a light source which is permanently beyond the central or axial line of the reflector, and is in turn capable of ad-' justment at will to vary its angular relation to the axial line of the reflector.
The'invention is illustrated in the accompanying drawings, showing the preferred form of the invention, and in which:
Fig. 1 is a sectional view through the improved lamp.
Fig. 2 is a section on line 2-2 of Fig. 1.
Fig. 3 is a broken perspective view of a portion of the adjusting member.
The invention, which is here shown as adapted for an automobile lamp, comprises a casing 1 of usual shape, having an edge flange 2. A. carrier rim in the form of a cylindrical extension 3 has an annular flange 4, formed with a channel 5 to receive the usual cover-ring packing 6, this rim 3 having a'rearwardly extending flange 7 slotted at 8, to receive bolts 9, passing through the flange 2 of the casing, and secured by nuts 10. The carrier rim or cylindrical extension is thus adjustable toward and from the casing, and may be held in any fixed relation thereto, as will be obvious.
A reflector 11 is arranged within the casing, being hingedly supported at the upper portion, through the medium of a hinge 13, secured in part to a bar 14 carried by the reflector and to one of the bolts 9. The lower portion of the reflector diametrically opposite the hinge is provided with a finger projection 15, adapted to seat loosely in a slot 16 in the flange 7 of the carrier rim. Thus as the carrier rim is adjusted, the reflector may be given any degree of tilt or inclination desired, and fixed against movement in such position.
The light source comprises a bulb 17 and conductor 18, the base 17 of the bulb being adapted for removal connection in the usual socket 19, longitudinally adjustable in a sleeve 19, through the conventional means, including an arm 20, secured to the socket and projecting through a slot in the sleeve,
designed ing threaded engagement with such arm. A spring 22 encircles the screw between the casing and arm, for insuring movement in the arm and socket as the screw in a direction to increase the distance of the bulb from the reflector.
The reflector is formed with an opening 23, through which the light source or its mounting projects. This opening is of materially greater diameter than that of the mounting, to permit obvious independent movement of the light source. This opening is arranged beyond, that is above or below the axial line of the reflector, that is the light source is out of the true focal plane of the reflector, and remains beyond the true focal plane of the reflector at all times.
The cover rim 24L, havingthe usual glass, preferably plain to avoid light interference, is secured by the usual bayonet slot connection with pins 25, carried by the carrier rim flange 7. The glass of the cover bears against the packing 6 to exclude dust.
The reflector tilted to desired position serves to throw the light rays downwardly and forwardly to avoid the glare in the faces of approaching motorists, while the permanent nonfocal arrangement of the light source tends to a diffusion of the light rays for more properly spreading the light projected. The adjustment of the light source is without interference from the reflector, nor does the tilting of the latter affect the light source, owing to the enlarged opening 23.
The reflector may be tiltingly adjusted through movement of the carrier rim, as will be obvious, though it is to be understood in this connection, that if a permanent degree of reflector tilt has been determined on as satisfying conditions and legal requirements, then the adjustment described may be dispensed with, and the finger 15 permanently secured to the flange of the carrier rim, and the latter fixed securely to the casing rim, without any possible adjustment.
The feature of the invention considered of particular importance is the arrangement of the light source out of the focal, that is axial line of the reflector, and the tilted reflector cooperating with a light source so arranged. Thus a fixed downwardlydirected and properly diffused light is with a screw 21, mounted in the casing havbolts secured from the lamp, with objectionable glare entirely eliminated.
Having thus described the invention, what is claimed as new, is
1. In a lamp, a casing'having a cylindrical flange, a cylindrical extension fitting within said flange, means for adjustably connecting the flange and -extension a reflector within the casing and hingedly con nected to the flange, said reflector opposite such hinged connection having an extension projecting through anapertnrein the cylinfClIlCfll/GXliQIISlOIl, whereby when the cylindrical extension is moved relative to the flange of the casing the reflector ist ilted.
2. In a lamp, a casing having a forwardly-projecting edge: flange, securing mounted at diametrically-opposed oints therein, a cylindrical extension fitted 20 with said'flange and formed with slots to engage said bolts, a reflector hingedly connected to one of said bolts and having an extension to lit within an opening in the cylindrical extension adjacent the other bolt, whereby in the adjustment of the cylindrical extension on said bolts the reflector is tilted.
3. A :lamp' including a casing, a lens therefor, said casing having a flange, a cylindrical extension adjustably connected to said flange for movement axially of the easing, areflect-or hinged to the casing at one diametric te an mal and formed at the opposite terminal with a projection to seat in an aperture in the cylindrical extension, said extension being projected toward and into holding contact with the lens.
In testimony whereof I ailix my signature.
RALPH E. RACE.
US642426A 1923-05-31 1923-05-31 Lamp Expired - Lifetime US1591561A (en)

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US642426A US1591561A (en) 1923-05-31 1923-05-31 Lamp

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