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Патент USA US2128470

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Aug. '30, 193.8.
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P_ D. pHlLLgpg
2,128,470
LIGHTING DEVICE
Filed Jan. 27, 1937
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INVENTOR
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BY W,%,@
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Patented Aug. 30, 1938
PArsNT
UNITED STATES
Fries
2,128,470
LIGHTING DEVICE
"
Paul D. Phillips, Elmhurst, Ill., assigner to Ben
jamin Electric Mfg. Company, Des Plaines, Ill.,
a corporation of Illinois
Application January 27, 1937, Serial No. 122,491
4 Claims. (Cl. 240-78)
I2 and means for mounting the latter on the
This invention relates to improvements in
lighting devices, and particularly to a device
adapted for application to a lighting ñxture de
signed tol afford general illumination over a space
of considerable area, for the purpose of inter
cepting a portion of the light output from the
fixture reflector and adjustably holding it in posi
tion between the lamp and the inner surface -
of the ñxture reflector. The mounting means
includes a bar I3 to which the reflector I2 is -5
lamp and concentrating it and redirecting it to
secured by suitable means such as the rivet I2ia,
this bar being pivotally connected at its upper
some desired point or upon some desired object
end to an upwardly extending arm` M of a gen
and thus increasing the intensity of the illumina
erally L-shaped bracket or supporting member
I5. This bracket I5 has another arm Iii which is 10
curved in an arc having the pivot Il, on which
the bar I3 swings, for its center.
Member I5 is preferably a casting of light
weight metal such as aluminum. In addition to
arms I4 and I6 the bracket has a downwardly 15'
10 tion on such point or object.
In an application filed by John H. Waterbury
October 12, 1935, Serial No. 44,689; the inventor
discloses several forms of a lighting construction
which includes, in addition to the main fixture
15 reflector and the lamp, an auxiliary reflector
located within the main reflector, and means for
extending portion I8 which, when the device is
supporting the auxiliary reñector, the supporting
in place on .a fixture reflector, extends slightly
below the rim of the latter. To this extension IB
is hinged, at I9, a clamping member 2d, which
also is a light-weight'casting. Clamping mem- 20
ber 20 extends up on the outer side of the fix
ture reflector and hooks over the rim bead II of
of the latter and is thus prevented from slipping
down and becoming separated from the reñector.
The clamping member also extends up into theV 25
means being so constructed and arranged that
the auxiliary reflector may be tilted to vary its
angular relation to the axis of the main reflector
and lamp, and also to permit the auxiliary re
flector to be moved to any position around this
axis without changing its angular relation thereto.
My invention relates to improvements in the
mounting of the beam projector reflector which
25
forms a part of each of the constructions shown
fixture reñector a short distance and carries a
in the prior application referred to, one of the
objects of the invention being to provide a de
thumb set-screw 2I which, when turned in, en
gages the downward extension I8 of the bracket
I5 and forces the bracket toward the inner sur
face of the fixture reflector. The reflector is thus 30
firmly clamped between the bracket and the
clamping member. A strip 22 of felt or other
suitable material is secured, by the use of cement
vice which is sturdy and not likely to get out of
30 adjustment. Another object is to improve the
appearance of the device.l Further objects and
advantages of the invention will be apparent
from the description,- and the claims.
In the accompanying drawing,
35
or other suitable means, to the part of the bracket
which is pressed toward the reflector, to prevent 35
injury to the enamel of the latter, and a strip 23
Figure 1 is an axial sectional view of a light
ing ñxture fitted with my improved beam projec
tor, and
Fig. 2 is a fragmentary sectional view, the sec
tion being taken on line 2-2 of Fig. l.
Referring to the drawing in detail, the main
40 lighting unit or fixture comprises a bowl-shaped
» reflector 5, a socket 6 for supporting the lamp 'I
with its light center 8 on the axis of the reflector
5, and a nut 9 threaded on the conduit for clamp
ing the flange of the reflector 5 in position with
4
respect to the socket 6. The upper portion I0 of
the reñector forms a hood to enclose the socket
5 and the upper part of the lamp. The lower
edge of the reflector is rolled to form a stiffening
bead I I for holding the rim of the reflector to
its annular form. This type of lighting fixture
is in general use and is designed to light a con
siderable area below it substantially uniformly.
i
The beam projector comprises a small, prefer
55 ably concave, auxiliary beam-projecting reflector
‘ of similar material is secured to the inner side
of the upwardly extending portion of clamping
»
member
2U. -
The lower end of pivoted auxiliary-reflector- 4e
supporting member I3 is bifurcated and strad
dles the curved arm it of the bracket I5. A
thumb set-screw 2li is threaded through one of
the legs of this clevis-like part of the pivoted sup
porting arm I3, and, when screwed in against [i5
arm I6, securely locks the swinging arml and the
beam-projecting
reflector
against
movement
about the pivot I'I.
It will be seen that the beam projector may
be positioned at any desired point around the 50
axis of the fixture reñector and lamp, and that
this position may be changed by merely loosening
thumb-screw 2l slightly and sliding the bracket
and clamp around on the reflector bead Il.
The beam-projecting reflector is preferably 55
2
2,128,470
projected can be adjusted in a plane parallel to
the axis of the lamp and fixture reflector, that
the hood and into the reflector, said annular re
flector having its lower annular edge lying sub
stantially in a plane perpendicular to the axis
of the lamp, and an auxiliary refiector mounted
so that the major portion of it lies between the
is, the beam can be swung in a vertical plane
inner surface of the annular reflector and the
concave and polished or etched on its inner side.
It will be seen that after thumb-screw 24 has
been loosened the direction in which the beam is
when the fixture is` installed so as to light a space
axisof the lamp` for directing a beam of light
below it, as is usually the case.
laterally toward the axis `of the lamp and under
Further modifications will be apparent to those
neath the lower annular edge of the annular re
skilled in the art and it is desired, therefore, that
the invention be limited only by the prior art and
the scope of the appended claims.
Having thus described my invention, what I
claim and desire toI secure by Letters Patent is:
flector, said auxiliary reflector being mounted for 10
swivel adjustment about the axis of the lamp
whereby the lateral light may be intensified in
the desired radial direction, and said auxiliary
l. A beam projector for use with a lighting
fixture having a bowl-shaped reflector and a
lamp, said beam projector comprising an auxiliary
reñector and means for adjustably mounting the
angl-e of inclination of the beam therefrom, said 15
mounting means comprising a bracket having
clamping means embracing the lower edge of said
annular reñector for securing it to said lower
same within the fixture reflector between the
annular edge in various adjusted positions about
20 latter and the lamp, said mounting means com
prising a bracket member, a clamping member
hinged to said bracket member and adapted to
clamp the fixture reflector between itself and
the bracket member with the bracket member
inside the fixture reñector, said bracket member
having an arm extending toward the axis of the
lamp and fixture reflector, a third member carry
reflector being adjustable to vary the vertical
the axis of the lamp, said bracket having an 20
arm extending upwardly from said annular edge
and inwardly toward the axis of the lamp, said
auxiliary reñector being pivotally mounted ad
jacent its upper edge and adjacent the upperend
ing the auxiliary reiiector and pivotally sup
of said arm to vary the Vertical angle of inclina 25
tion of the reflected beam.
4. A lighting construction comprising a hood,
an annular downwardly opening bowl-like re
ported by said arm so that it may be swung in
?lector secured to and depending from said hood,
30 a plane parallel to the axis of the fixture re
flector to vary the position of the auxiliary re
liector and consequently the direction of pro
jection of the beam, and means for locking said
third member to the bracket member to hold it
and the auxiliary reflector in adjusted position.
2. A beam projector for use with a lighting lix
ture having a bowl-shaped reflector and a lamp,
said beam projector comprising an auxiliary re
flector and means for adjustably mounting the
40 same within the fixture reflector between the
latter and the lamp, said mounting means com
prising a bracket member, a clamping member
hinged to said bracket member and adapted to
clamp the fixture reflector between itself and
the bracket member, said bracket member hav
ing an arm extending into- the fixture reflector
and toward the axis thereof, a third member
carrying the auxiliary reflector `and pivotally
supported by said arm so that it may be swung
to vary the position of the auxiliary reiiector rela
tive to the lamp and consequently the direction
of projection of the beam, the bracket member
having another arm, and means for locking said
third member to said other arm to hold said
third member and the auxiliary reflector in ad
justed position.
a lamp socket in said hood for supporting an
electric lamp so that it extends downwardly from
the hood andA into the reflector, said annular re
ñector having its lower annular edge lying sub
stantially in a plane perpendicular to the axis
of the lamp, and an auxiliary reñector mounted
so that the major portion of it lies between the
inner surface of the annular reiiector and the
axis of the lamp forI directing a beam of light
laterally toward the'axis of the lamp and under
neath the lower annular edge of the annular re
fiector, said auxiliary reflector being mounted for 40
swivel adjustment about the axis of the lamp
whereby the lateral light may be intensified in
the desired radial direction, and said auxiliary
reflector being adjustable to vary the vertical
angle of inclination of the beam therefrom, said
mounting means comprising a bracket having
clamping means embracing the lower edge of
said annular reflector for securing it to said lower
annular edge in various adjusted positions about 50
the axis of the lamp, said bracket having an arm
extending upwardly from said annular edge and
inwardly toward the axis of the lamp, said auxil
iary reñector being pivotally mounted adjacent
its upper'edge and adjacent the upper end of said
arm to vary the vertical angle of inclination of 5.5
3. A lighting construction comprising a> hood, i the reflected beam, and means for securing said
an annular downwardly opening bowl-like re
auxiliary reflector in various positions of adjust
flector secured to and depending from said hood, , ment about said pivotal mounting.
UU a lamp socket in said hood for supporting an
electric lamp so that it extends downwardly from
30.
PAUL D. PHILLIPS.
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