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Патент USA US2130803

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Sept. 20, 1938.
2,130,803
A. LAZERSON
LIGHTING FIXTURE
Filed Ju'ly 24, i936
3 Sheets-Sheet_ 1
16710720272 Zazgvzson,
E .
495
Sept. 20," 1938.
A. LAZERSON "
2,130,803
LIGHTING FIXTURE
Filed July 24, 1936
E952
55
37‘ 34
' s Sheets-Sheet 2 ‘
Sept’ 20, 1938- v
i
A. LAZERSON
-
‘
.
2,130,803
LIGHTING FIXTURE
Filed July 24, .1956
s sheets-sheets
Zazersoré:
PatentedS‘eptQZO, 193s
masses
STATES
PATENT OFFICE
2,130,303
LIGHTING FIXTURE‘
. Abraham Lazerson, Chicago,‘ Ill.
Application Julyv 24, 1936, Serial No. 92,328
.
‘
7Claims.
(01. 240-78)
able material. The re?ector plate ID has a cen
tral opening therein and a plurality of brackets
yiMy invention relates to alighting
lighting?xture
?xture of
.' has 'particularireference to' a
H,‘ II extending radiallyfrom said centralyopen
' ' '
'
Oneofv the objects of‘ the invention is the pro: ing, which brackets are upturned at their outer
vision of 'a‘?xture having means whereby the light ends and have a metal ring I2 secured thereto. A of
?ange l3 extends around the ring l2 at its lower
bulb ‘can be‘pro-pierly adjustedin a vertical direc
edge and projects inwardly a short distance, the
'' tionlv‘with respect to‘ the re?ecting surfaces, there
' bysecuring af'maximum amount of efficiency from ,ring 12 being spaced'apart from the outer pe
‘ the indirect variety.
riphery of; the plate I0 to allow light rays to pass
therearound, as shown particularly in Figure 2
1’Another andfurther object of my invention
- wthefprovision of a'lightirig ?xture in which provi
and as will be more fully described hereinafter.
: Mounted against the under side of the plate i9
' sionlistmade for the easy removal, for. cleaning
is a glass ring [4; the inner edge of which is in
substantial register with the edge of the plate ill
ing'or‘placing new light bulbs in the ?xture when 7 around the opening in the center thereof, this
{purposes and the like, of ‘the re?ector used'in con
‘ne'ction‘with the lighting ?xture and for relamp
it"ib'ecomes‘ necessary to’ "replace the light bulb glass preferably’ being translucent and adapted
to‘ receive rays of light along its inner edge which
f'dueto; breakage, burning out; or the like.
Another and further object of my invention is ‘ are distributed throughout its surface and direct»
,_ the‘provision of a light ?xture in which the dark ' ed downward, thereby providing light on the un
‘
, 216.
'
or "shadow spot immediately under the ?xture is
eliminated‘ and an even’ distribution of light rays
derside of the ?xture, and is known in the trade
generallyras an edge glow glass. The glass mem
is made throughout the (room.
ber is held in position by means of a ring [5
which has an annular portion 16 which engages
the under side of the glass ring M for a short dis
tance adjacent its inner edge, a vertical wall H,
variety-and in which thelight rays are so'distrib
. utedlv that ~\shadows from the light ?xture are a channel portion I8 extending parallel with the
' eliminated ‘and an even distribution of light rays annular portion l 6 but in stepped vertical relation
therewith, and with‘a downwardly extending an
is secured‘in' and about the lighting ?xture. _‘ ‘
‘23*
»
>
'
Another and further object of ‘my invention is
the] provision of alight ?xture of an indirect
30'.
,
.
..
.
.
:‘The's'e and‘ other’ objects‘ of my inventionywill be
more ifullya'nd better understood by reference to
the accompanying sheets ‘of drawings; and in
2
Which-
.
" Figure li's a perspective view of my, improved
" ~, ;~'Figure'2_isaview
partially in elevation and par
itially in section‘ of the‘ ?xture on line 2_2 of
.
.
Figureg3 is a plan sectional view on line 3—3 of
.
ner edge of the ring I5. Straps 20, 20 are provid 30
ed which are secured to the plate I9 by means of
rivets 2|, 2| and which extend inwardly over
the'channel l8 of‘the ring I5, the ring 15 being
secured to the straps 20, 20 by means of bolts 2 la,
1 ‘light ?xture; .
Eig'ure‘ 3;
‘ nular ?ange portion I 9 extending around the in
7 2 la, with spacers 22, 22 being ?tted over the bolts 35
2la.’, 2la between'the plate I5 and the straps 29,
20, the bolts 2m, 2la being threaded into the
straps 20, 20. The vertical wall portion I1 is
‘approximately one-half as high as the glass 'ring '
.I' Figure 2; V‘
4 is a detail sectional’ View showing the ' I4 is thick, so that at least one half the edge of
socket'and stem connection for the light ?xture; the glass ring I5 is exposed to receive rays of light
Figure 5 is a top view of the central re?ector; from the light bulb. The channel portion I8 has
s is atop viewof the ring to which the struckup sections 23, 23 adjacent which are slots
24, 24 for the reception of the fastening means
re?ector shown in ‘Figure 5 is attached;
Figure 7*is a detail sectional View showing the for a reflectorhereinafter described.
45
A re?ector 25 of bowl-like form is provided
‘ Hedge contoursof the ‘r'ingand central re?ector
having a. channel portion 26 extending there
I "I sh'owni'in" Figures 5 and v6; and
?-fFiguretfis a detail vertical sectional View’ on around, the re?ector preferably being made of
45111
.
.
_
,
..
metal with a’highly polished surface; A ?ange 21
is providedgon the re?ector 25,- this ?ange being
fin-which like reference characters 'referto like? approximately the same height as the annular
inea-"saorrigures.
‘
-
;
' Referring now speci?callyto the drawings, and
parts ‘throughout. ajcentral ?at circular re?ector ‘ channel portion [8 on the ring l5, with a down
plateIIll-Yis shown," this plate being preferably rwardly extending wall portion 28 being provided,
7 1 made of'rnet'al‘having a highly polished re?ect;
and a ?ange29 of the channel portion 26 being
5.5? ing "surface; or is made of glass or any other suit- ~ provided, this ?ange 29 and the wall 28 forming
50'
2
2,130,808
the sides of the channel section 26, and which is
inter?tted into the channel section I8 of the
ring !5. Spring clips 3|], 30 are provided which
socket, being in threaded engagement therewith
7 are secured to the portion 26 by means of rivets
in the usual manner, and replaced with a new
lamp. When this replacement is made, the lamps,
3|, 3| or other appropriate fastening means, and
have tongues 32, 32 projecting therefrom which
are received into the slots 24, 24 and ?t under the
struckup portions 23, 23 in the channel section
IS, the clips having upturned ends to be received
into the slots 24 and are slightly curved so that
as the re?ector 25 is placed in position the clips
are placed under tension to hold them securely in
position and also render them tight and imper
vious to dust, dirt and the like.
15
The re?ector 25 is placed in position by being
?tted against the channel iii of the ring member
i5, and the re?ector turned in a counterclock
wise direction until the clips are received in the
slots 24. A further slight turn tightens the re
20 ?ector into position under the lamp, in assem
bled relation. When it is desired to remove the
re?ector for relamping the ?xture, the re?ector
is twisted in a clockwise direction, thereby re
leasing the clips 30 and allowing the ready re
25 moval of the re?ector so that access may ‘be had
to the lamp.
30
.
A suspension means for securing the light to a
ceiling includes a hollow stem 33, to the upper
end of which a canopy 34 is provided, with the
usual swivel joint 35 and the nipple 36. Suitable
lead wires 31 and 38 are provided which pass
through the nipple 36 and stem 33 downward to
a socket 39 which has the lamp 40 mounted
therein in the usual manner. At the lower end
35 of the stem 33 a suspension member is provided
having a socket portion 4| and a ?ange portion
42, with screws 43 being provided which extend
through the socket portion 4! by means of which
the suspension member is secured to the sternv 33.
The ?ange 42 has a plurality of holes 44, 44
therein through which threaded studs 45, 45 ex
tend, these studs having nuts 46, 46 thereon. The
studs are threaded into the upper edge of the
socket 39 and locked in place by means of lock
45 nuts 41, 41, with the nuts 46 being loosely posi
tioned upon the studs 45 and through whichra
vertical adjustment of the socket 39 is made.
The socket 39 with the lamp therein is suspended
by means of the studs 45 and nuts 46.
50
turning it in a counterclockwise direction, when
the lamp 40 can be easily removed from the
_
A husk 48 is provided, to the lower end of
which-a plurality of braces 49, 49 are secured in
any approved manner. The ends of these braces
are turned at right angles to the body thereof
and are secured to the inner edge of the plate It]
by the rivets 2!, 2! which pass through the plate
l0 and the straps 2U, 20, thus securing this por
tion of the ?xture together in permanently ?xed
relation. The upper edge of the husk 48 has an
inwardly turned ?anged portion 50 which en
60 gages over the ?ange portion 42 of the suspension
member, and which in turn supports the entire
lower portion of the lighting ?xture. A slidingly
mounted cap 5! is provided which is ?tted over
the upper end of the husk 48 and is supported by
65 an annular ?ange 52 extending around the upper
end of the husk 48. When it is desired to adjust
the socket 39 and lamp 40 in the proper‘ posi
tion, the cap 51 is lifted, the nuts 46 turned on
the studs 45, and the socket, including the lamp,
70, may be raised and lowered asrdesired.
which even with one manufacturer vary in length
with relation to the neck portion thereof, may be
placed in proper adjusted position with respect
to the re?ector as heretofore described, by mov
ing the cap 5! upward along the stem and adjust 10
ing the height of the socket by means of the nuts
46 on the studs 45 to secure the best position of
the lighting bulb to obtain maximum results.
The lamp 40 must be fairly low in the re?ector in
order to obtain the maximum lighting effects from 15
it and yet not too close to secure the proper re
?ection and transmission of light rays from the
re?ector.
'
When the device'is in assembled position, the
light rays pass upward and outward from the 20
lamp 43, some of the rays striking against-the
metal ring l2 at the outer edge of the plate ‘In
and re?ecting downward around the edgeof the
plate i0 underneath the ?xture. Other rays
striking against the ring l2 pass to the under
side of the plate l0, while others are re?ected
upward by means of the'?ange l 3directly against
the under side of the plate It]. "Rays passing
through the'edge of the glass ring 14 are dis
tributed in and about the under side of the re
?ector 25 thereby lighting the entire spaceunder
30
neath the ?xture in such manner that a shadow
which might be produced in the room-by reason
of the re?ector plate If] is entirely‘ eliminated.
The rays of light are distributed so thoroughly 35
in a plurality of directions that not-only- arethey
evenly distributed throughout ‘the room for pur
poses of illumination, but the ?xtureitself is so
completely lighted that all dark spots in and
adjacent the ?xture are eliminated.
In addi
40
tion, the device possesses the factors of adjust
ment as far as the lampis concerned, as here
tofore described.‘
'
While I have described more or less precisely
the details of construction, I do not wish to be
understood as limiting myself thereto, as .1 con
45
template changes in form and the proportionof
parts and the substitution of equivalents as cir
cumstances may suggest or render expedient
without departing from the spirit or scopevof. my 50
invention.
I claim:
1. A lighting ?xture comprising, in combina
tion, a re?ector plate having a central opening
therein, a re?ector ring around the -outeredge 55
of said plate having an inwardly turned ?ange
around the lower edge thereof, the re?ector ring
being spaced from the outer edge of said plate,
brackets connecting the plate and re?ector ring,
the plane of the plate being between- the upper 60
and lower edges of the re?ector ring, a removable
re?ector secured to' said plate and closing the
central opening therein, means whereby the said
plate is suspended, a lamp socket carried by-said
suspension means, and a lampin-saidsocketan
extending into said central opening,
3
2. A lighting ?xture comprising, in combina~
tion, a plate having a central opening thereimja
re?ector ring around the outer periphery of the
said plate and spaced therefrom, suspension 70
In operation it will be understood that the
device is’ suspended from a ceiling in any suitable
manner, and is placed in position in assembled
means secured to the "said plate, agtranslucent
ring on the said plate’ encircling. the said ‘open
ing therein, means whereby the said ringds're'»~
relation. ' When it is desired to renew the lamp it
tained against the said plateya lzxowl-sh-aped-re,-v
?ector secured to said‘plategand a lamp mount- 75;
75 is only necessary to remove the re?ector 25 by
2,130,803
3
ed "in. said suspension means and extending into
said central opening and said re?ector.
,3. Azlighting ?xture comprising, in combina
>
said metallic ring, a socket, and a lamp in said
socket extending into said re?ector.
6. A lighting ?xture comprising, in combina
tion," a plate having a central opening therein, ‘ tion, a stem, a plate having a central opening
'a re?ector ring around the outer periphery of the therein supported by said stem, a re?ector ring
said plate and spaced therefrom, suspension extending around the outer periphery of said
[means ‘secured to the said plate, a translucent plate and spaced therefrom, a translucent ring
surrounding the opening in said plate placed in
ring on the said’ plate encircling the said open
ing" therein, a metallic ring one edgegof which face to face relation with said plate, a metallic
10 overlaps the said translucent ring, a bowl-shaped
ring supporting said translucent ring having a 10
channel section extending inwardly from the
' I re?ector secured to said metallic ring, and a lamp
I mounted in said suspension means and extending , edge of said translucent member, a bowl-shaped
re?ector having a channel section therearound
' intosaid'central openingand said re?ector.
4; Allig'hting'v ?xturecomp'rising, in combina
a reflector ring, around the outer periphery of the
?tted into the opening in the plate, a lamp socket,
a lamp extending into the bowl re?ector and
opening in the plate, and interengaging fasten
said plate and spaced therefrom, suspension
ing means on the channel sections of the re
means secured to the said plate, a translucent
?ector and the metallic ring.
tion, a plate having. a central opening therein,
ring onthe said plate encircling the said open
ing therein, the inner ‘edges of the opening in
‘said plate’ and the ring being in register with
- veach other, a metallic ring onesedge of which
overlaps the saiditranslucent ring, a bowl-shaped
' '7. A lighting ?xture comprising, in combina
tion, a stem, a plate having a central opening
therein supported by said stem, a re?ector ring
extending around the outer periphery of said
plate and spaced therefrom, a translucent ring
re?ector secured to-said metallic ring, and a lampv
surrounding the opening in said plate placed in
mounted in said suspension means and extend
face to face relation with said plate, a metallic
v"ing into said central opening and said re?ector.
53A lighting-?xture comprising, in combina
ring supporting said translucent ring having a
channel section extending inwardly from the
edge of said translucent member, openings in
said channel section, a bowl-shaped re?ector
‘tion, va stem, a plate having a central opening
therein supported by said stem, a re?ector ring
supported by said plate and spaced therefrom
' extendingaround the outer edge thereof, a trans
lucent ring surrounding the opening in said plate,
having a channel section therearound ?tted into ‘
I the opening in the plate, clips on the channel
section of said re?ector having tongues thereon
-a metallic ring having ,a channel section over
adapted‘ to be received in the openings in the
lapping the said translucent member, and secured, ' channel section of said metallic member, a lamp
to, said plate, having fastening ,means thereon,. socket, and a lamp extending into the bowl re
. "a re?eotor?tted into said opening in said plate,
[fastening means on the outer periphery thereof
adapted to coact with the fastening means on
?ector and opening in the plate.
LAZERSON.
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