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Патент USA US2110136

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Mmh s, 1938.
H. A. DOUGLAS
2,110,136
ELECTRIC LAMP UNI T
Filed Feb. 26, 1935
2 Sheets-Sheet l
I
Hmg A~Dou91as
I N viw‘ro
AJ- TORNLY$
March 8, 1938.
.
H. A. DOUGLAS
2,110,136
ELECTRIC LAMP ‘UNIT
Filed Feb. 26, 1935
2 Sheets-Sheet 2
“'27
Hqxrs A~DO<1510$
l N \AENTOR
ATTORLLETb
Patented Mar. 8, 1938
2,110,136
I ,
‘ UNITED STATES} PATENT 1 OFFICE
‘
2,110,136,
.
I
n
,
‘ELECTRIC LAMP UNIT
Harry A.‘ Douglas, Bronsonyltiicln, assignor to
Kingston
Products Corporation, a corporation
of In
diana
I
i
Application ‘February 26, 1935,’ Serial ,No.
8,312 '
.7 Claims. ‘(01. 240-41)
My invention relates to. electric lamp unita'arid
more particularly to electric lamp units compris
fastened to the base-22 in any suitable manner»
y
ing an incandescent electric lamp mounted in, a as by so1dering‘26 (see Figure 10).
re?ector, as in‘ an automobile headlight, and'the'
The collar 24 is here shown as adapted to be
5 principal object of my invention isto provide a
through an aperture 21 in‘ the
new and improved unit oi this type. ~
_
y
In this‘instance" the aperture 21 is
In the drawings accompanying this speci?ca
extension‘ on the re?ector 2|. ‘
t y
.
I
‘ In order to de?nitely position the lamp 20 with
15
respect to the re?ector,‘ the ?ange 25 ‘may be
10
‘Figure 1 is a vertical sectionaifview, certain
parts being fragmentarily shown,_ of one embodi
provided with circumferentially spaced indentas
ment of my invention,v
axially extending projections, only one‘
‘
7
tions 30, 3!,
32, ‘(see also Figure ‘10), forming.
Figure 2 is an end elevation of a socket unit
forming part of the embodiment of‘Fig‘ure 1,
15
Figure 3 is a plan view of the' parts shown in
used to form a portion'of the socket unit,
_
Figure 5 is a front‘ elevation of‘a' detail of the
25 socket unit,
“
,
v
_,
Figure 6 is a side elevation of the socket unit
completely assembled,
'
‘
'
25
_
Figure 7 is a front elevation of the socket unit
completely assembled,
30
‘
Figure 8_is a jfront‘ele'vation of, a portion of a' madeto gauge each other; that is, ?t snugly.
re?ector,
“
,
1
I
Adapted to cooperate with the lamp 20 is a
Figure 9 is' a front elevation of there?ector
shown in Figure 8, with the socket unit'shownin
Figure 7 assembled therewith,
85
'
30
“
‘Figure 10 is a‘transverse sectional view of ‘an
electric incandescent lamp adapted to be used
with the present embodiment of the invention,
Figure 11 is a section taken on ‘the line H—"Il
v of Figure 1, looking in the direction, of‘the ar
40 rows,‘ and
/
‘
Figure 121s a fragmentary detail sectional View;
taken‘ along the line‘ i2_‘/l2 of Figure 11, looking
in the direction vof the arrows. ‘ ‘
’
Referring to Figure 1‘,
46 invention here illustrated is shown as including‘
an incandescent electric lamp 20 adapted to be
suitably connected to a re?ector 2|, the re?ector
40
The ends of the. connector portions‘36, 3T, 38
are formed in the'shape of hooks having their
throat portions de?ned by the edges 42, 4‘3 01"
as‘ thehooks formed on the portions 31, 38 are
identical vtherewith.
e hooki‘has a mouth 44,
the sides of which, extending to the bottom there
of? are de?ned by converging lines 45, 46, forming
45
h
_
3
2,110,135
ofthe hook. The aperturings 31, 98, in 'a man- '
respectively, the trailing edges of the detents
36, ‘also form radially extending portions I33, then being opposed to the’ radial‘edges 34 of the
, I31 adapted to
cooperate. with the hooks of the detent-receiving ‘aperture portions 33. The ac
connector portions 31, 38 in a manner similar to tion of thebiasing means 12 holds the detents 36,
that described in connection with the ‘radially; 81, 88 in place and hence prevents unintended 5
extending portion
I35
disengagement of the socket unit from‘ the re
and thehookof .the con
?ector. The parts are then in the position'shown
ner. described in‘ connection with the aperturing
'nector portion36.
>
»
I, 1
I
In the event that it is desired to manufacture
'10 the socket unit out of sheet material, a blank,
/such as illustrated in ‘Figure 4, is ?rst stamped
out and shaped to the form shown in Figures 2
and 3, where the portion 35 forms a cylindrical
‘shell and the integral connector portions 36, 31,
15 38 are shaped so that the axially extending por
tions .33 along with the hook-shaped endsthereé
of'are of arcuate cross-section, the arcs being‘ of
vthe same radius, and concentric with the axis’ of
the shell 35.
20
,-
-
/
.
The contact carrier is then inserted into the
shell 35, with the projections 52, 53 in the recess
54, 55 in the end of the shell, the projection, cor
responding to the projections 52, 53, not visible
inFigure 3, being received in the‘recess 53in the
end of the shell. The ?ngers 51 are then clinched
‘ over the rear end of the. contact carrier 5|.
in Figure 9 in which the re?ector, with the socket
unit . assembled therewith,‘ is viewed from. the
front. The fit of the arcuate connector portions 10 '
36, 31, 38 in the arcuate apertures 83, 33, ‘3| may
be snug enough to gaugeor locate the connector
portions ‘with respect to the re?ector.v
' I
a If it is now desired to mount with the re?ector‘
a lamp, such as thelamp 23 of Figure 1, the 15
largerportions 33 of the aperturings 96, 31, 33
are brought into registry‘with‘ theendsof the
books of theconnector portions 33, 31, 33.
.lamp is moved
}
toward the re?ector
against the
'bias of thespring-pressed contacts 53, 63, until 20
the projections, such as 33, corresponding to the
indentations 33, 3|, 32 abut‘ the front surface of
the ?ange 28. If'the lamp'is then turned in a
clockwise direction, as viewed from the front of
the re?ector, the edges |3| of the aperture por- 25
tions 33 of the aperturings 36,‘ 91, 98 will engage
respectively the beveled portions 43 of the hook
The ring 13"of the biasing means may he slipped,
from the rear, over the connector portions 36, 31,
38, the narrow portion 84 of the apertures 8|, 82, lips and *by cam action will pull the connector
30 83 passing freely past‘the reduced portions 43 of portions 38, 31, 38 further through the re?ector
the connector portions 36, 31, 38, and the undercut against the bias ‘ of the‘biasing means 12.‘ Con- 30
portions 85 of the apertures 8|, 82,
tinuance of the clockwise rotation of the lamp
will cause the apexes I33 of the lips of the hooks
to ride over the front face of the radially extend
freely along and receiving within themthe ‘neck
portions 33 of the connector portions 36,- 31, 38.
35 The ring 13 is moved towards the ends of the.
ing portions I35, I38, I31 and then the apexes
I38 of the hook lips will snap. respectively, into 35
the smaller aperture portions I33 of the apertur
connector portions until the front face of the
.
ring '13 abuts the apexes I38 of the lips of the
The spring loops 14, 15, 16 are then ?exed ' lugs 36, 31, 38._ The hooks now have the‘ position
hooks.
,
so that the respective free ends 11 thereof are ' illustrated in Figure 12.“ Here only the connector" ‘
40
portion 36 is shown, but all of the connector por
tions assume a similar position- In that posi-‘40‘
radially inwardly into the openings 18, tion the sides 45, 46 ‘of the hook mouth straddle
the shell 35, taking the position illus
trated in Figures, 1 and 6, in which the ends 11
45 underlie the inner periphery of the .shell.
The,
assembled socket unit then has the appearance,
I in side elevation, asillustrated in~Figure 6, and
inc-front elevation as illustrated in Figure 7.
50
The socket unit may now be connected to a
and I 33 respectively of the radial .portion I35. .5
The biasing means 12 of course presses the ?ange 45
25 toward the front face of the re?ector, and
hence presses the projections 33, corresponding
to the indentations 33, 3|, 32 into abutment with
the front of the re?ector ?ange 28. Since these
projections are in radial alinement with the 50
radialportions I35, I36, I31 against which pres
sure is applied to bring the ?ange 25 into regis
try with the re?ector, distortion of the ?ange
re?ector by inserting the endsof the hooks of
the connector portions 36, 31, 38'into the aper-‘
tures 89, 33, 3| in the re?ector. The ring 13 then
abuts, and more particularly the frontwardly ex
tending detents 86, 81, 88 abut the rear of the
‘
?ange 28 of the re?ector. The circumferential 25 by that pressure is avoided;
The lamp may be assembled with the position- 5;,
width of the hooks between the outer axial edges
42, 48 thereof, is greater than-the circumferential ing means 23 by placing the'positioningmeans
width of the respective apertures 83, 33, 3|. on a standard with the lamp base within the
Hence as the .hooks'are inserted in those aper
60
the radial portion I35, of the lamp base ?ange 25,
those sides‘ being in‘ contact with the edges IN
tures the beveled edges 41‘ of the ends of the
throats of the hooks will engage the respective
radial edges 34 of those apertures. By.turning
the socket'unit 34 bodily in a direction such that
the beveled portions 49 of the hook lips engage
the radial edges 35 of the apertures,,83,‘f33,-;9|
respectively, the resulting cam actionbetween
those beveled edges ‘and the radial edges 95 pulls
collar 24 and then adjusting the lamp until the
lighting center of the desired ?lament thereof is
in a predetermined position, whereupon the col
lar 24 is soldered to the lamp-base. The posi
tion of other ?laments of the lamp may be like
wise predetermined.
It will be evident from the foregoing that my
invention provides a means w ,ereby a lamp may 65
be connected to a re?ector with the lighting cen
the connector portions 36, 31,38 further through ter of a ?lament thereof at a predetermined ,
the re?ector‘ apertures, against the increased point with respect to the re?ector, and also that
70 bias of the biasing means 12, until the ‘apexes the position of the lamp about its axis will be pre
I38 of the lip portions of the hooks ride onto
the front surface of the ?ange 28. ‘Su?lcient ro
tative movement of the socket unit in ‘the same
direction causes the detents 86, 81, 88 to snap
into the portions 33‘ of the apertures 83, 33, 9|
determined so that the proper contacts thereon 70
will be brought into engagement with contacts
on a socket unit which in turn has the position
of its contacts about the axis of the socket pre
determined with respect to the re?ector.
When it is desired to disconnect a lamp from 75
2,110,136
4,
body having connector portions having lateral
the reflector, the lamp is turned counter-clock- ' extensions; 9, member adapted to abut said lat
wlse'as viewed‘in- Figure 11, whereby’ the edges eral. extensions, vsaid member having a first ap
I03 of the radial portions I05, Hi6, I01, by cam erture, and compound auxiliary apertures dis
actioniagalnst the sides» 46 of the hook mouths, posed aboutsaid first aperture, said auxiliary ap
forcethe connector portions 36,31, 38 .frontward
ertures .forming radial extensions of said aper
ly, against the. bias of the biasing means ‘I2,there- ‘
byipermitting disengagement of the lamp", as will‘
be
evident..;w.
-.
.
v
.
v
.
ture; saicl;v compound apertures each comprising
which one of said con
' a . first portion " through
nector portions extends and a narrower portion
I
The socket ,unitrmay be. disconnected. from the V joining said?rst portion and said ?rst. aperture. 10
3.~An incandescent electric lamp, having a
- the .?ange28,‘ to- disengage ‘the'detents 86,81; base provided with a lateral extension, said lat
88 .from the aperture portions 8310f" the aper
eral extension being‘ provided with'a' plurality of v
re?ector either by movingithe ring 13, away from
'
1o
.
tures 89,90, '9'l,.or, by ?rstdisen'gaging the ends
circumferentially spaced sets of apertures, each
11 of the spring "loops-.14, 15, 16' from‘the aper
set-j including .two separate circumferentially
tures'lB, v‘I9, 80, whereupon. the entireabiasing spaced apertures.
.
y
~
. .
means 12 may be slippedrearwardly off of the
9 4.v In combination: a mounting, having'a plu-.
connector? portions'.36,~.31, '38. ' ,In either. casejthe rality ‘of. apertures; ‘an incandescent electric
is
socket may then be turned sons to disengage the ' lamp, having a base; a lateral extension on said
hooks on the connectoraportionsj?, 31, 38 from base provided with a plurality of circumferen 20
tially spaced sets of apertures, each set including
apertures 89,90, 9i.“
20 theIn'viewof»
the foregoing'it‘will be apparent to " two ‘separate circumferentially spaced apertures;
those skilled in the art that the-herein disclosed a holdingunit for said lamp, having portions dis
embodiment of my invention provides a new and posed through said mounting. aperturesv and
improved incandescent electric lamp unit, and through'one aperture of each of said sets of ap 25
accordingly'accomplishes at least the principal ertures respectively; and said‘ portions of said
25
object of :-my invention.
‘ ’
Y‘ '
-'
holding unithaving partsoverlying said lateral
,It' will'jalso be: obvious to those skilled in the, extension between ‘said separate apertures and
embodied. in other .
.
.
V
,
art that my invention may be
extending into the other apertures 01 each of said
constructions wherein the. reflector,‘ or other
sets ofapertures-respectively.
mounting for the lamp, the socket unit, ‘and ‘the
invention.
4
"
.
.
'
.
'
including two separate circumferentially spaced
in the art that the features of vmy invention may
ri?ci‘ngall of the advantages, thereof, and 'ac-'
cordingly, that the disclosure ‘herein is illustrative
only, ,and. that my invention is not limited
I claim:
'
‘:1
_.
'
I‘
I
a
"
i‘
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'
.y
a
,_ 1. A holding unit, vfor cooperation’ with] an in
candescentv electric lamp," adapted to be‘ connect‘
ed'to a mounting, comprising: a socket body, said
body having circumferentially spaced connector
_' portions having lateral extensions; a member
adapted to abut said’ lateral extensions; resil
so
35
apertures; and projections on a face of said lat-'
eral extension extending . in the general direc
be individually. changed and modi?ed, without
departing from the spirit of myinvention or sac";
1
30
' cumferentially spaced sets of . apertures; each set
.
In general it will be: obvious‘; to those skilled
thereto.nj
'
provided with a lateral extension; said lateral
extension being provided with a plurality of cir
variously changed and modi?ed within the spirit
oflthe
~
, 5.. An incandescent electric lamp, having a base
30
. lamp and its base, may assume a variety of-forms,
ient means for biasing said ‘member toward said
ateral extensions; said resilient meanshaving a
free end directed ‘toward saidasocket body; and
said socket body. having an opening "in its pe
riphery for receiving said'iree end, said free end
reacting against a; margin of said opening.
2. A holding unit‘. for cooperation with an in
candescent electric lamp, adapted to be connected
to- a mounting, comprising:‘ a socket body, said
tion of the vaxis of said lamp and disposed in sub-v
stantialradial alinement with the spaces ‘between
said ‘separate apertures respectively.
40
6. An incandescent electric lamp, having a base
provided with a lateral extension; said lateral‘
. extension being provided with a plurality of cir
cumferentially spaced sets of apertures, each set
including two! separate circumferentially spaced
apertures, one of which is of materially greater
circumferential extent than the other.
f7. An incandescent electric lamp, having a base
provided with‘ a lateral extensionysaid lateral
extension being provided with a plurality of cir 50
cumferentiallyspaced sets of’ apertures, each set
including. two separate circumferentially spaced
apertures, ‘at least one of said separate apertures
of. each of said sets having radially outer and
inner peripheries de?ning radially spaced arcs
‘concentric with the axis of said lamp.
Y
.
-
RY A. DOUGLAS.
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