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Патент USA US2110131

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March 8, 1938..
2,110,131
c. w. 'ANKLAM
ATTACHABLE SOCKET FOR FIXED FOCUS LAMPS
-
Filed Oct. 16, 1933
INVENTOR
62am! as iK/Zn/Addm
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* Mm 1AM Mia“
q
ATTORNEYS
2,110,131
Patented Mar. 8, 1938 Q "
omen STATESi rim-r orrlca
2,110.1:1
v
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.
s'rrsonsam socxa'r ron rrxnn FOCUS a
name
.
Charles w. Ankiam'. ‘Detroit. . Mich” assignor. by
assignments, to Kingston Products Cor- ' _
pora'tlon, a corporation ‘of Indiana
Application October 16, 1988, Serial No. 693,870
'
1: Claims. ' (01. 240-41)
The invention relates to lamps, and more par- _ ing the lamp with the ?ange C engaging the re
cess I‘, it will be properly positioned in relation '
ticularly to vehicle head lamps of the so-called
mounted in, ?xed relation to the re?ector.
to the re?ector. The bottom 1-! of the recess 1'‘
is here shown as provided ,with a central aper
focus head lamps it has heretofore been pro
parts of ‘the structure of the ?ange C and the _5
‘?xed focus type where the lamp is non-adiustably
In order to increase the‘accuracy‘of the fixed 4 ture W large‘enough to leave- free the adjacent
lamp base in general.
posed to provide the lamp with,an annular ?ange
I
arranged in very accurate relation with the'?la
ment or ?laments of the lamp and adapted to
g
'
for providing electrical connections therewith. I‘
have devised a .iamp socket whicin however, is
seat within a recess in the re?ector itself. '
-
It is the primary object of the-present inven
detachable from the re?ector, the construction. 10
adapted for a head lamp using the aforemen
I is a cylindrical socket member within which
is arranged the insulator plug J for supporting
the spring contact members K of any suitable 15
construction. The member I is provided with a
tion to obtain an improved construction of socket - being’ as follows:
tioned type champ and re?ector.
7
Another object of the invention is to provide
a lamp- socket attachable and detachable ~ from
the re?ector as a unit.
?ector.
'
g
.
radially outwardly extending flange L terminating
in a longitudinally extending ?ange M forming
'
A further object of the invention is to provide
a lamp socket adapted to insure very'accurate
regic‘..ation oi’ the lamp with respect to the re-_
20
'-
For, retaining the lamp in this position, and
the cup for receiving a coil spring 0.
P is a
cupped'member for engaging the opposite end n
of the spring 0 and centrally apcrtured to pro- "0
.
These and other objects are attained with the vide clearance for the lamp base D. The mem
construction as hereinafter more fully described. ’ bers I and P are secured to each other by a plu
rality of headed pins Q. The heads R, at the
,In the drawing:
' . .
_
Fig. l is an axialsection‘ through a portion of forward ends of these pins. have a shouldered
25 a head lamp to which my improvement is applied; engagement with the member P. as indicated at
R’. and are adapted to pass through the large ends
Fig. 2 is a- front elevation thereof:
Fig. 3 is a perspective view of the reflector and of tapering segmental slots 8 in the lamp ?ange C.
To mount the socket on the re?ector the latter
the lamp socket detached therefrom. _, l
I
As illustrated. A is a portion of a paraboloidal 1 is provided with apertures T through which the
3 O ‘ re?ector and B is a lamp provided with exactly‘ heads R of the pins Q may pass, and the member
positioned locating- means. As speci?cally shown, B P is then locked by a plurality of spring, clips U ‘
- the locatingimeans for‘ the lamp B comprises having hooked ends U’ passing through slots UI >
_an annular ?ange C which surrounds the metallic .-in the re?ector.’ when thus attached. the lamp
lamp base D, and which is'provided with three may be readily secured in/ position by engaging ~35 ‘
e:e c:
‘embossed bearing points I! on the rear side thelarge ends of the slots 5 with- the heads R
thereof. In the ‘manufacture of this lamp the ' and then turning the ?ange C to engage the heads
?ange C is so positioned that its periphery‘ is with the tapering portion of said slot. This ac-‘
exactly concentric with a longitudinal axis‘ tion will cam outward the heads It. so as to sepa
through the lamp having a predetermined rela rate the shoulder R‘ from' its bearing on the mem- 40
4 tion to the filaments. Also, the vbearing points her P and place the tension of the spring 0 on'
ii are in a plane‘perpendicular to this axis and the pins Q. 'lhis will hold the bearing points it
on the flange C. in ?rm contact with the bottom
spaced ‘from the filaments an exactly ‘prede
He! the recess. To hold the socket from any‘
termined distance."
Y ‘'
'
rotative displacement with respect to the re- 40
To
simplify
the
construction,
and
also
to
ob-,
>
4a
‘tain the exact positioningof' the lamp ?laments ?ector. the rear face of the recessed portion of
latter is provided with struck out prongs V
with respect to the'lre?ectorkf have provided the the
which
engage registering recesses v' in the mem
latter with a\central recess 1" formed integral
‘ -\ ‘therewith. The peripheral wall Ci of this recess ber P. Thus when the ?ange C is turned to bring
' no is concentric with an axis passing through the the heads R to the limit of the tapering slots 8, 50
focal point of the re?ector. and is of a dimension the ?lament or ?laments will be accurately posi
to exactly fit the periphery of the ?ange C. Also ‘ tioned-with respect to the focal point 'of the
Y
the bottom 1-! of the recess is in a plane perpen ‘re?ector. .
The ccnstruction‘above described has the ad
dicular to'this axis and spaced from the local
5;‘ point an exact distance. Thus by merely place x vantage that 'the lamp socket is a separate unit 55 ’
’
2
2,110,181 A
from the re?ector and may be readily attached
of a lamp socket comprising a pair of reversely
or detached. Also the single spring 0 arranged ' turned cup shaped members, the rear member
between the elements L, and P serves to place thereof having mounted thereolithe electrical
tension upon all of the pins Q. Thus the con
struction is simple, can be manufactured at low
cost, and may be quickly engaged with any re-'
?ector without regard to its specific design. _
‘While I have shown and described one form
>which my invention may assume, it’ will be, un
10 derstood that this disclosure is illustrative only,
andv that my invention is not limited thereto.
contacts, arspring having itsopposite ends seated
in said cup shaped members, a plurality of pins
secured to the rear cup shaped member and pro
vided with shoulderedheads engaging the for- . '
ward face of the forward cup shaped member,
said shouldered heads being adapted to pass _
through registering apertures in the recessed
portion of .said re?ector into operative engage
ment with the slots in said ‘positioning ?ange,
1. In,a ?xedv focus lamp assembly, the com- . means for holding said socket and said re?ector
bination with a concave re?ector provided with from relative rotational, movement, and clips for
.15 a central recess,.and a lamp having a positioning holding said socket to saidre?ector.
?ange engaging said recess and provided‘ with a
v5. In a\ lamp assembly, the combination with
plurality of segmental slots, of _a contact carrier a lamp having a positioning ?ange surrounding
detachably engaging‘ the rear of said re?ector, the~base thereof and in'predetermined relation
said carrier comprising two relatively movable ‘ to the ?lament or ?laments of, the lamp,‘ said
What I claim as my invention is:
‘
l’ '
20 members, a spring, between said members,'and‘
pins, having heads, connecting said members‘ and’
limiting the relative movement thereof under
the tension of said spring, said re?ector being,
provided with registering apertures constructed
I25 and arranged-for the passage of said heads there
through, and said heads being adapted to pass
through said registering apertures in said re?ece
tor into operative engagement with the slots in
said, ?ange.
30
.' ‘
‘
,
depressed to form.- a recess for receiving and co
operating with said ?ange, centraily apertured for ,
the passage of the lamp base therethrough, and
having slots for registering with the segmental
apertures of said ?ange, a- socket in rear of said
re?ector for engaging said lamp base and pro
vided with a pluality- of pins passing through, '
said apertures in the recess of said re?ector and
2. In a ?xed focus lamp assembly, the com
positioned for engagement with the ‘segmental
bination with a concave re?ector provided with
slots of said ?ange, and a single spring for placing
a resilient tension on said pins to retain said‘
?an'ge in, engagement with said recess.
6. In a lamp assembly, the combination with
a lamp, having a positioning ?ange surrounding
a centralv recess, and a lamp having a positioning
?ange seated in said recess and provided with a
plurality of segmental slots‘, of a lamp'socket for
35
?ange beingdprovided with a plurality of seg
mental slots, of a paraboloidal re?ector centrally
detachably engaging the rear \of(said re?ector,
the base thereof, and in exactly predetermined.
relation to the ?lament or ?laments of the lamp,
extending forward from‘ said member, a member ' said ?ange having slots therein, of a paraboloidal
slidably engaging said pins adjacent the forward re?ector centrally rearwardly embossed to form
said socket comprising amember for carrying
the electrical contacts, a plurality of headed pins
40 heads thereof, a spring surrounding said pins “ , a recess for receiving and cooperating with said
and engaging said members, said re?ector being
?ange, centrally recessed for the passage of the
provided with i'egisteringpapertures constructed lamp base therethrough, and having apertures
and arranged for the passage of said heads there
through, and said heads of» said pins. being in
for registering with the se ental slots ,of said
?ange, a lamp socket comprising a pair of cupped
sertable through said registering apertures in‘ members and a spring therebetween and a plu- I
said re?ector-into operative engagement with rality of headed pins for securing said members
the slots in said ?ange, andseparate means for
preventing relative rotational mcvementvof said
socket and said, re?ector.
i‘ _. -
X.
Y
3. In a iixed focus-lamp assembly, the ‘com
bination with a concave re?ector provided with
I a central'recess, and a lamp-having a positioning
to each other, said- pins being positioned; to reg
ister with the apertures in said re?ector and
with the slots in said ?ange,‘ the rearemember
of
d socket having mounted thereon the in
sula
_ electrical contacts for the lamp" and the
forward member being apertured for receiving '
,?ange seated’ in said recess and provided with a _ ‘the base of the bulb,_-and clips for-securing the
plurality- of segmental slots. of a lamp ‘socket . forward member of said socket to said re?ector ‘
fordetachably engaging the rear of said re?ector, ' whereby said pins may be engaged by the-seg
said socket comprising a member for carrying the mental slots of said ?ange and whereby said
electrical contacts,‘ a pluralityroirheaded pins spring will place a resilient tension on said pins '1 ‘
extending forward from saidmember, a member to retain said ?ange in engagement with said
slidably engaging said pins adjacent the forward
a heads thereof,- a, spring surrounding said pins and
7. In a lampassembly, the combination of a '~ ‘
engaging said members, said re?ector being pro
concave re?ector, alarnp having a ‘securing, ?ange
videdwith registering apertures constructed and engageable with ‘said re?ectgr, a contact carrier _
arranged for the passage of said heads there‘ engaging the rear of said re?ector, ‘said carrier
through, and said heads of ‘said pins being in
comprising two relatively movable members, a
sertable through said registering apertures in said spring‘ between said members, ‘and pins, having
recess.
'
'
'
“
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~
‘
re?ector into operative engagement with the slots _heads, connecting said members and limiting '
in said ?ange, separate means'vi'or preventing the relative movement. thereof under tension of
relative rotational movement of said socket and said "spring, said re?ector being-provided with
said re?ector, and clips for securing said socket registering apertures constructed and arranged
to said re?ector.
'
'
'
'
'
for the passage of said‘ heads therethrough,,and
4; In a ?xed focus vehicle lamp, the combina
'said headsbeing adapted to pass through-said
tion with aconcave re?ector provided with a," registering aperturesiin said re?ector‘ into op
v~centralsrecess, and-a lampqhaving'a positioning - erative '~ engagement
fiange, thereby
7
?ange seated in said recess and provided with holding said carrier and said lamp in ?rmen
a plurality of segmental slots through said ?ange. ' gagement with said re?ector. ,
'
3"
, aiionsi‘ ‘
B. in a lamp assembly, the combination or means for connecting~ said‘lamp to said mount
‘a concave re?ector, a lamp "having a securing, _ lng,_ including,‘ a lateral extension on said base,
?ange engageable with said re?ector, a lamp a projection having a transverse extension at
socket engaging the rear 01' said re?ector, said its free end for engaging said lateral extension
on said base, a carrying “member having an
socket comprising two relatively movable mem
aperture through which said projection is dis-
bers, a'spring between said members, and headed
pins \connecting said members and limiting the
.
relative movement thereof under tension 01' said
to press said ,and resilient means act
transverse extension against said; lateral exten- ,
spring, the forward ends of said pins being sion, to-press said lateral extension against said
mounting, ‘and ,to' press said transverse exten 10’
adapted to pass through said re?ector into opera
tive engagement with said ?ange therebyholding sion against said carrying member when said
.' ,
.
said socket and said lamp in ?rm engagement lampisremoved.
with said re?ector, and auxiliary means for se-. = -_ 12. A unitary device, constructed and arranged
curing said socket-to said re?ector when said to connect an incandescent electric lamp to a
lamp is removed.
Y mounting, comprising: a’ carrying member; at‘ V15
_
least three circumierentially spaced projections‘
carried by said carrying member and extending
transversely to the general plane ‘of said carry‘
ing member; said projections having lateral ex;
9. In a lamp assembly, the combination oi’
‘ a concave re?ector, a lamp having a ?ange ior
' engaging the front side of said re?ector, a socket
engaging the rear "side oi said re?ector, resilient
engaging means on said socket engageable with
.tensions at their free ends; a washer member on 20*
.
said‘?ange 01’ said lamp to hold said socket and said projections between said lateral extension
said lamp in engagement with said re?ector, and said carrying member, said washer member
said engaging means passing ireely through said having apertures the margins of which ?xedly
:re?ector in a direction normal to said re?ector restrain movement .otsaid projections relatively
from the position said engaging means occupies . to each other both circumferentially and radially,
when holding said ?ange, thereby permitting. andresillent means biasing‘ said washer member
removal of said lamp socket from the rear when ' toward said lateral extension.
13. _In_|comblnation: ‘an electric lamp having
said lamp is removed from the front, and aux
iliary‘ retaining means for holding‘ said lamp a base provided with a lateral extension having
socket to said re?ector when‘ said ‘lamp bulb an arcuate slot therein; amounting" having an
is removed. ,
'
'
aperture; , unitary _ pressing
means,
detachably
,
25
30
'
'
10. In combination? an electric ‘lamp having seemed as a unit to said mduntingl said press
1 a base; a mounting for said-lamp; means 101'
ing means including a'carrier member, and in
cluding also a projection disposed through and
ins. a lateral ‘extension on said base, engaging spaced from the margin oi/said aperture, said 35.
'means for engaging said lateral extension. re-L projection beingcarried by said carrier member,‘
connecting said lamp to said mounting, includ
silient means acting to press said engaging means ,and unitary with said carrier member, con-.-v
against said lateral extension, to press said lat
' eral extension against said mounting, said en
gaging means and said resilient means compris
ing a unit removable from said mounting 'upon:
structod and" arranged to cooperate with said
arcuate slot, and so constructed and arranged
that upon rot
movement of said lamp said
projection presses said;lateral extension against
disengagementv of said lamp;' and an auxiliary . said mounting; and separate means for prevent
_ .
member tor holding said unit on said ‘mounting
ing relativerotational movement'oi’ said unitary"
upon removal of said lamp.
pressing means and said mounting. "
v
45
,l1."In combination: an incandescent ‘electric
‘lamp having \a‘base; a mounting !or said lamp;
. CHARLES w. ANKLAM.
cERT'IFIcArEoF CORRECTION. , -'
aiierch .8} 1958.
Patent no. 2,110,131- '_ ' '
H. ANKLAH.
, It is hereby certiified. that Em‘ appears in‘ the printed specification
of the‘above’ rainbered patent requiringjcorrec-tion as follows: Page 3 , first
‘column, -_beginnin'g'with‘line 145, strike out allto and/including line l2,
‘ second column, comprisingv claim 11, suitor-present claims 12 and 15=read
11 a.nd_12 respectively?" and that- the --said- Letters Patent should be read
with these corrections -therein that'the some may conform to therecord of
the case in the-Patent orrieel ‘
signed‘
sealed this 3d day 01" Hay,
D“. .1938.
.
‘ (Seal) _.
Henry Yan'ArsdaIe‘;
v
_
.iLcting Gcmissionerot Patents.’
3"
, aiionsi‘ ‘
B. in a lamp assembly, the combination or means for connecting~ said‘lamp to said mount
‘a concave re?ector, a lamp "having a securing, _ lng,_ including,‘ a lateral extension on said base,
?ange engageable with said re?ector, a lamp a projection having a transverse extension at
socket engaging the rear 01' said re?ector, said its free end for engaging said lateral extension
on said base, a carrying “member having an
socket comprising two relatively movable mem
aperture through which said projection is dis-
bers, a'spring between said members, and headed
pins \connecting said members and limiting the
.
relative movement thereof under tension 01' said
to press said ,and resilient means act
transverse extension against said; lateral exten- ,
spring, the forward ends of said pins being sion, to-press said lateral extension against said
mounting, ‘and ,to' press said transverse exten 10’
adapted to pass through said re?ector into opera
tive engagement with said ?ange therebyholding sion against said carrying member when said
.' ,
.
said socket and said lamp in ?rm engagement lampisremoved.
with said re?ector, and auxiliary means for se-. = -_ 12. A unitary device, constructed and arranged
curing said socket-to said re?ector when said to connect an incandescent electric lamp to a
lamp is removed.
Y mounting, comprising: a’ carrying member; at‘ V15
_
least three circumierentially spaced projections‘
carried by said carrying member and extending
transversely to the general plane ‘of said carry‘
ing member; said projections having lateral ex;
9. In a lamp assembly, the combination oi’
‘ a concave re?ector, a lamp having a ?ange ior
' engaging the front side of said re?ector, a socket
engaging the rear "side oi said re?ector, resilient
engaging means on said socket engageable with
.tensions at their free ends; a washer member on 20*
.
said‘?ange 01’ said lamp to hold said socket and said projections between said lateral extension
said lamp in engagement with said re?ector, and said carrying member, said washer member
said engaging means passing ireely through said having apertures the margins of which ?xedly
:re?ector in a direction normal to said re?ector restrain movement .otsaid projections relatively
from the position said engaging means occupies . to each other both circumferentially and radially,
when holding said ?ange, thereby permitting. andresillent means biasing‘ said washer member
removal of said lamp socket from the rear when ' toward said lateral extension.
13. _In_|comblnation: ‘an electric lamp having
said lamp is removed from the front, and aux
iliary‘ retaining means for holding‘ said lamp a base provided with a lateral extension having
socket to said re?ector when‘ said ‘lamp bulb an arcuate slot therein; amounting" having an
is removed. ,
'
'
aperture; , unitary _ pressing
means,
detachably
,
25
30
'
'
10. In combination? an electric ‘lamp having seemed as a unit to said mduntingl said press
1 a base; a mounting for said-lamp; means 101'
ing means including a'carrier member, and in
cluding also a projection disposed through and
ins. a lateral ‘extension on said base, engaging spaced from the margin oi/said aperture, said 35.
'means for engaging said lateral extension. re-L projection beingcarried by said carrier member,‘
connecting said lamp to said mounting, includ
silient means acting to press said engaging means ,and unitary with said carrier member, con-.-v
against said lateral extension, to press said lat
' eral extension against said mounting, said en
gaging means and said resilient means compris
ing a unit removable from said mounting 'upon:
structod and" arranged to cooperate with said
arcuate slot, and so constructed and arranged
that upon rot
movement of said lamp said
projection presses said;lateral extension against
disengagementv of said lamp;' and an auxiliary . said mounting; and separate means for prevent
_ .
member tor holding said unit on said ‘mounting
ing relativerotational movement'oi’ said unitary"
upon removal of said lamp.
pressing means and said mounting. "
v
45
,l1."In combination: an incandescent ‘electric
‘lamp having \a‘base; a mounting !or said lamp;
. CHARLES w. ANKLAM.
cERT'IFIcArEoF CORRECTION. , -'
aiierch .8} 1958.
Patent no. 2,110,131- '_ ' '
H. ANKLAH.
, It is hereby certiified. that Em‘ appears in‘ the printed specification
of the‘above’ rainbered patent requiringjcorrec-tion as follows: Page 3 , first
‘column, -_beginnin'g'with‘line 145, strike out allto and/including line l2,
‘ second column, comprisingv claim 11, suitor-present claims 12 and 15=read
11 a.nd_12 respectively?" and that- the --said- Letters Patent should be read
with these corrections -therein that'the some may conform to therecord of
the case in the-Patent orrieel ‘
signed‘
sealed this 3d day 01" Hay,
D“. .1938.
.
‘ (Seal) _.
Henry Yan'ArsdaIe‘;
v
_
.iLcting Gcmissionerot Patents.’
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