close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3019438

код для вставки
Jan. 30, 1962
w. c. ARRASMITH
3,019,428
MOUNTING AND LATCHING MEANS FOR ANNUNCIATOR LAMP HOUSING PANELS
Filed May 17, 1960
2 Sheets-Sheet 1
555%
? ÁÁJÉO Mv
Jan. 30, 1962
w, c. ARRASMITH
3,019,428
MOUNTING AND LATCHING MEANS FOR ANNUNCIATOR LAMP HOUSING PANELS
Filed May 17, 1960
2 Sheets-Sheet 2
F' ,10
¿62 ß
à,
3,019,428
ares Patent
Patented dan. 30, 1962
2
Copending application 825,461, which was liled July
3,019,428
7, 1959, and which has now issued as Patent 2,959,774,
is also concerned with annunciator apparatus similar to
that disclosed and claimed in Patent 2,934,752. In the
MOUNTING AND LATCHING MEANS FOR AN
NUNCIATOR LAMP HOUSING PANELS
William C. Arrasmith, Beverly Hilis, Calif., assigner to
Radar Relay, Inc., Santa Monica, Calif., a corporation
of California
Filed May 17, 1960, Ser. No. 29,644
9 Claims. (Cl. 340-381)
5
copending application, however, the construction is such
that the translucent lamp housings can be mounted
tlush with the front surface of the control panel. This
liush mounting of the lamp housings is advantageous,
for example, in the cockpit of an aircraft where project
The present invention relates to equipment and appa
ratus for monitoring a plurality of conditions, and it is
more particularly concerned with an improved annuncia
tor unit for providing visual indications at a central sta
tion of the happenings of monitored occurrences at dif
ferent remote points.
Anuunciator systems and equipment are generally well
known. One type of annunciator system, for example,
is disclosed and claimed in Patent 2,887,677, which
ing elements can be dangerous and are a nuisance. More~
over, the method whereby the different translucent lamp
housings may be removed is such that these housings
can be supported directly adjacent one another to occupy
a minimum of space on the control panel. This is most
important in practically all applications of units of this
type because space is usually at a premium.
in accordance with the teaching of the copending ap
plication 825,461 referred to above, the individual lamp
issued May 19, 1959, in the name of the present inven
housings may be positioned closely adjacent to one an
tor. The annunciator system described in the patent 20 other on the control panel andV yet be conveniently re
includes electrically energized lamps which are mounted
movable on an individual basis and without interference
in individual lamp housings, which, in turn, are sup
from the adjacent housings. This removal of any one
ported on a central control panel. Appropriate circuitry
ofw the lamp housings is achieved merely by depressing
is provided for connecting the lamps to different sensing
the lamp housing to be removed and then releasing it.
elements. These sensing elements are located at difter
The subsequent release of the larnp housing causes the
ent points remote from the central control panel, and
associated latching mechanism, in the manner described
they serve to indicate the occurrence of different condi
in the copending application, to displace the particular
tions which are to be monitored by the system. Each
lamp housing to a position in which it protrudes out
of the sensing elements in the system described in the
from the plane of the control panel and out from the
patent may include, for example, a pair of normally 30 front surfaces of the other lamp housings. This places
open electric contacts. These sensing elements are con
the particular lamp housing in a position in which it
structed to respond to the occurrence of the different
can be quickly and easily removed from the assembly.
monitored conditions, and when any one of the moni
tored conditions actually occurs, the electric contacts in
lamps may be replaced.
the corresponding sensing element close.
The electrically energized lamps used in the different
The present invention is also directed to the flush type
of annunciator equipment such as is disclosed and
annunciator units are preferably mounted in pairs in the
individual lamp housings so that the indication will not
claimed in the copending application 825,461. An im
portant object of the Present invention is to provide such
be completely lost should one of the lamps burn out.
annunciator apparatus which is constructed in an im
proved manner to be rugged in its construction.
A further object of the invention is to provide such
an improved type of annunciator apparatus in which each
Each of the lamp housings in the apparatus described
in the patent has a front surface which is suitably in
scribed. These inscriptions are not normally visible,
however, they do become clearly visible when the corre
sponding lamp housing is illuminated by the energizing
Such removal is usually desirable so that burned out
flush type lamp housing may be positively actuated be
tween a released condition and a latched condition, and
of its lamps.
The inscriptions on the iront surface of 45 in which each lamp housing is firmly and positively held
the individual lamp housings may read, for example “Air
on its associated capsule when in the latched condition,
Oli,” “Empty,” “Parachute Released” and so on. In
Yet another object of the invention is to provide such
each instance, the illuminated inscription serves to iden~
an improved annunciator unit in which the associated
tify the particular condition monitored by its associated
lamp housing may be caged to its corresponding capsule
sensing element, and which condition has actually oc 50 so as to prevent the removal and the likelihood of sub
curred to cause the contacts in its associated sensing ele
ment to close.
Patent 2,934,752, which issued April 26, 1960, in the
name of the present inventor also discloses and claims
sequent erroneous replacement of the lamp housing in
the wrong capsule. `It is Obviously rnost important that
each inscribed lamp housing be plugged into the proper
capsule, or its inscriptions will not properly identify which
monitored condition has actually occurred.
an improved type of annunciator system and apparatus. 55
The annunciator system disclosed and claimed in the
ln the embodiment of the invention to be described,
latter patent is also of the general type described above`
the individual translucent lamp housings each has an
ln the apparatus described in the latter patent, the con~
elongated plug member extending from it and into a hole
trol circuits and elements associated with each of the
in the front edge of the associated capsule. The capsule
diiferent lamp housings are positioned in a small rec 60 is provided with an apertured upstanding support mem
tangular shaped capsule. The corresponding translucent
ber which is spaced inwardly from the front edge of
lamp housing is constructed to plug into the front edge
the capsule and which receives the plug member. The
of the particular capsule. These capsules are constructed
construction is such that the plug member slides in
so that they may conveniently be mounted on top of
the support member as the lamp housing is moved be
one another to be held in an assembled stacked rela 65 tween its latched and its released position. This pro
tionship. The stacked capsules are then mounted on a
vides a positive support for the plug because it is slid~
central control panel, and the corresponding translucent
ably supported at spaced points by the front edge of
lamp housings are plugged into respective ones of the
the capsule and by the apertured supporting member.
front edges of the capsules. TheA lamp housings are so
This, in turn, assures that when the lamp housing is
plugged into the front edges of the capsules from the
70 moved between its released and latched condition, such
front of the central control panel and through appro
motion will vproceed smoothly along a guided path.
priate openings in the panel.
`
The construction described briefly in the preceding
acreage
3
4
'paragraph is also advantageous when it is desired to cage
îthe lamp housingto the capsule, for the reasons de
The annunicator capsules 1t) are held together in a
stacked condition by a plurality of bolts I4 which ex
scribed above».
The caging vmay be achieved by the
tend through the entire stack and which have appropriate
simple provision of a stop Imember at the extremity of
_the plug and on the opposite side of the supporting mem
nuts threaded to their extremities to hold the stack of
îber. The stop member is made large enough so 'that
it 'cannot pass through the aperture in the apertured
support member. Alternatively, and as `will be described
sules is supported on the rear face of a control panel 16
The individual capsules may be spaced rearwardly from
in a second embodiment of the invention, the stop mem
the rear face of the control panel lo by a plurality of
capsules in an assembled condition.
The stack of cap
by means of a plurality of screws, such as screws 18.
ber and the aperture in the support member may have 10 spacer members 2@ which may be inserted between the
a mating configuration. These configurations may be
leading edge of each of the capsules 10 and the rear face
such that the stop member will pass through the aper
of the panel 16.
ture only for a particularl angular position of the plug.
Each of the capsules yl0 includes a movable member 2,2
This causes the lamp housing to be caged on its asso
associated with it. As shown in FIGURES l and 2, the
ciated capsule, but it permits 'the _lamp housing to be 15 movable members 22 may have a generally elongated rec
removed if so desired by >turning the plug to a particu
tangular configuration, and they are received by corre
lar angular position.
v
sponding openings in the panel 16 and are supported on
The features of the invention which are believed to be
the front edge of their respective vcapsules 10 in a 'manner
new are set forth in the claims. Theinvention itself, how
ever, together with further objects andv advantages, can 20
best be understood by reference to thefollowing descrip
tion when taken in conjunction with the accompanying
drawings, in which:
to be described.
p
’
As shown in FIGURE 2, for example,>each of the mov
able members 22 has suitable inscriptions formed on its
front face. These inscriptions identify the particular haz
ardous condition monitored by that particular movable
FIGURE ‘lis a rear perspective view of a plurality of »
member. Whenever the particular hazardous condition
'capsulesassembled in a stacked condition and mounted 25 actually occurs, and in a manner to be described, the
on a >control panel, each of the illustrated capsules con
resulting closure of a pair of contacts in a sensing ele
taining circuitry and` control elements for electrically en~>
ment causes a corresponding pair of electrically ener
ergized lamps which are contained in a corresponding
plurality of lamp housings whichV are mounted on the
gized lamps to illuminate a corresponding one of the
movable members 22. For this purpose, the movable
different capsules in accordance ,with the concepts of the 30 members are formed of a translucent'material, and they
'
’
serve as housings for the electrically energized lamps.
invention;
FIGURE 2 is a front view of the panel of FIGURE l
As shown, for example, in FIGURES 1 and 3, the mov
able members 22 are supported by their corresponding
capsules 10 in positions such that their front faces are
35 flush with the frontface of the supporting panel 16.
faces;
'
FIGURE 3 is atop View of one of the capsules of FIG
This, as mentioned above, is convenient in that it not only
URE l, with the coverl being removed for purposes of
removes the undesirable condition of having projecting
clarity, and this view illustrating the manner in which a
elements in a cockpit, for example; but in addition the
translucent lamp housing is supported in a latched condi
improved latching mechanism of the invention permits
40
tion on the front edge of the capsule so that the housing
the different movable members 22 to be mounted closely
may be flush with the front surface of the control panel;
adjacent one another and yet be removed in a simple
FIGURE4 is a View, similar to the view of FIGURES,
manner without interference from the adjacent movablev
but with the lamp _housing released from its latched con- '
members, as will be explained.
dition so as to permit the replacement of lits electrically
As noteabove, each of the capsules 10 contains the 45 circuitry and controlelements necessary Vto control the
FIGURES 5, ,6,V 7 and 8 are fragmentary schematic
pair of electrically energizedlamps housed in the movillustrations of a latching and support mechanism con
able member ‘22 associated with that particular capsule.
to show the Afront faces of theïdilïerent lamp housings and>
typical inscriptions whichmayy be carried on the front
energizedlamps;
'
'
'
structed in accordance with the concepts of the inven- _
For this purpose, each of the capsules has a pluralityV of '
tion and which serves to releasably support the lamp hous
terminals designated 28A, 25B, 28C, 28D and 28E
ing on its associated capsule, these views illustrating sub 50 mounted on its rear edge, and each of the capsules has
sequently how the lamp housing may be unlatched by de
an additional terminal 29 on its rear edge. The ter~
pressing it inwardly toward the front edge of the capsule
minals 23A of all the capsules in the stack are connected
and by subsequently releasing it;
together, as shown in FIGURE l. Likewise, all the termi
FIGURE 9 is a top plan view of a second embodiment
nals 28B are connected together, as are the terminals 28C,
of the invention in which the lamp housing is normally 55 28D and 28E.
caged with respect to its associated capsule, but which
The respective terminals 29, on the other hand, are
may be uncaged by turning it and its associated plug
connected to different sensing elements in the area being
member to a particular orientation; and
monitored by the unit.
FIGURE l0 is a view substantially on the line lil-_l0
As illustrated, for example, in FIGURES 3 and 4, each
of FIGURE 9, the latter view showing the mating con 60 capsule 10 includes a pair of electric lamp receptacles 24
figuration between a stop member on the plug member in
mounted on its leading edge. The receptacles l2d» may be
FIGURE 9 and an aperture in a support member in FIGof any known physical construction, and they serve to
URE 9 to permit the stop member to be drawn through
receive a corresponding pair of electric lamp sockets 25.
the aperture in the plug member when the plug member
The lamp sockets 25 are mounted on the movable mem
has a particular orientation.
As stated previously and as described in the above
mentioned Patent 2,934,752, the control circuit and ele
ments for each pair of electrically energized lamps in
the system may be individually housed in a separate cap
sule, and the translucent annunciator member to be illumi
nated by the energizing of the particular pair of lamps
is supported on one edge of the capsule in a manner
to be described.
Such capsules are designated 10 in
FIGURE >1, a stack of similar `annunciator capsules being
illustratedin FIGURE 1.
`
65 ber 22 and protrude outwardly from the rear face of the
movable member in respective axial alignment with the
receptacles 24. The sockets 25 may also be of any known
physical construction and coniiguration, and they serve
to
support a corresponding pair of electric lamps 26 in
70
a position so that the lamps 26 extend into the translucent
member 22 to illuminate the front face of the movable
member and the inscriptions on that face.
It will be observed that the movable member 22 is
75 normally positioned, as shown in FIGURES l and 2, in
5
3,619,428
the opening in the panel 16 so that its front surface is
6
of the capsule 10 by a pair of nuts 45, and these nuts
tlush with the front surface of the panel 16. When
the movable member is in its normal position, the lamp
may also serve to mount the receptacles 24 on the lead
sockets 25 extend into respective ones of the receptacles
24 so that an electric energizing circuit may be completed
to the lamps 26. This circuit may be of the type de
scribed in Patent 2,934,752 referred to above, and it pro
vides for the energizing of the lamps 26 upon the happen
first resilient arm 46 which extends to one side of the
ing edge of the capsule. The resilient jack 44 includes a
plug 3i), and it includes a second resilient arm 48 which
extends to the other side of the plug. These resilient
arms are shaped so that Jwhen the movable member 22 is
moved inwardly from the position of FIGURE 4 »to the
ing of the condition monitored by the particular annunci
position of FIGURE 3, the resilient arms 46 and 48
ator capsule.
10 engage the shoulder portion 38 at diammetrically oppo
As best shown in FIGURE 4, an elongated plug mem
site positions to hold the movable member 22 in the
ber 30 is mounted on the movable member 22 and ex
position of FIGURE 3 and in a latched condition against
tends outwardly from the rear face of the movable mem
the bias force of the spring 36.
ber through an aperture in the leading edge of the capsule
10. The movable member 22 is fastened to the plug 30
by means of a hinge assembly 32. This hinge assembly
The extremity of the plug 30 may be provided with
a stop member 50 lwhich has a diameter greater than
the diameter of the aperture in `the guide 34. This stop
permits-the movable member 22 to be turned down when
member 50 serves to cage the movable member 2_2 with
in the _extended position shown -in FIGURE 4. This
respect tothe capsule 10. When the movable member
facilitates the removal and replacement of the lamps 26.
is moved to the position of FIGURE 4, the lamps 26
An upstanding- guide and support ' member 34 is 20 may bev replaced conveniently, as mentioned above.
fastened to the bottom of the capsule 10 in a position
However," _the _movable member cannot normally be re
spaced from and parallel to the leadingv edge of the
moved -trom its associated capsule 10, because of the
capsule. This guide member has an aperture extending
stop member 50. This stop member limits the forward
through it in axial alignment With-,the-aperture in the
travel of theplug 30. 'I‘his caging of the movable mem
leading edge of the capsule whichfreceives the plug 3,0. ,2.5 ber 22 with the capsule 10 is important because it elimi
This permits the end of the plug to extend through the
aperture in the guide member 34. The arrangement is
such that the movable member 22 may be conveniently
nates the likelihood of the movable member 22 being
associated with the Wrong capsule 10. Should that occur,
the inscriptions on the movable member 22 would serve
moved from the extended position of FIGURE 4 to
as an erroneous indication of the monitored condition.
»the normal position of FIGURE 3 inV a smooth and un 30
The manner in ‘which the latching mechanism of
impeded manner. As the movable member is so moved
FIGURES 3 and 4 operates when it is desired to release
between the two positions, the plug 30 moves in a guided
the movable member 22 is shown by the fragmentary
manner through the aligned apertures in the front edge
or" the capsule 1th and in the guide member 34. When
the movable member 22 is in the normal position of
FIGURE 3, the engagement of the sockets 25 in the
corresponding receptacles 24 holds the hinged movable
schematic diagrams of FIGURES 5-8.
The illustration of FIGURE 6 shows the movable
member 22 in its position as normally engaged by the
jack 46 and held in place on the leading edge of its
corresponding capsule 10. When it is desired to release
member 22 in a position such that its ‘front face is
the movable member, the member is depressed inwardly
parallel with the front of the panel 16.
towards the capsule 10 as shown in FIGURE 7. This
A coil spring 36 is mounted coaxially with the plug 40 causes the cylindrical member or collar'40 to be moved
member 30. This coil spring engages the rear face of
by the shoulder portion 42 into the jack 44 and spread
the movable member 22 and the front of the leading
the arms 46 and 48 vof the jack so as to disengage the
edge of the capsule It?. This spring serves to bias the
shoulder portions 38 ofthe plug from the jack. Then,
movable member 22 outwardly from the panel -16 when
when the movable member 22 is subsequently released,
it is released, as will be explained.
45 and as shown in FIGURE 8, the resilient spring 36 biases
The elongated plug member 30 has a ñrst shoulder
the movable member 22 outwardly from. the capsule 10
portion 3S formed in it which faces the movable mem
to withdraw the vshoulder portion 38 of the plug 30
ber 22. This shoulder portion is positioned intermedi
down into the cylindrical member 40. The movable
ate the ends of the plug 30. A cylindrical member 40
member 22 is now displaced outwardly from the plane
is slidably mounted on the plug 30 adjacent the shoulder 50 of the front surface of the panel 16 in a position such
portion 3S. This cylindrical member has an internal
that it may be moved outwardly to the position of
diameter having an upper portion which is greater than
FIGURE 5.
the outer diameter of the shoulder portion 30 and having
The cylindrical member 40 may be provided with a
an inner shoulder, and the cylindrical member has an
peripheral groove 49a near its forward extremity, and
outer diameter which is `less than the diameter of the 55 the arms 46 and 4S of the resilient jack 44 engage this
aperture in the leading edge of the capsule 10. This
groove with a slight retaining pressure when the cylin
permits the cylindrical member 40 to slide freely along
drical member is moved into the jack.
the plug member 3i) over the shoulder portion 38, and
As mentioned above, it is now possible to move the
it also permits the cylindrical member 40 to be drawn
displaced movable member 22 from the position shown
through the aperture in the leading edge of the capsule 60 in >FIGURE 8 to the position shown in FIGURE 5.
1b from the position shown in FIGURE 3 to the posi
When the movable member 22 is in the position of
tion shown in FIGURE 4 as the shoulder portion 38
FIGURE 5, and as noted above, it may be hinged down
engages the inner shoulder of the cylindrical member 40.
wardly to permit the convenient removal and replace
The plug member 3b has a second shoulder portion
ment of the lamps 26.
42 adjacent the end or" the cylindrical member 41) and 65 The embodiment of the invention shown in FIGURES
facing the shoulder portion 38. The shoulder portion
8 and 9 is generally similar to the embodiment of
42 has a diameter greater than the inner diameter of
FIGURES 3 and 4, and like elements have been identi
the cylindrical member 4%, and it serves to engage the
ñed by the same numerals. However, in the embodi
end of the cylindrical member 49 and force the cylin
ment of FIGURES 8` and 9, the stop member 50 has
drical member into the housing when the movable mem
70 been replaced by a stop member 60. The aperture
ber 22 is moved from the position of FIGURE 4 to
through `the guide member 34 in the latter embodiment
the position of FIGURE 3.
is designated 62, and this aperture has a configuration
A resilient jack 44 is mounted in the capsule 10 be
such that the stop member 60 may pass through it when
tween the guide member 34 and the leading edge of the
the plug 30 has a particular angular orientation with
capsule 10. This jack is supported on the leading edge 75 respect to the guide member 34. This latter embodi
aora-tee
r:
with the movable member Y22 being caged with respect
to its corresponding capsule 10 by means of Áthe stop
jack when the movable member is moved in the direc
tion of said end wall of the housing.
3. The combination defined in claim 2 `and which in
member Gt). However, under some circumstances it
may be desirable to remove the movable member 22
cludes a stop member mounted on the extremity of the
plug member remote from the movable member, to pre
completely. This `can be achieved by turning the mova
ble member until the plug 36 has a particular orientation
>with respect to the guide 34. This orientation is such
`that the stop member 60 may pass freely through the
through said second aperture so as to cage the movable
member on the housing.
the movable member 22 to be withdrawn completely
which includes a stop member mounted on the extremity
vfrom the capsule 1€).
of the plug member remote from the movable member,
said stop member having a particular conñguration with
meut permits the unit to function as described above
vent said extremity or" the plug member from being drawn
4. The combination defined in claim 2 and in which
aperture 62 to permit the plug 30 and the assembly of 10 said second `aperture has a particular conñguration, and
The invention provides, therefore, an improved yassem
bly of the annunciator type. The improved assembly of
respect to the particular conñguration of said second
movable lamp housing member. The lamp housing
from being drawn through said second aperture and there
the present invention includes a capsule 4and `an associable 15 aperture to prevent said extremity of the plug member
'member is supported in an improved manner to be guided
'along an Vestablished path between its latched condition
and its extended condition. The assembly is constructed
so that the movable Amember is securely latched to the 20
lamp housing when in its normal condition, and in which
the movable member Ymay be quickly and readily un
latched merely by depressing it inwardly and then re
leasing it. The'invention also> provides an improved
manner whereby the m'ovableymembe/r'is caged to its asso
ciated capsule for the described reasons.
by cage the movable member on the housing except when
said plug member is turned to a particular angular posi
tion in said support member.
5. An assembly ¿for use in an electrical indicating sys
tem including: a capsule for supporting electrical cir
cuitry and components `and having a plurality of Walls
including an end wall with a first aperture formed there
in, an opstanding support `and guide member positioned
in said capsule in spaced parallel relationship with said
end wall thereof and having a second aperture therein
in axial alignment with said first aperture, a translucent
lamp housing having inscriptions formed on a front face
thereof,- an elongated plug member having a ñrst shoul
30 der portionrfoïrmed therein intermediate the ends thereof
lar orientation.
and mounted on` said lamp housing and projecting there
from into 'said first yand second apertures to be slidable
p l. An »assembly for use in an electrical system includ
In the second embodiment of the invention, the mov
able member and its associated components may be re
moved from the capsule merely by turning it to a particu
therein and supported at spaced points by said front wall
and by said support and guide member, a resilient jack
-euitry and components having a plurality of walls in
mounted in the capsule between said support and guide
cluding Van end w-all with a first aperture formed therein,
member and said end wall of the capsule in a position
a support and guide member positioned in said housing
to engage the first shoulder portion of said plug member
in spaced relationship with said end wall thereof and
and thereby hold the lamp housing in a latched condi
having a second aperture in axial alignment with said
tion on the capsule, a cylindrical member slidably mount
first aperture, a movable member, an elongated plug
member having a shoulder portion formed therein and 40 ed on the plug adjacent said first shoulder portion thereof
and having an inner diameter greater than the outer diam
mounted on the movable member and projecting from the
eter of said first shoulder portion of the plug and hav
movable member into said first and second apertures to
ing: a capsule-like housing for supporting electrical cir
ing `an outer diameter less than the diameter of said
ñrst aperture, said plug member having a second shoul
silient jack mounted in said housing in alignment with 45 derV portion formed thereon adjacent an end of the cy
lindrical member to engage such end and force the cy
the iìrst and second apertures to engage the shoulder por
lindrical member into the jack so as to disengage the
tion of said plug member and thereby hold the movable
ñrst shoulder portion of the plug from the jack when the
member on the housing, and means mounted on said
lamp housing is moved in the direction of said end wall
plug member for releasing the shoulder portion thereof
from said resilient jack when the movable member is 50 of the capsule, and a coil spring supported on said plug
between said end wall of the capsule and the lamp hous
moved in the direction of said end Wall 4of the housing.
ing to retract the plug member from the jack when the
2. An assembly for use in an electrical system includ
first shoulder portion of the plug member is disengaged
ing: a capsule-like housing for supporting electrical cir
from the jack by said cylindrical member.
cuitry and components having a plurality of Walls in
6. The combination deñned in claim 5 and Which in
cluding an end Wall with a first aperture formed therein, 55
cludes hinge means yfor attaching said lamp housing to '
a support and guide member positioned in said housing
said plug member to permit said lamp housing -to be
in spaced relationship With said end Wall thereof and
turned -angularly with respect to the axis of said plug
having a second aperture therein in axial alignment With
member so as to facilitate the removal and insertion of
said first aperture, a movable member, an elongated plug
lamps in the lamp housing.
60
member having a first shoulder portion formed therein
7. An assembly for an electrical indicating system in
be Slidable therein and supported at spaced points by said
front wall and by said support `and guide member, a re
intermediate the ends thereof and mounted on the mov
cluding: a capsule for supporting electrical circuitry and
able member and projecting from the movable member
components having a plurality of Walls including an end
into said first and second apertures to be slidable there
Wall With a first `aperture formed therein, electric socket
in and supported at spaced points by said front Wall and 65 means mounted on the end wall and electric circuitry
by said support and guide member, a resilient jack
positioned in said capsule and connected to said socket
Amounted in the housing between said support member
means, an upstanding support and guide member posi
tioned in said capsule in spaced parallel relationship
and said end Wall of the housing in a position »to engage
with said end wall thereof and having a second `aperture
the ñrst shoulder portion of -said plug member and there
by hold the movable member on the housing, and a cy 70 therein in axial alignment with said first aperture, a trans
lucent lamp housing having inscriptions formed on a
lindrical member slidably supported on the- plug adja
front face thereof and incuding means for supporting at
cent said first shoulder portion thereof, and said plug
least one electric lamp therein, said supporting means
member having a second shoulder portion formed there
engaging said electric socket means when said lamp hous
in for forcing the cylindrical member into the jack to dis
ing is supported in a latched condition on said capsule,
enga'ge the first Ashoulder portion of the plug from the
in
3,019,428
9
10
an elongated plug member having a first shoulder por
first shoulder portion of the plug member is disengaged
from the jack by said cylindrical means.
tion `formed therein intermediate the ends thereof and
mounted on said lamp housing and projecting therefrom
into said ñrst and second apertures to be slidable therein
8. The combination defined in claim 7 and which in
cludes a stop member mounted on the extremity of the
and supported at spaced points by said front wall and by 5 plug member remote from said lamp housing to prevent
said extremity of the plug member from being drawn
said support «and guide member, a resilient jack mounted
through said `second aperture so as to cage said lamp
in the capsule between said guide member and said end
housing on said capsule.
wall of the capsule in a position to engage the ñrst shoul
9. The combination defined in claim 7 »and in which
der portion of said plug member and thereby hold the
lamp housing in a latched condition on the capsule, »a cy 10 said jack includes first rand second resilient `arms mounted
on said end wall of the capsule and extending into the
lindrical member slidably mounted on lthe plug `adjacent
capsule on opposite sides of the plug member and in in
said first shoulder portion thereof and having an inner
clined
relations-hip therewith, said resilient arms having
diameter greater than the outer diameter of said first
end portions adapted to engage the first shoulder portion
shoulder portion thereof and having an outer diameter
15 of the plug when said lamp housing is in said latched
less than the diameter of said first aperture, said plug
condition on the capsule.
member having a second shoulder portion formed there
of adjacent an end of the cylindrical member to engage
References Cited in the Iìle of this patent
said end of the cylindrical member and force the cylin
UNITED STATES PATENTS
drical member into the jack so as to disengage the first 20
shoulder portion of the plug from the jack when the
l-amp housing is moved in the direction of said end wall
of the capsule, and a coil spring supported on said plug
between the end wall of the capsule and the lamp hous
ing to retract the plug member from the jack when the 25
780,417
1,866,326
Euphrat ______________ __ Jan. 17, 1905
Stevens ______________ .__ July 5, 1932
2,959,774
Arrasmith __________ __ Nov. 8, 1960
132,667
Australia ____________ -_ June 2, 1949
FOREIGN PATENTS
Документ
Категория
Без категории
Просмотров
0
Размер файла
983 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа