close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3068558

код для вставки
Dec. 18, 1962
3,068,548
R. C. HERGENROTHER ETAL‘
METHOD FOR INSTALLING ELECTRODES
Filed 001;. 28, 1959
,\
mvsm‘ons
RUDOLF c. HERGENROTHER
ALVIN
s.
LUFTMAN
CARLETON ‘ E.
DANIEL
D.
SAWYER
DUGGAN
IBM/MM
ATTORNEY
United States Patent 0
3,068,548
M
1C€ ,
Patented Dec.‘ 18, 1962
1
2
3,068,548
rality of electrodes and then assemble the electrodes
forming a rigid structure before insertion into the bulb.
It is another teature to drill the alignment holes in each
METHGD FOR INSTALLING ELECTRODES
Rudolf C. Hergenrother, West Newton, Alvin S. Luftman,
Natick, Carleton E. Sawyer, Acton, and Daniel D.
Duggan, Watertown, Mass, assignors to Raytheon
Company, Lexington, Mass, a corporation of Delaware
Filed Oct. 28, 1959, Ser. No. 849,286
8 Claims. (Cl. 29—25.16)
of the electrodes and then to assemble the electrodes with
said alignment holes orientated in a predetermined man
ner and to locate said indexes on said jig in an identical‘
manner so that buttons aligned with said indexes will also
be aligned ‘with said alignment holes.
Other objects and features of the present invention will
This invention relates to methods for installing elec 10 be more apparent from the following speci?c description
taken in conjunction with the drawings in which:
trode structures in a bulb and, more particularly, to a
FIG. 1 is a pictorial view showing the jig inserted in
method of installation whereby electrodes are properly
the bulb and buttons aligned with index holes in said jig;
aligned with each other and with the bulb and are per
pendicular to the bulb axis. The invention is suitable, for
example, for installing the storage, collector and screen
grids in the one-gun storage tube described in US. Pat
ent 2,661,442 to I. A. Buckbee or the storage, decelerat
FIG. 2 depicts a button with an index pin through its
center;
,
1
FIG. 3 shows a plurality of electrodes such as em
ployed in ‘a typical storage tube;
FIG. 4 shows an assembly of said electrodes;
FIG. 5 is. an enlarged view of one end of said jig show
rother now Patent No. 2,922,071 ‘issued January 19, 1960, 20 ing the relative orientation of index holes; and
FIG. 6 shows the electrode assembly installed in said
or the screens in a two-gun storage tube such as described
bulb and supported by support pins which are welded to
in the January-February 1959 issue of Electronic Prog
ing and accelerating electrodes in the one-gun storage
tube described in application #517,830 of R. C. Hergen~
ress published by Raytbeon Company, Waltham, Massa
the buttons.
glass bulb at positions located externally from the bulb,
then, after aquadaging the bulb, inserting each electrode
separately and Welding each to conductive support pins
which are passed through the‘buttons. This prior method
has resulted in unsatisfactory orientation of the electrodes
relative to each other and improper centering of the elec
an elongated neck of constant diameter at one end and is
'
Turning ?rst to FIG. 1 there is shown what is substan
chusetts.
In the past such electrodes or screens have been in 25 tially the ?rst step in the assembly of an electrode struc
ture in a glass bulb. The glass bulb 1 is preferably of
stalled or mounted in a glass bulb by ?rst annealing small
the type employed for constructing storage tubes and has
metal buttons or “Valkert Stampings” to the walls of the
trodes on the bulb axis with the result that the axes of
the electrodes are not collimated with beams from elec
open at the other end. A jig 2 with padding rings 3 and
4 ‘attached to the cylindrical portion thereof is inserted
into the glass bulb. The cylindrical portion of the jig is
somewhat smaller than the inside diameter of the bulb
neck, but ?ts snugly therein and is spaced from the bulb
neck by rings 3 and 4.
The neck end of the bulb butts against a plate 5 to
which the jig is attached and thereby establishes the longi
tron guns located ‘axially in the bulb and uniformity of
tudinal position of the jig relative to the glass bulb. This
production is less than desired. These unsatisfactory re
plate 5 is ?xed to the end of the jig 2 after the jig is in
sults are primarily attributed to the improper location of
serted in the glass bulb.
the buttons and distortion of the electrodes vas they are
At the other end of the jig there are a numberof pro
individually and separately welded inside the bulb to the 40
tuberances which might, for example, extend from the
support pins. Furthermore, even when the buttons are
properly located it is di?icult to center each electrode on
jig in an axial manner as shown.
Index holes such as
7 and 8 are drilled at predetermined points‘on these pro
the bulb axis and to subsequently weld it in place. There—
fore, it is an object of the present invention to provide a 45 tuberances and directly axially with the bulb and the jig.
The location of these index holes will be‘ described later
method for installing electrodes in a bulb whereby cer
with reference to FIGS. 3, 4 and 5.
_'
tain unsatisfactory results or prior methods, mentioned
Next, metallic buttons such as 9 and 10 each having an
above, are avoided.
index pin through its center such as index pins Hand 12
It is another object to provide a method for installing
are inserted into holes 13 and 14 cut in glas's'lbulb 1 which
a plurality of electrodes in a bulb whereby proper orienta
are directly opposite index holes 7 ‘and 8, respectively.
tion of electrodes with respect to each other is insured.
The buttons 9 and 10 are inserted so that the index pins
It is another object to provide such a method whereby
?t into index holes 7 and 8, thereby securely supporting
said buttons are precisely ?xed to the bulb and properly
and aligning buttons 9 and 10 with the holes; Once
orientated electrodes are ?xed to saidbuttons producing
an ‘electrode structure in a bulb disposed perpendicular 55 aligned and supported in this manner, the buttons are
annealed to the surface of the glass bulb forming‘ a
to the ‘axis of said bulb.
It is a feature of the present invention to install a plu
rality of electrodes in aglass bulb ‘by ?rst inserting an
alignment jig into said bulb coaxial therewith, said jig
being indexed adjacent to said bulb, fastening buttons to
said bulb at said index points, removing said jig, insert
ing said electrodes into said bulb, inserting support pins
through said buttons and into suitable alignment holes or
depressions in said electrodes and welding said support
vacuum seal therewith.
'
'
Turning next to FIG. 3 there are shown three rin'g'elec
trodes which might, for example, be the screen 15, the
storage 16 and the collector 17 grids in storage tubes such
as described in the ?rst mentioned reference. Perpendicu
lar holes 18, 19 and 20 aredrilled in each of the elec-,
trodes as shown in FIG. 3 and are spaced identically in
each electrode. Any number of such holes may be
65 drilled, but for purposes of example only three such. are
It is another feature to drill alignmentholes in a‘plu
shown in each electrode. Radial alignment holes 21, 22
pins to said buttons.
'
i
-
3,068,548
'
‘
4
3
and 23 are ‘also drilled in each of the electrodes at dif
ferent points on each so that when the electrodes are
What is claimed is:
l. A method for mounting electrodes in a bulb com
stacked one upon another and the holes denoted 18, 19
land 20 in each of the electrodes are all in line, the align
ment holes 21, 22 and 23 will be disposed with respect
prising the steps of inserting an alignment jig into said
bulb, said jig being indexed at points adjacent to said bulb,
to each other in a predetermined manner. For example,
said index points, removing said jig, inserting said elec
trodes into said bulb, inserting support pins through said
fastening support members to the surface of said bulb at
these alignment holes might be disposed at 120 radial
degrees from ‘each other.
support members and into suitable depressions in said
The rings shown inVFIG. 3 are assembled as shown in
electrodes and fastening said support pins to said support
FIG. 4. They are spaced from each other by ceramic 10 members.
>
spacers such as spacers 24 and 25 and fastened together
2. A method for mounting electrodes in a bulb compris
pins 26, 27 and .28 inserted through the holes 18, 19
and 20, respectively. Pins 26, 27 and 28 are preferably
sheathed in a ceramic material to prevent short circuiting
ing the steps of inserting an alignment jig into said bulb,
said jig being indexed at points adjacent to said bulb,
the electrodes to each other. Only two of the alignment 7
index points, removing said jig, inserting said electrodes
into said bulb, inserting support pins through holes in said
fastening metallic discs to the surface of said bulb at said
holes 21, 22 and 23, shown in FIG. 3, are shown in
FIG. 4.
.
discs and into suitable depressions in said electrodes and"
It should be noted that the alignment holes are drilled
fastening said pins to said discs.
radially with respect to the electrodes on lines perpen~
3. A method for mounting electrodes in a glass bulb
dicular to the axis of the electrodes. Consequently, upon 20 comprising the steps of inserting an alignment jig into
assembly in the manner described above, the alignment
said bulb, said jig being indexed at points adjacent to said
holes will be displaced radially as Well as axially with
bulb, cutting holes in the surface of said bulb opposite
respect to each other, the radial displacement being 120
said indexes, inserting metallic discs in said holes oppo
degrees apart and the axial displacement as represented
site said index points, annealing said discs to the surface
by dimensions AB and BC in FIG. 4. The dimension
of said glass bulb, removing said jig, inserting said elec
1AB is the axial displacement of alignment hole 23 from
trode into said bulb, inserting support pins through said
alignment hole ‘22 and the dimension BC is the axial dis
metallic discs and into suitable depressions in said elec
placement of the hole 21 from the hole 22. These di
trodes and fastening said support pins to said discs.
mensions also determine the orientation of the index holes,
4. A method for mounting electrodes in a glass bulb
such as 7 and 8, which are drilled in the protuberances, on 30 comprising steps of inserting an alignment jig into said
jig 2 as shown in ‘FIG. 5. Index holes 7 and 8 might, for
bulb, said jig having radial index holes at points adjacent
example, match holes 22 and 23 in the storage and col
to said bulb, cutting holes in said glass bulb opposite said
lector electrodes and are, consequently, located axially
index holes,rfastening metallic‘buttons to said glass bulb
at locations axial with said index holes, removing said
29 and 30 shown in FIG. 5, while alignment hole 21 in 35 jig, inserting said electrodes into said bulb, inserting sup
the screen electrode is located on centerline 31 in an op
port pins through said buttons and into suitable depres
posite protuberance.
,
sions in said electrodes and welding said support pins to
with respect to each other on circumferential center lines
When the buttons are annealed to the glass tube 1 their
index pins, such as pins 11 and 12, are removed. Next
the base plate 5 is removed from jig’ 2 and the jig is re
moved from the bulb leaving the bulb with buttons pre
said buttons.
5. A method for mounting electrodes in a bulb com
' prising the steps of inserting an alignment jig into said
bulb, said jig being coaxial with said bulb and indexed
at radial points adjacent to said bulb, fastening support
discs to said bulb opposite said index points, removing
said jig, inserting said electrodes into said bulb, inserting
support pins through said discs and into suitable depres
sions in said eletcrodes and fastening said support pins
cisely located and annealed in its surface forming air-tight
seals therewith.
7
: Next, the assembly of electrodes, shown in FIG. 4, is
' , inserted in the large end of bulb 1 substantially coaxial
with the bulb and support pins of the same diameter as
the pins and machined at one end to ?t into the alignment
holes are inserted in each of the buttons and into the
to said discs,
alignment holes \21, 22 and 23 thereby supporting the
electrodes and providing electrical leads thereto.
In this‘ manner the electrode assembly is?precisely
prising the steps of inserting an alignment jig into said
bulb, said jig being coaxial with said bulb and indexed
at points adjacent thereto, fastening support members to
said bulb, opposite said index points,_said support mem
bers having-index pins through their centers to insure
that each of said members'is aligned with an index point
m or
before fastening, removing said index pins, removing said‘
orientated and supported inside the glass bulb 1 so that
the electrodes are properly spaced from each other and
collimated with an electron gun which may be axially
disposed in the'nech of the bulb. In FIG. 6 there is
shown a view of the electrode assembly installed and sup
ported in this manner by support pins 32, 33 and :34
which ?ts snugly into alignment holes 22,’ 23 and 21.
jig, inserting said electrodes into said, bulbs, inserting
support pins through the centers of said support mem
bers and into suitable depressions in said electrodes and
I ‘The support pins are then externally welded to the but
60
tons thereby adding rigidity to the installation and sealing
the support pins and, subsequently, the external part of
these support pins are cut o? leavingonly a suitable part'
for attaching to electrical leads. V
A
fastening said support pins to said support members.
7. A method for mounting a plurality of electrodes
in a‘ glass bulb comprising the steps of inserting an
alignment jig into said bulb, said jig being coaxial with
saidbulb and indexed at points adjacent to the inside
surfacerof said bulb, annealing metal buttons tothe sur
face of said glass bulb opposite said index points,’ each of
said buttons having an index pin through its center for
aligning said button with one of said indexpoints, re
.
While there-is described above a method for installing
an electrode ‘structure in a glass bulb so as to obtain
proper spacing of electrodes and collimation with the
7 sunset the bulb, his. to be understood that a di?erently
shaped jig could be employed
'
6. A method for mounting electrodes in a bulb com
the process of installing
moving said index pins from said buttons, removing said
‘a di?erent structure of electrodes in a glass bulb for
jig from said glass bulb, inserting said electrodes into said
aligning buttons before annealingto the glass bulb so as
to insure that the buttons are aligned properlyrfor sup
glass .bulb, inserting electrically-conductive support pins
" through said buttons and into suitable ‘depressions in
porting: the structure, without. deviating from the spirit
said electrodes and welding said support pins to’ said
or! scope of the invention as set forth in thefaccompany
:ing
claims.
7
s
,
-
I
r
-
'
_ buttons.
j
75
78.,
method for mounting a plurality of electrodes in
8,068,548
5
6
a glass bulb compiising the steps of assembling sai elec
one of said index holes, removing said index pins, in
serting said electrode assembly into said bulb, inserting
support pins through holes in said buttons and into said
trodes, drilling alignment holes in said electrodes, said
assembled electrodes forming a rigid structure with a
alignment holes in said electrodes and welding said sup
predetermined orientation of said alignment holes, in
serting an alignment jig into said bulb, said jig being 5 port pins to said buttons.
coaxial with said bulb and having index holes drilling
References
in the file of this patent
therein disposed with respect to each other in substantial
ly the same manner as said alignment holes are disposed
in said electrode structure, annealing metal buttons to
UNITED STATES PATENTS
said glass bulb, each of said buttons having an index pi: 10
2,734,141
through its center for aligning said button with a different
2,876,376
Hughes ______________ __ Feb. 7, 1956
Rienks _______________ __ Mar. 3, 1959
Документ
Категория
Без категории
Просмотров
0
Размер файла
457 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа