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Патент USA US2406002

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Aug. 20, 1946.
' Filed Sept. 16 . 1944 ì
2 Sheets-Sheet 1
Aug. 29, 14.
» `
Filed sept. 1e, 1944
2 sheets-sheet 2
Patented Aug. 20, 1946
' 2,400,002
Gerald Deakin, New York, N. Y., assignor to In
ternational Standard Electric Corporation, New
’ York, N. Y., a corporation of Delaware
Application September 16, V1944, Serial No. 554,387
7 Claims. (Cl. 179-98)
Thisinvention relates to new and useful im
provements in selector terminal banks and, more
particularly, to an arrangement for connecting a
cable with the multiple bank of a selector,
According to the present invention, the indi
the return movement. These terminals are pro
vided in the form of lengths of wire, one of which
has been numbered II) in Fig. 2, extending from
one compartment into the opposite compartment.
The wires forming a row of forty-eight ter
vidual wires of a cable are attached to means
minals in all the six compartments are held in
the side bars of a frame II of plastic insulating
material. The Wires are freely accessible throughwipers. Thus, the necessity of providing soldered
the center opening of the frame where they are
connections between the cable and the selector -10 connected in multiple by means of transverse
terminal bank or a distributing frame is avoided.
wires indicated at I2. The latter are embedded
Said means are preferably in the form of jacks
in the end bars of the frame in a plane adjacent
which can be attached to the cable wires in the
that of the terminal wires I0. The wires I2 are
adapted detachably to be connected with selector
terminals normally cooperating with selector
factory and then simply pushed into yengagements
with the terminals of one of the selector units.
The characteristic features of the invention
will be described as applied to the automatic tele
phone selectors and banks of »the general type dis
closed in my co-pending applications, Serial No.
525,853, ñled March 10, 1944, and Serial No.
547,126, ñled July 29, 1944.
It will, however,
be obvious to those skilled in the art that the
invention is readily applicable to other kinds of
selector and bank structures.
In the drawings:
Fig. 1 is a plan view of a, selector assembly with
the end wall of one compartment removed;
Fig. 2 is a sectional' View along lines 2-2 of
Fig. 1, but on a smaller scale;
Fig. 3 is a side elevation of the selector assem
bly with parts of the side walls broken away;
Fig. 4 is a sectional view along lines 4_4 of
Fig. 3, but on a smaller scale; and
Fig. 5 is an enlarged sectional view of a cable
Six selectors are assembled in a unit and each
selector is mounted within an oblong compart
ment closed on five sides and open on one side.
Each compartment has a top closure I, side walls
at 2 and 3, and end walls at 4 and 5. The bot
tom of each compartment is open.
Each com
partment contains a set of wipers diagrammati
cally indicated at 6 and means for moving said
Wipers back and forth in a horizontal plane in
cooperation with terminals, the construction and
arrangement of which will be presently de
scribed. Operating means for the wipers is di
agrammatically indicated at 'I .
The terminals projecting through the bottom
of each compartment consist of two sets of four
wires as indicated by reference numerals 8 and 9
in Fig. 2. Each individual selector has banks of
terminals aligned with 8 and 9, the wiper co
operating with one set, e. g., 8, when moved in
one direction and with the other set 9 during
soldered, welded, or otherwise connected, only to
certain terminals I0 as indicated at I3.
wires I2 continue to the next selector assembly
where they are suitably multipled to the terminal
e ~
Each row of forty-eight terminals is held in a
separate frame Il, there being as many frames
stacked next to one another as necessary for a
set of six selectors. The frames are held in
position in the selector frame by means indi
cated at I4.
`According to the present invention, the con
nection of a cable I6 with ‘the multiple terminal
bank of a group of six selectors is effected by
removing the wipers 5 and operating gear -I from
one of the compartments, e. g., the one desig
nated bythe numeral I5, and running the cable
'IB into this compartment. The end wall I'I of
this compartment is somewhat dilferent from d
to accommodate the cable I6 in lieu of the op
erating means 1 of selector wipers. The opposite
end wall is I -I'. The cable is tied to a wooden
block I8 mounted on a platform I9 projecting
from the selector frame.
The individual wires of the cable are soldered
to tabs 2U of jacks 2I before the cable is put
in place. Eight such jacks arranged in two
groups of four, corresponding to, and aligned
with, the two groups of terminals 8 and 9, are
assembled into a unit by means of an insulating
sleeve 22. As many of these units are, of course,
provided as there are rows of terminals within
the selector compartment with which it is de
sired to connect the cable.
The ends of each jack are split into two tongs
23 and 24 (Fig. 5), the free ends of which flare
out, as indicated at 25 and 26. The wide mouth
formed between 25 and 26 may be readily placed
over ther end of terminal I0 and then the jack
pushed down on the terminal until it contacts
with the insulated frame II from which the ter
minal projects. The inside surfaces of the forked
ends 23 and 24 are so shaped 'as to tension the
terminal Il! by slightly curving it and, thus,
insure good contact and guard against accidental
removal of the jack.
It will be readily seen from the above that the
jack units may be soldered to the wires of the
cable I6 before the cable is put in place and the
cable connected with that portion of the multi.
pled bank which happens to be idle.
The cable may be connected with the multiple
bank at any point where no selector need be pro
vided without the necessity of soldering and un
soldering connections.
What I claim is:
l. In combination, a plurality of selectors, a
multiple bank of terminals for said selectors, a
set of wipers for each selector normally cooper
ating with said terminals, a cable, and means
of wipers, parallel second wires transverse to the
first wires and having free ends projecting into
cooperative relation with opposite wipers, con
nections between the ñrst and second wires, a
cable, and means for detachably connecting the
Wires of the cable with the second wires project
ing into engagement with any one of said selector
6. In a selector assembly, a selector frame di
vided into two groups of selector wipers opposite
Vone another, a plurality of frames of insulating
material mounted on the selector frame between
the two groups of Wipers, a plurality of parallel
iirst wires extending through each insulating
frame, parallel second wires transverse to the
ñrst wires of each frame and having free ends
projecting into cooperative relation with oppo
_site selector Wipers, connections within the space
surrounded by each insulating frame between
attached to wires of said cable removably con--V
nectible to the same portion of the terminal bank 20 each ñrst wire of the frame and one of the second
wires, a cable, a jack having contact points
with which normally wipers may cooperate.
adapted to engage the second wires projecting
2. In combination, a plurality of selectors, each
into cooperative relationship with any selector,
having a set of movable wipers, a bank of; ter
and a terminal for each contact connected with
minals for each selector unit with which its
wipers normally cooperate, multiple connections 25 a Wire of said cable.
7. In a selector assembly, a selector frame di
between the terminals of the banks,- a cable, and
vided into two groups of like compartments oppo
connectors attached to the wires of the cable
site one another, each compartment being en
adapted for detachable connection with the same
closed on three sides and open on the fourth side
portion of the terminals of any one of the banks
with which normally wipers‘rnay cooperate.
30 opposite the compartment of the other group,
a >movable set of wipers in each compartment, a
3. In combination, a plurality of selectors, a
multiple bank of terminals for each selector, each
plurality of oblong frames of insulating material
mounted in a pile upon the selector frame be
terminal being a resilient wire, a set of wipers
tween the two groups of compartments, a plu
for each selector normally cooperating with its
bank, a cable,- and jacks attached to the wires 35 rality of parallel ñrst wires extending between
the long sides oi each insulating frame and pro
of the cable, each jack cooperating with the same
jecting through the short sides thereof, parallel
portion of a terminal with which wipers may
second wires transverse to the ñrst wires and
cooperate, and so shaped to bend it when in en
having free ends projecting through the long
gagement therewith..
4. In combination, a plurality of selectors, a 40 sides of each insulating frame into opposite com
partments in cooperative relation with 'the‘set
plurality of rows of terminals for each selector,
of Wipers therein, connections within the space
multiple connections between the terminals of
surrounded by each insulating frame between
different selectors, a set of wipers for each selector
each first wire oi the frame and one of the second
normally cooperating with its terminals, a cable,
and jack assemblies connected with the wires of 45 wires of the same frame projecting into each
compartment, a cable projecting `through a wall
the cable, each assembly comprising a row of
of one of said compartments, a jack having con
jacks aligned, and cooperating with the same
tact points adapted to engage all the second Wires
portion of a row of terminals with which nor
projecting from a frame into a compartment,
mally wipers cooperate.
5. In a selector assembly, two groups of oppo 50 and a terminal for each contact connected with
a wire of said cable.
site movable selector Wipers, a plurality of par
allel first wires extending between said groups
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