close

Вход

Забыли?

вход по аккаунту

?

код для вставки
Jim- 14, 1947.
J. B. RETALLACK
2,414,123
HYDROPHONE SELECTING SYS TEM
Filed Nov. s, 1943
2 Sheets-Sheet 1
in
FIG3
FIG.
/
~
5-
@lvlili'r I;
"\AQ
§ 6“
.
5g
% % 1 l l N 1
pgagagp a) N) g)
‘
a.”
a
g
‘r
I
‘
'AVAVAJ
5)
+ g
§
lNVENTOR
By .ji éETALAAC/f
ATTORNEY
Jan. 14, 1947.
J. B. RETALLACK
2,414,123
HYDROPHONE SELECTING SYSTEM
Filed Nov. 8, 1945
2 Sheets-Sheet 2
wt
w
INVENTOR
J B. RETALLACK
BY jvlm?c‘awlj
A TTORNEY
Patented Jan. 14, 1947
2,414,123
UNITED STATES PATENT OFFICE
2,414,123
'
ROPHONE SELECTING SYSTEM
John B. Retallack, New York, N. Y., assignor to
Bell Telephone Laboratories, Incorporated,
New York, N. Y., a corporation of New York
Application November 8, 1943, Serial No. 509,449
4 Claims. (01. 177-353)
1
_
.
This invention relates to hydrophone selecting
systems. More particularly, this invention is a
hydrophone selecting system in which selection is
effected by discriminating between both the po
larities and magnitudes of electromotive forces
2
of key 2| are closed, a circuit may be traced from
ground through negative battery 32, lamp 33, re
sistance 20, contacts of key 2|, winding I6 of the
secondary of transformer I3, conductor Illa, coil
40 of inductance 9|], windings of relays 42, 43,
44, 45 in series and recti?er 46 to ground I2. The
impressed on conductors connecting a signaling
station and a plurality of hydrophones.
recti?er 46 is a, copper-oxide recti?er or the like.
In the system herein a number of hydrophones,
It is poled so as to o?er negligible resistance to
not exceeding nine, are spaced along a two-con
the ?ow of current from negative battery 32. It
ductor submarine cable. Any one of eight of the 10 is particularly pointed out that the Voltage of
nine hydrophone stations may be selectively con
negative battery 32 is reduced by the effect of
nected to a signaling station through the two
resistance 20 connected in series in this circuit.
conductor cable by impressing battery of a par
The resultant voltage impressed on the windings
ticular polarity and voltage of a particular one
of relays 42 to 45 is such that relays 42 and 43 do
of two magnitudes on a particular one of the two 15 not operate. The magnitude of the voltage is
conductors. The ninth hydrophone station is
su?'icient, however, to operate relays 44 and 45.
normally connected to the signaling station when
Although other selecting paths are connected to
no battery or voltage conditions are impressed
conductor Illa in parallel with the path through
on the conductors and is disconnected when bat
the windnigs of relays 42 to 45, no one of the other
tery of either polarity and voltage of either mag 20 paths is effective to establish a selection at this
nitude is impressed on the conductors.
time for reasons which will be made apparent
The invention may be understood from the fol
below.
lowing description when read with reference to
A circuit may now be traced from the bottom
the associated drawings in which:
terminal of winding I6 through conductor Illa,
Fig. 1 shows the left-hand portion of the cir 25 contact 48, contact 49, hydrophone I, contact 50,
cuit of the invention;
contact 41 and conductor Illb to the top terminal
Fig. 2 shows the right-hand portion of the cir
of winding I5 of the secondary of transformer
cuit of the invention; and
I3. Hydrophone I is thus connected to signaling
Fig. 3 shows an alternative embodiment of the
station I4.
selecting mechanism at a hydrophone station.
When the contacts of key 22 are closed, a cir
Refer to Figs. 1 and 2. The conductors ex 30 cuit may be traced from ground through nega
tending to the right-hand margin of Fig. 1 con
tive battery 32, lamp 33, contacts of key 22, wind
nect to the conductors extending to the left-hand
ing I6, conductor I 6a, coil 5| of inductance 94,
margin of Fig. 2 in corresponding positions.
windings of relays 52 and 53 in series, resistance
In Figs. 1 and 2, nine hydrophone stations num
54 and recti?er 55 to ground I2. It is pointed
bered l to 9 are spaced along a two-conductor 35 out that resistance 20 is not connected in this
submarine cable It, which is enclosed in an im
circuit and that the magnitude of resistance 54
pervious sheath I I, which is grounded at I2. The
is relatively small. The recti?er 55 is poled so
two-conductor cable is connected through a trans
as to pass current from negative battery 32. Re
former I3 to a signaling station I4. The sec
lays 52 and 53 are operated. A circuit may then
ondary of the transformers comprises two wind 40 be traced from the bottom‘terminal of winding
ings I5 and I6, the inner terminals of which are
I6 through conductor Illa, contact 51, hydrophone
connected through a condenser IT. The inner
2, contact 58 and conductor Illb to the top termi
terminals of windings I5 and I6 are connected
nal of Winding I5. Hydrophone 2 is connected to
also to a selecting station I8. At the selecting
the signaling station. Attention is called to the
station there are eight keys 2! to 2B. The indi 45 fact that the polarities of recti?ers 46 and 55
vidual operation of keys 2| to 28 effects the in
are the same so that when key 22 is pressed, a
dividual selection of the eight hydrophone sta
path is also established through the windings of
tions I to 8 by impressing either full or reduced
relays 42 to 45. Since resistance 20 is removed
positive battery 30 or full or reduced negative
from the circuit the magnitude of the voltage im
battery 32 on the individual selecting apparatus 50 pressed across the relay windings is such that all
sealed in the submarine cable at each hydrophone
of relays 42 to 45 operate. Contacts 41 and 48
station.
are open and hydrophone I is disconnected from
The manner in which the system per Figs. 1
the line.
and 2 functions will now be described in detail.
When the contacts of key 23 are closed, a circuit
Refer now to Figs. 1 and 2. When the contacts 5.5 may be traced from ground through positive bat
2,414,123
tery 30, lamp 3|, resistance I9, contacts of key
23, coil I6, conductor Ilia, coil 60 of inductance
98, windings of relays 62, 63, 64, 65 in series and
recti?er 66 to ground I2. The recti?er 66 is con
nected into this path in such manner that it pre
sents a low resistance to current from positive
4
battery 30, lamp 3|, resistance I9, contacts of
key 21, winding I5, conductor I?b, coil IQ!) of
inductance I25, winding of relays I22, I23, I24,
I25 and recti?er I26 to ground I2. Recti?er I26
is connected into the selecting path in such man
ner as to present a low resistance to current
from positive battery 39. It is pointed out that
battery 39. It is pointed out that resistance I9
resistance I9 is connected in series with the wind
is connected in series in the path extending
ings of relays I22 to I25. The magnitude of the
through the windings 62 to 65. The magnitude
of the potential of battery 30 is thus reduced. 10 voltage impressed across the windings of relays
The potential impressed on the relay windings
I22 to I25 is such that relays I24 and I25 operate.
Relays I22 and I 23 remain released. A circuit
62 to 65 is such that relays 64 and 65 operate.
may then be traced from the bottom terminal
Relays 62 and 63 remain in the released condi
tion. A circuit may then be traced from the bot
of winding I8, conductor Illa, contact I29, con
tom terminal of winding I6, conductor Illa, con
tact 69, contact ‘Ill, hydrophone 3, contact 68,
15 tact I 38, hydrophone ‘I, contact I28, contact I21
and conductor I?b to the top terminal of winding
contact 61 and conductor I01) to the top terminal
i5. Hydrophone l‘ is thus connected to signaling
of winding I5 connecting hydrophone 3 to se
station I4.
lecting station I4.
When the contacts of key 28 are closed, a cir
When the contacts of key 24 are closed, a cir~ 20 cuit may be traced from ground through posi
cuit may be traced from ground through positive
tive battery 30, lamp 3|, contacts of key 28, wind
battery 30, lamp 3I, contacts of key 24, winding
16, conductor Iila, coil 80 of inductance I92,
windings of relays 82 and 83 in series, resistance
ing I5, conductor Ilib, coil I40 of inductance E95,
windings of relays I42 and I23, resistance I54,
and recti?er M5 to ground I2. The polarity oi
24 and recti?er 85 to ground l2. Recti?er 85 is
poled so as to present a low resistance to current
from positive battery 35. Attention is called to
the fact that resistance i9 is not connected in
recti?er I45 is such that. it o?ers a low resistance
A circuit may then be traced from the bottom
from the bottom terminal of winding l6, con
terminal of winding I5, conductor Iila, contact
8?, hydrophone 13, contact 86 and conductor It?)
to the top terminal of winding I5. Hydrophone
4 is thus connected to signaling station I4.
ductor I (la, contact I41, hydrophone 8, contact
to current from positive battery 30. The magni
tude of resistance I4‘; is small. It is pointed out
that resistance I9 is not connected in the path
the selecting path extending through the wind
through the windings of relays I42 and i433. Sub
ings of relays 82 and 83. The magnitude of re 30 stantially the full potential of battery 35 is im
sistance M is small. Substantially full potential
pressed across the windings of relays I42 and
of battery 30 is impressed across the windings
I43 which operate to connect hydrophone 8 to
of relays 82 and 83. Relays 82 and 83 operate.
signaling station I4. A circuit may be traced
When the contacts of key 25 are closed, a cir
cuit may be traced from ground through negative
battery 32, lamp 33, resistance 20, contacts of
I46 and conductor It?) to the top terminal of
winding 515.
When no potential of either polarity and of
either magnitude is impressed on either one of
conductors Ella and Ilib, hydrophone 9 is con
nected to signaling station Eli. A circuit may be
traced from the bottom terminal of winding 56
key 25, upper winding I5 of the secondary of
transformer I3, conductor Iilb, coil I62 of induct
through
hydrophone
conductor
9, contact
Hm, I51,
contact
contact
258‘, I55
contact
and con
ance I63, windings of relays I55, I55, I67, I68 and
recti?er I69 to ground I2. The recti?er I55 is _, ductor IBZ) to the top terminal of winding i5.
poled so as to offer a low resistance to current
When potential of either polarity and either
from negative battery 32. The full voltage of bat
magnitude is impressed on conductor I?a, a cir
tery 32 is reduced by the effect of the resistance
cuit extends through coil lQl of inductance Hi8
20 which is interposed in the series circuit. Re
and the windings of relays I53 and £54 to ground
lays I55 and IE5 remain in the released condition 50 I2 operating relays i513 and I54. This discon
and relays i5‘! and IE8 operate. A circuit may
nects hydrophone 9 from signaling station H.
then be traced from the bottom terminal of wind
When battery of either polarity and either mag
ing is through conductor IIJa, contact H2, con
nitude is impressed 0n conductor l-Lb, a circuit
tact I173, hydrophone 5, contact I‘II, contact I?!)
extends through coil I55 of inductance W8 and
and conductor It?) to the top terminal of winding
the windings of relays 552 and I55 to ground t2
l5. Hydrophone 5 is connected to signaling sta
operating relays I52 and I55. Contacts I55 and
tion [4.
I59 are opened, disconnecting hydrophone 9 from
When the contacts of key 26 are closed, a cir
signaling station I4.
cuit may be traced from ground through negative
From the above, it should be apparent that
battery 32, lamp 33, contacts of key 25, winding
the invention herein is a system wherein any one
15, conductor IDb, coil IBl) of inductance H5,
windings of relays H2 and H3, resistance iii
and recti?er H5 to ground I2. Recti?er H5 is
of nine hydrophone stations may‘ be selected for
connected into the circuit in such manner as to
o?fer a low resistance to current from negative
battery 32. The magnitude of resistance IM- is
low. Substantially the full voltage of battery
32 is impressed across the windings of relays H2
and H3 to close the circuit to hydrophone 6.
This circuit may be traced from the bottom ter
minal of winding I6 through conductor ma, con—
tact H'I, hydrophone 6, contact IIS and- con
ductor IGb to the top terminal of winding I5.
When the contacts of key 2? are closed, a cir~
connection to a signaling station over a two-con
ductor cable. One of the nine stations is nor
mally connected to the cable and is disconnected
65 automatically when any of the other eight sta
tions is selected. Four of
are selected by impressing
battery on one of the two
remaining four of the eight
these eight stations
positive or negative
conductors and the
stations are selected
70 by connecting positive or negative battery to the
other of the two conductors.
Of the four sta
tions selected by impressing positive or negative
battery on a particular conductor, two are selected
by impressing positive battery on the hydrophone
cuit may be traced from ground through positive 75 selecting mechanism and the remaining two are
2,414,123
5 .
selected by impressing negative battery on the
selecting mechanism. Of each of the two sta
tions in each group of four selected by positive
battery, one is selected by positive battery of high
of said eight hydrophones to both of said two
conductors.
2. A system in accordance with the preceding
claim including a ninth hydrophone having an
potential and the other by positive battery of
individual selecting mechanism, means for con
low potential. Of the two stations in each group
necting said ninth hydrophone e?ectively to said
of four selected by negative battery impressed on
conductors when none of said eight hydrophones
a particular conductor, one is selected by nega
is e?ectively connected to said conductors and
tive battery of high potential and the other by
means for effectively disconnecting said ninth
negative battery of low potential.
10 hydrophone from said conductors when any of
Refer now to Fig. 3. Fig. 3 shows an alterna
tive selecting arrangement for a hydrophone at
a particular selecting point. Electrically, it cor
responds to the‘arrangement shown for selecting
station I in Fig. 1. Instead of ordinary relays,
however, in Fig. 3 each individual pair of relay
contacts is enclosed in an individual seal such as
said eight hydrophones is effectively connected
to said conductors.
3. In a submarine cable hydrophone selecting
system, a cable having a ?rst and a second con
ductor enclosed in a grounded impervious sheath,
eight hydro-phones distributed along said cable,
a ?rst four selecting circuits each having the
winding of a high potential responsive relay and
an envelope of glass or the like. Relays having
such contact protective arrangements are well
a recti?er in series, each of said circuits connected
known in the art. The employment of relays 20 individually between said conductors and said
having contacts enclosed in separate impervious
envelopes, in addition to the impervious sheath
sheath, two of said ?rst four circuits connected
effectively to each of said conductors, a second
which encloses the cable conductors. and the
four selecting circuits each having the winding
selecting mechanism, provides additional protec
of a high potential responsive relay, the winding
tion against failure due to moisture and ?ne silt, 25 of a low potential responsive relay and a recti?er
etc.
in series, each of said second four circuits con
What is claimed is:
nected individually between said conductors and
1. In combination in a hydrophone selecting
said sheath, two of said second four circuits con
system, a submarine cable having a grounded im
nected effectively to each of said conductors,
pervious sheath, two conductors only in said cable, 30 sources of positive and negative high and low
eight hydrophones spaced individually along said
potential, a ?rst four control means for impress
ing said potentials selectively on said ?rst con
ductor, a second four control means for impress
connected to a ?rst one of said conductors, four
ing said potentials selectively on said second con
individual selecting mechanisms for a second four 35 ductor, means comprising the poling of said rec
cable, four individual selecting mechanisms for
a ?rst four of said eight hydrophones effectively
of said eight hydrophones effectively connected
ti?ers, responsive to the actuation of any par
to a second one of said conductors, a high voltage
ticular one of said control means for actuating
a corresponding one of said selecting circuits,
and means responsive to the actuating of said
enabling relay and a low voltage disabling relay
in a ?rst two of each of said four mechanisms,
a high voltage enabling relay in a second two of 40 selecting circuit for connecting a corresponding
each of said four mechanisms, a single recti?er
one of said hydrophones between said ?rst and
in each of said eight mechanisms and an in
said second conductors.
dividual circuit for each of said mechanisms, said
4. A system in accordance with claim 3, a ninth
circuit extending from said grounded sheath
hydrophone, a ninth selecting circuit and means
through said recti?er and through an individual 45 in said ninth selecting circuit for connecting said
winding of all of the relays in an individual mech
ninth hydrophone between said ?rst and said
anism all in series, responsive to voltage of one
second conductor when no potential is impressed
of two magnitudes and of a particular polarity
on either of said conductors.
impressed on one or another of said two con
ductors, to selectively connect any particular one 50
JOHN B. RETALLACK.
Документ
Категория
Без категории
Просмотров
0
Размер файла
531 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа