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PROJECTING 1mm R'ETRACTING MECHANISM FOR
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Filed Dec.- 18, 1943
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BY
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Patented Sept. ll), 194:6
2,407,24
STATES
ram“ OFFICE
2,407,240
PROJECTING AND RETRACTING MECH
ANISM FOR UNDERWATER SIGNAL
SOURCES
Charles C. Barber, Rockville Gentre, N. Y., as
signor to Bell Telephone Laboratories, Incor
porated, New York, N. Y ., a corporation of New
York
Application December 18, 1943, Serial No. 514,778
i
13 Claims.
((31. 116-27)
2
This invention relates to submarine sound
translating apparatus, and more particularly to
a mechanism for mounting the sound translating
pensate for irregularities in the size of the re
placement parts.
The present invention contemplates a mecha
nism arranged to project sound translating ap
apparatus on a ship’s keel such that the sound
translating apparatus may be projected from the
ship into the sea water for locating objects sub
merged therein and such that the sound trans
lating apparatus may be retracted from the sea
water into the ship.
Under~water sound systems used on ships are i
known for simultaneously indicating the direc
tion and distance of submerged objects such as
wrecks, ?oating mines, icebergs, submarines,
shore line, and the like. In addition, under
water telephone and telegraph systems are known
for communicating between ships via the sea
water as the transmitting medium. Such under
paratus into the sea water and to retract it
therefrom and capable of assembly into an oper
ative condition by means of parts adjustably
?tted together.
'
The main object of the invention is to provide
a mechanism for expeditiously lowering a ship’s
sound translating apparatus into the sea water,
and retracting it therefrom.
Another object is to provide a lowering and
raising mechanism embodying adjustable parts.
" A further object is to provide a raising and
lowering mechanism embodying compensation
for irregularities in the size of replacement parts.
water systems employscund translating appa
In a known type of under-water sound sys
tern for a ship having an opening in its keel and
including a sound translating device for pro
jection into the sea water and retraction there
ratus which may be automatically projected from
the ship into the sea water through a suitable
opening provided in the bottom of the ship when
the under-water sound system is arranged for
operation, and which may be automatically re
tracted from the sea water into the ship when
from through the keel opening, a housing hav
ing an opening at one end is secured to the
the under-water sound system is shut down. ->
This projection and retraction of the sound ap
paratus requires a mechanism which is capable
of expeditious operation so as to avoid undue
time delay, particularly in an emergency.
One type of mechanism used heretofore was
designed such that cooperating parts were ma
chined to ?t, after certain parts were welded
into position. As the mechanism was relatively
Cl
keel such that the housing opening aligns with
the keel opening. Positioned interiorly of the‘
housing for lowering and raising movements
therein is a support carrying the sound appa
ratus. A motor mounted on the top of the hous
ing is arranged to lower and raise the support
and thereby to project the sound apparatus into
the sea water, and to retract it therefrom.
In a speci?c embodiment, the invention pro
vides an adjustable arrangement for controlling
the position of the sound-apparatus support rela
large in sir-e, such machining required special
cutting devices together with highly skilled oper 35 tive to the interior of the housing during its
ators therefor. As tolerances were extremely
raising and lowering movements, and comprises
small, rejections were high unless a high degree
three individual rails mounted vertically in
of care was exercised by the operators. In the
event the mechanism became fouled for any
reason, such as exposure to an explosive dis
spaced relation on the interior surface of the
housing and adapted individually for adjustment
40 in forward, aft, port, starboard and rotary direc
charge, scraping a sandbar, striking a submerged
tions; three rollers mounted in spaced relation
log or the like, it was found di?lcult, and in some
on the sound apparatus support such that each
roller engages one rail and such that individual
cases impossible, to operate the mechanism there
roller’s are adapted for adjustment in directions
by causing the sc-und apparatus to remain in a
?xed position. To render the'mechanism oper 45 corresponding to those in which the rails are
adjustable. Thus, in effect, the rails and asso
ative after such fouling, it was necessary to send
ciated rollers constitute a three-point suspen
the ship to drydock. The present invention is
sion for the sound-apparatus support interiorly
concerned with a mechanism adapted for lower
of the housing such that the force of the engage- the sound translating apparatus of a ship’s
50 ment between each rail and associated roller
under-water sound system from the ship into
varies as the support is lowered from its upper
the sea water and retracting the sound trans
most
position to its lowermost position, and vice
lating apparatus therefrom into the ship, and
versa; such force being substantially a maximum
designed to obviate precision machining oper
ations, permit replacement of parts, and com
when the support attains its lowermost position
55 at which the sound apparatus is fully projected
2,407,240
3
into the sea water, and being substantially a
'
'
-
when the support attains its upper
_ igs. 9 and 16;
most position at which the sound apparatus is
Fig. 18 is a plan view taken along the lines
§3-——l8 of Fig. 17;
substantially entirely retracted from the sea
water.
Features of the invention are: (1) compensates
Fig. 19 is a plan view taken along the lines
1 -:c of Fig. 6 and showing the drive for actu
for dimensional variations of component parts;
g the mechanism for lowering and raising the
raft as shown in Fig. 16 ;
(2) obviates need for special machines for pre
cision milling of tracks in their relative locations
interiorly of the housing so as to accommodate
readily the associated rollers on the sound-appa
ratus support; (3) speeds up manufacturing as
precise milling open
are avoided; (4i) virtu
ally prevents junking due to violations of toler»
in dimensional variations; (5) avoids weld
ing of carbon steel to stainless steel; (6) allows
Fig. 23 is an enlarged fragmentary view of Fig.
, showing the assembly of the left-hand rail
r. a gether
"
merit therewith;
.
is a cross-sectional view taken along
the lines
‘acement of individual rails and rollers; (8)
and provides ?rm structure to withstand forces
exerted by the sea water acting on the dome en
with the roller in engagement therewith;
'21 is an enlarged fragmentary view of Fig.
showing the assembly of the upper of the two
."1ght-hand rails together with the roller in en
relatively greater welding tolerances; (7) permits
'
4
sh wing the arrangement for attaching of indi
vidual lifting tubes to the raft as illustrated in
r, v
closing the sound apparatus, when in its lower
most position, during the forward motion of the
of Fig. 8;
Fig. 23 is a partial elevational View taken along
the lines
in Fig. 8; and
Fig.
is a partial cross-sectional view taken
along the lines 2Q 2L3 in Fig. 19, showing the
s .epensi n and connection of the shaft carry
ing t- e sound device to its driving mechanism.
when in its lowermost position during the turn
In the following description the same refer
ing motion of the ship, all of which forces vary 20 ence numerals are employed to identify the same
\ ith the
of the ship.
elements appearing in the several ?gures of the
ship; as well as the forces acting on such dome,
The invention will be readily understood from
the following description talzen together with the
accompanying drawings
which:
Fig. l is a perspective view of a
showing
the location of its sound room, and the projection
of the sound translating apparatus into the se
vater substantially to its full extent;
Figs. 2 and 3 are cross-sectional views taken
along the line 2-2 of Fig. l and showing the as—
sembly of the raising and lowering mechanism for
the sound apparatus, and the sound apparatus
fully projected into the sea water and entirely
re racted therefrom, respectively;
Fig. Ll is a side elevauional view taken along the
line ét-d of Fig. 2;
Fig. 5 is a clan view taken along the line 5-5
of Fig. Zl and showing the streamline of the lower
portion of the dome;
Fig. 6 is an enlarged View of Fig. 4;
'7
an end view taken along the lines ‘E—“!
of Fig. 5;
Fig. 8 is a plan view of the raft shown in Figs.
6, ‘I’, 9 and 16, including the annular member
which serves as a sealing crown;
Fig. 9 is an enlarged view of a fragment of Fig.
showing the raft positioned substantially in its‘
1. yermost position;
drawings.
Referring to the drawings, the submarine sound
translating apparatus shown in Figs. 1, 2, 3 and
4 comprises a streamlined dome ill, Figs. 5, 6, 7
“d i) w'thin which is positioned a quartz-crystal
d translating device 5 1 attached to the lower
most end of a hollow vertical shaft 52. This
shaft is driven to rotate the sound apparatus and
reby to train it on objects submerged in sea
.vater in a manner that will be subsequently men
tion. 3.. The electrical conductors for connecting
the sound device with a suitable sound detecting
device, not shown, are embodied in electrical cable
extending through the interior of the shaft HE.
A
complete description of the dome and
sound translating device may be had by referring
to the copending application of A. C. Keller,
Serial rlo. 493,171 ?led July 2, 1943.
The submarine sound translating apparatus is
located
a compartment 9 located at the bottom
of and forward of the ship, Figs. 1, 2, 3 and 4.
Such location tends to minimize interference
from noise effects generated by the ship's pro
peller. When the sound translating apparatus is
fully projected to its working position, the lower
most surface of the dome is approximately 44
inches below the under surface of the ship’s keel,
Figs. 2, d and 6. When the sound translating af
H13‘. 19 is a partial elevational view taken along
the lines iil—l? of Fig. 8, and showing the annu
paratus is fully retracted to its non-working posi
lar sealing crown;
tion, the lowermost surface of the dome is sub
Fig. 11 is a plan View taken along the lines
stantially ?ush with the under face of the ship’s
ii-~l l of Fig. 6;
keel, Fig. 3.
,Fig. 12 is a partial cross- ectional view taken
Referring to Figs. 3, 9 and 16, the uppermost
along the lines 52-42 of Fig. 13 and shows the 60 portion of the dome carries a peripheral member
steady bracket mounted on the raft as shown
it and a gasket 55 whereby the dome is attached
in Figs. 6, 11 and 16;
to the under surface of a raft it by a plurality
Fig. 13 is a plan View of the steady bracket
of machine screws ll. The gasket E5 tends to
taken along lines ELL-l3 of Fig. 12;
render the interior of the dome substantially free
Fig. 1": is a, cross-sectional view of the housing Li from sea water. The raft is substantially stream
taken along lines iii-M of Fig. 15;
lined, and is provided with a roller [8 positioned
Fig. 1-5 is a plan view of the housing taken
at the left-hand or aft end of its horizontal axis,
along the lines !5—-l€i in
*3, with the raft and
and a pair of spaced rollers Iii, l9 disposed on an
associated parts removed;
axis which is normal to the right-hand or for
i6 is an enlarged cross-sectional view of
ward end of its horizontal axis. Also, on the hori
the upper portion of Fig. 6 showing the raft and
Zontal axis of the raft in proximity of its left
the mechanism for effecting the lowering and
hand end is formed an integral tubular member
raising thereof, including the raft positioned sub
20 provided with an internal thread, and on the
stantially in its uppermost position;
same axis at its extreme right-hand end is a
Fig. 3.7 is an enlarged cross-sectional view
2,407,240
5
.
similar integral tubular member 2! provided with
used for the left-hand locking member 41'
an internal thread.
above described.
'
In proximity of the right-hand end of the raft
but to the left of the transverse axis of the rollers
l9, I9 is positioned an integral annular member
26, Figs. 8 and 10, which is opened at its upper—
.
As the steady bracket is now positioned in
the annular member 26 as previously pointed out,
it is understood that the steady bracket may be
firmly locked therein by individually actuating
both locking toes 48 and’ 56 to their respective
locking positions in the manner hereinbefore
mentioned. This means that both locking toes
two pairs of oppositely disposed projections 21, 2'5 10 4B and 56 are disposed in the openings 38 and
formed integral with the raft for partially en
Si, Fig. 10, and occupy the positions indicated by
abling the attachment of the dome to the under
the dot-dash lines in Fig. 13.
surface of the raft as previously mentioned. In
As shown in Fig. 11, a housing 6t substantially
tegral with the inner surface of the annular mem
encloses the raft and streamlined dome attached
most end and which serves as a sealing crown in
a manner that will be hereinafter pointed out.
At the lowermost end of this annular member are
ber 26 are two pairs of spaced projections 28, 23 15 to the under surface thereof when the latter, in
and 29, 29 which are oppositely disposed along
cluding the sound device, is fully retracted to its
the horizontal axis of the raft, Figs. 8 and 10. In
non-working position as indicated in Figs. 3 and
termediate each of these pairs of projections are
16; and serves to guide the raft as it is actuated
the respective openings 30 and 3 I. The functions
to move the sound device and dome from the non
of these projections and openings will now be de
working position to the working position as repre
scribed.
sented in Figs. 2 and 6, and vice versa. Referring
Positioned interiorly of the annular member
to Figs. 6, 14 and 15, the housing 6G embodies an
25, Figs. 9, 11 and 16, is a steady bracket 32, Figs.
upper peripheral flange 65 which is attached to
12 and 13, which is rigidly fastened to the raft
a cover 66 by a plurality of suitable bolts 61.
in a manner that will be presently pointed out.
Immediately below the horizontal center of the
Referring to both latter ?gures, the steady bracket
housing Ed is a further peripheral ?ange 68 which
comprises an elongated tubular member 34 at the
is suitably secured to the ship’s structure 39 in
opposite ends of which are disposed integral me
the sound room shown in Figs. 2, 3, 4 and 6. A
tallic bearings 35 and 36 whose functions will be
gasket ‘E0 is interposed between the flange 68 and
subsequently identified. Extending on diametri 30 the ship’s structure so that the sound compart
cally opposite portions of the tubular member 3A
ment is rendered substantially water-tight with
and integral therewith is a pair of transverse ex
reference to the sea water.
-
tensions 35a of which the ends are individually
provided with an opening 36a. Located in the
A lifting tube '1! is positioned in the tubular
member 2!} of the raft, and a lifting tube 12 in
opening 3€5a on the end of the left-hand extension 0 the tubular member 2|, Figs. 8, 9, 11 and 16. The
35a is a bushing 3'! which has positioned therebe
lower end of each of these tubes is rigidly secured
low in alignment therewith a further bushing 39.
to the raft as shown in Figs. 17 and 18. Referring
Disposed on the bushing 39 adjacent the under
to both latter ?gures, an annular plug 113a com
surface of the raft is the upper surface of an
prises a portion 14a inserted internally of the
acoustic pad 48 whose lower surface engages the to lower end of each lifting tube and a shoulder
upper surface of a retaining plate 4i .
portion 15a disposed in the particular tubular
Positioned in each vertically aligned pair of
member 26 or 2! of the raft. A transverse pin
bushings 3“! and 39 is an axle portion 35 of elon
18a and a plurality of welded ?llets 16b serve to
gated locking member 56 whose integral upper
secure ?rmly the engagement between the plug
most end comprises a tapered rectangular por 45 portion ‘HE-a and the lifting tube. A threaded
tion Ill and a toe 43. Disposed in sequence on
bushing 71a is positioned in the tubular member
the lowermost end of the axle portion 45 is a
of the raft so that the lowermost portion of this
Washer 49 engaging the retaining plate 4 I, a coiled
bushing engages the upper surface of the shoulder
spring 50, a, further washer 5!, a nut 52 and a
15a on the plug 13a. A pair of key pins l'lc
cotter pin 53. A plurality of screws 33 aid in
further securing the acoustic pad to the under
surface of the raft. Located on diametrically
opposite sides of the locking member 56 are a pair
of stop pins 54 and 55. From the structure just
described it is clear that the locking member 43
may be rotated in a clockwise direction by placing
a suitable wrench, not shown, onto the rectangu
lar portion 6'! and actuating the wrench in the
clockwise direction, Fig. 13. This serves to- rotate
the locking toe £8 until it engages the stop pin 54.
Now, the locking toe is disposed in its locking
position, as indicated by the‘ dot-dash line. A
counter-clockwise actuation of the wrench will
cause a corresponding rotation of this locking toe
until it engages the stop pin 55. Now, the lock
ing tee is disposed in the non-locking position as
shown by the unbroken line. Locking toe 55 on
the right-hand locking member 57 is actuated
between locking pins 58 ad 53 for disposal in the
non-locking and locking positions which are indi
cated by the broken and dot-dash lines, respec
tively, in Fig. 13. It is understood that the right
hand locking member El is mounted in the right
hand extension 35a in a manner similar to that
integral with the individual tubular members 2!!
and 2 I, Fig. 8, prevent the respective lifting tubes
from turning.
Referring to Fig. 16, a left-thread pillar as
sembly 63 mounted on the cover 66 comprises a
55 left-hand lifting nut ‘is suitably secured inter
nally of the upper end of the lifting tube 12
whose lower end passes through a suitable stuffing
box 69 provided in the cover 56. This nut is pro
vided with an internal left-hand worm thread
60 to accommodate the left-hand thread on the lift
ing screw 15 which is positioned internally of the
lifting tube 72. Disposed externally of the lift
ing tube 12 is a hollow driving shaft 1'5 having
its lowered end mounted in a suitable bearing 16
65 and keyed to a left-hand worm wheel ll. The
upper end of the driving shaft 15 is mounted in
a suitable bearing 18, and keyed to a suitable
mechanism 19 for coupling the upper end of this
driving shaft to the upper end of the lifting screw
70 74 such that rotary movement of the driving shaft
15 is effectively transmitted to the lifting screw
14.
Referring to Fig. 16, a right-thread pillar as
sembly 62 mounted on the cover 66 comprises‘a
75 right-hand lifting nut 82 suitably secured inter;
2,407,240
ll
nally of the upper end of the lifting tube ‘II which
passes through a suitable stuffing box 6i provided
in the cover 66. This nut is formed with an in
ternal right-hand worm thread to accommodate
the right-hand thread on lifting screw 33 which
is positioned internally of the lifting tube 'II.
Disposed externally of the lifting tube ‘II is a
may pass. On the upper surface of such worm
wheel are disposed a plurality of spring-controlled
vertical projections I68 which are accommodated
in corresponding openings I ISa provided in the
lower surface of an annular plate I Ilia ?rmly fas
tened to the uppermost end of the shaft I2, Figs.
16 and 24. When these projections are seated
in the openings, the rotary movement of the worm
wheel is transmitted to the shaft and thereby to
right-hand worm wheel 85. The upper end of the 10 the sound apparatus II. Although not shown in
the drawings, the shaft is operatively connected
driving shaft 84 is mounted in a suitable bearing
to a suitable stop whereby the clockwise and
87, and keyed to a suitable mechanism 88 for
‘counter-clockwise training of the sound device
coupling the upper end of this driving shaft to
are limited to prevent damage to the cable I3.
the upper end of the lifting screw 83 such that
In accordance with the present invention, an
rotary movementrof the driving shaft 85 is ef 15
arrangement for guiding the movement of the
fectively transmitted to the lifting screw 83.
raft for projecting the sound translating appa
Referring to Figs. 16 and 19, motor 95} mounted
ratus
n its non-working position to its work
on the cover 56 has its armature connected
ing position, and for retracting the sound trans
through coupling SI to the left-hand end of a
lating apparatus from its working position to its
shaft 92 mounted intermediate its opposite ends
non-working position, as the ship moves in the
on suitable bearings Q3 and 9t and carrying a
water, will now be explained. Referring to Figs.
worm 95 meshing with the worm wheel 86., rThe
i5 and 20, a staunch member He is verti
right-hand end of the shaft 92 is extended
cally positioned at the extreme left-hand or aft
through a coupling $35 to one end of a shaft 9'!
and of the housing es so as to constitute substan
whose opposite end is joined by coupling 98 to
tially the left-hand wall thereof. Disposed in
one end of a shaft 9a. This shaft is mounted
teriorly of the housing 64 in alignment with the
intermediate its opposite ends on a pair of bear
member I53 and spaced from the longitudinal
ings I00 and Iill, and carries a worm Hi2 mesh
edges thereof is a rail III which is attached at
ing with the worm wheel ll. The extreme right
its top and bottom to the member M9 by a pair
end of the shaft 99 is adapted for use with a
of adjustable supports I I2. Each adjustable sup
hand crank I93 shown in dot-dash lines. It is
port iii? comprises a pair of exteriorly threaded
understood that the motor 90 serves to actuate
bushings ii positioned in a pair of horizontally
the worm wheels I‘! and 36 via the shaft structure
spaced openings I24 formed with threads to ac
just previously described; and further that the
commodate the bushings and disposed oppositely
hand crank I23 is to be employed when the motor
to and in substantial alignment with a pair of
9:) is deenergized.
horizontally spaced threaded openings i [5 formed
A limit switch I Illa of suitable structure is
in the rail iii. In Fig. 20 it will be noticed that
mounted on the uppermost end of the right
the right-hand end surfaces of the individual
thread pillar assembly 62, Fig. 16, in engagement
with the lifting screw 83, and serves to control 40 bushings H3 engage the left-hand or rear sur—
face of the rail III, Positioned in the opening
automatically the disconnection of electric power
of each bushing IE3 aligned with its associated
from the motor 38 when the raft has reached
opening H5 is a screw iIli whose shank has an
predetermined positions in its raising and lower
outside diameter which is substantially less than
ing movements which will be hereinafter pointed
the diameter of the internal openings in indi
out. Although not shown in detail in the draw
vidual bushing M3 for a purpose which will be
ings, it will be understood by those familiar with
hereinafter pointed out.
the art that the lifting screw 83 is adapted, under
Underneath the head of the screw H6 in en
control of a preselected number of revolutions, to
gagement with the left-hand surface of the bush
actuate individual sets of contacts in the limit
ing I I3 is a washer Ill; and interposed between
switch whereby the aforementioned power dis
the latter and the under face of the head of the
connection is accomplished.
screw 5 is is a lock washer MB. A gasket H9 and
Referring to Fig. 12, bearings 35 and 35 on the
plug
serve to render water-tight the outer
steady bracket 32 serve to support the shaft I2
end of individual openings IM. A plurality of
carrying the sound device I I against lateral move
recesses i2! located in the outer surface of
ment, except to the extent of a slight misalign
plug lid accommodate a suitable tool, not shown,
ment of the shaft I2. Such support is advan
whereby this plug may be inserted into and re
tageous when the sound device is fully extended
moved from the opening IM. Secured suitably
to its operating position, Fig. 6. A stuffing box
to the surface of the member I53 located in
I I Ia of suitable structure is mounted on the cover
66, Figs. 16 and 19, to permit the shaft I2 to pass (Bil teriorly of the housing 65% and in substantial
alignment with the openings Iii is a pair of
therethrough in slidable fashion as the raft is
spaced and aligned blocks I22 and i213, each of
lowered and raised in a manner which will be
vhich embodies a threaded opening i2ll. In the
presently explained, and tends to keep the sea
opening B2“- of block l22 is a screw i525 and in
water from entering thesound compartment.
Also mounted on the cover 66 in proximity of 65 the opening I24 of block IE3 is a screw I26, each
of which screws is positioned such that its head
the stuf?ng box IIIa is a mechanism ilZa, Figs.
engages a portion of the surface of the rail IiI
16 and 19, for rotating the shaft I2 and thereby
opposite to that engaged by the other screw.
training the sound device I I on objects submerged
Referring to Figs. 14, 15 and 20, it is apparent
in the sea water in the familiar manner. Al
that, relative to the ship, the rail III may be
though not shown in detail in the drawings, this
actuated in forward, aft, and effective rotary
driving mechanism is a well-known structure and
(that is, top in forward direction and bottom in
includes an electric motor, a shaft suitably con
aft direction, and vice versa) directions by suit
nected to its armature and carrying a worm I95,
able adjustment of proper individual bushings
Fig. 24, meshing with a worm wheel II’JB having
an axial opening I9‘! through which the shaft ‘I2 75 II3-and screws H6 in individual supports II2;
hollow driving shaft 8!} having its lowered end
1 mounted on a suitable bearing 85 and keyed to a
2,407,240
9
10
opening of the bushing Ill! as above pointed out,
the rail I 36 is rendered capable of the movements
just mentioned. Obviously, the rail I33 is also
and the rail II! may be actuated in port, star
board, and effective rotary (that is, top in port
direction
bottom
starboard direction, and
vice versa) directions by suitable adjustment of
capable of any desired combination of such
movements. As the rail It‘! is mounted similarly
to the track I35, it is understood that the rail
$37 is also capable of adjustment in all directions
proper individual screws I25 and I26 in individ~
ual supports I52. Due to the difference in the
diameters of the internal opening of the bush
ing H3 and the shank of the screw Iit as above
aforeidenti?ed with the rail I35.
In connection with Fig. 8, it has been herein
speci?ed, the rail III is rendered capable of such
directional actuations. Obviously, the rail Iii 10 before explained that the raft carries a roller I8
the opening I25 therein and provided with a set
at its left-hand end and a pair of rollers I9, IS
in, proximity of its right-hand end. The roller I8
is mounted on a shaft I563, Fig, 22, extending
between the two projections of an associated U
screw I28. These set screws serve to lock the re
shaped support ilii, Fig. ‘8. Each of rollers I9, IS
spective screws I25 and IE6 in position after the
hereinbefore described adjustments of the rail
:J-shaped support Isl, Fig. 8, which shafts and
may be actuated in any combination of such di~
rections. In each of the blocks I22 and I23 is a
threaded opening I21 disposed transversely to
mounted on a shaft ass extending between a
U~shaped supports are substantially identical
iii have been made for a purpose that will sub
with the shaft i553 and U-shaped support I5I,
sequently appear, A slot I Iiia in the end of each
screw Ii? enables staking to prevent its turning 29 respectively. The mounting of the roller I8 on its
associated shaft and U-shaped support will now
in the rail iII, after the screw IE5 has been
be explained.
Referring to Fig. 22, a, pair of externally
tightened in position.
Referring to Figs. 14, 15 and 21, angle irons I35
and IE5 arc oppositely disposed in vertical align
ment in proximity of the right-hand end of the
housing S5- such that the parallel legs of both
threaded bushings I52 and I53 are oppositely
disposed in the legs of the U-shaped support I5I
such that the collars of the respective bushings
angle irons are suitably attached to substan
are disposed toward each other and such that the
tially opposite portions of the inner surface of
the housing 6'2. Disposed in front of the left
shaft I53 is positioned therein. Intermediate
these bushings on the shaft IE8 is disposed an
eccentric bushing I54 which is keyed to this shaft
at Me, On the outer periphery of the eccentric
bushing is positioned a ball bearing I55 carrying
the roller I8. Intermediate the shoulder of each
of the bushings E52 and I53 and one surface of
the ball bearing is a shield I56. Near the lower
hand face of the other leg of angle iron I311 is
a rail IE6, and in front of the left-hand face of
the angle iron 335 is a rail E33. These rails are
attached to the respective angle irons at a plu
rality of points by an adjustable support i133.
Each adjustable support I38, Fig. 21, comprises
a block I39 suitably secured to the rear face of
the free leg of angle iron I34. In a threaded
opening Ili? formed in the combined angle iron
its and block I39 is positioned an exteriorly
threaded bushing Mi whose left-hand end sur
face engages the right-hand or rear surface of
the rail I36. In the rail I36 at a point opposite
to the bushing HM and in alignment therewith
is formed a threaded opening M2. Positioned in
the aligned bushing Iii! and opening I42 is a
screw Ids whose shank has an outside diameter
which is substantially less than the diameter of
the internal opening of the bushing [ill for a pur~
pose which will appear subsequently. Interme
diate the right-hand end surface of the bushing
30
end of the shaft I56 is a washer I51, a nut I58
held in place by a cotter pin I59 extending
through a suitable opening in the lowermost end
of the shaft I58.
Referring to Fig. 22, the upper end of the
shaft I5?) carries an integral head I60 whose peé
riphery is formed with a plurality of scollops
which are numbered. from 1 to 12 as shown in
Fig. 23 for a purpose that will be later explained.
A set screw I?I is positioned in the U-shaped sup
port I5! at a point directly beneath the screw
head I68, and is accommodated in individual
scollops thereof.
When the screw ISI is entirely removed from
the U-shaped support IBI and the cotter pin is
IdI and the head of the screw Hi3 are a washer
also detached from the shaft I59 to enable a
Hill and lock washer ME. A block Ids is suitably
secured to both inner surfaces of the angle iron
iSc at a point opposite to the opening I122 in the
rail I36. A threaded opening Iil'i provided in
loosening of the nut E58 thereon, the shaft I58
may be rotated in either a clockwise or counter
clookwisedirection. Such rotation may be con
' tinued until a desired scollop in the screw head
IE0 is positioned directly above the screw IGI
whereupon the latter is re-inserted into the U
shaped portion I 5| together with a tightening of
to lock the latter in position. A slot ii-l?a in the
the nut I58 on the shaft I55! and replacement
end of each screw Hi3 enables staking to prevent "‘» of the cotter pin I59 to lock the shaft I59 in the
its turning in the rail I36, after the screw I53
desired position. As a consequence, the eccen~
has been tightened in position.
trio bushing 554i has also been rotated in either
Referring to Figs. l4, l5 and 21, it is apparent
a clockwise or counter-clockwise direction. The
that, relative to the ship, the rail I36 may be
effect of such clockwise rotation is to move the
actuated in forward, aft, and effective rotary ‘,,.
(that is, top in forward direction and bottom in
roller is a predetermined distance in a forward
direction relative to the raft and ship; while the
aft direction, and vice versa) directions by proper
effect of such counter-clockwise rotation is to
adjustment of the bushing Hi! and screw I43 in
move the roller 28 a predetermined distance in an
individual supports 538; and the rail I38 may be
actuated in port, starboard, and rotary (that is, » aft direction relative to the raft and ship. Each
of the scollops 1 through 12 represents a prede
top in starboard direction and bottom in port
termined distance, and the effective distance de
direction, and vice versa) directions by proper
pends on the n mber of scollops passing the
adjustment of the screw I43 in individual sup
screw iei. For example, in one illustration of
ports I38. Due to the difference in the diameters
Fig.
23, the roller I3 was adjustable from 0.001
75
of the shank of the screw I43 and the internal
this block accommodates a screw 248 whose head
engages a portion of one surface of the rail I36.
A lock nut I49 positioned on the screw I48 serves
2,407,240
11
12
to 0.010 inch, and locked in any one of twelve
alignment between the housing and raft which ir
regularities may be occasioned during manufac
positions through such adjustable distance.
Also, it is apparent in Fig. 22 that the bush
ings I52 and I53 may be rotated in the respective
legs of the U-shaped support I5! in such rela
tive directions that
roller £2 may be caused
to slide on its associated shaft I55 in either port
or starboard directions relative to the raft and
ship. As the individual rollers I9, IS are mount
ed on the raft in a manner which is substan
ture or the ship’s tour at sea.
In positioning the
raft in the housing initially, the engagement be
tween the individual rails and associated rollers
is accomplished with varying amounts of force
such that the effective force of such engagement
is a maximum when the raft attains approxi
mately its lowermost position for fully projecting
10 the sound apparatus into the sea Water in order
tially identical with that of the roller I8, it is
understood that the individual rollers is may be
moved relative to the raft and ship in the direc
tions just described for the roller I8. From the
foregoing it is clear that when the rollers it and
I9, I9 are moved in the port direction, the raft is
effectively moved in the starboard direction rela
tive to the ship; and when the rollers It and I9,
I9 are moved in the starboard direction, the raft
is effectively moved in the port direction rela
tive to the ship.
Further, it is apparent in Fig. 22 that
bush
ings I52 and IE3 associated with the roller I8
and similar bushings associated with individual
rollers I 9, I 9 may be rotated in the legs of the
mentioned. This will also serve to compensate
for irregularities in the sizes of the replacement
respective U-shaped supports Itl, Hi8 and i5I,
parts.
Fig, ‘8, in such relative directions that the roller
Although the invention is described in connec
tion with three rails and associated rollers, it is
not necessarily limited thereto, and may be used
I8 is caused to move in a port direction while both
rollers I9, I9 are caused to move in a starboard
direction to impart to the raft an effective coun
terclockwise rotation in a horizontal plane; or
the roller I8 is caused to move in a starboard di
rection while both rollers I9, I9 are caused to
move in a port direction to impart to the raft an
effective clockwise rotation in a horizontal plane.
The utility of such e?ective rotary movement of
the raft will become clear later on.
In explaining the operation of the invention,
which will be done presently, it will be assumed
that the apparatus hereinbefore described is as
sembled in the ship’s sound room such that the
raft is so positioned interiorly of the trunk that
the rollers I8 and I9, I9 engage the respective
rails III, I35 and I31; and such that the motor
90 through the pillar assemblies 62 and 63 actu- ~
ates the lifting tubes ‘H and ‘I2, respectively, to
lower the raft approximately to its lowermost
limit as shown in Fig. 9 and to retract the raft
approximately to its uppermost limit illustrated
in Fig. 16. As the raft carries the sound translat- 1'
ing apparatus as above described, it will be un
derstood that such apparatus is also moved be
tween its lowermost and uppermost limits. Con
sequently it is apparent that when the raft is in
its uppermost position, the sound device II is -
that the dome will be rigidly supported to re
sist movement tending to be caused by the force
of the sea water as the ship is propelled therein
as hereinbefore mentioned and such that the ef
fective force of such engagement decreases pro
gressively as the raft is moved towards its upper
most position, and is substantially a minimum
when the raft attains approximately its upper
most position for retracting the sound apparatus
substantially entirely from the sea water. In the
event any of the rails and/or rollers become
fouled, the fouled parts may be replaced by ad
justment of the proper elements hereinbefore
with one or more rails depending on individual
installations.
What is claimed is:
1. In combination, in an under-water sound
system, apparatus for mounting on a ship having
an opening below its water line and for transmit
ting sound waves into the water and receiving
sound waves from the water, a housing for said
apparatus, said housing having an opening at one
end and allowing said apparatus to move interi
orly thereof such that said apparatus is capable
of being lowered into the water through said one
housing opening and of being retracted from the
water through said one housing opening, said
housing having said one end mounted on said
ship at said ship’s opening such that said housing
opening aligns substantially with said ship open
ing and such that said housing projects interior
ly of said ship, means positioned horizontally in
the interior of said housing and capable of lower~
ing and raising movements interiorly of said
housing for supporting said apparatus in said
housing and imparting corresponding lowering
and raising movements to said apparatus, means
for actuating said supporting means in said low
ering and raising movements and thereby lower
also in its uppermost position. Hence, the sound
ing said apparatus into the water and retracting
device I I may be removed for inspection from the
said apparatus from the water respectively, and
dome by disconnecting the steady bracket from
adjustable means interposed between said hous
the raft in the manner hereinbefore pointed out,
ing and said supporting means for maintaining
detaching plate I65 from the cover 66, Fig. 16, 60 the horizontal position of said supporting means
and lifting, through a suitable opening I 66 formed
in the interior of said housing.
in the cover 60, the steady bracket and the sound
2. The combination according to claim 1 in
device I I, both of which are secured to the lower
which said adjustable means comprises a plural
end of the shaft I2. In such case, the upper por
ity of elements positioned at each of at least three
tion of the annular member 26 engages resilient
spaced points on said housing and supporting
member I613 for preventing sea water from enter_
means and cooperating thereat for maintaining
ing the ship’s sound compartment.
the horizontal position of said supporting means
The operation of the invention is such that the
position of the raft relative to the housing may
be adjusted by adjusting individual rails II I, I36
and I31 and/or individual rollers I3, and I9, I9
as hereinbefore explained. Thus, relative to the
in the interior of said housing, certain of said ele
ments at individual points being adjustable rela»
tive to others of said elements at the same points
for effectively moving said supporting means to
maintain the horizontal position of vsaid last
trunk, the position of the raft may be adjusted
means in the interior of said housing.
in forward, aft, port, starboard, and rotary di
3. The combination according to claim 1 in
rections to compensate for any irregularities of 75 which said adjustable means comprises a pair of
2,407,240
13'
means positioned at each of a plurality of spaced
points on said housing and supporting means and
cooperating thereat for maintaining the hori
zontal position of said supporting means in the
interior of said housing, at least one of said means
of each of said pairs at one or more of said points
14.
adjustable relative to the other means of the
same pair at the same points for moving said
supporting means substantially in a rotary direc
tion interiorly of said housing and thereby main
taining the horizontal position of said support
ing means in said housing.
'
9. In combination, in an under-water sound
system, apparatus for mounting on a ship hav
means of the same pair at the same point for ef
ing an opening beneath its water line and for
fectively moving said supporting means to main
tain the horizontal position thereof in said hous 10 transmitting sound waves into the water and re-‘
ceiving sound waves from the water, a hous
ing.
ing having an opening at one end and allow
4. The combination according to claim 1 in
ing said apparatus to move interiorly thereof
which said adjustable means comprises a pair
such that said apparatus may pass into and out
of means positioned at each of a plurality of
spaced points on both said housing and support 15 of said housing, said housing being ?xedly at
being adjustable relative to the other of said
ing means and cooperating thereat for maintain
ing the horizontal position of said supporting
means in
interior of said housing, each means
of said pair of means at individual points being
adjustable relative to the othe* means of the
same pair at the same points for effectively mov
ing said supporting means in a port direction
relative to said housing and ship and thereby
maintaining the horizontal position of said sup
porting means in said housing.
5. The combination according to claim 1 in
which said adjustable means comprises a pair of
means positioned at each of a plurality of spaced
points on both said housing and supporting
means and’ cooperating thereat for maintaining
the horizontal position of said supporting means
in the interior of said housing, each means of
said pair of means at individual points being
adjustable relative to the other means of the
same pair at the same points for effectively mov
ing said supporting means in a starboard direc
tion relative to said housing and ship and there
by maintaining the horizontal position of said
supporting means in said housing.
tached to said ship at said ship opening such
that said housing opening aligns substantially
with said ship opening and such that said hous
ing projects interiorly of said ship, means posi
20 tioned horizontally in the interior of said hous
ing for supporting said apparatus and capable of
raising and lowering movements for actuating
said apparatus into and out of said housing,
means for actuating said supporting means in
25 the lowering and raising movements to project
said apparatus into the Water and to retract it
therefrom, and adjustable means for maintain
ing said supporting means in the horizontal posi
tion and simultaneously therewith establishing
30 engagement between said housing and support
ing means with varying amounts of force at
each of a plurality of spaced points on said
housing and supporting means during the lower
ing and raising movements of said last means
35 such that the effective force is substantially a
maximum when said supporting means is low
ered approximately to its lowermost position in
said housing. at which position said apparatus is
projected into the water substantially to its full
6. The combination according to claim 1 in 40 est extent, and such that the force of the en
gagement progressively decreases as said sup
which said adjustable means comprises a pair
porting means is raised towards its uppermost
of means positioned at each of a plurality of
position, and is substantially a minimum when
spaced points on both said housing and support
said supporting means is raised approximately
ing means and cooperating thereat for maintain
ing the horizontal position of said supporting 45 to its uppermost position, at which position said
means in the interior of said housing, each means
apparatus is substantially entirely Withdrawn
from the water.
10. The combination according to claim 9 in
which said adjustable means comprises at indi
same pair at the same points for eiiectively mov
ing said supporting means in a forward direc 50 vidual points a pair of elements, one of which
is mounted on said housing and the other of
tion relative to said housing and ship and there
which is mounted on said supporting means, each
by maintaining the horizontal position of said
element of individual pairs being adjustable rela
supporting means in said housing.
tive to the other element of the same pair at
'7. The combination according to claim 1 in
which said adjustable means comprises a pair of 55 the same point for varying the force of the en
gagement between said housing and supporting
means positioned at each of a plurality of spaced
means.
points on both said housing and supporting
11. The combination according to claim 9 in
means and cooperating thereat for maintaining
which said adjustable means comprises at indi
the horizontal position of said supporting means
in the interior of said housing, each means of 60 vidual points a pair of elements, one of which
is mounted on said housing and the other of
said pair of means at individual points being
which is mounted on said supporting means, said
adjustable relative to the other means of the
elements on said housing being adjustable rela-'
same pair at the same points for effectively mov
of said pair of means at individual points being
adjustable relative to the other means of the
ing said supporting means in an aft direction
tive to said elements on said supporting means
relative to said housing and ship and thereby 65 for varying the force of the engagement between
said housing and supporting means.
’
maintaining the horizontal position of said sup
12. The combination according to claim 9 in
porting means in said housing.
which said adjustable means comprises at indi
8. The combination according to claim 1 in
vidual points a pair of elements, one of which
which said adjustable means comprises a pair of
means positioned at each of a plurality of spaced 70 is mounted on said housing and the other of
which is mounted on said supporting means,
points on both said housing and supporting
said elements on said supporting means being
means and cooperating thereat for maintaining
adjustable relative to said elements on said hous
the horizontal position of said supporting means
ing for varying the force of the engagement be
in the interior of said housing, each means of
said pair of means at individual points being 75 tween said housing and said supporting means.
2,407,240
15
16
13. In an under-Water sound system for a ship
porting
rality of means
spaced for
points
maintaining
on said housing
said suppov
and
leaving an opening in its keel, including appa
ratus for transmitting sound waves into the Water
means in the horizontal position by providi .g
inultipoint engagement between said supporting
and receiving other sound Waves from the Water,
means for lowering said apparatus into the Water 5 means and housing, comprising plurality of in
through said keel opening and retracting said
dividual rails positioned vertically in spaced re~
apparatus from the water through said keel open
lation on the interior surface of said housing,
ing, comprising a housing for said apparatus,
means for adjustah-ly mounting individual rails
said housing having an opening at one end for
on said housing such that individual rails are
allowing the passage of said apparatus from said 10 capable of longitudinal, transverse and rotary
housing into and out of said water,
housing
movements relative to said housing, a plurality
being positioned on said ship at said ship open~
of rollers positioned in spaced relation on said
ing so that said housing opening aligns substan»
supporting means such that each roller engages
tially with said keel opening and so that said
one of said rails, means for adjust-ably mount
housing projects interiorly of said
means 15 ing each of said rollers on said supporting means
positioned longitudinally in the interior‘ of said
such that individual rollers are capable of longi
housing and capable of lowering and raising
tudmal and transverse movements relative to
movement in said housing for supporting said
said supporting means and such that said sup
apparatus and imparting such movement to said
porting means is capable of rotary movement
apparatus, means mounted on said housing for 20 relative to said housing, each rail and associated
lowering and raising said supporting means so
roller constituting one of said adjustable means
at each of said plurality of points.
that said apparatus is lowered into the Water
and retracted from the water respectively, and
adjustable means positioned at each of a plu
CHARLES C. BARBER.
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