close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2405595

код для вставки
Aug. 13, 1946-
'
J. F. G. MILLER ETAL
2,405,595
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND vSUPPORTS THEREFOR
Filed Feb., 3, 1942
'7 Sheé'hs-Ehe?. l
Fig. l \
\ 23 '
TOMEASURING '
INSTRUMENTS
1
INVENTORS
\
EL/ZZ
s9
'
,1. F. e. MILLER
-
BY
R. MAC HENRY
,
A“. 13, 1946.
J. F. e. MILLER ETAL
2,495,595
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND SUPPORTS THEREFOR
Filed Feb. 3, 1942
'7 Sheets-Sheet 2
2E
56
e4
e7
':
‘i 1 62
l g
/
62
,
INVENTORS
67/
22
‘69
63
J. F. s. MILLER
R. MAC HENRY
BY
ATTO
EY
J. F. e. MILLER ET AL
'
A59
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND SUPPORTS THEREFOR >
Filed Feb. 3, 1942
I34
64
7'Sheets-Sheet 5
'
s4,
INVEN. 0R5
J, F. GdwLLER
MAC HENRY
F '
'0
,l
67
v
84
IO
67-
-
'
84
-
BY.
Aug. 13» 1945-
J. F. G. MILLER ET AL
2,405,595
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND SUPPORTS THEREFOR
Filed Feb. 5, 1942
7 Sheets-Sheet 4
|
z
.
|
v
'
i
|42
..|NVENT0R5
,1
J. F. G. MILLER
\\ -
R. MAC HENRY
B;
‘
ATTO NEY
Aug- 139 1946“
,
Y
J’. F. G. MlLLER ETAL
‘
2,405,55
MEANS FOR- INSTALLING MAGNETIC DETECTING DEVICES AND SUPPORTS THEREFOR
Filed Fe‘o._ 3, 1942
7 Sheets-Sheet 5
/////%;<
w
IT
I
I
B4
64
-
I60
m-vENToRs
J. F. G. MILLER
R’
BY
ATTO ‘ NEY
Aug. 13, 3946.
'_J. F. G. MILLER ET AL.
‘
294059595
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND SUPPORTS THEREFOR
Fiied Feb. 5, 1942
'88 is
l9!
-'-*
- 204
~
-
.
7 Sheets_sheét 6
v is 192589
_ ___:2_a3
206,
'
"7i
l84"
209
'
209
%/
20?
153%
INVENTORS
J. F. G- MILLER
22l
_
'
~
'
BY
R, MAC
,
1
I’
HENRY
Aug‘ 133, 16.
J. F. G. {WELLER ETAL, ‘
'
2,405,595
MEANS FOR INSTALLING MAGNETIC DETECTING DEVICES AND‘SUPPORTS THEREFOR .
Filed Feb. 3, 1942
Sheets-Sheet- 7
.
mvEN'i'oRs
J. F. e. MILLER
R. MAO
RY
Patented Aug. 13, 1946
* UNITED
2,405,595
()FFIQE
STATES
2,405,595
(
MEANS FOR INSTALLING MAGNETIC DE
TECTING DEVICES AND SUPPORTS THERE
FUR
Joseph F. G. Miller, South Arlington, Va., and
Richard MacHenry, Washington, D. C.
Application February 3, 1942? Serial No. 429,410
14 Claims.
(Cl. 61-63)
(Granted under the‘ act of March 3, 1883, as
amended April 30, 1928; 370 0. G. 757)
1
This invention relates to means for installing
magnetic detecting devices and the supports
therefor in a predetermined exact arrangement '
2
comprising a tubular member preferably of length
somewhat greater. than the depth’ of‘ the water
within which the magnetometer support is to be
on the bed of a body of water for the accurate
installed having a cap at the upper end thereof
determination of the magnetic ?eld set up by a
to which is affixed a support by means of which
vessel. More speci?cally, the invention relates
the tubular member may be raised and lowered
to means for installing a plurality of search coils
at will by a derrick mounted on a barge or vessel.
or magnetometer devices in a vertical position
The tubular member is provided with a ?ange at
according to an exact predetermined arrange
the lower end thereof adapted to be releasably
ment or pattern such that the search coils are 10 clamped to a complementary ?anged portion of
embedded within the bed of a body of water of
the tubular member employed for mounting the
su?icient depth to permit the passage or arrange
magnetometer coils, the magnetometer mounting
ment of a vessel directly above the coils and the
tube being clamped to the aforesaid tubular
magnetic influence of the various portions of the
member by a plurality of clamping devices adapt
vessel upon the search coils to be accurately de
ed to be released by a suitable cam and lever
termined by means of certain indicating devices
arrangement located sufficiently near the upper
located at an observation station and electrically
end of the tubular member to be above the level
connected to the search coils by means of suit
ofv the water when "the magnetometer support is
able submarine cables extending therebetween.
embedded within the bed of the water.
It is the general practice to install the search 20 The lower ‘end of the magnetometer support
coils or magnetometer devices within lengths of
terminates preferably in a tapered ?tting or cap
nonmagnetic tubing embedded within the bed of
having an aperture in the central portion thereof
the body of water in such a manner that the
adapted to permit the flow of water therethrough
coils are arranged at a predetermined depth of
in response to the operation of a water pump ar
submersion within the water with the upper end 25 ranged on the vessel and having the outlet end
of the tubing substantially ?ush with the bed of
thereof operatively connected to the tubular
the water, this arrangement of search coils and
member by a length of ?exible tubing. An ar
supports therefor being referred to hereinafter as
rangement is thus provided in which water is
a range or magnetometer array.
Heretofore
forced under pressure by the aforesaid pump into
when arranging a magnetometer array the usual 30 the tubular member and thence through the out
practice was to bolt or otherwise couple a length
let in the lowermost end of the magnetometer
of pipe or tubing to thetubing comprising the
magnetometer support and employ a diver for
disconnecting the magnetometer support from
support whereby the weight of the jetting tool is
usually su?icient to cause the magnetometer sup
port to be embedded in a predetermined vertical
the ?rst named tube after the magnetometer sup- ' 35 position within the bed of the water at any de
port had been arranged in a vertical position
sired depth without the exercise of mechanical
within the bed of the body of water. Such an
energy other than the ?ow of the Water under
arrangement obviously possesses several disad
pressure through the end thereof.
vantages, as will be readily understood, chief
When the magnetometer support has, been set
among which‘ are the loss of time required for the 40 in a predetermined location to a desired depth'
diver to descend to the bed of the water and to
within the body of water, the release levers at the
effect the necessary disconnection between the
upper end of the tubular support are moved to the
magnetometer support and the length of tubing.
release position thereby disconnecting the tubu
Furthermore, after the magnetometer supports
lar member from the magnetometer support
have been installed within the bed of the water, 45 whereby the tubular member may be raised by
the services of the diver are again ‘required to
the aforesaid derrick and attached to another of
the magnetometer supports with a minimum of
delay and without the services of a submarine
arrange the magnetometer within the support,
thereby consuming a considerable amount of val
uable time, particularly when a state of national
emergency exists in which the steps necessary to
the defense of the country must be taken quickly
ternative arrangement in which the magnetome
and the defense work must be done in an e?icient '
ter support may be set in a desired location at a
manner and with a minimum amount of effort.
The present invention contemplates the provi
sion of a magnetometer installing or jetting tool
diver.
L
'
The present invention also contemplates an al
predetermined depth of submersion beneath the
surface of the water with the search coils or mag
netometer instruments installed within the sup- '
2,405,595
3
predetermined vertical position within the bed of
port prior to embedding the same within the bed
of the body of water. It will be understood that
when the alternative arrangement is employed a
single installing operation is sufficient to set the
magnetometer support complete with the mag
the water.
Still other objects, advantages and improve
ments will be apparent from the following de
scription taken in connection with the accom
panying drawings of which:
netometer instrument or search coil in a desired
position in which the services of a diver are not
required ior disconnecting the tubular member
from the magnetometer support or for subse
quently installing the detecting instrument with
Fig. 1 is a diagrammatic view of an arrange
ment suitable for installing magnetometer sup
ports within the bed of a body of water in accord
10 ance with the present invention;
Fig. 2 shows in diagrammatic form a range or
in the support. When the latter arrangement is
employed, the tubular member may comprise,
among other elements, a pair of jetting tubes de
magnetometer array;
Fig. Sis an enlarged view of the device in an
tachably secured to the magnetometer support
assembled position;
Fig. '4 is a view taken along the line 4—-4 of
with their lower extremities substantially in hori 1B
Fig. 3;
zontal alignment with the lower end of the mag
Fig. 5 is an enlarged detail view partially
netometer support and the upper end of each of
broken away of the device of Fig. 3 in a release
position;
tending to a T connection at the valve [8, Fig. 1,
Fig. 6 is a view in elevation partially broken
in communication with the outlet oi the water 20
away of an alternative form of the device;
pump. The operation of the pump causes water
Fig. 7 is an enlarged fragmentary detail view of
to be ‘forced through the aforesaid tubes and
the clamping mechanism of Fig. 6;
thereby excavate the bed of the body of water
Fig. 8 is an elevational view partially broken
sufficiently to ‘enable the magnetometer support
to be ‘set in a predetermined vertical position 25 away of the device of Fig. 6 in the unclamped
position;
quickly, easily and with a high degree of accu
Fig. 9 is an enlarged detail sectional view taken
racy. It 'will, of course, be understood that when
along the line 9—9 of Fig. 8 showing the release
the arrangement of the outside jets is employed,
levers in the released position in dashed outline;
the lower end of the magnetometer support is
Fig. 10 is an elevational view partly broken away
?tted with a closed cap, preferably tapered or 30
of the device with the release levers thereof in an
pointed to facilitate the entrance of the support
the tubes connected by a ?exible tube or hose ex
within the’ bed of the‘ body of water. After the
magnetometer support has been. installed within
the bed of the water, the jetting tubes and the
jetting tool are withdrawn leaving the magne
initial locked position;
tometer support with the instrument therein em
bedded witnin the bed of the water.
One of the objectsloi the present invention is
the provision of newand improved means for ar
of one of the release levers and associated parts;
Fig. 13 is an enlarged sectional view of a seal
ing member suitable for use with the present
’
Fig. 11 is a view of the release lever locking
mechanism taken along the line I l-—! I of Fig. 10;
Fig. 12 is an enlarged View partially in section
invention;
Fig. 14 is a sectional view taken along the line
ranging a magnetometer in a predetermined po 40
lli—l4 of Fig. 13;
sition within the bed of a body of water without
Fig. 15 is a ‘fragmentary vie-w somewhat en
the'assistance of a diver.
larged taken along the line I5—l5 of Fig. 14;
Another of the objects is the provision of means
Fig. 16 ‘is a detailed view of an alternative de
forarranglng a magnetometer device in a pre
determined vertical position within the bed of a ., vice suitable for clamping together the various
body of water from a moored vessel in which the
pipe sections;
Fig. 1'7 shows an alternative arrangment for
services of a diver are not required.
installing a magnetometer array;
Another object is to provide means for arrang
ing a magnetometer support in a predetermined
Fig. 18 is an enlarged sectional view taken
vertical position within the bed of a body of 50 along the line l8—l 8 of Fig. 1'7;
Fig. 19 is a detailed sectional View taken along
water in which the magnetometer instrument is
installed within the support prior to the arrange
the line i9—l9 of Fig. 18;
‘
Fig. 2.0 is a enlarged sectional view taken along
ment thereof within the bed of the Water.
Another of the objects'is the provision of new
the lineZll-2U of Fig. 1'7;
Fig. 21 is a sectional view of a magnetometer
and improved means for arranging a magnetome
support With the magnetometer or search coils
ter support in an adjusted position within the
in the assembled position;
bed ore body of water by forcing a plurality of
Fig. 22 is a view taken along the line 22-22 of
jets of water into the path of travel of the sup
Fig. 21;
port as the support enters the bed of the water
and thereafter removing the jetting means from‘ 60 Fig. '28 is an enlarged sectional view of a nozzle
the support while the support is in the adjusted
suitable for use with the device of Fig. 3; and
position within the bed.
i
.
A further object is the provision of means for
detachably securing a magnetometer mounting
support to a jetting tool comprising a tubular
member in watertight relation thereto whereby
jetting'water may be forced through the tubular
member and the mounting support.
A still further object is the provision of a new
and improved jetting tool having a plurality of
jettingmembers detachably secured thereto and
releasably connected to a magnetometer support
Fig. 24 is a detail sectional view taken along
the line 24-24 of Fig. 23.
Referring now to the drawings, and more par
ticularly to Fig. 1 thereof there is shown thereon
a magnetometer support indicated generally by
the numeral l9 adapted to receive a search coil
or'a pair of magnetometer coils and provided at
the upper ‘end thereof with a ?anged portion for
deta‘chably securing the support to the jetting tool
indicated generally by the numeral E2. The jet
ting tool is, adapted to be raised and lowered by
in which an arrangement is provided for releas
the derrick l3 and winch M to an upper and
ing the magnetometer support from the surface of
lowe‘rjposition indicated’on Fig. 1 in broken out
the water when the support has been jetted to a 15 line. There is ‘also provided upon the vessel, a
2,405,595". '
5
6.
pump l5 having the inlet connection thereof'in
is'a rod 44 ?tted within a complementary recessed
communication with the sea water as by the pipe
portion of a sleeve 45 and secured thereto as by
[6 and the outlet connected as by the pipe I‘! to
a valve l8, the valve being in communication
with the jetting tool l2 as by the ?exible hose IS.
The pump 15 may be operated in any suitable
the pins 46, the nuts 41 being provided to pre
12 variably in accordance with the setting of the
valve !8 and thence through an aperture within
the cap 22 af?xed to the lower end of the mag
netometer support thereby providing an arrange
ment in which the weight of the jetting tool
and magnetometer support is su?icient to cause
able apertures provided therein, the plate 53 be
ing secured to the lower tube 29 in any suitable
vent'movement between therods 44 and the mem
ber 31. There is also provided a nut 48 on each
of the rods to prevent movement of the rod with
manner as by an electric motor operatively con
respect to the sleeve 45. Within each of the
nected to a source of electrical energy by the
sleeves 45 is threaded a rod 49 and locked there
conductors within the conduit 2! whereby the ' to as by the nut 5! and pin 52, the rods 49 pass
pump is caused to force water into the jetting tool 10 ing through a bearing plate 53 by means of suit
the support to be inserted into the bed of the '
body of water as the water is forced outward from
manner. The lower end of each of the rods 49
is threaded into a yoke 54 and secured thereto as
by the nuts 55 and the pins 56. Each of the
yokes 54 is rotata-bly connected to a clamping
member 51 as by the pins 58, the pair of bearing,
plates 59 and 6! being secured to the lower tube
25 and provided with suitable apertures for
the aperture within the cap 22, the winch l4 be-_
ing operated to allow the jetting tool to be low 20 slideably and rotatably supporting the clamping
ered into the bed of the water.
members 51. Each of the clamping members 51
On Fig. 2 is shown an array or range com
is provided with an arm 62 within which is
prising a plurality of magnetometers 23 arranged
within the bed of a body of water according to
an exact predetermined pattern and connected
to a plurality of measuring instruments as by the
conductors Within the cables 24 extending there
threaded the clamping bolt 63 whereby the ?ange
between.
64 affixed to the upper end of'the magnetometer
support it may be securely clamped to the
?anged portion 65 of the lower tube 29, a suit
able gasket 66 being inserted therebetween to
There is also shown on Fig. 2 a vessel
insure a watertight connection when the parts
25 having a pair of mooring lines 26 thereof at
are clamped together.
tached to suitable anchoring means such, for 30
The magnetometer support Ill comprises a tube
example, as the piles 21 illustrated. The bow
61 of nonmagnetic material such, for example, as
of the vessel is moored as by the anchors 28 in
brass, copper, phosphor-bronze or the like hav
a predetermined position with respect to the
ing a cap 22 af?xed to the lower end thereof in
range such that the magnetic characteristic of
any suitable manner as by brazing or welding the
the ship may be measured by the measuring in
parts together. The cap is provided with an
struments at the observation station, this mag
aperture 69 in the lower portion thereof, Fig. 23,
netic characteristic being herein referred to as
through which water is expelled from the jetting
the ship’s magnetic signature.
device. The lower end of the tube 61 is provided
On Fig. 3 is shown an enlarged view of a sim
with a plate 7!, Fig. 23, having a plurality of
pli?ed form of jetting tool comprising a plurality
apertures 72 therein adapted to» be closed by the
of lengths of pipe 29 coupled together in any suit—
resilient member 73 a?ixed thereto as by the
able manner as by the coupling SI and bolts 32,
rivets 74, a stop member 15 being provided to
the upper end of the pipe assembly being closed
prevent movement of the resilient members be
- by the cap 33 ai?xed thereto in any suitable
yond a predetermined position as water is forced
manner as by threading the parts together and 45 through the apertures 12. A shoulder 16 is pro
having aeu shaped portion 34 by means of which vided preferably Within the cap 22 in registered
the device may be raised or lowered at will.
engagement with the stop member 75 thereby to
There is also provided a pipe connection 35
prevent movement of the stop member as the
through which water is forced within the jetting
resilient member is forced thereagainst by the
tool at a predetermined degree of pressure such, 50 pressure of the water ?owing through the aper
for example, as 60 pounds.
.
tures 12. An arrangement is thus provided in
Secured to the upper tube 29 in any suitable
which water is allowed to ?ow from the jet or
manner as by brazing or welding the parts to
nozzle 69 but the return flow of water and mud‘
gether is an annular member 36 adapted to re
therethrough is prevented by. the member 13
ceive and slideably support a plurality of mem 55 when the pressure is removed from the jetting
bers 3'! to which are rotatably secured, as by the
tool l2.
bearing pins 38 the release levers 39. Each of
The magnetometer support I6 is adapted to be
the release levers is provided with a cam portion
released from the jetting tool l2 by rotating the
4! adapted to engage the plate or member 36
release levers 39 to the position shown on Fig. 5
and allow the members 31 to be moved down
by reason of a recessed portion 11 provided‘
ward as the release levers are moved to the posi
within the ?ange 64 secured to the magnetom
' tion shown on Fig. 5. The upper end of each of
eter support l0 whereby the jetting tool may be
the release levers is somewhat reduced and pro
withdrawn after the magnetometer support has
vided with a shoulder 42 adapted to be engaged
been placed in position within the bed of the
by the annular lock member 43 at suitable aper
body of water.
tures therein and prevent outward movement of
On Fig. 6 is shown an alternative form of the
the levers 39 from the position shown on Fig. 3
device of the present invention in which the cam'
until the lock member 43 has been raised above
members employed for releasing the clamps 78
the upper ends of the levers. The lock member
are adapted to coact with an annular member
43, it will be understood, is provided with a cen
19 secured to the lower tube 8| of the jetting tool,
trally arranged aperture of su?icient size to en
a suitable washer 82 being arranged preferably
able the member 43 to be raised or lowered at
between the cam member and the member 19.‘
will with respect to the tube 28.
The annular member 75 is provided with suitable
‘Secured to each of the members 31 in any suit
apertures therein adapted slideably and rotat
able manner as by threading the parts togetherv 75 ably to supportthe clamps 18, the clamps being
2,405,595“
7
, 8‘
additionally supported by the bearing plate 83v
tubing and pull rods or tubing and pull rods of
affixed to the tubular member ill. The clamp is
provided with a bolt 84! adapted to clamp the
different lengths in accordance with the depth of
the water within which the magnetometers and
supports are arranged.
The upper end of the rod I38 passes through
the bearing plate III secured to the tubular
member H2, the plate III having a plurality of
apertures therein adapted slideably and rotat
ably to support the rods I08. The upper end of
magnetometer support it) securely to the ?ange
65 whenthe cam 86 is in the position illustrated
on Figs. 6 and 7. Each ‘of the cam members 86
is rotatably mounted on the clamps ‘I8 as at 81
and connected with a pull rod 88 by the pin or '
bolt 89. The upper end of the pull rod is rotat
ably connected to the coupling 9I by the bear=
ing pin 92, the coupling being secured to the rod
93 in any suitable manner as by the pin 94. The
rod 93 is rotatably and slideably supported by '
the rod W8 is secured to the release lever H3
as by the pin or bolt H0 whereby the release le
ver may be rotated both vertically and horizon
tally thereby to release the magnetometer sup
port II! from the jetting tool. The upper end I I4
the bearing support 95 secured in any suitable
manner to the tubular member &I as by welding 16 of the release lever H3 is preferably somewhat
or brazing the parts together and additionally
reduced in size and adapted to be locked in a ver
tical position, Fig. 10, by the locking annular
supported by the annular members 85 secured to
member H5 having a plurality of apertures
the tubular member 8L The upper end of the
therein adapted to receive the end I I4 of the re
rod 93 is welded or otherwise secured to a cou
pling 91 having a bayonet slot 98 therein adapted 20 lease lever, the locking ring I I5 preferably resting
against a shoulder H6 on the release lever when
to receive the pin 99 secured to the rod IIH where
the release lever is in the locked position. The
by the jetting tool is adapted to be partially dis
release ring H5 is slideably supported by the
assembled for the purpose of more conveniently
tubular member H2 and adapted to be arrested
transporting the same by disconnecting the cou
pling I02 at the bolts I83 thereof and discon 25 in the downward movement thereof by the stops
II'I a?ixed to the tubular member H2, when the
necting the rods 93 from the rods Iill by the
release levers are in the unlocked position.
bayonet connection provided therebetween. The,
The release levers are provided with a pin or
rods I?l are slideably and rotatably supported by
rod H8 passing therethrough disposed within a
the bearing plates I 04 secured to the tubular
member I55, the upper end of the rods being 30 slotted portion H9 of a bar I2I rotatably mount
ed as at I22 by the support I23. The support I23
threaded preferably into a turnbuckle H36 and
has a laterally extending portion I24 having an
prevented from rotating with respect thereto by
aperture therein within which the shaft or rod
reason of the pin IO'I passing through the turn
IE8 is adapted to slide. The tubular member I I2
buckle and the rod IiiI.
is detachably secured to the tubular member I05
The upper end of the turnbuckle is threaded
in any suitable manner as by the coupling I25
preferably into a rod I08 and prevented from
and bolts I26, the upper end of the member H2
rotating with. respect thereto by a pin I09 pass
being closed as by the plate or cap I27 secured
ing through the rod I68 and the slots Within the
to the ?ange I28 as by the bolts I29 and sealed
turnbuckle. An arrangement is thus provided in
thereto by a gasket- I3! arranged between the
which the rod m8 may be adjusted with respect
cap I21 and the flange I28. A U shaped rod I32
to the rod IGI and maintained in the adjusted
having a plurality of nuts I33 thereon addition
position by the pin Hi9. Furthermore, by reasonv
ally clamps the cap I2‘! to the flange I28 and
of the employment of couplings such as the cou
provides an arrangement by means of which the
plings 91 and turnbuckles such. as the turnbuckles
I06 illustrated, the length of the members con 45 jetting tool may be raised or lowered at will.
The tubular member H2, it will be understood,
necting the release levers H3 with the clamp
is provided with a nipple or pipe similar‘ to the
members ‘I8 may be varied at will by providing
a greater or lesser number of rods such as the
pipe 35, Fig. 3, disposed preferably between the
stops I i7 and the ?ange I28 thereof by means of
rods I83, IBI and 93 or by interchanging the rods
with rods of different lengths whereby the jet 50 which water is forced under pressure into the
jetting tool.
ting tool is adapted to be employed for installing
‘There is also provided preferably between the .
magnetometer supports in the bed of a body of
?ange 64 secured to the upper end of the mag
water in which the magnetometer arrays may
netometer support it and the ?ange 65, a gasket
be arranged in diiferent depths of the water.
suitable for the purpose such, for example, as the
When employed for arranging a magnetometer
gasket illustrated on Figs. 13, 14 and 15. Refer
array within the bed of bodies of water of di?er
ring now to Fig. 13 on which is shown a detailed
ent depths the number of tubular sections H2,
View in section of a preferred form of gasket suit
I05 and 8i may be varied at will by reason of the
able for use with the present invention, an an
coupling arrangement provided between the sec
tions, or sections of tubing of different lengths 60 nular member I34 composed of material suitable
for the purpose, such as brass, copper or the like
may be employed to adapt the letting tool for
is arranged between two annular members I35 of
the more convenient use thereof with bodies of
suitable gasket material such, for example, as
water of greater or lesser depth according to the
rubber, leather, ?ber or the like held together
location of the range or ‘magnetometer array
as by the screws I35’ and secured to the ?ange
therein.
05
65 as by the screws i3? whereby the gasket may
Whereas in Fig. 3 the jetting tool comprises two
be retrieved as the jetting tool is removed from
lengths of tubing coupled together and suitable
the magnetometer support after the same has
for use with relatively shallow water and the
been jetted into position within the bed of the
arrangement of Fig. 10 shows a jetting tool com
prising three lengths of tubing coupled together 70 water. rI‘he gasket, it will be understood, is pro
vided with a sizable aperture I38 adapted to allow
adapted for use in somewhat deeper water, it
will be understood that, when employed for ar- -
ranging a magnetometer array within the bed
of a body of water of still greater depth, the
the ?ow of water therethrough during the jetting
operation.
In operation the magnetometer support In is
jetting tool may comprise‘ additional lengths 01 78 clamped to the jetting tool by the bolts 84, the
2,405,595
cam 86 and the release levers II3 being in the
position illustrated on Fig. 10, and the device
is lowered to the desired location by the derrick
I3. A stream of water is forced through the ap
erture 69 of the nozzle a?ixed to the lower end
of the magnetometer support when the mag
netometer support and jetting tool are lowered,
until the magnetometer support has been insert
_ ed a predetermined distance within the bed of
the water. The ?ow of water is interrupted as 10
by closing the valve l8, Fig. l or stopping the
pump I5, as the case may be, the valve I8, it will
be understood, having been previously opened a
predetermined amount in accordance with the
flow of water required to effect the desired jet
ting operation. The locking ring [I5 is now
raised clear of the release levers by an operator
stationed, vfor example, in a small boat adjacent
the jetting tool and the release levers are moved
to the position shown on Fig. 6 of the drawings
in readiness to e?ect the unclamping operation.
As the levers are moved to the position illus
trated on Fig. 8 of the drawings, the pin H8
thereof provides a fulcrum by reason of the en
gagement of the same with the lower portion of
the slot within the member I2! and as the lever
10
Water by the jetting tool of Fig. 3 or 6, as the
case may be, a search coil or a pair of mag
netometer coils is inserted within each of- the
magnetometer supports by a diver and an elec
trical connection between thesearch coils or mag
netometer coils is established to a plurality of in
dicating or measuring instruments by means. of
submarine cables connected to the magnetometers
or to the search coils, as the case may be. '
I On Fig. 21 is shown a pair of search coils dis~
posed within the casings I 52 and I 53 respectively,
each of the coils having a plurality of electrical
conductors arranged within the cables I51; and
I55 respectively. In the arrangement shown on
Fig. 21 the cables I 54 and I 55 pass through a
cover or plate I56 having an eye bolt I57 therein
by means of which the magnetometers may be
lowered to the diver. The cover I55 is also pro
vided with a pair of downwardly projecting pins
I58 adapted to pass through suitable apertures
I50 within the upper ?ange secured to the mag
netometer support I0, each of the pins I58 being
provided preferably with an aperture adapted to
receive the hooks I59 affixed to the chains I65
and thus lock the cover I58 to the magnetometer
support when the hooks are placed Within the
pins I 58. The other end of each of the chainsl 5|
thereof is caused to move upward thereby raising
may,v if desired, be secured in any suitable manner
the rod assembly and rotating the cam 85 to the
to the plate I55. _,
_.
.
.
position shown on Fig. 8. When this occurs the 30
The cables I54 and I55 are. secured preferably
clamp 18 is caused to move downward such that
to the plate 155 invany suitable manner as by a
the bolt 84 thereof is disengaged from the ?ange
brass or copper wire I62 wrapped about the cables
64. The release lever H3 is now moved to the
beneath the plate I55. The cable IEQ comprises
position indicated in dashed outline on Fig. 9
a ?exible rubber corev I 64 passing through a suit
thereby causing the rod assembly and the clamp 35 able Water stop or gland indicated generallyat
‘is to be rotated through an angular distance of
65 secured to the upper end of a tubular casing
substantially 90 degrees and thus move the bolt
I52 of nonmagnetic material such, for example,
85 and supporting arm therefor away from suit
as brass, copper or the like whereby Water is pre
able recessed portions provided within the ?ange
vented from leaking or seeping within the casing
65 su?ciently to enable the jetting tool to be 40 I52. About the casing I52 and secured thereto
withdrawn from the magnetometer support.
in any suitable manner is an annular member I5?
Whereas in the alternative form of the invention
adapted to slide freely within the magnetometer
shown on Figs. 3 and 6, the tubular sections of the
support and provided with a rod I68 secured in
jetting tool are detachably secured together by
any suitable manner to the plate I51, the’upper
a conventional form of coupling, it will be under 45 end of the rod being secured to the cap I55 in any
stood that various other means and instrumen
suitable manner such, for example, as the man
talities therefor may be provided such, for exam
ner illustrated.
7
ple, as the arrangement shown on Fig. 16 in
There is also secured to the casing I52 an an
which the sections of tubing are held together
nular member I69 adapted’ to slide'freely within
by a plurality of bolts or studs I39 rotatably se 50 the magnetometer support it and having an
cured, as by the pins or bolts I4I, to the sup
aperture therein adapted to receive the wire or
ports I42 attached to one of the tubular sections.
rod I‘II whereby the casing I53 is supported dur~
Attached to the other tubular section is a sup
ing the assembly of the instrument and there
port I 43 having a recessed portion therein adapt
after within the magnetometer support by the rod
‘ed to receive the bolt I39 whereby the tubular 55 I‘II attached in any suitable manner to the plates
members may be clamped together by the nut
I69 and I'M secured to the casings I52 and I53
Hi4 threaded on the stud I39, a washer M5 being
respectively. The casing I 53 is also provided with.
provided preferably between the nut and the
an annular member H5 secured thereto and
member I 43.
adapted to slide freely within the magnetometer
A metal insert I46 is ?tted within the end of
support whereby the casing I53 is maintained in
one of the tubular members and preferably weld
a predetermined vertical position within the sup
ed or brazed thereto as at 14?, the insert being
port. The casing I53 is also provided with a water
, provided with a shoulder Hitadapted to engage
gland or stop Illa‘ Within which is disposed the
the end of the other of the tubular members as
rubber core H1 in the manner generally similar
the tubular members are clamped together by 65 to the arrangement of the rubber core I54 Within
the bolts I39. The member I 45 also includes a
the gland I55. Within each of the casings I52
circular portion I49 adapted to engage the inner
and I53 is arranged a search or magnetometer
cylindrical portion of the other of the clamped
coil comprising a large number of turns of ?ne
members in closely fitted relation thereby to in
wire Wound about a rod composed of iron or- a
sure a watertight joint as the members are
material known in the art as Perm'alloy having a
clamped together. A suitable aperture I5I is
composition of substantially 8'71/e% iron and
provided within the member I 45 to permit the
121/2% nickel. It has also been found desirable to
?ow of water therethrough.
I
lash the cables I54 and I55 to the magnetometer
When the magnetometer support I I] has been
support generally in the manner of Fig. 21 by
placed in position within the bed of a body of 75 means of a suitable cord or nonmagnetic wire I78
is additionally moved downward the pin H9
2,405,595
12
11
the lower end of the magnetometer support and
on opposite sides thereof during the jetting oper
ation. It will, of course, be understood that when
and prevent damage thereto as a result of tidal
the arrangement of Fig, 1'? is employed the mag
currents or other disturbances of the water.
On Fig. 17 is disclosed an alternative arrange CI netometer support is provided with a tapered end
or cap 22! to prevent the entrance of mud and
ment in which the jetting is accomplished by two
silt within the magnetometer support as water
pipes or tubes I19 and NH provided with cou~
is forced under pressure through the jetting tubes
plings I82 and I83 for attachment to the pipes
H9 and IBI.
I84 and I85 respectively. The pipes I84 and I85
thereby to maintain the cables I54 and I55 in
close proximity to the bed of the body of water
are provided with a T I86 and I8? respectively
to which is secured the ?exible pressure tubes
I88 and I89 as by the hose clamps I9! and £92.
As more clearly shown on Fig. 19 the T I85 is
provided with a plug I93 having a tapered portion
I94 thereon adapted to coact with the comple~
mentary tapered portion of a member I95 rotat
ably mounted as at I96 to the support 53? 58
cured to a circular ?ange I98, the flange iBS
being secured to the lower portion of the jetting
tool I99 in any well known manner. There is
provided within the member I95 an aperture 295
adapted to be brought into alignment with an
aperture within the plug I93 when the plug is in
alignment with an aperture 202 within the sup
port I!" whereby a pin 253 may be inserted
through the member I95, the plug I 93 and into
the support I91 thus providing an arrangement
When the magnetometer or search coils I52 and
E53 and the support 25‘! therefor have been jetted
to a predetermined vertical position within the
bed of a body of water, the flow of water through
the tubes I59 and I8i is interrupted by closing the
valve I8, Fig. 1 or by stopping the pump I5, as
the case may be, and the pin 293 associated with
the jetting tube I79 is Withdrawn thereby dis
connecting the upper end of the jetting tube I79
from the plate I93 of the jetting tool. The tube
lid is now withdrawn by the hose I88 or, if de
sired, by hauling in or pulling upward on a. line
or cable secured to the tube I84 or the T connec
tion I35. As the T and jetting tube move up
ward, the inclined portion I94 of the plug mem
ber I93 causes the latch I95 to be moved to the
position shown in dashed outline on Fig. 19. As
the jetting tube I19 moves upward, the rings 2I9
and 225 are released and, as the tube I79 contin
for detachably supporting the jetting tool by the
plate I98. The pin 283 associated with each of
ues its movementupward, the rings 2M and 2I5
the jetting tubes is preferably formed at the 30 are released. The pin ‘293 associated with the
upper end thereof into an eye to which is at
jetting tube IN is now removed and the tube I8I
tached a cord or wire 29d adapted to be ‘withmay be withdrawn together with the ?exible rods
drawn from above the surface of the water after
or wires H2, 253, 2H and 2I8‘ and the rings at
the jetting operation has been completed and
tached thereto.
thereby release the jetting tubes from the 35
The clamps 2% are now operated to the release
plate I98.
position by means of the release levers provided
The gradiometer support 251 may be generally
at the upper end of the jetting tool and the jet
similar to the support shownon Fig. 21 and pro
ting tool is withdrawn as by the aforesaid der
vided with a pair of magnetometer or search
rick. The lower end of the jetting tool, it will be
coil-s such, for example, as the coils I52 and I53 40 noted, is provided with a slot 222 extending to the
of Fig. 21 having a pair of cables I54 and I55 ex
lowermost end of the tube I99 and-continuing
tending therefrom and passing through a suitable
through the annular member 258 connected
cap 205 secured to the upper portion of the mag
thereto whereby the cables I55 and I55 and the
netometer support. The clamps 296 are generally
magnetometer or search coils I 52 and I53 at
similar to the clamps ‘I8 of Fig. 6, and are rota*- .1; tached thereto are not disturbed as the tube mem
ably and slideably supported by the bearing mem
ber £99 is withdrawn.
bers I98 and 298 af?xed in any suitable manner
Briefly stated in summary, the present inven
to the tubing of the jetting tool, the clamps being
tion provides an arrangement in which the in
adapted to be released by release levers either in
stallation of magnetic detecting devices in pre
the manner of Fig. 3 or Fig. 6. A clamping bolt so determined positions within the bed of a body of
209 is provided in each of the clamp members 296
water may be accomplished quickly, economically
for maintaining the magnetometer support in
and with a high degree of accuracy and in which,
sealed relation to the jetting tool during the jet»
if desired, the services of a submarine diver are
ting operation.
not required, either in connection with the in
Secured to the jetting tube ISI in any suitable
stallation of the supports for the devices or for
manner as by brazing or welding the parts to
arranging the magnetic detecting devices within
gether is a- strap member or bracket 2“ having
the supports.
' an aperture in each end thereof to which are se
cured the ?exible rods 2 i 2 and 2 I3.
The rods 2 I 2
While there are shown and described herein cer
tain preferred examples of the invention which
and H3 have attached thereto the rings 2M and 60 give satisfactory results, it is to be understood
2I5 respectively of su?icient size to permit the
that this has been done for purposes of disclosure
tube I19 to slide easily through the rings. There
and that many other and varied forms and uses
is also secured to the tube l8l a strap member or
will present themselves to those versed in the art
bracket 2 I6 having apertures therein to which are
without departing from the invention, and the
attached the flexible rods or wires 2 I‘! and 218 of 65 invention, therefore, is not limited either in struc
somewhat shorter length than the rods M2 and
ture Or in use except as indicated by the terms
2I3, a ring 2I9 being amxed to the end of the rod
and scope of the appended claims.
2|‘! and a ring 229 being similarly amxed to the
The invention herein described and claimed
end of the rod 2I8. An arrangement is thus pro
may be manufactured and used by and for the
vided in which, by arranging the tube I19 within 70 Government of the United States of America for
the rings 2M, 2I5, 2I9 and 229 in the manner
governmental purposes without the payment of
illustrated on Figs. 17 and 20, the jetting tubes H9
any royalties thereon or therefor.
and I8I are releasably secured to the magnetom
What is claimed as new and desired to be se
eter support 261 in such a manner that the lower
cured by Letters Patent of the United States is:
1, A ‘device of the character disclosed for ar
ends of the jetting tubes are maintained adjacent
2,405,595
13
14
ranging a magnetometer support within the bed
of a body of water, said support having an aper
ture therein, the combination of a tubular mem
ber sealed at the upper end thereof and having
ing said support to the tubular member in sealed
relation thereto, means for forcing Water through
a water inlet connected thereto, means for de
body of water thereby to cause said support to be
jetted to saidvertical position and depth with
tachably securing said support in sealed relation
said tubular member and said ori?ce while the
support is in engagement with the bed of said
to said tubular member, means for forcing Water
in said bed, and means including a plurality of
release levers and cam devices controlled thereby
adapted to be operated at the surface of the
to be embedded within the bed of said body of
Water for releasing said clamping means with
water to a predetermined depth with the axis of
out displacing said support from its position in
the bed.
the support vertical, and means operable at will
from the surface of the water for detaching the
6. In a device of the class described, the com
tubular member from said support without dis
bination of a jetting tool comprising a plurality
turbing the axis of the support from the vertical 15 of assembled tubular members, means for as
or changing the ‘depth to which the support has
sembling said tubular members in alined rela
been embedded within said bed.
tion, a ?ange member secured to one end of the
2. In a device for installing a magnetometer
assembled tubular members, a tubular support
support within .the bed of a body of water, said
having an ori?ce in the lower end thereof, a
support having an aperture at the lower extrem
?ange secured to the opposite end of said sup
port adapted to be clamped to the ?ange mem
ity thereof, the combination of an installing tool,
through said inlet and through said aperture
within the support thereby to cause the support
means for detachably securing said installing»
tool to said magnetometer support, means for
causing water to ?ow from the installing tool
through the aperture within said support while
the support is resting on the bed of said body of
water thereby to cause the support to be set ver
tically to a predetermined depth within said bed,
means for arresting the ?ow of water from said
installing tool and said aperture when the sup
port has been set vertically at said predetermined
depth within the bed, and means adapted to be
controlled from the surface of the water for dis
connecting the installing tool from said mag
netometer support without disturbing the setting
of the support within the bed.
3. A jetting tool for the installation of a tubular
support within the bed of a body of water,
means for releasably clamping the support to
said tool, a ?exible tube operatively connected to
said jetting tool through which water is adapted
to ?ow, means for forcing water through said
ber secured to said assembled tubular members,
means for clamping said, ?ange to said ?ange
member, means for forcing a stream of water
through said tubular members and said ori?ce
thereby to jet the support to a vertical position
and a predetermined distance within the bed of
a body of Water, and means including a plurality
of cam devices operable from the surface of the
water for releasing said clamping means when
the tubular support has been jetted a predeter
mined distance within said bed without displac~
ing the support from its position.
'7. In a device of the class described, the com
bination of a jetting tool comprising a plurality
of lengths of assembled tubing, means for as
sembling said lengths of tubing i'n alined rela
tion, a ?ange member secured to one end of the
assembled tubing, a tubular support having a
reduced ori?ce in the lower end thereof through
which water is adapted to flow, a ?ange secured
to the opposite end of said support adapted to
be clamped to the flange member secured to said
assembled tubing, means for clamping said ?ange
?exible tube and said tubular support as the sup
port rests on the bed of the body of Water there
by to cause the support to enter the bed, means ‘ to said ?ange member, means for forcing a
for discontinuing the ?ow of water when the
stream of water through said assembled tubing
support is vertical and has entered the bed a pre
and the ori?ce thereby to jet the support to a
predetermined position within the bed of a body
determined distance, and means operable from
the surface of the water for quickly detaching
of water, means for arresting the flow of said
said jetting tool from the tubular support with- " stream of water through said ori?ce, means in
out displacing the support from its position in
cluding a plurality of cam devices operable from
the bed.
the surface of the Water for releasing said clamp
4. In a device of the character disclosed for
ing means when the tubular support has been
jetting a tubular support to a vertical position
jetted‘ a predetermined distance within said bed,
and a predetermined depth within the bed of a
and means for checking the return ?ow of mud
body of Water, a tubular member having one end
and silt through said ori?ce when said clamp
thereof adapted to be sealed to said support,
means for clamping said support to the tubular
member in sealed relation thereto, means for
forcing water through said tubular member and
the support while the support is in engagement
with said bed thereby to cause the support to be
jetted to said vertical position and depth with
in the bed, and means including a plurality of
release levers adapted to be operated at the sur
face of the Water for releasing said clamping
means without disturbing said support from its
position in the bed.
5. In a device of the character disclosed for
jetting a tubular support to a vertical position '
and a predetermined depth within the bed of a
body of water, a tubular member having one end
adapted to be sealed to said support and a con
tracted ori?ce in the other end thereof through
which water is adapted to ?ow, means for clamp
ing means are released.
'
8. In a device of the class described, the com
bination of a tubular member, a tubular‘ support
' having an aperture in the lower end thereof,
means for releasably clamping said support in
sealed relation to said tubular member, means
for arranging said support and tubular member
in a vertical position with the tubular support
resting on the bed of a body of water, means
for forcing a stream of Water throughv said tubu~
lar member and the aperture within said support
thereby to cause the support to enter said. bed,
and means arranged above the surface of said
body of water for releasing the clamping means
when the support has entered the bed of the
body of water to a predetermined depth, with
out, displacing the axis of the support from the
vertical position thereof or changing the depth
2,405,595
15
to which the support has entered the bed of the
body of water.
9. In a device of the character disclosed for jet
ting a magnetic detecting device within the bed
of a body of water, a tubular support adapted to
receive said magnetic detecting device and hav
ing a ?anged portion at the upper end thereof, a
tapered cap having an ori?ce therein secured
to the lower end of said tubular support, a tubu
lar member having a ?ange at the lower end
thereof adapted to engage said ?anged portion of
the tubular support, a plurality of L shaped
clamping members having rotatable cam devices
respectively secured thereto adapted to releas
ably lock the clamping members in a predeter
mined clamping position, a plurality of means
secured to said tubular member for slideably and
rotatably supporting said clamping members, a
16
of‘ ?exible rods attached thereto adapted to en
gage said tubular support on opposite sides there
of, an annular member secured to each of said
?exible rods adapted to receive and slideably
engage the other of said jetting tubes whereby
the jetting tubes are maintained in predeter
mined spaced relation on opposite sides of said
tubular support when the other of said jetting
tubes is arranged within said annular members,
means for forcing water through said jetting
tubes thereby to cause the magnetometer support
to be jetted within the bed of said body of water,
means for releasing said other of the jetting
tubes from said plate whereby the tube may be
15 withdrawn from said annular members when the
magnetometer support has been jetted within
said bed, and means for releasing said one of the
jetting tubes from said plate when said other of
the jetting tubes has been withdrawn from said
surface on one of said supporting means adapted
to coact with said cam devices and releasably 20 annular members.
12. In a device for jetting a tubular support
maintain said clamping members in said clamp
within the bed of a body of water, the combina
ing position, a plurality of bolts supported by
tion of a pair of jetting tubes, a jetting tool re
said clamping members adapted to clamp the
leasably clamped to said support and adapted to
?anged portion of said tubular support to the
guide the support within the bed of the water,
?ange of said tubular member in watertight rela
means for releasably securing said tubes to said
tion therewith, means for forcing water through
jetting tool, means for releasably securing said
said tubular member and said ori?ce while the
jetting tubes to the support, means for forcing
tubular support is in engagement with said bed,
water through said jetting tubes while the sup
and means controlled from the surface of said
body of water for actuating said cam devices to 30 port is being guided into said bed by said jetting
tool, means for'releasing one of said jetting tubes
a release position and for thereafter rotating said
from said jetting tool whereby the jetting tube
cam devices and clamping members suf?ciently
may be withdrawn from engagement with the
to disengage said tubular member from said tu
support when the support has been jetted in a
bular support when the tubular support has been
vertical position to a predetermined position
jetted a predetermined distance within said bed.
within said bed, means effective as said one of
10. A jetting tool of the character disclosed for
the jetting tubes is withdrawn for releasing the
planting a magnetometer within the bed of a body
other jetting tube from the support, means for
of water comprising atubular member sealed at the
thereafter disengaging said second jetting tube
upper end thereof and havingr a water inlet con
from the jetting tool, and means controlled from
nected thereto, a tubular support for said mag
the surface of the water for disengaging said
netometer adapted to be connected to said tubu
jetting tool from said support without displacing
lar member in alined relation thereto, a plurality
said support from its position within said bed.
of devices for releasably clamping said tubular
13. A tool for installing a magnetometer sup
support to said tubular member, a tapered cap
port within the bed of a body of water compris
having a contracted ori?ce therein secured to
ing a tubular member, a clamping mechanism
the lower end of said tubular support, means for
secured to said tubular member adapted to re
forcing water through said inlet and said ori?ce
leasably clamp-the tubular member to said sup
thereby to jet the tubular support to a predeter
port, a plurality of jetting tubes releasably se
mined position within the bed of the water, a
plurality of release levers operatively connected 50 cured to said tubular member and said support
and adapted to emit a plurality of jets of water
to said clamping devices adapted to be actuated
into the path of travel of the magnetometer sup
to the released position from the surface of the
port as the support is jetted into the bed of said
water, means for locking each of said release
body of water, means including a plurality of
levers in a predetermined clamping position
?exible tubes respectively connected to said jet
thereof, said locking means comprisin g a movable r
ting tubes for causing said jets of water to be
member slideable with respect to said tubular mem
forced from the lower ends of the jetting tubes,
ber and supported thereby, and means including
a pair of magnetometer coils disposed within said
a plurality of rotatable supports respectively as
support and having a plurality of submarine
sociated with each of said release levers for caus
cables extending therefrom adapted to establish
ing said clamping devices to be released by said
release levers as the release levers are moved to
a released position.
11. A device of the character disclosed for jet
ting a magnetometer within the bed of a body
of water comprising a tubular member, a tubular
support for said magnetometer adapted to be
clamped to said tubular member, said support
having a tapered cap adapted to seal the lower
end thereof, means including a plate secured to
said tubular member for releasably clamping said
support to the tubular member, a pair of jetting
tubes releasably secured to said plate and having
the lower ends thereof adjacent said tapered cap,
a plurality of brackets secured to one of said
jetting tubes, each of said brackets having a pair
an external electrical connection to said coils, a
cover secured to the upper end of said mag
netometer support having an aperture therein
through which the submarine cables are adapted
to pass, a recessed portion within said tubular
member adapted to receive said cables and per
mit the withdrawal of said tool without disturb
ing the cables, means controlled from the surface
of the water for disengaging said jetting tubes
in succession from said tool when the mag
netometer support has been jetted within said
bed, and means operable from the surface of the
water for disengaging the tool from said support
when said jetting tubes have been disengaged
from said tool.
2,405, 595
17
14. In a device of the character disclosed for
installing a magnetometer array within the bed
of a body of water, the combination of a tubular
member, a tubular magnetometer support having
a contracted ori?ce in the lower end thereof, a
?ange member secured to the upper end of said
18
rotatably supporting .said clamping devices, a
water inlet secured to said tubular member,
means for forcing water through said inlet and
said contracted ori?ce thereby to jet the support
Within said bed, and means including a plurality
of levers secured to the upper end of said tubular
support, a complementary ?ange secured to the
member for slideably and rotatably actuating said
lower end of said tubular member adapted to
clamping devices to a released position such that
engage said ?ange member, said complementary
the tubular member may be Withdrawn from the
?ange having a plurality of recessed portions dis 10 magnetometer support when the support has
posed about the periphery thereof, a plurality of
been jetted to a predetermined position within
L shaped clamping devices arranged within said
said bed.
I
recessed portions of said ?ange adapted to clamp
JOSEPH F. G. MILLER.
the ?ange securely to said ?ange member, means
RICHARD MACHENRY.
secured to said tubular member for slideably and 15
Документ
Категория
Без категории
Просмотров
0
Размер файла
2 044 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа