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Патент USA US2409236

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35; 35-
K. H. WILCQXON
2;‘w9233
SWEEP WIRE PASSING DEVICE
Filed June 1, 1943
.
2 Sheets-Shae’; 1
32
.IINVENTOR. 33
Ks nna’th HiNi'lc. c: x :1 r1.
HIS ATTORNEY
2,409,233
K H“ w uh c O x O N
SWEEP WIRE PASSING DEVICE
Filed June 1, 1943
2 Sheets-Sheet 2
I
INVENTOR.
Kenne'lth I-LW-ilau xn‘i'l.
BY
HIS ATTORNEY
Patented Oct. 15, 1946
2,409,233
UNITED STATES PATENT
OFFICE
2,409,233
SWEEP WIRE PASSING DEVICE
Kenneth H. Wilcoxon, Cabin John, Md.
Application June 1, 1943, Serial No. 489,269‘ '
7 Claims.
(01. 102-15)
(Granted under the act of March 3, 1883, as
amended April 30, 1928; 370 0. G. 757)
1
2
The invention relates to improvements in anti
minesweeping devices and more particularly to
Figure 8 is a transverse sectional view taken
substantially in the line 8—-8 of Figure '7.
a device for permitting the passage of a sweep
Figure 9 is a transverse sectional detail view
cable through a, mine mooring cable without in
taken substantially on the line 9-9 of Figure '7.
In the drawings, which for the purpose of
illustration show only a preferred embodiment
of the invention, and wherein similar reference
terrupting the continuity of the mooring cable.
7 An important object of the present invention
is to provide a sweep cable passing device with
means orienting the device depending on the di
characters denote corresponding parts through
rection of travel of the sweep cable so that the
out the several views, the letter A designates a
sweep cable will be properly introduced to the H) buoyant mine, connected to an anchor B, by a
passing device.
mooring cable 0 which is provided with the im
Another object of the invention is the provision
proved device D for passing a sweep wire E.
of a device to be interposed in the mine moor
The device D includes an elongate frame l5
ing cable and which will permit substantially
unobstructed passage of a sweep cable there
through.
'
A further object is to provide a device of the
character described which will operate to per
mit the passage of a sweep cable at a relatively
high speed through the mooring cable.
having left and right side’ members [6, ll, ‘rig
15
idly held inspaced generally parallel‘relation,
at the lower end portion l8 of the frame, as by
spacers i9, 20 welded between the side mem
bers. Formed integrally with the spacer 20 are
spaced apart forwardly and downwardly inclined
20 supports 2|, 22 providing a forwardly opening
The invention also aims to provide a device
notch 23.
as described which will operate after long sub
Pivotally mounted for swinging movement
mergence in salt water and which is not greatly
about an axis in rearwardly spaced parallel re
affected by the accumulation of sea growths
lation to the frame D, as by a pintle 24 extend
25 ing through the spacers l 9, 2B, is a combined lever
thereon.
The invention additionally has for an object
and latch member 25. This member 25 includes
the provision of a device of the character de
a latch 26 normally extending across the open
scribed which will function with heavy loads on
end of the notch 23 and a lever 21 for swinging
the mine mooring cable.
the latch 26 to the released position illustrated
Other objects and advantages of the inven 30 by the broken lines in Figure 8. A shoulder
tion will become apparent during the course of
28 on the member 25 engages the side member
the following detailed description, taken'in con
IE to limit swinging movement of the latch be
nection with the accompanying drawings, form
yond its released position. The latch 26 is pro-l
ing a part of this speci?cation, and in which
vided at its forward end with an inclined cam
drawings,
surface 29 serving to automatically open the
Figure 1 is a, side elevational view of the de
vice, interposed in a mine mooring cable, a por
tion of which has been broken away, and illus
latch to permit movement of a cable into the
notch 23. Encircling the pintle 24 is a‘helical
trating the relationship of parts upon the pas
frame side member l5 and its other end bear
coil spring 30 having one end bearing on the
sage of a sweep cable into the device.
40 ing on a vertical web portion 3! of the member
Figure 2 is a side elevational view of the device
25, for urging the latch 26 toward the closed
illustrating the relationship of parts just prior
to passage of the sweep cable from the device.
Figure 3 is a front elevational view of that por
tion of the device which is attached to the mine.
Figure 4 is a side elevational view of the de
position shown in full lines in Figure-8. The side
members IS, IT include downwardly and rear
wardly inclined lower end portions 32, 33 which
are diagonally outwardly bent as shown in Fig
ures 3-5.
vice and showing the normal relationship of its
Rigidly secured to the inner faces of the side
parts.
members l6, H, as by welding, are transverse
Figure 5 is a horizontal sectional view taken
supports 34, 35 provided between their rear ends
substantially on the line 5—-5 of Figure 4.
50 with a suitably ?xed spacer block 36 de?ning a
' Figure 6 is a view partly in front elevation
forwardly opening channel 31. These supports
and partly in section, taken substantially on the
34, 35 include laterally extending forward end
line 6-6 of Figure 4,
portions 38, 39 providing-convergent guide sur
Figure 7 is a central vertical sectional view
faces leading to the channel 31. Transverse
aligning notches 40 are provided in the upper
of the lower end of the device.
2,409,233
sides of the supports 34, 35 as shown in Figures
4
parts is that shown in Figure 4. The sweep wire,
upon engagement with the mooring cable, moves
forwardly and upwardly along the mooring cable
Pivotally mounted between the side members
to the chain 53. When the sweep wire reaches
l6, IT, at the upper end portion of the frame
I5 is a link 4| connected to the mine A by a Q11 the junction of the anchor cable and chain, it
hesitates because of the in?exibility of the joint.
relatively short length 42 of the mooring cable
Upon passing this juncture, the sweep cable tends
C. In the example shown in-Figures 3 and .4,
to accelerate vdue to the resultant increase in
the opposite sides of the link 4| are provided
tension in the sweep cable. A sufficient length of
with integral stub shafts 43 terminating in
chain is provided to check excessive acceleration
squared ends 44.
of the sweep wire before the passing device is
Means is provided for orienting the frame l5
reached. The device having been oriented to the
with respect to the path of travel of a sweep’
position shown in Figure 1, by the trailing action
cable. Fixed between arms 45,46, as by screws
of the vane 48, upward pressure of the sweep
41, is a rudder or vane 48 formed of sheet ma
wire on the lever 21 swings the latch 26 to its
terial, and provided at its rear edge with di
released position, as shown by broken lines in
verging ?ns 49, 50. The arms 45, 46 are pro
Figure 8, to permit movement of the sweep cable
vided at their forward end portions with square
E to the position shown in Figure 1. In this po
openings 5| snugly receiving the squared‘ ends
44 of the stub shafts 43 whereby the vane is fixed Q ' ,sition, the sweep cable E produces tension in the
for swinging movement with the link 4|. When 20 cable 52 attached to the anchor B, and acts
through the upper portion of the chain‘53, the
the device is to be stored, the vane 48 may be
frame l5 and the cable 42 to pull the mine A for
swung to the position shown by broken lines in
wardly and downwardly. As the sweep cable E
Figure 4.
.
moves forwardly in the direction of the ‘arrow
The mooring cable C also includes a relatively
long length 52 of cable attached to the anchor 25 in Figure l, the angularity of the anchored cable
52 increases, and the drag of the anchor returns
B and terminating at its upper end in a short
the chain 53 to the notch 23, wherein it is held
length of chain 53. The link 54 at the free end
4 and 5.
of the chain is ?xed to a screw 55 threaded into
the shank 55 of a clevis 51. This shank 56 is
by the latch 26.
l
offset connecting element 60 adapted to bridge
vertical position due to the boyancy of the mine
tween the connecting elements 58, 60 slightly
greater than the distance between the supports
2|, 22 and the supports 34, 35, upon tensioning
of the chain by the bowed spring 59.
invention herein shown and described without
The load on the moving cable is then carried by
the support 2 I, 22 at the lower end of the frame
square in cross section so as to non-rotatably ?t
l5. Further forward movement of the sweep
within the channel 31. The clevis 51 includes a'
cable E pulls the clevis 51 forwardly and out of
transverse cylindrical portion 58 of a length to
the channel 31, the relationship of parts now being
bridge the channel 31, and adapted to fit in the
substantially as shown in Figure 2.
transverse notches 40. Pivotally secured to the
Upon clearance of the sweep cable from the
clevis is one end of a bowed leaf spring 59 pro 35
device D, the mooring cable returns to its original
vided at its opposite end with a rigid laterally
A, and the spring 59, held ?rmly seated at its lower
the notch 23 and rest on the supports 2 I, 22.
end 6E) by the chain 53, returns the shank of the
As shown in Figure 9, this connecting element
60 includes a rounded free end Bl provided with 40 clevis 5'! to the channel 31, as shown in Figure 4.
The equipment is now in readiness for another
a diagonal slot 62 within which an intermediate
passing operation. .
link 63 of the chain 53 is rigidly secured, as by
Various changes may be made in the form of
welding. As shown in Figure 4, the distance be~
While the sweep wire may engage the mooring
cable at speeds as high as 20 or 25 knots, the
relative speed during the passing operation is not
so high, because the bight formed in the mooring
cable is carried along with the sweep wire until
the mooring cable has been passed. The normal
load on the mooring cable due to the buoyancy
of the mine is increased when it is laterally
departing from the spirit of the invention or the
scope of the following claims'
This invention may be manufactured and/or
used by or for the Government of the United
States of America without the payment of any
royalty thereon or therefor.
I claim:
7
1. In ‘equipment of the character described, a
mooring cable including a mine cable and an
anchor cable, and a device including a rigid
elongate part and a resilient elongate part, said
parts being connected one to the mine cable and
drawn through the water for “a distance while
the other to the anchor cable, means separably
the sweep wire is slidingv up the mooring cable
connecting said parts together at one zone, and
and passing through the device D.
auxiliary means distinct from said ?rst-men
This lateral motion orients the passing device
to the proper position for entrance of the sweep 60 tioned means and operable to additionally sepa
rably connect said parts together in a zone spaced
wire due to the trailing action of the rudder or
from said ?rst-mentioned zone to permit the pas
vane 48. During the passing operation, advan
sage of a sweep cable‘ therebetween without inter
tage is taken of the angle produced in the moor
ing cable by this lateral motion to facilitate the
release and re-engagement of parts.
rupting the continuity of the mooring cable, said
resilient part flexing upon separation of either
one of said connecting means and urging said
separated connecting means into connected rela
in the mooring cable above the point of contact
tion.
of the sweep wire therewith, but the nearer the
2. In equipment of the character described, a
device is located above the path of travel of the
sweep wire, the more e?ective it will be in suc 70 mooring,’ cable including a mine cable and an
anchor cable, and a device including a rigid elon
cessfully passing an enemy sweep wire before the
gatepart and a resilient elongate part comprising
cutters on the sweep wire reach the mooring
The passing device D must of course be ?tted
a bowed leaf spring, said parts being connected
one to the mine cable and the other to the anchor
The operation of the device D will now be de
scribed, assuming that the initial relationship of 75 cable, means separably connecting said parts
cable.
.
.
2,409,233
5
6
together at one zone including a connecting ele
between said supports, a main connecting element
ment at one end portion of said bowed leaf spring,
and additional means distinct from said ?rst
mentioned means and separably connecting said
parts together in a zone spaced from said ?rst
mentioned zone, said additional means including
a connecting element at the other end portion of
said bowed leaf spring, said bowed leaf spring
?exing upon separation of either one of said con
?xed to the anchor cable and normally bridging
said spaced main supports, an auxiliary connect
necting means and urging said separated con
necting means into connected relation.
ing element ?xed to the anchor cable and nor
mally bridging said spaced auxiliary supports, a
spring tensioning the anchor cable between said
main and auxiliary connecting elements, the dis
tance between said connecting elements upon
tensioning of the anchor cable being at least equal
N
3. In equipment of the character described, a
mooring cable including a mine cable and an
anchor cable, a device including parts connected
one to the mine cable and another to the anchor
cable, means separably connecting said parts to
gether in spaced zones to permit the passage of
a sweep cable therebetween without interrupting
the continuity of the mooring cable, said means
including a latch releasably securing said parts 20
to the distance between said main and auxiliary
supports, a latch releasably securing the anchor
line to said member in the vicinity of said main
support, means for releasing the latch upon move
ment of a sweep cable upwardly between the
anchor cable and said elongate member, and
means for orienting said elongate member upon
engagement of a sweep cable with the anchor
cable to guide the sweep cable between the anchor
cable and the elongate member.
6. In equipment of the character described, a
together at one of said zones, a cam disposed in
mine cable, an elongate member having an upper
the path of travel of the sweep cable for releas
end portion attached to the mine cable, a lower
end portion provided with a main support, and an
ing the latch, and a spring urging the latch to
ward its closed position.
intermediate portion provided with an auxiliary
4. In equipment of the character described, 25 support, an anchor cable, a main connecting ele
a mine cable, an elongate member having an
ment ?xed to the anchor cable inwardly of its
upper end portion attached to the mine cable, a
upper end portion for releasable connection to
lower end portion provided with a main support,
the main support, an auxiliary connecting ele
and an intermediate portion provided with an
ment attached to the anchor cable at its upper
auxiliary support, an anchor cable, a main con 30 end portion for releasable connection to the aux~
iliary support, a spring tensioning the anchor
necting element ?xed to the anchor cable in
wardly of its upper end portion for releasable
cable between said main and auxiliary connect
connection to the main support, an auxiliary con
ing elements, the distance between said connect
necting element attached to the anchor cable at
ing elements upon tensioning of said cable being
its upper end portion for releasable connection 35 at least equal to the distance between said main
to the auxiliary support, a spring tensioning
and auxiliary supports, a latch releasably securing
the anchor cable between said main and auxiliary
the anchor line to said member in the vicinity
of said main support, and means for releasing
connecting elements, the distance between said
connecting elements upon tensioning of said cable
said latch upon movement of a sweep cable up
being at least equal to the distance between said
wardly between the anchor cable and said elongate
main and auxiliary supports, a latch releasably
member.
securing the anchor line to said member in the
'7. In equipment of the character described, a
vicinity of said main support, means for releas
mooring cable including a mine cable and an
ing said latch upon movement of a sweep cable
anchor cable, a device connecting the mine cable
upwardly between the anchor cable and said 45 and the anchor cable, said device upon proper
elongate member, and means for orienting said ‘
orientation relative to the direction of travel of a
elongate member upon engagement of a sweep
sweep cable permitting the passage of the sweep
cable with the anchor cable to guide the sweep
cable through the mooring cable without inter
cable between the anchor cable and the elongate
rupting the continuity of the mooring cable, and
50 a vane for orienting the device relative to the
member.
5. In equipment of the character described, an
direction of travel of the sweep cable, said vane
elongate member having an upper end portion
having a trailing marginal edge portion includ
ing diverging ?ns for increasing the drag and
for attachment to a mine cable, a lower end por
tion provided with spaced main supports, and an
directional effect of the vane on said device.
intermediate portion provided with spaced aux 55
iliary supports, an anchor cable normally disposed
KENNETH H. WILCOXON.
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