US1670078A - Submarine mine - Google Patents

Submarine mine Download PDF

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Publication number
US1670078A
US1670078A US119044A US11904426A US1670078A US 1670078 A US1670078 A US 1670078A US 119044 A US119044 A US 119044A US 11904426 A US11904426 A US 11904426A US 1670078 A US1670078 A US 1670078A
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United States
Prior art keywords
anchor
depth
chamber
flotation
flotation chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US119044A
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English (en)
Inventor
Pratt Hartley Blyth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vickers Ltd
Original Assignee
Vickers Ltd
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Filing date
Publication date
Application filed by Vickers Ltd filed Critical Vickers Ltd
Application granted granted Critical
Publication of US1670078A publication Critical patent/US1670078A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B22/00—Marine mines, e.g. launched by surface vessels or submarines
    • F42B22/10—Moored mines

Definitions

  • the anchor 13 arrangedto come into oper'ttidfi at at depth 'ubstiritie'l ly I greater then the maximum set depth o'fthe' flotttien chamber, and the retarding devl'ce fer the drum of the Inebr'ifig stitch that during the.
  • The-lib'en ation of the flotation chamber may be effected by the well known ball an groove arrangementflin which the balls normally hold, wmemb'ejr connectedto the flotation chamber in engagementtwith j a part connect-
  • Thisy part may be consti- Y the purpose of liberating the flotation chamber fromithe'anchorafter the lapse of a predetermined interval .of time; in the event of the dept-h of sea bei ng less than the aforesaid releasing depth',-and enables the. said rod to-be moved upwards by theupward pull of vthe flotation chamber to bringthe aforesaid yreleasing. member.
  • FIGS.2' and 3 are sectional side elevail 7 I r with 'tl1is invention,,the parts being shewn the position they occupy priorto launch- ;
  • Fig,ure4 1sa section shew ng the-aforesaid fiad m r ve;
  • Y' isvthe anchor
  • C is themooring cable
  • C is tions' viewed at right angles'to one another shewmg a .mme constructed in accordance Fi gure 5i's ection shewing the aforesaid h st i r sin device t A is the flotation chamber or mine proper
  • the flotation Q f hamber or mine proper isshewn by way f example, as of'tlie j well known horned electric, type and may be provided 'withthe gswitchoperating and primer releasing mechk anisin forming. the subject matter of copending fapplication Serial No.]119,0 46,- filed I Jiine 28,'- 1926. ; This flotation c'hamberfis made s iifficieiitly strong to withstand the i hydrostatic pressure at the desired safe depth 7 which may for example be 200 metres.
  • the hydrostatic 1 setting device E is the auxiliarygwire appertaining to i this device, 1 F :is [the floodve and G is the hydrostatic releasing e c 1 g i r v
  • the flotation Q f hamber or mine proper isshewn by way f example, as of'tlie j well known horned electric, type and may be provided 'withthe gswitchoperating and primer
  • the said upper ends are provided with hoods b to protectthe horns from damage and the arms are held in, place by pins a which are carried bybrackets on the flotationchamber engage freely in holes in lugs on the saidzarms so thatwhen the flotation chamber becomes liberated from the anchor and rises slowly the said pins are withdrawn from the holes and the arms can then fall outwardly about their pivots.
  • the mooring cable C passes from' the drumC? over a roller o and a pulleyc and thence to a;spring controlled lever A on the flotation chamber, this lever operating in the manner described in the specification ofmy aforesaid concurrent patent applicationfiie 'ialflio. 119,0i6.
  • the locking pawl Ci for engaging with ratchet teeth o n the drum Cf is normallyheld in the disengaging position by a shearing pin 0 and is placed under/thev influence of a spring 0 serving,when the pin 0 is sheared, to move the :pawl G into engagement with the ratchetv teeth.
  • the said pawl is connected to a wire-,0 which in turn is coupled to tho endof the aforesaid auxiliary wire E a pper V taining to, the hydrostaticdepth setting dcv.ice D; v
  • This device comprises a drum on which the said auxiliary wire is 'wound and Jill! a locking bolt which, when the sct depth is reached, ismoved into a'position to stop the rotation of the drum.
  • the said depth sotting device is preferably constructed in [he manner described inthe specification of my oopending patentapplication Serial No] 119,045, filed June28, 1926.
  • the casing of the "device has a half boss I) whichreceivcs abolt Z ⁇ also engaging with a'half boss A on a bracket attached to the flotation chamber A; the saidcasing also has a boss l) through which and a hole in the said bracket ashearing pin r1 passes.
  • the arrangement is such that when a pull is exerted onlhc auxiliary wire E, when the set depth is reached, owing to the stoppage of the rotationof the drum on which this wire is wound. not only is the shearing pin 0?
  • theflotation chamber will" not drawn below the safe depth and Will'riot rise the na'iviiinuin set depth which may for example be lOO inetre's, that is to say stich tiines the flotation chamber will always occupy some 13033 61011 between the a rax'iinmn s'etclep'th oi, say, 100 metres and thesafe depth of, say, 2oo metres
  • the btakin'g' torque clue to the'rotation in Water of a paddle brake vatiesas the square of the rotational yelo'city. As the'lnooring c'ahle p ys out from the clrurn', its radius from the axis decreases.
  • the resultantforces actng on the anchor aft anymolnent are the algebraic sum of the following ,(1) The Weigl'it in Water the anchor with the amount of mooring cable still on resistai'ice to the rotation of pgh-t in water of the lehgt h the rum when clecreasjesand easeaewa- V Wards. (2) 'lhepullinthe nio'ori-ng' cable dine te the brake ei-fect, which is Variable and acts upwards.
  • FIG. 5 which "shows-indetail the aforesaid hydrostatic releasing dc vicefwhich is interposed between'the anchor and the flotation ychamber, the casing whichis attac hed in a watertight manner oversa holeintheanchor as shewn in.
  • Fig has clamped therein the outer portlons of two flexible diaphragms G1, G the inner. parts of which .are clamped to a sliding sleeve '9;
  • the upper diaphragm G has a larger effective area than the lower.
  • Position 1 in Figure 1 represents the mine unit sinking after the flooding valve has been opened-
  • position 2 the aforesaid hydrostatic releasing ClGVlCQCOHlQS into operation in the manner hereinbefore described to l berate the flotationchamber A from the anchor B.
  • position 2 the aforesaid hydrostatic releasing ClGVlCQCOHlQS into operation in the manner hereinbefore described to l berate the flotationchamber A from the anchor B.
  • the anchor then descends and the flotation chamber ascends as'shewn in-the positions 3 and 3
  • the speed-of ascent oftheflotation chamber is determined by the resultant effect of the force of theflotation chamber buoyancy actmg upwards and the resistance of the aforesaid paddle brake on the mooring cable .drum plusthe weight of the mooring cable paidoutacting downwards.
  • the effect of the brake is such that the motion of the flotation chamberis at first upwards and finally downwards, the total movement be ing well within the limits of the maximum set depth and the safe depth.
  • the remaining active force on the flotation chambe:- is its “buoyancy "acting upwards.
  • the resultanteffect f all these forces on the flotation chamber causes it to first move upwardsand then, as the increased weight of mooring cable makes itselffelt. downwards,
  • the said device and the auxiliary wire then fall freelyto the sea bottom leaving the ing cable.
  • a submarinemine comprising in combination a flotation chamber, an anchor, a
  • a depth setting hydrostatic device carried by said flotation chamber means whereby, when a predetermined depth'has been reached during the ascent of, the flota-i bination ,a flotation chamber, an anchoga V hydrostatic deyice norn ia'lly connecting said chamberand "anchor together and arranged to release sa d chamber fro-in the anchor when the unit composed 'ol' these parts has sunk ton depth substantially exceeding the maximum set depth at which it is ever desired to anchor the flotationchamber beneath the surface of the water, a drum in' the anchor, a mooring cable woundon said drum and connected to sa d chamber, aretarding device'for
  • flotation chamber ensuring that the "latter will not so aw predete mi d lower d p a depth setting hydrostatic device, a casing ofthe latterldevice, a s'hearing pin connecting said cash g; to the flotationbhamber, a drum w th n said casing, a wire on said drum, a
  • a submarinemine comprisingin comhydrostatic device normal-1y connecting said 3 chamber and anchor together and arranged to release said chamber from the anchor fwhen the unit composed of these parts has sunk to 'a predetermined depth,"said unit normally (i.”e.prior to launching) ,pos'sessingf neutral buoyancy, a buoyancy chamber form'- ing. part of said anchoijand' a floodingvalve controlling a passage leading to the interior bina tion a flotation chamber, ananch'or, a
  • a submarine mine comprising in combination, a flotation chamber, an anchor, a 7 hydrostatic device normally connecting said chamber and anchor together and arranged to release said chamber from the anchor when the unit composed of these parts has sunk to a predetermined depth, said unit normally (i. e.
  • a buoyancychamber forming part of said anchor, and a flooding valve controlling a passage leading 'to the interior of said buoyancy chamber, said valve having two portions of nearly equal eflective area exposed to the sea water when of theelements claimedin claim 14,019 a e ifieunit is in the sea so thatth n ft f" pressureopens the valve to admitfsea water tosaid buoyancy chamber so. as to give said a unit substantial negative buoyancy, Y a
  • a submarine mine comprising in com-v 'bination'afiotation chamher, an anchor,v a member connected to the flotation chamber, a memberconnected tothe anchor, elements carried by one member.
  • a relea'sing'memher normally serv 7 being lessthan thedepth at which saidre-I leasing device-avould be brought into action ingto hold saidelements in theirengag ing the releasing member occupies the releasing move totheir disengaging positions, two diaposition, serves to permit ⁇ said elementsvto and a spring acting in opposition to the movement of the'releasingrmember under increase in the pressure of the sea wateron the 'diaphragms, said spring I being of such strength that when a. predetermined depth v of'inimersio'nj has been'reached the releasing member ⁇ vill".assume its position With the groove therein oppositefsaid elements'so as to; release the first two members from one another. e

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
US119044A 1925-11-27 1926-06-28 Submarine mine Expired - Lifetime US1670078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1670078X 1925-11-27

Publications (1)

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US1670078A true US1670078A (en) 1928-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US119044A Expired - Lifetime US1670078A (en) 1925-11-27 1926-06-28 Submarine mine

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US (1) US1670078A (fr)
FR (1) FR619132A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569977A (en) * 1949-05-31 1951-10-02 Grand Rapids Hardware Company Releasable float
US2721517A (en) * 1952-08-20 1955-10-25 Everly J Workman Motor dropper
US4301734A (en) * 1979-11-26 1981-11-24 The United States Of America As Represented By The Secretary Of The Navy Case mounted mooring system
US20130206028A1 (en) * 2012-02-13 2013-08-15 Robert Van Burdine Area Denial Device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569977A (en) * 1949-05-31 1951-10-02 Grand Rapids Hardware Company Releasable float
US2721517A (en) * 1952-08-20 1955-10-25 Everly J Workman Motor dropper
US4301734A (en) * 1979-11-26 1981-11-24 The United States Of America As Represented By The Secretary Of The Navy Case mounted mooring system
US20130206028A1 (en) * 2012-02-13 2013-08-15 Robert Van Burdine Area Denial Device
US8689695B2 (en) * 2012-02-13 2014-04-08 Robert Van Burdine Area denial device

Also Published As

Publication number Publication date
FR619132A (fr) 1927-03-26

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