US3505969A - Anchor - Google Patents

Anchor Download PDF

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Publication number
US3505969A
US3505969A US768778A US3505969DA US3505969A US 3505969 A US3505969 A US 3505969A US 768778 A US768778 A US 768778A US 3505969D A US3505969D A US 3505969DA US 3505969 A US3505969 A US 3505969A
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US
United States
Prior art keywords
shank
anchor
base member
base
flukes
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
Application number
US768778A
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English (en)
Inventor
Thomas S Bowers
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.)
THOMAS S BOWERS
Original Assignee
THOMAS S BOWERS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by THOMAS S BOWERS filed Critical THOMAS S BOWERS
Application granted granted Critical
Publication of US3505969A publication Critical patent/US3505969A/en
Anticipated expiration legal-status Critical
Assigned to AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO, AN IL CORP. reassignment AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO, AN IL CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: A.L. Hansen Manufacturing Company
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/38—Anchors pivoting when in use
    • B63B21/44—Anchors pivoting when in use with two or more flukes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B2021/262—Anchors securing to bed by drag embedment

Definitions

  • the disclosure illustrates an anchor for boats and ships which comprises three basic parts: a base, a shank and a pair of flukes.
  • the three basic parts are all pivoted with respect to each other (with a lost motion pivotal connection between two of the parts) so that once the anchor reaches sea bottom and the anchor line lifts one end of the shank, the other end of the shank digs into the sea bottom to restrain movement while the pivotal connection between the shank and the flukes positively forces the flukes downwardly into the sea bottom.
  • the base is U-shaped to receive the shank so that the base sinks somewhat into the hole dug by the shank and the sea bottom dug by the shank is forced against the base to further restrain movement of the anchor.
  • the field of this invention is anchors for boats and ships of all kinds.
  • anchors for small sail boats or yachts as well as anchorsfor huge ocean going vessels are fields within which the invention may be used.
  • the field of the invention is anchors wherein means is pivoted for digging into the sea bottomto provide a holding force for the anchor rather than relying on the weight of the anchor itself.
  • This invention utilizes the same three basic elements: a base member, a shank member and fluke means as the prior art but pivotally connects the three elements in a manner to insure positive digging action and permit other advantages.
  • the invention involves theprovision of a scoop or digging means on the remote end of the shank so that the force applied on the anchor line causes the shank'to pivot with respect to the base and digthe scoop into the sea bottom.
  • the shank is operatively connected to the flukes so that such movement will also positivelydirect the flukes downwardly into the sea bottom.
  • the opposed action of the scoop dig ging into the ground on the one hand and the flukes digging into the ground on the other positively insures the desired holding effect.
  • the base member is U-shaped to receive the shank and the shank is open on the digging end so that sea bottom dug by the shank is thrown against the base member resistance wall and the base member itself sinks into the sea bottom to further restrain movement of the anchor.
  • FIG. 1 is a perspective view of an anchor showing one embodiment of this invention with the shank and the flukes pivoted at a small angle with respect to the base;
  • FIG. 2 is a plan view of the anchor shown in FIG. 1 with the anchor in its closed, single plane position;
  • FIG. 3 is a side elevation view of the embodiment of FIG. 1 illustrating the anchor resting on the sea bottom with the shank scoop and flukes dug into the ground;
  • FIG. 4 is a perspective view of an anchor illustrating another embodiment of this invention again with the shank and flukes pivoted at a small angle with respect to the base;
  • FIG. 5 is a plan view of the anchor of FIG. 4 illustrating the anchor in its closed, single plane position
  • FIG. 6 is a side view of the anchor of FIG. 4 illustrating the anchor resting on the sea bottom with the shank scoop and flukes dug into the ground.
  • First embodiment thickness is greater at the base end and progressively decrease as the leg end of the base is approached.
  • the shank 12 is an elongated, oblong member having an open center portion between two parallel legs 18 and 20. One end of the shank 12 has an aperture 22 through which extends a loop of a rope or other suitable anchor line 24.
  • the other end of the shank 12 is provided with a scooplike digging means. More particularly, on both sides of such shank end a plurality of teeth 26 are cut from the shank. While this shank end is a little thicker than the end to which the anchor line is attached, it should be noted that the thickness of the shank is equal to or less than the thickness of the base member so as to be housed within the same.
  • the shank 12 is mounted for pivotal movement with respect to the base member 10 so that the teeth 26 move through an are adjacent the interior end wall 28 of the base member.
  • a pair of pins 30 each extend through a leg of the base member and into bored holes in thelegs 18 and 20 of the shank adjacent the scoop end thereof.
  • the pins 30 are secured in the base member by any suitable means, such as a press fit, but fit loosely in the holes in the shank legs to facilitate pivotal movement.
  • the flukes 14 and 16 are pivotally connected to the outer end of the legs of the base member 10. To accomplish this, the legs have projections 32 which are received in corresponding slots 34 in the fluke members. A pin 36 is secured in each fluke member bridging the slot 34 and extends through an aperture in the projection 32.
  • the flukes themselves are long slender members pointed at the outer end so that they will pierce the sea bottom when appropriately directed.
  • An operative connection is provided between the fluke members 14 and 16 and the shank 12 to effect proper positioning of the flukes. More particularly, the outer end of the legs of the base member 10 are cut away on the inside of the legs by an amount corresponding to the arm portion 38 which extends from the lower portion of the fluke members 14 and 16. Accordingly, the inner surface of the fluke member and its projecting arm 38 is substantially parallel with the inner surface of the leg of the base member 10.
  • Each fluke arm 38 is provided with an elongated slot 40 extending substantially the length of the arm.
  • a pair of pins 42 are received one in each slot 40 for reciprocal movement therein.
  • Each pin has its inner end secured to a leg 18 or 20 of the shank member 12.
  • the anchor is dropped from the boat and settles to the sea bottom in initially a flat position.
  • the anchor is designed so that no matter whether the anchor flops to one side or the other the operation will be identical (it being noted that each of the parts on one side is identical to the other side of such part).
  • the pivot pins 42 intermediate the shank ends slide in the slots 40 of the fluke arms and pivot with respect thereto to effect upward movement of the fluke arms thus directing the flukes downwardly so that the pointed ends pierce the sea bottom.
  • the base 10 is of U-shaped configuration, as the digging action of the shank scoop takes place, dug sea bottom is forced against the inner wall 28 of the base member to further resist movement. Additionally, with continued force on the anchor line and the shank scoop having pierced the sea bottom, the U-shaped base 10 sinks somewhat into the hole dug in the sea bottom. Accordingly, a continued force on the anchor line, in effect, further forces the entire anchor into the sea bottom.
  • the anchor line is moved to a position perpendicular to the sea bottom. This movement causes the shank to pivot with respect to the sea bottom about the shank scoop end. Such movement causes pins 42 to move to the end of slots 40 in the flukes and continued movement toward the vertical position will withdraw the fiukes from the sea bottom permitting easy withdrawal of the anchor. Then, the anchor is lifted vertically. Upon such vertical movement with the weight of the anchor being concentrated on the base of the U of the base member 10 the entire anchor pivots to a closed one plane position (as shown in FIG. 2) so that projections do not damage the boat upon withdrawal of the anchor and the anchor itself lies fiat in the bottom of the boat when withdrawn.
  • FIGS. 4-6 The second embodiment is illustrated in FIGS. 4-6. This second embodiment is a construction more likely to be used with heavier vessels.
  • the base member 41 is of generally U-shaped construction and comprises leg portions 48 and 50 having an enlarged base section 52 integrally secured to one end of the legs. The other end of the legs are provided with enlarged attaching sections 54 and 56.
  • the shank 43 has elongated arms 58 and 60 which extend substantially parallel to the legs 48 and 50 of the base member 41.
  • the ends of the arms 58 and 60 are integrally joined by a scoop-like digging means 62.
  • the scoop-like digging means 62 is of much greater depth than the arms 58 and 60 and thus is a more effective means of holding the anchor with respect to the sea bottom.
  • the scoop-like digging means 62 is provided with the plurality of teeth 64 on both the upper and lower surfaces thereof.
  • the other end of the arms 58 and 60 are curved inwardly and meet each other at a point wherein an anchor cable attaching lug 66 is secured.
  • the lug 66 is apertured and receives the anchor cable 68.
  • the shank is adapted to pivot so that the scoop-like digging means swings in an are within the U-shaped base member 41 and is housed within the same when the shank and the base are positioned in a single plane.
  • a pair of pins 70 extend through the legs 48 and 50 of the base member 41 adjacent the attaching sections 54 and 56 and through small spacer plates 72 and into the arms 58 and 60 of the shank member 43 inter-mediate the ends thereof.
  • the pins are secured against axial movement by any suitable means and the arms of the shank are provided with apertures slightly larger than the pins to facilitate pivotal movement of the shank.
  • the flukes 44 and 46 are also attached to the base member 41 for pivotal movement with respect thereto. More particularly, the flukes are elongated members with one end pointedand thus capable of piercing the sea bot tom while the other ends are notched to receive U-shaped mounting members 74.
  • the mounting members are secured in the fluke notches by any suitable means such as welding.
  • the attaching sections 54 and 56 of the base member are positioned within the slot of the U-shaped mounting members 74 and pins 76 extend between the legs of the mounting members 74 and through appropriately sized apertures in the attaching sections 54 and 56.
  • the pins 76 are similarly secured against axial movement by any suitable means, Acc0rdingly, both the flukes 44 and 46 and the shank 43 are pivotally mounted with respect to the base member 41.
  • an operative connection is provided between the fluke members and the shank so as to direct the positioning of the flukes.
  • the mounting members 74 are provided with elongated slots 78 in the inner leg thereof.
  • Pins 80 are fixedly secured to the leg portions 48 and 50 of the shank member and extend into the elongated slots 78 for lost motion reciprocal movement while also permitting pivotal movement between the flukes and the shank member.
  • Operation of the second embodiment is similar to the operation of the first embodiment.
  • the anchor When the anchor is dropped from the boat and it settles to the sea bottom either on one side or the other and a force is applied to the anchor line, one end of the shank 43 is lifted from its one plane position with the other parts. This movement of the shank causes pivotal movement with respect to the base member 41 about pivot pins 70 and thus forces the scoop end of the shank downwardly so that the teeth 64 dig into the sea bottom.
  • the pivot pins 80 move in slots 78 of the mounting member 74 for the flukes 44 and 46 and pivot with respect thereto thus directing the fiukes downwardly into the sea bottom. Accordingly, a dual action is provided by the shank scoop and the flukes.
  • the base 41 is of U-shaped configuration, as the digging action of the shank scoop takes place, the anchor moves slightly horizontally and the base sinks somewhat into the hole dug by the scoop to further hold the anchor against movement. While this is taking place, sea bottom disturbed by the shank scoop is forced against the base member 41 which is enlarged in depth to catch the same.
  • the anchor tends to sink deeper into the sea bottom at the base end as well as at the fluke end where the shank forces the fiukes downwardly.
  • the anchor of the second embodiment is released similar to the anchor of the first embodiment by positioning the line Wertically above the anchor. This causes the anchor to pivot about its scoop end and withdraws the fiukes from the sea bottom so that further vertical lifting of the line will remove the entire anchor from the sea bottom. With the weight being concentrated at the base of the anchor, the anchor tends to pivot to its closed one plane position as it is vertically lifted. Accordingly, since the anchor scoop is housed within the base member there are no projections to damage the boat upon lifting the anchor into the boat. Furthermore, the anchor lies relatively flat in the boat.
  • An anchor comprising (a) a base member
  • said fluke means comprises a fluke member pivotally secured to each of the legs of said U-shaped base member and said shank member extends between said fluke members and is pivotally connected to each.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Piles And Underground Anchors (AREA)
US768778A 1968-10-18 1968-10-18 Anchor Expired - Lifetime US3505969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76877868A 1968-10-18 1968-10-18

Publications (1)

Publication Number Publication Date
US3505969A true US3505969A (en) 1970-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US768778A Expired - Lifetime US3505969A (en) 1968-10-18 1968-10-18 Anchor

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US (1) US3505969A (enrdf_load_stackoverflow)
GB (1) GB1230244A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005084A1 (en) * 1984-05-05 1985-11-21 Brupat Limited Fluked burial devices
US4831952A (en) * 1986-10-24 1989-05-23 Dumison Marine Pty. Ltd. Anchor
EP0585750A1 (de) * 1992-08-25 1994-03-09 Wilhelm Stemmer Schiffs-, insbesondere Bootsanker mit annähern flachem, plattenförmigem Ankerblatt
US5683209A (en) * 1993-02-01 1997-11-04 Costley, Jr.; John L. Marine bi-plane anchor
US20050066870A1 (en) * 1996-09-04 2005-03-31 Burns Peter Robert Ground anchors using tines and compression plate
US20050217188A1 (en) * 1996-09-04 2005-10-06 Burns Peter R Ground anchors with compression plates
NL2008424C2 (nl) * 2012-03-07 2013-09-10 Stevlos B V Anker met een vloei en een schacht.
US9802678B2 (en) 2014-06-27 2017-10-31 Tim Orsello Anchor systems and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053838A (en) * 1933-07-06 1936-09-08 Nils E Lundin Anchor
US2959145A (en) * 1957-01-31 1960-11-08 Paul H Griffith Anchors
US3270704A (en) * 1963-12-09 1966-09-06 Ekberg Stig Johan Bruno Anchor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053838A (en) * 1933-07-06 1936-09-08 Nils E Lundin Anchor
US2959145A (en) * 1957-01-31 1960-11-08 Paul H Griffith Anchors
US3270704A (en) * 1963-12-09 1966-09-06 Ekberg Stig Johan Bruno Anchor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005084A1 (en) * 1984-05-05 1985-11-21 Brupat Limited Fluked burial devices
AU581225B2 (en) * 1984-05-05 1989-02-16 Brupat Limited Fluked burial devices
US4856451A (en) * 1984-05-05 1989-08-15 Brupat Limited Fluked burial devices
US4831952A (en) * 1986-10-24 1989-05-23 Dumison Marine Pty. Ltd. Anchor
EP0585750A1 (de) * 1992-08-25 1994-03-09 Wilhelm Stemmer Schiffs-, insbesondere Bootsanker mit annähern flachem, plattenförmigem Ankerblatt
US5683209A (en) * 1993-02-01 1997-11-04 Costley, Jr.; John L. Marine bi-plane anchor
US20050066870A1 (en) * 1996-09-04 2005-03-31 Burns Peter Robert Ground anchors using tines and compression plate
US20050217188A1 (en) * 1996-09-04 2005-10-06 Burns Peter R Ground anchors with compression plates
NL2008424C2 (nl) * 2012-03-07 2013-09-10 Stevlos B V Anker met een vloei en een schacht.
WO2013133695A1 (en) * 2012-03-07 2013-09-12 Stevlos B.V. Anchor having a fluke and a shank
US9802678B2 (en) 2014-06-27 2017-10-31 Tim Orsello Anchor systems and methods

Also Published As

Publication number Publication date
GB1230244A (enrdf_load_stackoverflow) 1971-04-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAG

Free format text: SECURITY INTEREST;ASSIGNOR:A.L. HANSEN MANUFACTURING COMPANY;REEL/FRAME:005032/0778

Effective date: 19890322