US3716012A - Anchors for marine use - Google Patents

Anchors for marine use Download PDF

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Publication number
US3716012A
US3716012A US00044021A US3716012DA US3716012A US 3716012 A US3716012 A US 3716012A US 00044021 A US00044021 A US 00044021A US 3716012D A US3716012D A US 3716012DA US 3716012 A US3716012 A US 3716012A
Authority
US
United States
Prior art keywords
head
shank
flukes
anchor
anchors
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
US00044021A
Other languages
English (en)
Inventor
K Wright
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.)
SIMPSON-LAWRENCE Ltd 218/228 EDMISTON DR GLASGOW
Original Assignee
SECURITY PATENT ANCHOR CO Ltd
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 SECURITY PATENT ANCHOR CO Ltd filed Critical SECURITY PATENT ANCHOR CO Ltd
Application granted granted Critical
Publication of US3716012A publication Critical patent/US3716012A/en
Assigned to SIMPSON-LAWRENCE LIMITED, 218/228 EDMISTON DR., GLASGOW reassignment SIMPSON-LAWRENCE LIMITED, 218/228 EDMISTON DR., GLASGOW ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SECURITY PATENT ANCHOR CO. LIMITED, THE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B63B21/40—Anchors pivoting when in use with one fluke
    • B63B21/42—Anchors pivoting when in use with one fluke of ploughshare type

Definitions

  • FIG.4 ANCHORS FOR MARINE USE Filed June 8, 1970 3 Sheets-Sheet 3 FIG.4
  • An anchor according to the invention incorporates a shank and, pivoted to one end of the shank a head c nsisting of two straight end portions connected by a curved intermediate portion the curvature of which is such that the end portions lie at an acute angle to one another with their centre lines all in the same plane, the head being pivotally attached to the shank at one end, the axis of the pivotal connection lying in the same plane as the centre line of the shank and also in the same plane as the centre lines of the portions of the head, and the portion of the head between the curved portions and the other end carrying two sidewardly extending flukes inclined in directions away from one another and from the shank.
  • the end portion of the head carrying the flukes is preferably pointed at its outer end.
  • the portion of the head carrying the flukes may be triangular in cross section with the vertex of the triangle pointing towards the shank, the flukes being formed from a plate bent to the same angle as that formed between the sides defining the said vertex and being fitted over the head portion to embrace the head portion.
  • the sides of the head portion forming the vertex may be recessed so that the plate, when fitted to the head portion, is flush with the adjoining portions of the sides of the head portion.
  • the strut may consist of a tube welded at its ends to the flukes.
  • Each fluke may be substantially triangular with one lobe extending backwardly beyond the intermediate portion of the bar.
  • the plate which is bent to form the flukes may be approximately heart-shaped, the line of bend being along the line of symmetry of the heart.
  • the end portion pivoted to the shank may be formed with a spigot presenting two transverse trunnions, the two trunnions being co-axial, with their common axis lying on the same plane as that containing the centre lines of the head portions.
  • the end of the shank is bifurcated to embrace the spigot, the limbs of the bifurcation being formed with apertures for reception of the trunnions.
  • At least one of the limbs of the bifurcation may be a portion separate from the shank and welded thereto after the trunnions have been engaged with the aperture.
  • the shank may be curved towards the head near the end pivoted to the head.
  • FIG. 1 is a side elevation of the anchor head
  • FIG. 2 is a plan view looking on the anchor head
  • FIG. 3 is a section through the line 33 in FIG. 1
  • FIG. 4 is a section through the i 4-4 in FIG. 1
  • FIG. 5 is a section through the line 5--5 in FIG. 1.
  • 1 denotes a shank and 2 denotes a reflex head consisting of straight portions 3 and 4 connected to one another by a curved intermediate portion 5.
  • the end portion 3 is formed with a spigot 6 presenting two transverse co-axial trunnions 7 with their common axis lying in the same plane as that containing the centre lines of the portions 3, 4 and 5.
  • the shank 1 is bifurcated, the limbs of the bifurcation embracing the spigot 6 and being formed with apertures engaging the trunnions 7.
  • the head portion 4 is triangular in cross section, the triangular shape being so orientated that the vertex of the triangle points towards the shank 1.
  • the head portion 4 is furnished with two flukes 8 formed from a plate of substantially heart shape bent about the line of symmetry of the heart to the same angle as that formed between the sides defining the vertex of the triangular-section head portion 4 and being fitted over and welded to the head portion 4 in a recess 4A provided for reception of the bent plate forming the flukes 8.
  • This construction can be seen clearly in FIG. 3.
  • 9 denotes a strut welded between the lobes 8A of the flukes 8 to provide added rigidity to the flukes.
  • An anchor incorporating a shank and, pivoted to one end of the shank a head consisting of two straight end portions connected by a curved intermediate portion, the curvature of which is such that the end portions lie at an acute angle to one another with their center lines all in the same plane, the shank being pivotally attached to one of said end portions, the axis of the pivotal connection lying in the same plane as the center line of the shank and also in the same plane as the center lines of the portions of the head, and two sidewardly extending mutually inclined flukes formed from a single plate bent along a line of symmetry to the desired angle of mutual inclination of the flukes fitted over the other end portion to embrace the said other end portion, the end portion of the head embraced by the plate forming, the flukes being recessed between its ends so that the plate, when fitted to the said end portion, is flush with the adjoining portions of the surface of the head at opposite ends of the plate, a portion of the head thus projecting beyond the front end of the plate.
  • An anchor as claimed in claim 1 in which there is provided between the ends of the flukes a strut fastened between the flukes within the recess formed between the flukes.
  • each fluke is substantially triangular with one lobe extending backwardly beyond the said intermediate portion of the head.
  • An anchor as claimed in claim 1 in which the end of the head pivoted to the shank is formed with a spigot presenting two transverse trunnions, the two trunnions being co-axial, with their common axis lying on the same plane as that containing the centre lines of the portions of the head.
  • An anchor as claimed in claim 6 in which the end of the shank is bifurcated to embrace the spigot, the limbs of the bifuration being formed with apertures for reception of the trunnions.
  • An anchor as claimed in claim 7 in which at least one of the limbs of the bifurcation is a portion separate from the shank and Welded thereto after the trunnions have been engaged with the apertures.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)
US00044021A 1969-06-20 1970-06-08 Anchors for marine use Expired - Lifetime US3716012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3131069 1969-06-20

Publications (1)

Publication Number Publication Date
US3716012A true US3716012A (en) 1973-02-13

Family

ID=10321223

Family Applications (1)

Application Number Title Priority Date Filing Date
US00044021A Expired - Lifetime US3716012A (en) 1969-06-20 1970-06-08 Anchors for marine use

Country Status (3)

Country Link
US (1) US3716012A (enrdf_load_stackoverflow)
FR (1) FR2046966B1 (enrdf_load_stackoverflow)
GB (1) GB1316946A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134356A (en) * 1975-06-13 1979-01-16 Peter Bruce Anchors
US4173938A (en) * 1976-10-06 1979-11-13 Constructions Metalliques De Provence Anchors and anchoring system
US4676184A (en) * 1985-09-11 1987-06-30 Alpha Ocean Systems, Inc. Flexible shank anchors
US4763597A (en) * 1987-04-20 1988-08-16 Jss Scientific Corporation Folding anchor
US4827863A (en) * 1987-09-08 1989-05-09 Rule Industries, Inc. Plow anchor for marine use
US4958586A (en) * 1988-11-03 1990-09-25 Jss Scientific Corporation Folding anchor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739998B1 (enrdf_load_stackoverflow) * 1971-04-10 1982-08-24

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134356A (en) * 1975-06-13 1979-01-16 Peter Bruce Anchors
US4173938A (en) * 1976-10-06 1979-11-13 Constructions Metalliques De Provence Anchors and anchoring system
US4676184A (en) * 1985-09-11 1987-06-30 Alpha Ocean Systems, Inc. Flexible shank anchors
US4763597A (en) * 1987-04-20 1988-08-16 Jss Scientific Corporation Folding anchor
US4827863A (en) * 1987-09-08 1989-05-09 Rule Industries, Inc. Plow anchor for marine use
US4958586A (en) * 1988-11-03 1990-09-25 Jss Scientific Corporation Folding anchor

Also Published As

Publication number Publication date
FR2046966A1 (enrdf_load_stackoverflow) 1971-03-12
FR2046966B1 (enrdf_load_stackoverflow) 1974-08-02
GB1316946A (en) 1973-05-16

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AS Assignment

Owner name: SIMPSON-LAWRENCE LIMITED, 218/228 EDMISTON DR., GL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SECURITY PATENT ANCHOR CO. LIMITED, THE;REEL/FRAME:003828/0913

Effective date: 19800711

STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)