US2465261A - Stockless pivoted fluke anchor - Google Patents

Stockless pivoted fluke anchor Download PDF

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Publication number
US2465261A
US2465261A US641196A US64119646A US2465261A US 2465261 A US2465261 A US 2465261A US 641196 A US641196 A US 641196A US 64119646 A US64119646 A US 64119646A US 2465261 A US2465261 A US 2465261A
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Prior art keywords
flukes
stockless
crown
fiukes
auxiliary
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Expired - Lifetime
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US641196A
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Norman W Pabst
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24Anchors
    • B63B21/38Anchors pivoting when in use
    • B63B21/44Anchors pivoting when in use with two or more flukes

Definitions

  • the invention aims to provide an unusually simple, light and strong, stockless, marine anchor which will quickly and effectively bury itself regardless of its light weight and will, therefore, be much more effective than even larger and heavier anchors, the constructions of which not only retard effective burying but to a large extent prevent it.
  • FIG. l of the accompanying drawings is a plan view with part of the shank broken away.
  • Fig. 2 is a side elevation.
  • Fig. 3 is a rear elevation.
  • Fig. 4 is an enlarged fragmentary longitudinal sectional view substantially on line 4-5 of Fig. 1.
  • Fig. 5 is a transverse sectional view on the plane of line 5-5 of Figs. 1 and 2.
  • Two main flukes 6 are provided, preferably having about parallel longitudinal edges behind their pointed front ends. Integral with the rear end of each main fluke 6, is an upper, auxiliary fluke l which inclines rearwardly. A lower, auxiliary fluke 8 is also integral with the rear end of the main fluke 6 and declines rearwardly therefrom.
  • Each fluke l, 8 is preferably of substantially ccncavo-convex form in longitudinal section with its concave side merging very gradually into the contiguous side of the main fluke 6.
  • the rigidly joined fiukes E, 1 and 8 jointly provide two triplex fiukes having rearwardly open V- shaped pockets 9, which pockets also open laterally. I have found that a triplex fluke of this nature will not only be unusually light but will more effectively bury itself than prior constructions with which I am familiar.
  • auxiliary fiukes l and 8 While the rear ends of the auxiliary fiukes l and 8 are free and this is also true of the outer longitudinal edges of these auxiliary flukes, the inner edge portions of the upper flukes I are integrally connected with the inner edge portions of the lower fiukes 8, by means of vertical webs H] which are instrumental in joining the triplex flukes integrally to the crown II.
  • This crown is of one-piece U-shaped formation, with its side arms l2 projecting forwardly from its arm-connecting portion 13.
  • the front ends of the arms I2 are outwardly widened as shown at it and are integrally joined to the inner opposed sides of the webs W.
  • the arm-connecting portion [3 includes a rearward lug l5 having an opening is and 2 provides the equivalent of the conventional buoy shackle.
  • a suitable shank I1 is received between the rear ends of the arms I2 and is pivoted thereto by means of a transverse pin l8.
  • the arms 12 are integrally connected by transverse webs l9 which constitute stops for limiting the pivotal movement of the triplex fiukes and crown in both directions with respect to said shank, as well as adding strength to the structure of the crown.
  • the upper side of this crown is below the rear extremities of the upper auxiliary flukes 1, and the lower side of said crown is above the rear extremities of the lower auxiliary fiukes 8, and the crown will not, therefore, interfere with effective burying of the flukes l or 8, regardless of which side of the anchor be down.
  • a stockless pivoted fluke anchor comprising two laterally spaced elongated unidirectional main fiukes, two upper auxiliary fiukes inclined rearwardly from and integrally joined to the rear ends of said main flukes respectively, two lower auxiliary flukes declined rearwardly from and integrally joined to said rear ends of said main flukes respectively, said main flukes and said auxiliary flukes jointly providing two triplex fiukes, the rear edges and the outer longitudinal edges of said upper and lower auxiliary flukes being free, to provide said triplex fiukes with rearwardly and laterally open V-shaped pockets between said upper and lower auxiliary flukes, said upper auxiliary flukes being free of connection with each other, and said lower auxiliary flukes being also free of connection with each other, two vertical webs extending from the inner longitudinal edges of said upper auxiliary fiukes to the inner longitudinal edges of said lower auxiliary flukes and integrally joined to said upper and lower auxiliary flukes, a one-piece crown between the rear portions of said triplex flukes, said crown being of U-shape in top View and

Description

March 22, 1949. N. w. PABST 2,465,261
STOCKLESS PIVOTED FLUKE ANCHOR Filed Jan. 15, 1946 2 Sheets-Sheet l Elliil- 5 March 22, 1949. N. w. PABST STOCKLESS PIVOTED FLUKE ANCHOR 2 SheecS -Sheet 2 Filed Jan. 15, 1946 116777711 zzwj aZsf Patented Mar. 22, 1949 UNITED STATES PATENT orncs 2,465,261 STOCKLESS PIVOTED FLUKE ANCHOR Norman W. Pabst, La Crosse, Wis. Application January 15, 1946, Serial No. 641,196
1 Claim.
The invention aims to provide an unusually simple, light and strong, stockless, marine anchor which will quickly and effectively bury itself regardless of its light weight and will, therefore, be much more effective than even larger and heavier anchors, the constructions of which not only retard effective burying but to a large extent prevent it.
Figure l of the accompanying drawings is a plan view with part of the shank broken away.
Fig. 2 is a side elevation.
Fig. 3 is a rear elevation.
Fig. 4 is an enlarged fragmentary longitudinal sectional view substantially on line 4-5 of Fig. 1.
Fig. 5 is a transverse sectional view on the plane of line 5-5 of Figs. 1 and 2.
A preferred construction has been illustrated and will be rather specifically described, with the understanding, however, that within the scope of the invention as claimed, minor variations may be made.
Two main flukes 6 are provided, preferably having about parallel longitudinal edges behind their pointed front ends. Integral with the rear end of each main fluke 6, is an upper, auxiliary fluke l which inclines rearwardly. A lower, auxiliary fluke 8 is also integral with the rear end of the main fluke 6 and declines rearwardly therefrom. Each fluke l, 8 is preferably of substantially ccncavo-convex form in longitudinal section with its concave side merging very gradually into the contiguous side of the main fluke 6. The rigidly joined fiukes E, 1 and 8 jointly provide two triplex fiukes having rearwardly open V- shaped pockets 9, which pockets also open laterally. I have found that a triplex fluke of this nature will not only be unusually light but will more effectively bury itself than prior constructions with which I am familiar.
While the rear ends of the auxiliary fiukes l and 8 are free and this is also true of the outer longitudinal edges of these auxiliary flukes, the inner edge portions of the upper flukes I are integrally connected with the inner edge portions of the lower fiukes 8, by means of vertical webs H] which are instrumental in joining the triplex flukes integrally to the crown II. This crown is of one-piece U-shaped formation, with its side arms l2 projecting forwardly from its arm-connecting portion 13. The front ends of the arms I2 are outwardly widened as shown at it and are integrally joined to the inner opposed sides of the webs W. The arm-connecting portion [3 includes a rearward lug l5 having an opening is and 2 provides the equivalent of the conventional buoy shackle.
The rear end of a suitable shank I1 is received between the rear ends of the arms I2 and is pivoted thereto by means of a transverse pin l8. Above and below this pivoted end of the shank H, the arms 12 are integrally connected by transverse webs l9 which constitute stops for limiting the pivotal movement of the triplex fiukes and crown in both directions with respect to said shank, as well as adding strength to the structure of the crown. The upper side of this crown is below the rear extremities of the upper auxiliary flukes 1, and the lower side of said crown is above the rear extremities of the lower auxiliary fiukes 8, and the crown will not, therefore, interfere with effective burying of the flukes l or 8, regardless of which side of the anchor be down.
From the foregoing, taken in connection with the accompanying drawings, it will be seen that novel and advantageous provision has been made for carrying out the object of the invention, and while preferences have been disclosed, attention is again invited to the possibility of making variations within the scope of the invention as claimed.
I claim:
A stockless pivoted fluke anchor comprising two laterally spaced elongated unidirectional main fiukes, two upper auxiliary fiukes inclined rearwardly from and integrally joined to the rear ends of said main flukes respectively, two lower auxiliary flukes declined rearwardly from and integrally joined to said rear ends of said main flukes respectively, said main flukes and said auxiliary flukes jointly providing two triplex fiukes, the rear edges and the outer longitudinal edges of said upper and lower auxiliary flukes being free, to provide said triplex fiukes with rearwardly and laterally open V-shaped pockets between said upper and lower auxiliary flukes, said upper auxiliary flukes being free of connection with each other, and said lower auxiliary flukes being also free of connection with each other, two vertical webs extending from the inner longitudinal edges of said upper auxiliary fiukes to the inner longitudinal edges of said lower auxiliary flukes and integrally joined to said upper and lower auxiliary flukes, a one-piece crown between the rear portions of said triplex flukes, said crown being of U-shape in top View and having its arms extending forwardly from. its arm-connecting portion, the front ends of said arms being outwardly widened and extending to said vertical webs and being integrally joined to the opposed inner sides of said webs, the upper 3 4 side of said crown being below the upper extrem- REFERENCES CITED mes of Bald upper auxmary flukes and the lower The following references are of record in the side of said crown being above the lower extremities of said lower auxiliary flukes, a shank having me of this patent its rear end received between said arms, and a 5 UNITED ES PA ENTS transverse pivot near said arm-connecting por- Number Name Date tion of said crown and extending through said 644,955 Watson Man 6' 1900 arms and shank, said crown having integral stops 1,513025 Becker Oct 28 1924 above and below said shank for limiting the pivotal movement of said triplex fiukes and crown 10 FOREIGN PATENTS in both directions with respect to said shank. Number country Date NORMAN PABST- 8,548 Great Britain May 5, 1892
US641196A 1946-01-15 1946-01-15 Stockless pivoted fluke anchor Expired - Lifetime US2465261A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656811A (en) * 1951-08-21 1953-10-27 Denver D Mcrae Boat anchor
US4892053A (en) * 1988-07-08 1990-01-09 Don Hallerberg Twin-fluke marine anchor having loosely coupled flukes
US5154133A (en) * 1991-03-01 1992-10-13 Hallerberg Don M Twin-fluke marine anchor having an adjustable shank/fluke pivot angle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644955A (en) * 1899-08-04 1900-03-06 John Watson Anchor.
US1513025A (en) * 1921-03-26 1924-10-28 Becker Wilhelm Anchor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644955A (en) * 1899-08-04 1900-03-06 John Watson Anchor.
US1513025A (en) * 1921-03-26 1924-10-28 Becker Wilhelm Anchor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656811A (en) * 1951-08-21 1953-10-27 Denver D Mcrae Boat anchor
US4892053A (en) * 1988-07-08 1990-01-09 Don Hallerberg Twin-fluke marine anchor having loosely coupled flukes
US5154133A (en) * 1991-03-01 1992-10-13 Hallerberg Don M Twin-fluke marine anchor having an adjustable shank/fluke pivot angle

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