US721663A - Ship's anchor. - Google Patents

Ship's anchor. Download PDF

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Publication number
US721663A
US721663A US11402602A US1902114026A US721663A US 721663 A US721663 A US 721663A US 11402602 A US11402602 A US 11402602A US 1902114026 A US1902114026 A US 1902114026A US 721663 A US721663 A US 721663A
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United States
Prior art keywords
shank
arms
pair
anchor
guideway
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Expired - Lifetime
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US11402602A
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Henry James Brooke
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Individual
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Priority to US11402602A priority Critical patent/US721663A/en
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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

Definitions

  • the present invention refers to improvements in ships anchors; and its subject is an automatic stockless four-armed anchor in which one pair of arms is rigidly fastened to the shank, while the other pair is'arranged so as to be capable of moving up the lower part of the shank, which is formed like a screw with a great pitch.
  • the length of the screwed part of the shank and the pitch are arranged in such a manner that the movable pair of arms will shift from a cross position when resting on the fixed pair of arms to a parallel position after having made onefourth of a revolution in moving from the cross position to the extremity of the screwed part of the shank.
  • the advantage of this arrangement is that the anchor is capable of lying flat down on the deck and of automatically assuming the cross position when heaved overboard, so that at least two flukes must take hold.
  • a is the shank; b, the fixed pair of arms; 0, the movable pair.
  • the lower part of the shank d is shaped like a screw with great pitch, on which the boss e of the movable pair of arms a, like a nut, is capable of turning.
  • the screwed part dot the shank, which is preferably made slightly conical from the base upward, can
  • a fixed collar h on the shank limits the movement of the movable pair of arms.
  • the fixed pair of arms is attached in a suitable manner to the lower extremity of the shank, which is also provided with a ring f.
  • the upper extremity of the shank is provided with a ring gin the usual manner.
  • a shank having a spirally- I disposed guideway upon its lower end and a pair of arms rigidly securedto the end of the shank in combination with a pair of movable arms having an aperture adapted to loosely receive said shank and move upon said guideway whereby when both pairs of arms are in contact with each other they will be disposed at right angles and when said movable arms are moved up the shank in said guideway they will be turned by said guideway and disposed substantially parallel with the fixed arms as and for the purpose set forth.
  • the herein-described anchor comprising a shank having a spirally-disposed guideway upon its lower end; a pair of arms fixedly secured to the extreme lower end of the shank and a pair of movable arms disposed around said shank in cooperation with said guideway whereby when the arms are in contact with each other they will be substantially at right angles and when said arms are separated they will occupy substantially the same plane and means carried by the shank to connect it with the cable all substantially as specified and for the purpose set forth.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Piles And Underground Anchors (AREA)

Description

No. 721, 3.. PATENTED MAR, 3, 1-903.-
H.i 'J. BROOKE. 6 SHIPS ANCHOR.
APPLICATION FILED JULY 1. 1902. I0 nonnn.
w W1T/VESSES: INVENTOR,
- Fen/21y cl Brobke THE NORRIS PErERS 20., PMOw-L!THO.. WASHINGTmL D. c.
UNITED STATES PATENT OFFICE.
HENRY JAMES BROOKE, OF SVENDBORG, DENMARK.
SHIPS ANCHOR.
SPECIFICATION forming part of Letters Patent No. 721,663, dated March 3, 1903. Application filed July 1, 1902'. Serial no. 114,026. (No model.)
To all whom it may concern:
Be it known that I, HENRY JAMES BROOKE, retired engineer, a citizen of Great Britain, residing at Svendborg, Island of 'lunen in the Kingdom of Denmark, (whose post-office address is 49 Vim melskaftet, Copenhagen, Denmark,) have invented certain new and useful Improvements in Ships Anchors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters of reference marked thereon, which forms a part of this specification.
The present invention refers to improvements in ships anchors; and its subject is an automatic stockless four-armed anchor in which one pair of arms is rigidly fastened to the shank, while the other pair is'arranged so as to be capable of moving up the lower part of the shank, which is formed like a screw with a great pitch. The length of the screwed part of the shank and the pitch are arranged in such a manner that the movable pair of arms will shift from a cross position when resting on the fixed pair of arms to a parallel position after having made onefourth of a revolution in moving from the cross position to the extremity of the screwed part of the shank. The advantage of this arrangement is that the anchor is capable of lying flat down on the deck and of automatically assuming the cross position when heaved overboard, so that at least two flukes must take hold.
The invention is illustrated in the accompanying drawing, showing ananchor of the described type seen from above as lying on deck, with the two pairs of arms parallel to oneanother.
a is the shank; b, the fixed pair of arms; 0, the movable pair.
The lower part of the shank d is shaped like a screw with great pitch, on which the boss e of the movable pair of arms a, like a nut, is capable of turning. The screwed part dot the shank, which is preferably made slightly conical from the base upward, can
be formed simply by twisting a square bar. 50
A fixed collar h on the shank limits the movement of the movable pair of arms. The fixed pair of arms is attached in a suitable manner to the lower extremity of the shank, which is also provided with a ring f. The upper extremity of the shank is provided with a ring gin the usual manner.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. In an anchor, a shank having a spirally- I disposed guideway upon its lower end and a pair of arms rigidly securedto the end of the shank in combination with a pair of movable arms having an aperture adapted to loosely receive said shank and move upon said guideway whereby when both pairs of arms are in contact with each other they will be disposed at right angles and when said movable arms are moved up the shank in said guideway they will be turned by said guideway and disposed substantially parallel with the fixed arms as and for the purpose set forth.
2. The herein-described anchor comprising a shank having a spirally-disposed guideway upon its lower end; a pair of arms fixedly secured to the extreme lower end of the shank and a pair of movable arms disposed around said shank in cooperation with said guideway whereby when the arms are in contact with each other they will be substantially at right angles and when said arms are separated they will occupy substantially the same plane and means carried by the shank to connect it with the cable all substantially as specified and for the purpose set forth.
In testimony that I claim the foregoingas my invention I have signed my name inpresence of two subscribing witnesses.
HENRY JAMES BROOKE.
Witnesses: I v
J. C. JAcoBsEN, ERNEST BOUTARD. I
US11402602A 1902-07-01 1902-07-01 Ship's anchor. Expired - Lifetime US721663A (en)

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US11402602A US721663A (en) 1902-07-01 1902-07-01 Ship's anchor.

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US11402602A US721663A (en) 1902-07-01 1902-07-01 Ship's anchor.

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533586A (en) * 1947-02-11 1950-12-12 Walter Krzeszewski Anchor
US4403564A (en) * 1981-03-02 1983-09-13 Garvin Robert E Anchor
US4576521A (en) * 1983-12-30 1986-03-18 Joseph Conrad Permanent mooring method and arrangement
US5529023A (en) * 1995-07-03 1996-06-25 Boardman; Thomas K. Grapnel boat anchor
US6062621A (en) * 1998-10-21 2000-05-16 Zelazny; Mark Collapsible grappling hook
US20080248917A1 (en) * 2005-12-09 2008-10-09 Fallbrook Technologies Inc. Continuously variable transmission
US11125329B2 (en) 2007-11-16 2021-09-21 Fallbrook Intellectual Property Company Llc Controller for variable transmission
US11174922B2 (en) 2019-02-26 2021-11-16 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions
US11215268B2 (en) 2018-11-06 2022-01-04 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
US11306818B2 (en) 2016-01-15 2022-04-19 Fallbrook Intellectual Property Company Llc Systems and methods for controlling rollback in continuously variable transmissions
US11598397B2 (en) 2005-12-30 2023-03-07 Fallbrook Intellectual Property Company Llc Continuously variable gear transmission
US11667351B2 (en) 2016-05-11 2023-06-06 Fallbrook Intellectual Property Company Llc Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533586A (en) * 1947-02-11 1950-12-12 Walter Krzeszewski Anchor
US4403564A (en) * 1981-03-02 1983-09-13 Garvin Robert E Anchor
US4576521A (en) * 1983-12-30 1986-03-18 Joseph Conrad Permanent mooring method and arrangement
US5529023A (en) * 1995-07-03 1996-06-25 Boardman; Thomas K. Grapnel boat anchor
US6062621A (en) * 1998-10-21 2000-05-16 Zelazny; Mark Collapsible grappling hook
US11454303B2 (en) 2005-12-09 2022-09-27 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US20080248917A1 (en) * 2005-12-09 2008-10-09 Fallbrook Technologies Inc. Continuously variable transmission
US11598397B2 (en) 2005-12-30 2023-03-07 Fallbrook Intellectual Property Company Llc Continuously variable gear transmission
US11125329B2 (en) 2007-11-16 2021-09-21 Fallbrook Intellectual Property Company Llc Controller for variable transmission
US11306818B2 (en) 2016-01-15 2022-04-19 Fallbrook Intellectual Property Company Llc Systems and methods for controlling rollback in continuously variable transmissions
US11667351B2 (en) 2016-05-11 2023-06-06 Fallbrook Intellectual Property Company Llc Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission
US11215268B2 (en) 2018-11-06 2022-01-04 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
US11624432B2 (en) 2018-11-06 2023-04-11 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
US11530739B2 (en) 2019-02-26 2022-12-20 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions
US11174922B2 (en) 2019-02-26 2021-11-16 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions

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