CA1099155A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Interlinked icebreaker/cargo-carrying vessel locomotive system
Assignee: Dome Petroleum Ltd
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Filing: 1978-03-14
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Granted: 1981-04-14
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Expires: 1998-03-14
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A cargo-carrying articulated ship system having icebreaking capabilities is provided herein. The system comprises a powered cargo-carrying vessel having an icebreaking hull form, a bow and a stern, and a powered locomotive vessel having an icebreaking hull form, a bow and a stern. A connection system is provided for connecting the powered cargo-carrying vessel and the powered locomotive vessel together at concave and convex respective bow and stern configurations. The connection system in-cludes male junction elements (a semi-spherical projection and the nose of the towed vessel)/female junction elements (semi-cylindrical hollow verti-cal outlets in the stern of the towing vessel). These male/female junction elements restrain longitudinal movement between the connected vessels, yet permit relative vertical movement and allow relative rotational movement. The connection system also includes hydraulic cylinders secured to the lo-comotive vessel with lines secured to the arm end therefrom and tied to the cargo-carrying vessel. Interrelated pulling-in on one cylinder and slack-ing off on the other cylinder controls the lateral movement of the powered cargo-carrying vessel in relation to the powered locomotive vessel. This operation enables the powered cargo-carrying vessel to be manoeuverable in lateral directions independent of the direction of movement of the loco-motive vessel..Thus a powered cargo-carrying vessel for use in ice infested waters is provided having an optimal split between cargo-carrying capability and propulsion capability.
Inventors
- 👤 Bengt M. Johansson
- 👤 Jocelyn Davies
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-09 03:55
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/66; B63B35/70; B63B35/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
262 words
A cargo-carrying articulated ship system having icebreaking capabilities comprising in combination: (a) a powered cargo-carrying vessel having an icebreaking hull form, a bow and a stern; (b) a powered locomotive vessel having an icebreaking hull form, a bow and a stern; (c) male/female function means for connecting the powered car-go-carrying vessel and the powered locomotive vessel at mated bow and stern configurations to prohibit significant longitudinal movement while permitting controlled steering and allowing free vertical adjustments, said male/female function means comprising a male emement comprising a semi-pherical projection at the nose of the bow of the towed vessel, along the center line thereof; and a female element comprising a semi-cylindrical hollow vertical de-tent at the tail of the stern of the towing vessel, along the center line thereof; and (d))means for controlling articulation and positively providing steering of the cargo-carrying vessel in relation to the locomotive vessel, said means comprising a connector ten-sioning ram disposed at the port and at the starboard sides of either the bow or the stern of either the powered loco-motive vessel or the cargo-carrying vessel; and lines associated with such rams, with one end of said line being secured to the arm end of a respective such ram, and the other end of said lines being secured to respective port and starboard bollards at respective associated bow or stern of the associated cargo-carrying vessel or powered locomotive vessel, said line length changing means being operable by interrelated lengthening of such line and corresponding shortening of the other such line, thereby to control articulation and positively provide steering.
Claim 2
Dependent Claim
262 words
A cargo-carrying articulated ship system having icebreaking capabilities comprising in combination: (a) a powered cargo-carrying vessel having an icebreaking hull form, a bow and a stern; (b) a powered locomotive vessel having an icebreaking hull form, a bow and a stern; (c) male/female function means for connecting the powered car-go-carrying vessel and the powered locomotive vessel at mated bow and stern configurations to prohibit significant longitudinal movement while permitting controlled steering and allowing free vertical adjustments, said male/female function means comprising a male emement comprising a semi-pherical projection at the nose of the bow of the towed vessel, along the center line thereof; and a female element comprising a semi-cylindrical hollow vertical de-tent at the tail of the stern of the towing vessel, along the center line thereof; and (d))means for controlling articulation and positively providing steering of the cargo-carrying vessel in relation to the locomotive vessel, said means comprising a connector ten-sioning ram disposed at the port and at the starboard sides of either the bow or the stern of either the powered loco-motive vessel or the cargo-carrying vessel; and lines associated with such rams, with one end of said line being secured to the arm end of a respective such ram, and the other end of said lines being secured to respective port and starboard bollards at respective associated bow or stern of the associated cargo-carrying vessel or powered locomotive vessel, said line length changing means being operable by interrelated lengthening of such line and corresponding shortening of the other such line, thereby to control articulation and positively provide steering.
Claim 3
Dependent Claim
79 words
The ship system of claim 1 wherein said line length changing means comprises: a connector tensioning ram at the port and at the starboard sides at the bow of the powered locomotive vessel; and lines associated with such rams, with one end of one said line being secured to the arm end of a respective such ram, and the other end of said lines being secured to respective port and starboard bollards at the stern of the cargo-carrying vessel.
Claim 4
Dependent Claim
78 words
The ship system of claim 1 wherein said line length changing means comprises: a connector tensioning ram at the port and at the star-board sides at the stern of the powered locomotive vessel; and lines associated with said rams, with one end of one line being secured to the arm end of a respective such ram, and the other end of said lines being se-cured to respective port and starboard bollards at the bow of the cargo-carrying vessel.
Claim 5
Dependent Claim
78 words
The ship system of claim 1 wherein said line length changing means comprises: a connector tensioning ram at the port and at the star-board sides at the bow of the cargo-carrying vessel; and lines associated with said rams, with one end of one line being secured to the arm end of a respective such ram and the other end of said lines being secured to respec-tive port and starboard bollards at the stern of the powered locomotive vessel.
Claim 6
Dependent Claim
78 words
The ship system of claim 1 wherein said line length changing means comprises: a connector tensioning ram at the port and at the starboard sides at the stern of the cargo-carrying vessel; and lines associated with said rams, with one end of one line being secured to the arm end of a respective such ram, and the other end of said lines being secured to respective port and starboard bollards at the bow of the powered locomotive vessel.
Claim 7
Dependent Claim
40 words
The ship system of claims 2 or 3 wherein said connector ten-sioning rams are disposed parallel to the sides of the ship and controlled steering or rotation is achieved by pulling-in on one ram and slacking-off on the other ram.
Claim 8
Dependent Claim
40 words
The ship system of claims 4 or 5 wherein said connector ten-sioning rams are disposed parallel to the sides of the ship and controlled steering or rotation is achieved by pulling-in one one ram and slacking-off on the other ram.
Claim 9
Dependent Claim
35 words
The ship system of claims 3 or 4 wherein said cargo-carrying vessel is larger than the icebreaking locomotive and is provided with the female semi-cylindrical indented junction so that it is adapted to be pushed.
Claim 10
Dependent Claim
35 words
The ship system of claims 4 or 5 wherein said cargo-carrying vessel is larger than the icebreaking locomotive and is provided with the female semi-cylindrical indented junction so that it is adapted to be pushed.
Claim 11
Dependent Claim
34 words
The ship system of claims 3 or 4 wherein the cargo-carrying vessel is smaller then the icebreaking locomotive and is provided with the male semi-spherical junction so that it is adapted to be pulled.
Claim 12
Dependent Claim
34 words
The ship system of claims 4 or 5 wherein the cargo-carrying vessel is smaller than the icebreaking locomotive and is provided with the male semi-spherical junction so that it is adapted to be pulled.
References Cited (Backward Citations)
No citation records indexed.
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