Ships – Towing or pushing – Coupling means
Patent
1996-05-10
1998-03-31
Sotelo, Jesus D.
Ships
Towing or pushing
Coupling means
114230, B63B 2104
Patent
active
057326479
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invent on relates m a device and a method for engaging and disengaging of a towing line, in one end formed like a loop, to and from a ship, at which there are provided, substantially in one common vertical plane, a first guide means in the form of a hawse-hole, a boltard head, around which said loop is intended to be engaged, and a working for inhauling of a messenger rope, attached to the towing line.
BACKGROUND OF THE INVENTION
The work on board a ship, engaging and disengaging a towing line from a tow boat to a ship means, with the equipment hitherto available, and considering the limited crew nowadays on board, considerable risks for accidents. Engaging and disengaging have furthermore hitherto been arduous.
SUMMARY OF THE INVENTION
The object of the invention is to provide a device and a method of the art mentioned introductorily, that admits safe and simple engaging and disengaging of a towing line from a tow boat to and from a ship.
A device according m the invention is primarily characterized by a second guide means, attached to the ship between the bollaxd head and the working, a first line between the hawse-hole and the second guide means running relatively close above the bollard head whilst a second line between the hawse-hole and the working, runs relatively high above the bollard head so that the messenger rope, guided by the second guide means substantially following the first line admits engaging of the loop of the towing line around the bollard head, whilst the messenger rope, free from the second guide means, substantially following the second line, admits disengaging of the loop of the towing line from the bollard head. This device and cormponding method warrant engaging and disengaging without risk and with a limited manpower effort.
In one preferred embodiment of the device according to the invention a third guide means is attached to the ship between the bollard head and the hawse-hole, provided to guide, when engaging, the loop of the towing line in a horizontal plane to warrant the engaging of the loop around the bollard head. With this embodiment the engaging and disengaging will be even more safe and even less demanding for manpower effort.
Per se the second guide means can be formed in different ways, but it has proved to be suitable to form it like a hook with the opening downwards. The third guide means is advantageously formal like a horizontal bar, in one end carried by a leg, and it is suitably located in the vicinity of the bollard head.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention shall now be described more closely, reference being made to the enclosed figures, which show two embodiments of a device according to the invention.
In the enclosed figures, which are all schematical,
FIGS. 1a-b show side views of parts of a first embodiment of the invention,
FIG. c shows a view from above of parts of the embodiment in FIGS. 1 a b,,
FIGS. 2a-c show engaging of a towing line at an embodiment in FIGS. 1a-c,
FIGS. 3a-c show disengaging of a towing line at the embodiment in FIGS. 1a-c,
FIGS. 4a-c show engaging of a towing line at a second embodiment of the invention,
FIGS. 5a-c show disengaging of a towing line at the embodiment in FIGS. 4a-c,
FIG. 6 shows a view from above of parts of a second embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
In the figures 1 refers to bollard head with a sliding shield 6. A hawse-hole provided in a plate at the side of the ship is referred to as 5, and a hook, attached to the deck of the ship is 2. The hawse-hole 5, the bollard head 1 and the hook 2 are located in such a way, that a common vertical plane can be laid through them. A working 7 (e.g., winch or the like) is only indicated in the FIGS. 2 and 3.
The procedure when engaging the towing line is seen in FIGS. 2 a-c. In FIG. 2a there is shown how the messanger rope is pulled from the working 7, below the hook 2, above the bollard head 1 and out through the hawse-hole to a tow boat, which is not shown. FIG. 2b shows how the t
REFERENCES:
patent: 4067281 (1978-01-01), Walker et al.
patent: 4387659 (1983-06-01), Terauchi et al.
Patent Abstracts of Japan, vol. 12, No. 212, (M-710), Abstract of JP A 63-13887, Mitsubishi Heavy Ind LTD, Jan. 21, 1988.
Derwent's Abstract, No. 84-193863/31, Week 8431, Abstract of SU 1057366 A, Gorki River Fleet, Nov. 30, 1983.
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