GB1599897A - Ferry or cargo vessel provided with a ramp - Google Patents
Ferry or cargo vessel provided with a ramp Download PDFInfo
- Publication number
- GB1599897A GB1599897A GB4377977A GB4377977A GB1599897A GB 1599897 A GB1599897 A GB 1599897A GB 4377977 A GB4377977 A GB 4377977A GB 4377977 A GB4377977 A GB 4377977A GB 1599897 A GB1599897 A GB 1599897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ramp
- end assembly
- vessel
- assembly
- axis
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B27/143—Ramps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
- Ship Loading And Unloading (AREA)
Description
(54) A FERRY OR CARGO VESSEL PROVIDED
WITH A RAMP
(71) We, CARGO SPEED EQUIP
MENT LIMITED, a British Company, and
JOHN GEORGE BROWN, a British subject, both of Garvel Shipyard, Greenock, Renfrewshire, Scotland, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The invention relates to a ferry or cargo vessel provided with a ramp.
In the Complete Specification of our Letters
Patent No. 1,438,755, to which the present application is one for a Patent of Addition, there is described and claimed a vessel of the ferry or cargo type comprising a ramp having a load carrying surface at least a portion of which is of arcuate or curved formation, said ramp being hinged to the deck of the vessel so that it can be raised to a stowed position or lowered to bridge the gap between the vessel and a quay at which the vessel is berthed.
The ramp of such a vessel can be mounted adjacent the stern or bow of the vessel, which is desirable for reasons of stability and ease of vehicle manoeuvre whilst still permitting the vessel to berth sideon to a quay. The embodiment of the invention shown in the drawings accompanying the aforementioned specification has, however, a ramp which does not permit vehicles to be driven on and off the vessel when the vessel is berthed end-on to the quay, and the present invention seeks to provide a vessel having a ramp which will permit vehicles to be driven on or off the vessel both when the vessel is berthed end-on and when it is berthed side-on to the quay.
Accordingly, the invention provides a vessel of the ferry or cargo type as claimed in any of Claims 1 to 9 of our Patent No. 1,438,755, in which vessel the ramp is provided, at the convex side of the arcuate or curved portion of the load-carrying surface, with a secondary load-carrying section disposed so as to extend from the remainder of the ramp in a direction generally parallel to the longitudinal centre line of the vessel in use of the ramp for carrying a vehicle thereover onto or off the vessel whereby a vehicle may be driven onto the vessel over said secondary section when said vessel is berthed end-on to a quay and over the remainder of the rampl when the vessel is berthed side-on to a quay.
Preferably the ramp is provided, at the end of the arcuate or curved portion and/or the end of the secondary section remote from the deck, with an end assembly of a plurality of load-carrying sub-sections which assembly is attached to the remainder of the ramp and which sub-sections can move relative to the remainder of the ramp and relative to each other, so that an edge of an or each end assembly sub-section remote from the ramp can lie flat or in contact with, respectively, the surface of a quay even when an axis along which said end assembly is connected to the remainder of the ramp is not exactly parallel to the surface of the quay.
Advantageously the ramp is provided with an end assembly of a plurality of load-carrying sub-sections, which assembly is movable between a first position, in which it lies adjacent the end of the curved or arcuate portion remote from the deck, and a second position, in which it lies adjacent the end of the secondary section remote from the deck, the sub-sections of said end assembly being movable relative to the remainder of the ramp and relative to each other so that an edge of an or each end assembly sub-section remote from the ramp can lie fiat on or in contact with, respectively, the surface of a quay even when the axis along which said end assembly is connected to the remainder of the ramp is not exactly parallel to the surface of the quay.
Preferred embodiments of the invention will now be described, though by way of illustration only, with reference to the accompanying drawings, in which: Figure 1 is a partial top plan view of a first vessel of the invention with its ramp in its operating position;
Figure 2 is a partial side elevation of the vessel shown in Figure 1 with its ramp in its stowed position;
Figure 3 is a partial top plan view of a second vessel of the invention with its ramp in its operating position; and
Figure 4 is a partial side elevation of the ramp of the vessel shown in Figure 3 looking in the direction of arrow A in that Figure.
The vessel shown in Figures 1 and 2 of the accompanying drawings is generally similar to that shown in the drawings accompanying the aforementioned Complete Specification
No. 1,438,755. The vessel has a stern 10, an upper deck 11 and a main deck 12, the upper deck 11 bearing two vertical pillars 13 and 14.
A ramp having a curved or arcuate main span 17 is hinged to the main deck 12 so as to pivot about an axis 18 which lies at about 30 to the vessel's transverse centre line. The main span 17 is formed of a rigid frame 16 (see Figure 2) which supports a floor 19 of curved, arcuate formation which serves as a load-carrying surface. At the end of the main span 17 remote from the axis 18 is provided an end assembly comprising two side subsections 20 and 21 and a central sub-section 22. Each of the side sub-sections 20 and 21 is independently hinged to the main span 17 for pivoting about a common axis 23, and the two side sub-sections 20 and 21 are hinged to the adjacent edges of the central sub-section 22 by hinges 24 and 25 respectively.The formation of the end assembly enables the free edge of the central sub-section 22 to lie flat on the quay even when (because of differences in level between the main deck 12 and the surface of the quay) the axis 23 does not lie exactly parallel to the plane of the surface of the quay.
From the convex side of the main span 17 extends a secondary load-carrying section 26 of the ramp (although the division between the main span 17 and the secondary section 26 is marked by a broken line in Figure 1, it will be appreciated that the secondary section 26 is in fact integral with the main span
17).The secondary section 26 extends parallel to the longitudinal centre line of the vessel in the lowered position of the ramp for use in carrying vehicles onto the vessel and bears, at its outer end, a pivotally connected end assembly comprising a plurality of sub-sections in the form of elongate members 27 each freely pivotable independently about a common axis 28, at which axis said end assembly is connected to the end of the second section 27 and which end lies perpendicular to the transverse centre line of the vessel. (Alternatively, the secondary section of the ramp may have the same type of end assembly as the main span 17).
Two hydraulic cylinder assemblies 37 are connected between the side sub-sections 20 and 21 respectively of the end assembly and a pair of flanges 38. By varying the length of the hydraulic cylinder assemblies 37, the sub-sections 20, 21 and 22 of the end assembly can be pivoted about the horizontal axis 23 between an operating position (shown in
Figure 1) in which they lie substantially in the plane of the load-carrying surface, and a stowage position (shown in Figure 2), in which they lie substantially perpendicular to the plane of the load-carrying surface.
When the vessel is berthed side-on to a quay, as shown in Figure 1, vehicles may be driven on and off the vessel via the end assembly 20, 21, 22, whilst when the vessel is berthed stern-on to a quay, vehicles may be driven on and off vla the secondary section 26 and the other end assembly constituted by elongate members 27. In the latter case, the free ends of each of the elongate members lie on the surface of the quay, thus avoiding vehicles having to negotiate a "step" between the quay and the ramp.
The ramp can be raised, lowered, and moved between its operating and fixed positions by means of cables 28 which are reeved around two sets of fixed sheaves 29 mounted on the pillars 13 and 14 respectively and around two sets of movable sheaves 30 mounted on a main beam 31 whcih forms part of the frame 16. The raising and lowering of the ramp and its movement between its operating and fixed positions are effected in a manner precisely similar to that of the ramp shown in the drawings accompanying our aforementioned Complete Specification No.
1,438,755.
The ramp of the vessel shown in Figures 3 and 4 is closely similar to that of the vessel shown in Figures 1 and 2 and can be moved between stowed and operating positions in the same way, but has only one end assembly, which is similar to the end assembly on the main span 17 of the ramp shown in Figures 1 and 2. The end assembly shown in Figures 3 and 4 is, however, movable between a first position (shown in full lines in Figure 3), in which it lies adjacent the end of the curved or arcuate section 17 remote from the main deck 12, and a second position (shown in broken lines in Figure 3), in which it lies adjacent the end of the secondary section 26 remote from the main deck 12.
The end assembly has a base portion 32 extending beneath the load-carrying surface, this base portion 32 being pivotably connected at 33 to an arm 34 provided with guide rollers 35 which run on a trackway (not shown) attached to the main beam 31 of the ramp.
The arm 24 passes through a slot in the main beam 31 and is welded to a pivot pin 36 rotatably journalled in the frame of the ramp.
The rotatable mounting of the pivot pin 36 enables the end assembly to be moved between its first and second positions by pivoting about the axis of the pivot pin 36, which is perpendicular to the plane of the load-carrying surface of the ramp, a hydraulic cylinder assembly 41 being connected between the arm 34 and the main span 17 for this purpose.
The ramp shown in Figures 3 and 4 is provided with a pair of first hydraulic cylinder assemblies 37, which function in exactly the same manner as the hydraulic cylinder assemblies of the ramp shown in Figures 1 and 2. However, the ramp shown in Figures 3 and 4 is also provided with a pair of second hydraulic cylinder assemblies 39, which are connected between the base portion 32 of the ramp and the arm 34. By varying the length of the second hydraulic cylinder assemblies 39, the base portion 32 of the ramp can be pivoted about the axis 33 between its first and second positions (the first position being shown in full lines in Figure 4), in which it lies substantially in the plane of the loadcarrying surface, and a lowered position (shown in broken lines in Figure 4), in which it lies below the said plane.
The base portions 32 of the ramp is provided with locking means in the form of two hydraulically-operated locking pins 40 which can fit into sockets provided on the adjacent edges of the main span 17 or the secondary section 26 of the ramp, thereby locking the end assembly in either its first or its second position.
To move the end assembly from its first to its second position, the locking pins 40 are withdrawn from the sockets on the main span 17 of the ramp and the second hydraulic cylinder assemblies 39 shortened to lower the end assembly to its lowered position. Operation of the hydraulic cylinder assembly 41 now causes the end assembly and the arm 34 to pivot together about the axis of the pivot pin 36, until the end assembly lies adjacent the edge of the secondary section 26 remote from the main deck 12. (The lowering of the end assembJy below the plane of the load-carrying surface prevents the base portion 32 of the assembly fouling the adjacent edges of the ramp as it is pivoted about the axis of the pin 36.If the end assembly were not lowered, it would be necessary to form the edges of the main span 17 and the secondary section 26 adjacent the base portion 32 as arcs of a circle centred on the axis of the pin 36 and special, generally inconvenient, arrangements would have to be made to bridge the gaps which would appear between the edge of the main span 17 or the secondary section 26 and
the adjacent edge of the base portion 32). The hydraulic cylinder assemblies 39 are then lengthened, so lifting the end assembly to its
second position, whereupon the locking pins 40 can be extended into the sockets on the secondary section 26 of the ramp, so locking
the end assembly in its second position.
To move the end assembly from its second to its first position, the above sequence of operations is simply reversed.
WHAT WE CLAIM IS - 1. A vessel of the ferry or cargo type as claimed in any of Claims 1 to 9 of Patent No.
1,438,755, in which vessel the ramp is pro vided, at the convex side of the arcuate or curved portion of the load-carrying surface, with a secondary load-carrying section disposed so as to extend from the remainder
of the ramp in a direction generally parallel
to the longitudinal centre line of the vessel
in use of the ramp for carrying a vehicle thereover onto or off the vessel whereby a
vehicle may be driven onto the vessel over
said secondary section when said vessel is
berthed end-on to a quay and over the re
mainder of the ramp when the vessel is berthed
side-on to a quay.
2. A vessel as claimed in Claim 1, in which
the ramp is provided, at the end of the arcuate or curved portion and/or the end of the secondary section remote from the deck, with
an end assembly of a plurality of load-carrying sub-sections which assembly is attached to the remainder of the ramp and which subsections can move relative to the remainder
of the ramp and relative to each other, so that an edge of an or each end assembly sub
section remote from the ramp can lie flat on or in contact with, respectively, the surface
of a quay even when an axis along which said end assembly is connected to the remainder
of the ramp is not exactly parallel to the sur
face of the quay.
3. A vessel as claimed in Claim 2 wherein is provided a first said end assembly at the end of the arcuate portion and a second said end assembly at the end of said second section.
4. A vessel as claimed in Claim 1, in which the ramp is provided with an end assembly of a plurality of load-carrying sub-sections, which assembly is movable between a first position, in which it lies adjacent the end of the curved or arcuate portion remote from the deck, and a second position, in which it lies adjacent the end of the secondary section remote from the deck, the sub-sections of said end assembly being movable relative to the remainder of the ramp and relative to each
other so that an edge of an or each end assembly sub-section remote from the ramp can lie flat on or in contact with, respectively, the surface of a quay even when the axis along which said end assembly is connected to the remainder of the ramp is not exactly parallel to the surface of the quay.
5. A vessel as claimed in Claim 4, in which movement of the end assembly between its first and second positions is effected by pivoting the end assembly about an axis substantially perpendicular to the load-carrying surface and spaced from the said ends of the curved or arcuate portion and of the secondary section.
6. A vessel as claimed in Claim 5, in which support means are disposed between the said ends of the curved or arcuate portion and of the secondary section and the said axis, the support means acting to support the end
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1,438,755, in which vessel the ramp is pro vided, at the convex side of the arcuate or curved portion of the load-carrying surface, with a secondary load-carrying section disposed so as to extend from the remainder
of the ramp in a direction generally parallel
to the longitudinal centre line of the vessel
in use of the ramp for carrying a vehicle thereover onto or off the vessel whereby a
vehicle may be driven onto the vessel over
said secondary section when said vessel is
berthed end-on to a quay and over the re
mainder of the ramp when the vessel is berthed
side-on to a quay.
2. A vessel as claimed in Claim 1, in which
the ramp is provided, at the end of the arcuate or curved portion and/or the end of the secondary section remote from the deck, with
an end assembly of a plurality of load-carrying sub-sections which assembly is attached to the remainder of the ramp and which subsections can move relative to the remainder
of the ramp and relative to each other, so that an edge of an or each end assembly sub
section remote from the ramp can lie flat on or in contact with, respectively, the surface
of a quay even when an axis along which said end assembly is connected to the remainder
of the ramp is not exactly parallel to the sur
face of the quay.
3. A vessel as claimed in Claim 2 wherein is provided a first said end assembly at the end of the arcuate portion and a second said end assembly at the end of said second section.
4. A vessel as claimed in Claim 1, in which the ramp is provided with an end assembly of a plurality of load-carrying sub-sections, which assembly is movable between a first position, in which it lies adjacent the end of the curved or arcuate portion remote from the deck, and a second position, in which it lies adjacent the end of the secondary section remote from the deck, the sub-sections of said end assembly being movable relative to the remainder of the ramp and relative to each
other so that an edge of an or each end assembly sub-section remote from the ramp can lie flat on or in contact with, respectively, the surface of a quay even when the axis along which said end assembly is connected to the remainder of the ramp is not exactly parallel to the surface of the quay.
5. A vessel as claimed in Claim 4, in which movement of the end assembly between its first and second positions is effected by pivoting the end assembly about an axis substantially perpendicular to the load-carrying surface and spaced from the said ends of the curved or arcuate portion and of the secondary section.
6. A vessel as claimed in Claim 5, in which support means are disposed between the said ends of the curved or arcuate portion and of the secondary section and the said axis, the support means acting to support the end
assembly during its movement between its first and second positions.
7. A vessel as claimed in Claim S or Claim 6, wherein drive means are provided for moving the end assembly between each of its first and second positions, in which first and second positions the end assembly lies generally in the plane of said load-carrying surface, and a lowered position, in which the end assembly lies below the said plane, whereby the end assembly can be moved from its first position to its lowered position, pivoted about the said axis and thereafter raised to its second position.
8. A vessel as claimed in any of Claims 4 to 7, in which locking means are provided for locking the end assembly in either of its first and its second position.
9. A vessel as claimed in Claim 1, and substantially as herein described, with reference to and is illustrated in Figures 1 and 2 or
Figures 3 and 4 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4377977A GB1599897A (en) | 1978-04-19 | 1978-04-19 | Ferry or cargo vessel provided with a ramp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4377977A GB1599897A (en) | 1978-04-19 | 1978-04-19 | Ferry or cargo vessel provided with a ramp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1599897A true GB1599897A (en) | 1981-10-07 |
Family
ID=10430274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4377977A Expired GB1599897A (en) | 1978-04-19 | 1978-04-19 | Ferry or cargo vessel provided with a ramp |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1599897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009148385A1 (en) * | 2008-06-02 | 2009-12-10 | Tts Ships Equipment Ab | Device for a divided ship ramp |
| US20100066111A1 (en) * | 2008-09-16 | 2010-03-18 | Disney Enterprises, Inc. | Wheelchair ramp for a ride vehicle |
-
1978
- 1978-04-19 GB GB4377977A patent/GB1599897A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009148385A1 (en) * | 2008-06-02 | 2009-12-10 | Tts Ships Equipment Ab | Device for a divided ship ramp |
| CN102046459A (en) * | 2008-06-02 | 2011-05-04 | Tts海运公司 | Device for a divided ship ramp |
| CN102046459B (en) * | 2008-06-02 | 2014-10-22 | Tts海运公司 | Device for a divided ship ramp |
| US20100066111A1 (en) * | 2008-09-16 | 2010-03-18 | Disney Enterprises, Inc. | Wheelchair ramp for a ride vehicle |
| US9289337B2 (en) * | 2008-09-16 | 2016-03-22 | Disney Enterprises, Inc. | Wheelchair ramp for a ride vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |