US3715769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slidable mobile bridge
Assignee: JFE Engineering Corp
•
Filing: 1970-09-21
•
Granted: 1973-02-13
•
Expires: 1990-09-21
Abstract
Abstract A shiftable mobile bridge for use between a quay and a ship in which a rotatable roller is attached to an end of the main bridge gangway adjacent the quay. The roller can be moved horizontally or vertically by appropriate hydraulic or gravity devices, along an inclined quay face as the main bridge gangway is moved inwardly and outwardly from the quay in a generally horizontal direction. The outboard end of the gangway can also be moved vertically to accommodate differences in level between ship and shore.
Inventors
- 👤 K Mori
- 👤 Y Shirage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/24; E02; E02B; E02B3/00; E02B3/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
270 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and side quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, for placing said ship end of said gangway in engagement with a ship when said moving means moves said gangway to said extended position thereof and for disengaging said ship end of said gangway from a ship when said moving means moves said gangway to said retracted position thereof, said moving means being operatively connected with said gangway for releasing the latter for free rolling movement at said rotatable roller means along said inclined surface of said quay after said ship end of said gangway has been engaged with a ship so that said gangway is free to follow vertical movement of a ship with respect to said quay while remaining in engagement with a ship.
Claim 2
Dependent Claim
270 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and side quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, for placing said ship end of said gangway in engagement with a ship when said moving means moves said gangway to said extended position thereof and for disengaging said ship end of said gangway from a ship when said moving means moves said gangway to said retracted position thereof, said moving means being operatively connected with said gangway for releasing the latter for free rolling movement at said rotatable roller means along said inclined surface of said quay after said ship end of said gangway has been engaged with a ship so that said gangway is free to follow vertical movement of a ship with respect to said quay while remaining in engagement with a ship.
Claim 3
Dependent Claim
270 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and side quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, for placing said ship end of said gangway in engagement with a ship when said moving means moves said gangway to said extended position thereof and for disengaging said ship end of said gangway from a ship when said moving means moves said gangway to said retracted position thereof, said moving means being operatively connected with said gangway for releasing the latter for free rolling movement at said rotatable roller means along said inclined surface of said quay after said ship end of said gangway has been engaged with a ship so that said gangway is free to follow vertical movement of a ship with respect to said quay while remaining in engagement with a ship.
Claim 4
Dependent Claim
270 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and side quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, for placing said ship end of said gangway in engagement with a ship when said moving means moves said gangway to said extended position thereof and for disengaging said ship end of said gangway from a ship when said moving means moves said gangway to said retracted position thereof, said moving means being operatively connected with said gangway for releasing the latter for free rolling movement at said rotatable roller means along said inclined surface of said quay after said ship end of said gangway has been engaged with a ship so that said gangway is free to follow vertical movement of a ship with respect to said quay while remaining in engagement with a ship.
Claim 5
Dependent Claim
24 words
The combination of claim 1 and wherein said elevating means includes rotatable support rollers on which said gangway is supported by said elevating means.
Claim 6
Dependent Claim
49 words
The combination of claim 1 and wherein a pair of guide means are Respectively formed in said vertical surfaces of said quay and coact with said moving mean and inclined surface of said quay for guiding said gangway during movement of the latter between said retracted and extended positions.
Claim 7
Dependent Claim
16 words
The combination of claim 1 and wherein said moving means includes a plurality of hydraulic cylinders.
Claim 8
Dependent Claim
14 words
The combination of claim 1 and wherein said elevating means includes hydraulic pressure devices.
Claim 9
Dependent Claim
12 words
The combination of claim 1 and wherein said elevating means includes winches.
Claim 10
Dependent Claim
181 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and said quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, a position correcting means being carried by said gangway and coacting with said vertical surfaces of said quay for laterally adjusting said gangway between said vertical surfaces.
Claim 11
Dependent Claim
181 words
For use between ship and shore, a quay having an inclined surface provided with an outer end situated at a lower elevation than an opposed inner end thereof, said inclined surface having a pair of opposed side edges and said quay having a pair of vertical surfaces respectively extending upwardly from said opposed side edges, a main bridge gangway adapted to extend between said quay and a ship, said main bridge gangway having an inner quay end carrying a rotatable roller means for moving along said inclined surface of said quay between said vertical surfaces thereof, moving means operatively connected with said quay end of said gangway for moving the latter between a retracted position and an extended position where the outer end of the gangway is adapted to connect with a ship, and elevating means adjacent the outer ship end of said gangway for raising and lowering the latter end of said gangway, a position correcting means being carried by said gangway and coacting with said vertical surfaces of said quay for laterally adjusting said gangway between said vertical surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |