US3836019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly for unloading powdered or similar material from a ship{40 s hold
Assignee: KRISTIAN G JEBSEN
•
Filing: 1973-03-05
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Granted: 1974-09-17
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Expires: 1993-03-05
Abstract
Abstract An assembly for unloading powdered material and the like from a ship''s hold which comprises three conveyors and a delivery pipe linked to each other about mutually parallel horizontal axes. The delivery pipe is stationarily positioned relative to the conveyors for downwardly receiving the material from a third conveyor. The conveyors and delivery pipe together with a supply head for feeding the material to a first conveyor provide a dusttight, closed passage for the powdered material. The supply head houses screw conveyors adapted to transfer the material to a portion of said supply head from which screw conveyors of the first conveyor directly extend. The point of linkage between first and second conveyors is suspended from and regulatable vertically and horizontally by way of ship crane means while the point of linkage between second and third conveyors is supported outside the ship on elevated guide means extending transversely of the direction of the ship.
Inventors
- 👤 P Aralt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
B; B65; B65G; B65G67/00; B65G67/60; B65G67/606
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
216 words
In an assembly for unloading powdered material and the like from a ship''s hold which comprises a supply head, a first conveyor arranged to receive said material fed from the supply head, a second conveyor arranged to receive said material on being lifted from the hold by said first conveyor, a third conveyor arranged to receive said material on being transferred by said second conveyor from a position above the hold to an elevated position outside the ship and a delivery pipe stationarily positioned relative to said conveyors for downwardly receiving said material from said third conveyor, said conveyors and said delivery pipe being linked to each other about mutually parallel horizontal axes and said supply head, said conveyors and said delivery pipe providing a dust-tight, closed passage for the powdered material, the improvement which consists in the supply head housing screw conveyors adapted to transfer said material to a supply head portion from which upstanding screw conveyors of said first conveyor directly extend, the point of linkage between the first and second conveyors being suspended from and regulatable vertically and horizontally by way of ship crane means while the point of linkage between the second and third conveyors is supported outside the ship on elevated guide means extending transversely of the direction of the ship.
Claim 2
Dependent Claim
216 words
In an assembly for unloading powdered material and the like from a ship''s hold which comprises a supply head, a first conveyor arranged to receive said material fed from the supply head, a second conveyor arranged to receive said material on being lifted from the hold by said first conveyor, a third conveyor arranged to receive said material on being transferred by said second conveyor from a position above the hold to an elevated position outside the ship and a delivery pipe stationarily positioned relative to said conveyors for downwardly receiving said material from said third conveyor, said conveyors and said delivery pipe being linked to each other about mutually parallel horizontal axes and said supply head, said conveyors and said delivery pipe providing a dust-tight, closed passage for the powdered material, the improvement which consists in the supply head housing screw conveyors adapted to transfer said material to a supply head portion from which upstanding screw conveyors of said first conveyor directly extend, the point of linkage between the first and second conveyors being suspended from and regulatable vertically and horizontally by way of ship crane means while the point of linkage between the second and third conveyors is supported outside the ship on elevated guide means extending transversely of the direction of the ship.
Claim 3
Dependent Claim
26 words
The improved assembly according to claim 1, wherein the supply head extends in an operative position over not less than half the breadth of the hold.
Claim 4
Dependent Claim
29 words
The improved assembly according to claim 1, wherein the elevated guide means forms an upper portion of a wagon displaceable on rails extending longitudinally of and outside the ship.
Claim 5
Dependent Claim
116 words
The improved assembly according to claim 1, wherein the supply head portion from which the upstanding screw conveyors extend is disposed centrally of the supply head, the screw conveyors of the supply head are each arranged in parallel sections separated by the central supply head portion, said screw conveyors being adapted on turning to cause the material to be drawn through supply head openings on either side of said central portion and to occupy intermediate spaces between said parallel sections while being conveyed from opposite directions to said central portion and wherein said upstanding screw conveyors are also arranged in parallel and are adapted on turning to draw said material upwards through an intermediate space therebetween.
Claim 6
Dependent Claim
27 words
The improved assembly according to claim 4, wherein means for driving the parallel sections of the screw conveyors are located at opposite ends of the supply head.
Claim 7
Dependent Claim
65 words
The improved assembly according to claim 4, wherein means for driving the parallel screw conveyors of the first conveyor are located in a driving head at the uppermost end of said conveyor, said first conveyor passing through one end of the second conveyor at a location just below said driving head and being sealed against the second conveyor on the upper and lower sides thereof.
Claim 8
Dependent Claim
52 words
The improved assembly according to claim 1, wherein the second conveyor is bent upwardly approximately at its centre and houses a conveyor belt for delivering said material to the third conveyor and wherein means for driving the conveyor belt are located at the end of the second conveyor adjacent the third conveyor.
Claim 9
Dependent Claim
38 words
The improved assembly according to claim 7, wherein the end of the second conveyor adjacent the third conveyor is supported in a guide member which is displaceable towards and away from the ship on the elevated guide means.
Claim 10
Dependent Claim
44 words
The improved assembly according to claim 8, wherein the guide member supports a funnel rotatably mounted about a horizontal axis and connected uppermost to the end of the second conveyor adjacent the third conveyor with a seaLing bellows and lowermost to the third conveyor.
Claim 11
Dependent Claim
76 words
The improved assembly according to claim 1, wherein the third conveyor is provided with bearing-forming end slots at its lowermost end and the delivery pipe for finally discharging said material has trunnions for engaging said slots, there being arranged a sealing bellows between the delivery pipe and the third conveyor permitting turning between said third conveyor and said delivery pipe and axial displacement of the lowermost end of said third conveyor relative to said delivery pipe.
Claim 12
Dependent Claim
36 words
The improved assembly according to claim 10, wherein a conveyor belt extends longitudinally of the ship and the delivery pipe is located in a fixed position relative to said conveyor belt for releasing said material thereon.
Claim 13
Dependent Claim
72 words
The improved assembly according to claim 1, wherein the third conveyor is a telescopic pipe and the delivery pipe for finally discharging said material is connected to the lowermost end of said telescopic pipe whereby axial displacement of the latter can take place relative to the delivery pipe, there being arranged a sealing bellows between said telescopic pipe and the delivery pipe permitting turning between the telescopic pipe and the delivery pipe.
Claim 14
Dependent Claim
36 words
The improved assembly according to claim 12, wherein a conveyor belt extends longitudinally of the ship and the delivery pipe is located in a fixed position relative to said conveyor belt for releasing said material thereon.
Claim 15
Dependent Claim
63 words
The improved assembly according to claim 1, wherein the first conveyor is formed in two sections having a joint length permitting the supply head to empty the top half of the hold, the two sections being separable to permit the insertion of a third section to extend the length of said conveyor and enable the lower half of the hold to be emptied.
References Cited (Backward Citations)
FR1394529A
Cited
US3392818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |