CA1036531A - Floating unloading installation for lighters - Google Patents
Floating unloading installation for lightersInfo
- Publication number
- CA1036531A CA1036531A CA238,347A CA238347A CA1036531A CA 1036531 A CA1036531 A CA 1036531A CA 238347 A CA238347 A CA 238347A CA 1036531 A CA1036531 A CA 1036531A
- Authority
- CA
- Canada
- Prior art keywords
- pontoons
- bridge
- installation
- conveyor
- floating
- 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
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- Ship Loading And Unloading (AREA)
Abstract
Title: Floating unloading installation for lighters.
Abstract of the Disclosure This disclosure relates to a floating unloading installation for unloading lighters and includes two pontoons which are secured together in fixed transverse spaced relation with the spacing between the pontoons being sufficient to accommodate between the pontoons a conventional lighter for movement therebetween, the pontoons being connected together by con-necting means which includes a transverse bridge and the bridge having mounted thereon in balanced relation for swinging movement generally across the space between the pontoons to assure the complete unloading of a lighter disposed between the pontoons, the digging means including first conveying means for delivering material to the bridge, the bridge having second conveying means for delivering material to one of the pontoons, the one pontoon carrying a vertical conveyor which is mounted in a tower forming a part of the bridge, and there being carried by the tower for swinging movement a distributing conveyor adapted to receive material from the vertical conveyor and for distributing material into a hold of a ship.
Abstract of the Disclosure This disclosure relates to a floating unloading installation for unloading lighters and includes two pontoons which are secured together in fixed transverse spaced relation with the spacing between the pontoons being sufficient to accommodate between the pontoons a conventional lighter for movement therebetween, the pontoons being connected together by con-necting means which includes a transverse bridge and the bridge having mounted thereon in balanced relation for swinging movement generally across the space between the pontoons to assure the complete unloading of a lighter disposed between the pontoons, the digging means including first conveying means for delivering material to the bridge, the bridge having second conveying means for delivering material to one of the pontoons, the one pontoon carrying a vertical conveyor which is mounted in a tower forming a part of the bridge, and there being carried by the tower for swinging movement a distributing conveyor adapted to receive material from the vertical conveyor and for distributing material into a hold of a ship.
Description
_ - 2 -~.Q3653~ ~
- ~hiq invention relates to a floating unloading installation for lighters, comprising a digging means mounted on a craft which can be brought alongside a seagoing ship, the digging means being capable of removing bulk cargo'~rom a lighter. A weighing means may be provided on the craft as well as a vertical conveyor for raising the bulk cargo so --that it can reach the hold of the seagoing ship through a sloping conveying means.
As a result of the depth of the water being insufficient it i8 often not possible to load larger seagoing ships directly at a quay w'here', for in~tance, a grain elevator i.s located.
Therefore floatlng unloaders o~ the type describod in tho opening paragraph are used with whi¢h such sea~oing ship~ can be handled in mid-stream.
In the known ~loating unloaders the craft is often a barge Pr pontoon. The digging means is a swivelling grabbing crane, which removes an amount of bulk cargo from the lighter, feeds it to the hopper of a weighing installation, that is, if such a weighing installation is u~ed, after which the ~ 20 weighed material is raised through a vertical conveyor so - that the material is dumped into the hold of the seagoing ship ;~
by means of an inclined conveying means, for instance a chute.
These known floating unloading installations ha~e the .
~ollowing drawbacks.
In a swivelling crane with a grab the centre of gravity i8 displaced during swivelling and emptying the grab in such a , ...................... . . .
") way that the pontoon is swinging virtually constantly, which re~uIts in the top o~ the vertioal oonveyor with the ohute winging to and fro to an intolerable extent. Consequently 3 it is neither quite possible to fill a hold through the :- .
,~
~ ' ~
~ 3 -~ , .
~36531 ,..........
narrow opening~ in the deck, as present in ~hips of the so-called ~.A.S.H. type ("lighter aboard ship"). The central hold of ships of this type is used for the overseas transport -~of filled lighters, in the same way as containers'. The ~paces between the central hold and the hull o~ the ship are used as tanks, so-called wing tanks or side tanks. These side tanks are accessible through ~illing openings located along the sides of the deck o~ the ship. It will be clear that it 19 .:
di~ficult to dump, for instance, grain accurately in these openings from fl swinging pontoon.
Another drawback o~ the known installation is that a ~wivelling crane with a grab, which has to empty itoel~ ln, ~or in~tance, thè hopper o~ a weighln~ means~ make~ dust swirl up and thus causes unallowable environmental pollution.
Still another drawback of the known installation i5 .. . .
that th~ lighter to be unloaded, which may have a length of, '"'' , ~or instance, 60 metres, is located at the outerside of the pontoon - -that is to say, the pontoon lies between the lighter ;~
and the seagoing 3hip - and is much exposed to currents in the ' river.' ~here~ore the lighter often has to be continuously ~' controlled by a tùg during unloading.
This invention aims at removing the above-mentioned drawbacks of an installation o~ the type described in the .. . . . .
opening paragraph.
In accordanoe with the invention the cra~t i9 designed as an assembly o~ two pontoons with a space therebetween so that' a lighter can be hauled longitudinally between the two , . . . . .
pontoons, while'a oontinuously operating digging elevator with a radiu6 covering the width of the hold of the lighter ~' is mounted in balance on a bridge or portal connecting the two .-.~ . . . ' ~,' '.
":
103~53~
pontoons, and in the cross-linkage there are conveying means for conveying the material scooped up by the elevator to one of the pontoons on which the vertical conveyor, and i~
desired a weighing means, and the sloping conveying means are provided.
As instead of a swivelling grabbing crane a continuously operating digging elevator is used, which is located at one end of an arm supported on the bridge or the portal and pivotable about the centre, at the other end of which a counterweight is located, the displacement of the oentre o~
gravity during operation i9 negligible. Dust only swirls up a little~at the lower receiving end of the digging elevator which, ~or that matter, oan be of a known construction i.e.
completely closed and dust tight.
As the lighter lie~ between the two pontoons, which, for instance, may each have a length of 42 meters, the .., lighter is wel] protected against river currents. ~herefore it is not necessary to use tugs to control the lighter and the lighter can be anchored to one of the pontoons by means -o~ hauling winche~
;; An additional advantage of the stability of the double ~-pontoon is that, when a weighing means is used, it operates reliably.
", In a further elaboration of the invention the sloping conveying means can be constructed a~ a telescopic belt conveyor. The top of the vertical conveyor has to be at such a height that if the usual sloping chute is used ~or conveying ~ the bulk material from the lighter into the hold of a ship it ; extends sufficiently far to ~ill an empty and therefore a .;; , : .,'j ,', ~
`i 3 light-draught seagoing ship. ~hi~ entails that as soon as the : ' . '~ .' ' ' , , ' ~ .:
~03653~ :
.': . '`
ship come~ to lie deeper in the water or as soon a~ it is not necessary for the conveyor to extend that ~ar, the height for dumping the materials is useless and results in a high rate of fall so that again dust is formed causing unallowable environmental pollution. ~y using, in accordance with the invention, instead of a sloping chute a telescopic belt conveyor which, ~or that matter, may be of a known type, and with which therefore various ranges can be controlled ;
without falling movement~ of the material occurring and the slope of which belt conveyor moreover can be varied and thus the heights of various seagoing ships can be controlled, it i~ possible to control the oonveyance o~ the materlal as noar a~ po~ible to ito place o:f de~tination and w:Lthout exco0~ive ~ormation o~ dust. ~he belt conveyor may be pivotable with respect to the seaship so that less hauling has to be done.
; ~he hold of a lighter is often covered by a plurality o~ hatch covers, usually between 8 and 13. Before unloading j , , .
they have to be taken from the lighter andtemporarily stored, for whioh purpose a grabbing crane is u~ed in the known transfer installation.
According to the invention a hatch cover platform ~; extends transversely between the pontoons at one end thereo~
while furthermore a hatch cover cràne adapted to li~t hatch covers one by one and place it on the hatch cover platform, can be moved along the hatch cover platform.
An important advantage of the floating unloading installation according to the invention, comprising two pontoons and, in between them, accommodation for a lighter and a vertical conveyor on one of the pontoons and a sloping 0 conveyor for dumping bulk cargo in a seaship, is that with O
.
.03653~ :
a minimum number of hauling movements the entire hold cf the seagoing ship can be attended to. It is true that according to the invention the sloping conveying means has a variable effective length, but it makes an essential difference whether a normal freighter for bulk cargo, a so-called bulk carrier has to be loaded or a so-called L.A.S.H. ship. ~or in normal freighters the central por-tion where the hold is located has to be covered with the sloping conveying means, whereas in ~.A.S,H. ~hips the openings at the side of the ship' 8 deck have to be attended to. In the installation according to the invention the pontoon a~sembly can be placed alongside the ~.A.S.H. ship in a po~ition so that the vertlcal conveyor tower i8 located on the pontoon remote ~rom the ~eagoing ship. It is clear that, in partioular in vlew o~ the combination with the variable effective length o~ the sloping conveying mean~, a great number of side tank filling openings can be attended to without hauling the unloading insta,llation relative to the ship.
An embodiment of the floating unloading installation will now be described and elucidated with reference to the '~
accompanying drawing. ',-...
'' ~he drawing shows in perspective a freighter 1 and , alongside of the freighter a floating unloading installation , ~ 2, composed of two pontoons 3 and 4. ~etween pontoons 3 and ;
',j 4 there i8 shown a lighter 5, the bulk cargo 6 o~ whioh has ' to be trans~erred, to a hold 7 of the freighter 1. The floating ,' unloading installation 2 is fixed with respect to the anchored ' freighter 1 with the aid of cables 8.
~,' The two pontoons 3 and 4 o~ the discharge installation , ,, ,~ , . , ` 30 2 are interconnected, on the one hand by a bridge or ~' .~
.` '. ,;' ~ .
-- 7 -- :
~3~5i3~
~.., portal and, on the other hand, through a hatch cover platform construction 10. On portal 9 there is located a tubular arm ... ;
11, which is supported near the middle thereof on portal 9 -.
in supports 12, which are ei.ther horizontally swivable about the vertical axis, or movable to and fro along rails on ;.
portal 9. At one end o~ the tubular arm 11 there is located an elevator 13, for instance a bucket conveyor, and at the other end a counterweight 14 is provided so that elevator 13 ;~
i8 substantially in balance and when conveyor 13 makes vertical 1~ swivelling movements virtually no displacements of the centre of gravity with respect to the pontoon assembly ~ and 4 occur.
In the tubular arm 11 there is located a conveyor (not ~hown), which convey3 the material rai~ed by elevator 13 in the direction o~ the horizontal portlon o~ portal 9. Between supports 12 the material o~ the conveyor in tube 11 is trans~erred to the conveyor located in the horizontal portion .
of portal 9, which conveys the material to the right-hand side in the drawing, to an installation having the general re~erence ~ .
numeral 15 in the drawing. In this installation a known per se weighing means may be present as well as a vertical conveyor .conveying the material to such a level that it can reach hold 7 of the ship 1 through a sloping conveyor 16. ~he weighing means and the detalls of the construction of the vertical conveyor and any other apparatus in the installation 15 will ;
not be ~urther described, because such apparatu3 are known per se in transfer means o~ the present type.
. According to the invention the 3loping conveyor 16 consi~ts of a telescopic belt conveyor, that i~ to say, a belt conveyor in which the distanoe between the point where , 1036S3~
the material is dumped and the terminal roll can be changed by sliding the entire conveyor to and fro under the point where the material is dumped.
~ he conveyor can also be formed by a succession of conveyor belts that can be displaced with respect to one another, or a conveyor belt in which the distance between the initial roll and the terminal roll can be changed, as known per se. As it is possible to change the effective horizontal conveying distance in conveyor 16, optimum ~
adaptation to the height of freighter 1 is possible and the material can be conveyed as near as po~sible to its place of destination so tha`t ~ree fall o~ the material and dust form~
ation are minimi~ed.
Hatch cover platform 10, like portal 9, extends between the two pontoons 3 and 4. At each end of the deok there ia located a guideway 17 for a carriage 18. Carriages 18 oarry a guideway assembly 19 for a hatch cover crane 22.
With the hatch cover crane 20 the hatch covers of lighter 5 can be lifted and stored on platform 10 during unloading of -~
20 ~ the lighter. `-' ~., ' :' ..`, ~ ~
'. ' . `' ' ' ,' ' ' , '; `' ~ ," '.
., ~, :
, .' ~ ~;.
'; , .'
- ~hiq invention relates to a floating unloading installation for lighters, comprising a digging means mounted on a craft which can be brought alongside a seagoing ship, the digging means being capable of removing bulk cargo'~rom a lighter. A weighing means may be provided on the craft as well as a vertical conveyor for raising the bulk cargo so --that it can reach the hold of the seagoing ship through a sloping conveying means.
As a result of the depth of the water being insufficient it i8 often not possible to load larger seagoing ships directly at a quay w'here', for in~tance, a grain elevator i.s located.
Therefore floatlng unloaders o~ the type describod in tho opening paragraph are used with whi¢h such sea~oing ship~ can be handled in mid-stream.
In the known ~loating unloaders the craft is often a barge Pr pontoon. The digging means is a swivelling grabbing crane, which removes an amount of bulk cargo from the lighter, feeds it to the hopper of a weighing installation, that is, if such a weighing installation is u~ed, after which the ~ 20 weighed material is raised through a vertical conveyor so - that the material is dumped into the hold of the seagoing ship ;~
by means of an inclined conveying means, for instance a chute.
These known floating unloading installations ha~e the .
~ollowing drawbacks.
In a swivelling crane with a grab the centre of gravity i8 displaced during swivelling and emptying the grab in such a , ...................... . . .
") way that the pontoon is swinging virtually constantly, which re~uIts in the top o~ the vertioal oonveyor with the ohute winging to and fro to an intolerable extent. Consequently 3 it is neither quite possible to fill a hold through the :- .
,~
~ ' ~
~ 3 -~ , .
~36531 ,..........
narrow opening~ in the deck, as present in ~hips of the so-called ~.A.S.H. type ("lighter aboard ship"). The central hold of ships of this type is used for the overseas transport -~of filled lighters, in the same way as containers'. The ~paces between the central hold and the hull o~ the ship are used as tanks, so-called wing tanks or side tanks. These side tanks are accessible through ~illing openings located along the sides of the deck o~ the ship. It will be clear that it 19 .:
di~ficult to dump, for instance, grain accurately in these openings from fl swinging pontoon.
Another drawback o~ the known installation is that a ~wivelling crane with a grab, which has to empty itoel~ ln, ~or in~tance, thè hopper o~ a weighln~ means~ make~ dust swirl up and thus causes unallowable environmental pollution.
Still another drawback of the known installation i5 .. . .
that th~ lighter to be unloaded, which may have a length of, '"'' , ~or instance, 60 metres, is located at the outerside of the pontoon - -that is to say, the pontoon lies between the lighter ;~
and the seagoing 3hip - and is much exposed to currents in the ' river.' ~here~ore the lighter often has to be continuously ~' controlled by a tùg during unloading.
This invention aims at removing the above-mentioned drawbacks of an installation o~ the type described in the .. . . . .
opening paragraph.
In accordanoe with the invention the cra~t i9 designed as an assembly o~ two pontoons with a space therebetween so that' a lighter can be hauled longitudinally between the two , . . . . .
pontoons, while'a oontinuously operating digging elevator with a radiu6 covering the width of the hold of the lighter ~' is mounted in balance on a bridge or portal connecting the two .-.~ . . . ' ~,' '.
":
103~53~
pontoons, and in the cross-linkage there are conveying means for conveying the material scooped up by the elevator to one of the pontoons on which the vertical conveyor, and i~
desired a weighing means, and the sloping conveying means are provided.
As instead of a swivelling grabbing crane a continuously operating digging elevator is used, which is located at one end of an arm supported on the bridge or the portal and pivotable about the centre, at the other end of which a counterweight is located, the displacement of the oentre o~
gravity during operation i9 negligible. Dust only swirls up a little~at the lower receiving end of the digging elevator which, ~or that matter, oan be of a known construction i.e.
completely closed and dust tight.
As the lighter lie~ between the two pontoons, which, for instance, may each have a length of 42 meters, the .., lighter is wel] protected against river currents. ~herefore it is not necessary to use tugs to control the lighter and the lighter can be anchored to one of the pontoons by means -o~ hauling winche~
;; An additional advantage of the stability of the double ~-pontoon is that, when a weighing means is used, it operates reliably.
", In a further elaboration of the invention the sloping conveying means can be constructed a~ a telescopic belt conveyor. The top of the vertical conveyor has to be at such a height that if the usual sloping chute is used ~or conveying ~ the bulk material from the lighter into the hold of a ship it ; extends sufficiently far to ~ill an empty and therefore a .;; , : .,'j ,', ~
`i 3 light-draught seagoing ship. ~hi~ entails that as soon as the : ' . '~ .' ' ' , , ' ~ .:
~03653~ :
.': . '`
ship come~ to lie deeper in the water or as soon a~ it is not necessary for the conveyor to extend that ~ar, the height for dumping the materials is useless and results in a high rate of fall so that again dust is formed causing unallowable environmental pollution. ~y using, in accordance with the invention, instead of a sloping chute a telescopic belt conveyor which, ~or that matter, may be of a known type, and with which therefore various ranges can be controlled ;
without falling movement~ of the material occurring and the slope of which belt conveyor moreover can be varied and thus the heights of various seagoing ships can be controlled, it i~ possible to control the oonveyance o~ the materlal as noar a~ po~ible to ito place o:f de~tination and w:Lthout exco0~ive ~ormation o~ dust. ~he belt conveyor may be pivotable with respect to the seaship so that less hauling has to be done.
; ~he hold of a lighter is often covered by a plurality o~ hatch covers, usually between 8 and 13. Before unloading j , , .
they have to be taken from the lighter andtemporarily stored, for whioh purpose a grabbing crane is u~ed in the known transfer installation.
According to the invention a hatch cover platform ~; extends transversely between the pontoons at one end thereo~
while furthermore a hatch cover cràne adapted to li~t hatch covers one by one and place it on the hatch cover platform, can be moved along the hatch cover platform.
An important advantage of the floating unloading installation according to the invention, comprising two pontoons and, in between them, accommodation for a lighter and a vertical conveyor on one of the pontoons and a sloping 0 conveyor for dumping bulk cargo in a seaship, is that with O
.
.03653~ :
a minimum number of hauling movements the entire hold cf the seagoing ship can be attended to. It is true that according to the invention the sloping conveying means has a variable effective length, but it makes an essential difference whether a normal freighter for bulk cargo, a so-called bulk carrier has to be loaded or a so-called L.A.S.H. ship. ~or in normal freighters the central por-tion where the hold is located has to be covered with the sloping conveying means, whereas in ~.A.S,H. ~hips the openings at the side of the ship' 8 deck have to be attended to. In the installation according to the invention the pontoon a~sembly can be placed alongside the ~.A.S.H. ship in a po~ition so that the vertlcal conveyor tower i8 located on the pontoon remote ~rom the ~eagoing ship. It is clear that, in partioular in vlew o~ the combination with the variable effective length o~ the sloping conveying mean~, a great number of side tank filling openings can be attended to without hauling the unloading insta,llation relative to the ship.
An embodiment of the floating unloading installation will now be described and elucidated with reference to the '~
accompanying drawing. ',-...
'' ~he drawing shows in perspective a freighter 1 and , alongside of the freighter a floating unloading installation , ~ 2, composed of two pontoons 3 and 4. ~etween pontoons 3 and ;
',j 4 there i8 shown a lighter 5, the bulk cargo 6 o~ whioh has ' to be trans~erred, to a hold 7 of the freighter 1. The floating ,' unloading installation 2 is fixed with respect to the anchored ' freighter 1 with the aid of cables 8.
~,' The two pontoons 3 and 4 o~ the discharge installation , ,, ,~ , . , ` 30 2 are interconnected, on the one hand by a bridge or ~' .~
.` '. ,;' ~ .
-- 7 -- :
~3~5i3~
~.., portal and, on the other hand, through a hatch cover platform construction 10. On portal 9 there is located a tubular arm ... ;
11, which is supported near the middle thereof on portal 9 -.
in supports 12, which are ei.ther horizontally swivable about the vertical axis, or movable to and fro along rails on ;.
portal 9. At one end o~ the tubular arm 11 there is located an elevator 13, for instance a bucket conveyor, and at the other end a counterweight 14 is provided so that elevator 13 ;~
i8 substantially in balance and when conveyor 13 makes vertical 1~ swivelling movements virtually no displacements of the centre of gravity with respect to the pontoon assembly ~ and 4 occur.
In the tubular arm 11 there is located a conveyor (not ~hown), which convey3 the material rai~ed by elevator 13 in the direction o~ the horizontal portlon o~ portal 9. Between supports 12 the material o~ the conveyor in tube 11 is trans~erred to the conveyor located in the horizontal portion .
of portal 9, which conveys the material to the right-hand side in the drawing, to an installation having the general re~erence ~ .
numeral 15 in the drawing. In this installation a known per se weighing means may be present as well as a vertical conveyor .conveying the material to such a level that it can reach hold 7 of the ship 1 through a sloping conveyor 16. ~he weighing means and the detalls of the construction of the vertical conveyor and any other apparatus in the installation 15 will ;
not be ~urther described, because such apparatu3 are known per se in transfer means o~ the present type.
. According to the invention the 3loping conveyor 16 consi~ts of a telescopic belt conveyor, that i~ to say, a belt conveyor in which the distanoe between the point where , 1036S3~
the material is dumped and the terminal roll can be changed by sliding the entire conveyor to and fro under the point where the material is dumped.
~ he conveyor can also be formed by a succession of conveyor belts that can be displaced with respect to one another, or a conveyor belt in which the distance between the initial roll and the terminal roll can be changed, as known per se. As it is possible to change the effective horizontal conveying distance in conveyor 16, optimum ~
adaptation to the height of freighter 1 is possible and the material can be conveyed as near as po~sible to its place of destination so tha`t ~ree fall o~ the material and dust form~
ation are minimi~ed.
Hatch cover platform 10, like portal 9, extends between the two pontoons 3 and 4. At each end of the deok there ia located a guideway 17 for a carriage 18. Carriages 18 oarry a guideway assembly 19 for a hatch cover crane 22.
With the hatch cover crane 20 the hatch covers of lighter 5 can be lifted and stored on platform 10 during unloading of -~
20 ~ the lighter. `-' ~., ' :' ..`, ~ ~
'. ' . `' ' ' ,' ' ' , '; `' ~ ," '.
., ~, :
, .' ~ ~;.
'; , .'
Claims (8)
1. A floating unloading installation for unloading lighters, said installation comprising two pontoons, connecting means fixedly securing said pontoons together in transversely spaced relation with the spacing between said pontoons being sufficient to accommodate between said pontoons a conventional lighter for movement therebetween, said connecting means including a transverse bridge fixedly mounted on said pontoons, digging means, means mounting said digging means on said bridge in a balanced state and for movement both generally across the space between said pontoons and about a vertical axis to assure the complete unloading of a lighter disposed between said pontoons, said digging means including a digging unit and first conveying means for delivering material from said digging unit to said bridge, said bridge having vertically fixed second conveying means for delivering material to one of said pontoons, and third conveying means for delivering material from said one pontoon away from said installation.
2. The floating unloading installation of Claim 1, wherein said third conveying means includes a vertical conveyor carried by said one pontoon for receiving material from said second conveying means and a distributing conveyor for receiving material from said vertical conveyor and discharging the same outwardly of said installation.
3. The floating unloading installation of Claim 2, wherein said vertical conveyor includes a tower forming part of said bridge.
4. The floating unloading installation of Claim 2, wherein said vertical conveyor includes a tower forming part of said bridge, and means pivotally mounting said distributing conveyor on said tower.
5. The floating unloading installation of claim 2, wherein said distributing conveyor is a sloping belt conveyor having a variable effective horizontal length of conveyance.
6. The floating unloading installation of Claim 5, wherein adjacent ends of said pontoons remote from said bridge there is a hatch cover platform extending between said pontoons and forming part of said connecting means, guideways at ends of said hatch cover platform extending longitudinally of said plontoons, and carriages carried by said guideways supporting a transverse guideway assembly for a hatch cover crane.
7. The floating unloading installation of Claim 1, wherein adjacent ends of said pontoons remote from said bridge there is a hatch cover platform extending between said pontoons and forming part of said connecting means, guideways at ends of said hatch cover platform extending longitudinally of said pontoons, and carriages carried by said guideways supporting a transverse guideway assembly for a hatch cover crane.
8. The floating unloading installation of Claim 1, together with weighing means disposed between said second conveying means and said third conveying means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA238,347A CA1036531A (en) | 1975-10-23 | 1975-10-23 | Floating unloading installation for lighters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA238,347A CA1036531A (en) | 1975-10-23 | 1975-10-23 | Floating unloading installation for lighters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036531A true CA1036531A (en) | 1978-08-15 |
Family
ID=4104360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA238,347A Expired CA1036531A (en) | 1975-10-23 | 1975-10-23 | Floating unloading installation for lighters |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1036531A (en) |
-
1975
- 1975-10-23 CA CA238,347A patent/CA1036531A/en not_active Expired
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