US3446363A - Cargo loading device - Google Patents

Cargo loading device Download PDF

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Publication number
US3446363A
US3446363A US672855A US3446363DA US3446363A US 3446363 A US3446363 A US 3446363A US 672855 A US672855 A US 672855A US 3446363D A US3446363D A US 3446363DA US 3446363 A US3446363 A US 3446363A
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US
United States
Prior art keywords
cargo
block
derrick
boom
swivel
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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 - Lifetime
Application number
US672855A
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English (en)
Inventor
Heinz Ferdinand Johan Sprengel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blohm and Voss GmbH
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Blohm and Voss GmbH
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Publication date
Application filed by Blohm and Voss GmbH filed Critical Blohm and Voss GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/60—Derricks
    • B66C23/605—Derricks employing ships' masts

Definitions

  • the present invention relates to a cargo loading device for shipboard use provided with a derrick hingedly supported at deck level between two posts or masts with a double span or hanger system and two mutually indepenent span or hanger winches and in which guide devices are provided at the head of the derrick boom and at the heads of the post which guide the span tackles in an automatic way.
  • the cargo derrick device according to British specification No. 1,050,225 certainly avoids the aforesaid disadvantages and substantially simplifies the swing through operation.
  • a complicated whip block by which the hauling parts of the cargo tackle are guided is necessary in order to reach the post heads. For smaller loads, about 40 tons and less, the necessary complication is not acceptable when the comparatively small loads are to be moved.
  • This invention is directed to the problem of providing a substantial simplification in the guiding of the cable for the cargo tackle while maintaining at the same time a simple swing through operation as described in said British specification No. 1,050,225.
  • the invention is based 3,446,363 Patented May 27, 1969 on recognition of the fact that with small loads the inclusion of two cargo winches in order to pull on both ends of the cargo tackle is no longer necessary.
  • a pendant block is pivotally arranged at the upper end of the derrick boom at one side on a transversely positioned head pin and embodies at its lower end a swivel to which the upper cargo block is rotatably fitted.
  • a turn plate that is arranged laterally on the upper cargo block which cooperates in both directions with an attachment provided on the derrick boom in such manner that on swinging the derrick boom through the plane of the posts, the upper cargo block is rotated automatically around the swivel.
  • the upper cargo block consists of, for example, several pulleys arranged one beneath the other which hinders an eccentric pull of the hauling part with reference to the swivel.
  • the upper pulley in each case has a somewhat greater diameter than the lower pulley and the pulleys of the upper two-pulley cargo block are so arranged that the center of the lower pulley is offset relatively to the upper pulley on the side of the hauling part.
  • the swivel is pivotally connected to the pendant bock in such manner that the tilting forces appearing as the list or heel of the ship increases cannot act on the cable pulleys of the cargo block and the supports of the swivels. It is furthermore of importance that with the loading device according to the invention, the hauling part is guided downwardly along the derrick boom for which reason the guiding of the derrick by the span tackles is more favorable since in this way the span tensions are not reduced by the hauling part and the fixed part of the cargo tackle when this is guided in known way to the heads of the posts.
  • FIG. 1 is a perspective view of the cargo loading device
  • FIG. 2 shows diagrammatically three working positions of the derrick
  • FIG. 3 shows the upper section of the derrick on a larger scale
  • FIG. 4 shows the derrick diagrammatically as seen from above in different working positions.
  • a derrick boom 3 is supported in known manner in a foot hearing or gooseneck 4 between the two posts 2.
  • the derrick boom 3 at its upper end has a head pin 5 which extends through and is arranged crosswise or transversely of the axis of the boom 3 as seen in FIG. 3.
  • the head pin 5 carries a swivel 6 supporting a span block 7 by means of connector rods 8.
  • the same arrangement is provided at the other side of the boom 3 on the head pin 5 but externally of a cargo block pendant 17 yet to be described.
  • Span tackles 9 run to hollow rotary head parts 10 located on the upper ends of the posts 2 which head parts 10 are rotatable through 360 and to which the span blocks 11 are fitted.
  • the hauling parts 12 of the span tackles 9 lead from the span blocks 7 over guide pulleys 13 arranged on the rotary head parts 10 of the posts 2, these parts 12 passing into the hollow posts 2 and over guide pulleys 14, 15 then outwardly through a slot in the respective post walls to the associated winches which are not otherwise shown.
  • An upper cargo block 16 is supported from the pendant 17 which is rotatable on the head pin 5 at one side of boom 3.
  • a swivel 18 is fitted to the pendant 17 on which in turn the upper cargo block 16 is fitted.
  • Turn plates 19 are fitted to the upper cargo block 16 and a lug 20 is fitted to the derrick boom 3 so that on swinging the derrick boom 3 through the plane of the posts 2, lug 20 engages turn plates 19 to automatically rotate the upper cargo block 16 so that the hauling part 21 of a cargo tackle 22 always runs correctly on to and from the upper cargo block 16.
  • One end of the cargo tackle 22 is fastened, for example, to the lower cargo block 23 provided with the cargo hook 24 while the hauling part 21 of the cargo tackle 22 runs, for example, from the upper pulley of the top cargo block 16 in the general direction of the boom 3 to a guide pulley 27 which latter is fastened, for example, to the foot of the boom 3 or to the foot hearing or gooseneck 4 and then passes to the cargo winch, not shown.
  • FIG. 3 the constructional details of the cargo loading equipment according to the invention are shown on a larger scale. That position of the upper cargo block 16 is shown which it adopts when it is rotated through about 90 relative to its initial working position by the turn plate 19 and the lug 20.
  • the pendant 17 is rotatably suspended about the head pin 5 at its right-hand side, the latter being fastened to extend transversely through the boom 3 at the upper end thereof.
  • the top cargo block 16 is suspended by the swivel 18 on the pendant 17, the respective blocks 16 being, for example, of the two-pulley type.
  • the two pulleys of said block 16 are arranged beneath one another and in the second place the upper pulley has a somewhat larger diameter than the lower pulley.
  • the turn plates 19 are fitted at right angles to the plane of the cable pulleys and immediately beneath the swivel 18 and are fixed to the block body of the top cargo block 16.
  • the lug 20 is fixed at a corresponding level to the boom or derrick 3 so that on swinging of the latter through the plane of the posts 2, the upper cargo block 16 is rotated by engagement of said lug 20 with one of the turn plates 19.
  • the ratio between the length of the derrick boom 3 and the height of the posts 2 can be selected as desired according to requirements; no changes are required as regards the construction of the head of the derrick or boom 3.
  • the method of operation of the arrangement according to the invention is as follows: Initially, the derrick boom 3 is swung out in the position A shown in FIG. 2. The hauling part 21 of the cargo tackle 22 then runs from the upper pulley of the cargo block 16 on the derrick boom 3 downwardly over guide elements to the associated cargo winch which is not shown. If the derrick boom 3 is swung to the upright or nearly upright position between the posts 2 (position B in FIG. 2), by means of the span tackles (see FIG. 1), the cargo tackle 22 swings laterally around the head pin. 5 to a point adjacent to the boom 3.
  • the upper cargo block 16 is rotated around the swivel 18 on the cargo pendant 17 through approximately by means of engagement of the lug 20 and one of the turn plates 19 on the upper cargo block 16.
  • the cargo tackle 22 with the lower cargo block 23 and the cargo hook 24 remains extended and rotates freely. It must now be raised so far that the lower cargo block 23 with the cargo hook 24 passes freely through, that is to say, it does not interfere with the winches and other parts mounted on the deck 1.
  • the derrick boom 3 can be pulled by a small tension, for example, towards the right into the position C, of FIG. 2.
  • the upper cargo block 16 is further rotated around the swivel 18 by the tension in the hauling part 21 so that finally the upper cargo block 16 with the cargo tackle 22 as well as the lower block 23 and the cargo hook 24 are rotated practically through from the position A shown in FIG. 2.
  • the derrick boom 3 is swung towards the right.
  • the hauling part 21 of the cargo tackle 22 runs now in like manner over guide elements, not shown, to the same associated cargo winch.
  • the cargo tackle 22 is rotated by about 180 around the swivel 18 relatively to the position A during the swing to position C.
  • the derrick boom 3 is pulled by the span winches to the approximately upright position between the posts 2 and after pulling it over the labile upright dead-center position is brought to this new working position by slackening the span winches.
  • Any desired attachments may be fitted to the lower cargo block 23 such as single hooks, double hooks or cargo shackles.
  • a swivel eye may obviously be fitted as before to the lower cargo block 23 of the cargo tackle 22 to which a wide range of attachment elements can be fitted.
  • the span tackles 9 are not released from load by the pull in the hauling part 21 whereby the guiding of the derrick 3 by the two span tackles 9 is more effective and which is of g t p a c p r icu a y tor the smal er loa on the hook 24 and the resulting and even necessary greater tilt speeds.
  • Only one cargo winch is required having a substantially smaller output and with a substantially simplified suspension (in the present case the novel block pendant 17) whereby the total cost of the derrick boom 3 is much less corresponding to the smaller load.
  • the loading device provided according to the invention thus represents an economic solution as compared with that previously known for small loads while maintaining the known particular advantages of the double suspension equipment and the simplicity of the swing through maneuver.
  • FIG. 4 The method of operation of the loading equipment according to the invention is shown diagrammatically in FIG. 4 from above.
  • the derrick boom 3 in the position A which is similar to the position A of FIG. 2.
  • the derrick boom 3 is swung to the approximately upright position by means of the span tackles 9, not shown in FIG. 4, to the position B the left-hand turn plate 19 on the upper cargo block 16 engages the lug 20 on the derrick boom 3 and the cargo block 16 is rotated to the left around the swivel 18, not shown.
  • a ship loading device which for small loads and with a simplified construction has the same advantages as the known constructions for heavy loads and, furthermore, by the nature of the guidance of the hauling parts of the cargo tackle a reliable arrangement and swing of the derrick is ensured which is of advantage particularly for smaller loads since they must in the nature of things be loaded more rapidly, that is, both hoisted and swung.
  • This new loadingequipment is particularly suitable for handling containers where a large number of separate containers must be handled rapidly, precisely and safely for on and oh loading.
  • Cargo loading device comprising a derrick boom pivotally supported on a deck, two masts mounted on the deck between which the derrick boom may be swung, mutually independent span means for so swinging said derrick boom, said means including mutually independently operable span tackles respectively connected between said masts and said derrick boom, guide means at the head of said derrick boom and at the heads of said masts to guide the span tackles automatically, a transversely extending head pin mounted on said derrick boom, a block pendant pivotally arranged on said head pin at one side of said boom, a swivel carried by said pendant whose axis extends transversely to that of said head pin and an upper cargo block rotatably secured to said swivel and being rotatable about said axis of said swivel, and means to so rotate said upper cargo block about said axis of said swivel on swinging through said derrick boom from between the plane of the masts.
  • said last-named means including a turn plate disposed laterally on the upper cargo block, and a lug provided on the derrick boom which cooperates alternatively with said turn plate so that on swinging through of the derrick boom between the plane of the masts the upper cargo block is auomatically rotated around the swivel.
  • Cargo loading device including tackle and a hauling part connected to the upper cargo block and wherein the upper cargo block comprises several pulleys arranged one over the other which hinder an eccentric pull of the hauling part with reference to the swivel.
  • Cargo loading device according to claim 1, wherein the upper cargo block embodies a plurality of pulleys in superposed relationship and in which the upper pulley has a larger diameter than the lower pulley.
  • Cargo loading device according to claim 1, wherein the cargo block has cable pulleys and wherein the swivel is pivotally suspended from the block pendant so that tilting forces occurring on substantial listing of the deck cannot act on the cable pulleys of the cargo block and the support for the swivel.
  • Cargo loading device including guide means for the hauling part of the cargo tackle to guide said hauling part downwardly along the derrick boom.
  • Cargo loading device comprising a derrick boom pivotally supported on a deck, two masts mounted on said deck between which the derrick boom may be swung, mutually independent span means for so swinging said derrick boom, said means including mutually independently operable span tackles respectively connected between said masts and said derrick boom, guide means at the head of said derrick boom and at the heads of said masts to guide said span tackles automatically, a transversely extending head pin mounted on said derrick boom, a block pendant pivotally mounted on said head pin at one side of said derrick boom, a swivel carried by said pendant whose axis extends transversely to that of said head pin, an upper cargo block rotatably secured to said swivel and being rotatable about said axis of said swivel, a lower cargo block, hauling tackle connecting the upper and lower cargo blocks and including a hauling part, and guide means along said boom for said hauling part, and means to so rotate said upper cargo block about said axis of said
  • Cargo loading device including interengageable means on said derrick boom and on said upper cargo block to rotate the latter on said axis of said swivel during swing of said derrick boom.
  • Cargo loading device according to claim 8, wherein said upper cargo block includes superposed pulleys, the upper most pulley being being of larger diameter than the lowermost pulley.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Ship Loading And Unloading (AREA)
US672855A 1966-11-18 1967-10-04 Cargo loading device Expired - Lifetime US3446363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB89882A DE1260334B (de) 1966-11-18 1966-11-18 Schiffsladevorrichtung

Publications (1)

Publication Number Publication Date
US3446363A true US3446363A (en) 1969-05-27

Family

ID=6984994

Family Applications (1)

Application Number Title Priority Date Filing Date
US672855A Expired - Lifetime US3446363A (en) 1966-11-18 1967-10-04 Cargo loading device

Country Status (12)

Country Link
US (1) US3446363A (fr)
BE (1) BE699323A (fr)
DE (1) DE1260334B (fr)
DK (1) DK133185C (fr)
ES (1) ES341630A1 (fr)
FI (1) FI47551C (fr)
FR (1) FR1530063A (fr)
GB (1) GB1123040A (fr)
GR (1) GR33826B (fr)
NL (1) NL6709398A (fr)
NO (1) NO120661B (fr)
SE (1) SE308673B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768664A (en) * 1972-01-12 1973-10-30 Warnowwerft Warnemuende Veb Ship loading boom installation having loading and suspension tackles and automatic guide blocks for positioning the suspension tackle by the load tackle
US4174579A (en) * 1978-03-03 1979-11-20 Bucyrus-Erie Company Twin boom dragline
EP0049001A1 (fr) * 1980-09-24 1982-04-07 Itrec B.V. Dispositif de levage, en particulier navire à mât de charge
CN114275719A (zh) * 2020-09-27 2022-04-05 上海梅山钢铁股份有限公司 水沟雨水盖板专用吊具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517249A (en) * 1946-09-27 1950-08-01 Serrell Peter Van Horne Combined front and side shackle block
US2546683A (en) * 1947-01-17 1951-03-27 Nat Supply Co Crown and traveling blocks and a reeving system therefor
GB766718A (en) * 1954-02-11 1957-01-23 Heinrich Wilhelm Arthur Von Di Improvements in or relating to ships' derricks
US3226088A (en) * 1963-07-16 1965-12-28 American Telephone & Telegraph Apparatus for pulling cable through underground conduit
US3236390A (en) * 1964-04-17 1966-02-22 H C Stulcken Sohn Ship's cargo boom with pendulum purchase block fitting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205414B (de) * 1961-05-24 1965-11-18 Ministerul Metalurgiei Si Cons Schiffsladeeinrichtung mit zwischen zwei Saeulen schwingendem Ladebaum
DE1181088B (de) * 1963-10-12 1964-11-05 H C Stuelcken Sohn Schiffsladevorrichtung mit Ladebaum und Blockwippe zum freien Durchpendeln der Ladetalje zwischen den Pfosten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517249A (en) * 1946-09-27 1950-08-01 Serrell Peter Van Horne Combined front and side shackle block
US2546683A (en) * 1947-01-17 1951-03-27 Nat Supply Co Crown and traveling blocks and a reeving system therefor
GB766718A (en) * 1954-02-11 1957-01-23 Heinrich Wilhelm Arthur Von Di Improvements in or relating to ships' derricks
US3226088A (en) * 1963-07-16 1965-12-28 American Telephone & Telegraph Apparatus for pulling cable through underground conduit
US3236390A (en) * 1964-04-17 1966-02-22 H C Stulcken Sohn Ship's cargo boom with pendulum purchase block fitting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768664A (en) * 1972-01-12 1973-10-30 Warnowwerft Warnemuende Veb Ship loading boom installation having loading and suspension tackles and automatic guide blocks for positioning the suspension tackle by the load tackle
US4174579A (en) * 1978-03-03 1979-11-20 Bucyrus-Erie Company Twin boom dragline
EP0049001A1 (fr) * 1980-09-24 1982-04-07 Itrec B.V. Dispositif de levage, en particulier navire à mât de charge
CN114275719A (zh) * 2020-09-27 2022-04-05 上海梅山钢铁股份有限公司 水沟雨水盖板专用吊具
CN114275719B (zh) * 2020-09-27 2023-09-05 上海梅山钢铁股份有限公司 水沟雨水盖板专用吊具

Also Published As

Publication number Publication date
DK133185B (da) 1976-04-05
NO120661B (fr) 1970-11-16
BE699323A (fr) 1967-11-16
GR33826B (el) 1968-02-08
DK133185C (da) 1976-10-04
SE308673B (fr) 1969-02-17
GB1123040A (en) 1968-08-07
FI47551C (fi) 1974-01-10
FR1530063A (fr) 1968-06-21
ES341630A1 (es) 1968-07-01
DE1260334B (de) 1968-02-01
NL6709398A (fr) 1968-05-20
FI47551B (fr) 1973-10-01

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