US3191779A - Anti-pendulum crane rigging - Google Patents

Anti-pendulum crane rigging Download PDF

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Publication number
US3191779A
US3191779A US293797A US29379763A US3191779A US 3191779 A US3191779 A US 3191779A US 293797 A US293797 A US 293797A US 29379763 A US29379763 A US 29379763A US 3191779 A US3191779 A US 3191779A
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US
United States
Prior art keywords
jib
rope
winding drum
load
pulley
Prior art date
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Expired - Lifetime
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US293797A
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English (en)
Inventor
John S Thomson
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Individual
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Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10261152&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3191779(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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Publication of US3191779A publication Critical patent/US3191779A/en
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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
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • 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

  • This invention relates to cranes, particularly but not exclusively to ships cranes in which the load is suspended by a winch rope from a pulley on a jib which jib can be slewed and/or lufied with respect to the ships deck.
  • a crane including a winch having at least one winding drum, a jib adapted to be pivotally mounted on the deck of a ship for lufling and slewing movements, first pulley means attached to the outer end of said jib, an outrigger mounted on the jib and extending to opposite sides thereof, two second pulleys mounted on the outrigger on opposite sides of the jib, a load supporting rope, a load pulley block supported by said rope, said rope having its free ends wound round the winding drum in the same direction, the rope then passing in parallel reaches from the winding drum and then round the first pulley means, downwardly to the pulley block and therearound and thereafter the reaches diverge upwardly and form a loop passing over the second pulleys.
  • FIG. 1 is a perspective view of a crane illustrating the invention.
  • a crane is mounted on a ships deck and includes two upright columns 10, 1% secured to the deck and connected at their top ends by a cross member 11, said cross member mounting a medial stationary pulley block 12. Also mounted on the deck is a winch 13 and a flanged pivotal support 14 midway between the columns to which is attached a jib 15 so that said jib is adapted for luffing and slewing movement with respect to the ships deck. At its outer end the jib 15 mounts first pulley means in the form of two similar pulley blocks 16, 16 each having two pulleys.
  • a transverse frame indicated at 17 which comprises two arms 18, 18 which extend oppositely and outwardly from the jib 15, each of said arms 18, 18 mounting second pulley means 19, 19 on opposite sides of the jib 15.
  • a suspended pulley block 20 forms a point of load attachment for the crane, said suspended pulley block 20 being supported by load supporting rope means 21.
  • load supporting rope means when used hereinafter and in the claims is intended to embrace fibre rope, wire rope and any other known elongated load supporting member.
  • the load supporting rope means 21 comprises a single length of rope having free ends which are wound round a winding drum 22 of the winch 13 in the same direction, so that as the winding drum 22 rotates both ends of the rope are fed out or wound in depending on the direction of drum rotation.
  • the rope is led from the winding drum 22 to the pulley block 16, 16 by way of the medial stationary pulley block 12 and therearound, then downwardly to the pulley block 20 and thereafter in a loop round the second pulley means 19, 19, so that the suspended pulley block 20 is supported by mutually converging rope reaches 21'.
  • the winding drum 22 may be provided in two parts, one end of the rope wound round one part of the drum and the other end wound round the other part of the drum, both parts being selectively windable while the other part is held, that is the rope may be wound in on one part of the drum, thus providing a lower velocity ratio of lifting.
  • a crane including a winch having at least one winding drum, a jib adapted to be pivotally mounted on the deck of a ship for lufling and slewing movements, first pulley means attached to the outer end of said jib, an outrigger mounted on the jib and extending to opposite sides thereof, two second pulleys mounted on the outrigger on opposite sides of the jib, a load supporting rope, a load pulley block supported by said rope, said rope having its free ends wound round the winding drum in the same direction, the rope then passing in parallel reaches from the winding drum and then round the first pulley means, downwardly to the pulley block and therearound and thereafter the reaches diverge upwardly and form a loop passing over the second pulleys.
  • a crane according to claim 1 including two upright columns, a cross member joining the upper ends of said columns, a supporting pulley block supported on said cross member, and the parallel rope reaches being trained round said supporting pulley block before passing to said first pulley means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
US293797A 1962-07-18 1963-07-09 Anti-pendulum crane rigging Expired - Lifetime US3191779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27534/62A GB1049863A (en) 1962-07-18 1962-07-18 Improvements relating to cranes

Publications (1)

Publication Number Publication Date
US3191779A true US3191779A (en) 1965-06-29

Family

ID=10261152

Family Applications (1)

Application Number Title Priority Date Filing Date
US293797A Expired - Lifetime US3191779A (en) 1962-07-18 1963-07-09 Anti-pendulum crane rigging

Country Status (5)

Country Link
US (1) US3191779A (es)
DE (1) DE1224898B (es)
ES (1) ES290306A1 (es)
GB (1) GB1049863A (es)
NL (1) NL295419A (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353687A (en) * 1965-03-10 1967-11-21 John S Thomson Cranes
US3508667A (en) * 1968-06-03 1970-04-28 Lake Shore Inc Antipendulation crane with damped sheave on bight of hoist rope
US3567040A (en) * 1967-06-09 1971-03-02 John S Thomson Luffing and slewing jib crane
US3685669A (en) * 1970-05-04 1972-08-22 Speedcranes Ltd Derrick cranes and swinging derricks
US4010852A (en) * 1975-05-30 1977-03-08 Goss John B Sheaving arrangement
US20110163057A1 (en) * 2008-08-25 2011-07-07 Bjoershol Oeyvind Device for a crane for movement control of a hoisting wire, and uses thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112270B (de) * 1959-05-08 1961-08-03 Asea Ab Wippkran mit waagerechtem Lastweg
US3062383A (en) * 1959-05-08 1962-11-06 Asea Ab Luffing crane mechanism
US3065862A (en) * 1960-04-14 1962-11-27 C H Wheeler Mfg Co Method to prevent a load from swinging during hoisting and turning of a crane
US3107791A (en) * 1962-11-26 1963-10-22 Lake Shore Inc Load handling apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939491C (de) * 1954-04-06 1956-02-23 H C Stuelcken Sohn Schiffsladevorrichtung mit einem zwischen zwei Pfosten hindurchschwingbaren Ladebaum
DE1020544B (de) * 1955-12-08 1957-12-05 Paul A H Lembke Schiffsladegeschirr, bestehend aus einem zwischen zwei Pfosten durchschwingbaren Ladebaum
US2933197A (en) * 1956-05-10 1960-04-19 Clyde Iron Works Inc Cargo cranes
DE1043129B (de) * 1957-07-24 1958-11-06 Schiffskonstruktion Und Entwic Schiffsladegeschirr mit einem Ladebaum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112270B (de) * 1959-05-08 1961-08-03 Asea Ab Wippkran mit waagerechtem Lastweg
US3062383A (en) * 1959-05-08 1962-11-06 Asea Ab Luffing crane mechanism
US3065862A (en) * 1960-04-14 1962-11-27 C H Wheeler Mfg Co Method to prevent a load from swinging during hoisting and turning of a crane
US3107791A (en) * 1962-11-26 1963-10-22 Lake Shore Inc Load handling apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353687A (en) * 1965-03-10 1967-11-21 John S Thomson Cranes
US3567040A (en) * 1967-06-09 1971-03-02 John S Thomson Luffing and slewing jib crane
US3508667A (en) * 1968-06-03 1970-04-28 Lake Shore Inc Antipendulation crane with damped sheave on bight of hoist rope
US3685669A (en) * 1970-05-04 1972-08-22 Speedcranes Ltd Derrick cranes and swinging derricks
US4010852A (en) * 1975-05-30 1977-03-08 Goss John B Sheaving arrangement
US20110163057A1 (en) * 2008-08-25 2011-07-07 Bjoershol Oeyvind Device for a crane for movement control of a hoisting wire, and uses thereof
US9061867B2 (en) * 2008-08-25 2015-06-23 Rolls-Royce Marine As Device for a crane for movement control of a hoisting wire, and uses thereof

Also Published As

Publication number Publication date
NL295419A (es)
DE1224898B (de) 1966-09-15
GB1049863A (en) 1966-11-30
ES290306A1 (es) 1964-01-01

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