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GB910074A - An improved derrick construction - Google Patents

An improved derrick construction

Info

Publication number
GB910074A
GB910074A GB2161961A GB2161961A GB910074A GB 910074 A GB910074 A GB 910074A GB 2161961 A GB2161961 A GB 2161961A GB 2161961 A GB2161961 A GB 2161961A GB 910074 A GB910074 A GB 910074A
Authority
GB
United Kingdom
Prior art keywords
winches
boom
winch
topping
motor
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
Application number
GB2161961A
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2161961A priority Critical patent/GB910074A/en
Publication of GB910074A publication Critical patent/GB910074A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

910,074. Derricks. MANDELLI, A. June 15, 1961, No. 21619/61. Class 78 (4). Both the hoisting winch 16 and the topping winch 7 of a derrick are mounted on the boom 3, the topping cable 4 passing over a pulley 6 to the boom-supporting, structure. As described, both winches are driven by a motor 11 through worms 9, 18 and gears 8, 17. So that the winches may be used independently, a clutch 10 is provided. When the topping winch is operated, the hoisting winch also turns so that level luffing is provided. The motor could be arranged with its axis parallel to those of the winches and it and/or one or both of the winches could be placed above the boom. Alternatively, separate motors may be provided for the two winches.
GB2161961A 1961-06-15 1961-06-15 An improved derrick construction Expired GB910074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2161961A GB910074A (en) 1961-06-15 1961-06-15 An improved derrick construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2161961A GB910074A (en) 1961-06-15 1961-06-15 An improved derrick construction

Publications (1)

Publication Number Publication Date
GB910074A true GB910074A (en) 1962-11-07

Family

ID=10165976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2161961A Expired GB910074A (en) 1961-06-15 1961-06-15 An improved derrick construction

Country Status (1)

Country Link
GB (1) GB910074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634160A1 (en) * 1996-08-23 1998-02-26 Fred Koch Hoist with lateral reach e.g. for lifting cooking vessel for catering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634160A1 (en) * 1996-08-23 1998-02-26 Fred Koch Hoist with lateral reach e.g. for lifting cooking vessel for catering
DE19634160B4 (en) * 1996-08-23 2008-06-26 Fred Koch hoist

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