GB157299A - Improvements relating to tower cranes - Google Patents

Improvements relating to tower cranes

Info

Publication number
GB157299A
GB157299A GB1210/21A GB121021A GB157299A GB 157299 A GB157299 A GB 157299A GB 1210/21 A GB1210/21 A GB 1210/21A GB 121021 A GB121021 A GB 121021A GB 157299 A GB157299 A GB 157299A
Authority
GB
United Kingdom
Prior art keywords
cranes
standard
rails
improvements relating
rail
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
GB1210/21A
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.)
WILHELM PROLLIUS
Original Assignee
WILHELM PROLLIUS
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 WILHELM PROLLIUS filed Critical WILHELM PROLLIUS
Publication of GB157299A publication Critical patent/GB157299A/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
    • B66C23/18—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 specially adapted for use in particular purposes

Landscapes

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

Abstract

157,299. Prollius, W. Dec. 19, 1919, [Convention date]. Jib cranes; transporters.-Two cranes a, each supported on a single rail b, are maintained in the upright position by arms carrying horizontal rollers engaging other rail tracks on the top of a standard e. With this arrangement the cranes can pass one another when both are used between the same pair of slipways and by swinging one of the cantilever bridges through a half circle from the position shown, both cranes can be used to lift a single object. The standard e is constructed with downwardly diverging sides, so that loads raised vertically from trucks run under it, will clear the sides before reaching the level of the upper rails, thus permitting the cranes to be traversed along the rails with the minimum expenditure of power in hoisting.
GB1210/21A 1919-12-19 1921-01-10 Improvements relating to tower cranes Expired GB157299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE157299X 1919-12-19

Publications (1)

Publication Number Publication Date
GB157299A true GB157299A (en) 1922-04-06

Family

ID=5678548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210/21A Expired GB157299A (en) 1919-12-19 1921-01-10 Improvements relating to tower cranes

Country Status (1)

Country Link
GB (1) GB157299A (en)

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