FR2383286A2 - Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston - Google Patents

Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston

Info

Publication number
FR2383286A2
FR2383286A2 FR7706576A FR7706576A FR2383286A2 FR 2383286 A2 FR2383286 A2 FR 2383286A2 FR 7706576 A FR7706576 A FR 7706576A FR 7706576 A FR7706576 A FR 7706576A FR 2383286 A2 FR2383286 A2 FR 2383286A2
Authority
FR
France
Prior art keywords
girder
lifting
piston
control system
level control
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.)
Granted
Application number
FR7706576A
Other languages
French (fr)
Other versions
FR2383286B2 (en
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.)
Costamagna & Cie B M
Original Assignee
Costamagna & Cie B M
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 Costamagna & Cie B M filed Critical Costamagna & Cie B M
Priority to FR7706576A priority Critical patent/FR2383286A2/en
Publication of FR2383286A2 publication Critical patent/FR2383286A2/en
Application granted granted Critical
Publication of FR2383286B2 publication Critical patent/FR2383286B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/04—Discharging the shaped articles
    • B28B13/06—Removing the shaped articles from moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The lifting gantry for prestressed concrete girders, as in the main patent, has two uprights (1, 2) joined at the top by a girder (3), and running on wheels (4) at the bottom. The girder (3) has a jack (7) for lifting, to the top of which are fixed two cables (8, 9) for keeping the girder horizontal whilst being lifted. The cable (8) runs over guide pulleys (11, 12) above the ends of the lower girder (5), and is hooked onto one (13) of the ends of the lower girder. The other cable (9) runs over the guide pulley (14) positioned straight above the other end (15) of the lower girder to which it is attached. Alternatively, the mobile girder acts as a hoist and bracing for the two uprights.
FR7706576A 1977-03-07 1977-03-07 Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston Granted FR2383286A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7706576A FR2383286A2 (en) 1977-03-07 1977-03-07 Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706576A FR2383286A2 (en) 1977-03-07 1977-03-07 Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston

Publications (2)

Publication Number Publication Date
FR2383286A2 true FR2383286A2 (en) 1978-10-06
FR2383286B2 FR2383286B2 (en) 1982-07-30

Family

ID=9187653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706576A Granted FR2383286A2 (en) 1977-03-07 1977-03-07 Concrete girder lifting gantry - has level control system on lifting beam with cable drive operated by piston

Country Status (1)

Country Link
FR (1) FR2383286A2 (en)

Also Published As

Publication number Publication date
FR2383286B2 (en) 1982-07-30

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