FR2265663A2 - Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations - Google Patents

Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations

Info

Publication number
FR2265663A2
FR2265663A2 FR7410554A FR7410554A FR2265663A2 FR 2265663 A2 FR2265663 A2 FR 2265663A2 FR 7410554 A FR7410554 A FR 7410554A FR 7410554 A FR7410554 A FR 7410554A FR 2265663 A2 FR2265663 A2 FR 2265663A2
Authority
FR
France
Prior art keywords
safety system
compensator
ground pressure
cct
jack
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
FR7410554A
Other languages
English (en)
Other versions
FR2265663B2 (fr
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.)
BARBIEUX PIERRE FR
Original Assignee
BARBIEUX PIERRE FR
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 BARBIEUX PIERRE FR filed Critical BARBIEUX PIERRE FR
Priority to FR7410554A priority Critical patent/FR2265663A2/fr
Publication of FR2265663A2 publication Critical patent/FR2265663A2/fr
Application granted granted Critical
Publication of FR2265663B2 publication Critical patent/FR2265663B2/fr
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/88Safety gear
    • B66C23/90Devices for indicating or limiting lifting moment
    • B66C23/905Devices for indicating or limiting lifting moment electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
FR7410554A 1974-03-27 1974-03-27 Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations Granted FR2265663A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7410554A FR2265663A2 (en) 1974-03-27 1974-03-27 Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7410554A FR2265663A2 (en) 1974-03-27 1974-03-27 Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations

Publications (2)

Publication Number Publication Date
FR2265663A2 true FR2265663A2 (en) 1975-10-24
FR2265663B2 FR2265663B2 (fr) 1976-12-17

Family

ID=9136895

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7410554A Granted FR2265663A2 (en) 1974-03-27 1974-03-27 Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations

Country Status (1)

Country Link
FR (1) FR2265663A2 (fr)

Also Published As

Publication number Publication date
FR2265663B2 (fr) 1976-12-17

Similar Documents

Publication Publication Date Title
ES371261A1 (es) Perfeccionamientos en organos de control de la carga admi- sible aplicables a gruas de aguilon telescopico.
GB759187A (en) Improvements in or relating to mobile working platforms
GB1402602A (en) Crane having a safety device
GB847656A (en) Improvements in or relating to control systems for power driven machines with jibs
FR2534237B1 (fr) Grue roulante de grande force portante a fleche extensible, notamment a fleche telescopique
GB1394265A (en) Multi-stage hoist and control system therefor
FR2265663A2 (en) Platform jack safety system - has ground pressure curve correction cct. and compensator for pressure variations
ES8203787A1 (es) Circuito de control de seguridad para un aguilon
ES2076869A2 (es) Extension de brazo para gruas de portico
GB1276650A (en) Apparatus for transporting and assembling a vehicular bridge
ES432741A1 (es) Perfeccionamientos en seguros de par de vuelco para gruas de pluma telescopica hidraulica.
ES452543A1 (es) Perfeccionamientos en conjuntos de mastil de carretillas elevadoras.
ES415619A1 (es) Dispositivos de proteccion contra sobrecarga en los monta- cargas o elevadores.
GB1117438A (en) Improvements in or relating to jacking apparatus
GB980132A (en) Improvements in safe load indicating devices for cranes
GB1291399A (en) Truck-mounted crane
GB1119508A (en) Improvements to devices for telescoping masts or towers, mainly for use in cranes
ES438036A1 (es) Perfeccionamientos en aguilones telescopicos para gruas.
ES459207A1 (es) Aparato para la elevacion y sustentacion aerea de platafor- mas.
GB1345362A (en) Detecting deformations in structures
CN220037120U (zh) 一种用于高空作业机械的支腿液压系统及伸缩臂叉装车
JPS5243250A (en) Safety device for crane
GB989679A (en) Preventing rotary cranes from overturning
GB771282A (en) Hydraulic telescopic hoisting apparatus
FR2252279A1 (en) Folding tower crane jib erection system - has tie rope from tailweight jib always held taut by sliding crossbeam