GB1344885A - Hydraulically operated grabs - Google Patents

Hydraulically operated grabs

Info

Publication number
GB1344885A
GB1344885A GB3724471A GB3724471A GB1344885A GB 1344885 A GB1344885 A GB 1344885A GB 3724471 A GB3724471 A GB 3724471A GB 3724471 A GB3724471 A GB 3724471A GB 1344885 A GB1344885 A GB 1344885A
Authority
GB
United Kingdom
Prior art keywords
relay
contacts
motor
switch
circuit
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
GB3724471A
Other languages
English (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.)
Mannesmann Demag AG
Original Assignee
Demag AG
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 Demag AG filed Critical Demag AG
Publication of GB1344885A publication Critical patent/GB1344885A/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
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • 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
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/087—Electrical assemblies or electrical control devices for electrically actuated grabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
GB3724471A 1971-03-04 1971-08-09 Hydraulically operated grabs Expired GB1344885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712110352 DE2110352B2 (de) 1971-03-04 1971-03-04 Hydraulikgreifer mit einem elektrisch gesteuerten Motor

Publications (1)

Publication Number Publication Date
GB1344885A true GB1344885A (en) 1974-01-23

Family

ID=5800521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3724471A Expired GB1344885A (en) 1971-03-04 1971-08-09 Hydraulically operated grabs

Country Status (2)

Country Link
DE (1) DE2110352B2 (de)
GB (1) GB1344885A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021560A1 (en) * 2008-08-19 2010-02-25 Sc Dalasoil Srl Tower crane with bucket grab for vestigial oil process
CN110526154A (zh) * 2019-09-05 2019-12-03 麦特汽车服务股份有限公司 一种可分组级联的移动举升机装置及其控制方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806816B4 (de) * 1998-02-18 2005-04-14 Rohr Gmbh Motor-Unterwassergreifer mit Überwachungseinrichtung
DE20310240U1 (de) * 2003-07-03 2003-09-11 Wolfgang Rohr Gmbh & Co Kg Motorgreifer, insbesondere Motorunterwassergreifer
CN108361244B (zh) * 2018-04-19 2023-12-19 河南华润电力首阳山有限公司 一种基于快关阀的故障报警系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021560A1 (en) * 2008-08-19 2010-02-25 Sc Dalasoil Srl Tower crane with bucket grab for vestigial oil process
CN110526154A (zh) * 2019-09-05 2019-12-03 麦特汽车服务股份有限公司 一种可分组级联的移动举升机装置及其控制方法

Also Published As

Publication number Publication date
DE2110352A1 (de) 1972-09-14
DE2110352B2 (de) 1978-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee