FR976916A - Control device for opening and closing a clamshell for crane - Google Patents

Control device for opening and closing a clamshell for crane

Info

Publication number
FR976916A
FR976916A FR976916DA FR976916A FR 976916 A FR976916 A FR 976916A FR 976916D A FR976916D A FR 976916DA FR 976916 A FR976916 A FR 976916A
Authority
FR
France
Prior art keywords
clamshell
crane
closing
opening
control device
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
Other languages
French (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.)
BAILLY FRERES SOC
Original Assignee
BAILLY FRERES SOC
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 BAILLY FRERES SOC filed Critical BAILLY FRERES SOC
Application granted granted Critical
Publication of FR976916A publication Critical patent/FR976916A/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
    • B66C3/12—Grabs actuated by two or more ropes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR976916D 1948-10-26 1948-10-26 Control device for opening and closing a clamshell for crane Expired FR976916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR976916T 1948-10-26

Publications (1)

Publication Number Publication Date
FR976916A true FR976916A (en) 1951-03-23

Family

ID=9519233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976916D Expired FR976916A (en) 1948-10-26 1948-10-26 Control device for opening and closing a clamshell for crane

Country Status (1)

Country Link
FR (1) FR976916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532925A1 (en) * 1982-09-13 1984-03-16 Frankignoul Pieux Armes DEVICE FOR SUSPENSION OF A GRAPPIN OR CUTTING BUCKET AND GRAPPLE APPARATUS OR CUTTING BUCKET COMPRISING SAID DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532925A1 (en) * 1982-09-13 1984-03-16 Frankignoul Pieux Armes DEVICE FOR SUSPENSION OF A GRAPPIN OR CUTTING BUCKET AND GRAPPLE APPARATUS OR CUTTING BUCKET COMPRISING SAID DEVICE

Similar Documents

Publication Publication Date Title
FR976916A (en) Control device for opening and closing a clamshell for crane
FR992792A (en) Device for controlling the opening and closing of electrical circuits
FR1354166A (en) Device for controlling the opening and closing of stepped-action electric circuits
FR979715A (en) Improved handle device for controlling the closing device of car doors
FR1029456A (en) Advanced device for closing and opening doors
FR1032025A (en) Door opening and closing device
FR966157A (en) Closing device for doors or the like
FR968237A (en) Device for automatically controlling the opening and closing of a skip
FR58712E (en) Device for automatically controlling the opening and closing of a skip
FR966341A (en) Device for opening and closing waterproof watch cases
FR970264A (en) Control device for opening and closing the cylinders of combustion engines
FR59210E (en) Device for automatically controlling the opening and closing of a skip
FR976907A (en) Device for opening doors
CH265645A (en) A circuit breaker closing and opening control mechanism.
FR1095247A (en) Device for automatic opening and closing of doors and similar applications
FR970328A (en) Closing and opening system for horizontal mixers
FR1061364A (en) Device for controlling the opening and closing of extraction skips or buckets
FR1135218A (en) Hydraulic device for opening and closing the extraction skip hatches
FR1237872A (en) Device for controlling the opening and closing of a container
FR994108A (en) Device for controlling the opening and closing of a case
FR1017535A (en) Spring device for closing and opening doors
FR910824A (en) Automatic control device for opening and closing the nozzle of injection molding machines
FR970162A (en) Method and device for closing and opening hatches of ships
FR1027217A (en) Bag closing or opening device
FR979714A (en) Advanced device for controlling the closing of car doors