FR851331A - Electric control for dredgers with two motors - Google Patents

Electric control for dredgers with two motors

Info

Publication number
FR851331A
FR851331A FR851331DA FR851331A FR 851331 A FR851331 A FR 851331A FR 851331D A FR851331D A FR 851331DA FR 851331 A FR851331 A FR 851331A
Authority
FR
France
Prior art keywords
dredgers
motors
electric control
electric
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.)
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.)
Mohr und Federhaff AG
Original Assignee
Mohr und Federhaff 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 Mohr und Federhaff AG filed Critical Mohr und Federhaff AG
Application granted granted Critical
Publication of FR851331A publication Critical patent/FR851331A/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
    • B66C3/125—Devices for control
FR851331D 1938-04-24 1939-03-08 Electric control for dredgers with two motors Expired FR851331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM141445D DE710392C (en) 1938-04-24 1938-04-24 Control and protection device for gripper winches

Publications (1)

Publication Number Publication Date
FR851331A true FR851331A (en) 1940-01-06

Family

ID=7334825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR851331D Expired FR851331A (en) 1938-04-24 1939-03-08 Electric control for dredgers with two motors

Country Status (2)

Country Link
DE (1) DE710392C (en)
FR (1) FR851331A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE569332A (en) * 1957-07-12
DE1187776B (en) * 1961-09-16 1965-02-25 Licentia Gmbh Device for determining the opening state of a gripper
US3273860A (en) * 1965-03-04 1966-09-20 New York Air Brake Co Hydraulic system

Also Published As

Publication number Publication date
DE710392C (en) 1941-09-12

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