GB1200575A - Improvements relating to grabs - Google Patents

Improvements relating to grabs

Info

Publication number
GB1200575A
GB1200575A GB19739/69A GB1973969A GB1200575A GB 1200575 A GB1200575 A GB 1200575A GB 19739/69 A GB19739/69 A GB 19739/69A GB 1973969 A GB1973969 A GB 1973969A GB 1200575 A GB1200575 A GB 1200575A
Authority
GB
United Kingdom
Prior art keywords
bar
grab
jaws
plan
rotated
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
GB19739/69A
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.)
COSTUZIONI CEMENTO COMPRESSO F
Original Assignee
COSTUZIONI CEMENTO COMPRESSO F
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 COSTUZIONI CEMENTO COMPRESSO F filed Critical COSTUZIONI CEMENTO COMPRESSO F
Publication of GB1200575A publication Critical patent/GB1200575A/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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
GB19739/69A 1968-10-23 1969-04-17 Improvements relating to grabs Expired GB1200575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2288068 1968-10-23

Publications (1)

Publication Number Publication Date
GB1200575A true GB1200575A (en) 1970-07-29

Family

ID=11201480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19739/69A Expired GB1200575A (en) 1968-10-23 1969-04-17 Improvements relating to grabs

Country Status (10)

Country Link
US (1) US3640353A (de)
AT (1) AT303635B (de)
BE (1) BE736488A (de)
CH (1) CH514039A (de)
DE (1) DE1952116A1 (de)
ES (1) ES370671A1 (de)
FR (1) FR2021338A1 (de)
GB (1) GB1200575A (de)
LU (1) LU59179A1 (de)
NL (1) NL6915710A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106225A (en) * 1977-03-07 1978-08-15 Schnabel Foundation Company Method and apparatus for excavating underpinning holes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1216936A (en) * 1967-12-23 1970-12-23 Orenstein & Koppel Ag Machines for digging deep narrow trenches
DE3805868A1 (de) * 1988-02-25 1989-09-07 Hochtief Ag Hoch Tiefbauten Seilgefuehrter schlitzwandgreifer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618294A (en) * 1926-03-30 1927-02-22 Olson Joseph Underreamer
US2203246A (en) * 1938-11-01 1940-06-04 Estate Of Emil H Zum Berge Underreamer
US2499508A (en) * 1948-10-15 1950-03-07 Ilmar J Karhu Well digger
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3194329A (en) * 1964-06-11 1965-07-13 Calweld Inc Hydraulic grab bucket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106225A (en) * 1977-03-07 1978-08-15 Schnabel Foundation Company Method and apparatus for excavating underpinning holes

Also Published As

Publication number Publication date
FR2021338A1 (de) 1970-07-24
BE736488A (de) 1969-12-31
DE1952116A1 (de) 1970-05-21
CH514039A (de) 1971-10-15
NL6915710A (de) 1970-04-27
US3640353A (en) 1972-02-08
LU59179A1 (de) 1969-12-05
AT303635B (de) 1972-12-11
ES370671A1 (es) 1971-11-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees