GB1252652A - - Google Patents

Info

Publication number
GB1252652A
GB1252652A GB1252652DA GB1252652A GB 1252652 A GB1252652 A GB 1252652A GB 1252652D A GB1252652D A GB 1252652DA GB 1252652 A GB1252652 A GB 1252652A
Authority
GB
United Kingdom
Prior art keywords
openings
lugs
bosses
rock
engage
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
English (en)
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 filed Critical
Publication of GB1252652A publication Critical patent/GB1252652A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
GB1252652D 1968-02-02 1969-01-23 Expired GB1252652A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70270868A 1968-02-02 1968-02-02

Publications (1)

Publication Number Publication Date
GB1252652A true GB1252652A (enrdf_load_stackoverflow) 1971-11-10

Family

ID=24822285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252652D Expired GB1252652A (enrdf_load_stackoverflow) 1968-02-02 1969-01-23

Country Status (4)

Country Link
US (1) US3462029A (enrdf_load_stackoverflow)
JP (1) JPS4811123B1 (enrdf_load_stackoverflow)
DE (1) DE1905471C3 (enrdf_load_stackoverflow)
GB (1) GB1252652A (enrdf_load_stackoverflow)

Families Citing this family (8)

* 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
FR2122294B1 (enrdf_load_stackoverflow) * 1971-01-18 1975-06-06 Poclain Sa
US3873133A (en) * 1972-08-25 1975-03-25 Caterpillar Tractor Co Clamshell bucket assembly for hydraulic excavator
US3896950A (en) * 1974-01-02 1975-07-29 Willard E Mccain Excavating machine
US4032025A (en) * 1975-06-20 1977-06-28 Audie B. Tomlinson Backhoe bucket tilt
US4497608A (en) * 1983-06-13 1985-02-05 The Trustees Of The Toronto General Burying Grounds Monument foundation digger
SE534162C2 (sv) * 2008-06-08 2011-05-17 Vimek I Vindeln Ab Förfarande och anordning vid en svängdämpare
US11613868B2 (en) * 2019-08-28 2023-03-28 Raymond E. Bergeron Excavator mounted head and assembly for supporting and angularly adjusting a clamshell style bucket assembly during such as a dredging operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755946A (en) * 1952-01-02 1956-07-24 James I Bevan Clamshell earth-moving machine
US2725996A (en) * 1953-04-22 1955-12-06 Paul F Britton Universal head for controlling clamshell bucket and similar material handling devices

Also Published As

Publication number Publication date
US3462029A (en) 1969-08-19
DE1905471C3 (de) 1974-10-17
DE1905471B2 (de) 1974-03-14
JPS4811123B1 (enrdf_load_stackoverflow) 1973-04-11
DE1905471A1 (de) 1969-08-28

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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