GB812650A - Improvements relating to excavators - Google Patents

Improvements relating to excavators

Info

Publication number
GB812650A
GB812650A GB75857A GB75857A GB812650A GB 812650 A GB812650 A GB 812650A GB 75857 A GB75857 A GB 75857A GB 75857 A GB75857 A GB 75857A GB 812650 A GB812650 A GB 812650A
Authority
GB
United Kingdom
Prior art keywords
bucket
link
links
digging
jib
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
GB75857A
Inventor
Norman Brocklebank
William Alan Steeksma
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.)
Priestman Brothers Ltd
Original Assignee
Priestman Brothers Ltd
Filing date
Publication date
Application filed by Priestman Brothers Ltd filed Critical Priestman Brothers Ltd
Publication of GB812650A publication Critical patent/GB812650A/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
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E02F3/4075—Dump doors; Control thereof
    • 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

812,650. Shove excavators. PRIESTMAN BROS. Ltd. Jan. 3, 1958 [Jan. 8, 1957], No. 758/57. Class 68(1) The bucket 6 of a shovel excavator is pivotally supported from the mid point of a jib by a pair of parallel links 7, 8. The links when the bucket is drawn forward by a cable 5 to make a skimming cut are of equal length so that the bucket moves in substantially a straight line. At the end of the digging stroke a stop 32 on the bucket engages the lower end of the link 7 and the telescopic link 8 allowed to lengthen as the bucket is swung upwards in an arc on further hauling in of the rope 5. When the bucket is returned to a digging position the link 8 is shortened by hauling in a rope 17 connected to a link 16 pivotally secured to the arm 7 and having pins 14 moving in slots 15 in the portions of the link 8. During the digging operation the jib 1 floats on the links 7, 8. To convert the excavator to a face shovel the links 8 and 16 are removed and the bucket 6 secured rigidly to the link 7.
GB75857A 1957-01-08 Improvements relating to excavators Expired GB812650A (en)

Publications (1)

Publication Number Publication Date
GB812650A true GB812650A (en) 1959-04-29

Family

ID=1593445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB75857A Expired GB812650A (en) 1957-01-08 Improvements relating to excavators

Country Status (1)

Country Link
GB (1) GB812650A (en)

Similar Documents

Publication Publication Date Title
GB989580A (en) Improvements in or relating to hydraulically actuated shovel excavators
SE7901783L (en) LINKING MECHANISM FOR EXCAVATORS
GB1222702A (en) Improvements in or relating to excavators
GB1025305A (en) Improvements in mechanical excavators
GB1039703A (en) Improvements in or relating to shovel loaders
GB812650A (en) Improvements relating to excavators
GB866759A (en) Improvements relating to scoop loaders and to attachments therefor
GB910576A (en) Improvements in or relating to multiple-purpose power shovels
GB1232696A (en)
GB1218818A (en) Loader apparatus
GB964850A (en) Improvements relating to shovel excavator assemblies
GB1494421A (en) Excavator
GB1046712A (en) Shovel excavator dipper stick structure and an extension therefor
GB1135292A (en) Load handling vehicle
GB980137A (en) Improvements relating to mechanical excavators
ES317736A1 (en) Mechanical ground levelling machine
GB877043A (en) Mechanical shovel with jack-controlled bucket inclination
GB980138A (en) Improvements relating to mechanical excavators
GB734592A (en) Loaders
GB758490A (en) Improvements in or relating to loading shovels
GB817647A (en) Improved tool-carrying tractor boom apparatus
GB648399A (en) Improvements relating to dragline buckets
GB482341A (en) Improvements in or relating to excavating machines
SU139993A1 (en) Working equipment for excavators with a straight shovel and hydraulic drive
GB1001528A (en) Lowerable frames for excavating or other machines equipped with booms