GB172927A - Improvements in ditch digging machines - Google Patents

Improvements in ditch digging machines

Info

Publication number
GB172927A
GB172927A GB19672/21A GB1967221A GB172927A GB 172927 A GB172927 A GB 172927A GB 19672/21 A GB19672/21 A GB 19672/21A GB 1967221 A GB1967221 A GB 1967221A GB 172927 A GB172927 A GB 172927A
Authority
GB
United Kingdom
Prior art keywords
shaft
frame
cutters
crank
slot
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
GB19672/21A
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.)
LARS ALF OEDEGAARD
Original Assignee
LARS ALF OEDEGAARD
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 LARS ALF OEDEGAARD filed Critical LARS ALF OEDEGAARD
Publication of GB172927A publication Critical patent/GB172927A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/102—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters
    • E02F5/103—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters with oscillating or vibrating digging tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

172,927. Odegaard, L. A. Dec. 16, 1920. Trench excavators.-A trench excavator comprises a wheeled frame 1 carrying a motor 4 which, through a shaft 5, drives a crank-shaft 6 carried by a frame 12 pivoted on the shaft 5; the frame 12 is adjustably supported by a screw 15 which is yieldable upwardly against a spring 22. Links 9, 10, pivoted together and guided by a slot 11, are respectively connected to the shaft 6 and to the cutter member 7, the latter being also connected to the crank 8. When the cutters in operation strike rock &c., the frame 12 moves upwardly and the slot 11 causes a rearward movement of the cutters. The machine preferably carries three cutter members operated by cranks 180‹ apart.
GB19672/21A 1920-12-16 1921-07-21 Improvements in ditch digging machines Expired GB172927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO172927X 1920-12-16

Publications (1)

Publication Number Publication Date
GB172927A true GB172927A (en) 1922-10-19

Family

ID=19904623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19672/21A Expired GB172927A (en) 1920-12-16 1921-07-21 Improvements in ditch digging machines

Country Status (1)

Country Link
GB (1) GB172927A (en)

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