GB451808A - Improvements in excavators - Google Patents

Improvements in excavators

Info

Publication number
GB451808A
GB451808A GB21141/35A GB2114135A GB451808A GB 451808 A GB451808 A GB 451808A GB 21141/35 A GB21141/35 A GB 21141/35A GB 2114135 A GB2114135 A GB 2114135A GB 451808 A GB451808 A GB 451808A
Authority
GB
United Kingdom
Prior art keywords
scoop
cable
winch
pivoted
driven
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
GB21141/35A
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.)
Mannesmann Demag AG
Original Assignee
Demag 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 Demag AG filed Critical Demag AG
Publication of GB451808A publication Critical patent/GB451808A/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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. 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
    • E02F3/28—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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/427—Drives for dippers, buckets, dipper-arms or bucket-arms with mechanical drives

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)
  • Earth Drilling (AREA)

Abstract

451,808. Excavators. DEMAG AKT.- GES., 64, Werthauserstrasse, Duisburg, Germany. July 25, 1935, No. 21141. Convention date, Aug. 2, 1934. [Class 68 (i)] A scoop arm excavator comprises a pivoted jib 2 on which swings an arm 3 to which the scoop 4 is pivoted, the latter being locked against backward movement during excavating by a spring bolt 17 which is controlled as through levers by the tipping rope 7 which passes by pulleys 16, 15, 14 to means for taking up slack such as a spring or weight loaded pulley block system 11, 13. The rope 7 is finally secured to the larger diameter of a differential drum 9 which may be driven in winding direction by a winch 8 and cable 7a; upward movement of the lower pulleys 11 is limited by a resilient stop 13<a>. After digging, the drum 8 is braked and the jib raised by cable 5, the scoop then swinging freely and the weight of the load drawing off cable from the pulley block system 11, 13. After hoisting, the winch 8 is driven to tip the scoop.
GB21141/35A 1934-08-02 1935-07-25 Improvements in excavators Expired GB451808A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE792711X 1934-08-02
DE451808X 1934-08-02
DED68530D DE660127C (en) 1934-08-02 1934-08-03 Deep digger

Publications (1)

Publication Number Publication Date
GB451808A true GB451808A (en) 1936-08-12

Family

ID=27207149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21141/35A Expired GB451808A (en) 1934-08-02 1935-07-25 Improvements in excavators

Country Status (2)

Country Link
DE (1) DE660127C (en)
GB (1) GB451808A (en)

Also Published As

Publication number Publication date
DE660127C (en) 1938-05-17

Similar Documents

Publication Publication Date Title
GB451808A (en) Improvements in excavators
US2267614A (en) Dragline excavator
GB602845A (en) Improvements in cranes or derricks
GB403825A (en) Improvements in excavators
US1829987A (en) Back digging shovel
GB267825A (en) Improvements in luffing cranes
GB440667A (en) Improvements in excavators
GB520182A (en) Hoisting cranes
GB694502A (en) Improvements in or relating to heavy hoisting blocks and tackle
GB135880A (en) Improvements in Devices of Power Friction Hoists, Attached to Portable or Stationary Lifting Swinging Cranes.
GB387888A (en) An improved jib-crane with adjustable counterweight
GB612781A (en) Improvements in drag-line excavators
GB407954A (en) Improvements in or relating to devices for excavating, hauling, loading and like purposes
GB466993A (en) Improvements in or relating to excavators
GB324055A (en) Improvements in and connected with electric level luffing grab cranes
GB158338A (en) Improved means associated with cranes for the operation of tip-buckets
GB191325561A (en) Improvements in Excavating Apparatus.
SU86653A1 (en) The method of hauling wood on an inclined steel rope
GB312425A (en) Improvements in luffing cranes
GB708042A (en) Improvements in or relating to dragline excavators
GB191111622A (en) An Improved Excavating Machine.
GB690511A (en) Improvements relating to excavators
GB550498A (en) Improvements in or relating to cranes or the like
GB306223A (en) Improvements in luffing jib cranes
GB627663A (en) Improvements in or relating to cable operating means for power shovels