GB440667A - Improvements in excavators - Google Patents

Improvements in excavators

Info

Publication number
GB440667A
GB440667A GB23275/34A GB2327534A GB440667A GB 440667 A GB440667 A GB 440667A GB 23275/34 A GB23275/34 A GB 23275/34A GB 2327534 A GB2327534 A GB 2327534A GB 440667 A GB440667 A GB 440667A
Authority
GB
United Kingdom
Prior art keywords
pulley
arm
stops
shovel
scoop
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
GB23275/34A
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 GB440667A publication Critical patent/GB440667A/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
    • E02F3/30—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
    • E02F3/30—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
    • E02F3/36—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

Abstract

440,667. Excavators. DEMAG AKT.- GES., 64, Werthauserstrasse, Duisburg, Germany. Aug. 11, 1934, No. 23275. Convention date, Aug. 12, 1933. [Class 68 (i)] In an excavator in which the position of the shovel relatively to its handle is determined, during the digging movement, by retaining members provided on the handle, the shoveltipping means effects withdrawal of the retaining members from their operative position when tipping the shovel. The shovel 5 is pivoted at 6 on the arm 3 pivoted to the jib 1 and during digging, movable stops 8 engage segmental members 7, guide slots or the like on the shovel to hold the latter against yielding ; a brake, clamp or the like may replace the stops. The stops are connected through levers 22, Fig. 4, and a spring-pressnd rod 21, to a pulley 11 guided in a slot in the arm 3. A tipping rope 10 passes from the scoop over pulleys 11, 12, 13 to pulley 14, carried by a piston rod operated by means of a pump 16 driven by chain &c. 15 and supplying fluid to a cylinder 17 under control of means 19 adapted to short-circuit the cylinder ends or to close both such ends. After digging, the scoop moves by gravity to carrying position and at any position of the arm 3, on moving the pulley 14 by the fluid pressure gear 17, the rope 10 first depresses the pulley 11 to move stops 8 free of the members 7 or the like, and then tips the scoop. A winch &c. may replace the fluid-pressure gear 17, and the stops 8 may be arranged to move parallel to the arm 3, while the pulley 11 may be secured to a link pivoted to the arm 3.
GB23275/34A 1933-08-12 1934-08-11 Improvements in excavators Expired GB440667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE440667X 1933-08-12

Publications (1)

Publication Number Publication Date
GB440667A true GB440667A (en) 1936-01-03

Family

ID=6511522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23275/34A Expired GB440667A (en) 1933-08-12 1934-08-11 Improvements in excavators

Country Status (2)

Country Link
US (1) US2055111A (en)
GB (1) GB440667A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229205A1 (en) * 1986-01-11 1987-07-22 Friedrich Wilh. Schwing GmbH Bucket excavator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2489898A (en) * 1944-10-07 1949-11-29 Edward H Kluckhohn Excavating apparatus
US10240318B2 (en) 2016-12-09 2019-03-26 Caterpillar Inc. Boom assembly of machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229205A1 (en) * 1986-01-11 1987-07-22 Friedrich Wilh. Schwing GmbH Bucket excavator

Also Published As

Publication number Publication date
US2055111A (en) 1936-09-22

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