GB913500A - Telescopically extensible and retractable boom for excavators, cranes and similar equipment - Google Patents

Telescopically extensible and retractable boom for excavators, cranes and similar equipment

Info

Publication number
GB913500A
GB913500A GB2936160A GB2936160A GB913500A GB 913500 A GB913500 A GB 913500A GB 2936160 A GB2936160 A GB 2936160A GB 2936160 A GB2936160 A GB 2936160A GB 913500 A GB913500 A GB 913500A
Authority
GB
United Kingdom
Prior art keywords
tubes
transverse members
excavators
rollers
attached
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
GB2936160A
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.)
ERNEST WIEGER
Original Assignee
ERNEST WIEGER
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 ERNEST WIEGER filed Critical ERNEST WIEGER
Publication of GB913500A publication Critical patent/GB913500A/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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
    • 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
    • E02F3/306—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 with telescopic dipper-arm or boom

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

913,500. Shovel-excavators. WIEGER, E. Aug. 25, 1960 [April 20, 1960], No. 29361/60. Class 68 (1). [Also in Group XXX] In an earth-moving machine the longitudinal tubes 13, 15, Fig. 2, of the two sections 10, 11, of a telescopic jib which are guided by rollers 18 are attached to transverse members 12, 14 in such a way that the tubes may be rotated about their longitudinal axes after being detached from the transverse members in order to bring unworn portions of the tubes into contact with the rollers 18. As described, the jib is triangular in cross-section and the tubes 13, 14, Fig. 4, are attached by bolts 17 to arc-shaped portions 12a, 14a of the transverse members 12, 14. Four tapped holes are provided in the tubes at each attachment point so that four different portions of each tube may successively bear against the rollers 18. The transverse members 23, 24 may alternatively be attached to the tubes as shown in Fig. 6. In a further embodiment, the jib is square in cross-section, a tube being provided at each corner.
GB2936160A 1960-04-20 1960-08-25 Telescopically extensible and retractable boom for excavators, cranes and similar equipment Expired GB913500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW27684A DE1112269B (en) 1960-04-20 1960-04-20 Length-adjustable boom for cranes and rope pulling machines

Publications (1)

Publication Number Publication Date
GB913500A true GB913500A (en) 1962-12-19

Family

ID=7598714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2936160A Expired GB913500A (en) 1960-04-20 1960-08-25 Telescopically extensible and retractable boom for excavators, cranes and similar equipment

Country Status (5)

Country Link
BE (1) BE593741A (en)
CH (1) CH376625A (en)
DE (1) DE1112269B (en)
GB (1) GB913500A (en)
NL (2) NL255595A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112792845A (en) * 2021-02-04 2021-05-14 湖北三江航天涂装设备工程有限公司 Chain drive telescopic boom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189692B (en) * 1962-07-20 1965-03-25 Josef Peitl Length-adjustable boom for jib cranes
US5555958A (en) * 1995-03-06 1996-09-17 Mannesmann Aktiengesellschaft Supporting and guiding arrangement, in particular a post for shelf storage and retrieval devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009373B (en) * 1953-05-11 1957-05-29 Walter Alfred Golka Telescopic boom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112792845A (en) * 2021-02-04 2021-05-14 湖北三江航天涂装设备工程有限公司 Chain drive telescopic boom

Also Published As

Publication number Publication date
CH376625A (en) 1964-04-15
BE593741A (en) 1960-12-01
DE1112269B (en) 1961-08-03
NL255595A (en)
NL109208C (en)

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