GB743860A - Improvements in or relating to jack cranes - Google Patents

Improvements in or relating to jack cranes

Info

Publication number
GB743860A
GB743860A GB689853A GB689853A GB743860A GB 743860 A GB743860 A GB 743860A GB 689853 A GB689853 A GB 689853A GB 689853 A GB689853 A GB 689853A GB 743860 A GB743860 A GB 743860A
Authority
GB
United Kingdom
Prior art keywords
cranes
jack
relating
group xxx
hook
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
GB689853A
Inventor
Eric Stanley Page
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.)
Mann Egerton and Co Ltd
Original Assignee
Mann Egerton and Co Ltd
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 Mann Egerton and Co Ltd filed Critical Mann Egerton and Co Ltd
Priority to GB689853A priority Critical patent/GB743860A/en
Publication of GB743860A publication Critical patent/GB743860A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/48—Manually-movable jib cranes for use in workshops

Abstract

743,860. Hooks. MANN, EGERTON & CO., Ltd. Jan. 14, 1954 [March 12, 1953], No. 6898/53. Class 89 (2). [Also in Group XXX] A hook 7 is supported at the end of a load-handling jib 1 (see Group XXX) on a spherical seating 8, 9 which enables the hook to hang vertically in all positions of the beam. Specification 679,666, [Group XXX], is referred to.
GB689853A 1953-03-12 1953-03-12 Improvements in or relating to jack cranes Expired GB743860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB689853A GB743860A (en) 1953-03-12 1953-03-12 Improvements in or relating to jack cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB689853A GB743860A (en) 1953-03-12 1953-03-12 Improvements in or relating to jack cranes

Publications (1)

Publication Number Publication Date
GB743860A true GB743860A (en) 1956-01-25

Family

ID=9822830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB689853A Expired GB743860A (en) 1953-03-12 1953-03-12 Improvements in or relating to jack cranes

Country Status (1)

Country Link
GB (1) GB743860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235545B (en) * 1964-03-28 1967-03-02 Josef Schwahlen Praez S Werkze Mobile workshop crane equipped with a hydraulically swiveling boom in a vertical plane
DE2522390A1 (en) * 1975-05-21 1976-11-25 Hiab Foco Ab Lorry mounted crane articulated jib - has derricking extensible fly jib on extension of main jib top section

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235545B (en) * 1964-03-28 1967-03-02 Josef Schwahlen Praez S Werkze Mobile workshop crane equipped with a hydraulically swiveling boom in a vertical plane
DE2522390A1 (en) * 1975-05-21 1976-11-25 Hiab Foco Ab Lorry mounted crane articulated jib - has derricking extensible fly jib on extension of main jib top section

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