GB1030103A - Improvements in or relating to maximum safe load indicators for cranes - Google Patents

Improvements in or relating to maximum safe load indicators for cranes

Info

Publication number
GB1030103A
GB1030103A GB886664A GB886664A GB1030103A GB 1030103 A GB1030103 A GB 1030103A GB 886664 A GB886664 A GB 886664A GB 886664 A GB886664 A GB 886664A GB 1030103 A GB1030103 A GB 1030103A
Authority
GB
United Kingdom
Prior art keywords
cranes
discs
jib
safe load
load indicators
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
GB886664A
Inventor
John Henry Boughton
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.)
TT Boughton and Sons Ltd
Original Assignee
TT Boughton and Sons 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 TT Boughton and Sons Ltd filed Critical TT Boughton and Sons Ltd
Priority to GB886664A priority Critical patent/GB1030103A/en
Publication of GB1030103A publication Critical patent/GB1030103A/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
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

1,030,103. Safe load indicators for jib-cranes. T. T. BOUGHTON & SONS Ltd. Feb. 25, 1965 [March 3, 1964], No. 8866/64. Heading B8B. When the overturning moment in a mobile jib-crane reaches a predetermined figure, a pedestal 3, to which the jib 7 is pivoted at 8, tends to pivot about an axis 6. This pivotal movement is opposed by resilient discs 17, 18, Fig. 3 (not shown), interposed between the pedestal and a plate 10 mounted on a base 2. When the discs are compressed a micro-switch 19 is operated to give a warning signal and/or to stop the hoist mechanism. A plurality of micro-switches may provide a series of signals. The invention may be applied to tower-cranes. Tensionally stressed elements may replace discs 17, 18. Pneumatic or hydraulic signalling means may be employed.
GB886664A 1964-03-03 1964-03-03 Improvements in or relating to maximum safe load indicators for cranes Expired GB1030103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB886664A GB1030103A (en) 1964-03-03 1964-03-03 Improvements in or relating to maximum safe load indicators for cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB886664A GB1030103A (en) 1964-03-03 1964-03-03 Improvements in or relating to maximum safe load indicators for cranes

Publications (1)

Publication Number Publication Date
GB1030103A true GB1030103A (en) 1966-05-18

Family

ID=9860773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB886664A Expired GB1030103A (en) 1964-03-03 1964-03-03 Improvements in or relating to maximum safe load indicators for cranes

Country Status (1)

Country Link
GB (1) GB1030103A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189456A (en) * 1986-04-24 1987-10-28 Mo N Proizv Ob Str Dorozh Mash Device for protecting hoisting mechanisms against overloads and tipping
FR2678256A1 (en) * 1991-06-27 1992-12-31 Neotec Dev Device for controlling and limiting the tilting torque of a bracket, particularly for supporting a handling arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189456A (en) * 1986-04-24 1987-10-28 Mo N Proizv Ob Str Dorozh Mash Device for protecting hoisting mechanisms against overloads and tipping
FR2678256A1 (en) * 1991-06-27 1992-12-31 Neotec Dev Device for controlling and limiting the tilting torque of a bracket, particularly for supporting a handling arm

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