IT995774B - Sistema indicatore e di avverti mento per l indicazione continua del raggio operativo e della lun ghezza del braccio di una gru - Google Patents

Sistema indicatore e di avverti mento per l indicazione continua del raggio operativo e della lun ghezza del braccio di una gru

Info

Publication number
IT995774B
IT995774B IT29986/73A IT2998673A IT995774B IT 995774 B IT995774 B IT 995774B IT 29986/73 A IT29986/73 A IT 29986/73A IT 2998673 A IT2998673 A IT 2998673A IT 995774 B IT995774 B IT 995774B
Authority
IT
Italy
Prior art keywords
crane
indicator
arm
length
warning system
Prior art date
Application number
IT29986/73A
Other languages
English (en)
Italian (it)
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Application granted granted Critical
Publication of IT995774B publication Critical patent/IT995774B/it

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
    • B66C23/905—Devices for indicating or limiting lifting moment electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/084—Protection measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
IT29986/73A 1972-10-12 1973-10-10 Sistema indicatore e di avverti mento per l indicazione continua del raggio operativo e della lun ghezza del braccio di una gru IT995774B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00297062A US3833932A (en) 1972-10-12 1972-10-12 Boom length operating radius indicator and warning device

Publications (1)

Publication Number Publication Date
IT995774B true IT995774B (it) 1975-11-20

Family

ID=23144698

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29986/73A IT995774B (it) 1972-10-12 1973-10-10 Sistema indicatore e di avverti mento per l indicazione continua del raggio operativo e della lun ghezza del braccio di una gru

Country Status (5)

Country Link
US (1) US3833932A (enrdf_load_stackoverflow)
CA (1) CA1000856A (enrdf_load_stackoverflow)
DE (1) DE2350904A1 (enrdf_load_stackoverflow)
FR (1) FR2202842B1 (enrdf_load_stackoverflow)
IT (1) IT995774B (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400310C3 (de) * 1974-01-04 1981-02-26 Erhard 5509 Kell Kirsten Kippmomentsicherung für einen Teleskop-Auslegerkran
US3922789A (en) * 1974-12-11 1975-12-02 Koehring Co Boom length sensing system with two-block condition sensing
US3993166A (en) * 1975-04-29 1976-11-23 Bofors America, Inc. Overload signalling system for fork lift trucks and the like
US3997071A (en) * 1975-08-14 1976-12-14 Laserplane Corporation Method and apparatus for indicating effective digging depth of a backhoe
US4054055A (en) * 1976-08-06 1977-10-18 Precilec Device for controlling the load of a lifting appliance
US4205308A (en) * 1977-11-21 1980-05-27 Fmc Corporation Programmable alarm system for marine loading arms
DE3071572D1 (en) * 1979-11-12 1986-05-28 Fmc Europe Process and apparatus for watching and controlling an articulated fluid-transfer arm for linking a ship to a platform in the sea
USRE32366E (en) * 1980-06-30 1987-03-03 Jlg Industries, Inc. Boom limit safety control circuit
US4395706A (en) * 1980-06-30 1983-07-26 Jlg Industries, Inc. Boom limit safety control circuit
CN104843616A (zh) * 2015-04-17 2015-08-19 徐州徐工随车起重机有限公司 一种高空作业车臂架及其工作半径的控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079080A (en) * 1960-02-12 1963-02-26 Henry L Mason Crane warning system
US3269560A (en) * 1964-12-28 1966-08-30 Drott Mfg Corp Safety control for cranes
US3505514A (en) * 1967-11-13 1970-04-07 Eaton Yale & Towne Load warning device
US3549876A (en) * 1968-03-07 1970-12-22 Eaton Yale & Towne Crane operating radius indicator
US3489294A (en) * 1968-04-25 1970-01-13 Bucyrus Erie Co Load limit control for hoisting equipment

Also Published As

Publication number Publication date
FR2202842A1 (enrdf_load_stackoverflow) 1974-05-10
US3833932A (en) 1974-09-03
DE2350904A1 (de) 1974-04-18
FR2202842B1 (enrdf_load_stackoverflow) 1977-05-27
CA1000856A (en) 1976-11-30

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