CA1000856A - Boom length operating radius indicator and warning device - Google Patents

Boom length operating radius indicator and warning device

Info

Publication number
CA1000856A
CA1000856A CA182,506A CA182506A CA1000856A CA 1000856 A CA1000856 A CA 1000856A CA 182506 A CA182506 A CA 182506A CA 1000856 A CA1000856 A CA 1000856A
Authority
CA
Canada
Prior art keywords
warning device
boom length
operating radius
length operating
radius indicator
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
CA182,506A
Other versions
CA182506S (en
Inventor
Martin W. Hamilton
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.)
Eaton Corp
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 CA1000856A publication Critical patent/CA1000856A/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
    • 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)
CA182,506A 1972-10-12 1973-10-02 Boom length operating radius indicator and warning device Expired CA1000856A (en)

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
CA1000856A true CA1000856A (en) 1976-11-30

Family

ID=23144698

Family Applications (1)

Application Number Title Priority Date Filing Date
CA182,506A Expired CA1000856A (en) 1972-10-12 1973-10-02 Boom length operating radius indicator and warning device

Country Status (5)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400310C3 (en) * 1974-01-04 1981-02-26 Erhard 5509 Kell Kirsten Tilting moment protection for a telescopic jib crane
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 (en) * 2015-04-17 2015-08-19 徐州徐工随车起重机有限公司 Overhead working truck boom and control method for working radius of overhead working truck boom

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
US3833932A (en) 1974-09-03
FR2202842B1 (en) 1977-05-27
FR2202842A1 (en) 1974-05-10
IT995774B (en) 1975-11-20
DE2350904A1 (en) 1974-04-18

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