GB1295343A - - Google Patents

Info

Publication number
GB1295343A
GB1295343A GB1295343DA GB1295343A GB 1295343 A GB1295343 A GB 1295343A GB 1295343D A GB1295343D A GB 1295343DA GB 1295343 A GB1295343 A GB 1295343A
Authority
GB
United Kingdom
Prior art keywords
boom
sections
feb
base section
bending moments
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
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 filed Critical
Publication of GB1295343A publication Critical patent/GB1295343A/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

Abstract

1295343 Measuring boom bending moments electrically WARNER & SWASEY CO 4 Feb 1970 [14 Feb 1969] 22367/72 Divided out of 1295341 Heading G1N A boom assembly as disclosed in Specification 1295341 (Division G1) is described but the claims are to a self-supporting boom having a base section 16, and a plurality of additional sections 17-20 in succession outwardly from the base section, those 17, 18 being extensible, and a strain transducer Tr for sensing the bending moment on the boom and circuits operable in accordance with the respective weights and extended lengths of the sections and with the output of the sensor means to yield a plurality of signals representative of the bending moments on respective sections of the boom.
GB1295343D 1969-02-14 1970-02-04 Expired GB1295343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79937969A 1969-02-14 1969-02-14

Publications (1)

Publication Number Publication Date
GB1295343A true GB1295343A (en) 1972-11-08

Family

ID=25175755

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1295343D Expired GB1295343A (en) 1969-02-14 1970-02-04
GB1295342D Expired GB1295342A (en) 1969-02-14 1970-02-04
GB1295341D Expired GB1295341A (en) 1969-02-14 1970-02-04

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB1295342D Expired GB1295342A (en) 1969-02-14 1970-02-04
GB1295341D Expired GB1295341A (en) 1969-02-14 1970-02-04

Country Status (5)

Country Link
US (1) US3586841A (en)
CA (1) CA939780A (en)
DE (1) DE2006722A1 (en)
FR (1) FR2033339B1 (en)
GB (3) GB1295343A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057792A (en) * 1970-01-21 1977-11-08 Ludwig Pietzsch Overload safety device for telescopic cranes
GB1462785A (en) * 1973-05-11 1977-01-26 Pye Ltd Crane load indicating arrangement
GB1500501A (en) * 1974-04-10 1978-02-08 Pye Ltd Crane load indicating arrangement
FR2342484A1 (en) * 1976-02-24 1977-09-23 Piassou Renee Electrical indication of length of crane span - uses interconnected electrical components on successive segments, whose total value indicates length
GB1523967A (en) * 1976-05-14 1978-09-06 Pye Electronic Prod Ltd Load indicating arrangement
US4084247A (en) * 1976-10-26 1978-04-11 Fmc Corporation Fluid loading arm alarm system
DE2659755B2 (en) * 1976-12-31 1978-10-12 Krueger & Co Kg, 4300 Essen Device for outputting a setpoint signal for a monitoring device of a jib crane or the like
US4276711A (en) * 1977-06-14 1981-07-07 Mathauser William R Fishing rod with strike signalling apparatus
US4219121A (en) * 1978-02-21 1980-08-26 Burro-Badger Corporation Safety system for use in association with material handling equipment
EP0029768B1 (en) * 1979-11-12 1986-04-23 FMC EUROPE S.A. Société anonyme dite: Process and apparatus for watching and controlling an articulated fluid-transfer arm for linking a ship to a platform in the sea
US4395706A (en) * 1980-06-30 1983-07-26 Jlg Industries, Inc. Boom limit safety control circuit
USRE32366E (en) * 1980-06-30 1987-03-03 Jlg Industries, Inc. Boom limit safety control circuit
US4736633A (en) * 1986-03-25 1988-04-12 Fmc Corporation Multipurpose lifting and pulling vehicle
US4833615A (en) * 1986-10-15 1989-05-23 A.G.A. Credit System for the protection of an aerial device having a pivotable boom
DE10349234A1 (en) * 2003-10-20 2005-05-19 Putzmeister Ag Mobile implement with support arms
US20130079974A1 (en) * 2011-09-23 2013-03-28 Manitowoc Crane Companies, Llc Outrigger monitoring system and methods
JP5889688B2 (en) * 2012-03-26 2016-03-22 株式会社タダノ Work machine
US9327946B2 (en) * 2012-07-16 2016-05-03 Altec Industries, Inc. Hydraulic side load braking system
CN104692250B (en) * 2015-02-05 2016-11-02 三一汽车起重机械有限公司 Crane and torgue measurement System and method for thereof
CN113184703A (en) * 2021-04-27 2021-07-30 中国特种设备检测研究院 Crane metal structure state monitoring system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858070A (en) * 1955-11-17 1958-10-28 Scharff Leon Moment computing and indicating systems
FR1357347A (en) * 1963-05-17 1964-04-03 Cole E K Ltd Safety device, for example, for a crane comprising a member having to tilt in a vertical plane
US3199685A (en) * 1964-03-02 1965-08-10 Greater Iowa Corp Overload safety device for material handling mechanism

Also Published As

Publication number Publication date
DE2006722A1 (en) 1970-09-03
CA939780A (en) 1974-01-08
FR2033339B1 (en) 1973-10-19
FR2033339A1 (en) 1970-12-04
GB1295342A (en) 1972-11-08
US3586841A (en) 1971-06-22
GB1295341A (en) 1972-11-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee