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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
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.
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 |
---|---|---|---|
GB1295342D Expired GB1295342A (en) | 1969-02-14 | 1970-02-04 | |
GB1295343D Expired GB1295343A (en) | 1969-02-14 | 1970-02-04 | |
GB1295341D Expired GB1295341A (en) | 1969-02-14 | 1970-02-04 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1295342D Expired GB1295342A (en) | 1969-02-14 | 1970-02-04 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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) | GB1295342A (en) |
Families Citing this family (20)
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 |
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 |
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)
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 |
-
1969
- 1969-02-14 US US799379A patent/US3586841A/en not_active Expired - Lifetime
-
1970
- 1970-02-03 CA CA073,786A patent/CA939780A/en not_active Expired
- 1970-02-04 GB GB1295342D patent/GB1295342A/en not_active Expired
- 1970-02-04 GB GB1295343D patent/GB1295343A/en not_active Expired
- 1970-02-04 GB GB1295341D patent/GB1295341A/en not_active Expired
- 1970-02-13 FR FR7005301A patent/FR2033339B1/fr not_active Expired
- 1970-02-13 DE DE19702006722 patent/DE2006722A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3586841A (en) | 1971-06-22 |
CA939780A (en) | 1974-01-08 |
DE2006722A1 (en) | 1970-09-03 |
FR2033339B1 (en) | 1973-10-19 |
GB1295342A (en) | 1972-11-08 |
GB1295341A (en) | 1972-11-08 |
FR2033339A1 (en) | 1970-12-04 |
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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 |