GB1174698A - Boom Retracting Machinery - Google Patents
Boom Retracting MachineryInfo
- Publication number
- GB1174698A GB1174698A GB24554/68A GB2455468A GB1174698A GB 1174698 A GB1174698 A GB 1174698A GB 24554/68 A GB24554/68 A GB 24554/68A GB 2455468 A GB2455468 A GB 2455468A GB 1174698 A GB1174698 A GB 1174698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boom
- arm
- arms
- machinery
- pivoted
- 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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
1,174,698. Mobile jib-cranes. RUSTON-BUCYRUS Ltd. 23 May, 1968 [29 June, 1967], No. 24554/68. Heading B8B. So that a crane boom 2, Fig. 1, may be retracted for travelling, the boom foot is pivoted at 4 to a pair of arms 5 which are rotated through 180 degrees by a ram 12 and a pivoted actuating arm 9. Only one arm 9 is provided and the two arms 5 are connected by a torque tube 7. The arm 9 is connected to the arm 5 by a pin 10 and slot 11. A wheel 15, Fig. 1, supports the outer end of the boom during retraction and in the later stages the boom rides up on to the vehicle on rollers 16. Pivots 7, 8, Fig. 2, are off-set to avoid a dead-shot when the arms 5 go over-centre. Specification 1,173,987 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65003267A | 1967-06-29 | 1967-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1174698A true GB1174698A (en) | 1969-12-17 |
Family
ID=24607186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24554/68A Expired GB1174698A (en) | 1967-06-29 | 1968-05-23 | Boom Retracting Machinery |
Country Status (2)
Country | Link |
---|---|
US (1) | US3426916A (en) |
GB (1) | GB1174698A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2132555A (en) * | 1982-12-17 | 1984-07-11 | Cobra Spa | Floor covering for a motor vehicle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE385826B (en) * | 1974-10-22 | 1976-07-26 | Hiab Foco Ab | JOINT BRIDGE FOR LOAD CRANE |
US4039085A (en) * | 1976-06-10 | 1977-08-02 | Koehring Company | Crane with a pivoted boom and a float valve therefor |
DE3030820C2 (en) * | 1979-08-17 | 1987-01-29 | Coles Cranes Ltd., Sunderland, Tyne and Wear | Mobile crane with a telescopic boom |
FR2796632B1 (en) * | 1999-07-22 | 2001-08-24 | Potain Sa | DEVICE FOR FOLDING A CRANE BOOM WITH NESTABLE ELEMENTS |
US7762412B2 (en) * | 2007-04-26 | 2010-07-27 | Manitowoc Crane Companies, Llc | Mast raising structure and process for high-capacity mobile lift crane |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1214066A (en) * | 1959-01-21 | 1960-04-06 | Hebezeugwerk Sebnitz Veb | Hydraulic device for lifting the mast and tilting the boom of slewing tower cranes |
US3146893A (en) * | 1960-03-16 | 1964-09-01 | Ohio Brass Co | Derrick |
-
1967
- 1967-06-29 US US650032A patent/US3426916A/en not_active Expired - Lifetime
-
1968
- 1968-05-23 GB GB24554/68A patent/GB1174698A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2132555A (en) * | 1982-12-17 | 1984-07-11 | Cobra Spa | Floor covering for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE1531147A1 (en) | 1970-02-19 |
DE1531147B2 (en) | 1972-10-05 |
US3426916A (en) | 1969-02-11 |
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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 |