GB1339979A - Folding crane - Google Patents
Folding craneInfo
- Publication number
- GB1339979A GB1339979A GB2089071A GB2089071A GB1339979A GB 1339979 A GB1339979 A GB 1339979A GB 2089071 A GB2089071 A GB 2089071A GB 2089071 A GB2089071 A GB 2089071A GB 1339979 A GB1339979 A GB 1339979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boom
- pivot
- folding
- folding crane
- point
- 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
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
1339979 Folding cranes HOPPER Inc 19 April 1971 [9 March 1970] 20890/71 Headings B8B and B8H A folding crane comprises a base 13 on which a first boom 15 is pivotally mounted and swing- able in a vertical plane by means of hydraulic rams 22, a second boom 18 connected by a pivot pin 20 to the boom 15, a hydraulic ram 26 is pivotally connected to the first and second booms 15, 18 at pivot points 27, 28 respectively for swinging the second boom 18 about its pivot pin 20. The flange on which the pivot point 28 is mounted passes between the two laterally spaced boom elements 16 of the first boom 15 on folding crane, Fig. 1 (not shown), such that point 28 lies on the other side of the line "L" which joins the pivot points 20, 27 from that shown. The second boom 18 is formed of extensible beams (32), (33), Fig. 5 (not shown), the beam (33) being extended by means of an hydraulic ram (37)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1739070A | 1970-03-09 | 1970-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1339979A true GB1339979A (en) | 1973-12-05 |
Family
ID=21782329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2089071A Expired GB1339979A (en) | 1970-03-09 | 1971-04-19 | Folding crane |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5129287B1 (en) |
CA (1) | CA919124A (en) |
DE (1) | DE2109429A1 (en) |
FR (1) | FR2081797B1 (en) |
GB (1) | GB1339979A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2444639A1 (en) * | 1978-12-20 | 1980-07-18 | Potain Sa | HANDLING EQUIPMENT, PARTICULARLY FOR A SELF-PROPELLED MACHINE |
FR2457240A1 (en) * | 1979-05-22 | 1980-12-19 | Montgon Serge | Articulated and telescopic hydraulic crane - has folding sections for high lift and long horizontal reach |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6807718U (en) * | 1967-11-17 | 1969-10-09 | Central Electr Generat Board | BOOM FOR A LIFTING AND LOAD SUPPORT CONSTRUCTION AND CONSTRUCTION WITH SUCH A BOOM |
-
1971
- 1971-02-01 CA CA104107A patent/CA919124A/en not_active Expired
- 1971-02-19 JP JP789571A patent/JPS5129287B1/ja active Pending
- 1971-02-27 DE DE19712109429 patent/DE2109429A1/en not_active Withdrawn
- 1971-03-08 FR FR7107988A patent/FR2081797B1/fr not_active Expired
- 1971-04-19 GB GB2089071A patent/GB1339979A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA919124A (en) | 1973-01-16 |
JPS5129287B1 (en) | 1976-08-24 |
FR2081797A1 (en) | 1971-12-10 |
DE2109429A1 (en) | 1971-11-25 |
FR2081797B1 (en) | 1975-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |