GB1245900A - Mobile or transportable cranes - Google Patents
Mobile or transportable cranesInfo
- Publication number
- GB1245900A GB1245900A GB01188/70A GB1118870A GB1245900A GB 1245900 A GB1245900 A GB 1245900A GB 01188/70 A GB01188/70 A GB 01188/70A GB 1118870 A GB1118870 A GB 1118870A GB 1245900 A GB1245900 A GB 1245900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- section
- luffing
- boom
- hoist
- 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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/703—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by flexible elements, e.g. cables, chains or bands
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
1,245,900. Transportable cranes. J. I. CASE CO. 9 March 1970 [29 April, 1969], No. 11188/70. Heading B8B. A crane 10, shown in working position in Fig. 1, comprises a luffing telescopic boom 24 mounted for slueing on a truck (not shown). The boom 24 includes a distal section 30 extended relative to an intermediate section 28 by means 110 including a cable 116, and a winch 112 secured to the end of the section 28 as shown in Fig. 5. Intermediate section 28 of the boom 24 is similarly extended relative to proximal section 26 by means 74 including a winch 78 and cable 80. The-crane 10 is readied for transport by luffing to near maximum; releasing a locking mechanism 124 between sections 28, 30; taking in cable on luffing hoist 126 while slacking off the cable 116 until section 30 is fully retracted in section 28; releasing a locking mechanism 72 between the sections 26, 28 and taking in further cable on the luffing hoist 126 while slacking off the cable 80 to reach the minimum working length of boom, Fig. 2 (not shown). The boom 24 is then lowered to the horizontal position and still further cable taken in on the luffing hoist 126 while the cable 80 is slacked off further to allow the section 28 to reach the fully retracted position, Fig. 3, with its inner end behind luffing axis 36.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82012169A | 1969-04-29 | 1969-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1245900A true GB1245900A (en) | 1971-09-08 |
Family
ID=25229944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB01188/70A Expired GB1245900A (en) | 1969-04-29 | 1970-03-09 | Mobile or transportable cranes |
Country Status (5)
Country | Link |
---|---|
US (1) | US3622013A (en) |
JP (1) | JPS4841295B1 (en) |
DE (1) | DE2018064A1 (en) |
FR (1) | FR2040348B1 (en) |
GB (1) | GB1245900A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139184A (en) * | 1983-05-05 | 1984-11-07 | Mannesmann Ag | Jib crane and its method of erection |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4919388B1 (en) * | 1970-03-28 | 1974-05-17 | ||
US3856151A (en) * | 1973-11-29 | 1974-12-24 | Case Co J I | Telescopic boom and jib assembly with means to maintain a predetermined angular position therebetween |
US3942554A (en) * | 1974-04-19 | 1976-03-09 | Werner Corporation | Extendable crane with folding conduit |
US4267675A (en) * | 1979-05-04 | 1981-05-19 | Joe R. Brown | Well working rig |
US4491228A (en) * | 1982-06-30 | 1985-01-01 | Fmc Corporation | Floating sheave type pendant pay-out system for pendant supported boom |
JP3765233B2 (en) | 1997-07-15 | 2006-04-12 | 株式会社小松製作所 | Boom of bucket excavator and method for manufacturing the same |
DE29720972U1 (en) * | 1997-11-26 | 1999-03-25 | Ec Engineering + Consulting Spezialmaschinen Gmbh, 89079 Ulm | Telescopic boom |
US6460307B1 (en) * | 2000-11-22 | 2002-10-08 | Blain, Iii Douglas H. | Boom attachment for a prime mover |
JP4030833B2 (en) * | 2002-01-04 | 2008-01-09 | 株式会社小松製作所 | Long structural member of work equipment |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US763969A (en) * | 1902-10-01 | 1904-07-05 | George R Dodd | Pole-hoister. |
US2698096A (en) * | 1953-05-04 | 1954-12-28 | Lillie V Hughes | Drag line extensible boom |
US2819803A (en) * | 1954-10-12 | 1958-01-14 | Leo B Obenchain | Boom for cranes |
GB871100A (en) * | 1959-03-12 | 1961-06-21 | Liebherr Hans | Mobile crane |
US3307713A (en) * | 1964-02-13 | 1967-03-07 | Greater Iowa Corp | Telescoping boom for material handling mechanism |
GB1081007A (en) * | 1964-04-29 | 1967-08-31 | Richier Sa | Improvements in or relating to folding tower cranes |
US3308967A (en) * | 1965-10-06 | 1967-03-14 | Byron F Barkley | Extensible boom crane |
DE1481733A1 (en) * | 1966-03-11 | 1969-06-26 | Andersson Lars Rickard | Mobile crane |
US3398645A (en) * | 1966-11-30 | 1968-08-27 | Nat Crane Corp | Multiple extension apparatus |
FR1546917A (en) * | 1967-03-11 | 1968-11-22 | Mobile lifting equipment, in particular automotive crane | |
US3465899A (en) * | 1967-08-03 | 1969-09-09 | Bucyrus Erie Co | Telescoping boom for hydraulic crane |
-
1969
- 1969-04-29 US US820121A patent/US3622013A/en not_active Expired - Lifetime
-
1970
- 1970-01-28 JP JP45007108A patent/JPS4841295B1/ja active Pending
- 1970-03-05 FR FR7007875A patent/FR2040348B1/fr not_active Expired
- 1970-03-09 GB GB01188/70A patent/GB1245900A/en not_active Expired
- 1970-04-15 DE DE19702018064 patent/DE2018064A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139184A (en) * | 1983-05-05 | 1984-11-07 | Mannesmann Ag | Jib crane and its method of erection |
Also Published As
Publication number | Publication date |
---|---|
US3622013A (en) | 1971-11-23 |
DE2018064A1 (en) | 1970-11-05 |
FR2040348A1 (en) | 1971-01-22 |
JPS4841295B1 (en) | 1973-12-05 |
FR2040348B1 (en) | 1974-10-11 |
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