CA1066741A - Center lifting device - Google Patents
Center lifting deviceInfo
- Publication number
- CA1066741A CA1066741A CA261,602A CA261602A CA1066741A CA 1066741 A CA1066741 A CA 1066741A CA 261602 A CA261602 A CA 261602A CA 1066741 A CA1066741 A CA 1066741A
- Authority
- CA
- Canada
- Prior art keywords
- outer part
- inner part
- driving member
- lifting device
- center lifting
- 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
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/54—Internally-expanding grippers for handling hollow articles
- B66C1/56—Internally-expanding grippers for handling hollow articles for handling tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/46—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces by inflatable elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Replacement Of Web Rolls (AREA)
- Load-Engaging Elements For Cranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI752712A FI52209C (fi) | 1975-09-29 | 1975-09-29 | Keskiönostolaite. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1066741A true CA1066741A (en) | 1979-11-20 |
Family
ID=8509451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA261,602A Expired CA1066741A (en) | 1975-09-29 | 1976-09-20 | Center lifting device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4057279A (enExample) |
| CA (1) | CA1066741A (enExample) |
| DE (1) | DE2642794C3 (enExample) |
| FI (1) | FI52209C (enExample) |
| GB (1) | GB1549404A (enExample) |
| SE (1) | SE413659B (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189280A (en) * | 1977-11-16 | 1980-02-19 | Dohm Grant G | Windmill |
| DE3323239A1 (de) * | 1983-06-28 | 1985-01-24 | Industriewerk Nachf. Seifert & Co Kg, 8632 Neustadt | Vorrichtung zum anheben von coils, spulen oder dgl. |
| CN102583147B (zh) * | 2012-03-19 | 2014-09-10 | 山东齐鲁电机制造有限公司 | 汽轮机阀座装配工具 |
| CN119568892A (zh) * | 2024-12-14 | 2025-03-07 | 山东泰力起重设备有限公司 | 一种起重机用的吊装装置及其吊装方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE496763A (enExample) * | ||||
| US819359A (en) * | 1905-09-30 | 1906-05-01 | Wyllis H Markland | Tongs. |
| US1720732A (en) * | 1927-06-13 | 1929-07-16 | Western Electric Co | Article-handling device |
| US1822432A (en) * | 1930-04-25 | 1931-09-08 | Western Electric Co | Article handling apparatus |
| US2701736A (en) * | 1953-12-18 | 1955-02-08 | Heppenstall Co | Lifting device for handling convection spacer disks |
| US3088769A (en) * | 1961-10-18 | 1963-05-07 | Flex O Lators | Expansible lift for hollow objects |
| NL134331C (enExample) * | 1966-04-18 | |||
| US3892437A (en) * | 1973-02-09 | 1975-07-01 | Finnlines Ltd Oy | Center hoisting device |
-
1975
- 1975-09-29 FI FI752712A patent/FI52209C/fi not_active IP Right Cessation
-
1976
- 1976-09-15 SE SE7610228A patent/SE413659B/xx not_active IP Right Cessation
- 1976-09-17 US US05/724,250 patent/US4057279A/en not_active Expired - Lifetime
- 1976-09-20 CA CA261,602A patent/CA1066741A/en not_active Expired
- 1976-09-23 DE DE2642794A patent/DE2642794C3/de not_active Expired
- 1976-09-29 GB GB40436/76A patent/GB1549404A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI52209C (fi) | 1977-07-11 |
| US4057279A (en) | 1977-11-08 |
| DE2642794A1 (de) | 1977-04-21 |
| GB1549404A (en) | 1979-08-08 |
| SE7610228L (sv) | 1977-03-30 |
| DE2642794C3 (de) | 1981-08-27 |
| DE2642794B2 (de) | 1981-01-08 |
| SE413659B (sv) | 1980-06-16 |
| FI52209B (enExample) | 1977-03-31 |
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