FR1098910A - Improvements to clamshell control devices - Google Patents
Improvements to clamshell control devicesInfo
- Publication number
- FR1098910A FR1098910A FR1098910DA FR1098910A FR 1098910 A FR1098910 A FR 1098910A FR 1098910D A FR1098910D A FR 1098910DA FR 1098910 A FR1098910 A FR 1098910A
- Authority
- FR
- France
- Prior art keywords
- clamshell
- control devices
- devices
- control
- clamshell control
- 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
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/12—Grabs actuated by two or more ropes
- B66C3/125—Devices for control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1098910T | 1952-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1098910A true FR1098910A (en) | 1955-08-26 |
Family
ID=9619435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1098910D Expired FR1098910A (en) | 1952-04-01 | 1952-04-01 | Improvements to clamshell control devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1098910A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2985481A (en) * | 1957-05-29 | 1961-05-23 | Heppenstall Co | Adjustable opening tongs |
-
1952
- 1952-04-01 FR FR1098910D patent/FR1098910A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2985481A (en) * | 1957-05-29 | 1961-05-23 | Heppenstall Co | Adjustable opening tongs |
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