FIELD: hoisting facilities. SUBSTANCE: this erection ladder can be used for hoisting loads to considerable height. Ladder has U-shaped platform, large and small footsteps, sling unit, hoisting unit in form of mounted-type crane with four-row rope pulley unit. Scaffolding and cradles are located between flexible members with footsteps. Mounted on scaffolding is winch with reduction unit. Upper ends of flexible members are secured on catchers which are interacting with trippers. Lower ends are secured on supporting frame. EFFECT: high efficiency. 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2049715C1 |
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|
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|
SU1379430A1 |
| ATTACHED CRADLE | 1992 |
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|
RU2781171C1 |
| 0 |
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SU178461A1 | |
| APPARATUS FOR FEEDING OBJECTS ON THE CTRUCTURE | 0 |
|
SU856969A1 |
| TOWER FOR SERVICING UPPER PARTS OF A ROOM | 0 |
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SU740696A1 |
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RU2492132C2 |
