Extendable end assembly for a mine face cutting roller
US6244664A · kind A · utility
10Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C25/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a hewing or cutting roller (1) of variable cutting width, in which two pivotable tool carriers (4, 5) for receiving cutting or hewing tools are arranged on at least one lateral end face (2) of the roller transverse to the axis of the hewing or cutting roller (1), one of the tool carriers carries a locking pin (10) which cooperates with a hook-shaped locking member of the other tool carrier in the extended position of the tool carriers (4, 5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.