Continuous boring or cutting machine
US4171148A · kind A · utility
0Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1978 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Jan 17, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C31/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a continuous boring or cutting machine provided with tools animated by a sweeping movement, said machine comprising a plurality of tool-holders mounted to oscillate on a rotating structure, these oscillations being controlled in synchronism by a rotary jack coaxial with respect to the rotating structure, the rod of the jack being fast with an element to which each tool-holder is connected by a connecting rod having a foot jointed on to said element and having a head jointed on to the tool-holder. The invention is more particularly applied to tunneling machines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.