Tunneling machines and other cutting machines
US4170383A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1978 |
| Grant date | Oct 9, 1979 |
| Priority date | — |
| Expiry date | Jan 17, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/115
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a tunneling machine or other machine provided with tools for cutting materials from a wall located in front of the machine, said machine comprising a movable frame carrying a head rotatably driven about an axis, said head bearing at least one bucket for picking up said materials after cutting and for dumping the materials on or towards a conveyor, said bucket having an inlet opening for picking up the materials when the bucket passes through a low position during the rotation of the head, and said bucket having an outlet opening for dumping the materials, said outlet opening being offset to the rear of the head with respect to the said inlet opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.