Patent · US Expired

Cutting machine

US4589701A · kind A · utility

21Cited by

5References

18Claims

0Family size

Assignee

Gewerkschaft Eisenhutte Westfalia GmbH · DE

Inventors

Klaus Beckmann · Grafenau, DE
Kunibert Becker · Werl, DE

Key dates

Filing date	Aug 3, 1984
Grant date	May 20, 1986
Priority date	—
Expiry date	Aug 3, 2004

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A cutting (winning) machine comprises a frame which is provided with a pair of endless drive tracks. A mast is pivotally mounted on the frame for movement between an upright working position and a non-working position (in which it lies substantially flat on the frame). The frame also supports a platform, which is also pivotal relative thereto in the vertical plane. A carriage is arranged to move along the mast, the carriage supporting a cutting head such as a shearer drum. The mast can be positioned in an upright position at either end of the frame, so that the machine can carry out work in both directions of travel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.