Mineral winning plough

US4583785A · kind A · utility

Assignee

• Gewerkschaft Eisenhutte Westfalia GmbH · DE

Inventors

• Oswald Breuer · Lichtenau, DE
• Gerhard Merten · L Atkinson Lane, DE
• Bernd Steinkuhl · Grafenau, DE
• Christoph Rassmann · Grafenau, DE

Key dates

• Filing date: Apr 9, 1984
• Grant date: Apr 22, 1986
• Expiry date: Apr 9, 2004

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21C27/32
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A coal plough has an elongate plough body which is provided with cutters at each end. The plough body is supported at each of its two ends, by a flat narrow skid on a plate of a plough guide. The skids constitute wear-resistant members and are connected to the plough body in a readily replaceable manner. The skids are so shaped that they guide the plough in the lower zone of the plough guide, and establish connection between the plough and the plough drive chain.