Patent · US Expired

Supply of liquid media for a hydraulic-mechanically operating mine working machine with sword

US4555142A · kind A · utility

0Cited by

2References

8Claims

0Family size

Assignee

M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft · DE

Inventors

Joachim Holz · Dortmund, DE
Wolfgang Meier · Jüchen, DE
Karl H. Schwarting · Voerde, DE
Heinrich Goris · Hamminkeln, DE
Kurt Ogorek · Oberhausen, DE

Key dates

Filing date	Dec 9, 1983
Grant date	Nov 26, 1985
Priority date	—
Expiry date	Dec 9, 2003

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/046
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A hydraulic-mechanically operating mine working machine includes a multi-part sword engaging a mine longwall conveyor from below. The machine is pulled by a traction rig disposed on the stowing side of the longwall conveyor, which is supplied from the drift with the liquid media needed for cutting and for control purposes via drag lines accommodated in a special duct on the stowing side. The connection between the drag lines arriving on the stowing side and the working machine at the adit end is established by way of a hose hookup block connected with the tractor hookup block, the tractor hookup block and the sword of the working machine engaging the longwall conveyor from below.

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