Patent · US Expired

Apparatus for controlling the position of a mineral mining machine

US4571003A · kind A · utility

108Cited by

8References

9Claims

0Family size

Assignee

Gewerkschaft Eisenhutte Westfalia GmbH · DE

Inventors

Franz Roling · Grafenau, DE
Gerhard Merten · L Atkinson Lane, DE
Bernd Steinkuhl · Grafenau, DE

Key dates

Filing date	Jan 5, 1984
Grant date	Feb 18, 1986
Priority date	—
Expiry date	Jan 5, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/32631
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Apparatus for controlling the position of a mineral mining machine, such as a coal plough, guided for movement back and forth along a guide employs inclined piston and cylinder units coupled via ball-and-socket joints to brackets on a conveyor supporting the guide and to connectors which are pivotably connected to the conveyor. Assemblies have parallel elongate beams which are guided on roof supports and linked to the connectors. Each connector is of multi-part construction with a main skid resting on the floor of the working and connected to the conveyor and to the associated beams. A further complementary component fits onto the main skid and the parts of the connector have curved recesses which combine to form a socket for receiving a ball of the associated unit.

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