The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 31, 1977

Filed:

Mar. 01, 1976
Applicant:
Inventor:

Werner Georg, Lunen, DT;

Assignee:

Gewerkschaft Eisenhutte Westfalia, Wethmar near Lunen, DT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299 34 ; 198735 ; 198861 ; 299 43 ;
Abstract

A mineral mining installation employs a scraper-chain conveyor with separate channel sections each with a floor plate connected between sigma-shaped side walls arranged end-to-end and a scraper-chain assembly is circulated along the channel sections to transport material. L-shaped components are attached to the side walls of the channel sections and these components define or connect with spaced-apart supports projecting beneath the lower flanges of the side walls to produce slots therewith which receive bottom plates closing off the underside of the conveyor. Tongues on these bottom plates serve as a locating and stop means engageable with the supports. A guide for a machine and for receiving the chain used to move the machine is supported by the L-shaped components on the mineral face side and a multi-part displaceable screen is carried by the L-shaped components on the opposite side.


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