Patent ID: 6896121

Claim:
A conveyor pan for underground face and gate conveyors, with a bottom pan and a top pan for the guidance of scrapers of a scraper chain, the conveyor pan having a welded frame construction comprising side walls firmly fixed to one another, a conveyor base and a means of joining the conveyor pan, in which the side walls comprise mirror image single part rolled profiles with a constant profile form over the length of the conveyor pan, whereby the rolled profile comprises a base arm and a top arm both angled outwards as well as an extended intermediate arm adjoining the base arm and the top arm, the rolled profile which is provided with a vertical linear offset, onto which the extended intermediate arm on its inside at least one step is formed for the support and welding on of at least one intermediate plate for stiffening the frame construction, an upper intermediate arm section above the vertical linear offset is displaced outwards by more than a thickness equal to that of the side walls.