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US 4,487,531 AGranted
Travelling bracket
AssigneeBochumer Eisenh/u/ tte Heintzmann GmbH & Co. KG
InventorsErnst-G/u/ nter Nerlich, Hans-Ferdinand Bemmerl, Peter Kr/o/ ninger
Life of this patent
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Abstract
A trough-shaped travelling bracket of a retracting and guiding arrangement of a mine roof support has fixing elements at its mine-face end for releasably coupling with an abutment, wherein the fixing elements are exchangeable, but fixedly connectable with a web of the travelling bracket.
Claims6
A travelling bracket of a retracting and/or guiding device of mine support, particularly of a mine roof support, the travelling bracket comprising
- a web flatly lying on a mine floor in a travelling path and having a mine face side;
- and
- fixing elements provided at said mine face side of said web and arranged for releasably coupling with an abutment longitudinally displacing in a mine;
- and means for exchangeably but at the same time rigidly connecting said fixing elements to said web.
1 more element
Dependencies are inferred from the claim text.