Shield type support for use in underground mining with lemniscate guide rods
AssigneeThyssen Industrie AG
InventorsHarry Oppenlander, Ulrich Wilde
Life of this patent
Estimating the term…
Abstract
A shield type support for use in underground mining comprises a floor construction with one or more pressure operated extensible and retractable rams mounted on the floor and connected at their upper end to a roof-member. The roof-member is articulated at one end to a breaking shield which has an opposite end which is supported by lemniscate guide rods. The lemniscate guide rods are carried on a support which is mounted for adjustable movement on a column supported on the floor. In addition, this support also advantageously carries an additional adjusting element in the form of a telescopically retractable and extensible ram connected between the support and the roof structure at a spaced location from the other rams.
Claims12
A shield-type stope support for use in underground mining, comprising a floor construction, at least one fluid pressure operated extensible and retractable ram having a top end, and having a bottom end mounted on said floor construction, a roof member connected to said top end of said ram, at least one column mounted on said floor construction extending upwardly therefrom toward said roof member, a breaking shield having one shield end pivotally connected to said roof structure at a spaced location from the connection of said roof structure to said ram and an opposite shield second end, a lemniscate support mounted on said column for upward and downward movement thereon, and a pair of lemniscate guide rods having first and pivotally connected to said support and opposite second ends pivotally connected to said shield second end.
Dependencies are inferred from the claim text.