Drilling apparatus
AssigneeMaschinen- und Bohrgerate-Fabrik Alfred Wirth & Co., K.G.
InventorsJakob Wolters, Josef Classen
Life of this patent
Estimating the term…
Abstract
A drill string is mounted on a mast which is angularly adjustable relative to a frame. A support is connected to the frame so as to be angularly adjustable and has an open aperture for the drill string. The support is to be mounted on and secured upon a stationary member, such as a pipe, disposed at the operating location of the drilling apparatus.
Claims9
A drilling apparatus comprising a frame structure, a mast, a pivoting axis and a support means having an adjustable length operably related to the frame structure and mast for connecting the mast to the frame structure, the mast being angularly adjustable relative to the frame structure about the pivoting axis by adjusting the length of the support means, a drill string extending along the mast, drive means for rotating the drill string, a support having an opening for the passage of the drill string, the support being pivotally connected to the frame structure, adjustable connecting means between the support and frame structure by which the support is angularly adjustable relative to the frame structure by adjusting the length of the connecting means, the support having a lower part defined by a tube-like member for mounting on the upper end of a stationary pipe,
In a drilling installation, a drilling apparatus and a stationary pipe disposed at the operating location of the drilling apparatus, the apparatus comprising:
- a frame structure, a mast, a pivoting axis and a support means having an adjustable length operably related to the frame structure and mast for connecting the mast to the frame structure, the mast being angularly adjustable relative to the frame structure about the pivoting axis by adjusting the length of the support means, a drill string extending along the mast, drive means for rotating the drill string, a support having an opening for the passage of the drill string, the support being pivotally connected to the frame structure, adjustable connecting means between the support and frame structure by which the support is angularly adjustable relative to the frame structure by adjusting the length of the connecting means, the support having a lower part defined by a tube-like member, and a stationary pipe having an upper end, the pipe projecting from a surface at the operating location of the drilling apparatus and through which the drill string passes, the lower part of the support enclosing the upper end of the stationary pipe and being supported and mounted thereon.
Dependencies are inferred from the claim text.