Adjustable foot for setting up equipment in alignment, has washer and supporting portion with convex and concave surfaces of equal curvature radius, such that angle of washer is adjustable with respect to supporting portion

摘要

An annular element (1) has an internal screw thread (5) engaging with an external screw thread (4) of a shaft element (2). The annular element top surface (7) slopes downwardly in radially outward direction. A washer (3) and a supporting portion have convex and concave surfaces of equal curvature radius, such that angle of washer is adjustable with respect to the supporting portion.