Inventors:
Robert M. Bliemeister - Milwaukee WI
Assignee:
Allis-Chalmers Corporation - Milwaukee WI
International Classification:
F16J 1534
Abstract:
A seal for use in sealing an annular opening between a stationary member and a rotating cylinder telescopically arranged in the stationary member, the seal comprising an annular ring member circumscribing the cylinder adjacent the stationary member and closing the annular opening. The seal comprises weighting means extending axially away from a back side of the ring member to provide a counterweighting effect which causes a tilting of the ring member, whereby said tilting and the rotation of the cylinder moves the ring member into engagement with the stationary member to substantially seal the annular opening, all in accordance with the teaching of U. S. Pat. No. 3,042,389. In accordance with the present invention, means forming part of the seal is provided for adjusting the internal diameter of the annular ring member to compensate for manufacturing tolerances in the annular ring member and/or dimensional tolerances in the outer diameter of the rotating cylinder. In a further feature of the construction, the annular ring member is divided into a plurality of circumferentially extending segments in which adjacent segments are pivotally connected to each other to permit articulation of the segments to accommodate "out-of-round" portions of the rotating cylinder.