Claims
- 1. Apparatus comprising in combination a stationary member and a rotating cylinder telescopically arranged in said stationary member with said cylinder coacting with said stationary member to define an annular opening therebetween disposed in circumscribing relationship to said cylinder, and a seal circumscribing said cylinder adjacent said stationary member and closing said annular opening, said seal comprising an annular ring member formed by a plurality of pivotally connected ring segments and having a narrow inner circular edge portion adapted to reset on and make loose contact with the outer periphery of said cylinder and having a flat annular surface extending radially outwardly from said edge portion and adapted to engage said stationary member to close said annular opening, weighted means extending axially away from a back side of said ring opposite said annular surface, said weighted means extending from a location on said back side that is radially outward of said inner edge portion and providing together with the weight of said ring a center of mass axially backward of said edge portion for tilting said ring whereupon said tilting and the rotation of said cylinder moves said ring member into engagement with said stationary member to substantially seal said annular opening, wherein the improvement comprises at least one of said segments having a rigid arcuate length extending and adjusting means engaging at least one portion of said ring segment, threaded bolting means engaging said portion of said ring segment and projecting through said adjusting means, and threaded fastening means engaging the threaded projecting end of the bolting means and securely clamping said adjusting means to the ring segment in a fixed position of the adjusting means relative to the ring segment, whereby the inner circumferential dimension of the segment and the entire ring member is made adjustable to provide and maintain a fixed inner circumferential dimension providing the loose contact with the outer periphery of said cylinder required in order that the ring member may move axially along the cylinder into sealing engagement with the stationary member.
Parent Case Info
This is a continuation of application Ser. No. 010,674, filed Feb. 9, 1979, and now abandoned.
US Referenced Citations (3)
Continuations (1)
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Number |
Date |
Country |
Parent |
10674 |
Feb 1979 |
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