Propeller shaft liner and inserting apparatus
OwnerMartin H. Starkinventor
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Abstract
An improved propeller shaft liner of the type employed to damp propeller shaft vibrations and apparatus for inserting such liner into the propeller shaft. A tubular liner of paper is formed with a symmetrically disposed series of axially or helically extending groove-like indentations which provide the formed liner tube with a resiliently resisted radial and circumferential compressibility characteristic. This compressibility enables the liner to be inserted into a propeller shaft having an internal diameter less than the outer diameter of the liner, with the liner being symmetrically deformed to engage the shaft in an accurately centered position to achieve a proper rotary balance of the shaft. Apparatus for inserting the tube into a shaft is also disclosed.
Claims11
A liner for a hollow, cylindrical member having a bore of predetermined diameter, said liner comprising a tube of flexible material and of substantially uniform wall thickness, said tube having an outside diameter greater than that of said bore, the entire cross section of the wall of said tube being radially deformed to provide a plurality of longitudinally extending, circumferentially spaced, concavo-convex grooves which enable a resiliently resisted, radial compression of said tube at said grooves to a lesser outside diameter sufficient to permit insertion of said tube in said bore.
Dependencies are inferred from the claim text.