Cylinder cover fastening devices

Claim 1

A cylinder blanket comprising in combination: a flexible split ring annular band having one end and another end; interfitting male and female parts coextensive in length, said male part including a base having a rounded longitudinal tongue depending from the base and a flange integral with and extending from the base providing a leading edge for attaching the male part to the one end of the split ring annular band; a support structure having a generally U-shaped cross-section adapted to fit snugly within a slot provided in a cylinder, said support structure having a flange extending outwardly from the uppermost portion thereof for joining the support structure to said other end of the split ring annular band; means for attaching each of said male part and said support structure to the one end and the other end of the split ring annular band; a composite coating of resilient polymeric material on the exterior peripheral surface of said split ring band and the base of said male part, said composite coating extending into and on the base and sidewalls of said support structure and defining a female part having elastic sidewalls extending upwardly and curving inwardly thereby establishing a rounded longitudinal groove, said elastic sidewalls having sufficient resiliency so as to conform to the tongue when engaged but permit forceable separation of said tongue and sidewalls.