Brush seal and a method of manufacture
AssigneeROLLS-ROYCE plc
InventorStuart A. Bridges
Life of this patent
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Abstract
A method of manufacture of a brush for use as a seal includes the steps of winding a filament or filaments of bristle material onto a mandrel which carries on each side thereof a side-plate of the brush so that the bristle material overlies an exposed face of each side-plate at an angle of 45.degree.. After winding, a second side-plate is made to overlie the bristle material to sandwich it between the two plates and the side-plates and bristle material are welded or fused together at one edge thereof. The bristle material is then cut and the plates removed from the mandrel to produce two brushes with bristles projecting from the other edge at an angle.
Claims7
A method of manufacture of a brush comprises the steps of:
- mounting a first side-plate of rigid material on a mandrel;
- winding at least one continuous filament of bristle material onto the side-plate in such a manner that the material lies across an exposed face of the side-plate;
- positioning a further side-plate of rigid material to overlie the bristle material on the face of the first side-plate thus sandwiching the bristle material between the two side-plates, leaving some bristle material projecting from one edge of the side-plate pair;
- integrally joining the bristle material to the side-plate pair between which it is trapped at the other edge thereof;
- and
- cutting the bristle material and removing the side-plates from the mandrel.
Dependencies are inferred from the claim text.