Abstract: A mounting assembly for a scraper blade or cutting blade includes two retaining devices for retaining a first part of the blade therebetween. An operational part of the blade extends from the retaining devices to scrape debris from a roll. One of the retaining devices is a plate made up of a plurality of fibrous layers arranged to provide predetermined strength to the blade in a first direction while allowing flexing of the blade in a second perpendicular direction. The fibrous layers are primarily of woven or laid glass but these layers can also include carbon, ceramic, polyester or aramid fibers. These fibers or monofilament reinforced laminations are encapsulated and bonded in a thermosetting resin to provide desired operational properties.

Abstract: A doctor assembly for doctoring a cylinder (12) includes a doctor blade (17) which is retained at its rear end in a blade holder constituted by a multiplicity of adjacent, narrow pivot plates (15) which are individually pivotable about a shaft (14) that is fixed below a rigid support member (10) that is connected to a main support bar (11), and an inflatable bag (28) is disposed between the pivot plates and the rigid support member (10) so as to enable the pivot plates to pivot relative to one another toward and away from the support member (10) and enable the doctor blade attached thereto to conform to the exact shape of the cylinder (12).

Abstract: A doctor for a papermaking machine comprising a blade holder carrying a doctor blade and a pressure plate bearing against the doctor blade, the pressure plate and/or the doctor blade being formed of a multiplicity of short contiguous sections, with or without links connecting the sections together.

Abstract: A doctor comprising a support, a blade holder including a tang, disposed adjacent the support, a doctor blade supported in the blade holder, the support and the tang having opposed flat surfaces, a series of spacers spaced along the length of the doctor, each of which is adjustable to vary the spacing between the said flat surfaces while maintaining them parallel, and means for securing each spacer in adjusted position.