Abstract: A rotatable disc comprises a first zone in which a plurality of features, e.g. optical filters, are located at uniform angles from each other with respect to an axis of rotation of the disc and a second annular zone comprising sets of adjacent marks of a first type and of a second type. Each set may have a same total circumferential length, but the marks of a given type may have at least two different total circumferential lengths within a set of marks, or may be distinguishable by the relative position of marks of the different type to each other. The adjacent marks of the first and the second type may also form a code pattern that can be used for identifying the features. A method for adjusting the rotational orientation of the disc based on detecting the widths of the sectors is described.

Abstract: A coextrusion method for preparing an encased foodstuff is disclosed. The encased foodstuff has a casing containing a fibrous protein and a polysaccharide. The casing is coextruded over a filling material, such as a meat product, to provide the encased foodstuff.

Abstract: In a semicontinuous method for manufacturing bisphenols, reduced fouling in the pre-reactor is achieved by using two or more prereactors are used to continuously condense the dihydric phenol and the ketone or aldehyde to produce a partial reaction product in which the reaction of the dihydric phenol and the ketone or aldehyde is 10 to 70% complete. This partial reaction product is continuously removed from the pre-reactors, combined and introduced to a batchwise completion reactor. A stream of water or aqueous hydrochloric acid is added in alternating intervals to the pre-reactors, such that one is being cleaned by shifting the solubility of the bisphenol product at the same time that the other(s) continue to product a normal product stream which includes seed crystals for enhancing the performance of the batchwise completion reactor.