A conveying apparatus for the conveying of beverage bottles from a beverage bottle treatment machine to a beverage bottle packaging machine in a beverage bottling plant, and a conveying apparatus for the conveying of products from a product treatment machine to a product packaging machine. Combustion is confined within the chamber by injecting a liquid fuel as a film over substantially the entire area of the chamber walls. The insulating layer and grids are formed with openings. Also describe herein are imaging catheters that may be used without cutters. Novel methods for fishing, with a slidable reversibly detachable indicator, at a depth greater than the length of a fishing rod are presented. The paper path runs between the rotary cutter and the fixed blade assembly.