Abstract: To flush ink out of the ink gun 15 of an ink jet printer, it is connected to a suction source 23 (normally used for gutter suction) through a purge line 33, purge valve 35 and gutter valve 27, while the ink feed line 13 is connected to the solvent reservoir 17 through a feed valve 11 and a flush valve 37. This draws solvent from the solvent reservoir 29 into the feed line 13 and the ink gun 15. Then, the purge line 33 is isolated from the suction device 23, and the feed valve 11 connects the feed line 13 to a supply of ink pressurized by ink pump 5. The pressurized ink is driven into the feed line 13, driving some of the solvent already in the feed line and the ink gun 15 out through the nozzle of the ink gun 15. The ink flow is then stopped before fresh ink reaches the ink gun 15. This avoids ink drying in the ink gun 15, blocking the nozzle, while the jet is not running.

Abstract: A waist adjustment mechanism for a garment enables the waist size of the garment to be easily and conveniently adjusted to accommodate the extensive range of waist sizes among individuals. The waist adjustment feature consists of a series of opposed fastening elements disposed along the interior surface of the waistband. Engagement of select ones of the opposed fastening elements reduces the waist of the garment to the desired size. When used in connection with a pair of trousers, the trousers may optionally be provided with adjustable ankle portions which facilitate the wearer in putting his foot through the ankle openings.

Abstract: Door constructions are provided including a frame, a core, and on both the inner and outer faces of the core an iron plate at least 0.2 millimeters thick with a wooden layer adhesively secured to the outer surfaces thereof. Preferably the core provided is a material having superior heat insulating properties with a heat conductivity of between about 0.15 and 0.05 as well as a diffusion resistance at least 20 times greater than that of air. In a preferred embodiment, each of the iron plates has a wooden layer adhesively secured to both the inner and outer surfaces thereof.

Abstract: A divisible slip-casting mold has filter layers which incorporate a combination of different types of fluid-flow conduits to improve the mechanical strength of the mold while providing the filter layers with substantially uniform fluid-flow properties. The conduits include major portions of blind holes installed in straight lines and minor portions of porous ropes arranged in curved lines. The porous ropes are essentially installed in those portions of the filter layer having a mechanical strength which is inferior to the predominant portions of the filter layer, and the blind holes are essentially installed in the predominant portions of the filter layer. Thus, improved mechanical strength and substantially uniform fluid-flow properties are provided substantially throughout the filter layers of the mold.

Abstract: Fibre material is defibrated and dispersed in an air flow and introduced through an inlet (2) into a forming head (1). In the forming head (1) the inlet transforms to a single-curved convex surface (5), which leads all the way to an accept outlet (6). A screen (7) is located at adjustable distance from the curved surface (5) for dividing ingoing fibre/air flow into accept and reject. An outlet (10) for the reject is located behind the screen (7). At a distance of 10-150 mm from the accept outlet (6) a running air-pervious support (27) is located, on which the web precipitates.