摘要:
An apparatus for autoclave continuous decatizing of fabrics, having a rotating cylinder which closes the slot through which a backing cloth and the associated fabric pass to enter and exit the autoclave is provided. A foraminous hollow member, which is adapted to reduce the percentage of oxygen existing within the autoclave (1), is located adjacent to the backing material and the fabric where the backing material and the fabric enter the autoclave. Thin plates (14) are further preferably provided, movable closer to the inside of the fabric (4) immediately before it exits from the autoclave (1), under the external control, in order to be able to possibly continue the "sandwich" pressing action which takes place along the periphery of the foraminous cylinder (2), or to have in this area a free vaporizing stretch. Furthermore, particular preferred embodiments have been described for seals (19, 20) opposite the lead-in central cylinder (5), for the side surface of the latter, as well as for the antifriction material sheets (21, 22) interposed between the cylinder and inflatable seals (19, 20), for the side surface of said cylinder (5), and for the seals (25, 26; 25', 26') at the longitudinal ends thereof.
摘要:
There is described herein an improved method for decatizing in an autoclave wherein steam is led into the jacket surrounding said autoclave, at a pressure level increasing up to a stationary level within the autoclave. That is obtained by means of an automatically and adjustably controlled throttling valve at the steam inlet to the jacket, the valve being for instance driven by means of a microprocessor routine, and having an autoclave inlet valve associated therewith. In case the outer jacket is missing there might possibly be provided only an automatically controlled autoclave inlet valve performing also as a throttling valve, in order to have a gradually increasing inlet pressure.
摘要:
A device for feeding into and respectively withdrawing from an autoclave (1), of fabric (11) to be continuously decatized under pressure, together with a felt back cloth (3), includes in addition to the already known lead-in center cylinder (5) between the two runs of fabric going in and coming out (3, 11; 3', 11'), a pair of side cylinders (4, 6) cooperating with the above (5) and replacing the already known inflatable gaskets. It is the fabric-felt assembly (3, 11) itself that, by being compressed between the two pairs of cylinders (4, 5; 5, 6) builds a barrier against steam leakages. The center cylinder (5) and/or the two side cylinders (4, 6) may be recessed in order to define, in the nip area, a recess shallower that the thickness of the paired materials. In case all three cylinders (4, 5, 6) are smooth, the distance thereof will be suitably controlled for said purpose, and in both nip areas antifriction material pads (13, 13'), such as teflon, are preferably provided, in order to seal, at both ends of the cylinders, the gaps existing between the end of the felt and the side support members (15) of said cylinders.
摘要:
An automatic apparatus for continuously forming cloth rolls of a selected length from great size rolls or continuous bands made of a number of cloth pieces sewn together, comprises a detecting means such as a photocell responsive to a seam between two adjoining pieces, positioned upstream of a measuring station which in turn is upstream of a cutting station. Selected advancements of the cloth and corresponding cutting operations are actuated by known automatic devices which are disabled whenever the above-mentioned detecting means senses a seam between two pieces sewn together. Another detecting means such as photocell in correspondence of the measuring station causes the cloth to stop as soon as a seam has reached this position, being preset to this operation by the first-mentioned photocell. With the automatic advancement disabled, the cloth is caused to advance, after the stop, by a fixed length corresponding to the distance between the measuring station and the cutting station. A tube feeding station is also provided for supplying each time a tube being the core of a new roll to be formed, from a tube magazine at a winding station. There are also provided devices for bending the leading edge of the cut cloth around an empty tube, causing this edge to adhere thereon without formation of pleats and discharging finished roll.
摘要:
An apparatus is provided for preparing framed diapositive assemblies by automatically coupling together a diapositive, an integrally formed frame and a transparent plate. The apparatus comprises three partially overlapping horizontal discs, each formed with the same number of openings, symmetrically positioned around a central vertical pivot. The discs are mounted on their pivots at a short mutual distance and the pivots, one of which is driven to rotate, are synchronized in motion. A magazine is positioned over and in correspondence with the upper disc and another magazine over and in correspondence with the lower disc, respectively for feeding into the openings the transparent plates and the frames. The opening on the intermediate disc for the diapositive, is formed at the periphery of the disc itself and comprises an elastic support means, such as two side brushes. At the central overlap zone a ram means is provided to push downward, through the opening in the discs, the plate and diapositive onto the underlying frame, resting on a stationary rigid surface as a base, which is interrupted at a discharge zone.