摘要:
Cleaning device (1) for cleaning a dewatering screen (7) in a wet or dry section or a wet felt in a press section of a paper making machine, which device comprises at least one rotatable spray nozzle (3), which is coupled to an air and/or liquid supply means (131, 132), wherein the cleaning device includes a motor (5) for rotating spray nozzle. Herewith is achieved that the rotational speed of the spray nozzle can be adjusted independently of the amount of medium and the pressure of said medium, which is required (or desired) for the necessary cleaning operation.
摘要:
A plasma display panel which uses a perforated metal plate having a thickness of 0.01 to 1.0 mm as a spacer and/or a discharge partitioning wall, and which further has an insulating layer that electrically insulates the metal plate from discharge electrodes.
摘要:
Devices for controlling the movement of yarn between a stationary yarn package (for example a spool) and a yarn-processing device having cyclic operation are known, which devices include a winding drum and yarn release means. In order to be able to feed a predetermined quantity of yarn to the yarn-processing device in more accurate and reliable manner, a device is proposed wherein the yarn release means include a first and a second annular element, which elements are movable relative to each other, and whereby the yarn moves between said annular elements.
摘要:
An outflow element (1) for the drainage of rain-water contains a lead plate (2) with a hole and an aluminium pipe (3) affixed in a sealing manner in the hole, whereby the extreme (4) in question of the outlet pipe contains bulges (8) and the re-modellable plate (2) has a collar (10) at the location of the hole, which, with the aid of a stainless steel clamping tube (9) which is to be pressed in the extreme in question, keeps the collar in pressing contact with the bulges. The other extreme (5) of the clamping tube is equipped with an external circumferential groove (6), within which an O-ring (7) is to be applied, with which a good sealing with drainage pipes to be connected thereto is realised. In the fabrication of the outflow element, use can be made of a widening tool, with which both the collar is deformed and the clamping tube is pressed into the extreme in question. Alternatively, the fabrication can also occur by bringing the clamping tube into the collar and subsequently stretching the diameter of the clamping tube so that the clamping tube pushes the collar into the bulge.
摘要:
Unbleached pulp (8) is combined with an aqueous alkaline solution (10) while in a state of low consistency to distribute a first amount of alkaline material substantially uniformly throughout the pulp. The consistency of the pulp is then increased to above about 20 % (12). Additional alkali (18) is applied onto the high consistency pulp (17) to provide a total amount of between 0.8 and 7 % by weight of oven dry pulp. The high consistency alkali containing pulp is then treated with oxygen (21) to effect delignification (20). High strength, low lignin pulps are formed which may be further bleached (25) to high brightness with reduced amounts of chemicals by following the methods of the invention.
摘要:
A foamed aerosol preparation for use as the base of cosmetics, quasi drugs, medicines, and so forth, which comprises 0.1 to 5 w/v% of a surfactant, 0.05 to 10 w/v% of a lower alcohol and/or a glycol, 3 to 25 w/v% of water, and 60 to 95 w/v% of n-butane gas. Despite of the use of n-butane gas as the propellant, this preparation lathers very well and is excellent in cracking sound when applied to the skin. Furthermore it is particularly useful from the viewpoint of environmental protection, because it is free from the problem of the depletion of the ozonosphere by virtue of the use of liquefied petroleum gas as the propellant instead of fluorocarbon gas heretofore used.
摘要:
In a method for the composition of a box-shaped body (2), the assumption is made of a flat expansion of the box-shaped body, which expansion is constructed as a coherent entity of walls (3-6) which are movable with respect to each other, whereupon the walls (3,5,6) are folded and the box-shaped body (2) is formed. The edges of the walls are thereby brought together and affixed to each other by means of gluing with, preferably, a two-component glue. The flat expansion of the box-shaped body (2) is usually made by means of the injection moulding of a plastic material. The box-shaped body (2) which is constructed in accordance with this method has walls which stand perpendicularly with respect to each other, a fact which makes the box-shaped body particularly suitable for use in a car for the fitting of accessories such as audio equipment, car radios, cassette players, etc. A vibration-free fitting without additional aids is simplified by the perpendicular running of the walls.