摘要:
A microswitch in which a good snap action feeling is obtained and an operating stroke is large is provided. Included in the microswitch is a swingable lever which is pushed by a pressing projection of a push button swingably pivotally supported. One end of the lever is pivotally supported and the other end is coupled with one end of a movable member having a movable contact. The movable member is biased by a spring in one direction.
摘要:
A microswitch in which a good snap action feeling is obtained and an operating stroke is enhanced is provided. A compession spring is interposed between a movable member and a swingable lever which are respectively pivotaly supported at close positions. The swingable lever is operated by a push button which is vertically slidable. Further, restricting plates to restrict the motion in the width direction of the movable member are attached to the push button. A positioning member to hold the swingably lever to the position which faces the push button when the microswitch is assembled is also provided.
摘要:
A polarized relay with an electromagnetic drive comprises an electromagnetic yoke composed of a core wound with a coil and a yoke body, and having one end portion of one magnetic polarity and a pair of bifurcated end portions of the other magnetic polarity opposite to the one magnetic polarity. The bifurcated end portions are separated in opposition from each other. The one end portion of the yoke is disposed between the bifurcated end portions so as to cooperate to form a pair of working gaps. A movable block of a substantially C-like configuration incorporating a permanent magnet has two magnetic pole pieces which are disposed within the working gaps, respectively. Guide is provided for guiding the movable block in response to energization and deenergization of the coil so that the pole pieces are movable within the respective working gaps. A contact mechanism including movable contacts is mechanically coupled to the movable block to make or break circuit.
摘要:
A photo-curable composite material used for preparing various stencils for screen printing, textile printing or the like, which comprises a flat, flexible and photo-transmitting thin film (A); a flat and flexible film (B); a liquid photo-curable resin and a flat screen material, said films (A) and (B) being air-tightly bonded to each other at the peripheral portion thereof to form a flat inner space therein, said liquid resin being filled in said inner space to form a layer and said screen material also being placed in the inner space substantially in parallel with the inner walls of the films (A) and (B).
摘要:
A method for the preparation of semipermeable membrane which comprises exposing porous shaped articles of polysulfone to a plasma.The resulting semipermeable membrane is very useful for separating substances by reverse osmosis or ultrafiltration.
摘要:
A novel original plate for producing matrix which has improved strength, mold releasability and dimensional stability during production of matrices consists of a laminated structure of a metal base, a bonding layer, a relief supporting layer and a relief of a photo-polymerized resin, said relief supporting layer comprising a resin similar to that of the relief or having a high affinity with that of the relief.
摘要:
Ultrathin membranes for separating substances are obtained by exposing shaped articles comprising a water-soluble polymer or a mixture of a water-soluble polymer and water-insoluble polymer to a plasma of a gas selected from helium, argon, nitrogen, hydrogen, oxygen, carbon monoxide, carbon dioxide, ammonia, a hydrocarbon having 1 to 10 carbon atoms, an epoxide having 2 to 10 carbon atoms, or an alkylamine, or a mixture of these substances to crosslink the surface layer, and then washing the exposed articles with water to remove the unreacted portions. The membrane exhibits outstanding performance characteristics when used in the processes for separating or concentrating substances, such as reverse osmosis, ultrafiltration, and the like.
摘要:
A method for the rapid analysis of a cation contained in a liquid, which comprises filtering a liquid sample through a cation exchange filter paper having a high rate of ion exchange, which was made from fibers having cation exchange functional groups, thus collecting substantially the entire amount of the cation contained in said liquid sample in the top surface layer of said filter paper, and analyzing the cation-loaded filter paper as such or the eluate obtained by elution of the cation to be analyzed from said cation-loaded filter paper, to determine the cation.
摘要:
Relieved pattern of a resin original pattern plate, which does not exhibit fluidity at transferring temperature and possesses elastic modulus no smaller than 10 kg/cm.sup.2, preferably no smaller than 100 kg/cm.sup.2, is transferred onto thermoplastic resin material having fluidity at the transferring temperature (ASTM D1238, load 21.6 kg) of at least 0.01 dg/min, preferably at least 0.1 dg/min, by pressing the thermoplastic resin material to the original pattern plate under a pressure condition where elastic deformation of the original pattern plate is kept within 10%. The resin original pattern plate is prepared by controlling the photo-polymerizable resin composition to adjust its crosslink-ability and then photo-polymerizing, whereby the resulting resin original pattern plate possesses an elastic modulus of 10 kg/cm.sup.2 or higher at transferring temperature. The photo-polymerizable resin composition includes, as its major ingredients, either polymer, polyfunctional monomer (10-90% by weight, preferably 30-70% by weight, and having viscosity of at least 10.sup.3 poise at transferring temperature), photo-sensitizer and thermal polymerization inhibitor, or cross-linkable polymer (having at least 1000 molecular weight and double bonds at least one for each 1000 molecular weight), monomer (5-50% by weight, preferably 10-40% by weight), photosensitizer and thermal polymerization inhibitor.
摘要翻译:在转印温度下不具有流动性并且不小于10kg / cm 2,优选不小于100kg / cm 2的弹性模量的树脂原版图案的缓冲图案转印到在转印温度下具有流动性的热塑性树脂材料上 (ASTM D1238,负荷21.6kg)为至少0.01dg / min,优选至少0.1dg / min,通过在原始图案板的弹性变形保持在其内的压力条件下将热塑性树脂材料压制到原始图案板上 10%。 通过控制光聚合性树脂组合物调节其交联性,然后进行光聚合,制备树脂原图板,由此得到的树脂原始图案板在转印温度下的弹性模量为10kg / cm 2以上。 可光聚合树脂组合物包括聚合物,多官能单体(10-90重量%,优选30-70重量%,并且在转印温度下具有至少103泊的粘度)作为其主要成分,光敏剂 和热聚合抑制剂或可交联聚合物(每1000分子量具有至少1000个分子量和双键至少一个),单体(5-50重量%,优选10-40重量%),光敏剂和 热聚合抑制剂。
摘要:
A cellulosic ion-exchange fiber having a functional group represented by the formula, ##STR1## wherein n is 1 or 2 and M is a hydrogen atom, alkali metal or ammonium residue, is produced by dipping a cellulosic fiber in an aqueous solution containing an intermediate of the formula, ##STR2## wherein n and M are as defined above; and X is halogen, in the presence of an alkali and applying heat treatment, thereby introducing the above-mentioned functional group.