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    • 2. 发明授权
    • Compact zoom lens system
    • 小型变焦镜头系统
    • US5325235A
    • 1994-06-28
    • US835354
    • 1992-02-14
    • Masaru TakashimaTatsuru Kanamori
    • Masaru TakashimaTatsuru Kanamori
    • G02B13/18G02B15/163G02B15/20G02B15/14
    • G02B15/163
    • The present invention relates to a compact zoom lens system having a long back focus and a zoom ratio of about 1.7, which comprises a first lens unit G1 having a positive focal length, a second lens unit G2 having a positive focal length and a third lens unit G3 having a negative focal length, said first, second and third lens units G1, G2 and G3 being all movable toward the object side during zooming from the wide angle to telephoto side such that the first and second lens units G1 and G2 are spaced away from each other, while the second and third lens units G2 and G3 are moved toward each other, and is characterized by conforming to the following conditional formula:0.34
    • 本发明涉及具有大约1.7的长后焦距和变焦倍数的紧凑型变焦透镜系统,其包括具有正焦距的第一透镜单元G1,具有正焦距的第二透镜单元G2和第三透镜 具有负焦距的单元G3,在从广角向望远侧变焦期间,所述第一,第二和第三透镜单元G1,G2和G3都可以朝向物体侧移动,使得第一和第二透镜单元G1和G2间隔开 而第二和第三透镜单元G2和G3彼此移动,并且其特征在于符合以下条件公式:0.34
    • 3. 发明授权
    • Method of gunning basic gunning refractories
    • 喷涂基本喷涂耐火材料的方法
    • US4461789A
    • 1984-07-24
    • US479945
    • 1983-03-29
    • Masaru Takashima
    • Masaru Takashima
    • B22D41/02C04B35/66C23C26/00F27D1/16B05D1/02
    • C04B35/6303B22D41/02C04B35/66C04B35/80C23C26/00F27D1/1642C04B2111/00155
    • A method of gunning a basic gunning refractory onto a hot or cold surface to provide a gunned coating or filling, by a nozzle mixing method, the gunning refractory containing a basic refractory as aggregate, not more than 5% by weight of at least one of organic fibrous materials and inorganic fibrous materials, and as a binder, at least one of phosphates and silicates, characterized in that the gunning refractory is fed to the nozzle under air pressure in the range of 1-10 Kg/cm.sup.2, the gunning refractory is then discharged while being mixed at the nozzle with 5-25% by weight of water under pressure in the range of 0.5-5 Kg/cm.sup.2 and while a rotary motion is imparted thereto, the gunning is commenced by first discharging air and water simultaneously and then the gunning refractory, and the distance between the nozzle discharge end and the surface is in the range of 0.15 to 1.00 m while the spray width is less than 1.00 m.
    • 将基本喷枪耐火材料喷涂到热或冷表面上以通过喷嘴混合方法将含有碱性耐火材料的喷枪耐火材料作为聚集体的不超过5重量%的至少一个 有机纤维材料和无机纤维​​材料,以及作为粘合剂的磷酸盐和硅酸盐中的至少一种,其特征在于,在1-10kg / cm 2的空气压力下将喷枪耐火材料供给到喷嘴中,喷射耐火材料 然后在0.5-5Kg / cm 2的压力下以5-25重量%的水在喷嘴处混合,同时在施加旋转运动的同时喷射,同时首先排出空气和水,开始喷射 然后喷涂耐火材料,并且喷嘴排出端与表面之间的距离在0.15至1.00μm的范围内,而喷雾宽度小于1.00μm。
    • 10. 发明授权
    • Powdery composition for heat retention of feeder head
    • 喂料头保温粉末组成
    • US3953219A
    • 1976-04-27
    • US507717
    • 1974-09-20
    • Masaru Takashima
    • Masaru Takashima
    • B22D27/06C09K5/16B28B7/36
    • B22D27/06C09K5/16
    • A powdery composition for heat retention of feeder head comprising carbonized plant (i.e., baked vegetable material) containing a large amount of fibrous matter and at least one substance selected from refractory material, easily oxidizable metal, metal oxide and inorganic material effective for heat retention of feeder head, each of said substances having a particle size distribution of less than 50% in parts by weight of 48 to 200 mesh particles with the remainder being particles larger than 48 mesh and smaller than 200 mesh and the amount of said substance having a particle size of larger than 48 mesh being approximately equal to that of said substance having a particle size of smaller than 200 mesh.
    • 包含含有大量纤维物质的碳化植物(即烘烤植物材料)和至少一种选自耐火材料,容易氧化的金属,金属氧化物和有机保温的无机材料的进料头的粉末组合物 每个所述物质具有小于50重量%的48至200目颗粒的颗粒尺寸分布,其余为大于48目和小于200目的颗粒,并且所述物质的量具有颗粒 大于48目的尺寸大约等于具有小于200目粒度的所述物质的尺寸。