Lens retaining barrel
    55.
    发明授权
    Lens retaining barrel 失效
    镜头挡圈

    公开(公告)号:US5493452A

    公开(公告)日:1996-02-20

    申请号:US189292

    申请日:1994-01-31

    CPC classification number: G02B7/025

    Abstract: A lens retaining barrel includes a cylindrical part for radially positioning a lens and an abutment for positioning the lens in the direction of the optical axis of the lens. The cylindrical part has a multiplicity of protrusions uniformly and circumferentially spaced around the interior thereof such that a circle inscribed within the protrusions has the same diameter as the outer diameter of the lens and has its center coincident with the optical axis of the lens. The abutment extends radially inwardly a greater extent than the protrusions and has a multiplicity of seats uniformly and circumferentially spaced around the abutment for receiving the lens. The seats have tops defining an envelope extending in a direction orthogonal to the optical axis of the lens. The lens is retained in position by each protrusion of the cylindrical part and each top of the seats and is adhered to the lens retaining barrel by an adhesive. By virtue of this construction, the lens retaining barrel is free from any eccentricity or tilt of the lens, has a higher mounting accuracy, and is easy to assemble for mounting.

    Abstract translation: 透镜保持筒包括用于径向定位透镜的圆柱形部分和用于将透镜定位在透镜的光轴方向上的支座。 圆柱形部分具有多个突起,其均匀且围绕其内部周向间隔开,使得内接在突起内的圆与透镜的外径具有相同的直径,并且其中心与透镜的光轴重合。 邻接部比径向向内延伸更大的程度,并且具有多个座位,并且围绕邻接件周向间隔开以容纳透镜。 座椅具有限定在与透镜的光轴正交的方向上延伸的包络的顶部。 透镜由圆柱形部分的每个突起和座的每个顶部保持在适当位置,并通过粘合剂粘附到镜片保持筒上。 凭借这种结构,透镜保持筒没有透镜的任何偏心或倾斜,具有更高的安装精度,并且易于组装用于安装。

    Process for producing magnesium salt of olefin sulfonic acid
    57.
    发明授权
    Process for producing magnesium salt of olefin sulfonic acid 失效
    烯烃磺酸镁盐的制备方法

    公开(公告)号:US4238410A

    公开(公告)日:1980-12-09

    申请号:US905001

    申请日:1978-05-11

    CPC classification number: C07C309/00

    Abstract: Disclosed is a process for producing the magnesium salt of an olefin sulfonic acid comprising the steps of:sulfonating and neutralizing an olefin having 10 to 20 carbon atoms, and; then,hydrolyzing sultone contained in the resulting neutralization product in the presence of,(a) magnesium hydroxide, magnesium oxide and a mixture thereof and(b) an additive selected from the group consisting of benzoic acid, citric acid, malic acid, phosphoric acid, polyphosphoric acid and water-soluble salts thereof,at a temperature within the range of from 110.degree. C. to 180.degree. C.

    Abstract translation: 公开了一种制备烯烃磺酸镁盐的方法,包括以下步骤:磺化和中和具有10-20个碳原子的烯烃,和 然后,在(a)氢氧化镁,氧化镁及其混合物存在下水解所得中和产物中所含的磺内酯,和(b)选自苯甲酸,柠檬酸,苹果酸,磷酸的添加剂 ,多磷酸及其水溶性盐,温度范围为110〜180℃。

    Surface active agent for emulsion fuel
    58.
    发明授权
    Surface active agent for emulsion fuel 失效
    用于乳化燃料的表面活性剂

    公开(公告)号:US4182614A

    公开(公告)日:1980-01-08

    申请号:US912924

    申请日:1978-06-05

    CPC classification number: C10L1/328

    Abstract: Emulsion fuels can be effectively emulsified with a very small amount of a compound of the formula: ##STR1## wherein at least 1.25 on the average of the 3 X's stand for an acyl group having 10 to 18 carbon atoms, the remainder being a hydrogen atom, and the sum of numbers n1, n2 and n3 is in the range of from 2 to 50.

    Abstract translation: 乳液燃料可以用非常少量下式的化合物有效地乳化:其中至少1.25个平均3个X代表具有10至18个碳原子的酰基,其余的是氢原子 ,数n1,n2,n3的和为2〜50。

    Process of manufacturing high-concentration olefin sulfonate solution
    59.
    发明授权
    Process of manufacturing high-concentration olefin sulfonate solution 失效
    制备高浓度烯烃磺酸盐溶液的方法

    公开(公告)号:US4139498A

    公开(公告)日:1979-02-13

    申请号:US751164

    申请日:1976-12-16

    CPC classification number: C07C309/00

    Abstract: A process of manufacturing C.sub.10 -C.sub.20 .alpha.-olefin sulfonate solution of high concentration, which comprises subjecting .alpha.-olefin sulfonates having 10-20 carbon atoms to neutralization and hydrolysis in the presence of (a) an alkaline material equivalent to the sum (A+B) of an amount of alkali (A) necessary for performing neutralization and hydrolysis of said sulfonates stoichiometrically and an amount of alkali (B) equivalent to 0.2-1.5 times as much as said amount of alkali (A) by weight, (b) an alkylene oxide derivative and/or a polyvinyl alcohol equivalent to 0.2-2 times as much as said amount of alkali (B) by weight, and (c) water necessary for making the water content of the neutralization-hydrolysis product less than 50%.

    Abstract translation: 一种制备高浓度的C 10 -C 20α-烯烃磺酸盐溶液的方法,其包括在(a)碱金属物质(A +)的存在下,使具有10-20个碳原子的α-烯烃磺酸盐进行中和和水解, (B)相当于所述碱(A)的重量比的0.2-1.5倍,碱的量(B)为碱金属(A)的量, 氧化烯衍生物和/或聚乙烯醇等于所述碱(B)的重量比的0.2-2倍,和(c)使中和水解产物的水含量小于50%所需的水, 。

    Method of producing beta-lactose
    60.
    发明授权
    Method of producing beta-lactose 失效
    生产β-乳糖的方法

    公开(公告)号:US4083733A

    公开(公告)日:1978-04-11

    申请号:US744922

    申请日:1976-11-26

    CPC classification number: C13K5/00 A61K9/2018

    Abstract: To alpha-lactose or an alpha-lactose-containing substance is added a small amount of water and the resulting mixture is subjected to extrusion from a screw extruder under pressure, thereby converting the alpha-lactose into beta-lactose. The beta-lactose or beta-lactose-containing substance thus obtained is dried, pulverized and stored as it is.

    Abstract translation: 向α-乳糖或含有α-乳糖的物质中加入少量水,并将所得混合物在压力下从螺杆挤出机中挤出,从而将α-乳糖转化为β-乳糖。 将由此获得的β-乳糖或含β-乳糖的物质干燥,粉碎并储存。

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