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    • 2. 发明公开
    • LEARNING DEVICE
    • LERNVORRICHTUNG
    • EP3163553A1
    • 2017-05-03
    • EP16151530
    • 2016-01-15
    • COOPER MARY E
    • COOPER MARY E
    • G09B19/02G09B1/08
    • G09B1/08G09B19/02
    • An interesting and easy to use hand held device for use in counting and solving arithmetic calculations, such as addition, subtraction, multiplication and simple division, and that in different ways. The device comprises three concentric disks with diameter of each disk descending from bottom to top disk; a pair of arms similar to clock hands at top of the disks and the three concentric disks with the pair of arms at top is rotatably coupled through the center of disks using a fastener. The top visible surface of each disk is divided into equal number of section and each section has a numerical figure, the middle disc's top surface also has small projections and number of projections in each section of middle disk is equal to the numerical figure of the section. Calculation could be performed by counting dots in association with printed numerals in the sections.
    • 一种有趣且易于使用的手持式设备,用于计算和求解算术计算,如加法,减法,乘法和简单除法,以不同的方式。 该装置包括三个同心盘,每个盘的直径从底部到顶部盘下降; 一对类似于在钟盘顶部的钟针的臂,并且三个同心圆盘与顶部的一对臂通过紧固件通过盘的中心可旋转地耦合。 每个圆盘的顶部可见表面被分成相同数量的部分,每个部分都有一个数字图,中间圆盘的顶部表面也有小的凸出部分,中间圆盘的每个部分的凸出部分的数量等于该部分的数字图形 。 计算可以通过计算与部分中的印刷数字相关的点进行。
    • 8. 发明公开
    • Magnetic display sheet
    • 磁性显示板
    • EP1081671A3
    • 2001-07-18
    • EP00307546.2
    • 2000-09-01
    • Toda Kogyo Corporation
    • Yamamoto, Kazumi
    • G09B29/00G09B1/08H01F1/117H01F1/057H01F1/055
    • G09B29/002B41M5/41B41M5/504B41M5/506B41M5/508B41M5/52H01F1/0027H01F1/0558H01F1/0578H01F1/059H01F1/117Y10T428/25Y10T428/257Y10T428/31855
    • A magnetic display sheet of the present invention comprises: a magnet sheet having a magnetized surface, and a non-magnetized surface, which magnet sheet comprises: 400 to 1,900 parts by weight of at least one kind of magnetic particles selected from the group consisting of magnetoplumbite-structure ferrite particles and rare-earth magnet particles, as a filler, and 100 parts by weight of a binder comprising 50 to 95% by weight of at least one thermoplastic elastomer selected from the group consisting of a styrene-isoprene-styrene block copolymer resin, a styrene-ethylene.butylene-styrene block copolymer resin and an ethylene-propylene copolymer rubber, and 5 to 50% by weight of at least one soft polyolefin selected from the group consisting of a propylene homopolymer and a propylene-ethylene copolymer; and a printing paper sheet for being printed on, said paper sheet being bonded to said non-magnetized surface of said magnet sheet. Such a magnetic display sheet is excellent in flexibility, mechanical properties, storage stability and product stability.
    • 本发明的磁性显示板包括:具有磁化表面和非磁化表面的磁片,该磁片包括:400至1 900重量份的至少一种选自以下的磁性颗粒: 磁铅石结构铁氧体颗粒和稀土磁体颗粒作为填料,和100重量份的粘合剂,该粘合剂包含50-95重量%的至少一种选自苯乙烯 - 异戊二烯 - 苯乙烯嵌段 共聚物树脂,苯乙烯 - 乙烯 - 丁烯 - 苯乙烯嵌段共聚物树脂和乙烯 - 丙烯共聚物橡胶,以及5至50重量%的选自丙烯均聚物和丙烯 - 乙烯共聚物中的至少一种软聚烯烃 ; 以及用于印刷的印刷纸张,所述纸张粘结到所述磁片的所述非磁化表面。 这种磁性显示板具有优异的柔韧性,机械性能,储存稳定性和产品稳定性。