公开(公告)号：US4487633A

公开(公告)日：1984-12-11

申请号：US507544

申请日：1983-06-24

申请人： Masaharu Sakuta ,  Soichi Kiya ,  Iwao Uchizaki ,  Yasuhiko Yoshioka ,  Koichi Ito ,  Toshio Saito ,  Tadahiro Kaya ,  Tsunetoshi Shioya ,  Yoshifumi Shimoyama

发明人： Masaharu Sakuta ,  Soichi Kiya ,  Iwao Uchizaki ,  Yasuhiko Yoshioka ,  Koichi Ito ,  Toshio Saito ,  Tadahiro Kaya ,  Tsunetoshi Shioya ,  Yoshifumi Shimoyama

IPC分类号： C04B24/26 ,  C04B28/02 ,  C04B7/35

CPC分类号： C04B24/26 ,  C04B28/02

摘要： A concrete composition is provided which has the property of being inseparable in water and no effect in delaying setting time or reducing strength. A polyacrylamide partial hydrolysate having a molecular weight of one million or higher and a hydrolysis degree of from 0.5 to 20% moles is present in an amount of 0.5 to 4% by weight based on the cement constituent proportion.

摘要翻译： 提供具有在水中不可分离的性质的混凝土组合物，并且不会延迟凝固时间或降低强度。 分子量为100万以上，水解度为0.5〜20摩尔％的聚丙烯酰胺部分水解物的含量相对于水泥成分的比例为0.5〜4重量％。

公开(公告)号：US4508572A

公开(公告)日：1985-04-02

申请号：US506971

申请日：1983-06-23

申请人： Masaharu Sakuta ,  Soichi Kiya ,  Iwao Uchizaki ,  Yasuhiko Yoshioka ,  Koichi Ito ,  Tadahiro Kaya ,  Tsunetoshi Shioya ,  Yoshifumi Shimoyama ,  Hiroyuki Yamakawa

发明人： Masaharu Sakuta ,  Soichi Kiya ,  Iwao Uchizaki ,  Yasuhiko Yoshioka ,  Koichi Ito ,  Tadahiro Kaya ,  Tsunetoshi Shioya ,  Yoshifumi Shimoyama ,  Hiroyuki Yamakawa

IPC分类号： C04B24/00 ,  C04B24/26 ,  C04B28/02 ,  C04B7/02

CPC分类号： C04B24/26 ,  C04B28/02

摘要： A cement composition is provided which has the property of being inseparable in water, having improved strength and no effect in delaying setting time or reducing strength. It is produced at a cheaper cost by reducing the amount of a polyacrylamide compound to a considerable great extent. The polyacrylamide compound is present in an amount of 0.1 to 3% by weight based on the weight of cement, when a dialdehyde is added thereto.

摘要翻译： 提供具有在水中不可分离的性质的水泥组合物，具有改善的强度并且在延迟凝固时间或降低强度方面没有影响。 通过在相当大程度上减少聚丙烯酰胺化合物的量，以更便宜的成本生产。 当加入二醛时，聚丙烯酰胺化合物的存在量为水泥重量的0.1〜3重量％。

公开(公告)号：US5121812A

公开(公告)日：1992-06-16

申请号：US583077

申请日：1990-09-14

申请人： Minoru Ochiai ,  Soichi Kiya ,  Mikio Takenoshita ,  Nobuyuki Kurosaki ,  Mitsuhiro Kishi

发明人： Minoru Ochiai ,  Soichi Kiya ,  Mikio Takenoshita ,  Nobuyuki Kurosaki ,  Mitsuhiro Kishi

IPC分类号： E04G1/34

CPC分类号： E04G1/34

摘要： A folding scaffold unit having first and second pairs of poles each positioned perpendicular to the floor and parallel with each other, each pair of parallel poles being connected by connecting rods, scaffold boards being fixed to horizontal shafts at one ends thereof, the horizontal shaft being inserted into each pair of parallel poles and parallel with the connecting rods, the other horizontal shafts parallel with the horizontal shafts and rotatably connecting the other ends of the scaffold boards, a driving gear mounted on one of the pair of parallel poles for vertically swingably moving the scaffold boards, and gears fixed to the other horizontal shafts and having tooth flank meshing with each other.

摘要翻译： 一种折叠式脚手架单元，具有第一和第二对极，它们各自垂直于地板定位并彼此平行，每对平行极通过连杆连接，脚手架板在其一端固定在水平轴上，水平轴为 插入到每对平行极中并与连接杆平行，其他水平轴与水平轴平行并可旋转地连接脚手架的另一端，驱动齿轮安装在一对平行杆之一上，用于垂直摆动地移动 脚手架板和齿轮固定在其他水平轴上并具有相互啮合的齿面。