公开(公告)号：US4147051A

公开(公告)日：1979-04-03

申请号：US809037

申请日：1977-06-22

申请人： John S. Griffiths ,  Roger N. Stone

发明人： John S. Griffiths ,  Roger N. Stone

IPC分类号： G01N9/30

CPC分类号： G01N9/30

摘要： A densimeter for measuring the density of liquids is disclosed. The densimeter comprises a substantially vertical shaft having a central axis. The densimeter further comprises means for rotating the shaft about its axis and a vessel mounted on the shaft asymmetrically with respect to the shaft axis. Counterbalancing means are provided on the shaft for at least partly compensating for the asymmetry. The shaft is resiliently mounted with freedom of oscillation transverse to the shaft axis. Means are provided for measuring the amplitude of the oscillations.

摘要翻译： 公开了一种用于测量液体密度的密度计。 密度计包括具有中心轴线的基本垂直的轴。 密度计还包括用于围绕其轴线旋转轴的装置和相对于轴线不对称地安装在轴上的容器。 平衡装置设置在轴上以至少部分地补偿不对称性。 轴以弹性方式安装，横向于轴线的摆动自由度。 提供了用于测量振荡幅度的装置。

公开(公告)号：US4594024A

公开(公告)日：1986-06-10

申请号：US598707

申请日：1984-04-10

申请人： Wolfgang R. Jenkner ,  Alan E. Christie ,  Emad E. M. Elsayed ,  John S. Griffiths ,  Guney A. Mentes

发明人： Wolfgang R. Jenkner ,  Alan E. Christie ,  Emad E. M. Elsayed ,  John S. Griffiths ,  Guney A. Mentes

IPC分类号： F25D1/02 ,  E02B5/08 ,  E02B9/04 ,  E03B3/04

CPC分类号： E02B9/04 ,  E03B3/04 ,  Y02E10/22

摘要： An offshore intake structure for a water cooling system having an intake shaft communicating with a lake or like reservoir comprises a well excavated in the bed of the lake having an opening communicating with the intake shaft. The well is covered by a submarine roof structure having a perforate outer region defining an inlet to the well and an imperforate inner region which extends over the intake shaft opening and radially outwards therefrom so as to define with the well bottom a horizontal flow passage extending inwards to the intake shaft. The construction is such as to permit an adequate intake flow while keeping the intake velocity below the limit at which fish would be entrained.

摘要翻译： 一种用于具有与湖泊或类似水库连通的进气轴的水冷系统的近海进气结构，包括在具有与进气轴连通的开口的湖床上开挖的井。 井被海底屋顶结构覆盖，该海底屋顶结构具有限定井的入口的穿孔外部区域以及在进气轴开口和径向向外延伸的无孔内部区域，以便与井底一起限定向内延伸的水平流动通道 到进气轴。 该结构允许足够的进气流量，同时保持进气速度低于鱼被夹带的极限。