A ship's rudder has a main rudder body with a cross-sectional shape that is streamlined and symmetrical relative to the vertical center plane of the rudder. A pair of fins extend horizontally from opposite vertical surfaces of the rudder body, symmetrically arranged relative to the center plane of the rudder. The chord length of each fin decreases from a root of the fin toward the tip of the fin. The leading edges of the fins coincide at the center plane of the main rudder body, and are located ...

The present invention relates to the production of nucleoproteins, more especially DNA, and their use in therapeutic compositions suitable for the treatment of neoplasms, pathological conditions, infections, osteoarticular disorders and the like, which comprise said nucleoproteins as active agent. Similarly, the invention comprises compositions which protect against the harmful effects of radiation and poisons in general, which also comprise said nucleoproteins as active agent. Finally, the pres...

An apparatus for producing sloping roof insulation panels and more particularly, roof insulation panels made of glass fiber material covered by a base cap layer. Such apparatus includes a circular saw capable of producing a groove in at least one of the side surfaces of the panel and a band saw for cutting the panel into a first portion including at least part of the top surface of the panel and a second portion including at least a part of the bottom surface of the panel. The band saw is locate...

In modern digital telecommunications switching networks the switch block may be a duplicated plane time-space-time arrangement in which each time switch stage and each space switch stage is controlled by control stores. Each control store is cross-office slot ordered and is arranged to be loaded by the central control with the identity of the connection required for the relevant cross-office slot. At each busy cross-office slot in a time switch control store a 12 bit address word is retrieved. T...

Injection of a functional liquid into a display device cell having an inlet opening and a relatively narrow space between front and back substrates. The liquid is a liquid crystal for a liquid crystal display device or an electrolyte solution for an electrochromic device. The cell is placed in a chamber such that the inlet opening is in an uppermost section of the cell. Also a vessel containing the liquid is placed in the chamber, and vacuum is created in the chamber. In that state the inlet ope...

An apparatus for taking out bundled bills includes an elevator arranged in front of the containing boxes for containing the bundled bills, a sliding block arranged between the elevator and the containing boxes and driven up and down by a belt, a discharging block mounted on a swing shaft which is swingably mounted on the sliding block, a discharging block regulating roller for regulating the rotation of the swing block in contact with the elevator, and, having a supporting block for receiving th...

A method of cold welding of workpieces formed as axially symmetric bodies of rotation, wherein the workpieces are pressed into each other by applying an axial stress to at least one of the workpieces, and the workpieces are imparted a relative turn in a plane perpendicular to the direction of the axial stress.

The lubricating oil filter of the invention comprises an outer casing which houses a filter element through which the oil passes, a pressure relief valve which prevents the oil passing through said filter element in the case of excessive pressure drop, and mutually facing metal plates separated by the filter element and arranged to form a capacitor, of which the filter element forms the dielectric, one of the plates being connected to the vehicle earth and the other being connected to an electri...

Method and apparatus for truck loading using a conveyor to advance a load into a truck backed-up to a loading dock. A special sheet or belt is laid over the bed of the truck and anchored at the edge adjacent the rear end of the truck bed. The sheet has special frictional characteristics. The load is pushed into the truck over the special sheet, the load in the truck is held in position and the special sheet is freed of the anchors and is slipped out from between the load and the truck bed.

An offshore platform structure of reinforced concrete for standing on the bottom of a sea as a consequence of its own weight. The structure includes a base supporting a tower for a platform deck. The lower part of the tower includes a cylindrical portion extending downwardly towards and through the base and providing a skirt. A frusto-conical annular wall extends coaxially with the tower between the tower and the top of the base to provide an annular chamber with a triangular cross section. Also...