An electromagnetic disc brake for rotating machines having a rotating brake disc (9), which is mounted on the machine shaft (8) and is arranged between two brake discs (6,7) which cannot rotate. In this arrangement, the brake disc (6) forms the armature, moving in the axial direction, of an electromagnet (A). The brake disc (6) is pressed by springs (20) against the brake disc (9), which rotates w...

Apparatus for the visual indication of the level of liquid contained in boilers, tanks, reservoirs or the like is described, comprising an outer tube connected to the receptacle and having a float which contains a permanent magnetic dipole. Adjacent the tube is a column of rotatably mounted bi-colored cylinders, some of which show one color and the rest another when viewed from one direction, to i...

PURPOSE:To achieve the temperature compensation of electronic equipment readily and effectively, by making temperature sensitivity depend on the characteristics of a thermister. CONSTITUTION:The thermistor is included in a time constant resistor and oscillating frequency is varied by environmental temperature in a CR oscillating circuit 1. A circuit 2 measures the logarithm of the frequency of sai...

A row composed of reaction vessels is arranged on a turntable and one unit of sample dispenser mechanism as well as one photometer and a plurality units of reagent feeding mechanism are arranged near the turntable. After a sample is added to one specified reaction vessel, the turntable is rotated by 180 DEG or more and stopped so as to advance the reaction vessel containing said sample by half a ...

PURPOSE:To connect the end parts of two optical fibers, by fixing the butt parts of the optical fibers by utilizing the magnetic attraction of a pair of magnetic supporting members. CONSTITUTION:The cores 10, 10 of optical fibers 1a, 1b which are cut to have square end faces are inserted respectively into the detaining grooves 21 of a supporting member 2 formed of a magnetic metallic material or t...