Abstract: Disclosed is a device configured to clamp a bar member (2) by inserting the bar member (2) through a through hole formed by bending a chain (1) including inner link plates (4) and outer link plates (3) connected via pins (5) so as to be freely bendable into a saw-tooth shape, fixing an end (A) of the chain 1 and clamping the bar member (2) by the pins (5) in a state of blocking the bar member (2) from being pulled out toward the other free end (B), the bar member (2) can be strongly clamped by forming the pins (5, 5 . . . ) in non-circular shape in cross section.

Abstract: A ring-shaped coupling comprising an inner ring, a rubber ring whose outer circumferential surface is divided by a circular groove into two conical surfaces each flaring toward the center in the axial directions and whose inner circumferential surface forming one solid surface is made to adhere by vulcanization to the outer circumferential surface of the inner ring, a pair of outer rings which are placed facing each other in the axial direction and a joining number. One of the inner circumferential surfaces of the outer rings having the shape of a conical surface flaring toward the other, and to the inner circumferential surfaces adhering by vulcanization the two conical sections of the outer circumferential surface of the rubber ring. The joining member puts the outer rings close to each other in the axial direction and fixes them in place in such a manner as to compress the rubber ring under the outer rings.

Abstract: A power control apparatus of a boiling water atomic reactor for transferring the atomic reactor to a low power stand-by operation when a load of a generator is rejected. The necessity of insertion of control rods into a core is decided in accordance with the state of the atomic reactor when a load rejection occurs. When the insertion of control rods is required selected control rods are inserted into the core and a core flow rate is reduced to transfer the atomic reactor to the low power stand-by operation. When the insertion of control rods is not necessary only the reduction of core flow rate is performed.

Abstract: Input logical data is sequentially divided by a data dividing circuit for each time slot into n data trains, of which each data block has an n time slot length. A clock signal which can be arbitrarily timed, is divided by a clock dividing circuit into a n clock signals which are displaced one time slot apart in phase and which occur with a period of n time slots. In a logical circuit, the divided clock signals are controlled by the divided data trains corresponding thereto, and the controlled clock signals are time multiplexed by a multiplexing circuit, whereby output data with which the input logical data has been timed by the clock signal is obtained.

Abstract: Reference logical data is spatially divided by a data dividing circuit for each time slot, and the divided data are converted into data, each having a continuous effective period. The divided and converted reference data and input logical data are compared by comparators to detect whether or not they are coincident with each other. A clock signal for determining the timing of comparison is also divided by a clock signal dividing circuit into n clock signals which are displaced one time slot apart in phase and occurring with a period of n time slots. By these divided clock signals those of the outputs from the comparators corresponding thereto are taken out from a comparison output circuit.