Abstract: An automatic information receiving terminal device in a character/graphic information network system including a videotex communication network or a public communication network (telephone network) is connected to an information center through the videotex or public communication network so that various items of image information from the information center can be received by the terminal device. The terminal device having an internal clock and a time setting unit. The terminal device can automatically receive or reproduce desired information at an each time preset by the time setting means, so that the terminal device can automatically be operated without manual intervention so as to give emergency information or the like timely to a number of people.

Abstract: The present invention offers a retaining structure of a brush spring of an electric motor, whereby a brush spring is allowed to be mounted in a normal direction only, thus avoiding abrasion of a brush or unexpected halt of the electric motor.

Abstract: A helicopter rotor blade supported by a flexbeam to be rotatable about an axis of rotation, in which a pitching motion thereof is allowable, is provided with a device for changing the pitch and damping the lead-lag motion thereof. The device comprises a bushing in a through hole formed at the inboard end of the flexbeam, an elastomeric pivot loosely fitted in the bushing, elastomeric dampers of cylindrical shape mounted on the upper and lower surfaces of the flexbeam and coupled with the upper and lower ends of the elastomeric pivot by means of nuts, and torque arms extending through the bushing and the elastomeric dampers and having the central portion thereof connected to central shafts of the elastomeric pivots. Each of the torque arms has both ends outwardly projecting beyond the elastomeric dampers and secured to a pitch sleeve which encloses the flexbeam.

Abstract: A method of the production of immunoglobulin having a high content of monr from immunoglobulin-containing materials by a fractionation method, which comprises carrying out the fractionation in the presence of a water-soluble, basic nitrogen-containing organic compound having a dissociation constant (pKb) of 7 or less or an acid addition salt thereof, and thereby inhibiting by-production of undesirable aggregated molecules. The immunoglobulin has a high content of monomer and contains no or little aggregated molecules and hence can be used as a medicine in immune prophylaxis and immunotherapy without undesirable side effects and can be administered by intraveneous route, and further, is useful for the preparation of chemically treated immunoglobulin having a high content of monomer.