An optical scanning device is described which comprises a radiation source (6), an objective system (8) and a diffraction grating (9) which is arranged between the objective system and the radiation source to separate the radiation beam (b') reflected by the information surface (2) to be scanned from the beam (b) emitted by the radiation source and for introducing astigmatism in the reflected beam...

PURPOSE:To remove automatically ashes etc. which accumulate in a combustion chamber, in a combustion furnace of grains like chaffs etc. provided with a primary and a secondary combustion chambers by a method wherein a push-up screw conveyor is arranged in a compressed feed tube for grains and an ash remover is provided on said top. CONSTITUTION:When a hopper 14 is filled with grains like chaffs et...

PURPOSE:To specify the point of abnormality in a short time by deciding the abnormality of the light receiving side if the light shielding data is not supplied when the abnormality is detected. CONSTITUTION:A light shielding signal is supplied to a CPU 40 from the X or Y direction via a common line 41 for a light receiving element during the sequential scanning actions to the X and Y directions. T...

PURPOSE:To always obtain a certain tracking servo loop gain independently of recording and reproducing by increading the quantity of light from a light source at the time of recording and reducing it at the time of reproducing and making the gain of a servo circuit different between recording and reproducing. CONSTITUTION:An optical modulator is used for control of the quantity of light when a gas...

PURPOSE:To improve the mounting density and the reliability of a semiconductor device by composing it of a first semiconductor chip connected to a conductive pattern formed on one surface of an insulating substrate, a conductive pattern formed on the other surface of the substrate bonded on the first chip and a second semiconductor chip connected by wire bonding. CONSTITUTION:A first semiconductor...

The installation is provided with a dipping tank (1) and at least one rinsing device (8, 9, 10, 11) for the objects coming out of the dipping tank (1) associated with at least one tank (4, 5) for the recirculation liquid arising on rinsing. The installation is also provided with a tank (16) receiving the pure filtrate and with a device (13) for filtering liquid coating material originating from th...

Local heating of predetermined duration and with a treatment temperature between the plasticization temperature and the ignition temperature produces coloration in the periphery of the cheese or of the cheese product.

Local heating of predetermined duration and with a treatment temperature between the plasticization temperature and the ignition temperature produces coloration in the periphery of the cheese or of the cheese product.

PURPOSE:To carry out fusion works while end faces of multicore optical fibers are highly accurately set, by performing the fusion works in such a way that enlarged images of the leading edge sections of the optical fibers arranged on a V-grooved table are produced optically and variation of the cut length of each optical fiber is checked through the output signal of a line sensor. CONSTITUTION:Enl...

A plastic inserter comprises movable and stationary jaws openably and closably connected together by means of a thin hinge, a space formed between the movable and stationary jaws along the hinge so that a flexible hollow tube is allowed to pass therethrough, a handle plate including an elastic supporting piece integrally formed with a part of the stationary jaw, and handle piece integrally formed ...

A method for the removal of, for in vitro immunisation, undesired cells from human lymphocyte containing cell populations. For the method, use is made of lysosomotropic agents which are caused to act in vitro on human lymphocyte containing cell populations. Also disclosed is a method in the in vitro immunisation of lymphocytes for use in the production of human monoclonal antibodies. In this metho...

A method for the removal of, for in vitro immunisation, undesired cells from human lymphocyte containing cell populations. For the method, use is made of lysosomotropic agents which are caused to act in vitro on human lymphocyte containing cell populations. Also disclosed is a method in the in vitro immunisation of lymphocytes for use in the production of human monoclonal antibodies. In this metho...

The invention provides a cabinet (1) for electronic apparatus to prevent the emission of electro-magnetic signals from the apparatus. The cabinet (1) is of a cementitious composition and comprises a base and top member (2) and (3), side walls (4) and front and rear walls (5) and (6). A screen (31) of clear perspex is provided in the front wall (5). A polymer is added to the cementitious compositio...

PURPOSE:To enable to work with a small sized machine even the working area becomes larger or even in case of the body to be worked of high working threshold value by providing the shaping means to shape a laser beam in the prescribed energy on the laser beam transmission path. CONSTITUTION:The laser beam 10 radiated from a pulse laser 1 is shaped in the rectangular shape in the prescribed energy d...

A valve attachment flange comprising the lading outlet for a railway tank car is placed in an insulative space between a heat element, heated fluid medium carrying heat ducts and the bottom of the car. The outlet is surrounded by a heat chamber in fluid flow communication with the heat ducts of the heat elements whereby the heat chamber surrounding the outlet is efficiently heated simultaneous wit...

PURPOSE:To simplify the supporting method of a motor mounting frame by a method wherein the motor mounting frame is housed within a main body casing, on which electrical parts such as a motor and the like is mounted, by being pinched with spiral casings in a combined suction-exhaust ventilating fan, which ventilates with suction flow and with exhaust flow at the same time. CONSTITUTION:Firstly, a ...