Abstract: A first minute gap (18) is formed between the front end of a ventilation fan (16) and a first bracket (8) and a second minute gap (21) is formed between the front end of a partition member (19) and a second bracket (11); a first aperture (9a) is provided in a location at the inner periphery further inward than the vanes (16b) on the bearing bracket (9); a current of cooling air is formed by introduction of external air by the ventilation fan from this aperture; this current of cooling air is again discharged to the outside through a ventilation passage (8a) of the first bracket and a ventilation passage (1a) on the outer peripheral side of the stator core (1); in addition, a second aperture (11b) is provided in the second bracket (11), a current of cooling air is formed by introduction of external air by the ventilation fan from the second aperture (11b); and this current of cooling air is again discharged to the outside through the ventilation passage (3a) of the rotor core (3), the ventilation passage of th

Abstract: When data are to be recorded on a recording medium having imparted thereto a medium ID that is identification information unique to the recording medium, an additional ID related to the medium ID is generated on the basis of the medium ID. Then, the data are encrypted and recorded on the medium along with the additional ID. In reproduction, the medium ID and the additional ID attached to the data are read out from the medium, and then compared to determine whether both of the medium ID and additional ID meet a predetermined matching condition. When the additional ID attached to the data has been determined as meeting the predetermined matching condition, the data is judged to be reproducible data. In this manner, it is possible to promptly determined whether or not the data recorded on the medium are fairly-recorded data, which can effectively prevent unfair use of the data.

Abstract: A first minute gap (18) is formed between the front end of a ventilation fan (16) and a first bracket (8) and a second minute gap (21) is formed between the front end of a partition member (19) and a second bracket (11); a first aperture (9a) is provided in a location at the inner periphery further inward than the vanes (16b) on the bearing bracket (9); a current of cooling air is formed by introduction of external air by the ventilation fan from this aperture; this current of cooling air is again discharged to the outside through a ventilation passage (8a) of the first bracket and a ventilation passage (1a) on the outer peripheral side of the stator core (1); in addition, a second aperture (11b) is provided in the second bracket (11), a current of cooling air is formed by introduction of external air by the ventilation fan from the second aperture (11b); and this current of cooling air is again discharged to the outside through the ventilation passage (3a) of the rotor core (3), the ventilation passage of th

Abstract: A fully enclosed type motor with outer fans includes a ventilation fan. The fan has radially extending blades on a bracket side, and radially extending blades on a core side. Outside air is let into an air passage as cooling air from an opening formed in the bracket on an inner side of the blades. The cooling air is fed into a cooling hole formed in an outer peripheral part of a stator core and then discharged to the outside. Air within the motor body, which is fed from the blades, is passed through an external heat exchanger and returned to the inside of the motor body.

Abstract: A fully enclosed type motor with outer fans includes a ventilation fan. The fan has radially extending blades on a bracket side, and radially extending blades on a core side. Outside air is let into an air passage as cooling air from an opening formed in the bracket on an inner side of the blades. The cooling air is fed into a cooling hole formed in an outer peripheral part of a stator core and then discharged to the outside. Air within the motor body, which is fed from the blades, is passed through an external heat exchanger and returned to the inside of the motor body.

Abstract: When data are to be recorded on a recording medium having imparted thereto a medium ID that is identification information unique to the recording medium, an additional ID related to the medium ID is generated on the basis of the medium ID. Then, the data are encrypted and recorded on the medium along with the additional ID. In reproduction, the medium ID and the additional ID attached to the data are read out from the medium, and then compared to determine whether both of the medium ID and additional ID meet a predetermined matching condition. When the additional ID attached to the data has been determined as meeting the predetermined matching condition, the data is judged to be reproducible data. In this manner, it is possible to promptly determined whether or not the data recorded on the medium are fairly-recorded data, which can effectively prevent unfair use of the data.

Abstract: In order to play an automatic performance based on performance information which is stored in a storage device and the like in advance, an electronic musical instrument provides an automatic performance apparatus. The automatic performance apparatus is configured by a performance style designating portion, a storage portion, a read-out portion and an automatic performance portion. The performance style designating portion designates a desired performance style within a plurality of performance styles, each of which corresponds to a specific music genre such as rock music, jazz and pop music. The storage portion, such as a read-only memory, stores a plurality of chord progression patterns with respect to each of the performance styles. The read-out portion accesses the storage portion to automatically read out one of the chord progression patterns concerned with the desired performance style which is designated by the performance style designating portion.

Abstract: An electronic piano with a pedal, which can control various parameters by the pedal. The electronic piano has a mode switch for selecting a mode, and the electoronic piano switches parameters to be controlled by the pedal according to the selected mode by the mode switch. The pedal can provide not one but a variety of parameter control functions. Further, an electronic piano with first and second pedals, wherein a relationship between the up/down operation of the first pedal and an increase/decrease in parameter to be controlled is set to be opposite to a relationship between the up/down operation of the second pedal and the increase/decrease in parameter to be controlled.

Abstract: A musical tone control mechanism for an electronic musical instrument in which a musical tone adjustment rotary body having a rotating shaft extending along the longitudinal direction of a keyboard is provided, the rotary body is divided into a plurality of parts, and an operation position of the rotary body is movable along the longitudinal direction of the keyboard, or a means for selecting an adjustment function of the rotary body is arranged. The musical tone control mechanism further includes an operation amount detector for detecting an operation amount of the rotary body as a pivot amount of a pivot shaft body of the operation amount detector, cylindrical intermediate members fitted to both ends of the rotary body for connecting the pivot shaft body to the rotary body, and bearings having bearing holes for pivotally receiving the intermediate members.

Abstract: Plural normal pattern data, plural introduction pattern data, plural fill-in pattern data and plural ending pattern data for each of various accompaniment styles such as march, waltz and rock are stored in a memory. Relation of correspondence among these pattern data is predetermined and, at transfer from one pattern to another such as transfer from a certain introduction pattern to a normal pattern, transfer from a certain normal pattern to a fill-in pattern, transfer back from the fill-in pattern to the normal pattern or transfer from a certain normal pattern to an ending pattern, predetermined pattern data which corresponds to a pattern which has been so far performed is automatically determined and transfer to the determined pattern is automatically made. Transfer of the pattern which is automatically determined can also be changed as desired by selection by the player.

Abstract: A method for electromagnetically stirring molten steel in continuous casting wherein in producing cast slabs or blooms, an electromagnetic stirring force is applied to the unsolidified molten steel in the cast slab or bloom being drawn. An electromagnetic stirrer is installed between drawing positions where the unsolidified thickness is 45% and 15%, respectively, of the thickness as viewed in the direction of the thickness of the cast slab or bloom, and stirring in the casting direction is applied to the unsolidified molten steel in such a manner that the product of the magnetic flux density (gauss) at the interface between the unsolidified and solidified portions and the stirring time in minutes (which is defined as the ratio of the stirring effective length (mm) of the electromagnetic stirrer to the casting speed (m/min)) is 1,600 gauss-min or more per m.sup.3 of the total volume (m.sup.

Abstract: A slag-forming agent comprising an aggregate of particulate material having a maximum diameter of 3.0 millimeters and containing at least 15 weight percent magnesium oxide, the aggregate being coated with from 5 to 20 weight percent cement, and a process for producing the agent in which the particulate material is wetted with water to form the aggregate, the wet aggregate is coated with cement and the wet coated aggregate is solidified as such or after being molded.

Abstract: A probe for detecting wear of a refractory wall, including plural sheathed probe elements of different lengths each consisting of a pair of high melting point wires disposed in parallel and insulated from each other except at least the fore end portions of the wires which form a normally closed or normally open sensing point, a sheath enclosure accommodating the probe elements such that the sensing points of the respective probe elements are located at different positions along the length of the sheath enclosure and holding the probe elements in parallel relation and out of contact with each other, and a number of dummy elements formed of a material similar to the probe elements and connected to the fore ends thereof in a manner to complement the lengths of the shorter of the probe elements. There is also disclosed a detection circuit for monitoring wear of a refractory wall in a molten metal processing apparatus in a simple and accurate manner by the use of the probe.

Abstract: A blowing tuyere to be embedded in a bottom of side wall of a molten metal bath container for blowing a gas thereinto, the tuyere including a cylindrical core body fixedly located at the center of the tuyere and an outer tube fixed concentrically around the core body with a gap of a predetermined width to form an annular blowing passage therebetween.

Abstract: A method for converter blow end-point control which comprises carrying out waste gas analyses on a continuous or intermittent basis in a final stage of the blow and, based on decarburization rate data (waste gas information) obtained from said waste gas analysis, determining the end-point of the blow where the carbon content of the bath equals a target carbon content. The method is characterized by the use of the decarburization rate equation: ##EQU1## which is a differential equation taking account of the delay time (.tau.) of said waste gas information which is a period of time from the time-point of occurrence of a decarburization reaction in the converter till the time when it is detected as said decarburization rate data, and an equation:b'=g(b)which is a functional equation for increasing the predictability of carbon content of the bath at the end-point of the blow.

Abstract: A method for stably refining high carbon steel by top and bottom blown converter refining in which the entire quantity or part of refining pure oxygen is blown onto molten iron through a top blowing lance nozzle while blowing an inert gas into the converter through a nozzle at the bottom thereof, and wherein the bottom blown inert gas is fed at a rate less than 0.09 Nm.sup.3 /min.multidot.ton during the blowing and/or at a rate less than 0.03 Nm.sup.3 /min.multidot.ton in a controlling stage immediately after turndown.

Abstract: A discharging mechanism for molten metal and slag remaining in a tundish provided with at least one pouring nozzle for a continuous casting machine, which comprises: a discharging nozzle attached to the bottom wall of the tundish, the nozzle having a discharging bore flaring downwardly for discharging molten metal and slag remaining in the tundish; a frustoconical plug matching with the discharging bore of the discharging nozzle, releasably inserted from outside the bottom wall of the tundish into the discharging bore, a plug fitting being fixed to the lower end of the plug; and a plug engaging means connected with the plug fitting for inserting the plug into the discharging bore of the discharging nozzle, holding same therein and withdrawing same therefrom.

Abstract: An apparatus for preventing a steam explosion, in a water discharge channel of a secondary cooling zone of a horizontal type continuous casting machine, caused by molten metal breaking out from said cast strand, which comprises: a metal net provided substantially horizontally between said secondary cooling zone and said water discharge channel for granulating said molten metal breaking out from said cast strand; a water flashing mechanism provided over the entire width of said water discharge channel above said water discharge channel, said water flashing mechanism comprising a plurality of water injection ports ejecting water on said molten metal granulated through said metal net for rapidly cooling and solidifying said molten metal and washing away the resultant soldified granulated metal toward the downstream of said water discharge channel; a tank, provided at the downstream end of said water discharge channel for receiving the water and the granulated metal discharged from said water discharge channel an

Abstract: A desulfurizing composition which is fed together with nitrogen into a molten pig iron in a desulfurization. The desulfurizing composition comprises 0.3 to 10 wt.% of a carbon source for preventing secondary coagulation and 1 to 10 wt.% of a magnesium compound for inhibiting of calcium cyanamide and the main component of calcium carbide for the desulfurization.