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51. 发明专利

JPS578304A MECHANISM FOR OPENING AND CLOSING STEAM REGULATING VALVE 失效
公开(公告)号：JPS578304A
公开(公告)日：1982-01-16
申请号：JP8018880
申请日：1980-06-16
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： HIRANO HAJIME , ARAKI TSUTOMU , MATSUO NAOKI
IPC分类号： F01D17/20
摘要： PURPOSE:To cause the load carrying portions of connecting rods to always receive the halves of the reaction of a steam regulating valve, by coupling the left-hand ends of upper levers for the regulating valve to servomotors through the connecting rods and a T-shaped block provided with a universal joint. CONSTITUTION:The cross sections of the left-hand ends of upper levers 29a, 29b for a stream regulating valve 22 are made oblong. The left-hand ends of the levers 29a,29b are fitted in recesses provided on a T-shaped block 43 so that load is carried by the shoulders of recessed portions of the block 43. The T-shaped block 43 contains a horizontal pin 40 whose central part is fitted with a universal joint 38. Two connecting rods 32a, 32b are coupled to each other by the pin 40 so that load carrying lines are united as a whole. The pin 40 is coupled to the levers 29a, 29b through the universal joint 38 in the block 43 so that the load carrying lines are divided again from each other. According to this constitution, the load carrying portions of the connecting rods 32a, 32b always receive the halves of the reaction of the regulating valve 22 when it is opened.

52. 发明专利

JPS56151384A TORUS TYPE NUCLEAR FUSION DEVICE 失效
公开(公告)号：JPS56151384A
公开(公告)日：1981-11-24
申请号：JP5422480
申请日：1980-04-25
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： TAKIZAWA TERUHIRO , SHIZUOKA YOSHIHIDE
IPC分类号： G21B1/11 , G21B1/00 , H05H1/12

53. 发明专利

JPS56148099A METHOD OF REDUCING RA-DIOACTIVITY OF BWR TYPE REACTOR 失效
公开(公告)号：JPS56148099A
公开(公告)日：1981-11-17
申请号：JP5166480
申请日：1980-04-21
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： ARIMA SHIYOUICHI , SUEMATSU SHIGERU , TSUCHIYA TOYOHIKO
IPC分类号： G21C15/28 , G21C19/30 , G21C19/307 , G21D1/00

54. 发明专利

JPS5677712A POSITION DETECTOR 失效
公开(公告)号：JPS5677712A
公开(公告)日：1981-06-26
申请号：JP15441779
申请日：1979-11-30
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： NAKASHIMA MASAO , HIGUCHI SHINICHI
IPC分类号： G01D5/245 , G01B21/00 , G01D5/12 , G01D5/20 , G01D5/244
摘要： PURPOSE:To perform a high-reliability detection of position even in the atmosphere of a high temperature and high humidity and then reduce the number of the detection signal lines, by generating the prescribed plural signals according to the movement of the subject to be measured and then deciding the directivity of these signals for counting. CONSTITUTION:Three different types of signals arranged regularly and having the mutual discrimination property are generated from the detection part 1 and according to the movement of the measurement subject such as the rack. These signals are then converted into the voltage to be processed easily through the signal converters 2 and 3 to be supplied to the direction decider 4. The decider 4 delivers the pulse signals when the subject moves forward and backward. The signals of the forward and backward directions are counted by the adder/subtractor 7 to obtain the difference between both signals, and thus the count value with directivity added is delivered. This output count value is multiplied by the multiplier 8 by the unit extent of the movement of the subject to be measured corresponding to one of the count value, thus obtaining the total extent of the movement. As a result, the position of the subject can be detected.

55. 发明专利

JPS5649953A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS5649953A
公开(公告)日：1981-05-06
申请号：JP12537979
申请日：1979-10-01
申请人： HITACHI LTD , HITACHI SERVICE ENG , HITACHI ENG CO LTD
发明人： NARUSE AKISUKE , HIGASHIKUJIYOU TAKAYUKI , HOSONO TATSUKUMA , KURIHARA KENICHI
IPC分类号： G01N29/04 , G01N29/26
摘要： PURPOSE:To enlarge the range of application of flaw detection to the welded part of piping without necessity of skill in inspection by a constitution wherein scanning of a probe is operated manually and the scanned position can be measured antomatically. CONSTITUTION:When a probe holder 9 is operated manually corresponding to a scanned position for flaw detection, a guide arm 6 is rolled out freely from an arm roll-up device 10. And, a rotary encoder 11 for detecting length detects the quantity of the length thereof and measures the position of a probe automatically. Meanwhile, the arm 6 conducting the scanning for flaw detection in the direction of circumference, while moving in the direction of length, turns in that direction together with a driving device 4'. The angle of its turn is detected by a potentiometer 17 for detecting angle retained by a support block 16 fitted to a truck 15. Moreover, the position of the driving device 4' on a rail 3 is detected and calculated by a rotary encoder 19. Since the scanned position on a complex curved pipe is detected automatically in this way, the range of application of the flaw detection can be enlarged without necessity of the higher skill in inspection.

56. 发明专利

JPS55103408A AUTOMATIC LEVEL MEASURING DEVICE USING LIQUID 失效
公开(公告)号：JPS55103408A
公开(公告)日：1980-08-07
申请号：JP1040979
申请日：1979-02-02
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： HIRATSUKA YOSHIAKI , KANOU YOSHIJI , YAMAGUCHI SHIYUUHEI , ADACHI KEISUKE
IPC分类号： G01F23/292 , G01C5/04 , G01F23/28
摘要： PURPOSE:To perform the level measurement based on the position of the photo detector which received and delivered the light, by forming the light passing part of the liquid tank storing the liquid and reflecting the light sent from the light source of one side on the liquid surface to receive the reflected light at the photo detector. CONSTITUTION:Liquid tank 23 is fixed to base 22, and the light of light source 26 is reflected on the liquid surface through windows 24 and 27 and then caught by photo array 29. The two liquid tanks 23 are linked together via linking tube 30, and the liquid surface is always kept at the same level between those two tanks. Cover 32 is put to tank 23 to cut off the light, and photo array 29 is connected to the counter circuit via output line 33. Now the full reflection is given to the light from source 26 on liquid surface L1 to find out the photo diode at the heighest position where the reflected light reached array 29 enters. As a result, the liquid level can be detected.

57. 发明专利

JPS54130708A STEAM TURBINE 失效
公开(公告)号：JPS54130708A
公开(公告)日：1979-10-11
申请号：JP3659678
申请日：1978-03-31
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： HIRATSUKA YOSHIAKI , ADACHI KEISUKE , YAMAGUCHI SHIYUUHEI , OOHARA TAKASHI
IPC分类号： F01D25/00
摘要： PURPOSE:To judge the presence or absence of the abnormality of the voids among disc wheels without overhauling a turbine casing, by mounting a monitor hole communicated with a void between a diaphragm and a moving vane of a rotor to the turbine casing. CONSTITUTION:Wheels 6 are installed in the axial direction of a rotor 5 at suitable intervals, and moving vanes 8, which nose portions are provided with shroud rings 7, are studded to the wheels 6. Meanwhile, stator blades 9 are mounted in prodjecting shapes among neighbouring moving vanes 8, 8 from a casing 3. A monitor hole 10 is installed in the tangential direction of an outer circumferencial portion of the moving vane 8 at the end stage location of the moving vanes 8 of the casing 3, and blocked by means of a cap, etc. Thus, voids among disc wheels can easily be checked at fields, and accidents can beforehand be prevented.

58. 发明专利

JPS52114897A COLD TRAP DEVICE 失效
公开(公告)号：JPS52114897A
公开(公告)日：1977-09-27
申请号：JP3126276
申请日：1976-03-24
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： AMADA TATSUO , KONDOU RIYOUICHI , FUNAFU MASAICHIROU
IPC分类号： C22B26/10 , C22B9/00 , G21C19/30 , G21C19/313 , G21D1/02
摘要： PURPOSE:A cold trap device without any heat shield necessity but with improved impurity collecting efficiency and easy operating management.

59. 发明专利

JPH01242335A METHOD AND DEVICE FOR SEPARATION, SORTING AND TRANSPORT OF STACKED PAPER 失效
公开(公告)号：JPH01242335A
公开(公告)日：1989-09-27
申请号：JP6609588
申请日：1988-03-18
申请人： HITACHI SERVICE ENG
发明人： UCHIDA SHINOBU , IMAI HIROTO , HARADA EIICHIRO , ISOBE TETSUYUKI
IPC分类号： B41J13/00 , B65H3/06 , B65H3/24 , B65H3/32 , B65H29/62
摘要： PURPOSE:To automate handling of stacked sheets to be transported and rationalize works by furnishing a locating mechanism to move an eccentric cam and a sorted transport mechanism to target positions. CONSTITUTION:A rotatable eccentric cam 34 is located in mating with a guard sheet 2 as the target and rotated in specified direction for a certain angle so as to come in rotational contact with the protrusion of the guard sheet 2 protruding from a stack of sheets 1, which are locally heaved by the rotational friction force through the guard sheet 2 and separated. A gap enlarging mechanism 34b is inserted into this generated gap, and those of stacked sheets situated above the guard sheet 2 are separated from the others. A sortedly transporting mechanism 50 is inserted between separated stacked sheets, and upon sorting of stacked sheets 1, the sorted stacked sheets 1 are transported as they are to the intended position through the sortedly transporting mechanism 50. After separation and sorting, used guard sheet 2 is attracted and removed forcedly by a removing machine 34c having suction function to be collected to a specified place 60.

60. 发明专利

JPH01235326A PLASMA TREATMENT APPARATUS 失效
公开(公告)号：JPH01235326A
公开(公告)日：1989-09-20
申请号：JP6042488
申请日：1988-03-16
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： SUZUKI KAZUO , SONOBE TADASHI , SAITO KEIJI
IPC分类号： H01L21/302 , H01L21/205 , H01L21/3065 , H01L21/31
摘要： PURPOSE:To execute a uniform plasma treatment by a method wherein two or more blowoff angles with reference to the surface of a material gas and a discharge gas are set and the blowoff angles are selected and adjusted from the outside in accordance with a kind of the gas to be used and with a size of a samples to be treated. CONSTITUTION:Microwaves 4 are introduced, through a waveguide 3, into a discharge tube 2 which is equipped with a field coil 1 at the outside; a gas 5 for plasma use which has been introduced into the discharge tube 2 is ionized by electron cyclotron resonance; a plasma is generated. The plasma is pushed out by a gradient of a magnetic field generated at the field coil 1 in the direction of a sample chamber 8; sample gases 9a-9c which have been introduced to the front of a sample 6 are excited or ionized by a plasma stream and transferred to the surface of the sample 6 as an active species; a thin film of a composition decided by the gas 5 for plasma use and by the material gases 9a-9c is formed on the surface of the sample 6. When blowoff angles are different for the individual material gases 9a-9c and a ratio of flow rates of them is selected appropriately, a film whose film formation speed and film quality are uniform can be formed on the surface of the specimen.

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