baber/WOPTO huggingface dataset:
Patent KR-850000883-B1 (KR)
Title: Process for preparing trisubstituted imidazole derivatives
Inventor: SALLMANN ALFRED
IPC: C07D233/20
Filed: 1981-07-25
Granted: 1985-06-26
Abstract: The title compds. (I; R1, R2 = phenyl, substituted phenyl(substitute is halogen, hydroxy, lower alkyl or lower alkoxy), pyridyl or 1- oxido-pyridyl; A = lower alkylene, lower alkylidene, lower alkenylidene or cycloalkylidene; R3 = carboxy, lower alkoxycarbonyl, lower alkanoyloxy-substd. lower alkoxycarbonyl or carbamoyl; Z1 = halogen; Z2 = ammonium carboxylate; with the proviso that (i) at least one of R1 and R2 is other than phenyl when A is CH2 or CHMe and R3 is COOEt. and (ii) at least one  of K1 and R2 is other than phenyl, p-methoxyphenyl and p-chlorophenyl when A is CHMe and R3 is COOH) useful as topical antiinflammatory agents, were prepd. by the reaction of R1Z1HCR2CO and R3AZ2.
Patent KR-860000173-B1 (KR)
Title: Process for preparing alpha-aromatic group substituted alkanoic acids or esters thereof
Inventor: TSUCHIHASHI GENGICHI
IPC: C07C43/315
Filed: 1981-09-11
Granted: 1986-02-28
Abstract: The title compds. I (Ar = aromatic gp.; R1 = H or saturated aliphatic gp.; R2 = H, alkyl, hydroxyalkyl; R3, R4 = alkyl; R5 = alkyl or aromatic ring) were prepd. by the hydrolysis of α- sufonyloxyketoneacetal (II). Thus, 0.991g  -(methanesulfonyloxy)p- isobutylpropiophenonedimethylacetal and 0.3g calcium carbonate were refluxed in a mixture of H2O and methanol for 72hr, to give 0.519g α- (4-isobutylphenyl) propionic acid. I have pharmacological action.
Patent KR-880001268-B1 (KR)
Title: Centrifugal compressor
Inventor: BANDUKWALLA PHIROZE
IPC: F04D27/02
Filed: 1981-10-02
Granted: 1988-07-16
Abstract: The contrifugal compressor includes a housing having an inlet and an annular diffuser passage terminating at an outlet scroll, an impeller rotatably mounted in the housing between the inlet and diffuser passage and a diffuser in the diffuser passage.  This includes a fixed vane diffuser having a mixing length at least one half the cover length of the fixed vane diffuser and a movable annular ring located upstream of the fixed vane diffuser for restricting the diffuser passage.  An actuator moves the movable annlar ring to restrict the diffuser passage according to the load on the compressor.  The fixed vane diffuser can be of a vaned island construction.
Patent KR-880001535-B1 (KR)
Title: Digital formatting system
Inventor: DAKIN WAYNE R
IPC: H04N5/92
Filed: 1981-12-18
Granted: 1988-08-19
Abstract: The digital data to be converted is output from a store as a stream of four-bit words two digital analog converters, a pair of bits at a time.  Two four-level analog signals are output to filters where their bandwidths are limited to 1.7MHZ.  A mixer modulates a four level signal onto a 3.58 MHZ subcarrier signal from an oscillator. The modulated signal, four level analog signal and video syn signals on a line are summed to provide a composite signal.  The component from zero to 1.7 MHZ is the first four-level signal, and the component between 1.9 and 5.3 MHZ is the modulated subcarrier.  The composite signal is recored on a video disc using a frequency modulator and an intensity modulator.
Patent KR-890002716-B1 (KR)
Title: Composition of disperse dye
Inventor: ALTERMATT RUEDI
IPC: C09B29/08
Filed: 1982-08-05
Granted: 1989-07-25
Abstract: A colour-stable dispersion dye compsn. comprises (a) 20-55 wt.% of one or more dyes of formula (I), (b) 5-40 wt.% of one or more dyes of formula (II), and (c) 30-60 wt.% of one or more dispersers and opt. other conventional additives.  In the formulas, R1 is halogen; R2 is H, -CO(C1-4) alkyl or -CO-C6H5.  The compsn. is useful for dyeing or printing fibers and threads.
Patent KR-840001571-B1 (KR)
Title: An improved briquet
Inventor: LEE DONG-HUN
IPC: C10L5/02
Filed: 1982-09-29
Granted: 1984-10-06
Abstract: A briquet was improved by reducing the prodn. of harmful gases such as carbon monoxide and sulfur dioxide. Thus, a mixt. of SiO2 125, Na2O 50, Li2O 40, CaO 110, ZrO2 20, P2O5 15, Cuo 40 parts was melted at 1100oC in a muffle furnace to prevent oxidn., quenched to room temp., and puiverized to pass a 450 mesh in a ball mill. Dry Fe2O3 powder of 250g was added to the pulverized powder 1000g and mixed sufficiently. This mixt. of 700g was added to briquet material of 10kg and pressed in a mold to produce a briquet. After 6hr. of burning the produced briquet, the burning temp. became 790oC, and there was little carbon monoxide produced and only 0.6% of sulfur dioxie produced.
Patent KR-890000358-B1 (KR)
Title: Multiple variable rate audio message recording and playback
Inventor: DAKIN WAYNE R
IPC: H04N5/76
Filed: 1983-01-06
Granted: 1989-03-14
Abstract: This method recovers audio data from a block of composite digital data recorded as a sequential series of digitally encoded audio signals and message start address data signals, recorded along ith associated video data.  A write device stores the block of data recovered from the recording medium at sequentially addressed storage locations in an addressable store.  A selected circuit selects a message portion of data and a pointer circuit responds to this to produce a pointer address signal corresponding to the address where the message address data signal is stored. An address generating circuit generates the address of the storage locations of the message portion data selected.
Patent KR-870000464-B1 (KR)
Title: Remotely operated maintenance and inspection equipment transporters
Inventor: CREEK RONALD BOYD
IPC: B08B9/02
Filed: 1983-07-04
Granted: 1987-03-11
Abstract: Steam generator has a vertical tube bundle supported by a lower horizontal tube sheet in a shell and surounded by a wrapper extending from the shell upper part and ending short of the sheet. A system for cleaning and inspecting the part of the tubes immediately above the sheet includes a transporter which can be dismantled and can be passed through a shell opening to a position below the wrapper lower end and between bundle and shell inner surface. Wheels on the transporter engage the sheet upper surface and the transporter can be moved along the bundle periphery. Tube cleaning and inspection equipment is mounted on the transporter, which has an extension to engage the shell and stablize the transporter between shell and tubes for efficient operation of the equipment.
Patent KR-860002182-B1 (KR)
Title: Preparation for lead chromate
Inventor: LEE JONG-KYO
IPC: C01G37/14
Filed: 1984-12-20
Granted: 1986-12-24
Abstract: Lead chromate was prepd. by the reaction of lead sulphate with Na2CrO4. Thus, 1000g Zn waste from Zn refining process was washed with water to remove insoluble impurities and mixed with 30 ml NaCl(36%) to give PbSO4, which was reacted with chromic acid of 35% Na2CrO4, 41% CaCrO4.2H2O and 24 CaCl2 to give 66% PbCrO4 and 34% CaSO4.2H2O.
Patent KR-920010846-B1 (KR)
Inventor: SHIMIZU SHINJI
IPC: H01L21/336
Filed: 1984-12-24
Granted: 1992-12-19
Abstract: 내용 없음.
Patent KR-890000506-B1 (KR)
Inventor: BERG GUNNAR HEDEN
IPC: A21C15/00
Filed: 1984-12-27
Granted: 1989-03-20
Abstract: 내용 없음.
Patent KR-970006569-B1 (KR)
Inventor: MATSUI KAZUMI
IPC: B61L3/14
Filed: 1985-03-05
Granted: 1997-04-29
Abstract: 내용없음.
Patent KR-890001624-B1 (KR)
Title: Centrifugal governor for internal combustion engine
Inventor: OHKOSHI MASAYOSHI
IPC: F02D1/04
Filed: 1985-07-12
Granted: 1989-05-11
Abstract: The centrifugal governor includes a sensor lever (40) adapted to engage a cam surface portion (39) of a torque cam (32) determining a starting fuel increment at the start of the engine to displace the control rack (27) into a fuel increasing position.  A cancelling spring (37) is interposed between the torque cam and the tension lever (10) and urges the torque cam with a force dependent upon the angularity of the tension lever in a direction disengaging the sensor lever from the cam surface portion for interrupting the starting fuel increasing action of the governor. When the engine is in a starting condition a biaser forcibly displaces the torque cam against the urging force of the cancelling spring to predetermined position.
Patent KR-880002022-B1 (KR)
Title: The security apparatus for toy guns
Inventor: NO JAE-HUN
IPC: F41B7/08
Filed: 1985-07-25
Granted: 1988-10-12
Abstract: A safety device is designed to fire a propeller or parachute bullet only when the muzzle or the barrel is headed to the sky. In the same safety device described in Korean patent, 88-2021, a shooting piston (16) is locked at a shooting position by a threaded bar (31) to be inserted from the muzzle of a gun, such that a propeller or parachute bullet may be loaded in a cavity (32) of the shooting piston.  The device is characterized by that a thread (29) is formed along the inside circumference of the barrel and allows the threaded bar to engage and to push and hook the shooting piston at the shooting position.
Patent KR-880002285-B1 (KR)
Title: Power transmission apparatus for going and comming or shaking movement
Inventor: HAN SUN-YUN
IPC: F16H19/02
Filed: 1985-09-07
Granted: 1988-10-21
Abstract: This device is used for changing rotation into oscillation or reciprocation using spur gears (7,8) and an electromagnetic clutch. The clutch has a middle gear (9) on its surface and is located between the two spur gears which rotate opposite each other.  The clutch is combined with one of the two gears and the middle gear rotates positively or negatively when this gear is engaged in the last output gear and changes rotation into oscillation or reciprocation.
Patent KR-880001163-B1 (KR)
Title: Method for manufacturing prestressed composite beam
Inventor: CHONG KWANG-YONG
IPC: E04C3/10
Filed: 1985-09-27
Granted: 1988-07-02
Abstract: In a method that pours concrete jacket over the lower flange of a cambered I-beam under a preflection load and removes the preflection load after curing to give prestressing, the I-beam (1) is applied with a preflexion load (P1) and then is removed of it to return elastically to the original state although with a permanent deformation caused by the remaining  stress, which is then removed to give a stabilized I-beam.  While under a secondary preflection load (P2), concrete is poured and cured on the I-beam flange, and then the load is removed to introduce prestress in the beam (composite).
Patent KR-900002467-B1 (KR)
Title: Radio frequency field for nmr
Inventor: EDELSTEIN WILLIAM A
IPC: G01R33/34
Filed: 1985-10-08
Granted: 1990-04-16
Abstract: The coil is made of two conductive loop elements each including serially connected capacitors.  The segments are electrically interconnected by axial conductive elements having inherent inductances.  The coil can be energised by connecting a source of RF power across one of the capacitors in the loop elemets.  In a 'bank- pass' version the axial conductive elements as well as the conductive loop element are provided with capacitors. The capacitive elements comprises input elements for an equal number of RF power amplifiers.
Patent KR-940001551-B1 (KR)
Inventor: BAIKSLAND JONE P
IPC: G03F7/039
Filed: 1985-12-26
Granted: 1994-02-24
Abstract: 내용 없음.
Patent KR-890001914-B1 (KR)
Inventor: KINKADE NANCY E
IPC: C07C29/16
Filed: 1984-12-28
Granted: 1989-05-31
Abstract: 내용 없음.
Patent KR-940001790-B1 (KR)
Title: Manufacturing method of poly crystal silicon solar battery typed metal insulator semiconductor
Inventor: LEE BYONG-RYONG
IPC: H01L31/00
Filed: 1986-04-24
Granted: 1994-03-05
Abstract: The method for mfg. a metal insulator semiconductor (MIS) type polycrystalline silicon solar cell comprises (a) depositing an aluminium layer (1) for forming an electrode, (b) annealing a P-type polycrystalline silicon wafer under the nitrogen atmosphere to form an oxide (11), (c) depositing an aluminium layer to form a grid pattern metal electrode (4), and (d) depositing a silicon nitride (13) by using a mixed gas of silan (SiH4) gas and methan (NH3) gas diluted in the argon (Ar) to generate a fixed positive charge (12) between the nitride and the oxide. The solar cell increases electromotive force and short current.
Patent KR-950003638-B1 (KR)
Title: Error detection/correction code decording system
Inventor: SUMA TETSURO
IPC: H04N5/93
Filed: 1986-05-21
Granted: 1995-04-17
Abstract: An apparatus for decoding error detecting or correcting code which is constructed from digital information data and redundant data for detecting or correcting errors in the digital information data, the digital information data and redundant data being reproduced from a record medium by a playback apparatus that operates in a normal speed mode and fast and slow speed modes, includes a first decoder for decoding the error detecting or correcting code and for generating flag data indicating error conditions of the digital information data, a first memory for storing the digital information data subjected to the decoding in the first decoder, and a second memory for storing flag data, and a controller provided with a mode signal indicating a normal playback mode or a fast playback mode of the record medium playback apparatus for controlling the first and second memories so as to read out the digital information data and flag data, respectively, when the mode signal indicates the normal reproducing mode and so as to read out the digital information data without error and the flag data, respectively, when the mode signal indicates the fast reproducing mode.
Patent KR-940003909-B1 (KR)
Inventor: MERY JEAN-CLAUDE
IPC: F16D55/224
Filed: 1986-05-21
Granted: 1994-05-09
Abstract: 내용 없음.
Patent KR-900000425-B1 (KR)
Title: Polyamide resin composition
Inventor: YEO CHONG-KI
IPC: C08L77/00
Filed: 1986-10-17
Granted: 1990-01-30
Abstract: The polyamide having good mechanical property, electrical property and heat resistancy, is composed of (A) 95-110 wt.% polyamide resin, (B) 0.005-0.5 wt.% Cu(+2 cation) and halogencontg. compd., (C) 0.01- 1.0 wt.% alkali metal and halogen-contg. compd., and (D) 0.005-3.0 esterified phosphoric acid(+3 or +5 cation) having more than one of C4-18 alkyl or aryl.
Patent KR-910002736-B1 (KR)
Title: Combustion device
Inventor: ATACHI HUMIAKKI
IPC: F23N3/08
Filed: 1986-12-20
Granted: 1991-05-03
Abstract: The apparatus includes a proportional control valve (45)  for supplying  fuel  to  the  burner,  a  blower  (33)  for  supplying combustion air to the burner,  a  combustion  sensor  for  sensing combustion state of the burner, and a heating valve setting means. A proportional valve control circuit  (62)  controls  the  opening degree of the  valve (45) in response to the heating valve setting means. A blower  control  circuit  (63)  controls  the  amount  of combustion air. A feed back controls air-fuel ratio in sesponse to the output of combustion sensor in the valve control circuit  (62) or the blower control circuit (63).
Patent KR-930009519-B1 (KR)
Inventor: FUKAHORI HIDEHIKO
IPC: G03B17/14
Filed: 1987-02-17
Granted: 1993-10-06
Abstract: 내용 없음.
Patent KR-930003086-B1 (KR)
Inventor: MARUYAMA IWAO
IPC: F02B3/06
Filed: 1987-03-10
Granted: 1993-04-17
Abstract: 내용 없음.
Patent KR-910002354-B1 (KR)
Inventor: IIDA MASAYUKI
IPC: G10L15/06
Filed: 1987-10-30
Granted: 1991-04-20
Abstract: 내용 없음.
Patent KR-910005506-B1 (KR)
Title: Process for preparation of high water absorbing sheet resins
Inventor: CHOI SU-BONG
IPC: C08J5/00
Filed: 1987-12-30
Granted: 1991-07-31
Abstract: The sheet type-high  water  absorbable  resin  is  prepd.  by reverse suspension polymerizing the mixt. comprising  the  acrylic acid alkali metalic salts of 50-100  mole.%   neutral  degree  and water soluble radical polymerization initiator with a crosslinking agent to the 30-50 wt.% of water content  in  the  obtd.  polymer, forming sheet type-resins by the roller, and treating its  surface with the cross lining agent. The obtd.  resin  sheet  has  a  good absorption velocity, water absorption content and gel-intensity.
Patent KR-920002560-B1 (KR)
Inventor: FUHRMAN NATHAN
IPC: G21C21/02
Filed: 1988-08-03
Granted: 1992-03-27
Abstract: 내용 없음.
Patent KR-920004172-B1 (KR)
Inventor: MATSUSHITA YOSHINORI
IPC: H01L21/677
Filed: 1988-11-02
Granted: 1992-05-30
Abstract: 내용 없음.
Patent KR-970002599-B1 (KR)
Inventor: MACHOLDT HANS-TOBIAS
IPC: C09D5/46
Filed: 1988-11-04
Granted: 1997-03-06
Abstract: 내용없음.
Patent KR-910009041-B1 (KR)
Inventor: FUJIHIRA DATSUHIKO
IPC: H01L27/02
Filed: 1988-12-28
Granted: 1991-10-28
Abstract: 내용 없음.
Patent KR-920003223-B1 (KR)
Inventor: KIEFER WERNER
IPC: C03C3/118
Filed: 1989-01-16
Granted: 1992-04-24
Abstract: 내용 없음.
Patent KR-970003907-B1 (KR)
Inventor: USHIJIMA MITSURU
IPC: G03F7/26
Filed: 1989-02-08
Granted: 1997-03-22
Abstract: 요약없음
Patent KR-910008119-B1 (KR)
Title: Planner capacitor device and method of fabricating thereof
Inventor: KIM JAE-KAP
IPC: G11C11/34
Filed: 1989-02-28
Granted: 1991-10-10
Abstract: The manufacturing method of plate  capacitor  connecting  the MOSFET is composed of the following steps; forming a  gate  oxide, gate conducting material  and  insulator  in  sequence  on  p-type silicon wafer; removing the gate oxide and insulator to remain the gate electrode by using gate mask;  forming  a  n-type  drain  and source region at lower part of sidewall of gate electrode followed by forming a insulating spacer at the  same  region;  forming  the charge storage electrode region by n-type ion-implantation on  the upper  side  of  p+-type  region;  forming  capacitor   dielectric material at upper side of the charge storage electrode followed by forming a plate electrode.
Patent KR-0137024-B1 (KR)
Inventor: OHBA SHUZO
IPC: D04H1/498
Filed: 1989-04-29
Granted: 1998-04-28
Abstract: 없음
Patent KR-0162634-B1 (KR)
Inventor: CLEMOW ALASTAIR J T
IPC: A61B17/86
Filed: 1989-06-05
Granted: 1999-02-18
Abstract: 내용 없음.
Patent KR-930000953-B1 (KR)
Inventor: YOSHIDA SHIGEO
IPC: H04N7/015
Filed: 1989-08-08
Granted: 1993-02-11
Abstract: 내용 없음.
Patent KR-0136606-B1 (KR)
Inventor: DEGEN PETER J
IPC: B01D65/08
Filed: 1989-09-26
Granted: 1998-04-25
Abstract: 없음
Patent KR-970008484-B1 (KR)
Title: Antitumor substance, process for preparing the same, and anticancer agent containing the same
Inventor: SATO YOSHIKAZU
IPC: A61K31/35
Filed: 1989-09-29
Granted: 1997-05-24
Abstract: A compound represented by formula (I): <CHEM> wherein X and Y represents a hydrogen atom or a group RCO-, wherein R represents an alkyl group having from 1 to 4 carbon atoms, provided that they do not simultaneously represent a hydrogen atom, or a pharmaceutically acceptable salt thereof, which has low acute toxicity and potent antitumor activity.
Patent KR-0142422-B1 (KR)
Inventor: NILSSON LENNART STIG
IPC: H01F5/04
Filed: 1989-11-07
Granted: 1998-08-17
Abstract: 내용 없음.
Patent KR-920007266-B1 (KR)
Title: Trimming machine of sole breast
Inventor: YU SUNG-KWANG
IPC: A43D27/00
Filed: 1990-04-04
Granted: 1992-08-29
Abstract: The apparatus cuts unneccessary protrusion on the upper/lower contours of the  shoe  sole  just  after  forming  in  molds.  The apparatus comprises a roller cutting blade (3) horizontally formed on one end of a base body (1), a rotational blade  (5)  positioned vertically with the roller blade (3), a pair  of  conical  rollers (7,7') positioned on the inner side of the  roller  cutting  blade (3), a rubber roller (9)  freely  rotating  on  an  axis  (10),  a solenoid rod (12'), connected to the rubber roller axis (10),  for contacting the rubber roller on  the  roller  cutting  blade,  and another cutting assembly with a vertical structure.
Patent KR-930009380-B1 (KR)
Inventor: WADA JUNICHI
IPC: B60G17/018
Filed: 1990-05-25
Granted: 1993-10-02
Abstract: 내용 없음.
Patent KR-920007396-B1 (KR)
Title: Method for culture of microorganism
Inventor: PARK MYONG-KYU
IPC: C12N1/20
Filed: 1990-05-30
Granted: 1992-08-31
Abstract: A cattle growth hormone is  prepd.  by  fermenting  E.  coli, LUCK- BST-1E KFCC 10693  (I)  in  the  medium  contg.  sorbitol  or mannitol as carbon source. The strain (I) has Trp, Lac, Tac or  PL promotor as expression vector. The acetic acid prodn.  during  the fermentaion is inhibited by adding adding sorbitol or mannitol  as carbon source into the culture medium. The cattle  growth  hormone is obtd. in high yield by inhibiting acetic  acid  prodn.  in  the fermentation.
Patent KR-960005132-B1 (KR)
Title: Tv broadcasting program knowing method when playing reproducing mode
Inventor: NA JAE-HOON
IPC: G11B31/00
Filed: 1990-06-25
Granted: 1996-04-20
Abstract: The objective of this is to provide the recognizing method of broadcast program by displaying the memorized channel on a screen sequentially for a constant time; converting playing mode to still mode when pushing the monitor key during the video tape play by adding the monitor key to the body or the remote control of VTR. The method comprises the procedures of : checking whether monitor key is inputted during playing mode; converting to E-E mode by stopping the playing mode when inputting monitor key at the first procedure; displaying the channel memorized onto the channel memory(20) by selecting them at a constant interval time after converting to E-E mode during the second procedure.
Patent KR-930005751-B1 (KR)
Title: Flicker prevention circuit of ccd camera
Inventor: SHIM U-KYONG
IPC: H04N9/093
Filed: 1990-07-04
Granted: 1993-06-24
Abstract: The  circuit  prevents  flicker  by  varying  the  speed  of horizontal scanning to reduce the tiring of eyes when  watching  a television. It includes an  A/D  converter  (310)  for  separately converting the analog signals (R,G,B) to digital signals,  a  line memory section  (320)  for  writing/reading  the  digital  signals (R,G,B) with the N-time speed  of  A/D  converting  clock,  a  D/A converter (330) for converting  the  output  of  the  line  memory section (320) to analog signal,  and  a  vertical  sync.  detector (350) for detecting vertical sync. signal (Vsync) among  composite sync. signal (H+V) and applying it to a monitor (400).
Patent KR-930006983-B1 (KR)
Inventor: YOKUGURA SEIICHIRO
IPC: H01L29/788
Filed: 1990-07-05
Granted: 1993-07-24
Abstract: 내용 없음.
Patent KR-930006344-B1 (KR)
Title: Elevator-type parking apparatus
Inventor: LEE JONG-IL
IPC: E04H6/18
Filed: 1990-08-27
Granted: 1993-07-14
Abstract: The elevator type multi-layor parking system eliminates inner auxilliary columns, and horizontal beams reinforcing  the  columns used  in  the  conventional  parking   system,   to   reduce   the construction processes and cost. The parking  system  comprises  a main column (11) built in a corner; front/rear auxilliary  columns (12,13)  supporting  horizontal  loading  beams  (16,17);  a  lift apparatus (20); a  pork  type  loader;  front/rear  frame  (21,22) connecting the lift apparatus (20) with a  lift  winder  (50)  and independently   operating   ropes   (55);    left/right     frames (21a,22a,21b,22b);  a  lift  gear  train  (RG)  equipped  in   the front/rear frame;  a  loader  gear  train  (RA)  equipped  in  the left/right frames (21a,22a,21b,22b).
Patent KR-930004376-B1 (KR)
Title: Automatic document transfer apparatus
Inventor: BAEK IN-KUN
IPC: B65H20/06
Filed: 1990-09-28
Granted: 1993-05-26
Abstract: The feeder for continuously feeding a document page  by  page by detecting light emitted from a scanner in  a  copier,  prevents scattering of the loading document, reduces friction  between  the document  and  the  feeder  guide,  and   generation   of   static electricity on the document, and increases drawing tension of  the document for accurate feeding. The feeder  comprises  upper  frame (1) with left/right  projecting  means  (15,16)  for  loading  the document and preventing deviation of the document; lower frame (2) having driving shaft (6) fixed at elogated section  (20)  for  the guiding path of document moving;  round  tractor  means  (4),  for concentrating the drawing tension of document, driven by motor (9) on the  shaft  (6);  motor  driving  means  (10)  for  controlling rotating speed of the motor; a plurality of detecting sensors (11) for transmitting control signals to the means (10).