baber/WOPTO huggingface dataset:
Patent KR-20000013647-A (KR)
Title: Multi-function temperature controlling method of an electric paper floor and a circuit therefor
Inventor: LEE CHANG-YUL
IPC: H05B3/20
Filed: 1998-08-11
Abstract: PURPOSE: A multi-function temperature controlling method is provided to make fine adjustment possible, to prevent the loss of an energy with a sleep mode, to provide a health promotion, to diminish injurious wave, to make user maintain a healthy constitution, and to prevent a possibility of fire in advance. CONSTITUTION: A multi-function temperature controlling method comprising the steps of: delaying the time for a second if the relay(RY1-RY3) is on, at a state of the input/output is established; controlling on/off of the relay(RY1-RY3) according to the result of input test; establishing an initial value about temperature and time if the relay(RY1-RY3) is on/off; temporally storing the input data of port B, C into a register and converting the port B into input mode; temporally storing the input data of the port B into the register, converting the port B into output mode, and generating the temporal data stored in the register to the port B, C; discriminating whether it is sleep mode, if sleep mode, checking the time and falling the established temperature 1°C at four-minute intervals; if not sleep mode, discriminating whether the measured temperature is lower than the established temperature, if lower, turning-on a thermal output indicating lamp, if higher, turning-off the thermal output indicating lamp; discriminating whether the opening/shutting switch is on, if on, discriminating whether the negative electric potential is on, if not on, turning-off the LED and clearing the time; if on, discriminating whether it is time output, if it is, indicating it with indicator; if not, discriminating whether the heater is open or short, if not, discriminating whether triac(TA1) is short, if short, indicating an error message with the indicator(20).
Patent KR-20000014022-A (KR)
Title: Process for preparing polycarbonate resin and its product
Inventor: YANG DAE MO
IPC: C08J5/00
Filed: 1998-08-17
Abstract: PURPOSE: A polycarbonate resin and its product is prepared which has a good effectiveness as an engineering plastics. CONSTITUTION: 40-85 wt.% of polycarbonate resin and 15-60 wt.% of a functional composition for material having at least one plutonic granite powder selected from plutonic granite A powder consisting of 79.76 wt.% of SiO2, 9.87 wt.% of Al2O3, 0.21 wt.% of Fe2O3, 3.79 wt.% of K2O, 2.81 wt.% of Na2O, 1.59 wt.% of CaO, 0.86 wt.% of MgO and 1.11 wt.% of residue containing 0.5-2 ppm of germanium; plutonic granite B powder consisting of 73.41 wt.% of SiO2, 14.56 wt.% of Al2O3, 1.13 wt.% of Fe2O3, 4.13 wt.% of K2O, 2.48 wt.% of Na2O, 2.28 wt.% of CaO, 0.72 wt.% of MgO, 1.29 wt.% of residue containing 0.5-2 ppm of germanium; plutonic granite C powder consisting of 73.53 wt.% of SiO2, 12.52 wt.% of Al2O3, 4.76 wt.% of Fe2O3, 3.78 wt.% of Fe2O3, 2.07 wt.% of Na2O, 1.56 wt.% of CaO, 0.51 wt.% of MgO, 1.27 wt.% of residue containing 0.5-2 ppm of germanium; plutonic granite D powder consisting of 54.42 wt.% of SiO2, 9.16 wt.% of Al2O3, 1.87 wt.% of Fe2O3, 4.18 wt.% of K2O, 3.74 wt.% of Na2O, 4.17 wt.% of CaO, 14.19 wt.% of MgO, 8.27 wt.% of residue; and plutonic granite E powder consisting of 79.89 wt.% of SiO2, 14.92 wt.% of Al2O3, 0.31 wt.% of Fe2O3, 1.24 wt.% of K2O, 0.64 wt.% of Na2O, 1.89 wt.% of CaO, 0.17 wt.% of MgO, 0.94 wt.% of residue are compounded at 290-335°C to make chip type polycarbonate.
Patent KR-19990029479-A (KR)
Title: 글라스용기의 제조방법 및 제조장치
IPC: C03B11/10
Filed: 1998-09-03
Abstract: 글라스 기판을 균일하게 가열하여 연화시킨 상태에서 금형으로 프레스 가공이 행해지므로, 작업공의 수가 감소하고 가공시간의 단축을 도모할 수 있다. 
     외연부분에 틀체(4b)를 갖는 완성품으로서의 글라스 용기(4)의 내부 중공부(4c)와 대략 동일치수 형상의 볼록부(1a)를 갖는 상형(1)과, 글라스 용기(4)의 외형 치수 형상과 대략 동일치수 형상의 캐비티(2a)를 갖고 상형(1)에 대향배치되는 하형(2)을 사용한다.  공작물로서의 글라스 기판(5)을 기판 지지기구(14)의 지지핀(16)에 의해 하형(2)으로부터 소정량 뜨게 한 상태로 지지하고, 가스 버너(19)에 의해 글라스 기판(5)을 연화온도 이상으로 가열하고, 소정 온도로 유지된 상형(1)을 하형(2)을 향하여 하강시켜서, 상형(1)의 볼록부(1a)에 의해 글라스 기판(5)을 하형(2)의 캐비티(2a) 내로 프레스 가공하여 글라스 용기(4)를 성형한다.
Patent KR-19990029937-A (KR)
Title: 반도체 레이저의 제조 방법
IPC: H01S5/343
Filed: 1998-09-18
Abstract: 본 발명은 활성층(25)의 양면측에 각각 상기 활성층의 밴드 갭 이상의 밴드 갭을 갖는 한 쌍의 광도파층(23,28)을 각각 형성하고, 상기 활성층(25) 및 상기 광도파층(23,28)을 끼우도록 상기 광도파층의 밴드 갭보다 넓은 밴드 갭을 갖는 한 쌍의 클래드층(22,29)을 형성하고, 상기 활성층(25)과 상기 광도파층(23,28)간에 상기 활성층(25) 및 상기 광도파층의 각 밴드 갭보다 넓은 밴드 갭을 갖는 한 쌍의 캐리어 블록층(24,26)을 각각 형성하고, 상기 광도파층(23,28)의 적어도 한쪽 내에 띠형 창을 갖는 전류 블록층(27)을 매입하며, 상기 전류 블록층(27)을 선택 성장에 의해 형성하는 것을 특징으로 하는 자기 정합형 반도체 레이저의 제조 방법에 관한 것이다.  이러한 식으로 전류 블록층의 창을 정확하게 형성할 수 있고 또한 제조 수율을 향상할 수 있는 한편 다른 층에 대한 악영향을 피할 수 있다.
Patent KR-20000024802-A (KR)
Title: Apparatus and method of adjusting convergence of projection visual display
Inventor: AN HYEONG MIN
IPC: H04N9/28
Filed: 1998-10-02
Abstract: PURPOSE: A method of adjusting a convergence of a projection visual display is provided to automatically adjust the convergence. CONSTITUTION: A method of adjusting a convergence of a projection visual display comprises: a first step of displaying a cross hatch pattern on a screen by one of R,G & B projectors; a second step of adjusting the convergence of the cross hatch pattern displayed in the first step and storing the adjusted cross hatch pattern as a reference convergence; a third step of displaying the cross hatch pattern on the screen by sequentially operating the other projectors when the storage of the reference convergence data is completed in the second step; a fourth step of searching for a position of the cross hatch pattern displayed in the third step; a fifth step of calculating an error value by comparing the position of the cross hatch pattern displayed in the fourth step with the reference convergence data stored in the second step; and a sixth step of adjusting the convergence by the error value calculated in the fifth step.
Patent KR-20000021998-A (KR)
Title: Process for preparing simvastatin and intermediate compound thereof
Inventor: LEE KWANG HYUK
IPC: C07D309/10
Filed: 1998-09-30
Abstract: PURPOSE: A process for preparing simvastatin and intermediate compound thereof is provided by which simvastatin can be obtained in high yield without using LiBr. CONSTITUTION: A process comprises the steps of: acylating a carboxyl acid of formula VI with 6(R)-£2-(8`(S)-hydroxy-2`(S),6`(R)-dimethyl-1`,2`,6`,7`,8`,8`a(R)-hexahydronaphthyl -1`(s)ethyl-4(R)-t-butyldimethylsilyloxy-3,4,5,6-tetrahydro-2H-pyran-2-one to give a compound of formula I`; and hydroxylating the compound of formula I` to give a compound of formula I wherein R is methyl, propyl, n-butyl, t-butyl or phenyl; and R1 is halogen.
Patent KR-20000025316-A (KR)
Title: Method for controlling transmission speed of packet data of mobile communication system
Inventor: LEE YOUNG WOONG
IPC: H04B7/26
Filed: 1998-10-09
Abstract: PURPOSE: A method for controlling a transmission speed of packet data of a mobile communication system is provided to be able to control transmission rate on the basis of a correct present location and an interface with an adjacent base station variously by selecting rate of a transmission speed of a packet data autonomously by a device within a range to minimize an interface with an adjacent base station in case a service of packet data with forward and reverse direction is wanted. CONSTITUTION: A method for controlling a transmission speed of packet data of a mobile communication system includes a first and a second step. The first step is to transmit load state of a base station including the determined threshold value over related base station to each mobile station by determining an autonomous threshold value which is possible to be setup autonomously from load state of each base station reported periodically from a base station by mobile station. The second step is to transmit/receive a data to/from related base station by determining a speed of transmission from a mobile station to a base station referring to the determined threshold value.
Patent KR-19990037445-A (KR)
Title: 반응성 유체를 미시적 혼합하는 연속적 중합방법
IPC: B01F13/10
Filed: 1998-10-28
Abstract: (1) 단량체(들) 및 (2) 개시제계로 형성된 유체의 자유-임핀징-제트 미시적 혼합에 의해 호모중합체 또는 공중합체를 연속적으로 제조하는 방법은 상기 유체 (1) 및 (2)를 미시적 혼합하고 이들 유체 혼합물을 임핀지먼트 지점 (I) 에서 시작하는 제트 Jr 의 형태로 회수하는 것이며, 미시적 혼합물은 하기에 의해 수득된다: 
     a) 상기 동일 또는 상이한 유체의 적어도 두 제트 Ja 의 적어도 한 군을 형성, 이들 제트는 임핀지먼트 지점 (I) 에서 일치하고, 같은 군의 제트 Ja 는 모두 동일한 기하형이고, 이들 축은 제트 Jr 의 축 (A) 에 수직한 평면상에의 이들 사영이 균일한 방식으로 분포된 각을 갖도록 배열되고 이들 축은 90°이하의 0 아닌 동일각 α에 의해 상기 축 (A) 에 대해 기울어져 있다; 
     b) 제트 Jr 을 형성하기 위하여 상기 제트 Ja 의 적어도 한 유체와 다른 유체의 적어도 한 제트 Jb 를 임핀지먼트 지점 (I) 으로 동시에 향하게 하고, 제트 Jb 의 축은 각 α보다 작은 각 β에 의해 제트 Jr 의 축에 대해 기울어져 있다; 그리고 
     c) 제트 Ja 및 Jb 에서의 유체의 혼합물을 호모중합체 또는 공중합체로 이루어진 제트 Jr 의 형태로 회수한다.
Patent KR-20000028481-A (KR)
Title: Device for sealing door of refrigerator
Inventor: LEE GANG SEON
IPC: F25D23/02
Filed: 1998-10-31
Abstract: PURPOSE: A door sealing device of a refrigerator is provided to selectively shut an inside of a refrigerator and an outside of a refrigerator without regard to the deformation of a gasket of a refrigerator. CONSTITUTION: An inside of a refrigerator has a certain temperature by being cooled by the starting of a refrigerator at normal times when a door(D) is closed. And a shape memory alloy(130) is contracted and a shutter plate(120) is placed at a position "B" because the temperature in the refrigerator becomes lower than a certain value. Thus, a piece for preventing leakage of cool air cuts off the inflow of warm air out of a refrigerator to inside of the refrigerator and the leakage of the cool air in the refrigerator. If a user opens the door, the exterior warm air is flowed into the refrigerator and delivered to the shape memory alloy. Then, the shape memory alloy is expanded while pushing the shutter plate to place the shutter plate at a position "A" inside the door. Thereby, the interference of a user to the shutter plate is prevented. Thereafter, the temperature in the refrigerator becomes lower than the certain value and the shape memory alloy is contracted and turns via a gap(102a). Thereby the shutter plate rises up and returns to an original position.
Patent KR-20000031466-A (KR)
Title: Apparatus for measuring gate current of transistor
Inventor: LEE SANG GI
IPC: G01R19/00
Filed: 1998-11-06
Abstract: PURPOSE: An apparatus for measuring a gate current of a transistor is provided to measure a current of a gate by converting the gate current to a low frequency. CONSTITUTION: An apparatus for measuring a gate current of a transistor comprises a ring oscillator(100), a current/voltage converter(200), a pulse amplifier(300), and an oscilloscope(400). The ring oscillator controls a frequency and an amplitude of a pulse and applies a current to a gate of measured unit element. The current/voltage converter converts the current of the unit element to a voltage. The pulse amplifier amplifies the converted voltage. The oscilloscope detects the current of the gate by the amplified voltage and outputs the detected value.
Patent KR-20000032554-A (KR)
Title: Fabrication method of double thin film actuated mirror array
Inventor: KIM HONG SEONG
IPC: G02F1/015
Filed: 1998-11-16
Abstract: PURPOSE: A fabrication method of double thin film actuated mirror array is provided to enhance the flatness of a second sacrificial layer and a mirror surface on it, thereby improving reflection characteristics. CONSTITUTION: A fabrication method of double thin film actuated mirror array comprises steps of: forming a drive substrate(5); sequentially forming a first sacrificial layer(25), a membrane(30), a lower electrode(35), a deformation layer(40) and an upper electrode(45) on the drive substrate and then forming an actuator(65) by connecting the lower electrode and a drain pad of the drive substrate; depositing and flattening a second sacrificial layer(70) by PVD method on the actuator; patterning the second sacrificial layer(70) in order to form a post(75) supporting a mirror surface on the second sacrificial layer; forming a mirror surface on the second sacrificial layer and then patterning it; and removing the first and second sacrificial layers.
Patent KR-19990045420-A (KR)
Title: 위상 로킹 루프 회로, 재생 장치 및 위상 로킹 방법
IPC: G11B20/14
Filed: 1998-11-19
Abstract: 본 발명은 위상 로킹 루프 회로, 재생 장치 및 캡쳐 범위 및 로킹 범위를 확장시킬 수 있는 위상 로킹 방법을 제공한다.  위상 로킹 루프가 로킹되기 전에, 전압 제어 발진기의 출력 클럭은 수정 발진기의 기준 클럭을 기준으로 카운팅되고, 디스크로부터 재생된 런 길이 제한 코드와 기준 클럭 간의 에러 성분이 추출된다.  그 다음, 계산된 출력 클럭값과 추출된 에러 성분의 가산 결과에 기초하여, PLL 회로가 구성된다.  위상 로킹 루프 회로가 로킹된 후, 디스크로부터 재생된 런 길이 제한 코드에 대한 전압 제어 발진기의 출력 클럭의 위상 에러가 검출되고, PLL 회로는 검출된 위상 에러에 기초하여 구성된다.
Patent KR-19990014626-A (KR)
Title: 다양한 크기의 축부재를 제거할 수 있는 멀티풀러
Filed: 1998-11-27
Abstract: 중앙부로부터 뻗어 있는 두 개 또는 세 개의 연장부와 상기 중앙부에 있는 나사구멍을 가지는 본체; 상기 본체에 연결되고, 제거하고자 하는 축부재의 원주면에 걸기 위한 후크를 양단부에 구비하는 두 개 또는 세 개의 파지 아암; 상기 본체의 연장부와 상기 대응하는 파지 아암을 연결하여 파지 아암이 본체에 대하여 선회할 수 있도록 하는 링크부; 상기 본체 중앙에 형성되어 있는 나사구멍을 통하여 나사결합되는 중앙나사봉로 이루어지는 풀러에 있어서, 상기 파지 아암에는 상기 링크부와 연결되는 두 개 또는 세 개의 연결구멍이 대칭 또는 비대칭으로 형성되어 있고, 상기 파지 아암의 양 단부에 형성되어 있는 후크의 두께를 다르게 하는 것을 특징으로 하는 풀러를 제공한다. 그 풀러를 이용하면 두께가 다른 두 후크를 모두 이용함으로써 각각 다른 크기를 가지는 다양한 축부재를 하나의 풀러로 동시에 제거할 수 있다.
Patent KR-20000039494-A (KR)
Title: Hydraulic elevator device
Inventor: CHOI SEUNG CHEOL
IPC: B66B9/04
Filed: 1998-12-14
Abstract: PURPOSE: A hydraulic elevator device is provided to improve the energy efficiency by using a reversible flow preventing valve and an operator. CONSTITUTION: A hydraulic elevator device comprises a reversible flow preventing valve(5) and an operator(16). The reversible flow preventing valve(5) is connected between a hydraulic cylinder(1) for the elevation of an elevator(2) and a hydraulic pump(3). The reversible flow preventing valve(5) is opened when the hydraulic pump(3) is driven, and is closed when the hydraulic pump(3) is stopped. The operator applies an additional closing force to the reversible flow preventing valve(5).
Patent KR-20000039758-A (KR)
Title: Method and apparatus for preparing string for packing flowers and the product
Inventor: OH SU GUN
IPC: B65H49/14
Filed: 1998-12-15
Abstract: PURPOSE: A method of preparing string for packing flowers is provided to enhance productivity by easily preparing the string without expensive equipment and to prevent fingers from being injured even in working for a long time by easily binding flowers. CONSTITUTION: A foaming agent is continuously coated on the outer surface of iron, and then the iron passes through a heating path to foam the agent. The foaming agent is heated up to the foaming temperature and forms a coated layer by expanding the volume. After that, the coated layer is cooled rapidly to be hardened. The string for packing flowers is produced by winding the iron up on a reel.
Patent KR-20000041283-A (KR)
Title: Controller of three axial overhead crane
Inventor: CHO SEONG GEUN
IPC: B66C13/18
Filed: 1998-12-22
Abstract: PURPOSE: A controller of a three axial overhead crane is provided to prevent a shaking of a transferred material generated during moving the overhead crane and to quickly move the overhead crane in a needed position. CONSTITUTION: A controller of a three axial overhead crane contains a speed servo typed purge controller for preventing a shaking to output a first compensating signal to compensate a reference positional input signal of a girder or a trolley and operated according to a control regulation of purge by containing a control regulating table of purge. And a first adjusting device and a first speed servo typed controller of location(107) to output a first control signal of speed to control a speed of each motor for driving to locate the girder or the trolley in an aimed position according to the control signal of location are equipped. A second adjusting device to output a control signal of height by adjusting an output signal of height from a reference input signal of height of a transferred material is contained. A second speed servo typed controller of position to output a second control signal of speed to control the speed of the driving motor to arrive the transferred material to an aimed height according to the control signal of height and a second speed servo device(109) to drive the motor to the speed of the driving motor for a Z direction of the transferred material to follow the second control signal of speed are contained.
Patent KR-20000042494-A (KR)
Title: Food extraction for livestock feed and mixing machine thereof
Inventor: OH IN CHEOL
IPC: A23N17/00
Filed: 1998-12-24
Abstract: PURPOSE: A mixing machine for producing a livestock feed by extracting food and mixing rice flour and wheat bran are provided which have an advantage of extracting food and producing a livestock feed simultaneously in a machine. CONSTITUTION: A apparatus for extracting food and producing a livestock feed comprises a plurality of screws (6)(6') for crushing waste food and conveying; a W-shaped heating plate (4) for heating waste food, which is heated by a burner (3) at the lower part of a body (1) with a hopper (2) at its upper part; a liquid collecting chamber for collecting the liquefied waste food fallen down from a screw (10a) in an agitation chamber (10)(10') through the conveying groove (8)(8') installed on both ends of the heating plate; and a mixing pipe with a plurality of screws (14)(14') for mixing the liquid waste food with rice flour and wheat bran.
Patent KR-20000043425-A (KR)
Title: Method and apparatus for measuring thickness of brick in bottom part of shaft furnace by measuring thermal flux
Inventor: JUNG JIN SU
IPC: G01B13/02
Filed: 1998-12-29
Abstract: PURPOSE: A method and an apparatus for measuring a thickness of a brick in a bottom part of a shaft furnace by measuring a thermal flux are provided to prevent abrasion and determine precise timing of repair of the furnace by measuring thermal flux at an iron surface of the furnace. CONSTITUTION: A method for measuring a thickness of a brick in a bottom part of a shaft furnace by measuring a thermal flux includes the steps of computing a thermal electromotive force by attaching an apparatus for measuring a thickness of a brick in a bottom part of a shaft furnace by a formula: E=E1 delta T, obtaining a thermal flux(q) in a thermal flux measuring apparatus by a formula: q=k/L delta T, obtaining a thermal flux by combining the above formulas: q=k/L x 1/nS x E, and computing the thickness of the brick by formula: q=(Tp-tw)/(lx/k1+l2/k2+l3/kc+1/hw).
Patent KR-20000043930-A (KR)
Title: System for managing vehicle state
Inventor: LEE WAN HEE
IPC: G08C17/02
Filed: 1998-12-29
Abstract: PURPOSE: A vehicle state managing system is provided to inform a vehicle managing center a vehicle state which is checked periodically or unexpectedly by use of a mobile communication terminal. CONSTITUTION: A vehicle state managing system comprises a plurality of base stations(21-2n) which confirms positions of mobile terminals installed at vehicles. A plurality of base station controllers(31-3n) correspond to the base stations(21-2n), and manages corresponding base stations, respectively. A mobile telephone exchange(3) processes a call requested from the base stations(21-2n) through the corresponding base station controller. A certification center(5) stores an identification number and a charging standard of each mobile terminal, and makes the mobile telephone exchange(4) perform an allowance and a charging process with regard to any mobile terminal. A vehicle managing center(6) performs a maintenance and a management of a vehicle on the basis of a check state of the vehicle received through a mobile communication network, and is connected so as to communicate with a vehicle maintenance shop(8), a police station(9) and a hospital(10).
Patent KR-20000044712-A (KR)
Title: Apparatus for removing condensate water of package air conditioner
Inventor: LIM WON KYEONG
IPC: F24F13/00
Filed: 1998-12-30
Abstract: PURPOSE: A condensate water removal apparatus of a package air conditioner is provided to prevent disorder of a machine due to condensate water by discharging condensate water forcibly when condensate water is not discharged due to defect of a discharge hole. CONSTITUTION: Exterior warm air sucked via a suction grill part(80) by driving an air conditioner is heat exchanged and then condensate water is generated. The condensate water is discharged outside via a discharge hole(21) formed on one side of a condensate water gutter(20) after being collected in the condensate water gutter installed in the lower end of an indoor unit. When the discharge hole becomes defective or clogged due to alien materials, the condensate water is collected in the condensate water gutter continuously. The condensate water lifts a float of a water level observation window(30) gradually. The float of the water level observation window is confirmed outside via a transparent window of a side panel(51). Thus, a user recognizes the defect of the condensate water. If a piston(12) of a handle(13) formed on the side panel is reciprocated by a user, the condensate water in the condensate water gutter is forcibly discharged outside via an outer hose(17) connected to a connecting pipe(16).
Patent KR-20000044967-A (KR)
Title: Prepreg and preparation method thereof
Inventor: LIM SEUNG KYU
IPC: B32B17/04
Filed: 1998-12-30
Abstract: PURPOSE: A prepreg and its preparation method are provided, to improve the reinforcing effect and construction of steel reinforced concrete structure. CONSTITUTION: A prepreg is constituted with the carbon fiber sheet/scream sheet interlayer layered body comprising the layered the carbon fiber sheet (1) where carbon fiber toes (1a,1b,1c,1d) are arranged in uni-direction and the scream sheet (2), and the binder resin (3a) which does not contain a curing agent and a curing promoting agent is inserted between the toes of the carbon fiber sheet (1) and is partially inserted into the inside of the carbon fiber toes through the surface of scream sheet (2) of the interlayer layered body. Preferably the scream sheet is at least one material selected from the group consisting of fiber glass, aramid fiber and polyester fiber, is resin-permeable, and has the viscosity of 8,000-14,000 cps at the temperature of 70°C.
Patent KR-20000045706-A (KR)
Title: Device for vertically transferring seedling culture box of transplanting apparatus
Inventor: NAM BYUNG DAE
IPC: A01C11/02
Filed: 1998-12-30
Abstract: PURPOSE: A device for vertically transferring the seedling culture box of a transplanting apparatus is provided to move the seedling culture box step by step vertically. CONSTITUTION: A first stopping member(326) is installed at the lower end of a carriage(300) for pushing the upper end of a moving lever(330). Thus, a racket pusher(324) is moved by an operating member(334) of racket pusher for being separated from the combined state with teeth(305). An operating member(336) of sensor approaches a first sensor(340) for operating the first sensor. Therefore, a vertical moving cylinder is operated for returning a carriage into an original location. Herein, a locking member(310) is pushed by a locking member pusher(314), which is moved with the carriage by a cable(371), for being unlocked from a stopping hole. Herein, a vertical transferring chain is installed in an S-shape for increasing the moving stroke of the carriage. When the carriage is returned to the original location, a second sensor(342) detects the movement of the carriage for operating a solenoid valve to drain operating oil in the vertical transferring cylinder. Therefore, the carriage is moved toward one direction by the racket pusher.