baber/WOPTO huggingface dataset:
Patent KR-20000020921-A (KR)
Title: Method for maintaining or cutting off channel in data communication of flip-type terminal
Inventor: PARK SANG HWAN
IPC: H04B1/38
Filed: 1998-09-24
Abstract: PURPOSE: A method for maintaining or cutting off a channel in a flip type terminal is provided to maintain a channel under a shutting a flip state and to automatically cut off the channel when there is no change in the terminal's state. CONSTITUTION: A channel between the base station and the terminal is formed. If a data communication state is determined, a disable signal is generated, an opening/closing sensor does not generate a signal informing a closing of the flip, and thus a channel is maintained. If the communication state is the audio communication, an enable signal is generated, the opening/closing sensor generates a signal informing a closing of the flip. If the flip is closed, the communication is finished.
Patent KR-19990036797-A (KR)
Title: 금속 쉘에 의해 형성된 결합 부분을 가지는 전기 접속기
Filed: 1998-10-02
Abstract: 절연체 몸체, 상기 절연체 몸체에 고정되고, 결합 플러그 접속기를 수용하기 위한 결합 홀에 접촉 부분을 가지는 다수의 접촉부, 및 상기 절연체 몸체상에 설비된 금속 쉘을 포함하는 프린팅 회로 보드상 표면에 설치될 전기 접속기에서, 상기 절연체 몸체에는 금속 쉘을 지지하기 위한 접촉부와 평행하게 연장하는 한쌍의 필라가 형성된다.  결합 홀은 접촉부가 그 사이에 절연체 벽없이 금속 쉘에 의해 직접적으로 밀봉되도록 필라에 의해 지지된 금속 쉘에 의해 형성된다.
Patent KR-20000025372-A (KR)
Title: Method for preventing network computer from being downed
Inventor: KO YOUNG DEOK
IPC: G06F15/16
Filed: 1998-10-10
Abstract: PURPOSE: A method for preventing network computer from being crashed is to reduce the time for booting and to enhance the managing speed by storing and managing the information needed for booting in a separate file and reduces the repeating operation of downloading the information from the server. CONSTITUTION: A system comprises a server and a client. A method comprises a step of receiving the response of the network information after requesting the information at the server according to a certain command(ST200-202); a step of setting the network environment of the client according to the network information(ST206); and a step of storing and compressing at the memory provided to the client and downloading the file information related to the managing system from the server after setting the client environment(ST210). The method further comprises a step of booting the client referring to the file information after opening the compressed file(ST212).
Patent KR-19990037038-A (KR)
Title: 인쇄 적성이 우수한 수지 필름
IPC: C08J5/18
Filed: 1998-10-13
Abstract: 본 발명은 잉크 건조성 및 전사성(transferability)이 우수하며, JIS-K5101-1991에 따라 측정한 흡유량(oil absorption)이 70 내지 200㎖/100g인 탄산칼슘 분말(A) 25 내지 65중량%와 열가소성 수지(B) 35 내지 75중량%를 함유하는 수지 조성물을 포함하는 인쇄용 수지 필름에 관한 것이다.
Patent KR-20000027400-A (KR)
Title: Electrically erasable and programmable read only memory and method thereof
Inventor: KIM YONG HAE
IPC: H01L21/8247
Filed: 1998-10-28
Abstract: PURPOSE: An electrically erasable and programmable read only memory(EEPROM) is provided to improve a degree of integration by avoiding being affected by the defect of a silicon substrate and controlling the length of a control gate without relying on a lithography process. CONSTITUTION: An electrically erasable and programmable read only memory(EEPROM) comprises: a semiconductor layer; a gate insulating layer formed on the side of the semiconductor layer; a floating gate(F) on the side of the gate insulating layer; a first insulating layer on the side of the gate insulating layer surrounding the floating gate; a control gate(C) overlapped with the floating gate through the first insulating layer, the control gate being adjacent to the side of the first insulating layer; a first junction region formed on the upper surface of the semiconductor layer adjacent with the floating gate; and a second junction region formed on the bottom surface of the semiconductor layer adjacent with the floating gate.
Patent KR-20000027752-A (KR)
Title: Switching mode power supply
Inventor: LEE JIN SEON
IPC: H02H7/12
Filed: 1998-10-29
Abstract: PURPOSE: A switching mode power supply is disclosed to constantly maintain output power regardless of input voltage by providing an over current protection circuit CONSTITUTION: A switching mode power supply includes a driver(1) for generating PWM signals driving a switch element(5), and a resister(3) for detecting an over current flowing along the switch element(5). The over current flowing along the switch element is cut-off by an over current protection circuit(4). An amplifier(2) is provided to bypass the PWM signal applied to the switch element(5) when the over current is detected. The over current protection circuit(4) includes a driving member for driving the amplifier so that the PWM signal can be bypassed, and a maintaining member for constantly maintaining a protection operation point so that the driving member can be operated at a constant current detecting point regardless of input voltage.
Patent KR-20000031206-A (KR)
Title: Flat image display
Inventor: KIM HONG GWON
IPC: H01J1/30
Filed: 1998-11-04
Abstract: PURPOSE: A flat image display is provided to simplify electromagnetic deflection by forming an electrode at one side of an electron beam hole, to attain a big deflection angle using small voltage difference, and to select a deflection angle with a simple circuit such as an analog switch. CONSTITUTION: A flat image display includes a high vacuum envelope(not shown), a cathode plate(51), a control plate(53), a deflection plate(55), and a screen plate(56). The cathode plate is implemented in the envelope and generates an electron beam. The control plate is mounted adjustably for the electron beam to penetrate vertical and parallel predetermined regions. The deflection plate located on one side of the control plate includes plural electron beam holes formed for the electron beam to pass. The electrodes are implemented symmetrically from the electron beam hole and a predetermined voltage is applied across the electrodes. The screen plate is located in one side of the deflection plate and a fluorescent material is formed at the other side of the deflection plate.
Patent KR-20000033999-A (KR)
Title: Sector antenna system of code division multiple access(cdma) mobile communication system
Inventor: KANG YANG KI
IPC: H01Q1/24
Filed: 1998-11-26
Abstract: PURPOSE: A sector antenna system of a CDMA mobile communication system is provided where distance between antenna sensors is optimized. CONSTITUTION: A sector antenna system of a CDMA mobile communication system increases the success rate of soft handoff, and increases the antenna gain. The sector antenna system has a cell structure divided into a number of sectors, and includes a linear array antenna including a number of antenna sensors, and the distance between the adjacent antenna sensors is determined by considering an overlapping angle of a beam generated by a softer handoff.
Patent KR-20000034284-A (KR)
Title: Method of determining the shrinkage of a coke cake
Inventor: PARK JO WON
IPC: C10B35/00
Filed: 1998-11-28
Abstract: PURPOSE: A method of determining the shrinkage of a coke cake is provided to give, in even case of the heterogeneous planarization of the incorporation therein, the exactness for determining it and offer therefore the confidence in its shrinkage. CONSTITUTION: The method is comprised of the following four steps. The volume of coal incorporated is firstly calculated through the exit from a coal incorporating unit. Secondly, an extruder ram is operated, when completed the drying step, to extrude a coke cake into a coke guide, and the level of the coke cake from a reactor is simultaneously detected in order per an hour by the ram. Thirdly, the detection of the level is, when the extrusion is completed, stopped, and the coke level profile is given which shows the level value for the coke at the determining point, based on the level data of the coke cake detected per given hour for operating times. Finally, the shrinkage of the coke cake is derived from the volume of the coke cake calculated from the third step and the volume of the cloak incorporated from the first step.
Patent KR-20000037788-A (KR)
Title: Blower having scroll housing with circular arc
Inventor: LEE JUN SE
IPC: F04D29/44
Filed: 1998-12-02
Abstract: PURPOSE: A blower having a scroll housing with a circular arc is provided to increase discharging flux with sufficient recover of suction flow pressure and to reduce noise and flow loss caused by backward flowing around a cutoff position. CONSTITUTION: A blower(50) sucks air through a suction hole(51a) with the rotation of an impeller(52). The sucked air is discharged to the outside from a vent hole(51b) with the guide of a scroll housing(51). The scroll housing regularly forms a circular arc angle section from a cutoff position(C) so that the scroll housing is enlarged, having the more expanding angle of a channel. Thus, the flow pressure from the suction hole is sufficiently recovered and discharging flux is increased. Also, the noises and flow loss caused by backward flowing are reduced around the cutoff position without sudden enlargement of the channel.
Patent KR-20000038974-A (KR)
Title: Card hanger type lessoning instrument
Inventor: GO JONG TAEK
IPC: G09B1/10
Filed: 1998-12-10
Abstract: PURPOSE: A card hanger type lessoning instrument is provided to improve the education convenience by making it possible for cards to be attachable to a board. CONSTITUTION: A card hanger type lessoning instrument includes a card(10) formed in a letter, a number or a specific shape and a lesson board(20) having a size that can attach a lot of the cards and made of a material same as that of the card(10). The card(10) is provided with a hole(16) and the lesson board(20) is provided with a plurality of holding parts(30) in which the hole(16) of the card(10) is hooked so that the card can be hung on the board(20). The holding parts(30) includes a body(32) and a head(34) formed on one end of the body and provided with a step(36).
Patent KR-20000040509-A (KR)
Title: Carrier frame for tape bga substrate and manufacture method thereof
Inventor: KIM SU GI
IPC: H01L23/28
Filed: 1998-12-18
Abstract: PURPOSE: A carrier frame for a tape BGA substrate is provided to utilize common semiconductor assembly lines, and to improve yield and productivity. CONSTITUTION: A carrier frame includes a frame body(2) on which a plurality of tape BGA substrates(4) are attached by an adhesive tape(9). The frame body(2) has first windows(8) regularly formed therein and side rails(5) formed at both ends thereof. Each of the first windows(8) corresponds to both a second window(9b) in the adhesive tape(9) and a circuit part(A) of the tape BGA substrates(4). While the side rails(5) of the frame body(2) are fitted to transfer rails of common assembly lines, a common feeder can carry the carrier frame by through holes(6,7) in the frame body(2). The frame body(2), the adhesive tape(9) and the substrates(4) are all exactly aligned by respective index holes(7a,9a,4a).
Patent KR-20000010509-A (KR)
Title: Lever type hoist
Inventor: NISHIMURA YOSHAKU
IPC: B66D3/14
Filed: 1998-12-24
Abstract: PURPOSE: A lever type hoist is provided to immediately do idling without operating a working wheel for starting the idling. CONSTITUTION: The hoist has a pressure receiving member(6) that is rotated by a press drive member(7) through a pair of frictional members(8,9) that are placed on both side parts of a reverse rotating prevention ring(10) and a prevention ring. A member(7) forms a spring loading hole(71) that opens to the stylobate of a shaft direction for receiving a top end part(13d) of a coil spring(13) that is wound leftward and a second gearing groove(7e) that extends to the outside of a radial shape and opens to the stylobate of the shaft direction. The groove slants in a wind-down direction according to the access to the front face of the shaft direction.
Patent KR-20000042316-A (KR)
Title: Apparatus for fixing motor assembly of air conditioner
Inventor: KU JA YUNG
IPC: F24F13/00
Filed: 1998-12-24
Abstract: PURPOSE: An apparatus for fixing a motor assembly of an air conditioner is provided to use a leaf spring to fix a motor assembly to a fixing member with elastic force. CONSTITUTION: In fixing a motor assembly(350) to a fixing member, the motor assembly is placed on the fixing member. A housing(351) of the motor assembly is located on a recessed portion(363) and a couple of bosses(353) of first and second rotary shafts are positioned on each recessed portions. The end of a first member(372) is hung to a first curved portion(361a) of a first hanging portion(361). A connecting member(374) of a leaf spring(370) is contacted with the boss, and a rubber packing(354) is mounted between the connecting member and the boss. After that, a second member(376) is pushed in an arrow direction(375) and the force is delivered to the connecting member through the second member. Therefore, the connecting member pushes the boss of the motor assembly with elastic force.
Patent KR-20000044461-A (KR)
Title: Receiver for radio of wireless terminal
Inventor: SEO HO SU
IPC: H04B1/40
Filed: 1998-12-30
Abstract: PURPOSE: A receiver for a radio of a wireless terminal is provided to has a radio frequency(RF) circuit, a tuning circuit, and etc, and to hear the radio without a special additional device, by use of a frequency modulation(FM) demodulation routine used on an existed Advanced Mobile Phone System(AMPS) method. CONSTITUTION: A receiver for a radio of a wireless terminal comprises antenna, a radio frequency(RF) circuit, a tuning circuit, a baseband analog chip(100), and a mobile station modem(160). The RF circuit supplies the baseband analog chip(100) with a signal received by connecting to the antenna. The tuning circuit outputs a DC voltage of a regular value by a specific tuning control signal, to supply the baseband analog chip(100). The baseband analog chip(100) converted into a frequency modulation(FM) mode by a specific mode conversion control signal, and detects a specific frequency elements which oscillated by the DC voltage, from a signal supplied from the RF circuit. The MSM generates the tuning control signal and the mode conversion control signal, and then receives a specific frequency element detected by generating the DC voltage through the tuning circuit(100), to convert into a pulse modulation signal.
Patent KR-20000044664-A (KR)
Title: Flash eeprom programmable by byte
Inventor: LEE SEUNG HO
IPC: G11C16/00
Filed: 1998-12-30
Abstract: PURPOSE: A programmable flash EEPROM(electrically erasable and programmable ROM) is provided to program data in a memory cell by byte unit while reducing the size of the memory cell. CONSTITUTION: A flash EEPROM includes unit sectors(140) containing a memory cell programmed in response to an input address signal. A program controller by the byte(110) selects the unit sector including the memory cell corresponding to the input address signal. The program controller outputs a reading/writing signal(170) to a temporary storing unit(120) and to the unit sectors. An address converter(100) converts the input address signal for outputting the signal to the temporary storing unit. The temporary storing unit stores the data from the unit sectors in reading and stores the input data by the byte according to a writing signal from the program controller in modifying. And, the temporary storing unit outputs the stored data to the unit sectors in response to a writing control signal in writing. A reading/modifying/writing control unit(130) outputs a reading signal(180) to the temporary storing unit and outputs a writing signal(190) to the unit sectors after the temporary storing unit completes the storage.
Patent KR-20000045213-A (KR)
Title: Method of operating base station for compensating path delay between cdma mobile communication base station and mobile phone
Inventor: JUNG JAE HUN
IPC: H04B1/707
Filed: 1998-12-30
Abstract: PURPOSE: A method of operating a base station, when fixed path delay factor between a base station of CDMA mobile communication system and a mobile phone exists is provided to compensate the narrowing of the cell communication range. CONSTITUTION: When using system standard clock, the following method are used: even second clock, which is synchronized to the 1PPS(Pulse Per Second) received from GPS(Global Positioning System) receiver, is used for right direction channel from base station to mobile phone. But, for reverse direction channel, the even second clock is delayed to use, as long time as maximum wave delayed time of both direction of transmission time. Or receive undelayed even clock from system in base station and use the clock for right direction by timing compensating register in modem ASIC(Application Specific IC), and use undelayed clock for reverse direction.
Patent KR-20000045907-A (KR)
Title: Method of forming plug of semiconductor device
Inventor: KIM CHAE SEONG
IPC: H01L21/28
Filed: 1998-12-30
Abstract: PURPOSE: A method of forming a plug is to increase a contacting surface area between the plug and a wiring. CONSTITUTION: A field oxide film(12) is formed on a substrate(10), and a semiconductor device is formed an active region of the substrate. An interlayer insulated film(14) is formed in a front surface of the substrate to electrically insulate a wiring to be formed on the semiconductor device, By selectively etching the interlayer insulated film, a contact hole is formed in the interlayer insulated film, the contact hole having an opened upper surface of an active region. A conductive material is deposited on the whole surface of the interlayer insulated film to fill the contact hole. The conductive material is grinded to form a plug(18) connected to the active region of the semiconductor device through the contact hole. The plug and the interlayer insulated film are deposited with an adhering film(20) of a conductive material. A photoresist pattern is formed on the adhering film, and the adhering film is patterned to form an adhering film pattern(20').
Patent KR-20000045973-A (KR)
Title: Clutch disc
Inventor: KIM DONG LYEOM
IPC: F16D13/64
Filed: 1998-12-31
Abstract: PURPOSE: A clutch disc is provided to increase a rotation stroke of a clutch plate, and to absorb a shock and a vibration resulted from an engine. CONSTITUTION: A clutch disc comprises: a clutch plate (10) to be combined between a cushion plate (30) and a retaining plate (20); a couple of play grooves (11) to be formed on the surface of the clutch ; a spring for a damper (50), to be arranged in a wing part (12) between the play grooves; a curved part (21) to be extended and curved with uniform intervals in the outer edge of the retaining plate; a rivet (23) to fit the end of the curved part with the outer edge of the clutch plate.
Patent KR-20000046639-A (KR)
Title: Sealing structure of air in and out scroll air compressor
Inventor: CHOI YEONG MIN
IPC: F04C18/02
Filed: 1998-12-31
Abstract: PURPOSE: An air in and out scroll air compressor is provided to give durability to members for sealing a fixing scroll and the outermost part of a rotary scroll, to prevent the abrasion of a dust chamber and to improve a sealing effect by smoothly reacting in an operation situation of a scroll compressor. CONSTITUTION: By starting compression, the air in a compression chamber is discharged to a vent hole(7). At the same time, a small amount of compressed air is flowed in a seal groove(9) from a compression chamber through air passages(34,34a) and a connection pipe(34b) so that an elastic tube(30) is expanded. The expansion of the elastic tube is changed corresponding to the compression pressure of a compressor. When the compression pressure is high, a dust chamber(10) is elastically supported with more expansion force. On the other hand, the dust chamber is elastically supported with less expansion force. Therefore, a force more or less than necessary is not given to the dust chamber so that the dust chamber is not easily abraded or leakage is not generated.
Patent KR-19990029072-A (KR)
Title: 내부 원자 측정 방법
IPC: G01Q10/04
Filed: 1997-05-20
Abstract: 주사 터널링 현미경, 원자력(atomic force) 현미경, 또는 커패시턴스 또는 자기장 탐지 시스템 등에서 이용되는 감지 탐침의 향상된 나노미터 규모 위치 데이터를 실시간 그리고 연속적으로 만드는 방법 및 장치가 개발되었다.  이는 탐침에 대하여 상대적으로 움직이는 격자 등의 주기적인 파형을 가진 표면 또는 원자 표면에서 상대적인 탐침 거리와 위치를 측정하기 위한 것이다.  탐침과 표면 사이에는 싸인형 전압의 제어 하에 탐침이 빠르게 진동함으로써 감지장(sensing field)이 존재하게 되고, 감지장의 전류에 의하여 생성된 싸인형 출력 전압의 위상 그리고/또는 진폭을 비교하여 가장 가까운 원자 또는 표면 파형의 정점에서의 거리와 방향을 나타내는 위치 신호를 얻게 된다.  필요한 경우, 그 위치 신호를 되먹임하여 탐침과 표면의 상대 운동을 제어할 수 있다.  다음의 하나 또는 모두를 통하여 향상된 운전 성능이 얻어진다: 탐침을 구동하는 싸인형 전압과 실제 탐침의 진동 위치 사이의, 특히 탐침의 고유 주파수 가까이에서, 위상 지연에 의해 생기는 오차를 제거하여 속도, 주파수 응답, 신뢰도를 향상시킴; 탐침과 표면의 충돌 또는 다른 탐침-대-표면 간격 제어의 문제점을 방지함; 절대 위치 측정이 가능함; 특히 모노리식 결정 웨이퍼 구조에서, 단- 또는 다-탐침의 마이크로 가공의 향상된 설계.
Patent KR-19990036282-A (KR)
Title: 자동차의 압축 공기 생성용 압축기와 같은 피스톤형 압축기
IPC: B62D25/12
Filed: 1996-06-19
Abstract: 본 발명에 따른 자동차의 압축 공기 생성용 압축기와 같은 피스톤형 압축기에서는, 실린더와 실린더 헤드의 사이에 클램핑되어 압축기의 피스톤과 대면하는 흡입판(1)이 밸브 지지체의 하측면에 조립된다.  흡입판(1)은 가동부(3)와 비가동부(5)로 이루어진다.  중앙에 배치된 설형 가동판으로서 형성되는 것이 바람직한 가동부(3)는 밸브 지지체에 있는 흡입 개구부(19)에 대해 작용하는 반면에, 비가동부(5)는 밸브 지지체에 있는 하나 이상의 송출 개구부(11)와 연계하여 작용하는 하나 이상의 송출 개구부(9)를 구비한다.  흡입판은 원판형으로 형성되고, 그에 따라 손실 공간이 실질적으로 제거된다.  흡입판은 추가의 부품을 필요로 함이 없이 실린더와 밸브 지지체의 사이에 끼워 맞춰질 수 있다.  흡입판은 에너지 절감 시스템에 사용될 경우에는 흡입 개구부와 송출 개구부의 상하 겹쳐짐의 정도를 상이하게 만들도록 회전될 수 있다.
Patent KR-19990071972-A (KR)
Title: 카드된 섬유를 에어레이에 공급하는 공정
IPC: D01G15/46
Filed: 1996-12-05
Abstract: 본 발명은 카드된 섬유를 에어레이(11)로 공급하는 공정에 관한 것으로서, 특히 카딩 기술과 에어레이 기술을 조합하는 것에 관한 것이다.  본 발명에서, 카딩 장치부(12)는 섬유를 카드하도록 배열되고, 에어레이부에서의 분산기 롤(50)은 개개의 카드된 섬유를 추출하여 기류를 통해 원심상으로 벗겨낸다.  본 발명에 의해, 에어레이는 종래의 에어레이 장치가 조작 또는 만족스럽게 개방할 수 없었던 더 긴 섬유 길이를 조작할 수 있다.  본 발명은 섬유를 카딩 장치로부터 벗겨내어 카딩 장치로부터 섬유를 원심상으로 벗겨내는 개선된 공정으로 고려될 수 있다.
Patent KR-19990076916-A (KR)
IPC: A61K31/7064
Filed: 1996-12-26
Abstract: Adenosine and xanthine deriviatives, and compositions comprising those compounds, are potent selective agonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias.
Patent KR-19990082581-A (KR)
Title: 에폭시화 블록 공중합체의 제조방법
IPC: C08F8/08
Filed: 1996-02-16
Abstract: 본 발명은 고무상중합체 그렇지 않으면 수지상중합체의 개질제 또는 개질조제, 접착제, 밀봉제 등에 적합한 에폭시화 블록 공중합체의 제조방법에 관련된다. 
     본 발명의 에폭시화 블록 공중합체는 비닐방향족 탄화수소 화합물을 주체로 하는 중합체블록(A)과 공액디엔 화합물을 공액디엔 화합물을 주체로 하는 중합체블록(B)으로 이루어지는 블록 공중합체 또는 그의 부분수첨물을 에폭시화하여, 합성한 에폭시화 블록 공중합체(C)의 유기용제 슬러리 또는 유기용제 용액을 계면활성제의 존재하에 스팀 스트리핑함으로써 중합체의 회수를 행하는 것을 특징으로 한다. 
     계면활성제는 비이온성 계면활성제인 것이 바람직하고, 특히, 일반식 HO(C 2 H 4 O) a (C 3 H 6 O) b (C 2 H 4 O) c OH(여기서 a, b, c는 어느 것이나 1 내지 1,000의 숫자를 나타낸다)로 표시되는 평균분자량이 3,000 내지 20,000, 폴리옥시에틸렌 함량이 20 내지 90중량%인 계면활성제가 바람직하다. 
     본 발명에 의하면, 반응용액에서 제조물인 에폭시화 블록 공중합체의 회수가 용이하고, 게다가 장시간의 열이력을 주지 않는다.  이 때문에, 에폭시기의 개환을 방지할 수 있고, 동시에 탄성 및 에폭시 화합물의 특징을 구비한 에폭시당량을 갖는 에폭시화 블록 공중합체를 얻을 수가 있다.
Patent KR-19990087595-A (KR)
Title: 플래시 방사 방법 및 플래시 방사액
IPC: D01D5/11
Filed: 1997-03-06
Abstract: 본 발명은, 염화메틸렌 및 1,2-디클로로에틸렌으로 이루어진 군으로부터 선택된 주용매, 및 조용매의 용액으로부터 방사하는 것을 포함하는 플렉시필라멘트상 생성물의 제조 방법, 및 염화메틸렌, 및 1,2-디클로로에틸렌으로 이루어진 군으로부터 선택된 주용매, 및 조용매에 용해된 폴리올레핀의 방사액에 관한 것이다.
Patent KR-20000005209-A (KR)
Title: Jib projection of crane and device and method for isolate-storing
Inventor: ASANO KAZUYOSHI
IPC: B66C23/66
Filed: 1997-04-02
Abstract: PURPOSE: A jib projection of a crane and a device and a method for a hangar are provided to easily attach and detach a subsidiary hook without moving with carrying the subsidiary hook and a wire rope. CONSTITUTION: A jib projection and a hangar device of a crane comprises:a front end sheave(23) being attached removably in the lower end of the front of a boom(3); a rotary moving apparatus(80) for rotatively moving a rotary bracket(30); and a link(124) connecting the upper unit of the front end of the boom with the front end sheave for freely moving rotatively for locating the front end sheave to the upper unit of the front direction of the boom while the rotary bracket advancing to the front direction of the boom.