baber/WOPTO huggingface dataset:
Patent KR-20000052085-A (KR)
Inventor: SHIN CHEONG SIK
IPC: B66B1/18
Filed: 1999-01-29
Abstract: PURPOSE: A device and a method are provided to control group management of an elevator for reducing a waiting time and increasing traveling efficiency on a heavy floor. CONSTITUTION: A hall controller contains an input unit(301) and an indicating unit(302). A controller receives the number of elevators from passengers and registering information of a lifting call. Then register and cancel of the lifting call are processed and prediction of the lifting and a registering button are processed. After that, the controller processes the position of a car, car call registering information, a door state and a traveling direction. The controller operates predicted time that the car reaches to each floor and allots cars for the lifting call. Finally, the controller outputs all kinds of information through the indicating unit.
Patent KR-20000055218-A (KR)
Inventor: HWANG WON TAE
IPC: H01L21/8242
Filed: 1999-02-04
Abstract: PURPOSE: A method of manufacturing a capacitor is to increase area on which a dielectric film is capable of growing on a lower electrode layer, without raising a vertical step on a substrate, thereby implementing desired capacitance. CONSTITUTION: A method of manufacturing a capacitor comprises the steps of: forming an isolation layer(110) on an upper surface of a semiconductor substrate(100); etching the isolation layer to form a contact hole(113) exposing a conductive area of the substrate; sequentially forming a conductive layer and a anti-reflective layer on an upper portion of the resultant having the contact hole provided therein; forming a photoresist pattern to define a lower electrode layer(126) on an upper portion of the anti-reflective layer; etching the conductive layer while adhering polymer to a side wall of the photoresist pattern using the anti-reflective layer, under the etching condition of having no etching selection ratio against the photoresist pattern, to thereby form the lower electrode layer with wrinkle profile; and removing the photoresist pattern, the polymer and the anti-reflective layer.
Patent KR-19990072582-A (KR)
Title: 장방형으로화상을형성하기위한조정이용이한화상형성장치와이를제작하는방법
IPC: H04N1/12
Filed: 1999-02-11
Abstract: 화상형성장치는 광전도체,광빔을 방사하는 광원, 잠상을 형성하기 위하여 상기 광원으로서 상기 광전도체의 표면을 주사하도록 상기 광전도체의 표면상으로 상기 광원으로부터 방사되는 광빔을 안내하는 스캐닝장치를 포함한다. 상기 광원과 스캐닝장치가 장착되는 하우징은 스테이에 의해서 지지되고, 상기 하우징은 상기 스테이를 통하여 상기 장치의 본체에 장착된다. 상기 하우징은 상기 광전도체의 표면이 이동하는 방향에 관련된 상기 광빔의 주사방향의 각도가 거의 직각도로 있도록 조정하기 위하여 지지되고, 이것에 의해서 화상은 상기 하우징을 회전시키는 것으로서 장방형으로 형성되어진다.
Patent KR-20000055916-A (KR)
Inventor: KIM TAE HWAN
IPC: H04N7/16
Filed: 1999-02-11
Abstract: PURPOSE: An apparatus for controlling screen display depending on a program rate in picture in picture mode and a method thereof are provided to control the display of the main/auxiliary screen at the same time. CONSTITUTION: An apparatus for controlling screen display depending on a program rating in picture in picture mode includes a switch(206), a controller(207), a main screen signal processor(209), a PIP signal processor(210), and a multiplexor(211). The switch(206) receives the main video signal, and an auxiliary video signal and switches the main/auxiliary screen video signal according to a PIP switching control signal. The controller(207) receives the main/auxiliary screen video signal, extracts and stores the program rating data, compares the preset watch rating(Go) with a main/auxiliary program rates(Gm/Gs), and generates a main/auxiliary screen block control signal, the PIP switching control signal and the multiplexor control signal. The main screen signal processor(209) blocks the output when the main screen block control signal is input. The PIP signal processor(210) blocks the output when the auxiliary screen block control signal is input. The multiplexor(211) selects one input signal according to the multiplexor control signal.
Patent KR-19990072608-A (KR)
Title: 연소장치
IPC: F24C3/10
Filed: 1999-02-12
Abstract: (과제) 전지의 잔존수명이 적어졌을 때에 확실하게 전지의 교환을 재촉하는 경보를 하는 연소장치를 제공한다. 
     (해결수단) 
     점화수단(26)과, 전지(13)의 전압을 검출하는 전지전압 검출회로(41,48)와, 전지(13)를 전원으로 하여 연소부의 작동을 제어하며 전지(13)의 전압이 제 1 기준전압 이하로 되었을 때에 경보수단(24)을 작동시키는 제어회로(14)와, 전지(13)의 전압이 상기 제 1 기준전압보다도 낮은 제 2 기준전압 이하로 되었을 때에 제어회로(14)의 작동을 금지하는 작동금지회로(15)를 구비한 연소장치에 있어서, 전지(13)의 전압이 상기 제 2 기준전압 이하로 되었을 때에, 제어회로(14)에 전압저하신호를 계속해서 출력하는 전압저하신호 출력회로(16)를 설치하고, 제어회로(14)는 작동금지회로(15)에 의한 작동 금지가 해제되어 작동을 재개할 때에 상기 전압저하신호의 출력 유무를 확인하고, 이 전압저하신호가 출력되었을 때에는 경보수단(24)을 작동시킨다.
Patent KR-20000056265-A (KR)
Inventor: YOON IN CHUL
IPC: F25D17/08
Filed: 1999-02-18
Abstract: PURPOSE: A cool air passage of a freezing chamber in a refrigerator is provided to minimize a discharged counter current of cool air by optimizing the gap between a fan and a grill with reducing the generation of a warm current, thereby reducing the noise. CONSTITUTION: In a freezing chamber including a ventilating fan rotating by receiving the transmission of the driving power of a fan motor formed in the rear part of the freezing chamber, a shroud(500) forming an orifice part(510) to discharge cool air through the ventilating fan, and a grill(700) installed between the shroud and the inner surface of the freezing chamber for forming a cool air passage(600), the cool air passage structure is formed not to widen the gap between the grill and the shroud over 30mm for preventing a warm current generated between the grill and the shroud.
Patent KR-20000060143-A (KR)
Inventor: KIM MIN YONG
IPC: F25D17/06
Filed: 1999-03-12
Abstract: PURPOSE: A side-by-side configuration refrigerator and a method for controlling the supply of cool air are provided to maintain the set temperature and the freshness on the whole. CONSTITUTION: A method for controlling the supply of cool air for a side-by-side configuration refrigerator including a freezing chamber(50) and a refrigerating chamber(60) divided by a vertical barrier, and passages(56) respectively installed in the upper part and the lower part of the refrigerating chamber for supplying the refrigerating chamber with cool air, wherein the method for controlling the supply of cool air includes the steps of supplying one side of the upper part and the lower part of the refrigerating chamber with cool air through the passage in initial stage of supplying the refrigerating chamber with cool air, and supplying the other side of the upper part and the lower part of the refrigerating chamber with cool air if the temperature of the upper part or the lower part of the refrigerating chamber satisfies the set temperature.
Patent KR-19990078114-A (KR)
Title: 무선 통신 시스템에서의 주파수간 핸드오프 방법 및 장치
IPC: H04W36/14
Filed: 1999-03-22
Abstract: CDMA 또는 다른 무선 통신 시스템에서의 주파수간 핸드오프(inter-frequency handoffs)는 시스템에서 동일 주파수 셀 경계들과 다른 주파수 셀 경계들 사이를 구별할 수 있는 노이즈-제한된 커버리지 트리거 메트릭을 사용하여 제어된다.  트리거 메트릭은 신호 대 잡음비 측도들의 선형 합과 시스템의 이동 스테이션에서 수신된 파일럿 신호들에 대한 평균 신호 대 잡음비 측도의 함수로서 발생될 수 있다.  신호 대 잡음 측도들은 이동 스테이션에서 발생될 수 있으며, 이동 스테이션으로부터 시스템의 하나 또는 그 이상의 베이스 스테이션들로 송신된 메시지들에 포함될 수 있다.  트리거 메트릭은 진행하는 호출(ongoing call)중에 현재 주파수로부터 새로운 주파수로의 핸드오프(handoff)를 제어하는데 이용된다.  트리거 메트릭은 대안적으로 이동 수신 전력의 측도 만을 기초로할 수 있다.  본 발명의 다른 점들은 새로운 주파수에 대한 불필요한 조사를 줄이고, 핸드오프 프로세스에 추가적 검사를 제공함으로써 현재 주파수로부터 새로운 주파수로의 "왕래(ping-ponging)"의 가능성을 축소시킨다.  실례로, 수신 전력 및 파일럿 신호 대 잡음비 측도들은 현재 및 새로운 주파수 모두에 대해 이동 스테이션에서 발생될 수 있다.  그래서, 이동 스테이션은 상기 측도들에 기초한 임의의 소정 임계 상태들이 만족되는 한 현재 수파수에서의 동작을 지속한다.
Patent KR-20000065593-A (KR)
Inventor: CHOI JEONG SIK
IPC: H04Q1/20
Filed: 1999-04-07
Abstract: PURPOSE: A method for outputting maintenance obstacle items in a switch is provided to easily grasp an obstacle of the switch by describing history and statistic outputs to an obstacle process data generated in the switch as one output type. CONSTITUTION: If an operator requests a MMC(man machine communication) or a periodic output(501), an obstacle process block discriminates an output request data time(503). If the output request data time is a data request according to a time, the obstacle block discriminates as to whether outputting data are stored in a buffer(505). If outputting data are stored in the buffer, the obstacle process block controls the buffer to move contents of the buffer to a "HOUR_buffer_file" of a disk and clears contents stored in the buffer(509). The obstacle process block searches the "HOUR_buffer_file" and extracts a corresponding obstacle item data(511). If the output request data time is one day data request, the obstacle process block searches a "DAY_file" of the disk and extracts a corresponding obstacle item data.
Patent KR-19990087894-A (KR)
Title: 반도체도핑방법
IPC: H01L21/8238
Filed: 1999-04-08
Abstract: 본 발명은 매우 좁은 폴리실리콘 게이트를 통하여 게이트 유전체 계면에 이를 때까지 강도핑하면서 동시에 매우 얕은 소스 드레인 확장부를 형성하는 방법에 관한 것이다.    또한, 본 발명은 이러한 방법에 따라 형성된 반도체에 관한 것이다.
Patent KR-20000065850-A (KR)
Inventor: LEE MI GYEONG
IPC: H04Q5/00
Filed: 1999-04-09
Abstract: PURPOSE: A method for processing an intelligent network trigger based on a subscriber or a group in a switch system is provided not to continuously output an inquiry to a SSF(service switching function) intelligent network or a trigger signal for discriminating a call of an intelligent network by storing a database based on the subscriber and the group in a CCF(call control function) of the switch system. CONSTITUTION: In the case that a receiving number is stored in a DP2(detection point 2), a CCF performs a preliminary trigger(418). In the case that the receiving number is not stored in the DP2, the CCF stores receiving number DP information in DP information of a subscriber(420). The CCF checks as to whether the preliminary trigger is performed in a current progressing call(422). The CCF checks as to whether a DP3 is arming(424). In the case that the DP3 is arming, the CCF checks as to whether the preliminary trigger is performed through stored information(426).
Patent KR-20000066006-A (KR)
Inventor: KIM HYANG YUL
IPC: G02F1/136
Filed: 1999-04-12
Abstract: PURPOSE: A fabrication method of high aperture rate and high transmissibility LCD is provided to decrease the number of mask processes to shorten time required to the process and enhance productivity. CONSTITUTION: A fabrication method of high aperture rate and high transmissibility LCD comprises steps of: depositing a transparent conductive film on a substrate and patterning a portion of the film to form counter electrodes; forming gate bus lines, common electrode lines and gate pads; defining a TFT area; forming source and drain electrodes on the area and forming data pads; forming an insulation layer and opening the data pads and gate pads; and forming a transparent conductive film and patterning a portion of the film to form pixel electrodes.
Patent KR-20000066384-A (KR)
Inventor: KWON GI SEONG
IPC: G02B27/18
Filed: 1999-04-16
Abstract: PURPOSE: A method for measuring variation of a sigma value in an optical light system is provided to measure accurately a sigma value by using a knife edge blade and a photo diode. CONSTITUTION: A method for measuring variation of a sigma value in an optical light system comprises the steps of: forming a lamination structure of a knife edge blade and a sensor on an upper portion of a reticle; fixing a Y direction blade(21) of the knife edge blade, opening an X direction blade(23) of a close status, and measuring the amount of irradiation according to a light source; measuring a distance between the X direction blades and a distance between the Y direction blades; and measuring a signal value by dividing the distance between Y direction blades into the distance between the X direction.
Patent KR-19990046785-A (KR)
Title: 가상정보기술교육장치와방법
Filed: 1999-04-24
Abstract: 본  발명은  향후에도  수요가  급증할  것으로  예상되는  정보기술(Information Technology)의 원격교육 시스템에 관한 것으로서, 더욱 상세하게는 PowerBuilder와 Java등을 포함한 정보기술을 원하는 수요자는 누구나 인터넷(internet)을 통해서 시간과 공간을 초월하여 언제 어디서나 손쉽게 정보기술을 습득할 수 있는 원격교육시스템에 관한 것이다. 
     이를 위하여  본 발명은 정보기술을 교육하기 위해 '영상'과 '인터넷노트'기반의 강의 내용과  「나래이션 기능」 을 탑재한 서버 장치와, 나래이션 청취를 위한 오디오 장치와 서버에 접속할 수 있는 브라우저 및 Flash를 탑재한 사용자 시스템, 그리고 서버와 사용자를 연결해 주는 인터넷으로 이루어지는 것을 특징으로 한다. 
     또한, 본 발명은 효율적 교육을 위해, 본 발명의 개략과 각 정보기술의 개요 및 활용방법등을 제공하는 맛보기 단계, 본 발명에서 제공하는 정보기술의 각 과정에 처음으로 입문하는 사용자를 위한 걸음마 단계, 걸음마과정을 통해 본 발명에서 제공하는 정보기술의 초보자 양성과정을 마친 후, 보다 더 깊이있게 정보기술을 이해할 수 있도록 하기 위한 이해 단계, 그리고, 서버를 통해 일방적으로 교육받는 이해단계 이후의 효율적인 교육을 위해 서버의 교육 내용을 보면서 사용자가 직접 따라해 보는 견습단계, 견습단계까지를 통해 본 발명에서 제공하는 정보기술에 익숙해진 사용자가 정보기술을 마스터할 수 있도록 하기 위한 연습 문제 위주의 마스터 단계로 구성된 교육방법을 제공한다는 데 특징이 있다.
Patent KR-20000074511-A (KR)
Inventor: PARK JONG U
IPC: H01L27/08
Filed: 1999-05-21
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to guarantee an adequate process margin without an additional photo etch process in forming a selective silicide layer of a merged dynamic random access memory and logic(MDL). CONSTITUTION: A gate electrode(104) with a spacer(106) is formed on a semiconductor substrate(100). An active region for a source/drain is formed in the substrate on both edges of the gate electrode. An etch stop layer(108) and an insulating layer(110) for a silicide blocking layer(SBL) are sequentially formed on the resultant structure. A part of the insulating layer is etched to have the insulating layer with a predetermined thickness on the gate electrode. The first photoresist layer pattern is formed in a dynamic random access memory(DRAM) cell formation portion to open a logic formation portion. The insulating layer and etch stopper layer are sequentially etched by using the first photoresist layer pattern as a mask, and the first photoresist layer pattern is eliminated. The second photoresist layer pattern is formed in the logic formation portion on the substrate to open the DRAM cell formation portion. After the insulating layer is etched by using the second photoresist layer pattern as a mask to expose the surface of the etch stopper layer in an upper part of the gate electrode, a surface exposing portion of the etch stopper layer is eliminated. Impurities are injected into the gate electrode in the DRAM cell formation portion, and the second photoresist layer pattern is eliminated.
Patent KR-20000074663-A (KR)
Inventor: YOON CHONG YEOL
IPC: F16H59/04
Filed: 1999-05-25
Abstract: PURPOSE: A wrong backup arrester of a manual transmission for a vehicle is provided to make the guide case of the transmission compact by reducing the number and the size of components. CONSTITUTION: A wrong backup arrester(4) forms a cylindrical inner guide case(51) forming many steps(52) outside and an outer guide case(53) integrally installing an upper and a lower stoppers(57,57') with the inner guide case to limit the operation of a cam(54) for preventing backward mis operation of the manual transmission. A disc type fixing plate(55) is installed to fix the arrester cam. A torsional spring(58) is formed in the outer guide case by a fixing shaft(59) for the one way rotating restoring force of the cam. The cam forms an operating groove(60) to be supported by the torsional spring. The other end of the cam is fixed by the fixing plate.
Patent KR-20000005712-A (KR)
Inventor: KELLILICHADAELLEN
IPC: G06F13/40
Filed: 1999-05-25
Abstract: PURPOSE: A device has a control structure activating peripheral component interface(PCI) bus so as to operating at least two PCI slots in which PCI device is installed. CONSTITUTION: The device is realized in an information processing system. The information processing system comprises a CPU device(101); a system bus connected to the CPU device(101); a device bus; a bridge circuit(109) for connecting the system bus and the device bus, wherein the device bus is connected to a plurality of connection slots(117, 119, 127, 129) which are arranged to selectively provide a connection of the circuit device to the system bus; a first detector connected to the connection slot, the first detector checking whether any one of the connection slots has the circuit device; a second detector connected to the connection slots, the second detector detecting a frequency in which the circuit device operates; and a clock controller(223) connected to the first and second detector and the connection slot, for selectively supplying one of first and second clock signals to the circuit device in response to an output from the first and second detectors.
Patent KR-20010001413-A (KR)
Inventor: LEE GEUN YEONG
IPC: H04L12/66
Filed: 1999-06-04
Abstract: PURPOSE: A method for calling a server object application from a client application in a distributed object system is provided to make a client call a remote object as if the remote object is a self local object under a distributed object system environment, so that a server can support uniform multi-client requests by using an object list and a multi-threaded system to make the client call a correct remote object. CONSTITUTION: A client stores a call-ready object in an object list of a server among many objects of the server, after the server is driven. The client transmits a remote object call message to the server. The server searches the call-ready object requested by the client, and generates a thread for controlling an object calling. The server performs the object calling to transmit a result to the client.
Patent KR-20000006226-A (KR)
Inventor: BRAGANTERATAN CHIO
IPC: C07C19/08
Filed: 1999-06-16
Abstract: PURPOSE: A manufacturing process for obtaining a CF3-CHF-CF3(227ea) is provided to contain a high yield rate and selectivity by using a special catalysis and a perfluoropropene hydro-fluorinating process in a vapor containing under 0.05 wt% of the perfluoropropene amount at the end of a reaction. CONSTITUTION: A perfluoropropene hydro-fluorinating process in a gaseous body for obtaining a CF3-CHF-CF3(A-227ea) comprises: using a fluorinated alumina containing 90 wt% of AIF3 at least as a catalysis; a molecular ratio of the HF/PFP reaching to 4:1 or 20:1; 1¯30 absolute atmosphere of a supplying gaseous body pressure; and 320-420°C for the hydro-fluorinating processing temperature.
Patent KR-20010004471-A (KR)
Inventor: CHOI HO YEOL
IPC: D21H19/10
Filed: 1999-06-29
Abstract: PURPOSE: The titled latex prepared by forming a styrene-butadiene-based latex in a triple structure of a seed having the highest gel content, a first shell having the lowest gel content and a second shell having a medium gel content is provided, which has proper adhesion and balanced printability and obtains excellent and balanced physical properties as compared to a latex having a gel content of a single structure. CONSTITUTION: The latex comprises a seed having a gel content of 80 to 95% and containing 35 to 70 parts by weight of styrene, 30 to 55 parts by weight of butadiene, 0.5 to 10 parts by weight of acrylonitrile, 1 to 15 parts by weight of methylmethacrylate, 1 to 15 parts by weight of itaconic acid and 1 to 8 parts by weight of acrylic acid, a first shell having a gel content of 35 to 60% and containing 40 to 75 parts by weight of styrene, 23 to 55 parts by weight of butadiene, 1 to 8 parts by weight of acrylonitrile, 1 to 8 parts by weight of methylmethacrylate, 0.5 to 10 parts by weight of itaconic acid and 1 to 20 parts by weight of acrylic acid and a second shell having a gel content of 60 to 80% by weight and containing 35 to 70 parts by weight of styrene, 30 to 65 parts by weight of butadiene, 1 to 8 parts by weight of acrylonitrile, 1 to 8 parts by weight of methylmethacrylate, 1 to 5 parts by weight of itaconic acid and 1 to 15 parts by weight of acrylic acid.
Patent KR-20010008527-A (KR)
Inventor: LEE GI JEONG
IPC: H01L27/108
Filed: 1999-07-01
Abstract: PURPOSE: A method of manufacturing a capacitor having TaON thin film is to achieve high capacitance by using an amorphous TaON having a good affinity for the surface of a wafer under 500 deg.C. CONSTITUTION: A contact hole of an interlayer insulating layer(20) is formed on a substrate(10) having a semiconductor device. The contact hole connects the junction region of dopants with a bottom electrode(30) consisting of a doped poly silicon layer. The dielectric thin layer of the amorphous TaON(32) is formed on the bottom electrode on the substrate under 500 deg.C. A top electode(34) consisting of a doped polysilicon layer is formed on the amorphous TaON layer(32).
Patent KR-20000022660-A (KR)
Inventor: OSBON RICHARD D
IPC: G05B15/02
Filed: 1999-07-05
Abstract: PURPOSE: A processor based process control system is provided to reduce the number of hardware parts necessary to a process control system by increase a processing power. CONSTITUTION: A processor based control system of a plastic injection molding machine performs a plastic injection molding process, and comprises an I/O bus network and a computer. The I/O bus network has a plurality of I/O modules which are connected to corresponding I/O devices(24) coupled with the plastic injection molding machine. The computer(60) comprises an I/O bus controller directly connected to the I/O bus network, a real-time operating system(72) and a processor(70) for executing a plastic injection molding control program for controlling the plastic injection molding process.
Patent KR-20010009173-A (KR)
Inventor: JUNG SEOK WON
IPC: B29D12/00
Filed: 1999-07-08
Abstract: PURPOSE: Provided are a process for producing a high accurate microlens of various shapes by using X-ray lithography and a process for producing a die for injecting the microlens. CONSTITUTION: The process for producing the microlens(40) comprises the steps of: forming PMMA or a photosensitive film on a substrate(11); arraying an X-ray mask(20) and the substrate(11); exposing the substrate(11) by using the X-ray mask(20); eliminating the exposed PMMA or photosensitive film by using a developer; arraying the X-ray mask(20) and the rotary shaft(30) of the substrate(11); fixing the X-ray mask(20) and rotating the substrate(11) and exposing the substrate(11) in order to form the geometric shapes according to the shapes of absorbed bodies(21) on the X-ray mask and the position of the rotary shaft(30); eliminating the exposed PMMA or photosensitive film by using the developer to develop the geometric shapes.
Patent KR-20000011856-A (KR)
Title: Optical information medium
Inventor: SEGI SIRYOU
IPC: G11B7/24091
Filed: 1999-07-21
Abstract: PURPOSE: An optical information medium is provided to exactly read a data signal and a sector information by removing a read error of a feet on a tracking guard indicating the data signal and a land prefeet indicating the sector information. CONSTITUTION: The optical information medium comprises a light projecting substrate(1) for projecting a record beam, a record layer(12) formed on the light projecting substrate(1), and a reflection layer(13) for reflecting a reproduction beam. An optically readable signal is recorded by a record beam incident from the light projection substrate(1). The optical information medium comprises a tracking guard(3) of a screw type in whose inside the record layer(12) of the substrate(1) is formed. A land prefeet(6) indicating a sector information such as an address of a tracking guard(3) is formed to a land(8) between the tracking guards(3). A length of the land prefeet(6) is about 50% to 80% of a minimum feet length, and is a length of 1.5 to 2.5 channel clock.
Patent KR-20010011074-A (KR)
Inventor: KIM YONG KI
IPC: B29C45/42
Filed: 1999-07-24
Abstract: PURPOSE: A takeup arm of an automatic takeup device for an injection molder is provided to correspond to a narrow mounting space by reducing the height of a mechanism remarkably through 2-step descending of an arm and to simplify the structure by rotating the arm simply. CONSTITUTION: A sleeve(19) is assembled to a primary descending plate(18) and a secondary descending plate(22) is assembled to a guide bar(20) inserted into the sleeve and a secondary descending cylinder(16) rod. A clamper(23) is mounted under the secondary descending plate. A primary descending cylinder rod is extruded down when compressed air is injected into the upper portion of a primary descending cylinder. The primary descending plate assembled to the rod descends. Then, the secondary descending cylinder, sleeve and guide bar descend by the secondary descending cylinder inserted into the sleeve.