baber/WOPTO huggingface dataset:
Patent KR-20170105655-A (KR)
Title: Muti-layer cosmetic container being easy to opening and closing
Inventor: JEON MI YEONG
IPC: B65D21/02
Filed: 2016-03-09
Abstract: The present invention relates to a multilayer cosmetic container which is easily opened and closed. According to an embodiment of the present invention, the multilayer cosmetic container which is easily opened and closed comprises: a container body (10); a container cover (50); and an opening/closing member (60). The opening/closing member (60) includes a handle (70); and a moving hook (80) which is combined with the handle (70). The present invention can improve portability and convenience.
Patent KR-20170106841-A (KR)
Title: LED light lamp hanging on the ceiling of edge type
Inventor: NAM JEONG TAN
IPC: F21V17/16
Filed: 2016-03-14
Abstract: The present invention relates to an edge type LED ceiling light. The edge type LED ceiling light consists of a combination of a stabilizer cover bracket (20) which connects and fixes both side parts by crossing a center of a lighting body (10), fixes a stabilizer (22) on a bottom surface of an upper plate (21), and forms a locking groove (24) to predetermined height and length over the upper plate (21) and a side plate (23) separated a predetermined distance from one side in the longitudinal direction and a fixing bracket (30) which screw connects on a ceiling frame (41) through a connection hole (32) at a constant interval by being penetrated along a width center on an upper plate (31) mounted on an upper part of the stabilizer cover bracket (20), and axially fixes a locking pin (34) with a diameter to be inserted in the locking groove (24) from an outer side to an inner side in the same interval with an interval of front and rear sides of the locking groove (24) of the stabilizer cover bracket (20) on a side plate (33) vertically and downwardly bent to surround the side plate (23) of the stabilizer cover bracket (20) by a predetermined height.
Patent KR-20170107210-A (KR)
Title: Controller of semiconductor memory device and operating method thereof
Inventor: Roh Young Dong
IPC: G06F9/30
Filed: 2016-03-15
Abstract: The present technology relates to an electronic device. More specifically, the present invention relates to a controller of a semiconductor memory device storing data for debug processing, and an operation method thereof. According to the present technology, the controller for controlling the semiconductor memory device comprises: an event generation sensing unit for sensing event generation by comparing an event expected value representing a state of event signals when an event and the event signal received through a plurality of event signal lines are generated; an event information generating unit for generating event information based on event data received from event data lines in response to an enable signal output by the event generation sensing unit; and a command generating unit for generating a command for storing the event information in the semiconductor memory device.
Patent KR-20160121395-A (KR)
Title: 가스곤로
Inventor: MAKINO YUSUKE
IPC: F24C3/12
Filed: 2016-03-21
Abstract: 튀김조리에서의 안전성을 담보하면서, 볶음조리에서의 편리성을 확보하는 것이 가능한 가스곤로를 제공한다. 
온도검지수단에 의한 조리용기의 검지온도가 과열방지온도에 이르면, 버너에서의 연소를 억제하는 동시에, 검지온도가 과열방지온도보다 낮은 유지온도에 이르면, 과열방지온도에 이르지 않도록 버너에 의한 가열량을 조절가능하게 한다. 그리고, 버너에 의한 가열량을 검지하는 가열량검지수단을 구비하고, 그 검지결과에 의거하여 과열방지온도를 설정한다. 이렇게 하면, 버너에 의한 가열량이 정상적으로 조절되고 있는지 아닌지를, 가열량검지수단의 검지결과에 의거하여 판단할 수 있다. 그리고, 그 판단결과에 따라서 과열방지온도를 전환함으로써, 조절불능시의 과열을 억제하여 튀김조리의 안전성을 담보하면서, 조절가능시의 강제긴급소화를 억제하여 볶음조리의 편리성을 확보할 수 있다.
Patent KR-20170110881-A (KR)
Inventor: JEONG JAE HWA
IPC: G01N21/64
Filed: 2016-03-24
Abstract: 본 발명의 실시예에 따른 2축 위치 정밀 측정장치는, 프레넬 회절을 이용하여 레이저의 변위를 측정하는 4분할 포토 다이오드를 구비함으로써 제조 비용이 저렴하면서도 2축 방향의 변위를 동시에 측정할 수 있는 2축 정밀 위치 측정장치를 제공할 수 있다.
Patent KR-20170111021-A (KR)
Inventor: JUNG EUL GO
IPC: F16H19/04
Filed: 2016-03-25
Abstract: 본 발명은 자동차 조향장치의 랙바 지지장치에 관한 것으로, 기어박스의 실린더에 삽입되어 피니언샤프트가 결합되는 랙바의 반대편을 지지해주는 서포트요크, 서포트요크를 랙바쪽으로 지지하며 실린더에 나사결합되어 서포트요크를 위치고정시키는 요크플러그, 링형상으로 형성되되 큰 직경의 이격부와 작은 직경의 탄성조절부가 원주방향의 교대로 형성되며, 서포트요크와 요크플러그 사이에 삽입되어 서포트요크를 탄성지지하는 후방 탄성부재를 포함하여 서포트요크와 요크플러그 사이가 부딪쳐 발생되는 래틀노이즈가 방지되면서 랙바와 좌우 슬라이딩시 서포트요크와의 지지력도 개선되는 효과가 있다.
Patent KR-20170113817-A (KR)
Inventor: LEE JAE CHEOL
IPC: B41J2/38
Filed: 2016-03-25
Abstract: 본 발명은 표시 장치의 제조장치를 개시한다. 본 발명은, 부재가 부양되는 스테이지와, 상기 스테이지로부터 이격되도록 배치되는 헤드부와, 상기 헤드부가 선형 운동 가능하도록 설치되는 헤드지지부를 포함하고, 상기 헤드부는, 상기 부재로 도포물질을 토출하는 복수개의 헤드와, 상기 복수개의 헤드 중 일부와 연결되며, 상기 도포물질을 상기 복수개의 헤드 중 일부로 공급하는 저장부를 포함하며, 상기 저장부에 연결되는 상기 복수개의 헤드 중 일부는 상기 저장부의 하측에 배치된다.
Patent KR-20170112150-A (KR)
Inventor: SONG MIN SOO
IPC: B23K26/064
Filed: 2016-03-31
Abstract: 본 발명은 레이저 가공 장치 및 레이저 가공 방법에 관한 것으로, 본 발명의 일 측면에 따르면, 레이저 빔을 발생시키기 위한 레이저 광원; 상기 레이저 빔을 서로 다른 편광 성분을 갖는 제1 레이저 광 및 제2 레이저 광으로 분리시키기 위한 제1 편광빔 스플리터; 제1 레이저 광과 제2 레이저 광을 결합시키기 위한 제2 편광빔 스플리터; 및 제2 편광빔 스플리터를 통과한 레이저 빔을 가공 대상물로 출사시키기 위한 출력단을 포함하는 레이저 가공 장치가 제공된다.
Patent KR-20170114753-A (KR)
Title: 수면관리장치를 이용한 온수매트
Inventor: LEE HO KYUN
IPC: A47C31/00
Filed: 2016-04-06
Abstract: 본 발명은 수면관리장치를 이용한 온수매트 및 수면관리방법에 관한 것으로서, 온수매트 내에 가속도센서 및 온도센서를 장착한 후 이를 이용하여 수면 중 발생하는 신체의 움직임 등의 수면 행동 변화를 감지 및 분석하고, 분석된 정보 데이터를 통해 온수매트의 온도를 제어하여 수면자의 최적화된 수면 환경을 제공할 수 있는 수면관리장치를 이용한 온수매트 및 수면관리방법에 관한 것이다.
Patent KR-20170117832-A (KR)
Title: 근채류 탈피장치
Inventor: KIM KYUNG BUM
IPC: B26D1/00
Filed: 2016-04-14
Abstract: 무, 당근 등과 같은 근채류의 외피(껍질)을 자동으로 쉽게 제거함으로써 탈피된 근채류의 먹을 수 있는 부분(알맹이)만을 추출할 수 있는 근채류 탈피장치가 개시된다. 본 발명의 근채류 탈피장치는, 하부 프레임 및 하부 프레임의 상측으로 연장 설치되는 상부 프레임을 구비하는 프레임부와, 상부 프레임에 설치되어 상하로 승강 작동하는 승강가압부와, 하부 프레임에 승강가압부와 대응되게 설치되고 근채류의 하단부가 삽입되게 올려지며 승강가압부가 하방으로 작동하여 근채류를 가압함에 따라 근채류의 둘레 외피를 절단하면서 탈피된 근채류를 통과시키는 절단부를 포함할 수 있다.
Patent KR-20170119112-A (KR)
Title: 웹 서버, 사용자 단말 및 이에 의한 ｑ＆ａ 컨텐츠 정보의 제공 방법
Inventor: KIM DO YOUN
IPC: G06Q30/02
Filed: 2016-04-18
Abstract: 제 1 기간 동안의 Q&A 컨텐츠에 대한 정보를 포함하는 메인 페이지를 생성하는 단계; 사용자 단말의 요청에 따라 메인 페이지를 사용자 단말로 전송하는 단계; 및 메인 페이지에 대한 사용자 단말의 선택에 따라 관련 세부 정보를 나타내는 세부 페이지를 사용자 단말로 전송하는 단계를 포함하는 것을 특징으로 하는 본 발명의 일 실시예에 따른 Q&A 컨텐츠 정보의 제공 방법이 개시된다.
Patent KR-20160051699-A (KR)
Title: A Color-Intonation Display System and Method thereof
Inventor: MOON GEE SONG
IPC: G09B5/02
Filed: 2016-04-18
Abstract: The present invention relates to a system for displaying intonation of Chinese characters in colors, and a method thereof. More specifically, intonations of Chinese characters are displayed in colors by changing the colors of the Chinese characters, whereby a user can easily and visually determine the intonations without additionally displaying an intonation on an upper side of a Chinese character or therearound after inputting the Chinese characters. In addition, a ratio of selecting intonations is reduced, compared to changing the color of each Chinese character having various intonations by distinguishing the input Chinese characters for each character and displaying the Chinese characters in colors so as to reduce times for displaying the Chinese characters in colors, or to display various intonations of a single word in parallel in a case of the single word, thereby reducing times for a user to select intonation.
Patent KR-20170119189-A (KR)
Title: 영상의 이미지 분할 인코딩 및 디코딩 시스템
Inventor: KIM YOUNG SEOP
IPC: H04N19/172
Filed: 2016-04-18
Abstract: 본 발명은 영상을 구성하는 프레임의 이미지를 일정한 간격 단위로 분할한 후, 분할된 이미지를 부호화하여 전송하는 영상의 전송 방식에 관한 인코딩 및 디코딩 시스템에 관한 것으로, 인코딩이 실시될 영상신호를 입력받는 영상입력부와, 영상신호의 프레임 별 이미지를 일정한 간격 단위로 분할하고, 분할된 이미지 각각을 하나의 필드로 정의하며, 각 필드를 부호화 하는 영상분할부와, 부호화된 복수개의 필드를 출력하는 영상전송부를 포함한다.
Patent KR-20160051701-A (KR)
Title: 차량용 핸들 커버
Inventor: KIM GYUNG JUN
IPC: B62D1/06
Filed: 2016-04-20
Abstract: 본 발명은 차량용 핸들 커버에 관한 것으로, 본 발명의 목적은 내피와 외피 사이에 미끄럼 방지부재를 삽입하여 핸들 커버를 구성함으로써 미끄럼을 방지할 수 있으며, 미끄럼 방지부재를 다르게 부착하면 내피를 공용화하면서 디자인이 다양한 제품을 용이하게 생산할 수 있도록 하는 것이다. 
이를 위해 본 발명에 따른 『차량용 핸들 커버』에 의하면; 차량의 핸들 외곽을 감싸면서 씌울 수 있도록 내부가 절결된 도넛 형상이며 합성수지로 성형된 내피(11)와; 내면에는 상기 내피(11)의 외측면 일부 영역에 둘레방향으로 부착 배치되도록 라운드 형태의 부착면(12a)이 이루어지며, 외측면 중앙부위에는 반경방향으로 돌출된 돌기부(12b)가 형성된 미끄럼 방지부재(12)와; 상기 미끄럼 방지부재(12)가 부착된 상기 내피(11)의 외측을 감싸도록 봉재 결합되는 외피(13)를; 구비하는 것을 특징으로 한다.
Patent KR-20170120877-A (KR)
Inventor: JANG YOUNG SUB
IPC: F04D29/58
Filed: 2016-04-22
Abstract: The present invention relates to a fuel pump module with improved heat dissipation performance and a method of manufacturing a fuel pump module, wherein the fuel pump module is capable of enlarging the size of a heat dissipation plate and increasing the heat dissipation capacity, by firstly installing a guide, inserting a liquid resin into the guide, and then inserting and installing the heat dissipation plate in the guide, when fixating a heat generating component provided in the fuel pump module through a potting process of injecting a liquid resin. The fuel pump module comprises: a receiving unit (100) formed with an open upper end and having a heat generating unit (110) in which heat is generated; a heat dissipating unit (200) coming into contact with the heat generating unit (110) to discharge heat generated from the heat generating unit (110); a guide unit (300) forming an insertion space (310) into which a lower portion of the heat dissipating unit (200) is inserted; and a potting unit (400) injecting a liquid resin into the receiving unit (100) to fixate the heat generating unit (110), the heat dissipating unit (200) and the guide unit (300), wherein the liquid resin is not injected into the insertion space (310) of the guide unit (300).
Patent KR-20170126115-A (KR)
Inventor: HEO JEOM SUK
IPC: B44C5/06
Filed: 2016-05-09
Abstract: A manufacturing method of a bronze sculpture according to an embodiment of the present invention includes: a step of creating a prototype of the sculpture; a step of producing a plurality of pieces of an outer frame; a step of adding a thickness formation material to the inner wall of the outer frame; a step of surrounding the reinforcing core with the pieces of the outer frame and producing a plurality of pieces of an inner frame; a step of removing the thickness formation material from the outer frame; a step of fixating the position while assembling and arranging the pieces of the outer frame on the outside of the inner frame; a step of producing the sculpture by injecting a bronze casting into a space between the outer frame and the inner frame; and a step of fixating the position of the reinforcing core at a point where the sculpture is installed and fixates a plurality of pieces of the sculpture on a position in the outside of the reinforcing core. The manufacturing method of the bronze sculpture having the reinforcing core can increase the efficiency of cost caused by adding a reinforcing structure in terms of production costs while maintaining a production form of the sculpture when an eccentric load acts on the sculpture by reinforcing the structure of the sculpture using materials vulnerable to deflection due to eccentric load like existing bronze.
Patent KR-20170126191-A (KR)
Inventor: KIM SEONG GYEONG
IPC: F21V33/00
Filed: 2016-05-09
Abstract: The present invention provides a reading desk, comprising: a book holder where a book is held while the book is unfolded; and a pair of sheet fixing bodies pressing each unfolded sheet surface of the book to prevent the book mounted in the book holder from being randomly folded or turned over. The sheet fixing body comprises a wheel member coming in contact with the sheet surface of the book to allow a user to easily turn the sheet when necessary.
Patent KR-20170130005-A (KR)
Inventor: KIM MYUNG EUN
IPC: G06Q50/00
Filed: 2016-05-17
Abstract: Embodiments of the present invention relate to a method for providing a social care service based on an IoT platform. The method for providing a social care service in a smart mirror system equipped with an IOT platform according to an embodiment of the present invention includes a step of registering user information in a web service server; a step of recognizing a user corresponding to the user information; and a step of providing at least one of health information, a message, and customized advertisement content corresponding to the user to the user, based on the user information. According to embodiments of the present invention, users at remote places can exchange various information such as photographs, health information, and messages by connecting virtual objects on the Internet as well as real objects through an IOT platform.
Patent KR-20170133540-A (KR)
Title: Composite material for reinforcement and articles comprising the same
Inventor: CHOI HAN NA
IPC: B32B7/00
Filed: 2016-05-25
Abstract: Provided is a composite material for reinforcement, comprising: a fiber stiffener including a laminate of a plurality of fiber reinforced sheets, wherein the fiber reinforced sheets have orientation; and a resin base material. The plurality of fiber reinforced sheets comprise: at least one first fiber reinforced sheet including a fiber stiffener having orientation in a first direction having an angle of + with respect to a reinforcement required direction of articles; and at least one second fiber reinforced sheet including a fiber stiffener having orientation in a second direction having an angle of - with respect to the reinforcement required direction of articles. Moreover, provided is an article comprising the same.
Patent KR-20170138166-A (KR)
Inventor: LEE SOUNG SOO
IPC: H04N5/225
Filed: 2016-06-07
Abstract: An around view monitoring system according to the present invention comprises: an image photographing unit including two or more cameras among front, rear, left, and right cameras installed around a vehicle; a memory for storing a program for correcting the tolerance of the camera; and a processor for executing the program stored in the memory. The processor detects one or more correction points from each image photographed by each camera included in the image photographing unit as the program is executed, estimates the rotation and position information of each camera corresponding to the reference coordinate system on the basis of a result obtained by projecting the correction point of the preset reference coordinate system to the position of the correction point of each image, calculates the conversion matrix between the cameras on the basis of the estimated rotation and position information of each camera, and generates a look-up table for generating a top view image on the basis of the conversion matrix. The processor generates the look-up table on the basis of the conversion matrix when the conversion matrix between the cameras satisfies a closed loop condition.
Patent KR-20170138190-A (KR)
Inventor: KIM WON TAE
IPC: F26B21/12
Filed: 2016-06-07
Abstract: The present invention relates to a tower type room-temperature and high-speed drying apparatus and a drying method thereof. According to the present invention, the tower type room-temperature and high-speed drying apparatus includes: a dryer body which is formed in the shape of a cylindrical tower and has grains input thereto; a vacuum device receiving the air in the dryer body; and a control unit which controls the vacuum device to allow the internal air pressure of the dryer body to reach a preset threshold air pressure depending on temperature, inputs the outside air to the inside of the dryer body when the moisture in the input grains is converted to water vapor after the internal air pressure of the dryer body reaches the threshold air pressure, and allows the vacuum device to suck the outside air to dry the grains until reaching a predetermined target moisture content.
Patent KR-20160146578-A (KR)
Title: A power transmission gearbox and an aircraft
Inventor: LOUIS CHARLES
IPC: B64D35/04
Filed: 2016-06-10
Abstract: The present invention relates to a power transmission (5) wherein at least one lubricating system (20) with a lubricating pump (25) is provided. The lubricating pump (25) is connected to a fluid flow circuit (30) continued to at least one spraying means (40) to enable a fluid to flow. The transmission (5) includes an emergency tank (50) proper to contain the lubricating fluid (200). The emergency tank (50) is connected to the fluid flow circuit (30) to enable the fluid to flow. The emergency tank (50) is connected to the fluid flow circuit (30) by at least one pipe (60), upward from each spraying means (40). The lubricating fluid (200) flows to each spraying means (40) from the fluid flow circuit (30) by a gas (300) sent by the lubricating pump (24) if a lubricating solution (100) is leaked. The purpose of the present invention is to provide a system capable of replacing an existing power transmission and tending to obtain a limited bulk and/or a limited weight.
Patent KR-20170140996-A (KR)
Inventor: KIM SEUNG KI
IPC: F24F6/00
Filed: 2016-06-14
Abstract: The present invention provides a vaporizing humidifier which can secure a high humidification amount while performing humidification without a heating device, an oscillator, a humidification filter, and a humidification disk. According to an embodiment of the present invention, the vaporizing humidifier comprises: a water tank; an air blowing unit generating an air flow for water stored in the water tank to be in direct contact with air; and a water rotation unit rotating the water stored in the water tank.
Patent KR-20170141996-A (KR)
Inventor: CHOI HAN YOUNG
IPC: G03F7/11
Filed: 2016-06-16
Abstract: The present invention relates to a composition for a hard mask. More specifically, the present invention relates to a composition for a hard mask, which comprises a solvent and a copolymer including a repeating unit displayed by a specific chemical formula, thereby forming a resist underlayer film (hard mask) having excellent heat resistance and coating uniformity.
Patent KR-20170143344-A (KR)
Inventor: JEONG JUN HEE
IPC: H01R13/42
Filed: 2016-06-21
Abstract: A detachable multi-connector coupling structure according to the present invention includes a portable smart device, a flexible case to protect or decorate the smart device, a flexible package inserted into the flexible case, and a detachable multi-connector which is exposed in the flexible case, connects data between the smart device and the flexible package, and is selectively connected to an external charging terminal, if necessary. According to the present invention, a battery can be charged during data communication.
Patent KR-20180000806-A (KR)
Inventor: LEE HYUNG JOO
IPC: F01D25/24
Filed: 2016-06-24
Abstract: The present invention provides a turbocharger, wherein in order to remove an assembly error caused by assembling a conventional heat shield, the heat shield is removed to reduce production costs and simplify a structure. Moreover, through a vane base ring, transmission of a high temperature at a turbine wheel side to a center housing is reduced to improve cooling efficiency.
Patent KR-20180000640-A (KR)
Inventor: LIM WON SUB
IPC: B63B25/16
Filed: 2016-07-07
Abstract: The present invention relates to a boil-off gas (BOG) re-liquefaction system and a vessel thereof, including: a liquefied gas storage tank; a BOG compressor for compressing BOG generated in the liquefied gas storage tank; and a liquefying portion for liquefying the BOG by using a mixed refrigerant. The liquefying portion includes: a re-liquefier for liquefying the compressed BOG by heat exchange with the mixed refrigerant; a mixed refrigerant compressor, which is of a screw type using oil for sealing and lubrication, and which compresses the mixed refrigerant; and an oil treatment portion for separating the oil from the compressed mixed refrigerant and recirculating the resultant oil to the mixed refrigerant compressor.
Patent KR-20180005937-A (KR)
Inventor: BONG JIN SIK
IPC: F16K37/00
Filed: 2016-07-07
Abstract: The present invention relates to a touch type water supply valve and, specifically, to a touch type water supply valve, which enables a user to conveniently and cleanly use the water supply valve by supplying and cutting off water when a part of a human body is simply touched to the water supply valve in a case that the user tries to use the water by using the water supply valve. The water supply valve supplying and cutting off the water comprises: a current flow unit enabling a current to flow in the water supply valve; a solenoid valve supplying the water by touch of the water supply valve in a state that the current flows in the water supply valve by the current flow unit; a vibration amplitude measuring unit sensing the current flowing through the water supply valve and a changed amplitude of the water supplied by the solenoid valve and the human body coming into contact with the water; a timer unit capable of cutting off water supply when predetermined time passes, by setting water supply time of the water supplied; and a compulsory cutoff unit compulsorily cutting off the water supply when there is a change when a vibration amplitude sensing unit checks the amplitude changed when the part of the human body is out of the water as usage is completed within the predetermined time during a process of washing the part of the human body while the water is supplied.
Patent KR-20180005958-A (KR)
Inventor: YEO WUN BONG
IPC: C09D163/00
Filed: 2016-07-07
Abstract: The present invention relates to an eco-friendly functional water-based paint composition using white and red clay. More specifically, the eco-friendly functional water-based paint composition is binary composed of a main ingredient and a curing agent. The main ingredient contains an epoxy resin, white and red clay powder, and water, whereas the curing agent contains amine, white and red clay powder, and water. According to the present invention, it is possible to promote health of users and residents since volatile organic compounds (VOCs) and heavy metal are barely detected in the paint composition while exhibiting excellent antibacterial and antifungal functions, humidity regulation functions, and toxic gas adsorption functions, thereby keeping living environment fresh.
Patent KR-20180006030-A (KR)
Inventor: SHIN HYE NAM
IPC: B65D51/24
Filed: 2016-07-08
Abstract: The present invention provides a container cap, which stores contents such as a beverage or an extract containing residues such as various fruits, seeds, and leaves in a container and enables two containers to be attached to and be detached from the one container cap so that the content moves to the other container and also the residues remain in the container. So, the container cap minimizes that the residues and content are in contact with air and can easily separate the residues and the content while preventing acidification or decomposition. The container cap is connected to a bottleneck unit from which the content in the container is discharged in the container storing the content inside. The container cap includes: a first space unit of the upper part; and a second space unit of the lower part. A partition is formed in the container cap to divide and block the first space unit and the second space unit. The container cap also has a thread on the inner circumference of each of the first space unit and the second space unit.
Patent KR-20180006652-A (KR)
Inventor: CHOI JAE SUNG
IPC: H01B11/22
Filed: 2016-07-11
Abstract: The present invention relates to an optical fiber cable stripping device. More specifically, the present invention relates to remove polyethylene or high-density polyethylene constituting the outer surface of an optical fiber cable in a chip form for recycling. A first circular cutter for removing a lower part of an outer surface rotated by motor drive between a guide roller for entrance which rotates by the motor drive and a guide roller for discharge, and a second circular cutter for removing an outer surface are arranged at regular intervals. A cutter for cutting the front and rear side of a cable is installed between the first circular cutter for removing the lower part of an outer surface and a guide roller for entrance.