baber/WOPTO huggingface dataset:
Patent JP-2002174586-A (JP)
Title: Manufacturing method for optical aperture
Inventor: SHINOHARA YOKO
IPC: G01B21/00
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a method, in which an optical aperture having a uniform aperture diameter, is formed using a simple method. SOLUTION: The position of a conical protrusion 1 is detected by a photographing device 9 in an aperture-to-be-formed body composed of the conical protrusion 1, a stopper 2 which is arranged near the conical protrusion 1 and whose height is nearly identical to the height of the conical protrusion 1 and a light-blocking film 3 which is formed at least on the conical protrusion 1. The aperture-to-be-formed body is positioned by a stage 10, in such a way that a pressure body 6 and the conical protrusion 1 are situated in a prescribed relative position. After that, a nearly planar plate which covers the conical protrusion 1 and the stopper 2 at least partly is pressurized toward the conical protrusion 1 by the pressure body 6, the film 3 is plastically deformed, and the optical aperture is formed nearly at the tip of the conical protrusion 1.
Patent JP-2002183954-A (JP)
Title: Optical information recording method, optical information recorded and trial recording method of optical information recording medium
Inventor: SHIMIZU AKIHIKO
IPC: G11B7/125
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a multi-valued recording system which obtains stable recoding marks in multi-valued recording. SOLUTION: A phase transition material changes from an amorphous state to a crystallized state by the recording laser power set at Pe. Overwrititing recording (recording while erasing) is made possible by this effect. The ratio of the amorphous state and the crystallized state of the recording marks is changed by changing this Pe, by which the value of a pit level is regulated. The change in the pit level when Pe is changed is shown in Figure 5. The abscissa ε in the graph of Figure 5 is defined by ε=Pe/Pw1 (=Pw2). The recording conditions at this point are Pw1=Pw2=13, 2 mW, Ttop=0.9 T, Tmp=0.45 T and they are the results of the recording with a mark length 4 T. The experimental results indicate that the pit level can be changed in a range from 0.3 to 0.6.
Patent JP-2001187707-A (JP)
Title: Transparent dental investment compound, dental kit, method for producing artificial tooth, use of investment compound, artificial tooth, flask for investment compound and dental external wall
Inventor: ERDRICH ALBERT DR
IPC: A61C13/16
Filed: 2000-12-08
Abstract: PROBLEM TO BE SOLVED: To provide a new dental investment compound, a new dental kit, a new method for producing an artificial tooth, the various uses of the investment compound, and the artificial tooth, which can solve defects, especially the dental investment compound which guarantees the optimal copying accuracy and fitting accuracy, and simultaneously advantageous material characteristics and handling characteristics. SOLUTION: This dental investment compound comprises 10 to 30 wt.% of polyethyleneglycol dimethacrylate, 40 to 55 wt.% of polymethyl methacrylate, 5 to 15 wt.% of highly dispersible silicon dioxide, <1 wt.% of a photoinitiator, <1 wt.% of a stabilizer, 0 to 10 wt.% of polyethyleneglycol, and 10 to 30 wt.% of at least one compound selected from the group consisting of urethane dimethacrylate, bis-GMA and ethoxylated bis-GMA.
Patent JP-2002136228-A (JP)
Title: Tool and method for separation and lining of seedling raising pot
Inventor: ANDO NAOZO
IPC: A01G9/02
Filed: 2000-12-12
Abstract: PROBLEM TO BE SOLVED: To provide both a tool for simplifying an operation for selectively pulling out seedling raising pots arranged in the longitudinal direction in a frame-like case from the frame-like case, and a method therefore. SOLUTION: Bottomed pot storage parts 11 having opening tops for storing and retaining seedling raising pots 1 each made of a resin so as to take in and out the seedling raising pots and a separation and arrangement tool 10 as a resin product for arranging open frame parts 12, through which the seedling raising pots 1 are passed, alternately in the longitudinal direction and connecting the open frame parts 12 are placed on a frame-like case 30. The pot storage parts 11 of the separation and arrangement tool 10 are inserted into and engaged with every other recessed parts 31a of bottomed recessed parts 31 arranged at fixed pitches in the longitudinal direction of the frame-like case 30. The seedling raising ports 1 are stored in each pot storage part 11 of the separation and arrangement tool 10 and in each recessed part 31b in an empty state of the frame-like case 30.  A plant is raised in each seedling raising pot 1. At a stage of growth of a certain degree, the separation and arrangement tool 10 together with the seedling raising pots 1 of the pot storage parts 11 is raised from the frame-like case 30 and the seedling raising pots in the frame-like case 30 are separated into halves.
Patent JP-2002182693-A (JP)
Title: Audio ending and decoding apparatus and method for the same and control program recording medium for the same
Inventor: TAKAMIZAWA YUICHIRO
IPC: G10L19/00
Filed: 2000-12-13
Abstract: PROBLEM TO BE SOLVED: To decrease operation quantities of mapping conversion and reverse mapping conversion with an audio encoding and decoding apparatus. SOLUTION: The audio encoding apparatus for encoding/decoding signals of plural channels over plural time sections comprises a parallel mapping conversion section 101 which stores the input signals of >=2 channels into one SIMD type variable and simultaneously carries out the mapping conversion for >=2 channels by using an SIMD type arithmetic and logic unit and a mapping signal compression section 102. The audio signals of the two channels (stereos) are inputted to the parallel mapping conversion section 101. The signals are subjected to mapping conversion in parallel by using the SIMD type arithmetic and logic unit and the SIMD type variable. The formed mapping signals are outputted to the mapping signal compression section 102.
Patent JP-2002178337-A (JP)
Title: Method for manufacturing heat insulating mold
Inventor: YASUDA KAZUHARU
IPC: B29C33/40
Filed: 2000-12-13
Abstract: PROBLEM TO BE SOLVED: To manufacture a mold having sufficient adhesion strength at the time of heat insulating processing and after processing when the mold having a heat insulating layer is manufactured. SOLUTION: In the method for manufacturing the heat insulating mold, the mold has straight chain type polyimide between the mold and the heat insulating layer comprising a heat-resistant resin as an adhesive layer, and is used for molding a synthetic resin. A precursor of the straight chain type polyimide is applied to the surface of the mold to be imidated and, after the coated surface of the mold is subsequently treated to be activated, the activated surface of the mold is coated with a precursor of an aromatic polymer to grow to the heat insulating layer.
Patent JP-2002185769-A (JP)
Title: Method for generating monogram background pattern in image print supply device
Inventor: TOYAMA JUNICHI
IPC: H04N1/387
Filed: 2000-12-13
Abstract: PROBLEM TO BE SOLVED: To provide an interesting image print by using a background image which is made more unique and that is synthesized with image information of an object or other image information. SOLUTION: The method for generating a monogram background pattern includes a step where a pattern generating menu 14 used to generate a pattern being a unit of the monogram background is outputted/displayed, a step where a source pallet 13 to record background source data such as characters or graphics is called, a step where two or more desirable background source data are selected from the called source pallet 13, and a step where a moving means is used to superimpose and lay out the two or more selected desirable background source data on a desired position of the pattern generating menu so as to generate the pattern acting like one unit of the monogram background.
Patent JP-2001232268-A (JP)
Title: Film formation device
Inventor: KITANO TAKAHIRO
IPC: G03F7/16
Filed: 2000-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a film formation device, capable of preventing the diffusion of particles when a coating liquid feed means is moved. SOLUTION: As for a resist coating device 17, a slider 91 to support a discharge nozzle 85 and a slide moving mechanism 92 to slidably move the slider 91 are arranged in a cover 87. In the cover 87, exhaust ports 130, 131, 132, 133 to discharge the atmosphere in the cover 87 are formed.
Patent JP-2002177021-A (JP)
Title: Slide fastener
Inventor: KANO YOSHIO
IPC: A44B19/26
Filed: 2000-12-18
Abstract: PROBLEM TO BE SOLVED: To provide a slide fastener that can be opened and closed by one hand. SOLUTION: The slide fastener has a pair of tape-form cloth portions 1 and 2, serrated clasps 3 and 4 provided in the butting portions of the side ends of the cloth portions 1 and 2, and a slider body 5, 31 and 45 engaging or separating the serrated clamps 3 and 4, and has driving gears 11 and 12 engaging individually with the serrated clasps 3 and 4 on the cloth portions 1 and 2 in the slider body 5, 31 and 45. The driving gears 11 and 12 are made large enough to make at least the tips of the driving gears 11 and 12 project rightwards and leftwards from the slider body 5, 31 and 45.
Patent JP-2002195246-A (JP)
Title: Hinge structure
Inventor: TSURUMAKI NAOKI
IPC: F16C11/10
Filed: 2000-12-20
Abstract: PROBLEM TO BE SOLVED: To provide hinge structure having superior torque control and durability. SOLUTION: The hinge structure is comprised of a spring 520 arranged along a shaft 510, and first and second cam structure arranged in both ends of the spring 520. Each cam structure is comprised of a movable cams 530 and 560 capable of rotating around the shaft 510 that is pushed by the spring 520, and fixing cams 540 and 570 fixed in the shaft 510 adjacent to the movable cams 530 and 560. A protruded-shape portion is arranged in one side of the movable cams 530 and 560 or the fixing cams 540 and 570, and a recessed-shape portion that conforms to the protruded-shape portion is formed in other side, respectively.
Patent JP-2002194462-A (JP)
Title: Wear resistant copper based alloy
Inventor: KAWASAKI MINORU
IPC: C22C9/00
Filed: 2000-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a wear resistant copper based alloy whose wear resistance can advantageously be increased even when used in atmospheres such as an oxidation reduced atmosphere, a lubrication reduced atmosphere, a nonoxidizing atmosphere and a nonlubricating atmosphere in particular, and is especially suitable for build-up welding treatment. SOLUTION: The wear resistant copper based alloy has a composition containing, by weight, 10.0 to 30.0% nickel, 0.5 to 5.0% silicon, 2.0 to 15.0% iron, 0.9 to 15.0% chromium, 2.0 to 15.0% cobalt, 0.01 to 15.0% silver, and one or more kinds selected from molybdenum, tungsten, niobium and vanadium of 2.0 to 15.0%, and the balance copper with inevitable impurities. The wear resistant copper alloy can be made into a buil-up welded layer 15 formed by a high density energy heat source.
Patent JP-2002189951-A (JP)
Title: Communication device, its control method, and medium
Inventor: KABURAGI HIROSHI
IPC: G06Q30/04
Filed: 2000-12-22
Abstract: PROBLEM TO BE SOLVED: To adequately determine the charge for downloading of a pay file without giving any feeling of unfairness. SOLUTION: On a client computer, etc., which communicates with a server on a network, conditions for downloading the charged data file from the server are set in a GUI picture, etc., and according to the set conditions, the charge is determined.
Patent JP-2002192218-A (JP)
Title: Cooling apparatus for rolled material
Inventor: SEKINE HIROSHI
IPC: B21B45/02
Filed: 2000-12-27
Abstract: PROBLEM TO BE SOLVED: To achieve effective use of installation space and forced cooling on a rolled material in a short time. SOLUTION: A cooling apparatus G is equipped with a tubular delivery guide 1, immediately close to an exit side of the last rolling rolls, through an inside bore of which, a rolled material can pass. The delivery guide 1 has many holes 1a to install spray nozzles 4 in both circumferential direction and longitudinal direction leaving a space each other. Among these holes 1a, holes without nozzles 1a1 are for outlet, while holes with nozzles 4 are capable to apply forced cooling by spraying cooling water on a rolled material, which is passing through the inside bore 1b of the delivery guide.
Patent JP-2002193461-A (JP)
Title: Paper feeding method for image forming device
Inventor: TAKEYAMA YOSHINOBU
IPC: B65H9/14
Filed: 2000-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a paper feeding method for image forming device capable of precisely eliminating a trouble such as double feed of transfer material without increasing the set number of sensors and continuously carrying transfer materials at narrow paper intervals without shortening a carrying passage. SOLUTION: In this method, a feed roller 42 is stopped after the lapse of a prescribed time after the detection of the tip of a paper P fed by the feed roller 42 by a resist sensor 44, whereby the paper tip is brought into contact with a resist roller 45, and the paper is waited with deflection so that the tip of the paper is matched to the tip of a toner image on an image carrier.  Thereafter, only the resist roller is driven at a constant speed to carry the paper, the resist roller is stopped after the lapse of the time of the paper carrying time from the resist sensor to the resist roller plus a prescribed time after the rear end of the paper is separated from the resist sensor, and the feed roller is driven at the same time the rear end of the preceding transfer material carried by the resist roller is separated from the resist sensor, thereby starting the carrying of the following transfer material.
Patent JP-2002193007-A (JP)
Title: Striker mounting structure for child seat
Inventor: AZUMA NOBUMASA
IPC: B60N2/90
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a striker mounting structure for causing less deformation of a striker even if force is imposed on a child seat in any direction. SOLUTION: The direction of winding of a striker 21 at its ends 21b, 21c on the peripheral face of a frame 13 is differentiated from the direction of winding a striker 23 at its ends 23b, 23c thereon.
Patent JP-2002203187-A (JP)
Title: Commodity sales system
Inventor: NUNOKAWA MASAAKI
IPC: G06Q40/02
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a commodity sales system allowing a commodity sales company to win confidence of a commodity purchaser without using any risky payment method such as payment on receipt or any great expense on advertisement and allowing the purchaser to request a commodity with relief for maximizing advantage of the commodity sales system via the Internet allowing participation with a low budget. SOLUTION: In this commodity sales system, a server of the commodity sales company is constructed in the following way. The server of the commodity sales company selling a commodity of a commodity supplier is connected to a communication line network, and via an optional terminal device connected to the communication line network, the purchaser can transmit information about the commodity to be purchased, information necessary for paying at least a part of a charge for the commodity through a finance company, and information allowing the commodity supplier to receive the charge paid via the finance company instead of the commodity sales company.
Patent JP-2002202150-A (JP)
Title: Rotary encoder
Inventor: UCHIYAMA HIDEKI
IPC: G01B7/30
Filed: 2000-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a rotary encoder in which a cord member restricts the location of a speed nut and rotates in such a way as to describe an accurate circle with the rotation of a shaft. SOLUTION: The rotary encoder comprises a housing 10, a detecting element 15 mounted to the side of the housing 10, a rotor 20 provided with both a mounting hole 23a at the center through which the shaft 50 is inserted and the cord member 30 opposite to a detecting element 16 and rotatably held at the housing 10, and the speed nut 40 provided with a plurality of tongue pieces 42 capable of rigidly fitting over the outer circumference of the shaft 50. The speed nut 40 is rotatable with the shaft 50 and the rotor 20, and provided with a location restricting means for restricting movements between the rotor 20 and the speed nut 40 in the directions which intersect the axis of rotation of the rotor 20 at the right angles.
Patent JP-2001340908-A (JP)
Title: Roll cooling method
Inventor: TAMAI YOSHIKIYO
IPC: B21C51/00
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a method controlling a thermal profile in which cooling of rolls is performed by injection of coolant through multiple coolant nozzles arranged at a direction of a roll barrel in a finish rolling, in a hot endless rolling in which a slab is heated in a heating furnace or in a hot batch-type rolling, a sheet bar is also produced by rolling in a rough rolling mill or a continuous finish rolling is performed by the connecting sheet bars. SOLUTION: A flow rate of roll coolant through coolant nozzles located apart at a predetermined distance from both ends of a sheet-bar passage in which a roll and rolled material are in contact with each other is adjusted to be less than the flow rate of roll coolant through coolant nozzles located at other places within the sheet-bar passage. Consequently, difference of thermal expansion of the roll at a barrel direction in the sheet-bar passage is reduced.
Patent JP-2002204247-A (JP)
Title: Automatic vlan information registration system
Inventor: NODA TADAKATSU
IPC: H04L12/70
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide an automatic VLAN information registration system which can automatically register user information, generate a correspondence table of MAC addresses of user terminals and VLAN information, and update the correspondence table as the largest burden on a network administrator when a dynamic network using VLAN and MAC-based Dynamic VLAN technologies is structured and enables the user-initiative registration of user information needed to connect to the network. SOLUTION: The automatic VLAN information registration system provides a means for automatically generating user information management data by making a user take the initiative in inputting specific user information items, a means for converting the automatically generated user registration information into VLAN information, a means for automatically generating the correspondence table of the VLAN information obtained by the converting means and Media Access Control(hereinafter MAC) addresses of the user terminals, a means for updating the generated correspondence table into URT, and a means which retrieves registered user information and displays necessary information on an administrator's screen.
Patent JP-2001512212-A (JP)
Title: 燃料蒸気抽出装置
IPC: F02M55/02
Filed: 1998-07-31
Abstract: (57)【要約】
燃料貯蔵タンク（20）から揮発性液体燃料が供給される内燃機関（10）用の燃料蒸気抽出装置が記載される。このエンジン（10）は、吸気装置（12, 14, 16）と、エンジン中で燃焼されるべき空気と混合する燃料を供給する液体燃料噴射装置とを有する。燃料蒸気抽出装置は、室内の燃料の液レベルを一定に維持する機能をする弁（26）により燃料貯蔵タンク（20）に接続された揮発室（30）を備える。一つ又はそれ以上の負圧源に接続されたパイプ（42）が、室（30）内の液レベルより上方の蒸気空間につながっており、揮発室内の減圧を維持している。燃料噴射装置は、上記揮発室（30）から液体燃料を吸引してこの燃料を燃料レール（34）に圧力下で供給する燃料循環ポンプ（32）と、上記燃料レール（34）から計量された量の燃料をエンジンの気筒へ分配する燃料インジェクター（18）と、上記燃料レール（34）中の燃料圧力を一定に保ちそして未使用燃料を上記燃料レール（34）から燃料戻し管（38）を介して上記揮発室（30）内の減圧の蒸気空間へ戻すリリーフ弁（36）とを備える。リターン燃料の表面積対容積比を増大させる手段として機能する蒸発器（40）が、揮発室（30）の蒸気空間に設けられる。リターン燃料は、蒸発器（40）と均質な熱的接触をし、揮発室（30）内で減圧に晒された蒸発器（40）の大きな面積に広がる。
Patent JP-2001513591-A (JP)
IPC: H01G9/12
Filed: 1998-08-03
Abstract: A sealing valve 10 for container openings made from rubber elastic material and having a stopper member 11 which can be introduced into the container opening up to a stopper collar 12 projecting beyond the stopper member 11 in a radial direction 26. At least one control channel 16 is formed on the stopper member 11 and extends in the direction of the longitudinal axis 24 of sealing valve 10 from one end of the stopper member 11 facing an inner region of the container 20. A sealing lip 15 is formed on the stopper collar 11 and can seat in a sealing fashion on a container edge 25 surrounding the container opening. The stopper collar 12 has a control channel section 29 transverse to the control channel 16 of a stopper member 11 which extends this control channel 16 up to the sealing lip 15. A reliable venting is guaranteed while simultaneously securing sealing to prevent the escape of battery liquids. Economical production with large yield is also facilitated.
Patent JP-2001514930-A (JP)
Title: 排泄物用開口部付きトップシートを有する吸収性物品
IPC: A61F13/511
Filed: 1998-07-29
Abstract: (57)【要約】
  吸収性物品は、開口部を有する密接にフィットした体側ライナーを含む。開口部は、前端部縁と、後端部縁と、一対の横方向に対向した側部縁を形成する。物品は、横方向の分岐方向において開口部の端部縁の少なくとも一方を越えて長手方向に延びる一対の弾性部材も含む。弾性部材は、開口部の少なくとも部分的に側部縁に沿って延びていればよい。弾性部材は、開口部の縁と着用者の臀部との接触を維持し、開口部と着用者の肛門部を使用時に整列させるように構成されている。物品はさらに前部ウエストセクションにおいて体側ライナーに配置された液体処理材料を含み、液体排泄物を吸収、含むようになっている。
Patent JP-2001515079-A (JP)
IPC: A61K31/522
Filed: 1998-08-14
Abstract: A compound of the formula I <CHEM>  wherein:   nuc is the residue of a nucleoside analogue bonded through its single hydroxy group on the cyclic or acyclic saccharide moiety, R1 is hydroxy, amino or carboxy; optionally having esterified/amide bonded thereon a C4-C22 saturated or unsaturated, optionally substituted fatty acid or alcohol, or an aliphatic L-amino acid;   R2 is the residue of an aliphatic L-amino acid;   L1 is a trifunctional linker group;   L2 is absent or a difunctional linker group;  and pharmaceutically acceptable salts thereof. <IMAGE>
Patent JP-2001516625-A (JP)
Title: 直接心膜アクセス装置及び方法
IPC: A61B17/00
Filed: 1998-09-18
Abstract: (57)【要約】
この発明は人間または動物の患者の心膜空間に侵襲性が最小限になるようにアクセスする方法と装置に関する。開示される心膜アクセス装置は誘導管（１４）の内腔（１３）内で軸方向に移動可能な貫入体（１２）を含んでいる。誘導管の遠端部は誘導管の内腔に加えられた吸引力によって誘導管内に引き込まれる心膜組織を支えるショールダを含んでいる。貫入体（１２）は引き続いて、心膜（２）にアクセスするために誘導管内に遠端方向に前進される。
Patent JP-2001516874-A (JP)
Title: 改良形試料検査システム
IPC: G01N21/47
Filed: 1998-09-18
Abstract: (57)【要約】
湾曲した鏡面（７８）を用いて、試料表面（７６ａ）により散乱され垂直照明ビーム（７０）および傾斜照明ビーム（９０）から発生する放射を収集する。収集した放射は検出器（８０）に集束される。垂直および傾斜の照明ビームから発生した散乱放射は、２つの異なる波長で放射を用いるか、２つのビームによって照明されるスポット間に意図的にオフセットを導入するか、もしくは垂直および傾斜照明ビーム（７０，９０）を交互にオンおよびオフに切り換えることによって、区別される。試料の高さが変化することによって生じるビームの位置誤差は、傾斜照明ビームの正反射を検出し、それに応答する照明の方向を変化させることによって修正する。バタフライ状の空間フィルタを湾曲ミラーの放射コレクタ（７８）と組み合わせて用いてある方位角に限定して検出を行う場合もある。
Patent JP-2001526887-A (JP)
IPC: C12N9/98
Filed: 1998-12-18
Abstract: Granules that include a protein core are described. The protein core includes a protein matrix which includes a protein mixed together with a combination of a sugar or sugar alcohol and a structuring agent such as a polysaccharide or a polypeptide. The protein matrix can be layered over a seed particle or the protein granule can be homogeneous. The protein can be an enzyme or a therapeutic protein such as a hormone. Also described are methods for making the granules.
Patent JP-2003526111-A (JP)
Title: マイクロエレクトロニクス基板洗浄用珪酸塩含有アルカリ組成物
IPC: C11D3/08
Filed: 1999-05-17
Abstract: (57)【要約】
本発明は、フォトレジスト残渣および他の不必要混入物(汚染物)を除去することにより、半導体ウェーハー基板をストリッピングするまたは洗浄するための、マイクロエレクトロニクス産業に有用な水性アルカリ組成物に関する。この組成物は一般的に、(ａ)ｐＨ約１１またはそれ以上に調製するのに十分な量の、１またはそれ以上の金属イオンフリー塩基；(ｂ)約０．０１％ないし約５％の重量濃度（ＳｉＯ 2 換算）の金属イオンフリー水溶性珪酸；(ｃ)所望により、約０．０１ないし約１０％重量濃度の１またはそれ以上のキレート剤；(ｄ)所望により、約０．１％ないし約８０％の重量濃度の１またはそれ以上の水溶性有機補助溶媒；(ｅ)所望により、約１％ないし約５０％の重量濃度のチタン残渣除去促進剤；および(ｆ)所望により、約０．０１％ないし約１％の水溶性界面活性剤、を含む。
Patent JP-2002516182-A (JP)
IPC: B23K23/00
Filed: 1999-05-21
Abstract: A single use, transportable reaction crucible for a metallothermic welding portion is provided. A separate cylindrical reaction vessel is disposed in the cylindrical casing of a non-metallic crucible shell, which has a flat base and a lid. The reaction vessel is supported on the base of the crucible shell and accommodates a welding portion. The outer diameter of the reaction vessel is less than an inner diameter of the cylindrical casing, with refractory material filling the annular intermediate space thereby formed between the reaction vessel and the cylindrical casing.