baber/WOPTO huggingface dataset:
Patent CN-113620755-B (CN)
IPC: A01B79/02
Filed: 2021-09-23
Granted: 2022-04-22
Abstract: 本发明公开了一种促进稀土矿区土壤氨氮去除的组合物及其应用方法，所述组合物包括：有机肥和碱性物料，所述碱性物料选自CaO、MgO、Ca(OH) 2 、Mg(OH) 2 或生物质灰中的任意一种或两种以上的任意组合，所述组合物的应用方法为：将有机肥和碱性物料分别以0.1‑1wt％和0.05wt％‑0.3wt％的比例施加至稀土矿区氨氮污染的土壤中，该组合物可以有效促进稀土矿区土壤中氨氮的转化，当pH值介于7.61‑8.93时，主要通过促进土壤中的氨氮被微生物利用，转化为硝态氮；当pH大于8.93时，主要通过促进土壤氨挥发的方式去除土壤氨氮。
Patent CN-113637944-B (CN)
IPC: C23C14/26
Filed: 2021-10-14
Granted: 2022-01-07
Abstract: 本发明属于电阻加热器领域，具体地说是一种纽扣型高温加热器，包括加热器外壳、加热丝、加热丝安装架、侧保温层、上保温层、绝缘保温片A及绝缘保温片B。侧保温层设置于加热器外壳的内部，上保温层、绝缘保温片A及加热丝安装架由上至下依次设置于侧保温层的内侧，加热丝均匀缠绕于加热丝安装架上，绝缘保温片B安装于加热器外壳的开口处，并对侧保温层进行支撑。本发明通过侧保温层及上保温层等的配合设置，可有效减少热传导，提高热辐射屏蔽效果；通过均匀细密设置的加热丝可实现稳定均匀的加热。本发明可在超高真空环境中使用，最小加热直径可做到20mm，最高加热温度可达1000℃，能够实现高效、均匀、稳定、节能的高温加热效果。
Patent CN-114058746-B (CN)
IPC: C21B3/06
Filed: 2022-01-17
Granted: 2022-04-19
Abstract: 本发明公开了一种钢渣破碎处理系统与方法，包括转运台车装置、破壳装置、倾翻装置、破碎装置、烟气处理及冷却装置和余热回收装置，所述转运台车装置、破壳装置、倾翻装置、破碎装置依次顺序组合连接，所述烟气处理及冷却装置与破碎装置前侧和/或后侧连接，所述余热回收装置与破碎装置后侧连接。本发明实现了熔融钢渣的全装备化处理，可实现连续生产，极大地提高了钢渣处理效率，降低了人工成本。
Patent CN-114093601-B (CN)
IPC: H01F27/08
Filed: 2022-01-19
Granted: 2022-04-08
Abstract: 本发明公开了一种具有防尘功能的电力电气变压器，包括外壳、挡棚、罩壳，变压器主体设置在外壳的内部，排风扇设置在外壳的内壁顶部，防尘网设置在外壳的顶部且位于排风扇的位置，减震装置设置在外壳内壁底部与变压器主体底部相对应的两侧之间，过滤网设置在外壳表面底部相对应的两侧且位于罩壳的位置，清理装置设置在外壳的内壁底部且靠近过滤网的位置，滑块固定在变压器主体表面相对应的两侧且与外壳之间滑动连接，本发明涉及电力电气设备技术领域。该具有防尘功能的电力电气变压器，达到了防尘降噪的效果，可对粉尘过滤，减少杂质进入内部，有助于散热，延长设备的使用寿命，并且可进行缓冲减震，降低噪音，安全可靠，提高了使用性能。
Patent CN-114238946-B (CN)
Title: 设备管理方法、装置、电子设备及计算机可读存储介质
IPC: G06F21/53
Filed: 2022-02-23
Granted: 2022-05-03
Abstract: 本申请实施例提供了一种设备管理方法、装置、电子设备及计算机可读存储介质，该方法当启动设备的功能安全机制时，将中央处理模块的运行环境从普通执行环境切换至可信执行环境，在可信执行环境中对功能安全机制进行功能测试，得到整体测试结果，并将中央处理模块的运行环境从可信执行环境切换至普通执行环境，在整体测试结果表征目标功能安全机制外设发生异常时，生成可信安全中断请求，再通过可信安全中断请求，将中央处理模块的运行环境从普通执行环境切换至可信执行环境，在可信执行环境中对功能安全机制外设进行异常解除操作。本申请中在可信执行环境中对功能安全机制进行功能测试，提高了设备的安全性能。
Patent CN-114282688-B (CN)
IPC: G06F21/62
Filed: 2022-03-02
Granted: 2022-06-03
Abstract: 本说明书实施例公开了一种两方决策树训练方法和系统以保护双方的数据隐私。对于任一特征，两方的设备可以基于排列向量通过安全排列方法按该特征的特征值对第一梯度向量和第二梯度向量排序，获得第一/二梯度排序结果向量的分片及其分组，并计算该特征下的各分组对应的梯度和的分片。两方的设备按照多方安全计算协议进行交互，以基于各特征下的各分组分别对应的梯度和分片计算各特征下的各分组分别对应的分裂增益分片。进而，两方的设备通过多方安全比较协议确定最大分裂增益对应的特征及分组，并按最大分裂增益对应的特征及分组分裂节点。
Patent CN-114322965-B (CN)
IPC: G01C15/00
Filed: 2022-03-03
Granted: 2022-05-31
Abstract: 本发明公开了一种激光水平仪的安装头组装设备，包括：间歇式输送带，用于将激光水平仪输送至组装工位处；安装头供料部，设置在间歇式输送带的两侧，安装头供料部用于向组装工位处提供待组装的安装头；自动装配机构，设置有多个，多个自动装配机构分布于组装工位的四周，自动装配机构能够一对一的获取安装头供料部上的安装头，且所有自动装配机构能够同时动作以使得多个安装头一次性装配在激光水平仪上；本发明利用多个自动上料组件可一次性实现多个安装头的组装，提高了组装效率，同时，通过竖直升降机构和角度调整机构的配合作用，可在安装头向上移动的过程中改变安装头的倾斜角度，避免了二步操作的繁琐，进一步提高了装配效率。
Patent GE-P19960610-B (GE)
Title: Method of purification of human -interferon
Inventor: KHOSOI KATSUO OZAVA KHITOSI
IPC: A61K36/00
Filed: 1993-12-23
Abstract: The invention refers to medicine and can be used for purification of human -interferon. Technical result of the invention - increase of productivity of process.            Solution of crude interferon are passed through immobilized blue agarose gel, are eluated and the eluate is additionally passed through chelate metal carrier with the rest of chelation including at least an ion of one metal from group CO2 +, Ni2 +, Zn2 + pH contacting with blue agarose 5-9.             10 Tables.
Patent GE-P20227420-B (GE)
Title: Compositions comprising streptococcus pneumoniae polysaccharide-protein conjugates and methods of use thereof
Inventor: M SKINNER JULIE
IPC: A61P31/04
Filed: 2018-12-04
Abstract: An invention relates to multivalent immunogenic compositions comprising 21 various S. pneumoniae polysaccharide protein conjugates, wherein each therefrom comprises S. pneumoniae serotype conjugated to carrier protein. In some embodiments, at least one of polysaccharide protein conjugates is formed by conjugation reaction wherein aprotic solvent is used.   	  s
Patent CA-1284125-C (CA)
Title: Laser marking of pigmented high molecular weight polymer surfaces
Inventor: GUGGER HEINRICH
IPC: C08L33/00
Filed: 1986-02-03
Granted: 1991-05-14
Abstract: Laser marking of pigmented systems Abstract of the Disclosure A process for marking high molecular organic material containing at least one radiation-sensitive additive that effects a change in colour, which process comprises utilising as radiation energy a laser beam having a wavelength in the close ultraviolet and/or visible range and/or close infra-red range, and using as additive at least one inorganic and/or organic pigment and/or a polymer-soluble dye.
Patent CA-1289568-C (CA)
Title: Process for production of amino compounds
Inventor: TSUJI JIRO
IPC: C07C227/18
Filed: 1986-02-24
Granted: 1991-09-24
Abstract: ABSTRACT           In a process for the production of an amino compound, the improvement wherein a protected amino com-pound containing an amino group protected with a 2-alkenyloxycarbonyl group is deprotected in contact with a compound of a platinum group metal as a catalyst in the presence of a formic acid compound selected from formic acid and salts thereof.
Patent CA-1279417-C (CA)
Title: Emulsion-type rust preventive baking composition
Inventor: HANAZAWA HIDEAKI
IPC: C09D5/08
Filed: 1987-03-10
Granted: 1991-01-22
Abstract: ABSTRACT OF THE DISCLOSURE       Emulsion-type, rust-preventive composition which comprises a polymer emulsion such as an aqueous acrylic resin emulsion and a heat-fusible organic filler having a melting or softening point within the range of 40-250°C which is higher by at least 10°C than the lowest film-forming temperature of the polymer emulsion, incorporated in the polymer emulsion.  When the emulsion-type rust-preventive baking composition obtained by the mixture is applied to reinforcing steel rods or the like, and baked, the heat-fusible organic filler melts and fills pores in the rust-preventive film coating, whereby the film is rendered close and compact to produce an excellent rust-preventive effect.
Patent CA-1294238-C (CA)
Title: Selective electrolytic removal of metal coating from base metal with alkanesulfonic acid solution
Inventor: CHEN JOHNSON C
IPC: C25F5/00
Filed: 1987-03-12
Granted: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE     Metal coatings are stripped from base-metal substrates in an electrolytic process employing an aqueous solution of alkanesulfonic acid of 1 to 4 carbons as the electrolyte at a concentration of from about 45 to about 70 weight percent, the coated base-metal substrate as the anode, and an electroconductive cathode, by impressing an electromotive force across the solution between the electrodes until the current decreases to zero which occurs when the metal coating on the anodic material is depleted and the base-metal substrate is left exposed.
Patent CA-1339689-C (CA)
Inventor: KUDELSKI ANDRE
IPC: H04N7/173
Filed: 1987-04-16
Granted: 1998-02-24
Abstract: The decoder comprises a microprocessor connected to a receiver of data of teletext and to a text generator for displaying  informations on the  screen of  the television receiver. Further, a card said CPTV-card (card pay-television) is  associated  to the microprocessor,  this card managing the credit necessary for the purchase of emissions, for the memorization of the emissions purchased and for permitting the unscrambling of the emissions purchased by delivering to the microprocessor the input pointer in the sequence which is calculated by the microprocessor by means of the information which has been memorized as well as the information delivered by the decoder. The programs of the forecasted emissions are transmitted by the head station and memorized in the microprocessor of the decoder. Another memory of the microprocessor contains the instructions for the manipulations to be effected for selecting an emission and for purchasing it as well as for recharging a credit in the CPTV-card. A keyboard permits to select and to display on the screen of the television receiver the forecasted emissions as well as the instructions of manipulation which enormously facilitates the dialog between the user and the decoder and contributes to avoid errors of manipulation.  The decoder  according  to the  invention operates as a guide for the user, for all operations to be effected.
Patent CA-1288511-C (CA)
Title: Method for erasing information
Inventor: PETROV VYACHESLAV V
IPC: G11B7/00
Filed: 1987-04-29
Granted: 1991-09-03
Abstract: METHOD FOR ERASING INFORMATION            ABSTRACT     Disclosure is made of a method for erasing information recorded on an optical information carrier, which consists in that use is made of an optical carrier having an air-tight internal space with a recording layer available on the inner surface thereof, said internal air-tight space is filled with gas inert in relation to the material of the recording layer and to the material of the optical carrier under a pressure selected from a range of 10-103 kPa, and the optical information carrier is exposed to heat, and, after heating is discontinued, the recording layer is regenerated.
Patent CA-1296989-C (CA)
Inventor: HAMA TAIRA
IPC: B21D53/36
Filed: 1987-05-19
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE     A method and apparatus are disclosed for reforming the initial shape of an approximately loop-shaped starting piece into a final prescribed loop-shape.  A plurality of elongated materials such as wire rods are arranged in parallel at prescribed intervals to define a prescribed looped or cylindri-cal space having a first diameter.  A plurality of pressing means such as pressing plates actuated by cylinders and pistons press free ends of the elongated materials to reduce the diameter of the looped spare prescribed by the elongated materials to define a reduced looped space having a second diameter smaller than the first diameter.  The free ends of the elongated materials are then inserted within the starting piece.  The pressing means are retracted, whereby the free ends of the elongated materials contact the inner surface of the starting piece.  A control piece moved in the direction of elongation of the elongated materials is moved to the free ends of the elongated materials within the starting piece, thereby pressing the free ends against an inner surface of the starting piece to reform the shape of the starting piece to the final prescribed loop shape.
Patent CA-1309347-C (CA)
Inventor: SANDERS LYNDA M
IPC: A61K9/00
Filed: 1987-05-21
Granted: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE      This invention concerns novel, delayed/sustained release devices including methods of their manufacture and use.  The devices comprise macromolecules, particularly polypeptide pharmaceuticals, and an initially partially-hydrated, non-biodegradable, hydrogel rate-limiting membrane.
Patent CA-1305022-C (CA)
Title: Method for surface treatment and treating material therefor
Inventor: ARAI TOHRU
IPC: C23C10/24
Filed: 1987-07-03
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE          A method and a bath agent for forming a carbide or diffusion layer on the surface of an article to be treated by immersing the article in a molten salt bath.          The salt bath comprises borax, at least one oxide of a surface layer forming element (SFE) selected from the group consisting of an oxide of a Va-Group element of the Periodic Table and an oxide of chromium, and aluminum, The amounts of the SFE-oxide and of aluminum to the whole amount of the bath are 9.5 to 21.5 wt% and 4 to 7.5 wt%, respectively.  The treating method provides the extended life of the bath, the facilitation of washing of  the bath agent adhered to the treated article, etc.
Patent CA-1300777-C (CA)
Title: Zinc borate as a smoke suppressant
Inventor: CELLA JAMES A
IPC: C08L83/04
Filed: 1987-07-17
Granted: 1992-05-12
Abstract: ZINC BORATE AS A SMOKE SUPPRESSANT                 ABSTRACT OF THE DISCLOSURE A high hydrocarbon content combustible composition containing silicone is described which incorporates zinc borate to reduce smoke emission. The composition comprises:          (a) sufficient hydrocarbon content that elemental carbon constitutes at least about 40% by weight of the total composition;          (b) sufficient silicone polymer that elemental silicon constitutes at least about 1/2 % by weight of the total composition; and (c) sufficient zinc borate to reduce smoke generation.
Patent CA-1325988-C (CA)
Title: Process for the degradation of coal tar constituents by white rot fungi
Inventor: AUST STEVEN D
IPC: C02F3/34
Filed: 1987-08-21
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE      A process for degrading coal tar or polycyclic aromatic constituents thereof using lignin degrading oxygenase fungal enzymes and hydrogen peroxide is described.   The fungus is preferably living and is most preferably a white rot fungus such as Phanerochaete chrysosporium. The process provides a means for the treatment of coal tar wastes.
Patent CA-1298495-C (CA)
Inventor: GRUNSKY MANFRED
IPC: B23B51/06
Filed: 1987-08-26
Granted: 1992-04-07
Abstract: ABSTRACT           A one-piece rotary drill or end milling cutter is an extruded product made of sintered hard metal.  The front end portion of its shank has one or more cutting edges and its rear end portion tapers in a direction away from the front end portion and is receivable with friction in a complementary conical socket of a rotary holder.  The shank has one or more longitudinally extending coolant holes with a circular or triangular cross-sectional outline, and such hole or holes are formed in the course of the extruding step. The peripheral surface of the shank has one or more longitudinally extending chip evacuating grooves, and those portions of the grooves which are formed in the rear end portion of the shank contain fillers of bondable plastic material or solder.
Patent CA-1290983-C (CA)
Title: Mobile tie gang apparatus
Inventor: THEURER JOSEF
IPC: E01B29/10
Filed: 1987-09-23
Granted: 1991-10-22
Abstract: MOBILE TIE GANG APPARATUS     ABSTRACT OF THE DISCLOSURE     A mobile apparatus for sequentially exchanging selected consecutive groups of old ties for groups of new ties while retaining a groups of old ties between the selected old ties for support of the mobile apparatus on the railroad track, which apparatus comprises an elongated bridge-like work vehicle having two undercarriages supporting respective opposite ends of the work vehicle on the railroad track, and a succession of different individual devices mounted on the work vehicle between the undercarriages and operative to effectuate different sequential operations for exchanging the selected old ties for the new ties.
Patent CA-1327446-C (CA)
Inventor: SCHROEDER ALBERT H
IPC: C23F11/14
Filed: 1988-01-08
Granted: 1994-03-08
Abstract: ABSTRACT OF THE DISCLOSURE         A corrosion inhibiting polyalkylenepolyamine composition comprising a mixture of (a) at least one C-alkyl-ethylene diamine, and (b) at least one di-(C-alkyl)-diethylenetriamine or at least one di-(C-alkyl)-piperazine or a mixture thereof; wherein each C-alkyl group on the ethylene diamine, diethylenetriamine and piperazine independently contains from 10 to 28 carbon atoms.  Methods for preparing this composition are also disclosed, as well as methods for its use in inhibiting corrosion of corrodible metals.
Patent CA-1311217-C (CA)
Title: Tear strip closure for a container with a security ring
Inventor: LANDIS H RICHARD
IPC: B65D17/40
Filed: 1988-01-15
Granted: 1992-12-08
Abstract: ABSTRACT OF DISCLOSURE An inexpensive, one-piece closure has a press-fit sealed engagement with a container which has a closure retention bead adjacent the open mouth of the container.  A tear-off strip provides a tamper-evident feature and includes a pull tab for tearing off the strip thereby exposing a lift tab by which the closure may be lifted from the container.  The lift tab is useful where the container has a security or saturn ring on its sidewall projecting outwardly immediately below the skirt of the closure to limit access to the lower edge of the tear strip.  Preferably, the lift-off tab is initially partially hidden behind the pull tab and is connected thereto, and the lift-off tab is exposed and pulled to a position to be accessible after the pull tab is grasped and pulled by the user to remove the tear-off strip.
Patent CA-1308883-C (CA)
Title: Compact reinforced composite
Inventor: BACHE HANS H
IPC: C04B28/02
Filed: 1988-01-21
Granted: 1992-10-20
Abstract: Compact Reinforced Composite ABSTRACT A compact reinforced composite comprising a matrix (A) with a reinforcement (B) em-bedded therein, the matrix (A) being a composite structure comprising a base matrix (C) which is reinforced with reinforcing bodies (D) in the form of fibers. The transverse dimension of (B) being at least 5 times as large as the transverse dimension of (D).
Patent CA-1337726-C (CA)
Title: Disk file employing dual filters
Inventor: BOLTON IVOR WILLIAM
IPC: G11B25/04
Filed: 1988-01-28
Granted: 1995-12-12
Abstract: A disk file 10 employs at least two filters 15,16 for removal of airborne particles, one filter 16 having a relatively coarse mesh and a relatively high rate of airflow and the other 15 having a relatively fine mesh and a relatively low rate of airflow.The fine filter 15 may be combined with a third, breather filter 30 which removes particles from air entering the disk enclosure. The main purpose of the coarse filter 16 is to remove the larger, more damaging particles very rapidly, thereby reducing the risk of damage to the surfaces of the disks 12.
Patent CA-1293805-C (CA)
Title: Authenticating pseudo-random code and apparatus
Inventor: SANT ANSELMO CARL
IPC: G06K7/10
Filed: 1988-02-09
Granted: 1991-12-31
Abstract: ABSTRACT OF THE DISCLOSURE     matrix code generating method generates a first predetermined code in binary form.  A second step permutes the first determined code according to a non-linear feedback method described as pseudo-random.  The code is segmented with linear segments positioned in a two dimensional matrix array. Apparatus generates and permutes the code, and segments the resultant code into matrix array from.          Apparatus encrypts such information onto objects, photo-optically reads such encrypted information and deciphers the coded information.
Patent CA-1294139-C (CA)
Title: Appliance door having stiffened inner panel with shelves and method of forming
Inventor: STICH RICHARD A
IPC: A47G29/00
Filed: 1988-03-03
Granted: 1992-01-14
Abstract: APPLIANCE DOOR HAVING STIFFENED INNER PANEL      WITH SHELVES AND METHOD OF FORMING                 ABSTRACT OF THE DISCLOSURE      A refrigerator door has its plastic inner panel, which has a plurality of container supporting shelves extending therefrom, stiffened through forming integral vertical stringers adjacent each other across substantially the entire width of the surface of the inner panel between the shelves.  Gussets extend from one end of each of the integral stringers into one of the upper and lower surfaces of each adjacent shelf.  The integral stringers are V-shaped or U-shaped in cross section.  The gussets are V-shaped when the integral stringers are V-shaped and may be V-shaped or U-shaped when the integral stringers are U-shaped.  The integral stringers stiffen the entire door without adding material and control the stiffness through the cross sectional moment of inertia of each of the integral stringers.  When there is a lack of space beneath the bottom shelf, the gussets cannot be employed, but a shadow line is used to increase the moment of inertia.          The integral stringers have an aesthetic pattern in either the V-shaped or U-shaped configuration.
Patent CA-1295642-C (CA)
Title: Bellows mechanical seal with inactive diaphragms
Inventor: WENTWORTH ROBERT S JR
IPC: F16J15/36
Filed: 1988-03-09
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE        A bellows type mechanical seal assembly in which the bellow is provided with inactive or non-functional diaphragms to increase the pressure capacity of the seal assembly.
Patent CA-1294377-C (CA)
Inventor: ORBACH ZVI
IPC: H01L21/768
Filed: 1988-03-24
Granted: 1992-01-14
Abstract: ABSTRACT         A  technique  for production of  customized  integrated circuits  comprising the steps of providing an integrated circuit blank  having  at least first and second metal  layers  including portions  arranged  for  selectable removal  to  provide  desired customization  of said integrated circuit blank,  and  thereafter etching  at  least   said first metal  layer  to  customize  said integrated circuit blank.
Patent CA-1285617-C (CA)
Title: Apparatus and method for a cellular freeway emergency telephone service
Inventor: NASCO MICHAEL JR
IPC: H04M11/00
Filed: 1988-03-25
Granted: 1991-07-02
Abstract: Abstract of the Disclosure A system for emergency call box service which comprises a plurality of emergency call boxes, wherein each call box further comprises a controller, a cellular transceiver coupled to the controller, a battery coupled to the controller for providing power to  the controller and transceiver, and a solar array for generating power coupled to the controller for recharging the battery; and a cellular telecommunications subsystem in radio-telecommunication with each of the plurality of emergency call boxes, and whereby the plurality of emergency call boxes can be installed and maintained at low cost and capable of arbitrarily programmable interactive operations.
Patent CA-1309027-C (CA)
Inventor: YOSHIE YASUMASA
IPC: A61K31/44
Filed: 1988-04-19
Granted: 1992-10-20
Abstract: ABSTRACT OF THE DISCLOSURE         An agent for treatment and prevention of asthma comprising 2-[2-phenyl-2-(2-pyridyl)]ethyl-2 imidazoline or a salt thereof as an active ingredient is disclosed.
Patent CA-1301586-C (CA)
Inventor: DALO JEAN
IPC: E04H15/34
Filed: 1988-05-05
Granted: 1992-05-26
Abstract: 1. Framework forming support for a substantially pyramidal tent canvas of a light shelter which is stretched between the top of a vertical central pole and a polygonal base, said framework comprising a rigid frame in the form of a first regular polygon, to the sides (15) of which the canvas (1) is hooked, the pole being maintained by inclined rigid arms of which the ends are coupled, in common, to the pole, characterized in that the lower end of the central pole (4) is located at a level higher than the horizontal plane of the polygonal frame (3), the lower end of the pole (4) is rigidly coupled to the upper part of said inclined rigid arms (5) of which the lower parts are coupled to the sides (15) of the polygonal frame (3), at points of connection (14) spaced apart from the apices of the polygonal frame (3), the points of connection (14) of two adjacent inclined arms (5) with two adjacent sides (15) of the frame (3) being symmetrical with respect to the bisectrix of the angle formed by these two sides (15), and crosspieces (6) extending respectively across the angles of the frame, between points of hooking (16) on the sides of the frame (3) which are symmetrical with respect to the bisectrix of each angle, thus forming a second polygon inscribed in the first with a number of sides double that of the first polygon, the high part of the pole (4) being connected to the canvas (1) which is stretched between this upper part and the first polygon.