baber/WOPTO huggingface dataset:
Patent CN-1514907-B (CN)
Title: 混合动力车辆的控制装置
Inventor: WAKASHIRO T
IPC: B60L50/16
Filed: 2002-05-23
Granted: 2010-11-10
Abstract: 一种用于混合动力车辆的控制装置，该装置能够通过气缸停用操作来改善油耗同时保持制动性能。该混合动力车辆具有用于输出动力以便驱动车辆的一发动机(E)和一电动机(M)，其中在车辆的减速行驶期间根据其减速状态来使用一再生制动器，并且该发动机包括至少一个可停用气缸，该气缸在车辆减速行驶期间可以停用。该控制装置包括：一停用确定部分，用于根据车辆的行驶状况来确定是否允许所述可停用气缸停用；一停用取消确定部分，用于在停用操作期间取消气缸停用；一进气压力传感器(S1)；一总泵真空动力装置负压传感器(S3)；以及一控制阀(34)，用于打开/关闭辅助气道(33)以便将辅助空气提供给进气通道(30)，其中在所述进气压力在车辆减速行驶期间为高于预定阈值的负值时所述控制阀(34)关闭。
Patent CN-85103510-B (CN)
IPC: A01G33/00
Filed: 1985-05-03
Abstract: 将海水绿藻于海水培养基中，揭示一种在开放条件下培养之方法。该方法为，于该培养基中使用至少一种选自碳酸盐及重碳酸盐群做为碳源，培养基之pH值为8.0乃至10.0，培养基中之氯化钠浓度为0.8乃至3.0重量％为其特征者。
Patent CN-86101105-B (CN)
IPC: B25B27/06
Filed: 1986-02-07
Abstract: 本发明提供一种用于机械零件拆卸的手工工具－－轴承起拨器，它是由两个弧形拉爪通过一个套箍箍住，其一端由爪钩构成环形接触面将拉力作用于待卸轴承，另一端与顶住机轴的丝杆上的螺母连接，随着螺母在外力作用下旋转产生位移将轴承卸下的装置，可以根据轴承的不同规格做成相应的系列产品。
Patent CN-1008728-B (CN)
Title: 低熟料磷渣水泥及工艺方法
Inventor: YANAN CHEN
IPC: C04B12/00
Filed: 1987-12-02
Abstract: 一种以磷渣为主要成份的低熟料磷渣水泥及工艺方法，其配方是由磷渣，熟料和经850～950℃高温锻烧过的高温石膏组成，其工艺方法同生产矿渣硅酸盐水泥的工艺方法相类似。按本发明所述的配方和方法生产的水泥，完全达到GB1344-85中325#水泥标准。该水泥早期强度偏低，但后期强度增长很高。它生产成本低，工艺简单，很适合工业性生产。
Patent FI-112429-B (FI)
Inventor: HEINONEN PETTERI
IPC: H04W8/22
Filed: 2000-01-12
Granted: 2003-11-28
Abstract: A method for the using and representation of applications stored on a terminal device and/or smart card in a telecommunication system comprising a telecommunication network (WN); a terminal device (MS) which is connected to the telecommunication network (WN) a server (SERVER) which is connected to the telecommunication network (WN); a smart card (SC) which has been inserted into the terminal device (MS); a SIM Application Toolkit (STK) which has been arranged in the terminal device (MS) and/or smart card (SC). In the method, the terminal device (MS) comprises the necessary features for using the WAP. According to the invention, a piece of definition information (EF) is generated that comprises information about the SIM Application Toolkit applications at the disposal of the terminal device (MS) and about their use in a WAP environment; definition information (EF) is being read, when one wishes to use SIM Application Toolkit applications in a WAP environment; and SIM Application Toolkit applications are being displayed on the terminal device (MS) in a WAP environment in a way as presented by the piece of definition information (EF).
Patent FI-114886-B (FI)
Inventor: ASIKAINEN KALLE
IPC: H03D13/00
Filed: 2001-06-29
Granted: 2005-01-14
Abstract: A method and a device for reducing cycle slips resulting from frequency hops in a wireless communication device. In the method, a first signal pulse is received, which first signal pulse is either said reference signal pulse or said signal pulse to be compared, a second signal pulse is received, which second signal pulse is from another source than said first signal pulse, a control voltage is generated for controlling a voltage controlled oscillator in response to a phase difference between said first received and said second received signal pulses. At a time instant between the reception of said first and said second signal pulses, a constant voltage is added to said control voltage on receiving additionally one signal pulse, which is the same type as said first signal pulse. After receiving said second signal pulse, said constant voltage is removed from said control voltage on receiving at least one signal pulse, which is the same type as said second signal pulse. <IMAGE>
Patent HK-1040971-B (HK)
Title: Dosing container for the multiple removal of free-flowing health-related application products
Inventor: MICHAEL BAYER
IPC: G01F/
Filed: 2002-04-18
Abstract: A dosing container (1) made of transparent material which is useful for the multiple removal of a free-flowing application product for a subject animal or human health, having a filling section (6) which is of a constant cross section over its filling height (3), and having adjustably secured to the container a dosing slide (10, 23) having a scale (11, 22), which slide can be adjusted over the filling height (3) of the container (5), and which can be set at the beginning of a treatment to a filling height (15) indicated by a scale value (14) corresponding to the body weight of the subject to be treated and which setting reaches filling height 16 corresponding to the scale value zero (12) at the end of a treatment.
Patent HK-1041629-B (HK)
Title: Ecg electrode structure and method for measuring ecg signal from a person in water
Inventor: SEPPO NISSILA
IPC: A61B5/276
Filed: 2002-05-02
Abstract: The invention relates to an ECG electrode structure suitable for use in water during swimming, for example, and to a method for measuring an ECG signal from a person who is in water. To measure a difference in potential (304), the ECG electrode structure comprises a first measurement electrode (502) arranged to be in contact with an area of the skin (202) on a user's body such that, when in use, the electrode is electrically insulated (510) from the water (108), and a second measurement electrode (300). When in use, the second measurement electrode (300) is arranged to be in contact only with the water (108), the second measurement electrode (300) thus being in contact through the water with an area of the person's body other than the area under the first measurement electrode (502). <IMAGE>
Patent HU-177222-B (HU)
Title: Process for preparing tetracyclononae derivatives with antiviral activity
Inventor: SWALLON DOUGLAS L
IPC: C07C211/25
Filed: 1978-12-18
Abstract: The invention relates to a pharmaceutical composition comprising a tetracyclononane derivative of the formula:
     wherein R 1 , R 2  and R 3  are hydrogen atoms or alkyl radicals and A is CH 2 CH 2  or CH-R 4  in which R4- is a hydrogen atom or an alkyl, cyclohexyl, phenylalkyl or optionally-substituted phenyl radical, or a salt thereof. The majority of compounds of the formula II are novel and they are included within the scope of the invention, as are processes for their manufacture. Typical of the compounds disclosed is 8-(1-aminoethyl)tetracyclo-[4,3,0,0 2,4 ,0 3,7 ]nonane.
Patent IN-159180-B (IN)
Inventor: DENT PAUL WILKINSON
IPC: H04K1/00
Filed: 1983-01-18
Abstract: A frequency-hopping radio communication system in which a network of stations operate on the same sequence of frequencies, in synchronism, controlled by pseudo-random generators which are initially synchronised. Each station has means for modifying its p.r. sequence dependent only upon the instant in the main line sequence at which the modification is switched. In order to communicate, one station transmits, on the current main-line frequency sequence, the address of the desired other station and then signals the sequence switch. At this instant both transmitting and receiving stations switch to a modified frequency sequence and are thus isolated from the remaining stations. At the end of the message a signal from the transmitting to the receiving station causes both stations to revert to the main line sequence.
Patent IN-159885-B (IN)
Inventor: PRENTISS WILLIAM CASE
IPC: C14C3/22
Filed: 1984-01-24
Abstract: The process for tanning leather comprises treating leather stock with methacrylic acid/alkyl acrylate copolymers having a narrow range of molecular weight as tanning agent to produce leather which may be flexible, having smooth grain and being well-filled, the tanned leather having improved resistance to detannage by washing with alkaline solution.
Patent IT-1271377-B (IT)
Title: Mattress made of foam plastic materials
Inventor: GIANNETTI SILVANO
IPC: A47C/
Filed: 1994-01-12
Granted: 1997-05-27
Abstract: The invention is embodied as a composite biscuit structure combining two external sheets 1, 2, occupying the entire front and rear surfaces of the mattress, and a plurality of internal transverse bands arranged side by side, the whole made of foam plastic materials with suitable parameters of density and flexibility to achieve, in the composite structure, flexibility values which can vary according to the predetermined order. <IMAGE>
Patent IT-1258006-B (IT)
Title: Sistema e metodo per il prelievo automatico di oggetti
Inventor: NERI ARMANDO
IPC: B65H19/12
Filed: 1992-01-13
Granted: 1996-02-20
Abstract: Il sistema di prelievo di oggetti (1) comprende un robot (6) dotato di un organo di presa (8) portante una telecamera (11) per acquisire un'immagine dell'oggetto da prelevare; l'immagine viene fornita ad una sezione di controllo (3) che la elabora per determinare un punto prefissato dell'oggetto, tipicamente il contro, generando immagini traslate dello stesso oggetto e facendo l'intersezione delle immagini traslate e dell'immagine originale.(Figura 1).
Patent IT-1262863-B (IT)
Title: Lockable guide unit - has two elongate members with dovetail portions, one member having transverse recess
Inventor: RUBEN CHARLES
IPC: F16D/
Filed: 1993-08-16
Granted: 1996-07-04
Abstract: The unit comprises a first and a second elongated member, each having a rectangular section. The first member has a longitudinal dovetail shaped portion. The second member has a mating dovetail shaped groove. The members may be slidably connected to each other by the dovetail shaped rib and groove. The second elongated member has a transverse recess extending from one long side of the member towards the opposite long side. The first elongated member has one or several transverse recesses extending from one long side and towards the opposite long side.
Patent IT-1245584-B (IT)
Title: Rotating system for pumps, compressors and various motors
Inventor: FIORONI LUIGI
IPC: F03G/
Filed: 1991-03-22
Granted: 1994-09-29
Abstract: The object of the present patent is an original rotating system, which, by means of combination of two rotational movements, forms within an oval chamber other minor chambers with variable volume. This system is suitable for design of pumps, compressors and motors of different types.  The advantage of the system is not having sliding or engaging parts; of being well balanced and able to support very high rotational conditions. <IMAGE>
Patent IT-1251175-B (IT)
Title: Fritte per vetrine ceramiche prive di piombo, di cadmio e di bario
Inventor: THOMETZEK PETER
IPC: C03C8/04
Filed: 1991-08-13
Granted: 1995-05-04
Abstract: Fritte per vetrine ceramiche che sono caratterizzate da un elevato contenuto di CaO con contemporanei bassi contenuti di B2 O3 o e ZnO.
Patent IT-1251564-B (IT)
Title: Procedimento per formare una regione di isolamento di elementi in un dispositivo a semiconduttore
Inventor: JIN TAE-JE
IPC: H01L21/76
Filed: 1991-09-09
Granted: 1995-05-17
Abstract: Procedimento per formare una regione di isolamento di elementi in un dispositivo a semiconduttore. Uno strato di ossido intermedio è formato su un substrato di semiconduttore di un primo tipo di conduttività e strati di polisilicio e nitruro sono successivamente formati sullo strato di ossido intermedio. Quindi, lo strato di nitruro formato su una regione di isolamento di elementi predeterminata viene selettivamente rimosso, e uno strato di polisilicio, il cui spessore è simile a quello dello strato di nitruro, è formato tra le pareti laterali Interno degli strati di nitruro. Successivamente, lo strato di polisilicio è ossidato, e quindi gli strati di nitruro rimanenti sono rimossi, così da formare uno strato di ossido isolante senza influenzare il substrato. Conseguentemente, la presente invenzione fornisce una regione isolante in cui il cosiddetto fenomeno dei becchi d'uccello e sollecitazioni sul substrato sono ridotti.
Patent IT-1251690-B (IT)
Title: Dispositivo per la misurazione dinamica della densita' delle particelle in una corrente gassosa.
Inventor: HOTGER MICHAEL
IPC: G01N21/53
Filed: 1991-10-14
Granted: 1995-05-19
Abstract: La corrente da misurare relativamente alla densità delle particelle attraversa un tubo di misura costituito da un tubo esterno e da uno interno (1, 4), tra questi due tubi (1, 4) essendo presente uno spazio non utilizzabile (7) a forma di anello cilindrico che sbocca, a valle del tratto di misura (8), nella corrente da misurare. Un corpo anulare (13) che racchiude il tubo di misura (5) all'altezza del tratto di misura (8) comprende delle finestre ottiche (18, 19), che formano contemporaneamente gli elementi di collegamento di fibre ottiche (20, 21), che portano ad una sorgente di radiazioni, rispettivamente ad un'unità di valutazione. Con ciascuna finestra ottica (18, 19) è collegata una camera (16, 17) disposta a monte, le camere essendo munite di ingressi (22, 24) per l'aria di lavaggio. Affinché il dispositivo fornisca risultati affidabili in un grande campo di parametri della corrente gassosa, l'alimentazione degli ingressi (22, 23) dell'aria di lavaggio avviene di preferenza per mezzo di una pompa pneumatica (figura 1) regolata su una corrente della massa d'aria costante.
Patent IT-1252071-B (IT)
Title: Thermoplastic moulding compositions having improved physical/mechanical properties and high moulding temperatures
Inventor: FASULO GIAN CLAUDIO
IPC: C08H/
Filed: 1991-11-25
Granted: 1995-05-29
Abstract: Thermoplastic moulding compositions having optimum mould detachment properties and improved physical and mechanical properties at high moulding temperatures comprising: a) an anti-impact aromatic vinyl copolymer comprising an ethylenically unsaturated cyanide, a vinyl aromatic monomer and a rubber, b) a technical polymer, c) an effective quantity of a release agent comprising a synergistic mixture of an ester of a C16-C18 acid with glycerol and an ester of a C19-C20 saturated aliphatic acid with an aliphatic C4-C6 alcohol, and d) a bis(alkyl-phenyl) pentaerythritol diphosphite. The compositions may also include a grafted polymer having an elastomer core with a Tg of less than 10 degree C and containing grafted vinyl monomer chains.
Patent IT-1254207-B (IT)
Title: Procedimento di fabbricazione di un contenitore in plastica e del relativo coperchio a tenuta stagna e contenitore con coperchio cosi' ottenuti
Inventor: ADAMI GRAZIANO
IPC: B29C45/00
Filed: 1992-02-07
Granted: 1995-09-14
Abstract: L'invenzione si riferisce al settore della tecnica della produzione di contenitori in materia plastica con relativi coperchi a tenuta stagna mediante estrusione in appositi stampi di formazione. Il problema tecnico da risolvere consiste nel costruire in un'unica stampata un contenitore munito di risalto sulla parete laterale interna per formare un accoppiamento a tenuta stagna con il coperchio.L'invenzione risolve i problemi e le difficoltà connessi alla predetta costruzione ponendo in essere un procedimento per la formazione del contenitore (6) con risalto (15) interno e per la formazione del suo coperchio (21) munito di rientranza (22) circolare atto ad inserirsi nel risalto (15) predetto per accoppiarsi ad esso. Il procedimento consiste nell'estrusione della materia plastica nello stampo (4) del contenitore (6) avente una particolare camera (5) per la formazione del risalto (15) e nell'estrusione di detta materia nello stampo (19) del coperchio (21) provvisto di una particolare camera (20) per la formazione della rientranza (22) circolare.
Patent IT-1273334-B (IT)
Inventor: ORJELA GURDEV
IPC: B29B15/14
Filed: 1994-02-24
Granted: 1997-07-08
Abstract: A wire, generally made of steel and used to make composite elements of elastomeric material, is submitted to an electrodeposition process in an electrolytic bath for being coated with a zinc/cobalt alloy in which the average cobalt content is lower than 1%. In the coating thickness made of the zinc/cobalt alloy, different cobalt concentrations exist, that is a 2% to 3% concentration at the area close to the metal and a concentration as low as 0,5% maximum at the overlying area. Adhesion promoters for example consisting of cobalt neodecanate, added to the elastomeric material, promote the adhesion of said elastomeric material to the wire.
Patent IT-1274415-B (IT)
Title: Two- or three-way compensated fluid-separation electric valve
Inventor: PENSA CARLO MARIA
IPC: F16K/
Filed: 1995-05-03
Granted: 1997-07-17
Abstract: Two- or three-way compensated fluid-separation electric valve, essentially comprised of a valve body, with inlet, outlet and fluid drain connections and chambers, separated by appropriate openings that are acted upon by a solenoid-type mechanism with axially sliding movable core, connected to the elements of interception, said electric valve having furthermore two opposite elements able to move in axial direction, integrated with each other and connected to the movable core, which separate the fluid flow chambers from the chambers of movement of the solenoid mechanism and from the outside of the valve, such that the force determined by the hydraulic pressure of the openings is equal to the force of hydraulic reaction of the movable element. <IMAGE>
Patent IT-1261767-B (IT)
Title: Dispositivo per la raccolta e lo scarico sotto pressione delle acque luride provenienti da wc e da apparecchi igienico-sanitari in genere.
IPC: E03D11/11
Filed: 1993-02-11
Granted: 1996-06-03
Abstract: Il dispositivo è formato sostanzialmente da un recipiente di raccolta dei rifiuti provenienti da un WC e/o da altri apparecchi igienico-sanitari, da un sensore di pressione entro detto recipiente, da una pompa azionata indirettamente da detto sensore di pressione, da condotti di scarico collegati a detta pompa per l'invio sotto pressione dei rifiuti stessi, il recipiente essendo completato da un coperchio apribile, a tenuta di liquidi e di esalazioni.Il recipiente è diviso in due scomparti da una parete divisoria, in uno degli scomparti giungendo i liquami mentre nello altro sono raccolti la pompa, con il raccordo allo scarico, un pressostato, il motore di comando della pompa e tutti gli impianti ed accessori elettrici necessari per il funzionamento.
Patent IT-1249427-B (IT)
Title: Composto per esaltare le prestazione umane
Inventor: WURTMAN RICHARD J
IPC: A61P25/02
Filed: 1991-03-05
Granted: 1995-02-23
Abstract: Un composto per esaltare le prestazioni, ad esempio per aumentare il vigore soggettivo, diminuire la fatica, ridurre la confusione soggettiva, e diminuire la tensione e l'ansietà.Il composto comprende una droga simpatomimetica ad azione indiretta e la tirosina o un precursore della tirosina. La droga può essere fenilpropanolammina, anfetamina o efedrina. La tirosina esalta la nota attività della droga nel senso di esaltare le prestazioni.
Patent IT-1257223-B (IT)
Title: Impianto di orditura, particolarmente per orditura a sezioni.
Inventor: BOGUCKI-LAND BOGDAN
IPC: D02H3/00
Filed: 1992-06-09
Granted: 1996-01-10
Abstract: In un impianto per l'orditura di fili elastici, i cilindri sbobinatori (3) in una cantra di bobine vengono azionati con una prima velocità periferica. I successivi cilindri (7, 8) di prelievo sono azionati con una seconda velocità periferica più elevata. L'avvolgimento sul subbio d'ordito presenta una terza velocità periferica ridotta rispetto alla seconda velocità periferica. Al subbio (16) d'ordito è anteposto un cilindro intermedio (19), il quale è azionato con una quarta velocità periferica che è compresa tra la seconda e la terza velocità periferica. Ciò permette di disporre in ordito i fili elastici con una considerevole riduzione del pericolo di incrociamento dei fili stessi, con conseguenti rotture dei fili in questione.
Patent IT-1257616-B (IT)
Title: Bar structure for spectacles
IPC: G02C/
Filed: 1992-09-23
Granted: 1996-02-01
Abstract: This application relates to a bar structure for spectacles which are hinged at one end to a hinge associated with a front part. The special feature of the structure lies in the fact that an elastically deformable member placed between a fixed stop member and a forced moving member at the location of the hinge is associated with the said end. It is thus possible to obtain a bar structure which has a snap closure and permits additional opening beyond 90 degree under the spectacles' conditions of use. <IMAGE>
Patent PT-100001-B (PT)
Inventor: PEET NORTON PAUL
IPC: C07D339/08
Filed: 1992-01-09
Abstract: PCT No. PCT/US91/09387 Sec. 371 Date Dec. 9, 1993 Sec. 102(e) Date Dec. 9, 1993 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11867 PCT Pub. Date Jul. 23, 1992.The invention provides the compounds 1,2-dideoxy-2-(hydroxymethyl)-1-(methylamino)-myo-inositol hydrochloride, 1,2-dideoxy-2-(hydroxymethyl)-1-(methylamino)-scyllo-inositol, 1,6-dideoxy-6-(hydroxymethyl)-1-(methylamino)-myo-inositol.
Patent PT-104072-B (PT)
Title: Ferramenta não consumível modular ajustável e refrigerável para soldadura e processamento por fricção linear
Inventor: SILVA PEDRO MIGUEL DOS SANTOS
IPC: B23K20/12
Filed: 2008-05-26
Abstract: A PRESENTE INVENÇÃO CONSISTE NUM NOVO SISTEMA ESTRUTURAL DE UMA FERRAMENTA PARA OS PROCESSOS TECNOLÓGICOS DE SOLDADURA E PROCESSAMENTO POR FRICÇÃO LINEAR, DE CONCEPÇÃO ROBUSTA, COMPACTA E MODULAR DESCARTÁVEL, QUE PERMITE DIFERENTES COMBINAÇÕES DE PARÂMETROS GEOMÉTRICOS PARA A BASE E PARA O PINO, ESTÁ PREPARADA PARA REFRIGERAÇÃO INTERNA FORÇADA, E É AJUSTÁVEL A DIFERENTES ESPESSURAS DE CHAPAS A SOLDAR, POR MEIO DA VARIAÇÃO DO COMPRIMENTO SALIENTE DO PINO RELATIVAMENTE À BASE. O SISTEMA É COMPOSTO POR UM CORPO DA FERRAMENTA (1), UMA BASE EMBUTIDA (2), UM PINO AJUSTÁVEL (3), OS PARAFUSOS DE FIXAÇÃO DA BASE (4), E UM PERNO ROSCADO DE FIXAÇÃO DO PINO (5).
Patent RO-85559-B (RO)
Inventor: MOGYORODI FERENC
IPC: C07C233/07
Filed: 1983-01-10
Abstract: Inventia se refera la un procedeu pentru prepararea unor cloracetanilide substituite cu formula generala I: (vezi formula) în care R1 si R2, aceasi sau diferiti reprezinta un atom de hidrohen sau un radical alchil sau alcoxi cu 1...8 atomi de carbon, R3 reprezinta un radical alcoxi liniar sau ramificat cu 1...8 atomi de carbon, compusi utilizabili în compozitii erbicide, caracterizat prin aceea ca o anilina cu formula generala II: (vezi formula) în care r1 si R2 sînt diferiti mai sus, este cloracetilata si apoi reactioneaza cu cloroformiat de metil sau reactioneaza cu cloroformiat de metil si apoi este cloracetilata cu agenti de cloracetilare, alesi dintre: clorura de cloracetil, acid monocloracetic+PCl3, acid monocloracetil+POCl3, acid monocloracetic+PCl3+clor gazos, acid monocloracetic+difosgen, la temperaturi între 60 si 105 degree C, dupa care reactioneaza cu un alcool cu formula generala R3H în care R3 are semnificatiile sus-mentionate, la temperaturi între 30 si 60 degree C, eventual, în prezenta de trietilamina ca acceptor de acid.
Patent RO-90775-B (RO)
Inventor: UDO MUSCHNER
IPC: B22D41/34
Filed: 1984-12-13
Abstract: Inventia se refera la o placa de închidere din material refractar la dispozitivele cu sertar glisant utilizate, în scpecial la curgerea dirijata a metalului lichid din oalele de turnare sau recipiente asemanatoare. Placa este prevazuta pe axa longitudinala, cu doua orificii. Unul din aceste oroficii de trecere a metalului lichid este obturat cu un dop, în timpul utilizarii placii cu celalalt orificiu. Dupa degradarea suprafetei din zona primului oroficiu de trecere, orificiul respectiv este obturat si se roteste placa cu cel de al doilea orificiu, pentru a fi adus în pozitia de trecere sau închidere a metalului lichid.
Patent TW-212792-B (TW)
IPC: A01N43/40
Filed: 1992-09-01
Granted: 1993-09-11
Abstract: Compounds of the formula: <CHEM> wherein R<5> and R<6> each independently represents hydrogen, optionally substituted alkyl, aryl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aralkyl, alkaryl, hydroxy, alkoxy, alkenyloxy, alkynyloxy, alkylcarbonyl, alkoxycarbonyl, amino, mono- or di-alkylamino, alkoxycarbonylamino, optionally substituted heterocycle or arylamino, dialkylcarbamoyl, trialkylsilyl or fused ring structure, or together form an alkenylene chain or an alkylene chain which is optionally interrupted by oxygen or sulphur or -NR-, R being hydrogen or alkyl; R<7> represents hydrogen or halogen, or optionally substituted alkyl, alkoxy, aryl or aryloxy, or cyano, carboxy, alkoxycarbonyl, (alkylthio)carbonyl, alkylcarbonyl, amido, alkylamido, nitro, alkenyloxy, alkynyloxy, alkylthio, haloalkylthio, alkenylthio, alkynylthio, alkylsulphinyl, alkylsulphonyl, alkyloximinoalkyl or alkenyloximinoalkyl; R<8> represents halogen, alkyl or haloalkyl; Z represents oxygen or sulphur; m is 0-3; and n is 1-4, and certain intermediates in their production, exhibit herbicidal activity.