baber/WOPTO huggingface dataset:
Patent GB-2603751-A (GB)
Title: A Method for Determining a Play Duration Estimate of an Adaptive Bit Rate Media Presentation
Inventor: CHRISTOPHER BROWN
IPC: H04N21/845
Filed: 2021-01-28
Abstract: A method for determining a play duration estimate of an adaptive bit rate (ABR) media presentation comprises receiving, at a network entity between a client and server, a media playlist manifest file of an ABR media presentation, the media playlist manifest file being transmitted from server to client and comprising a plurality of entries, each linking to a respective different one of a plural media segments of the ABR media presentation. The method further comprises determining a data size of the media playlist manifest file; and determining a play duration estimate of the ABR media presentation based on the determined data size, a first value (e.g. selected based on client device type and/or server type) representing a data size an individual entry (of each) of the plurality of entries in the manifest file, and a second value (e.g. also selected based on server and/or client types) representing a play duration of each media segment of the plural media segments. Play duration may be further based on a third value representing size of data in the manifest file that is data other than that representing plural entries.
Patent GB-2589810-A (GB)
Title: Method for rotating rest of quad-core sensor system in taxi roof light
Inventor: MICHAEL JUN XU
IPC: G01N33/00
Filed: 2019-01-31
Abstract: A quad-core sensor installed in a taxi roof light monitors atmospheric pollution. In an aspect, a detection module comprises four sensors of the same type. In an aspect, a detection module comprises three sensors of the same type, and a low-frequency calibration module comprises one sensor of the same type as in the detection module. The sensors are laser sensors. A gas separation box distributes gas to each sensor. Of the sensors that are working normally, one (102) is selected in rotation to be rested (104) on condition that the other three continue to work, and the system is degraded. Normality may be judged by drift or fluctuation of a sensor, or correlation with other sensors. A sensor may be selected based on fatigue state, temperature, accumulated working time or rest time. The sensors may sense PM1, PM2.5, PM10, PM100, sulphur dioxide, nitrogen oxide, ozone, carbon monoxide, VOCs or TVOCs.
Patent GB-2600502-A (GB)
Title: Container
Inventor: ASHLEY BEARDSALL
IPC: B65D30/08
Filed: 2021-03-31
Abstract: A container 100 moveable, when squeezed, between a flat first configuration and a second configuration comprises: first and second faces (110, 120, fig. 9) joined at first and second opposing sides (102, 104, fig. 12B), and at third and fourth opposing sides (106, 108, fig. 13A); a slit 122 extending across the second face with an apex being closer to the fourth side than end-points of the slit are; a first line of weakness (1, fig. 7) on the second face, extending away from the slit towards the third side; a second line of weakness (2) on the first face, extending from the fourth side, wherein the first and second lines are straight, parallel to the first and second sides, and aligned with the slit apex; and a third line of weakness (3) on the first face, having end-points by the fourth side, and extending away from that side therebetween, further than the slit. The faces bend along the lines of weakness in the second configuration. The apex may be a single turning point or a straight line portion parallel to the third edge. The apex may be located centrally with respect to slit length.
Patent GB-2607115-A (GB)
Title: Method of producing a microneedle array
Inventor: FERDINAND KOHLE
IPC: A61M37/00
Filed: 2021-06-25
Abstract: A method of forming a microneedle array, comprising transforming digital information in a digital input pattern/image into microneedle data defining a desired microneedle pattern, masking holes in a master mould to create an array of unmasked holes corresponding to a desired microneedle pattern, and forming a microneedle array having the desired microneedle pattern using the masked master mould. In another aspect, a microneedle array comprising at least first and second microneedles formed from or comprising a polymer containing or encapsulating a first cargo and a second cargo respectively. In another aspect, a microneedle array for delivering a biosensing tattoo that covers graphical information in response to a change in a sensed parameter. In this aspect, the cargo comprises a bio-sensing material configured to change colour or visibility in response to a change in a sensed parameter. In another aspect, a method of authenticating a first tattoo using a second tattoo, comprising reading authentication information encoded in the second tattoo and authenticating the first tattoo by comparing the authentication information to a database of identifiers associated with registered tattoo artists.
Patent GB-2598845-A (GB)
Title: Electronic device
Inventor: SHUICHI MATSUZAWA
IPC: H04N5/225
Filed: 2016-10-28
Abstract: A camera module 100 attaches to/detaches from an electronic device 200 with a first mount portion M1 and a first mount reference surface MS1. A first connector portion is positioned more toward the centre of the first mount portion. A convex portion 126, inside the first mounting reference surface and outside the first connector portion, has a projection greater than the first mount reference surface. Plural claw portions 141c are on the outside of the first connector portion and the convex portion, which bayonet couple to claw portions on the electronic device. When attached the convex portion fits into a concave portion 226 on the electronic device. Similarly, an electronic device 200 attaches to/detaches from a camera module 100 with a second mount portion M2 and a second mount reference surface MS2. A second connector portion is positioned more toward the centre of the second mount portion. A concave portion 226 is more recessed than the second reference surface. Plural claw portions are on the outside of the second connector portion and the concave portion which bayonet couple to claw portions on the camera module. When attached the concave portion fits into a convex 126 portion on the camera module.
Patent GB-2612027-A (GB)
Title: Sleep promoting device
Inventor: ANDREW CRANE
IPC: B62B9/22
Filed: 2021-10-15
Abstract: The sleep promoting device 100, for encouraging an infant to sleep, can be placed in or on an infant seat or bed, or attached thereto, and induces vibrations using a motor with a driven shaft, a gear system connecting the driven shaft to a rotatable main shaft, and an eccentrically mounted weight. The device 100 may have an ovoid housing body 120 of partly translucent plastics. The housing 120 may have separable halves 120a and 120b which are releasably clipped together, where the two halves meet may be a recessed gasket portion 130 which extends around substantially the entire perimeter of the housing 120. A control panel 140 on the side of the housing includes user-actuatable controls 150. Also disclosed is a device that can be placed in or on an infant seat or bed, or attached thereto, having a vibration apparatus and an air quality monitor.
Patent GB-2596989-A (GB)
Title: Egg-free albumen replacement
Inventor: MINGWEI WANG
IPC: A23L29/269
Filed: 2020-03-25
Abstract: An egg-free albumen replacement includes a starch, an edible gum and a hydrolyzed pea protein. The egg-free albumen replacement can include the hydrolyzed pea protein in an amount of 3 to 75 wt.%, based on the combined weights of the starch, edible gum and hydrolyzed pea protein in the replacement composition. At least some of the hydrolyzed pea protein in the egg- free albumen replacement can include partially hydrolyzed pea protein.
Patent GB-2610659-A (GB)
Title: Graphics processing systems
Inventor: MARK STEPHEN BELLAMY
IPC: G06T15/00
Filed: 2021-11-29
Abstract: When rendering a frame, e.g. that is to be used for rendering subsequent frames to be rendered, two versions of the frame are rendered, wherein the first version of the frame is rendered in its entirety 301 but only a portion of the second version of the frame is rendered 806. The rendered portion of the second version of the frame is compared to a corresponding rendered portion of the first version of the frame 809. When the comparison determines that the two portions of the two versions match, the frame is, e.g. used for rendering subsequent frames 311 but when the comparison determines the two portions of the two versions do not match an error operation is performed 315.
Patent GB-2615585-A (GB)
Title: Valves
Inventor: BRYN MORGAN
IPC: B60C29/06
Filed: 2022-02-14
Abstract: A valve for a bicycle tyre inflator has first and second main body parts, which slide relative to one another, and which are preferably biased, by a spring, towards a closed position. The first main body part has an opening for sealingly receiving a valve stem of a tyre to be inflated. The second main body part has a fitting to connect the valve to a compressed gas cylinder, and a stem with an internal bore and an egress aperture. The valve is closed when the egress aperture is axially located between a pair of O-ring seals surrounding the stem. Conversely, the valve is open when the first and second main body portions are slid, preferably against the action of the spring, such that the egress aperture is located axially to one side of the pair of O-ring seals, thus forming a continuous fluid pathway to permit inflation gas from the compressed air cylinder to flow into the sealingly connected valve stem.
Patent GB-2619078-A (GB)
Title: A trailer braking system
Inventor: DUDLEY HARRISON
IPC: B60T13/38
Filed: 2022-05-27
Abstract: A trailer braking system including: a spring brake (58; fig. 1) spring applied and released by (e.g. pneumatic) pressure; a spring brake control valve (10; fig. 1) controlling pressure to the brake; an immobiliser 80, e.g. valve 84, controlling pressure to the control valve; and a temporary override valve 200. The override valve 200 has an override position (as in figure 3b, 4b, 5b) and an inactive position, and is able to move between these independently of supply line 44 pressure. In the override position with supply line 44 unpressurised: immobiliser remains in immobilise position preventing movement of control valve, and spring brake remains in apply position. In the override position with supply line 44 pressurised: immobiliser moved to brake release position and supply line 44 connected to control valve such that the spring brake is released. The immobiliser 80 prevents the trailer from rolling when disconnected from a tractor. The temporary override valve 200 can be activated by a driver before or when trailer is disconnected, to use as an alternative shunt functionality to shunt valve 46 when the trailer is connected to a supply line source before being moved, e.g. in ports.
Patent GB-2607476-A (GB)
Title: Storage class memory
Inventor: DANIEL MOERTL
IPC: G06F12/06
Filed: 2020-12-09
Abstract: A memory system and method for storing data in one or more storage chips includes: one or more memory cards each having a plurality of storage chips, and each chip having a plurality of dies having a plurality of memory cells; a memory controller comprising a translation module, the translation module further comprising: a logical to virtual translation table (LVT) having a plurality of entries, each entry in the LVT configured to map a logical address to a virtual block address (VBA), where the VBA corresponds to a group of the memory cells on the one or more memory cards, wherein each entry in the LVT further includes a write wear level count to track the number of writing operations to the VBA, and a read wear level count to track the number of read operations for the VBA mapped to that LVT entry.
Patent GB-2611215-A (GB)
Title: Optimizing control actions of a control system via automatic dimensionality reduction of a mathematical representation of the control system
Inventor: ALEXANDER ZADOROJNIY
IPC: G05B19/418
Filed: 2021-04-21
Abstract: A method for automatically reducing the dimensionality of a mathematical representation of a controlled application system is provided. The method includes receiving, at a control system, data corresponding to control action and system state variables relating to the controlled application system, fitting a constrained reinforcement learning (CRL) model to the controlled application system based on the data, and automatically identifying a subset of the system state variables by selecting control action variables of interest and identifying system state variables that drive the CRL model to recommend each control action variable of interest. The method also includes automatically performing state space dimensionality reduction of the CRL model using the subset of system state variables, estimating a transition probability matrix for a constrained Markov decision process (CMDP) model of the controlled application system, and formulating the CMDP model as a linear programming (LP) problem using the transition probability matrix and several costs.
Patent GB-2616744-A (GB)
Title: Rotary atomisers
Inventor: Christopher Beesley
IPC: B05B3/10
Filed: 2020-09-22
Abstract: A rotary atomiser spindle arrangement comprising a rotary atomiser spindle having a shaft 1a which is journaled for rotation in a main body of the rotary atomiser spindle and a bell cup 2 releasably mounted on the shaft. The bell cup has a bell portion 21 for spraying media during rotation in use and a mounting portion 22 via which the bell cup is mounted on the shaft. The shaft and mounting portion of the bell cup comprise respective complimentary taper portions 11, 23 which form an interference fit with each other when the bell cup is mounted on the shaft so locating in the bell cup in relation to the shaft. The rotary atomiser spindle arrangement comprises a bell cup retention arrangement 5, (24 figure 3) having retention biasing means for urging the complimentary taper portions against one another when the bell cup and shaft are at a first relative rotational position with respect to one another whilst the bell cup retention arrangement allows at least demounting of the bell cup from the shaft when the bell cup and shaft are at a second relative rotational position with respect to one another.
Patent GB-2619209-A (GB)
Title: Conductor cable and method
Inventor: JUAN FRANCO
IPC: G02B6/44
Filed: 2022-02-18
Abstract: A cable core including a body, a recess in the body, and a protrusion extending radially outwardly from the body and along the recess. A cable including a cable core having a body, a recess in the body, and a protrusion extending radially outwardly from the body and along the recess, a cladding disposed radially outwardly of the cable core and having an inside diameter in loaded contact with the protrusion, and a conductor disposed in the recess.
Patent GT-200200053-A (GT)
Title: Derivados espirociclicos nuevos y su uso como inhibidores de fosfodiesterasa-7
Inventor: BERNARDELLI PATRICK
IPC: C07D403/12
Filed: 2002-03-20
Abstract: LA PRESENTE INVENCION SE REFIERE A DERIVADOS ESPIROCICLICOS DE FORMULAS GENERALES (I), (II), (III), EN DONDE X,X1,X2,X3,X4,Y,A,Z,Z1, SON GRUPOS FUNCIONALES DESCRITOS EN EL EXPEDIENTE. ESTOS COMPUESTOS SON INHIBIDORES DE LA FOSFODIESTERASA7 (PDE7) POR LO QUE SE REDUCE LA HIDROLISIS DEL AMP CICLICO, POR LO TANTO SON UTILES EN CASOS DE ENFERMEDADES AUTOINMUNES TALES COMO SIDA Y TAMBIEN EN CUADROS DE ARTRITIS REUMATOIDE, OSTEOARTRITIS.
Patent GT-200600303-A (GT)
Title: Compuestos organicos
Inventor: SEDELMEIER GOTTFRIED
IPC: C07D257/02
Filed: 2006-07-10
Abstract: LA PRESENTE INVENCIÓN SE REFIERE A UN MÉTODO O PROCESO PARA LA FABRICACIÓN DE AGENTES REDUCTORES DE LA PRESIÓN SANGUÍNEA CUYA ESTRUCTURA QUÍMICA, LA CUAL PUEDE APRECIARSE EN EL PRESENTE RESUMEN, SE REFIERE A INTERMEDIARIOS NOVEDOSOS, ASÍ COMO A LOS PASOS NECESARIOS PARA SU SÍNTESIS.
Patent GT-201400056-A (GT)
Title: Proteínas de función dual para tratar trastornos metabolicos
Inventor: BOETTCHER BRIAN R
IPC: C07K14/605
Filed: 2014-03-26
Abstract: LA PRESENTE INVENCIÓN SE REFIERE A LA IDENTIFICACIÓN DE NUEVAS PROTEÍNAS QUE COMPRENDEN EL FACTOR DE CRECIMIENTO DE FIBROBLASTOS 21 (FGF21) Y OTROS REGULADORES METABÓLICOS, INCLUYENDO VARIANTES DE LOS MISMOS, CONOCIDOS POR MEJORAR LOS PERFILES METABÓLICOS EN SUJETOS EN QUIENES SE ADMINISTREN. TAMBIÉN SE DIVULGAN MÉTODOS PARA TRATAR TRASTORNOS ASOCIADOS CON EL FGF21, TRASTORNOS ASOCIADOS CON GLP-1, Y TRASTORNOS ASOCIADOS CON EXENDINA-4, INCLUYENDO CONDICIONES METABÓLICAS.
Patent IN-2014MU00327-A (IN)
Inventor: JAYANT DESHPANDE DR
IPC: A23L27/18
Filed: 2014-08-19
Abstract: The present invention particularly relates to an extended and sustained release stable, free flowing, solid composition of capsicum extract or capsaicinoids and/or analogs thereof and a process for its preparation. The said composition eliminates the discomfort by facilitating complete intestinal absorption of the active ingredient and thereby minimizing/ eliminating the discomfort caused by the residual unabsorbed active ingredient. The extended and sustained release stable, free flowing, solid microspheres of the present invention are particularly suitable for formulating into consumable dry syrups, tablets, capsules, liquid syrups, health drinks, diet drinks, fruit juices, soft drinks and the like which are useful in reduction of body weight.
Patent KR-830002009-A (KR)
Title: 반접착성 조성물
IPC: C08L91/08
Filed: 1980-02-16
Abstract: 내용 없음
Patent KR-830003622-A (KR)
Title: 염색 섬유제품의 세정방법
IPC: C11D1/66
Filed: 1980-09-13
Abstract: 내용 없음
Patent KR-830005544-A (KR)
Title: 구강 조성물
IPC: F25D11/00
Filed: 1981-03-24
Abstract: 내용 없음
Patent KR-830006298-A (KR)
Title: 설폰 아미드의 제조방법
Filed: 1981-08-22
Abstract: 내용 없음
Patent KR-830009322-A (KR)
Title: 토양의 경화 방법
Filed: 1982-01-23
Abstract: 내용 없음
Patent KR-830009703-A (KR)
Title: 신호 신장기
IPC: H03G7/00
Filed: 1982-01-26
Abstract: 내용 없음
Patent KR-830010424-A (KR)
Title: 휴대형 단말장치
IPC: G06Q20/00
Filed: 1982-04-02
Abstract: 내용 없음
Patent KR-830010140-A (KR)
Title: 에스테르 공중합체 및 이온성 공중합체를 포함하는 고충격저항 나일론 조성물
IPC: C08L23/26
Filed: 1982-05-08
Abstract: 내용 없음
Patent KR-840000791-A (KR)
Title: 고체 질량흐름의 개선된 지시장치
IPC: G01F3/24
Filed: 1982-06-18
Abstract: 내용 없음
Patent KR-840000312-A (KR)
Title: 충격식 및 회전식 공구용 공구샤프트
IPC: B25D17/08
Filed: 1982-07-23
Abstract: 내용 없음
Patent KR-840000693-A (KR)
Title: 전도성 탄성체 직물 및 그로부터 제조된 전도성 신체착용 스트랩(strap)
IPC: A61N1/14
Filed: 1982-07-27
Abstract: 내용 없음
Patent KR-840001734-A (KR)
Title: 패턴 식별 장치 및 방법
IPC: G06T7/00
Filed: 1982-09-30
Abstract: 내용 없음
Patent KR-850002245-A (KR)
Title: 칼사이트계 탄산칼슘의 제조방법
IPC: C01F11/18
Filed: 1983-09-06
Abstract: 내용 없음
Patent KR-850005090-A (KR)
Title: 광각(廣角)을 포함하는 가변 배율 줌 렌즈
IPC: G02B15/14
Filed: 1983-12-31
Abstract: 내용 없음
Patent KR-840007879-A (KR)
Title: 이미다조-헤테로싸이클 화합물의 제조방법
IPC: C07D279/10
Filed: 1984-02-22
Abstract: 내용 없음
Patent KR-850004882-A (KR)
Title: 정합된 타이밍의 다이나믹 회로와 스태틱회로를 갖는 반도체장치
IPC: G11C11/407
Filed: 1984-11-27
Abstract: 내용 없음
Patent KR-850000525-A (KR)
Title: 재조합 dna기법에 의한 인체 igf 및 egf제조
IPC: C12P21/00
Filed: 1984-06-05
Abstract: 내용 없음.
Patent KR-850001906-A (KR)
Title: 치환된 페닐설포닐 구아니딘 및 그의 중간체의 제조방법
IPC: C07D521/00
Filed: 1984-08-10
Abstract: 내용 없음
Patent KR-850001897-A (KR)
Title: α-6-데옥시-데트라 싸이클린의 제조방법
IPC: C07C231/12
Filed: 1984-08-16
Abstract: 내용 없음
Patent KR-850004228-A (KR)
Title: 용기구성판체 및 용기
IPC: B65D5/54
Filed: 1984-08-21
Abstract: 내용 없음
Patent KR-850002572-A (KR)
Title: 피발로락톤을 기초로한 블럭 공중합체의 합성방법
IPC: C08F297/00
Filed: 1984-09-07
Abstract: 내용 없음
Patent KR-850002851-A (KR)
Title: 금속으로 충전된 유기피복 및 그의 제조방법
IPC: B05D7/14
Filed: 1984-09-19
Abstract: 내용 없음
Patent KR-860006947-A (KR)
Title: 쑥 음료수 제조방법
Filed: 1985-03-13
Abstract: 내용 없음
Patent KR-850007534-A (KR)
Title: 컬러수상관용 전자총
IPC: H01J29/50
Filed: 1985-04-03
Abstract: 내용 없음
Patent KR-860002011-A (KR)
Title: 온도계 보호관 집합체
IPC: G01K1/12
Filed: 1985-05-14
Abstract: 내용 없음
Patent KR-860002676-A (KR)
Title: 분해가능한 시이트를 지니는 글로우브 밸브
IPC: F16K27/02
Filed: 1985-09-26
Abstract: 내용 없음
Patent KR-860004261-A (KR)
Title: 유체밀봉 피복물 및 이의 제조방법
IPC: B05D5/00
Filed: 1985-10-12
Abstract: 내용 없음
Patent KR-860004217-A (KR)
IPC: E04G11/00
Filed: 1985-11-08
Abstract: There is described a prefabricated module comprising a three-dimensional armature formed by welded wires, and flat elements from light and/or heat-insulating material, retained on either side of the armature to form at least one continuous panel. One and the same module may be used either for bearing structures extending vertically, or for bearing structures extending horizontally, and having retaining means for the armatures.
Patent KR-850700277-A (KR)
Title: 합성수지 매트릭스에 분산된 액정으로 이루어진 광 변조제
IPC: G02F1/1334
Filed: 1985-03-08
Abstract: 내용 없음
Patent KR-870007404-A (KR)
Title: 에어콘의 난방 제어장치
Filed: 1986-01-22
Abstract: 내용 없음
Patent KR-860009071-A (KR)
Title: 중합체의 필름
IPC: C08L67/02
Filed: 1986-05-20
Abstract: 내용 없음
Patent KR-870011477-A (KR)
Title: 암류에 의한 다용도 이격(離隔)측정방법
Filed: 1986-05-21
Abstract: 내용 없음
Patent KR-870005068-A (KR)
Title: 윤활류의 제조 공정
IPC: C10G45/64
Filed: 1986-11-01
Abstract: 내용 없음
Patent KR-880001500-A (KR)
Title: 절첩이 자재로운 콘테이너
IPC: B65D6/18
Filed: 1986-11-17
Abstract: 내용 없음
Patent KR-870005707-A (KR)
Title: 콤팩트된 섬유 시이트로 구성된 롤의 제조공정
IPC: B32B15/14
Filed: 1986-12-09
Abstract: 내용 없음
Patent KR-870006001-A (KR)
IPC: A01N47/38
Filed: 1986-12-20
Abstract: Compounds of formula I in which X, Y and Z have various meanings, are described, as well as processes for their preparation and their use as insecticides and acricides.
Patent KR-880008629-A (KR)
Title: 칼라 텔레비죤 수상기에 있어서 명도(휘도) 신호 및 색신호 방해 경감회로
IPC: H04N5/21
Filed: 1986-12-31
Abstract: 내용 없음.
Patent KR-880010555-A (KR)
Title: 전자식 모터 제어센터(mcc)에서의 y-△ 기동처리 방법
IPC: H02P1/32
Filed: 1987-02-16
Abstract: 내용 없음
Patent KR-880011049-A (KR)
Title: 퇴비용 발효제 제조방법
Filed: 1987-03-16
Abstract: 내용 없음
Patent KR-880011297-A (KR)
Title: 가루풀 제조방법
Filed: 1987-03-28
Abstract: 내용없음
Patent KR-880012455-A (KR)
IPC: B65F9/00
Filed: 1987-04-24
Abstract: A trash collection and removal system has a horizontal set-up surface with a plurality of standing stations for several vertically disposed cylindrical trash silos having respective pivotable covers at the two axial ends. A horizontal loading surface traveled by trash collection vehicles is arranged above the set-up surface by a distance approximately equal to the axial length of the silos. By means of this system, the costs for transport of the trash to dump sites or to incineration facilities can be substantially reduced.
Patent KR-880005447-A (KR)
Title: 타이어로 인한 종방향력 예보장치 및 방법
IPC: G01M17/02
Filed: 1987-05-01
Abstract: 내용 없음
Patent KR-870010779-A (KR)
Title: 펜디메탈린을 갖는 수성 현탁농축 조성물 및 그 제조방법
IPC: A01N43/52
Filed: 1987-05-23
Abstract: 내용 없음
Patent KR-880000016-A (KR)
Title: 빵의 제조방법 및 그 제조장치
IPC: A21D8/00
Filed: 1987-06-20
Abstract: 내용 없음
Patent KR-890003202-A (KR)
Title: 플라이백 트랜스포머에서 인쇄패턴을 이용한 저압권선방법
IPC: H04N3/19
Filed: 1987-07-31
Abstract: 내용 없음
Patent KR-880003913-A (KR)
IPC: C07D217/04
Filed: 1987-09-11
Abstract: The present invention relates to new naphthyl derivatives of general formula    <IMAGE>  (I)  wherein N represents the number 1 or 2, A represents a -CH2-, -CO-, -CH2CH2-, -CH=CH-,   <IMAGE>  while the atom marked with an x is linked to the phenyl nucleus, E represents a straight chained alkylene group optionally substituted by an alkyl group, G represents a straight chained alkylene group optionally substituted by an alkyl group, L represents a bond or an oxygen atom, if G represents a straight chained alkylene group with 2 to 5 carbon atoms optionally substituted by an alkyl group, R1 and R2, which may be identical or different, represent alkyl or alkoxy groups or R1 and R2 together represent an alkylenedioxy group, R3 represents a hydrogen atom, or an alkyl or an allyl group, R4, R5 and R6, which may be identical or different, represent hydrogen atoms, alkyl or alkoxy groups, the enantiomers and the acid addition salts thereof, which have valuable pharmacological properties, particularly a heart rate lowering activity. The new compounds may be prepared using methods known per se.