baber/WOPTO huggingface dataset:
Patent KR-200487757-Y1 (KR)
Title: 머리 보호대
IPC: A63B71/10
Filed: 2018-08-20
Granted: 2018-10-30
Abstract: 본 고안에 의한 머리 보호대는, 모자의 일측 외면에 결합되는 한 쌍의 체결스트랩; 상기 모자의 일측 외면을 덮도록 안착되되 가운데 일부가 상기 모자의 외측면과 이격되며, 상기 한 쌍의 체결스트랩이 관통되는 한 쌍의 체결공을 구비하는 보호패널;을 포함하고, 상기 한 쌍의 체결스트랩은 상기 한 쌍의 체결공을 관통한 후 결합되어 상기 보호패널을 상기 모자의 일측 외면에 고정시킨다. 본 고안에 의한 머리 보호대는 경량이면서 외관이 미려하여 활용성이 높을 뿐만 아니라 기존 야구모자를 착용하는 것과 같이 착용감이 우수하고, 기존의 모자에 착탈 가능하도록 장착되므로 경제성이 우수하며, 충격흡수율이 높아 사용자의 머리를 보다 효과적으로 보호할 수 있다는 장점이 있다.
Patent KR-200496556-Y1 (KR)
IPC: G01D11/24
Filed: 2020-12-24
Granted: 2023-02-24
Abstract: 본 고안은 작업에 필요한 구조의 편의성은 물론, 측정용 케이블의 정리가 용이하여 작업의 편의성을 제공할 수 있는 방식전위측정함에 관한 것으로, 더욱 상세하게는 원판의 형상으로 이루어지되 외면에는 한 쌍의 체결공이 형성된 상부몸체 및 관의 형상으로 이루어지되 상부에는 상기 상부몸체가 삽입되어 체결수단에 의해 서로 결합하며, 내부에는 배관의 방식전위측정 케이블부재가 설치된 하부몸체를 포함하되, 한 쌍의 상기 체결공 중 어느 하나는 상기 상부몸체 상면에서 하면까지 이어지게 천공 형성되며, 상기 방식전위측정 케이블부재는 전위측정용과 배관위치탐지용으로 구분되어 상기 하부몸체에 개별설치되는 것을 특징으로 한다.
Patent KR-200496164-Y1 (KR)
Title: 착용이 간편한 신발
IPC: A43C11/14
Filed: 2021-06-20
Granted: 2022-11-16
Abstract: 착용이 간편한 신발이 개시된다. 본 고안의 신발은 신발의 본체, 중심선을 기준으로 상부와 하부가 대칭적인 형상을 가지는 뒤축부, 신발 본체와 뒤축부 사이에 형성되는 절삭부, 일부가 상기 뒤축부의 중심선에 결합되고 양 끝단은 상기 본체에 결합되어, 상기 뒤축부를 상기 본체에 결합시키며, 상기 뒤축부와 함께 회전하는 결합봉, 및 상기 뒤축부 내에 구비되어, 상기 결합봉을 회전축으로 하여 상기 뒤축부를 180도 단위로 회전하기 위한 기어부를 포함하고, 상기 뒤축부는 상기 신발의 착용시에는 발의 힘에 의하여 상기 상부가 상기 신발 안쪽 방향으로 회전하고 상기 하부는 상기 신발의 바깥쪽 방향으로 회전하여 상기 상부와 상기 하부의 위치가 역전되며, 상기 상부와 상기 하부의 위치가 역전된 상태에서 신발 착용시 발의 힘에 의하여 상기 하부가 상기 신발 안쪽 방향으로 회전하고 상기 상부가 상기 신발의 바깥쪽 방향으로 회전하여 상기 상부와 상기 하부의 위치가 제자리로 복원됨으로써, 착용이 간편하다.
Patent KR-200495599-Y1 (KR)
IPC: F16L57/00
Filed: 2022-01-05
Granted: 2022-07-05
Abstract: 본 고안은 삽입형 배관 보호커버에 관한 것으로서, 보다 상세하게는, 매립된 배관의 유지보수를 위해 노출 시 노출된 부분이 외부충격에 의한 손상 및 파손을 방지할 수 있도록 간편하게 설치하여 보호할 수 있는 삽입형 배관 보호커버에 관한 것이다.
Patent PH-22018000095-Y1 (PH)
Title: Process of making sweet-sour tilapia (oreochromis niloticus) fillet
Inventor: MOLINA LENIMFA P
IPC: A23L17/00
Filed: 2018-02-08
Abstract: The sweet - sour tilapia fillet is a convenient stable value - added food product characterized as having a light cream color with the preferred slight fishy odor and a palatable taste. The product was liked very much by the consumers. This product is an additional variant to existing protein- packed food to be served in every Filipino household. The preparation of the sweet - sour tilapia fillet starts with thoroughly washing and cleaning the tilapia. Remove the fins and split the tilapia, remove the internal organs. Debone the splitted tilapia to produce fillets, then weigh 1 kilogram of the fillet and set aside. In a separate container, make a 20 pcnt brine solution by mixing 200 grams salt in 1,000 ml water. Mix well until all the salt is dissolved. Using a cheesecloth, filter the brine solution to remove dirt and unnecessary debris. Add other ingredients to make the marinating solution like 350 grams white vinegar, 400 grams water, 100 grams white sugar 23.4 grams garlic powder 20.1 grams ground black pepper 2.0 grams ground bay leaf. Simmer the solution for 15 minutes then cool. Filter the cooled solution with the use of a cheese cloth. Refrigerate the solution for 5 minutes to cool. Soak the fillet in the cool marinating solution for 15 minutes. Refrigerate to keep the solution cool while marinating. Remove the fillets from the solution, strain to drain, vacuum pack and store in a freezer.
Patent PH-22018000849-Y1 (PH)
Title: Sequential pretreatment of agricultural biomass wastes for increased biogas production
Inventor: MAGOMNANG ANTONIO-ABDU SAMI M
IPC: C12P5/00
Filed: 2018-09-05
Abstract: The present utility model related to the sequential pretreatment comprising the addition of determined optimum concentration of sodium hydroxide to the biomass subjected to ultrasound waves and treating with liquid hot water. This method utilizes (3 pcnt and 45 w/v) sodium hydroxide and employs ultrasound waves and liquid hot water that increases biogas yield as compared to the existing related processes.
Patent PH-22018000884-Y1 (PH)
Title: Composition of making marang (artocarpus odoratissimus) pudding
Inventor: PABELONA RECHIE D
IPC: A23L9/00
Filed: 2018-09-06
Abstract: The utility model discloses marang (Artocarpus odoratissimus) pudding and production method thereof, which employs good quality marang pulp as the main component of the product and honey (substitute to of sugar), milk, egg yolks, gelatine, water and extra fresh marang pulp for garnishing as the ingredients, and the production method comprise the following steps: processing the marang pulp and mixing all the ingredients, etc. The marang (Artocarpus odoratissimus) pudding provided by the utility model has the advantages in terms of health benefits.
Patent BR-202012009909-Y1 (BR)
Title: disposição introduzida em forno de lastro
Inventor: LUIZ EDUARDO ROSA REZENDE
IPC: A21B1/26
Filed: 2012-04-27
Abstract: disposição introduzida em forno de lastro o presente resumo refere-se a uma patente de modelo de utilidade para forno de lastro (1), pertencente ao campo dos e- quipamentos de preparo de alimentos compreendido dispositivo de controle de geração uniforme de vapor dentro do forno (20), via o controle de fornecimento de água para o vaporizador compreendido, essencialmente: por sensor de vazão (bloco 21) com precisão em milímetros com a parte de circulação fluída intercalada entre o ponto de fornecimento de água (6) e a válvula solenóide (bloco 22) que alimenta água ao vaporizador (bloco 23) do forno; por circuito contador de vazão (bloco 24) que recebe sinais elétricos de contagem (25) do sensor de vazão (bloco 21), processa esses sinais e em função dessa contagem gera sinais de comando (26) para o solenóide da válvula (bloco 22) e arranjado para manter a válvula solenóide (bloco 22) aberta por tempo inversamente proporcional à pressão de água na rede de alimentação.
Patent BR-202015011660-Y1 (BR)
Title: estojo para guardar e organizar bobinas de linhas de máquinas de costura e demais acessórios de costura
Inventor: José Henrique Messias
IPC: D05B91/14
Filed: 2015-05-20
Abstract: RESUMO ESTOJO PARA GUARDAR E ORGANIZAR BOBINAS DE LINHAS DE MÁQUINAS DE COSTURA E DEMAIS ACESSÓRIOS DE COSTURA, compreendendo um estojo (1) formado por duas partes prismáticas iguais (2) passíveis de serem articuladas por articulações (3) tipo macho-fêmea, ao passo que o travamento entre as ditas partes é feito por dentes (4) e correspondentes rebaixos (4A), tipo macho-fêmea; cada mencionada parte prismática (2) incorpora internamente encaixes em ?U? (5) distribuídos em suas paredes internas (6), encaixes (5) estes dispostos de forma a receber, em pontos alinhados e correspondentes, os suportes de pinos (7), mediante terminais em ?T? (8); o suporte de pinos (7) é uma peça em ?U?, posicionados transversalmente ao estojo (1), projetando abas (9) paralelas às paredes internas (6), de modo que cada aba (9) intercale, em alinhamento longitudinal, um pino (10) em relação a outro pino (11) incorporado no contorno em ?U? (12) do suporte de pinos (7), onde cada mencionado pino (11) recepciona uma bobina (B); a extremidade de cada pino (10) e (11) é provida de dispositivo tipo pinça (13), na forma de uma aleta com movimento elástico; ao passo que, entre os conjuntos de suportes de pinos (7) se configura, no interior do estojo (1), uma superfície livre para posicionamento de um estojo menor (14) de acessórios.
Patent BR-202018069031-Y1 (BR)
Title: Mancal para discos de grades aradoras e niveladoras agrícolas
Inventor: Renato José Mastropietro
IPC: A01B76/00
Filed: 2018-09-19
Abstract: MANCAL PARA DISCOS DE GRADES ARADORAS E NIVELADORAS AGRÍCOLAS. O mancal compreende uma carcaça (10) tendo um primeiro extremo (10a) vazado e um segundo extremo (10b) fechado por uma tampa anelar (20) e recebe um eixo (30) provido de: um ressalto central (31) com duas faces anelares (31a e 31b) opostas; duas porções de mancalização (32); duas porções de vedação (33); e duas porções extremas (34) projetando-se para fora da carcaça tubular (10). O mancal compreende duas buchas (50), auto lubrificantes, travadas no interior da carcaça (10) e suportando, interna e deslizantemente, uma porção de mancalização (32) do eixo (30). As buchas (50) são deslizantemente assentadas, por um lado, contra uma confrontante face anelar (31a, 31b) do ressalto central (31) do eixo (30) e, por outro lado, são travadas contra um primeiro degrau interno (11) da carcaça (10), para uma bucha (50), e contra um ombro anelar interno (24) da tampa anelar (20), para a outra bucha (50). Um retentor (60) é deslizantemente assentado em torno de cada porção de vedação (33) do eixo (30), atuando entre a adjacente bucha (50) e um segundo degrau interno (12) da carcaça (10), para um dos retentores, e um degrau interno (25) da tampa anelar (20), para o outro retentor (60).
Patent JP-H0542249-Y2 (JP)
IPC: A47C3/00
Filed: 1990-11-26
Granted: 1993-10-25
Abstract: In a furniture chassis having a holding part such as a chair seat element (2) and one or more elongate construction parts such as legs (6, 10) the construction parts are joined to the holding part (2) by means of conical end tenon portions (8) forced into correspondingly conical holes (4) in the holding part (2). The tenon portions (8) are of pronounced non-circular cross section, and they are conical from the full cross sectional contour of the construction parts (6, 10), thus without showing any shoulder portion abutting the outside of the holding part (2).
Patent IT-221693-Z2 (IT)
IPC: F16L33/22
Filed: 1991-03-13
Granted: 1994-09-13
Abstract: A nipple joint (10) has a base body (11) in which is coupled an insert (12) having a spigot (13) on which is fitted the end of a tube (14). On the tube (14) is fitted a radial compression ring (15) to lock it to the spigot (13). To provide radial compression of the ring (15), between it and a screw tightening collar (17) is placed a bush (16) having a truncated cone internal surface (23) which is pushed axially onto said ring (15) upon screwing down of the collar (17) so as to provide a radial force component on the ring (15). Thanks to this embodiment it is advantageously possible to use a base body (11) and a collar (17) to connect tubes of different diameters and thicknesses by simply adopting an insert (12), a ring (15) and a bush (16) of suitable dimensions. <IMAGE>
Patent CR-6210-A (CR)
Title: Composiciones de celecoxib
Inventor: DANCHEN GAO
IPC: A61K9/20
Filed: 2000-07-27
Abstract: Se proporcionan composiciones farmacéuticas que comprenden una o más unidades de dosis o formas las cuales comprende celecoxib particulado en una cantidad de aproximadamente 10 a aproximadamente 1000 mg. en mezcla íntima con uno o más excipientes farmacéuticamente aceptables. Las composiciones son útiles en el tratamiento o profilaxis de condiciones y trastornos mediados por la ciclooxigenasa-2.
Patent CR-8063-A (CR)
Inventor: AJIT MISHRA
IPC: A61B17/322
Filed: 2005-10-28
Abstract: A tissue processing system includes a series of blades arranged in parallel to form a tissue processor. The blades may be adjusted to create a spaced between each blade in the range of 250-1000 microns. A slicer is included to remove a donor tissue to be processed by the processor. The processor is rotatable 90 degrees so as to create uniform micrografts of tissue for transplanting to a recipient site. An extractor is included to remove tissue particles from the processor after they have been cut into an appropriate size. A cutting block may be provided to ensure uniform thickness of cuts of the donor tissue.
Patent CR-9929-A (CR)
Title: Nuevos compuestos
Inventor: PAUL MARTIN GORE
IPC: C07D487/04
Filed: 2008-04-25
Abstract: Los derivados de pirrolopirimidina de formula (i) son inhibidores de Tirosina Quinasa Esplenica (Syk) y por lo tanto de potencial terapeuticamente beneficioso en el tratamiento de enfermedades y afecciones asociadas con la actividad inapropiada de Syk, en particular en el tratamiento de enfermedades inflamatorias y alergica.
Patent EG-15872-A (EG)
Title: Conveyor roll for conveying heated glass sheets
IPC: B65G39/02
Filed: 1983-01-05
Granted: 1987-03-30
Abstract: Apparatus for handling heated glass sheets is disclosed as being embodied by a conveyor roll (20,21,20 min ) for conveying heated glass sheets (6) on a horizontal roller conveyor of a glass sheet processing system. The conveyor roll includes a shaft (42,70,42) having a support (44,72,80) of aromatic polyamide fibers for engaging the conveyed glass sheets. Kevlar fibers are preferably utilized for the support (44,72,80) so as to have the requisite thermal stability and resistance to cutting by broken glass. The Kevlar support is also useful on other apparatus for handling heated glass sheets such as, for example, molds used in glass bending systems, etc.
Patent GB-1286361-A (GB)
Title: Multi-position switches
IPC: H01H27/06
Filed: 1970-01-01
Abstract: 1286361 Latching switches G MERTEN and W MERTEN [trading as MERIT WERK MERTON & CO KG] 1 Jan 1970 [13 Feb 1969] 17/70 Heading H1N A switch having at least three positions has a spring-loaded shoe 5 sliding against a system of ramps, steps and guides, and it is only possible to move the switch to the second position directly from the first position. From a third position it must be moved through the first position to return to the second position. As shown, ramps 2, 3 are separated by guide 2d. From the first position, shoe 5 slides up ramp 2, from low part 2a to high part 2b until it falls off the edge 2c to the second position. Return movement is up ramp 3 and over the vertical edge 3a to a third position, then up ramp 3b back to its original position. Edge 3a stops shoe 5 moving directly back from the third position to the second position. It is stated that the assembly is intended for use in ignition switches to ensure that the ignition is switched off before actuating the starter switch again in order to prevent damage to the starter.
Patent GB-997097-A (GB)
Title: Insulating brick
IPC: E04C2/04
Filed: 1962-01-01
Abstract: 997,097. Building units. VERAN COSTAMAGNA & CIE. Jan. 1, 1962 [April 17, 1961; July 19, 1961], No. 71/62. Heading E1B. A hollow brick of ceramic or cement comprises a part 2 having passages and partitions disposed to give the part structural strength, and a part 1 of less strength having passages filled with an insulating material 3. A panel may be formed by casting concrete about a number of bricks arranged side by side and glass wool or strips of expanded polystyrene may be placed between the bricks to improve the insulation. In one embodiment panel bricks in adjacent courses are turned through 180 degrees relative to each other. A foam of polyurethane is injected into each brick to provide the insulation 3 and the bricks are formed with undercut and rounded keying ribs 7, 10 respectively. The insulating part of each brick may include some removable partitions. A panel formed from the bricks includes an inner facing of plaster and an unspecified weather facing. Various joints between panels are described and include insulating strips, a compression space, and small bricks cast in a concrete filling.
Patent GB-1293741-A (GB)
Title: Improvements in or relating to thiazole derivatives
Inventor: MANNING ROBERT EVERETT
IPC: C07D277/20
Filed: 1970-01-01
Abstract: 1293741 2 - Alkylimino - 3 - alkyl - 5 phenyl- 4-thiazoline derivatives SANDOZ Ltd 1 Jan 1970 [13 Jan 1969 19 June 1969] 71/70 Heading C2C Novel 2 - alkylimino - 3 - alkyl - 5 - phenyl - 4- thiazoline derivatives of the general formula wherein R and R o  are each a fluorine or chlorine atom or a C 1-3  alkyl or trifluoromethyl group, R 1  and R 2  are each a straight chain C 1-3  alkyl group, R 1  and R 2  are each a straight chain C 1-3  alkyl group or R 1  and R 2  together signify (CH 2 ) n , where n is 2 or 3, A is a hydrogen atom and B is a hydroxyl group or A and B together signify a carbon to carbon bond, and acid addition salts thereof are prepared (a) when A is a hydrogen atom and B is a hydroxyl group, by reaction of an α-halo-phenylacetaldehyde of the general formula with a thiourea of the general formula or (b) when A and B together signify a carbon to carbon bond, by dehydration of the product of (a); followed optionally by salification of the product. α-Halo-phenylacetaldehydes of the second general formula above are prepared by chlorination or bromination of a phenylacetaldehyde of the general formula Phenylacetaldehydes of the fourth general formula above wherein R and R o  are not both a halogen atom are prepared by treatment of a phenylacetonitrile of the general formula with aqueous formic acid in the presence of Raney nickel alloy. Pharmaceutical compositions having hypotensive activity comprise, as active ingredient, a 2 - alkylimino - 3 - alkyl - 5 - phenyl - 4 - thiazoline derivative of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, in association with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.
Patent GB-166913-A (GB)
Title: Improvements in or relating to electric valve or lamp relay and intervalve transformer
IPC: H01F21/04
Filed: 1920-05-03
Abstract: 166,913. Mathieu, G. A. May 3, 1920. Transformers.-Relates to the design of the inter-valve transformers employed in cascade arrangements of thermionic valves, such as shown in Fig. 1. (1) The ratio of transformation is made as high as possible and the coupling as loose as possible subject to the impedance of the transformer primary being equal, when the secondary circuit is in resonance, to the plate-circuit resistance of the preceding valve. Formulµ are given for enabling the constants of the circuits to be adjusted to this condition. The use of high-resistance wire for the transformer windings and of iron cores for high-frequency working) may be avoided, and it is stated that high amplification is obtained together with good stability. (2) When working at high-frequencies it is desirable to reduce as much as possible the capacity between the windings of the transformer. This may be effected by employing a transformer of which one winding' is a solenoid 3, Fig. 3, and the other a series of flat coils 1. It is stated that with this construction a coupling of 25 per cent can be obtained with a capacity of less than 0.0001 microfarad. Or a number of parallel flat coils may be used, of which alternate coils are connected in the primary and secondary circuits. (3) Transformers of the construction shown in Fig. 3 may have one primary and two secondary circuits. One secondary may be connected to the grid circuit of the next valve and the other to a resonance circuit, as shown at the left of Fig. 5, or one circuit may include a retroaction coil, as in the auto-heterodyne detector shown at the right of Fig. 5. This arrangement enables a stepup transformation between the primary 1 and secondary 2 and a step-down between the secondary 3 and the secondary 2, whereby the circuits 1 and 3 may be arranged to induce equal e.m.f.s. in the circuit 2, which is stated to be a condition of maximun sensitivity. (4) For audio-frequency working, iron-core transformers of the type shown in Fig. 7 are used, with a central limb 3 giving large magnetic leakage, so that the coupling may be as loose as desired, while at the same time the primary and secondary circuits have large selfinductance. The grid-filament circuits of the next valve may be connected across only a portion of the secondary winding, as shown in Fig. 7.
Patent HK-8795-A (HK)
Title: Moulded printed circuit board
Inventor: PEERLKAMP ERIK RIJKELE
IPC: H05K1/03
Filed: 1995-01-19
Abstract: The invention relates to a thermoplastic moulded printed circuit board consisting substantially of polyamide 4.6. Preferably use is made of a multilayer structure, of which at least one layer contains reinforcing filler material.
Patent AT-A59890-A (AT)
Inventor: BRINKMANN JUERGEN DR
IPC: H01M50/172
Filed: 1990-03-13
Abstract: In the feed-through disclosed, an annular sleeve (3) made of plastic material is attached to the shaft (1) of the terminal at the same height as the cell cover (6). The sleeve extends through the cover and is joined to it to form a seal between the two. The internal diameter of the sleeve is a defined amount larger than the external diameter of the terminal shaft which, in the vicinity of the sleeve, has at least two rectangular cross-section annular grooves (4) located a certain axial distance apart. Located in each groove is an O-ring (5) made of elastomeric material, the difference between the internal diameter of the sleeve and the radial depth and axial width of the grooves being chosen so that the O-rings are deformed from a circular cross-section to a cross-section with a shorter and a longer axis, thus pressing the O-rings against the grooves and the sleeves in four areas where the ring is flattened.
Patent DK-86091-A (DK)
Inventor: BRUSSELMANS JACQUES HUBERT FRA
IPC: C09J/
Filed: 1991-05-08
Abstract: A method for protecting from the surrounding environment an elongated body with a cover and a sealing device, which sealing device comprises a sealing material with an elongation at breaking point of at least 100% and a permanent deformation at 70 degree C of less than 30%, comprises placing the sealing device around a part of the body after which the body is surrounded by the cover in such a way that the sealing material forms a seal between the cover and the body.
Patent DK-87783-A (DK)
Inventor: OMURA SATOSHI
IPC: C07H17/08
Filed: 1983-02-24
Abstract: 20-Amino derivatives of tylosin and desmycosin are active against bacteria and Mycoplasma.
Patent GB-590574-A (GB)
Title: Improvements relating to electric tuning apparatus
IPC: H03J7/16
Filed: 1945-01-02
Abstract: 590,574. Testing circuit resonance. COSSOR, Ltd., A. C., BEDFORD, L. H., and BELL, D. A. Jan. 2, 1945, No. 109. [Class 40 (v)] [Also in Group XXXV] A resonant circuit is automatically trimmed by feeding the circuit with a frequencymodulated signal of mean carrier frequency equal to that desired for the resonant circuit and feeding the rectified output from the circuit to a phase-sensitive motor which drives the trimming tool. As applied to trimming the -I.F. amplifier of a superheterodyne receiver R, the output from a signal generator FMG is first applied to the last tuned circuit of the I.F. stage. The generator output is of the desired I.F. and is frequency modulated at a low frequency derived, e.g. from a 50-cycle mains supply PS through a transformer TR and adjustable phase-shifter PC. The output from the I.F. stage being trimmed is rectified in the normal receiver detector stage, passed through shaping and filtering circuits SFC to remove harmonics of the mains-frequency, amplified at AMP and then fed to the. armature ARM of a shunt wound commutator motor M, the field FD of which is fed from the 50-cycle main supply PS over secondary S2 of the transformer TR. The motor rotates in a direction dependent on the phase difference between the field and armature currents and drives through a flexible shaft a screw-driver which is applied to the adjusting screw of the trimming condenser forming a part of the circuit being tuned. The motor stops when the circuit is in time, since the F.M. swing of the generator output is then symmetrical about the resonance curve of the circuit being trimmed. This process is then repeated for the preceding I.F. tuned circuits in turn. To prevent hunting of the motor M, negative feedback of a value proportional to the motor speed and derived from an auxiliary. armature winding AW, is applied to the amplifier AMP through a fixed phase-shifter PSN. The arrangement may be adapted for trimming the R.F. and local oscillator circuits. Both the amplitude of the the output from generator FMG and the frequency swing may be controlled by the receiver output. Specification 518,480 is referred to.