baber/WOPTO huggingface dataset:
Patent EC-SP055973-A (EC)
Title: Compuestos de triazol utiles en terapia
Inventor: BRYANS JUSTIN STEPHEN
IPC: A61P15/12
Filed: 2005-08-19
Abstract: Un compuesto de fórmula (I) O un derivado farmacéuticamente aceptable del mismo, en el que U representa -(CH2)d(O)2-, -CO-, o -CH(alquilC1-6)-;W representa -O-, -S(O)a-, o -N(R1)-R1 representa H, alquilo C1-6, (CH2)bCOR2, CO(CH2)bNR2R3, SO2R2, (CH2)cOR2, (CH2)cNR2R3, o (CH2)bhet1;het1 representa un heterociclo saturado o insaturado de 3 a 8 átomos que contiene uno o más heteroátomos seleccionados entre O, N, o S, opcionalmente sustituido con alquilo C1-6;X e Y representan independientemente H, alquilo C1-6, halógeno, OH, CF3, OCF3, OR4; Z representa -(-CH2)f(O)g-, -CO- o -CH(alquil C1-6)-;El anillo A representa un heterociclo de 4-7 miembros, saturado y que contiene N, opcionalmente sustituido con OH, y en el que opcionalmente por lo menos un N del anillo está sustituido con O;El anillo B representa fenilo o un heterociclo de 4-7 miembros, insaturado y que contiene N, opcionalmente sustituido con OH, halógeno, CN, CONH2, CF3, OCF3, y en el que opcionalmente por lo menos un N del anillo está sustituido con O;R2 y R3 representan independientemente H, alquilo C1-6 [opcionalmente sustituido con OH, halógeno, N(alquilo C1-6)2, o alquil C1-6 oxi], alquil C1-6oxi, N (alquilo C1-6)2, o [cicloalquilo C3-8]O R2 y R3, junto con el átomo de nitrógeno al que están unidos representan independientemente un heterociclo de 3 a 8 átomos, opcionalmente sustituido con alquilo C1-6;R4 representa alquilo C1-6 lineal o ramificado,a y c representan independientemente 0, 1 ó 2;b, e y g representan independientemente 0 ó 1;d y f representan independientemente 1 ó 2;son útiles en el tratamiento de la dismenorrea.
Patent EC-SP077241-A (EC)
Title: Formulación en comprimidos de liberación extendida que contiene pramipexol o una sal farmacéuticamente aceptable del mismo, método para su fabricación y su uso
Inventor: FRIEDL THOMAS
IPC: A61K31/428
Filed: 2007-02-13
Abstract: La invención está dirigida a una formulación en comprimidos de liberación extendida que comprende pramipexol, o su sal farmacéuticamente aceptable, en una matriz que comprende al menos un polímero que se hincha en agua distinto del almidón pregelatinizado.
Patent EC-SP088216-A (EC)
Inventor: HEIM GERD H
IPC: A61M1/34
Filed: 2008-02-25
Abstract: A device for separating blood into individual components and/or groups of components, in the form of a sterilizable system includes a filter arrangement forming inlet and outlet chambers using filter elements arranged therein, and respective receptacles for cellular blood components and for blood plasma. The inlet chamber can be connected to the blood source via a line on the inlet side to conduct the blood and is connected, on the outlet side, to the cellular blood components receptacle. The outlet chamber is connected to the blood plasma receptacle via a line on the outlet side. Thermal sterilization is used to sterilize the device by opening a respective line into the inlet-side line of the inlet chamber, into the inlet chamber and the outlet-side line of the outlet chamber, or into the outlet chamber, the line being connected to the exterior via a hydrophobic or hydrophilic filter.
Patent EC-SP951488-A (EC)
Title: Peptidos
Inventor: CARDINAUX FRANCOIS
IPC: C07K14/63
Filed: 1995-07-25
Abstract: Un compuesto de pth o pthrp que tiene potente actividad antagonista en el receptor de pth/pthrp en el cual por lo menos uno de los residuos aminoácidos que se presentan de manera natural en las posiciones 2 y 10 es sustituido por triptófano u otro residuo aminoácido que presenta un grupo aromático o heteroaromatico en su cadena lateral y de manera opcional por lo menos en uno de los residuos aminoácidos que se presenta de manera natural en las posiciones 3 y 6 es sustituido de manera adicional por triptófano y otro residuo aminoácido que presente un grupo aromático o heteroaromatico en su cadena lateral, en forma libre o en forma de sal o de complejo.
Patent EC-SP972158-A (EC)
Title: Analogos de indazol sustituido
Inventor: MARFAT ANTHONY
IPC: C07D413/02
Filed: 1997-06-23
Abstract: La invención se refiere a compuestos de fórmula I: (gráfico) y sales farmacéuticamente aceptables de los mismos, en los que R, R1 y R2 son tal como se define en la presente. La invención está además relacionada con composiciones farmacéuticas que los O contienen, y a procedimientos de uso de los compuestos de fórmula I, o sales aceptables de los mismos, para la inhibición de la fosfodiesterasa (PDE) tipo IV o de la producción de factor de necrosis tumoral (TNF) en un mamífero.
Patent EC-SP992880-A (EC)
Title: Antagonistas de receptores de vitronectina
Inventor: MILLER WILLIAM HENRY
IPC: C07C205/00
Filed: 1999-03-09
Abstract: Se describen compuestos de fórmula (I) que son antagonistas del receptor de vitronectina y son útiles en el tratamiento de osteoporosis: (gráfico), en la que: R*es (gráfico) X es CR¿R¿,NR¿o S; Y es CR¿R¿, NR¿o S; A es H, halo, OR9, -SR9, -CN, -NR9RK, -NO2, -CF3, -S(O)r CF3, -CO2R9, -COR9, -CONR9 2, -alquilo C1-C6, -alquil Co-C6-Ar, alquil Co-C6-Het, -alquil Co-C6-cicloalquilo C3-C6 -S(O)kR9, o CH2N(Rf)2; R1 es -alquil Co-C6-Het, -alquil Co-C6-Ar, alquilo C1-C6 -H, -CN, -CH=CH2, -C=CH o -S(O)kR9; R2 es (gráficos), W es -(CHR9)a -U-(CHR9)b-; U está ausente o es CO, CR92, C(=CR9 2), S(O)k, O, NR9, CR9OR9, CR9(ORk)CR92, CR92CR9(ORk), C(O)CR92, CR92C(O), CONRi, NRiCO, OC(O), C(O)O, C(S) O, OC(S), C(S)NR9, NR9C(S), S(O)2NR9, NR9S(O)2, N=N, NR9NR9, NR9CR92, CR92NR9, CR92O, OCR92, C=C, CR9=CR9, Ar O Het; G es NRe, S u O; R9 es H, alquilo C1-C6, Het-alquilo C0-C6, cicloalquil C3-C7-alquilo C0-C6 o Ar-alquilo C0-C6; Rk es R9, -C(O)R9, o -C(O)ORf; Ri es H, alquilo C1-C6, Het-alquilo C0-C6, cicloalquil C3-C7-alquilo C0-C6, Ar-alquil C0-C6 o alquilo C1-C6 sustituido con uno a tres grupos seleccionados entre halógeno, CN, NR92, OR9, SR9, CO2R9 y CON(R9)2; Rf es H, alquilo C1-C6 o Ar-alquilo C0-C6; Re es H, alquilo C1-C6, Ar-alquilo Co-C6, Het-alquilo C0-C6, cicloalquil C3-C7-alquilo C0-C6 o (CH2)kCO2R9; Rb y Rc se seleccionan independientemente entre H, alquilo C1-C6, Ar-alquil C0-C6, Het-alquilo C0-C6, cicloalquil C3-C6-alquilo C0-C6, halógeno CF3, ORf, S(O)K)Rf, CORf, NO2, N(Rf)2, CO(NRf)2, CH2N(Rf)2, o Rb Y rC están unidos entre si para formar un anillo carbocíclico o heterociclico, aromátco o no aromático, de cinco o seis miembros, opcionalmente sustituido hasta con tres sustituyentes elegidos entre halógeno, CF3, alquilo C1-C4, ORf, S(O)kRf, CORf, OH, NO2, N(Rf)2, CON(Rf)2 y CH2N(Rf)2; o metilendioxi; Q1, Q2, Q3, y Q4 son independientemente N o C-Ry, siempre que no más de uno de Q1, Q2, Q3 y Q4 sea N; R¿es H, alquilo C1-C6, Ar-alquilo C0-C6 o cicloalquil C3-C6-alquilo C0-C6; R¿¿es R¿, -C(O)R¿o -C(O)OR¿; Ry es H, halo, -OR9, -SR9, -CN, -NR9Rk, -NO2, -CF3, CF3S(O)r-, -CO2R9, -COR9 o -CONR92, o alquilo C1-C6 opcionalmente sustituido con halo, -OR9, -SR9, -CN, -NR9R¿¿, -NO2, -CF3, R¿S(O)r-, -CO2R9, -COR9 o -CONR92; a es 0, 1 ó 2; b es 0, 1 ó 2; K es 0, 1 ó 2; r es 0, 1 ó 2; s es 0, 1 ó 2; u es 0 ó 1; y v es 0 ó 1; o una sal farmacéuticamente aceptable del mismo .
Patent FI-20031821-A (FI)
Inventor: SALMINEN ALEKSI
IPC: C23C18/16
Filed: 2003-12-12
Abstract: The invention relates to a method for coating the inner surface of a tube made of copper or copper alloy by a tin layer, according to which method the tin layer is formed by chemical tin coating. The coating of the inner tube surface is carried out in one coating step so that the tin layer is formed as the coating solution circulates on the inner tube surface
Patent FI-20040085-A (FI)
Inventor: VATAJA TIMO
IPC: H04Q7/32
Filed: 2004-01-21
Abstract: The invention relates to a method, electronic device and computer program for providing digital rights management. The electronic device comprises a first clock and an optional second clock. The electronic device may store at least one protected media object and rights associated with the media object. A time attack event is detected in the electronic device. A barring time is increased when a time attack event occurs. The barring time is decreased regularly. It is checked whether the barring time exceeds a predefined value at a request to present at least one media object. The at least one media object is presented if that is allowed by rights associated with the at least one media object and the barring time does not exceed the predefined value. The benefits of the invention are related to improved enforcement of digital rights.
Patent GB-1051550-A (GB)
IPC: H01L29/00
Abstract: 1,051,550. Microphones. SONY CORPORATION. Sept. 17, 1964 [Sept. 19, 1963], No. 38010/64. Heading H4J. [Also in Division H1] A microphone comprises a diaphragm 12 to which is fixed to a stylus 13 which transmits the vibrations to a semi-conductor transducer 14 (see Division H1). Stylus 13 is supported by a member 21 which imparts to it an initial pressure which can be adjusted by means of a screw 17.
Patent GB-1054118-A (GB)
IPC: G21C3/06
Abstract: 1,054,118. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Oct. 24, 1963 [Nov. 19, 1962], No. 43626/62. Heading G6C. A nuclear reactor fuel element comprises a member of nuclear fuel material enclosed in a sheath of a Zr- or Mg-based alloy having as a further alloying addition a substance which by virtue of its ability to form an intermetallic compound with Pu serves as a barrier against diffusion through the sheath of Pu arising from the nuclear fuel due to irradiation of the fuel element in a nuclear reactor. The further alloying addition may be A1 in amount up to 0À5 weight per cent, except where the sheath material is a Mg-based Zr binary alloy in which case the maximum possible A1 addition is 100 parts by weight per cent 10<6> of alloy. Other suitable alloying additions for binary Mg-based alloys containing Zr are Pb and Bi. Suitable alloys may contain up to 1À0 weight per cent of Zr and up to 1À0 weight per cent of Pb or Bi, the remainder being Mg. Hydrided Mg/Zr/Pb and Mg/Zr/Bi alloys are particularly suitable since as the Zr is present as the hydride, the Pb or Bi is more free to combine intermetallically with the Pu. Another alloy which is effective is a Mg-based alloy containing Mn and Al in amounts of up to 1À0 weight per cent each.
Patent GB-1134898-A (GB)
Abstract: 1,134,898. Sorting coins. STANDARDWERK EUGEN REIS G.m.b.H. 1 April, 1966 [3 April, 1965], No. 14553/66. Heading G4X. A coin sorting and counting machine comprises an inclined plate 1 up which coins are fed singly from a cup by pairs of pins such as 16, 19, 20, working in slots in the plate and carried by the links of an endless chain (not shown). The coins are delivered through opening 15 into recesses 22 . . . 25 of a revolving drum 21, and are picked off by a tongue 28 to pass in vertical position down a chute 27. The coins fall into individual compartments 30 circulated beneath shoot 27 by supporting and guiding chains the compartments having open tops and bottoms, each coin then passing along and resting on a track 31 having a central longitudinal opening of graded width so that coins smaller in diameter than the smallest acceptable coin fall at the beginning of the opening to a reject store, the smallest acceptable coins fall into shoot 39 leading to a coin box, coins of diameter between the smallest and the second smallest acceptable coin fall to the reject store, coins of the second smallest acceptable type fall into shoot 38 leading to coin box 43, and so on. Each coin shoot such as 39 contains the operating member of a counter, and a rail to guide each coin to actuate the member.
Patent GB-1225582-A (GB)
IPC: B22F9/22
Filed: 1969-03-13
Abstract: 1,225,582. Powder for sintering to form steel. HÍGAN€S A.B. March 13, 1969 [March 29, 1968], No.13378/69. Headings C7A, C7D. An inhomogeneous powder, for use in making sintered steel having low dimensional changes during sintering and hardening, comprises:- Ni 0À2-0À8% Mn 0À5-2% and Mo 0-0À6% the balance being iron with a maximum oxygen content of 0À3%; and has a compressibility of at least 6À30 g/cm<SP>3</SP> at a compacting pressure of 4À2 2 Mp/ cm<SP>2</SP> . The powder may be prepared by (1) mixing Fe, Ni and Mo powders together (the Ni and Mo powders being smaller than the Fe powder) and heating the mixture at 730-1030‹C. in a reducing atmosphere for at least 15 minutes; (2) mixing the powders as above with an organic binder solution and distilling off the solvent or (3) heating at 730- 1030‹ C. a mixture of Fe powder with Ni and Mo oxides or aqueous solution of Ni and Mo compounds. The prealloyed powder is then mixed with Mn (e.g. in the form of Fe Mn or electrolytic Mn), graphite to provide the C in the steel and a die lubricant (e.g. zinc stearate), the mixture being pressed and sintered. The sintered compact may be austeritized at 850‹ C. and quenched in oil to 50‹ C.
Patent GB-1227394-A (GB)
IPC: G03G17/08
Filed: 1968-04-25
Abstract: 1,227,394. Duplicating masters produced from manifold sets. XEROX Corp. April 25, 1968 [April 26, 1967], No.19669/68. Heading G2H. Duplicating masters are prepared utilizing the imaging method for electrically photo-sensitive cohesively weak layers described in Specification 1,150, 381 by including in the imaging layer an organic solvent soluble or water-soluble colorant or colour former. Specified colourants are rhodamine, crystal violet, malachite green, nigrosine and induline or the pigment N<SP>1</SP>, N<SP>11</SP> - dimethyl -4- methyl -3- phenyl azo -3<SP>1</SP>- carboxy- - 2<SP>1</SP>-naphthol sulphonamide. Specified colour formers which react in the presence of the duplicating solvent with a component in the copy sheet to form a colourant are gallic acid, tannic acid, rubeanic acid, hematoxylin, sodium thiocyanate, salts of Fe, V, Cu or Ni, diazo compounds e.g. paradiazo NN-di substituted aniline zincichlorides and diazo couplers e.g. anilines, phenols, pyrazolones, thio barbituric acid and cyano acetamide. In the case of the diazo compounds and couplers the dye may be formed in situ in the imaging layer by controlling the PH with the duplicating solvent. The quality of the dyes in the above systems may be improved by treatment thereof with nitrogenous bases e.g. urea, ethylene diamine, ammonia, triethanolamine, fatty amines, resin amines, guanidines and amidines. In an alternative embodiment transfer of the master formed is achieved by pressure contact which may be accompanied by heat.
Patent GB-1228112-A (GB)
IPC: F27D1/08
Filed: 1969-07-16
Abstract: 1,228,112. Refractory bricks. GENERAL REFRACTORIES CO. 16 July, 1969 [1 Aug., 1968], No. 35941/69. Heading F4B. A refractory roof brick 1 is provided, on at least two faces, with an oxidizable steel casing 4, on which before the casing is applied to the brick, are embossed circular dimples 12, so that once applied to the brick, on at least one face part of the casing surface 15 is spaced from the brick surface to allow for oxide layer growth on the brick and thermal expansion of the brick in use. The flattened crests of the dimples 12 engage the surface of the brick, whilst the resultant lattice-like formations on the unrecessed surface 15 surrounding the dimples 12 contact the surface 15a of the casing 4a of an adjacent roof brick la. Alternatively it may be the dimples which extend outwardly and the unrecessed surface portions which engage the surface of the brick. At the hot end 3b of the brick the dimples 12<SP>1</SP> may be provided with inclined side wall portions. Suitable casing thicknesses, and dimensions and spacings of the dimples, are disclosed. Where only one of the casing faces is embossed, so that it abuts a plane casing face on an adjacent brick, the depth of the dimples is increased to compensate for oxide layer growth and thermal expansion of the adjacent brick having the plane casing face. The casing 4 is secured to the brick side walls by keying projections 6, the overlapping edges 10 of the casing which are located in a recess 8 in the brick, being spot welded as at 9. In a modification (Figs. 7 to 11, not shown) the dimpled portions of the casing are of diamond shape, the casing being wrapped round the brick with its mating edges being butt welded. In a further modification (Fig. 12, not shown) longitudinally or transversely extending sinusoidal ridges are embossed on the casing to define the desired recessed and unrecessed surface portions. The brick is formed from 50% or more of magnesium oxide together with the oxides of chromium, silicon, iron and aluminium.
Patent GB-1230269-A (GB)
IPC: A47J31/30
Filed: 1969-12-11
Abstract: 1,230,269. Percolator. L. MANCIOLI. 11 Dec., 1969 [30 Dec., 1968], No. 60425/69. Heading A4D. A percolating device comprises a lower vessel 1 containing a cup 5 with a downwardly projecting tube 7, through which boiling water is discharged, and filters 8 and 9 which support coffee or other infusible substances. A further tube 10 ejects the infused liquid from slots 10B into a removable upper vessel 12, formed with an annular tube 14 in which tube 10 is housed. A sealing apron 16 with a frustoconical annulus fits on to a complementary frusto-conical section of tube 10 above tube 14 and prevents spillage of infused liquid betwen tubes 14 and 10.
Patent GB-1230493-A (GB)
IPC: C08L39/00
Filed: 1969-02-19
Abstract: 1,230,493. Formaldehyde polymer compositions. SOC. ITALIANA RESINE S.p.A. 19 Feb., 1969 [7 March, 1968], No. 9044/69. Heading C3P. Polymeric compositions consisting of (i) a formaldehyde homopolymer or copolymer and as stabilizers (ii) at least one acidic, substituted or unsubstituted thiokisphenol of the Formula (A) wherein R 1 , R 2 , R 3 , R 4 , R 5  and R 6  are hydrogen, or methyl, ethyl, isopropyl or tert-butyl radicals and (iii) at least one basic polymer of the Formula (B) wherein x is an integer exceeding 50 and n is an integer of 3 to 6 and the weight ratio of (A) to (B) being 0À1: 1 to 3À5: 1 may be prepared by dissolving (A) and (B) each in solvents, adding the resulting solutions to a portion of the formaldehyde polymer, evaporating the solvent, and mixing the resultant mixture with the remainder of the polymer. In the examples the compositions comprise a polymer prepared from formaldehyde and esterified with acetic anhydride, 4,4<SP>1</SP>- thio - kis (6 - tert butyl - 3 - methylphenol), polyvinyl pyrrolidone, 4,4<SP>1 </SP>- butylidene - bis(3- methyl - 6 - tert butylphenol), and a polyamide terpolymer of polycaprolactam, polyhexamethylenadipamide and polyhexamethylensebacamide.
Patent GB-1230881-A (GB)
IPC: F42C14/08
Filed: 1969-01-01
Abstract: 1,230,881. Fuzes for land mines. DYNAMIT NOBEL A.G. 1 Jan., 1969 [2 Jan., 1968], No. 76/69. Heading F3A. A fuze for land mines comprises a housing 1 having a plate 4 adapted to be attached to a firing element 3 capable, in use, of tilting the plate when deflected from its normal position, a firing pin 10 loaded by a spring 9 and held in an inoperative position by a claw 8 axially displaceable in a recess 15 and attached to the plate 4 by a flexible connecting member 14, and a primer cap 13. The claw slides upon a guide tube 7 fixed in the housing. The plate 4 is fixed on the housing by a nut 5 engaging the edge of the plate. A safety nut 2 prevents inadvertent tilting of the plate 4 and is removable so as to render the fuze operable. The element 3 can be in the form of a telescopic rod. When the element 3 is deflected, the plate 4 is tilted as a result of the simultaneous breaking off of its rim. As a consequence, the plate is lifted from the housing 1 and the connecting member 14 pulls the claw 8 in the direction of the disc. The firing pin is carried along by the claw and the spring 9 is increasingly compressed. As soon as the claw has slid out of a narrowed portion 16 of the recess, the wedge-shaped surfaces 20 of the claw slip off the firing pin. The spring then projects the firing pin against the priming cap with consequent rupture of a diaphragm 19.
Patent GB-1233449-A (GB)
IPC: F16C23/00
Filed: 1968-11-05
Abstract: 1,233,449. Pedestal bearing. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. 5 Nov., 1968 [6 Nov., 1967], No. 52427/68. Heading F2A. A bearing support comprises a stationary bearing housing consisting of a lower, 4, and upper, 6, portion which contain an undivided bushing 3 which encases a bearing 2 for the trunnion 1 of a heavy machine unit. The bushing is connected to the lower housing portion by blocks 5 located in openings 7, 8, 9 provided in the bushing and the lower housing, a clearance 14 being provided between the bushing and the upper portion of the bearing housing. The blocks 5 may be fixed in position by screws 10, or by a snug fit in their openings (Fig. 2, not shown). As described the bearing 2 is a self-aligning roller bearing 2.
Patent GB-1233794-A (GB)
IPC: C07C45/67
Filed: 1968-10-03
Abstract: 1,233,794. 2-Methylhept-2-en-6-one. BADISCHE ANILIN- & SODA-FABRIK A.G. 3 Oct., 1968 [4 Oct., 1967], No. 46907/68. Heading C2C. 2 - Methylhept - 2 - en - 6 - one is prepared by isomerization of 2-methylhept-l-en-6-one by means of an isomerization catalyst wherein the isomerization catalyst is a carbonyl compound of an element of Groups VI B , VII B  or VIII of the Periodic Table in the zero oxidation state or wherein one or more of the carbonyl groups are replaced by other electrically neutral ligands such as ligands having tertiary basic nitrogen atoms or phosphorus atoms. The amount of carbonyl compound is from 0À1- 20% b.w. with reference to the amount of 2- methylhept-1-en-6-one. The reaction may be carried out at a temperature of 100-250 C. and from 1-50 atmospheres pressure in the presence of a solvent. Specified isomerization catalysts include iron pentacarbonyl, bis-triphenyl phosphine iron tricarbonyl and tripyridinodiiron tetracarbonyl.
Patent GB-1239440-A (GB)
IPC: B23Q15/013
Filed: 1968-12-31
Abstract: 1,239,440. Electric correspondence control. PNEUMO DYNAMICS CORP. Dec.31, 1968 [April 15, 1968], No.61919/68. Heading G1N. An automatic machine tool control system includes a servo-mechanism which sets a slide 14 carrying a tool 15, Fig.2, to a machining position as commanded by a set position means 10 whereupon an integrator 51 is actuated to generate a ramp function signal, the slope of which is proportional to the speed of the spindle 46, which signal controls the slide feed rate. This rate will be maintained due to the generation of an error signal, at 24, indicative of the instantaneous difference between the sum of the set position and ramp signal voltages and the magnitude of the voltage fed back by the slide position transducer 20. A limit switch 55 is actuated when the slide reaches its fully traversed position 17 to energize a dwell timer 58 which, upon completion of its delay, supplies a pulse to a retract multi-vibrator 60 which provides a saturating voltage to the adder 22 so that the slide is caused to move to its fully retracted position. Simultaneously the retract circuit provides a signal to reset the feed start multi-vibrator 42, which is subsequently actuated by a signal from a circuit 40 sensing a null output of the power amplifier 34 indicating that the slide is at its desired machining position. It is stated that the system may be arranged for a reverse feed action, or a plurality of slides may be similarly controlled. Figs. 3 to 5 (not shown) are circuit diagrams for the system. (For Figures see next page)