baber/WOPTO huggingface dataset:
Patent GB-798666-A (GB)
Title: A process for the production of hydrohalides of barbituric acid derivatives
Filed: 1956-11-06
Abstract: The invention comprises a process for the production of barbituric acid derivatives of the general formula: <FORM:0798666/IV (b)/1> wherein R1 is an alkyl radical, R2 an alkyl or aryl radical, R3 alkyl radicals which can if desired form a heterocyclic ring in conjunction with the adjacent nitrogen atom, X is an oxygen or sulphur atom and Hal is a halogen atom, by (1) reacting a barbituric acid of the general formula: <FORM:0798666/IV (b)/2> with an aminoethyl halide of the general formula: <FORM:0798666/IV (b)/3> in the presence of an organic solvent comprising a ketone, an ester, or an alcohol; or (2) reacting a metal salt of a barbituric acid of the general formula (II), in an organic solvent, as above, with a hydrohalide of an aminoethyl halide of the general formula (III).  In examples, 5 : 5-diethyl - or 5 : 5 - phenyl - ethyl - barbituric acids are dissolved in hot acetone and mixed with piperidino ethyl chloride when the 5 : 5-disubstituted - 3 - piperidinoethyl - barbituric acid derivative is formed and crystallizes from the solution; the sodium salt of 5 : 5-phenyl-ethyl-barbituric acid is suspended in acetone and diethylaminoethyl chloride hydrochloride added; the solution is filtered from the sodium chloride formed and the filtrate heated, when 5 : 5 - phenyl - ethyl - 3 - diethylaminoethyl-barbituric acid hydrochloride is formed and crystallizes from solution.
Patent GB-1059593-A (GB)
Title: Transmission line network
IPC: G11C11/06
Filed: 1963-08-27
Abstract: 1,059,593. Magnetic storage apparatus. SPERRY RAND CORPORATION. Aug. 27, 1963 [Aug. 28, 1962], No. 33864/63. Heading H3B. Data stored in bistable magnetic elements is read out by means of a sense line arrangement comprising a plurality of groups of transmission line stubs connected in parallel with a load having an impedance equal to (m/1+n)Z0 where   Zo is the characteristic impedance of the stubs, m is the number of stubs in each group and n + 1 is the total number of groups. Fig. 1 shows a sense line comprising two groups 11, 13, 15, 17 and 19, 21, 23, 25 connected in parallel with load 27 having an impedance of 2Zo. If 29 is a thin film which includes a signal Vo in stub 11 and the stub is terminated in an impedance having a value greater than its characteristic impedance then a signal due to the incident and reflected signal greater than Vo is present at the end 31 of the stub after a time determined by the length of the stub. The equivalent circuit after this time is as shown in Fig. 2 (not shown), and it is shown that the signal across the load is Vo/2. The incident voltages on stubs 13, 15, 17 and 19, 21, 23, 25 as well as the reflected voltage on stub 11 each travel down their respective lines and are completely reflected with a change in polarity cancelling each other out at the open ends of the stubs. The magnetic element may be positioned at any location on the transmission lines, Figs. 3, 4 (not shown). Fig. 5 (not shown) shows a second embodiment wherein there are four groups of transmission line stubs, two stubs in each group. The magnetic elements may be cores instead of films.
Patent GB-837677-A (GB)
Title: Improvements in steam power installations
IPC: F22G5/00
Filed: 1956-11-06
Abstract: 837,677. Forced-flow steam boilers. 'SCHRODER, F. G. Nov. 6, 1956 [Nov. 11, 1955], No. 33869/56. Class 123(2) In a steam power installation, two forced-flow, once-through boilers A, B operate in parallel to supply a steam turbine having high and low pressure stages 12, 23 with steam at substantially uniform temperature regardless of differences in heat output between the two boilers. Water is supplied to a pre-heater 4 in the boiler A through a pipe 2 and a valve 3 by a pump 1 and then flows to an evaporator 6 in the boiler B. The steam thus generated passes back to a superheater 8 in the boiler A before flowing by way of a pipe 9 and a valve 10 to a collecting pipe 11 feeding the high pressure stage 12 of the turbine, the pipe 11 also being supplied with steam generated inversely in elements 4<SP>1</SP>, 6<SP>1</SP> and 8<SP>1</SP>, and supplied by the boiler B. The exhaust steam from the stage 12 of the turbine passes in parallel through the boilers and is reheated in cross-connected elements 15, 17, 19 and 15<SP>1</SP>, 17<SP>1</SP>, 19<SP>1</SP>, before passing to the low pressure stage 23. The expanded steam from the stage 23 flows through a condenser 24 whence the condensate is returned by a pump 25 to the feed pump 1. In a modification, Fig. 2, the cross-connections between the boilers are controlled by valves so that the boilers may be operated individually if required. In a second modification, Fig. 3, a simplified form of cross-connection is shown.
Patent GB-385102-A (GB)
Title: Improvements in electric regulating apparatus
IPC: H02P9/24
Filed: 1931-12-08
Abstract: 385,102. - Automatic regulation. ETABLISSEMENTS LABINAL, 28, Rue Arago, St-Ouen, Seine, France. Dec. 8, 1931, No. 34004. Convention date, Dec. 17, 1930. [Class 38 (iv).] In a voltage regulator wherein the movable contact 16 is carried by an elastic diaphragm 9, an adjustable spring 19 is provided to reduce the contact pressure by an initial deformation of the diaphragm. In the form shown, the diaphragm has its rim connected to the centre portion by three curved arms, and carries the armature 17 which co-operates with the flange 4a of the steel tube 4 and with the polepiece 8 secured to the end-plate 3. A washer 9a is inserted between the diaphragm rim and the polepiece 8. The contacts may have tungsten tips, the fixed one 13 being adjustable by a screw 12 whilst the spring 19 for reducing the contact pressure is adjustable by a nut 22. The members 4, 8, 17 may be paper-covered or copper-plated to reduce the air-gap without danger of sticking, whilst the. diaphragm may be of steel or other metal.
Patent GB-1479023-A (GB)
Title: Aircraft engine intakes
IPC: F02C7/042
Filed: 1975-07-28
Abstract: 1479023 Jet propulsion engine air intakes DEFENCE SECRETARY OF STATE FOR 28 July 1975 [1 Aug 1974] 34043/74 Addition to 1166733 Headings F1G and F1J [Also in Division F2]  An aircraft engine intake duct having a wall 15 movable to an extended position, shown, during supersonic operation so as to deflect the boundary layer D from an upstream surface 13 and into a bleed aperture 17, as described in Specification 1166733, is additionally provided with a flow diverter 20 having a mouth partly defined by lip 22 and arranged to divert the boundary layer from the main flow when the wall 15 is retracted for subsonic operation. The diverted flow is directed to the free stream flow at the sides of the intake. The movable wall 15 may have an upstream extending lip (30) Fig. 5, (not shown) a suction chamber and draw-off slot (34, 31 respectively), Fig. 6 (not shown) or through-slots (32, 33) Fig. 7 (not shown) to reduce drag when the wall is in its extended position. Boundary layer velocity may be increased by fluid jets. The upstream portion of ramp 11 may be pivotal. In a further modification Fig. 8, (not shown) diverter 20 and bleed 17 have a common entrance aperture.
Patent GB-208375-A (GB)
Title: Improvements in attache cases, suit cases and the like
IPC: A45C5/03
Filed: 1922-12-14
Abstract: 208,375. Cooper, J. W. Dec. 14, 1922. Corner joints; lids. - An attachÚ, suit, or like case is formed of plywood boards or sheets connected together by metal angle-pieces. The loose front A slides into place and carries at its upper end a metal mounting R on which are disposed a hinged catch or catches T adapted to be engaged by a lock or locks S mounted on the side C to which the handle is attached.
Patent GB-355132-A (GB)
Title: Improvements in or relating to means for converting reciprocatory movement into rotary motion and vice versa
IPC: F16H25/12
Filed: 1930-11-12
Abstract: 355,132. Grinding. CAPDET, H., 127, AllÚe St-Agne, Toulouse, Haute Garonne, France. Nov. 12, 1930, No. 34128. Convention date, Nov. 12, 1929. Addition to 328,284, [Class 83 (iii), Metals, Cutting]. [Class 60.] Disc apparatus.-In cutting a sinusoidal camtrack in the guide cylinder of mechanism for converting rotary motion into reciprocating motion and vice versa, as described in the parent Specification, the opposite faces of the track are formed on separate cylinders. Each cylinder a is secured to a sleeve k which is slidably keyed on a driving shaft j. A gear h secured to the shaft j rotates two axially opposed pinions g, each of which carries an eccentric cam e rotatable between flat plates c, d, the former being secured to the sleeve k and the latter to the work a. A collar m on the shaft j supports the interior of the work during its rotation and reciprocation and an extension n on the shaft supports a sleeve o on the stationary cutter-head q. The latter comprises a casing carrying two axially opposed cutters p driven through bevel gears from a central shaft and having the same shape as the rollers with which the cam-track b is intended to engage. After cutting, the track may be trued by substituting grinding tools for the cutters p. The gear ratio of the gears h, g is equal to the number of reciprocations made by the work during one revolution.
Patent GB-394317-A (GB)
Title: Improvements in the colouration of textile materials
Filed: 1931-12-09
Abstract: In a process for producing azo dyes on textile materials (cellulose esters and ethers and animal fibres), wherein the diazo and/or coupling component are fixed in the free state on the material prior to colour formation, the fixation is effected by applying aqueous dispersions or suspensions of the component or components by mechanical impregnation and subjecting the material to a moist heat treatment, e.g. steaming.  The fixation and subsequent development may be effected continuously.  Components specified are arylamides of aromatic hydroxy carboxylic acids and b -ketocarboxylic acids, phenols, naphthols, oxynaphtho-carbazoles, pyrazolones, N-alkyl anilines, naphthylamines and the components referred to in Specifications 300,929 and 310779, [both in Class 15 (ii), Dyeing, Processes &c. for]; aminodiphenylamines and amino-arylaminoanthraquinones.  The dispersions may be prepared by the usual methods or according to Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819, 273,820, 322,737, and 323,788, [all in Class 15 (ii), Dyeing, Processes &c. for].  Various methods of applying the process are given and mixed materials containing cellulose esters and ethers may also be treated and any cellulose or regenerated cellulose present may be coloured by suitable processes, e.g. vat dyestuffs may be applied according to Specification 262,506, [Class 15 (ii), Dyeing, Processes &c. for].  In examples (1) cellulose acetate is padded with a dispersion of p-aminobenzene-azo-a -naphthylamine, dried, steamed, diazotized and developed with a dispersion of b -oxynaphthoic acid, (2) a woven fabric having a cellulose acetate warp and a viscose weft is padded with a dispersion of aminoazobenzene, steamed, rinsed to clear the viscose, diazotized and coupled with resorcinol; the viscose may then be coloured with a cotton dyestuff, (3) a cellulose acetate fabric is padded with a dispersion containing the anilide of 2 : 3-oxynaphthoic and 5-nitro-2-toluidine, dried, steamed and developed in a nitrite-acetic acid bath, (4) pastes containing 2 : 5-dichloraniline and diacetoacetyl-o-tolidine, the 2 : 5-dimethoxyanilide of 2 : 3-oxynaphthoic acid and the anilide of 2-oxycarbazole-3-carboxylic acid are applied as in (3), (5) a cellulose acetate fabric is printed with a paste containing 2 - methoxybenzene - azo - a  - naphthylamine, padded by means of engraved rollers with a thickened dispersion of 2 : 3-oxynaphthoic-anilide, steamed, diazotized and soaped, (6) a cellulose acetate woven fabric is dyed with benzene-azo-benzene-azo-phenol, printed with a dispersion containing 4-amino-4<1>- methoxydiphenylamine and 2 : 3-oxynaphthoic acid-o-toluidide, dried, steamed, washed and developed by diazotization, (7) a natural silk fabric is padded with a dispersion containing the anilide of 2 : 3-oxynaphthoic acid and 5-nitro-2-anisidine, dried, steamed and developed.
Patent GB-636988-A (GB)
Title: Improvements in and relating to the production of colour photographic images
Inventor: JENNEN JACOB J
IPC: F27D3/12
Filed: 1947-12-24
Abstract: 1 - Phenyl - 3 - [4 - chloroquinolyl - (2) - amino]-5-pyrazolone is prepared by refluxing together 1-phenyl-3-amino-5-pyrazolone and 2 : 4-dichloroquinoline in glacial acetic acid.  1 - Phenyl - 3 - [benzoxazolyl - (2) - amino] - 5 - pyrazolone is prepared by heating together 1-phenyl-3-amino-5-pyrazolone and 2-chlorobenzoxazole. 1-Phenyl-3-[5-phenylbenzoxazolyl-(2)-amino]-5-pyrazolone and 1-phenyl-3-[benzselenazolyl - (2) - amino] - 5 - pyrazolone are similarly prepared.  1 - Phenyl - 3 - [benzthiazolyl - (2) - amino] - 5 - pyrazolone is prepared by refluxing together 1-phenyl-3-amino-5-pyrazolone, phenyl isothiocyanate, and pyridine, acidifying, adding a chloroform solution of bromine to a chloroform solution of the precipitate, heating, dissolving in aqueous NaOH and heating, and precipitating with acetic acid. 1-Benzthiazolyl-(2)-3-[benzthiazolyl-(2)-amino]-5-pyrazolone and ethyl-3-[benzthiazolyl - (2) - amino] - 5 - pyrazolone - 1 - acetate are similarly prepared.  Bis - [1 - m - chlorophenyl - 5 - pyrazolonyl - (3)]-amine is prepared by reacting ethyl malonate mono-imido ether with m-chlorophenylhydrazine, and removing the 1-m-chlorophenyl-3-amino-5-pyrazolone also formed. 2-Mercapto-5-phenylbenzoxazole is prepared by boiling 4-hydroxy-3-aminodiphenyl with KOH and CS2 in ethyl alcohol. 2-Chloro-5-phenylbenzoxazole is prepared by heating 2-mercapto-5-phenylbenzoxazole with PCl5 and POCl3.  The ammonium salt of 1-p-sulphophenyl-3-[21-chloroquinazolyl-(41) -amino]-5-pyrazolone is prepared by heating together the ammonium salt of 1-p-sulphophenyl-3-amino-5-pyrazolone and 2 : 4-dichloroquinazoline in aqueous ethyl alcohol.
Patent GB-1375765-A (GB)
IPC: B24B31/073
Filed: 1972-07-21
Abstract: 1375765 Vibratory mills; coating apparatus OXY METAL FINISHING INTERNATIONAL SA 21 July 1972 34322/72 Headings B2A and B2L [Also in Divisions B3 and F4] A vibrating machine for treating shaped parts, such as finishing polishing, drying or painting such parts, or for grinding granulated materials or pulverulent products, comprises a pan 1, to Fig. 1, to contain a mixture consisting of parts 8 to be treated and a treating agent 9, the mixture, during use of the machine, moving in a closed circuit in a first zone Z1, and then towards a second zone Z2 for sorting and separating the mixture, the passage of the mixture from the first to the second zones being effected over a path along which is interposed closure means 10 comprising at least one deformable envelope inflatable by a fluid and arranged so that according to whether it is inflated or deflated, it keeps the mixture in the first zone or permits free passage to the second zone. The pan 1 is supported by spring 6 and connected to a vibrator 2 driven by a motor 4. The treatment zone Zl has a high point located in the same horizontal plane as the separating zone Z2 and is spaced therefrom by a gap. During treatment, the parts move from the low to the high points of the zone Zl and fall over a side 7 through the gap and back into the low part. After treatment, the gap is closed by inflation of a trunk or tube 10 which when inflated moves to a position 10a and by opening of valves (13, Fig. 2, not shown) which unfolds goldbeaters skins (11, 12), the parts and treating agent move into the zone Z2. The treating agent falls through a screen 17 into the zone Zl while the parts are discharged from the machine. In another embodiment, the treatment zone Z1 consists of a pan 18, Fig. 3, with a flat bottom and the separating zone Z2 consists of a receptacle at the side of the pan. During treatment, openings 26, 27 between the pan and receptacle are closed by inflatable closure means 24, 25. After treatment, the closure means are deflated so that the parts and treating agent pass from zone Z1 through opening 26 into zone Z2. A device 30 produces a centripetal force 31 acting on the parts and treating agent, the latter passing through a screen 28 back into zone Z1 while the parts are discharged in the direction 32. In a further embodiment having a separating zone Z2, Fig. 5, at a higher level than the treating zone Zl, an envelope is inflated after treatment to provide an inclined surface 36 up which the parts and treating agent move into the zone Z2. The envelopes may have perforations in the surface over which the mixture moves so that fluid is expelled in the direction of the mixture.
Patent GB-824921-A (GB)
Title: Improvements relating to velocity modulated electron beam devices operating with a pulsed power supply
Inventor: SCOLES GRAHAM JOHN
IPC: H01J23/027
Filed: 1954-11-26
Abstract: 824,921. Velocity-modulated tubes. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Nov. 28, 1955 [Nov. 26, 1954], No. 34375/54. Class 39(1). An arrangement including a velocity modulated electron beam discharge device has a pulsed power supply, means for directing electrons on to a plurality of electron collectors to which graded potentials are applied so that when the electrons reach each collector they will be at a sufficiently low velocity to ensure that heat generation is small, and means for feeding back energy from the collectors to the power supply to the electron beam device. The arrangement shown includes a klystron in which a beam of electrons from a cathode K, after passing through a buncher B and a catcher R, is deflected by plates D+ and D- connected to a D.C. supply, the amount of deflection imparted to individual electrons being inversely proportional to their velocities. The electrons are collected by electrodes C1, C2 and C3 which are connected to respective tapping points on the secondary winding S of a pulse transformer supplying the klystron in such a manner that the greatest retarding field acts on the electrons having the greatest velocity. More than three collector electrodes may be employed, and the deflecting plates D+ and D- may be supplied from the pulse supply source or may be replaced by a magnetic deflecting field. An alternative arrangement, Fig. 4 (not shown), requiring no deflecting field employs a series of apertured collector electrodes arranged in the path of the electron beam and connected to graded retarding potentials.
Patent GB-639343-A (GB)
Title: Improvements in spring actuated clips or clothes pegs
IPC: D06F55/02
Filed: 1947-12-29
Abstract: 639,343. Spring clips. HELLKVIST, A. O. Dec. 29, 1947, No. 34377. Convention date, Dec. 9, 1946. [Class 44] A clothes peg comprises two jaws 10, 12 held together by an encircling wire loop 26 and under the influence of a resilient member keeping the jaws pressed against the wire loop and urging the gripping ends of the jaws towards each other, the resilient member being a U-shaped spring 28 disposed in recesses 20 in the jaws adjacent the member 26 so that the effective lever arm of the spring 28 is reduced when the jaws are opened. The wire loop 26 is located in pivot grooves 24 and serves to retain the spring in position. The wire spring may be replaced by a U-shaped strip spring.
Patent GB-1356032-A (GB)
Title: Data retrieval
IPC: G11B20/10
Filed: 1971-07-20
Abstract: 1356032 Transducer head local circuits EMI Ltd 20 July 1971 34486/71 Heading G5R In a phase modulation data retrieval system, the tendency towards high frequency "dropout", e.g. the degrading of the output waveform from that as in Fig. 1(b) to that as in Fig. 1(c) is counteracted by selectively boosting high frequency signal components. In the arrangement of Fig. 2, signals from a replay head 11 are integrated at 12 (to neutralize the differentiating effect of the head) and then fed to a high frequency boost amplifier 13; from there they pass to a phase correction circuit 14 and limiting circuit 15 before despatch to a sampling circuit (not illustrated). Signals of frequency greater than that necessary for reliable data identification are attenuated by a cut-off circuit which may be included in the amplifier 13 or after circuit 14. In a further embodiment (Fig. 4, not shown), low-level high frequency components are boosted more than high-level high frequency components.
Patent GB-344891-A (GB)
Abstract: 344,891. Combination ranges. PARKINGTON, T. R., Tower Ramparts, JACKSON, C. L. H., and ABBOTT, Ltd., G., Crown House Ironworks, Ipswich. Dec. 13, 1929, No. 38185. [Class 126.] Grates; supports for articles to be heated.-The stove comprises a low open fireplace a and a side oven surrounded by jacket spaces c, the lowermost of which communicates with the lower end of an open-topped " induction flue " b arranged, in the construction shown, behind the fire-back n and at the side adjacent the oven. An up-draught is maintained in the flue b by the action of gases from the fire which enter it through an aperture e, and also by the inducing action of gases passing over the open top on their way to the chimney. A part of the flue gases enters the oven jacket c at the top and passes round the jacket under the action of the draught created in it by the induction flue b. A " curtain " or baffle-plate f may be provided to direct the gases into the open end of the top jacket space c. To increase the activity of the fire at the oven side a corrugated fire-cheek i may be provided, and the bottom grate may have an extra aperture adjacent it. A removable hob or trivet d is provided.
Patent GB-521900-A (GB)
Title: Improvements in the manufacture of vehicle and aircraft bodies
IPC: B60R13/02
Filed: 1938-11-26
Abstract: 521,900. Aircraft; cars. PORSCHE, F. Nov. 26, 1938, No. 34515. Convention date, Jan. 15. [Class 4] [Also in Group XXXII] In a vehicle or aircraft body having an internal wall 2 extending at an angle to a main body wall 1 in order to cover the edge of the body lining 5, in the vicinity of the wall 2, a strip 3 of resilient material, e.g., rubber or artificial resin, is provided which is pressed by the wall 2 against the wall 1 to maintain the edge of the lining in a concealed position. The edge of the lining may be formed as shown in Fig. 2, into a loop 10 co-operating with a recess in the strip 3 or, as shown in Fig. 3, the lining may be bent back on itself under the strip at 11, adhesively secured to the part 7 of the strip, and then extended to project with the wall 2 into a groove 4 in the strip.
Patent GB-1007288-A (GB)
Title: Improvements in or relating to fluorine-containing carbon compounds
IPC: C25B3/28
Filed: 1963-09-02
Abstract: Fluorinated organic compounds, e.g. fluorinated acid fluorides, are made by electrolysis using anhydrous HF as electrolyte, and as starting material organic acid halides having at least 2 C atoms in the chain and preferably 3-12 C atoms, and having halogen atoms also in the C-chain.  There may also be an O or S atom present in the chain, e.g. sulphonyl acid halides.  The presence of chlorine or fluorine in the chain tends to stabilize the chain against cleavage in the reaction, but the presence of bromine or iodine promotes cleavage, and the formation of ring compounds.  The presence of a gaseous halogen in the 5th or 6th C atom from the acid radical prevents ring formation.  When the 3rd atom is O or S, the 4th atom must be a halogen-substituted C atom. To obtain a ring compound bromine or iodine is substituted at 3rd C atom for 5-membered rings and at the 4th atom for a 6-membered ring.  A wide range of starting materials and products is specified, e.g. CH3CF2COF produces CF3CF2COF; CHFClCF2OCH2COCl produces CClF2CF2OCF2COF; CH3CH2CF2SO2F produces C3F7SO2F; CF3CHBrCH2COCl produces C3H7COF.  The cyclic fluorinated ether C4F8O is made from CH2BrC2H4COCl. The cell used comprises alternate iron plate cathodes and nickel anodes, and reaction is effected at 4-8 V., and at 0-20  DEG C.  The products when volatile are drawn off with HF, cooled, fractionated and the HF returned to the cell. Involatile products separate as an insoluble layer in the electrolyte.  Specification 735,730 is referred to.