baber/WOPTO huggingface dataset:
Patent GB-1480886-A (GB)
Title: Preparation of 2-deutero-3-fluoro alanine and its salts
IPC: C07C59/00
Filed: 1975-10-27
Abstract: 1480886 Preparing 2-dentero-3-fluoro-DL- alanine and its salts and intermediate therefor MERCK & CO Inc 27 Oct 1975 [8 Nov 1974] 44182/75 Heading C2C 2 - Deutero - 3 - fluoro - DL - alanine or a salt thereof is prepared by subjecting a salt of 3-fluoropyruric acid or a hydrate thereof to reductive amination using aqueous ammonia, to form a salt of 2-imino-3-fluoropropionic acid or hydrate thereof, and an alkali metal borodeuteride as reducing agent, optionally in the presence of LiCl or NaCl as catalyst. In examples, lithium fluoro-pyrurate hydrate is heated with aqueous ammonia, sodium borodeuteride is added after cooling, ammonia is removed by distillation, the solution acidified with HCl, filtered and then passed through an acidic cation-exchange resin, the column being eluted NH 4 OH, the solution is stirred with charcoal and the filtered solution evaporated to provide the product. Lithium fluoro-pyrurate hydrate is prepared by adding C 2 H 5 OOC-CF C(ONa)-COOC 2 H 5  to an HCl/ethyl ether mixture, heating to distill off ether and then under reflux, cooling, filtering, and adding LiOH.H 2 O to a pH of 6À0-6À5.
Patent GB-970421-A (GB)
Title: Process for desulphurising ammoniacal liquor containing hydrogen sulphide
IPC: C10K1/00
Filed: 1960-12-30
Abstract: In a process for removing H2S from ammoniacal liquor which has been used, e.g. to remove H2S from coal gas, a minor part of the liquor to be treated is introduced into a heated column at the top A and a major part at D lower down the column and an aqueous solution containing ammonium carbonate or bicarbonate is added at C to scrub and cool by direct contact gases and vapours rising in the column, the aqueous solution of ammonium carbonate or bicarbonate being obtained by withdrawing at B ammoniacal liquor flowing down the column and cooling the withdrawn liquor externally of the column before returning it to the column. Desulphurized liquor is withdrawn from the base of the column and liquor withdrawn at B may be allowed to stand for a period of 1-60 minutes before being cooled and may be treated with CO2. <PICT:0970421/C4-C5/1>
Patent GB-1222864-A (GB)
Title: Magnetic transducers
IPC: G11B5/10
Filed: 1968-09-24
Abstract: 1,222,864. Magnetic heads. NORTRONICS CO. Inc. 24 Sept., 1968 [10 Oct., 1967], No. 45303/68. Heading G5R. A core holder 10, designed to be joined to a similar holder to define an enclosure for a magnetic transducer, contains an insert 35 to locate and support a core piece, a slot 74 in the front wall 13 and a portion 53 of the insert defining a first reference plane for the core piece, and discontinuities 22, 23 in the side walls 11, 12 locating the insert and defining a second reference plane 81. As shown, a beryllium copper insert 35 is secured in a stamped brass housing 10 by riveting-over protrusions 29, 30 in the base. The insert has integral spring portions 58, 59 to locate half cores 71, 60 against lugs 53, 55 and sides 74, 75 of respective slots in the housing 10. Further slots 31, 65 in the housing and insert accommodate a magnetic screen while notches 32, 33 receive a terminal board. After fixing by adhesive, two such assemblies are lapped and secured together, e.g. by clips, then encased in a screening can having frontal apertures locating against tabs 27, 28. A modified insert (Fig. 8, not shown) of plastics is slotted to form the springs and location channels and is stuck in the housing.
Patent GB-1022098-A (GB)
Title: Improvements in tables
IPC: A47B23/04
Filed: 1964-11-10
Abstract: 1,022,098. Cantilever tables. F. BREMSHEY, and W. FULLING. Nov. 10, 1964 [Nov. 27, 1963], No. 45789/64. Heading A4H. A table comprising a rigid adjustable support 3, 4 disposed on one side of a mobile subframe 2 and a table top 5 cantilevered from the support and adjustable in height, has a detachable additional prop in the form of a rod to support the side of the table top remote from the support 3, 4. The additional prop may comprise two vertically adjustable telescopic members 9, 10, Fig. 1, or an inclined rod 13, Fig. 5 (not shown), whose upper end is slidably and lockably connected to a beam 7 supporting the table top 5, or a cranked rod 22, 23, Fig. 9 (not shown), whose lower arm 23 is vertically adjustable in a sleeve 26. The table top 5 may pivot about the axis of the beam 7 and be locked in position by a clamping screw 8.
Patent GB-1077917-A (GB)
Title: A process of producing a nonachloromonohydroxy diphenyl
IPC: C07C37/02
Filed: 1965-10-29
Abstract: The invention comprises a nonachloromonohydroxydiphenyl having the formula <FORM:1077917/C2/1> It may be made by treating decachlorodiphenyl as a fine powder with an alkaline metal hydroxide at 130-230 DEG  C. for 10 mins.-6 hrs. in the presence of an alcohol as solvent, cooling and filtering the resultant solution to separate the alkaline metal chloride and the unreacted decachlorodiphenyl, removing the alcohol by distillation and adding water to the residue to obtain an aqueous solution of the alkaline metal salts of nonachloromonohydroxydiphenyl and octachlorodihydroxydiphenyl, cooling the aqueous solution obtained to 0-5 DEG  C. thus precipitating the alkaline metal salt of nonachloromonohydroxydiphenyl, filtering this salt from the solution, dissolving it in water, acidifying with an inorganic acid to precipitate the nonachloro compound and drying it. Suitable alcohols are, for example, tertiary butyl alcohol, ethylene glycol, cyclohexanol and benzyl alcohol.
Patent GB-1514105-A (GB)
Title: Process for producing aqueous dispersion of ethylene-vinyl acetate copolymer containing no formalin
IPC: C08F2/16
Filed: 1976-11-04
Abstract: 1514105 Emulsion polymerization of ethylene and vinyl acetate SUMITOMO CHEMICAL CO Ltd 4 Nov 1976 [4 Nov 1975] 46020/76 Heading C3P Ethylene and vinyl acetate are polymerized in aqueous emulsion in the presence of a redox catalyst comprising an oxidizing agent and a reducing agent which is the reaction product of glyoxal or methylglyoxal and an alkali metal, ammonium or zinc salt of a reducing sulphur oxy-acid to produce a dispersion free of formalin. The reducing agent may be preformed or formed in situ. The exemplified emulsions contain hydrogen peroxide or ammonium persulphate the reaction product of glyoxal and sodium bisulphite, hydrolysed polyvinyl acetate or a hydroxy ethyl cellulose and two polyoxyethylene nonyphenolethers, ferrous sulphate and also in Examples 2 and 3 acetic acid, sodium acetate and a third monomer which is N-nbutoxymethylacrylamide. In comparative examples the glyoxal-sodium bisulphite product is replaced by formaldehyde sodium sulphoxylate or glyoxal or sodium bisulphite alone.
Patent GB-1014570-A (GB)
Title: Improvements in or relating to catheters
IPC: A61M25/04
Filed: 1962-12-06
Abstract: 1,014,570. Catheters. G. BROOKE. March 4, 1964 [Dec. 6, 1962], No. 46078/62. Heading A5R. A catheter comprises an inner flexible tube 2 extending through an outer flexible tube 1 having a domed head 4. The tube 1 is slotted at 7 and the inner tube 2 is connected to the outer tube 1 adjacent the slotted portion such that, when tube 2 is retracted relatively to tube 1, the slotted portion buckles and forms a projection which retains the catheter in the body. Further, the tube 1 may be connected to the tube 2 at its free end and the tube 1 may be provided with slits 16 in wall parts 17, so that tube 1 may be contracted by lateral bowing of wall parts 17. The catheter is inserted into the bladder with the wall parts 17 in a position as in Fig. 2. On straightening the wall parts 17, the catheter head is deflected to a position shown in Fig. 4. The outer tube 1 may be provided with apertures 8 and 11 and the device may be used for irrigation purposes. The tubes may be made of polyethylene.
Patent GB-1064226-A (GB)
Title: Method and apparatus for the sampling and the processing of narrow-band signals
IPC: G06G7/19
Filed: 1964-11-12
Abstract: 1, 064,226. Correlation detectors. NEDERLANDSE ORGANISATIE VOOR TOEGEPASTNATUURWETENSCHAPPELIJK ONDERSOEK TEN BEHOEVE VAN DE RIJKSVERDEDING. Nov.12, 1964 [Nov.12, 1963], No.46164/64. Heading G1U. In a method of sampling a signal having a bandwidth B centred on a frequency f o , the sample rate f s satisfies the condition where m is an integer. It is shown that if the above condition is satisfied only one sampling series is required to represent the signal, resulting in simplified circuitry of, for example, correlation and matched filter arrangements. In one arrangement, Fig. 5b, in which the function is to be derived the signal s(t) is fed to a chain of f s T delay elements 7, each producing a delay of 1/f s  seconds and the outputs from these elements are multiplied in 8 with weighting coefficients p(T k ) which are samples of p(T). The resulting signals are then summed in unit 9 to give a continuous output #(t). Where a sampled output Ï(t) is required, Fig. 6b the input signal s(t) is sampled at a rate f s  by switch 2 and the samples fed to a chain of storage elements 5 which shift the stored information along one unit every 1/f s  th second. The output from each store is then multiplied by weighting coefficients p(T k ) in units 12 and the resulting signals summed in adder 13. The system may also be applied to limit narrowband signals.
Patent GB-1107492-A (GB)
Title: Lubricating and load carrying pad for railway car centre bearings and the like
IPC: F16C33/10
Filed: 1965-11-01
Abstract: 1,107,492. Railway vehicle undercarriages, mounting rudders, road vehicle draw gear. ROBINSON TECHNICAL PRODUCTS Inc. 1 Nov., 1965 [13 Nov., 1964], No. 46226/65. Headings B7L, B7T and B7V. [Also in Division F2] A bearing comprises parts 24, 12 having plane bearing surfaces 26, 18 and a resilient lubricant-containing mass of compressed metal wire forming a pad which is disposed between the bearing surfaces. Under load, the pad yields only slightly, thus retaining the lubricant. In Fig. 1, pad 30 is positioned in a cavity formed in a railway car bolster by ring 16, and a plate 24 attached to the oar body is positioned in the cavity 14 over the pad with a pin 28 extending through apertures 32, 20. In Fig. 2 (not shown), a flattened tube of knitted wire is wound to form a ring shaped pad (40) which is then compressed. The tube may be corrugated before winding.
Patent GB-1064028-A (GB)
Title: Vehicle location system
IPC: G08G1/16
Filed: 1964-11-13
Abstract: 1,064,028. Ultrasonic distance-measuring. STANDARD TELEPHONES & CABLES Ltd. Nov. 13, 1964 [Nov. 16, 1963], No. 46296/64. Heading H4D. In an ultrasonic warning- system for indicating the proximity of one road vehicle to another each vehicle carries a radio receiver and at least one ultrasonic pulse-transmitter and receiver, and the ultrasonic pulse-transmitters in all vehicles are triggered substantially in synchronism by a radio pulse received from road-side radio transmitters, the distance between one vehicle and an adjacent vehicle being measured by measuring the time interval between the arrival, at the one vehicle, of the radio pulse and of the ultrasonic pulse from the adjacent vehicle. For detecting vehicles travelling in the same direction and either in front or behind, each vehicle carries a forwardly radiating ultrasonic transmitter 3a and rearwardly directed microphone 12 (constituting a first channel operating at, for example, 30 kc/s.), and a rearwardly radiating ultrasonic transmitter 4a and forwardly directed microphone 13 (constituting a second channel operating at, for example, 50 kc/s.). The time interval is measured in the two channels by electronic counters 5, 6 which are fed through gates 7, 8 with clock pulses from a generator 9. The leading edge of the demodulated radio pulse from the radio receiver, 1, sets the counters 5, 6 to zero and the trailing edge of the pulse then triggers the ultrasonic transmitters 3a, 4a and opens gates 7, 8 to start the counters 5, 6. The arrival of an ultrasonic pulse at microphone 12 or 13 closes the appropriate gate 7 or 8 to stop counter 5 or 6 respectively. The counters 5, 6 have visual read-outs 15, 14 indicating distance, each readout comprising a row of neon lamps which may be of different colours to indicate different distances. The measurement cycle is repeated at the pulse repetition frequency of the roadside radio transmitters (S) (Fig. 1, not shown), e.g. once every one to five seconds. In order to detect oncoming vehicles, a forwardlydirected microphone (not shown) may be switched into the 30 kc/s. channel in place of the rearwardly-directed microphone 12.
Patent GB-1489830-A (GB)
Title: Acrylic powder paint compositions
IPC: C09D135/02
Filed: 1975-11-11
Abstract: 1489830 Powder paint composition DAINIPPON INK & CHEMICALS Inc 11 Nov 1975 [11 Nov 1974] 46553/75 Heading C3B A thermosettable powder paint composition comprises: (1) a polymer, having a ring-andball softening point of 80-150‹ C. and a number average M.W. of 3000-15,000, derived from (by weight): 10-40% of #-methylglycidyl (meth)acrylate or a mixture containing at least 30% thereof with glycidyl (meth)- acrylate; 20-80% of styrene; 3-40% of a dialkyl ester of an aliphatic unsaturated dibasic acid; and 0-30% of an alkyl (meth)acrylate; and as curing agent (II) an aliphatic saturated dicarboxylic acid. A typical I comprises (by wt.) 15% #-methylglycidyl methacrylate, 10% glycidyl methacrylate, 40% styrene, 15% di-nbutyl fumarate and 20% n-butyl methacrylate. Examples of II are decane-1,10- and octane-1,8- dicarboxylic acids.
Patent GB-1434842-A (GB)
Title: Controller for fluid operated device
IPC: B62D5/097
Filed: 1973-03-28
Abstract: 1434842 Hydrostatic steering systems EATON CORP 28 March 1973 [3 April 1972] 46549/75 Divided out of 1434841 Heading B7H [Also in Division F1] In a hydrostatic steering controller 10 comprising relatively rotatable valve elements 41, 42 and a metering section with intermeshing toothed rotor and stator members 70, 34 for controlling the application of pressure fluid to a steering motor 24 linked to steerable wheels 29, the metering section is surrounded by a pressure-tight casing 100 which is pressurized from within the metering section through a passage 110 in one end plate 36 of the metering section. The pressure in the casing 100 controls distortion of the metering section components to reduce leakage around the rotor 70 and consequent loss of correspondance between movements of a steering wheel 54 and the steered wheels 29. One end of an axial bore 76 in the rotor 70 is sealed by a plate 108 so that the rotor is pressed by fluid pressure into frictional engagement with the other end plate 32 to create a braking force on the rotor 70 which is proportional to the output pressure communicated to the steering motor 54 so that the manual steering effort increases markedly to inhibit further rotation of the steering wheel 54 when the output pressure rises to maximum at full lock. In another embodiment, Fig. 4 (not shown), the housing (100<SP>1</SP>) surrounding the metering section is pressurized through a passage (120) in the stator member (34<SP>1</SP>) and no sealing plate is provided in the rotor bore (761) inward distortion of the end plate (36<SP>1</SP>) of the metering section under the external pressure being relied upon to produce a braking force on the rotor (70<SP>1</SP>).
Patent GB-1123309-A (GB)
Title: Rotary thermal-regenerator matrix
IPC: F28D19/04
Filed: 1966-10-19
Abstract: 1,123,309. Rotary thermal regenerator matrix. GENERAL MOTORS CORP. 19 Oct., 1966 [19 Nov., 1965], No. 46745/66 Heading F4K. A cylindrical radial-flow rotary thermal regenerator matrix comprises a stack of arcuate sheet-metal layers, each layer having radially extending corrugations 21, which interengage when the layers are stacked, at least some of the layers having between said corrugations surface relief in the form of projections or ridges or (as shown) minor zig-zag corrugations 19 which cross each other on adjacent layers. The stack may comprise a plurality of individual arcuate or annular elements, or it may be formed as a coil made up of a single strip or two or more interleaved strips. The core shown has two such interleaved strips 17, 18, having identical corrugations 19, but reversed in direction before the radial corrugations 21 are formed. These corrugations 21 are deeper at the inner surface of the matrix than at the outer surface so that the strips form coils. Also they taper to ensure that they telescope within one another when the coils are stacked to allow corrugations 19 to make contact and to ensure strictly radial flow. Teeth 23, 25 on end rings 10, 9, respectively, engage the radial corrugations 21 of the end turns of the core and tie-bolts 13 in sleeves 37 are passed through holes 39 in the strips to connect the end rings. In other embodiments, the corrugations 21 may extend alternately in opposite directions from the strips (Fig. 8, not shown), or the direction of the zig-zag of corrugations 19 is periodically reversed in a single strip (Fig. 9, not shown), so that the corrugations 19 contact, as above, when the coil is stacked.
Patent GB-1110827-A (GB)
Title: An apparatus for measuring non-linearity of the current/voltage characteristic of an electric component
IPC: G01R27/02
Filed: 1965-11-04
Abstract: 1,110,827. Impedance testing. RADIOMETER A.S. Nov. 4, 1965 [April 23, 1965], No. 46783/65. Heading G1U. Voltage from a generator 1, having an e. m. f. of very pure sinusoidal waveform with the fundamental frequency f1, is applied across an electric component 2, such as a resistor, capacitor or self-induction coil, through an impedance-transforming network 3. If there is non-linearity in the current/voltage characteristic of component 2, harmonic voltages arise across its terminals. The network 3 comprises an air-cored transformer 10, capacitors 14 to 17 and an oscillatory LC circuit 18, 19 tuned to the frequency n, f1, where n is an integer, not less than 2. Network 3 is connected to a selective voltmeter 4 which measures the n<SP>th</SP> harmonic voltage having a frequency n, f1. This voltage is taken as a measure of the non-linearity of the current/voltage characteristic. Usually the dominant harmonic is the third harmonic. The equivalent circuit of transformer 10 comprises a stray inductance 11, a main self inductance 12 and an ideal transformer 13. The values of capacitors 14 to 17 are such that at frequency n. f1 capacitor 16 has a series resonance with stray inductance 11 so that voltmeter 4 may be assumed to be in direct contact with ideal transformer 13 and capacitor 17 has parallel resonance with inductance 12 so that the latter does not constitute a load upon component 2. The impedance network consisting of capacitor 14 and oscillating circuit 18, 19 is so dimensioned that at frequency f1 it acts as a capacitor which together with capacitor 17 has parallel resonance with main self inductance 12 so that the latter does not constitute a load upon component 2. At frequency f1 capacitor 15 has series resonance with self inductance 11 and generator 1 may be assumed to be in direct contact with ideal transformer 13. The output voltage of generator 1 is controlled by an amplitude control unit 20 which compensates for the ohmic voltage drop in transformer 10. Instead of one transformer, two transformers may be used, one coupling component 2 to the generator and the other coupling the component to selective voltmeter 4.
Patent GB-1249492-A (GB)
Title: New aryloxyalkanoic acid and salts thereof
IPC: C07C51/08
Filed: 1968-10-04
Abstract: 1,249,492. Aryloxyalkanoic acid derivative. J. R. GEIGY A.G. 4 Oct., 1968 [6 Oct., 1967], No. 47167/68. Heading C2C. Novel 2-(4-biphenylyloxy)-heptanoic acid (I) and its salts with organic and inorganic bases are prepared (a) by hydrolysing a functional derivative of the acid; (b) decarboxylating (4 - biphenylyloxy) - n - pentyl - malonic acid or a functional derivative thereof; or (c) reacting an alkali metal salt of p-phenylphenol with a salt of an ester of 2-hydroxyheptanoic acid (the hydroxy group being esterified) and where desired in (a), (b) or (c) forming the salt by conventional methods. Intermediates isolated are 2-(4-biphenylyloxy)- heptanoic acid ethyl ester, prepared from sodium p-phenylphenate and 2-bromoheptanoic acid ethyl ester; ethyl 2-n-pentyl-2-cyano-acetate, prepared from ethyl cyanoacetate, metallic sodium and n-pentyl bromide; ethyl 2-n-pentyl- 2-bromo-2-cyano-acetate, prepared from the previous intermediate by bromination; ethyl 2- (4 - biphenylyloxy) - 2 - n - pentyl - 2 - cyanoacetate prepared by reacting the appropriate 2-bromo derivative with sodium p-phenylphenate; 2 - (4 - biphenylyloxy) - 2 - n - pentyl- 2-cyano acetic acid, prepared by hydrolysis of the ethyl ester; 2-(4-biphenylyloxy)-heptanoic acid nitrile, prepared by decarboxylation of the former intermediate; and diethyl-(4-diphenylyloxy)-n-pentyl-malonate, prepared from sodium p-phenyl-phenate and diethyl n-pentyl-bromomalonate. Pharmaceutical compositions comprise a compound (I) or a salt thereof in conjunction with a suitable excipient for oral or rectal administration and exhibit hypolipemic activity.
Patent GB-1182015-A (GB)
Title: Portable Bags
Inventor: WELLS FRANK WARREN
IPC: B65D33/06
Filed: 1967-10-18
Abstract: 1,182,015. Carrier bags. CULODENSE Ltd. 18 Sept., 1968 [18 Oct., 1967], No. 47402/67. Heading A4G. A multicompartment bag comprises a pair of pouches 4, 5, Fig. 1 of flexible sheet connected at a mouth edge by a panel 1 having a central handle slot 8 through which is passed the grip portion 11, Fig. 2 of a handle having a shoulder 12 about which the panel is folded to bring the pouches together when carried. The pouches may open inwards or outwards according to the fold, and a plurality of pouches and panels may be accommodated on one handle which may also carry a cover sheet.
Patent GB-1451948-A (GB)
Title: Coating compositions their preparation and use
IPC: C09D5/00
Filed: 1973-10-11
Abstract: 1451948 Coating compositions PPG INDUSTRIES Inc 11 Oct 1973 [11 Oct 1972] 47435/73 Headings C3P and C3R Non-aqueous polymeric coating compositions comprise a solution of at least one polymer containing at least 4% by weight of units of a hydroxyl-containing ethylenically unsaturated monomer, and at least 0À5% by weight, based on polymer solids, of microgel particles comprising cross-linked polymeric particles having a particle size of from 1-40 microns and being substantially insoluble in tetrahydrofuran. The hydroxyl-containing component of the first polymer is preferably a hydroxyalkyl ester of acrylic or methacrylic acid; other usable hydroxy monomers include hydroxyalkyl esters of maleic or fumaric acid, and allyl or methallyl alcohol. Comonomer components which may be present in the hydroxyl-containing polymer include unsaturated carboxylic acids and their derivatives (esters, amides, nitriles) and styrene and its derivatives. The hydroxyl-containing polymer is suitably prepared by dispersion polymerization in an organic liquid in the presence of a polymeric dispersion stabilizer, whereby, in addition to the production of the main polymer product, microgel particles are formed by crosslinking interpolymerization of the dispersion stabilizer and at least one of the monomers used. A solvent for the hydroxyl-containing polymer is then added to the dispersion to form a solution. Alternatively, the microgel particles may be prepared separately and added to a solution of the hydroxyl-containing polymer. The polymer solution is preferably mixed with an aminoplast resin cross-linking agent, e.g. a (butylated) melamine-formaldehyde resin. In one embodiment,the hydroxyl-containing polymer also containing carboxylic acid units is modified by reaction with an imine; coating compositions containing such a product are resistant to solvent popping. The compositions of the invention, which may be pigmented (e.g. with metallic pigments) and may also contain other additives, can be used for coating paper, metal, wood, paperboard or plastic substrates; a particular application is the coating of automobile bodies.