baber/WOPTO huggingface dataset:
Patent GB-1205169-A (GB)
Title: Improvements in or relating to the processing or irradiated nuclear fuel
Inventor: MILLS ALFRED LEONARD
IPC: G21C19/46
Filed: 1968-09-18
Abstract: 1,205,169. Processing spent nuclear fuel. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 Aug., 1969 [18 Sept., 1968], No. 44452/68. Heading G6R. Irradiated monocarbide nuclear fuel is converted to oxide by heating in CO 2 . For example (UPu)C is converted to (UPu)O 2  at 1000- 1100 C. The oxidation product is soluble in nitric acid, apart from fission product sludge; the solution may be subjected to a conventional solvent extraction process for the recovery of uranium and plutonium.
Patent GB-1475665-A (GB)
Title: Corner tooth assembly for an earthmoving implement
IPC: E02F9/28
Filed: 1975-10-29
Abstract: 1475665 Digger blade-assemblies CATERPILLAR TRACTOR CO 29 Oct 1975 [31 March 1975] 44628/75 Heading E1F A corner tooth assembly, for an earth-moving implement 10, e.g. a dozer blade, having an upright sidewall 30 and a cutting edge 16 disposed in laterally extending relation from the sidewall, includes a corner tooth adapter having a rearward portion 40 the outer surface 46 of which converges rearwardly towards the sidewall 30 to which the portion 40 is secured to a lower forward outside surface thereof and a nose portion 52 extending forwardly of the sidewall, and a replaceable wear tip 42 mounted on the nose portion of the adapter so that loads on the tip during forward movement of the implement are transmitted through the adapter directly rearwardly to the sidewall without affecting the cutting edge. Preferably the rearward portion 40 of the adapter is secured to the sidewall 30 by welding 50 and the wear tip 42 is secured to the adapter by quick-release retaining pin means 78. The wear tip may extend forwardly and below the cutting edge. The adapter may be formed with an integral, outwardly projecting rib 60 for protecting the tip from being forced forwardly off the adapter during reverse movement of the implement. USA Specifications 2732639, 2914868, 2965989, 2841897 and 3851413 are referred to.
Patent GB-1084724-A (GB)
Title: Improvements relating to the sulphonation and sulphation of organic compounds
IPC: B01F15/00
Filed: 1964-11-02
Abstract: In a process for the continuous sulphonation or sulphation of organic substances with SO3 mixed with an inert gas, the gas mixture is dispersed, in the form of bubbles of diameter at most 5 mm., in the organic substance in the liquid phase at a temperature of 15-70 DEG C. and the reaction mixture is passed between two cooling surfaces, one of which is movably mounted in relation to the other and is pro vided with protruding members which impart a rotating and laterally advancing movement to the reaction mixture as a whole.  Suitable organic compounds are fatty alcohols, prefer ably containing one or more double bonds, benzene, toluene, nonylbenzene, xylene, dodecyl benzene and nonyl naphthalene. Examples are given in which dodecyl benzene, lauryl alcohol, an alkyl phenolethylene oxide adduct, tridecyl alcohol and 2-ethylhexanol are sulphonated or sulphated.  A suitable apparatus for carrying out the process is described (see Division B1).
Patent GB-1328075-A (GB)
Title: Determination of fine dust concentrations
IPC: G01N21/53
Filed: 1971-09-27
Abstract: 1328075 Determining dust concentration BERGWERKSVERBAND GmbH 27 Sept 1971 [21 Oct 1970] 44899/71 Heading G1A In an apparatus for determining the dust concentration in an atmosphere a beam of radiation from a source 1 in the wavelength range 800-1000 mm is directed as shown into a chamber 13 and encounters dust particles which scatter the incident beam 5 causing a stray light beam 6. The beam 6 is that portion of the scattered light which diverges out at an angle between 60 degrees and 80 degrees (preferably 70 degrees) from the path of the primary beam 5. The stray light is directed as shown to a receiver 12 which also receives a comparison beam 10 from the light source. The receiver 12 may comprise one photo-electric device which alternately receives each beam, or, it may comprise two photo-electric devices which each receive a corresponding beam. The output from the receiver is fed to a compensator circuit and thence to a meter 14. The beam 10 passes through an attenuator in the form of two polarization plates 8 so that intensity can be selectively altered by rotation of an analyser 9. The analyser 9 is rotated until the meter 14 indicates that the beams are equal in intensity and the angular rotation of the analyser thereby provides a measure of the scattered light and thus a measure of the dust concentration.
Patent GB-1071968-A (GB)
Title: Circuit arrangement with at least one non-linear dielectric element operating in the state of thermal autostabilization
IPC: H03F11/00
Filed: 1964-11-04
Abstract: 1,071,968. D. C. voltage measurement. CESKOSLOVENSK‡ AKADEMIE VED. Nov. 4, 1964 [Nov. 6, 1963 (2)], No.44939/64. Heading G1U. [Also in Division H3] A D. C. amplifier, e.g. for use in a voltage measuring circuit, utilizes a tandel (a non-linear dielectric element operated in the state of autostabilization close to the Curie temperature) the bias on which is provided by the D. C. input signal to control the amplitude of even harmonics in an output circuit, and a selected harmonic being synchronously detected to provide a D. C. output. In the electrometer of Fig. 4 two tandels C N , C<SP>1</SP> N  are connected in a bridge circuit with two linear impedances, e.g. capacitors Z, Z<SP>1</SP> and the D. C. input voltage is applied between V 1  and V 2 . A variable bias source B is provided for initially balancing the bridge. The bridge output diagonal includes a series resonant circuit L 1 , C 1  coupled to a parallel resonant circuit L 2 , C 2  tuned to twice the frequency of the supply from generator G, which serves both to energize the bridge and to heat the tandels. The second harmonic output is amplified and supplied to a synchronous detector S.R. which also receives a reference input derived from a frequency doubler N connected to source G. The D.C. output from S.R. is measured at M. It is stated that one of the elements C N , C<SP>1</SP> N  may be a non-linear capacitor other than a tandel.
Patent GB-1261309-A (GB)
Title: Process for the nitrosylation of organic compounds
IPC: C07D487/18
Filed: 1970-09-22
Abstract: 1,261,309. Nitrosylation. RHONE-POULENC S.A. 22 Sept., 1970 [22 Sept., 1969], No. 45000/70. Heading C2C. Liquid organic compounds are nitrosylated by nitrous fumes (NO/NO 2  mixtures with or without O 2 ), which fumes are substantially free from O 2  when they are introduced into the reaction mixture, and the NO/NO 2  molar ratio being at least 9 : 1. Examples relate to the conversion of phenol to p-nitrosophenol, 1,4-diphenyl piperazine to 1,4-di-(p-nitrosophenyl)- piperazine, and hexamethylene tetramine to dinitrosopentamethylenetetramine (i.e., (CH 2 ) 5 N 4 (NO) 2 ).
Patent GB-1410780-A (GB)
Title: Through-hole plated printed circuits
IPC: H05K3/24
Filed: 1972-09-29
Abstract: 1410780 Printed circuits EXACTA CIRCUITS Ltd 28 Sept 1973 [29 Sept 1972] 45159/72 Heading H1R A GRP substrate is coated with copper on each exposed face and holes extend through both the layers and the substrate. A second layer of copper is deposited on each first layer and on the walls of the holes, e.g. as a thin electrolessly plated layer, or a similar layer plus a thicker electroplated layer. A layer of positive photoresist is deposited over the first and second layers but not on the hole walls, and discrete portions adjacent to each hole are light exposed over a photomask and removed by development and dissolution to uncover a portion of the layers surrounding the hole. A layer of Cu and of Sn-Pb alloy are electroplated thereon to cover the uncovered portion and the hole walls and then portions of the photoresist are again exposed to light, developed and dissolved; the uncovered parts being etched out where unprotected either by photoresist or Sn-Pb alloy, to define the required printed circuit tracks; with a pad of alloy surrounding each hole. The photoresist is removed, the boards are profiled, cleaned, and coated with an epoxy solder resisting lacquer. The Sn-Pb alloy may be replaced with Au or other noble metal.
Patent GB-1397298-A (GB)
Title: Prostaglandin derivatives
IPC: C07C35/06
Filed: 1972-10-02
Abstract: 1397298 Prostaglandin derivatives SANKYO CO Ltd 2 Oct 1972 [30 Sept 1971 5 July 1972] 45322/72 Heading C2C Optically active prostaglandin derivatives of the formula or the mirror image thereof, or racemic mixtures thereof, wherein R is C 1-8  alkyl, R<SP>2</SP> is H or 2- tetrahydropyranyl, R<SP>2</SP> is H or OH, A is C 1-8  alkylene, X is trans-CH=CH- and Y is cis- -CH=CH- and pharmaceutically acceptable salts thereof are prepared by reacting optically active compounds of the formula or the mirror image thereof, or a racemie mixtures thereof, with alkali metal salts of compounds of the formula (R<SP>3</SP>) 3 <SP>#</SP>P-<SP>#</SP>CH-A-COON wherein R<SP>3</SP> is a hydrocarbyl group, and, if desired acidifying and salifying the resulting products. Compounds in which R<SP>1</SP> is H are also obtained by hydrolysing the corresponding compounds in which R<SP>1</SP> is 2-tetrahydropyranyl with weakly acidic solutions. 2 - [2# - (3 - Hydroxy - trans - 1 - octenyl). cyclopent-1α-yl]acetaldehyde is obtained by hydrolysing the corresponding tetrahydropyranyl ether. Methyl 2-(2#-formylcyclopent-1α-yl)-acetate is obtained by isomerizing methyl 2-(2#-fomylcyclopent-1#-yl)acetate, resulting from the oxidation of methyl 2-(2#-hydroxymethylcyclopent-1#-yl)- acetate, which is made by esterifying 2-(2#- hydroxymethylcyclopent-1#-yl) acetic acid, obtained by hydrolysing the 2-(2-hydroxymethylcyclopentyl)acetic acid # lactone. 8 - Formyl - 2 - oxabicyclo-[3,2,1]-octan - 3- one is prepared by oxidizing 8-hydroxymethyl-2- oxabicyclo-[3,2,1]-octan - 3 - one resulting from reacting a corresponding alkyl ether with a boron trihalide. Pharmaceutical compositions, suitable for parenteral administration, contain the above novel prostaglandin derivatives or pharmaceutically acceptable salts thereof and pharmaceutical carriers or diluents. The compounds possess oxytocic activity.
Patent GB-1162176-A (GB)
Title: Improvements relating to Key Fobs
Inventor: EDMONDS HAROLD
IPC: A44B15/00
Filed: 1966-10-12
Abstract: 1,162,176. Key fobs. EDMONDS BROS. Ltd. 1 Sept., 1967 [12 Oct., 1966], No. 45513/66. Heading B8F. A key fob consists of two walls 12 of flexible material with a tongue 14 cut from one wall and tucked between the walls to form a loop to carry a medallion 13 or other article. In the form illustrated the fob is formed from a single leather blank stitched round the edges and transversely at 16 and with the tongue 14 secured adhesively. A neck 10 in the blank passes through the usual ring 11. The space in the front wall from which the tongue has been removed may retain a card.
Patent GB-1017640-A (GB)
Title: Printing presses
Inventor: GRANEEK MAURICE
IPC: B41F9/00
Filed: 1963-11-19
Abstract: 1,017,640. Printing apparatus. THE PRINTING, PACKAGING & ALLIED TRADES RESEARCH ASSOCIATION. Nov. 18, 1964 [Nov. 19, 1963], No. 45621/63. Heading B6C. In a rotary printing press comprising a plate cylinder 1 and a stationary impression pad 2 the material to be printed is applied to the cylinder by compressed air issuing from the undersurface of the pad, the air being supplied and distributed through inlet 24, longitudinal bore 23, outlets 26, 27 and a longitudinal groove 25. Limited movement between the pad and the cylinder is provided through the mounting of the pad in the frame of the press, stub axles 9 being journalled in large frame apertures 10. A pair of adjustable resilient mountings 8 mounted on the frame at each end of the pad serves to hold the latter in position whilst providing forces arranged to balance the forces exerted on the pad by the air under pressure thereby maintaining a predetermined gap between the pad and the material. Each mounting 8 comprises a spring housed in a casing and acting on a ball 21 engaging a suitable detent in the pad. The Specification also states that the pad 2 may be incorporated in an oscillating flat-bed press.
Patent GB-1438850-A (GB)
Title: Sealing devices in rotors of rotary piston engines
IPC: F01C19/06
Filed: 1973-10-01
Abstract: 1438850 Rotary positive-displacement machines AUTOMOBILES CITROEN S A 1 Oct 1973 [2 Oct 1972] 45856/73 Heading F1F An apex sealing device for the rotor of a trochoidal-type rotary internal combustion engine comprises a central sealing bar 5, and angular sealing segments 6 which sealingly engage respective ends of bar 5 by means of oblique surfaces 5a, 6a and which have lateral projections 12 integral therewith which provide axially outwardly facing stop surfaces 14 which engage inwardly facing surface 13 of sealing drums 8, so that the radially outward force provided by spring 11 causes axially outward biassing of the angular segments 6 due to the oblique surfaces and thus of the drums 8 due to the abutting stop surfaces 13, 14. The projections may be rectangular in transverse crosssection Fig. 4 (not shown) rather than triangular, or the drums may have radial slots with radially inwardly facing bottom surfaces which are engaged by outwardly facing support surfaces of the angular segments Figs. 5 and 6 (not shown).
Patent GB-1446577-A (GB)
Title: Automatic focus adjustment system
IPC: G02B7/36
Filed: 1973-10-02
Abstract: 1446577 Automatic focusing ASAHI KOGAKU KOGYO KK 2 Oct 1973 [4 Oct 1972] 46042/73 Heading H4D In an automatic focusing system, utilizing the principle of maximizing the high frequency content of the image to be focused, the image is nominally focused on a solid state scanner 4, comprising an array of electronically scanned miniature photodiodes, whereby the output of the scanner 4 is analysed for its high frequency content, to generate a correction signal for driving the focusing optical system 1 into focus. In the arrangement of Fig 3, the scanner is driven by pulses from a clock circuit 5 via a drive circuit 6 and the video signal, after differentiation at 8 has a high frequency component selected by a filter 9 for investigation. The component is therefore detected at 10 and its value at two settings of the focusing lens 1 stored in respective memories 11a, 11b. A comparator 12 determines which setting gives the higher component and causes the servomotor 13 to adjust the lens 1 accordingly. To allow for different scenes having different high frequency contents, a plurality of circuits 9, 10, 11a, 11b, 12, may be arranged in parallel (Fig 5, not shown) using filters 9 having different pass-bands. In the arrangement of Fig. 7, the detector array 18 is physically oscillated along the optical axis (or lens 15 may alternatively be oscillated) to ceuse the focus to vary. Fig. 8a shows the output of the array, t o  being the period of the array or lens oscillation and t s  being the period of scanning of the array. Fig. 8b shows the output of the rectifier 25 during the same part, Fig. 8c of the oscillatory motion of the array on lens for the case of (i) oscillation about the focus, (ii) oscillation to one side of focus and (iii) oscillation to the other side of focus. A phase detector 26 effectively multiplies together respective waveforms of Figs. 8(b) and 8(c) to give the waveforms of Fig. 8(d). On integration these give the signals 8(e) for application to the servomotor 28.
Patent GB-1100267-A (GB)
Title: 9-amino-5-o-desosaminyl-3,6,11,12-tetrahydroxy-2,4,6,8,10,12-hexamethylpentadecane-13-olide and 9-amino-3,5,6,11,12-pentahydroxy-2,4,6,8,10,12-hexamethylpentadecane-13-olide
Inventor: DJOKIC SLOBODAN
IPC: C07D313/00
Filed: 1966-10-14
Abstract: The novel compounds 9-amino-5-0-desosaminyl - 3,6,11,12 - tetrahydroxy - 2,4,6,8,10-12 - hexamethylpentadecane - 13 - olide (I) and 9 - amino - 3,5,6,11,12 - pentahydroxy-2,4,6,8,10,12 - hexamethyl - pentadecane - 13 - olide (II), are prepared by hydrolysing 9-amino-3 - 0 - cladinosyl - 5 - 0 - desosaminyl - 6,11,12-trihydroxy - 2,4,6,8,10,12 - hexamethyl - pentadecane-13-olide with 1% hydrochloric acid solution in methanol to prepare (I), and with 2N hydrochloric acid to prepare (II).
Patent GB-1033669-A (GB)
Title: Improved apparatus for the carrying out of slowly progressing chemical reactions in the liquid phase
IPC: B29C48/405
Filed: 1962-12-07
Abstract: 1,033,669. Screw conveyer. H. J. ZIMMER. Dec. 7, 1962 [Dec. 7, 1961], No. 46293/62. Heading B8A. [Also in Division B1] A conveyer suitable for carrying out a chemical reaction (see Division B1) comprises at least two enmeshing worms supported horizontally in a container, the lower part of which closely surrounds the worms, an inlet and an outlet; wherein (a) the worms are of the same pitch, of the same hand and the relative phases of which are such that when rotated there is at least some interengagement to effect mutual self-cleaning, (b) the flanks of the worms have radii of curvature equal to the distance between the axes of adjacent worms (f, Fig. 8) and (c) the centre of curvature of each flank is at a distance from the axis equal to the greatest radial dimension of the adjacent worm (g, h, Fig. 8). As shown in Fig. 2, material is introduced through inlet 41 and removed from outlet 42 by means of a further conveyer screw 67 and a vacuum is maintained in the apparatus, being applied through the outlet 44. The worms are driven by motor 52 through suitable gearwheels (see Fig. 4, not shown). Heating jackets 46, 47 and 48 surround the chamber. The illustrated apparatus has three worms supported in a horizontal plane. The worms may be of various kinds, and may or may not be identical. Thus Figs. 5 and 6 illustrate identical worms, those in Fig. 5 being similar to that shown at 19 in Fig. 8 and those in Fig. 7 being similar to that shown at 20 in Fig. 8. Fig. 9 shows a pair of similar worms having a " negative " core radius, i.e. having the shape of spirally wound worms wrapped around a cylindrical space. In Figs. 10 and 11 there are shown worms in which, considering a cross-section of the worm, the surface of the worm lying on the outer periphery thereof is reduced in length so that phase displacement of the worms is possible. By intermittently producing such phase displacement, opposite sides of the worms may be scraped. This phase displacement may be performed by temporarily changing the relative speeds of rotation of the worms for a predetermined time, e.g. by temporarily halting the rotation of one of the worms. Alternatively, the phase displacement may be achieved by linearly displacing one of the worms. Fig. 2 shows an arrangement for achieving this linear displacement comprising a piston operating in a cylinder 64 having means 65, 66 for admitting fluid to opposite sides of said piston, the axis of the worm being such as to slide through the centre of the gear 54 whilst being forced to rotate therewith: the gear-wheel 54 itself is held against axial displacement.
Patent GB-1473392-A (GB)
Title: Process for enhancing the physical strength of cured cement
IPC: C03C25/1025
Filed: 1974-04-10
Abstract: 1473392 Cement compositions JAPAN INORGANIC MATERIAL CO Ltd 10 April 1974 [20 Nov 1973] 46719/76 Divided out of 1473391 Heading C1H [Also in Division D1] The physical strength of cured cement is enhanced by incorporating into an aqueous cement mixture glass fibres which have been treated to enhance their cement-alkali resistance with an aqueous solution containing one or more of an inorganic oxyacid of phosphorus or a salt thereof for a time sufficient to produce a surface coating, and the mixure is then cured. The fibres may be treated by immersion in the solution, e.g. at 80-95‹ C. for 2 hours, each decrease of 10‹ C. in the temperature requiring an increase of 100% in the treatment time. The concentration of the aqueous solution is preferably less than 10%, e.g. 1%. The fibres may be soda glass optionally containing zirconia.
Patent GB-1353259-A (GB)
Title: Silver halide photosensitiv
IPC: G03C1/34
Filed: 1972-10-10
Abstract: 1353259 Silver halide emulsions FUJI PHOTO FILM CO Ltd 10 Oct 1972 [11 Oct 1971] 46729/72 Heading G2C A silver halide photo-sensitive material includes an antifogging combination comprising a compound of formula in which X and Y each represent =N- or > CR- where R is H or alkyl (1-4C), and at least one polymer containing greater than 50 mol % of one or more recurring units represented by the general formula in which R<SP>1</SP> and R<SP>2</SP> each represent H or alkyl (1-4C) or form, when taken together with the N and C atoms to which they are attached, a 5- to 7 membered heterocyclic ring e.g. pyrrolidone, piperidone, caprolactam. The polymer may be a homopolymer e.g. poly-N-vinyl-N-methylformamide, poly-N-vinyl-N-ethylacetamide, poly-N- vinylpyrrolidone, and poly-N-vinyloaprolactam, a copolymer composed of two or more different recurring units represented by the formula II, or a copolymer composed of greater than 50% of at least one recurring unit of formula II and a monomer polymerizable with the unit. The second monomer preferably gives a recurring unit of formula in which R<SP>3</SP> is H or CH 3 , Z is -OR<SP>4</SP>, R<SP>4</SP> being H or alkyl (1-4C), -OCOR<SP>5</SP>, R<SP>5</SP> being alkyl (1-4C), -COOR<SP>R</SP>, R<SP>6</SP> being H, alkyl (1-4C), hydroxyalkyl (1-4C) or alkoxyalkyl (1-4C) - CON #R 7  R 8  ,R<SP>7</SP> and R<SP>8</SP> being H, alkyl (1-4C), hydroxyalkyl (1-4C) or alkoxyalkyl (1-4C) or together form a heterocyclic ring, -COOR<SP>9</SP>N<#R10 R11, R<SP>9</SP> being alkylene having 2 or 3 carbon atoms and R<SP>10</SP> and R<SP>11</SP> being H, alkyl (1-4C), CN, aryl, substituted aryl or a heterocyclic ring. The copolymer may comprise N-vinylpyrrolidone and vinyl alcohol. The compound and polymer may both be present in a silver halide emulsion layer or a layer adjacent thereto or alternatively the compound is present in one layer and the polymer is present in the other layer.
Patent GB-1322339-A (GB)
Title: Imidazoline derivatives
IPC: C07D233/22
Filed: 1970-10-02
Abstract: 1322339 2 - (2 - Imidazolin - 2 - yl) - benzyl alcohols AMERICAN HOME PRODUCTS CORP 2 Oct 1970 [10 March 1970] 46941/70 Heading C2C Novel 2 - (2 - imidazolin - 2 - yl) - benzyl alcohols of the general formula wherein R<SP>1</SP> is a phenyl, mono- or di-halophenyl, mono- or di-C 1-4  alkyl (not t-butyl) phenyl, trifluoromethylphenyl, mono- or di-C 1-6  alkoxyphenyl, thienyl, pyridyl, furyl or 5,6,7,8-tetrahydro-2-naphthyl group, R<SP>2</SP> is a hydrogen or halogen atom or an amino, C 1-4  alkyl (not tbutyl) amino, C 1-4  alkyl (not t-butyl) or C 1-6  alkoxy group, R<SP>3</SP> is a hydrogen atom when R<SP>2</SP> and R<SP>3</SP> are dissimilar and when R<SP>2</SP> and R<SP>3</SP> are the same they are both selected from hydrogen and halogen atoms and C 1-4  alkyl (not t-butyl) and C 1-6  alkoxy groups, and R<SP>4</SP> and R<SP>5</SP>, which are attached to the same carbon atom, are each a C 1-4  alkyl (not t-butyl) group, and acid addition salts thereof are prepared by reduction of a 2,3 - dihydro - 5H - imidazo[2,1-a]isoindol- 5 - ol or its tautomer of the respective general formulae followed optionally by salification of the product. 2,3 - Dihydro - 5H - imidazo[2,1-a]isoindol - 5 - ols of the second general formula above are prepared by reaction of a benzoic acid and an ethylenediamine of the respective general formulµ reaction of the resulting 1,2,3,9b-tetrahydro-5H- imidazo[2,1-a]isoindol-5-one of the general formula with a sulphonyl chloride of the general formula R<SP>7</SP>SO 2 Cl, wherein R<SP>7</SP> is an optionally substituted hydrocarbon group, and treatment of the resulting sulphonyl derivative of the general formula with a strong acid, followed by a base. Pharmaceutical compositions having antiinflammatory sctivity comprise, as active ingredient, a 2-(2-imidazolin-2-yl)-benzhydrol of the first general formula above or an acid addition salt thereof, in association with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.