baber/WOPTO huggingface dataset:
Patent GB-1077239-A (GB)
Title: Improvements in carbamate usage
IPC: C07F7/18
Filed: 1964-12-18
Abstract: The invention comprises organosilyl tris-carbamates of formula <FORM:1077239/C3/1> where R is a monovalent hydrocarbon, or halohydrocarbon, or a cyanoalkyl radical, R1 is a hydrogen atom or lower alkyl of 1 to 8 carbon atoms, R11 is a lower alkyl radical of 1 to 8 carbon atoms, and compositions, curable to the solid elastic state, of these compounds together with liquid silanol chain-stopped polydiorganosiloxanes of formula HO[Y2SiO]nH, where Y has the same meaning as R, and n is at least 10.  The tris-carbamates may be prepared by reacting an organotrichlorosilane with an amine, and subsequently treating the organotriaminosilane with carbon dioxide. The compositions are prepared by simple mixing, although the tris-carbamate may have to be dissolved in solvents of low boiling-point, and at temperatures of 45 DEG  to 80 DEG  C.  A porous product is obtained on curing.  Monovalent hydrocarbon radicals R may be alkyl, aryl, aralkyl, alkenyl or cycloaliphatic.  A long list of fillers which may be used with these compositions is given.  In the examples, the following tris-carbamates are prepared:- <FORM:1077239/C3/2> and C6H5Si[OCONH.CH3]3.  The example also describe the mixing of each of these compounds with a silanol chain-stopped polydimethyl siloxane to give a rubber sponge in Examples 1, 3, 4 and 5 and a tough silicone rubber in Example 2.
Patent GB-1563595-A (GB)
Title: Halogenoprepnadienes and process for the manufacture thereof
IPC: C07J5/00
Filed: 1976-12-10
Abstract: 2,9 alpha -Dichloro-6 alpha -fluoro-16 alpha -methyl-11 beta ,17,21-trihydroxy- pregna-1,4-diene-3,20-dione compounds of the formula (I) <IMAGE> (R1, R2 = OR where R = H, acid residue) have antiinflammatory effects. They are prepared by reacting corresponding 2-dechloro compounds with chlorine and subsequently eliminating HCl from the 1,2-dichloro compounds obtained in this way.
Patent GB-1398026-A (GB)
Title: Steroid esters
IPC: C07J43/00
Filed: 1972-11-10
Abstract: 1398026 Steroid 3-sulphonates JENAPHARM VEB 10 Nov 1972 51934/72 Addition to 1229732 Heading C2W The invention comprises compounds of formula wherein R 1  is an isopropyl, benzyl, diethylamino, bis - (# - chloroethyl) - amino, pyrrolidino, piperidino or morpholino radical, R 2  is a hydrogen atom or an ethyl, vinyl or ethynyl radical, R 3  is a hydroxyl group or an acetoxy, trimethylacetoxy, propionyloxy, #-phenyl-propionyloxy, valeryloxy, caproyloxy, benzoyloxy, decanoyloxy, methoxy or trimethylsiloxy radical or R 2  and R 3  together represent a keto, oximino, acetoximino, methoximino, trimethylsiloximino or semi-carbazono radical, excluding those compounds in which R 2  is an ethynyl radical and R 3  is a hydroxyl group or trimethylsiloxy radical and excluding 17α-ethynyl-3-(propane-2- sulphonyloxy) - 17# - acetoxy - oestra - 1,3,5(10)- triene; 17α - ethynyl - 3 - (propane - 2 - sulphonyloxy) - 17# - valeryloxy - oestra - 1,3,5(10)- triene; 3 - (propane - 2 - sulphonyloxy) - oestra- 1,3,5(10) - trien - 17 - one; and 3 - (propane - 2- sulphonyloxy) - 17# - valeryloxy - oestra - 1,3,5 (10)-triene. Compounds III are prepared and/or interconverted by one or more reactions selected from: (i) 3-OH+R 1 SO 2 Cl#3-OSO 2 R<SP>1</SP>; (ii) acylation of 17#-OH; (iii) reduction of 17-oxo to OH; (iv) 17-oxo#17=NOH; (v) 17=NOH# 17=NOMe, =NOCOMe or =N.NH.CONH 2 . Pharmaceutical compositions comprise a compound III and a carrier. Pharmacological activity and routes of administration are not specified.
Patent GB-1450064-A (GB)
Title: Plastics laminate and decor sheet therefor
IPC: B32B37/00
Filed: 1973-11-09
Abstract: 1450064 Decorative paper laminates MEAD CORP 9 Nov 1973 [9 Nov 1972] 52253/73 Heading B5N [Also in Division D2] A laminate comprising a core, decor sheet, and overlay is characterised in that the decor sheet has from 10 to 25% by wt. relative to its total weight of particulate polyacrylonitrile resin containing 85% or more of acrylonitrile units uniformly dispersed therein. Suitable polymers and polymer blends for incorporation are listed. The laminate may be made by curing under heat and pressure a resin impregnated core, a superimposed decor sheet of the type described, and a resin impregnated overlay paper. The resin impregnated core and overlay paper may be impregnated with a phenolic and an aminoplast resin respectively.
Patent GB-1446410-A (GB)
Title: Electronic feeding bridge for a telephone line
IPC: H04M19/00
Filed: 1974-12-03
Abstract: 1446410 Automatic exchange systems; impedance converters; active reactances INTERNATIONAL STANDARD ELECTRIC CORP 3 Dec 1974 [10 Dec 1973] 52259/74 Headings H4K H3R and H3U The arrangement of Specification 1,413,860 wherein a subscriber's line is fed with D.C. via a transistor circuit simulating an inductance, is modified by the insertion, between the power supply and the circuit disclosed in the above Specification, of a second circuit identical with the first circuit but placed in back to back relationship therewith. Diodes D1 and D2 are added to the arrangement to protect the transistors against overvoltages.
Patent GB-1144617-A (GB)
Title: A method of and apparatus for shaping a tube
IPC: B29C67/00
Filed: 1967-11-17
Abstract: 1,144,617. Shaping tubes. AMP Inc. 17 Nov., 1967 [22 Dec., 1966], No. 52407/67. Heading B5A. [Also in Division H2] A tube of cold flowable material, e.g. P.V.C. or nylon, is shaped by placing the tube 34 in a cylindrical mould with open ends (comprising the mould parts 15 and 16), inserting a ram into each end of the tube until the rams contact the ends of the tube, inserting another ram longitudinally through one of the rams to define the inside of the shaped tube, and driving the first two rams a predetermined distance towards each other. Ram 21 engages the tube with end 26 and passes into the mould 15, 16 until step 27 makes contact with the mould. The second ram 28 comprises a tapered portion 30, a portion 32 which engages the tube and a portion 33 which engages the mould. A third ram 22 slides inside ram 24 and engages the end of ram 28, thereby defining the inside surface of the tube. Compression of the tube by the first and second rams causes material to flow into the cavities in the outer mould 15, 16 and into the junction of rams 22 and 28. In an alternative embodiment in which a metal tube insert is fixed inside a symmetrical tube, each end ram is hollow, and core rams with rounded ends slide within the rams and hold the metal insert in position during the pressing.
Patent GB-1243246-A (GB)
Title: Volume controller
IPC: H03G3/08
Filed: 1968-11-06
Abstract: 1,243,246. Gain control. KOKUSAI DENKI K.K. 6 Nov., 1968 [8 Nov., 1967; 9 July, 1968], No. 52516/68. Heading H4R. In a gain control circuit the input signal is applied to a bridge circuit 3 the unbalance voltage of which is applied to a differential amplifier 4, having feedback from the output circuit to one input. Gain is controlled by the gauged variation of one resistor R 5  in the bridge circuit and the feedback resistor R 7 a. The variable resistors may be photo-sensitive resistors whose illumination is controlled by varying the energization of. lamps L 1  and L 2 . In an alternative embodiment the control voltage may in part be derived by rectification of the differential amplifier output, to allow control to a selected constant amplitude of output, Fig. 6 (not shown).
Patent GB-1484672-A (GB)
Title: Stopcock valve plugs
IPC: F16K5/02
Filed: 1974-10-31
Abstract: 1484672 Valves COWIE SCIENTIFIC Ltd 31 Oct 1974 [20 Nov 1973] 53873/73 Heading F2V The plug for a stopcock is provided with one or more runner bores 26 which do not intersect the plug passage 20A or surface and receive moulding medium, such as polypropylene, to enable a handle or screwed or other formation to be attached to the plug. The remainder of the plug may be of PTFE and the body of the stopcock may be of glass.
Patent GB-1174045-A (GB)
Title: A Fermentation Process
Inventor: JOHNSON DAVID AARON
IPC: C12N9/84
Filed: 1966-12-05
Abstract: 1,174,045. 6-Aminopenicillanic acid. BRISTOL-MYERS CO. 5 Dec., 1966, No. 64359/66. Heading C2A. [Also in Division C3] A process for the production of a purified aqueous solution of penicillinamidase comprises the steps of: (1) adding to a penicillinamidasecontaining fermentation broth a quaternary ammonium salt and a metal hydroxide or a metal salt having a divalent metallic cation which does not destroy or inhibit penicillinamidase, whereby the penicillinamidase is caused to be affixed to the water-insoluble solids present in the broth, the amount of quaternary ammonium salt being such that the yield of penicillinamidase is greater than that obtained in the absence of the quaternary ammonium salt; (2) separating the water-insoluble solids from the broth; (3) mixing the water-insoluble solids with water, whereby said penicillinamidase is dissolved in the water; (4) separating the penicillinamidase-containing supernatant water layer from the solid materials; (5) adding to the separated water layer a solid absorbing agent incapable of absorbing penicillinamidase; and (6) removing the solid absorbent from the aqueous solution to provide a purified aqueous solution of penicillinamidase. The broth may result from the cultivation of Escherichia Coli in an appropriate nutrient medium. The penicillinamidase may be used to hydrolyse potassium benzyl pencillin to 6-aminopenicillanic acid which may then be used as the starting material for semi-synthetic penicillins.
Patent GB-1391815-A (GB)
Title: High voltage deflection correction in cathode ray tube displays
IPC: H04N3/23
Filed: 1972-11-28
Abstract: 1391815 Cathode-ray tube circuits UNITED AIRCRAFT CORP 28 Nov 1972 [20 Jan 1972] 54819/72 Heading H4T In a cathode-ray tube display system the magnitudes of the X and Y deflection voltages are varied as a function of the square root of the E.H.T. voltage to maintain constant trace lengths (e.g. constant raster size), when variations occur in the E.H.T. voltage. The invention is particularly directed to colour displays using tubes of the "penetration" type. The deflection voltages may be "pincushion" corrected prior to the square root function control or this correction may be combined with such control. Fig. 1 shows an example of the former in which uncorrected x and y deflection voltages at inputs 50, 60 respectively produce, via multipliers 44, 45 and summer 48, a signal 1-K 2 (X<SP>2</SP> + Y<SP>2</SP>) which is multiplied in further multipliers 46, 47 with the original uncorrected voltages x and y to produce pincushion corrected X and Y voltages at terminals 38, 40. The voltages then form the inputs to respective multipliers 26, 28 in which they are multiplied by a signal derived from circuit 32 and which is a function of the square root of the E.H.T. voltage of the supply 16 to produce the required deflection voltages X, Y. In another arrangement (Fig. 2), in which the pincushion correction is combined with the square root function control, the summer 48a produces a signal -K 2 (X<SP>2</SP> + Y<SP>2</SP>) which is multiplied by a function of the square root of the E.H.T. voltage in multiplier 78 the output of the latter then being subtracted from the actual E.T.H. voltage in summer 82 to provide a voltage which is multiplied with the uncorrected X and Y voltages in respective multipliers 26, 28 to provide the required deflection voltages X, Y.
Patent GB-1493577-A (GB)
Title: Vehicle guidance
IPC: B62D1/26
Filed: 1973-11-27
Abstract: 1493577 Vehicle guidance systems HAWKER SIDDELEY DYNAMICS Ltd 27 Nov 1974 [27 Nov 1973] 54874/73 Headings B7H and B7L A vehicle guidance system comprises a vehicle 46, Figs. 1 and 2, and a track 48 having track junctions, the vehicle 46 having steerable support wheels 8 which are arranged to be automatically steered by mechanical steering means including guide wheels 2 engaging guide rails 1, the vehicle further having a selector 3 which is pivotally mounted to allow a selected one of switch wheels 3a provided thereon to engage an associated switch rail 4 or 5 to enable track selection at track junctions. As illustrated, the mechanical steering means includes a yoke 6 slidably mounted on a cross-shaft 13 and operably linked by a lever 7 to a pivoted track rod 47. The vehicle may comprise non-steerable support wheels in addition to the steerable support wheels. In a modification of the illustrated system, the selectors 3 may be positioned below the running surface of the track 48 and have switch wheels engageable with outer surfaces of the guide rails 1. In such a system, separate switch rails 4, 5 are not provided. Electrical power collection.-The vehicle 46 may be provided with a three-phase electrical collection arrangement comprising collector shoes 27, 30, 33, 36, 39, 42, Fig. 4, engageable with conductor rails 28, 31, 34, 37, 40, 43 mounted below the slot 53, Fig. 1, formed between the guide rails 1.
Patent GB-1494508-A (GB)
Title: Plasma display control apparatus
IPC: G09G3/28
Filed: 1975-12-16
Abstract: 1494508 Matrix displays M J MILLER 16 Dec 1975 [20 Dec 1974] 55266/74 Headings G4H and G5C Control apparatus for a multicell plasma display device comprises an input store for storing addresses of cells to be illuminated and associated intensity codes, a tone control circuit for deriving category code signals from the least significant bits of address co-ordinate signals of each address and comparing the numerical value of the category code signals with the numerical value of the associated intensity code and producing a binary output signal dependent on their relative magnitude, and means responsive to the binary output signal for initiating the illumination of the addressed cell or not according to the value of the binary output signal. This signal is a yes/no signal. The category code signals are derived using connections and (in one embodiment) logic.
Patent GB-1456220-A (GB)
Title: Laminar member for holding a film cassette or cartridge
IPC: B42F21/02
Filed: 1973-11-30
Abstract: 1456220 Labels; packaging on cards AGFA GEVAERT AG 30 Nov 1973 [7 Dec 1972] 55701/73 Headings B8F and B8C A label 1 has at least one aperture if formed with flexible projections lh, 1i for releasably holding a film, cartridge or cassette to be sent for processing and lines of weakness or perforations 1d enabling the card to be torn into separate portions 1a, 1b 1c each bearing the order number so that portion 1a can be sent off, portion 1b retained by the dealer and portion 1c retained by the customer. As shown, aperture 1f is shaped to receive a 35 mm. cartridge (2, Fig. 2a, not shown), apertures 1e and if are shaped to receive the supply and take-up chambers respectively of a 126 cassette (3, Fig. 3a, not shown) and apertures 1f and 1g are shaped to receive the supply and take-up chambers respectively of a 110 cassette (4, Fig. 4a, not shown).
Patent GB-1372870-A (GB)
Title: Process for treating single-cell protein food material
IPC: A23J3/20
Filed: 1971-12-01
Abstract: 1372870 Yeast &c. STANDARD OIL CO 1 Dec 1971 [3 Dec 1970] 55806/71 Heading C6F [Also in Division C3]  Single-cell protein material derived from unicellular micro-organisms is maintained, in the form of an ammoniacal aqueous slurry containing from 2-20 wt. per cent cells, at a temperature in the range of from 60 to 140C. and a pH within the range 8.0 to 11.0 such that the RNA content of the material is reduced (typically to below 2% by weight nucleic acids, dry basis) due to leakage of nucleic acid fragments from the cells, and the single-cell protein material of reduced RNA content is recovered as by  centrifuging, washing and drying. Part, at least, of the aqueous ammoniacal phase from the centrifuge containing the nucleic acid leakage products may be returned to the fermentation broth, if necessary after pasteurization. Heating of the ammoniacal slurry may be under autogenous pressure. An Example is directed to treating a suspension of cells of Candida utilis obtained by aerobic cultivation on ethanol substrate, with ammonia, and for comparison purposes with phosphoric acid or glucose.
Patent GB-1243544-A (GB)
Title: Improvements in or relating to cutting blowers
Inventor: ENGELBRECHT-SCHNUER ERNST-FRIE
IPC: A01F29/02
Filed: 1968-11-25
Abstract: 1,243,544. Centrifugal blowers. E.-F. ENGELBRECHT-SCHNUR and K.-H. LEMMERBROCK. Nov.25, 1968 [Nov.24, 1967], No.55889/68. Heading F1C. [Also in Division B2] In a blower having an impeller 2 arranged within an angularly-adjustable casing having an inlet 12 and a tangential outlet (not shown), the casing carries fixed cutting blades 14 which co-operate with a rotary cruciform cutting member 10. The blades 14 are connected to an annular rib 13, 13a which strengthens the casing end-wall. Similarly, the casing end-wall 8 is strengthened by an annular rib. An inlet sleeve 15 is secured, as by welding, to the rib 13, 13a, and an inlet stub 20 or elbow is secured to the sleeve 15 by an apertured tab 21 and co-operating pin 23 and by a hooked lever and staple mechanism 24, 25, 26. The casing is rotably supported via its end-wall 8 by a bearing housing 4 and legs 3, and via its sleeve 15 by an annular strap 17 and legs 16. The casing is clamped in its angularly adjusted position by tightening the strap 17 around the sleeve 15 by drawing the ends of the strap together via a mechanism similar to the mechanism 24, 25, 26. It is stated to be known for a blower to have an angularly adjustable casing with the end-wall opposite the inlet being externally convex and reinforced by a concave portion, and with the endwall containing the inlet being reinforced by a cast ring to which the fixed cutting blades are secured.
Patent GB-1247524-A (GB)
Title: Filter cartridges for gas masks
IPC: A62B23/00
Filed: 1968-11-26
Abstract: 1,247,524. Filter cartridges for gas masks. ETAT FRANCAIS. 26 Nov., 1968 [27 Nov., 1967], No. 56133/68. Heading B1T. A filter cartridge for a gas mask comprises a first section 1 having a filter element 10 for separating out solid particles and a second section 2 having an adsorbent filter element, the two sections being joined by a releasable locking ring 3 - which embraces flanges of the two sections 1 and 2 separated by a flange of a moulded plastics member 7 which peripherally seals the element 10. The latter may be of pleated paper, and the member 7 may be moulded around it and bonded to the housing of section 1. The element of section 2 may be activated carbon packed between synthetic paper sheets 8 supported by grids 5 held in grooves in the housing 2. The ring 3 can be removed by tearing, using a sardine-can-type key on a tap 4.
Patent GB-1350226-A (GB)
Title: Piezoelectric electro-acoustic transducers
IPC: H01G7/02
Filed: 1971-12-03
Abstract: 1350226 Piezoelectric transducers KUREHA KAGAKU KOGYO KK 3 Dec 1971 [4 Dec 1970] 56345/71 Heading H4J The piezoelectric properties of a diaphragm made of a polarized film of a polymer or copolymer of vinylidene fluoride are utilized in an electroacoustic transducer. The film is permanently prepolarized by subjection to a D.C. field having a potential gradient of 100 kv/cm. to 1500 kv/cm. at a temperature of 40C to 180C, after which it is cooled to room temperature preferably while maintaining the D.C. field. The opposite faces of the film have electrodes (e.g. of aluminium, silver or gold) applied by vacuum deposition and these electrodes serve both for the polarizing step and as transducer electrodes. The diaphragm is secured at its periphery and is of curved configuration in its neutral position. The diaphragm may be of circular, elliptical, polygonal, or other desired form. For example, it may be in the shape of the resonance box of a stringed musical instrument, or a cylinder peripherally fixed at its two ends or spherical and fixed at a lower portion thereof. The diaphragm may be of a non-oriented or oriented polymer or copolymer. The film may, for example, be stretched in one direction by a factor of 2À3 at 25 C. or by a factor of 4 at 110 C. Suggested materials are polyvinylidene fluoride or a copolymer of vinylidene fluoride and tetrafluoroethylene in a ratio of 80 to 20. The transducer may be a microphone, speaker earphone or headphone. In one example (Fig. 3) a headphone comprises an electroded diaphragm 1 of polarized polyvinylidene fluoride film peripherally held by elastic or rigid supports 3, 3<SP>1</SP>. This assembly is supported by rings 4, 4<SP>1</SP> and has protective plates 5, 5<SP>1</SP> one of which is apertured. A transformer or the output valve of an amplifier may provide the input signal. Such headphone may also be used as a microphone. Testing.-The headphone 10 (Fig. 4) is tested by coupling it to a condenser microphone 12 using a P.V.C. tube 11. A sound absorber 13 is made of glass fibre felt. The output from a white noise generator 7 is measured by a potentiometer 8 and the output from the condenser microphone 13 is measured by another potentiometer 9.
Patent GB-1190499-A (GB)
Title: Improvements in and relating to Securing Small Electric Motors in Toys and Models.
IPC: A63H19/10
Filed: 1968-11-27
Abstract: 1,190,499. Electrical toy drive arrangement. W. RICHTER and E. RICHTER [trading as ERNST PAUL LEHMANN PATENTWERK], 27 Nov., 1968 [26 June, 1968], No. 56361/68. Heading A6S. A toy vehicle, particularly a toy locomotive, has an electric driving motor 8 and gearwheels 4, 5, 5', 6, 7, 39 and 39' which are assembled on a mounting block 2 supporting the motor 8 and forming a self contained housing 3 for the gear wheels and having a detachable side wall 14 integral with a detachable end Wall 17, the block 2 being insertable into the vehicle chassis 1. The gear housing 3 is enclosed top and bottom and one side and one end by walls of the box shaped container 12, and by a detachable side panel 14 integral with a detachable end panel 17. Panel 14 is secured with screws and panel 17 by a tab 19, insertable into a recess 20 of the wall 12 (see fig. 5). The circular collared end 29 of the motor 8 is inserted in a circular opening 30 in the detachable end wall 17 and meshes with gear wheel 7 which drives the wheels via gears 4, 5, 5', 6, 39 and 39'. Gears 4, 5 and 5' are mounted loosely on axles having one end fixed to wall 11, and the other insertable into holes in detachable wall 14, whereas gears 6 and 7 are fixed to their axles, which run in holes in walls 11 and 14. The other collared end 32 of the motor 8 is fixed by a retaining plate 33 attached by two screws (not shown), and the motor body rests in recess 27 of the block 2. The plate 33 carries soldering tabs and contacts to supply current to the motor from the pick ups. The motor is provided with an overload cutout to prevent damage, and the gear wheels are prevented from rubbing the sides 11 and 14 off the housing 3, by means of bosses such as 40 (fig. 5) and 41 (fig. 4).