baber/WOPTO huggingface dataset:
Patent GB-1337268-A (GB)
Title: Lithographic imaging system
IPC: G03G13/28
Filed: 1970-11-20
Abstract: 1337268 Preparing lithographic printing masters XEROX CORP 20 Nov 1970 [24 Nov 1969] 55304/70 Heading G2H A lithographic printing master is obtained by a process in which the image areas are formed by the photo-electrophoretic imaging process. The pigment particles of the imaging suspension are hydrophilic or hydrophobic and may comprise binders such as paraffin wax, polyethylene, polyethylene terephthalate, polybutyl methacrylate, polyvinyl acetate, PVC, polyvinylidene chloride, styrene/butylmethacrylate copolymer, polystyrene, styrene/butadiene copolymer, polyvinyl alcohol, polyvinyl pyrrolidone, styrene/maleic anhydride copolymer, casein and phthalic anhydride modified alkyd resin. The image is formed on an electrode, a sheet placed between the electrodes or transferred to a surface, which has or may be converted to a surface having appropriate properties for the imaged surface to be used as a lithographic master. The surface may be of gelatine-coated polyethylene terephthalate, polyethylene terephthalate, polyvinyl fluoride, Al, Zn and paper coated with Al 2  O 3 , gelatine or polyvinyl alcohol, cellulose acetate, polyurethane, baryta paper and polytetrafluorethylene.
Patent GB-1247523-A (GB)
Title: Method of forming a powder image on a metallic material
IPC: G03G15/34
Filed: 1968-11-22
Abstract: 1,247,523. Method of forming a powder image on a metallic material. RANK XEROX Ltd. (Fuji- Xerox Co Ltd.). Nov.22, 1968, No.55544/68. Heading G2H. A method of forming a powder image comprises forming a layer of electrostatically charged powder containing a photo-conductive substance on a substrate, exposing said layer of powder to a light and shadow image thereby reducing the charge in exposed areas of said layer of powder, and selectively removing said powder from areas of said layer of powder having a reduced charge, characterized in that said layer of powder is formed on a film overlying a metallic layer and having an electric resistance of less than 10<SP>10</SP> ohm per square cm of the surface of the film spaced apart from said metallic layer in the direction of the thickness of the film or on a film such that the electric resistance between said surface and said metallic layer is at no point more than 10<SP>10</SP> ohm. The film may be a corrosion-preventive coating having either an electric reistance of less than 10<SP>10</SP>ohm per cm<SP>2</SP> of surface in the direction of thickness, or an electric resistance greater than 10<SP>10</SP> ohm per cm<SP>2</SP> of surface in the direction of thickness in which case an overcoating permeating into imperfections in said coating is applied whereby the surface electric resistance between said surface and said metallic layer is at no point more than 10<SP>10</SP> ohm. The present invention may be used to mark cutting lines on metal sheets. The powder may comprise transparent particles whose surfaces are coated with a film comprising photo-conductive material which may be zinc oxide. The zinc oxide is preferably dispersed in a binder of silicone resin, alkyd resin or an epoxy resin varnish. The transparent particles preferably have diameters in the range of 20 to 100 microns. U. K. patent Specification 990, 538 is referred to.
Patent GB-1269469-A (GB)
Title: A variable amplitude vibrator, for example for the manufacture of moulded concrete products
IPC: B28B1/087
Filed: 1970-11-23
Abstract: 1,269,469. Vibrating containers. VIBRATECHNIQUES S.A. 23 Nov., 1970 [24 Nov., 1969], No. 55641/70. Heading B1C. A shaking table, e.g. for moulds containing concrete comprises an annular chamber 6 having a flexible closure diaphragm 7 to which is attached a support 13; the volume of liquid in the chamber 6 is cyclically varied by the piston and crank device 14, 16, 17, the amplitude of the vibrations of the support 13 being independent of the load thereon. The chamber 6 connects through a restriction 23 with a gas pressurised chamber 24; after the load is placed on the support the pressure in chamber 24 is adjusted by means of valve 27 to return the diaphragm 7 to its unflexed position. The amplitude of vibration can be varied by adjusting the restriction 23 and different amplitude ranges may be obtained by altering the crank throw.
Patent GB-1466474-A (GB)
Title: Process of preparing sodium carbonate peroxide
IPC: C01B15/10
Filed: 1974-12-24
Abstract: 1466474 Sodium percarbonate FMC CORP 24 Dec 1974 55677/74 Heading C1A Aqueous solutions of H 2 O 2  (cone. of 17- 50 gl<SP>-1</SP>) and Na 2 CO 3  (150-250 gl<SP>-1</SP>) are reached continuously at a pH of 11À2 to 11À7, temperature of 25‹-34‹ C., and residence time of 2-8 hrs. in the presence of 10-70 p.p.m. Mg as magnesium silicate and 0À005-0À5 gl<SP>-1</SP> of sodium silicate, the crystalline slurry of sodium percarbonate is removed from the crystallization zone, filtered and dried; the mother liquor is returned to the crystallizer and excess water is evaporated from the system while continuously introducing fresh Na 2 CO 3  and H 2 O 2  solutions. In an example, a hydrogen peroxide efficiency of 80-85% was obtained at 300‹ C. and the crystals were larger (20% of +50 mesh, 70% of +100 mesh).
Patent GB-1216095-A (GB)
Title: Photographic material
Inventor: BORDEN DOUGLAS GRAHAM
IPC: G03F7/28
Filed: 1967-12-14
Abstract: 1,216,095. Photographic materials and processes. EASTMAN KODAK CO. Dec. 8, 1967 [Dec.14, 1966], No.55885/67. Heading G2C. A photographic material comprising a support carrying a layer containing a single isomer which undergoes a lowering of melting or tackifying point on exposure to light of a compound of formula: - wherein Cl is -CH=CH-, -NR, oxygen or sulphur, R and R<SP>1</SP> are hydrogen or alkyl with up to 8 carbon atoms, R<SP>11</SP> is cyano, aryl, benzoyl, chlorocarbonyl, azidocarbonyl or carboalkoxy or a heterocyclic group containing at least one N, S or O atom, R<SP>111</SP> is hydrogen, cyano or alkyl having up to 8 carbon atoms, m is 1 or 2, n is 0-2, E is hydrogen, nitro, alkyl with up to 8 R R<SP>11</SP> carbon atoms or -(CH=CH) n -#C=#C-R<SP>111</SP> and when m is 2, E is a single bond. In the example, a support is coated with trans-2-or4-stil-bazole, trans-p'-ethyl chalcone, trans-2-styryl-furan or trans-2-styryl-thiophene optionally in a polymeric binder and optionally with a thiapyrilium sensitizer and is imagewise exposed to light to form the low melting point cis-isomer in the exposed areas. The image may be developed by (i) heating the layer in contact with a receptor sheet and transferring the exposed areas, (ii) adding a light-sensitive colour reactant combination to the layer so a coloured image is given on exposure, (iii) heating the exposed material and brushing with a coloured powder which adheres in the exposed areas (iv) immersing in a dye  solution which dyes the exposed areas and using as a spirit duplicating master or (v) immersing in silver nitrate solution which on further exposure gives a positive silver image. The amount of material transferred may be controlled by laminating the light-sensitive layer to a rayon mesh. Alternatively the light-sensitive layer may be overcoated with polyvinyl alcohol, gelatine or alumina.
Patent GB-1193479-A (GB)
Title: Improvements in or relating to Indirectly-Heated Thermistors
IPC: H01C7/04
Filed: 1967-12-08
Abstract: 1,193,479. Thermistors. FUJITSU Ltd. 8 Dec., 1967 [9 Dec., 1966], No. 56048/67. Heading H1K. An indirectly heated thermistor comprises a thermistor element 1 constituted by a single crystal semi-conductor, a heater 4 for heating the element, and an insulating film 3 between the heater and the element. In a preferred embodiment the crystal 1 consists of germanium containing less than 10<SP>14</SP> atoms/c.c. of an impurity such as antimony and having goldantimony electrodes 2, the insulating film 3 consists of silicon monoxide, and the heater 4 consists of a deposited layer of nickel-chromium alloy having gold-chromium electrodes 5. The heater is protected by a further silicon monoxide film 6. The thermistor may be mounted by means of glass supports on a header and hermetically sealed in an enclosure.
Patent GB-1450446-A (GB)
Title: Fire retardant fabrics and method for preparation thereof
IPC: D06M15/432
Filed: 1973-12-05
Abstract: 1450446 Textile - treating compositions UNITED MERCHANTS & MFRS Inc 5 Dec 1973 [13 Dec 1972] 56450/73 Heading C3R [Also in Divisions D1-D2] A composition for rendering cellulosic fabrics fire-retardant, comprises an aqueous solution or emulsion containing an aminoplast resin, an acid having a first hydrogen acid dissociation constant in the range from 1 Î 10<SP>-1</SP> to 5 Î 10<SP>-5</SP>, and a dialkyl phosphono-methylol alkylamide having the Formula I wherein R is alkyl (1-6C) and X is an integer from 1 to 3. The aminoplast resin may be in the water-soluble or colloidal state and is preferably a methylated trimethylol melamine. The acid is preferably phosphoric acid, but may be formic, acetic, chloracetic, cyanoacetic, oxalic, malonic, tartaric, phthalic, or benzenesulphonic acid. The solution may further contain 1-3% by weight of urea, ethylene urea, propylene urea, guanidine, dicyandiamide, oxamide, thiourea or polyethylene imine. The polymerization of the resin on a cellulosic fabric may be carried out under steam and/or under pressure. Curing may be effected at elevated temperatures from 300-400‹ F. for 2 to 20 minutes, after air drying the fabric at temperatures in the range of 240-290‹ F. The cured fabric may be subjected to a peroxidation step, e.g. using alkaline perborate, optionally preceded by an alkaline aqueous wash. The fabric is then rinsed and dried. The fabrics treated may comprise fibres of cotton, regenerated cellulose, jute, manila, hemp, sisal and ramie, and blends with synthetic fibres, e.g. cotton/polyester (87/13).  Reference has been directed by the Comptroller to Specification 1,011,572.
Patent GB-1418645-A (GB)
Title: Pipe connection with clamping ring
IPC: F16L47/10
Filed: 1972-12-07
Abstract: 1418645 Pipe couplings INDUSTRIELE ONDERNEMING WAVIN NV 7 Dec 1972 [14 Dec 1971] 56470/72 Headings F2B and F2G In order to absorb the shock of an accidental end impact, with out damaging a seal retaining ring 4, axial play 30, 34 is provided in interengagement of 8 and 9 and contact between a gripped part 17, of a resilient seal, and end 7 is made more resilient, by forming part 17'with a rib or ribs 15, 16. The seal is stiffened so as to flex beyond its gripped part by terminating this part 17 with a bulbous portion 31. The interconnected pipes 1<SP>1</SP>, (21) are of p.v.c. and the retaining ring 4 may be of polythene or polypropylene.
Patent GB-1444729-A (GB)
Title: Coaxial electrical connector
IPC: H01R24/38
Filed: 1973-12-06
Abstract: 1444729 Coaxial connector BUNKER RAMO CORP 6 Dec 1973 [29 Jan 1973] 56545/73 Heading H2E The rear end of the outer contact 18 of a coaxial connector has moulded to it in interlocking engagement, preferably at a reduced diameter portion 20, a one piece dielectric body 16 through which extends a connecting lead 24 to the outer contact, and having a forward nose part 30 surrounded by an annular gap and flanged at 34 to provide insulating mounting in a panel 26. The body may be flattened at 44 to co-operate with a suitably shaped hole to prevent rotation of the body. The lead 24 may be spot welded to, or formed integrally with the contact 18 and may be attached to the inner surface of the rear of the contact which may project rearwardly of the flange 34. The interlocking arrangement may be a peripheral groove 22 on the contact. The inner contact 14 may have a knurled surface 28 to interlock with the dielectric body.
Patent GB-1191270-A (GB)
Title: Processes for the Production of Phenyl Esters
Inventor: ISMAIL ROSHDY
IPC: A01N37/00
Filed: 1967-12-15
Abstract: 1,191,270. Pesticides containing phenyl esters of carboxylic acids. DYNAMIT NOBEL A.G. 15 Dec., 1967 [17 Dec., 1966; 31 Dec., 1966 (2), 19 Aug., 1967], No. 57217/67. Heading A5E. [Also in Division C2] Fungicidal, phytotoxic and bactericidal compositions comprise as active ingredient a phenyl ester produced by reacting a halogenated monohydric phenol with an acid chloride of a mono- or polycarboxylic acid or a halogenated polyhydric phenol with an acid chloride of a monocarboxylic acid in the presence of a catalytic quantity of an acid amide and/or a tertiary amine of which the amino group is or is not a constituent of an aromatic ring, at a reaction temperature of from 50 to 250‹C., in combination with a carrier or diluent. Many esters are specified.
Patent GB-1367146-A (GB)
Title: Pyrimido-isoquinoline derivatives
IPC: C09B43/00
Filed: 1971-12-13
Abstract: 1367146 Pyrimido-[2,1-a]isoquinolin-4-one derivatives MAY & BAKER Ltd 10 Nov 1972 [13 Dec 1971] 57855/71 Heading C2C [Also in Division A5] The invention comprises compounds of Formulµ I and II and the pharmaceutically acceptable salts of I, wherein R<SP>1</SP> (which is in the 1-, 2-, 3-, 4- or 5- position of I, or the 7-, 8-, 9-, 10- or 11-position of II) is H, C 1-10  alkyl or alkoxy, or benzyl; and a process for preparing I by reacting II with a source of HNO 2 . II are prepared by reducing the analogous 2-amino-3-nitro- and 2-amino-3-phenylazo-derivatives of pyrimido-[2,1-a]isoquinolin-4- one. Intermediates otherwise prepared are 1-aminoisoquinoline substituted by 4-benzyl, 6-Me or 7-MeO; 2-amino- and 2-chloro-pyrimido-(2,1-a]- isoquinoline-4-ones (possibly 10-MeO-substituted); and 10-methoxypyrimido-[2,1-a]-isoquinoline-2,4-dione.
Patent GB-1206179-A (GB)
Title: New water-insoluble azo dyestuffs and processes for their manufacture
Inventor: PETER RICHARD DR
IPC: C09B29/033
Filed: 1967-12-20
Abstract: 1,206,179. Water-insoluble azo dyestuffs. CIBA Ltd. 20 Dec., 1967 [27 Dec., 1966], No. 57902/67. Heading C4P. The invention comprises water-insoluble monoazo dyestuffs of the formula wherein A is the residue of a diazo component, B is an optionally substituted p-phenylene radical, R 1  is alkyl which may be substituted by groups but not by benzoyloxy groups, and R 2  is -alkylene-O-COR 3 , wherein R 3  is a phenalkyl group, a styryl group, a five-membered heterocyclic residue or a nitrogen free sixmembered heterocyclic residue or R is a benzene residue free from hydroxyl or carbalkoxy groups when R 1  is alkyl substituted by groups other than -CN, or R 3  is a benzene residue substituted by groups other than OH, carbalkoxy, alkyl or alkoxy groups when R 1  is a cyanoalkyl group. Preferably, A is an optionally substituted pnitrophenyl group. They are prepared by diazotization and coupling. The dyes dye aromatic polyesters, polyamides and cellulose triacetate in yellow-orange, orange, red, navy blue, scarlet, violet, orange-red and ruby shades.
Patent GB-1369833-A (GB)
Title: Charged particle energy analysis
IPC: H01J49/48
Filed: 1971-12-17
Abstract: 1369833 Electron spectrometers E I DU PONT DE NEMOURS & CO 17 Dec 1971 [18 Dec 1970] 58694/71 Heading H1D Apparatus for the energy analysis of charged particles, e.g. electrons, comprises a tubular metal flow director 34 which the particles enter, a first electrostatic filter consisting of rings 40 to 46 which maintain a decelerating field so as to prevent the passage of particles below a selected energy level and a second electrostatic filter which radially ejects particles having energies within a selected range into a shroud 60 where they are counted by electron multipliers 64. A filter 26 at the entrance of the apparatus allows only those particles below a preset energy to enter the apparatus. Those particles which are required pass through window 19a, are reflected by screen 20 and enter the apparatus through window 19b. A concentrating lens 35 may be provided.
Patent GB-1205578-A (GB)
Title: Acid dye resistive polyamide
Inventor: FLAMAND CHARLES DAVID
IPC: C08G69/42
Filed: 1967-12-28
Abstract: 1,205,578. Acid dye resistive polyamides. MONSANTO CO. 28 Dec., 1967, No. 58803/67. Heading C3R. A linear, fibre-forming polycarbonamide contains as terminal groups on the polymer chain, in sufficient amount to impart acid dye-resistance to a fibre formed from the polycarbonamide, disulphonated units of the structure where n is 0 to 8, M is an alkali metal and Z is > C = O or > N-R, where R is hydrogen or an alkyl group containing 1 to 6 carbon atoms, with the proviso that when Z is > N-R, n is at least 1. Preferably the disulphonated units are present in an amount from about 0.1 to 2 mole per cent based on the total moles of amide linkages in the polyamide. The modified polycarbonamide is prepared by interpolymerizing where Z-Y represents an amide forming group, with conventional dicarboxylic acids/diamines, monoaminocarboxylic acids, lactams, and derivatives thereof, (many of which are specified). Many disulphonated compounds are specified, e.g. disulphobenzoic acid bis-(alkali metal) salts, disulphophenyl alkanoic acid bis- (alkali metal) salts, desulphophenylalkylamine bis-(alkali metal) salts, disulphobenzoic acid halide bis-(alkali metal) salts, disulphophenylalkanoic acid halide bis-(alkali metal) salts, disulphobenzoic acid ester bis-(alkali metal), disulphophenylalkanoic acid ester bis-(alkali metal) salts, (the esters being derived from alcohols volatile at temperatures below the decomposition temperature of the polycarbonamide).
Patent GB-1155890-A (GB)
Title: High reactivity epoxy resin
Inventor: BREMMER BART J
IPC: C08G59/06
Filed: 1967-12-28
Abstract: 1,155,890. Glass-cloth laminates. DOW CHEMICAL CO. 28 Dec., 1967, No. 58904/67. Heading B5N. [Also in Division C3] Glass cloth used in the preparation of laminates is impregnated to form a prepreg with an epoxy resin composition comprising: (A) a dihydric phenol, e.g. bisphenol A or tetrabromobisphenol A; (B) a diglycidyl ether of a dihydric phenol, e.g. bisphenol A; and (c) from 0À1 to 5 parts by wt. per 100 parts of resin or an epoxidized novolae of formula: in which n varies from 0À1 to 5. The composition may be hardened, via a B-stage using conventional hardeners and catalysts. In examples an epoxy resin containing the diglycidyl ether of bisphenol A and varying quantities of an epoxidized novolae and tetrabromobisphenol A is dissolved in a mixture of dimethylformamide, ethylene glycol methyl ether and acetone and cured with dieyandiamide catalysed by benzyldimethylamine. Glass cloth was impregnated from a resin solution and heated for 6 minutes in an oven at 150-155‹ C to remove solvent and obtain a B-stage cure. Laminates were prepared from 6 sheets which were pressed at 175‹ C. for 2 minutes at 20 1b./in.<SP>2</SP> and finally for 8 minutes at 500 1b./in.<SP>2</SP>.
Patent GB-1260139-A (GB)
Title: Play devices
Inventor: WILLIAMS GERALD GEORGE
IPC: A47D13/06
Filed: 1968-12-18
Abstract: 1,260,139. Trampolines. G. G. WILLIAMS. 16 July, 1969 [27 July, 1968; 18 Dec., 1968], Nos. 35966/68 and 60175/68. Heading A6M. [Also in Division A4] A play device comprises end members 12, 13 hinged to side frames 10, 11 to form a play pen, collapsable by folding the end members about hinges 23 or by moving the frame 10, 11 in opposite directions lengthwise, which can be used as a support for a table or trampoline and in which at least the pivot pins connecting the end member 13 are removable for replacement of the member 13 by an end member 14 formed as a moulding of resin bonded glass fibre which is rigidly secured to the end of the frames 10, 11 by clamping pieces 27 to form a climbing frame or a support for a swing. The end members 12, 13 and side frames comprise rails 16, 17, 21, 22 connected by dowels 15, 20, two dowels 15 being engaged by the clamping pieces 27 which are secured by wing nuts and bolts 28. A flat board 30, foldable centrally and usable as a table top or floor of the play pen, has planks 32 secured to it to locate the dowels of the end member 12, steel channel-section struts 34 are bolted at 35 and hinged at 36 to the rails 16, 17 to rigidify the structure so as to support a swing chair or harness. A sub-frame securable to the side frames supports a rocking horse, see-saw or slide. Balls 18 rotatable on an intermediate rail 18 prevent a child from climbing out of the pen. A flexible cover can be placed over the whole structure as shown in Fig. 2 to form a tent, and for outdoor use, the struts 34 have ground-penetrating feet.
Patent GB-1371776-A (GB)
Title: Antiskid control system for a vehicle
Inventor: RODI A
IPC: B60T8/66
Filed: 1971-12-29
Abstract: 1371776 Anti-skid vehicle braking systems TELDIX GmbH 29 Dec 1971 [28 Dec 1970] 60533/71 Heading F2F An anti-skid vehicle braking system includes a wheel speed sensor 1 which delivers a wheel speed signal to a comparator 2 which also receives one or other of two electrical reference signals, an upper and a lower reference signal, representative of percentages of the vehicle speed as it varies with time during braking the comparator supplying a signal to reduce pressure in the braking system if the wheel speed signal is smaller than the reference signal; the reference signals are respectively supplied from generators 3 and 4 to a switching device 5 which normally supplies one reference signal to the comparator 2 but is actuable to supply the other signal in response to electrical signals. In the embodiment of Fig. 1, the upper and lower reference signals are about 95% and about 80% respectively of the smoothed speed of at least one other vehicle wheel affected by controlled braking. The switching device S normally supplies the upper reference signal to the comparator 2 but upon receipt of switching pulses from a pulse generator 6 the switching device 5 switches between the reference signals. The dimensioning of the pulses depends on the mean speed of the braking pressure drop and rise, and is such that braking pressure remains constant at an average. The comparison signal from comparator 2 operates a three-way valve 7 to control the braking pressure. In the embodiment of Fig. 2 (not shown) a timing element 8 produces switching signals for the device 5 and is connected to the output of the comparator 2. The reference signals are produced from the wheel speeds of independently controlled freely rolling wheels. In the embodiment of Fig. 3 the lower reference signal is normally supplied to the comparator 2 via the switching device 5<SP>1</SP>. The arrangement also incorporates a wheel acceleration and deceleration sensor 9 which comprises one or more rotational weights which are spring biased to operate contacts, or may comprise an electronic circuit operable to differentiate wheel speed signals: the sensor 9 can deliver three signals: a deceleration signal -b, an acceleration signal + b 1  and a higher acceleration signal +b 2 . The signals -b and +b 1  are operable to cause switching of the device 5<SP>1</SP> to the upper reference signal, and also affect the pressure control which consists of a normally open inlet valve 10 and a normally closed outlet valve 11. The signals are employed in a circuit comprising OR gates 12, 13, 17, NAND gates 14, 16, 21 and AND gate 15; and the circuit also includes a pulse generator 20 and timing members 18, 19. The timing member 19 is connected to a timing member 22 of the pulse generator 20 by a connection 23. In this arrangement the speed of the braked wheel is used for forming the reference signals. The system may also utilize a third reference signal corresponding to 97% of the notional vehicle speed.