baber/WOPTO huggingface dataset:
Patent GB-1485510-A (GB)
Title: Lamps
IPC: H01K3/26
Filed: 1974-11-28
Abstract: 1485510 Electric incandescent lamps; discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 28 Nov 1974 [31 Aug 1973] 51636/74 Headings H1F and H1D An electric lamp, e.g. a tungsten-halogen incandescent lamp or a gas, metal vapour or metal halide discharge lamp, comprises an envelope 11 having a seal 12 through which the supply leads 13 pass, and a metal lamp cap 18 having an outwardly extending flange 21 and a sheet metal support, for example the parts 22, 26 of the lid 20 of the lamp cap, which mechanically. supports the envelope 11 on the lamp cap 18, the supply leads 13 passing through insulating hermetic seals 32 formed in openings in the lamp cap 18. As shown, the annular flange 21, by which the lamp may be permanently mounted in a sealed beam unit or removably mounted in a slide or cine projector, is integrally formed with the annular lamp cap lid 20 which is secured to the lamp cap 18 by solder fillet 27 and to the capping box 14 around the pinch seal 12 by solder fillet 24. Alternatively, Fig. 2 (not shown), the flange 21 is separate from the lid 20, or, Fig. 3 (not shown), the flange 21 is formed integrally with the lamp cap base, the envelope being supported by circumferentially spaced legs secured to the capping box and to the inside of the lamp cap. In manufacturing the electric lamp, after appropriately jigging the components beads of vitreous or plastics sealing material 32 are placed over the leads 13 and the jigged parts passed through a heated oven having an inert atmosphere.
Patent GB-1476840-A (GB)
Title: Rust-removing cleaning agents and their manufacture and uses
IPC: C23G1/04
Filed: 1975-12-19
Abstract: A rust-dissolving acidic cleaning agent based on phosphoric acid and/or acidic phosphoric acid esters contains an alkali metal disilicate, at least one polybasic carboxylic acid and/or at least one phosphonocarboxylic acid. Furthermore, a cationic corrosion inhibitor and a high-molecular polyglycol ether are to be added. To prepare the cleaning agent, the polybasic carboxylic acid and/or the phosphonocarboxylic acid is introduced with stirring into an aqueous solution of the alkali metal disilicate, and the remaining components are then added. The cleaning agent has not only a rust-dissolving action, but also a corrosion-inhibiting action if the derusted surface is cleaned therewith and then dried.
Patent GB-1062620-A (GB)
Title: Improvements in joint links for chains
IPC: F16G15/02
Filed: 1964-12-22
Abstract: 1,062,620. Chain couplings. H. O. SPILHAUG. Dec. 22, 1964 [Dec. 30, 1963], No. 52105/64. Heading F2Q. In a chain joint link comprising two curved sections 1, 2 having opposing limb ends 3, 4 and 5, 6 screw threaded and connected by nuts 7, 8, the screw threads of the opposing ends are of the same helix hand and to ensure equal length screw thread engagement between the nuts and the limb ends the sections 1, 2 have mutually different curve radii. The threaded end 6 runs into a portion 9 of thread root diameter, the combined length of the end 6 and the portion 9  being at least the length of the corresponding  nut 8. To assemble, firstly, the nut 7 is screwed on to the end 4 for half its length, and the nut 8 is screwed over the end 6 for its entire length; secondly, the end 3 is then screwed into the nut 7 until it abuts the end 4; thirdly, the section 2 is turned to bring the ends 5, 6 into alignment, and finally, the nut 8 is screwed on to the end 5 so that the nut equally engages the ends 5, 6. To reduce stress at internal points where the unscrewed and screwed portions of the large section 2 meet, curved recesses are formed adjacent these points (Fig. 4, not shown) to outwardly displace the neutral stress line.
Patent GB-1481630-A (GB)
Title: Variable frequency oscillators
IPC: H03B5/36
Filed: 1974-12-04
Abstract: 1481630 Crystal oscillators SONY CORP 4 Dec 1974 [5 Dec 1973] 52463/74 Heading H3T A variable frequency oscillator 20 with frequency stabilized against temperature variations for use, e.g. in an FM modulator circuit in a radio microphone, comprises a lithium tantalate vibrator 21 connected to an active element Q, a variable inductance 24 in series with the vibrator, a first capacitor, which may be a variable capacitance diode 22, the capacitance of which varies linearly with ambient temperature (15), Fig. 5 (not shown), connected in series with the vibrator, and a second capacitor 32 or 33 the capacitance of which has a downwardly convex square law variation with temperature (16), Fig. 6 (not shown), and also connected in series with the vibrator. The capacitance of diode 22 is changed linearly with temperature by means of a semi-conductor element 26a, the resistance of which varies with temperature, used with a resistor 26b to provide a bias voltage to the diode 22 at point 28. The effect of temperature on the oscillator frequency taking into account the temperature effect on 22 but not that on 32 is a set of downwardly convex curves (16a-16c, Fig. 7 (not shown). If the temperature effect on 32 or 33, which may be ceramic capacitors, is included the frequency variation with temperature is small, either convex or concave (17a-17c), Fig. 8 (not shown). Both capacitors 32 and 33 may have a downwardly convex square law temperature dependence. A signal may be supplied at an input 11 to frequency modulate the oscillator by varying the capacitance of diode 22.
Patent GB-1326908-A (GB)
Title: Stabilising lactones
IPC: C07D313/04
Filed: 1970-11-05
Abstract: 1326908 Stabilizing lactones DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 5 Nov 1970 [12 Nov 1969] 52657/70 Heading C2C Lactones, e.g. #-caprolactone are stabilized by treatment (e.g. at 0-250‹ C. and 0À1 torr to normal pressure) with oxygen and/or one or more oxidizing agents and/or one or more acids that are less volatile to the lactone and distilled. After distillation the lactone may have 0À01- 1% by weight (based on the lactone) of one or more oxygen donors added thereto. The amount of added oxidizing agent and/or acid before distillation is preferably 0À01-3% by weight.
Patent GB-1454895-A (GB)
Title: Scouring powders
IPC: C11D1/34
Filed: 1972-11-15
Abstract: 1454895 Abrasive compositions UNILEVER Ltd 13 Nov 1973 [15 Nov 1972] 52737/72 Headings C4V and C5D A liquid, paste or powdered scouring composition comprises (a) a particulate abrasive of Moh's hardness 3-7, (b) an organic phosphoric or phosphonic acid monoester polishing agent having the formula wherein n is the actual number of ethylene oxide units and is 0-5, m is 1, or 0 if n is 0, R 1  and R 2  are hydrocarbon chains wherein R 1  is -(CH 2 ) x CH 3  or -(CH 2 ) x C 6 H 5 , R 2  is or -(CH 2 ) y C 6 H 5  or H and R 3  is one of or in which x, y or z are integers which may 0 and x+y+z is from 4 to 17 when alkyl hydrocarbon organic groups are employed in R 1 , R 2  or R 3  and from 4 to 14 when aryl or hydroxyalkyl groups are employed in R 3 , or when a mixture of alkyl and hydroxyalkyl or aryl groups are employed in R 1 , R 2  or R 3  and (c) an inorganic salt is defined present such that a 10% w./v. slurry of the composition in water as a pH within the range 5-11. Suitable abrasives are calcite, silica, felspar, apetite, pumice or dolomite. Preferred polishing agents are phosphoric acid monoesters of octanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol and of the di-, tri- and tetraglycol ethers of C 12 -C 8  alcohols, either singly or in mixtures. Particularly preferred is lauryl phosphate. The phosphates/phosphonates may be present in the acid form as mono- or dialkali metal, magnesium, ammonium or substituted ammonium salts, e.g. sodium carbonate, sodium silicate and sodium bicarbonate. Suitable inorganic salts and acid salts are alkali metal, magnesium, ammonium or substituted ammonium salts of inorganic halo- and oxyacids except the phosphorus-oxyacids. A surface active agent may be included and this may be anionic, nonionic, zwitterionic or a mixture of these, e.g. sodium dodecyl benzene sulphonate, sodium olefin sulphonate, octyl dodecyl ammonium chloride, nonyl phenol/ethylene oxide adduct. In a modification of the invention a liquid or paste scouring composition is claimed in which the particulate abrasive has a Moh's hardness of 7-9.
Patent GB-1458005-A (GB)
Title: Devices for tuning carburetters
IPC: G01B3/28
Filed: 1972-11-15
Abstract: 1458005 Carburetter jet gauge C R FOREMAN 13 Nov 1973 [15 Nov 1972] 52851/72 Heading G1M [Also in Division F1] A device for setting the position of a jet in a constant-depression type carburetter comprises an elongated two part handle 10 the ends 12 of which are splayed and are notched at 13 to fit over an annular rib 23 formed on the carburetter and a strip-like member 14, pivotally mounted in the handle at 15 and having a bifurcated end which straddles the needle 22 so that detector fingers 16 rest on the end-face of the jet 19. Scale 17 on the member 14 is read against edge 18 on the handle. Detector fingers 16 are pressed against jet 19 by spring 14A. The direction of the spring bias may be reversed, the scale may be on the handle. The handle may be located by needle-engaging members. A lock for member 14 may be provided, or a second pointer to indicate the position reached by member 14 in making a first adjustment.
Patent GB-1182907-A (GB)
Title: Injection Molding Machine.
IPC: B29C45/50
Filed: 1968-11-08
Abstract: 1,182,907. Injection moulding machines. CINCINNATI MILLING MACHINE CO. 8 Nov., 1968 [19 Feb., 1968], No. 53150/68. Heading B5A. An injection moulding machine having an axially reciprocable screw 54, comprises a driving cap 232 connecting the screw 54 with a drive shaft 210 for rotation therewith but permitting relative axial movement between the driving cap 232 and drive shaft 210, a piston 274 attached at one end to the driving cap 232 and surrounding a sleeve 180 which surrounds a substantial length of the driving cap, and a fluid pressure cylinder 86 surrounding the piston 274, the sleeve 180 being fixed relative to the cylinder whereby the screw 54 is axially displaceable relative to the drive shaft 210 and both axially and rotationally displaceable with the piston 274. Injection is effected by introducing fluid under pressure into the cylinder 86 through ports 140, 142 to move the piston 274 and screw 54 to the left in Fig. 2. The piston 274 is provided with external and internal sealing rings 299 and 308 sealing against the cylinder 86 and sleeve 180 respectively. Sealing rings 298 on the cylinder seal against the other end of the piston 274.
Patent GB-1443219-A (GB)
Title: Brominated latex
IPC: C08C19/14
Filed: 1973-11-16
Abstract: 1443219 Bromination of polymer latices ARCO POLYMERS Inc 16 Nov 1973 [6 Dec 1972] 53444/73 Heading C3P  Unsaturated polymers in latex form are brominated by adding thereto a bromine-in-water emulsion containing 15-30 wt. per cent bromine. The polymer may be a conjugated diene homopolymer or a diene/alkenyl aromatic copolymer optionally containing up to 10% of a further monomer. Examples describe the bromination of copolymers of butadiene with styrene and either acrylic acid or itaconic acid.
Patent GB-1160720-A (GB)
Title: Improvements in or relating to the Treatment of Chocolate Masses
Inventor: PILZ GERTRUD
IPC: A23G1/10
Filed: 1966-11-29
Abstract: 1,160,720. Mixing and aerating chocolate. G. PILZ [trading as MASCHINENFABRIK J. S. PETZHOLDT INHABER HERBERT PILZ]. 29 Nov., 1966 [8 Dec., 1965], No. 53476/66. Heading B1C. [Also in Division A2] An apparatus for treating (e.g. texturing, refining, mixing, demoisturing and aroma intensifying) chocolate comprises a double walled circular vessel 2 which can be heated or cooled, rotary members 3, 4 for mixing the chocolate mass and scraping the vessel walls. a centrally mounted open ended pipe 5, an impeller 8 and a centrifugal disc 9 mounted on shaft 7 driven by motor 11 and a blower 12 for introducing air via passage 15 into the vessel. Shaft 7 may be hollow and have radial bores below the disc 9 such that air may also be introduced into the dispersion through the shaft. In use, the bulk of the chocolate mass is continuously mixed and part is continuously urged by impeller 8 up pipe 5 onto centrifugal disc 9 and is sprayed in the form of a dispersion such that it encloses the bulk of the mass below. This dispersion, as it falls, is aerated by upwardly flowing air, which preferably has been oxygen enriched and filtered, introduced via passage 15 and the radial bores in shaft 7.
Patent GB-1136088-A (GB)
Title: An automatic electronic stabilizer for control of output current and voltage
Inventor: PIRET ENDRE
IPC: H02P7/26
Filed: 1965-12-17
Abstract: 1,136,088. Automatic control of current and voltage. ORION RADIO ES VILLAMOSSAGI VALLALAT. Dec. 17, 1965, No. 53591/65. Heading G3R. A voltage regulator comprises input terminals 1, 2, output terminals 6, 7 and a series valve 3 which is controlled to effect voltage stabilization up to a predetermined value of load current, whereafter the voltage control is superseded by a current control so that the load current is maintained at the said value. In the voltage control circuit, the output voltage is detected by a potentiometer 19 and compared with a reference voltage derived from tube 18 associated with an amplifier 17 the output from which is applied over a diode 16 to the control grid of the valve 3. The current control circuit includes a series resistor 13 providing a current-dependent signal which is applied, together with a reference voltage from a Zener diode 15, to a comparator transistor 12 the output from which is applied over a diode 14 to the control grid of the valve 3. The potentials in the circuit are such that diode 16 is conductive and diode 14 non-conductive when the load current is below the predetermined value, whereby the voltage control circuit is effective on valve 3 which then operates to maintain the output voltage constant; when the load current reaches the predetermined value, diode 14 conducts and diode 16 becomes non-conductive so that the valve 3 is then controlled, by the signal from transistor 12, in a manner to maintain the load current constant at the desired value.
Patent GB-1195810-A (GB)
Title: Porcelain-to-Porcelain Seals and Method of Producing Same
IPC: C23D13/00
Filed: 1968-11-13
Abstract: 1,195,810. Ceramic seals. SCM CORP. 13 Nov., 1968 [7 Dec., 1967], No. 53736/68. Heading B3V. [Also in Division C1] A method of joining bodies coated with porcelain comprises providing the bodies with porcelain coatings of reduced thickness in selected areas and joining these areas by an extraneous bonding agent. Iron or steel bodies may be precoated with Ni or Co to a thickness of a few atoms and then coated with a ceramic frit in an organic binder. The ceramic coating is then cured before its thickness is reduced in the selected areas, as by scraping, cutting or buffing. Firing follows to remove and/or destroy the organic binder and fuse the frit to form the porcelain coating. Suitable adhesives for bonding the bodies together and thermosetting or thermoplastic organic resins, e.g. the epoxy resins, thermosetting silicone resins and pressure sensitive thermoplastic polymers. The reduced thickness of the porcelain coating may be 0.25 to 3 mils, e.g. 1 or 1.5 mils.
Patent GB-1262692-A (GB)
Title: Acrylic and methacrylic acid esters, polymers thereof and the use of the polymers as agents for gel chromatography
IPC: B01J20/291
Filed: 1969-11-03
Abstract: 1,262,692. Polymers of alkanoyloxyalkyl (meth)acrylates; enzymes. MERCK PATENT G.m.b.H. 3 Nov., 1969 [21 Dec., 1968], No. 53788/69. Headings C3H and C3P. [Also in Division C2]  The invention comprises cross-linked polyacrylates or polymethacrylates of monomers of the formula wherein R is H or CH 3  and R<SP>1</SP> is a straight or branched chain C 2 -C 6  alkyl radical which may be interrupted by one or two O atoms and is substituted by 1 to 5 OH groups, some at least of which are protected by C 1 -C 4  alkanoyl radical. They may be obtained by polymerization of a monomer of the above formula in the presence of a cross-linking agent and the polymer obtained is thereafter, if desired, partially hydrolysed. Examples are given for the production of the polymers. They are useful as agents for gel chromatography. Enzymes are separated by chromatography of a buffered solution of a mixture thereof on a column of the acrylate polymer.
Patent GB-1380323-A (GB)
Title: Flame retardant compositions
IPC: C08K13/02
Filed: 1972-11-22
Abstract: 1380323 Organopolysiloxane compositions GENERAL ELECTRIC CO 22 Nov 1972 54038/72 Heading C3T A flame retardant organopolysiloxane composition comprises (a) 100 p.b.w. of an organopolysiloxane gum, the organo groups of which comprises 0-35 mole per cent of aryl or halogenated aryl radicals, 0-2 mole per cent of vinyl radicals, the remainder being methyl radicals, the R/Si ratio being from 1À98 to 2À05, (b) 10-300 p.b.w. of a finely divided non- alkaline inorganic filler, (c) platinum or a platinum-containing material in an amount of up to 250 p.p.m. calculated as Pt based on the weight of (a), and (d) up to 100 p.b.w. of a Group II metal oxide, preferably zinc oxide or magnesium oxide, components (c) and (d) being flame retardant agents. The preferred non- alkaline filler is a silica filler such as silica aerogel, fumed silica, ground quartz, and silica treated with organo-silicon materials. Up to <SP>2</SP>/ 3  of the silica filler can be replaced by carbon black, TiO 2 , diatomaceous earth or mixtures thereof. The filler may also be partially or wholly replaced by a non-alkaline Group II metal oxide. The Pt containing material may be Pt-on-charcoal, -silica gel, -gamma alumina or asbestos, chloroplatinic acid, (PtCl 2 .olefin) 2 , H(PtCl 3 .olefin), (PtCl 2 .C 3 H 6 ) 2  or a complex of chloroplatinic acid with up to 2 moles per gram of Pt of an alcohol, ether and/or aldehyde, or a complex obtained by reacting chloroplatinic acid containing 4H 2 O with tetramethyl tetravinyl cyclotetrasiloxanes, in the presence of NaHCO 3  in ethanolic solution. Optional ingredients include alkoxy-containing, hydrocarbon-substituted polysiloxane fluids, hydroxylated silanes and resinous organopolysiloxanes. The compositions can be press-cured at 100-200‹ C. using as curing agents benzoyl peroxide, tertiary butyl perbenzoate or bis-(2,4-dichlorobenzoyl) peroxide and/or heat-treated at 200-500‹ C. Examples are given.
Patent GB-1160808-A (GB)
Title: Apparatus for Cutting Hair
Inventor: CRISANTI ARMANDO
IPC: B26B21/08
Filed: 1967-11-28
Abstract: 1,160,808. Hair-cutting appliances. A. CRISANTI. 28 Nov., 1967 [5 Dec., 1966], No. 54039/67. Heading B4B. A hair-cutting appliance comprises a structure 1 having a blade 11 with a cutting edge and a supporting bar 18 having teeth 19. The structure includes a plate having teeth 3 and a passage 4 in which is disposed a rod 5 which is bent at 6 and has a screwthreaded end 7 which passes through a slot 8 in the plate and on which is screwed a nut 10 to secure a blade holder 9 which has teeth 12. The other end of the rod 5 has a screwthreaded end 16 on which is screwed a nut 17, the arrangement being such that when the rod 5 is adjusted by means of the nut 17, the cutting edge of the blade 11 projects to a greater or smaller distance beyond the free end of the teeth 3. Thereafter, for cutting hair, the appliance is positioned so that the free ends of the teeth 3 and 19 rest against the user's head and the appliance is moved in the direction of the arrow shown in Fig. 2.
Patent GB-1305537-A (GB)
IPC: C07D243/26
Filed: 1971-11-23
Abstract: 1305537 Benzodiazepines A H ROBINS CO Inc 23 Nov 1971 [24 Nov 1970] 54389/71 Heading C2C Compounds of the general formula (R = H, F, Cl, Br, NO 2 , CF 3 ; R<SP>1</SP>'<SP>2</SP> = H, F, Cl, Br) and their acid addition salts are prepared by reacting the corresponding 1-unsubstituted compound with a benzoylpropyl halide or 2- , phenyl - 2 - (3 - halopropyl) - 1,3 - dioxolane, followed in the latter case by regeneration of the keto group and optionally followed in either case by salt formation. The above compounds are anticonvulsants, tranquillizers and sedatives, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1287284-A (GB)
Title: Benzotriazole compounds
Inventor: BROWN JOHN COLIN
IPC: C07D249/18
Filed: 1969-06-26
Abstract: 1287284 Nitrobenzotriazole derivatives ILFORD Ltd 25 June 1970 54661/70 Divided out of 1287283 Heading C2C The novel compounds 4-nitro-5-methyl-benzotriazole and 4-nitro-5,6-dimethylbenzotriazole may be prepared by the mild nitration of 5- methylbenzotriazole and 5,6 - dimethylbenzotriazole respectively. They may be used as antifoggants in the development of silver halide photographic emulsions.
Patent GB-1096486-A (GB)
Title: A method of producing a thermo-couple
IPC: G01K7/04
Filed: 1966-12-08
Abstract: 1,096,486. Welding by pressure-soldering. TETRA PAK. A.B. Dec. 8, 1966 [Dec. 22, 1965], No. 55056/66. Heading B3R. [Also in Division H1] Thermocouples are produced by welding or soldering metal elements 3 positioned at intervals adjacent two parallel wires 12 and severing the wires adjacent the metal elements to provide individual couples. Fig. 3 shows the wires 1, 2 of iron and constantan positioned to receive a round of aluminium from foil 17 provided by punch 12 and ultrasonic welding is carried out by means of head 14 and tool 16. The wires are then advanced and the operation repeated; the continuous wires with spaced aluminium discs are wound on a reel and individual thermo-couples cut off as required.
Patent GB-1188969-A (GB)
Title: Flange Joints for High-Vacuum Systems.
Inventor: BALITSKY ANDREI VASILIEVICH
IPC: F16L23/20
Filed: 1967-12-04
Abstract: 1,188,969. Pipe joints. A. V. BALITSKY, N. I. PENKIN, L. A. FILATOVSKY, N. I. GAVRILOV, and R. E. RYBCHINSKY. 4 Dec., 1967, No. 55074/67. Heading F2G. A flanged joint comprises flanges 1, 2, Fig. 1, connected to the shells of high vacuum systems, the flanges having thin sections 4 between the shells and clamping means 6, the width of the thin sections being much greater than their thickness and a metallic seal 7 inserted between the flanges adjacent the thin sections between the thin sections and the clamping means. The flanges may be in the form of straight or curved sections (12, 13), Fig. 2, which are welded together to form non-circular flanges. The seal 7, e.g. of copper, nickel or iron, has tongues 10 on its internal perimeter.
Patent GB-1127600-A (GB)
Title: Improvements in and relating to laminated boards
Inventor: LEUSHNER DEL PAUL
IPC: B32B27/00
Filed: 1965-12-29
Abstract: 1,127,600. Laminates. CANADIAN INDUSTRIES Ltd. 5 Dec., 1966 [29 Dec., 1965], No. 55078/65. Heading B5N. A laminated building element comprises a layer of foamed rigid polyurethane or a rigid foamed cyclic ether bonded to a layer of a polyolefin-coated facing material by in situ reaction and foaming of a mixture of foamforming chemicals on the polyolefin-coated surface of the layer of facing material. Preferably, the laminate comprises a core of the foamed material sandwiched between two polyolefin-coated layers of facing material. The polyolefin, which is e.g. polyethylene or polypropylene, may be a matt polyolefin which has been subjected to an adhesion-improving surface treatment, e.g. a corona-discharge or ozone treatment. The coated layer(s) of facing material, which when two are present may be the same or different, may be flexible, e.g. paper, paper-board, metal sheet or foil, asbestos paper or sheet, or rubber; or semi-rigid, e.g. resin-bonded glass fibre; or rigid, e.g. wood, plywood, plasterboard, asbestos cement sheets, hardboard or fibreboard. Other examples given are paper-covered plasterboard, multiply paper board, kraft paper, and " semichemical fluting." The polyolefin coating may be applied to one or both surfaces of the facing layers by extrusion coating, or by pressure moulding. The laminates may be produced continuously or batchwise in which latter case the foam is generated in situ between two layers of facing material in a suitable press. Bonding may be effected by the heat produced in the foam-forming reaction, or further heat may be applied. The laminates may be used as building boards.