baber/WOPTO huggingface dataset:
Patent GB-1099260-A (GB)
Title: Light metal piston with gudgeon pin
Inventor: MEIER ALFRED
IPC: F16J1/16
Filed: 1966-11-10
Abstract: 1,099,260. Pistons. MAHLE KOMM GES. Nov. 10, 1966, No. 50460/66. Heading F2T. In a light metal piston having a cylindrical gudgeon pin mounted in two spaced bosses the external diameter of the pin and the internal diameter of the bosses are in a ratio of between 0À5 : 1 and 0À65 1 to the diameter of the piston. The gudgeon pin may be of light metal coated with a harder metal, e.g. hard chromium.
Patent GB-1109383-A (GB)
Title: Vehicle heater casings
Inventor: SMITH CECIL PERCY
IPC: B60H1/00
Filed: 1965-12-02
Abstract: 1,109,383. Vehicle heaters. VAUXHALL MOTORS Ltd. 27 Oct., 1966 [2 Dec., 1965], No. 51158/65. Heading F4V. A vehicle heater casing comprises an assembly of units 6, 7, 8, 9 formed from a rigid foam material such as expanded polystyrene, forming a duct 4 from a radiator 12 via a fan unit 19 or 19<SP>1</SP> to an outlet 5. The Figure shows a top view of an embodiment such that the curved surface of the unit 9 is directed towards the vehicle dashboard and the outlets 5 are directed downwardly. Air enters by an inlet in the scuttle of the vehicle and through an opening in the unit 9 as shown by the arrows. The units may be assembled by screw or adhesive means and protected by a coating of paint, polyester sheet or textile material. The fan motors are retained by radiating arms fixed to the casing.
Patent GB-1336450-A (GB)
Title: Gear rolling machines
IPC: B23F19/10
Filed: 1971-11-04
Abstract: 1336450 Making gears; rolling; cutting gears MAAG GEAR-WHEEL & MACHINE CO Ltd 4 Nov 1971 [6 Nov 1970] 51371/71 Headings B3M B3A and B3L A gear rolling machine employs at least one rolling tool 2 (Fig. 2) for rolling teeth on a workpiece 1, and at least one cutting tool 14 for trimming the edges of the teeth during the rolling operation. The workpiece is supported on a mandrel 3 which axially reciprocates and rotatably indexes the workpiece. The tool 14 is moved in synchronism with the reciprocation of the workpiece; the tool trims the teeth as the workpiece moves to the right (Fig. 1), and is retracted downwardly as the workpiece returns to the left. Movement of the tool is controlled by a hydraulically operated piston 18 which is spring-biased downwardly. A suction pipe 16 draws swarf and coolant away from the workpiece.
Patent GB-1477117-A (GB)
Title: Combined contact lens and method of manufacturing same
IPC: B29D11/00
Filed: 1975-12-17
Abstract: 1477117 Contact lenses MOSKOV NI INST GLAZNYKH BOLEZNEI IMENI GELMGOLTSA and INST VYSOKOMOLEKULYARNYKH SOEDINENY AKAD NAUK SSSR 17 Dec 1975 [17 Dec 1974] 51692/75 Heading G2J A contact lens comprises a central solid body of optically transparent material surrounded by an annular body of hydrophilic hydroxyl-containing material which is bonded to the central body by polymerization prior to shaping of the lens blank.
Patent GB-1126244-A (GB)
Title: Water soluble acylated cellulose ethers and process for producing the same
IPC: C08B13/00
Filed: 1966-11-18
Abstract: 1,126,244. Acylated cellulose ethers. HERCULES Inc. 18 Nov., 1966 [13 Dec., 1965], No. 51741/66. Heading C3A. A water-soluble acylated cellulose ether wherein the acyl group(s) is/are derived from a monobasic acylating agent is claimed per se and may be made by fibrously acetylating a water soluble cellulose ether with a monobasic acylating agent in the presence of a non-solvent reaction medium. The starting ether may be a carboxyalkyl, hydroxyethyl, hydroxypropyl, methyl, methyl hydroxyalkyl or carboxyalkyl hydroxyethyl cellulose. Acetic, lactic, stearic and propionic anhydrides are exemplified, and the non-solvent may be the anhydride itself, acetone or isopropanol. An acyl content of up to 16À2% (for acetyl) is mentioned in the examples. A reaction catalyst, e.g. NaOH, or sodium acetate or propionate, may be used.
Patent GB-1183159-A (GB)
Title: Process for Covering Radio-Active Balls with metal, and Radio-Active Balls Covered with Metal by this process
Inventor: CARDIS RAYMOND
IPC: C25D5/10
Filed: 1968-11-05
Abstract: 1,183,159. Radio-active sources. R. CARDIS. 5 Nov., 1968 [7 Nov., 1967], No. 52332/68. Heading G6R. Balls of radio-active material are covered with metal by first applying one or more metal coatings and then applying further metal layers in a series of electrodeposition operations between each of which the previous layer is decontaminated. Glass or ceramic balls containing Cs 137 may be coated with silver by spraying and then carrying out the electrodeposition, using new silver salt solutions for each stage, and washing with dilute acid between the stages. The radio-active balls may be used in a tubular support together with non-radio-active balls to form mobile trains for medical and other use.
Patent GB-1433980-A (GB)
Title: Automatic lathe
IPC: B23B7/12
Filed: 1974-12-06
Abstract: 1433980 Automatic lathes A WILLEMIN 6 Dec 1974 [10 Dec 1973] 52763/74 Heading B3T In a machine tool such as an automatic lathe having a rotary work spindle 9 and a plurality of cutting tools 14 on appropriate tool supports 13 the spindle, its drive 10, 11 and the tools and their supports are all mounted on a platelike member 4 which is pivotable about a horizontal axis which lies in the plane of the plate. The plate is pivotable by hydraulic means 6, 7 so as to incline or invert it to permit the chippings produced during a machining operation to fall unobstructed into a trough 16 in the machine frame. The whole operation of the machine can be automatically controlled.
Patent GB-1399515-A (GB)
Title: Method fo biological pruification of sewage
IPC: C02F3/06
Filed: 1972-11-17
Abstract: 1399515 Purifying waste liquid DEGREMONT SOC GENERALE D'EPURATION ET D'ASSAINISSEMENT 17 Nov 1972 [18 Nov 1971] 53194/72 Heading C1C A process for purifying waste liquid comprises treating it with flocculant (e.g. Al 2 (SO 4 ) 3 , FeCl 3 ) in vessel 11, separating the flocculated material in settler 17, passing the clarified liquid through at least one immersed biological filter bed 22, periodically backwashing the bed, e.g. with purified liquid from vessel (35a, and conveying the backwash water to vessel 35 upstream of vessel 11, the bed 22 comprising a material which on backwashing retains bacteria on certain parts of its surface and loses bacteria from its smooth surface parts. The bed 22 is aerated by air, oxygen-enriched air or oxygen entering through pipe 23 and diffuser 19. The liquid after passing through bed 22 may be further purified by passing it through a refining bed (e.g. of sand) which may be positioned below bed 22 or an activated carbon adsorption bed (e.g. for removing tannings). The filter material 22 may be a clay which has been burned with dextrin.
Patent GB-1455026-A (GB)
Title: Conveying apparatus
IPC: E21C35/20
Filed: 1973-11-16
Abstract: 1455026 Scraper conveyers GEWERKSCHAFT EISENHUTTE WESTFALIA 16 Nov 1973 [20 Nov 1972] 53250/73 Heading B8A [Also in Division E1] A jib A of a cutter-loader of a mining machine comprises an electric motor 13, a gear reduction unit 14 and, at the free end C, a rotatable member 10 for driving a single chain scraper assembly 12. A sprocket 46 of the member 10 is mounted on a shaft 39 which also carries a pair of cutting wheels 42. The motor housing includes channel portions 18, 19 such that, when the housing is bolted between the gear unit 14 and a section 24 of the jib, the portions 18, 19 form parts of guide channels for the endless scraper assembly 12. The gear unit 14 and section 24 also have guide channels. The unit 14 comprises bevel gearing 32, 33 and spur gearing 34-38. As shown, a rotatable member 11 at end B of the jib is freely rotatable but the member may be driven, Fig. 5 (not shown), the motor and gear units then being positioned adjacent the member 11. Alternatively, a drive unit may be provided for each member 10, 11. The cutters 42 may be dispensed with and two conveyer chains may be provided. The jib may be mounted on a turntable and arranged for raising and lowering.
Patent GB-1292825-A (GB)
Title: A gear type hydraulic pump or motor
IPC: F04C2/08
Filed: 1969-10-31
Abstract: 1292825 Hydraulic gear pump or motor FRIEDRICH WILHELM FRST VON HOHENZOLLERN [trading as FURSTLICH HOHENZOLLERNSCHE HTTENVERWALTUNG LAUCHERTHAL] 31 Oct 1969 [18 Nov 1968] 53540/69 Heading F1F A hydraulic gear pump or motor comprises internally meshing gears 2,3, the numbers of teeth of the two gears differing sufficiently for a crescent-shaped chamber 44 to be formed between the non-engaging teeth, this chamber communicating with the inlet and outlet ports 5,5' through suitably dimensioned leakage gaps so that an intermediate pressure is built up in this chamber to partly counter-balance the thrust due to the pressure on the pressure side. The leakage gaps are produced by extending the ports 5,5' angularly to points slightly less than one tooth division from the point where the teeth of the two gear wheels run out of mesh. Adjustment of the leakage gaps may be achieved by locating the ports 5, 5' in an angularly adjustable end plate. The tooth flanks of the internally toothed gear 2 are preferably arcuate, the remote flanks of adjacent teeth lying on the same cylindrical surface. Axial sealing is effected by a thrust plate 12 biased against the gears by working fluid supplied to areas 22 via passage 49. Fluid leaking across the side faces of the gears is collected in grooves in the casing 1 and plate 12 and is fed therefrom via passages 21,32,33,35,27 and 28 to hydrodynamic bearings 36,36' and 29, the fluid leaking from the bearings being bled off via passages 20 and 11. Pressure fluctuations in chamber 44 are damped by connecting the chamber by a passage 23, Fig.1, to a bore containing a spring loaded plunger Fig.4 (not shown). A regulating and relief valve communicates with passage 33.
Patent GB-1294693-A (GB)
Title: Fuel-resistant rubber vulcanizates
Inventor: OETZEL J
IPC: C08L71/02
Filed: 1969-11-03
Abstract: 1294693 Rubbery epihalohydrin interpolymer compositions B F GOODRICH & CO 3 Nov 1969 [1 Nov 1968] 53708/68 Heading C3R A vulcanizable composition comprises (1) a rubbery, amorphous interpolymer having a number average molecular weight of at least 70,000 prepared from a mixture of 90 to 99% by weight of an epihalohydrin with 1 to 10% by weight total of one or more saturated epoxy monomers, (2) a halogenated butyl rubber in which about 25 to 100% of the original isoprene units have been saturated by reaction with chlorine, bromine or iodine and (3) a dual curing system comprising (a) a mercaptoimidazoline of the formula wherein the unsatisfied bonds are attached to H or C 1-6  alkyl groups, or a mercaptopyrimidine selected from 2-mercapto-, 4,6-dimethyl-2- mercapto-, 5 - butyl - 2 - mercapto- and 4- ethyl - 5 - propyl - 2 - mercaptopyrimidines, or a polyamine (at least 2 amino groups), and (b) a polyvalent metal compound which is an oxide or salt of a metal of Group 2A, 2B, 3A, 4B or 5A of the Periodic Table. The two rubbers are present in proportions of about 80 to 95 parts by weight of (1) with about 5 to 20 parts of (2). The curing system is used in amount of 0À25 to 10 parts by wt. of (a) and 1 to 20 parts of (b) per 100 parts of total rubber (1) and (2). Curing is effected by heating at 250 to 475 F. The saturated epoxy monomer has the general formula where R 1 , R 2 , and R 3  are H, alkyl, alkoxyalkyl or phenyl, at least one being H. When an alkaline polyvalent metal oxide is used, an amine salt may be used in addition to or instead of the free amine. Of a number of polyvalent metal compounds specified, red lead and magnesium oxide are preferred. Fillers such as carbon blacks, fine calcium silicate and silica may be added.
Patent GB-1191918-A (GB)
Title: Continuous Film-Processing Machine
Inventor: HOSTERT WALTER
IPC: G03D3/13
Filed: 1967-11-27
Abstract: 1,191,918. Processing apparatus. W. HOSTERT. Nov. 27, 1967, No.53970/67. Heading G2A. In a continuous film processing machine, a film or piece of film is carried through the processing tank between a pair of endless flexible parallel conveying elements 4, the edges of the film being held in grooves 5a, 5b of the elements 4. More than two conveying elements may be provided to accommodate more than one film. The elements 4 pass over rollers 2, 3 which are laterally adjustable to accommodate various film widths. The elements 4 may be flexible rubber bands or chains with links formed of plastics material having the guide grooves 5a, 5b, in their sides. At the entry and exit points F, G, the elements 4 are more widely spaced apart than in the aperture run through the tank to permit the film to be easily fed into and removed from the system. Feed rollers 11 Fig. 3 (not shown) and a chute (10) facilitate entry of the film between elements 4.
Patent GB-1414975-A (GB)
Title: Coating processes
IPC: C08J7/056
Filed: 1972-11-22
Abstract: 1414975 Coated articles BOSTIK LTD 22 Nov 1972 [23 Nov 1971] 53999/72 Addition to 1349038 Heading B2E Coated articles are produced by providing a polymeric surface layer comprising polymer molecules having at least one hydrogen atom in a repeating unit of a carbon-carbon chain of the polymeric molecule and having a critical surface tension of wetting of not more than 35 dynes per centimetre with a photosensitizer having a triplet state energy of at least 62 Kcal/mole, promoting generation of free radicals in molecules of the surface layer by irradiation with ultra-violet light having a wavelength from 2000-3500, to an extent of not less than 1000 watt seconds per square foot of surface layer, and then applying to the surface layer a coating composition comprising either an epoxy resin and an amino curing agent for the epoxy resin or heat-curable mixture of an hydroxyl terminated isocyanate-reacted alkyd and a melamine formaldehyde curing agent, and curing the coating. Polymers which may be treated are polyethylene, polypropylene, copolymers of ethylene and propylene, copolymers of ethylene or propylene with vinyl acetate or non-conjugated diene, polyvinyl fluoride, polyvinylidene fluoride. The surfaces of moulded bodies of resins selected from polyacetal resins, polyamide resins, polycaprolactam resins, polyurethane resins, and ionomer resins which have been contaminated, e.g. by mould release agents are also specified.  Preferred photosensitizers are benzophenone, acetophenone, benzoin, 2-acetonaphthone, acenaphthene and fluorene. The photosensitizer may be applied to the polymeric surface layer as a solution or as a pure liquid or by melting and spraying fusible solid photosensitizer or by dusting of a powder. Solid photosensitizers of the ketone type may be uniformly distributed through the polymeric material from which the surface layer is to be formed.
Patent GB-1149069-A (GB)
Title: Photographic colour elements
IPC: C08G18/67
Filed: 1966-12-05
Abstract: 1,149,069. Polyureas; polyurethanes; polyamides. FUJI SHASHIN FILM K.K. 5 Dec., 1966 [30 Dec., 1965], No. 54381/66. Heading C3R. [Also in Division G2] Polymers of the formulµ wherein M is an alkali metal and R is an aliphatic or aromatic bivalent group are prepared (i) by reacting a diisocyanate, a dicarboxylic acid or a functional derivative thereof or a di- (chlorocarbonic acid ester) of a diol with an alkali metal 4, 4<SP>1</SP>-diamino-stilbene-2,2<SP>1</SP>-disulphonate or (ii) by reacting a diisocyanate and an alkali metal 4, 4<SP>1</SP>-dihydroxy stilbene-2,2<SP>1</SP>- disulphonate in the case of compounds of Formula IV. Reference is made to the polymers having intrinsic viscosities of 0À70, 0À20, 0À30 and 0À50 respectively at 30‹ C. The compounds are used as U.V. absorbers (see Divisions G2-G3)
Patent GB-1430950-A (GB)
Title: Integrated logic circuit for the decoder of a multi-channel stereo apparatus
IPC: H04S3/02
Filed: 1973-11-23
Abstract: 1430950 Quadraphonic decoder logic circuits SONY CORP 23 Nov 1973 [1 Dec 1972] 54594/73 Heading H4R An integrated logic circuit in a 4-2-4 decoder for detecting the dominant component in the four decoded signals to generate two signals controlling them comprises differential amplifiers 86, 88 formed by two pairs of transistors 276, 277 and 279, 280 whose bases receive the decoder outputs and whose collectors are connected to the bases of two further pairs of transistors 282-285 whose paired collectors provide the control signals to terminals 288, 289 and whose emitters are connected so as to form another differential amplifier 94. The circuit forms part of a "wavematching logic" (Fig. 2, not shown) which detects whether the difference between the dominant components in the four channels is greater or less than that in the rear channels and generates control signals to increase the gain of the greater difference channels and reduce the gain of the lesser difference channels thereby reducing the subjective effects of crosstalk. The signals R F <SP>1</SP>, L F <SP>1</SP>, R B <SP>1</SP>, L B <SP>1</SP> are the rectified decoder outputs and contain dominant and crosstalk components in differing phase relationships. These signals are applied through time-constant circuits 294, 297, 298 and 299, 302, 303 to the bases of the first transistor pairs 276, 277 and 279, 280. Additional transistors 304, 305 and 307, 308 define a threshold (slice) level which must be exceeded by the difference between the decoded input signals before an output is obtained. The outputs from the first transistors represent L F <SP>1</SP>-R F <SP>1</SP>, R F <SP>1</SP>-L F <SP>1</SP>, L B <SP>1</SP>-R B <SP>1</SP> and R B <SP>1</SP>-L B <SP>1</SP> which are full-wave rectified by the further transistors 282-285 (thereby also converting 180 degree phase difference to reference 0 degree phase) interconnected by transistors 310, 311 to form the differential amplifier 94 determining which of the rectified difference signals is of greater amplitude and applying a corresponding control signal to the appropriate terminal 288 or 289. A "front-back" logic circuit (B, Fig. 2) which mixes the front channels or the rear channels according to the difference between L F <SP>1</SP>-R F <SP>1</SP> and L F <SP>1</SP>+R F <SP>1</SP> is of a similar nature and may be manufactured as a similar integrated circuit.
Patent GB-1442746-A (GB)
Title: Fluidic flow devices
IPC: F15C1/10
Filed: 1972-11-27
Abstract: 1442746 Fluidic elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 29 Oct 1973 [27 Nov 1972] 54649/72 Heading G4P A bi-stable wall attachment fluidic amplifier has ducts connecting the control ports to the main fluid input I, the ducts containing resistors n, l of differing characteristics so that when the fluid flow rate is low the resistance of one resistor (1) is greater, and when the flow rate is high the resistance of that resistor is less, than the resistance of the other resistor (n). Consequently at low flow rate the flow is directed to one outlet port L, and at high rate to the other H. Hysteresis is controlled by a feedback duct F connected between the high flow rate outlet H and that control duct which biases the main stream away from that outlet. The resistor n is this control duct may be a simple restrictor, and the other l may be a number of long thin tubes providing laminar flow to the other control port.
Patent GB-1459576-A (GB)
Title: Adducts containing epoxide groups based on polyesterdicarbo xylic acids
IPC: C08L63/00
Filed: 1974-12-18
Abstract: 1459576 Adducts containing epoxy groups CIBA-GEIGY AG 18 Dec 1974 [19 Dec 1973] 54687/74 Heading C3B Epoxide resin mixtures comprising "advanced" adducts, i.e. of higher M.W. but still containing epoxy groups, are prepared from: (A) an adduct containing epoxy groups obtained by reaction of a polyepoxide (I) with 0À3-0À5 carboxyl group equivalents per epoxy equivalent of I of a long chain polyester dicarboxylic acid (II) HOOC-A-COOH in which the radical A is a radical comprising optionally substituted alkylene or alkenylene chains alternating with carboxylic ester groups and wherein the quotient Z/Q, Z being the number of carbon atoms and Q being the number of oxygen bridges in the recurring unit of A, is at least 4 and the number of carbon atoms in A is at least 50 (such adducts are described and claimed in Specification 1,182,728); and (B) 0À3-0À5 carboxyl group equivalents per epoxide equivalent of the adduct (A) of a polyester dicarboxylic acid (III) wherein R<SP>1</SP> and R<SP>2</SP> are divalent organic radicals, at least one of which contains a carbocyclic or heterocyclic ring and in which the radical -(O-R<SP>1</SP>-O-CO-R<SP>2</SP>-CO)- contains not more than 3 methylene groups per ring and in which n = 1-30. An example of III is prepared from hexahydrophthalic acid and 1,1-his- (hydroxymethyl)-cyclohexene-3. The adducts, optionally in admixture with conventional epoxy resins, may be cured with known hardeners, e.g. hexahydrophthalic anhydride.
Patent GB-1236448-A (GB)
Title: A static converter for supplying a high direct voltage to a discharge electrode
Inventor: SCHIMMER ARNIM KARL
IPC: H02M7/04
Filed: 1968-11-20
Abstract: 1,236,448. A.C./D.C. converters. A. K. SCHIMMER. 20 Nov., 1968 [24 Nov., 1967], No. 55006/68. Heading H2F. In a rectifying arrangement, a resistor and a rectifier string are connected end to end within an insulating sheath, forming a connector cable. The cable comprises a resistor part 19 (Fig. 2) for connection to an A.C. supply, an interconnector plug, which may be of conductive glass or plastics if the resistor is liquid, a rectifier section 18 including a string of rectifier pellets or selenium plates which may be urged together by a spring, an output terminal 4, an insulating sheath 22 in which a conductive layer 20 is embedded and together with an earth electrode layer 9 forms a capacitor. The cable may be terminated in a plastics sleeve 24 having a protective collar 25 and to which a handle may be attached. The resistor material may be of wire, conductive plastics strip, a resistive coating in spiral form on a plastics rod or strand, or of liquid. The cable may be coaxial e.g. for H.F. inputs. The application to electrostatic paint sprayers, electrostatic filters and X-ray screens is suggested. The rectifier part may be divided into sections and connected to capacitor layers at suitable points to form a voltage multiplier (not shown). There may be a further attenuation resistor between the rectifier section and the discharge electrode (Fig. 1e, not shown).