baber/WOPTO huggingface dataset:
Patent GB-1200147-A (GB)
Title: Tire inflation monitory system
Inventor: BEATTY ROBERT DUNLAP JR
IPC: B60C23/06
Filed: 1968-10-09
Abstract: 1,200,147. Sensing under-inflated tyres. EATON YALE & TOWNE Inc. 9 Oct., 1968 [20 Oct., 1967], No. 47918/68. Heading G4H. Apparatus for sensing an under-inflated tyre on a wheel of a vehicle includes a comparator comparing a signal representing rotation of the wheel with a signal varying with the speed of the vehicle to provide a signal when the signals differ by a predetermined amount. In the embodiment described pulses derived from sensors 22a, 22b (Fig. 3) generated as each of the front wheels rotates are applied to the addsubtract leads respectively of a first bidirectional counter 26a preset either at regular time intervals or each time the vehicle travels a predetermined distance (measured by the time taken for a counter 40 pulsed by the sensor 22a to fill). Similarly the sensors 22c, 22d on the back wheels control a second presettable bidirectional counter 26d. The counters, if driven from their preset state to their zero state by too many pulses on one of their input leads, energize, via AND gates 31a, 31b, OR gate 35 and a silicon controlled rectifier 37, a lamp 39 to indicate an under-inflated tyre. Alternatively a tachometer may be driven by each wheel and their output voltages applied to a Wheatstone bridge, a relay connected across the output terminals of the bridge being actuated to energize a lamp if a difference voltage exists for a predetermined time. The sensors may be switches opened by permanent magnets attracted to a metal block on the brake drum of the wheel or a coil on a core.
Patent GB-1028146-A (GB)
Title: Printed circuit edge connector
Inventor: COLLIER JOHN COVELL
IPC: H01R12/72
Filed: 1963-12-05
Abstract: 1,028,146. Edge connectors. AMP Inc. Dec. 4, 1964 [Dec. 5, 1963], No. 48025/63. Heading H2E. To avoid wearing of a coating 4<SP>1</SP>, 5<SP>1</SP> (Fig. 2), provided on contact springs 4 and 5 in an edge connector, a second coating 9, 10 provided on the printed circuit board is such that when the circuit board is mated with the connector the length of the surface of the coatings 4<SP>1</SP>, 5<SP>1</SP> swept by the surface of the coatings 9, 10 is greater than the length of the surface of the coatings 9, 10 swept by the surface of the first coatings 4<SP>1</SP>, 51. In the embodiment described, this is done by applying the second coating to the ends of studs 8 which are soldered to the printed circuit board 3. Thus, as the printed board is inserted only the top portion of the studs 8 come into contact with the first coatings 4<SP>1</SP>, 5<SP>1</SP>. The top of the studs may be grooved (Fig. 4, not shown), to provide guide channels for the contacts 4, 5 and the ribs 7 which support the printed circuit board 3 whilst in the connector may be provided with projections to ensure correct alignment. The coatings may be of gold, rhodium, palladium or tin.
Patent GB-1412648-A (GB)
Title: Duct for wires and cables for the distribution of energy
IPC: H02G9/04
Filed: 1972-10-18
Abstract: 1412648 Cable ducts R J L P HORDEQUIN and C M LEFEBVRE 18 Oct 1972 [19 Oct 1971] 48065/72 Heading H2C A cable duct, e.g. of P.V.C. suitable for embedding in a pavement comprises sections 1 having a body 2 subdivided in the longitudinal direction and closed by a lid 3 and section joining sleeves 13 made up of a lower part 14 and a lid 16, each sleeve surrounding adjacent ends of sections to form a completely closed multiple passage duct. The side walls and intermediate walls of the sections may be provided with portions 6 on their upper edges which co-operate with portions 4, 5 on the lid 3 to position and support the lid ; the co-operating portions may also form resilient catches. The lid has a non-slip upper surface which in use lies in the plane of the pavement. The body portion 2 has flanges 11 which, in use, are embedded in concrete 12. The joint sleeves have an internal configuration which closely matches the outline of the sections. The lids of the sleeves have locking means 17 to prevent unauthorized access to the duct. The lower part of each sleeve has an opening 18 through which water can drain from the duct into drainage channels 22. Cables are arranged to leave the duct downwardly through branch sleeves (25), Fig. 3, not shown, running from the central sub-duct 10.
Patent GB-1485995-A (GB)
Title: Process for the manufacture of non-inflammable synthetic foams
IPC: C08J9/00
Filed: 1974-11-06
Abstract: 1485995 Foamed furan resins BOLIDT LICENSE NV 6 Nov 1974 [9 Nov 1973] 48103/74 Heading C3C A process for the manufacture of non-inflammable plastic foams comprise reacting in an aqueous medium, or mixture of one or more furan resins (resins derived from furfuraldehyde, furfuryl alcohol, tetrahydrofurfuryl alcohol and/or furane co-condensates based on furfuryl alcohol and cresol melamine, urea and/or phenol) with an acid with from 1-500 parts by weight of additional resins selected from at least one of polyesters, acrylics, alkyds, polyurethanes, epoxy resins, phenolic resins and aminoplast resins per 100 parts by weight of furane resin. The acid may be present in an amount of 3-50 parts by weight, per 100 parts by weight of furane resin and the preferred acid is orthophosphoric acid. The composition may comprise blowing agents, preferably phosphoric acid with an acid-soluble carbonate and/or aluminium. Flame-proofing agents which may be added include those based on boron, phosphorus, bromine, chlorine, nitrogen and components selected from antimony trioxide, asbestos, perlite, vermiculite, sodium silicate, aluminium phosphate, aluminium chromophosphate, alumina, diatomaceous earth, gypsum, porcelain clays and/or cement. To convert the resin into a carbon foam under the action of heat, monohydric alcohols and/or polyhydric alcohols (sugar, dextrose, starch) and/or urea may be added. In the examples, 85% phosphoric acid is used with (1) furanurea condensate, Fondu (alumina cement), sodium silicate, kaolin, china clay, asbestos, dolomite, boric acid and aluminium oxide, (2) furane resin co-condensate/furan/urea, unsaturated polyester, asbestos, china clay, diatomaceous earth, calcium magnesium carbonate, slate powder, boric acid and expanded glass; (3) furane resin co-condensate/furane/melamine, epoxide and dolomite; (4) furane resin cocondensate/urea/furane, polyester, epoxide and calcium magnesium carbonate; (5) furane resin co-condensate/furan/phenol, silicified wood flour, kaolin, china clay, asbestos, aluminium silicate, calcium silicate, magnesium oxide, boric acid and wetting agent containing fluorine ; (6) furane resin co-condensate, polyester, aluminium powder, magnesium oxide, kaolin, gypsum, Moler clay and aluminium silicate; (7) furane resin co-condensate, urea/formaldehyde, waterglass, kaolin, diatomaceous earth, calcium carbonate and asbestos powder; (8) furane resin co-condensate, urea/formaldehyde, wetting agent, magnesium oxide, kaolin, gypsum, asbestos, china clay, and mica; (9) furane resin, urea/formaldehyde, acrylic resin, kaolin, aluminium powder and magnesium oxide; (10) furane resin, urea/formaldehyde, kaolin, highly disperse silica, glycerol and sugar; (11) furane resin, urea/formaldehyde, kaolin, china clay, asbestos, silicified word flour, aluminium silicate, calcium silicate and magnesium oxide.
Patent GB-1130646-A (GB)
Title: Improvements relating to electronic amplifiers
Inventor: GRUNDY DAVID LATHAM
IPC: H03F3/22
Filed: 1966-10-27
Abstract: 1,130,646. Transistor amplifiers. FERRANTI Ltd. 5 Oct., 1967 [27 Oct., 1966], No. 48216/66. Heading H3T. In a Class B push-pull amplifier, cross-over distortion is substantially eliminated by providing the Class B stages with an alternating bias signal of frequency at least twice the maximum required output frequency of the amplifier and of an amplitude sufficient to switch the Class B stages repetitively into and out of the linear mode of operation. As shown, two Class A stages T1, T2 are followed by two Class B stages T3, T4 and T5, T6, the alternating bias being provided by a free-running multivibrator TA, TB and fed to the emitters of transistors T3, T4. The alternating bias signal is filtered out at the output. The technique of the invention is also applicable to valve amplifiers.
Patent GB-1531723-A (GB)
Title: Biocides
IPC: C05G3/60
Filed: 1974-11-12
Abstract: 1531723 Polymeric biguanides IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Oct 1975 [12 Nov 1974] 48876/74 Heading C3R The invention comprises polymeric biguanides and salts thereof in which the recurring unit has the formula in which each R independently represents a hydrogen atom or a hydrocarbon radical, and wherein X represents a group (m is from 2 to 12) or the group Y, and Y represents -(CH 2 CH 2 O) n CH 2 CH 2 - (n is an integer), -(CH 2 ) 5 .O.(CH 2 ) 5 - or a polymethylene chain interrupted by one or more -NH groups, the total number of carbon atoms in X and Y together being at least 17. The polymers are prepared by reacting a bisdicyandiamide of formula with a diamine RHN-Y-NHR, or by reacting a diamine salt of dicyanimide having the formula with a diamine RHN-Y-NHR or an inorganic salt thereof, or by reacting 1 mol proportion of dicyanimide or an equivalent amount of a metal salt thereof with approximately 0À5 mol proportion of a diamine of the formula RHN-X-NHR and reacting the product so obtained with a mixture of a diamine of the formula and a monoamine of formula R<SP>1</SP>R<SP>2</SP>NH. The polymers are fungicidal and bactericidal and may be mixed with solid diluents or dissolved or dispersed in water or non-aqueous liquids to form compositions for the control of microorganisms. Examples are given.
Patent GB-988023-A (GB)
Title: Method of providing protection for a pn junction formed in a silicon body
IPC: H01L21/306
Filed: 1962-12-31
Abstract: In a method of protecting a silicon PN junction the surface of the silicon slice is treated with sulphuric acid followed by oxidation of the silicon surface in a steam at about 1200 DEG  C. and the cooling of the slice in an inert gas.  In the method described silicon diodes, formed of mesa etched slices, are degreased in a suitable solvent which is then removed by a methyl alcohol rinse followed by boiling in nitric acid for 20 minutes at 100 DEG  C., in turn followed by a deionized water rinse, the surface treatment being completed by immersion of the slices in concentrated sulphuric acid for twenty minutes at 1200 DEG  C.  Removal of most of the sulphate from the surface of the slice is performed by a water rinse followed by immersion in hydrofluoric acid, rinsing in water, further immersion in nitric acid before the slices are placed in a quartz boat and subjected to steam at atmospheric pressure for 5 1/2 hours, after which they are dried in helium for about an hour at 1200 DEG C., the oxidation temperature, then cooled in helium to room temperature. The oxide layer formed is about 20,000 <\>rA thick.
Patent GB-1090987-A (GB)
Title: Improvements in or relating to the production of catalysts
Inventor: HAMBLING JAMES KEITH
IPC: B01J23/70
Filed: 1965-11-19
Abstract: C2- 6 alpha-olefins are dimerized in the presence of a catalyst made by impregnating active carbon with an aqueous solution of a salt of Co or Ni, removing surplus water, treating with steam at 110-350 DEG C. and treating the steam treated catalyst with an inert gas at 270-350 DEG C. The catalysts are especially useful for converting ethylene, propylene and butenes to linear dimers.  Dimerization is preferably effected at 20-200 DEG  C. and 300-1000 p.s.i.g. in liquid phase.  Example 2 describes the conversion of propylene to hexenes.ALSO:Dimerisation catalysts are made by impregnating activated carbon with an aqueous solution of a heat decomposable salt of cobalt or nickel, removing surplus solution and water, treating the substantially dry impregnated carbon with super-heated steam at a temperature of 110-350 DEG C and finally treating with an inert gas at 270-350 DEG C.  Prior to impregnation the activated carbon may be treated with HNO3.  Cobalt or nickel acetates, formates or nitrates may be used as impregnating salts.  The inert gas may be nitrogen.
Patent GB-493991-A (GB)
Abstract: 493,991. Linkwork. DECKEL, F., (trading as DECKEL PRAZISIONSMECHANIK UND MASCHINENBAU, F.). Jan. 14, 1938, Nos. 1344 and 1345. Convention date, Jan. 12. 1937 and Dec. 29, 1937. [Class 80 (iii)] Consists in a method of equalizing or otherwise regulating the effective power of a spring or other power storage device acting through a fusee pulley on a load, by adjusting the leverage whereby the power storage device acts on the pulley, or the leverage whereby the pulley transmits the power to the load. A spring 5, Fig. 2, is to balance or partly balance a weight Q which may be a vertically moving part of a machine, e.g. a radial boring machine. The spring is connected by a belt 4 to the scroll surface 2 of a pulley 1 integral with which is a coned pulley 6, Fig. 2. This pulley has a longitudinal guide groove 7 in which is adjustable by a fork 11 a shackle 8 to which is attached a bolt 10 passing over pulleys 13 and carrying the weight Q. Normally the varying force in the spring 5 in conjunction with the varying radius R of the scroll balances the weight Q. If, however, this weight be altered, balance is obtained by varying the leverage r by shifting the belt 10 along the pulley 6. This pulley may be stepped or may be formed of radially adjustable segments, Figs. 3, 4 (not shown). In a modification, Fig. 5, adjustment of balance is effected by altering the leverage at which the spring 5 acts on the spindle C. This may be effected either by raising or lowering the spindle C, e.g. by a screw 31 and nut 33, or by displacing the spring 5 transversely to its direction of pull. Thus, if the weight Q<1> increases, the spring 5 may be moved to the right, or as shown in Fig. 6, the spindle C may be raised giving an increased leverage R<2>. The distances H, L remain unchanged. If the weight is reduced, the spindle is lowered, or the spring moved to the left. If balance is to be required for only a part of the movement of the weight, the scroll is formed with a flat portion. An automatic lifting of the weight may be obtained by forming a flat part on the pulley 29 on the spindle C.
Patent GB-1311219-A (GB)
Title: Fuse for a gyratory rocket missile including a safety device
IPC: F42C15/22
Filed: 1971-10-25
Abstract: 1311219 Projectile fuzes MEFINA SA 25 Oct 1971 [3 Nov 1970] 49406/71 Heading F3A A fuze for a rocket comprises a primer carrier 6 movable under the action of centrifugal force from a safe into an armed position, a locking member 16 for the primer carrier radially displaceable under the action of centrifugal force, and an axially displaceable member 21 retaining the member 16 in its locking position. Springs 18 and 18<SP>1</SP> also assist in the latter respect. Upon firing the rocket, the member 21 sets back under the effects of axial acceleration and frees the locking member 16 for outward movement. The primer carrier, thereby released, pivots about the shaft 8 into the armed position, its movement being retarded by an escapement mechanism. The carrier is locked in the armed position by a finger 29 which moves radially outwardly under the effects of centrifugal force. The member 21 is retained in its active and inactive positions by the ends of an open spring loop 42.
Patent GB-1461668-A (GB)
Title: Warp-knitted tape for sliding clasp fasteners
IPC: D04B21/14
Filed: 1974-11-15
Abstract: 1461668 Knitted stringer tapes YOSHIDA KOGYO KK 15 Nov 1974 [19 Nov 1973] 49463/74 Heading D1K A warp-knitted stringer tape comprises a web formed by chains of stitches 13 having alternately open and closed laps 13a, 13b, tricot stitches 14 interknitted therewith and transversely extending lapping threads which form V-turns round the interknitted stitches and has a marginal edge in which two layers of tricot stitches 16 are formed by a doublerow needle arrangement, the marginal edge being connected to the web by an outermost lapping thread which is thicker than the rest.
Patent GB-1078106-A (GB)
Title: Spray device for dishwashing apparatus
IPC: A47L15/23
Filed: 1964-12-04
Abstract: 1.078.106. Spray - producers. HOBART MANUFACTURING CO. Dec. 4, 1964 [Dec. 5, 1963], No. 49528/64. Heading B2F. [Also in Division A4] A rotary spray device in a dishwashing machine comprises a hub 40 having an inlet passage 54 leading into a number of flow passages 55 each fitted with a nozzle 70 including a fitting 60 which directs the flow of liquid, via a surface 65 onto a guiding wall 74 so as to discharge the liquid in a wide stream. The spray device is provided with six nozzles (Fig. 2) each dimetrically opposite pair describing a different diameter circle so as to form three walls of liquid. The nozzles are secured in the hub by means of screws 68 thereby allowing them to be angled in order that a reaction-jet effect is produced to rotate the device. Two spray devices are mounted in the dishwashing machine above a conveyor (25) (Fig. 1) on which trays (26) of dishes are carried; the dishes pass through first and second cleansing chambers (12), (14) and finally into rinse chamber (16) in which clean hot water is supplied by a fixed nozzle (37). The hot rinsing water is controlled by a movable arm (38) sensing the presence of a rack beneath the nozzle.
Patent GB-1056657-A (GB)
Title: Process for the preparation of fluorides of xenon and krypton
Inventor: MEINERT HASSO
IPC: C01B23/00
Filed: 1965-11-22
Abstract: The fluorides of Xe and Kr are formed by the reaction of Xe or Kr with a fluorochloro carbon compound (e.g. CF2Cl2) effected by an electrical discharge between electrodes external to the reaction vessel.  Any unreacted reaction mixture may be recirculated to the chamber. The fluorides may be separated by cooling.
Patent GB-1132977-A (GB)
Title: Improvements in or relating to check valves
IPC: F16K15/02
Filed: 1965-11-25
Abstract: 1,132,977. Valves. MIDLAND-ROSS CORP. 25 Nov., 1965 [25 Nov., 1964], No. 50066/65. Heading F2V. A check valve, suitable for an automotive air brake system supplied by a reciprocating compressor and designed to avoid hammering, comprises a cap-shaped valve member 22 slidable on an inlet fitting 12. The lip 23 of the valve member engages a conical seat 24 in closed position. A damping chamber 25 enclosed between the valve member and the base 26 of the fitting, communicates with the inlet through an orifice 27. The valve is responsive to the pressure difference between chamber 25 and the outlet to control transverse flow ports 21, and may be loaded by a light spring 28.
Patent GB-1244537-A (GB)
Title: Improvements in or relating to electrical storage heaters
Inventor: CHIDLOW ERNEST
IPC: F24H7/04
Filed: 1969-10-14
Abstract: 1,244,537. Storage heaters. E. CHIDLOW & CO. Ltd. 26 Aug., 1970 [14 Oct., 1969], No. 50351/69. Heading F4U. In a storage heater 10, which operates during an off-peak period and which includes a housing 13, a thermal storage block 11 containing one or more electrical resistance elements, and a passageway 16, 17, a thermostatically-controlled (21) electrical heating element 12 is provided in the passageway. In operation, after the storage heater has ceased to draw electrical power during an off-peak period, the convector heating elements 12 are required to boost the output of the storage block. The storage heater may include a fan or blower to assist the flow of air along the passageway.
Patent GB-1045103-A (GB)
Title: Improvements relating to the selectively modifying of photoconductor surfaces
IPC: G03G9/12
Filed: 1964-12-11
Abstract: 1,045,103. Electrophotographic processes; photo-mechanical printing. COMMONWEALTH OF AUSTRALIA. Dec. 11, 1964 [Dec. 13, 1963], No. 50636/64. Headings G2H and G2M. The after treatment of a photo-conductor surface, on which an electrostatic latent image has been developed, takes place while the surface is still moist with developer liquid. The treatment includes the application of a liquid, which imagewise attacks the photo-conductor or its binder or predisposed them to image-wise attack, and is at least in part immiscible with at least part of the developer liquid. The developer may be deposited, from the surface of a previous application roller (Figs. 1 and 2, not shown), on the image areas as a protective resist or its hydrocarbon phase may wet the non-image areas and prevent their subsequent attack. In the event of the developer such as a viscous silicone oil or a pigment, protecting the image areas, the wetting action of the hydrocarbon phase on the non-image areas is counteracted by treating the surface with an emulsion of a hydrocarbon liquid and water containing a wetting agent. This hydrophilises the non-image areas, at which the photo-conductor, such as alkyl resin bonded zinc oxide, is subsequently decomposed by means of an alcoholic solution of an alkali metal hydroxide. A selenium photo-conductive layer may be decomposed by alcoholic alkali metal sulphide or carbon bisulphide. Alternatively, the binder of a zinc oxide photo-conductor can be softened imagewise by applying oleic acid in xylene. The softened non-image areas are removed by wiping with a solvent. When the image areas are to be removed or hydrophilized, a hydrocarbon suspension of potassium sulphide or a water soluble starch or gum is used as developer, as that the water soluble component deposits in the image areas. Subsequent application of water, without a wetting agent, does not remove the hydrocarbon from the non-image areas but dissolves the water soluble component in the image areas. The potassium sulphide solution immediately decomposes the selenium photo-conductor at these areas. The starch or gum solution is replaced by acetic acid which reacts with a zinc oxide photoconductor. Examples are given of the use of an organic photoconductor layer which may be wiped off after image-wise softening with benzene. Many different forms of printing on litho plate may be produced by etching, hydrophilizing or electro-plating many different substrates such as plastic, wood, fabric, glass, brass, aluminium, zinc, copper (for printed circuits) and paper.
Patent GB-1174051-A (GB)
Title: Aminophenol Derivatives and Analgesic and Antipyretic Compositions
Inventor: BAXTER RICHARD ALLEN
IPC: C07C233/16
Filed: 1965-11-30
Abstract: 1,174,051. Pharmaceutical compositions, BEECHAM GROUP Ltd. and MONSANTO CHEMICALS Ltd. 25 Nov., 1966 [30 Nov., 1965], No. 50717/65. Heading A5B. [Also in Division C2] Pharmaceutical compositions having analgesic and anti-pyretic properties comprise a compound of the formula: wherein R 1  and R 2  are each C 1-4  alkyl, R 3  is H or C 1-4  alkyl and R, is CH 3 , together with a pharmaceutical carrier, in forms suitable for oral or parenteral administration. Preferred composition for oral administration may contain one or more additional pharmacologically active ingredients, for example acetylsalicylic acid, caffeine or codeine.