baber/WOPTO huggingface dataset:
Patent GB-1238723-A (GB)
IPC: G03D15/02
Filed: 1968-08-14
Abstract: 1,238,723. Drying. RICOH K.K. 14 Aug., 1968 [23 Aug., 1967], No. 38807/68. Heading F4G. [Also in Divisions G2 and H5] An image-wise exposed heat-sensitive paper sheet or web 28 is developed by passing it at constant speed around roller 1 situated in a bed of particulate material 11 (e.g. aluminium particles, stainless steel or glass beads or steel balls) heated by thermostatically controlled sheathed heaters 12, 12a, 12b. The paper is held against roller 1 by guide wires 3 tensioned by springs 7. The bed is surrounded by a chamber 14 of heat-insulating material 15. The paper is fed to roller by rollers 19, 20 and guide plate 21 and removed from roller 1 by rollers 22,23 and guide plate 24. Cover 27 is filled with heat insulating material. The speed of roller 1 is adjustable.
Patent GB-1239366-A (GB)
IPC: F02K3/105
Filed: 1970-02-26
Abstract: 1,239,366. Gas turbine by-pass jet engines. GENERAL MOTORS CORP. Feb. 26, 1970 [April 16, 1969], No. 9263/90. Headings F1G and F1J. The invention relates to a gas turbine jet engine of the by-pass type in which combustion equipment is provided in the by-pass duct, a heat exchanger also being disposed in the by-pass duct upstream of the duct burners, there being means for bleeding hot air from the engine compressor and passing it through the heat exchanger so as to cool the bleed air and to pre-heat the by-pass air, the cooled bleed air being utilized for turbine cooling; combustion in the duct burners is improved by the pre-heating of the by-pass air. The engine shown comprises LP compressor 9, HP compressor 15, combustion equipment 17, HP turbine 18 and LP turbine 19. A portion of air from the LP compressor 9 passes through by-pass duct 10 discharging through outlet 21 into the chamber 23; the turbine exhaust gases discharge through outlet 22 into chamber 23, the combined flows discharging through propulsion nozzle 7. Combustion equipment in the form of duct burners 30 is disposed in the by-pass duct 10. Reheat equipment 27, 29 is disposed in the outlet duct from the turbines 18, 19. A heat exchanger 35 is disposed in the by-pass duct and comprises a series of longitudinally-extending tubes 45 extending between an inlet header 37 and an outlet header 39. Air from the HP compressor is tapped off at 43 and passed through duct 42 to the inlet header 37. The air is cooled in flowing through the tubes 45 and the cooled air passes from the outlet header 39 through the ducts 46, 49 and is subsequently utilized for cooling purposes not shown. The by-pass air flowing through the duct 10 is pre-heated indirectly by the heat exchanger 35 and the combustion at the duct burners 30 is thereby improved.
Patent GB-1250241-A (GB)
IPC: H02M1/08
Filed: 1969-03-27
Abstract: 1,250,241. Control systems for consumption apparatus. SOUTH LONDON ELECTRICAL EQUIPMENT CO. Ltd. 6 Feb., 1970 [27 March, 1969], No. 16139/69. Addition to 1,213,300. Heading H2H. In a control circuit for firing high power thyristors and disclosed and claimed in parent Specification, the operation of the thyristors is enhanced at angles below 30 degrees and above 150 degrees in each half cycle of the mains supply by full wave rectification of the supply by diodes D 1 -D 4 , the rectified voltage being used to charge a capacitor C 2  which, when the thyristor SCR 1  is triggered by a firing pulse, discharges through the thyristor SCR 1  into the gate electrode of the associated high power thyristor thus ensuring an adequate trigger voltage on the gate electrode during periods when the instantaneous value of the applied alternating voltage is low. A transistor TR 1  is used to provide triggering pulses in alternate half cycles of the supply.
Patent GB-1250267-A (GB)
IPC: H03L1/04
Filed: 1969-11-20
Abstract: 1,250,267. Constant temperature ovens. ALBISWERK ZURICH A.G. 20 Nov., 1969 [21 Nov., 1968], No. 56744/69. Heading H5H. [Also in Division H1] In a constant temperature enclosure, an insulating casing 17, 18 encloses a double walled cup shaped heat conducting container 1 whose walls are heated by a heat source e.g. transistor 5, controlled by a thermostat e.g. a thermistor circuit, the hollow space between the walls 3, 4 of container 1 is filled with heat insulation 2, the cup shaped container 1 is closed by a heat conducting plate 6 on which the heat source 5 is mounted and a cup shaped flanged lid 7 filled with heat insulating material 8 rests with its flange 13 on the plate 6. The thermal insulation is polyurethane foam. Depending from plate 6 is a metal bridge piece 12 which carries some of the parts of a temperature regulating amplifier 9 of which transistor 5 is the last stage, the thermistor 16 being secured to the inner side of plate 6. A printed circuit board 10c carrying connections for regulating amplifier 9 is secured to bridge piece 12 and passes through a slot 15 in container 1 and casing 18. The transistor 5 is controlled to provide a constant temperature in the enclosure which may contain a crystal oscillator or the cold junctions of thermocouples.
Patent GB-1252354-A (GB)
IPC: C08K5/29
Filed: 1969-10-15
Abstract: 1,252,354. Stabilized fats and waxes. MOBAY CHEMICAL CO. 15 Oct., 1969 [23 Oct., 1968], No. 50635/69. Headings C5C and C5W. [Also in Division C3] Naturally occurring esters e.g. oils and waxes may be stabilized against hydrolysis by incorporating therein an N-substituted iminocarbonate which suitably has the formula:- wherein R, R 7 , R 8  and R 9  are aliphatic, cycloaliphatic, aromatic or heterocyclic radicals, R 1 , R 2 , R 3 , R 4 , R 5  and R 6  are hydrogen atoms, aliphatic, cycloaliphatic, aromatic or heterocyclic radicals, m is 0 or a positive integer, and x and y are integers of from 1 to 4. The wax may be japan, carnauba, spermaceti or beeswax.
Patent GB-1256706-A (GB)
IPC: H01M4/88
Filed: 1968-04-25
Abstract: 1,256,706. Gas electrodes. DURHAM CHEMICALS Ltd. and ENERGY CONVERSION Ltd. 24 April, 1969 [25 April, 1968], No 19739/68. Heading H1B. An electrode for an electric cell which comprises a layer of foraminous hydrophobic material and an adjacent layer of catalytic material is characterized in that either (a) the gas-diffusion through the hydrophobic layer is such that the limiting current of the electrode is less than 50% of the maximum which could have been achieved from the catalytic material or (b) the permeability of the hydrophobic layer is 0À1 x 10<SP>-6</SP> to 9À0 x 10<SP>-6</SP> cc./sec./cm.<SP>2</SP>/mm. H 2 O. The hydrophobic layer may be P.T.F.E. tape which is compressed to reduce its permeability and optionally impregnated with polystyrene or poly(butyl methacrylate). The electrode may be used in a fuel cell or a battery of metal/oxygen or metal/air cells.
Patent GB-1257906-A (GB)
IPC: H01P5/18
Filed: 1970-07-10
Abstract: 1,257,906. Microwave directional couplers. INTERNATIONAL BUSINESS MACHINES CORP. 10 July, 1970 [27 Aug., 1969], No. 33506/70. Heading H1W. A microwave directional coupler comprises stepped impedance transmission lines 11, 12 having a plurality of cascaded #/4 (where # is the wavelength of the centre frequency) coupling sections Z1-Z9 in which the slopes of the edges of the lines in the transition regions L between adjacent coupling sections are obliquely inclined relative to each other. The transmission lines are shown as strips which may be coated one on each side of a dielectric sheet 16 supported between spaced ground plane members 13 and 14 by dielectric sheets 15 and 17. The width of each transition region L is preferably about 0À148 #/4 and both the width of each strip section S and the distance WC of offset between strips in the coupling sections increase incrementally and symmetrically at either side of the central section Z5 such that the edges of each portion of line in the transition region L interconnecting the parallel coupling sections are inclined relative to one another. The dielectric members 15-17 are preferably polyolefine but the conductors may be held in spaced relation with air as the dielectric medium. The ends of conductor 12 are connected to coaxial connectors 18, 19 while conductor 11 has a coaxial connector at one end and at the other end is connected to a terminating resistor 21 via a central conductive tap or terminal 21a. A pair of annular conductive spring-plates 23, 24 hold the resistor in a suitably shaped cylindrical cavity between ground conductors 13 and 14. The assembly 11-17 is supported within conductive shielding members of which side members 27, 28 are shown in Fig. 2.
Patent GB-1265106-A (GB)
IPC: C07C51/10
Filed: 1970-07-31
Abstract: 1,265,106. Alkali metal malonates. RHONE POULENC S.A. 31 July, 1970 [4 Aug., 1969; 28 May, 1970], No. 37216/70. Heading C2C. Alkali metal malonates of the formula where R is a hydrogen atom or an alkyl C 1-6  radical and M and M<SP>1</SP> each represent an alkali metal atom at least one of M and M<SP>1</SP> being a potassium atom, are prepared by reacting carbon monoxide with a mixture of an alkali metal salt of an acid of the formula and an alkali metal carbonate, the alkali metal of at least one of the organic acid salt and the carbonate being potassium. Preferably the pressure of the carbon monoxide is 20 to 500 bars, the molar ratio of the alkali metal salt to the alkali metal carbonate is 0À1 : 1 to 10: 1, and the temperature is 200‹ to 400‹ C.
Patent GB-1265681-A (GB)
IPC: D04H11/00
Filed: 1969-03-18
Abstract: 1,265,681. Flock-coated products. CONSOLIDATED PAPER (BAHAMAS) Ltd. 18 March, 1969 [27 March, 1968; 12 Sept., 1968], No. 14023/69. Heading B2E. A carpet-like material comprises (1) a composite base member including a lower facing sheet of paperboard, an upper corrugated sheet of paperboard secured to said lower facing sheet forming a plurality of flutes thereon, and a flock coating of fibrous material secured to said base member to form a pile-like coating thereon or (2), a lower liner, a corrugated medium attached thereto and an upper liner secured to said corrugated medium, a flock coating of fibrous material being adhesively secured to at least a portion of the surface of the upper liner to form a pile-like surface thereon. In (2) the upper liner may be embossed with a pattern of protuberances or may be perforated. The flutes formed by the underside of the corrugations and the base layer are optionally filled with a reinforcing material, such as polystyrene, polyurethanes or sawdust in combination with an adhesive or a plastics material such a latex. The flock coating may be applied to the valleys between the corrugations. The corrugated sheet and the lower sheet may be reinforced by impregnation with a modified phenol and/or urea formaldehyde resin. The corrugations may be inclined at an angle to the surface of the sheet. In (1) the flock may be attached to a further layer e.g. of extruded plastics, which may be perforated attached to the tops of the corrugations. Suitable flock is of cotton, rayon, cellulose or nylon.
Patent GB-1267031-A (GB)
IPC: D01D5/42
Filed: 1968-03-04
Abstract: 1,267,031. Film fibrillation. SMITH & NEPHEW RESEARCH Ltd. 4 March, 1969 [4 March, 1968], No. 10426/68. Heading B5B. [Also in Divisions B6 and D1] A process for the production of filaments comprises contacting a continuous or interrupted flat sheet of molten deformable polymeric material with at least one roller having continuous circumferential grooves to form a sheet of the material having parallel continuous ribs, orienting the material by stretching the sheet in a direction parallel to the ribs, and splitting the material between the ribs to form filaments, each filament corresponding to one of the ribs. The flat sheet may be formed by extrusion, and may be divided into tapes before, during or after embossing or stretching. The polymer may be a cold-drawing polymer, for example a polyamide, a polyester, or a polyolefine such as polypropylene. The flat sheet may be embossed by passing it through a nip between a single circumferentially grooved roller and a smooth roller, or between two circumferentially grooved rollers whose grooves are located coincidentally and which are in pressure contact. The ribbed sheet, while located on one of the rollers, may be passed through a second nip formed with another patterned roller, and may subsequently be passed between two rollers impressing an occasional longitudinal subdividing groove on the sheet. The ribbed sheet may be divided into tapes by circumferential roller ridges. The roller grooves may be triangular, rectangular or semicircular in cross-sectional shape, and these may be from 10 to 500 grooves per inch of roller length. The ridges between, or the bottoms of, the roller grooves may be patterned, and the rollers may have shallow grooves transverse to the circumferential grooves. One of the rollers may be hotter than the other roller or rollers. The ribbed sheet may be from 0À001 to 0À02 inch thick overall, and the material between the ribs may have a thickness less than 50% of the overall sheet thickness, and may be less than 25 microns thick. The ribbed sheet or tape may be stretched up to 20 times its original length, and may be stretched without lateral restraint or with complete lateral restraint. The filaments may be split apart by twisting the stretched ribbed sheet or tape, or by passing a stretched ribbed tape through an air Venturi passage or over grooved godet rollers positioned at angles to one another. The material may be in the form of a polymer blend. The extruded molten sheet may be coated on one or both sides by a preformed, preferably non-colddrawable, polymer sheet before being embossed. The production from polypropylene of filaments and multi-filamentary yarn is exemplified.
Patent GB-1289406-A (GB)
IPC: C10L1/16
Filed: 1970-11-16
Abstract: 1289406 Wells &c CONTINENTAL OIL CO 16 Nov 1970 [22 Dec 1969] 54423/70 Heading E1F [Also in Division C5] The friction loss in a hydrocarbon base hydraulic fracturing fluid during the injection thereof into a subterranean formation is reduced by the addition of 5-500 p.p.m. of a homo- or co-polymer of a C 6 -C 30  alpha-olefin.
Patent GB-1289608-A (GB)
IPC: B60T11/20
Filed: 1970-05-21
Abstract: 1289608 Master cylinders FIAT SpA and P S BALDWIN 21 May 1970 [30 May 1969] 24711/70 Heading F2F A master cylinder has a piston 8 actuated by a rod engaging in a recess 9 whereby a flange 19 of the piston, engages a tubular member 21, the latter and piston 8 moving together so that a seal 26 on the member 21 abuts a face 27 of a plug 24 to disconnect a reservoir 5 from a blind bore 10 within the piston, the latter then continuing to move forward to compress hydraulic fluid in the bore 10 and pass it to an outlet 34 by way of a port 32. Piston 8 is provided with a seal 18 and a scraper ring 16, and member 21 with a compression seal 29 interposed between a washer 30 acted upon by a spring 31 and a radial shoulder 28 of member 21. In a further embodiment two pistons separated by a spring are provided with a respective tubular member to supply hydraulic fluid from two reservoirs to two separate outputs by means of a single actuator.
Patent GB-1295810-A (GB)
IPC: F16K11/085
Filed: 1971-04-19
Abstract: 1295810 Valves ZENTRA ALBERT BURKLE KG 19 April 1971 [9 May 1970] 26157/71 Heading F2V A multiway rotatable plug cock for the mixing or distribution of liquids in heating or airconditioning installations or the like, has inlet and outlet ports 13-16, and a plug 17 which divides the valve chamber into two flow spaces 20, 21 on opposite sides of the plug. The plug has face parts 26, 27 which are spring-urged radially to engage the chamber wall, and at least one end sealing disc 23. At least one of the ports is divisible by the face part 26 or 27 into two flow passages which are adjustable in opposite senses by rotation of the plug. As shown, there are four ports which are preferably all of the same size. The control edges of the face parts have a profiled shape (42, 46), Fig. 6 (not shown), which differs on opposite sides. Sealing discs 23 on opposite ends of the plug are in two parts with a diametral tongue and groove joint 34. These discs rotate with the plug. Various parts of the valve including the housing 10, may be made in plastics material.
Patent GB-1295824-A (GB)
IPC: G03D3/13
Filed: 1970-01-15
Abstract: 1295824 Rollers EASTMAN KODAK CO 15 Jan 1970 [15 Jan 1969] 1955/70 Heading F2U [Also in Division B8] A web transporting roller 10 of non-resilient material has an axle 14 and is provided with a resilient rib 24, e.g. of foam rubber, which projects from the roller surface 22 and extends along at least the major part of the length of the roller parallel to the axle 14. The rib may merge smoothly with the roller surface, may be formed from a flattened tube, or may be resiliently mounted in a slot provided with a plurality of springs (Figs. 2 to 4, not shown). The Specification states that the use of such a roller in  web transporting apparatus associated, for  example, with photographic processing operations (Fig. 5, not shown), facilitates the transportation of slippery webs which might not track properly in conventional apparatus.
Patent GB-1296760-A (GB)
IPC: A47G23/02
Filed: 1970-11-26
Abstract: 1296760 Strip for holding containers H BLANC 26 Nov 1970 [2 Dec 1969] 56213/70 Heading A4A [Also in Division B8] A strip 16 for holding flanged containers 12a, b and 14a, b, c has on its top side transversely spaced beads 16a, b running along the strip for engaging the underside of the container flanges 20. The beads may be arranged in pairs having longitudinal gaps to prevent the containers sliding. The strip may be made in embossed steel and when the containers are in position the strip cannot be seen.
Patent GB-1301722-A (GB)
IPC: B28D1/00
Filed: 1970-07-20
Abstract: 1301722 Cleaning bricks W L W DRAY 19 Get 1971 [20 July 1970] 35004/70 Heading B5E A machine for cleaning used bricks comprises conveyer means to move a brick past a cleaning station, at least one scraper element disposed at the cleaning station, and means to resiliently urge the element or elements into pressure engagement with a face of the brick. As described, the machine may be in the form of a trailer having a base frame 10 mounted on wheels 1]. The frame supports a housing 17 having bearings 12 for a pair of shafts 13 each of which has a pair of sprockets 14 carrying chains 16 and having cross-bars 18 provided with fingers 18a extending through slots 20 in the upper surface 20a of the housing 17 for conveying the bricks past two cleaning stations arranged side-by-side. The stations are carried on an extension 25 of the frame and each station has an upper scraping assembly 29 and opposed side scraper assemblies 30<SP>1</SP>, 31 for removing mortar, cement and the like from the bricks. Each side scraper assembly consists of a frame 40 having cross-bars 41 and each cross-bar has a plurality of scraper elements 43 those on one bar being staggered in relation to those on adjacent bars, the elements projecting progressively from one bar to the next. The inner assemblies 30 are fixed while the outer assemblies 31 are urged inwardly by adjustable springs 35a. The upper scraper assemblies 29 are of similar construction and acted upon by adjustable springs 35. In operation, the chains are driven by a reduction gearing 19 from a motor 15 so that the fingers 18a carry the bricks from a shoot 59 along a guide 52 past the scraper assemblies so that the opposed faces and top surface are cleaned, the bricks then passing along exit guides 53. In other embodiments, one or more than two cleaning stations may be provided, and each scraper assembly may consist of a combination of fixed scraper bars 43 and freely rotatable toothed cylindrical scraper members 57, and 34, so only the latter which comprise a number of bicycle chain sprocket wheels 55, Fig. 6, and spacers 56 freely rotatable on a shaft 54, the axis of which may be inclined.
Patent GB-1301906-A (GB)
IPC: D04H3/04
Filed: 1970-06-09
Abstract: 1301906 Forming articles by winding DEFENCE SECRETARY OF STATE FOR 16 June 1971 [9 June 1970] 27738/70 Heading B8G [Also in Division D1] A resin-fibre composite is produced by winding fibres on to a former then impregnating with resin (or by impregnating the fibres before winding), deforming the wound shape whilst still on the former, winding further fibre material and setting the resin whilst the winding is in its deformed shape. Preferably, rows of carbon, boron or glass fibres are passed through a solution of an epoxy resin or through a molten thermoplastic and then passed through sets of rollers to remove excess resin before being wound. In the embodiment, a cylindrical winding 18 is produced about mandrel 16 then four pins 19 are mounted to form a square centred upon the axis 17 of the mandrel, on which is wound a square winding 20. This is deformed under the action of inwardly moved jaws 21, so that the portions which were the centre of the sides of the square abut the central winding, pins 19 being allowed to move inwardly. A final exterior cylindrical winding 23 is then wound upon the outer surface of the jaws 21, the whole unit cured in an oven and jaws 21 and mandrel 16 removed to yield a pulley wheel.
Patent GB-1305202-A (GB)
IPC: A43D8/24
Filed: 1969-02-07
Abstract: 1305202 Printing and embossing process BRITISH UNITED SHOE MACHINERY CO Ltd 6 Feb 1970 [7 Feb 1969] 6699/69 Headings B6C and B6J Shoe and boot uppers are decorated by temporarily fixing each one to a pallet which is subjected to a printing operation before being moved to an embossing station. Each upper may be glued to a pallet the glue being subsequently used in the manufacture of the shoe or boot. During the embossing step the upper may be subjected to a H.F. field. The printing ink used may be a pigmented solution of a polyurethane elastomer. The workpiece may be of leather, poromeric material or P.V.C. coated fabric.
Patent GB-1311482-A (GB)
Title: Production of scanning coils
IPC: H01J9/236
Filed: 1969-06-20
Abstract: 1311482 Making scanning coils EMI Ltd 9 June 1970 [20 June 1969] 31209/69 Heading B3A [Also in Division H1] In a method of making a scanning coil wherein an electrically conductive foil is rolled about an axis, and a section, curved about an axis perpendicular to the axis of the roll, is severed from the roll, the foil is replaced by a superimposed pair of such foils 4, 5 which are mutually insulated. An insulating mandrel 1, which may be of rectangular cross-section, is provided with grooves 2, 3 into which either a conductive rod or a tightly rolled end portion of the foil is inserted. The rods, when provided, are attached to the foils, which have insulating material 6, 7, sandwiched between them. The material 6, 7 may be anodized aluminium foil. The roll so formed is converted into a solid block by providing an adhesive during rolling. A hole 8 is bored in the block and a cylindrical cut is made to form external surfaces 9, 10, to produce two pairs of parallel connected-scanning coils. Four terminals are available corresponding to the inner and outer ends of the foils and the coils may be made receptive to push-pull drive currents. Alternatively semi-cylindrical portions may be cut from the block by a cylindrical cutter to form saddle coils. The coils may be secured to the mandrel by adhesive, thereby eliminating the need for grooves. Coils flared in at least one dimension or having varying thickness of insulation between successive turns may also be made.
Patent GB-1321700-A (GB)
Title: Fire retardant polymeric compositions
IPC: C08K5/03
Filed: 1970-12-16
Abstract: 1321700 Laminates BERK Ltd 24 Nov 1971 [16 Dec 1970] 59690/70 Heading B5N [Also in Divisions C2 and C3] Laminates may be prepared from synthetic resin compositions containing as flame retardants brominated terphenyls and optionally antimony oxide. In Example 3 a glass fibre mat is placed in a polyester film lined mould, unsaturated polyester resin containing benzoyl peroxide in dialkyl phthalate plasticizer as curing agent and brominated terphenyl and antimony oxide as fire retardants is distributed over the mat, a further glass fibre mat is laid over the resin and the assembly is cured under heat and pressure.