baber/WOPTO huggingface dataset:
Patent GB-1230329-A (GB)
IPC: G01S7/02
Filed: 1969-04-10
Abstract: 1,230,329. Aerials. TOKYO KEIKI SEIZOSHO K.K. 10 April, 1969 [11 April, 1968], No. 18470/69. Heading H4A. An omni-directional lens reflector comprises a spherical core portion and a plurality of spherical outer layers made of dielectric material, each of said layers having a relative permittivity K approximating to (2-r)/r, where r is a normalized radius of a layer relative to the outer radius of the lens. A means is provided on each spherical outer layer which is semireflective, e.g. it permits the passage of not less than 90% of waves incident at an angle of less than 70 degrees, and behaves similarly to a metal plate for waves incident at an angle exceeding 70 degrees. A ray entering such a lens is refracted in a substantially elliptical path and on leaving the lens is directed back towards its source. In the region of the lens where it is at substantially minimum distance from the centre thereof it grazes an aforesaid means, and its electric field component parallel to the tangent plane of the means undergoes a phase of approximately 180 degrees. If the incident ray is plane-polarized in a particular direction the emergent ray will be substantially polarized in the same direction, and a reflected wavefront will be substantially equi-phased. The core of the lens may be hollowed out, or be filled with a dielectric material, or be surrounded with a metallic foil. The semi-reflective means on the layers may consist of coatings of a mixture of a powdered metal (e.g. aluminium) in an adhesive binder (e.g. vinyl acetate emulsion, epoxy resin &c.) or metallic films may be formed on the layers, or metallic nets be mounted upon them.
Patent GB-1230337-A (GB)
IPC: D03D49/08
Filed: 1969-11-18
Abstract: 1,230,337. Weaving-loom calliper-type disc brakes. NORTH AMERICAN ROCKWELL CORP. 18 Nov., 1969 [2 Jan., 1969], No. 56262/69. Heading F2E. A mechanism for applying restraint to a yarn being unwound so as to maintain constant tension in the yarn prior to weaving in a loom, including a calliper-type disc brake and a mounting device for supporting the pad assembly, is characterized in that the pad assembly is laterally movable relative to the plane of the disc and pivotably movable about an axis parallel to the axis of the disc. As shown, a friction pad 26, Fig. 3, may be moved towards a disc 22 secured for rotation with a shaft 23, Fig. 1, by hydraulic or pneumatic pressure applied via a hose 28 to a housing 24. An opposing friction pad 27, Fig. 3, is not subject to fluid pressure. The pad-andhousings assembly 21 is secured by screws 30, 31 to a bracket 32, Fig. 2, having an upwardlyangled finger 33, Figs. 1 and 2, which is directed towards, but spaced from, an arm 34. The arm 34 is pivotally supported by a ball-joint 35 from a lug 36 screwed to the side 20 of a loom (not illustrated). The finger 33 and arm 34 are maintained in spaced relation by a flat spring 39 which is fastened to them by pairs of screws 40, 41 respectively. Pairs of reinforcing plates 42, 43, and 44, 45 respectively are provided, Fig. 2. An adjusting screw 47 threaded through an angular bracket 48, Fig. 3, screwed to the side 20 of the loom, bears against the underside of the bracket 32. Since ball-joint 35 is provided, bracket 32 may be raised and lowered to position the pad-and-housing assembly in relation to the disc 22. The bracket 32 may also pivot or move laterally on the end of screw 47 to follow lateral movements or imperfections of disc 22, because the bracket rests loosely on screw 47. The shaft 23 may be positively driven, e.g. by gearing in mesh with the yarn-unwinding apparatus.
Patent GB-1230522-A (GB)
IPC: A61M5/315
Filed: 1969-05-14
Abstract: 1,230,522. Syringes. TASMAN VACCINE LABORATORY Ltd. 14 May, 1969 [20 May, 1968], No. 24608/69. Heading A5R. A multiple dosage syringe comprises a barrel 10 having an outlet 11 at one end to which a hollow needle may be attached and a member 12 at the other end, a piston (15, Fig. 2) slidably mounted in the barrel 10, a rod 14 attached to the piston extending back through an opening in the member 12, a passageway 17 on the periphery of the opening communicating with the interior of the barrel 10, and a plurality of projections 16 spaced along the length of the rod at regular intervals according to a single dosage to be expelled from the syringe, each projection not being in the same longitudinal line along the rod 14 as the previous or following one. To operate the syringe it is first filled with a liquid and the first projection on the rod 14 aligned with the passageway 17, the piston (15) may be then pushed by the rod 14 until the following projection 16 on the rod 14 contacts the member 12 so stopping further forward movement of the rod 14 and piston (15), hence a measured dose is discharged from syringe. To deliver another dose the following projection is alinged with the passageway 17, by rotation of the rod 14 and the rod 14 pushed forward as before. The projections 16, which may be fins extending longitudinally of the rod, may be arranged evenly and alternatively in two parallel rows extending longitudinally along the rod and the rotation of the rod may be limited by a keyway on the member 12 in conjunction with a key bar 18 running along the rod 14. In an alternative embodiment the projections, which again may be fins as above, are arranged spirally at evenly spaced intervals around the rod, so that to expel successive doses from the syringe the rod must be rotated in one direction only.
Patent GB-1238756-A (GB)
IPC: H01H21/50
Filed: 1969-11-18
Abstract: 1,238,756. Latching and unlatching switches. G. MERTEN, and W. MERTEN, [trading as MERIT-WERK MERTEN & CO. K.G.]. 18 Nov., 1969 [29 Jan., 1969], No. 56393/69. Heading H1N. A switch comprises a movable part 1 and a fixed part 3, a finger 2 mounted on one part and a latch 4 mounted on the other part, either finger 2 being flexible or latch 4 being resiliently mounted, the arrangement being such that when movable part 1 is moved from a position O, through a position 5, to a position 6, finger 2 engages a first cam surface of latch 4, while when movable part 1 is moved from position 6 to position 5 finger 2 engages a second cam surface of latch 4 which has a shoulder 4a behind which finger 2 engages, shoulder 4a preventing movable part 1 being moved to position 6 unless it is first moved to position O. The switch is intended to be applied to an ignition switch for a motor vehicle in which position O may be the off position, position 5 the position where the ignition is switched on and position 6 a position where the starter is energized.
Patent GB-1239236-A (GB)
IPC: F16B5/02
Filed: 1968-10-24
Abstract: 1,239,236. Work holders. E. E. J. UNDERBERG & S. A. DOLD. 24 Oct., 1968 [25 Oct., 1967], No. 50594/68. Heading B3B. [Also in Division F2] A device for securing an element to a support comprises a member having one or more grooves 4 each provided with walls having thread-like profiles 5 over their entire lengths so that screws 6 of a thread diameter corresponding to the width of the grooves can be screwed in to the member at any desired position along the grooves whereby the heads of the screws can be arranged to clamp the element to the member. The grooves 4 are defined by rails or bars 2 which are either secured directly by screws 3 to a baseplate 1 or mounted on pedestals (7) (Figs. 2 and 4, not shown) on the base-plate. In an alternative embodiment (Fig. 3, not shown), parallel grooves may be intersected at right angles by a set of parallel grooves, the grooves being defined by rectangular elements (10) having thread-like profiles on their four faces.
Patent GB-1239269-A (GB)
IPC: G21C3/62
Filed: 1968-12-13
Abstract: 1,239,269. Nuclear fuel. GENERAL ELECTRIC CO. 13 Dec., 1968 [13 Dec., 1967], No. 59513/68. Heading G6C. A process for obtaining a fuel pellet from a powder consisting of the oxide of uranium or plutonium or a mixture of the oxides, comprises the steps of cold pressing a quantity of the powder to produce a self-supporting fragile preform, placing the preform in a die, applying a pressure in the range 4000-20,000 p.s.i. to crush the preform, simultaneously heating the preform in the range 800-1300 C., maintaining the pressure and temperature from 3-20 minutes, and removing the pellet from the die.
Patent GB-1239746-A (GB)
IPC: B60V1/16
Filed: 1967-08-07
Abstract: 1,239,746. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. 7 Aug., 1968 [7 Aug., 1967], No. 36173/67. Heading B7K. An air cushion vehicle has struts provided to hold the vehicle skirt away from the vehicle body and thus to increase the available supporting cushion area. The struts 9 are loosely connected to hinges 10 on the vehicle body 1, and are loosely connected at their outer ends to small diameter rods 15 attached by nylon lacing to the mid-upper portions of a two-part skirt of the kind dislcosed in Specification 1,141,601. The skirt comprises an upper membrane 7 and independently deflectable contiguous members 8 of the type disclosed in Specification 1,043,351. The members 8 are attached to the vehicle body 1 by ties 21. The upper edge of the membrane 7 is sealed to the vehicle by a membrane 17. In the inflated position shown the skirt is inflated by the cushion air 3, and the struts 9 are in a fully extended position determined by tiecords 19. When the cushion air is terminated the skirt collapses and the struts 9 fall to the position shown in dotted lines, allowing easy transportation of the vehicle by a trailer. Struts 9 incline downwards and pivot towards the vehicle body when the vehicle strikes an obstacle, minimizing skirt damage. The loose connection of struts 9 and rods 15 allow the skirt to curve around the vehicle. The support struts may be used with a skirt which comprises a single membrane, Fig. 4 (not shown). The skirt system may be attached to a load container, and a separate air supply, thereby allowing easy movement of the container, Fig. 5 (not shown). The support struts may be attached to the vehicle other than pivotally, for example slidably, and may be jack assisted. The strut retaining ties 19 may be replaced by tension or compression springs. The struts may extend inwardly of the vehicle body and be restrained by stops. The skirt and supports may be used around the whole vehicle periphery, or a part only.
Patent GB-1257221-A (GB)
IPC: C08F4/64
Filed: 1969-02-28
Abstract: 1,257,221. Trimerisation catalysts. TOA GOSEI CHEMICAL INDUSTRY CO. Ltd. 28 Feb., 1969 [28 Feb., 1968; 18 March, 1968; 8 July, 1968; 13 Aug., 1968; 22 Oct., 1968 (2)], No. 10913/69. Heading B1E. [Also in Division C5] Trimerisation catalysts comprise (1) an alkyl aluminium chloride and (2) a complex compound of (a) a titanium halide and (b) an organic compound selected from N-vinylpyrrolidone, a ketone, an aromatic aldehyde, #- cyanopropionaldehyde, a #-formylpropionate, a nitrile, a carboxylic acid ester, an aliphatic nitro compound and an aromatic nitro compound. The complex compound is preferably made by reacting TiCl 4  or TiBr 4  with the selected organic compound in a hydrocarbon solvent using a nitrogen atmosphere at temperatures below 60C. Comparative examples are described.
Patent GB-1264817-A (GB)
IPC: H01L43/08
Filed: 1969-07-17
Abstract: 1,264,817. Magneto-resistive devices. SIEMENS A.G. 17 July, 1969 [19 July, 1968], No. 36171/69. Heading H1K. A semi-conductor body 1 forming the resistive element of a magneto-resistor is bonded by a layer 2 of electrically insulating material to a ferromagnetic body 3, the bodies 1 and 3 being coterminous in all directions parallel to their main faces. An insulating support 5, e.g. of a ceramic, a ferrite or an oxide permanent magnet, is bonded to the ferromagnetic body 3, e.g. by an organic adhesive 4, and the semi-conductor body 1 may then be ground down to the desired thickness. Optionally, a further ferromagnetic body may be insulatedly bonded to the upper surface of the body 1 and the various layers may be selectively etched down to the support 5 to form a meander-like structure. The semiconductor body 1 may be of InAs or InSb containing acicular nickel antimonide inclusions. The ferromagnetic body 3 may be of Fe or Ni, or alloys thereof and may comprise a preformed foil or an evaporated layer which may be further built up by electrodeposition. Suitable adhesives 2 are evaporated SiO, optionally oxidized to form SiO 2 , glass solder, vitreous enamel or organic adhesives.
Patent GB-1267188-A (GB)
IPC: F27D15/02
Filed: 1970-12-17
Abstract: 1,267,188. Cooling granular material. HEAD WRIGHTSON & CO. Ltd. 17 Dec., 1970 [23 Dec., 1969], No. 60008/70. Headings F4B and F4U. Granular material, e.g. iron ore sinter, is cooled in apparatus comprising two concentrically arranged annular troughs 1, 2 on an annular base-plate 3 which revolves about a central vertical axis 4. Each trough is of inverted conical shape and is open at the top and bottom to permit continuous throughput of material and arranged to discharge on to the plate 3 from which it is continuously removed by a single fixed stripper blade (not shown). One side wall 13, 17 of each trough has louvres 14, 18 to admit cooling air into a respective trough from a shaft 9. As shown the shaft 9 has an annular passage 11 directing air to the wall 13 of the trough 1 and an inner central pipe connected by radial branch pipes 15 which extend through the trough 1 to an annular space 16 between adjacent side walls of the troughs for passage through louvres 18 of the trough 2. In a modification all the cooling air passes to the space 16 and both adjacent walls 17 have louvres therein.
Patent GB-1290521-A (GB)
IPC: G02B5/20
Filed: 1969-01-31
Abstract: 1290521 Optical filters UNITED KINGDOM ATOMIC ENERGY AUTHORITY 23 Jan 1970 [31 Jan 1969] 5306/69 Heading G2J An optical filter of the Christiansen type comprises a dispersion of particles of an optically transparent solid in a further optically transparent solid in intimate contact over the surfaces of said particles, the particles having a refractive index equal to that of the further solid at the centre wavelength of a waveband to be transmitted and an optical dispersion unequal to that of the further solid at the centre wavelength. Preferably the optical dispersions diverge so the wavelength changes from the centre wavelength. The particles are of an optical glass and are dispersed in a plastics material such as polystyrene or polyvinyl naphthalene. Several examples are given of suitable glass/plastics pairs for making such filters.
Patent GB-1295928-A (GB)
IPC: H01Q1/28
Filed: 1970-09-23
Abstract: 1295928 Satellites DORNIER SYSTEM GmbH 23 Sept 1970 [4 Dec 1969] 45337/70 Heading B7W [Also in Division H4] A satellite for supporting an aerial 2 comprises two parts 1, 5 relatively rotatable about an axis a motor to provide the rotation, and torque producing means 7, 15 to assist starting of the motor. The aerial is mounted on the spinning satellite by an arm 3 and its motion relative to the earth is stopped by a motor which is a stepper motor started by inertia when weights 15 secured to a drum 6 are released and extend into an open portion 15 by centrifugal force. There may be more than one layer of weights, Fig. 3, arranged asymmetrically about the axis of rotation, a shaft 8. The layers may be released one after the other. The means to start the motor may be a spring, Figs. 4, 5 (not shown), or jet propulsion units (20), Figs. 6, 7 (not shown), mounted on the ends of two arms diametrically oppositely mounted on the shaft 8.
Patent GB-1305494-A (GB)
IPC: A22B7/00
Filed: 1971-05-21
Abstract: 1305494 Endless conveyers for animals CINCINNATI BUTCHER'S SUPPLY CO 21 May 1971 16351/71 Heading B8A An animal is engaged with a bleeding conveyer 54 by being walked at 8 into engagement between opposed endless belt conveyers 16, 18. These restrain the animal so that it can easily be stunned by a device 62, and can be secured by a shackle and chain 52 to the conveyer 54. The conveyers 16, 18, are mounted at 44, 44, so as to have a portion (equal to the length of an animal) which is cantilevered out beyond the supports. A grid 72 restrains the animals from jumping upwards from out of engagement with the conveyers 16, 18. The conveyers 16, 18, feed the animal to a shoot 66 from which it is conveyed upwardly and away, by the conveyer 54.
Patent GB-1306881-A (GB)
Title: Cooking vessels
IPC: A47J36/38
Filed: 1970-06-17
Abstract: 1306881 Cooking vessels M S FOULSTONE 13 Sept 1971 [17 June 1970] 29332/70 Heading A4A A cooking vessel 1 comprises a container 3  with an open top, and a lid 4 mounted for unlimited sliding movement within the container and having a peripheral upstanding wall 10 which has an annular clearance from the internal surface of the container to allow the passage of hot air or vapour and which acts as a vapour condensing surface when the vessel is in use. The receptacle 11 formed by the wall 10 may contain different amounts of ballast such as water, to vary the weight of the lid. The weight is varied so that the lid rests lightly on the food 12 to be cooked. The base 5 of the lid is thermally insulated. An insulating air space which is ventilated to the atmosphere through a vent 9 in the handle 8 of the lid is formed by the upper wall 7 and the lower wall 6 of the hollow base. Alternatively solid heat-insulation may be incorporated in the base. The lid may be of plastics or metal. The ballast in the receptacle 11 causes condensation of escaping vapour minimizing loss of liquid from the food. The lid may be used to strain the liquid in which it has been cooked.
Patent GB-1310060-A (GB)
Title: Nylon panels
IPC: B29C44/08
Filed: 1970-01-16
Abstract: 1310060 Foamed nylon panels IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Dec 1970 [16 Jan 1970] 60437/70 Divided out of 1300722 Heading C3C A nylon panel of thickness 2À5 to 25 mm., with an average density of 0À2 to 0À9 gm. per c.c. and an impact strength (S) in Joules to the weight per unit area (W) in gm. per square cm. being such that (log  10 S)/W > 2, comprises a core of a composition containing foamed "nylon material" integral with a non-porous skin of "nylon material" in which the foam has an average pore diameter of less than 1À5 mm. and is free from pores greater than 3 mm. in diameter and the skin is from 0-2 to 3 mm. thick. By "nylon material" is meant thermoplastic polymers of M.Wt. above 10,000 and Viscat softening point 150‹ to 300‹ obtained essentially by the condensation of diamines with dicarboxylic acids and/or self-condensation of amino acids or lactams wherein the polymers contain units of the formulµ -NH-R-NH-CO-R<SP>1</SP>-CO- and/or -CO-R<SP>11</SP>-NH-, where R and R<SP>1</SP> may be straight or branched chain alkylene radicals of 4 to 13 carbon atoms, m- or pphenylene radicals or 1,4-cyclohexylene radicals or additionally R<SP>1</SP> may represent a direct linkage, and R<SP>11</SP> may represent a straight chain alkylene radical of 3 to 5 carbon atoms or a 1,4- cyclohexylene radical. Specified "nylon materials" are (1) a copolymer from hexamethylene diamine adipate and hexamethylene diamine isophthalate, nylon 6 (polycaprolactam), nylon 6.12 (polyhexamethylenedodecandiamide), nylon 6.6 (polyhexamethyleneadipamide), nylon 6.10 (polyhexamethylenedecandiamide) and nylon 6.6/6/6.10 (a copolymer from hexamethylenediamine adipate caprolactam and hexamethylenediamine decandoic acid salt). The skin and core may be different nylons. The "nylon material" may be mixed with pigments, fillers, fibres such as of glass, plasticizers, mould release agents, and surface active agents which preserve the fine dispersion of gas bubbles arising from the blowing agent during transition to a rigid foam. The panels are made by injecting into a panel forming cavity mould of adjustable thickness a sufficient amount of nylon material to form the desired skin and before the central portion of the material has set injecting into this material, a charge of nylon material and particular blowing agents and adjusting the mould so that the nylon material and foamable nylon material fill the mould before any foaming occurs despite the foamable material being at a temperature at or above the activating temperature of the blowing agent and thereafter enlarge the mould to the desired thickness, permit the material to foam and fill the enlarged mould and allow the materials in the mould to set. An extensive list of blowing agents is given in the Specification. Those exemplified are orthophosphoric acid and sodium oxalate, poly-(ethylene oxalate), and imidazole-4,5-dicarboxylic acid. The panels may be used as, or form part of trays, boxes, tanks, articles of furniture, interior car trims and car body panels.
Patent GB-1312718-A (GB)
Title: Combination flow control valve and electric switch
IPC: H01H35/26
Filed: 1970-04-15
Abstract: 1312718 Valves RANCO CONTROLS Ltd 19 April 1971 [15 April 1970] 18076/70 Heading F2V [Also in Division H1] A combined gas valve and electric switch includes a bellows 26 connected at 27 to a temperature sensing bulb such that, in response to a predetermined rise in temperature, the bellows rocks lever 22 clockwise about pivot 23 against spring 21 to disengage screw 41 on the lever from leaf spring 40, continued movement against spring 21 then taking place until toggle spring 46 causes snap clockwise movement of lever 44 which closes the switch via lever 52 and opens the valve via lever 47. When the temperature subsequently falls, lever 22 pivots counterclockwise but the reverse toggle action does not take place until after the screw 41 on lever 42 has engaged the end of leaf spring 40. The additional force exerted by spring 40 assists in defining the cut-out point, and this point is adjustable independently of the cut-in point, which is determined solely by spring 21, by rotation of shaft 42 to displace button 43 axially. Cam 56 serves simply to cause beam 18 to engage lever 22 at 38 to define the offposition. In a modification rising temperature could cause the valve to close and the switch to open.
Patent GB-1315549-A (GB)
Title: Continuous rotary drum vacuum filter
IPC: B01D33/09
Filed: 1970-06-09
Abstract: 1315549 Rotary drum filter URALSKY ZAVOD KHIMICHESKOGO MASCHINOSTREENIA 9 June 1970 27774/70 Heading B1D A rotary drum vacuum filter whose drum surface is divided into cells 2 has a rotary valve with a channel 17 whereby each cell 2b which has just risen clear of suspension being filtered is connected to the cell 2a which has just entered the suspension, so that filtrate flows from cell 2b to cell 2a, from which it is expelled in the reverse direction through the filtering surface thereof as the cell reaches position 2c, where one or both of its ducts 9, 10 are connected by the valve to a compressed air supply. This leaves a comparatively large sector w of the drum available for filtration proper. The valve also connects the leading duct 9 of cell 2b to atmosphere and the following duct 10 of cell 2a to vacuum to assist filling of cell 2a. Cell 2d is shown with suction applied only to its leading duct 9 to ensure the cell is full of filtrate when it reaches position 2b. The amount of filtrate used in reverse flow cleaning may be increased by pockets (12) (Figs. 3, 5, 6, not shown) extending-the volume of each cell.
Patent GB-1318223-A (GB)
Title: Organotin nitriles and their use as pesticides
IPC: C07F7/22
Filed: 1970-12-08
Abstract: 1318223 Organotin compounds TENNECO CHEMICALS Inc 8 Dec 1970 58282/70 Heading C2J [Also in Division C3] An organotin compound of the formula in which R is an alkyl group of 4 to 8 carbon atoms or a phenyl group, one X is a halogen atom and the other X is a hydrogen or halogen atom, is prepared by reacting a phenol of the formula or the alkali metal salt thereof with a compound in which Y is a hydroxyl group, or is a chlorine atom when the alkali metal salt of the phenol is used. Tri-n-butyl (2-cyano-4,6-dichlorophenoxy)tin is prepared in Example 1.