baber/WOPTO huggingface dataset:
Patent GB-1233910-A (GB)
IPC: B32B5/28
Filed: 1968-06-27
Abstract: 1,233,910. Laminates; moulding plastic sub-  stances. FARBENFABRIKEN BAYER A.G. 27 June, 1968 [4 July, 1967], No. 30684/68. Headings B5A and B5N. An article comprises a foam plastics 6 covered with an outer surface layer 1 and comprising adjacent to the outer surface layer, a zone of reinforced foam plastics, the reinforcement of which comprises at least one reinforcing insert, the or each insert being wholly embedded in the foam plastics, the or each insert comprising at least one mat 3 which is firmly united to at least one loose fibre structure 4, each mat being more compact than a loose fibre structure to which it is united, one insert being arranged so that a mat thereof is adjacent to the outer surface layer of the article. The foam plastics may be a polyurethane and may decrease in density towards the centre of the foam plastics. The outer surface layer may be of metal, glass fibrereinforced plastics material or a pre-preg. The reinforcing insert may be of glass fibres, synthetic resin fibres or filaments or of wire. The mat and the fibre structure may be united by needling, stitching or stapling or by the use of an adhesive. In a preferred embodiment, the insert comprises an electrostatically fibre-flocked coarse mesh mat. In a further embodiment, a voluminous non-woven fibrous structure is embedded in the part of the foam plastics not reinforced by the insert(s). In an example, a mould surface is coated with a gel coat of an epoxide resin to form an outer surface layer, a reinforcing insert consisting of two layers of woven glass fabric and two layers of bonded non-woven acrylic fibres (arranged alternatively) is applied to the gel coat and covered by a non- woven acrylic fibre structure, the mould then being charged with a polyurethane foam. The articles of the invention may be used in the production of vehicle bodies.
Patent GB-1238276-A (GB)
IPC: B29C65/82
Filed: 1969-10-24
Abstract: 1,238,276. Laminate materials. STAR STABILIMENTO ALIMENTARE S.p.A. 24 Oct., 1969 [28 Oct., 1968], No. 52199/68. Heading B5N. [Also in Divisions B1 and B8] A laminate for packaging material (see Division B8) comprises: (1) A propylene film opacized on one face with aluminium, the opacized face being bonded to a further polypropylene film by polyvinylidene chloride. (2) A polypropylene film bonded to the aluminized face of a polyethylene terephthalate film using polyvinylidene chloride. (3) Two outer layers of polypropylene film bonded to an inner layer of aluminium foil using a polyurethane. (4) Polypropylene film, polyester film, aluminium foil, and polyester film again, bonded together by a polyurethane. (5) Polypropylene/polyester/aluminium/polyester obtained by extruding polypropylene between the films. (6) Polyester/polypropylene bonded using a hot melt adhesive of an epoxy or epoxyphenol resin opacized by dyes, pigments or aluminium powder.
Patent GB-1238324-A (GB)
IPC: G03B9/10
Filed: 1968-08-01
Abstract: 1,238,324. Camera shutters. EASTMAN KODAK CO. Aug.1, 1968 [Aug. 5, 1967], No.36771/68. Heading G2A. A shutter blade 2, pivoted to a base-plate at 5, has a further member 3 attached to blade 2 itself by a pivot 4, the member 3 acting partially as an inertial member and partly as an additional shutter blade. Fig. 1 shows the elements in the rest or "shutter closed" position, and retained there by a spring 8. Spring 8 engages against a portion 3a of member 3, which portion has another bent-down portion 3b which can entrain blade 2. Thus the spring urges member 3 clockwise, which in turn engages and urges blade 2 also clockwise, into the Fig. 1 position. In this position, only part of the exposure aperture 10 is covered by blade 2, and part is covered by member 3, so that between them the aperture is completely covered. The shutter is actuated by a striking arm 9, which moves upwards (as shown on the drawings) to strike first a projection 3c of member 3 and then a projection 2a of blade 2. The impact thus causes both blade 2 and member 3 to rotate anti-clockwise and so uncover the aperture 10. This rotation is terminated when both strike against a fixed stop 7, as in Fig. 2. During this movement spring 8 has been tensioned, and this now urges members 2 and 3 to rotate clockwise back to the initial position of Fig. 1. Blade 2 reaches this position first, being arrested by a fixed stop 11. Member 3, however, continues rotating a little further, so preventing any rebound effect of blade 2 from stop 11. If a longer exposure time is required, stop 7 is moved farther away from pivots 4 and 5, so that it intercepts the path of blade 2 only, and not member 3, as they swing to the "open" position, Fig.3 (not shown). Thus member 3 continues to rotate past stop 7 until it is arrested by the accumulated tension in spring 8. It then returns clockwise under the restoring action of the spring, entraining blade 2 on the way.
Patent GB-1239740-A (GB)
IPC: H01B7/16
Filed: 1969-09-08
Abstract: 1,239,740. Cable insulation. STAUFFER-WACKER SILICONE CORP. 8 Sept., 1969 [4 Oct., 1968], No. 44310/69. Heading H1A. An electrical cable comprises a plurality 15 of individually-insulated metallic conductors embedded in a room-temperature cured silicone rubber 16, the silicone rubber being the reaction product of a hydroxyl-terminated organopolysiloxane, an organic silicate and a curing catalyst and being covered by a protective sheath 17. The organopolysiloxane may comprise units of -(R n SiO (4-n)/  2) - where the R groups, preferably methyl, are monovalent, optionally halogenated hydrocarbon radicals and n has an average value from 1À95 to 2À1. The silicone rubber may contain from 1 to 50 per cent by weight of the silicone rubber of a low density, cellular, particulate filler e.g. hollow glass spheres. Each conductor 15 may comprise a plurality of strands 10, a sealant layer 11 of lacquer or varnish, a silicone rubber layer 12, a fibrous glass braid 13 and a lacquer layer 14. The protective sheath 17 may be of P.T.F.E., glass fibre, poly. vinyl fluoride, polyethylene terephthalate, and a further protective sheath 18 is covered by a metallic sheath. An anti-flaming material may also be added to the silicone rubber. Examples are given of the type of R groups, organic silicates, fillers, curing catalysts, and materials for layers 18, 19. A method of making the cable comprises covering conductors 15 with the reaction mixture forming the silicone rubber and curing the reaction mixture at room temperature either before or after it is covered with a protective sheath to embed the conductors in the silicone rubber so formed.
Patent GB-1250941-A (GB)
IPC: C04B37/00
Filed: 1969-09-15
Abstract: 1,250,941. Ceramic seals. UNITED AIRCRAFT CORP. 15 Sept., 1969 [19 Sept., 1968], No. 45320/69. Heading B3V. [Also in Division C1] Articles are obtained by brazing together a plurality of separate ceramic components e.g. of BeO with a material containing a BeOYt 2 O 3  mixture as its principal component which is heated above its M.Pt.
Patent GB-1252143-A (GB)
IPC: G01G3/14
Filed: 1968-11-26
Abstract: 1,252,143. Measuring weight electrically. BRITISH HOVERCRAFT CORP. Ltd. Oct. 6, 1969 [Nov. 26, 1968], No.56020/68. Heading G1N. The weight of an aircraft is measured at a load bearing member 13, Fig. 1, between the fuselage 11 and undercarriage 12 by strain gauge resistors 16 bonded to an area 15 of reduced crosssection and connected to a bridge network. To compensate for changes in ambient temperature the bridge includes strain gauge resistors 22, Fig. 2, mounted on a cantilever arm 18 fixed to member 13 at one end by screws 19, with the tension in arm 18 adjustable by screw 21 so that the bridge can be initially balanced at a pre-selected weight. One such assembly is mounted in each undercarriage and the signals combined to determine the weight of the aircraft.
Patent GB-1257263-A (GB)
IPC: C12N11/00
Filed: 1969-03-28
Abstract: 1,257,263. Protein-containing composition. AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE. 28 March, 1969 [29 March, 1968; 24 Jan., 1969; 19 March, 1969], No. 16482/69. Heading A5B. [Also in Division C3] "Active proteins" such as enzymes, antigens, antibodies, allergens, hormones, living or dead, whole or disintegrated microorganisms or viruses are contacted with a carrier or support material in the presence of a cross-linking agent for the protein (which may, but need not, also react with the carrier) (see Division C3). The complex may be administered orally or by injection, or may be in the form of a film for application to the skin or mucoses.
Patent GB-1257501-A (GB)
IPC: H01B3/04
Filed: 1969-05-16
Abstract: 1,257,501. Laminates. SIEMENS A.G. 16 May, 1969 [22 Aug., 1968], No. 25222/69. Heading B6N. [Also in Divisions B1-B2, C3 and D1] Insulating tape to be used to form an insulating sleeve impregnated with thermosetting epoxide impregnating resin mixture, comprises a layer of inorganic material of high electrical breakdown strength, the layer being bound on one side to a flexible support and optionally on the other to a covering layer of a mixed binding agent and an accelerator capable of accelerating the hardening of a thermosetting epoxide impregnating resin mixture, the binding agent being a mixture of polymerizable adduct formed from an acid component containing at least one polymerizable double bond and an epoxy compound, and an organic peroxide capable of effecting at the curing temperature of the impregnating resin mixture the polymerization of unsaturated molecular regions of the binding agent and of the accelerator. The polymerizable adduct may be prepared from bonds having a molecular weight of 500-1000, the acid component may be an acid ester of a non-polymerizable dicarboxylic acid and a polymerizable monohydroxy compound, or of an unsaturated polymerizable dicarboxylic acid and a non- polymerizable monohydroxy compound or an acid ester of an unsaturated acid and a polymerizable monohydroxy compound. Examples of suitable esters are given as well as suitable epoxy compounds. An accelerator for the hardening of the impregnating resin mixture and of a mixture of the impregnating resin with a binding agent may be present, such as zinc salts of unsaturated polymerizable acid compounds. In an embodiment a flexible support 1 is formed of rice paper or a fabric or plastics foil and has applied thereto a layer 2 of mica flakes, mica paper or glass flakes. The layer 2 may be sealed by a layer 3 which may be of the same material as the support 1. Thus the layer 2 is bound to support 1 and to layer 3 by an accelerator-containing agent prepared from monoaryl maleate and an epoxide resin of epoxide number 0À56 to 0À58. The mixture contains 2% of dicumyl peroxide.
Patent GB-1266231-A (GB)
IPC: G02B5/30
Filed: 1969-05-15
Abstract: 1,266,231. Optical apparatus. KOMBINAT ROBOTRON VEB. May 15, 1969, No.24947/69. Heading G2J. An arrangement of systems of doubly refracting crystals for reducing aperture aberration with means for correcting the difference in path length between a bundle of ordinary rays and a bundle of extraordinary rays, is characterized in that added to any system 1 of doubly refracting crystals 2, 3 is a further identical system 5 turned through 90 degrees about the system axis 4 and an element 8 for rotating the plane of polarization of the bundles of rays through 90 degrees. As shown converging light incident on crystal 2 is split into a bundle of ordinary rays and a bundle of extraordinary rays, the difference in path lengths for a single plane of incidence being compensated for by setting the crystals at 90 degrees to each other. In order to reduce the deviation, caused by  aperture aberration, between the focal points of the paraxial rays for the bundles for different incident planes, the rays are first passed through the element 8 and then through the system 5 which comprises crystals 6, 7 set at 90 degrees to each other. The crystals may be in the form of plane parallel plates and the element 8 may be a halfwave plate. The arrangement may be used in digital light deflection systems for controlling optical data stores.
Patent GB-1267045-A (GB)
IPC: A47C19/00
Filed: 1969-06-10
Abstract: 1,267,045. Furniture joints; castors. HARRIS-HUB CO. Inc. June 10, 1969 [July 1, 1968], No.29367/69. Headings A4H and A4U. A bed frame comprises L-section side members 12 connected by at least two L-section cross members 26 (Fig.1 not shown), the ends of the cross members 26 being detachably secured to the side members 12 by interlocking means 32, each means 32 comprising an upwardly tapered male element 48 riveted at 56 to the vertical flange 30 of the cross member 26, and slideably interengaging a female element 34 of complementary taper riveted at 44 to the vertical flange 16 of the side member 12. The female element comprises a flat portion 36 and flanges 40 bent inwardly from upwardly converging side edges 38 thereof Fig. 6 (not shown). The male element comprises two plates 50 riveted together at 56, each comprising a flat portion 52, an upwardly tapered web 64 (Fig.6) and inclined flanges 66, 68. A castor 74, Fig. 5, and Fig. 2 (not shown) is releasably mounted in a passageway defined by co-operating recesses 70, 72 in portions 52 by a split retaining collar 76. Box spring unit confining and support means 18 are also riveted at 44 to the vertical flanges 16 of the side members 12.
Patent GB-1290288-A (GB)
IPC: F41A19/47
Filed: 1971-08-19
Abstract: 1290288 A safety device for a firing pin SCHWEIZERISCHE INDUSTRIE-GES 19 Aug 1971 [24 Aug 1970] 38870/71 Heading F3C A safety device for the firing pin 4 of a hand firearm has a spring-loaded safety pin 11 which, when in the safety position, engages into a recess 10 in the firing pin 4 and which has an extension 11a acted upon by a safety lever 12. A trigger bar 14 is movable by a trigger 9 and is connected to a firing hammer 8 and to the safety lever 12. A spring-loaded catch lever 13 is provided and engages in a first notch 8a in the firing hammer 8 when the latter is cocked. The safety lever 12 has a lug 12a which, when the safety lever 12 is pivoted to displace the safety pin 11, simultaneously pivots the catch lever 13 into a position which frees the firing hammer 8. As shown in Fig. 1 the catch lever 13 engages the notch 8a in the firing hammer 8 and the firing pin 4 is secured against axial movement by the safety pin 11. Actuation of the trigger 8 moves the trigger bar 14 and an extension 14a thereof pivots the firing hammer 8 into the cocked position, alternatively the hammer may be moved to the cocked position by the breech 5. The catch lever 13 then engages a notch 8b in the firing hammer 8. Further movement of the trigger 9 causes a projection 14b of the trigger bar 14 to engage behind the lug 12a of the safety lever 12 which is pivoted so that the safety pin 11 frees the firing pin 4. The lug 12a then engages the projection 13a on the catch lever 13 which is pivoted out of the notch 8b as shown in Fig. 2. The pivoting of the firing hammer 8 causes the shoulder 14a to contact a portion 8c of the firing hammer, the trigger bar 14 is released and the firing hammer is urged against the firing pin 4 by a striker spring 6. The firing hammer is cocked by the recoil of the breech 3, the catch lever 13 engages the notch 8b in the hammer 8 and the safety pin 11 locks the firing pin 4. Uncocking is effected by a lever 15, Figs. 3 and 4, which is pivoted at 17 and is urged by a spring (not shown). The lever 15, having a pin 18 thereon, engages a slot 19a in an unlocking disc 19, the latter being mounted on the same axis as the hammer 8 and lever 12. The disc 19 has a lug 19b which co-operates with the projection 13a on the lever 13 and has a stop 19c which engages the hammer 8. The disc 19 turns clockwise when the lever 15 turns anti-clockwise, the catch lever 13 is forced out of the notch 8b and the hammer is therefore freed. The hammer is caught by the stop 19c of the disc 19. Slow release of the lever 15 causes the catch lever 13 to engage the notch 8a Fig. 1 of the hammer 8. The safety pin 11 remains in engagement with the firing pin 4 during the uncocking operation.
Patent GB-1294871-A (GB)
IPC: B65B5/06
Filed: 1969-07-04
Abstract: 1294871 Packaging articles BRITISH TISSUES Ltd and CARRINGTON PACKAGING Ltd 5 Oct 1970 [4 July 1969 4 March 1970] 33833/69 and 10259/70 Heading B8C A machine for packaging a plurality of articles, e.g. foiled rolls simultaneously comprises a ram 10, means for feeding the articles at right angles to a take-off station 14 in the path of travel of the ram, sensing means to arrest the feed means of articles at the take-off station, means for locating a container 8 adjacent the take-off station, guide means 16 for guiding the articles from the take-off station into the container, a collator 4 for supplying articles to the feed means and comprising two or more movable tracks 39, 40 arranged one above the other for receiving articles, guide means 44 for achieving and maintaining the desired attitude of the articles, a stacking zone 3 comprising two or more stationary tracks 41, 42 aligned with the movable tracks and means causing operation of the feed means when sufficient articles are located in the stacking zone. As shown, twin packs of articles 3 pass to an infeed section 38 of the collator 4 from which the packs drop on to a separator 5 with their roll axes vertical. A senser means on the separator 5 causes the packs to continue in two superposed belt conveyor lines each time three packs pass the senser to form a stack of packs at the stacking zone 3. When the stack is complete a pusher 15 transfers the packs to the stake-off station 14 in the path of the packing ram 10. This operation is repeated until the take off station is full as determined by a sensing means on a plate 29 which causes retraction of the pusher until the packaging cycle is complete. The ram pushes the stack formation through a discharge box 16 into a bag previously located on fingers 20 after which the filled bag is passed manually to a sealing apparatus 9. The articles may be packaged in cartons instead of a bag. Operation of the machine is pneumatically controlled and the machine may be provided with safety controls including an emergency stop and stop buttons for the collater and a retract button for the ram.
Patent GB-1295615-A (GB)
IPC: G01N27/74
Filed: 1971-04-19
Abstract: 1295615 Paramagnetic gas analysis HARTMANN & BRAUN A G 19 April 1971 [11 April 1970] 25024/71 Heading G1N In a gas analyzer for measuring the concentration of paramagnetic gas constituents e.g. oxygen in a gas mixture two soft iron poles 2, 3 are ' inserted in the casing of a measuring chamber to define an air-gap 7 through which both test and comparison gases flow. The measuring chamber is defined by a cylindrical borehole in a brass plate 1 and having crescent shaped bulges 12, 13 connected via channels 10, 11 to the sources of  gas. The stepped ends of the borehole are closed by the poles 2, 3 having conical recesses 5, 6 filled with non-magnetic material and the pole shoes fit between the poles of A. C. energized magnet 4. Discharge channel 8, through the pole shoes 3 is traversed in operation by both test and comparison gases after passing through the inhomogeneous field in gap 7. Passageways 14, 15 are connected to a differential pressure meter e.g. temperature dependant bridge or diaphragm capacitor to give a reading of the differences in oxygen concentration in both gases or of the test gas.
Patent GB-1295970-A (GB)
IPC: H03K3/2893
Filed: 1970-05-20
Abstract: 1295970 Locating equi-potential curves R BRIERLEY 19 May 1971 [20 May 1970] 24379/70 Heading G1U [Also in Division H3] Equi-potential curves on a resistive sheet Fig. 1, are detected, point-by-point, by setting the potential of the curve to be located on a potentiometer and manually moving a probe over the surface until a switching device, which replaces the galvanometer of the prior art shown in Fig. 1, turns on. The switching device may either actuate an audible or visual indicator or cause a high voltage pulse to be applied to the probe thereby marking the resistive sheet. In one embodiment the potential between the probe and the potentiometer Fig. 1, is applied across terminals (e) and (d), Fig. 5, to a threshold circuit which, as the probe is moved from a low potential region towards a high potential region, switches 'on' causing a transistor TR2 to conduct when the probe crosses the equi-potential curve, i.e. when the potential difference from the probe to the potentiometer goes just positive (e.g. 50 mV.) This in turn causes a transistor TR4 to energize a relay whose contact moves to its left-hand position causing a a capacitor C1, previously charged to e.g. 600V, to discharge through the probe and thereby mark the sheet. In modifications (Figs. 6 and 7, not shown) transistor TR4 and the relay are replaced by an S.C.R., and the discharge pulse is coupled to the probe by a transformer thereby obviating the need for a separate high voltage supply to charge the storage capacitor C1.
Patent GB-1296215-A (GB)
IPC: F02K1/52
Filed: 1969-08-11
Abstract: 1296215 Jet propulsion nozzles DEFENCE SECRETARY OF STATE FOR 4 Aug 1970 [11 Aug 1969] 40079/69 Heading F1J The invention relates to multiple jet aircraft engine exhaust installations in which at least two engine exhaust nozzles are conjoined by associated structure. Means are provided for supplying fuel to be burned at a region immediately downstream of the joining aircraft structure. The nozzle outlet orifices are formed with their outlet planes convergent in the upstream direction. The installation shown comprises two engine exhaust nozzles 13 which are conjoined by aircraft structure 12 which terminates in a bluff surface 21. The outlet planes 14 of the nozzles are convergent in the upstream direction. The downstream surface of the structure 12 may be of concave form, Fig.3, and fuel is suppled through duct 17 to nozzles 19 at the surface 15, also to nozzles 18 at the upper and lower surfaces of the structure 12. Ignition devices 20 are provided. The burning of fuel in the region downstream of the surface 15 acts to eliminate "base drag" and may provide forward thrust. The downstream surface of the structure may be of variable form, variable between concave and convex forms or between concave and aero-foil form. The nozzle throats may be of variable area, for example the area may be varied by transverse slidingplates. The exhaust ducts downstream of the nozzle throats are formed in accordance with the two or three dimensional supersonic Prandtl-Meyer flow theory of supersonic expansion about a corner or line.
Patent GB-1297230-A (GB)
IPC: B65D88/12
Filed: 1971-08-16
Abstract: 1297230 ISO containers GERMANY MINISTRY OF TRANSPORT 16 Aug 1971 38378/71 Heading B8P An ISO container has a front door, a flap in the back wall, a roll-up or a foldable roof, and a storage compartment for the roof in the container above the flap. The roll-up roof may be made of plastic-coated aluminium slats interconnected by polyvinyl chloride and may slide on plastic-coated rails in supports on the side walls. The supports may seal against the inner side of the roof and have drainage passages. Alternatively the roof may comprise a heatinsulating rot-resistant fibre tarpaulin coated with polyurethane foam, and aluminium crosssupports therefor with plastic-coated ends. One or more flexible tanks may be secured to the side walls and have filling and discharging fittings adjacent the roof and/or the flap. Nails may be driven into the floor of the container to secure goods.