baber/WOPTO huggingface dataset:
Patent GB-2462748-A (GB)
Title: Security holograms
Inventor: FLYNN PATRICK FRANCIS
IPC: G02B30/27
Filed: 2008-05-07
Abstract: We describe methods of recording a holographic image onto holographic recording film, film bearing recorded holographic images, and apparatus for recording a holographic image onto film, in particular for security holograms. We thus describe a method of recording a holographic image onto holographic recording film (108), said holographic image comprising a 3D object (102) or a hologram of a three-dimensional (3D) object in conjunction with a multi-channel holographic image (106), the method comprising: forming a holographic recording stack by: positioning said holographic recording film (108) over a multichannel image generation device (106); positioning at least one three-dimensional (3D) object (102) under said multichannel image generation device; and providing a transparent window (106b) in said multichannel image generation device in a region above said at least one object (102); and then recording said holographic image in said holographic recording film by illuminating said stack through said holographic recording film with a laser light (110) of at least one wavelength.
Patent GB-2473509-A (GB)
Title: Forked weeding tool
Inventor: PANDEY REUBEN VRIJENDRA KUMAR MARCUS
IPC: A01B1/16
Filed: 2009-11-23
Abstract: A forked weeding tool comprises a shaft11handle12and a forked end10. The end of the handle distal from the forked end is roundedly convex so that the tool can be held by the handle and struck by a user. The forked end has two prongs which may each narrow to a point distal from the shaft. The angle between the prongs may be between 46 and 60°. The shaft may be made of a non ferrous, ceramic or steel material which is narrower at a point where ioins the forked end than it is where the shaft connects to the handle. The handle may have moulded ridges thereon.
Patent GB-796899-A (GB)
Title: Plasticized hydrolyzed ethylene vinyl ester polymer
IPC: B32B17/10
Filed: 1956-04-03
Abstract: A plastic composition suitable as a safety glass interlayer, comprises an 80 to 100 per cent hydrolysed interpolymer of ethylene and a vinyl ester of an organic carboxylic acid, e.g. vinyl acetate, in which the molar ratio of ethylene to vinyl ester is from 1.5 to 1 to 5 1, and 20 to 40 per cent by weight of a trialkyl phosphate, or a dialkyl ester of an aryl or alkyl phosphoric acid wherein the alkyl radicals contain from 4 to 12 carbon atoms.  Tributyl and trioctyl phosphates, dibutyl and dioctyl isobutenyl phosphonates, dibutyl, dioctyl, and diisobutyl benzene phosphonates and dihexyl hexane phosphonate are mentioned and they may be combined with cross-linking agents as described in Specification 796,573.  The compositions may be prepared by admixing in a common solvent, or by milling, may contain stabilizing agents, pigments and dyes, and be moulded, extruded, or cast from solution.  Specification 634,140 is referred to.
Patent GB-1460450-A (GB)
Title: Vapour cycle refrigeration systems
IPC: F25D23/00
Filed: 1973-03-01
Abstract: 1460450 Refrigerators, air conditioning G BARKER & CO (LEEDS) Ltd 23 Jan 1974 [1 March 1973] 10122/73 Headings F4H and F4V In a compression-condensation refrigeration system, water collected during operation or defrosting and to be disposed of is collected from an evaporator chamber 10 in a device 30 comprising a stack of vertically spaced shallow trays 34 arranged so that water over a predetermined amount in an upper tray cascades into a lower tray. The device is located in a stream of warm air drawn over the condenser 14 by a fan 20 whereby the water is evaporated. An additional tray 46 for catching excess water may be provided, beneath the device 30, and may include a heating coil 48 which is supplied with hot refrigerant by being connected between the compressor 16 and the condenser 14. The trays may be formed with drain holes in their inclined sides, the holes of adjacent plates being offset.
Patent GB-1283003-A (GB)
Title: Plug and socket members
IPC: H01R13/703
Filed: 1970-03-03
Abstract: 1283003 Two part couplings D AUSTICLAYTON and B MASE 19 April 1971 [3 March 1970] 10213/70 Heading H2E A plug and socket connector wherein each member comprises at least one contact piece which is arranged to contact the other when the plug is inserted into the socket, one of the members including a make and break contact in series with the contact piece thereof and operated by a permanent magnet to close the make and break contact on insertion of the plug. In the described embodiment, a pot magnet 23, which also provides the earth contact of a three-pin plug, attracts a steel disc 28 through a disc 27 which is the same material of the magnet and is connected to terminal 31a. The disc 28 is mounted on two phosphor-bronze springs each of which carries at its end a contact such as 30 connected to a terminal 31. The contact 30 connects with a slidable dumbell contact 26 to establish a through connection.
Patent GB-1312427-A (GB)
Title: Fastening assembly for use with a bolt
IPC: F16B43/00
Filed: 1972-03-06
Abstract: 1312427 Bolted joints AUTOMOBILES M BERLIET 6 March 1972 [25 March 1971] 10264/72 Heading F2H [Also in Division F1] To enable a bolt to bear tightly against two adjacent components 3, 4 at slightly different levels, a washer 5 beneath the bolt head 2 has a V-shaped recess across its underside, the inclined faces 6, 7 of which bear on respective wedge-shaped packing pieces 9, 10, the lower faces 13, 15 of the packing pieces bearing on respective ones of the components 3, 4. A groove 8 extends along the apex of the V recess. Each packing piece has a semi-circular cutout 11 to fit with clearance around the bolt shank 1, and a groove 16, 17 along its lower internal edge. As the bolt is tightened, the packing-pieces move laterally to take up the difference in level between the components 3, 4, which may be cylinder heads of a diesel engine.
Patent GB-1504314-A (GB)
Title: Electrostatic transducer
IPC: H01G7/02
Filed: 1975-03-12
Abstract: 1504314 Electrets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 March 1975 [15 March 1974] 10306/75 Heading H1M [Also in Division H4] An electrostatic transducer which may also act as a push-button switch uses electret material consisting of a copolymer of tetrafluoroethylene and perfluoro (alkylvinylether) in which the alkyl group contains from 1 to 5 carbon atoms. The material may be used in the form of a diaphragm, a vacuum deposited metal layer (e.g. of gold or nickel-chromium) being deposited thereon, and the diaphragm being spaced from a fixed electrode with the electret facing the fixed electrode. Alternatively a disc of the electret material may be placed against the fixed electrode, the diaphragm consisting of a metal membrane. In another arrangement two electret foils with a thin metal layer interposed form a diaphragm. This is disposed between two fixed electrodes.
Patent GB-1482437-A (GB)
Title: Method of making article of silicon nitride
IPC: B32B7/02
Filed: 1975-03-13
Abstract: 1482437 Silicon nitride articles FORD MOTOR CO Ltd 13 March 1975 [3 April 1974] 10461/75 Heading B5A  A rotor for a gas turbine engine made of silicon nitride portions of which are of different density is contructed in several stages. A first portion of the article is formed by shaping silicon particles into the desired form, e.g. by slip casting or injection moulding and nitriding; a release agent is applied to those surfaces of the first portion which require support during further fabrication of the article; applying an encapsulent which is readily formable but of relatively low strength to the same surfaces; converting the encapsulent to a high strength material, e.g. silicon converted to silicon nitride; hot press bonding a second portion of silicon nitride having a different density to the surface of the first portion which has no encapsulent thereon and machining the encapsulent to remove parts thereof, the removal of such parts freeing the other parts of the encapsulent to be removed as individual segments.
Patent GB-219086-A (GB)
Title: Improvements in means for attaching trailers to haulage tractors
IPC: B60D1/02
Filed: 1923-04-18
Abstract: 219,086. Sparrow, J. J. K., and Eagle Engineering Co., Ltd. April 18, 1923. Couplings for tractors. - A universal coupling is attached to the tractor at a lower level than the axle and is adapted to support part of the weight of the trailer. The jawed member 5 is attached to the tractor and carries a bolt 8 which is pivoted in the jaws by a removable pin. The bolt 8 forms a pivot for the head of a bolt 10 which passes through a sleeve secured to a bracket 13 carried by the front end of the trailer drawbar.
Patent GB-1422461-A (GB)
Title: Anodes for rotary anode- w-ray tubes
IPC: H01J35/10
Filed: 1973-03-05
Abstract: 1422461 Sintered tungsten anode SIEMENS AG 5 March 1973 [13 March 1972] 10616/73 Heading C7D [Also in Division H1] A composite anode for use in a rotary anode X-ray tube comprises a laminated and sinterpressed anode body, a first surface layer 12 of W alloy as the X-ray producing layer, a second layer 13 of pure W or a high W content W alloy containing #70 wt per cent W, and a third layer 14 of Mo alloy. Layer 12 may comprise 3 to 20 wt per cent of the W alloy (e.g. 5-15%) including at least one of Zr, Hf, Nb, Ta, Re, Os and Ir which promotes resistance to micro-fissuring and roughening. To increase the cold ductility and heat resistance, the second layer may include Nb, Ta or Zr. Re is also exemplified in Example 3. The third layer may be a Mo alloy with at least one of Ti, Zr, Hf, Nb, Ta, W and Re in amount 0.05-20 wt per cent (e.g. 2-10%). Layer thicknesses are given. Details of powder-metallurgical sintering preparations are given including compacting pressures (e.g. 1-8Mp/cm<SP>2</SP>), protective atmospheres (e.g. hydrogen or vacuo), and hot compacting or forging temperatures (e.g. 1400 to 1800‹C). Detailed Examples include sintering at 2000‹ to 2400‹C for one hour followed by one or more compaction steps at 1500 to 1700‹C. The sintered body, inductively heated in a protective gas, is exposed for a short time to air during forging. Sintering may be in 3 stages, presintering in hydrogen at 1000‹C for 30 mins and high sintering in vacuo at 2000 to 2400‹C for one hour. Specific material combinations for layers 12, 13 and 14 are also given. Other anode geometries are as in Figs. 2 and 3 (not shown).
Patent GB-905470-A (GB)
Title: Improvements in or relating to pneumatic tyres for automotive vehicles
IPC: B60C9/28
Filed: 1959-03-26
Abstract: 905,470. Pneumatic tyres. PIRELLI S.p.A. March 26, 1959 [July 29, 1958], No. 10619/59. Class 144 (2). A pneumatic tyre having a carcase 2, 3 constructed as described in Specification 905,469 incorporates a tread reinforcing, flexible, circircumferentially inextensible cincture structure comprising one or more plies 5 or 6 of parallel cords disposed with a cord angle of less than 20 degrees with the mid-circumferential plane of the tyre, and extending axially not greater than the tread width L. Where a single ply cincture is used the cords thereof cross those of the bead to bead carcase ply 2 in the crown portion of the tyre. Where more than one ply is used in the cincture they may be laid with their respective cords either crossing or parallel to each other. The preferred carcass is built from bias cut plies 2, 3 having a cord angle in the range 60-75 degrees which in the shaped carcass will provide a cord angle at the points of maximum width of the tyre section of between 65 and 80 degrees. The cincture is built into the tyre after shaping of the carcase from the flat band. The cincture may be incorporated in a detachable tread of single or multiple ring form.
Patent GB-908205-A (GB)
Title: Regenerated cellulose film and process for producing same
IPC: C08J7/043
Filed: 1961-03-23
Abstract: A non-fibrous regenerated cellulose film has a uniform small content as anchoring agent of an initially water-soluble, thermosetting polyamido-polyamine-epichlorohydrin reaction product in thermoset form.  The anchoring agent is conveniently made by reacting a water-soluble polyalkylene-polyamine with a water-soluble dicarboxylic acid to form a water-soluble cationic polyamido-polyamine, and reacting this with epichlorohydrin, the latter reaction being stopped short of gelation so that completion of the cross-linking reaction and conversion of the reaction product to insoluble gel form can take place after application of the anchoring agent to the film, when the film is heated and dried.  A proportion of the polyalkylene polyamine can be replaced with a water-soluble alkylene diol, e.g. glycol, 1,3-propane-diol, diethylene-glycol, and tetraethylene glycol. Specified dicarboxylic acids include succinic, adipic, pimelic, and azelaic.  Polyalkylene-polyamines mentioned include diethylenetriamine, tetraethylene pentamine, the propylenediamines, 3,31-iminobispropylamine, and, in general, any water-soluble polyamine having a functionality of at least two for carboxylic acids and a third functionality for epichlorohydrin as cross-linking agent.  The film may be impregnated with an aqueous solution of the reaction product as anchoring agent and dried at 150 DEG -250 DEG F. to thermostat the agent at least to an insoluble gel state.  The aqueous solution may also contain a plasticizer, suitably a polyhydric alcohol, e.g. glycerol, and desirably has a pH of at least 6, suitably 6-11.  A hydrophobic organic topcoat may be applied to at least one side of the treated film, and specified topcoats include nitrocellulose, cellulose acetate, methyl cellulose, ethyl cellulose, polyethylene, deacetylated chitin, vinyl chloride-vinylidene chloride copolymer, rubber, chlorinated rubber, rubber hydrochloride, butyl methacrylate, moisture-resistant lacquers, waxes, e.g. montan wax, beeswax, and carnauba wax, and printer's ink.  Topcoats may be applied from hot melt, organic solution or aqueous emulsion by roller-coating, spraying, or impregnation.  Specification 865,727 and U.S.A. Specification 2,573,956 are referred to.
Patent GB-1279219-A (GB)
Title: Improvements in or relating to a mosaic printing head
IPC: B41J2/285
Filed: 1971-04-22
Abstract: 1279219 Selective printing RENA BUROMASCHINENFABRIK GmbH & CO 22 April 1971 [24 April 1970] 10738/71 Heading B6F A mosaic printing head comprises a plurality of printing wires 9 each displaceable through a predetermined stroke by an individual magnet 3. The wires are guided at the printing end in a mouth piece guide member 12, and are connected at their other ends to individual armatures 7. The rear ends of the armatures contact a spherical surface 15 which determines the initial positions of the respective wires so that their strokes are substantially equal to one another. An intermediate guide member 10 is provided for the wires, and a gap 11 exists between the two guide members 10 and 12.
Patent GB-635452-A (GB)
Title: Improvements in and relating to junction, switch, terminal or like boxes for electric wiring systems
IPC: H02G3/06
Filed: 1948-04-19
Abstract: 635,452. Boxes for couplings. NEW DAY ELECTRICAL ACCESSORIES, Ltd., and DAVEY, L. E. W. C. N. April 19, 1948, No. 10743. [Class 38 (i)] [Also in Group XXVIII] Conduit is coupled to a box for socket outlets, switches and the like by semi-circular or like clamping-members 9 having lateral extensions 8, 10 on each limb respectively entering slots 7, 6 in L-shaped lugs 4, 3 secured on the wall of the box diametrically with respect to the conduit entry aperture. A bolt 11 passes through the extensions 8 to draw the clamping members together. Lug 3 has a number of slots so that by suitably placing the extensions 10, the clamping members may be adapted to different sizes of conduit. L-shaped brackets may be provided on the box having nuts floatingly mounted thereon for securing a cover in place.
Patent GB-1129344-A (GB)
Title: Electronic taximeter
IPC: G07B13/08
Filed: 1967-03-08
Abstract: 1,129,344. Taximeters; counters. KIENZLE APPARATE G.m.b.H. 8 March, 1967 [19 March, 1966], No. 10823/67. Headings G4A, G4D and G4T. An electronic taximeter includes two pulse generators emitting time and distance pulses, a binary counter totalling the distance pulses and those time pulses recurring at a faster rate than the distance pulses and a display counter driven by the binary counter to indicate the fare due. The distance pulses are applied to a flip-flop FF and the input of binary counter 16. The time pulses are generated by an unstable multivibrator and applied to the flip-flop FF and a gate T. If more than one time pulse occurs between two consecutive distance pulses, the first time pulse serves to switch flip-flop FF to state F2 and subsequent time pulses passed by gate T to the binary counter. The output of binary counter 16 is applied over line e4 to the input of a second binary counter 20 and a gate T 2 . On receiving simultaneous output pulses from both binary counters, the gate T 2  is opened whereby subsequent output pulses from binary counter 16 are applied to magnet 22 advancing display counter 23 from a minimum fare initially set thereon. Movement of the "for hire" flag places a potential on line v to present the counters according to the setting of switches Vb1 to Vb13 Output pulses from the counters are fed back over lines r 1  or r 2  to reset the counters according to the presence or absence of soldered links b1 to b 13 . Pulses appearing simultaneously on lines a 2  and a 3  open a gate T 3  to energize relay R. The latter operates contact k to short-circuit stage F7 of binary counter 16 and change the tariff. The distance pulses are derived from an apertured disc, driven from the gear-box 1, which co-operates with photo-electric means. The disc includes four circles of apertures corresponding to four tariffs, the appropriate tariff being selected by a switch 11. A stepping magnet 5, driven from the gear-box 1, operates counters 8, 9 indicating occupied mileage and total mileage. In a modification, the gear-box drives a drum bearing magnetic marks sensed by a reading head, Fig. 4 (not shown). The output from the reading head is applied to a counter (24). The output from counter (24) is fed to the flip-flop (FF) and counter (16). In addition, the counter (24) feeds a counter (25) driving stepping magnet (5) of the mileage counter. Each counter (24 or 25) is provided with four feedback circuits for resetting the counters, the appropriate feedback circuit being selected by a switch (S1-S4) according to the required tariff.
Patent GB-304675-A (GB)
Title: Improvements in or relating to valve operating mechanism
IPC: F24H9/20
Filed: 1928-04-12
Abstract: 304,675. Bastian-Morley Co., (Assignees of Ginther, H. E.). Jan. 24, 1928, [Convention date]. Block-form boilers. - A water heater comprises a tank 3 with flue 9 and a wall 3<a> enclosing the burner 11 above which is a spreader 8 communicating by a neck 7 with the bottom of the tank and through a pipe 8<b> with the top thereof. The burner supply through a pipe 12 is regulated by a thermostat 1 extending into the valve chamber 13.
Patent GB-454870-A (GB)
Title: Improvements in or relating to photographic developing
IPC: G03C5/305
Filed: 1935-04-08
Abstract: Anti - fogging agents in photographical development are obtained by condensing 2.5-thioketothiazolidine with a non-basic cyclic aldehyde or a derivative thereof.  The products are assigned the formul <FORM:0454870/IV/1> X being a cyclic radicle not containing a non-basic substituent. By treatment with sulphites they are converted into unknown decolourized substances having similar anti-fogging properties. In an example, 2.5-thioketothiazolidine is condensed with benzaldehyde in glacial acetic acid; the product is decolourized by adding sodium sulphite.  Other suitable aldehydes are nitrobenzaldehydes, salicylaldehydes, protocatechuic aldehydes, bromobenzaldehyde, anisaldehyde, heliotropine, benzaldehyde sulphonic acid, furfural.  The Specification as open to inspection under Sect. 91 relates to the condensation of thiothiazolidine or a homologue or derivative thereof with a non-basic cyclic aldehyde or derivative thereof, and to the treatment of such condensation products with sulphite solution.  The general formula assigned to the condensation products is <FORM:0454870/IV/2> wherein X stands for sulphur or selenium, Y for oxygen, sulphur or selenium and the residue Z for that of a non-basic aldehyde. Reference is also made to products wherein X and Y stand for tellurium.  In a further example, heliotropine is condensed with selenoketothiazolidine (prepared by condensing hydroselenic acid with ethylthiocyano acetate).  This subject-matter does not appear in the Specification as accepted.
Patent GB-725467-A (GB)
Title: Improvements in or relating to controlled deceleration device
Inventor: NORTHROP JOHN K
IPC: F41F3/04
Filed: 1953-04-21
Abstract: 725,467. Track brakes. NORTHROP AIRCRAFT, Inc. April 21, 1953, No. 10911/53. Class 103 (1) [Also in Group VI]. The invention relates to a decelerator, which although primarily intended for the purpose of .investigating the resistance of the human body to the effects of high or varied acceleration or deceleration rates, is also applicable to other uses, such as the testing of guided missiles and the braking of elevators. As shown in Figs. 1 and 2 the invention comprises a test carriage 1, suitable for accommodating human beings or dummies, which is mounted so as to be movable along a track rail 3 when propelled by means such as rocket motors 2. Suspended below the carriage 1 are two braking rails 7 of rectangular section and with tapered ends 8 so that they are guided by channels 9, Fig. 2, between a series of oppositely located brake shoes 10. Such brake shoes 10, as shown in Fig. 4, are arranged to be advanced towards the brake rails 7 by a brake cylinder 11 acting through a linkage comprising members 15, 18, 19. The carriage itself is caused to apply the brake mechanism by mounting cams 37 thereon which, by their movement deflect pivoted levers 30 to the right into an upright position, as shown dotted in Fig. 5. In so doing a bearing screw 35 is moved off a raised step 33 on a plate 32 on to a low surface 34 so that the plate may then rise sufficiently to enable the linkage. 15, 18, 19 to apply the shoes 10 to the brake bar 7. Fig. 6 shows the hydraulic system for applying pressure to the brake cylinders 11. This includes a reservoir 45 and pump 49 for generating pressure in the supply manifold 53 which has branches 55 thereon leading to the individual brake cylinders. The cylinders are arranged when pressurized to retain a certain volume 63 of air above the liquid level 61 so that they therefore act as accumulators and the pressure on the piston 62 drops only slowly when the piston is moved. Figs. 7 and 8 indicate how, by a suitable arrangement of the cam pairs 71, 72, 73, as shown in Fig. 9, the brake shoe pairs, of which there may be as many as 45, may be made to operate in such a sequence as to obtain deceleration-displacement relations of the kind shown in Fig. 8.
Patent GB-755348-A (GB)
Title: An improved selvedge guide for textile draw-frames and draw-boxes of combing machines
Inventor: HUNTER WILLIAM ALDRED
IPC: D01H13/04
Filed: 1954-04-14
Abstract: 755,348. Sliver guides for combing &c. machines. T.M.M. (RESEARCH), Ltd. March 31, 1955 [April 14, 1954], No. 11007/54. Class 120 (1). A selvedge guide for flat slivers passing through combing machine draw boxes or draw frames consists of a plate-like member comprising a transverse portion A and two depending legs B shaped to present rounded surfaces B<SP>1</SP> to the sliver. The portion A has a rounded surface A<SP>1</SP> also. The guide may rest on the sliver or upon a subjacent member, such as an underclearer and may be moulded or pressed from a sheet of thermosetting plastic material.