baber/WOPTO huggingface dataset:
Patent GB-1531031-A (GB)
Title: Process for the preparation of thermoplastic sheets or webs and products obtained thereby
IPC: B29C44/50
Filed: 1976-04-27
Abstract: 1531031 Extruded foamed sheets FORMICA INTERNATIONAL Ltd 25 April 1977 [27 April 1976] 17005/76 Heading C3C [Also in Division B5]  Thermoplastic foamed sheets or webs are made by (i) extruding a foamable mixture containing at least two thermoplastic polymers, the first being crystalline, of higher melting point than, and immiscible with, the second polymer, through the die of a screw extruder at a temperature equal to or greater than the melting point of the first polymer to form a foamed sheet or web which is (ii) stretched in the direction of extrusion as it leaves the die thereby rupturing most of the cells and the walls of the collapsed cells being elongated in the direction of stretch, (iii) compressing the extrudate while it remains plastic and (iv) cooling it. Steps (ii) and (iii) may be effected by passage of the extrudate through co-operating nip means, e.g. a pair of driven metal rollers. In the examples mixtures of polystyrene, polypropylene, polycarbonate, nylon 11 and/or polyethylene which were optionally in expandable form and/or pigmented together with optionally a blowing agent or antimony oxide were extruded, stretched and compressed to form foamed sheets or webs. The sheets may be sanded, polished and bonded to chipboard or used as wall-cladding.
Patent GB-1469188-A (GB)
Title: Educational kit for teaching a specific area of study
IPC: G09B5/06
Filed: 1974-04-18
Abstract: 1469188 Educational apparatus XEROX CORP 18 April 1974 [20 April 1973] 17038/74 Heading G5G Educational apparatus comprises a simulator board 1 having a plurality of jack sockets 11 identified by graphic indicia corresponding to questions related to the subject matter under study and posed by audiovisual instruction means (not shown); an equal number of jack sockets 12 associated with graphic indicia representing correct responses to said questions, each socket 11 being electrically connected to that socket 12 which defines the relative correct response; a first probe 14 for insertion into one of the sockets 11 in response to a given instruction identifying a particular question; a second probe 15 for insertion into one of the sockets 12 to select an aswer to the question; indicator lamps 17, 18; and a check switch 16 which, after the question has been answered, is depressed to complete a circuit either to energize either lamp 17 for a correct response, or lamp 18 for an incorrect response. The board 1 may be provided with a supply transformer, and the audiovisual instruction means may include audio tape recordings with associated slides or film strips. Automotive, electrical, aircraft and medical technology, the physical sciences and classical school subjects are mentioned, with others, as areas of study suitable for the practice of the invention.
Patent GB-322777-A (GB)
Title: Improvements in methods of distributing sound waves from telephones, gramophones and the like
IPC: H04R1/34
Filed: 1928-06-13
Abstract: 322,777. Marr, A. June 13, 1928. Loud-speakers. - The sound from a telephone, gramophone, &c. is emitted from a plurality of horns capable of simultaneous or independent adjustment for direction. The horns 9 are rotatably mounted in a T-piece 8, the stem of which is rotatably mounted on the sound conduit 7 of a sound-reproducer. Reference has been directed by the Comptroller to Specifications 688/00, 23742/10, 17028/11, and 254,339.
Patent GB-841563-A (GB)
Title: Improved apparatus for maintaining a predetermined spatial relationship between two objects
Inventor: ERDMAN DONALD CALVIN
IPC: G01S7/521
Filed: 1956-06-01
Abstract: 841,563. Automatic position control systems. ELECTROCIRCUITS Inc. June 1, 1956, No. 17085/56. Class 38 (4). In an apparatus for maintaining a predetermined spatial relationship between two objects not exceeding a few feet apart and one of which for example a camera is adjustably supported in space, two sources of ultrasonic waves affixed to the adjustable object and directed towards the other object are coupled to the other object through a fluid medium and a signal dependent on the time intervals of propagation from and reflection to each of the sources is used to control the relative positions of the objects. Ultrasonic transducers 66-68, Fig. 3, which may be of the quartz crystal or magneto-strictive type, are arranged in the manner shown in Fig. 4, on the face of the object 60 which is mounted in gymbals on a slidably mounted shaft 64, to direct pulses of ultrasonic energy of different frequencies at the other object in response to pulses from a modulator 70 applied through matching networks 71. The reflected pulses from the other object received by the three transducers which have different fundamental frequencies are applied with the pulses from the modulator to selective receivers 72-74 and thence to time discriminators 75-78 which each deliver a signal when the time interval between propagation and reflection differs from a predetermined interval. The signal from discriminator 78 drives the shaft 64 longitudinally through a servomotor 82 coupled to a pinion to maintain the desired spartial relationship, and the angular position of the object is the two sets of bearings of the gymbals is controlled by servomotors 86, 96 which respond respectively to the difference in output signals from discriminators 75 and 78, and the difference between the output of discriminator 76 and the average of the outputs from 75 and 78. Systems are described with reference to Figs. 1 and 2 (not shown), which relate to maintaining the spatial relationship only and turning the object about a single axis as well as maintaining the spatial relationship, respectively. Narrow crystals, lensed crystals or irised crystals may be used to give a desirable beam and any number of crystals may be employed. A computer may be used to produce a time varied signal so that the objects may be caused to approach or recede from each other in any computed path. Time delays may be introduced to prevent hunting.
Patent GB-497435-A (GB)
Title: Improvements in or relating to lace curtains
IPC: A47H13/16
Filed: 1937-06-22
Abstract: 497,435. Lace. PATCHOGUE - PLYMOUTH MILLS CORPORATION. June 22, 1937, No. 17334. Convention date, May 13. [Class 74 (i)] [Also in Group XIV] In adjustable lace curtains of the kind described in Specifications 424,984, [Group XIV], and 466,409, rows of elongated rodengaging eyelets 23, 29, 34 alternate with rows of relatively closely-spaced openings 26, 31, 35 symmetrical about the horizontal median line between two rows of eyelets, so that when the top portion is folded along the median line to bring the eyelets into registry for receiving the curtain rod a heading is formed having a indented top edge. The curtain is provided with a finished indented top edge 40 by folding on the median line of the uppermost row of openings 35 and stitching the hem thus formed. The side and bottom edges 43, 46 may be similarly finished.
Patent GB-276786-A (GB)
Title: Improvements in or relating to screws
IPC: F16B39/282
Filed: 1926-07-10
Abstract: 276,786. Wearham, J., and Adolph, W. E. L. July 10, 1926. Locking set-screws. - The head of a screw is hollowed out at A and has a peripheral groove C, the port B flexing and locking the screw when it is tightened up.
Patent GB-652484-A (GB)
Title: Mechanical toy simulating an animal trailing a vehicle on wheels
IPC: A63H11/10
Filed: 1948-06-28
Abstract: 652,484. Mechanical toys. SOC. ANON. INDUSTRIE ITALIANE E NIPPO-CINESI BORDOLI & CIE. June 28, 1948, No. 17355. Convention date, Nov. 18, 1946. [Class 132 (iii)] A toy horse &c. trailing a gig K is driven by a spring motor O which is located in the body of the horse and rotates the wheels R of the gig through a shaft T having end pinions P, P<SP>1</SP> in engagement with bevel gears C, C<SP>1</SP> on the motor shaft b and gig axle S respectively. The legs of the horse are also caused to swing by staggered eccentrics e on the two ends of the shaft b, said legs being maintained above ground level by a supporting and steering column F with wheel r adjustable by a lever I. As shown, the rear legs Q are fulcrummed at f, and each has a part t, adapted to be contacted by one of the eccentrics e and a slotted extension m to receive an extension n of the corresponding fore leg Q<SP>1</SP> fulcrummed at f<SP>1</SP>.
Patent GB-659994-A (GB)
Title: Improvements relating to closures for containers and to valves
IPC: B65D47/20
Filed: 1947-07-01
Abstract: 659,994. Stoppers. CHANEZ, J. P. ST.-A. DE. July 1, 1947, No. 17358. [Class 125(iii)] [Also in Group XXIX] A closure for collapsable tubes comprises an orificed cap 2 which is moved axially away from an orificed nozzle 1 to provide a clear path between the orifices round the edge of a resilient disc 4. In the closed position the disc 4 is flattened and a central boss or plug, which may be carried on a web or attached to the disc by a narrow neck or formed by a fold in the disc, may enter and seal the orifice 3 in the cap, Figs. 9-12 (not shown). Alternatively the disc has a flared skirt 6, Figs. 3-5, which is gripped between the cap and the nozzle and a raised central portion forming the equivalent of a boss (see also Figs. 6-8 and 14 (not shown) The edges of the disc may be cut away at intervals to allow the tube contents to pass more easily to the orifice in the cap.
Patent GB-1423023-A (GB)
Title: Method of neutralising acid components
IPC: B01D53/34
Filed: 1973-04-11
Abstract: 1423023 Removing acid gases from gas streams OSAKA YOGYO CO Ltd 14 Aug 1973 [29 Aug 1972 27 Oct 1972] 39285/75 Heading C1A Acid gases, e.g. SO 2 , HCl or oxides of nitrogen, are removed from gas streams by scrubbing with a suspension containing 5-50 parts by wt. of MgO and/or Mg(OH) 2  in 100 parts by wt. of water, the Mg compounds having a surface area of 6000-15,000 cm.<SP>2</SP>/gm. The suspension may also contain MgCO 3 , CaO and/or Ca(OH) 2 , and also an oxide of Na, P, K, V, Mn or Fe as an oxidizing catalyst.
Patent GB-915225-A (GB)
Title: Improvements in or relating to photographic cameras having automatic exposure control means
IPC: G03B7/085
Filed: 1960-05-18
Abstract: 915,225. Optical diaphragms. KODAK Ltd. May 18, 1960 [May 18, 1959], No. 17549/60. Class 97 (1). [Also in Group XL (b)] A camera diaphragm comprises a vane 16 having an elongated aperture 14, one end of which is tapered, the other end having a constant width large enough to give sufficient depth of focus yet small enough to avoid diffraction effects. A neutral density wedge 15 is provided in the constant width portion.
Patent GB-292476-A (GB)
Title: Improvements in three phase induction motors
IPC: H02K17/14
Filed: 1928-06-18
Abstract: 292,476. Surjaninoff, M. June 18, 1927, [Convention date]. Motors, controlling.-The stator primary winding coils of a three-phase induction motor comprises similar groups of non-overlapping coils placed side by side which are adapted to be connected together and to the supply in different ways so as to vary the number of poles and the angular velocity of the rotating field, the phase displacement between the currents flowing through consecutive groups of coils being 60‹. The inner and outer sides e<1>, e<2> of the coils are located in slots in the stator core d. Fig. 3 shows a winding having twelve. coils 1-3, 1<1>-3<1> connected to a three-phase supply I, II, III to produce a four pole field. Fig. 4 shows by means of the hatched portion the rotation of the field. The vector diagrams in Fig 4 show that the currents in successive are displace in phase by 60‹. Fig. 5 shows a two pole connection. According to the Specification as open to inspection under Sect. 91 (3) (a) the inner coil sides e' are located in slots in the stator core d, Fig. 2 (Cancelled), and the outer coil sides e<2> are spaced apart from the core. The coils may be delta or star connected. A stator winding is shown, Fig. 7 (Cancelled), in which the phase difference between currents in successive pairs of coils is 120‹. A controller is also shown for effecting the connections of Fig. 5 and Fig. 7 (Cancelled). This subject matter does not appear in the Specification as accepted.
Patent GB-783948-A (GB)
Title: Holder for needles for depilatory purposes
IPC: A61B18/14
Filed: 1956-06-07
Abstract: 783,948. Depilatory appliances. LAMBERT, P. June 7, 1956, No. 17594/56. Class 81 (2). A holder for a needle for depilatory purposes comprises a chuck 11, to take the needle 12, mounted on the end of a metal shank 6 which is carried in a socket 2 in an insulating handle 1, a connecting lead 4 being attached to the shank by a loop engaging a bifurcation, and passing through communicating bores 3, 5.
Patent GB-1170853-A (GB)
Title: View-Finders for Cameras of the Interchangeable Lens Type
IPC: G03B13/02
Filed: 1967-04-17
Abstract: 1,170,853. Viewfinders. NIPPON KOGAKU K.K. April 17, 1967 [April 15, 1966 (2)], No. 17618/67. Heading G2A. A camera viewfinder includes two masking plates 26, 27 which are both moved to adjust the size of the field of view in accordance with the change of focal length of the camera objective, one of the plates also being movable while the other is held stationary in order to compensate for parallax and variations in the angle of view. The plates 26, 27 define a rectangular field of view and are coupled together for movement towards and away from each other along a diagonal of the rectangle. The plate 26 is operated by a cam plate 54, which is fixed to a guide rod 52. Similarly the plate 27 is operated by a cam 55 which is fixed to a guide rod 53. The rods 52, 53 are slidably mounted in brackets on the camera body. The two ends of a rockable lever 56 co-operate with the cams 54, 55. The lever 56 is pivoted at the centre on a shaft 59 fixed to one end of a lever 58 which is rotatable about a fixed pivot 57. The cam 55 includes a lug 55" which is engaged by a pin (not shown). On adjustment of a dial to the focal length of the interchangeable objective fitted to the camera, said pin is operated through a mechanical linkage (not shown) to push the cam 55 towards the left in Fig. 4 and so pivot the lever 56 about the shaft 59. The plates 26, 27 are urged towards each other by springs (e.g. 63). As shown, clockwise rotation of the lever 56 permits the plates to move towards each other. Simultaneously with the adjustment of the plates 26, 27 an adjustment of the viewfinder lens system is effected to alter its magnifying power. When the camera is focused for close-up photography a mechanical linkage (not shown) which couples the lens focusing device with the lever 56 causes this lever to rotate about its point of contact with the cam 55 which is now held stationary by the pin of said first mechanical linkage. Then the cam 54 is moved and the plate 26 is moved relative to the plate 27.
Patent GB-1165184-A (GB)
Title: Improvements in or relating to Electric Power Sources
IPC: H01M50/469
Filed: 1966-07-28
Abstract: 1,165,184. Punching apparatus. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. 28 July, 1966 [4 March, 1966], No. 17720/69. Divided out of 1,165,183. Heading B4B. An apparatus, Fig. 1, for punching out electrode spacers and applying them to an electrode comprises a plurality of punches 12, a guide for the punches comprising a plate 16 with holes in it in which the punches are slideable, cutting dies 20 in the form of a plate member 18 having holes corresponding in shape and location to the punches and through which the punches are movable, a space 30 between the guide and dies for receiving sheet material and means 24 for positioning an electrode under the dies such that spacers punched from the sheet material may be pressed against the electrode by the punches. The dies may be circular and the guide 16 and dies 18 may be cooled by liquid entering at 28 and leaving at 29. The electrode positioning means may comprise a carrier 24 with clips 25 to hold the electrode in position, slideably mounted on table 21 which is supported on springs. The spacers may be stuck to the electrode by an adhesive activated by heat supplied by heating coil 27, e.g. a steam coil. Spacers may be applied to both sides of an electrode simultaneously by the apparatus illustrated in Fig. 5.
Patent GB-1076386-A (GB)
Title: Improvements in or relating to coffin containers
IPC: A61G17/00
Filed: 1965-04-27
Abstract: 1,076,386. Coffin container. R. TOUYET. April 27, 1965 [Aug. 12, 1964], No. 17751/65. Heading A5X. [Also in Division B8] A container for a coffin (as illustrated with reference to Fig. 3) comprises an open-topped box of synthetic resin, and a lid 7 of synthetic resin and formed with a continuous peripheral ridge 5 adapted to fit into a continuous upwardly facing groove 4 in the rim of the box, whereby an hermetic seal may be obtained. The lid preferably is provided with a continuous flange 8 which assists in forming the seal. The container is used for preserving coffins in tombs and vaults.
Patent GB-586650-A (GB)
Title: Process for the production of hydrogen-nitrogen mixtures
IPC: C01B3/02
Filed: 1944-09-18
Abstract: <PICT:0586650/III/1> Producer blast furnace, or similar high nitrogen content, low calorific value gases containing carbon monoxide are (1) partly treated with steam and catalyst in reactor 37 to oxidise the carbon monoxide and (2) partly used to produce hydrogen by the steam iron process in reactor 9, impurities being removed from the crude hydrogen and catalyzed gas either before or after mixing to produce nitrogen hydrogen mixtures.  Magnesia or iron oxide catalysts may be used at 320-560 DEG C. and at normal or increased pressures.  Spent gas from the iron process may be burnt to heat a refractory mass 10 used to preheat the steam.  The reducing gas may also be preheated. The catalyzed gas, crude hydrogen, and reactor 9 purge gases may be cooled by scrubbing in towers 41, 22 and 160 with water which may contain soda to remove hydrogen sulphide.  The catalyzed gas may be scrubbed with water under pressure in column 51 to remove carbon dioxide which is stripped from the liquor by an air blast in regenerator 56.  The gas is then mixed with hydrogen in the pressure vessel 66 and scrubbed at 100 atmos. pressure with ammoniacal copper liquor in column 70 to remove carbon monoxide and residual carbon dioxide.  The latter are stripped from the liquor in regenerator 75 and after washing to remove ammonia are recycled to gasholder 2 or the reactor 37. The ammoniacal liquor may be fortified and aerated in tank 92 before re-use.  Mixtures suitable for ammonia synthesis may be produced by suitable proportioning.  In an alternative form the catalyzed gas is scrubbed with an amine, e.g., an ethanolamine at normal or increased pressure to remove carbon dioxide.  In a further modification the gases are first mixed, scrubbed with amine and after preheating, e.g., with oil or diphenyl to 200-350 DEG C. contacted with a nickel or cobalt catalyst to convert the carbon oxides to methane.  Specification 547,155 is referred to.
Patent GB-1517372-A (GB)
Title: Polyvinyl chloride composition
IPC: C08L55/00
Filed: 1975-04-29
Abstract: 1517372 PVC compositions HOOKER CHEMICALS & PLASTICS CORP 29 April 1975 [29 April 1974] 17793/75 Heading C3P A PVC composition contains, per hundred parts of PVC, (a) 7À5-8À5 parts of plasticizer, (b) 10-14 parts of MBS or ABS impact modifier, (c) 1À5-2À1 parts processing aid, (d) 1À25-2 parts lubricant, (e) 0À8-1À1 parts of stabilizer and (f) 5-8 parts of stabilizer booster. Preferred are (a) dioctyl phthalate, (c) an acrylic polymer, e.g. a graft of methyl methacrylate on butadiene/styrene, (d) blend of olefinic monoglyceride and hydrogenated olein and tristearyl citrate, (e) mixed calcium, stannous and zinc stearates and (f) epoxidized soyabean oil, di- and tri-nonylphenyl phosphites and polyvinyl alcohol. Inorganic and organic pigments may also be present.
Patent GB-976764-A (GB)
Title: Improvements in or relating to extra high tension supply circuit arrangements
Inventor: KITCHIN HARRY DONALD
IPC: H02M3/338
Filed: 1962-05-09
Abstract: 976, 764. Automatic voltage control. MARCONI CO. Ltd. Feb. 5, 1963 [May 9, 1962], No. 17834/62. Heading G3R. An E.H.T. supply circuit arrangement comprises an oscillator including a transistor VT1 and transformer windings TR1 and TR2, a reservoir condenser C1 included in a circuit between the base of VT1 and a point of fixed potential, an output terminal 0 to which is applied an E. H.T. potential derived from the oscillator over transformer winding TR3 and associated rectifiers, a circuit including transformer winding TR4, potentiometer P and rectifier MR2 for deriving a direct voltage dependent on the E.H.T. potential, a gas discharge tube V1 supplied from the winding TR4 over a rectifier MR1 to provide a reference voltage, and a transistor VT2 which shunts the condenser C1 and to the base of which is applied the sum of the voltages from MR2 and V1. The arrangement is such that the current passed by transistor VT2 is controlled in dependence on variations in the EHT potential, whereby the bias on transistor VT1 is controlled in a sense to stabilize the E.H.T. output potential. In a modification (Fig. 2, not shown), the control of transistor VT2 is effected through an additional transistor, and a Zener diode constitutes the source of reference potential. In another modification (Fig. 3, not shown) the transistor VT2 is connected in series with the condenser C1 and the reference potential is derived from the operating potential source.
Patent GB-1210467-A (GB)
Title: Doll
IPC: A63H3/46
Filed: 1968-04-16
Abstract: 1,210,467. Dolls. SCHILDKROT A.G. 16 April, 1968 [14 April, 1967], No. 17948/68. Heading A6S. A doll has a trunk with four articulately connected limbs. The limbs are each formed by at least two articulately joined members, each member comprising at least one element that defines the external shape of the limb. Either the limbs are separately covered by an outer skin of elastic material or a common skin of elastic material can cover both the limbs and trunk. In the figure, a knee joint comprises two pivotally attached hemispheres, 2, 3 each having a projection 1, 4. "Shell" elements 6, 7 defining the shape of the upper leg 5 and elements 9, 10 defining the lower leg shape 8 are fixed to the projections 1, 4 by pins engaging apertures. The seams of the "shell" elements can be glued together or merely held together by their elastic skin 15. The skin is made by immersing the doll in latex or synthetic elastomer solutions, by an extrusion-blowing process from a processable thermoplastic styrene/butadiene rubber, or by moulding an elastomer.
Patent GB-278813-A (GB)
Title: Improvements relating to water tube boilers
IPC: F22B21/18
Filed: 1926-07-17
Abstract: 278,813. Crinks, P. F., and Vickers Boiler Co., Ltd. July 17, 1926. Cooling.-In a three-drum water-tube boiler, water walls for furnace wall protection are connected between an annular chamber 5 and a drum 12. Downoomers 25 communicate with headers 26 extending round the sides of the combustion chamber and connected by vertical tubes 27 with upper headers 28 leading to drum 12. The front wall tubes re-enter the annular chamber 7 and the rear tubes communi. cate directly with drum 12.