baber/WOPTO huggingface dataset:
Patent GB-701736-A (GB)
Title: Improvements in or relating to electric pulse code modulation communication systems
Inventor: TREADWELL CYRIL GORDON
IPC: H03M1/00
Filed: 1952-07-18
Abstract: 701,736. Multiplex pulse code signalling; valve gating circuits. STANDARD TELEPHONES & CABLES, Ltd. July 18, 1952, No. 18216/52. Addition to 669,617. Classes 40 (5) and 40 (6) Two coders of the type described in the parent Specification are fed with amplitude modulated pulses of the odd and even numbered channels respectively of a time division multiplex system. A 40-channel system is described using a sixelement simple addition binary code, the code element recurrence frequency being 2 Mc/s, and channel 40 carries a single synchronizing pulse of duration greater than a code pulse. Refinements to improve the accuracy of the coder and decoder are described, Figs. 3, 5 (not shown), and a clipper/ amplifier stage for the former, Fig. 6 (not shown). A circuit for producing amplitude modulated channel signal samples comprises a pentode 46 to the suppressor grid of which is applied the channel signal from terminal 9. The valve is gated on when a 3.5 microsecond channel gating pulse is applied through circuit 52, 53 to the control grid and at the same time a 0.5 microsecond pulse on lead 3 blocks the shunt rectifier 54. Specifications 587,939 and 635,472 are referred to.
Patent GB-658740-A (GB)
Title: Improvements in or relating to sheet material for use in photography
IPC: G03C8/42
Filed: 1946-06-18
Abstract: 658,740. Photographic liquid-containing sheet material. STEVENS, A. H. (International Polaroid Corporation). June 18, 1946, No. 18249. [Class 98 (ii)] A layer of liquid processing agent including a film-forming substance in solution or dispersion and a photographic reagent is contained between at least two other layers of material impervious to the liquid and forming an envelope therefor, one of the two other layers being removable to expose the liquid for contact with a photosensitive layer to be processed. Preferably the photographic reagent is a developer such as a silver halide developer and the liquid processing agent includes a substance such as hypo for forming a silver complex with unexposed silver halide. Preferably, also, the liquid layer is adapted to form a solid film on drying and the envelope layer which is not removable is such as to provide a white opaque background for the film formed, or the liquid layer may incorporate a pigment such as titanium dioxide or aluminiun flake to provide a similar background. On removing the removable envelope layer and placing the liquid layer in contact with an exposed but undeveloped silver halide photographic emulsion the liquid is absorbed by the emulsion and causes development, the remainder, by reason of abstraction of liquid, becomes solid and forms a film, and the complex-forming substance reacts with unexposed silver halide to form a soluble silver complex which is reduced to silver by the developer, to form a positive image in such film. As shown in Fig. 1 the sheet material has a paper base 10 and envelope 12, the latter comprising a pair of liquidretaining walls 16, 18 of which 18 is removable to expose the liquid layer 14. The retaining walls may be made of polythene or ethyl cellulose; in a preferred form they are of metal foil as of lead or silver 16a, 18a with inner alkali-resistant coatings 16b, 18b as of ethyl cellulose or a mixture of this with paraffin, or other materials such as polyvinyl acetals. The liquid 14 may be aqueous and may contain sodium alginate, gelatine, starch, sodium carboxymethyl cellulose or hydroxyethyl cellulose as film-forming substance, together with a normal developer including hydroquinone, and the silver complex-forming substance (hypo). In the construction of Fig. 2 the liquid layer 14 is formed into separate areas divided by seals 20 for use with latent images in separate frames of strip film; and in that of Fig. 3 the sheet material 10, 12 may carry also a photosensitive layer 24 mounted on transparent film base 22. Figs. 4, 5 (not shown) indicate, diagrammatically, camera devices wherein the sheet materials of Figs. 1, 2 and that of Fig. 3, respectively, may be employed and may furnish immediate positives.
Patent GB-1184048-A (GB)
Title: Improvements in or relating to Colour Image Projectors
IPC: H04N5/74
Filed: 1967-04-20
Abstract: 1,184,048. Colour television. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 April, 1967 [22 April, 1966], No. 18255/67. Heading H4F. In a colour image projection system a light beam is plane polarized 6, Fig. 1, and divided into three beams, red, green and blue, by two dichroic mirrors 21 and 41 which are modulated with low definition in respect of polarization as a function of the respective chrominance signals in electro-optic devices 2, 3 and 4, the modulated beams are then recombined by means of dichroic mirrors 24 and 44 and further modulated with high definition as a function of the luminance signal in electro-optic device 5 and the resulting colour image is viewed via analyser 7. The electro-optic devices are described in Specification 1,160,923 and each comprises a cathode-ray tube having a face plate of electrooptical material which is scanned by the electron beam, the video signal being applied to a control electrode. If device 5 is fed with the broadband luminance signal Y the devices 2, 3 and 4 may be fed with the narrow-band   signals (R<SP>1</SP>/Y<SP>1</SP>),(G<SP>1</SP>/Y<SP>1</SP>) and (B<SP>1</SP>/Y<SP>1</SP>) or R<SP>1</SP>-Y<SP>1</SP>, G<SP>1</SP>-Y<SP>1</SP> and B<SP>1</SP>-Y<SP>1</SP>. Alternatively devices 2, 3 and 4 may be fed with the narrow-band signals R<SP>1</SP>, G<SP>1</SP> and B<SP>1</SP> and the luminance device with the signal Y<SP>11</SP> containing only the high frequencies (Y=Y<SP>1</SP>+Y<SP>11</SP>). Due to the low definition of the colour images superimposition of the image fields of devices 2, 3 and 4 with that of device 5 by means of an adjustable lens systems is simplified. The devices or tubes 2, 3, 4 and 5 may be arranged in series, Fig. 4, each preceded by dichroic mirrors 25, 35 and 45 which may be incorporated in the tubes and which pass respectively red, green and blue light, this light being reflected from the electrooptic crystal plates in the tubes. Due to the memory of the crystal plates sequential transmission of the colour information may be displayed. Detailed optical arrangements of the projection system are described with reference to Figs. 2 and 5 (not shown). The light beam may be modulated first by the luminance tube and then by the chrominance tubes.
Patent GB-146368-A (GB)
Title: Machine for cutting meat
IPC: B26D1/143
Filed: 1920-07-02
Abstract: 146,368. Lensvelt, C. J. July 3, 1919, [Convention date]. Cutting slices in succession.-In a meat-slicing machine of the type having a vertical revolving disk knife and a reciprocating meat-carrier, the bearing bracket 2 for the knife is bent as shown to give clearance for a plate which may be placed on an adjustable support 14 to receive slices as they are cut. The bracket 2 may be adjusted about its centre 6 to ensure that a worn knife may still cut right through the meat. The knife may be driven by a chain 8 passing over guiderollers 10, 11.
Patent GB-530464-A (GB)
Title: Improvements in or relating to variable transmission gearing for prepayment meters and the like
IPC: G07F15/08
Filed: 1939-06-23
Abstract: 530,464. Prepayment mechanism for meters; variable-speed gearing. PATENTVERWERTUNGS-GES. HERMES. June 23, 1939, No. 18418. Convention date, June 23, 1938. [Class 27] [Also in Group XXIV] In a price-change mechanism or variablespeed gear comprising a pair of gear wheels one at least of which is changeable so as to change the gear ratio, one of the gear wheels is carried by a pivoted arm and, after the gear wheel has been changed, this arm is rocked to bring the gears firmly into mesh, the operation of a lever then separating the gear wheels by a fixed amount so as to leave them in correct mesh with their axes at the correct pitch circle distance apart. In the construction shown the changeable gear 1 is mounted on a fixed pivot by means of a coupling device 3 and gears with a wheel 2 on a shaft 6 carried by an arm 4 pivoted on a shaft 5, the shaft 6 being connected by gearing 7, 8 with the shaft 5. Also pivoted on the shaft 5 is a bracket 9 carrying a lever 11 pivoted thereon at 18 and having two cams 13, 14 respectively acting on a pawl 12 and a clamp 10 for securing the bracket to the arm 4 in any position. When the gear ratio is to be changed the lever 11 is turned down to the position shown in Fig. 2, the arm 4 is rocked to separate the gears 1, 2 and the gear 1 is changed, the arm then being returned by a spring 40 to bring the gears firmly into mesh. The lever 11 is now moved upwards and its first action is that the cam 14 operates the clamp 10 and secures the bracket 9 to the arm 4 thus locking the arm and the bracket together. Further upward movement of the lever causes the cam 13 to rock the pawl 12 and release the latter from a fixed catch 16. Still further upward movement of the lever brings the upper end 19 thereof into engagement with an inclined edge 21 of a stop 20 thus moving the lever and arm 4 in a clockwise direction as seen in Fig. 1 and separating the gears 1, 2 by the required amount, the lever end 19 finally engaging in a notch 22 at the end of the incline 21.
Patent GB-992753-A (GB)
Title: Method of producing a haemostatic preparation
Inventor: CEPELAK VACLAR
IPC: A61K36/00
Filed: 1962-05-14
Abstract: A material having hermostatic properties is obtained by extracting the skinny testa of the peanut fruit (Arachis hypogea L.) with water and/or a water-miscible organic solvent, e.g. C1-3 alkanols (ethanol preferred), and concentrating the extract, e.g. by evaporation under reduced pressure.  The product may be incorporated in pharmaceutical forms for oral administration, e.g. a tincture or powder.
Patent GB-1533639-A (GB)
Title: Electrochromic device with cationic ion exchange resin separator
IPC: G02F1/15
Filed: 1976-05-05
Abstract: 1533639 Electrochromic display devices TIMEX CORP 5 May 1976 [24 Sept 1975] 18504/76 Heading G2F An electrochromic display device comprises first and second spaced substrates 2, 4, substrate 2 having selectively actuable spaced electrodes 6, 8 thereon and substrate 4 mounting a counterelectrode 18, electrodes 6, 8 having thereon layers 22, 24 respectively of an electrochromic material, and a solid electrolyte-separator layer 28 between said substrates, said layer 28 being composed of a chemically wetted cationic ion exchange resin in acid form. The resin may be in the form of a solid membrane layer or powdered cation ion exchange resin in the hydrogen form, said resin consisting of a perfluorosulphonic acid resin or sulphonated polystyrene in hydrogenated form, for example. The resin layer is activated by being chemically wetted with water or dilute sulphuric acid, for example, and may support or have incorporated therein an opaque pigment. The counter-electrode 18 may also have an electrochromic layer 26 thereon, layers 22, 24, 26 preferably consisting of tungsten oxide.
Patent GB-968812-A (GB)
Title: Improvements in electronic equipment including radial cavity resonators
IPC: H03F3/54
Filed: 1963-05-10
Abstract: 968,812. Valve amplifying, oscillating and frequency changing circuits. STANDARD TELEPHONES & CABLES Ltd. May 10, 1963 [May 17, 19621, No. 18570/63. Headings H3F and H3W. Equipment such as an amplifier, oscillator or multiplier includes an input radial cavity resonator; a valve having its grid 8 in the plane of a disc wall 2 of the resonator and its cathode 9 inside the resonator, the valve being adjacent the annular ring portion 1 of the resonator; a tuning plunger 12; and a further capacitive plunger 15 situated at a point between the valve and the tuning plunger 12. Adjustment of the plunger 15 matches the input admittance of the valve to the admittance of the cavity without the need to adjust the distance d. As described, the valve is a triode and has an output cavity 2, 4, 5, the anode 6 of the valve being inside the output cavity. Tuning of the output cavity is by means of a capacitive plunger 14, similar to the input tuning plunger 12, which may also be capacitive. A tetrode may be used in place of a triode.
Patent GB-770613-A (GB)
Title: Cup and saucer
IPC: A47G19/22
Filed: 1955-06-28
Abstract: 770,613. Cups and saucers. AARDEWERKFABRIEK HAHO N.V.June 28, 1955 [Jan. 28, 1955], No. 18644/55. Class 66. [Also in Group XIV] The saucer 2 has a central cylindrical recess 6, and the foot 3 of the cup 1 has a diameter and depth slightly smaller than the corresponding internal dimension of said cylindrical recess, the cup being so shaped that the lower portion 4 of its side wall rests on the edge 5 of the recess 6, and such that tilting movement of the cup relative to the saucer is limited by co-operation of said foot with said recess. The diameter of the recess 6 in less than the distance a. The saucer has a recess 9 for preventing a spoon placed beside the cup from sliding into the recess 6. The base of the saucer is so shaped that it can fit into a cup placed under it, for stacking purposes.
Patent GB-904017-A (GB)
Title: Improvements in and relating to flow detecting devices
Inventor: ANSELL RICHARD SYDNEY
IPC: G01P13/00
Filed: 1958-06-11
Abstract: 904,017. Flow indicators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 9, 1959 [June 11, 1958], No. 18684/58. Class 69 (1). In a device for detecting a small leakage flow of fluid, an axially-movable hollow float 12 is arranged as a close fit in a channel 11 through which the flow takes place and has at least one aperture 13 which permits larger fluid flows when the float is fully displaced. The channel 11 may be a glass tube sealed in a steel collar 6 having apertures 15, 16 for a light source 17 and photo-electric cell 18 used to detect the movement of the float 12. Stop 14 and push-rod 19 limit the movement of the float.
Patent GB-1475064-A (GB)
Title: Detergent compositions
IPC: C11D1/06
Filed: 1973-04-18
Abstract: 1475064 Detergent compositions CHEM-Y FABRIEK VAN CHEMISCHE PRODUKTEN BV 12 July 1974 [18 April 1973] 18686/73 Heading C5D Water-soluble detergent compositions free of perborate and other persalts and containing not more than 5% by weight, dry weight basis, of phosphate, comprise in admixture a watersoluble surfactant, a builder, an alkaline-reacting salt and an acidic compound the pK of which is, or in the case of polybasic acids, the lowest pK of which, is at least 2, such that a 0À5% by weight solution of the composition in water has a pH of 5À0 to 8À5 at room temperature. The surfactant may be a polyether carboxylate. The acidic compound may be citric acid or sodium bisulphate. The alkaline-reacting salt may be sodium silicate or carbonate. The builder may be sodium sulphate. A chlorine-type bleaching agent may be present, e.g. sodium hypochlorite.
Patent GB-274489-A (GB)
Title: Improvements in or relating to pneumatic variable speed gears
IPC: F16D31/02
Filed: 1927-07-14
Abstract: 274,489. Janik, E. July 15, 1926, [Convention date]. No Patent granted (Sealing fee not paid). Pneumatic clutches.-A variable-speed gear comprises a shaft 1 driving an air compressor 5 secured to the driven shaft 22 and compressing to a variable final pressure. The shaft 1 drives a flywheel 2 and an eccentric ring 3 fixed to or integral with it; the ring actuates pistons 61 working in radial cylinders, through pulleys 62. The cylinders shown in the vertical position receive air from the atmosphere through ports 7 and deliver it through ports 8 to an air chest 10; the horizontal cylinders circulate air to and ' from the chest through ports 8, 35. The inlet ports are controlled by the pistons. The outlet ports are controlled by valves 36 on spring- pressed rods 34 which force the pistons outwards. The air chest is provided with a safety valve 11, or the leakage in the system may be relied on to limit the pressure. The air may be wholly or partly released from the chest by a valve 21 opened by a hand lever or treadle 24. A shield 26 packed by a ring of felt &c. prevents entry of dust.
Patent GB-1501963-A (GB)
Title: Devices warning of a change of physical state of a fluid
IPC: G01N25/18
Filed: 1975-05-05
Abstract: 1501963 Indicating a change of physical state of a fluid HAWKER SIDDELEY DYNAMICS Ltd 5 May 1975 18774/75 Addition to 1465057 Heading G1N A warning device for a change of physical state as claimed in claims 1, 2, 6, 7, 8 of Parent Specification has a cooler having its thermo-electric heat pump with a narrow slit as its cold surface. Plates 11-15 are held together by bolts (not shown). Semi-conductor heat pump elements 16, 17 are bonded, so as to leave spaces 19 beyond, into longer rectangular cut-outs 18 in thick plates 12 and 14 separated 0À002 inches by shim plate 13, which thus forms slit 23 between them. Elements 16, 17 have, on upper and lower faces, electricallyconducting electrode areas, having leads 21 and insulated by varnish. Air flows via slit 23 and volume 19 and pipe 24. Cut-outs 25 in plates 11, 15 allow cooling of the surfaces of blocks 16, 17.
Patent GB-413491-A (GB)
Title: Improvements in roof structures for sports stadiums
IPC: E04B7/16
Filed: 1933-07-03
Abstract: 413,491. Stands for sports grounds ; roofs. SIBOUR, J. H. DE, 1701, Connecticut Avenue, and MARSHALL, G. P., 741, 9th Street, both in Washington, U.S.A. July 3, 1933, No. 18785. [Classes 20 (i) and 20 (iv).] Stands for playing fields are provided with movable roof sections 8 slidably carried by the fixed roof structure 3, means, such as electric motors 18 driving rollers 9 running on rails 10, being employed for independently moving said sections outwardly beyond the fixed roof structure partly or completely to cover the playing field. The fixed roof structure may have an inclined upper surface so that the roof sections slide upwardly and outwardly to enclose the field. Co-operating leather-faced gutter members 14, 15 are provided at the meeting edges of the roof sections over the centre of the field, and interengaging gutter members are provided between the sides of adjacent sections. The movable roof sections are counterbalanced by masonry enclosed in compartments 16. The electric motors are carried by the movable roof sections and drive the rollers through reduction gearing, a brake being provided to hold the sections in adjusted position.
Patent GB-689898-A (GB)
Title: Improvements in or relating to apparatus for spraying liquid over an area
IPC: A01G25/09
Filed: 1949-07-19
Abstract: 689,898. Spray-producers ; crop sprayers. CHAPLIN, P. H. July 18, 1950 [July 19, 1949], No. 18998/49. Class 69 (iii). Carriages 3, each supporting an outwardly directed pair of nozzles 24 fed with liquid through a hose 33, are pulled along tracks 2 by ropes 4 passing under pulleys 6 and connected to drums 8. The latter are carried on a shaft 9 and are rotated manually by a lever 11 and ratchet and pawl mechanism. Each pair of nozzles is carried by a T-piece 26 supported on vertical members 27, which are provided with a series of fixing holes 31 allowing adjustment of the nozzle height. The carriages are guided centrally between concrete rails 23 by rollers 21 at the ends of spring biased levers 20. Alternatively, power-operated mechanism with automatic reversing means may drive the carriages to and fro. The nozzles may be of the circular rose type, or as in Figs. 6 and 7.
Patent GB-712250-A (GB)
Title: Method of and means for spreading continuous filaments
Inventor: DOLEMAN JACK
IPC: D01G1/00
Filed: 1951-08-14
Abstract: 712,250. Metal pipes. BRITISH RAYON RESEARCH ASSOCIATION and T.M.M. (RESEARCH), Ltd. Aug. 14, 1952 [Aug. 14, 1951], No. 19086/51. Class 99 (2). [Also in Group IX] A duct in which continuously moving filaments are spread into a thin sheet by a contraflow air draught (see Group IX) comprises a converging portion, as at 16b, 26b; a throat, as at 12, 21, 28; and a diverging zone, as at 16a, 26a, the walls, as at 10b, of which may be plane or curved, removable and/or of transparent plastic material. The duct may vary throughout its length in cross-sectional area and shape e.g. rectangular, elliptical, circular, Figs. 7-10 (not shown), and comprise plates, as at 13a, for ensuring smooth air flow, and baffles, as at 13, for causing air turbulence. Outlet apertures, as at 11, f, 24, 27, are provided.
Patent GB-123294-A (GB)
Title: Improvements in Washing Plungers.
Inventor: KENWORTHY EDWARD NEWTON
IPC: D06F15/00
Filed: 1918-03-26
Abstract: 123,294. Kenworthy, E. N. March 26, 1918. Washing-plungers.-An upper inner conical air chamber D communicating with a main conical chamber A by a loose valve G closing on the down stroke of the plunger is provided with a number of conical tubes E extending up the handle socket F. The tubes are open at the top and communicate with the interior of the inner chamber D at the bottom. The valve G is supported in cut-away parts of curved partitions C of the shape shown in plan in Fig. 2, and closes against a division plate B.
Patent GB-516449-A (GB)
Title: Improvements in or relating to refrigerator or other heat insulated cabinets
IPC: F25D23/06
Filed: 1938-06-28
Abstract: 516,449. Refrigerators. ELECTROLUX, Ltd. June 28, 1938, No. 19138. Convention date, July 1, 1937. [Class 29] The outer walls or coverings 10, 11 of heatinsulated domestic cabinets, particularly refrigerators cooled by absorption refrigerating apparatus mounted outside a rear wall 58, Fig. 12, are formed of compressed wood or paper masses, such as pasteboard or papier mache, moulded without heat under pressure. The meeting edges of the panels may abut and be covered by a protective strip, or may be overlapped, or a one piece element may be reinforced at its edges. The walls are preferably formed with stiffening ribs 25, Fig. 4, and rounded edges, and are secured to the usual angle-iron frame members 16 of the cabinet by rivets or bolts 23 and to the wood door frame 12, 13 by nails, a covering strip 20 being applied. A separately moulded cover 35, Fig. 8, may be used for the door frame and be secured by strips 34, of synthetic resin on the inside and metal or other strips 39 on the outside. The back covering may be separately formed and also the top 30, Fig. 12, which has a flanged opening 55 over the usual flue space. Two sides and a front, Fig. 11, or one side and one half of the front, or two sides and a top, may be formed in a single moulded element. The covering may be protected from moisture by cementing or lining it with waterproof glue, asphalt, bitumen &c.
Patent GB-319836-A (GB)
Title: Improvements in or relating to laminated springs
IPC: F16F1/20
Filed: 1928-07-03
Abstract: 319,836. Weston, F. T. July 3, 1928. Laminated springs.- A ball or roller bearing insertion between the leaves of laminated springs as described in Specification 202,915, is formed with balls or rollers caged between two short plates secured to one another and provided with ears or clips which may be bent round the edges of the spring leaves. In one construction, shown in Figs. 2 and 3, balls c are caged between plates secured to one another by rivets d, a transverse strip with projecting ends b<1> forming the securing ends or lugs being riveted to one of the plates. Alternative methods of securing or forming the lugs are described. Hardsteel bearing-plates f with lugs g<1> may be interposed between the balls and the leaves as shown in Fig. 7.