baber/WOPTO huggingface dataset:
Patent GB-1083334-A (GB)
Title: Improvements relating to colour television
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H04N9/67
Filed: 1963-04-04
Abstract: 1,083,334. Colour television receivers. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 23, 1964 [April 4, 1963; May 18, 1963; July 5, 1963], Nos. 13462/63, 19856/63 and 26665/63. Heading H4F. The invention relates to a colour television receiver for use with transmitted signals which comprise a gamma corrected luminance signal Y = (0À59G+À30R+0À11B)# and two colour difference signals R# - Y and B# - Y. If a conventional linear matrix circuit is employed to derive the green colour difference signal there is obtained a signal (G # - Y)+1À7 (Y - Y<SP>1</SP>), the second term being an error term in which Y<SP>1</SP> is the normal N.T.S.C. type of luminance signal, i.e. Y = 0À59G # + 0À30R # + 0À11B #. The invention is concerned with reducing this error in the green signal. A first arrangement, Fig. 1, is based on the matrix circuit for use with the XZ form of subcarrier detection (see " Colour Television " by Carnt & Townsend, 1961, page 246). In applying the invention the positive excursion of the red colour difference signal is selected by diode 2 and applied via potentiometer 7, 8 to the grid of valve 9 from the anode of which the green colour difference is obtained. The arrangement function to reduce the errors in the neighbourhood of the red primary in the colour chart. In modifications the correction may be derived from the blue colour difference signal, from the red and blue signals, or from the red, blue and green signals, so as to modify or increase the areas of the colour chart over which correction is obtained. The correction may be improved by first passing the selected red and blue signals through non-linear, e.g. squaring, circuits. Further correction may be obtained by a third signal derived by detecting the amplitude of the colour subcarrier signal. Fig. 3 (not shown), illustrates a modification based on a matrix for deriving the green signal from red and blue colour difference signals and involves convention by the positive excursions of the red and blue signals. A second arrangement, Fig. 2, uses the red colour difference for the correction, but the signal is applied via a valve 14 which is rendered transmissive by a long-tailed pair circuit 10, 11 only when the red signal is greater than the greater positive of the green and blue signals which is selected by diodes 12, 13. Valve 14 is arranged to be just non-conductive for zero value of the red signal applied to its grid. The output at 15 is applied to the grid of the valve for the green signal in a XZ matrix as in Fig. 1. By using two further circuits similar to Fig. 2 for green and blue signals, correction may be affected over the whole area of the colour chart. A third arrangement (not illustrated in detail) uses as the correcting signal the modulus of R# - B#. The red and blue colour difference signals R# - Y and B# - Y are applied to the grid of two cathode coupled valves and diodes are provided to select the more positive signal at the anodes.
Patent GB-769043-A (GB)
Title: Single-phase commutator motor for direct traction drives
IPC: H02K27/02
Filed: 1955-05-10
Abstract: 769,043. Winding layouts for A.C. commutator motors. AKT.-GES BROWN, BOVERI & CIE. May 10, 1955 [May 13, 1954], No. 13470/55. Class 35. The permissible flux per pole, and therefore the permissible transformer induced E.M.F. per coil, is increased in a single-phase A.C. commutator motor by using a multiple or multiplex armature winding, i.e. having more than two parallel paths per pole connected to consecutive commutator segments, each coil being connected at the same number (as the paths per pole) of tapping points to the intermediate segments, at least some of the equalizing connections passing through an axial break in the armature core. As shown in Fig. 2, for a triple winding, the coil m, k, n is connected to segments 1 and 4, the other two windings being connected to intermediate segments 2, 3. The E.M.F. in each section m, k, n is made equal by dividing the armature core into unequal parts h, i, the equalizing connections o, p connected to segments 2, 3 serving to distribute the coil voltage equally over the four segments. In the case of a quadruple winding the core parts are equal and a further tapping is taken from the apex of the coil to an intermediate segment. If desired, instead of making tappings on the slot conductors, the equalizing connections may be carried partly through the winding slots and connected at the coil apex end only, as shown in Fig. 5, for a quadruple winding. Altertatively the connections may all be made at the commutator ends of the coil, or half each. Other methods of improving commutation such as resistive connectors and split brushes may be used as well.
Patent GB-975405-A (GB)
Title: Hydraulically actuated valve for internal combustion engines
Inventor: GROSCHEL ERNEST RALPH
IPC: F01L9/11
Filed: 1960-04-14
Abstract: 975,405. I.C. engines valve gear. RUSTON & HORNSBY Ltd. Feb. 20, 1961 [April 14, 1960], No. 13518/60. Heading F1B. In a dual fuel compressionignition engine, the gas fuel valve 18 is actuated hydraulically by means of a plunger 13 which is held in contact by moderate feed pressure from hydraulic fluid in a pipe 12 leading from a variable output pump 11 driven by the engine camshaft, extra feed pressure supplied by the pump being sufficient to overcome the valve closure spring 23 by axial displacement of plunger 13, the valve lift being substantially constant and the valve opening period being variable during running of the engine. Hydraulic fluid is supplied by the engine feed pump under pressure to the suction gallery 11D of pump 11, fills pipe 12 and enters by-pass bore 19 where it overcomes a non-return valve 21 to enter bore 22. When the plunger of pump 11 obturates its fill port the rise of pressure causes axial displacement of plunger 13 to open valve 18 until plunger 13 uncovers spill port 16 to return fluid to the tank. The return movement of plunger 13 covers inlet port 15 to provide some hydraulic cushioning by trapping oil between the top of plunger 13 and ball 21 so that oil may leak through passage 26.
Patent GB-432458-A (GB)
Title: Improvements in maximum demand indicators
IPC: G01R11/60
Filed: 1934-05-04
Abstract: 432,458. Thermal current meters. WEST & CO., Ltd., A., and BATCHELOR, A., Lewes Road, Brighton, Sussex. May 4, 1934, No. 13541. [Class 37] A maximum-demand indicator of the U-tube type closed at its upper ends and containing a liquid displaced by air heated by a current coil has the limbs 1, 8 of the tube arranged one within the other, a communicating port 9 being located at the bottom of the inner tube which is fused into the outer tube below the heating bulb 3. The bulb 3 has a tube 4 fused in its lower end and contains an air port 5.
Patent GB-166770-A (GB)
Title: New or improved appliances for playing a game
IPC: A63B65/12
Filed: 1920-05-17
Abstract: 166,770. Smith, A. F. May 17, 1920. Projecting-appliances.-A device for throwing up a ball for a player to strike with a bat comprises a casing containing a lever 10, a spring- raised plunger 16, a buffer 22 and a vertical channel 5 for the ball. The top of the plunger is padded. The pivot 7 of the lever passes through the sides of the casing and through bearing-plates 8, and is partially supported by side strips 9. In a modification, the pivot is supported entirely on the strips 9. In using the appliance, the player strikes the plunger with the edge of a flat bat, Fig. 4, thus throwing up the ball 12, and then strikes the ball with the flat of the bat.
Patent GB-877217-A (GB)
Title: Guide-needle mounting for warp knitting machines
IPC: D04B27/24
Filed: 1959-04-21
Abstract: 877,217. Knitting-machines. MAYER, ERSTE HESSISCHE WISKMASCHINENFABRIK G.m.b.H., KARL. April 21, 1959 [April 22, 1958], No. 13596/59. Class 74 (2). To minimize deviation from the straight line and consequent wear of yarns, as they pass through the eyes of their guide needles 10, the needles are obliquely mounted in their leads 8, in a plane which is parallel to or coincident with the mid-plane of the leads, which leads are contiguous with each other along lines 9 inclined to the longitudinal axis of the mounting and preferably parallel to the guide needles.
Patent GB-560189-A (GB)
Title: Improvements in or relating to electric induction heating apparatus
IPC: F27D11/06
Filed: 1942-09-29
Abstract: 560,189. Transformers. BUDD INDUCTION HEATING, Inc. Sept. 29, 1942, No. 13676. Convention date, Oct. 18, 1941. Drawings to Specification. [Class 38 (ii)] [Also in Groups II, XI and XXII] The cooling liquid for the inducing head of induction heating apparatus is also supplied to the primary and secondary of the associated transformer which is of the kind in which the primary is axially movable relatively to the secondary.
Patent GB-951496-A (GB)
Title: Method for producing highly viscous aqueous media
Inventor: HIBBARD BILLY BROWN
IPC: C08L35/00
Filed: 1962-04-10
Abstract: Highly viscous aqueous media are produced by combining an aqueous solution of a nitrogenous polymer of an N-alkenyl cyclic amide or carbamate and an aqueous solution of a high molecular weight acid-group containing polymer, the aqueous solution of the acid-group containing polymer containing the polymer in highly solvated form and in true solution when combined with the nitrogenous polymer solution. The true solution of the acid-group containing polymer in highly solvated form is obtained by adjustment of the solution pH. Specified nitrogenous polymers are N-vinylmorpholinone, N-vinylpyrrolidinone, N-vinyl oxazolidinone, 5-methyl-N-vinyl-2-oxazolidinone, 5-(2-hydroxyethyl)-N-vinyl-2-oxazolidinone, or 6-methoxy N-vinyl oxazolidinone while specified acid group containing polymers are polystyrene-p-sulphonic acid, polyvinyl sulphonic acid, polyacrylic acid, sodium polyacrylate, polyvinyl-benzoic acid and substituted benzoic acid, partially hydrolyzed polyacrylamide, a hydrolyzed copolymer of vinyl acetate and maleic anhydride, a copolymer of styrene and maleic anhydride partially hydrolysed and then neutralized with sodium hydroxide, ring sulphonated polystyrene, and copolymers including one of the above acidic monomers.
Patent GB-623871-A (GB)
Title: Vehicle seat adjustment means
IPC: B60N2/06
Filed: 1947-05-22
Abstract: 623,871. Seat adjustments. STANDARD. MOTOR CO., Ltd., BALLARD, A. E., and BELGROVE, W. May 22, 1947, No. 13753. [Classes 52 (i) and 52 (ii)] [Also in Group XXIV] A vehicle seat capable of adjustment backward and forward wherein a helical spring 17, serving as a screw thread, is carried by a fixed bracket 19 and is engaged by a lateral projection 24 on a spindle 11 mounted on the seat frame. The spring 17 is preferably secured only at its ends so that the mounting is somewhat resilient.
Patent GB-1108928-A (GB)
Title: Device for measuring irregularity in rotatory movements
IPC: G07C3/00
Filed: 1966-03-29
Abstract: 1,108,928. Measuring angular acceleration electrically. W. FERD KLINGELNBERG SOHNE G.m.b.H. March 29, 1966 [April 14, 1965], No. 13835 /66. Heading G1N. Unevenness of rotational movement of, for example, a cog-wheel, is measured by resiliently mounting an inertial mass 1, Fig. 1, on a member 5 forming part of a housing 10 attached to the cogwheel, so that a certain degree of relative rotation is possible between the mass 1 and the housing 10, any relative rotation arising from momentary changes in angular speed of the cog-wheel being measured by an inductive transducer 6; and an electromagnetic device 2, 3, responsive to the amplified output of the transducer 6, acting to oppose the restoring moment of the resilient mounting. The output of the transducer 6 flows directly to an amplifier 8, and a portion thereof also flows through an RC circuit 7 which introduces a derivative term, dependent upon the rate of change of angular deflection between mass 1 and housing 10. Also, a non-linear circuit element 9 introduces an approximately cubic term into the amplifier input, to correct for non- linearities Fig. 2 (not shown) which arise in the torsional moment supplied by the resilient mounting 1-5 at large angles of relative deflection between the mass 1 and the housing 10.
Patent GB-411827-A (GB)
Title: Improvements in and relating to diaphragms for photographic apparatus
IPC: G03B7/085
Filed: 1932-09-12
Abstract: 411,827. Lens diaphragms. RISZDORFER, 0., 13, Avar Utca, Budapest. Sept. 12, 1932, No. 13920/34. Convention date, Sept. 12, 1931. Divided on 411,814. [Classes 9 (i) and 98 (i).] A diaphragm, particularly for actuation by electric current from a light-sensitive cell, comprises a number of leaves or elements which are individually separated by air gaps in order to avoid friction. Fig. 1 shows one form in which three spaced leaves 1, 2, 3 are mounted upon carriers 4, 5, 6 secured to cords 7 passing around pulleys 8, 9, 10, the pulleys 10 being on the spindle of a coil 17 connected to the circuit of a photo-electric cell 18 through adjustable resistances 20, 21 corresponding to emulsion speed and shutter setting. Fig. 2 shows a diaphragm comprising spaced, overlapping, apertured elements 30, 31 supported upon the middle and ends of a spring 37 which is secured to intermediate holders 40. The element 30 is connected by cords 36 to the spindle of the coil 35 actuated from the photo-electric cell. Fig. 4 shows a modification comprising radial elements 47 secured by extensions 48 to a circular spring 44. Fig. 6 shows a further modification comprising coaxial, cylindrical leaves 1, 2 carried by radial arms 3, 4, extending from aligned spindles 5, 6 of a pair of oppositelymoving coils 17, 13.
Patent GB-433446-A (GB)
Title: Work-holder
IPC: A41H15/00
Filed: 1935-05-13
Abstract: 433,446. Clamps. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co.; Elizabeth, New Jersey, U.S.A.) May 13, 1935, No. 13947. [Class 44] [See also Group VII] A clamp for holding one side of a seam during unpicking comprises a pair of jaws 5, 8 carried by a bracket 1 by which the device is secured to the table 2. The jaw 5 is fixed and the jaw 8 pivoted at 7. The jaw 8 is operated by an eccentric 11 working between the limbs 10, 10<1> of the bifurcated rear part of the jaw 8.
Patent GB-1443855-A (GB)
Title: Process for the production of synthetic foamed planer bodies
IPC: C08J9/06
Filed: 1974-03-29
Abstract: 1443855 Foam backings CHEMIEFASERKOMINAT SCHWARZA "WILHELM PIECK" VEB 29 March 1974 14000/74 Addition to 1348911 Heading B2E [Also in Divisions A3, B5 and C3]  Coatings on substrates consist of a synthetic, flat, sheet-like foam suitable for textile purposes having open and/or closed pores which is made by foaming at least one foamable polymerisable substance and/or at least one foamable cross-linkable substance applying the foam to the substrate and then polymerising and/or cross-linking the foam by means of electron radiation initiation. In example (4) an unsaturated polyester resin is foamed with carbon dioxide, the foam is applied onto a synthetic resin wall covering and then the foam is cross-linked by irradiation with an electron accelerator. The foam layer may have been levelled with a rake before cross-linking.
Patent GB-406256-A (GB)
Title: Improved driving mechanism for machines such as washing machines, churns, pumps, and the like
IPC: D06F15/00
Filed: 1932-05-17
Abstract: 406,256. Actuating pumps. DECKER, J. B. DE, 17, Rue Herry, Brussels. May 17, 1932, No. 14026. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 16, 1932]. [Class 102 (i).] Driving-mechanism for a reciprocating pump, comprises a support 1 having a base 2 fixed to the pump, a hand-driven crank or a hand or power driven flywheel 5 journalled in the support and a crank or crank disc 7 on the shaft 4. The crank-pin 8 is rotatably received in a block 9 which is slidably mounted in a guide member 10 provided with a sleeve portion 11<1> secured to the shaft 11 which is thus axially reciprocated in bearings formed in the support 1 and base 2. The guide member may be provided with tubular portions 14, 15, Fig. 2, slidably mounted on rods 20, 21 which extend between arms 16, 17, 18, 19 extending from the support 1, or the portions 14, 15 may be secured to the rods 20, 21 which then reciprocate through guides in the arms 16 .. 19.
Patent GB-692672-A (GB)
Title: Improvements in windshield visors
IPC: B60J3/00
Filed: 1951-06-13
Abstract: 692,672. Hinges. NYSTROM, K. G. June 13, 1951. No. 14030/51. Class 65 (ii) [Also in Group XXXII] In a pivoted sun visor for a vehicle, actuated by a winding mechanism within the vehicle each hinge comprises one part 15 secured to the visor and another member 21, formed from sheet metal for attachment to the front roof panel of the vehicle. The member 15 is bored at 17 to receive a hinge pin 19 which is formed with a head 18, having a spherically concave seating, and a threaded portion to receive a nut 20 which has a spherical end in order to clamp an extension 23 of the member 21 between the nut and the concave seating of the head 18. The part of the bracket 15 which carries the bore 17 is spherically shaped in order that the position of the bore may be selected to suit the curvature of the roof portion of different vehicles and the aperture 24 in the plate 21 is larger than the diameter of the threaded shank of the pin 19 to enable the hinges to be aligned on roofs of different curvature. The outer end 26 of the winding mechanism is pivotally and slidably connected to the sun visor 13 by a pin 37 which carries at each end a shoe 38 spring biased into engagement with a slideway 37 formed in a channel section guide member 40 secured to the sun visor.
Patent GB-227625-A (GB)
Title: A machine or apparatus for the printing of photographic films
IPC: G03B27/08
Filed: 1924-03-28
Abstract: 227,625. Porten, F. G. March 28, 1924. Printing-apparatus. - In kinematograph and like film printing-apparatus the sensitive and negative films a, e, Fig. 2, are moved intermittently past an exposure window j of dimensions to expose two or more pictures simultaneously, each movement feeding the film one picture at a time. In the form shown in Figs. 1, 2 and 4, for printing two films at a time, each sensitive film a passes from a light-tight casing c, through a light-trapped slot d‹ into a printing casing d, where it passes over a sprocket feed-drum g in contact with the negative film e which enters through a light-trapped slot d<2>. After passing the exposure window and a feed-drum v. the films separate, the film a passing into a light-tight casing u, where it is wound on a reel u‹ which is driven from the shaft of the drum v. The window j, which exposes three consecutive pictures, is formed in a frame j<3>, adjustably supported on the wall d<1> of the casing d by means of a lever j<4>. pivoted at one end j<5> and adjustably secured at the other end by a, nut j<6> and a screw j<7> in a slot j<8>. The films a, e pass between the frame j<3> and a gate i hinged to the wall d<1> and having a ruby glass or other inspection window k. The opposite wall d<3>, which is hinged so that it can be opened, has a correspondingly non-actinic window k‹. The films a, e are fed by a pair of teeth l, Fig. 5, carried by a spring-actuated member l<1>, a groove in which is engaged by a rotating cam m' to reciprocate the pins to and from the films. The up and down movement of the pins l is effected by the reciprocation of a member n in which they slide by a rotating cam o engaging flanges n<3> on member n. The cams m<1> o are mounted on a common shaft p, the shafts p for each pair of films being intermittently rotated to move the films bv a toothed segment q on a disc r, the disc r holding the shafts p rigid in the interval by its engagement with the curved end of arms s thereon. Recesses 81 on the disc r allow release of the arms s when the shafts are rotated. The disc r is driven through a pulley t<2>, shaft t<1>, and bevel-gear t from a motor the speed of which can be varied according to the length of exposure required. The feed-drums g, v are intermittently driven by shafts p through bevel-gear x, shafts w<1>, w<2> and bevel-gear w. Cooling-air is directed onto the exposure window from a blower or fan z. A shield z<1>, preferably covered with asbestos, protects the films e from the heat of the projection lamp.
Patent GB-1161887-A (GB)
Title: Improvements in or relating to Solar Liquid Heaters.
Inventor: WEMYSS WILLIAM ALEXANDER
IPC: F24S10/70
Filed: 1966-03-30
Abstract: 1,161,887. Utilizing solar heat. SWIMMING POOLS (FILTRATION) Ltd. 30 March, 1967 [30 March, 1966], No. 14095/66. Heading F4U. A solar liquid heater comprises a transparent, inflatable outer casing 1 and a blackened watertight inner structure 5, 6 for the passage of liquid to be heated. Structure 5, 6 comprises a plurality of tubes 7 which are connected to form a tortuous path for the liquid. The heater is preferably formed from sheets of polyvinyl chloride and may be used for heating water for a swimming pool. Thus, a pump which is started by a sun-operated thermostat may be employed to recirculate water through the heater until its temperature exceeds that of the pool and a thermostatically operated valve diverts the water into the pool.
Patent GB-653613-A (GB)
Title: Improvements in and relating to tubes formed by helical winding
IPC: B31C3/00
Filed: 1944-07-24
Abstract: 653,613. Paper &c. tubes. ROBINSON, E. B. July 24, 1944, No. 14107. [Class 99(ii)] [Also in Groups VIII and XL(b)] Paper &c. tubes each bearing a printed, unitary pattern 7, Fig. 1, and formed from strip material 2 on which patterns are printed at an angle, by winding the strip helically on a mandrel 3 and cutting lengths from the tube as it leaves the mandrel, the cuts being timed to sever the tube between successive patterns by means of a detector actuated by a control mark 9 or device on the strip. Blank spaces 8 on the strip 2 form spaces between the tubes for purpose of trim. A beam of light is reflected from the strip to a light-sensitive cell connected to a circuit containing a valve 16, Fig. 5, to amplify the impulses, which are then applied to the grid of a gasfilled relay 17. The current in a relay circuit containing a reset switch 18 operates a further relay 19 to energise a solenoid 20 adapted to release a catch 21 from a rotatable barrel 22 having a cam groove 25 and follower 26, Fig. 6 A motor is reciprocated on a guide 28 at the same speed as the tube and is swung laterally by reason of the increasing depth of the cam groove so that the saw 6 severs the tube. The switch 18 is operated by the motor at the limit of its travel. The strip 2 overlaps at the edges, the length of tube produced being varied by varying the angle of the helical winding such as by adjusting the angle of an end less belt 4 which rotates the tube on the mandrel.
Patent GB-760989-A (GB)
Title: Polyvinyl chloride sheet articles
Inventor: CLARKE ARTHUR DAVID
Filed: 1954-05-14
Abstract: 760,989. Strengthening edges of sheet material. COMMERCIAL PLASTICS, Ltd. Feb. 15, 1955 [May 14, 1954], No. 14155/54. Class 42 (1). Articles such as wearing apparel and flags, made from plasticized polyvinyl chloride sheeting, have a hem within which extends a length of nylon monofilament the thickness and rigidity of which, in relation to the thickness of the polyvinyl chloride sheet, is such that, on flexing in use, the hem curves and does not bend sharply about a point. For use in connection with rainwear, monofilament of 0.20-0.22 inch diameter is suitable. According to the Provisional Specification, piping cord or lead wire may be used instead of nylon monofilament.