baber/WOPTO huggingface dataset:
Patent GB-990073-A (GB)
Title: Ceiling lighting fixture
IPC: F21V17/16
Filed: 1962-06-12
Abstract: 990,073. Lighting fittings. LIGHTOLIER Inc. June 12, 1962 [Aug. 11, 1961], No. 22525/62. Heading F4R. A lighting fitting comprises a housing having side walls 14 provided with support brackets 15, 15<SP>1</SP> with opposed channel portions 16 at the lower edges and a substantially rectangular translucent panel 27 having side pieces 29 at opposite edges, the upper edges of which have outwardly directed lips 34 engaging in the support brackets, one of which contains resilient means 41 pressing on the lip to move the panel towards a central position, means 47 being provided to limit the movement, and compression of the means 41 permitting movement of the panel until the lip 34 on the opposite side is clear of the channel 15<SP>1</SP>. To support the panel after removal, the upper edge of the side piece 29 has a thickened portion 31 in which is a channel 32 with a side opening 33 to receive a bead 55 supported by a flexible hanger 56. Holes may be formed in the lips 34 from which air forced into the casing can escape so that the fitting can be used as part of a ventilation system.
Patent GB-1521101-A (GB)
Title: Zeolite and method of preparing it
IPC: B01J29/70
Filed: 1975-07-23
Abstract: 1521101 Zeolites W R GRACE & CO 23 July 1975 [7 Oct 1974] 22630/75 Heading C1A A new zeolite, VK-2, has the formula M 2 O:xSiO 2 :Al 2 O 3 :yH 2 O (in which M is Na + K; x is 2-4; y is 2-10) and a characteristic X-ray diffraction pattern. Cation M may be exchanged with NH 4 , Na, Li, Ca, Mg, Ba, Sr, a rare earth and/or a transition metal cation. The zeolite may be prepared by reacting two mixtures which have been aged, the first mixture containing H 2 O, K 2 O, Al 2 O 3 , V 2 O 5  and optionally SiO 2  values in specified molar ratios and the second containing H 2 O, Na 2 O, SiO 2  and Al 2 O 3  values in specified molar ratios. The zeolites may be used as absorbents in gas fractionating systems.
Patent GB-635376-A (GB)
Title: Improvements in and relating to the mixing or blending of powdered or granular substances
IPC: B01F15/02
Filed: 1947-08-14
Abstract: 635,376. Feeding materials to mixing machines. PRICE, D. G., and GARDNER & SONS (GLOUCESTER), Ltd., W. Aug. 14, 1947, No. 22655. [Class 86] [Also in Group XXX] A machine for mixing a plurality of powdered or granular substances comprising a chamber 1 with stirrers 5 mounted on a shaft 2 is fed by means of sifters so that each substance is widely distributed in the mixer. Sprays a r e provided for colouring, sweetening, &c., the substances individually as they fall into the mixer. The horizontal cross-sectional area of the chamber 1 is divided by a plate 12 and the two upper compartments so formed are provided with helical brushes 7, 8 and sifter screens 9, 10. Vibrating hoppers 15, 16 feed granular materials to the sifters, and the brushes ensure that each material is widely distributed in the mixer. Holes 27 below the sifter screens and above the mixer blades are fitted with sprays, so that each substance may be sprayed independently before reaching the mixer. Particles too large to pass through the sifters are rejected separately at the end of the machine. Specifications 551,590, [Group XXX], 631,036 and 631,497, [Group XXX], are referred to.
Patent GB-1466292-A (GB)
Title: Aqueous dispersions of solid resinous substances and process fo making same
IPC: C09K23/00
Filed: 1974-05-21
Abstract: 1466292 Epoxy resin dispersions DOW CHEMICAL CO 21 May 1974 [23 May 1973] 22660/74 Heading C3B An aqueous dispersion comprises: (A) 2-75 parts by wt. of a water-insoluble epoxy resin having an average particle size <10 Á, provided that when the average is > 5 Á, not more than 25% by wt. of the particles have an average size >15 Á; (B) 98-25 parts by wt. of water; and (C) 1-10 parts by wt. of epoxy resin of a non-ionic dispersing agent which is a synthetic gum derived from cellulose, a hydroxyalkyl guar gum or a polyvinyl alcohol containing unhydrolysed acetate groups. (A) may be a solid diglycidyl ether of bisphenol A or an epoxy novolac resin. The dispersion may be prepared by: (1) mixing in a high shear mixer, a first stream containing water and a dispersing agent, as set out above, with a seconding stream containing water insoluble epoxy resin liquefied by heating or dissolved in an organic solvent; (2) circulating the resultant streams through a high shear mixer until the concentration of solid dispersed epoxy resin reaches the desired level; and (3) separating the organic solvent, when present, therefrom. In an alternative method: (1) water, a dispersing agent as defined above and the solid epoxy resin are mixed at a temperature such that a highly viscous homogeneous mixture is obtained; (2) the mixture is maintained at such a temperature for 30 minutes to 12 hours; and (3) water is slowly added until the desired solids level is obtained. Uses.-Coating compositions.
Patent GB-1161977-A (GB)
Title: Energy-Reponsive Luminescent Display Device
IPC: G01T1/26
Filed: 1968-05-14
Abstract: 1,161,977. Electroluminescent display devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 14 May, 1968 [19 May, 1967], No. 22848/68. Heading G5C. [Also in Division C4] An energy-responsive luminescent display device comprises an electroluminescent element 1 caused to glow by an A.C. voltage V a  applied from a source 5 through a blocking capacitor C s . The optical output L 2  has a waveform controlled by a D.C. field V b  (from a source 5), whose magnitude is determined by an energyresponsive resistive element 2, whose resistance R p  is in turn determined by an incident energy source L 1  (which may be light, magnetism or mechanical shock waves). In Fig. 1 a matching resistor R s  shunts capacitor C s ; but in Fig. 2 (not shown), R s  shunts element 1 and output L 2  is therefore a negative image of L 1 . As described, Fig. 3, there may be a plurality of electrodes 17, 14, 18, a capacitative layer 15, a plurality of resistive layers 16, a layer 13 of photoconductive material (corresponding to resistance R p ), a resistive light shield 12, electroluminescent layer 1 and a transparent electrode 11, mounted on a glass plate 10. The positions A, B of switch S correspond to the circuits of Figs. 1, 2 respectively. Storage is achieved by a residual D.C. field which polarizes element 1. One of two light pulses occurring per cycle can be extracted using a synchronized light chopper 7. The compositions of the photoconductive 13 and electroluminescent 1 layers are described (see Division C4).
Patent GB-790600-A (GB)
Title: Indicating mechanism for tape-perforating apparatus
IPC: B41B25/00
Filed: 1956-07-24
Abstract: 790,600. Type-making machines. TELETYPESETTER CORPORATION. July 24, 1956 [Aug. 29, 1955], No. 22858/56. Class 100(3) Strip - perforating machines. Indicating mechanism for keyboard - controlled tapeperforating apparatus comprises a matrixwidth pointer and a justification pointer movable towards each other along a scale, and an auxiliary, pointer movable along the scale by means actuated by the operator to indicate in advance the length of a. non-expansible end portion of the line (such as the exchange and number in a telephone directory). The matrix-width pointer 13, Fig. 3, moves to the right over the scale 18 under the control of the keys, while the justification pointer 14 moves to the left under the control of the space key actuating a pawl 32. The auxiliary pointer 15, Figs. 3 and 5,-is positioned by means including a set of pushbuttons representing the various exchanges arranged in twenty groups of seven, each group embracing exchanges with equal matrix width counts. The pointer 15 is actuated by a cam 55 on a shaft 44 also carrying wiper arms 43, 92 which successively engage contacts arranged in sets 45, 93 respectively. The shaft 44 is rotated in steps by the "buzzing" or on-off action of a magnet 48. whose armature 49 carries a pawl 47. When a pushbutton is pressed, one of the contacts 63, Fig. 6, is closed to energize one of the relays 62, there being one relay for each group. Energization of a relay 62 closes its contacts 66, 67, 68. Contact 66 closes a holding circuit from positive battery 73 through normally closed contact 71 of a relay 72. Contact 67 connects the contacts 93 to battery 73 through the winding of relay 72. Contact 68 closes a circuit between positive battery 75 and negative battery 82 to energize a relay 74, whereupon the contact 83 is closed. Contact 83 closes a circuit from battery 73 through normally closed contact 86 of relay 72 to the contacts 45, which are connected in series. and thence through wiper arm 43, and contact 54 to magnet 48. Since energization of magnet 48 opens the contact 54 to release the magnet 48 and release of the magnet closes the contact 54 to energize it, the magnet 48 has an on-off action which stops the shaft 44 to rotate the arms 43, 92 and the cam 55. When the arm 92 reaches the contact 93 which has been connected to battery 73 through contact 67 of the energized. relay 62, the relay 72 is energized, since it is now connected to negative battery 96. Energization of relay 72 opens the contact 71 to release the relay 62 and open the contacts 66, 67, 68, thereby releasing the relay 74 and opening contact 83 and also opens the contact 86 to break the circuit to the magnet 48 and stop the shaft 44 with the cam 55 in such a position as to place the pointer 15 in the required position. wherein the distance between it and "O" on the scale 18 is the length of the non-expansible part of the lin.e so that the line is justifiable when the distance between the pointers 13. 15 is less than that between the pointer 14 and "O" on the scale.
Patent GB-879667-A (GB)
Title: Improvements in or relating to magnetic core circuits
IPC: G11C19/04
Filed: 1958-07-17
Abstract: 879,667. Magnetic amplifiers. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. July 17, 1958 [July 24, 1957], No. 22965/58. Class 40 (9). Each stage of a cascade of back-to-back halfwave resetting magnetic amplifiers used as a stepping register has two input windings on each core. As shown in Fig. 3 the pairs of cores M1, M<SP>1</SP>1; M2, M<SP>1</SP>2; M3, M<SP>1</SP>3 have cross-connected pairs of input windings, n1, n<SP>1</SP>2 and n<SP>2</SP>, n<SP>1</SP>1; the parallel branches of each stage being energized by alternating current of a phase opposite to that of the preceding and subsequent stages. Input current to one pair of input windings n1, n<SP>1</SP>2 drives the cores M1, M<SP>1</SP>1 to saturation in one direction and the system is such that negligible current is at this time applied to input windings n2, n<SP>1</SP>1. Should input windings n2, n<SP>1</SP>1 be energized cores M1, M<SP>1</SP>1 are driven to saturation in the opposite direction and windings n1, n<SP>1</SP>2 are effectively unenergized. During a half-cycle after cores M1, M<SP>1</SP>1 have been set load windings N are energized, one load winding finding low impedance and driving its associated pair of input windings to the next stage, and the other finding high impedance which blocks the remaining pair of input windings. Cores M2, M<SP>1</SP>2, are therefore set and will control load current to the next stage in the same way as cores M1, M<SP>1</SP>1. By using three limbed cores, as shown in Fig. 3, with a centretapped winding on the centre limb the need for cross-connected windings is avoided as each half of the centre-tapped winding is an input winding capable of switching both outer limbs. The outputs of two back-to-back stages may be connected in common to supply input to a single subsequent stage (see Fig. 5). For this purpose it is necessary that an input to either or both terminals 10 and 11 should produce an output on terminal 15. This is achieved by making input windings n1 and n<SP>1</SP>2 of more turns than the input windings n2, n<SP>1</SP>1 so that when both sets of windings are energized the input to terminal 10 or 11 prevails. Output appears on terminal 14 only when input is applied to both terminals 12 and 13.
Patent GB-934600-A (GB)
Title: Automatic adjuster for hydraulic disc brakes
IPC: F16D65/14
Filed: 1961-06-26
Abstract: 934,600. Brake adjusting devices. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES.]. June 26, 1961 [Nov. 16, 1960], No. 23017/61. Class 103 (1). In an automatic adjusting device particularly for disc brakes, a friction element 6 is provided between a piston 2 and cylinder 1 and a compression spring 5 bears against a washer 7 abutting a friction element 6 embracing a pin 8 secured to the cylinder 1 such that the spring 5 acts on an abutment member 4 movable in the piston such that the friction element 6 opposes movement of the abutment member 4 towards the brake disc while the force of the spring opposes movement of the abutment member in the brake release direction. When the brake cylinder shown in Fig. 1 is supplied with pressure medium the piston 2 is moved towards the brake disc (not shown) and, through an adjustable piston end plate 3, the abutment 4 is moved to advance the friction element 6 with respect to the pin 8 secured to the cylinder by the amount of the friction wear. A gap "a" corresponding to the brake clearance exists between the inside of the piston and the end face of the abutment 4, which clearance may be adjusted by adjustable end plate 3. When the brake cylinder ceases to be pressurized, the piston 2 will remain in the position into which it has moved and the friction pad rubs against the disc. Slight deviations of the disc from its plane can be followed by the piston to an extent corresponding to the distance a but the piston cannot return towards the brake disc. When considerable disc wobble takes place the piston 2 is pressed further back into the cylinder 1 and the inside surface of the piston 2 engages with the end face of the abutment 4 whereafter the force of the spring 5 must be overcome for any further displacement into the cylinder of the piston 2 by a distance not exceeding a clearance " b." When the disc moves away from the piston the spring 5 expands and moves the piston towards the brake disc. When the brake disc rotates without wobble the spring 5 expands and moves the piston towards the brake disc and the brake friction pad remains disengaged from the disc by the amount " a." An alternative embodiment is shown in Fig. 2 wherein a friction ring 14 is housed in a external round groove 10 of the piston 9, there also being provided a spring abutment 11, a compression spring 17 and an adjusting ring 13; the operation being similar to that previously described.
Patent GB-641062-A (GB)
Title: Improvements in or relating to the manufacture of metals
IPC: C21B5/00
Filed: 1948-09-01
Abstract: A plant for the manufacture of metals comprises a metallurgical furnace, apparatus for the liquefaction of air in situ, means for enriching the furnace atmosphere with oxygen, and means for enveloping the molten metal discharged from the furnace in nitrogen, the oxygen and nitrogen both being derived from the liquid air.  A gas turbine operated by blastfurnace gas may be used to drive an air compressor in the liquefaction apparatus in the manufacture of iron. The discharge of molten metal may take place in an asbestos tent filled with nitrogen or the region round the discharge may be flooded with a large volume of nitrogen, 5 to 10 per cent of oxygen may be added to the blast air all of which may be obtained from compressors driven by the gas turbine.
Patent GB-412063-A (GB)
Title: Dough twisting or braiding machine
IPC: A21C3/08
Filed: 1933-08-18
Abstract: A braided or twisted loaf is formed by twisting two or more rolls of dough together, the rolls being juxtaposed and held at one end and twisted together from the other.
Patent GB-1188473-A (GB)
Title: New Water-Soluble Disazo Dyestuffs and process for their Manufacture
IPC: C09B62/493
Filed: 1968-05-15
Abstract: 1,188,473. Water-soluble disazodyes. FARBWERKE HOECHST A.G. 15 May, 1968 [19 May, 1967], No. 23112/68. Heading C4P. The invention comprises water-soluble disazodyes of the general formula wherein D is a radical of a diazo component of the benzene or naphthalene series, K is a coupling component of the benzene or naphthalene series having the -NHCO- para to the azo group, X is H or alkoxy and n is 1 to 3. They are prepared by acylating the corresponding aminodisazo dye with #-[2<SP>1</SP>,2<SP>1</SP>,3<SP>1</SP>,3<SP>1</SP>-tetra fluorocyclobutyl)-acrylic acid chloride in aqueous medium preferably at 0‹-25‹ C. at pH 4 to 8. The dyes give brown shades on cellulose, wool, silk polyamides and leather.
Patent GB-1071458-A (GB)
Title: A process for treating the effluent from plants for the electro-deposition of paint
Inventor: GUY VICTOR HAROLD
IPC: C25D13/24
Filed: 1965-05-31
Abstract: Effluents from plant for painting by electrophoretic deposition are reconcentrated by reverse osmosis at a semipermeable membrane.  In examples paint solutions containing 6 and 10% non-volatile solids are used, the membranes being copper ferrocyanide deposited in porous porcelain pot, a tubular cellulose acetate membrane 0.005 in. thick supported on a glass fibre porous tube, and a 0.015 in. thick biaxially oriented polystyrene sheet supported on sintered steel. Specified pressures are 38, 200, and 300 psig respectively. Effluents arise during rinsing of painted articles which results in a diluted paint solution, and the process of the invention enables the paint to be reused.  Suitable membranes are permeable to water only and not to the other components of the solution.
Patent GB-1455419-A (GB)
Title: Flushing cisterns
IPC: E03D1/01
Filed: 1973-05-15
Abstract: 1455419 Flushing cisterns CHLORIDE SHIRES Ltd 14 May 1974 [15 May 1973] 23164/73 Heading E1C A flush is initiated by depressing a buoyant bell 30 the lower end of which moves in a cylinder defined by a pair of webs 18 extending between the front and back of the cistern, a non-return valve 39 being arranged to permit flow into, but not out of, the cylinder. The valve is a flexible flap 40 having studs on one side forming a press-fit in the bell. To provide a dual-flush, an aperture in the top of the bell communicates via a chamber 61 with a pipe 62 opening into the cistern. The aperture is closable by depressing a button 70 to close a valve spring-loaded to the open position. Thus, holding the button down permits a full flush whilst releasing the button admits air to the syphon when the water level falls to the bottom of pipe 62.
Patent GB-1027272-A (GB)
Title: A light valve system
IPC: H04N5/82
Filed: 1962-06-15
Abstract: 1,027,272. Light modulation apparatus. GENERAL ELECTRIC CO. June 15, 1962 [June 26, 1961], No. 23215/62. Heading H4F. [Also in Division H1] A light valve for use in a Schlieren optics projection television system comprises a light source, first light masking means, e.g. line screen, having opaque and transparent areas between the source and a light modulating medium, second light masking means disposed on the opposite side of said medium and constructed for co-operation with the first masking means to pass selectively light deviated by the modulating medium; a first array of lenses between the source and the modulating medium for focusing light from the source on to the transparent areas of the first masking means, a second array of lenses between the first array and the modulating medium positioned to focus the lenses of the first array on the modulating medium, and further lens means between the first and second masking means to ensure that undeviated light is blocked by the second masking means. As shown, the invention is applied to a colour television system, the light valve being doubled and provided once for the green component with line screen and cylindrical lens array axes in the vertical scan direction and once for the red and blue components with line screen and lens array axes in the horizontal scan direction, the light modulating medium 10 being common to both light valves. The green component system comprises cylindrical lens arrays 28, 31 and line screens 30, 38, screen 30 having green-transmitting areas between opaque lines while screen 38 has transparent areas between magentatransmitting lines; and the red and blue components system comprises cylindrical lens arrays 32, 35 and magenta-transmitting and opaque bar grid 33 and green and transparent line grid 37. The light-modulating medium 10 consists of a thin film of a liquid such as a diphenyl silicone oil on the inner end face 11 of a continuously evacuated discharge tube and is bombarded by an electron beam from gun 16 which is subjected via electrode pairs 70, 71 and 72, 73 respectively to raster-defining vertical and horizontal scan deflections from sources 94, 96 and is modulated via electrodes 70, 71 with the green signal on a 45 Mc/s. carrier from blocks 98 . . . 101 and via electrodes 72, 73 with the red signal on a 10 Mc/s. carrier from blocks 102, 103, 104 and with the blue signal on a 14 Mc/s carrier from blocks 105, 106, 107. Dynamic focus correction is provided by unit 97. Magnetic shielding of the electron beam path is provided by a coil 15a. The light originating from a xenon lamp 19 deviated by the modulated and deformed oil film 10 is projected by lenses 40, 41 to pass through the grids 37, 38 and is reflected by a mirror 42 to form an image on a projection screen 43. Reference is also made to applying the invention to a black-and-white system using grids of transparent and opaque lines.
Patent GB-392787-A (GB)
Title: Improved method of and means for feeding water to steam boilers
IPC: F22D5/00
Filed: 1932-08-19
Abstract: 392,787. Feedwater regulators for steam boilers. KISSICK, J., White Plains, New York, U.S.A. Aug. 19, 1932, No. 23320. [Class 123 (ii).] The feed valve 17 is regulated in accordance with the water level in a chamber 6 communicating with the boiler and heated in accordance with the boiler load to generate steam the pressure of which depresses the water level in the chamber. The water in the chamber may be heated by furnace gases led off from an intermediate pass of the boiler, or by steam taken from the main 5 in front of a throttling device 13, circulated through a coil 11 and returned to the main beyond the throttling device. The steam space of the chamber is connected to the boiler steam space through a throttle valve. A cylinder 14 in free communication with the chamber contains a tube 15 filled with volatile liquid, the vapour pressure of which acts on a diaphragm actuating the feed valve. A valve 18 in the feed pipe maintains a constant pressure difference through the feed valve.
Patent GB-189746-A (GB)
Title: Improved method of and apparatus for braking motor vehicles
IPC: B60T8/52
Filed: 1922-08-29
Abstract: 189,746. Porsche, F. Nov. 26, 1921, [Convention date]. Brakes, arrangement and disposition of, and braking.-The frame and body of a vehicle are mounted to move longitudinally relatively to the braced wheels against the resistance of a spring or equivalent if the retarding force of the brakes approaches the value at which the wheels would skid and means are provided whereby the braking pressure is reduced by such movement. The links I permit the chassis, and body of the vehicle to move forwardly relatively to the front wheels and springs V against the resistance of a spring F<1>. By means of a rod ST and a lever K<1> connected to the link l this movement adjusts the point of connection of the rod G of the frontwheel brakes with the brake pedal F in a slot CF so as to reduce the leverage of the pedal. Similarly the torque tube A and back axle can move against the spring O and by the lever K<2> and projections N on the tube A adjust the one end of the rod T of the back-wheel brakes in a slot in the hand lever. Thus if during an application of the brakes the braking effort reaches a value sufficient to cause the vehicle body by its inertia to overcome the resistance of the springs F<1>, 0 the braking pressure is reduced irrespective of the force applied by the driver, and since the initial tension of the springs F', O is adjusted to correspond with a value of the braking effort somewhat less than that at which the wheels would become locked, such locking is prevented.