baber/WOPTO huggingface dataset:
Patent GB-931007-A (GB)
Title: Improvements in or relating to photographic developer compositions
Inventor: JOHN DAVID HUGH OAKLEY
IPC: G03C5/26
Filed: 1960-04-14
Abstract: 931,007. Photographic developers. MAY & BAKER Ltd. April 7, 1961 [April 14, 1960], No. 13532/60. Class 98 (2). A photographic developer concentrate comprises an aqueous solution containing 1-phenyl- 3 - pyrazolidone, hydroquinone, chlorohydroquinone, an alkali metal sulphite, and alkali such that when diluted for use the pH is 11.0- 11.8. The alkali is preferably sodium or potassium hydroxide or both, and the sulphite either sodium or potassium, or both, the preponderating ion preferably being potassium. The compositions may contain a silver halide solvent such as a thiocyanate or thiosulphate, a buffering agent such as lactic or boric acid, and/or an antifoggant such as bentrizole. In the examples, the developers contain trisodium N- hydroxyethylene-diamine-tri-actate.
Patent GB-1106340-A (GB)
Title: Packing assemblies for extremely high pressure pumps
IPC: F04B39/04
Filed: 1967-03-22
Abstract: 1,106,340. Seals. DRESSER INDUSTRIES Inc. 22 March, 1967 [29 March, 1966, No. 13565/67. Heading F2B. Packing for a plunger 25 of a compressor or pump includes a solid ring 60 at the head end and a pair of segmental rings 63 at the crank end, one of the segmental rings being provided with radial joints and the other with tangential joints. As shown, three pairs of segmental rings 63 acted on by garter springs are provided together with a further solid ring 61 and two intermediate rings 62 consisting of a combination of solid and segmental rings. the solid rings 60, 61 each being provided with radial throttling ,grooves in an end face and an annular groove in the inner surface. The rings of each pair of segmental rings 63 are arranged to break joint with each other and prevented from relative rotation by a pin on one engaging a hole in the other. Coolant is circulated through a chamber 53 and lubricant is fed down quills 56, 59.
Patent GB-662847-A (GB)
Title: Fuel supply system for internal combustion prime movers supplied with a mixture of air and fuel
IPC: F02D9/00
Filed: 1947-05-20
Abstract: 662,847. Spray carburetters ; regulating. BENDIX AVIATION CORPORATION. May 20, 1947 [June 6, 1946], No. 13584/47. Classes 7(iii), 7(v) and 7(vi) A fuel supply system comprises a pump 18 feeding a centrifugal impeller 40 which delivers into a passage 48 leading to a discharge nozzle 54 and containing a metering restriction 50, the pressure drop across which is maintained as a function of engine speed and varied in accordance with throttle valve opening. A diaphragm operated valve 66 controlling flow through the nozzle 54 maintains the metered fuel pressure in chamber 52 equal to a pressure in chamber 60 intermediate that at the inlet and outlet of the impeller 40. Chamber 60 is connected by a pipe 56 to the portion between two restrictions 68, 58 in a pipe 56<SP>1</SP> connecting the outlet and inlet of impeller 40, the restriction 68 being varied by means of a cam 86 on the throttle valve spindle 88 actuating a needle valve 70 carried by a diaphragm 76. Opening of the throttle.valve reduces the area of the restriction 68, hence reducing the pressure in pipe 56<SP>1</SP> and chamber 60, so that the valve 66 opens to reduce the metered fuel pressure in chamber 52 and increase the pressure drop across orifice 50. The impeller 40 varies the pressure in pipe 56<SP>1</SP>, and also the pressure drop across orifice 50, in proportion to the square of engine speed. A priming device 94 comprises a hand-operated piston 98 which draws in fuel from the pipe 56 and delivers through a non-return valve 104 and passage 102 tr the nozzle 54. The cam 86 may be contoured to produce slow running and full power enrichment, and the system may include the acceleration device, economizer, and temperature control described in Specification 662,837. Further, the system may feed a plurality of nozzles through a distributer as described in Specification 662,838, and a device responsive to atmospheric pressure may vary the speed of impeller 40 to provide a correction for altitude.
Patent GB-594608-A (GB)
Title: Improvements in or relating to means for temporarily attaching articles to aircraft
IPC: B64D1/06
Filed: 1945-05-30
Abstract: 594,608. Steadying loads suspended from aircraft. BLACKBURN AIRCRAFT, Ltd., and THARRATT, A. May 30, 1945, No. 13589. [Class 9 (ii)] Articles to be dropped are temporarily held beneath an aircraft by crutch arms each comprising two parts 1, 2 pivoting on a common axis, one part 2 being connected to means for adjusting the whole arm, while the other part moves freely under the influence of a spring and catch, the catch serving to lock the two parts together until both arms are brought into contact with the carried article when both catches are rendered ineffective so that the spring- loaded parts will move to a selected position when the article is released. In the construction shown each crutch arm comprises two limbs 1, 2, both pivoting on a shaft 3. The limb 2 is connected to an adjusting slide 4 on a threaded shaft 5, and carries a spring-controlled catch or latch on a pin 8, the latch springing to its extreme positions against stops 10, 11, under the action of its spring 9. The other limb 1 carries a part 15 adapted to close a gap in the aircraft wing when the limb is retracted, and is fitted with a pin 12 for moving the latch and with a pin 13 to which a spring 14 is connected. When the limbs 1 of a pair of crutches are swung downwards from their retracted position they move against the action of springs 14 until their pins 13 are engaged by the latches. Shaft 5 is now actuated to move the crutches first outwardly, to permit the positioning of a bomb or other article, and then inwardly. The tightening of the crutch arms rocks the limb 1 and the pin 12 rocks the latch over the centre position thus rendering the latch ineffective. When the load is released the limbs 1 automatically return to the retracted position, the pins 12 during this movement serving to move the latches so that they may re-engage the pins 13 in the next operation. Specification 594,609 is referred to.
Patent GB-825305-A (GB)
Title: Process for recovering rare-earth oxides
IPC: C01F17/229
Filed: 1957-04-29
Abstract: A product containing more than 60% of rare earth metal oxides is recovered from an ore or ore concentrate containing a fluoride, fluorcarbonate, oxyfluoride, borofluoride and/or silicofluoride of rare earth metals and gangue comprising baryte by heating said ore or ore concentrate at 850-1000 DEG  C. under oxidizing conditions with an amount of an alkali metal or alkali metal compound, which is converted to oxide under the reaction conditions, at least equivalent to the fluorine of the ore or ore concentrate, and leaching the treated material with water.  If necessary, to obtain the required percentage of rare earth metal oxide in the product, the residue after leaching is separated by gravity from the baryte remaining therewith.  Alkali metal compounds which may be used include carbonates, bicarbonates, nitrates, peroxides, hydroxides, nitrites and cyanides; sodium carbonate may be used in excess of the stoichiometric amount by 5-100%; rare earth metals referred to are cerium and lanthanum; in the examples a bastnasite baryte concentrate was employed.  In the reaction alkali metal fluorides are formed (with some sulphate from the baryte) and the recovery of fluorine as sodium fluoride or by precipitation with a calcium compound, as calcium fluoride, is mentioned.  U.S.A. Specification 2,735,747, which describes heating rare earth metal carbonate ores to convert them to oxides, is referred to.
Patent GB-1349044-A (GB)
Title: Electronic watch
IPC: G04G9/00
Filed: 1972-03-23
Abstract: 1349044 Electronic watches SUWA SEIKOSHA KK 23 March 1972 [24 March 1971] 13628/72 Heading G3T An electronic watch comprises a time signal producing means, information producing means, a display means (e.g. liquid crystal) and a selector for causing the display means to selectively display the time signal or the information signal. The time signal may be derived from a crystal controlled generator and the information signal either from a temperature sensor responsive to the temperature of the environment Fig.2 (not shown) or from a calculating device Fig.1 (not shown). Integrated circuit construction and field effect transistors may be employed. The display is digital.
Patent GB-1389802-A (GB)
Title: production of optically active alpha-phenylpropionaldehyde
IPC: B01J31/00
Filed: 1973-03-21
Abstract: 1389802 α-Phenyl propionaldehyde AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 21 March 1973 [6 April 1972] 13634/73 Heading C2C Optically active α-phenylpropionaldehyde is prepared by the reaction of styrene with carbon monoxide and hydrogen by causing the reaction to proceed in the presence of a rhodium catalyst and an optically active phosphine. The phosphine is used in an amount in excess of that required to produce a complex of the formula Rh.H(CO)(PR 3 ) in which PR 3  denotes the optically active phosphine. The rhodium catalyst may be metallic rhodium or a salt of an inorganic or organic acid. Suitable optically active phosphines are, e.g. methyl, -ethyl-nbutyl phosphine, phenyl-p-toluyl-#-naphthyl phosphine, methyl - benzyl - phenyl - phosphine and anisyl-methyl-phenyl-phosphine.
Patent GB-350172-A (GB)
Title: Improvements in or relating to electric hot-plates and the like
IPC: F24C15/10
Filed: 1930-05-03
Abstract: 350,172. Electric hot-plates. CREDENDA CONDUITS CO., Ltd. and DAVIS, P. W., Rood End Road, Oldbury, Birming- ham. May 3, 1930, No. 13648. [Class 39 (iii).] To enable an electric hot-plate a to be adjusted flush with the surrounding surface or hub b, it is mounted on a sub-structure c by means of a central tension screw h and surrounding compression screws l, all accessible from below in order to effect the adjustment. In the form shown, the screw h is tapped into the plate a and carries a nut i which clamps the heating element j in position. The sub-structure c is hollow and contains the electric leads. It forms a cantilever support for the hotplate, and is itself secured by the split contact studs f which engage sockets on the stove. Additional support may be provided by one or more cleats at the periphery of the hot-plate, adjustably secured by captive screws to the under surface of the hob b.
Patent GB-895831-A (GB)
Title: Improvements relating to hobbing machines
IPC: B23F23/06
Filed: 1959-04-22
Abstract: 895,831. Gear - cutting; work - drivers. CHURCHILL GEAR MACHINES Ltd., MILLS, J. A., and WEDGWOOD, P. April 25, 1960 [April 22, 1959], No. 13668/59. Class 83 (3). For splined workpieces, such as gears to be hobbed, a work-holding means comprises a headstock 11 having a bore to receive a tailstock arbor 16 having a transverse outwardlybiased pin 18 to assist in aligning splines on the arbor with spline-grooves on the work 25. The leading end of the arbor 16 has two unequal legs which straddle a driving pin 14 having a central flattened portion with rounded upper surfaces. The gears may be conveyed automatically to the rotating headstock 11, and the arbor 16 is moved down hydraulically.
Patent GB-229914-A (GB)
Title: Improved method of obtaining effects on textile fabrics
IPC: D06M15/07
Filed: 1924-06-05
Abstract: 229,914. Livesey, H., and Worrall, Ltd., J. & J. M. June 5, 1924. Liquids, treating with; designs, producing.- Pattern effects are produced on fabrics, specially dyed pile fabrics, by printing them with a solution of a cellulose ester such as cellulose acetate in an organic solvent such as acetone. The solution may be applied by a roller having a pattern in intaglio acting in conjunction with a doctor, by the use of a resist, by padding, or by spraying through a stencil. The solution may be coloured and the treated fabric may be calendered or submitted to finishing operations.
Patent GB-1430473-A (GB)
Title: Friction false-twisting device
IPC: D02G1/08
Filed: 1973-03-22
Abstract: 1430473 Friction false twisters BARMAG BARMER MACHINENFABRIK AG 22 March 1973 [22 March 1972] 13735/73 Heading DID A friction false twister comprises at least one group of three bodies of revolution 31, 32, 33, with' convex friction surfaces mounted on shafts 24, 25, 26 and at least one additional body of rotation with a friction surface 79, Fig. 5, means being be provided to rotate these bodies selectively in either direction, the additional body being rotated at a different speed from said at least one group, the bodies of rotation on at least two shafts being interchangeable in their sequence of contacting a thread. The shaft 24 is adjustable relative to the remaining shafts by means of a cylindrical cam 59, Fig. 2. The additional body 79 is rotatably mounted on shaft 26 with a belt drive from shaft 24, Fig. 5. An alternative emibodiment, Fig. 4, has three additional bodies 42, 43, 45 mounted on respective shafts a belt driven from shaft 25 via lay shaft 48. Examples with dimensions and friction surface materials are given.
Patent GB-291092-A (GB)
Title: Improvements in and relating to means for indicating at a distance electrically
IPC: G08C19/12
Filed: 1928-05-10
Abstract: 291,092. British Thomson-Houston Co., Ltd., (Assignees of Fitzgerald, A. S.). May 26, 1927, [Convention date]. Indicating.-In a system for indicating at a distance the readings of meters, &c., the meter controls a variable condenser 7 or inductance in the circuit of an oscillation-generator 2 so as to determine the frequency of the oscillations which together with oscillations of constant frequency from a generator 8, are led to a detector valve 16. The resulting beat currents may be led direct to a distant frequency indicator, or may be used to modulate a carrier current transmitted wirelessly or over power circuits to a distant station at which the rectified currents control a frequency meter. For totalizing the readings of a number of instruments at the same station, the condensers &c. controlled by each instrument may be connected in parallel to a single generator, as shown in Fig. 3. For totalizing at a central station the readings of a number of instruments at different substations 42 - - 45, Fig. 4, the corresponding frequency meters 49 at the central station may each control condensers 50 in parallel in the oscillatory circuit of an oscillation generator 51, which may be a beat oscillator, connected to a frequency indicator 46.
Patent GB-1184808-A (GB)
Title: Improvements in the Recording of Video or Analogue Signals on Magnetic Tape
IPC: G11B5/008
Filed: 1967-03-23
Abstract: 1,184,808. Transistor amplifier and limiter Circuits. AMPEX CORP. 23 March, 1967 [23 March, 1966], No. 13808/67. Heading H3T. [Also in Division G5] In an arrangement for recording a carrier which is frequency modulated with a wider or like signal on a magnetic tape the frequency modulated signal is applied to a converter circuit which produces a frequency and width modulated square-wave pulse train and this is applied to each of four channels feeding a rotary magnetic head. Each channel includes a network which cancels the reactive component of the head circuit thus making the channel substantially independent of frequency. The incoming signal is applied via a wide band transistor amplifier 24 to an emitter follower 48 which in turn feeds a paraphase amplifier stage including transistors 54, 56 and 60. The positive half cycle of the signal from transistor 54 is applied via a first isolating stage including transistors 84, 86 to a common input to the channels and the negative half cycles from transistor 56 are fed via a similar circuit 94, 96 to a second common input. In each channel the inputs are applied respectively to the bases of a pair of transistors 110, 112 of a set/reset switch and the outputs of these transistors are combined in transformer 124. The signal is then symmetrically clipped by the diodes 144, 146 and applied via an impedance matching stage including transistors 134, 136 to a coaxial line 16 feeding the rotary head. Unit 18 includes the components which form the function which is complementary to the complex impedance of the rotary transformer 178 and head 22. Coarse and fine controls 76 and 126 are provided for minimizing the 2nd harmonic distortion.
Patent GB-271874-A (GB)
Title: Improvements in high pressure steam engines
IPC: F01B17/04
Filed: 1927-05-23
Abstract: 271,874. L÷ffler, S. May 25, 1926, [Convention date]. Valve-chests.- To permit expansion due to heat, the cylinders are connected to the frame by means of bolts 9 with rocking, supporting members 10 on each side. The bolts 9 and members 10 are journaled in flanges on the cvlinder and frame by spherical cups and washers 11, 12 respectively. Feather keys 13 are also provided between the contacting parts. The cover 4 is secured by studs 3 having collars 6 thereon between which and the cover are interposed springs. Ball bearings are used in lieu of the members 10 in a modification. The Specification as open to inspection under Sect. 91 (3) (a) comprises the application of the above means to valve-chests. This subject-matter does not occur in the Specification as accepted.
Patent GB-1452807-A (GB)
Title: Proeuction of resin sheets suitable for use as electrode separators
IPC: H01M50/494
Filed: 1974-03-28
Abstract: 1452807 Porous layered resin sheets SEKISUI KAGAKU KOGYO KK 28 March 1974 [30 March 1973 (2) 5 April 1973 (2)] 13879/74 Heading C3C [Also in Division H1] A porous layered resin sheet comprises (a) an olefin resin, (b) a finely divided inorganic substance, and (c) at least one substance which is (i) a water-swellable thermoplatic resin, (ii) a water-insoluble or difficultly water-soluble hydrophilic nonionic surface active agent, and (iii) a water-insoluble or difficultly watersoluble hydrophilic anionic surface active agent, and has fine pores arranged throughout its cross-section in a plurality of layers, at least some of the pores forming open cells. The arrangement of the pores in layers is effected by stretching the sheet in at least one direction in the manufacturing process. The olefin resin may be polyethylene, polypropylene, polybutene, polybutylene or poly(4-methyl-pentene- 1); a copolymer of ethylene/propylene, ethylene/ butene, ethylene/vinyl acetate, ethylene/vinyl chloride, propylene/butene or ethylene/an acrylic acid ester, or a chlorinated or chlorosulfonated polyethylene. The inorganic substance may be silica, diatomaceous earth, carbon, mica, coal, graphite, barium sulphate, calcium hydroxide, magnesium hydroxide or barium hydroxide. The water-swellable thermoplastic resin may be polyethylene oxide or a copolymer of ethylene oxide with acrylic acid and/or methacrylic acid. The preferred nonionic surface active agents are alkylphenol-type polyethylene glycols and the copolymer of polyethylene glycol and polypropylene glycol. The preferred anionic surface active agents are of the sodium dodecylbenzenesulfonate type and sodium dialkylsulfosuccinate type. The resin sheet may additionally comprise a thermoplastic resin having a relatively poor compatibility with the olefin resin, e.g. a styrene, or vinyl chloride polymer polycarbonate, saturated polyesters and phenoxy resins and contributes to the formation of the layer structure under the stretching action. The resin sheet is manufactured by mixing and kneading the ingredients and fabricating the sheet with a calendar roll. The sheet is heated to a temperature above its softening point but below its melting point and stretched by a tenter stretcher to produce the porous layer structure. Preferably, the sheet is stretched in two different directions simultaneously. Separation tends to occur at the interface between the finely divided inorganic substance and the olefin resin, the olefin resin becoming fibrous and forming the walls of the pores, and a multiplicity of thin layers composed of the pores extending through the entire cross-section of the sheet, the surface layers of the sheet having smaller pores than the inside layers. 50-90% of the pores are open and preferably have a diameter of 0À01-5 microns. After stretching, the sheet is heat treated at a higher temperature either with the sheet fixed or in a free state. The sheet may be formed into an electrode plate.
Patent GB-442504-A (GB)
Title: Improvements in or relating to billiard tables
IPC: A63D15/00
Filed: 1934-05-08
Abstract: 442,504. Billiard tables. SEDOFF, M., 36, Rue du Fort, Hautmont, France. May 8, 1934, No. 13905. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 9, 1934]. [Class 132 (ii)] [See also Group XVIII] After inserting a coin in a slot 13 in a billiard table, a button 15 is pulled so as to raise a bar 16 for a predetermined time and permit balls, which fall through pockets 3 into runways 8, to enter numbered compartments 11, where they can be removed by hand. Plugs may be used to put pockets out of action. Oilcloth may be used for the surface at the play end 19.
Patent GB-827721-A (GB)
Title: Improvements relating to insulated joints between separately-insulated sections of high-voltage busbar
Inventor: CHRISP GEORGE FRANCIS
IPC: H02G15/26
Filed: 1955-05-13
Abstract: 827,721. Couplings. REYROLLE & CO. Ltd., A. May 10, 1956 [May 13, 1955], No. 13953/55. Class 38 (1). A joint between two separately insulated sections of bus-bar is formed by joining the protruding ends 11A, 11B and embedding them in viscous insulation 15 contained by an envelope containing or comprising non- rigid solid material capable of conforming to volumetric changes in the viscous insulation. The envelope may be of deformable neoprene; or of " expanded " neoprene 32 backed by a rigid tubular sheath 30, in which case a further deformable neoprene inner layer 31 may be provided. Alternatively or additionally compressible cushions may be located against rigid components within the envelope. The inner surface of the sleeve may be metallized and earthed, or the compressible material may be semi-conducting.
Patent GB-1163678-A (GB)
Title: Improvements in Ignition Systems for an Internal Combustion Engine.
IPC: F02P3/045
Filed: 1968-03-22
Abstract: 1,163,678. Ignition systems. ROBERT BOSCH G.m.b.H. March 22, 1968 [March 23, 1967], No. 13957/68. Heading F1B. An ignition system comprises an ignition coil 16, 18, an electronic switch 15, normally maintained in the non-conductive state, connected in series with the primary winding 16 of the ignition coil, a control device 14 for controlling the electronic switch and a contactless signal generator 13, for controlling the control device in timed relation to the rotation of the engine and thereby periodically switching on the electronic switch and switching it off again at the instant of ignition whereby current in the primary winding 16 of the ignition coil is interrupted and a high tension pulse is triggered in its secondary winding 18 for producing a spark at a sparking plug 11. The contactless signal generator and the control device are adapted to maintain the electronic switch conductive for an increasing proportion of the time interval between two successive ignition operations by advancing the instant of switching on the electronic switch relative to the instant of switching off in dependence upon engine speed at least over a part of the operating speed range of the engine. The signal generator 13 and control device may control the duration of the flow of current through the primary winding of the ignition coil in at least the lower engine speed range so that the duration is substantially constant. As shown the signal generator 13 is magnetically operable but in a modification not shown, it employs a photo-cell. Signal generators can be constructed having magnetic field dependent resistors. The ignition timing may be controlled centrifugally.