baber/WOPTO huggingface dataset:
Patent GB-1152217-A (GB)
Title: Photolithographic Printing Process
IPC: G03F7/06
Filed: 1966-10-13
Abstract: 1,152,217. Photo-lithographic processes. EASTMAN KODAK CO. Oct. 13, 1966 [Oct. 14, 1965], No. 45765/66. Heading G2M. A photo-lithographic process which comprises producing a silver image by the silver salt diffusion transfer process on a hydrophilic surface, converting the image to silver halide and then treating with a dye containing a group which is capable of mordanting the dye to silver halide and another group of hydrophobic character to produce a hydrophobic dye image. Normally the silver image is produced on an anodised aluminium surface as discloseed in Specification 934, 694 and is then tenated with aqueous ferric chloride and aqueous potassium iodide to produce a silver iodide image which is treated with an aqueous solution of a triphenylnethane, azine, xanthene, acridine, azine, thiazine, anthraquinone or phthalacyanine dye to produce a hydrophobic dye image. Alternatively a mixed silver and copper iodide image may be produced by adding a copper salt to the iodide bath.
Patent GB-1530490-A (GB)
Title: Two volume water flushing toilet cistern(full flush and half flush independently controlled)and actuating mechanism
IPC: E03D1/14
Filed: 1976-12-13
Abstract: 1530490 Dual flush cisterns A H DEAKIN 13 Dec 1976 [5 Nov 1976] 46071/76 Heading E1C A dual flush w.c. cistern has independent lower and upper lift discharge valves 15, 16 on respective lower and upper outlets 21, 22 leading to a common flush pipe, the respective valve-actuating arms 7, 8 being engageable by respective spring-loaded buttons 1, 2 mounted in a detachable cover Y, and the valve-seat outlets 21, 22 being so positioned that depression of buttons 1 or 2 causes discharge to the flush pipe Z respectively of the whole or half of the cistern contents. The valves 15, 16 and their actuating arms 7, 8 have respective weights and counterweights 13, 14, 5, 6.
Patent GB-1088198-A (GB)
Title: Gravure ink for paper
IPC: C09D11/10
Filed: 1965-11-01
Abstract: A gravure ink for paper comprises a pigment dispersed in an organic solvent solution of a petroleum resin which has been prepared by a Friedel-Crafts polymerization of a steam cracked petroleum strearys boiling between -20 DEG  and 280 DEG C. and which has been reacted in the molten state with an a ,b -unsaturated dicarboxylic acid or anhydride and then reacted with an oxide, halide or hydroxide of a metal of Group II of the Mendeleef Periodic Table so as to form a salt.  The petroleum resin may be derived from an ethylenically unsaturated hydrocarbon using as catalyst a phenolate of boron fluoride and may have a bromine value of 5-80 and a Ball and Ring softening point of 50-130 DEG C. The a ,b -unsaturated compound may be maleic or citraconic acid or anhydride, or fumaric or itaconic acid, and its reaction with the petroleum resin may be carried out in the presence of gum or tall-oil rosin or a phenol/ formaldehyde pre-condensate and ditert butyl peroxide.  The Group II metal compound may be calcium hydroxide or zinc oxide and its reaction with the resin adduct may be carried out in the presence of calcium acetate and also an aliphatic polyhydric alcohol, e.g. glycerol, so as to both esterify and form a salt with the carboxyl group of the resin adduct.  The ink may comprise a toluene solution of the treated resin (of viscosity 30-150 cps. at 25 DEG C.) containing 3-40% of a pigment, e.g. Carmine 6B(C.I. No. 15850).
Patent GB-1284422-A (GB)
Title: Active memory
Inventor: SAUVAN JACQUES LOUIS
IPC: G06F12/00
Filed: 1969-09-18
Abstract: 1284422 Determining optimum path J L SAUVAN 18 Sept 1969 [19 Sept 1968] 46106/69 Heading G4A A memory system is functionally structured to handle interrelationships between parameter valves. The disclosure is essentially as in Specification 1,284,421 (referred to).
Patent GB-1441404-A (GB)
Title: Ducts comprising sound-energy diminishing barriers
IPC: G10K11/172
Filed: 1973-10-03
Abstract: 1441404 Gas turbine ducted fan engines - silencing GENERAL ELECTRIC CO 3 Oct 1973 [19 Oct 1972] 46209/73 Headings F1B F1G and F1J] The invention relates to a duct through which a stream of fluid is passing having a sound-absorbing member disposed therein and is described with reference to the fan duct 18 of a gas turbine ducted fan engine. The engine comprises a ducted fan 16 having blades 28 disposed within a duct defined by a fan casing 12, a series of sound-absorbing members 32 being disposed on the inner surface 13 of the fan casing upstream of the fan blades 28. Each sound-absorbing member comprises a pair of side walls 34, 36, substantially radially disposed but inclined towards each other so that the walls meet at a point 38 radially inwardly of the surface 13 of the fan casing. The space between the walls is filled with sound-absorbing means 44 which forms resonance chambers the lengths of which decrease from the outer end to the inner. The member 32 is of aerofoil form and is spaced upstream of the fan blades by a distance equal to at least twice the chord length of the fan blades. The face, 34 is covered by a resistive sheet 46 and the face 36 by a solid sheet 48, the sound energy approaching the face 34 in a spiralling form. In a second embodiment a solid partition (52) is disposed between the side faces 34, 36 of the member 32, and each face is covered by a resistive sheet 46, (50). The wall of the fan duct 18 is lined with sound-absorbing material 54.
Patent GB-1092625-A (GB)
Title: Process for preparing ammonia and chlorine from ammonium chloride
Inventor: BOTTON ROGER
IPC: B01J27/10
Filed: 1964-11-13
Abstract: Ammonia and chlorine are prepared from ammonium chloride by the process of 1,040,609 where NH4Cl is decomposed by heating in contact with a mass containing partially reduced iron or manganese oxide and an alkali metal chloride liberating ammonia and passing free oxygen over the residual mixture to oxidize it and liberate chlorine gas, the catalytic mass also containing (as an improvement of 1,040,609) a copper compound which is converted under the conditions of the process into cupric oxide or chloride. Preferred constituents of the mass are potassium chloride, iron or manganese sesquioxide, such that the molecular ratio KCl:Fe2O3 or Mn2O3 is 0.2 to 2.5, and cuprous chloride such that the molecular ratio of copper compound to iron or manganese oxide is 0.3 to 1.0.  The mass may also include an inert solid diluent, e.g. silica, and one or more rare earth metal salts.
Patent GB-992478-A (GB)
Title: Improvements in hydraulic teletransmission systems
Inventor: HEGENBART HORST
IPC: F15B7/06
Filed: 1963-12-02
Abstract: 992, 478. Dynamometers; pressure gauges; linear-dimension gauges. D. HOFMANN. Dec. 2, 1963, No. 47556/63. Headings G1L, G1M and G1W. In a hydraulic teletransmission system comprising transmitter and receiver pistons 4, 8, moving in hydraulically connected cylinders 6, 7, the piston rods 3, 10, move in anti-friction bearings 2, 11 and the cylinders 6, 7 are each sealed by a flexible tubular diaphragm arranged to roll over the cylindrical surface of the corresponding piston 4, 8 during movement. The bearings may comprise a plurality of axial rows of balls spaced circumferentially. A spring 9 acting on the receiver piston 8 may be a pressure measuring spring or merely a return spring. The diameters of the pistons 4, 8 differ and may be selected to vary the relative movements of the piston over a wide range.
Patent GB-1222490-A (GB)
Title: Improvements relating to the cooling of power cables
Inventor: MOLE GEORGE
IPC: H02G9/06
Filed: 1968-02-21
Abstract: 1,222,490. Cooling cables. ELECTRICAL RESEARCH ASSOCIATION. 21 Feb., 1968, No. 47936/70. Divided out of 1,219,566. Heading H2C. A method of cooling underground power cables 1 comprises immersing the cables in water and causing air to bubble upwardly through the water to remove water vapour resulting from the effect of heat abstracted from the cables. The cables are completely immersed in water 20 within a water-tight channel 13 and are supported by cable hangers 14. Along a sloping route, a system of weirs (not indicated) may be provided for maintaining a sufficient supply of water. Air is bubbled through conduit 8 and the water vapour escapes through a concrete cover 4.
Patent GB-1130370-A (GB)
Title: Esters of 6-aminopenicillanic acid
Inventor: BAMBERG PETER
IPC: C07D499/32
Filed: 1965-11-12
Abstract: 1,130,370. 6 - Aminopenicillanic acid esters. ASTRA A.B. 8 Nov., 1966 [12 Nov., 1965], No. 48208/65. Heading C2A. The invention relates to esters of 6-aminopenicillanic acid of formula where R represents a phenacyl group which is either unsubstituted or substituted with one or more halogen atoms, C 1-6  alkyl, C 1-6 alkoxy or NO 2  groups, and their acid addition salts. The esters are prepared by reacting a salt of 6-aminopenicillanic acid and an organic or inorganic base, e.g. the sodium or triethylamine salt, with a compound of formula X-R, wherein R is as defined above and X is halogen, e.g. bromine or an organic sulphonic acid residue, e.g. p-toluene sulphonic acid residue. The resulting ester is reacted with an acid to produce the acid addition salt. Penicillins are produced by acylating the 6-amino group of the resultant ester. The phenacyl group of the penicillin may be removed by treatment with sodium or potassium thiophenoxide. Typical esters are the phenacyl, p-bromophenacyl, pmethoxyphenacyl and p-nitrophenacyl esters of 6-aminopenicillanic acid.
Patent GB-961312-A (GB)
Title: Fasteners for driving into hard materials
IPC: B25C1/14
Filed: 1960-12-09
Abstract: 961,312. Fasteners for cartridge-operated tools. ANSTALT FUR MONTAGE-TECHNIK. Dec. 9, 1960 [Dec. 11, 1959], No. 48249/63. Divided out of 961,311. Heading F3A. A washer 24 for locating a fastener in a driving tool is placed on the shank 23 of the fastener near the pointed end so that it will move up the shank when the fastener is driven in, the washer being in the form of a disc and so shaped that it will shatter on being struck. The washer is made of brittle plastics and, in the embodiment of Fig. 4, is formed with a diametral groove 26 in one side and a complementary rib 27 on the other side. In another embodiment, Fig. 5, the washer has flanges 29, 30, the outer flange 30 being of greater axial depth than the inner flange 29. The washer will shatter when struck by the front plunger of the tool during driving in of the fastener.
Patent GB-1243298-A (GB)
Title: Improvements in fluid-pressure control systems
IPC: B64C13/42
Filed: 1969-10-06
Abstract: 1,243,298. Fluid-pressure servomotor systems. UNITED AIRCRAFT CORP. Oct. 6, 1969 [Nov. 7, 1968], No. 48901/69. Heading G3P. A control system includes a first dual input device 28 having a first mechanical input 26 and a second electrical input and providing a mechanical output in accordance with a summation of the first and second inputs, a first movable member 10, means 14, 16, 26 coupling the first member to the first input, means 12 responsive to movement of the member for providing a first signal, corresponding to the position of the member, means 38 responsive to the output for providing a feedback signal, means for comparing the first and feedback signals, and means 42 coupling the comparing means to the second input. The system may be used to control the tail rotor 30 of a helicopter and substantially eliminates the effect of backlash in the mechanical elements of the system. The pilot's pedals 10 provide a first input to a hydraulic servo 14 and an electrical signal through a transducer 12 while the second input to a flapper valve of the servo is provided by a rate of turn gyroscope 22 and a buffer amplifier 24. The output from the servo is mixed in a mechanical summing device 16 with an output from the pitch control 18 which also provides an electrical signal through a transducer 20. The electrical signals are fed through summing resistors 32, 34, 36 to a high-gain amplifier 42 and the flapper valve of a hydraulic servo 28 which also receives a mechanical input from the device 16 through fuselage linkages 26. When the electrical signals through the resistors 32, 34 and 36 are equal to the feedback signal through a resistor 40, the system nulls.
Patent GB-1323779-A (GB)
Title: Load weighing valve for load-dependent braking force regulators  of vehicle braking systems
IPC: B60T8/18
Filed: 1971-10-22
Abstract: 1323779 Load sensitive valves KNORRBREMSE GmbH 22 Oct 1971 [24 Oct 1970] 49293/71 Heading F2F A load-sensitive valve, for a load-dependent braking force regulator of a braking system for a vehicle is adapted to be mounted between the suspension of the vehicle and the frame of the vehicle and comprises a chamber 3 formed in a housing section 14 for supplying pressure through a working fluid to the regulator, pressure in the chamber causing, in use, a force to act on one side of a diaphragm 2, means including a spring element 8 arranged to cause, in use, a force which is a function of the load supported by the suspension to act on the other side of the diaphragm, one side of the spring element being supported by the housing and being subjected to the said force caused by the pressure in the chamber, and the other side of the spring element being subjected to a force caused by the load supported by the suspension and a valve controllable by the diaphragm for regulating the pressure in the chamber in dependence upon the load supported by the suspension. As shown, the spring element 8 consists of two circular plates bearing by the rim thereof on an annular member 13 and engaged by an annular member 15 of smaller diameter and disposed in a groove in a pressure plate 16; a ball 7 located centrally of the element is disposed in a recess of a pressure element 6. The housing section 1 is bolted to the frame of the vehicle. In use, if the load on the vehicle is reduced the force between the ball 7 and the element 8 is reduced and the diaphragm 2 presses against the element 8 to move the member 15 relatively away from the member 13 and, under the bias of a spring 23, a pressure piston 20 follows the movement of the diaphragm and the valve 21 lifts off the valve head 22 whereby compressed air flows from chamber 3 to the air-venting cap 30 and into the atmosphere until a reduction in pressure corresponding to the reduction in vehicle load has occured in the chamber 3. With an increase in vehicle load, the members 13, 15 apply a force to the element 8 whereby the ball 7 is displaced and the diaphragm lifts the valve head 22 from the seat 24; compressed air then flows through the space 25 into the chamber 3 until a pressure level is reached in the chamber to force back through the diaphragm and ball at least the central section of the element 8 and into a neutral position relative to the housing, the springs 23, 34 then returning the piston 20 and mounting 28 so that the valve 22, 24 is closed and the compressed air supply interrupted. In a modification, the element 8 is mounted at the central region thereof and the rim is supported against the disc 5 and the members 13, 15 are replaced by annular beadlike or pointed projections integral with the housing and plate 16 respectively.
Patent GB-1475313-A (GB)
Title: Aircraft launching systems
IPC: B64F1/36
Filed: 1974-10-15
Abstract: 1475313 Runways DEFENCE SECRETARY OF STATE FOR 15 Oct 1974 [25 Oct 1973] 49669/73 Heading B7G The take-off distance and load-carrying capabilities of a STOL aircraft equipped with velocity-independent attitude controls are improved by accelerating the aircraft up an inclined runway. The aircraft remains airborne after leaving the runway by the vertical component of its forward velocity until sufficient aerodynamic lift is generated. The runway is inclined at an angle of 10 to 35 degrees to the horizontal and may be provided with tracks or rails. The runway has an upwardly curved section 4 which merges into an inclined straight section 5, and the runway may terminate at the top of the inclined section with a reverse curved lip (not shown).
Patent GB-1197478-A (GB)
Title: Improvements relating to Aqueous Emulsions of Phenolformaldehyde Resol Resins
IPC: C08G8/08
Filed: 1967-11-02
Abstract: 1,197,478. Phenol - formaldehyde resole bonded paper laminating. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Nov., 1967 [5 Nov., 1966], No. 49912/67. Heading B5N. [Also in Division C3] An aqueous emulsion of a phenol-formaldehyde resole, suitable as an adhesive for laminates is produced by reacting phenol or an alkylated phenol with excess formaldehyde in the presence of water, a tertiary amine and a primary amine (including ammonia) and/or a secondary amine, the ratio of tertiary amino groups to primary and secondary amino groups being between 1: 2.5 and 1: 3.5. The phenol may be a mixture of m- and p-cresol and the formaldehyde may be in aqueous or methanalic aqueous solution. The reaction mixture may contain 0À003 to 0À02 g. atoms of amino nitrogen per mole of the phenol. The tertiary amine may be Et 3 N and the primary/secondary amine triethylene tetramine or a single compound containing both tertiary and primary or secondary groups may be used. After reaction 1-2 gm. equivalents of an acid, e.g. aminosulphonic acid, may be added per mole of tertiary amine to neutralize it. A release agent, e.g. stearamide, methylol bisphenol A modified with butanol and castor oil and butanol as solvent may also be added. Sheets of kraft paper may be impregnated with this product, dried and laminated at 145-160 C.
Patent GB-1072330-A (GB)
Title: Electro-mechanical pressure transducer
IPC: G01L9/00
Filed: 1964-12-09
Abstract: A semi-conductive pressure transducer (see Division H1) comprises a body of semi-conductive alloy having at least two semi-conductive components, one of which is a direct transition material (i.e., a material adapted to direct transitions of electrons between valence and conduction bands) and the other an indirect transition material. The direct transition material is preferably gallium arsenide, but may also be indium antimonide, indium arsenide, indium phosphide and alloys therebetween, or lead sulphide, lead selenide or lead telluride.  The indirect transition material is preferably gallium phosphide, but may alternatively be aluminium antimonide, germanium or silicon, or a material such as gallium antimonide which has an extremely small energy gap between its two conduction band edges and is normally classed as a direct transition semi-conductor.  The Specification includes several formulae for calculating the relative proportions of the components in terms of the energy differences between the conduction band edges in the component materials and in the alloy itself.
Patent GB-506231-A (GB)
Abstract: 506,231. Directive wireless signalling. LORENZ AKT.-GES., C. June 27, 1938, No. 19007. Convention date, June 26, 1937. [Class 40 (v)] Relates to a " homing " receiver in which two overlapping signals are compared to indicate the correct route. The rectified signals a, b, Fig. 1, which are interspaced as shown at 1,1, are passed through transformers to give voltage peaks of the form shown at 2, 2., According to the invention the second " peak " of each impulse is suppressed, as indicated, by the shaded areas, leaving only single pulses, as shown at 3, 3, to be applied to the indicator device, so that their relative strengths will give an indication either to port or starboard. The suppression indicated by the shaded area is effected by means of a rotating switch K, Fig. 2, which short-circuits the indicator J at the appropriate times. The suppressing switch is geared to the keying or change-over switch (not shown) for the receiving aerial.
Patent GB-1075215-A (GB)
Title: Production of monoolefins
IPC: C07C1/30
Filed: 1963-12-23
Abstract: Quaternary carbon-containing mono-olefines are obtained by thermal dehydrohalogenation in the vapour phase at 400-650 DEG  C. in the absence of a catalyst but in contact with a surface containing at least 40% Ni and a maximum of 40% Fe of a compound of the formula <FORM:1075215/C4-C5/1> in which each R is an alkyl (including cycloalkyl) group of up to 8 carbons, there being not more than 18 carbons in all R groups together, R1 is a C2-C8 alkylene group and X is chlorine, bromine or iodine.  Preferably the halogen atom is on a carbon atom beta to the neo-carbon. The LHSV may be 0.5-20 and the pressure 50-150 p.s.i.g., nitrogen or carbon dioxide being present in amounts of 0-20 mols. per mol. of hydrogen halide produced.  In examples 1-chloro-3,3-dimethylbutane is converted to 3,3-dimethylbutene-1.
Patent GB-1537066-A (GB)
Title: Method of and apparatus for acoustic imaging
IPC: A61B8/00
Filed: 1975-12-12
Abstract: 1537066 Acoustic imaging BOARD OF TRUSTEES OF LELAND STANFORD JUNIOR UNIVERSITY 12 Dec 1975 [12 Dec 1974] 51023/75 Heading G1G A method of acoustic imaging comprises the steps of generating an acoustic beam at a first frequency, focusing the acoustic beam at a focal point, causing relative movement between an object to.be imaged and the beam whereby the focused acoustic energy impinges on the object, detecting acoustic energy resultant from such impingement with the object at a second frequency different to said first frequency, and converting the detected acoustic energy to an output electric signal. In the preferred embodiment of apparatus for the method, an ultrasonic beam B 1  at one frequency (e.g. 450 MHz) is focused by a lens comprising spherical surface 18 and fluid 20 on to an object O, generating harmonics of the one frequency and thus resulting in a higher definition focusing spot. The spot is effectively scanned across the object O, synchronizing the X and Y movements of the object support 22 with those of a CRT scan trace. The media 16, 34 may be sapphire. The transmitted beam B 2  is used via Piezo-electric transducer 36 to modulate the CRT trace thus forming the image. In another embodiment Fig. 3 (not shown) the ultrasound is transmitted through a half-reflecting layer (66) of galium, the imaging ultrasound being directed to the transducer (78) by reflection. In another embodiment Fig. 2 (not shown) a cavity resonator (46) and output probe (48) are used to deliver fundamental second and third harmonics of the beam frequency to bandpass filters (57a-c) to give a false colour display. Another modification Fig. 4 (not shown) isonifies the object at two R.F. frequencies, the frequency difference being varied to traverse resonance frequencies in the object.
Patent GB-1483054-A (GB)
Title: Nuclear fusion reactors
IPC: G21B1/11
Filed: 1973-11-05
Abstract: 1483054 Nuclear fusion reactors EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) 5 Nov 1974 [5 Nov 1973] 51300/73 Heading G6P A toroidal chamber for a nuclear fusion reactor is made up of annular modules which are divided circumferentially into identical or different sub-modules of uniform cross-section, for example as shown in Fig. 5. The modules are so shaped exernally, Figs. 2, 3 (not shown), that they fit together to form a circular toroidal chamber. Cooling pipes 12 containing helium may pass through the sub-modules which may also contain lithium 3 and graphite 4.