baber/WOPTO huggingface dataset:
Patent GB-1476996-A (GB)
Title: Composite piles for foundations of structures and a method for manufacturing the same
IPC: E02D5/62
Filed: 1974-09-24
Abstract: 1476996 Composite piles S E F I SONDAGES - ETANCHEMENTS - FORAGES - INJECTIONS 24 Sept 1974 [2 Oct 1973] 41555/74 Heading E1H A perforated pipe 2 having holes 4 is either driven into the ground or located in a previously drilled bore so as to penetrate a load bearing strata B,. and a grouting is injected at high pressure from a device inserted in the pipe to penetrate firstly the strata B r  and subsequently the upper non load bearing strata B via the holes 4 so as to anchor the pipe in the ground. If the pipe is located in a bore hole (as shown in Fig. 4), the annular space between it and the bore wall is filled with a grout sheath 3 before injection occurs. A reinforcing 6 is located within the pipe 2 which is filled with a sealing grout 7. The pipe 2 which is of steel may be vertical or inclined and the grouting material may be concrete.
Patent GB-1124138-A (GB)
Title: Method and apparatus for simulating sound fields
IPC: E04B1/82
Filed: 1966-09-19
Abstract: 1,124,138. Testing aircraft structures. K. SEIFERT. 19 Sept., 1966 [20 Sept., 1965], No. 41789/66. Heading B7G. [Also in Divisions G5 and H4] In a system for simulating a particular sound field used in studying the effects of power plant noise on the fatigue of aircraft structures, the effects of combustion chamber shape on the stability of a column of burning fuel in a jet or rocket engine, or in optimizing the acoustical design of auditoria, an initial sound field is established in a reverberation chamber having at least one flexible wall section and is then modified by varying the configuration of the flexible wall. As shown, the chamber has a flexible roof and floor comprising cavity walls bounded by rubber or nylon fabric shells. The sound absorption and reflection properties of the walls may be locally modified by filling selected compartments of the cavity with liquid or gas, providing selected portions of the chamber interior surface with a covering of porous plastics material, varying the cavity width by means of telescopic or screwed members 15, or constructing different parts of the walls from different materials. The use of paraffin wax as the cavity filling, and the provision of heating and cooling units in the cavity, permit the flexible walls to be adjusted to and then " set " in a given configuration. In use the initial sound field is generated by means of one or more sound sources 10 with directing horns 9 or, where very low frequency (up to 5 c/s) sound fields are to be simulated, by cyclically reciprocating part of the wall. The sound distribution is measured by microphones 34 and wall supports (hydraulic jacks 11 and pulley systems 12) are adjusted manually or automatically until the measured distribution corresponds to a desired distribution, e.g. to the sound field around an aircraft tail unit in take-off or landing. Displacement bodies deformable in a manner similar to that of the cavity walls may be placed in the chamber or in horns 9 in establishing the desired sound field, and the chamber may be apertured to permit passage of a travelling wave.
Patent GB-1436403-A (GB)
Title: Electric cleaner
IPC: A47L9/10
Filed: 1973-09-05
Abstract: 1436403 Vacuum cleaners MITSUBISHI DENKI KK 5 Sept 1973 [5 Sept 1972(2)] 41809/73 Heading A4F [ Also in Division B 1] A vacuum cleaner has a pleated filter 58 made of linter pulp mixed with synthetic fibres (e.g. rayon) and stiffened with phenol or melamine resin which is cleaned by raising knob 70 against spring 82 and on release inverted "T" bar 76 strikes vibratile strips 72 which strike pleated filter 58 and remove adhering dust. Air enters the cleaner at 36 passes through wire netting or cart plastics screen 48 through filter 58 to outlet 12. Dirt is removed by separating housing-halves at 28 and 22 and removing plate 40. In Figs. 5 and 6 (not shown) the pleats of the filter may be of increased width towards the fan or may be flattened on the upper portions, the width of the flat increasing towards the far end of the cleaner.
Patent GB-921944-A (GB)
Title: Improvements in or relating to the preparation of oximes
IPC: B01J23/68
Filed: 1960-12-06
Abstract: To a solution of the nitrates of silver, calcium and zinc a solution of ammonium chromate and ammonia is added in a fine stream.  The formed precipitate is filtered, dried at 350 DEG -400 DEG C., and, after cooling, triturated with acetic acid and dried.  After again triturating the product, a catalyst, which consists of the oxides of silver, zinc, chromium and calcium is finally washed and dried at 100 DEG C.  The catalyst may be supported on pumice, clay, alumina or kieselguhr.ALSO:Oximes are prepared by hydrogen reduction under pressure of a primary or secondary nitroparaffin (defined) containing at least two carbon atoms in the presence of a catalyst of the oxides of silver, zinc, chromium and calcium, followed by air or oxygen oxidation whilst the catalyst is still present.  Nitro compounds specified include nitrocyclohexane.  The reaction may be carried out in an inert solvent e.g. methanol, ethanol, isopropanol or ether.
Patent GB-1443567-A (GB)
Title: Medium for transport of components during separation by electro phoresis
IPC: G01N27/26
Filed: 1973-09-07
Abstract: 1443567 Medium for electro-phoretic separation F R ELEVITCH 7 Sept 1973 [11 Sept 1972] 42259/73 Heading C7B A medium for electro-phoretic separation of biological fluids, e.g. proteins and enzymes, contains an acid-base buffer of which the base comprises at least partly a C 2 -C 8  aliphatic amino monohydric or dihydric alchohol, e.g. 1-amino-1- methyl-propan-1-ol (others listed). The medium may be cellulose acetate or an aqueous agarose, agar, acrylamide or starch gel. The acid buffer component may be HCl to a pH from 7 to 9 and other components may include sucrose or other mono- or disaccharide (list given), PVA and EDTA. The medium may be incorporated in a device of the kind described in Specification 1211008.
Patent GB-1490139-A (GB)
Title: Water-soluble monoazo dyestuffs
IPC: C09B69/02
Filed: 1975-10-17
Abstract: 1490139 Water-soluble monoazo dyestuffs BAYER AG 17 Oct 1975 [2 Jan 1975] 42634/75 Heading C4P Novel water-soluble azo dyes have the formula where R 2  is H or alkyl and each R 4  is H, Cl or C 1-6  alkyl and each m is 1 or 2. The dyes are produced by diazotization and coupling; if necessary the product is converted to the free acid by adding mineral acid with heating if required followed by isolation. An aqueous solution or dispersion of the sulphonic acid is then adjusted to a pH above 4 by adding an alkaline potassium compound and then dried; alternatively the isolated free sulphonic acid is dried, mixed with an alkaline potassium compound and then dissolved in water. The dyes, which are preferably spray-dried, are used to colour natural and synthetic fibre materials, expecially polyamides.
Patent GB-1286806-A (GB)
Title: Improvements in or relating to video mixers
Inventor: HALL RONALD CHARLES
IPC: H04N9/76
Filed: 1968-09-10
Abstract: 1286806 Video mixers and faders EMI Ltd 10 Sept 1969 [10 Sept 1968] 42897/68 Heading H4F In a video mixer, combined video and synchronizing signals 1-3 are added in variable absolute and relative amounts using faders 5-7 and an amplifier 11, and a control signal responsive to the settings of faders 5-7 determines the phase and amplitude of further sync. signals, derived from a constant amplitude sync. input 4, which are added to the composite signal to maintain the amplitude of its sync. component substantially constant. As described, the faders may be of the type described in Specification 1,126,685, where a manually set potentiometer controls the fader D.C. control current ahd hence the output signal level. The D.C. control currents are derived from a source 9 so that the potential across a resistor 10 depends on the summated currents. The potential is fed to amplifiers 21, 22 giving outputs of opposite polarity, of which one or the other is applied, via respective diodes 27, 28, to an input 15 of a further fader 8, i.e. to give a D.C. control current dependent on the potential at 10. Fader 8 is similar to units 5-7, but the manually set potentiometer is omitted. The output level of amplifier 22 controls gates 25, 26 via a switch 23 to determine which of the constant amplitude sync. signal outputs from a phase splitter 24 is fed to the fader 8. Excessive picture signal levels at the output 12 are prevented by limiting the summated currents through resistor 10 to a predetermined level determined by the design of source 9.
Patent GB-1287651-A (GB)
Title: One-piece bundling tie
IPC: F16B7/08
Filed: 1969-08-28
Abstract: 1287651 Injection moulding PANDUIT CORP 28 Aug 1969 [1 May 1969] 43004/69 Heading B5A [Also in Division E2] A method of moulding an integral one piece bundling tie as shown in Fig. 3 comprising a strap 101 with transverse teeth 115, a frame 120 at one end of the strap having a strap receiving opening 140, and a pawl 150 pivoting on a rear well 131 of the frame and having teeth 155 comprises providing a mould cavity shaped complementary to the tie by combining two mould members 310, 320 having core sections 315, 325 respectively shaped complementary to inner surfaces of the strap receiving opening 140 and the pawl 150, one core section 315 having inclined portions 357 for moulding the pawl teeth 155, the planes defined by portions 357 being disposed at small angles or parallel to the plane, defined by the core section 315 for forming the rear surface 154 of the pawl, injecting a quantity of synthetic organic resin in the mould cavity to form the tie and moving the members away from each other in a direction normal to the longitudinal axis of the strap to permit removal of the tie therefrom. As the mould member 310 is removed the pawl is rotated and the pawl teeth separate from portions 357 of the core section 315. Knock out pins 340 are displaced to eject the tie from the mould member 320. Alternatively as shown in Fig. 18, the mould member 410 is first removed, then the pins 440 are displaced to eject the tie from the mould member 420, the pawl pivoting during ejection.
Patent GB-1240688-A (GB)
Title: A method of and apparatus for producing polyethylene terephthalate
IPC: B01J6/00
Filed: 1968-09-10
Abstract: 1,240,688. Polymerisation apparatus. WERNER & PFLEIDERER. 10 Sept., 1968 [24 Oct., 1967], No. 43028/68. Heading B1X. [Also in Division C3] An apparatus for polymerizing dimethyl terephthalate and ethylene glycol, comprises a twin screw extruder 1, which forms a homogeneous paste of incoming materials and which supplies a heating and melting apparatus 6 provided with a stirrer 7, in which the reesterification begins, which in turn supplies a high-speed twin paddle stirrer 2 which completes re-esterification, and the mixture is then supplied to, and polymerized in a series of screw reactors, 3, 4 and 5 in the figure, each one being at a lower pressure than the one before (60, 1 to 10, and 0.1 to 0.3 torrs respectively) at about 280‹C. Mixture is conveyed through the apparatus by pumps 8, and is removed finally, by a screw 10.
Patent GB-907502-A (GB)
Title: Improvements in or relating to the production of polyester film
IPC: C08J7/14
Filed: 1960-12-14
Abstract: At least one surface of a hydrophobic film essentially composed of a macromolecular polyester corresponding to the reaction product of (1) at least one dihydric alcohol of the formula HOCH2-Wn-CH2OH where W is an unsubstituted or alkyl-substituted methylene or polymethylene radical of up to 8 carbon atoms or a cycloalkylene radical of 5 or 6 carbon atoms, and n is 0 or 1, and (2) at least one aromatic dicarboxylic acid of which at least 15 mole per cent is terephthalic acid and up to 20 mole per cent can be one or more aliphatic dicarboxylic acids, is treated (a) by contacting it with a solution comprising 77,0-83,0 parts by weight sulphuric acid, 14,6-22,8 parts by weight water and an amount of a chromic acid-yielding compound equivalent to 0,1-3,25 parts by weight Cr2O3 for a period up to 60 secs., and (b) by thereafter contacting the treated surface or surfaces with an excess of water.  The polyester may be a poly(polymethylene)terephthalate containing 2-8 methylene groups in each recurring unit, and the polyester film may be biaxially oriented.  The chromic acid-yielding compound may be an alkali metal dichromate, especially sodium dichromate dihydrate, and the temperature of the solution may be 0 DEG -60 DEG C., preferably 5 DEG -30 DEG C.  A preferred composition consists of 78,5-82,0 parts sulphuric acid, 15,0-20,0 parts water, and chromic acid-yielding compound equivalent to 0,25-3,0 parts Cr2O3.  Such treatment imparts adhesive and dry-stripping properties to the film.  For details of the application of the process to photographic materials (see Group XX), and for its application to laminates (see Group VIII). Specifications 578,079, 766,290, 786,176, 872,033 and U.S.A. Specification 2,376,005 are referred to.
Patent GB-1278606-A (GB)
Title: Improvements in or relating to transverse flow fans
Inventor: VOGLER HELFRIED
IPC: F04D17/04
Filed: 1969-09-02
Abstract: 1278606 Transverse-flow fans ELEKTROINSTALLATION OBERLIND VEB 2 Sept 1969 43422/69 Heading F1C A transverse-flow fan has a casing 5 which is angularly adjustable about the rotational axis, and the fan is pivotally mounted at 2 by its motor housing 4 to a supporting member 1 by which the fan may be mounted to a wall.
Patent GB-1216181-A (GB)
Title: Improvements in or relating to conduits
Inventor: WALTON JEFFREY
IPC: H02G3/04
Filed: 1966-09-29
Abstract: 1,216,181. Conduits. J. WALTON. 29 Dec., 1967 [29 Sept., 1966], No. 43637/66. Heading F2P. [Also in Division H2] A conduit comprises a hollow elongate body of rigid material, having two abutting clips, at least one of which is resilient, the lips being distendable to provide a gap between the lips enabling a blade of a draw tool attached, e.g. to a cable, to pass between said lips. The conduit may be made of steel and may be of rectangular, square or circular cross-section. Detachable covers may be provided.
Patent GB-1160086-A (GB)
Title: Semiconductor Devices and methods of making them
Inventor: KAHNG DAWON
IPC: H01L23/29
Filed: 1966-09-30
Abstract: 1,160,086. Semi-conductor devices. WESTERN ELECTRIC CO., Inc. 30 Sept., 1966 [1 Oct., 1965], No.43728/66. Heading H1K. A device is made by providing a multiapertured insulating layer on a semi-conductor substrate, treating the material exposed through the apertures to provide localized PN junctions, or other rectifying elements and connecting to one of the elements with a wire inserted into the associated aperture. In a typical case the substrate 22 (Fig. 2) is monocrystalline silicon formed in part by epitaxial growth and provided with an oxide layer 23 by oxidation or evaporation. Apertures are formed in the layer by photo-resist techniques, the opposite face of the substrate masked and gold barrier type electrodes 24 electroplated on the silicon within the apertures. The substrate is attached to header 22 in an insulating tube 29 and the gold wire 25 pressed onto the oxide layer, where it finds its way into one of the apertures. In alternative devices the gold electrode is replaced by a palladium silicide layer, or PN junctions are formed under the apertures by alloying or gaseous diffusion. In the latter case plated contacts are subsequently formed on the diffused areas. The use of germanium, A II B VI  compounds, and A III B v  compounds such as gallium arsenide, is also contemplated.
Patent GB-969358-A (GB)
Title: A new phenthiazine derivative
IPC: C07D279/18
Filed: 1961-12-06
Abstract: The invention comprises 3-nitrophenothiazine (Beilstein nomenclature) and the preparation thereof by cyclization in an anhydrous solvent medium, at elevated temperature and in the presence of an acid-binding agent, of 2-amino -21-iodo-41-nitrodiphenylsulphide. 2-Amino -21- iodo -41- nitrodiphenylsulphide is prepared from 2-aminothiophenol and 3,4-di-iodonitrobenzene.  Specification 969,359 is referred to.
Patent GB-1516189-A (GB)
Title: Couplings for pressure medium lines of compressed air brake systems of motor vehicles
IPC: F16L37/28
Filed: 1975-10-27
Abstract: 1516189 Pipe joints ROBERT BOSCH GmbH 27 Oct 1975 [6 Nov 1974] 44029/75 Heading F2G A compling head 1 at the end of a compressed air supply line 2 of a tractor vehicle braking system, and which is adapted for coupling with a counter-coupling head (not shown) on a trailer vehicle by way of a sheet metal jaw 21, comprises a supply chamber 4 accommodating a valve piston 8 with a tubular member 5 which interconnects a larger piston 6 sealed by an O- ring 9 and a smaller slide-valve piston 7 sealing against an 0-ring 10, the difference between the effective surface areas of the pistons 6, 7 serving to close the valve piston 8 against an annular seal 20 with a portion 18 of the piston 8 projecting beyond the plane of the jaw 21. When the head 1 is coupled to the counter-coupling head the valve piston 8 is pressed into the head 1 moving the piston 7 clear of the 0-ring 10 allowing air to pass to the central passage 15 in the valve piston 8 via an outlet chamber 12. A spring 14 prevents vibration. In an alternative embodiment the chamber 12 is connected to a trailer brake control valve on the tractor.
Patent GB-1090349-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F15B13/04
Filed: 1965-10-18
Abstract: 1,090,349. Fluid-pressure servomotor systems. HOUDAILLE INDUSTRIES Inc. Oct.18, 1965 [Dec.18, 1964], No.44039/65. Heading G3P. [Also in Division F2] Each piston-and-cylinder forming an assembly for operating a press or the single piston-andcylinder employed in an impact device for testing materials is supplied with actuating fluid via a fast-acting valve 19, Fig. 3, having a differential piston 49 with an obturator portion formed by two different diameter parts 66, 71 joined by an inclined shoulder 67 all of which co-operate with complementary seating areas in the bore 40 that houses the piston. The bore 40 has a supply groove 57 a pilot valve port 58 and a vent passage 63 opening thereinto whilst the passage 45 downstream of the obturator communicates directly with the associated piston-and-cylinder device 34, 27 and a vent port 73. With the differential pistons 49 in the position shown a pilot chamber 52 is supplied with pressure fluid from groove 57 by leakage past piston ring 59. Ring 60 on the smaller part of the differential piston provide for less leakage than the ring 59. The differential piston 49 is held in the position shown by pressure in pilot chamber 52 since the passage 45 into which supply fluid leaks via piston parts 66, 67 and 71 is vented through port 73. Upon actuation of a normally-closed pilot-valve 23 the pressure in chamber 52 falls and supply pressure acting on a shoulder 69 adjacent piston part 66 urges the piston 49 leftwards but the groove 57 is not connected to passage 45 until the piston has attained a high velocity in the time which elapses before the part 71 leaves its corresponding bore part whereupon a very high-pressure fluid from a pump or accumulator surges into the passage 45. As the piston 49 moves it progressively throttles the pilot-valve port 58 and the fluid is therefore trapped between the piston and a face 53 and so provides for piston deceleration and cushioning. The differential piston 49 may be returned to the position shown by a further pilot valve controlled piston 96 which may also function as a lock for the piston 49. The piston valve 23 may be solenoid operated and controlled by any means e.g. excessive pressure in the upper end of the piston-and-cylinder or movement limit switches. In a modification Fig. 2 (not shown), the piston, which has a surface 76 subject to the full pressure of the supply fluid, is in telescopic relationship to a stub 78; the pilot chamber 52a communicates with the pilot valve through a number of different size ports 58a whilst the pilot fluid is obtained from the main inlet through an adjustable restriction. The piston is urged by a spring 95 to the closed position shown.
Patent GB-1198086-A (GB)
Title: Methods and Machines for Manufacturing Bulky Paper
IPC: D21F11/00
Filed: 1967-09-27
Abstract: 1,198,086. Drying paper. SAYAMA SEISAKUSHO K.K. 27 Sept., 1967 [27 Sept., 1966], No. 44068/67. Heading F4G. [Also in Division D2] In a method of manufacturing bulky paper (e.g. toilet paper, tissue paper or sanitary paper) the paper web (e.g. formed on a Fourdrinier or cylinder unit) is sandwiched between an endless screen 16 having a multiplicity of regularly distributed projections on its surface, and a drying cylinder 3 under pressure applied by rotating press roll 9 so that the web is impressed by the projections. The screen may be formed from wire or polyester, polyamide or natural fibres. The wefts of the screen may be sinuous and the warps straight or vice versa. The screen may be resin, metal or flock coated. In one embodiment a paper web 1 formed on cylinder 6 rotating in stock vat 18 is conveyed on perforated belt 7 and has water removed therefrom by suction boxes 10. The web is pressed between rolls 8, 20 and then between endless screen 16 and drying drum 3 by roll 9. The drying drum 3 may be steam heated and covered by a hood. The belt 7 is cleaned by sprays 23.
Patent GB-1197483-A (GB)
Title: Overridable Check Valve Mechanism
IPC: F16K15/04
Filed: 1967-09-29
Abstract: 1,197,483. Valves. CATERPILLAR TRACTOR CO. 29 Sept., 1967 [21 Oct., 1966], No. 44369/67. Heading F2V. [Also in Division E1] An overridable check valve mechanism 12 in combination with a fluid driven motor M, e.g. driving the elevator of a self-loading earth scraper, which may be subjected to an external reversing force that can be blocked when it is below a predetermined magnitude, comprises a first check valve 34 defining a first unidirectional flow passage from a pump P to the motor, a second check valve 46 defining an oppositely directed unidirectional flow passage from the motor, and biasing means, e.g. a spring 53, holding the second valve closed when the reversing pressure at the motor is below the predetermined magnitude. Check valve 34 is formed by a piston 36 having flow passages 43, and loaded by a spring 39 on to a step 33. Valve 46 is carried by the valve 34, and comprises a ball closure 52. A relief valve 56 connects the system with a reservoir 17, and is set to open at a higher pressure than valve 46. An isolating valve 22 controls flow from the pump P directly back to a reservoir 17.
Patent GB-1039757-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22C9/04
Filed: 1962-11-24
Abstract: 1,039,757. Investment casting. L. S. TAYLOR and E. G. DONALDSON. Dec. 24, 1963 [Nov. 24, 1962], No. 44526/62. Heading B3F. [Also in Division B5] An investment mould for high chromium steels is made by applying to a pattern slurry coats based on non-carbonaceous refractory material, alternating with stucco layers of basically non-carbonaceous refractory, 1- 25% by weight of particulate carbonaceous material being mixed with the refractory material of each coat or each layer, or both, for the production, during the casting process, of a reducing gas at the interface of the metal and the mould. The carbonaceous material may be crushed electrode graphite, carburising compound or charcoal.