baber/WOPTO huggingface dataset:
Patent GB-2006245-A (GB)
Title: Flexible pipe
IPC: C08J5/00
Filed: 1978-09-29
Abstract: A flexible pipe suitable for use in hot and cold water supply systems and sanitary and hydraulic installations is made, for example by extrusion, from a compound based on an ethylene/propylene polymer and/or an ethylene/propylene/diene polymer. The diene may comprises ethylidene norbornene, 1,4-hexadiene or dicyclopentadiene. The compound may include any one of the conventional reinforcing agents, fillers, cross-linking agents, plastifying agents, accelerating agents and activating agents. All the components of the compound are insoluble in and/or cannot be extracted by water up to a temperature of 50 DEG C and the compound is chemically inert. The pipes, which may comprise textile or metal reinforcement inserts, therefore do not corrode and deposits cannot build up on the inner surface. Consequently the pipes are particularly suitable for supplying drinking water and for removing waste which may contain substances which react with metal pipes. The flexibility of the pipes enables fitting of pipes in awkward or confined spaces, the pipes being able to flex to relatively small radii of curvature thereby avoiding the need to manually bend the pipe to effect a connection.
Patent GB-784124-A (GB)
IPC: B29C43/00
Abstract: 784,124. Moulding metal powders. BIRMINGHAM SMALL ARMS CO., Ltd. May 27, 1955 [June 8, 1954], No. 16704/54. Class 87(2). [Also in Groups II and XXVI] A gas turbine blade or other article, having ducts therein, is made from metal powder by making a metal powder compact having therein destructible cores, and then heating the compact to sinter the metal particles together and drive off the core material as gas, the spaces previously occupied by the cores constituting ducts. The cores are made of non-metallic material that is hard but resilient at normal temperature, e.g. polystyrene or hard wax. Figs. 1 to 4 illustrate a method of forming a gas turbine blade compact in which first, Fig. 1, metal powder 1 is filled into a die 2, levelled and lightly (100 p.s.i.) compacted by a punch 3 having nine groove-forming ribs 6. This number nine is equal to the number of ducts to be formed in the blade. Into one of the grooves 5 so formed in the surface of the powder is placed a polystyrene &c. core 7, Fig. 2. Then a second layer 10 of powder is placed on top of the first layer, levelled and lightly compacted, and into two of the grooves thus formed are placed two cores 12, Fig. 3. These operations are repeated until all nine groove positions have been filled with cores, as shown in Fig. 3, the last core being shown at 14. A plain punch 15 then applies high pressure (10-30 tons p.s.i.) and compresses the powder to a compact 9, Fig. 4, which is in shape a rectangular parallelepiped, the cores taking up the positions shown. The compact 9 is then sintered, the cores passing off as gas to leave ducts. The sintered compact is machined to form a gas turbine blade shown in outline at 16, Fig. 4, and in Fig. 5. In Fig. 5, 20 are the ducts and 22 are (machined) channels for the supply of cooling fluid to the ducts. The ducts may be other than circular in cross-section, may have bulbous closed ends, and may be branched. Specification 784,123 is referred to.
Patent GB-2032345-A (GB)
Title: Continuous press and method for continuously producing consolidated material
IPC: B31D1/00
Filed: 1978-10-26
Abstract: A continuous press for consolidating one or more webs comprises a pair of rotatable spaced drums 2, 3, means for rotating at least one drum, a continuous flexible belt 1 carried on the drums, means for adjusting the spacing of the drums means 14, 15 for supplying one or more webs, one or more turning bars 16 to divert the web(s) between the belt 1 and drum 3 and a turning bar 21 to divert the pressed product to take up means 20. <IMAGE>
Patent GB-2007168-A (GB)
Title: Inner Tube Assembly for Pneumatic Tire, and Tire Incorporating Such Assembly
IPC: B60C5/24
Filed: 1978-11-08
Abstract: A multi-chamber inner tube assembly for pneumatic tires, including at least one primary tube 10, 12 and a plurality of flexible, extensible secondary chambers 14 mounted radially outwardly of the primary tubes. Each secondary chamber is connected to a primary tube by a secondary valve means 16 adapted to shut if the secondary chamber with which it is associated is punctured, so that only the air contained in that secondary chamber is lost. Each primary tube or shield means 48 surrounding the primary tube is made of a material, e.g. a composition including steel and monocrystalline carbon, which protects it from bullets. Because the primary tubes lie radially inwardly of the second chambers, the protective material does not impair the cushioning qualities of the secondary chambers. The primary tubes are secured between the tire beads by resilient filter means 20, 22. <IMAGE>
Patent GB-2011304-A (GB)
Title: Twin Blade Shaving Unit with Clean-out Member
Inventor: CHEN EVAN N
IPC: B26B21/54
Filed: 1978-12-21
Abstract: A twin blade razor unit having a unitary member 19 positioned between the pair of blades 14, 16 for both spacing the blades and ejecting shaving debris from that space. The unitary member, which may conveniently be of injection moulded plastic includes a spacer portion 18, an ejector portion 22, and biasing portion 50 connecting the ejector portion and the spacer portion for biasing the ejector portion to a normally retracted position relative to the blades and spacer. The ejector portion is manually displaceable to an advanced ejecting position and the biasing portion may be one or more beam springs. <IMAGE>
Patent GB-2015179-A (GB)
Title: Constant-Weight Feeding of Particulate Material
IPC: G01G11/10
Filed: 1979-01-05
Abstract: The present invention relates to a method and apparatus for constant- weight feeding of particulate material comprising: a chamber 5 having an adjustably controlled outlet 27, and an inlet controlled by a valve 7 which is operable to feed particulate material into said chamber at a rate sufficient to maintain said chamber full of said particulate material; means for moving particulate material from the chamber through said outlet, and comprising a non-weighing portion of a constant-weight conveyor 19 for conducting material from said outlet; and control means for controlling said outlet in dependence upon the amount of particulate material on a weighing length 29 of said constant- weight conveyor. <IMAGE>
Patent GB-2014477-A (GB)
Title: Apparatus for filling a cavity with granulated material
IPC: B65G53/36
Filed: 1979-01-10
Abstract: An apparatus for injecting granulate material into hollow walls and other cavities comprises a hopper 2 for the granulate material, a bin 4, and a blower 8 for transporting granulate from the bin suspended in air to the cavity. The hopper is separated from the bin by a partition in the form of a screen 3. There is an opening in the screen provided with a pivotable gate for adjusting the feeding of granulate into the air flow. <IMAGE>
Patent GB-2040913-A (GB)
Title: Preparation of N, N'- dialkylphenylenediamines
IPC: C07C209/36
Filed: 1979-01-15
Abstract: The reductive alkylation of a nitroaniline with a ketone in the presence of hydrogen and a hydrogenation catalyst to prepare an N, N'-dialkylphenylenediamine useful as an antioxidant or inhibitor sweetening agent in petroleum products has hitherto been performed in excess ketone as solvent because of the difficulty of dissolving nitroanilines in many solvents. However this has disadvantages and the present invention seeks to overcome those disadvantages. According to the invention the reaction is carried out in the presence of an ether solvent selected from monoethers of dihydric alcohols, diethers of dihydric alcohols and cyclic diethers. This allows the amount of ketone to be reduced to slightly above the stoichiometric amount without deleterious effects.
Patent GB-2024363-A (GB)
Title: Cleaning apparatus
IPC: F02B77/04
Filed: 1979-04-18
Abstract: A cleaning apparatus for components, particularly engine blocks, has a pre-wash station, first and second main washing stations at which the components are washed with high pressure water at a pressure above 1000 psi and preferably about 5000 psi, a air-knife drying station at which components are dried with a high volume of air at low pressure, and a transfer means for effecting the stepwise advance of components between the stations. The dirty water from the washing stations may be recycled for re-use. Reciprocable manifolds carry jets at each of the cleaning and drying stations and fixed jets are also present. <IMAGE>
Patent GB-2029846-A (GB)
Title: Producing concentrated dextrin solutions
IPC: C13K1/06
Filed: 1979-05-04
Abstract: A process for producing a concentrated dextrin solution containing from 50 to 65% by weight of dextrin comprises preparing a less concentrated dextrin solution containing 30 to 45% by weight of dextrin by enzymatic starch conversion of a starch suspension at an elevated temperature of 50-95 DEG C, cooling to a lower temperature and adding more starch, and then subjecting to further starch conversion at an elevated temperature of 80-95 DEG C. This process enables the desired product to be produced more economically than with conventional processes involving evaporation. The concentrated dextrins produced may be subsequently saccharified to give glucose or maltose solutions.
Patent GB-2026245-A (GB)
Title: Pressure control switch
IPC: H01H29/28
Filed: 1979-06-27
Abstract: A pressure control switch incorporated in fluid flow apparatus for use principally in beer dispensing systems comprises a blind tube 17 connected at its open end to a fluid flow line 13 and occupied by a gas cushion 19 which varies in volume with fluctuations in the line pressure. Two level sensors 22, 28 are provided at spaced locations along the tube, the lower level sensor 28 having contacts at preselected heights associated with a common conductor lead 27 serving to switch the pump on. The upper level sensor serving to switch the pump off, comprises a sealed cushion 19 of gas above a flexible diaphragm 18 and containing a conductive liquid 21 which bridges a pair of fixed contacts 22 in the top of the tube 17. In modifications the upper contact may be threaded and adjustable in heights or the tube 17 may have a top which is adjustably slidable in the side walls. The arrangement may be applied to a beer degassing chamber. <IMAGE>
Patent GB-2025499-A (GB)
Title: Mountings for reversible windows
IPC: E05D15/44
Filed: 1979-07-02
Abstract: A mounting for a reversible window, for guiding the movement of the sash in the window frame, comprising guides for slide members 1 at the upper edge of the sash and guides for slide members 5 on one end of each of two support arms for the sash, the guides being formed by respective exterior and interior surfaces of one and the same rail 3, which is disposed on both sides of the window frame. <IMAGE>
Patent GB-2027625-A (GB)
Title: Nut tapping machine
IPC: B23G9/00
Filed: 1979-08-06
Abstract: The nut tapping machine is driven by a drive assembly comprising two sets of shank-embracing driving devices comprising peripherally spaced radial pins one set of which is always in engagement with the tap shank (5) to drive it and each set is releasable sequentially from engagement with the tap shank to allow the passage of a blank e.g. of a hexagonal nut along the shank to the tap (4). Incorrect thread forming is avoided by providing a blank chuck assembly (7) including sets of interlinked inwardly movable jaws each having a first flat face for engagement with the exit surface of a blank to true the blank relative to the tap. The blanks are selectively and successively fed to the jaws by pivoted shaped levers. <IMAGE>
Patent GB-2039056-A (GB)
Title: Rolling- or rotational-position measuring means for spin-stabilised flying bodies and projectiles
IPC: F41G7/26
Filed: 1979-11-28
Abstract: Rolling- or rotational-position measuring means 2, for a flying body or projectile 1, comprises a sensor, arranged eccentrically to the axis of the flying body or projectile 1 for generating a signal, and an electronic circuit 3 for evaluating this signal, the sensor comprising a piezoceramic cell 4 and a mass 5 able to act upon said cell, said mass 5 being arranged on that side of the piezoceramic cell 4 which faces the axis of the flying body or projectile 1, and being movable to some extent in the radial direction. The arrangement enables information regarding the rolling or rotational position to be acquired without requiring transmission of additional data from the outside. All the components of the measuring means 2 can be combined into one subassembly. Instead of a piezoceramic cell, a piezoresistive element co-operating with a voltage source may be provided. <IMAGE>
Patent GB-2035586-A (GB)
Title: Combined exposure and development
IPC: G03B27/60
Filed: 1979-11-30
Abstract: In a projection printer (eg for producing a microfiche) in which film 20' is positioned and supported with the aid of air under pressure (as in Appen. No. 41118/76), developer is injected into the air after exposure through duct 50 and is withdrawn through duct 52 and 54. Lens system 22 is maintained free of developer by air fed through ducts 60 (which may also press the film against upper plate 46). The developer is flushed from the apparatus after development. The film may be electrophotosensitive (in apparatus as shown) or silver halide film. An electron, laser or X-ray beam may replace the lens system. <IMAGE>
Patent GB-2038335-A (GB)
Title: A method of producing vitamin B1 and its intermediate
IPC: C25B3/25
Filed: 1979-11-30
Abstract: In an electrochemical cell divided by one or more cation-exchange membranes, an aqueous acidic solution of N-[2'-methyl-4'-aminopyrimidyl-5'-] methyl-4-methyl-5- beta -hydroxyethyl- thiothiazolone (2) is electrochemically oxidized to produce vitamin B1 on the anode side and, simultaneously, an aqueous acidic solution of 2-methyl-4- amino-5-cyanopyrimidine is reduced to produce 2-methyl-4-amino-5- aminomethyl-pyrimidine on the cathode side.
Patent GB-2041500-A (GB)
Title: Fuel control valve for use with an internal combustion engine
IPC: F02M7/24
Filed: 1980-01-29
Abstract: The valve is used in conjunction with a carburettor and employs an electrostrictive strain element 100 which is deformed when voltage is applied and makes use of this deformation to open and close a valve element 203 so as directly or indirectly to control the fuel flow. The element 100 comprises several tens of electrostrictive strain element pellets and electrodes alternately interposed between the pellets. The pellets are sintered zirconate titanate or sintered zirconate-titanate with electrodes printed thereon or deposited thereon by vapour deposition. <IMAGE>
Patent GB-2044584-A (GB)
Title: Telecommunications zone apparatus
IPC: H04Q11/04
Filed: 1980-02-06
Abstract: A pulse code modulation concentrator zone apparatus comprises a plurality of concentrator units (K1 - Kn) Fig. 1 (not shown) each associated with a plurality of subscriber stations (TN). Each concentrator includes a control circuit (ST) and, for each subscriber, a subscriber circuit (TNS1-TNSn) identified by a call-in number. Call-in numbers fed from the exchange line (R1, R2) are, in turn, offered to all of the subscriber circuits of all of the concentrators, and a respective comparator (Vgl1-Vgln) compares the incoming call-in numbers with the call-in number of its respective subscriber circuit, and when there is agreement between the numbers it activates that subscriber circuit to receive the call. <IMAGE>
Patent GB-2042370-A (GB)
Title: Magnetic recording medium
IPC: G11B5/716
Filed: 1980-02-06
Abstract: A magnetic recording medium comprises a first magnetic layer containing magnetite or a cobalt- doped magnetite which is coated on a non-magnetic substrate; and a second magnetic layer coating a cobalt- doped  gamma -Fe2O3 which is coated on said first magnetic layer. The magnetic recording medium has a high recording sensitivity, a high dynamic range, less output fluctuation and especially superior sensitivity in low frequency band and superior maximum output level without a deterioration of transfer characteristics.
Patent GB-2069582-A (GB)
Title: Door locking system
IPC: G07C9/00
Filed: 1980-02-07
Abstract: A remotely controlled door locking system, e.g. for a hotel, has a lock mechanism 11 at each door with a key reader 15. Reader 15 reads the code of a key inserted therein and sends the code and data identifying the respective door over a communication line 12 to a central control 10 which compares the code and data with preassigned codes in a store 13. If the key code is correct a lock release signal is sent back on the line 12 to operate a door release 31 to allow the door to open. An alarm 27 can be generated if the code of the key is wrong or if a door switch 32 detects door opening in the absence of a door release signal. A pressure mat 35 can prevent an alarm being generated when the door is opened from the inside. <IMAGE>
Patent GB-2044095-A (GB)
Title: Suspension seats for vehicles
IPC: B60N2/50
Filed: 1980-02-27
Abstract: A vehicle suspension seat has a back rest (6) guided for vertical movement relative to a base part (1), a seat rest (5) hinged to the back rest (6) and guided for movement such that the body of the seat occupant swings about an axis through his ankles at I8.1. An armrest (11) is mounted for movement relative to the back rest (6) and seat rest (15), so as to minimise movement of the seat occupant's arm relative to a steering wheel, by pivotally supporting the armrest (11) about the instantaneous centres of rotation of the armrest relative to two parts of the seat which move pivotally with respect to each other in response to vertical movement of the back rest, e.g. centres I10.7 and I10.6.
Patent GB-2045132-A (GB)
Title: Foundry moulding
IPC: B22C1/16
Filed: 1980-03-21
Abstract: Shaped parts such as foundry moulds are produced from a moulding mass which contains a granular or powdery filler, a soluble or dispersible binding agent, a solvent or dispersant, and optionally additives the nature of which depends upon the intended use of the shaped parts, wherein the materials constituting the moulding mass are mixed at an elevated temperature and increased pressure to give a homogeneous mass in which the ratio of the binding agent mass to the volume of the solvent is close to the saturation concentration at the elevated temperature, or the binding agent dispersion is close to its coalescent conditions. The hot homogeneous moulding mass is brought into the desired shape and during or immediately after shaping, the elevated temperature and the increased pressure acting on the moulding mass are removed.
Patent GB-2052621-A (GB)
Title: Door-closer with detent means
IPC: E05F3/22
Filed: 1980-04-24
Abstract: A door-closer has a closer spindle (3) which is charged with a torque acting in the door-closing direction by a closer spring (12), a piston (23) reciprocally mounted in a cylinder (24) and operatively connected to the spindle (3) by a bell-crank lever (19), a plunger (16) and a cam disc (5), oil being provided in the cylinder, a valve passage (29) connecting the cylinder chambers to both sides of the piston (23) and a valve (31) actuated by a magnet coil which closes the valve passage (29) when the current is switched on, while as a result of the closure spring force acting upon the piston (23) a holding pressure per unit area prevails in the cylinder chamber (28) on the pressure side when the valve (31) is closed and a smaller residual pressure per unit area acts by reason of the flow resistance of the valve passage (29) when the valve (31) is opened. A switch element (39) responding to oil pressure is connected in series with the magnet coil of the valve (31), which switch element interrupts the current circuit when an excess pressure exceeding the holding pressure prevails in the cylinder chamber (28) on the pressure side and which closes the circuit again when a pressure lying below the residual pressure prevails in the cylinder chamber (28) on the pressure side. <IMAGE>
Patent GB-2056902-A (GB)
Title: Method and apparatus for pieces producing a roll of a thin band of foamed detergent or soap
IPC: C11D17/06
Filed: 1980-06-26
Abstract: The band is produced by agitating a detergent or soap mixture for a long time within a mixing chamber 3 with the addition of air through a filter 7 to form a basic, foamed, homogeneous mixture A of desired viscosity, and the mixture A is then fed to an extruder 15, 16, 17 from which it is extruded as a thin band B onto a circulating conveyor belt 19. The band B is dried using hot or warm air blowers 20, 20a and is then lifted off the conveyor belt 19, is embossed by rolls 23, 23a and is made up into a roll R. The soap is manually detachable from the roll for disposable use, thereby avoiding serious disadvantages - including lack of hygiene - associated with conventional soap pieces. <IMAGE>
Patent GB-2057142-A (GB)
Title: Nuclear magnetic resonance systems
IPC: G01R33/485
Filed: 1980-08-06
Abstract: The invention provides investigation of chemical shift for an element, e.g. phosphorus, in a region of a body. In one example resonance is excited in a line in a body slice. Frequency dispersion down the line is produced by pulsed field Gy having a switched gradient so that the frequency distribution is in steps to allow resolution of chemical shift in limited regions of the line, without overlap. Measured FID signals 1 are Fourier transformed to give spatial and chemical analysis of the line. Alternatively resonance is excited in a slice and lines are selected by a pulsed gradient to give chemical dispersion and spatial dispersion between the lines after Fourier Transformation. This is repeated for different directions of the pulsed gradient to allow analysis of a chemical line by convolution techniques and give a picture for the slice. <IMAGE>
Patent GB-2057509-A (GB)
Title: Steel making in top-blown converter
IPC: C21C5/32
Filed: 1980-08-21
Abstract: In conventional processes of making steel by blowing with oxygen in an LD vessel, the dissolved oxygen that is produced in the steel can increase the requirement for addition of alloying metals such as manganese. In order to reduce such requirement, after blowing with oxygen, the steel is blown with noble gas or nitrogen to create turbulence within the main body of the molten steel. A sample of the steel is then taken to determine whether or not the steel meets a predetermined specification. If, say, its carbon content is too high, the steps of blowing with oxygen and then nitrogen and/or noble gas are repeated as necessary. For producing steel with a low nitrogen content, noble gas rather than nitrogen is used. Moreover, each reblow with oxygen may be preceded by displacing, with noble, air which enters the steel making vessel during sampling.
Patent GB-2064872-A (GB)
Title: Fluid-pressure actuated electric switch
IPC: H01H35/24
Filed: 1980-11-13
Abstract: An electric switch for a pressure differential warning actuator comprises a housing (1), a single unitary contact element (2) including terminals (3) and fixed, rigid contact end (6), and a movable contact actuator (13) movable at its lower end by the fluid pressure piston to engage the contact (6) to close the circuit. The head of the movable contact actuator (13) is received in a slot (12) of an insulating bearing member (8) which is pressed down by a spring (9) and has a wall (16) which converges towards the contact (6) for pressing the actuator into firm wiping contact with the edge of the contact (6). <IMAGE>
Patent GB-2087202-A (GB)
Title: Improvements in and relating to ledger weights
IPC: A01K95/00
Filed: 1980-11-15
Abstract: An illuminated ledger weight 2 for use by anglers comprises a chemical light source 4 in combination with a weighting member 6 so that the combination functions not only to weight down the end of a fishing line and so maintain fishing hooks in a desired position just above the bed of the sea, river or other body of water being fished, but also emits light so as to attract fish and so improve the catch. <IMAGE>