baber/WOPTO huggingface dataset:
Patent GB-2026071-A (GB)
Title: Lift slab building method
IPC: E04B1/35
Filed: 1978-07-11
Abstract: A concrete base slab in cast (Fig. 1D) around supports for columns which do not protrude above the slab's upper surface by means of a paver machine running on rails, the paver subsequently casting (Fig. 1E) the building's other floor slabs on top of the base, each slab including a collar located above the column support. The buildings columns are then inserted (Fig. 1F) through the collars into the supports and the slabs lifted to their required positions on the columns. The base of each slab may include foamed polystyrene blocks and the slab be post-tensioned by wires as disclosed and claimed in application 29,442/78. <IMAGE>
Patent GB-2001999-A (GB)
Title: Treatment of aqueous solutions of partially hydrolyzed polyacrylamides
IPC: C08J3/03
Filed: 1978-07-27
Abstract: The solutions for subsequent use in flooding oil reservoirs are sheared at a concentration below 1 kg of polyacrylamide per m<3>, at a shear rate between 20,000 and 50,000 s<-1>.
Patent GB-2006013-A (GB)
Title: Method and autoclave for sterilisation using formalin
IPC: A61L2/20
Filed: 1978-10-12
Abstract: An autoclave (10) is supplied with formaldehyde gas and water vapour by way of a vapourizer (25) and a heated conduit (31, 41). The formaldehyde is supplied to the vapourizer as formalin from a dose of formalin from a container (22). Steam is supplied through a pipe (35). The autoclave can be controlled by a programme device (27). <IMAGE>
Patent GB-2007535-A (GB)
Title: Method for Manufacturing Multi-Layer Hemodialyzers and Improved Multi-Layer Hemodialyzer Obtained thereby
IPC: B01D63/08
Filed: 1978-10-16
Abstract: The method comprises the step of forming a pack of flattened tubular membranes 4 and supporting members 5, therefore, inserting the pack into a box like open-side enclosure 13 to form a dialyzer assembly while positioning plastics rod or foil-like cores (12, Figs. 6, 7, 18, Figs. 8-10) in the open side of the enclusure to enter the open ends of the membranes, placing polythene mould caps (24 Figs, 8, 10) on the ends of the membranes, sealing the open ends of the membranes and the end spaces between the membranes and the supporting members by centrifugal counting resin of polyethylene introduced into the enclosure 13 through on apertures 17a (17), removing the cores from the enclosure to leave communication orifices between the inside of the membranes and the outside of the dialyzer assembly and securing to the open sides of the enclosure closing members e.g. 31 defining manifold spaces communicating, through the orifices, with the inside of the membranes. In the formed multi-layered hemodialyzer the manifold spaces (36) have a communication port for communicating with the space defined within the membranes which corresponds substantially to that part of the surface (29a) of sealing means (29) which is occupied by the communication apertures (30). <IMAGE>
Patent GB-2007704-A (GB)
Title: Particulate detergent compositions comprising carbonates and acid orthophosphates
IPC: C11D3/10
Filed: 1978-11-09
Abstract: A particulate alkaline detergent composition is made from over 15% to 50% of a partially neutralised alkali metal orthophosphate salt, from over 20% to 50% of an alkali metal carbonate salt and from 5% to 40% of a synthetic detergent surfactant.
Patent GB-2016140-A (GB)
Title: Portable receptacle
IPC: A47J36/30
Filed: 1979-01-22
Abstract: A heatable receptacle for refreshment comprising an outer casing (2) having an uninflammable lining and an inner container (1) of less depth than the outer casing (2) so as to form a compartment (10) for fuel (4). Air intake holes (5) and exhaust vents (6) are provided in the outer casing (2). Access to ignite the fuel (4) is by way of an air hole (5, Figure 1). The receptacle is provided with a hermetically sealable lid (not shown). <IMAGE>
Patent GB-2012908-A (GB)
Title: Clamp for Scaffolds
IPC: E04G7/14
Filed: 1979-01-31
Abstract: A clamping device, for clamping together two or more elongate members, at least one of which is hollow, such as scaffold poles comprises a plate 56 provided with a threaded aperture extending from the inner side 58a (which is shaped in conformity with the outer surface of the scaffold pole to which it is to be secured) to the outer surface and a locking member having a threaded shank which is threadly received in the aperture. The shank has means (e.g. wrench socket 70) accessible from the plate's outer surface so that the locking member's head 60 can be moved into clamping engagement with the pole. The pole has a longitudinal slot which engages the shank. The plate may have two locking members for connecting poles end to end or side by side or at right angles, two plates may be pivotally connected. <IMAGE>
Patent GB-2013980-A (GB)
Title: Heavy current switch of the sectionable type
IPC: H02B11/24
Filed: 1979-01-31
Abstract: In a withdrawable switch for high currents, a pair of rotatable shutter panels 26 are provided which, according to their angular mutual positions, allow or prevent access to the fixed terminals 5, 6 of the switch. In the withdrawn position shown the movable section 2 of the switch has its isolating contacts 12, 13 separated from fixed terminal contacts 5, 6 by the panels 26 which are moved about parallel axes 25 to lie between contacts 12, 13 when the section 2 is moved to its connected position. <IMAGE>
Patent GB-2018539-A (GB)
Title: Temperature compensation of quartz oscillators
IPC: H03L1/02
Filed: 1979-03-16
Abstract: A quartz oscillator, suitable for use in an electronic timepiece, includes an inverter 2, an input capacitor 3, and an output capacitor 4, the capacitors having capacitance-temperature characteristics of opposite slopes to compensate changes in oscillation frequency with temperature. This is stated to have the advantages over a prior art arrangement using one capacitor with positive and negative slopes in different temperature ranges that lower voltage and power are required. <IMAGE>
Patent GB-2019538-A (GB)
Title: Hand Guns
IPC: F41A9/25
Filed: 1979-03-26
Abstract: In a hand gun a slidable magazine 6 holding the rounds 8 to be fired is made part of the firing mechanism and movement of the trigger 12 serves both to align a bullet with the barrel 4 and fire it in a single squeeze. This is achieved by having the trigger linked by a lever 20 to the magazine to move the magazine, when the trigger is squeezed, to bring a bullet into a firing position in line with the barrel. The magazine has a series of racks 28 which upon movement of the magazine engage a pinion 30 connected to a spring biased hammer 32. The hammer is first cocked against the action of the spring then released to fire the bullet in the firing position. <IMAGE>
Patent GB-2018243-A (GB)
Title: Process for the production of thioxanthones
IPC: C08F2/50
Filed: 1979-04-02
Abstract: A process for the production of thioxanthones comprises reacting the corresponding o,o'-dihalogen- benzophenone with sulphur or with a metal sulphide or metalhydrosulphide with the proviso that when a metal sulphide or metalhydrosulphide is employed the reaction is carried out in a two-phase system in the presence of a phase transfer catalyst, and when the sulphur is employed the reaction is carried out in alkaline medium.
Patent GB-2020739-A (GB)
Title: Rotary cylinder internal combustion engine
IPC: F02B75/02
Filed: 1979-04-05
Abstract: A stator 1 provided in its interior with elliptical rolling paths 8, 25 contains a rotor 2 having a cylindrical outer surface and radially traversed by a cylinder sleeve 5 for a pair of radially reciprocable pistons 4 each supporting a roller 6 at its outward end engaging the elliptical rolling path 8. The rotor 2 is provided with a combustion chamber 10 open toward a distributor sleeve 11 secured to the stator 1 and provided with an inlet aperture (12), Figure 4 (not shown), and an exhaust aperture (13) as well as a spark plug 16 or a fuel injector. A lubricating and cooling oil feed circuit 30 to 33 extends through the engine and the oil flows therethrough due to the pumping produced at the rear of the pistons 4 during rotation of the rotor. <IMAGE>
Patent GB-2020892-A (GB)
Title: C.R.T. Silt Type Shadow Mask
IPC: H01J29/07
Filed: 1979-04-10
Abstract: In a color picture tube having a slit type apertured mask the slits in which are arranged in columns with the slits each column separated by webs 46, an improvement is made in web cross-section to increase electron beam transmission and to increase transmission uniformity. Specifically, the web walls on at least one side of the webs are angled generally parallel to the direction of electron beam incidence. Because of this angling, the slope of the walls relative to a surface of the mask on at least the side of the webs facing a central horizontal axis of the mask changes with changes in distance from the central horizontal axis of the mask. All portions of the slit throats (namely in each slit the most restricted opening permitting passage of an electron beam) are closer to one surface of the mask than to the center of the mask thickness dimension. This reduces the sensitivity to etching of the effective web dimension in the direction of the aperture columns. Fabrication may be by the combination of photoresist and etching techniques. <IMAGE>
Patent GB-2023729-A (GB)
Title: IC engine fuel injector apparatus
IPC: F02M69/04
Filed: 1979-06-21
Abstract: The apparatus comprises an injection valve (1), located on an internal combustion engine by a retaining device (2). The valve (1) is connected stub (11) with a connecting nipple (12), of a fuel duct, the connecting nipple (12) being located on the engine by a further retaining device (24). A seal (18, 19) is provided between stub (11) and the nipple (12). <IMAGE>
Patent GB-2036004-A (GB)
Title: Process for preparation of a terpenthene ether
IPC: C07D309/04
Filed: 1978-12-14
Abstract: The invention relates to the field of perfumes. Mixtures of cis- and trans-2 [2-methyl-prop-1-ene-1-yl]-4-methyl-tetrahydopyran containing preponderant amounts of the isomer cis are obtained by a process consisting of hydrogenation of a methylene cyclic ether of the formula  (FORMULA)  in the presence of a catalyzer made of Raney nickel or palladium to produce a mixture of cis and trans-2-[2-methyl-prop-1-ene-1-yl]-4-methyl-tetrahydropyran, the said mixture being then enriched in isomer cis by treatment with an acid agent.
Patent GB-2032611-A (GB)
Title: Heat exchanger
IPC: F28D7/00
Filed: 1979-10-01
Abstract: A heat exchanger has tubes (18, 20) arranged in a number of layers, the tubes being either interwoven or side by side. The opposite ends of the tubes are supported in respective tube support plates (14, 16) forming opposite faces of a polyhedron, for example, a cube, and each said plate has a continuous peripheral surface portion (12) which is free from tubes and which acts as a sealing face when the heat exchanger is used, for example, as a modular element in the construction of a composite heat exchanger unit. <IMAGE>
Patent GB-2034987-A (GB)
Title: Distribution of electric power
IPC: H02B5/00
Filed: 1979-10-24
Abstract: A main distribution station for the distribution of electric power includes a high voltage part (5) a medium voltage part (6) and at least one transformer (7, 8) connected between the parts. Each on part comprises multiphase feed sectors mounted so that they may be arranged together with corresponding additional feed sectors each forming a complete feed ring, wherein the high voltage feed ring is positioned axially above the medium voltage feed ring while the transformers are installed at the side of these rings. Apart from the transformers the entire main distribution station may be installed within a two storeyed tower in which the medium voltage part (6) is installed within the lower storey while the high voltage part (5) is located in the upper storey. A substation for the distribution of electric energy may include only a medium voltage part supplied by means of a cable, rather than by a transformer. <IMAGE>
Patent GB-2037405-A (GB)
Title: A reciprocating-piston compressor cylinder
IPC: F04B39/10
Filed: 1979-11-27
Abstract: This cylinder comprises a cylinder head 4 having at least one pressure chamber 6 and a valve 7 arranged between the chamber and the cylinder bore 3. To reduce the dead space at the cylinder head end of the bore the valve comprises at least two plates 8, 9 arranged in face to face relationship, each plate being provided with a through-going hole 16, 18, and a valve closure member 17 in the form of a leaf spring disposed in the hole 16 of one of the plates and arranged, in use, to control fluid flow between the holes. <IMAGE>
Patent GB-2044400-A (GB)
Title: Control mechanism
IPC: F16K31/06
Filed: 1979-12-05
Abstract: A hydraulic displacement device 4, 5, is controlled by a valve having a fixed component 10 and a moving component 9 slidable over the fixed component to close or open a port. A pre-loaded spring 11, 12 in the absence of valve opening force, will hold the moving component in the valve closed position. A loading spring 13 holds the components so that their flat surfaces are in sliding contact. A force motor 14, which may be electrically operated is capable, of exerting a force on the moving component to overcome the spring pre-load and to open the valve. The valve may be operated by pulses whereby the position of a member 1 may be accurately adjusted by frequent movement of the valve between the open and closed positions. The hydraulic lock on the movable member remains effective in spite of wear at the valve surface due to the wear compensating property of the slide valve. <IMAGE>
Patent GB-2036579-A (GB)
Title: Separating liquid mixtures
IPC: B01D17/02
Filed: 1979-12-12
Abstract: A method of, and apparatus for, separating liquids which stratify under gravity by comparing a reference hydrostatic pressure (R) (e.g. the height of an adjustable outlet (23)) with the on pressure at the base of a separation vessel (24), flowing a mixture of the liquids into the vessel, releasing the lower of the stratified liquids from the base of the vessel through a flow path (13) and outlet passage (22 and 32) when the pressure thereof exceeds the reference pressure and releasing the upper liquid from the vessel over a weir (11). Preferably the flow path (13) includes an accumulator chamber (14) which contains a volume of the lower liquid in proportion to the pressure at the base of the separation vessel. The interface between the liquids can be maintained at a predetermined height above the base by adjustment of telescopic outlet (32, 22). <IMAGE>
Patent GB-2065731-A (GB)
Title: Treatment process for utilization of rubber wood
IPC: B27K5/00
Filed: 1979-12-21
Abstract: A treatment process for utilization of rubber wood, comprising a pretreatment of boiling the rubber wood in an aqueous solution containing a surface active agent having permeating and dispersing actions, heating the rubber wood so treated under pressure in the presence of an aqueous solution containing a surface active agent and an alkaline latex dissolving agent, dehydrating the wood under reduced pressure, and thereafter drying the rubber wood wherein the surface active agent is an anion type alkyl naphthalene sodium sulfonate.
Patent GB-2042429-A (GB)
Title: Improvements in or relating to tyres
IPC: B60C9/20
Filed: 1980-01-11
Abstract: This invention relates to radial- ply tyres having a carcass 10 and crown belt 15 of the kind in which the crown belt comprises two or more superimposed layers 17-20 or pairs of layers in twisted textile cords or aromatic polyamide material arranged in more or less longitudinal directions or slightly inclined with respect to the circumferential direction. According to the invention, the aromatic polyamide cords have extension to breaking which increase from the inner layers or pairs of layers 17, 18 to the outer layers or pair of layers 19, 20 of the belt. The extension to breaking of these cords being between approximately 3 and 12%. <IMAGE>
Patent GB-2042605-A (GB)
Title: Method of Damping-Proofing Masonry Structures
IPC: E04B1/64
Filed: 1980-02-08
Abstract: A method of adapting a masonry structure (1) for a damp-proofing or rot-proofing treatment, which method comprises boring a set of blind holes (2) into the structure (1) at intervals along a course that intercepts the assumed pathway of dampness into the structure (1), laying along said course a pipe manifold (3, 5, 11) having branch spigots (4) spaced apart along its length, each spigot being adapted to enter a corresponding blind hole in the structure, positioning each spigot in the mouth of a respective blind hole, and sealing the mouth of the hole around the shank of the spigot. The pipe manifold preferably comprises a plurality of hard plastics T-pieces (3) connected together in series by lengths of soft plastics tubing (11) which unite the arms (5) of the T- pieces, the legs (4) of the T-pieces serving as the branch spigots. <IMAGE>
Patent GB-2050695-A (GB)
Title: Switch device for a timepiece
IPC: G04G5/00
Filed: 1980-02-15
Abstract: A switch structure for an electronic timepiece including a multi-position external operational member is provided. The structure includes a click lever and a switch lever, each operationally engaged with the external operational member. Rotation of the external operational member pivots the switch lever for making a first switching connection. Axial displacement of the external operational member shifts the switch lever for making a second switching action upon operation of the external operational member. In a digital electronic timepiece including the switch structure, adjustment of time may be made when the click lever is in a first position and a calendar adjustment may be made once the click lever is in a second position.
Patent GB-2048249-A (GB)
Title: Polyfluoroallyloxy Compounds Their Preparation and Copolymers Therefrom
IPC: C07C51/62
Filed: 1980-03-14
Abstract: Polyfluoroallyloxy compounds of the general formula;   <IMAGE>  wherein -X is -Cl or -F;  RF is   <IMAGE> or  -CF(R<2>)2;  -Y is -F or -CF3; R<1> is a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms, interruptable no more frequently then every second carbon atom by from 1 to 4 ether oxygen atoms, having 1 functional group selected from -CN and -OC6F5; and R<2> is -CF2COF or -CF2CN. These compounds can be prepared by reaction of a polyfluorocarbonyl compound such as a polyfluoroketone or polyfluorocarboxylic acid fluoride with fluoride ion and a polyfluoroallyl chloride, bromide or fluorosulfate. The polyfluoroallyloxy compounds can be copolymerized with ethylenically unsaturated monomers such as tetrafluoroethylene, chlorotrifluoroethylene or vinylidene fluoride to form polymers which are moldable and can be cured to fluoroelastomers.
Patent GB-2049330-A (GB)
Title: Anti-latch circuit for power output devices using inductive loads
IPC: H03F1/52
Filed: 1980-04-24
Abstract: A power output circuit is provided which is protected against latching due to voltage pulses developed by an inductive load. The circuit comprises a transistor constructed on a monolithic integrated circuit chip including a grounded semiconductor substrate (102) of one (P) type conductivity, and including collector (104) and emitter (112) regions of opposite (N) type conductivity located on the substrate and containing opposite type conductivity modifiers. The collector and emitter regions are separated by a base region (110) of the one (P) type conductivity, and the collector region is coupled to the inductive load (50). A fourth region (140) of the one (P) type conductivity, containing one type conductivity modifiers is located on the substrate in galvanic contact with the collector region. A resistive impedance (40) is coupled between the fourth region (140) and a source of reference potential (ground), and a capacitor (42) is coupled between the fourth region and the source of reference potential. The capacitor (42) and the resistive impedance (40) bias the fourth localized region (140) above ground potential so that the current created by an inductively developed voltage pulse from the load (50) will be conducted to the substrate (102) by the diode junction formed by the collector (104) of the transistor and the fourth localized region (140) under these conditions. Latching of the power amplifier or supply circuitry is thereby prevented. <IMAGE>
Patent GB-2066116-A (GB)
Title: Supporting chucks
IPC: B23Q3/10
Filed: 1980-06-16
Abstract: A device for use in the removal of a chuck from and the mounting of a chuck on a machine tool such as a lathe comprises a base (10) adapted to be placed on the bed of the machine tool, and a supporting member (18) around which the jaws of a chuck may be clamped. Thus, in use, the device is placed on the bed of the machine tool, with the supporting member within the aperture between the chuck jaws. The supporting member thus supports the chuck during disconnection from, or connection to, the headstock of the machine tool. Conveniently, the device is provided with formations (22, 26, 18;) to enable lifting of the device and a chuck on the mounting member thereof, by hand or by the use of a hoist. <IMAGE>
Patent GB-2053821-A (GB)
Title: Steering mechanism
IPC: B62D5/06
Filed: 1980-06-23
Abstract: Hydraulic power-assisted steering mechanism comprises two steering valves 60, 60' having pressure chambers 21 in permanent communication with a steering motor 3. Pistons 62, 62' have throttle-openings 37, 37' into spring chambers 11, 11'. An actuator 2 comprises pre-control valves 43, 43'. A cut-out device comprises a pressure limiting valve 70, back pressure valves 68, 68' feed-back chambers 66, 66' and throttle-openings 64, 64'. An alternative mechanical cut-out device is also described. The steering pressure is proportional to the force applied to the actuator 2 up to a cut-out point, and then rises steeply, for example for parking. <IMAGE>
Patent GB-2056615-A (GB)
Title: Fiber-reinforced coil spring
IPC: B29C53/56
Filed: 1980-06-24
Abstract: A coil spring (10) is formed of a continuous unidirectional fiber- reinforced resin tubular member (33) in which substantially all of the continuous unidirectional fibres (11) are oriented substantially at the same predetermined angle of orientation ( theta ) with respect to the center line (12) of the tubular member (33) when coiled or helically wound. In general, the continuous unidirectional fibers (11) are 15 DEG  to 75 DEG  with respect to the center line (12) of the helically wound tubular member. <IMAGE>
Patent GB-2078607-A (GB)
Title: The use of gumwood as a veneer in the manufacture of plywood
IPC: B27K5/00
Filed: 1980-06-24
Abstract: A gumwood log is boiled in a solution containing a surface active agent and a latex solvent, the treated log is then cut into veneer sheets, the cut sheets are heated in a solution containing latex solvent in an autoclave under pressure and then at a lower pressure in a solution containing an insecticide. The veneer sheets are then dried and are subsequently formed into plywood in a known manner.
Patent GB-2080654-A (GB)
Title: Improvements in or relating to radar systems
IPC: G01S7/02
Filed: 1980-07-21
Abstract: A radar system, e.g. for distinguishing a target from clutter, comprises a transmitter TX arranged to transmit a signal comprising two orthogonally polarised waves and a receiver system RX for receiving from targets the signal after reflection, the receiver system comprising means 18 responsive to the received signal for providing, for each of the waves, a resultant signal derived in dependence upon the phase difference between the copolar and cross polar constituents of the received signal, and means 21 for comparing the resultant signals and for providing, in dependence upon the results of the comparison, an output signal indicative of the character of a target. <IMAGE>