baber/WOPTO huggingface dataset:
Patent GB-2027624-A (GB)
Title: Tool for rotating a nut or bolt head
IPC: B25B13/48
Filed: 1978-08-04
Abstract: A tool for tightening or loosening nuts includes an annular socket 1 that engages the nut and has a series of bevelled gear teeth 8 along one rim 5. A pinion 13 disposed at an angle, e.g. perpendicular, to the socket 1 engages with the gear teeth and is driven by a shaft 12 the rotation of which is used to tighten or loosen a nut. The socket 1 has a groove 2 in which lies a band 3 connected by legs 9 attached to a carrier 4 for the shaft 12 which may be hand or power driven. The socket may have a nut retaining clamp. <IMAGE>
Patent GB-2038690-A (GB)
Title: Improved punch assembly
IPC: B21D28/34
Filed: 1978-11-20
Abstract: A punch assembly has a punch guide, an axially movable punch unit slidably received in the punch guide and including a punch, a punch cap and a punch head, and coil spring return means for retracting the punch after punching, the punch head and punch cap being releasably secured together by a screw-threaded engagement between a tubular extension on the punch head and a projecting portion of the punch cap. The punch head includes a striker which is adjustable by screwing and is selectively lockable in a plurality of regularly spaced positions so as to vary the length of the punch unit and thereby reduce the stroke of the ram of a punch machine to a minimum for various materials of different thicknesses. <IMAGE>
Patent GB-2014916-A (GB)
Title: Improvements relating to pneumatic tyres made from unreinforced elastic material
IPC: B60C3/04
Filed: 1979-02-21
Abstract: Pneumatic tyres made from elastic material with no reinforcements other than bead wires are constructed to substantially reduce or eliminate circumferential deformation at the top of the tyre by adopting a meridian profile of the inner wall, for at least that part of the tyre located radially outside the points E, in accordance with the equation <IMAGE>  in which: ' rho m' is the radius of the meridian curvature of a point (A) on the innerwall of the tyre, 'y' is the distance of the point A from the axis of rotation of the tyre measured parallel to the equatorial plane of the tyre, 'Re' is the distance of the point (E) of the inner wall, which is at a maximum distance from the equatorial plane, from the axis of rotation of the tyre measured parallel to the equatorial plane, ' phi ' is the angle formed by a tangent to the inner wall at point A with a line passing through point A parallel to the axis of rotation of the tyre. <IMAGE>
Patent GB-2017003-A (GB)
Title: Offset or lithographic printing process and apparatus for formation of continuous patterns
IPC: B41M1/06
Filed: 1979-03-09
Abstract: A printing process and apparatus in which a continuous pattern is printed on a continuous material using an offset plate or lithograph having a joint. The material to be printed is advanced while being printed by the plate and is then retracted before being next printed by the discontinuous plate by a distance to ensure continuous printing.
Patent GB-2017508-A (GB)
Title: Applying fluid pressure to limb
IPC: A61H23/04
Filed: 1979-03-30
Abstract: A device for applying compressive pressures to a mammal's limb from a source of pressurized fluid comprised of a first and second chamber with the first chamber being fluid impervious and the second chamber being semi-permeable for virtually continuous ventilation. The device has both a means for connecting the chambers to a source of pressurized fluid and a retaining means for positioning and directing the expansion of the chambers on to the limb to provide aid in blood circulating.
Patent GB-2025762-A (GB)
Title: Assembly Comprising Table Top and Seat
IPC: A47B85/00
Filed: 1979-06-06
Abstract: Assembly comprising at least one seat 4 or 5 and a table top 1 which can be combined to form a berth 6, 1, 7 in a manner such that the berth is at least partially constituted by the table top and is supported by part 8, 12 or 9, 13 of the seat, in which the berth is situated above that part in the seat on which the sitter's weight rests, in use. <IMAGE>
Patent GB-2033644-A (GB)
Title: Nuclear reactors
IPC: G21C15/247
Filed: 1979-09-18
Abstract: A liquid metal cooled fast breeder nuclear reactor of the pool kind has an intermediate heat exchange module 6 comprising a tube-in-shell heat exchanger 9 and an electromagnetic flow coupler 10 in the base region of the module. Primary coolant is flowed through the heat exchanger being driven by electromagnetic interaction with secondary liquid metal coolant flow effected by a mechanical pump 12. <IMAGE>
Patent GB-2162582-A (GB)
Title: A variable geometry air intake for a gas turbine engine
Inventor: PEIKERT JURGEN
IPC: F02C7/042
Filed: 1979-10-26
Abstract: A variable geometry air-intake for a two dimensional oblique shock diffuser for a gas turbine engine in a high performance aircraft, the intake having an upper ramp 1a, a lower lip 2 pivoted at 4 to the front of the base 3 of the intake, the pivoting range being subdivided into a lower subsonic-transonic operating range A of a large angle, between a lower regulating point a and an intermediate regulating point b, and an upper supersonic operating range B of a smaller angle, between the intermediate regulating point b and an upper regulating point c, an additional double-sided flap valve 6 being controlled to operate as an air inlet in the lower operating range A in accordance with the position of lip 2 and forming an air bleed operating in the upper operating range B, also in accordance with the position of lip 2. <IMAGE>
Patent GB-2069619-A (GB)
Title: Utilising energy provided by the difference in specific gravities of gases and liquids
IPC: F03B17/02
Filed: 1980-02-14
Abstract: The energy is utilised in an apparatus immersed in water, comprising eg wheel A, an endless succession of returning buckets B in driving relationship with the wheel and having an upward run of inverted buckets as a part of the succession. Air is liberated under the upward run into the buckets and the uplift force so provided is used to produce an output torque on the wheel. Another embodiment comprises an endless succession of buckets (B) attached to a chain. <IMAGE>
Patent GB-2047055-A (GB)
Title: Speech analysis system
IPC: G10L25/90
Filed: 1980-04-01
Abstract: In a formant speech analysis synthesis system, formant extraction to control a recursive digital all-pole filter encounters the problem that pole-pairs are not orderly arranged and that real poles may occur which are not representative of formants. The problem is solved by transforming the coefficients of the second-order sections of the filter to coefficients which can be easily ordered and by means of which it is simple to assign formants to the real poles.
Patent GB-2047661-A (GB)
Title: Moulded tray
IPC: B65D81/133
Filed: 1980-04-18
Abstract: A tray assembly, preferably moulded from a cellulose material, for storing bottles (37) comprises a base tray on which one or more stacking trays may be placed one on top of the other. Each tray is moulded in one-piece and has formed therein in staggered parallel rows, depressions to receive and locate the bottles (37). Each tray includes a peripheral reinforcing rib (21) and moulded-in reinforcements and the stacking trays have projecting feet (22, 30) by means of which one tray may be stacked on top of another, the construction of the trays being such that the weight of the bottles in a stack is transmitted through the stack via the bottles themselves as well as via the trays. The bare tray has feet (36) only at positions spaced from the positions of respective bottles (37) to allow the stack to stand on a flat surface. <IMAGE>
Patent GB-2050929-A (GB)
Title: Injection molding method utilizing a low shear screw
IPC: B29C45/52
Filed: 1980-05-15
Abstract: An injection molding method is described wherein the forward portion of a screw is so designed that mixing and shear of plastics material is minimized; this is advantageous when processing glass reinforced materials because high shear processing would break the fibers. Low shear processing of the material in the forward portion of an injector barrel (10) is accomplished by providing a screw (22) having a fully flighted rear portion (36) and a flightless forward portion (38); this gives an unobstructed, annular flow passage (52) formed between the outer periphery (50) of the flightless portion (38) and the inner surface (34) of the barrel (10). The material is softened by the rear portion and is forced forwardly through said passage by the pressure developed as the screw continues to rotate. <IMAGE>
Patent GB-2053903-A (GB)
Title: Optically active substituted pyridylmethyl esters of cyclopropanecarboxylic acids
IPC: A01N53/04
Filed: 1980-06-02
Abstract: Novel substituted pyridylmethyl cyclopropanecarboxylate compounds useful as insecticides have the general formula   <IMAGE> wherein each X is independently a C1-4 alkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylsulfonyl, trifluoromethyl or 3,4-methylenedioxy group, or a chlorine, fluorine or bromine atom; n is 0 or the integer 1 or 2; Y is an oxygen or sulfur atom; R is a hydrogen atom or a cyano or ethynyl group; and Z is a chlorine, fluorine or bromine group, and are derived from the d-cis or d-trans form of the 3-(2-dihaloethenyl)-2,2-dimethyl cyclopropane carboxylic acid, preferably having the d,d-cis or d,d-trans configuration.
Patent GB-2082107-A (GB)
Title: Plastics optical elements which comprise a moulded plastics material coated on one face with a photopolymerized resin
IPC: B29C35/08
Filed: 1980-08-15
Abstract: A method of duplicating a large number of plastics optical elements comprising moulding each block (1) of a plastics material in a mould tool at an elevated temperature and pressure to produce a required profile (2), allowing the block (1) to cool under pressure prior to removal and annealing the block (1) with other moulded blocks if desired, in the free state comprising further cooling followed by heating to just below the softening or glass transition point of the polymerized block, placing the block (1) in a second finishing glass mould (14) with a profile (13) filling a moulding space (16) remote to the required profile (2) with a liquid photopolymerizable resin, curing the liquid resin by irradiation with light at ambient temperatures through the mould (14) and removing the element so formed from the finishing mould (14).
Patent GB-2087541-A (GB)
Title: A kerosene stove device
IPC: F24C5/06
Filed: 1980-11-14
Abstract: A kerosene stove comprises a reservoir (20) for the kerosene, a wick holding means (32, 34) and a wick (33) detachably mounted on the reservoir, and a hood (40, Fig. 1) comprising three spaced members (41-43) mounted over the wick holding means, the inner two members (42, 43) being perforated. <IMAGE>
Patent GB-2093801-A (GB)
Title: An automatic cassette loading machine
IPC: G11B23/113
Filed: 1981-01-20
Abstract: A machine for automatically loading a length of tape from a tape supply source (1) into a tape cassette (18) of the type having a leader following a required tape path within a casing of the cassette (18) has a pivotably mounted arm (38) with a pin for engaging under the leader in the cassette as the cassette is opened, and for pulling out a length of the leader, cutter means (60, 61, 62) for cutting the said leader into two portions at a point intermediate its ends and associated with splicing means (44) for splicing a free end of the length of tape from the tape supply source (1) to one portion of the leader (51) by means of adhesive tape, a spool drive mechanism for driving the spool which carries the said one portion of the leader (51) and control means for synchronising the operation of the cutting and splicing mechanisms to cut off the wound tape when a required quantity has been wound onto the spool by the spool drive mechanism and for splicing the trailing end of the tape to the other portion of the leader cut off from the loop drawn out from the cassette. The splicing means (44) comprises a fixed block (54) and two parallel blocks (57), (58) movable together in direction B, each block having an apertured surface (63) against which the tapes can be held by suction and the cutter (60) cutting the tape along a line (59) passing between the apertured surfaces of the fixed and movable blocks. The spool driving mechanism may have a transverse flange at the end of a hollow drive shaft, the flange carrying a sealing ring and vacuum being applied via the shaft to the recess in the spool hub to ensure firm engagement of the shaft. A lid on the cassette may be automatically opened by means carried on the support panel (41). <IMAGE>
Patent GB-2094261-A (GB)
Title: Safety device
IPC: B66C23/78
Filed: 1981-03-11
Abstract: A safety device for load handling apparatus such as an elevating access platform or the like is provided to prevent overbalancing of the apparatus in operation. The device comprises a support leg (14) having a first tubular part (15) pivotally mounted within a second tubular part (16). When the leg (14) is in contact with the ground (26) the first part (15) does not contact switch (27) mounted on the second part (16) so as to extend into its interior. If the apparatus is loaded so as to tend to overbalance, the first part (15) of the leg (14) comes out of contact with the ground and pivots relative to the second part (16), thus contacting the switch (27) and thereby preventing further extension of an extendible boom of the apparatus or causing retraction thereof. <IMAGE>
Patent GB-2072059-A (GB)
Title: Domestic appliance cabinet
IPC: F16B12/08
Filed: 1981-03-18
Abstract: A domestic appliance cabinet incorporates at least one member (13) in the form of a panel, for example of precoated steel, secured to another member (12), wherein said other member is formed with at least one integral protuberance (15) which extends into an opening or recess in the panel and thereby secures them from relative movement in at least one direction, thereby avoiding the need in many cases for separate rivets or screws. The protuberance is deformed to secure the parts together. Other forms of rivet or tabs may be used. <IMAGE>
Patent GB-2096784-A (GB)
Title: Optical fibre temperature sensors
IPC: G01K5/50
Filed: 1981-04-09
Abstract: An optical temperature sensor arrangement includes a sensor element (2) providing two mutually interfering different length light paths (A, B). A change in temperature of the element causes corresponding expansion or contraction and this alters the phase relationship of the two paths. The temperature change can be determined by measurement of the changes produced in the interference pattern. The element has a focussing system to produce a pencil beam 5, a half-silvered mirror to and a plane mirror 7. in another arrangement the combined interfering beams out along another fibre optic. <IMAGE>
Patent GB-2102314-A (GB)
Title: Drills
Inventor: JERRARD-DUNNE ANDREW PETER
IPC: B23B51/10
Filed: 1981-07-24
Abstract: A drill is provided for drilling aligned holes in a sheet of material, such as asbestos cladding (26, Figure 1), and in a base (10, 22, 24) to which the sheet is to be attached with the sheet spaced from the base. The drill comprises a drill bit (52) extending from a co-axial shaft 50 of larger diameter, the shaft being provided, at the junction with the drill bit, with cutting edges 64 arranged to cut a hole of larger diameter than the drill bit. The shank 54 of the drill bit is releasably held in a recessed bore 58 in the shaft (50) by means of grub screws 60 engaging notches 62 in the shank 54. <IMAGE>
Patent GB-2079564-A (GB)
Title: Loudspeaker diaphragms
IPC: H04R7/04
Filed: 1979-08-17
Abstract: A loudspeaker diaphragm 10 includes a core member 11 formed of a hollow-centre peripheral section 11a and a centre section 11b, and having a flat front surface 11c from which a frustum-shaped side surface extends to a back end portion 11d, a cover member 15 secured to the back end portion 11d and arranged to be connected to a voice coil bobbin 16 of the loudspeaker, an outer radiation layer 12 mounted on the front surface 11c and having a relatively high resonance sharpness, and an intermediate layer 13 laminated between the front surface 11c and the outer radiation layer 12 and having a resonance sharpness lower than that of the outer radiation layer 12. <IMAGE>
Patent GB-2085022-A (GB)
Title: "Easy-clean" vinyl acetate polymer-based adhesive composition
IPC: C08L31/04
Filed: 1981-08-12
Abstract: Improved "easy-clean" vinyl acetate homo- and copolymer-based emulsion adhesives are provided by the addition thereto of specific water soluble, ionic salts. Those particular vinyl acetate based adhesives which are formulated for use in remoistening applications are further improved with respect to their "lay-flat" performance. The salts added are selected from calcium, magnesium and aluminium chloride or nitrate, ammonium chloride or acetate, and potassium acetate.
Patent GB-2086583-A (GB)
Title: Gas detector
IPC: G01N27/12
Filed: 1981-09-08
Abstract: A gas detector for detecting a target gas such as hydrogen methane or butane, detects the presence of that gas alone or when in the presence of other gases. The electrical resistance of a main gas sensing element (Sm) responds to both target and non-target gases, and the electrical resistance of an auxiliary gas sensing element (Ss) responds more to non-target gases than target gases. An alarm circuit (AL) is triggered by an alarm signal (Om2) from the main sensing element (Sm) when the gas concentration exceeds a specified level (Vm1), and a second alarm signal (Om3) generated by the auxiliary sensing element (Ss) at a lower level (Vm2) is blocked by detection of a concentration of non-target gas exceeding a specified level (Vs). The sensing elements may be mixtures of metallic oxides, e.g. (1) a mixture of indium oxide, tin oxide or ferric oxide, and palladium oxide which may further contain platinum oxide or rhodium oxide, or (2) a mixture of ZrO2, MgO and Cr2O3. <IMAGE>
Patent GB-2108244-A (GB)
Title: Weapon triggering system
Inventor: LLOYD PETER GREGORY
IPC: F42C11/00
Filed: 1981-10-08
Abstract: An automatic weapon triggering system, e.g. for a land mine, comprises pyroelectric detection means such that an object in its field of view produces signals representative of an increase over ambient temperature. The triggering system 16 (Figure 2) includes a threshold means 21 to detect local increases in target vehicle temperature at the wheel and axles, a counter 22 to count such local increases and a comparator 27 to compare them with a preset count for a particular vehicle. In a more elaborate arrangement (Figure 3) a linear array of pyroelectric detectors extend perpendicularly to the direction of the vehicle and produce signals representing a 2-dimensional thermal side-view of the vehicle. The signals are digitised and correlated with digital representations of thermal images of acceptable target objects. The triggering system may also be used with submarine mines, mortar guns and rocket launchers. A laser range finder may be included to define the range of the detection zone. <IMAGE>
Patent GB-2089138-A (GB)
Title: A spacer for supporting a heat detector cable
IPC: H02G3/04
Filed: 1981-10-19
Abstract: A spacer (1) for a heat detecting cable (14) has a moulded column (2) with a cross-section formed by a number of arms (3,4,5) projecting from a web or centre. A tie (15) on the column or a slot (46, Figure 10) in the column holds the detector cable against the column and spaced from the connection with a cable tray. The column is preferably cruciform in cross-section, but alternatively can be H-, T-, Y-, or B- shaped. <IMAGE>
Patent GB-2089341-A (GB)
Title: Busipirone Process
IPC: C07D239/36
Filed: 1981-10-27
Abstract: Busipirone of the formula   <IMAGE> is prepared in a new process wherein the 2-pyrimidinyl component thereof is introduced in a final alkylation step involving 2-halopyrimidines. Radioactive labelled busipirone can be obtained according to the process by employing 2-chloro- pyrimidine-<14>C 2-chloropyrimidine- <15> N2.
Patent GB-2088844-A (GB)
Title: Making zirconium phosphate
IPC: C01B25/37
Filed: 1981-12-09
Abstract: Crystalline alpha zirconium phosphate Zr(HPO4)2.H2O, which can selectively remove ammonia and heavy metal ions from solution by ion exchange, is made by forming a room-temperature solution of zirconyl chloride ZrOCl2 in hydrochloric acid and adding sodium fluoride; the pH is now at most 1.6, the zirconium concentration is about 0.1 M and the molar ratio sodium:zirconium is 5:1. Then, with rapid mixing, this composition is added to 15M phosphoric acid H3PO4 (molar ratio phosphate:zirconium at least 3:1). Zirconium phosphate is precipitated.
Patent GB-2113432-A (GB)
Title: Data protection system
Inventor: BALDACHIN JONATHAN
IPC: G06F1/00
Filed: 1981-12-15
Abstract: A floppy disk track normally comprises a plurality of sense segments each preceded by a synchronizing sequence, each sense segment comprising 8-bit bytes with each sense byte starting with a 1. Conventionally, the synchronizing sequence comprises 9-bit bytes, each 0 1111 1111. On reading, any of the 1's may be taken as that start of a byte, and the synchronizing bit sequence is divided into 8-bit bytes until the first 1 of the synchronizing byte is reached as the first bit of an 8-bit byte. Thereafter, the initial 0's of the synchronizing sequence are ignored and synchronism is maintained until the sense sequence is reached, which is therefore read correctly. By the invention, one or more 0's are introduced into the interior of each synchronizing byte, in different positions in successive bytes. This does not significantly affect the achieving of synchronism on reading. However, it prevents unauthorised copying of the disk into another disc, as 'bit copiers' and the like are unable to recognize the synchronizing bytes, which now contain 0's and resemble sense bytes instead of giving the easily recognizable repeated 1111 1111 sequence when read. Figure 3 shows circuitry for generating synchronizing bytes with an interior 0 moving cyclically through positions 3 to 8. <IMAGE>
Patent GB-2089720-A (GB)
Title: Injection moulding
IPC: B29C45/37
Filed: 1981-12-16
Abstract: A method of manufacturing injection moulded covers of a type having a periphery which is required to conform to the exterior surface contours of a body to which the cover is to be fitted, comprises first moulding a cover having an oversized and non-profiled periphery, then manually cutting-down and profiling the said cover until it is of the desired size and shape, reinserting it into the mould tool and injecting moulding material into the mould cavity defined where material was cut away from the first-moulded cover, removing the first-moulded cover from the mould tool whilst leaving in the tool the subsequently injected material so that the tool with the said material therein constitutes a modified mould tool, and injection moulding covers of the required periphery using the thus- defined modified mould tool. The method enables large numbers of differently, profiled covers to fit different designs of body to be produced by use of the same mould tool, and avoids the need for a specially made mould tool for each cover shape.
Patent GB-2094322-A (GB)
Title: Manufacture of rigid polyurethane foams from polyether- polyols and polyhydroxypolyphenylalkanes
IPC: C08G18/66
Filed: 1982-03-01
Abstract: Rigid polyurethane foams are obtained from a polyetherpolyol, a polyisocyanate, a blowing agent and a polyhydroxypolyphenylalkane in particular bis-(p-hydroxyphenyl)- methane or 2,2-bis-(-p- hydroxyphenyl)-propane, the polyhydroxypolyphenylalkane/ polyether polyol weight ratio being at most 1/2. Solutions of the polyhydroxypolyphenylalkane in the polyether polyol in the above weight ratio are also described. The foams possess an increased resistance to crushing forces.