baber/WOPTO huggingface dataset:
Patent GB-2246565-A (GB)
Title: Generation of sulphate anion radicals and their use in organic synthesis
Inventor: GILBERT BRUCE CHARLES
IPC: C07C51/305
Filed: 1991-08-02
Abstract: Sulphate anion radicals of formula SO4<-> are provided by interaction between permonosulphate and ferrous species in an aqueous acidic medium. A source of permonosulphate comprises potassium permonosulphate triple salt and a source of iron species comprises ferrous sulphate. The combination is useful in the side chain oxidation of alkyl or alkaryl substituents of an aromatic nucleous selectively to the ketone and in the case of a methyl substituent to the carboxylic acid. Preferred reaction conditions for the oxidation comprise a temperature of from 80 to about 100 DEG C, an excess of permonosulphate in aqueous acidic solution and often a mole ratio of ferrous species to permonosulphate of about 0.01:1 to 0.05:1. Alternatively or additionally, the side chain oxidation reaction can employ a ferric and/or a cupric salt.
Patent GB-2248735-A (GB)
Title: Apparatus for controlling charging of a storage battery
Inventor: JOO YEONG JIN
IPC: H01M10/44
Filed: 1991-09-18
Abstract: The apparatus initially charges a storage battery 8 in a constant current charging mode and then in a constant voltage charging mode when the charging voltage reaches a predetermined level as detected by a circuit 9. The constant voltage mode is terminated when a current sensor 11 detects an increase in charging current. The voltage detector 9 also operates switching means 10 and starts a timer 13. Switching means 10 activates current detector 11 and also resets it via a circuit 12. Timer 13 terminates the constant voltage mode if it lasts for more than a preset time. Manually applied inputs V9, V10 allow either of two preset times to be selected according to the capacity of the battery 8. <IMAGE>
Patent GB-2250477-A (GB)
Title: Needle printhead with armature stopper construction
Inventor: HORII MASAMI
IPC: B41J2/275
Filed: 1991-11-05
Abstract: As described, a dot-matrix impact printhead comprises a radially disposed array of "clapper" type armatures (14) pivoted on an armature guide (10) and controlled by springs (12), in which each armature drives a respective printing wire 15 which is supported in a guide (9, 15, 16) assembly, and in which the return motion of the armatures is arrested by a common stopper 18 which is secured to the housing via screws (20) and spacers (17) distributed about its periphery. The armatures are driven by respective coils (23) on cores (24) which extend from a common yoke sub assembly (27) which includes a printed circuit board 26. The yoke sub assembly (27) is attached to the armature sub assembly by screws (3). The spacers (17) are disclosed as separate pieces which are mechanically interlocked (jigsaw fashion) with the armature guide 10.   <IMAGE>
Patent GB-2251957-A (GB)
Title: "Wavelength (DE) multiplex optical coupler"
Inventor: OHSHIMA SHIGERU
IPC: G02B6/34
Filed: 1991-11-26
Abstract: An optical coupler has second and third single mode optical guides e.g. fibers 11, 13 arranged to be parallel with each other with a first, e.g. single mode, optical guide e.g. fiber 12 intervening therebetween, and a region 14 in which the second and third optical fibers 11, 13 are linearly symmetrical with each other about the first optical fiber 12 as the center is distributed-coupled. The coupling length of distributed coupling is set such that when first and second light waves having a wavelength  lambda 1 and a wavelength lambda 2 different from the wavelength  lambda 1 are incident on one port 12a of the first optical fiber 12, the first light wave is omitted from the other port 12b of the first optical fiber 12 and the second light wave is emitted from the second and third optical fibers 11, 13. <IMAGE>
Patent GB-2250990-A (GB)
Title: Substituted dibenzo[d,g][1,3,2]dioxaphosphocins
Inventor: PITTELOUD RITA
IPC: C08K5/53
Filed: 1991-12-17
Abstract: There are disclosed novel substituted dibenzo[d,g][1,3,2]dioxaphosphocins of formula I   <IMAGE> wherein R1 and R2 are each independently of the other C1-18alkyl, C5-12cycloalkyl, phenyl or C1-4alkyl-substituted phenyl or phenyl-C1-4alkyl, R3 is hydrogen or methyl, n is 1 or 2, and A, when n = 1, C1-30alkyl, C5-12cycloalkyl, phenyl-C1-4alkyl or C2-18alkyl which is interrupted by -NR-, -S- or -O-, and, when n = 2, is a direct bond, C1-12alkylene or C2-12alkylene which is interrupted by -NR-, -S- or -O-, and R is C1-12alkyl or phenyl. These novel compounds are suitable for stabilising organic material, especially synthetic polymers, and are particularly suitable for use as processing stabilisers (heat stabilisers) for polyolefins.
Patent GB-2262568-A (GB)
Title: Sealing in an oscillatory rotating engine.
Inventor: PARSONS BRYAN NIGEL VICTOR
IPC: F01C19/08
Filed: 1991-12-21
Abstract: Concentric rotors 20, 21 are mounted for rotation within a housing 10, each rotor having a pair of opposed lobes (30, Fig 2), 32; 31, (33, Fig 2) which sealingly engage end wall 12 and circumferential wall 13 to define working chambers (40, 41, 42, 43). The rotors are interconnected so that their relative angular velocities vary whereby the volumes of the working chambers alternately expand and contract. An end wall 11 of the housing 10 may have an axially movable plate 110 thereon with a sealing surface 111 for engagement by the rotors, means 120,121 applying a predetermined load to urge the plate towards wall 12, the predetermined load being above the minimum load applied to the plate by working chamber gas pressure. A non-return valve 135 ensures that the end plate remains in engagement with the lobes when the load applied to the plate by working chamber gas pressure exceeds the predetermined load. Alternatively, means (112, 140, 145, 146, Fig 2) may move the axis of the rotors so that the lobes sealingly engage the circumferential wall adjacent the compression stroke end, the means applying a predetermined load exceeding the minimum load in the opposite direction arising from working chamber gas pressure. A non-return valve (147, Fig 2) ensures that the lobes remain in engagement with the cylindrical wall when working gas pressure exceeds the predetermined load. <IMAGE>
Patent GB-2258345-A (GB)
Title: Microwave antenna.
Inventor: JAIRAM HARI LAJPAT
IPC: H01Q19/08
Filed: 1992-01-03
Abstract: A circular horn 5 is required to adapt to a standard square polarizer 1 having differential delay ridges 9 and is itself provided with corresponding metal ridges 13 which are continuous with the polarizer ridges 9. These horn ridges 13 are tapered at the mouth end of the horn to cooperate with the reverse taper of a dielectric cone 19 of cruciform cross section. This dielectric cone 19 has an axial hole (22), fig 5, throughout and a larger axial cylindrical recess (24) in the base of the cone. A dielectric lens 37 is fitted to the mouth of the horn 5 for beam widening and matching purposes. The lens 27 has a large bore in the rear end to receive the circular horn mouth and a small bore 23 in the front end. The two bores are separated by a thin wall of dielectric material 29 contributing significantly to the matching. A circular horn antenna is thus provided having a very wide bandwidth (6-18 GHz), good matching and return loss over the band, while at the same time achieving good power handling capacity and weight reduction. <IMAGE>
Patent GB-2263303-A (GB)
Title: Door holder
Inventor: MIN FONG SEET
IPC: E05C17/44
Filed: 1992-01-14
Abstract: A door holder for mounting on the lower edge of a door has a spring loaded telescopic plunger such that when the upper most section 2 is pushed downwards towards the floor, the lowermost section 20 is urged against the floor by means of a spring 4 between the two sections. The plunger is held in its depressed position by a known type of pivoted plate 6 having an aperture through which the plunger passes. In the particular embodiment, the plate 6 is pivotally mounted via a stirrup 24, the pivot 26 of which has limited lateral movement towards the plunger by means of a slotted hole. The plate 6 is spring urged into its gripping position by a leaf spring 8. <IMAGE>
Patent GB-2263292-A (GB)
Title: Profile measurement and control of a mine face
Inventor: HARRIS ROBERT GRAHAM
IPC: G01C7/06
Filed: 1992-01-16
Abstract: The profile of a mine face 10 is measured by taking a gyroscope 26 capable of producing an output signal representative of the profile of the mine face 10 if transported along the mine face 10 and transporting the gyroscope 26 along the mine face 10. The output signal may be used to control the operation of a collection of mine roof supports 13 in such a way as to keep the mine face 10 substantially straight. <IMAGE>
Patent GB-2253488-A (GB)
Title: Level detecting device in a plastic fuel tank
Inventor: TOZAWA YOSHIO
IPC: G01F23/36
Filed: 1992-01-31
Abstract: A level detecting device (4) in a plastics fuel tank (1) which is attached to a motor vehicle by straps 2 has the upper part of a reference rod (43) secured to a support (44) for mounting a float (41) so as to be rotatable in a predetermined angular range. The support (44) is mounted on the tank (1) through spring means for urging the lower part of the reference rod (43) toward the bottom of the tank (1). The position of the lower pant of the reference rod (43) abutting on the tank bottom is set above a part (13) of the tank bottom supported by a strap (2), thereby obtaining a reference level without substantially deforming the tank or being influenced by any deformation occurring elsewhere. The tank shown has main and sub. sides (1a, 1b) connected via a transfer pump (52) and transfer pipe (52a). The float (41) operates a resistive transducer in a case (42) via the float arm (41a). Two such arrangements are provided, in the respective sides of the tank. <IMAGE>
Patent GB-2264075-A (GB)
Title: Valve seat grinding machine
Inventor: FLETCHER GEORGE TERENCE
IPC: B24B15/03
Filed: 1992-02-12
Abstract: A valve seat grinding device for large valves (eg. steam valves) has a frame which is mounted on the valve body 11 when the valve bonnet, the spindle and the valve member have been removed from the valve. The frame has a leg 18 which depends into the body and its provided with a shaft 19 which is coaxial with the bore of the valve and the valve seat 12. A rotating carrier 20 on the shaft has a grinding disc 22 rotatably mounted at the periphery of the rotating carrier. A first drive means which rotates the rotating carrier has a low rotational speed and a second drive means drives the grinding disc at a high rotational speed, the grinding disc carrying an abrasive medium on its surface, at least in the area coincident with the valve seat to grind the valve seat as the grinding disc moves in an orbital path about the axis of the shaft. <IMAGE>
Patent GB-2265090-A (GB)
Title: Golf club support tools.
Inventor: BALCHIN GEOFFREY
IPC: A63B57/00
Filed: 1992-03-05
Abstract: A golf club support tool comprises a support member 3, 4 arranged for supporting the handle of at least one golf club, the support member being attachable to the upper end of a golfing pitch repair tool 11, 12. <IMAGE>
Patent GB-2255493-A (GB)
Title: Heating apparatus with sound actuable switch
Inventor: HADEN JOHN DENIS
IPC: G05D23/275
Filed: 1992-04-01
Abstract: An apparatus for boiling water, comprising a sound detector 25 responsive to emission of sound by the sound emitter 11 to produce a signal, a switch 22 to control the supply of energy for heating a vessel, for example a kettle, and an actuator 26 responsive to the maintenance of said signal for a predetermined period to actuate the switch to halt the supply of energy to the kettle. Heating may be by gas, electric or electromagnetic induction. <IMAGE>
Patent GB-2254861-A (GB)
Title: Thermal cut-out and attitude cut-out for electric irons
Inventor: BANNIGAN FRANCIS ROBERT
IPC: D06F75/26
Filed: 1992-04-07
Abstract: An electric iron having a heating element 3, a soleplate heated by the element and on which soleplate the iron stands in a first position during ironing, a heel on which the iron may stand in a second position when not ironing with the soleplate extending generally vertically and a first circuit means 4 (e.g. a mercury switch) adapted to pass substantially full current to the element when the iron is in the first position but not when the iron is in the second position and second circuit means 5 (e.g. a temperature sensitive switch) adapted to pass substantially less than full current when the iron is in the second position and the temperature of the soleplate is at or above a predetermined temperature. <IMAGE>
Patent GB-2256432-A (GB)
Title: Silane modified resin
Inventor: MARTIN LESLIE PHILIP
IPC: C09J151/00
Filed: 1992-05-01
Abstract: Silane-modified tackifier resins and tack modifying waxes are disclosed. The compounds are particularly useful in the formulation of adhesive compositions, especially hot melt adhesive compositions.
Patent GB-2275941-A (GB)
Title: A partition assembly
Inventor: MOON ROBERT NIGEL
IPC: E04B2/76
Filed: 1993-03-12
Abstract: A partition assembly has a timber head channel 26 and timber uprights 24. The head channel 26 has grooves 32 and 34 to receive respective edges of glazing panels. The uprights 24 have rebates 28 and 30 to receive respective edges of the panels of the glazing panels 40. A bracket secures the uprights 24 to the head channel 26. The bracket has an apertured base flange 10 which engages the base of the respective groove 32, 34 in the head channel 26. The bracket also has a pair of mutually parallel pertured arms 12 and 14 which extend from the apertured base flange 10 and which are disposed in a common plane which is perpendicular to the plane of the appertured base flange. The arms 12 and 14 engage in the rebates 28, 30 of the uprights 24. Similar brackets are used to connect the uprights to a base member and to transoms. <IMAGE>
Patent GB-2269811-A (GB)
Title: Hinged closure
Inventor: WESTON TERENCE EDWARD
IPC: B65D47/20
Filed: 1993-04-07
Abstract: A closure comprises a flexible panel 1 attached to a container 2 or cap by one or more hinges 3, the hinge or hinges defining an area which is smaller than the area of the panel and the panel being outwardly convex when in the open position and inwardly concave when pushed into the closed position (figure 2). The rim 7 of the container may be strengthened and may also deform to aid movement of the panel and to give a snap action. The panel may have longitudinally extending reinforcing grooves or ribs. The closure may be integral with the container or form part of a cap (figure 11). It may also have a sealing device such as a lip (23, figures 8 and 9) or rib and groove seal, and may have a tamper evident tear off seal which must be removed before opening. The closure may be child resistant (figures 12a-12e) and comprise a cap, biased by a spring, rotating on the closure. The closure may be manufactured from plastics, metal, cardboard, paper or a composite of these and may include a tab 27. <IMAGE>
Patent GB-2279683-A (GB)
Title: Gratings for windows and doors
Inventor: HSU CHI-LU
IPC: E06B9/01
Filed: 1993-06-23
Abstract: The present invention relates to gratings for windows and doors and the like, and more particularly to window and door gratings which are structured with a plurality of integrally formed top members 1 and a plurality of integrally formed bottom members 2. The top members each have a plurality of lower notches or cuts 11 which can engage with corresponding upper notches or cuts 21 on the bottom members and thereby enable the top members to easily, quickly, and firmly intersect with the bottom members to provide different patterns. The sections on the top and the bottom members between two notches or cuts may be of different shapes, such as, for example, a convexo-convex body 13, 23 with two concave horizontal surfaces 12, 22. <IMAGE>
Patent GB-2281294-A (GB)
Title: Process for producing half esters of the macrolide FK506
Inventor: KOBAYASHI MASAKAZU
IPC: C07D498/18
Filed: 1993-08-23
Abstract: Half esters of the compound FK506 with dicarboxylic acids are produced bv reacting a mixture comprising FK506 and a dicarboxylic acid or anhydride thereof, such as succinic anhydride, in the presence of a dialkylaminopyridine such as 4-dimethylaminopyridine, in the absence of other bases. The FK506 half esters thus produced are useful as intermediates in the preparation of various conjugates for utilization in diagnostic assays for the compound FK506. The succinate ester has the formula:- <IMAGE>
Patent GB-2283811-A (GB)
Title: Encoder
Inventor: TSENG DENNIS
IPC: G01D5/347
Filed: 1993-11-09
Abstract: The encoder comprises a wheel 1 with a hole in its middle portion. The editing wheel may be made from transparent material, such glass, acrylic etc a plurality of light focusing means 16 being disposed along the circumference. The wheel is mounted on a shaft member (not shown) and can be actuated to rotate via suitable actuating means. A light receiving means (eg a mirror) is provided radially on the wheel body. The light focusing means is interconnected with the light receiving means and capable of focusing light from a source (21) transmitted from the light receiving means into a plurality of light beams. A light source (21) is disposed either at a perpendicular position above or at the centre of the wheel. A sensor means (30) is disposed adjacent to the light focusing means. A pair of light detecting means (31, 32) are provided at the sensor means. The pattern of light illuminating the sensor provides an encoded signal in accordance with the angular position of the wheel. <IMAGE>
Patent GB-2272834-A (GB)
Title: Camera support
Inventor: KLIEWER WALDEMAR
IPC: F16M11/28
Filed: 1993-11-17
Abstract: A support for a camera, has a head piece (2) that exhibits a mounting for the respective device to be mounted and the mounting is swivel-mounted by means of a ball or swivel axis joint; and the head piece (2) is connected to a column (4) to which removable support legs for forming a base element (6) are attached, and whereby to attach the support to objects a clamping or gripping fixture is connected to the column. To this end, the head piece (2) and base element (6) can be separated from the column (4); and head, base and column (2, 6, 4) can be combined with means (25, 17, 29, 35, 33 and 39) to make the support (1) stable and/or to produce a stable attachment of the support (1); and the means (25, 17, 19, 35, 33 and 39) to produce the stability and/or to attach to the environment can be adjusted by combining the individual means. <IMAGE>
Patent GB-2287886-A (GB)
Title: Needle protector
Inventor: SU CHAN-HO
IPC: A61M5/32
Filed: 1994-03-31
Abstract: A needle protector for prevention against stab and virus infection includes a front protector 10, a middle rubber sleeve 20, and a rear protector 30, being added to the conventional syringe, needle 50, and protective cap to avoid needle-stick injuries. The front and the rear protectors receive the needle and the syringe, respectively, and the rubber sleeve connects the front and the rear protectors together while it allows the front protector to be pulled forward to pass beyond the needle and thereby encase the same, the rubber sleeve locking or retaining the front protector in position by its elasticity. The rubber sleeve may be replaced by a pair of rubber rings with consequential modification to the protectors. <IMAGE>
Patent GB-2276932-A (GB)
Title: Surface dressing equipment and method
Inventor: KILNER DAVID NICHOLAS
IPC: F16K41/02
Filed: 1994-04-06
Abstract: A valve unit that can be used in a spray bar for spraying road dressing comprises a housing (1) defining a chamber (2) of fixed volume having an inlet (3) and an outlet (4) for the dressing, an elongate member (6) that can reciprocate in the housing and that has, within the chamber, an outlet closure member (5) biased into sealing engagement with the outlet, e.g. by means of a spring (9). The unit is adapted for opening of the outlet by independent external action on the elongate member against the bias, e.g. by means of a pneumatic system (10, 11, 12). A part 13 allows leaking dressing material to escape from the unit without reaching the pneumatic system. <IMAGE>
Patent GB-2278752-A (GB)
Title: Image recovery over a video telephone system
Inventor: HWANG JAE-SIK
IPC: H04N21/658
Filed: 1994-05-31
Abstract: An image to be transmitted is input to the DPCM 14 to provide pulse code modulated data to the entropy encoder 24 in either intra or inter frame mode dependent on the control signals provided from the data error detector 20. Further coding is carried out in the T-BCH coder 32 and the data is then multiplexed with control data and put on the network. Initially the DPCM operates in an intraframe which is then changed to interframe coding. At the receiver the errors occurring in the received signal are monitored and should this monitoring indicate that the errors have caused image dispersement the receiver transmits back to the transmitter a signal indicating a change in coding mode is required. The transmitter then changes from interframe coding of the transmitted data to intraframe coding of said data. <IMAGE>
Patent GB-2281059-A (GB)
Title: Filling a bag while in a container and removing the bag
Inventor: FREEMAN JOHN
IPC: B65F1/14
Filed: 1994-07-04
Abstract: A re-usable, bottomless liner (2) is placed inside a bag (3) removably located in a container (1), material such as refuse is placed inside the liner (2), the liner (2) and bag (3) containing the material are together removed from the container (1) and the liner (2) is removed from the bag (3). The liner (2) has handholds (5) and its presence allows compaction of material therein by a ram (4) without causing jamming of the bag (3) in the container (1). <IMAGE>
Patent GB-2297626-A (GB)
Title: Miniature mounting grooved substrate
Inventor: BOSTOCK ROGER MARK
IPC: G02B6/38
Filed: 1995-01-27
Abstract: A miniature mounting device on which elements such as optical fibres 100 can be accurately held comprises a substrate 1 having a micromachined groove 2 having an enlarged opening for receiving the element and an overlayer 3 extending at least partially over the groove. The groove may be formed by anisotropic etching. The substrate 1 may be silicon and the overlayer 3 silicon nitride. Pre-stressed lips 3b of e.g. chromium may be formed in a stressed metal layer on the overlayer. The groove and overlayer may be on different substrates.
Patent GB-2295683-A (GB)
Title: Improvements in or relating to electricity meters
Inventor: BOYD GORDON ANDREW
IPC: G01R21/133
Filed: 1995-01-30
Abstract: An electricity meter comprises terminals for electricity supply conductors and consumer electricity feed conductors respectively, a pair of individually sealable covers 10, 11 which afford access to the supply conductor terminals 8 and the feed conductor terminals 9 respectively a switch 37 effective to connect/disconnect the supply to a consumer, and meter means operative to measure the quantity of electricity supplied via the switch to a consumer, which switch is arranged to be accessible consequent upon removal of one of the sealable covers. <IMAGE>
Patent GB-2286827-A (GB)
Title: Method of purifying aqueous solutions of amine oxides
Inventor: MAENNER JOHANN
IPC: D01F13/02
Filed: 1994-08-02
Abstract: Proposed is a method of purifying aqueous solutions of amine oxides, the method being characterized in that the solutions are contacted, through an anion-active membrane, with an aqueous solution of an alkali-metal hydroxide and/or ion-pair reagent. The method proposed enables in particular anions of low-molecular-weight carboxyilc acids, as well as inorganic acids, to be removed efficiently. <IMAGE>
Patent GB-2290745-A (GB)
Title: Coextruded stabilised laminated thermolastics
Inventor: BOTKIN JAMES HAROLD
IPC: B32B27/18
Filed: 1995-06-20
Abstract: Thermoplastic articles, preferably of polycarbonate, are advantageously stabilized by selected o-hydroxyphenyl-s-triazine UV absorbers concentrated in the outer surface or coating layers of the article prepared by coextrusion techniques.