baber/WOPTO huggingface dataset:
Patent GB-2216755-A (GB)
Title: A Syndrome Sequential Decoder
Inventor: OHASHI MASAYOSHI
IPC: H03M13/39
Filed: 1989-03-13
Abstract: A decoding system for error correction of a convolutional code has a syndrome former (2) for providing a syndrome sequence from a received sequence, a syndrome buffer (5) for storing said syndrome sequence (2), an estimated error buffer (4) for storing an estimated error sequence, a syndrome register (10) for representing a syndrome state under searching (5), a comparator (11) for testing if content of said syndrome register (10) is all zero, an algorithm controller (12) for controlling said syndrome register (10), calculating a path metric and raising a flag in said estimated error buffer memory (14) for showing an estimated error bit position, an exclusive-OR circuit (6) for correcting an information bit error according to output of said estimated error buffer memory (4). When content of said syndrome register (10) is all zero, it shows that a currently searching path merges with the maximum likelyhood path, a decoded sequency up to this point is explicitly determined and no further search is required if the following syndromes remain zero. A back search limit pointer (8) is provided on the estimated error buffer (4) and a syndrome buffer (5) to show the limit of the depth of back search. …<IMAGE>…
Patent GB-2232616-A (GB)
Title: Sieve screen deck and separation method
Inventor: LEES JEREMY JAMES
IPC: B01D33/03
Filed: 1989-06-07
Abstract: A sieve screen deck (10) comprises a stationary support frame (12), an elongate sieve screen (11) resiliently mounted on the frame, and connected to the frame only at two opposite ends of the sieve screen, and rapping or vibrating means (13) adapted to apply a rapping or vibrating force to the sieve screen. The rapping or vibrating means comprise a motor (35) mounted on the support frame above the sieve screen driving a suitably profiled cam (36). A cam follower bears against the cam, an elongate torque transfer member (43) is connected at one end to the cam follower and at the other end to a rapping bar pivotally mounted beneath the sieve screen such that the rotation of the cam causes the application of the rapping or vibrating force to the sieve screen by the rapping bar. The sieve screen deck may, alternatively, have, on the underside of the sieve screen intermediate its ends, a strip of resilient material extending substantially normally to the longitudinal axis of the sieve screen. The resilient strip is adapted to receive a rapping or vibrating force applied to the sieve screen and is adhered to the sieve screen by a gap filling adhesive such that the surface of the strip distal the sieve screen is substantially planar. <IMAGE>
Patent GB-2233150-A (GB)
Title: Infra-red radiation source
Inventor: BLUNDY R W
IPC: H05B3/00
Filed: 1989-06-16
Abstract: There is provided an infra-red radiation source which comprises a tube of infra-red radiation transparent material containing an electrical conductor formed of carbon fibres, which is connected across an electrical power supply. The tube is sealed and may either be evacuated or filled with a gas such as argon at sub-atmospheric pressure. This provides a radiation source with a fast response time, operable at temperatures up to 1200 DEG C for example.
Patent GB-2236099-A (GB)
Title: Containers
Inventor: COLLINS MALCOLM GEORGE
IPC: B29C37/00
Filed: 1989-09-07
Abstract: A thermoformed container lid 26 for fixing to a container body 27 has a peripheral skirt portion 28 of axial length substantially equal to that of a container skirt 29 to permit fusion of the free edges of the skirt together to prevent illicit removal of the lid, and the lid skirt has a removable band 22 therearound formed by localised incision(s) or material thinning. Apparatus (Figs. 11, 13) for applying the lid to a container includes means to press the lid onto the body to bring the free edges of the lid and body skirts into the same plane, and means to apply heat and pressure to the free edges to fuse them together. <IMAGE>
Patent GB-2236034-A (GB)
Title: Testing control circuits of telephone exchanges
Inventor: HANLEY AUSTIN
IPC: H04M3/24
Filed: 1989-09-14
Abstract: Apparatus 1 tests control circuits of telephone exchange switching network control circuits 2 having subcircuits 2a-c, each effecting a specific function. Interface 3 notes which subcircuit is to be tested and receives syntex rules which determine allowed parameters for subcircuit command signals. Command signal generator 5 transmits command signals to subcircuits 2 via transmission unit 6. Comparator 8 compares output signals with reference values and the results are recorded in unit 9. <IMAGE>
Patent GB-2226791-A (GB)
Title: Laminated panel
Inventor: MAGUIRE DESMOND JOSEPH
IPC: B32B27/06
Filed: 1989-11-13
Abstract: A laminated panel comprises a non-combustible base panel 6 to which is bonded a decorative layer assembly which includes a plastics outer layer 2 and a metallised film 3 between the plastics outer layer and the base panel. In a preferred embodiment, the decorative layer assembly also includes a PVC sheet material 1 to one face of which the metallised film is bonded, the other face of which is bonded to the non-combustible base panel 6. <IMAGE>
Patent GB-2235023-A (GB)
Title: Shaft seal
Inventor: NICHOLSON TERENCE PETER
IPC: F16J15/48
Filed: 1989-12-04
Abstract: A valve stem seal has a fixing region 7 with a flange 9 for mounting in a valve housing, and a flexible seal region 19, with an external groove 17 between these regions to permit the region 19 to flex relative to the fixing region 7. The fixing region 7 has a small radial clearance from the valve stem and acts as a bearing for the latter. The region 19 is an interference fit on the valve stem and has internal labyrinth seal grooves 21. The seal may be made of metal or of plastics material such as PIFE. If made of metal, the region 19 preferably has external grooves 23 in a diamond pattern to provide increased flexibility. The region 19 is externally exposed to the pressure of the fluid in the valve housing so that the seal is self-energizing. <IMAGE>
Patent GB-2239641-A (GB)
Title: Multi-purpose underwater propelling device
Inventor: CHIH LIU PIN
IPC: B63H5/16
Filed: 1990-01-03
Abstract: A multi-purpose underwater propelling device comprises a front cover 1, a main body 2, a guiding ring 3 and a propelling cylinder 4. The front cover 1 is provided with connections 11-14 for an external electric power source and an electric motor control etc. The interior of the main body has radial fins 23 to support a battery 24 and the aft portion of the body is connected to the guiding ring via stop-shaped interconnecting surfaces 25, 31 for a water-proof connection. The guiding ring 3 houses an electric motor 32 to drive a propeller 33. The propeller is located inside the propelling cylinder 4 with only a small clearance. The propelling device may be used to low a diver or maybe attached to the underside of an inflatable rubber raft (Fig 4-1, not shown), wherein a removable steering linkage (53) is utilised to control a rudder (44).
Patent GB-2229338-A (GB)
Title: A process for preparing a substantially carbonaceous diaphragm for use in acoustic equipment
Inventor: SUDA YOSHIHISA
IPC: C04B35/52
Filed: 1990-01-18
Abstract: A process for preparing a substantially wholly carbonaceous diaphragm for use in acoustic equipment, comprises blending graphite powder with a carbonizing binder comprising a chlorine-containing resin and a monomer or a primary condensate of a thermosetting resin containing a triazine ring for promoting cross linking by reacting with said chlorine-containing resin component when heated; adding thereto a solvent or a plasticizer capable of dissolving these resin components; kneading the resulting mixture so that the crystals of graphite are cleft by the mechanochemical reaction and the binder resin is allowed to disperse; making the resulting composition into a sheet having the shape of a diaphragm and in which the crystals of the graphite are oriented substantially parallel to the sheet surface; heating the diaphragm so as to remove the solvent or plasticizer contained therein and at the same time to produce a cured body resistant to thermal deformation as a result of a cross linking reaction and curing reaction of the chlorine-containing resin by the triazine; and baking said cured body in inert atmosphere.
Patent GB-2236131-A (GB)
Title: Road sign suitable for mounting at a bend
Inventor: BROWNE PAUL
IPC: E01F9/669
Filed: 1990-09-14
Abstract: A sign (1) suitable for mounting at a road bend has a number of panels (2), each carrying indicia such as a chevron (6), arranged in a zig-zag formation on a support. Two sets of spaced-apart panels (2) are thus formed, each set of panels facing front-on to one approach to the bend and end-on to the other approach to the bend. Chevrons (6) on alternate panels (2) which all face in the same direction, form an associated set of chevrons (6) all pointing in one direction.   <IMAGE>
Patent GB-2242111-A (GB)
Title: Making a filler of smokable material
Inventor: HEITMANN UWE
IPC: A24C5/34
Filed: 1991-03-21
Abstract: In a cigarette rod making machine the surplus 82 of smokable material which is removed by the trimming device is returned into the magazine 9 of the distributor beside the supply 4 of fresh tobacco. Fresh tobacco is withdrawn from the supply 8 in the form of a relatively wide first layer, and the recycled surplus is returned in the form of a narrower second layer at the side of one marginal portion of the first layer. The two layers are converted into a stream which is advanced toward and past the trimming device in such a way that the latter removes mainly recirculated surplus tobacco which is again admitted into the magazine for conversion into the second layer. <IMAGE>
Patent GB-2245623-A (GB)
Title: Directional drilling tool
Inventor: BASE JAMES D
IPC: E21B7/08
Filed: 1991-04-02
Abstract: A directional drilling tool includes the combination of a lateral thrusting stabiliser and a bent sub. The tool is operated by     (a) driving a mandrel 11 assembly down against a return spring 12; (b) causing pads 12A to move laterally in the direction of arrows B, C; and (c) causing the top end of a lever 16 to pivot about axis 17 in a direction generally opposite to the direction of a movement of the pads; the mandrel, pads, the lever and that portion of the drillstring moved by the lever, all being appropriately linked.   <IMAGE>
Patent GB-2245948-A (GB)
Title: Replacement wall ties
Inventor: LE COURT NOEL
IPC: E04G23/02
Filed: 1991-07-12
Abstract: The inner end of a replacement wall tie comprises an expansible sleeve 7 (Fig. 1) or 30 (Fig. 4) expanded against an abutment 5 by means of a nut 9 which is prevented from rotating by a lug 10 crimped out of its side so as to engage the wall of a hole. In Fig. 1, a coned member 8 expands the sleeve 7; in Fig. 4, the rubber-sleeve is expanded purely by compression, and the lug 10 also prevents rotation of the sleeve 30. The inner end sleeve is expanded by rotating the rod 1 by means of a tool screwed onto the rod end 4, then the outer end sleeve is expanded by rotating the nut 14 by a different tool. <IMAGE>
Patent GB-2246573-A (GB)
Title: Purified polylactides
Inventor: PRIKOSZOVICH WALTER
IPC: C08G63/90
Filed: 1991-07-30
Abstract: A polylactide in a purified state, which meets the requirements of  - the colour strengths of reference solutions B2 - B9 of the brown colour test of the European Pharmacopoeia, 2nd       Edition (1980) part I, Section V, 6.2 and - containing one or more metals in cationic form, the metal ion(s) having a concentration of at most 10 ppm.   The polylactide is especially suitable for use as microparticles or implants, and contains preferably a hydrophilic drug, like octreotide or a lipophilic drug like bromocriptine. The metal ion is preferably Sn<++>, derived from the catalyst used to prepare the polylactide, e.g. the tin (II) salt of 2-ethyl-hexanoic acid. The purified polylactides may be prepared by contacting a solution of the impure polylactide with a matrix having on its surface carboxylic groups, e.g. active charcoal, and isolating the purified polymer from the eluate. The isolation step may further include ultrafiltration. The polylactide preferably contains glycolide units and preferably has a mean molecular weight of 10,000 to 200,000 and a polydispersity of 1.2 to 3.0.
Patent GB-2247498-A (GB)
Title: Plastic gear casing with precision metal inserts.
Inventor: BITSCH HARALD
IPC: F16H57/032
Filed: 1991-08-08
Abstract: A transmission box with several bearings for shafts is disclosed. The transmission case (1) is produced by a plastic injection molded cast and comprises at least in part outer races (14) for the bearings (13), which are retained at a defined axial distance by a metallic precision insertion part (8) embedded into the plastic injection mold case (1).
Patent GB-2255883-A (GB)
Title: Delay compensation circuit for transmission line
Inventor: KANG KYOUNG-WOO
IPC: H04L25/12
Filed: 1991-08-29
Abstract: In order to compensate the signal delay between a signal driver 10 and receiver 20 in the transmission of a digital signal through a transmission line L, a circuit comprises an inverter 30 connected in parallel with the transmission line L for inverting the data transmitted through the transmission line, and pull-down means 40, 50 connected in parallel with the inverter 30 and transmission line L for compensating the pull-down time of the transmitted data according to the output of the inverter 30. The circuit may also include a pull-up means 60, 70 and/or a delay means 80, 90 for controlling timing of the pull-up means, 60, 70 and/or pull-down means 40, 50. On sensing of e.g. a falling edge, transistors 40, 50 are turned on so that the negative power source Vss is connected with point "A". dropping its voltage rapidly to Vss, (i.e within a time shorter than the fall time of the signal). <IMAGE>
Patent GB-2259163-A (GB)
Title: Transaction processing
Inventor: JACKSON ANTHONY
IPC: G06Q10/00
Filed: 1991-08-30
Abstract: A host processor (2) generates a transfer file after comparing transaction requests from a request data file with stock data retrieved from a disk memory and sets a flag which is detected by a communications controller (8). This allows immediate transmission of the transfer file to a remote network (14) for updating of records. The communications controller (8) receives data from the network (14) after transmission of the transfer file to utilise the communication link which has been established. For processing of local enquiries, an enquiry controller (5) retrieves data from transaction records and inserts this into documents which may be generated. The apparatus described is for the processing of transactions relating to distribution of goods to retailers and the processing of mail order requests. <IMAGE>
Patent GB-2251479-A (GB)
Title: Mixing valve handle
Inventor: NICKLAS JAMES R
IPC: F16K11/074
Filed: 1991-12-23
Abstract: Rotatable handle assembly, typically for temperature control in a volume and temperature controlled mixing valve, comprises a handle or knob 38 and an orienting insert 250 drive connecting the knob with a control stem 160, the insert having an aperture (258 Fig. 7) shaped to fit onto the stem at only one rotated orientation, and the insert being receivable in the knob in either of two angular positions so that it can be indexed by 180 degrees. The insert has a frangible protrusion 256 mating with a hole in the knob to determine a first or normal said position, but if the valve is to be connected with hot and cold flows reversed the knob assembly is adapted by removing the protrusion and turning the insert to mount the knob at the second angular position. <IMAGE>
Patent GB-2251931-A (GB)
Title: Air separation
Inventor: RATHBONE THOMAS
IPC: F25J3/04
Filed: 1992-01-14
Abstract: Air is compressed in a compressor 2 and has water vapour and carbon dioxide removed therefrom in an apparatus 4. A portion of the resulting purified air is then cooled by passage through a main heat exchanger 6 to a temperature suitable for its separation by rectification. The air is then introduced into the higher pressure stage 12 of a double rectification column 10 (which also has a lower pressure stage 14). Liquid oxygen is withdrawn from the lower pressure stage 14 by a pump 36 and is vaporised by passage through the heat exchanger 6 countercurrently to the aforementioned air to form a high pressure gaseous oxygen product. A second portion of the purified air is further compressed in compressors 38 and 40 and is then passed through the heat exchanger 6 countercurrently to the oxygen product, thereby helping to warm such product. A part of the first portion of air is withdrawn from an intermediate region of the heat exchanger 6, is expanded in a turbine 50 and is introduced into the lower pressure rectification stage 14. A part of the second portion of the air is taken from intermediate the compressors 38 and 40 and is passed through the heat exchanger 6, being withdrawn therefrom at an intermediate location thereof. This air stream is then expanded in an expansion turbine 48 and is passed into the higher pressure rectification stage 12 of the column 10. <IMAGE>
Patent GB-2280167-A (GB)
Title: Method and apparatus for the manufacture of an expanded polystyrene product, particularly a pallet.
Inventor: LIM BENG TECK
IPC: B65D19/40
Filed: 1993-07-23
Abstract: A lightweight but strong pallet is manufactured from expanded polystyrene beads using an apparatus which comprises a mould having a mould space defining the shape of the product and two mould surfaces provided with vents through which the mould space communicates with respective processing chambers. Expanded polystyrene beads contained in the mould space are fused together by creating a turbulent flow of steam within each of the processing chambers in turn and passing the steam from the turbulent flow through the mould, thereby effecting complete and even fusing of the beads throughout the product. In the case of a pallet embodying the invention, the bending strength of the pallet is further improved by providing a lower surface of the pallet with a criss-cross pattern of ribs (7a - 7d, Fig 3) interconnecting legs projecting downwardly from the lower surface. The properties of the pallet may be further enhanced by fitting a resilient band 10 around the periphery of the pallet and attaching protective, low friction end caps 11 and cross bars 20 to the legs 5. <IMAGE>
Patent GB-2270316-A (GB)
Title: Horseradish peroxidase-intrinsic factor conjugates
Inventor: BOENISCH MICHAEL T
IPC: C12N9/02
Filed: 1993-08-20
Abstract: This invention preferably presents a non-isotopic competitive assay for Vitamin B12 (B12), utilizing intrinsic factor (IF) labelled with horse radish peroxidase (HRP). HRP and IF are by coupled via heterobifunctional cross-linking agents, Succinimidyl-4-(p-maleimidophenyl)butyrate (SMPB) and N-Succinylimidyl-5-acetylthioacetate. In addition, a method for stabilizing the resultant conjugates by pretreatment with N-ethylmaleimide is disclosed.
Patent GB-2280516-A (GB)
Title: A method of and apparatus for controlling consolidation of a resinous prepreg laminate assembly to produce a composite material article
Inventor: JONES WILLIAM RAYMOND
IPC: B29C35/02
Filed: 1994-05-26
Abstract: An apparatus (10) for controlling the consolidation of a resinous prepreg laminate assembly (22) comprises a temperature sensor (30) located at a predetermined position in the prepreg (22) and a control computer (34) which receives temperature signals from the sensor (30). The computer (34) sends signals to adjust the temperature applied to the prepreg (22) by a heater (18). The computer (34) measures the system response time. The computer (34) has mathematical models of the behaviour of critical process variables as a function of time etc and control rules. The computer (34) uses the critical process variables and measurements of temperature to determine the current state of the prepreg every 6 seconds. Every minute the computer (34) uses the current state of the prepreg and the control rules to predict the future state of the prepreg in a time equal to the system response time, which is 5 to 10 minutes, for different applied rates of increase of temperature and selects the highest rate of increase of temperature which does not violate the rules and sends signals to the heater (18) to apply that rate of increase of temperature for the next time period equal to 1 minute. <IMAGE>
Patent GB-2281122-A (GB)
Title: Complementary binding of receptor and ligand or test compound involving capillary action
Inventor: GARMAN ANDREW JOHN
IPC: G01N33/558
Filed: 1994-08-17
Abstract: A method for the detection of a compound which modulates binding of a ligand to a biological receptor, which method comprises contacting the ligand, biological receptor and test compound at a locus on a solid phase matrix, the matrix allowing movement of fluids therein by capillary action, under conditions which permit binding of the ligand to the biological receptor and partition of any unbound ligand on the solid phase matrix, and detecting any modulation of binding by the test compound by reference to any such partition. A method for the detection of a compound which binds to a biological receptor, which method comprises contacting the biological receptor with a test compound at a locus on a solid phase matrix, the matrix allowing movement of fluids therein by capillary action, under conditions which permit binding of the test compound to the biological receptor and partition of any unbound tent compound on the solid phase matrix, and detecting binding of the test compound to the biological receptor by reference to any such partition. The biological receptor may be bound to the matrix, whilst the partition is preferably linear. <IMAGE>
Patent GB-2292337-A (GB)
Title: Making fire-resisting slabs
Inventor: YU TE-FANG
IPC: D06N3/00
Filed: 1994-08-18
Abstract: Fire resisting slabs, for use in construction or upholstery, are made by dipping two pieces of fabric in a coating material, which is prepared by firstly mixing powdered clay with urea, water and a stabilizing agent and secondly mixing the resultant mixture with an emulsion, sodium chloride and a pigment, bonding the coated fabrics together into a green slab by an intermediate bonding material, which is prepared by firstly mixing powdered clay with urea and water and secondly mixing the resultant mixture with a stabilizing agent and sodium chloride, squeezing and then drying the bonded fabrics thereby permitting the intermediate bonding material to form into a foamed structure and finally surface treating and trimming the product into a finished fire-resisting slab. <IMAGE>
Patent GB-2282107-A (GB)
Title: Cylinder for transporting printed sheets
Inventor: LOTSCH KURT
IPC: B41F21/00
Filed: 1994-09-23
Abstract: The transport cylinder (2) is of hollow construction, cooperates with a printing cylinder (1) of an offset machine, and grips the leading edge of a freshly sheet to be verso printed. To prevent contact of the fresh ink with the cylinder surface, compressed-air escape apertures (3) are provided on the circumference of the cylinder in the region where the sheet is contacted. A segment (7), which can be adjusted for sheets of different lengths, rotates with the cylinder, while a fixed shield assembly (4) prevents air from escaping from the apertures as they pass the entry region of the cylinder. <IMAGE>