baber/WOPTO huggingface dataset:
Patent GB-1513831-A (GB)
Title: Error handling apparatus
IPC: G06F11/16
Filed: 1975-09-05
Abstract: 1513831 Error correction INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1975 [31 Dec 1974] 36572/75 Heading G4A Data words encoded in an error correcting code are read from a memory 10 and, when found to be in error, are subjected to two different sequences of error correction operations, the resulting "corrected" words being compared for equality before one of them is delivered to an output.  First correction sequence. A word W is read from memory 10 into a register A and a register MDR, syndrome bits and byte parity bits being generated at 11, 20. If any syndrome bit is non-zero, an output E from OR gate 16 signifies the presence of an error, and the syndrome bits, decoded by AND gates 13, are used to attempt correction of the word W from MDR in EXOR gates 14, the "corrected" word W<SP>1</SP> being then entered in register A, MDR and checked for non- zero syndrome bits (E), syndrome parity (G), and correct byte parity (R). RE indicates no error and allows the corrected word to be read out from register MDR to a data processor. Certain other states of R, E indicate an uncorrectable error and result in an error stop. EG initiates a further sub-sequence of correction operations in which the complement of the "corrected" word W<SP>1</SP> is written into the memory 10 and rea9 back to register A for comparison at 18 with the original word W from MDR. The resulting fault indicating word W* has a "1" at each bit position corresponding to a faulty, i.e. "stuck" cell in the memory word location concerned. The word W* is tested for EG and, if this condition is satisfied (other conditions result in an error stop) a further attempt at correction is made by EXOR gates 17 operating on W from MDR and W* from A. Finally the corrected word is re-tested as at the start of the sequence. Second correction sequence. After the initial test of a word W has indicated the presence of an error, the signal G is stored as a signal H and the steps of complementing W, storing in memory, reading back and forming the fault indicating word W* are performed as in the first sequence. If the test on the word W* indicates GEH, the original word W and W* are EXOR'ed at 17, the result is entered in registers A, MDR and an attempt at correction using EXOR gates 14 is made. A final test of the "corrected" word W<SP>1</SP> results in delivery of the word W<SP>1</SP> if ER = 1, or in an error stop. If the test on the fault indicator word W* indicates GEH or GEH, a similar sub-sequence of operations is performed, but at the final test of the "corrected" word W<SP>1</SP>, if ER = 1, the corrected word is compared at 19 with the corrected word resulting from the first correction sequence and stored in a register B, and only if equality is detected is the word delivered to the processor. The second correction sequence is more fault secure than the first.  A detailed diagram of the system is given in Fig. 2 (not shown).
Patent GB-340386-A (GB)
Title: Means for keeping a ship's life-boat, which is suspended from two manilla falls wound on a common drum, on even keel irrespective of the trim of the vessel
IPC: B63B23/18
Filed: 1929-11-29
Abstract: 340,386. Boat-lowering gear. SCHAT, A. P., 66, Hendrik de Keijserstraat, Utrecht, Holland. Nov. 29, 1929, No. 36629. [Class 115.] To enable a boat to be lowered on an even keel, the standing parts of the falls are belayed to cleats 14, 15 on the lower blocks 8, 11 or on other suitable parts such as the davit arm so that adjustments can be made by taking off turns from the cleats. The lowering gear may be of the kind described in Specification 339,381, [Class 78 (v), Winding and paying-out apparatus &c.].
Patent GB-1478386-A (GB)
Title: Rotary position transducer assembly
IPC: B23Q16/02
Filed: 1974-08-21
Abstract: 1478386 Rotary position transducer GIDDINGS & LEWIS Inc 21 Aug 1974 [30 Aug 1973] 36691/74 Heading G1N(A) [Also in Divisions B3 F2 G3 and H1] A rotary position transducer comprises a stator 50 secured to stationary support 48, a rotor 55 and rotor hub 52 and hydrostatic radial bearing 82 and thrust bearings 80, 81, for supporting respectively the cylindrical surface 97 and the annular shoulders 95 and 96 of the rotor hub, the stator and rotor carrying electrical conductors in closely spaced relation. To control the flow of air to the bearings 80, 81, 82 porous carbon liners 94 are attached to the three surfaces 80a, 81a, 82a with adhesive. A drive coupling 59 between rotor 52 and a rotatable member 22 comprises a flexible coupler 64, an extension 65, and a drawbolt 68 which, on tightening, produces a frictional drive connection between the extension 65 and member 22. In Fig. 5 command signals originating in a numerical control unit 73 from a tape read-out 74 are fed to the stator 50 and the resulting output voltage of the rotor is transmitted through a rotary transformer 75, Fig. 4, having primary and secondary windings 75a, 75b respectively, back to the numerical control unit 73 which produces a position error signal. This signal amplified by amplfier 78 controls the servo drive 28 comprising a motor 28a, gear box 28b and pinion 28c engaging the rotatable member. A tachometer 79 provides a velocity feedback loop to control the velocity feed rate of the motor and improve the stiffness of the drive.
Patent GB-1453572-A (GB)
Title: Method and device for measuring azimuth angles
IPC: G01B7/30
Filed: 1975-09-05
Abstract: 1453572 Measuring angles optically INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1975 [12 Oct 1974] 36720/75 Heading G2J Apparatus for providing an indication of the angle between a line 2 (e.g. the edge or gap of a  magnetic head) and a reference direction (e.g. the radius line of a magnetic disc) comprises a lens 3 arranged to direct an image of the line 2 via two mirrors 4, 5 each having one edge on a common axis K normal to the reference direction, to form two focused images 7a, 7b on a plane 6 normal to the reference direction. Mirror 5 is semi-reflective. In a modification, Figs. 3A-D, (not shown) two lenses are used. Fig. 4 shows a system for aligning the gap of a magnetic head 15 to the radius R of a disc 14 in a recording system. The optical system 13 as described above directs a double image of a mark on head 15 on to T.V. camera tube 17 via lens 16.  The two images 7a, 7b are displayed on a monitor 19 whose screen carries an alignment marker 20 and a graticule 21. Both mirrors 4, 5 may be semi-reflective to allow direct observation for rough adjustment.
Patent GB-968848-A (GB)
Title: Plasticizers and plasticized resinous compositions
IPC: C08K5/32
Filed: 1960-10-26
Abstract: The invention comprises aromatic nitro compounds of the formula A(NO2)R1R2R3, in which R1 is a C14-C16 alkyl group, R2 and R3 each represent a methyl group or a hydrogen atom, and A is an aryl group, not further substituted, the radicals R1, R2 and R3 together containing 15-18 carbon atoms.  The compounds are prepared by mononitrating a compound of the formula A(R1)(R2)(R3).  Nitration may be effected with (a) nitric acid, (b) mixtures of nitric acid with oleum, sulphuric acid, acetic anhydride, acetic acid or phosphorus pentoxide, (c) alkali nitrates in the presence of sulphuric acid, (d) organic nitrates, e.g. acetyl or benzoyl nitrate, (e) metal nitrates with acetic acid, (f) nitrosulphonic acid or (g) nitrogen tetroxide. Examples are given of the nitration of pentadecylbenzene and pentadecyltoluene with a mixture of nitric and sulphuric acids. The products are useful as plasticizers in polyvinyl chloride compositions (see Division C3).ALSO:As plasticizers in polyvinyl chloride compositions, use is made of one or more aromatic nitro compounds of the formula A(NO2)R1R2 R3, in which R1 is a C8-C19 alkyl group, R2 is a C1-C13 alkyl group or hydrogen, R3 is a methyl group or hydrogen and A is an aryl group, not further substituted, the total number of carbon atoms in the radicals R1, R2 and R3 being 10-21.  The compositions may contain also other polymerizable materials, a number of which are specified. Specified plasticizers include dodecylnitrotoluene, dodecylnitrobenzene, dodecylnitronaphthalene pentadecylnitrotoluene, pentadecylnitrobenzene, tridecylisopropylnitrobenzene, nonylpropylnitrobenzene and tetradecylnitroxylene. Comparative experimental results are given.
Patent GB-326506-A (GB)
Title: Marine power plant
IPC: B63H5/125
Filed: 1928-12-14
Abstract: 326,506. Payne, T. H., Thorburn, J. W., Norris, W. H. G., Cadel, C. S., and Sewell, V. C. Dec. 14, 1928. No. Patent granted (Sealing fee not paid). Detachable installat i o n s . - Outboard motor installation is driven through rightangled gearing, one component of which is arranged on an axis at right-angles to the centre line of the boat and the vertical shaft is mounted in a casing pivoted at its upper end about this axis for permitting tilting thereof when the propeller boss strikes an obstruction. The engine shaft extends from inboard' through the supporting bracket and carries a driving bevel 15 which engages an intermediate gear 11 on a transverse axis, the upper portion of the casing 6 which carries the propeller is pivotally supported about that transverse axis. When a reverse, gear is incorporated the driving shaft 18 carries free bevels 19, 20, meshing with a bevel 16 on the shaft of which is another bevel 17 which gears with the bevel wheel 13 on the vertical transmission shaft. The sliding dog clutch 21 provides, for forward, reverse and neutral running. In place of bevel gearing helical spur wheels may be used for the drive. When the motor is mounted on the outboard bracket on the transverse axis of swing a plain bevel wheel may be used directly to drive the bevel 13, the engine and fittings swinging as a unit about the pivotal axis. Specification 326,505 is referred to..
Patent GB-1362314-A (GB)
Title: Method for programming a computer to simulate a digital circuit
IPC: G06F11/26
Filed: 1972-08-08
Abstract: 1362314 Data processing; diagnostic programs INTERNATIONAL BUSINESS MACHINES CORP 8 Aug 1972 36916/72 Heading G4A A fault simulation technique used in diagnostic programs for digital computers is disclosed. Fault simulation is used to determine the coverage and resolution of the diagnostic (i.e. the numbers of failures detected and their distinguishing level), to improve the diagnostic program and to prepare the failure documentation for the customer engineer. The described technique simulates only those logic circuits that might be affected by a given set of input changes (significant event simulation). Initially test patterns 12 and the computer circuit description 13 are fed into a non-failing machine simulation cycle 11a to produce an all events trace (AET) 14 which records the circuit activity on receipt of the test patterns without any failures..Then a fault simulation cycle 11b is entered during which a failure (or a group of failures) is simulated for the logic circuit, the initial effects are propagated, a good machine logic value change is read from the AET and the circuit value table is either updated from this, or if the logic is affected by the fault, fresh values are calculated. The fault affected logic is determined by three flags. The fact that only the fault affected area has its values recalculated is stated to reduce simulation time. The simulation is preferably applied to a three valued (0, 1, don't know) unit delay system.
Patent GB-1312795-A (GB)
Title: Production of glass or glass-ceramic oxidic multi-component substances
IPC: C03C17/02
Filed: 1970-07-30
Abstract: 1312795 Glass and glass-ceramics CARLZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 30 July 1970 [13 Aug 1969] 36945/70 Heading C1M A process for the production of a glass, or glass ceramic, in which a component (P) comprising at least one alkali or alkaline earth metal compound dissolved in an organic solvent is reacted with a component (Q) comprising at least one compound of an element chosen from Groups I, II, III, IV, V, VI, VIIA and/or VIII of the Mendeleeff Periodic Table which is/are dissolved in an organic solvent to obtain a homogeneous solution containing the reaction product, after which the solvent is evaporated off in the presence of moisture and the residue is heated to a temperature below the melting- point or melting range. The alkali or alkaline earth metal compound is preferably an alkoxide. The component Q may be a compound of an element chosen from Ti, Na, K, Mg, Ca, Ba, Zn, B, Zl, Ti, Zr, Si, Pb and P and may be an alkoxide, ester or chloride. Phosphorus and/or arsenic pentoxide may be added to components P and Q. A chelate former may also be added to inhibit precipitation from solution. A glass layer may be applied to a metal or glass substrate having a melting-point above that of the glass by immersing the substrate in the solution, withdrawing the coated substrate and evaporating off the solvent, heating the substrate to produce the glass layer and thereafter further heating the substrate to fuse the glass layer on to the substrate. A number of glass and glassceramic compositions are disclosed.
Patent GB-1018499-A (GB)
Title: Improvements relating to alternating current multi-break switching arrangements
IPC: H01F29/04
Filed: 1962-09-28
Abstract: 1,018,499. Arc-rupturing in switches. SIEMENS-SCHUCKERTWERK A.G. Sept. 28, 1962 [Sept. 28, 1961], No. 36976/62. Heading H2B. [Also in Division H1] In a bridging contact arrangement, which may be used in a transformer load-changing switch, a rectifier (or a bank of rectifiers) is connected between only one of the fixed contacts and the contact bridge.
Patent GB-1220752-A (GB)
Title: Edge connector for printed circuit panels
Inventor: BOWLEY THOMAS WILLIAM
IPC: H01R13/506
Filed: 1968-08-02
Abstract: 1,220,752. Edge connectors. CARR FASTENER CO. Ltd. 20 May, 1969 [2 Aug., 1968], No. 36991/68. Heading H2E. An edge connector for printed circuit boards comprises a body 1 of insulating plastics, e.g. glass filled diallyl-phthalate, with a longitudinal slot 2 and recesses 3 to house contact elements and end pieces (Fig. 5) of resilient material, e.g. nylon, detachably secured to the ends of the connector body and adapted to be mounted on a support. Each end piece has a base 6 and an arm 7 which carries a plate-like resilient portion 9 attached thereto by means of a web portion 10, and a lip formation 11 which snaps into position on a bottom edge of the connector body when the resilient portion 9 is slid fully into an end pair of recesses 3.
Patent GB-1473055-A (GB)
Title: Process for the production of polycondensate containing cyclic imide groups
IPC: C08G18/38
Filed: 1975-09-09
Abstract: 1473055 Coating with polyamides BAYER AG 9 Sept 1975 [12 Sept 1974 (2)] 37041/75 Heading B2E [Also in Divisions B5 and C3] A process for preparing polycondensates with cyclic imide linkages, comprises polycondensing a polyiso-cyanate or thiocyanate, which may be masked, with a carboxy reactant having a cyclic diCOOH anhydride group and at least one further anhydride, carboxyl, carboxylic alkyl or aryl ester, or SO 3 H group at from 0 to 450C in its presence of formic acid. The formic acid may be in an amount of 0.1 to 40 mol % related to the isocyanate. Reaction may be effected in a solvent. Numerous reactants, catalysts and solvents are specified. The products may be modified by incorporating polyols, polycarboxylic acids, polycarbamic acid esters, polyesters or polyethers. The products are useful as lacquers for coating metals, e.g. aluminium or steel plates, or wires, and for forming films and laminates. The solution obtained in the reaction may be diluted eg. with xylene to form lacquers. In specific Examples the reactants used are 4, 4'- diisocyanato-diphenyl-methane, -propene or -ether, phenylene-1, 3-diisocyanate, tolylene-2, 4-diisocyanate and trimellitic anhydride. Coatings. Most Examples describe lacquering wires. In Ex. 3, 2 coats of the lacquer is applied to a wire already lacquered with polyurethane and in Ex. 4 a 0.7 mm wire is lacquered with 4 coats of a lacquer containing 100 p.b.w. polyvinyl formal, 60 p.b.w. mashed polyisocyanate, 5 p.b.w. melamine formaldehyde resin and 5 p.b.w. phenol formaldehyde resin in cresol/xylene, and then with 2 coats of the lacquer of the invention. Laminates. In Ex. 5 a woven glass fibre fabric is impregnated with a solution of the polycondensate and air dried and several layers of the impregnated fabric are laminated to a thickness of 3 mm. Reference is made to Specification 1009956.
Patent GB-1382786-A (GB)
Title: Block moulding process
IPC: B30B15/30
Filed: 1973-08-03
Abstract: 1382786 Compression moulding apparatus VON ROLL AG 3 Aug 1973 [3 Aug 1972] 37084/73 Heading B5A A press for moulding blocks from granular material includes a mould 2 with compression members 3, 4, means for moving the mould and member 4 vertically, a container 16 laterally movable by a drive 17 between a loading position, Fig. 3, for receiving granular material from a dosage device 18 and an unloading position, Fig. 2, above the mould, and a drive 27 operated in synchronism with the drive 17 and the movements of the mould for opening a wall 25 of the container. The latter is open top and bottom and slidably supported on the surface of a bracket 15 flush with the mould top. After receiving granular material from a dosage container 21, Fig. 1, via the interposition of a vertically adjustable sleeve 24 the mould is lowered to the position of Fig. 1, and the container 16 is moved laterally whereby bumpers 33 on the wall 25 push a previously pressed block on to a conveyer 35; during this movement nozzles 38 spray oil on to the faces of compression plates 12, 36. The mould is raised by means 14 and oil sprayed on to its walls from nozzles 40; during the raising of the mould it is charged with granular material and the member 4 is enclosed by the container. The charge is compressed by a rapid motion piston-cylinder drive 8, 9 followed by a main piston-cylinder drive 5, 6. The wall 25, comprising pivoted flaps, is now opened to allow lateral container movement to its loading position. During the compression stroke the mould moves downward slightly and after compression the mould is lowered to strip the moulded block therefrom which rests on the member 3.
Patent GB-1392814-A (GB)
Title: Drum system
IPC: G11B5/004
Filed: 1971-08-06
Abstract: 1392814 Mounting magnetic heads RCA CORPORATION 3 Aug 1972 [6 Aug 1971] 37099/71 Heading G5R A plurality of head assemblies 26-1 to 26-22 are rotatably mounted with respect to a magnetic drum 24 on a shaft 28a passing through apertures at one end of the assemblies 26 and extending parallel to the drum axis, the shaft 28a having a plurality of alignment pins 106 extending into slots formed in the assemblies 26, and the other end of the assemblies 26 being biased to pivot heads 108 into engagement with the drum 24. The assemblies 26 are biased by cartridges 120 which contain spring-loaded pins (142), Fig. 5 (not shown), engaging assembly ends (144), Fig. 4 (not shown). The ends (144) are disposed in slots in a bar 112a. As shown, two other similar shafts 28b, 28c carry similar head assemblies (26-23) to 26-43; (26-44) to 26-64, Fig. 6 (not shown). The head assemblies 26 may be raised from the drum 24 by rotating the shafts 28 so that pins 106 engage one wall of the slots (104). The three shafts 28a-28c are rotated together by means of a cable 52, Fig. 2, which passes over pulleys 50-1 to 50-3 attached to the shafts 28a-28c. The cable 52 is resiliently secured to each pulley by springs 58a-58c so that as the cable 52 is pulled by a lever 54 the pulleys are rotated against spring bias 56a-56c. The shafts 18 have two flats 70 and the shaft apertures have openings 72 to enable the assemblies 26 to be removed from the shafts. The drum 24, which comprises a mgnetic elastomer 82 on a solid metal cylinder 83, is lubricated by a felt wick 42 immersed in a tray 40 of lubricant. Side plates 30, 32 of the apparatus are each constructed in two hingedlyconnected parts to permit the drum 24 to be removed, Fig. 6 (not shown).
Patent GB-433744-A (GB)
Title: Improvements in means for marking roadways
IPC: E01F9/06
Filed: 1934-12-29
Abstract: 433,744. Blocks for marking road surfaces. HAYNES, H. J., Gamble Road, Kingston Crescent, Portsmouth. Dec. 29, 1934, No. 37237. Addition to 355,894 and 408,476. [Class 87 (i)] The rubber blocks described in the parent Specification or as modified by Specification 408,476, are further modified by keying holes or studs formed in or on their side faces.
Patent GB-1159341-A (GB)
Title: Manufacture of Synthetic Fabrics and Leather Substitutes
IPC: D06N3/00
Filed: 1966-08-19
Abstract: 1,159,341. Coated laminate. GENSET CORP. 19 Aug., 1966 [14 Sept., 1965], No. 37264/66. Heading B2E. [Also in Division B5] A composite sheet comprises a flexible, compressed, cellular polyurethane sheet of open or closed cell structure, a fibrous mat e.g. of natural or synthetic fibres being adjacent to one or each surface of the polyure. thane sheet and a plurality of the fibres of the fibrous mat or mats penetrating said polyurethane sheet. When the composite sheet contains only one fibrous mat, the opposed surface of the polyurethane sheet may be coated with a flexible polymer e.g. a polyurethane, a polyacrylate, a polyester, a polyamide or an epoxy resin. The mats may be woven or non- woven, may be unbonded or the fibres may be bonded by adhesive, by thermoplastic fibres, solvent or salt, specified fibres being rayon, silk, wool, nylon, polyethylene terephthalate, polydimethyl cyclohexyl terephthalate, polyacrylonitrile, polyvinyl chloride and polyvinyl alcohol. A preferred method of forming the composite sheets comprises forming a cellular polyurethane sheet, placing a fibrous mat adjacent to one or each surface thereof, physically forming a plurality of the fibres of the mat(s) into the polyurethane e.g. by needling and compressing the resultant composite at a temperature and pressure sufficient to produce a permanently compressed sheet. The coating may be applied to the polyurethane prior to needling or after compression. Needling is preferably effected so that at least some ot the fibres pass through the thickness of the polyurethane sheet and project therefrom. The polyurethane sheet may be composed of two separate layers, the fibrous mat being needled to one layer thereof and the resultant composite needled to the other layer. The com posite sheets may be provided with finish coat. ings on one or both surfaces or laminated together.
Patent GB-542434-A (GB)
Title: Improvements in or relating to the polymerisation of butadienes-1.3.
IPC: C08F36/04
Filed: 1938-12-23
Abstract: 542,434. Synthetic rubber. CARPMAEL, A. (I. G. Farbenindustrie Akt.-Ges.). Dec. 23, 1938, No. 37529. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 26, 1939.] [Class 2 (iii)] The polymerization of butadienes 1-3 (including chlorbutadiene) in aqueous emulsion is effected in the presence of an emulsifying agent and of a complex water-soluble organic compound of heavy metals which have more than one stage of oxidation, such as compounds of iron, cobalt, nickel, copper and tin, for instance, haemin, iron phthalocyanines, alkali salts of iron complexes with arabonic acid, pyrogallol and gallic acid. In the case of copper compounds it is preferred to add also an agent capable of converting any ionic copper into a complex form such as ethylene bisamino diacetic acid C 2 H 4  (CH(NH 2 )COOH) 2  or nitrilo triacetic acid, N(CH  2 COOH) 3 . The butadiene compound may be polymerized together with other polymerizable compounds such as styrene, acrylic nitrile and fumaric acid ester. In examples there are polymerized in aqueous sodium oleate emulsion (1) and (4) 25 parts of acrylic nitrile and 75 parts of butadiene in the presence of ferric arabonate, ferric pyrogallate and iron phthalocyanine sulphonic acid respectively ; (2) styrene and butadiene with haemin; (3) 2-chlorbutadiene with tetramethyl thiuram disulphide and sulphur and ferric arabonate ; and, in aqueous emulsion with sodium isobutyl naphthalene sulphonate ; (5) acrylic nitrile, butadiene and iron phthalocyanine sulphonic acid. Specification 156,119, [Class 2 (iii)], is referred to.