baber/WOPTO huggingface dataset:
Patent GB-1531140-A (GB)
Title: Peripheral controller with command retry
IPC: G06F3/06
Filed: 1975-12-23
Abstract: 1531140 Error correction HONEYWELL INFORMATION SYSTEMS Inc 23 Dec 1975 [24 Dec 1974] 52582/75 Heading G4A A peripheral controller detects errors in a data block being written on or read from a magnetic tape and stores indications of such errors, a retry operation only being carried out if the detected errors are within a selected group of errors which can produce a successful retry. Thus if a data block being written is late, long or short of if there is noise other than in the initial portion of the block a retry operation will be carried out whereas if no block or multiple blocks are detected or if there is noise in the initial portion of the block no retry operation will be carried out. Similarly retry of a read operation will not take place for a split block or if there is noise in the initial portion of the block. A counter limits the number of retry operations for each data block.  Each retry operation is started by carrying out a backspace operation during which the data block is read from the tape and detected for errors, as before, to determine whether the retry should continue. Data blocks being written on the tape are read by a read head and supplied to the peripheral controller for the error detection, retry of a write operation causing the data block to be written at a different position on the tape. The peripheral controller controls a plurality of tape drives, operates in response to microinstructions read from a programmable readonly memory (104-1, Fig. 1, not shown), and includes a data recovery unit (105) containing deskewing registers, clock circuits responsive to NRZ or phase encoded signals, and registers which indicate when signals are being received on the various channels.
Patent GB-1094950-A (GB)
Title: Connecting rods
IPC: F16C7/02
Filed: 1966-11-25
Abstract: 1,094,950. Connecting rods. GENERAL MOTORS CORPORATION. Nov. 25, 1966 [Dec. 1, 1965], No. 52861/66. Heading F2T. A connecting rod 26 comprises a pair of struts 42 which extend between the outer peripheries of the small and big end bosses 38 and 40 and are interconnected adjacent the big end boss 40 by a pair of diagonally intersecting ribs 46. The spaces between the struts and the ribs are closed by thin webs 48. The body portion 30 of the rod is of aluminium or other light metal and the big end cap 28 is preferably of forged steel or cast iron.
Patent GB-1414436-A (GB)
Title: Aqueous thermosetting acrylic enamel
IPC: C08L61/32
Filed: 1973-11-15
Abstract: 1414436 Thermosetting acrylic enamels E I DU PONT DE NEMOURS & CO 15 Nov 1973 [16 Nov 1972] 53071/73 Headings C3P and C3R Aqueous thermosetting acrylic enamel coating compositions comprise 10-60% by weight of film-forming constituents and corresponding by 90-40% by weight of water and up to 20% by weight of a solvent for the film-forming constituents, which constitutents comprise (1) 60-90% (based on the weight of such constituents) of an acrylic polymer having a uniformity factor (as defined in the Specification) of at least 75% and containing units of (a) 20-60% by weight of either methyl methacrylate or a mixture thereof with styrene, the styrene forming up to 40% by weight of the acrylic polymer, (b) 20-40% by weight of a (C 2 -C 12  alkyl) acrylate and/or a (C 4  to C 12  alkyl) methacrylate, (c) 4-20% by weight of a (C 2  to C 4  hydroxyalkyl) acrylate and/or methacrylate, and (d) 4-20% by weight of an α, #-ethylenically unsaturated carboxylic acid, wherein the polymer has a carboxyl group to hydroxyl group ratio of 1 : 0À2 to 1 : 1À8, an acid number of 35- 150, and a weight average molecular weight of 5000-80,000; and (2) 10-40% (based on the film-forming constituents) of a compatible water-dispersible or water-soluble alkylated melamine-formaldehyde or urea-formaldehyde resin, the composition containing an amine sufficient to provide a pH of 6 to 9. The compositions preferably also contain 0À1-40% by weight of a pigment (e.g. organic pigments, and aluminium flake). The acid component (d) of the acrylic polymer is preferably acrylic, methacrylic or itaconic acid, and the preferred alkylated amino-resin (2) is hexa(methoxymethyl) melamine. A silicone anti-cratering agent may also be included in the compositions, as well as an n-butyl acrylate-acrylic acid copolymer. The compositions can be applied to substrates such as glass, plastics, glass fibrereinforced plastics and metal, e.g. automobile bodies.
Patent GB-1237878-A (GB)
Title: Substituted bis-coumarinyl derivatives
Inventor: FITZMAURICE COLIN
IPC: C07D311/16
Filed: 1967-11-22
Abstract: 1,237,878. Bis-coumarinyl derivatives. FISONS PHARMACEUTICALS Ltd. 12 Nov., 1968 [22 Nov., 1967], No. 53077/67. Heading C2C. Novel bis-coumarinyl compounds of the general formula where Q and Q<SP>1</SP> are the same or different, and each is hydrogen, alkyl, alkoxy, substituted alkyl or alkoxy, hydroxy or halogen, R and R<SP>1</SP> are the same or different and each is hydrogen, acetoxy, alkyl, alkoxy, substituted alkyl or alkoxy, hydroxy or halogen, P and P<SP>1</SP> are hydrogen or acyl, T and T<SP>1</SP> are alkyl or aryl, and X is a saturated or unsaturated, substituted or unsubstituted, straight or branched hydrocarbon chain, any carbon atom of which may be replaced by one or more carbocyclic or heterocyclic rings, carbonyl groups or oxygen atoms, are prepared by reacting in one or more stages a compound of the formula or a functional derivative of the phenolic OH group, and a compound of the formula or a functional derivative of the phenolic OH group, with compounds of the formulµ AM and BN or with a compound AX<SP>1</SP>B, where A and B are groups capable of reaction with the phenolic OH groups to yield ether linkages, M and N are groups which react together to yield a group X<SP>1</SP> which is either a group X, or with the groups A and B forms a group X. The process may be carried out in a single step or in stages. The disodium salt of 1,3-bis(2-carboxy-chromon- 5-yloxy)propan-2-ol monohydrate is prepared by basic hydrolysis of 1,3-bis(4-methyl-8-acetylcoumarin-7-yloxy)-propan-2-ol, reacting the resulting 1,3 - bis(2 - acetyl - 3 - hydroxyphenoxy)- propan-2-ol with diethyl oxalate and sodium in ethanol, and treating the resulting diethyl ester of 1,3 - bis(2 - carboxy - chromon - 5 - yloxy)- propan-2-ol with sodium hydroxide.
Patent GB-1442877-A (GB)
Title: Shadow masks
IPC: H01J31/20
Filed: 1974-12-09
Abstract: 1442877 Colour television tubes NIPPON ELECTRIC CO Ltd 9 Dec 1974 [10 Dec 1973] 53147/74 Heading H1D To facilitate the lighthouse method of manufacture of, and avoid distortion of the phosphor stripes at the side edges of, the phosphor screen of a shadow mask colour television tube, the lines of elongate apertures 22 near the centre line of the mask are substantially parallel to the centre line, while lines of apertures 21 successively further away from the centre line exhibit a successively increasing curvature. A mathematical derivation of the line curvature as a function of distance from the centre line is provided. Reference is made to the use of the mask in a black matrix tube.
Patent GB-1210924-A (GB)
Title: Dithiophosphorous esters and fungicidal compositions containing them
Inventor: SCHRADER GERHARD
IPC: C07F9/205
Filed: 1967-11-22
Abstract: 1,210,924. Dithiophosphorous acid esters. NIHON TOKUSHU NOYAKU SEIZO K.K. 22 Nov., 1967 [1 Dec., 1966 (2); 12 Jan., 1967; 25 Feb., 1967], No. 53228/67. Heading C2C. [Also in Division A5] Novel compounds of the formula in which R is an alkyl or haloalkyl group, X is a halogen atom or alkyl group, and n is 0 or 1, are prepared by reacting an alkyl dihalogeno phosphorous acid ester of the formula in which Hal is a halogen atom, with a compound of the formula in which M is a hydrogen atom or an alkali metal atom. The reaction may be carried out with heating, and an organic solvent and/or an acid-binding agent, e.g. an organic or inorganic base, may be present. The compounds have fungicidal properties.
Patent GB-1430909-A (GB)
Title: Method of manufacturing a torus-shaped lamp envelope
IPC: C03B23/06
Filed: 1974-12-10
Abstract: 1430909 Bending glass tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Dec 1974 [13 Dec 1973] 53334/74 Heading C1M In a method of bending a glass tube 1 (e.g. for fluorescent lamp envelopes) in which the tube is bent around a mould 4 in a vertical plane, the bent tube is engaged by a support member 5 so that it may be lifted clear of the mould 4 before the tube has cooled to a temperature at which no further deformation takes place. The support member preferably comprises a suction tool attached to an air line 6. Prior to the tool contacting the tube cooling air P may be blown down the line on to the part of the tube to be contacted. The castings are preferably annealed at 1065‹ C. prior to further operations.
Patent GB-1474930-A (GB)
Title: Integrable circuit for monitoring a supply voltage
IPC: H01L27/02
Filed: 1974-12-10
Abstract: 1474930 FET switching circuits ITT INDUSTRIES Inc 10 Dec 1974 [12 Dec 1973] 53354/74 Heading H3T In a circuit for giving a step signal at S when the supply voltage U B  reaches a predetermined threshold, the threshold is set by the sum of the gate threshold voltages of complementary IGFETS T11 and T21. T11 is initially off, but when U B  has reached the gate threshold voltage of T11, the latter conducts with T12 acting as its load resistor. The voltage at the junction of T11 and T12, which follows the increasing U B  off-set by the gate threshold voltage of T11, is a applied to the gate of IGFET 21 so that when U B  reaches the sum of the gate voltages of T11 and T21, T21 turns on giving a step signal at S. A further IGFET may be connected in the U B  + line between transistors T11 and T22. To prevent the circuit switching in response to short duration increased loads on the supply, a capacitor may be connected across transistors T11 and T21. The circuit may be used to prevent operation of a frequency divider or an ultrasonic remote control device for television before the supply has reached a desired voltage.
Patent GB-1220512-A (GB)
Title: Improvements in or relating to agricultural vehicles
IPC: A01D90/00
Filed: 1968-01-16
Abstract: 1,220,512. Agricultural vehicles. LELY DECHENTREITER MASCHINENFABRIK G.m.b.H. 16 Jan., 1968 [19 Jan., 1967], No. 53413/68. Divided out of 1,220,511. Heading A1F. [Also in Division F4] The subject matter of the present Specification is included in that of Specification 1,220,511, but the claims relate to the vehicle when fitted with drying means.
Patent GB-1068649-A (GB)
Title: Production of 1,2,4-trimethyl-5-isopropyl benzene
IPC: C07C2/70
Filed: 1965-12-16
Abstract: 1,2,4 - Trimethyl - 5 - isopropylbenzene is produced by propylating pseudocumene in the presence of AlCl3, excess propene being used so as to preferentially transform trimethyl isopropylbenzenes other than the required isomer into higher polyalkylbenzene, thus facilitating subsequent separation of the desired product from the reaction mixture, e.g. by distillation. The molar ratio of propene to pseudocumene may be in the range 1.05 to 1.3:1.
Patent GB-1524630-A (GB)
Title: Tetrafluoroethylene resin moulding powder
IPC: C08L27/12
Filed: 1976-12-23
Abstract: 1524630 Tetrafluoroethylene moulding powders containing silicones E I DU PONT DE NEMOURS & CO 23 Dec 1976 [29 Dec 1975] 53757/76 Headings C3M and C3V A moulding powder comprises a mixture of (A) comminuted granular, non-melt-fabricable tetrafluoroethylene polymer with d50<200 Á, (B) particulate filler and (C) sufficient of a silicone to reduce discoloration and/or dark spotting in an air-starved environment. In the examples, the silicone (C) is a propyl modified monophenyl siloxane, a dimethyl polysiloxane, or a phenyl methyl siloxane, while the particulate filler (B) is milled fibreglass or bronze powder, optionally with various pigments.
Patent GB-1212480-A (GB)
Title: Energy absorber structure for a nuclear power plant containment system
Inventor: MARKO MYROSLAW
IPC: G21C9/00
Filed: 1969-11-03
Abstract: 1,212,480. Reactors. NORTH AMERICAN ROCKWELL CORP. 3 Nov., 1969 [12 Nov., 1968], No. 53837/69. Heading G6C. In a nuclear reactor plant, the reactor vessel has a rotatable top shield over which is mounted an energy absorbing girder network, which in the event of an explosion within the vessel, will limit the rise of the top shield from its norml position. The reactor vessel 30 is provided with a top shield 40 comprising rotating plugs 52, 54. The latter are held in position against the force of the internal explosion by the energy absorbing structure 50 which is secured to the reactor vessel by the plates 90. The energy absorber columns 88 buckle at the shell 106 and the guide tube 100 is urged upwards through the guide shell 98.
Patent GB-1450055-A (GB)
Title: Battery charging systems
IPC: H02J7/24
Filed: 1972-11-21
Abstract: 1450055 Battery charging systems LUCAS ELECTRICAL Ltd 11 Oct 1973 [21 Nov 1972 19 Dec 1972] 53840/72 and 58676/72 Heading H2H In a battery charging system, e.g. for a road vehicle, having a voltage-regulated alternator, a non-essential load, such as a rear window demister, is disconnected when the mark/space ratio of the alternator field current attains a predetermined value. As shown, the output of an alternator 11 is rectified at 15 and charges a battery 14. The rectified output voltage is compared with that of a Zener diode 22 and used to control the mark/space ratio of a selfoscillating voltage regulator, comprising transistors 24 ... 27, operating on the field winding 28. A voltage, dependent on the generator voltage, derived by capacitor 62 from the mark/ space ratio of the field voltage, turns on a bistable formed by transistors 65 and 71 and thus turns on transistor 52 which energizes relay 53 which permits energization of the demister 55 by operation of manual switch 41. This action is only possible if the battery voltage is in the range 12À5-14À2 v. If switch 41 is further depressed to a spring-loaded contact 43, a timer comprising capacitor 46 and transistors 47 and 52 allows the demister to be energized for a short period irrespective of battery voltage.
Patent GB-1170919-A (GB)
Title: Phosphor Materials for Arc Discharge Devices.
Inventor: BARRY THOMAS L
IPC: C09K11/77
Filed: 1968-11-19
Abstract: 1,170,919. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS Inc. 19 Nov., 1968 [1 Dec., 1967], No. 54893/68. Heading C4S. In a narrow-band blue-emitting europiumactivated magnesium-containing alkaline-earth orthosilicate phosphor, the Eu is preferably divalent, the atomic ratio of Mg/Si may be 0.375 to 0.625 and the atomic ratio of Eu/Si between 0.0002 and 0À20. The phosphor may be MaMgbEu c Si 2 O 8  where M is Ca, Sr and/or Ba, a is 2À75 to 3.25, b is 0.75 to 1À25 and c is 0.0004 to 0.40, and specific phosphors are instanced. Also instanced are phosphors of formula Ca x Sr 3-x  (or Sr x Ba 3-x  or Ca x Ba 3-x ) -MgSi 2 O 8  :Eu<SP>2+</SP> 0 . 04  with disclosed values of x from 0 to 3, and wherein the ratio of Ca, Sr and Ba atoms to Mg atoms need not be exactly 3 : 1 nor the total number of alkaline earth atoms, including the Mg atoms, to the Si atoms, exactly 4 : 2. Phosphors with Ca, Sr or Sr, Ba combinations are substantially single phase solid solutions but with the Ca, Ba combination, the intermediate compound BaCa 2 MgSi 2 O 8  with Ca 3 MgSi 2 O 8  or Ba 3 MgSi 2 O 8  may be attained. In preparation, the mix may be heated at 1100 to 1300 C. in a nitrogen-hydrogen atmosphere (80/20 ratio). An ammonium chloride flux may be used. Emissions from 4370  to 4750  are instanced and the phosphor may be used in mercury discharge lamps, photocopying and photochemical processing.
Patent GB-1453088-A (GB)
Title: Musical board game
IPC: A63F3/00
Filed: 1973-11-27
Abstract: 1453088 Board game D G WARD 13 Dec 1974 [27 Nov 1973] 54959/73 Heading A6H Game apparatus comprises a board marked with a stave and a track traversing the stave, counters 34a-c, and a random number selector, such as a dice. Two packs of 36 hard and easy question cards and tiles or a lettered card as shown on the right are provided. Other markers 30, 31 (one of each), 32, 33 (three of each) and 35 (several) are also provided and may be differently-coloured. The board may have a zig-zag path marked with notes and query symbols.
Patent GB-1362039-A (GB)
Title: Process for fixing the relative states of charge of the elec trodes in an alkaline storage cell
IPC: H01M10/34
Filed: 1971-11-26
Abstract: 1362039 Charging method for alkaline storage cells SOC DES ACCUMULATEURS FIXES ET DE TRACTION 26 Nov 1971 [30 Nov 1970] 55112/71 Heading H1B A nickel-cadmium cell in which the negative electrode has a greater capacity than the positive electrode is given, before sealing the cell, an overcharge at a temperature below 0 C. to produce an excess charge in the negative electrode. Preferably, the overcharge is performed at - 10 C. and the excess charge on the negative electrode is from 10 to 50% of the difference in capacity between the positive and negative electrodes.
Patent GB-1249990-A (GB)
Title: Display dummy or model
Inventor: LUFF ARTHUR CLARENCE
IPC: A47F8/00
Filed: 1967-12-06
Abstract: 1,249,990. Display dummy. A. C. LUFF. 3 Dec., 1968 [6 Dec., 1967], No. 55481/67. Heading G5G. A display dummy is provided with joints which are movable by means of a pressure fluid, each joint being provided with a chamber in which is provided a resilient bag 42 connected by a tube 41 to the reservoir 45 of a compressor 43 each tube being controlled by a valve 51 operated by a cam 64 driven by an air motor 60. As shown the bag 42 controls the wrist joint, a similar resilient bag being provided at the neck, wrist and elbow joints. Each joint is provided with a spring to give a closing action to each joint, the fluid pressure opening each joint. (For Figure see next column). The following abridgments are included in this series since the Specifications were, through an error, not allotted to this Group. References to them will be found in the indexes to this volume.
Patent GB-1203867-A (GB)
Title: Improvements in or relating to roller shutter cases and their assembly
Inventor: SUZUKI HISAMICHI
IPC: E06B9/17
Filed: 1968-11-26
Abstract: 1,203,867. Roller shutters. H. SUZUKI. 26 Nov., 1968, No. 56132/68. Heading E1J. A roller shutter case or box is assembled by disposing upper and lower closure receiver members 2U-2L within a roller shutter housing space B in a building A, the members 2U-2L extending the length of the space and after a roller shutter S has been installed in the space inserting the closure member in the form of one or more resilient sheets, by fitting the marginal portion 6a, in the form of a flange into the channel of the upper closure receiver member 2U and then fitting the marginal portion of the opposite side of the or each sheet into the channel of the lower member 2L which is mounted on a lintel 1. Intermediate strips may be secured together, but the two endstrips retained removable and engage in second upper receiver member with clip-in edges. The resilient sheets 6 have a portion 6b tangential to a cylindrical or polygonal portion 6C.
Patent GB-1285975-A (GB)
Title: Method of and apparatus for injecting fuel into a diesel engine
IPC: F02M45/06
Filed: 1969-11-17
Abstract: 1285975 Direct-injection engines; fuel injection pumps MITSURISHI JIDOSHA KOGYO K K 17 Nov 1969 [15 Nov 1968] 56223/69 Headings F1B and F1A Fuel injection apparatus for a Diesel engine provides two stage injection during start up, and single stage injection during normal operation of the engine. The apparatus comprises a reciprocating plunger pump 8α having a plunger 12 provided with an inclined crown or a step 11 and angularly adjustable by means of a rack 14. For engine starting a rack-locking means is released by depression of member 19, and rotation of a knob 18 causes the rack to angularly adjust the plunger into a position in which the step 11 is adjacent fuel inlet port 22. During starting, cam 13 rotates anti-clockwise and lobe 13α raises plunger 12 and causes the step 11 to obturate port 22 so that fuel is injected past valve 9 and into pre-combustion chamber 4 of cylinder 1 when the angle of the engine crank is within the range of 270 to 124 degrees before T.D.C. of engine piston 2. Thereafter a period of dwell and zero injection occurs, followed by a second injection caused by lobe 13b raising the plunger further when the engine crank angle is within the range of 23 degrees before T.D.C. to 2 degrees after T.D.C. Once the engine has reached a predetermined speed, a centrifugal governor 16 moves the rack 14 via a lever 15 into a position in which it causes the plunger to adjust through 180 degrees thereby moving the step 11 to a position remote from port 22 so that the latter remains open when the plunger is raised by lobe 13α, but is closed by further raising by lobe 13b. This causes fuel to be injected only once per cycle. If the engine fails to reach the predetermined speed, the knob 18 can be moved to the normal operating position to adjust the plunger. The first stage injection at starting may comprise 25 to 75% of the total fuel injected during both stages.
Patent GB-1101850-A (GB)
Title: A nondestructive eddy current testing device for testing metal tubing
IPC: G01N27/90
Filed: 1966-12-19
Abstract: 1,101,850. Eddy-current flaw testers. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 19, 1966 [Jan. 21, 1966], No.56612/66. Heading G1N. [Also in Division H4] An eddy-current device for testing flaws in metal tubes comprises a probe coil rotating in the bore of the tube and energized at two frequencies to investigate the inner and outer surface regions and provide a simultaneous circular scan display on a C.R.T. Synchronized radial sweep signals are derived from an inductive type sine-cosine resolver (22) driven with the probe coil. The two outputs of the resolver are fed through ring-demodulatortype phase-detectors to R-C sawtooth generators (28) which are gated by a square wave generator (56) to provide a succession of radial scans rotating with the probe Fig. 2 (not shown). A pulse-positionmodulator "unblanks" the C.R.T. beam at a position along the radial scan dependent on the test probe signals. The pulse-position-modulator Fig. 3 (not shown) comprises a sawtooth generator (90) synchronized with the radial scan by the square wave-gating-generator (56). The signal from the test probe is added to sawtooth wave, whereby a trigger circuit (78) is triggered at a time after the start of the radial scan dependent on the amplitude of the probe signal. The resultant pulse from the trigger circuit is differentiated to produce a brightening "spike" for the C.R.T. A similar pulse-position-modulated channel is provided for each frequency applied to the probe coil, thereby providing a number of time/position spaced brightening spikes during each radial scan.
Patent GB-1359158-A (GB)
Title: Hacksaw blades
IPC: B23D61/12
Filed: 1972-12-08
Abstract: 1359158 Saw blades RCF TOOLS Ltd 8 Dec 1972 [8 Dec 1971] 57043/71 Heading B5L A hacksaw blade has teeth set in successive groups of at least four teeth, the first two teeth in each group being set one to each side of the blade while the remaining teeth are left unset. As shown the first two teeth 2 of a group of teeth are set one to each side of the blade and the other two teeth 1 of a group are unset.