baber/WOPTO huggingface dataset:
Patent GB-1528331-A (GB)
Title: Microprogramme data processing technique and apparatus
IPC: G06F9/22
Filed: 1975-09-23
Abstract: 1528331 Microprogramming DATA GENERAL CORP 23 Sept 1975 [25 Sept 1974] 39021/75 Heading G4A A microprogram control store 107, Fig. 5, is addressed using two sets of signals derived from a computer instruction OP code via a ROM 103 and a multiplexer 104. Certain computer instructions (called extended instructions) EIS enable a gate 100 to select one of two groups of signals from IR 65 via MUX 104. The next address for the control memory 107 is obtained via MUX 106 which selectively combines the output of IR decode ROM 105 (as addressed by the predecoded IR output of ROM 103 and MUX 104) with a false address field (bits 48-55) or true address field (bits 40-47) of the current microinstruction or the contents of a subroutine jump address register 111 which allows saving of a current address and jump to another. Unconditional branch to a new address provided by IR, register 111 or the true address field of the current microinstruction and conditional branch to a new address provided by the true or false field of the current micro-instruction is also possible. The last microinstruction of a microprogram which implements a computer instruction specifies LDIR (load instruction register), Fig. 13a which causes phantom logic 112, Fig. 5, to generate a phantom micro-instruction to increment the program counter and to produce a control signal DEC 1 (decode 1) which provides an address to an instruction register decode ROM, 105 from a first group of signals from the instruction register IR. Micro-instruction called from ROM 107 by decode ROM 105 may be common to more than one micro program, e.g. Load byte and Store byte, in which case a further DEC 1 control signal is produced, Fig. 13a, to select the same area of ROM107. When the end of the common part of the microprogram is reached the current microinstruction has a state change field which when decoded at 64 results in a DEC 2 control signal which enables a second area of IR decode ROM 105. Subsequent micro-instructions may cause further jumps to DEC 1 and DEC 2 states, the final micro-instruction of a microprogramme resulting in another LDIR command. The processor also includes a shifter and ALU which has inputs from selected registers in a file (61) or from other sources determined by switching logic (64), Fig. 1 (not shown). Data may be gated to memory from I/O devices via an external data bus (59) or selectively from the register file or ALU via an internal memory bus (57) there being a separate memory address bus (58). A writable control store RAM may also be included to enable a user to implement his own instruction set, tailored to a particular application, in micro-code.
Patent GB-1163313-A (GB)
Title: Detection System for Coherent Light Beams
IPC: G02F2/00
Filed: 1966-09-01
Abstract: 1,163,313. Photo-electric detection apparatus. NORTH AMERICAN AVIATION Inc. Sept. 1, 1966 [Oct. 1, 1965], No.39146/66. Heading G1A. [Also in Division H1| The information signal modulating a coherent carrier light beam is extracted by mixing with the carrier beam a reference light beam so as to produce an interference pattern of fringes the variations in intensity and/or movement of which are detected photo-electrically as representative of the modulations on the carrier beam. The light used is that from laser sources. The modulations impressed on the carrier may be of the amplitude of the light beam, in which case the fringes of the interference pattern vary in intensity, or of the frequency, phase or polarization, when they appear to move across the pattern. In detecting frequency modulations on a carrier beam 13 of varying frequency f 1 , Fig. 2, a reference beam 14 of a fixed frequency f 2  is mixed with the carrier beam and an optical system used to focus and locate the interference pattern formed on the surface of a detector means 7. This comprises two photo-diodes 11, 12 with interlocking fingers each of one (dark or light) fringe width. The outputs of detectors 11, 12 are two signals representing the movement of the fringes across detector, the speed of which movement is proportional to the frequencies f 1  and f 2  i.e. proportional to the information signal. The components of this signal in the output on lines 17 and 18 are 180 degrees out-of-phase, while noise signals generated by the incidence of stray light on the detector are in phase in the two outputs. Thus subtraction of the outputs by transformer 20 produces a signal 19 representing the information required, while noise signals cancel out. The sign of the frequency difference of f 1  and f 2  is given by the direction of fringe movement. In a modification of the detector construction, Fig. 4a (not shown), a block of rectangular photodiodes, each of width equal to half a fringe, is connected to a two-transformer circuit, to enable the sign of the frequency difference to be readily detected using an oscilloscope display. In another arrangement (not shown), a mirror provided with an array of slits passes alternate fringes to a detector behind it, and reflects the rest of the fringes towards a further detector. These detectors are connected to subtraction means as before. Alternatively, a double photo-multiplier is used, having a transparent photo-cathode coated on one side with a photo-sensitive layer of the configuration of diode 11, Fig. 2, and on the other, a layer of the configuration of diode 12, Fig. 2, activated by light transmitted through the electrode. These layers each have their own associated accelerating electrodes and anode, feeding a common subtraction circuit. Instead of a rectangular fringe pattern, a circular one may be used with appropriately designed detectors.
Patent GB-1438361-A (GB)
IPC: B63B25/04
Filed: 1973-08-20
Abstract: 1438361 Hopper barge MITSUI SHIPBUILDING & ENG CO Ltd 20 Aug 1973 [22 Aug 1972] 39237/73 Heading B7A Hopper barge 1 has propulsion units 4, 5 which move the barge transversely at a selected speed. Hoppers 6a, 6b, 6c, 6d have doors 8 controlled by winches 10a, 10b so that particulate material is delivered at a selected adjustable rate to an area under the barge as the barge moves transversely.
Patent GB-970509-A (GB)
Title: Web feeding apparatus
Inventor: PLEVIN HAROLD
IPC: B65H18/14
Filed: 1962-10-17
Abstract: 970,509. Feeding webs. C. A. HARNDEN Ltd. Sept. 13, 1963 [Oct. 17, 1962], No. 39263/62. Heading B6B. A web 14, Figs. 1 and 2, fed from a supply roll 49, passes over guide rollers 39, 40 and a tensioning roller 22 mounted on resiliently urged carriages 23 slidable on guides 25 and carrying a roller 31 acting as a fulcrum for a beam 32. The carriages 23 are controlled by hydraulic or pneumatic rams 30 and by the web tension. The beam 32 is connected at one end to a ram 33 and at the other to a band brake 38 engaging the roll spindle 21. The rams 30, 33 are supplied from a common source of pressure adjustable according to the desired web tension. If the tension increases, for example as the roll diameter decreases, the web moves the roller 22 which moves the fulcrum roller 31 so that the brake force applied from the ram 33 through the beam 32 is decreased to compensate. The take-up roll 13 is supported on driven rollers 11, 12.
Patent GB-893989-A (GB)
Title: Process for modifying polymers and products obtained thereby
IPC: B29C35/08
Filed: 1958-12-09
Abstract: Cross-linked polymers are produced by subjecting a polymer which is cross-linkable by high energy particulate radiation, having dispersed therein from 0,1% to 30% by weight of a finely divided polymeric perfluoroolefin resin, to particulate irradiation, either directly with a beam of particles such as electrons, protons, neutrons, deuterons, alpha particles and beta particles or by generating such irradiation within the material by means of a beam of high energy, short wave-length, electromagnetic radiation such as X-rays or gamma rays.  The polymer may be a polycarbonamide, a polyester, natural rubber, a butadiene polymer, a polymer of ethylene, propylene, butene-1, decene-1 or styrene or a copolymer of two or more of these 1-olefins.  The polymeric perfluoroolefin may be polytetrafluoroethylene, polyhexafluoro-propene or a copolymer of tetrafluoroethylene and hexafluoro-propene.  Specification 884,771 is referred to.
Patent GB-1354180-A (GB)
Title: Process for the continuous manufacture of acetylacetone
IPC: C07C45/81
Filed: 1971-08-24
Abstract: 1354180 Acetylacetone WACKER-CHEMIE GmbH 24 Aug 1971 [25 Sept 1970] 39653/71 Heading C2C Acetyl acetone is prepared continuously by the thermal rearrangement of vapour phase isopropenyl acetate at 300 to 600 C. in the presence of one or more lead-tetraalkyls(PbR 1 - R 2 R 3 R 4 ) where R 1 , R 2 , R 3  and R 4  are the same or different and are ethyl or methyl groups, condensing the hot reaction vapours and distilling the condensate. The lead tetraalkyl may be tetramethyl and may be lead tetraethyl or lead in combination with at least one brominated hydrocarbon, e.g. dibromoethane.
Patent GB-1109996-A (GB)
Title: Improvements in or relating to electromechanical band-pass filters
IPC: H03H9/50
Filed: 1965-12-21
Abstract: 1,109,996. Electro-mechanical filters. SIEMENS A.G. 21 Sept., 1965 [21 Sept., 1964], No. 40123/65. Heading H3U. An electromechanical band-pass filter comprising a plurality of mechanically coupled resonators, at least the terminal resonators being provided with electromechanical transducers and at least one supplementary element providing coupling between two of the resonators to produce an attenuation pole in the filter stopband, is characterized by at least one shunting reactance in a path shunting at least the supplementary element and the couplings of the element with the resonators. The object of the invention is to obtain very strong peaking of one or both blocking attenuation flanks of the pass band. The effect of the shunting reactance is either to shift the existing attenuation pole or poles flanking the pass band or to produce an additional attenuation pole or poles adjacent the pass band. In one embodiment, Figs. 10, 11, a band-pass filter comprises four steel bar resonators 20 ... 23 interconnected by coupling wires 33 ... 35, the terminal resonators 20 and 23 having electrostrictive plates 37 ... 40 and 49 ... 52, respectively, connected by wires 55, 56, 56<SP>1</SP> and 57, 58, 58<SP>1</SP> to parallel resonant circuits 24 and 25. The electrostrictive plates are polarized in the directions of the arrows 45 ... 52 and the resonators 21, 22 have chamfered edges 59 so that on application of an A.C. voltage to the input terminals 28, 29 the electrostrictive plates 37 ... 40 expand and contract to produce flexural oscillations in the resonator 20 in the direction 11 these oscillations being transmitted through the wires 33 . . . 35 to produce oscillations in the directions 12 . . . 16 in the resonators 21 . . . 23 and the plates 49 ... 52 cause an A.C. output to be generated at terminals 30, 31. The supplementary element afore-mentioned is constituted by a coupling wire 36 joining the resonator 20, 23 in the region of the anti-node, this wire producing two attenuation poles one above and one below the pass band. The shunting reactance afore-mentioned is constituted by a capacitor C v  and this produces two further attenuation poles, one above and one below, the pass band. Fig. 12 (not shown) illustrates the equivalent circuit and Fig. 13 (not shown) illustrates the frequencyattenuation characteristics of the filter. In another embodiment (Fig. 14, not shown) the filter comprises two resonators (65, 66) having electrostrictive plates (68, 69) and which vibrate longitudinally. The supplementary element is constituted by a torsional resonator (76) connected by wires (67, 67<SP>1</SP>) to the resonators (65, 66) and the shunting reactance is constituted either by a capacitor (82) or by a coupling wire (84).
Patent GB-1318310-A (GB)
Title: Control adjuster for hydraulic apparatus
IPC: F16K37/00
Filed: 1970-08-21
Abstract: 1318310 Valves INTERNATIONAL BASIC ECONOMY CORP 21 Aug 1970 [2 Oct 1969] 40394/70 Heading F2V A valve (not shown) is adjusted by a rod 30 rotatably mounted in a housing 22 and provided with a control knob 26 and a calibrated cylindrical portion 91 visible through a calibrated window 17 in a casing 98 mounted on the housing 22 and provided with an access aperture 116. The calibrations provide a linear vernier readout of the position of the valve while the aperture 116 enables a bolt 90 to be loosened so that the knob 26 may be used to position the valve while the portion 91 is held at zero position by a pin inserted through holes 112 and 114 after removal of a security casing 66. The latter is normally secured by a padlock 84 to a flange 82 secured by a set screw 71 to the housing 22. The rod 30 is connected by a spring and ball thrust bearings to the valve spool and is in threaded engagement with a nylon locking ring 24, interference at the threaded junction being such that the ring snugly grips the rod.
Patent GB-1388492-A (GB)
Title: Chromophore-substituted halomethyl-s-triazines
IPC: C08F2/46
Filed: 1972-08-31
Abstract: 1388492 Methin dyes MINNESOTA MINING & MFG CO 31 Aug 1972 [3 Sept 1971] 40496/72 Heading C4P [Also in Divisions G2 and C3] s-Triazines capable of generating free radicals on stimulation by actinic radiation in the 330- 700 mÁ wavelength range comprise at least one mono-, di- or tri-halomethyl group and at least one chromophoric moiety conjugated with the triazine ring by ethylenic unsaturation. Preferred dyes are of formula (in which Q is Br, or Cl, P is -CQ 3 , -NH 2 , -NHR, -NR 2  or -OR; R is phenyl or 1-6 C alkyl; n is 1-3; W is an optionally substituted aromatic or heterocyclic nucleus or of Formula (II) Z is O or S; R<SP>1</SP> is H, 1-6 C alkyl or phenyl). The dyes are prepared by conventional condensation reactions and used as photoinitiators in photosensitive compositions (see Divisions G2- G3 and C3). In specified dyes Q is Cl; P is CCl 3  or NH 2 ; n is 1-3; W is Formulae II above in which Z is O and R<SP>1</SP> is C 2 H 5 , is phenyl which may be substituted by Cl, N(CH 3 ) 2 , amyloxy or mono- or di-methoxy, or is 1-methyl-2-(pmethoxyphenyl)-indol-3-yl.
Patent GB-1020896-A (GB)
Title: Improvements in or relating to impellers for compressors
IPC: F04D29/32
Filed: 1962-10-29
Abstract: 1,020,896. Axial-flow compressors. ESCHER WYSS A.G. Oct. 29, 1962 [Oct. 27, 1961], No. 40846/62. Heading F1C. In an impeller, for axial-flow compressors, having at least one stage with a ring of blades rotatably adjustable during operation, a blade mounting for absorbing centrifugal forces directed along the axes of rotation of the blades has, for each blade, a tension element which is elastically rotatable about the rotational axis of the associated blade and has its ends respectively connected to the associated blade root and the impeller hub in a non-rotatable manner relatively to the rotational axis of the blade. A compressor rotor, Figs. 1 and 2, has rim portions 6, 7 bolted together at 8 and provided with bores 9 containing bushes 10, 11 and the cylindrical roots 12 of rotor blades 13. Each root 12 is secured by a sleeve 25 to a tension element comprising plates 22 packed as shown or spaced apart singly or in groups. The other end of the tension element is secured to the impeller hub by a pin 26. The radially inner ends of the tension elements may instead merge into a common ring in which case the rim portions 6, 7 may be joined at a plane which passes through the axes of rotation of the blades. The ends of each tension element may be of fir-tree form, Fig. 9, located in fir-tree grooves in the impeller hub and blade root and positioned by pins 64, 65 and reinforcing plates 63. Each blade 13 has secured thereto, by a pin 47, Figs. 1 and 3, a forked lever 32 provided with an opening 33 for passage of an adjacent tension member. Each lever 32 is connected to an axially adjustable control ring 40 by a pin 39. A rod 43, provided with a bolt 44 located in an annular groove 45 in the ring 40, controls the axial position of the ring 40 and thereby the degree of rotation of the blades 13. Longitudinal grooves 46 permit removal of the rod 43 after rotation through 90 degrees. Each tension element may be pre-stressed about the rotational axis of its associated blade to continuously subject the blade to a torque opposing the torque exerted on the blade by centrifugal force.
Patent GB-1492038-A (GB)
Title: Water-hardenable powder material particularly for use in an orthopaedic bandage
IPC: A61L15/12
Filed: 1975-12-17
Abstract: 1492038 Casts; stiffening bandages SMITH & NEPHEW RESEARCH Ltd 17 Dec 1975 [19 Sept 1974] 40846/74 Heading A5R [Also in Division C3] Splinting or casting materials for supporting broken or damaged limbs are formed by loading and/or impregnating a carrier, e.g. a gauze bandage, with a slurry in a volatile organic liquid of (a) a water-soluble carboxylic polymer, e.g. polyacrylic acid or a methyl vinyl ether/maleic acid copolymer, and (b) a zinc oxide or salt with a weak acid, which has been at least partially coated with an organic acid, e.g. oleic acid, to reduce the surface reactivity thereof.
Patent GB-1010852-A (GB)
Title: Process for the manufacture of high molecular weight linear copolyesters
IPC: C08G63/06
Filed: 1961-11-15
Abstract: In the manufacture of polycarbonates by reacting phosgene with a diester of a dihydric alcohol and a benzene hydroxycarboxylic acid in the presence of an alkali, a molar excess of phosgene is used and part of the alkali is added gradually during the phosgenation. Preferably the dihydroxy ester is dissolved in an aqueous solution of the alkali and the reaction is effected in the presence of a hydrocarbon or chlorinated hydrocarbon which dissolved or swells the polycarbonate to be formed.  Catalysts for the reaction are quarternary ammonium compounds and tertiary amines.  Specified diesters are three obtained by reacting (a) 1 mol of ethylene glycol, diethylene glycol, triethylene glycol, thiodiglycol, 1:3-propanediol, 1:3- or 1:4-butanediol, 1:5-pentanediol, 1:6-hexanediol, 2-ethyl-1:3-propanediol, quinate or p-xylylene glycol with (b) 2 mols of p-hydroxybenzoic acid, vanillic acid, 4-hydroxy-3-methylbenzoic acid and 4 - hydroxy - 3,5 - dimethoxybenzoic acid.  In examples the ethylene glycol ester of vanillic acid and p-hydroxybenzoic acid are used.  Uses.-Films and fibres.  Specification 908,851 is referred to.
Patent GB-999779-A (GB)
Title: Method of producing raised textile fabrics
Inventor: ZSCHUNKE HEINZ
IPC: D04H13/00
Filed: 1961-11-15
Abstract: 999, 779. Pile fabrics. FORSCHUNGSINSTITUT FUR TEXTILTECHNOLOGIE. Nov. 15, 1961, No. 40919/61. Heading D1K. A raised pile fabric is formed by laying yarns, roving, slubbing or fibre fleeces 2 transversely on one or both sides of a ground fabric 1 and being secured thereto by longitudinal seams 3, the layer 2 then being finished by raising and cropping. The ground material 1 may be woven, knitted or other sheet textile material and the seams 3 may be effected by sewing, adhesion or welding. Examples of ground fabrics of cotton, rayon and wool mixture are given with pile material of cotton or rayon yarn, and wool and viscose fibre fleece.
Patent GB-1039798-A (GB)
Title: Electro-deposition of quaternary magnetic alloy of iron, nickel, antimony and phosphorous
IPC: H01F41/26
Filed: 1963-10-18
Abstract: Magnetic films of Ni-Fe-P-Sb are deposited electrolytically from an aqueous acid plating bath containing Ni++, Fe++, H2PO2-, and SbO+ as the only platable ions and 0.014 to 0.023 moles/litre Fe++, the ratio ranges on a normality basis being 0.017 to 0.028 for Fe++/Ni++, 0.00009 to 0.00027 for SbO+/Ni++ and 0.0011 to 0.0034 for H2PO2-/ Ni++. Plating is effected from a bath of pH 2 to 5 at a temperature of 22 to 30 DEG C.with a cathode current density of 3 to 10 mA/cm2 for a period of 55 to 150 secs. The bath comprises nickel and iron sulphates, tartar emetic, sodium hypophosphite boric acid, NaCl, saccharin and sodium lauryl sulphate, and deposition is effected on to cleaned and polished conductive bases as of metal or of glass or plastic rendered conductive with a vapour deposition layer of gold or chromium followed by gold over the whole base or selected areas. A magnetic field may be applied during electroplating.  The quaternary alloy forming the magnetic film consists on a weight percentage basis of 70 to 80% Ni, 16 to 28% Fe, and 2 to 4% of P and Sb together, preferably 79.5% Ni, 17.6% Fe, 2.0% P, and 0.9% Sb.
Patent GB-1469249-A (GB)
Title: Sheet stack loading mechanism
IPC: B65H1/06
Filed: 1974-09-25
Abstract: 1469249 Separating sheets INTERNATIONAL BUSINESS MACHINES CORP 25 Sept 1974 [31 Oct 1973] 41646/74 Heading B8R In a device for separating sheets from the bottom of a pile by means of a friction roller 4, the pressure of the pile on the roller is maintained as the pile is depleted by a magnetically biased pressure plate 26. The plate is pivotally mounted on a T-member 31 which in turn is pivotally mounted at 35 on the frame 1 of the device. A permanent magnetic strip 33 is arranged to attract a spring 32 which acts on the T-member 31 to attract this member towards the pile. The pile is normally held out of contact with the roller 4 by a roller 9 mounted on a T-bar 7 pivoted at 10 and biased upwardly by spring 19. A solenoid 15 is energized to withdraw the roller 9 and allow feeding of a card through throat 25.
Patent GB-954093-A (GB)
Title: Improvements in or relating to shovel bucket loading machines
Inventor: BATEY WILLIAM ALVIN
IPC: E02F3/407
Filed: 1961-11-22
Abstract: 954,093. Shovelling machines. EIMCO CORPORATION. Nov. 19, 1962 [Nov. 22, 1961], No. 41747/61. Heading E1F. The rear of a vertically swingable scoop 10 open at least at one of the ends thereof is formed by a sideways discharging endless belt, scraper chain or scroll conveyer 21.
Patent GB-997135-A (GB)
Title: Improvements relating to polyethylene emulsions
IPC: C08F8/32
Filed: 1963-10-25
Abstract: An emulsifiable polymer is produced by oxidizing a high density ethylene homopolymer or copolymer with an alpha-olefin, said polymer having a density of 0.935 to 0.970 and a melting point of 115 DEG  to 137 DEG  C., the oxidation being in the solid phase at a temperature of at least 100 DEG  C., but below the melting point of the polymer and carried out until the product contains 0.20 to 2.0 milliequivalents of carboxyl groups per gram and the ratio of the milliequivalents of carboxyl groups to the square root of the melt index of the oxidized polymer is above 0.008.  Stable emulsions of the products may be obtained by vigorously mixing with an emulsifying agent and a base (which neutralizes the carboxyl groups). Conventional additives also may be present, e.g. phenolic or amine stabilizers.
Patent GB-1318405-A (GB)
Title: Switching system for a three-chennel flight control system
IPC: G05D1/00
Filed: 1970-09-03
Abstract: 1318405 Protective arrangements VEREINIGTE FLUGTECHNISCHE WERKEFOKKER GmbH 3 Sept 1970 [11 Sept 1969] 42311/70 Heading H2K In a flight control system having three control channels 1-3 acting on a common controlled device (not shown), a protective system is arranged so that after disconnection of a first channel, e.g. channel 1, on operation of a fault detector 4, the remaining channels 2, 3 are individually connected to the ends of series connected resistors 19, 20 from the junction of which the controlled device is energized. The remaining channels 2, 3 are also connected to a differential amplifier 23 which in the event of a second channel becoming defective, supplies an output signal having a polarity dependent on the relative polarity between the channels and causes the operation of a relay C or D by rendering a transistor 31 or 32 conductive. The operation of the relay C or D prepares a circuit at contacts c 2 , c 3  or d 2  for a relay A or B, this circuit being completed on the operation of a control column, tending to correct for the fault, changing over a switch S 1  or S 2 . The consequent energization of the relay A or B causes the opening of contacts a 1  or b 1  to interrupt the defective second channel.