baber/WOPTO huggingface dataset:
Patent GB-1458915-A (GB)
Title: Vinylidene fluoride resin composition
IPC: C08L27/00
Filed: 1974-09-13
Abstract: 1458915 Vinylidene fluoride resins KUREHA KAGAKU KOGYO KK 13 Sept 1974 [13 Sept 1973] 39988/74 Heading C3P A vinylidene fluoride resin composition comprises 100 parts by weight of a vinylidene fluoride resin with from 1-10 parts by weight of a polyester comprising a chain which contains recurring units of an ester obtained from a dihydric alcohol having 2 to 4 carbon atoms and a dicarboxylic acid having from 4 to 6 carbon atoms and having a molecular weight of 1500 to 4000, and each end of the chain of the polyester terminating via an ester linkage in a group derived from a monobasic acid having from 1 to 3 carbon atoms or monohydric alcohol having from 1-3 carbon atoms. The vinylidene fluoride resin may have an inherent viscosity of 0À7 to 2À0. The polyester addition may have the formula in which PG represents a propylene glycol radical, Bu represents a butanediol radical and AG represents an adipate radical, such esters having molecular weights ranging from 1600 to 3000. The resins can be spun into fibres suitable for making fishing lines.
Patent GB-1436089-A (GB)
Title: Process for the preparation of furylbenzimidazoles
IPC: C07D307/52
Filed: 1974-09-13
Abstract: 1436089 Furylbenzimidazoles BAYER AG 13 Sept 1974 [14 Sept 1974] 40019/74 Heading C2C 2-Furylbenzimidazoles of general formula wherein A represents the remaining members of an aromatic ring system which is fused-on in the manner shown; R is H or an optionally substituted alkyl, cycloalkyl, aralkyl or aryl group and Ar is an aromatic radical, are produced by condensing at 0-35‹ C. an aldehyde of general formula and an aromatic diamino compound of general formula to form an azomethine and dehydrogenating the azomethine at 0-35‹ C. by means of a quinone or by means of O 2  in the presence of an oxygen-transferring catalyst. The two stages are preferably carried out at 10-30‹ C. The condensation is advantageously performed in a polar organic solvent with the exclusion of O 2  using 0À5-3% less than the stoichiometric amount of the diamino compound. A suitable quinone for use in the process is chloranil and there is preferably no isolation of the azomethine before the dehydrogenation stage. Amongst the examples the compound 2-(11- methyl - benzimidazolyl - (2<SP>1</SP>)) - 5 - (3<SP>1</SP>4<SP>1</SP>- dichlorophenyl)furan is prepared.
Patent GB-972930-A (GB)
Title: Improvements in or relating to governors
IPC: G05D13/08
Filed: 1963-10-11
Abstract: 972,930. Speed governors. WILLIAMS RESEARCH CORPORATION. Oct. 11,1963 [May 6, 1963], No. 40294/63. Heading G3B. In a fluid fuelled powered engine in which fuel is passed through passages 19, 21, 57 and 63, outlet 65 and passages 37, 33 and 29 to a combustion chamber 27 supplied with air by a compressor 23 through louvres 28 the fuel supply through the outlet 65 is controlled by a counterweight valve 95, secured to a loop shaped spring 89 mounted on a diametrically adjustable bracket 88, and the arrangement is such that the valve 95 closes the outlet 65 when the engine reaches a predetermined speed. The fuel 98, due to centrifugal force, will tend to be held against the wall of the passage 37 creating a central air space 99 from which the air is released to atmosphere through passages 66, 72.
Patent GB-1449540-A (GB)
Title: Nitrostyrene derivatives process for their preparation and compo sitions containing same
IPC: C07D277/58
Filed: 1974-09-17
Abstract: 1449540 Nitro-styrene derivatives SARABHAI RESEARCH CENTRE 17 Sept 1974 [21 March 1974 (3)] 40389/74 Heading C2C Novel compounds I in which R 1  is H, Me or Et, R 2  is H, Cl or Br and R 3  is, 5-nitro-thiazol-2-yl-oxy or (in which R 4  is C 1-4  alkyl, C 5-6  cycloalkyl or phenyl optionally monosubstituted by Cl, Br, I, OMe, Me or NO 2  and X is O or S) are prepared by refluxing an R 2  and hydroxy substituted benzaldehyde with a C 3-4  alkylamine in a hydrocarbon solvent to produce the corresponding aldimine which is reacted with a nitroalkane R 1 -CH 2 -NO 2  in an aliphatic acid or in an alcohol containing an aliphatic acid at 50‹ to 110‹ C. to produce a compound III which is converted into its alkali metal salt and reacted with (i) 2-halo-5-nitro-thiazole to form a compound I (R 3 =5-nitro-thiazol 2-yloxy) or (ii) a compound R 4 -N=C=X to form a compound I (R 3 =O-C(=X)-NHR 4 ). Compounds I have anti-fungal, anti-bacterial and anthelmintic properties and may comprise a composition which may be administered orally.
Patent GB-1454183-A (GB)
Title: Process for the production of synthetic filaments by melt spinning
IPC: C08L83/00
Filed: 1974-09-17
Abstract: 1454183 Spinnerets with silicone coating AKZO NV 17 Sept 1974 [15 Oct 1973] 40428/74 Heading B5B [Also in Divisions C2 and C3] Spinnerets used in the melt-spinning of synthetic polymer filaments are coated with a layer of liquid silicone stabilized by one or more cerium compounds. The silicone may be polydimethyl siloxane and may be up to 10% phenylated. The cerium compound may be cerium sulphate or nitrate, or cerium acetylacetonate which is formed by reacting cerium nitrate with acetylacetone and ammonia. The viscosity of the silicon may be 50 to 600 cP.
Patent GB-1502006-A (GB)
Title: Manufacture of printed circuit boards and the like
IPC: H05K3/00
Filed: 1975-10-04
Abstract: 1502006 Computer aided circuit design MARCONI CO Ltd 26 April 1976 [4 Oct 1975] 40733/75 Heading G4A An artwork master fron which a printed circuit board or the like (e.g. an MOS circuit) may be produced is formed by using a computer, in a first stage, to determine the position of a conductive track required to interconnect two circuit points by determining the positions of points 37-41 each representing the point at which the track crosses a grid line A-G and, in a second stage, to determine from the points the lengths and positions of horizontal and vertical track sections, e.g. 42, required to form the track, by instructing the computer to modify the position of one or more of the points derived, and by causing the computer to repeat the second stage above to produce an amended result. Double sided circuit boards are produced with pins arranged in rows and columns and with conductive tracks interconnecting desired pins, vertical track sections being formed on one surface of the board and horizontal track sections on the other, plated "through holes" being provided to interconnect vertical and horizontal sections as appropriate. The computer operates automatically in two stages, firstly to route a connection between two specified pins using a system of priorities, e.g. by progressing from left to right across the board until a free vertical track space is located and continuing the process until the track has reached the same vertical position as the second of the two pins. Thus the locations of points 37-41 are determined. In the second stage the computer calculates the positions and lengths of the appropriate vertical and horizontal track sections where possible. However, as is the case in Fig. 5 with section 48, some sections can not be formed. The operator is presented with a display of the (partial) result and then instructs the computer to reposition one or more of the points at which the vertical track sections cross the horizontal grid lines, e.g. in Fig. 5 the point on track C4 at row HS2 and column VT3 is moved to row HS3 and column VT5. The computer then recalculates the positions and lengths of the track sections and produces a further display which may be the final result or may be corrected further. Further modifications may be made by the operator, e.g. varying the spacing between the horizontal grid lines or exchanging the positions of circuit components to simplify the routing problem. In a preliminary stage prior to the operation described above selected pins in the same row may be interconnected by tracks following a serpentine course as necessary. The operator may instruct the computer by typing instructions or by using a light pen and a computer controlled display. The operator need not consider dimensions which are stored by the computer and used in forming a photographic master which in turn is used to construct the circuits.
Patent GB-1472411-A (GB)
Title: Harmonic and power factor compensation for power systems
IPC: H05B6/08
Filed: 1974-09-19
Abstract: 1472411 Filters INDUCTOTHERM CORP 19 Sept 1974 40836/74 Heading H3V [Also in Division H2] To reduce harmonic currents in a power supply system for a load 20 and comprising a non-linear device 22, e.g. a saturable reactor or S.C.R., a filter network 24 is provided which comprises a filter F3, &c for each harmonic to be reduced, each filter being tuned to a frequency less than its corresponding harmonic frequency and having a net inductive reactance at the corresponding harmonic frequency. The capacitors of the filter network 24 provide a leading power factor at the fundamental power supply frequency to compensate for a lagging power factor component introduced by the device 22. The load 20 may be an induction furnace corrected, e.g. by a capacitor, to have unity power factor at the fundamental frequency. Alternatively, the load may be lighting or heating generally, and static frequency multipliers may also be included. Given the line reactance X 1  and the amount of harmonic current which it is permitted to reflect back into the supply E 1 , calculations are made to determine the values of the elements in network 24 in terms of the load R. To enable the power factor at relatively high and low power levels to be corrected, the filter F 3 , may comprise two parallel branches (Fig. 6, not shown), which are selectively connectible across the load by respective switches (34, 36). A third switch (38) interconnects the two branches. Filter F 5  may be similarly sectionalized.
Patent GB-892840-A (GB)
Title: Improvements in and relating to devices for control of gearboxes
IPC: F16H63/30
Filed: 1959-12-02
Abstract: 892,840. Variable-speed control. COMPAGNIE DE PONT-A-MOUSSON. Dec. 2, 1959 [Dec. 9, 1958], No. 40922/59. Class 80 (2). The hydraulic actuators V 1 , V 2  . . . of a constant-mesh epicyclic gear-box A have pressure connections 25, 26 ... with a double-acting piston selector valve 33, with which is associated an electromagneticallyoperated pilot valve 66 and an accumulator G. The valve 33 has ball detents 45, 49 engaging notches 44, 47 for locating it after a gear change, and may be operated manually through a lever 57, or through the pilot valve 66 which may be controlled either by a manual selector switch 89 or an enginedriven centrifugal regulator R 1 . The system operates in such a way that the accumulator G is discharged in effecting a gear change, at the conclusion of which pilot valve 66 is centred to enable the accumulator to be recharged by an engine-driven pump D. Upon starting the engine a second regulator R 2  operates to close a contact I o  and energize a solenoid 11 whereby a spring-loaded valve 9 is moved into a position in which it cuts off a pipe connection 8 with the end of the selector valve cylinder, and pump D then discharges through pipes 6, 15, 16 to the selector and pilot valves. Operation.-Up and down shifts are initiated by solenoids 79, 80, energizing of one of which by selector switch 89 or regulator R 1  displaces pilot valve 66 to place accumulator G in communication with the appropriate selector valve chamber K or L through pipe 23 or 24, the resulting movement of valve 33 placing supply pipe 15 in connection with the required actuator V 1 , V 2 , . . . to effect gear shift. After the momentary energizing of solenoid 79 or 80 a spring 76 centres pilot valve 66 to enable pump D to recharge accumulator G through a valve passage 71. Regulator R 1  operates through contacts I 1 , I 2 , I 3 , 1 4  which are closed successively as the engine speed increases, but closing of contacts I 1 , I 4  is ineffective as a contact C 3  in the solenoid circuit is held open by selector valve 33 in first gear, Figs. 2 and 3 (not shown), while closing of contact I 3  is also ineffective as a further contact C 4  is held open by depression of the accelerator pedal, Fig. 4 (not shown); thus second gear is engaged upon closure of contact I 2  at maximum engine speed. Upon decrease of speed, with the accelerator depressed, a contact C 5  is closed enabling third gear to be engaged upon closure of contact I 4 , but upon a further decrease of speed, contact C 4  still being open, fourth gear cannot be engaged when contact I 3  is closed, and speed continues to fall until contact I 1  is closed and first gear thus engaged. First gear is automatically engaged under slow-running conditions by regulator R 2  opening contact I 0  and de-energizing solenoid 11, whereby valve 9 operates to place pipes 5, 8 in communication and lock valve 33 in the first gear position, further movement to the right being prevented by an exhaust port 31.
Patent GB-1343594-A (GB)
Title: Thiono-phosphoric-phosphonic- acid esters and ester amides a process for their preparation and their use as insecticides and acaridides
IPC: A01N57/08
Filed: 1972-09-04
Abstract: 1343594 Pesticidal phosphorus-containing quinoxaline derivatives BAYER AG 4 Sept 1972 [4 Sept 1971] 40966/72 Headings C2P and C2C Novel compounds of Formula I where R<SP>1</SP> is C 1-10  alkoxy or di(C 1-4  alkyl)amino, R<SP>11</SP> is C 1-6  alkyl or alkoxy, phenyl or di(C 1-4  alkyl) amino, the CH 3 O- radical is in the 6- or 7-position, and X is oxygen or sulphur, may be prepared by reacting 2-hydroxy-6- or 7-methoxyquinoxaline in the form of an alkali metal, alkaline earth metal or ammonium salt, or in the presence of an acid-binding agent, with a compound of Formula II where Hal is halogen. The quinoxaline starting material may be a mixture of the 6- and 7- methoxy compounds produced by reacting 5- methoxy-o-phenylenediamine with either chloroacetic acid in the presence of a base, the product being then oxidized, or the ethyl ester of glycoxylic acid ethyl semi-acetal. The Compounds of Formula I have insecticidal, acaricidal and fungicidal properties, and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1527609-A (GB)
Title: Method and apparatus for manufacturing a concrete ridge tile
IPC: E04D1/30
Filed: 1975-10-07
Abstract: 1527609 Ridge tiles REDLAND ROOF TILES Ltd 7 Oct 1975 [8 Oct 1974] 41063/75 Heading E1B [Also in Division B5] A concrete ridge tile 1 is grooved 6 at one end for engagement by an internal web 7 on the adjacent, overlying tile. As described, a roof truss 9 (Figure 2) supports battens 10 and a ridge board 1.3 The gap between ribbed particles 11/14 is covered by overlapping ridge tiles 1 held in place by nails 15 passing through a tile aperture. The webs 7 of the ridge tiles seat in recesses in the adjacent grooves 6, while the depending limbs 2, 3 of the ridge tiles include apertures 8 for receiving the ribs 14 of the particles. Moulding of the ridge tiles is described (see Divisions B4-B5).
Patent GB-1154794-A (GB)
Title: Improvements in or relating to Crystal Supports for X-ray Spectrometers
IPC: G21K1/06
Filed: 1966-09-15
Abstract: 1,154,794. Crystal holder and changer. SIEMENS A.G. 15 Sept., 1966 [16 Sept., 1965], No. 41356/66. Heading H5R. A support for the analysing crystal of an X-ray spectrometer in which the crystal 1 firmly held e.g. by cement 2 in a first mounting 3 is adjustably inserted into a second mounting 4 in such a way that those of its faces which reflect X-rays occupy a specific position relative to the base 8 of the second mounting, the base of the second mounting being adapted to fit on a supporting surface in the spectrometer occupying a predetermined position relative to the specimen and the detectors of the spectrometer. Preferably, the crystal is held in a specific position in the second mounting by means of adjusting screws 5 and counter springs 6, the crystal being bonded into the first mounting in a manner known per se. Preferably the base member of the second mounting and/or the supporting surface in the spectrometer is/are provided with magnets whilst the other surface is a magnetically active material. The magnets may project from the plane of the supporting surface, or the base member, and may be held there by adjusting screws. The crystal holder may be assembled into a crystal changer which comprises several supporting surfaces in a drum-like structural assembly, a rotary drive being associated with the drum so mounted so as to rotate about its cylindrical axis. Where the detectors of the spectrometer are pivotable about an axis, this axis is approximately perpendicular to the drum axis. Lateral stops and abutments for positioning the base member of the second mounting are preferably associated with the supporting surfaces. Cams may be provided on the drum to actuate contacts which operate a circuit usable to monitor the rotation position of the drum. A particular embodiment of a drum crystal changer carrying four crystal plates is described in the Specification in relation to Figs. 3 and 4 (not shown).
Patent GB-1381131-A (GB)
Title: Process and apparatus for sorting particulate materials
IPC: B07B1/28
Filed: 1972-09-07
Abstract: 1381131 Size-sorting of particulate materials HEVES MEGYEI TANACSI EPITOIPARI VALLALAT 7 Sept 1972 41629/72 Heading B2H In a process for sorting adherent and/or agglomerated, particulate material according to particle size in an apparatus comprising a casing in which is mounted at least one sorting surface formed solely by laterally-extending strings, wires or rods and inclined at a predetermined angle to the horizontal from a material inlet towards outlet means for the removal of the separated material fractions and provided, betwen the strings, wires or rods, with openings which are arranged in a predetermined configuration and which are of a minimum size 1.1-3.0 times larger than the maximum particle size of the particulate material, at least one sorting surface is selected from a set of different sorting surfaces and mounted in the casing, and the material is fed on to the sorting surface(s) with a component of movement in the plane of the or each sorting surface, the angle of inclination of the sorting surface(s) and the configuration and size of the openings being each so chosen that the material collides with the edges of the openings with a force sufficient to prevent blockage threof, and is sorted into a fraction of relatively large particle size remaining above the sorting surface(s) and a fraction of relatively small particle size passing through the sorting surface(s). In Fig. 4, mutually superposed and parallel planar screening plates 8-13 formed of spaced parallel strings are guided in grooves formed in the internal side walls of an obliquely extending closed housing 14 so that they can be easily removed and replaced. The material to be sorted is fed through a hopper 15 to the inner end of the uppermost screening plate 13. The spacing between the strings decreases from the uppermost to the lowermost plate. The coarse fraction is separated in several steps above the plate 8 and leaves on a guide plate 16 in the direction of the arrow B. The fine fraction falls through the plate 8 into a chute 17 in the direction of the arrow C. The housing 14 is resiliently suspended by coil springs 18a, 18b and a rubber strap 19. Alternatively, rubber springs may be used. An unbalanced mass vibrator 20 secured to the housing may be operated to increase the separation efficiency. Instead of being arranged in parallel, the screening plates may be at a different angle to each other in a fan-like manner as at 21 to 25 in Fig. 5. In each plate, the string spacing may be increased or decreased along the direction of material advance. The screening plate may be formed with an upwardly concave or convex surface. The strings may be positioned between two lateral frame members and may be tensioned by means of tensioning screws on the outside of one of the frame members or by moving the frame members apart by means of a screw spindle. The process may be applied for sorting or washing coal, gravel, sand or ores.
Patent GB-1247873-A (GB)
Title: Composite ammunition rounds for firing in an open chamber breech mechanism
Inventor: DARDICK DAVID
IPC: F42B5/05
Filed: 1968-09-03
Abstract: 1,247,873. Ammunition rounds; weapons. TRW Inc. 3 Sept., 1968 [1 Sept., 1967], No. 41912/68. Headings F3A and F3C. A composite ammunition round for firing in an open chamber breech mechanism 100, Fig. 6, comprises a jacket 200, Figs. 10 and 11, having as cross-section an equilateral curvilinear triangle with convex sides and a cartridge in the jacket comprising a case 204 for the propellant and a projectile 208, the jacket being of a material, e.g. plastics, which is yieldable under internal propellant gas pressure to seal the breech mechanism on firing and non-combustible under conditions prevailing in the breech mechanism on firing. The cartridge 204 can be surrounded by additional propellant 206. For use in recoilless weapons, the jacket is formed with side openings and the cartridge case is perforated or frangible so as to permit the escape of gas through Venturis 124 and 122, Fig. 6, of the weapon. The round is fed through the weapon by a rotatable cylinder 108 having a correspondingly shaped open firing chamber which, in the firing position, is closed by a strap.
Patent GB-1072853-A (GB)
Title: Improvements in transducer excitation circuits
Inventor: KNIGHT DOUGLAS FRANK
IPC: G01D5/20
Filed: 1963-10-24
Abstract: 1,072,853. Measuring displacement electrically. W. & T. AVERY Ltd. Oct. 23, 1964 [Oct. 24, 1963], No. 41931/63. Heading G1N. The primary winding 2, of a variable reluctance transducer, 1, (e.g. a differential transformer) is connected to a reference voltage supply 5, 5 via a T-network comprising two inductances 6, 8, two temperature sensitive resistors 7, 9, and a variable resistor 13, so that the current in the primary is substantially in quadrature to the reference voltage. The T-network alternatively may consist of resistors and capacitors, in which case the variable resistor is connected between, and in series with, two resistors, the three resistors connecting one end of the primary to the supply; and a capacitor is connected from each end of the variable resistor to the neutral return from the primary winding to the reference supply voltage. The variable resistor enables the phase relation between the said current and the reference voltage to be adjusted, while the temperature sensitive resistors compensate for thermal changes in the resistance.