baber/WOPTO huggingface dataset:
Patent GB-1503399-A (GB)
Title: Decoder apparatus applicable to matrix 4-channel systems of different types
IPC: H04S3/02
Filed: 1975-11-04
Abstract: 1503399 Quadraphonic decoders SANSUI ELECTRIC CO Ltd 4 Nov 1975 [7 Nov 1974] 45799/75 Heading H4R In a matrix type quadraphonic decoder usable in systems of different types, e.g. on both the regular matrix and the SQ systems, in which the decoder includes at least two gain controlled amplifiers whose gains are varied, to vary the mixing ratio of the signals, when switching between the systems, the gain controlling circuit includes at least four FET's formed in a semi-conductor chip two of the FET's being connected across a D.C. supply so that predetermined direct currents of different value flow through the source drain paths, the other two FET's are A.C. coupled as gain controlling elements in the respective gain controlled amplifiers so that the gains of the amplifiers depend on the source drain resistances of the third and fourth FET's, which are selectively coupled to bias voltages derived from the first and second FET's. As described with respect to Fig. I which is an arrangement according to Specification 1,417,873 LT and RT signals coded according to the Regular Matrix (QS: Registered Trade Mark) or SQ system can be decoded by switching S1, S2 and S3 to the appropriate position which provides appropriate connections in the matrix and a change of gain of the amplifiers 16 and 22 to be 0À4 for the RM system and 1À0 for the SQ system. Fig. 5 shows the gain control amplifiers 16 and 22 in which the gain is controlled by varying the source drain impedance of transistors 162, and 222 connected to provide negative feedback in the emitter circuits of amplifier transistors 161 and 221. The source potential of the FET's 162 and 222 is controlled by the source potential of either FET 271 in the RM condition or FET 272 in the SQ condition, the FET's 271 and 272 each drawing a respective controlled current determined primarily by the source resistances R 1 and R2. The gates of the gain controlling FET's 162 and 222 can be fed with potentials Ef and Eb, which are derived by comparison of the signals LT and RT, to provide improved separation between the channels.
Patent GB-1122298-A (GB)
Title: Multilayer material for colour photography
Inventor: PIETRZOK HUBERTUS
IPC: G03C1/83
Filed: 1966-10-14
Abstract: Dyes of formula X-N=N-A-N=N-X in which A and X together represent <FORM:1122298/C4-C5/1> <FORM:1122298/C4-C5/2> <FORM:1122298/C4-C5/3> <FORM:1122298/C4-C5/4> and R is H or an aromatic or aliphatic carboxylic or sulphonic acid acyl radical, M is H, an alkali metal atom or an ammonium group, y = O,S or -NH- and n is 0 or 1 are described. The dyes are prepared by coupling acylated or non-acylated 1-amino-8-naphthol-3,6-disulphonic acid with diazotized H-acid or tetrazotized aromatic diamino-disulphonic acids.  U.V. spectra are given of compounds in which R is acetyl or p-toluene sulphonyl.
Patent GB-1320810-A (GB)
Title: Shutter for a motion-picture projector
IPC: G03B9/10
Filed: 1971-10-04
Abstract: 1320810 Cine apparatus ELMO CO Ltd 4 Oct 1971 [3 Oct 1970] 46117/70 Heading G2E A rotary shutter has a number of blades 60 pivotally connected to a disc 59, the blades being held by torsion springs 64 in a folded condition when the shutter is stationary, but these open out under the action of centrifugal force, when the shutter rotated to assume the shape shown. The blades carry ears 61, 61' and the disc ears 62, 62' which are connected by shafts 63 to form the pivotal connections. Stops 67 on the disc 59 limit the unfolding movement of the blades 60. The contacting surfaces of the blades and/or the stops may be provided with an elastic member. Such an expanding shutter is intended for use in a self threading, cartridge receiving cine projector such as that disclosed in Specification 1319915, the retracted blades facilitating the movement of a threading arm and a retractable pressure plate of the picture gate.
Patent GB-1522144-A (GB)
Title: Crimping and/or cutting device
IPC: B26B17/02
Filed: 1975-10-24
Abstract: 1522144 Crimping pliers HOLDEMA Ltd 24 Oct 1975 [25 Oct 1974] 46168/74 Heading B4W [Also in Division H2] A pair of crimping pliers comprises two jaws, 12, 22 pivoted together, the handle 21 of one: of which is pivoted to the jaw and connected to the other by an intermediate link 30, there being a stroke-completion device comprising a ratchet 33a and pawl, the pivot pin 31 at one end of the intermediate link being formed as a cam pin 51, Fig. 8, for the purposes of adjustment, the other pivot comprising a pin and slot connection. Various shapes of the crimping dies 40, 41 and 42 are described, and the tool is provided with a cable-stripping notch 63 and cutters 60, Fig. 10, to the side of one of which is attached a rubber member 62, the other having a resilient member 61.
Patent GB-1518820-A (GB)
Title: Ball-milling method and apparatus
IPC: B02C17/18
Filed: 1975-11-07
Abstract: 1518820 Ball mills ALCAN RESEARCH & DEVELOPMENT Ltd 7 Nov 1975 [20 Nov 1974] 46260/75 Heading B2A  A cylindrical rotatable ball mill which may include lifters has a feed opening at the centre of one end, a discharge opening at the centre of the other end, a horizontal duct 32, Fig. 1, connecting the discharge opening with a frusto-conical sieve 38, Fig. 2, surrounded by a frusto-conical funnel-like receptacle 36 radially spaced from the sieve, the duct sieve and receptacle being mounted coaxially with the container 10. Discharge is assisted by a screw 42. A second embodiment has a central discharge with a outlet 74, Fig. 4 able to house a sieve. The apparatus is used for crushing metallic particles to prepare metallic pigments in the presence of a lubricant and solvent, the mill having a initial ball charge. The balls are recirculated after the sieving operation; and the feed of mixture of balls material solvent and lubricant is continuous.
Patent GB-1486286-A (GB)
Title: Removing noxious gases from water
IPC: B01J10/00
Filed: 1974-10-25
Abstract: 1486286 Degassing water S R KENNEDY 25 Oct 1974 [26 Dec 1973] 46316/74 Heading B1M A method of removing noxious gases e.g. ammonium or sulphur dioxide from water reclaimed from sewage comprises introducing the water near the top of a closed structure, converting the water into a shower by dispersion through perforations, further scattering the water in the shower by passing at least a portion through further perforations and cascading any balance as streams without adding heat to the water, replacing noxious gases in the water with air by drawing a countercurrent of air at substantially ambient temperature through and in intimate contact with the showering and scattering water, entraining the noxious gases in the countercurrent of air removing the air and entrained noxious gases near the top of the structure and removing purified water near the bottom of the structure.
Patent GB-1451785-A (GB)
Title: Superdonducting alloys
IPC: C22C14/00
Filed: 1973-10-05
Abstract: 1451785 Super-conducting alloys KOBE STEEL Ltd 5 Oct 1973 [23 Jan 1973] 46537/73 Heading C7A Super-conducting alloy of composition:- The alloy may be prepared by tungsten arc melting a sponge, powder, particle or flake of the above composition into a water cooled copper mould using an inert gas atmosphere and the ingot formed vacuum sealed in a steel tube, hot forged, scalped to remove the steel, wrapped in titanium foil, vacuum annealed, cold swaged and drawn into wire form which may be solution treated in vacuum at 1,000C for 5 hours or heat-treated at 400C for 10 hours. The alloy may be used in super-conducting transformers, D.C. dynamos and magnetohydrodynamic generators.
Patent GB-1328738-A (GB)
Title: Helically wound supporting structures and methods of making them
IPC: E04C5/06
Filed: 1971-10-08
Abstract: 1328738 Making reinforcements B GEORGII 8 Oct 1971 [16 Oct 1970] 47005/71 Heading B3A [Also in Division E1] A structure comprises longitudinal rods 1, 2, 3, 4 and transverse straight rods 5, 6, 7, 8 interconnecting them wherein the transverse rods are formed by two systems of helically wound wires, each of the systems comprising at least two wires of the same shape, the wires 7, 8 of one system being wound in one direction inside the longitudinal rods on a template and the wires 5, 6 of the other system being wound in the opposite direction outside the longitudinal rods. Those wires wound inside the longitudinal rods are wound first at a station 27 and then the structure moves to a second station 28 where the outer wires are wound. Batches of longitudinal rods may be continuously welded and fed from stations 26. The number of wound wires may be 2, 3, 5 or 7. Some of the longitudinal rods may be prestressed and the rods and wires of steel or aluminium may be welded at their intersections. The structure may be rectangular or triangular in section and suitable lengths cut after completion.
Patent GB-1446232-A (GB)
Title: Developing processes and to apparatus therefor
IPC: G03G15/10
Filed: 1973-10-09
Abstract: 1446232 Developing electrostatic images RICOH KK 9 Oct 1973 [21 Oct 1972] 47011/73 Heading G2H Electrostatic latent images on sheets 1 are developed by a liquid which floods through apertures 8a in plate 8 and is drawn in the direction of movement of the sheets by roller 6. The roller 6 may be located partly within tank 5, and be cleaned by a brush 18 within the tank. Preferably the roller is helically grooved, and is rotated at a peripheral speed greater than that at which the sheets are displaced through the apparatus. Used developer may be recirculated for reuse.
Patent GB-1136789-A (GB)
Title: Power supply circuit for an x-ray generator
IPC: H05G1/08
Filed: 1966-10-20
Abstract: 1,136,789. Switching circuits. HITACHI Ltd. 20 Oct., 1966 [27 April, 1966], No. 47042/66. Heading H3T. [Also in Divisions G3 and H2] A supply system for an X-ray tube 5 comprises an arrangement as shown in Fig. 2, in which a controlled rectifier SCR 1  is fired and cut off (by firing of controlled rectifier SCR 2 ) so that a selected portion of each positive halfwave of a mains A.C. source 6 is applied to a step-up transformer 4, the phase angles of firing and cut-off being such that only the higher voltage portions symmetrical about the peak value are used, Fig. 5 (not shown), to produce a pulse of substantially rectangular waveform. The trigger circuit for the rectifiers SCR 1 , SCR 2  is shown in Fig. 3 and comprises a mains A.C. source E 0 , a phase-shifting and rectifying circuit 13, a pulse-generating circuit 14, a delay circuit 15, a phase-inverting circuit 16 and a further pulse generating circuit 17. The firing pulse for rectifier SCR 1  is obtained from terminal b and is derived from the positive component of the potential at point a, which potential is the sum of the negative full-wave rectified voltage from the rectifier 21 and the charging voltage across the capacitor 24. A known one-shot multivibrator delay circuit 15 emits from terminal d a rectangular wave (Ed), Fig. 4 (not shown), whenever a positive pulse is applied from the rectifier 25, and the phase of this wave is inverted by a transistor 28. Finally, the inverted wave is transformed by the pulse-generating circuit 17 to produce at terminal g a firing pulse for the rectifier SCR 2  delayed by a definite time interval. The phase shifting circuit 13 may be manually or automatically adjusted with variation in the X- ray tube current, to maintain the desired rectangular waveform by variation of the phase of the A.C. input to the trigger circuit and hence the firing instants of the controlled rectifiers.
Patent GB-1075453-A (GB)
Title: Improvements in or relating to telephone station apparatus
Inventor: HARROLD ARTHUR EDWARD
IPC: H04M1/278
Filed: 1964-06-24
Abstract: 1,075,453. Impulse diallers. GENERAL ELECTRIC CO. Ltd. July 19, 1965 [June 24, 1964], No. 47179/66. Divided out of 1,075,451. Heading H4K. A repertory impulse dialler has a magazine of punched or magnetic cards, the digit values on which are successively sensed as the card is extracted and determine the angular movement of an electrically driven impulse mechanism. The description is similar to Specification No. 1,075,451 but the claims relate to the impulse mechanism.
Patent GB-1056705-A (GB)
Title: Thermal fuse for use with a pressurized vessel
IPC: F16K17/14
Filed: 1964-11-19
Abstract: 1,056,705. Pressure-relieving devices. BENDIX CORPORATION. Nov. 19, 1964 [Nov. 22, 1963], No. 47219/64. Heading F2V. A thermal safety plug, e.g. for an aircraft wheel, comprises a fusible disc 20 (Figure not shown), which when subjected to an unsafe high temperature loses its structural properties and allows a plug (26) to be blown out through a bore (16). The plug (26) is sealed in a bore (14) by an O-ring (32) and may have a portion (30) locating in a bore (24) in the disc (20), The plug (26) is preferably made of a low-density material, to reduce the effect of centrifugal force, and the spacing between the end of the portion (30) and the bore (16) gives an indication of the degree of creep of the fusible disc (20).
Patent GB-1399532-A (GB)
Title: Hinges
IPC: E05D5/06
Filed: 1972-10-13
Abstract: 1399532 Hinges FERMOD 13 Oct 1972 [29 Oct 1971] 47262/72 Heading E2F A hinge suitable for welding to the rear pillar of a lorry, comprises a hinge pin 3 mounted on a support 1 and a hinge part 8 rotatably mounted on the pin, wherein the support 1 comprises at least one substantially 8-shaped metal member defining two adjacent portions, one portion 2 for carrying the pin and the other 4 for fixing the member to a door pillar, the portion 4 having a cross-section substantially in the shape of a triangle two corners of which are rounded. The support 1 may be in the form of a folded strip, or alternately, may be a section member cut to the required length. The hinge-pin supporting portion 2 may be provided with a lubricating bush (32), Fig 4 (not shown), and the hinge is capable of being dismantled by the removal of a nut (15), Fig 1 (not shown), secured at the end of the hinge pin 3. In an alternative embodiment, Figure 3 (not shown), the hinge is of the knuckle type and possesses two 8-shaped members (21) for welding to the door pillar.
Patent GB-1317693-A (GB)
Title: Digital sine/cosine generator
IPC: G06F1/035
Filed: 1971-10-11
Abstract: 1317693 Selective signalling HOLLANDSE SIGNAALAPPARATEN NV 11 Oct 1971 [19 Oct 1970] 47303/71 Heading G4H In a digital sine/cosine generator, the two most significant bits in an angle register (which specify the quadrant), together with a signal indicating whether the sine or cosine is required, control whether a memory holding sine values is addressed using the rest of the bits in the angle register in true or inverted form, the sine value read from the memory being placed in an output register, a sign bit also being placed in the output register. The sign bit is also derived (by logic) from the two most significant bits (representing 180, 90 degrees) of the angle and the signal indicating whether sine or cosine is required, and is also used to control whether the memory output is placed in the output register (which is a parallel adder) in true or inverted form, and to add a correction of 0 or 1 into the least significant stage of the output register. A second embodiment differs from the first in providing the most significant bit of those supplied from the memory in the first embodiment, from logic instead, the logic being responsive to the next bit (now the highest order bit from the memory) and the second and third most significant (representing 90, 45 degrees) bits from the angle register and the signal indicating whether the sine or cosine is required, and the sign bit. A third embodiment differs from the second in that the memory has a first and second part, and of the bits used for addressing the memory, all are used for addressing the second part and all but the two least significant are used for addressing the first part. The output of the first part is used like the output of the memory in the second embodiment, but since it contains one less bit, the lowest order bit is taken to be 1 or 0 according to the sign. The output of the second part is a 2-bit fine value to be added to the coarse value thus provided by the first part, and this is done in the output register, the 2-bit value being supplied to the low order end of the output register in true or inverted form with a 0 or 1 appended, depending on the sign. Correction for small angles is performed using a 3-bit parallel adder in the path used by the inverted value from the second part, and by control of the lowest order output register stage, in response to the sign bit and bits from the angle register.
Patent GB-1300784-A (GB)
Title: Waste-heat-recovering means for a cupola
Inventor: FORMENTI RICCARDO
IPC: F27B1/18
Filed: 1970-10-06
Abstract: 1300784 Cupola shaft furnaces R FORMENTI 6 Oct 1970 [8 Oct 1969] 47356/70 Heading F4B A dust extraction device for use on a cupola shaft furnace 22, comprises an inner flue duct 2 closed by a diaphragm 3, an opening 7 in the flue duct 2, a spiral baffle arrangement 4, 5, 6 through which the flue gases pass, a discharge port 8 for ashes and grit separated by the cyclone configuration of the baffles, and a venting chamber 50. The chamber 50 has a suction port 10 which communicates through a duct 14 with a blower 35. The duct 14 has a damper 19 for adjusting the fraction of flue gases drawn through the port 10 for admixing with cold air drawn from the atmosphere through the intake 11.
Patent GB-1529949-A (GB)
Title: Endless loop tape cassette
IPC: G11B23/07
Filed: 1975-11-18
Abstract: 1529949 Tape cartridges MICRO COMMUNICATIONS CORP 18 Nov 1975 [14 April 1975] 47426/75 Heading B8M A cartridge has a flanged hub 18, 17 having a hole 37 therethrough which engages a complementary-shaped post 16 on the base 11 of the cartridge, a shoulder 40 formed on a guide 23 and being raised above the flange 18, and an opening 30 for the translation of the tape 24 by a drive means from the inner convolution of the coil 24 to the outer convolution after being raised by the shoulder 40 wherein, the hub 17 has, in order to avoid binding of the tape coil, a slot defined by an undercut arc portion 35 and an inclined portion 38 whereby the tape enters the slot at the end of the arc portion 35 and exits from the portion 38 during translation. The cassette, which is made of a low friction material such as polystyrene, includes a snap-fit cover. The flange 18 is thicker than the depth of the recess in which it is received in the base 11. The cover includes a recessed channel to provide a clearance for the tape and is ultrasonically welded to the base 11. The base has a one-way channel for insertion of the cassette in one orientation only. The tape 24 includes a pair of reflective areas, in the vicinity of a splice, which co-operate with photosensors in the record/playback device in which the cartridge is used to sense the end and the beginning of the tape.
Patent GB-1442341-A (GB)
Title: Piston diesel engine of the direct injection type
IPC: F02B3/06
Filed: 1973-10-11
Abstract: 1442341 Fuel injection IC engines AUTOMOBILES M BERLIET 11 Oct 1973 [25 Oct 1972] 47454/73 Heading F1B The injector 4 in the cylinder head 3 is offset from the axis 10 of the combustion chamber which is in turn offset from the piston axis 6. The injector holes have different diameters and angular orientations which are calculated such that at the fuel supply pressure the end of each jet remote from the corresponding hole just reaches the wall of the combustion chamber to provide the same mixture richness at the end of each jet.
Patent GB-1326845-A (GB)
Title: Process for colouring and imparting water-oil- and soil- repellency to substrates
IPC: D06P3/32
Filed: 1971-10-14
Abstract: 1326845 Dyeing and imparting water-, oil- and soil-repellancy FABRIEK VAN CHEMISCHE PRODUCTEN VONDELINGENPLATT NV 14 Oct 1971 [21 Oct 1970] 47908/71 Heading D1B Substrates especially leather and non-wovencellulose are treated with a solution containing a) a dye or dyes suitable for the substrate, b) one or more compounds imparting water-, oil-, and soil-repellency to the substrate in an organic solvent or organic solvent mixture in which the compounds a) and b) are soluble, the solutions preferably being applied by spraying. Basic and acid dyes are used, perfluoroalkyl group containing compounds being used as component b). Preferred solvents boil at 60 to 200‹C, e.g. ethanediolmonomethylether, tri- and tetrachloroethylene, dimethyl formamide, 1, 2 ethanediol and mixtures thereof.
Patent GB-1516109-A (GB)
Title: Machines for positive fluid displacement
IPC: F03C2/30
Filed: 1975-11-25
Abstract: 1516109 Rotary positive displacement fluid devices G SVENSSON 25 Nov 1975 [26 Nov 1974] 48379/75 Heading F1F A rotary fluid machine comprises a stator 1 and rotor 2 defining an annular working chamber 3, the rotor having vanes 5 and the stator having abutments 4, the vanes and abutments each comprising a plurality of teeth 8 which are resiliently biased into sealing contact with the adjacent teeth, but deform to allow the teeth on the vanes to pass between the teeth on the abutments. Each tooth 8 comprises a pair of curved plates 13 secured along one edge 12 and abutting (or secured) at the opposite edges 15. A plate 9 may be located between a pair of plates to provide a mounting for securing the tooth in a slot in a mounting bar. The plates (13') may be rectangular, and secured together at each end, and may then be apertured (21) to allow pressure fluid to enter the space between the plates to provide pressure balancing.
Patent GB-1483634-A (GB)
Title: Insulation
IPC: F16L59/02
Filed: 1975-06-13
Abstract: 1483634 Insulation for pipes NON-SAG SEATING CO Ltd 13 June 1975 [8 Nov 1974 17 Dec 1974] 48483/74 and 54549/74 Heading F2P [Also in Division B3] An insulation for a pipe or other elongate article comprises a sleeve of preformed insulating material having a longitudinally extending slit to enable the sleeve to be located around a pipe and two radially projecting, longitudinally extending projections, one disposed on each side of the slot, to be secured one to the other to maintain the sleeve in position around the pipe.  The sleeve may be of foamed polyurethane, polyethylene or polystyrene and may be substantially cylindrical or alternatively may have an outer surface of substantially polygonal cross-section having 4, 5, 6, 7, 8, 9 or more sides which are flat, or alternately flat and radiused around the periphery. The lagging may be secured by clips 13 passing through the projections. A method of forming such insulation comprises removing a central portion of a section of lagging having a square cross-section to accommodate the pipe, forming a diagonal slit towards one corner of the substantially square cross-section and shaping the external surface of the insulation by grinding with a shaped abrasive wheel to produce the projections and the desired cross-section. The lagging of Fig. 4, having an alternately flat and radiused outer surface, is produced by grinding away corners 38 of the square crosssection length of lagging with concave grinding wheels 37 while the projections 39, 39<SP>1</SP>, are formed by grinding wheel 33 having a generally H-shaped diametral cross-section while the slit 31 is simultaneously formed by circular cutter 53.