baber/WOPTO huggingface dataset:
Patent GB-990928-A (GB)
Title: Improvements relating to apparatus for producing signals indicative of relative position
Inventor: MYNALL DENNIS JAMES
IPC: G05D3/20
Filed: 1962-11-23
Abstract: 990,928. Measuring displacement. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 8, 1963 [Nov. 23, 1962], No. 44455/62. Addition to 953,449. Heading G1N. In a displacement measuring device, basically similar to that disclosed in the parent Specification, comprising a conductive toothed profile 1 (Fig. 1) capacitively coupled to a series of conductive strips S 1 , S 2  &c., which move relatively to the teeth and extend transversely of this direction of movement, the distance between two adjacent strips is an integral number of tooth pitches plus or minus a distance equal to one tooth pitch divided by the number of sets of strips (i.e. a vernier arrangement) A "set of strips" comprises all those strips which bear a similar positional relationship to respective teeth, e.g. S 1 , S 5  &c., and in Fig. 1 there are four sets. If m is the number of tooth pitches between two successive strips of the same set, and n is the number of sets, then the arrangement of teeth and strips may be expressed in the form: m = pn  1 where p is any integer.
Patent GB-928171-A (GB)
Title: Improvements in or relating to morphinan and isomorphinan derivatives
Filed: 1960-12-29
Abstract: The invention comprises a process for the elimination of the 4-hydroxy group from a compound containing a D- or L-morphinan or D- or L-isomorphinan skeleton substituted at the 3-position by a C1-5 alkoxy group and at the 4-position by a hydroxy group, by etherifying the compound with an aryl (including aromatic heterocyclic) halide or a C1-5 alkyl-, C1-5 alkoxy- or nitro-substituted aryl halide, and then eliminating the aryloxy group by treatment with an alkali or alkaline-earth metal in the presence of liquid ammonia; and also such a process in which there is or are interposed between the two steps one or more further reactions, viz. a Clemmensen reduction, a catalytic reduction and/or a ketalization.  Preferred starting materials are the various isomers represented by the general formula <FORM:0928171/IV(a)/1> wherein R represents a C1-5 alkyl group and R1 a hydrogen atom, a C1-5 alkyl, C7-10 aralkyl or C1-10 acyl group, or a cyano group (eliminated in the course of the reaction), and wherein ring C may contain one or two double bonds and/or one or more substituents (e.g. oxo, hydroxy, C1-5 alkoxy, C1-5 alkyl or ketal groups).  Ketals obtained by the process of the invention may be subsequently hydrolysed to ketones, and reference is also made to the reduction of D-3-methoxy-N-phenylacetylmorphinan to D-3-methoxy-N-phenethylmorphinan.  The invention further comprises certain new compounds obtainable by the foregoing processes.  They are useful as central nervous depressants or as intermediates for other drugs.  Reference has been directed by the Comptroller to Specification 713,146.
Patent GB-1479888-A (GB)
Title: Closure members for flow control valves
IPC: F16K1/22
Filed: 1973-09-26
Abstract: 1479888 Valves M STEAD and G HEAP 6 Sept 1974 [26 Sept 1973] 45085/73 Heading F2V A pivoted closure member 1 for a valve comprises a substantially disc-shaped portion 3 and two flow modifying portions 7 in the form of quarter-spheres. Openings are provided in the spherical portions in the form of holes or slots. Flow through the openings may be silenced by the provision of baffles or silencing material or by designing the openings to give tortuous paths.
Patent GB-1151350-A (GB)
Title: Photographic Exposure Meter
Inventor: SHIMOMURA JUN
IPC: G01J1/42
Filed: 1966-10-10
Abstract: 1,151,350. Exposure meters. NIPPON KOGAKU K.K. Oct. 10, 1966, No. 45113/66. Heading G2A. A photographic exposure meter comprises a light receiving surface on which an image of the scene to be photographed is projected, the surface comprising two or more photo-electric elements A, B, disposed at different positions on the surface and connected in series.
Patent GB-1521607-A (GB)
Title: Three-dimensional jig-saw puzzle
IPC: A63F9/12
Filed: 1976-10-29
Abstract: 1521607 Puzzle STALLERGREEN Ltd and PAPERPLAY Ltd 29 Oct 1976 45115/76 Heading A6H  A three-dimensional jig-saw puzzle has at least two planar laminates of rigid material slotted to intersect one another, one being formed of separable parts connected by interengaging formations.  A slotted member 13, Fig. 2, is formed of parts 14, Fig. 1, and is engaged by slotted cross-member 11 formed of parts 15, and two single parts 10, 12. One side of each member is striped or carries a picture to assist matching. In a modification, the parts 14, 15, themselves are also jig-saw pieces.
Patent GB-1337465-A (GB)
Title: Target for a picture pick-up tube
IPC: H01L21/02
Filed: 1971-09-28
Abstract: 1337465 Coating with glass MATSUSHITA ELECTRONICS CORP 28 Sept 1971 [29 Sept 1970] 45147/71 Heading C1M [Also in Division H1] A target for an image pick-up tube comprising a silicon substrate 31, Fig. 3, coated with a layer of silicon dioxide 34A provided with apertures through which P-type areas 33 are exposed is coated with a layer of lead silicate glass 34B and 34E formed by the combination of lead monoxide with the silicon or silicon dioxide surface. The lead silicate glass layer should have a specific resistance of 10<SP>8</SP>-10<SP>12</SP> ohm-cm. and a thickness of 0À1-0À5 microns. In manufacture the silicon wafer is provided with the oxide layer and the P-type areas in known manner and lead is vapour deposited over this surface; heating at 450-650 C. in an oxidizing atmosphere converts the lead to lead monoxide which reacts with the surface to form lead silicate glass. Surplus lead monoxide remaining after the above process is removed by washing in acetic acid. As an alternative the lead monoxide layer can be formed directly by vapour deposition. The lead glass film 34E over the junction areas may be removed since it adds resistance to the path of the electron beam.
Patent GB-1446059-A (GB)
Title: Methods of and devices for controlling exhaust gas composition
IPC: F02D41/34
Filed: 1973-09-27
Abstract: 1446059 Automatic control of IC engine exhaust composition ROBERT BOSCH GmbH 27 Sept 1973 [28 Sept 1973] 45204/73 Heading G3R A device for controlling the composition of the exhaust of an internal combustion engine includes a regulator controlling the fuel-air ratio to the engine in accordance with a measured exhaust composition, the control range of the regulator being adjusted if the regulator output passes through a given threshold value. In the embodiment, a transistor switching circuit varies the duration of fuel injection to the engine according to the engine temperature as sensed by an NTC resistor the air-flow to the engine and the oxygen content of the engine exhaust. The output of the oxygen sensor is amplified, integrated in a direction according to whether the fuel-air ratio is above or below a given value, and fed as a signal 82 to the regulator, whose normal control range is 80 to 81. If under certain engine conditions e.g. when hot starting the engine, the integration for example exceeds a given value 88 the control range is shifted to between 80 and 84. When it drops below 85 the range is returned to its normal value. Similarly, if the integration falls below 87 the range may be shifted downwards. The device is described in detail with reference to Figs. 1 to 5 (not shown).
Patent GB-1437522-A (GB)
Title: Method of and apparatus for heat-treating material involving heat recuperation from material cooling and auxiliary heating at startup
IPC: C22B1/24
Filed: 1973-09-28
Abstract: 1437522 Calcining apparatus ALLIS-CHALMERS CORP 28 Sept 1973 [4 Oct 1972] 45483/73 Heading F4B Apparatus generally similar to that disclosed in Specification 1,318,016 (see Divisions F3-F4) for the heat treatment of pelletized material, e.g. ores or limestone has a conduit 25 extending from a second stage cooler chamber 22 and incorporating a heater 26 with burner 26a to join a second conduit 30 extending from the bottom of a preheating chamber 5 to the top of a preconditioning or drying chamber 4, and a third conduit 43 from the bottom of chamber 4 to a stack 46 via a fan 47. Conduit 30 incorporates valve controlled plenum chambers 31 receiving hot gases which have passed downwardly through pellets on an endless conveyer 1, a valve controlled air inlet duct 38, a cyclone separator 36 and a fan 35. An auxiliary stack 40 closable by a cap 41 provided over the preheating chamber is used in starting up the apparatus. Cooling air is supplied to the first and second stage cooler chambers 21, 22 by fans 12 and 13, air from chamber 21 entering the rotary furnace 8 to mix with hot gases from the burner 28. The burner 26a enables hot gases to reach the chamber 4 before fired material reaches the second stage cooler chamber 22. In a modification (Fig. 2) an additional conduit (52) extends from the top of chamber 5 to enter conduit 30 upstream of conduit 25. Another modification has two preconditioning chambers (4a and 4b) the latter being supplied at the top with gases from conduit 30 and the former at the bottom with gases from conduit 25 each drying chamber having its own connection to a stack. Branches (25a) from conduit 25 and (52a) from conduit (52) extend to conduit 30. In all the embodiments the stacks incorporate dust cleaners, e.g. electrostatic precipitators, cyclones, gas permeable bags or wet scrubbers.
Patent GB-926403-A (GB)
Title: A method of regulating the operating current in devices having thermoelectric units
IPC: H01L35/00
Filed: 1961-12-20
Abstract: 926,403. Switching systems for thermoelectric coolers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Dec. 20, 1961 [Dec. 23, 1960], No. 45608/61. Drawings to Specification. Class 38 (4). In a method of regulating the operating current in thermoelectric cooling units transferring heat from a first to a second reservoir by the peltier effect, the units are operated normally at a current value which gives maximum efficiency but until a determined temperature of one, or a determined temperature difference between the two reservoirs is reached, the units are operated at a higher current, which may be that at which the unit gives the maximum cooling effect. A temperature-responsive switch may be arranged to terminate the current at another determined temperature. The current may be supplied through a rectifier and transformer having two primary windings connectible in series or parallel by a temperatureresponsive switch.
Patent GB-958006-A (GB)
Title: Cable clip
IPC: F16L3/10
Filed: 1962-12-03
Abstract: 958,006. Cable clips. A. FISCHER. Dec. 3, 1962 [Dec. 11, 1961], No. 45650/62. Heading H2C. [Also in Division E2] A synthetic plastic clip designed to accommodate cables or pipes of differing sizes has resilient tongues 7 and 8 which are bent over by the cable when a cap member 1 is snapped into position so that they hold the cable by means of biting projections 15 rigidly against the inside of the cap. The cap which may be shaped on its underside to assist in locating the cable has either resilient projections 3 and 4 which engage recesses 5 of the base or may be screwed to the base. The clip is held in position by a screw through the base. Several clips holding cables of various diameters may be connected in series by projections 9 and mating recesses 9a.
Patent GB-1090959-A (GB)
Title: Process for the polymerization of cyclopentene to unsaturated high polymers
Inventor: L HERMINIER ANDRE
IPC: C08G61/08
Filed: 1966-10-14
Abstract: Cyclopentene is polymerized to a polypentenamer by a catalyst which comprises the reaction product of an intimate mixture of tungsten dichloride and aluminium trichloride with an organoaluminium halide. A peroxide may be added as cocatalyst.  A high proportion of aluminium organic halide to tungsten dichloride causes a polymer of trans structure whereas a low proportion favours the cis structure.
Patent GB-1361873-A (GB)
Title: Capacitor discharge ignition systems for internal combustion engi es
IPC: F02P3/08
Filed: 1971-10-05
Abstract: 1361873 Ignition systems ROBERT BOSCH GmbH 5 Oct 1971 [6 Oct 1970] 46208/71 Heading F1B A capacitor discharge ignition system for an internal-combustion engine comprises an ignition capacitor 15 connected via a first switching member 13 and an inductive element 14 to a storage capacitor 12 the series combination of a primary winding 16a of an ignition transformer 16 and a second switching member 17 actuable alternately with the first switching member being arranged in parallel with the ignition capacitor, the ignition transformer having a secondary winding 16b for connection to at least one sparking plug 18. The inductive element may comprise a second primary winding of the ignition transformer or the primary winding of a second ignition transformer, the second ignition transformer having a secondary winding for connection to at least one sparking plug. The second switching member 17 may be a thyristor to which an oppositely biased diode 19 is connected.
Patent GB-1191500-A (GB)
Title: Television Standards Conversions.
Inventor: DAVIES ROBIN EVAN
IPC: H04N7/01
Filed: 1967-10-10
Abstract: 1,191,500. Television standards conversion. BRITISH BROADCASTING CORP. 7 Oct., 1968 [10 Oct., 1967], No. 46246/67. Heading H4F. The Specification describes a 525/60 to 625/50 television standards converter similar to that shown in Fig. 8 of Specification 1,052,438, but wherein the interpolation circuit of said Figure is replaced by a " delay and selection circuit " 146. If a 525-line raster and a 625- line raster are superimposed it will be seen that the rasters do not coincide. Thus registration errors arise if the 100-line difference between the standards is made up by repeating every 5th or 6th line of the 525-line raster. The vertical positions of successive fields of the 525-line raster may be plotted as in Fig. 2, thus the first two lines of field 1 are shown at A and C respectively constituting lines 1 and 3 of the complete picture (frame) and the first (interlaced) line of field 2 is shown at B. The cross position A+B represents the signal obtained by 2 averaging the first line of field 2 and the first line of field 1 delayed by (1 field -¢ line). The vertical positions of successive fields of the 625-line raster may be similarly plotted and when superimposed on Fig. 2 shows which line in the 525-line raster (or a derivative thereof, A+B e.g.- ) lies nearest the line in the 625-line 2 raster to be synthesized. To help in the assessment each line point in Fig. 2 and/or each derived line point, can be given an area or region of operation whereby if the 625-line falls therein said line is reproduced on outputs A 0  or B 0 . Line points A and B may be made simultaneously available by means of the circuit of Fig. 3A. The selection switches 12a and 12b are controlled by means 147, comparing the timings of the field and line sync pulses for both the standards. The regions for selection of lines A or B may be arranged as in Fig. 3B or 3C. "Inbetween" line points B+C/2 and A+B/2 may be derived by the circuit of Fig. 4A, the region for selection of these points being arranged as shown in Fig. 4B. The circuit of Fig. 5A provides, at the inputs to each averaging circuit 31 or 32, the following pairs of lines; A and A, or A and B, or B and B, or B and C, or C and C, as determined by the switching system 30. Any of the actual or derived lines are thus available at the outputs 13a and 13b, and the regions of selection for these lines are arranged as shown in Fig. 5B. Lines derived from the sums of any fractions of lines A, B and C. may be derived by suitable positive feedback circuits, such as shown in Fig. 6.
Patent GB-1369556-A (GB)
Title: Heat exchange apparatus
IPC: C07C51/265
Filed: 1972-10-09
Abstract: 1369556 Tubular heat exchangers HERCULES Inc 9 Oct 1972 [13 Oct 1971 (4)] 46501/72 Heading F4S [Also in Division B1] In heat exchange apparatus 10 for exothermic or endothermic reactions between a liquid material and a gas, e.g. liquid state oxidation of p-xylene and methyl p-toluate with molecular oxygen with the aid of an oxidation catalyst, and comprising a pressure vessel 12 containing one or more assemblies 16 of tubes 44 extending between coaxially aligned inlet and outlet headers 40 and 42, the tubes 44 are configured to minimize sag and to accommodate thermal expansion during operation. Each tube comprises upper and lower lateral end sections 56 and 53, an elbow section 5A, and a longitudinal portion 55 having a laterally offset section 57. The tubes are arranged in a plurality of longitudinally disposed spaced apart radial planes with an access space 52 being left for maintenance and repair purposes and to permit removal of a support 58 extending between the headers 40, 42, once the tube assembly has been secured in position within the vessel. The inlet and outlet headers 40 and 42 are connected to feed and discharge conduits 46 and 48 respectively. Cooling or heating fluid may be passed through the tubes depending on whether the reaction is exothermic or endothermic. Liquid material to be treated is introduced through a feed port 26 and treated liquid material is withdrawn from the vessel through an outlet 28. Gas is intro duced into the liquid material in the vessel from an assembly 14 comprising pipes 30 and nozzles 32; a spent gas outlet 29 is provided in the top of the vessel. The tubes 44 are free to flex and vibrate with the currents of gas and liquid material, thereby minimizing the deposition of solid precipitates on the tubes.
Patent GB-1392219-A (GB)
Title: Reflection reducing multiple coatings on transparent substrates
IPC: G02B1/115
Filed: 1972-10-12
Abstract: 1392219 Optical filters BALZERS PATENT - & BETEILIGUNGS AG 12 Oct 1972 [20 Oct 1971] 47011/72 Heading G2J A glass substrate having a refractive index, n, greater than 1.60, has a reflection-reducing multiple coating comprising five partial coatings having the following refractive indices and thicknesses (d):- n 1  #n (by up to 15%), d 1  = #/4; n 2  # n (by 10 to 30%), d 2  = from #/80 to #/16; n 3  = n 1 , d 3  = from #/8 to #/5; n 4  = n 2 , d 4  = #/2; n 5  # 1.5, d 5  = #/4; where # = reference wavelength in the vicinity of which reflection reduction is required. The subscripts refer to the partial layers, starting with the one nearest the substrate. Specific examples are given, see Fig. 5 (not shown).
Patent GB-1294153-A (GB)
Title: Process for the preparation of 4-bromo-2,5-dichlorophenol
IPC: F16B39/22
Filed: 1970-10-05
Abstract: 1294153 4-Bromo-2,5-dichlorophenol NIPPON CHEMICAL INDUSTRIAL Ltd. 5 Oct 1970 [8 Oct 1969] 47179/70 Heading C2C A process for the preparation of 4-bromo-2,5- dichlorophenol comprises reacting 2,5-dichlorophenol with bromine in a mol. ratio of 1 : 0À50 to 0À55 in a monocarboxylic acid solvent at a temperature not in excess of 40‹ C., introducing 0.45 to 0.51 mol. chlorine gas per mol. of 2,5- dichlorophenol into the reaction mixture at the same temperature, and removing the solvent.
Patent GB-1313525-A (GB)
Title: Method of producing heat pipe structures
IPC: C23C16/08
Filed: 1970-10-05
Abstract: 1313525 Heat pipes; depositing W BROWN BOVERI & CO Ltd 5 Oct 1970 [7 Oct 1969] 47221/70 Heading C7F [Also in Division F4] A method of producing a heat pipe structure includes the step of vapour plating an internal surface of the structure with a layer comprising tungsten by reacting WF 6  and H 2  under conditions such that the layer deposited is sufficiently porous to provide a capillary structure for the heat pipe structure. In an example, deposition is at 850‹C. on to a copper substrate. Other compounds may be added to the WF 6  to give a mixed coating layer; subsequent layers of differing porosity may be applied and a non-porous sealing layer may be superposed thereon.
Patent GB-1286826-A (GB)
Title: Conductor roll and method of making the same
IPC: C25D7/06
Filed: 1969-09-25
Abstract: 1286826 Rollers NIPPON STEEL CORP 25 Sept 1969 [25 Sept 1968] 47232/69 Heading F2U [Also in Division C7] For use in an electrolytic treating solution (e.g. having about 50 g./l. of CrO 3  and 0À5 g./l. of H 2 SO 4  for electroplating) a roller comprises a core 1 (e.g. a Cu shell reinforced by steel plates and having in a steel shaft 2 a passage 8 for cooling fluid) having a metal sleeve 4 (e.g. of stainless steel or another steel with a Ni or Cr coating 5 which is not corroded by the solution and is provided with a layer 6 of Cu or Cu alloy on its inside surface which surrounds and grips the cylindrical surface of the core.
Patent GB-1414704-A (GB)
Title: Tricyclic compounds useful as odoriferous and flavouring agents
IPC: A23K20/105
Filed: 1973-10-10
Abstract: 1414704 Flavourings FIRMENICH SA 10 Oct 1973 [10 Oct 1972] 47417/73 Headings A2B and A2C [Also in Divisions A5, C2 and C5] Foodstuffs and tobaccos may be flavoured with compounds of the formula wherein the two symbols X together represent an oxygen atom, or one of them represents a hydrogen atom and the other represents a hydroxyl, acyl, acyloxy, hydroxymethyl, acyloxymethyl or alkoxycarbonyl group; and: (i) m = 0, n = 1, p= 0, R<SP>1</SP> represents a methyl group, and the nucleus contains a double bond at position 5-6; or (ii) m = 1, n = 1, p = 0, R' represents a methylene group, and the nucleus contains a single bond at position 5-6; or (iii) m = 1, n = 1, p = 1, one of R<SP>1</SP> and R<SP>2</SP> represents a methyl group and the other represents a hydrogen atom, and the nucleus contains a single bond at position 5-6.
Patent GB-1005270-A (GB)
Title: Preparation of nitrosylsulphuric acid
IPC: C01B21/086
Filed: 1962-12-19
Abstract: Nitrosylsulphuric acid is obtained by a process which comprises adjusting the temperature of the mixture of gaseous products formed by the oxidation of ammonia, such that nitric oxide and nitrogen peroxide are present in the mixture in substantially equimolar amounts, and reacting this mixture with sulphuric acid.
Patent GB-1034659-A (GB)
Title: Apparatus for loading mine cars or like vehicles
Inventor: BARKER WILFRED
IPC: B65G67/00
Filed: 1962-12-20
Abstract: 1,034,659. Loading mine cars. W. H. BARKER & SON ENGINEERS Ltd. Dec.12, 1963 [Dec. 20, 1962], No. 48077/62. Heading B8E. Mine cars 7 running on rails 6 are loaded from an overhead conveyer 9 through shoots 4 or 5 and a further shoot 8. The shoot 4 has a horizontal length between its ends 4a, 4b greater than the separation between adjacent cars 7. The shoot 8 is pivotable so that it can direct material into either shoot 4 or 5 so that spillage is prevented between the ears. The shoot 8 is operated by a piston cylinder unit 11 controlled by valves 12 operated by a roller 14 engaging the sides of the car. Alternatively the valves may be controlled by the wheels of the car or the shoot 8 may be mechanically operated by a linkage engaged by the roller 14 or electrical operation may be employed.
Patent GB-1486237-A (GB)
Title: Centrifugal pumps
IPC: F04D7/04
Filed: 1974-11-07
Abstract: 1486237 Centrifugal pumps LANDUSTRIE SNEEK MASCHINENFABRIK ELEKTROTECHNIEK BV 7 Nov 1974 [19 Nov 1973 (2) 48113/ 74 Heading F1C A centrifugal pump for pumping liquid containing solids has a suction inlet 9 across which extends a bar 11 which co-operates with the upstream edges of impeller vanes 7 to provide a shearing action for breaking up the solids, the bar 11 having a downstream cutting surface which may be chamfered on either side of the rotational axis in opposite directions, Fig. 3, and a planar upstream surface for causing turbulent flow through the inlet 9. A flange 14 supports bar 11 and is deformable so that the axial spacing between the bar and the upstream edges of the blades may be varied. The wall 3 surrounding inlet 9 may have radial grooves which channel away solids deposited on walls 3 in order to prevent pump blockage.