baber/WOPTO huggingface dataset:
Patent GB-1317678-A (GB)
Title: Tuning indicator c-rcuit
IPC: H03J3/14
Filed: 1971-10-07
Abstract: 1317678 Radio receiving circuits SONY CORP 7 Oct 1971 [8 Oot 1970] 46779/71 Heading H3Q In a tuning indication arrangement for a frequency-modulation receiver a first output, comprising an S-shaped tuning curve with its centre zero on the correct tuning frequency f 0 , is derived from the discriminator over a filter 17, 18, Fig. 2, which removes audio frequencies. A second output, comprising a flat-topped unidirectional tuning curve is derived from the discriminator over a filter 20, 27 which removes audio frequencies. The first output is applied via terminal 33, Fig. 3, to a push-pull amplifier comprising transistors Q1-Q4 in long-tailed pair configuration. From the collector circuits of these transistors two unidirectional tuning signals of double-humped form, having zeros at the frequency f 0  and being of opposite polarity, are derived via a network of diodes d 1 -d 4  and are applied to either transistor of a long-tailed pair, Q5, Q6. Transistor Q7 comprising a biasing arrangement for transistors Q5, Q6. An inverted double-humped tuning signal appears across resistor 35 and to this is added a flat-topped unidirectional tuning voltage derived from the second output from the discriminator via terminal 38 and a D.C. amplifier comprising transistors Q8, Q9. There is derived over an emitter-follower Q 10 , at terminal 41 a sharplypeaked unidirectional bias voltage which is applied to diodes Da, Db, Dc which also comprises diodes Da<SP>1</SP>, Db<SP>1</SP>, Dc<SP>1</SP>, the join of respective parts of diodes Da, Da<SP>1</SP> and Dc being coupled via capacitors to terminals Ta, Tb, Tc respectively which are respectively connected to first, second and third I.F. stages of the receiver. A tuning voltage which, at the correct tuning point, is proportional to signal strength is applied to meter M, being derived from diodes Da<SP>1</SP>, Db<SP>1</SP>, Dc<SP>1</SP> over filters Ca, Ra &c.
Patent GB-1360874-A (GB)
Title: Conveyor belt comprising interconnecting plates
IPC: B65G17/08
Filed: 1971-10-07
Abstract: 1360874 Endless conveyer belts DRAADINDUSTRIE JONGE POERINK NV 7 Oct 1971 [7 Oct 1970] 46839/71 Heading B8A A conveyer belt comprises a plurality of plastics material plates, each having a plurality of closed eyes 2 disposed in spaced apart relationship along each of a pair of opposite sides of the plate, the closed eyes on one side of the plate being positioned between the closed eyes of one side of an adjacent plate to form a row, the eyes of one plate alternating with those of an adjacent plate, there being a respective rod passing through the apertures defined by the eyes of each row, whereby adjacent plates of the belt are interconnected. In the spaces between the closed eyes, each plate is undercut in the form of a quadrant of a circle, so that the eyes of one side of one plate fit snugly into the recesses of a side of an adjacent plate. The plates may be assembled side by side not only along the length of the belt, but also transversely of the belt, by means of at least one projection 6 on one plate and a complementary socket or sockets on an adjacent plate. The plates forming the sides of the belt may be provided with raised outer edges. The plates may be of transparent plastics material. The material may be mixed with asbestos for high temperature conveying or, with polysulphones for low temperatures.
Patent GB-1130341-A (GB)
Title: Thin-film electrical components
Inventor: CHAPELLE EDWARD ALBERT LA
IPC: H01L49/02
Filed: 1965-11-05
Abstract: 1,130,341. Printed circuits. WESTERN ELECTRIC CO. Inc. 5 Nov., 1965 [9 Nov., 1964], No. 46968/65. Addition to 1,125,394. Heading H1R. A thin film circuit is made by the selective sequential etching of a laminate, Fig. 1B, comprising a substrate 11 of glass or ceramic, a resistive layer 12 of tantalum nitride, a conductive anodizable layer 13 of metal, e.g. aluminium (or niobium), a layer 14 of tantalum, and a top layer 15 of highly conductive metal such as copper plates with palladium, or gold. Layers 12-15 are preferably deposited on substrate 11, as by sputtering or evaporation, in a continuous vacuum process. A first resist is applied to areas of layer 15 required to form terminals, and the layer is treated with a first etchant, e.g. ferric chloride or aqua regia (Figs. 2A, 2B, not shown). The first resist is removed, and a second resist is applied to the terminals and to the tantalum layer 14 where the latter is required for capacitor formation, and where the underlying aluminium is required for interconnections; parts of layers 13, 14 unprotected by the second resist are then removed, using hydrochloric acid or sodium hydroxide (Figs. 3A, 3B, not shown). The second resist is removed, and a third resist applied in its place, and also to the areas of resistive layer 12 to be retained. Unwanted areas of layer 12 are removed, using hot concentrated sodium hydroxide (Figs. 4A, 4B, not shown); an aqueous solution of hydrofluoric and nitric acids may alternatively be used, in which case the formation of an oxide layer between substrate 11 and layer 12 is desirable to prevent undercutting, as disclosed in Specification 962,015. After removal of the third resist, the exposed area of layer 14 is anodized at 32, Fig. 7B, to provide a capacitor dielectric layer; alternatively, a dielectric layer may be deposited. An upper capacitor electrode and lead layer 40, e.g. of gold, is applied, and the values of resistors are trimmed by anodization, as at 31a. If inductors are required, they may be formed by etching from layers 13 or 15; interconnections may alternatively be formed from layer 15; and in some cases layer 15 may be omitted altogether.
Patent GB-1137159-A (GB)
Title: Heat resistant materials
IPC: B01D39/20
Filed: 1966-10-20
Abstract: 1,137,159. Cellular refractories. PPG INDUSTRIES Inc. 20 Oct., 1966 [21 Oct., 1965], No. 46975/66. Heading C1J. An organic foam containing a refractory is obtained by heating a composition comprising an organic isocyanate terminated prepolymer resin, a catalyst for isocyanurate formation, a blowing agent, a pulverulent inorganic refractory and a flux of a Group 1 or 2 metal compound, e.g. Na bicarbonate or silicate. Blowing agent also includes beating in air or a gas or introducing gas under pressure into the polymerizable mixture. The foam can be heated to char the organic portion or to eliminate it, leaving a refractory foam which can be impregnated with, e.g. synthetic resins. Specified refractories are SiO 2 , Al 2 O 3 , ZrO 2 , TiO 2 , ThO 2 , Sb 2 O 3 , WO 3 , carbides of W and B, B, Ca and Mg ZrO 3  and V 2 O 5 . Fibres, e.g. asbestos, glass, steel wire, carbonaceous, zirconia and quartz fibres are optional.
Patent GB-1524219-A (GB)
Title: Apparatus for filtering liquid
IPC: B01D/
Filed: 1975-11-14
Abstract: 1524219 Pressure filter for wine A VELO and G VELO [trading as VELO ENOMECCANICA DI VELO ANTONIO E GIOVANNI SNC] 14 Nov 1975 [29 Nov 1974] 47011/75 Heading B1D A pressure filter (e.g. for wineries) comprises a pressure container 14 with a plurality of, e.g. fabric covered filter plates 16 mounted therein and arranged vertically, a liquid inlet 17 a filtered liquid outlet 25, and a bottom solids discharge outlet 19. The plates are mounted on at least one bottom supporting cross beam 24 arranged horizontally and transversely with respect to the pressure container 14, said cross beam being affixed to the container (e.g. by flexible plates 26, sealed at edges between plates 27 and 28) so as to be rectilinearly and axially vibratable by a vibrator means 29. Released filter cake falls towards bottom outlet 19 for removal. Fresh filter aid is mixed in container 13 by stirrer 21 and pumped by pump 18 into filter vessel (container 14) followed by liquid to be filtered, also through pump 18.
Patent GB-1368756-A (GB)
Title: Non-stick finish for bitumen-coated sheet material
IPC: E04D5/02
Filed: 1971-10-11
Abstract: 1368756 Coated sheet material B P B INDUSTR LW Ltd 10 Oct 1972 [11 Oct 1971] 47275/71 Heading B2E A sheet material has a bitumen-coated surface and a non-stick coating applied directly to the bitumen coating comprising a pigment and a protective colloid. The pigment may be whiting, titanium oxide, clay, limestone, perlite powder, slate flour or pulverised fuel ash, or mixtures of these. The protective colloid may be hydroxyethyl cellulose, carboxymethyl cellulose or sodium alginate. The coating may be applied directly to one or both surfaces of the membrane while it is still hot, by spraying, roller or coating.
Patent GB-1103584-A (GB)
Title: Container for delicate objects and the like
Inventor: CYNA SIMON
IPC: A45C11/38
Filed: 1963-12-02
Abstract: 1,103,584. Boxes. COMMERCIAL DRUG & CHEMICAL CO. Ltd. 30 Nov., 1964 [2 Dec., 1963], No. 47499/63. Heading B8P. [Also in Division G2] A resilient packing for fragile articles, e.g. a cine camera and its accessories, comprises an unapertured base sheet 4 of foam rubber, polythene foam &c. and one or more layers 6a &c. of the same material with holes 7 to fit the articles. Another unapertured layer 5 can be laid on top of the apertured layers 6. The packing is illustrated as contained in a camera case (1), Fig. 1 (not shown), having a hinged lid (3) with the unapertured layer (5) in it, and provided with a handle. The bottoms of the holes 7, Fig. 3, are built-up with pads 11 of foam rubber to fit the carried articles. Alternatively, the case 1 may be omitted. More than one resilient packing may be used in one case, and one resilient packing may be incorporated in the lid. The resilient packing may be provided only in the lid of the case.
Patent GB-1012517-A (GB)
Title: Improvements in or relating to hot and cold water mixing taps
Inventor: COOPER FRANCIS CYRIL
IPC: F16K11/056
Filed: 1962-12-18
Abstract: 1,012,517. Valves. WOODHOUSE & CO. Ltd. March 17, 1964 [Dec. 18, 1962], No. 47851/62. Heading F2V. In a mixing valve, initial rotation of a selfreturning handle 4 causes a cam 31 to depress a stem 29 which in turn moves a valve member 27, located in a bore 21 in a spigot 12 of a housing part 11, to unseat a self-closing valve 2 having a sealing ring 16 against the action of a dashpot 15, thereby allowing cold water to flow from inlet C via chambers 20, 22 and passages 23, 24 to an outlet 3. Upon further rotation of the handle, the cold water is progressively cut off by the lower part of the valve 27 which at the same time progressively uncovers a series of radial ports 26 communicating with a hot water inlet H, thereby allowing hot water to flow to the outlet. The number of ports at the positions progressively uncovered may increase. In the alternative embodiment of Fig. 2, the sealing ring 16 of Fig. 1 is replaced by a washer 16A and the control of the hot water from annulus 25 is effected by a conical portion 28A of the valve 27. The handle 4 and cam 31 may be replaced by a winged knob in quick-pitch threaded engagement with the body and bearing on a head of the stem 29, a spring acting on the underside of the head to effect self return.
Patent GB-1343090-A (GB)
Title: Coumarine derivatives their preparation and use as brighteners
IPC: C07D521/00
Filed: 1971-10-14
Abstract: 1343090 Coumarin derivatives and their preparation BAYER AG 14 Oct 1971 [15 Oct 1970] 47864/71 Heading C2C [Also in Division D1] Coumarin compounds of the formula wherein A denotes a carbocyclic aryl radical or a radical of the formula in which X presents -CH- or N and Y represents  wherein R 1  and R 2  independently denote a hydrogen atom or an alkyl or aryl radical, and Z 1  and Z 2  represent the remaining members of an aromatic 5-membered or 6-membered heterocyclic structure to which may be fused a further benzene ring, or one of the radicals Z 1  and Z 2  represents a direct linkage between the radicals X and Y, B represents a hydrogen or halogen atom or an alkyl, acylamino, etherified hydroxyl nitrile, optionally modified carboxyl or sulphonamide group, or is a radical as defined for A and is identical to or different from A, R<SP>1</SP> denotes a hydrogen atom or an alkyl group, R<SP>11</SP> denotes a non-ionic-substituent, Andenotes a colourless anion, and n is 0, 1 or 2, with the proviso that at least one of the radicals A and B represents a heterocyclic radical of Formula (II), may be prepared by reacting a corresponding non- quaternized compound with a compound of the formula The invention also includes a concentrated aqueous or aqueous-organic solution comprising one of the above compounds and water or a mixture of water and a water-soluble organic solvent. The reaction is preferably effected at 0-80 C. in a fatty (C 1-4 ) acid medium. The compounds may be used in the optical brightening of textile materials.
Patent GB-1136766-A (GB)
Title: Structural elements comprising adherent thermoplastic polyarylene polyether and an adherend and method for making the same
IPC: F16D69/02
Filed: 1965-11-11
Abstract: 1,136,766. Tyre tread studs. UNION CARBIDE CORP. 11 Nov., 1965, No. 47960/65. Heading B7C. [Also in Divisions B2, B5, B6 and C3] Tungsten carbide studs which have been sheathed in a thermoplastic polyarylene polyether are embedded in premoulded holes in a tyre tread to give the tyre better grip when braking, accelerating, turning or under winter driving conditions. The thermoplastic polyarylene polyether may be prepared by reacting 2,2 - bis - (4 - hydroxyphenyl) - propane with 4,4<SP>1</SP>-dichlorodiphenylsulphone and the studs are in the form of cylindrical pins  inch in diameter and ¢ inch long.
Patent GB-1111384-A (GB)
Title: Microwave apparatus for measuring moisture content
IPC: G01N22/04
Filed: 1963-12-05
Abstract: 1,111,384. Measuring moisture content. MICROWAVE INSTRUMENTS Ltd. and J. BILBROUGH. Dec.4, 1964 [Dec. 5, 1963], No.48135/63. Headings G1N and G1U. The moisture content of a sample is deduced from the change in Q of a microwave resonance cavity upon insertion of the sample into one of two holes 4, 5 located in regions of different electric field strength to provide two sensitivity ranges. The cavity has a tuning piston 13 and the power input waveguide 3 may be matched to the cavity by adjusting screws 14. An arrangement is described in which the source frequency is swept through resonance in a sawtooth waveform and the amplitude vs frequency curve of the detector 7 output is displayed on an oscilloscope. Quartz tubes may replace the sample holes to enable continuous monitoring of a flowing medium. Calibration measurements may be made with a water-free sample.
Patent GB-1203577-A (GB)
Title: Improvements in or relating to the preparation of polymerized episulphides
Inventor: WRAGG REGINALD TREVOR
IPC: C08G75/08
Filed: 1966-10-27
Abstract: 1,203,577. Amino-thiols. DUNLOP CO. Ltd. 24 Oct., 1967 [27 Oct., 1966], No. 48157/66. Heading C2C. [Also in Division C3] Non-polymeric amino-thiol adducts containing thiol-substituted groupings attached to nitrogen atoms, are obtained by reacting primary or secondary amines with episulphides. In examples adducts are obtained by refluxing in toluene mixtures of propylene episulphide with diethylene triamine, triethylene tetramine, tetraethylene pentamine, benzylamine, hydrazine and phenylenediamine.
Patent GB-1170093-A (GB)
Title: Improvements in or relating to Packaging Machines
IPC: B65B11/52
Filed: 1966-10-27
Abstract: 1,170,093. Wrapping machines; reciprocating conveyers. INTERNATIONAL INPAK Inc. 27 Oct., 1966 [29 Oct., 1965], No. 48163/66. Headings B8A and B8C. A machine for forming packages from blanks comprises a folding station E, where blanks 30 are retained by three suction cups 100 whilst arms 120 are moved upwardly to fold the blank in half upon itself. Feed grippers 6, 10 then grasp the blank, the arms 120 and suction cups 100 retract, and the grippers carry the folded blank to a sealing station F. The grippers are mounted on a plate 14 reciprocating in rails 16 and opened and closed by piston and cylinder means 26. Fingers 108, overlying the central score-line, facilitate the folding. The blanks, which comprise card frames 29 having four pairs of window openings, bridged by a transparent film 31, are fed from a supply station (A), Fig. 1 (not shown), into guideways 2, Fig. 2, which extend through a film-heating station (B), a station (C) at which the film is formed into pockets, a loading station (D) where articles are loaded into the pockets, the folding and sealing stations E and F and a film shrinking station (G). In the guideway the blank is gripped by the feed grippers 6 reciprocable between station A, and station B. Upon reaching station B fixed grippers 80 close to hold the blank whilst grippers 6 open and return to feed the next blank. Further feed grippers (not detailed), reciprocable between stations (B) and (C), Fig. 1, then carry the blank to station (C) where fixed grippers again hold the blank. In this manner the blank is carried through all the stations.
Patent GB-1510518-A (GB)
Title: Surveillance systems
IPC: H04M11/04
Filed: 1975-11-25
Abstract: 1510518 Selective signalling SAAB-SCANIA AB 25 Nov 1975 [26 Nov 1974] 48380/75 Heading G4H In a surveillance system having a central unit connected to a plurality of terminal units, each terminal unit has a transfer blocking register set from the central unit to prevent notification to the central unit of changes of status of at least some sensors at the terminal unit, the register having a memory cell for each such sensor. As disclosed, there are other sensors which cannot be so blocked. The sensors are multiplexed to a comparator together with the contents of a status register (having a memory cell for every sensor) to detect changes, each change causing the sensor outputs to be stored in the status register and pulsing a dial-up unit via a gate which is enabled by the output of a multiplexer fed from the transfer blocking register (for the blockable sensors) and with "ones" (for the non-blockable sensors). If a pulse reaches the dial-up unit, it establishes a connection over the telephone network to the central unit. The address of the terminal unit and the contents of the status register are sent, and the central unit sends a reply back, e.g. to give an alarm. The output of the lastmentioned multiplexer may be used to enable the comparator instead.
Patent GB-1059559-A (GB)
Title: Controlling the transverse register of a web
IPC: B65H23/038
Filed: 1964-11-27
Abstract: 1,059,559. Feeding webs. 0. RUTHNER. Nov. 27, 1964 [Dec. 23, 1963], No. 48403/64. Heading B6B. A device for transversely registering a web 11 comprises a roller 1 mounted in a yoke 2 pivotally mounted at 3. The angle α subtended between the longitudinal path of the web and the axis 3 is acute and preferably 45 degrees. The linkage 4, 5, 6 is connected to an hydraulic cylinder controlled by a photoelectric device 7-10 sensing lateral deviation of the web edge.
Patent GB-1108634-A (GB)
Title: Spindles
Inventor: ELLIOTT GILBERT
IPC: F16C33/10
Filed: 1964-11-30
Abstract: 1,108,634. Bearings; lubricating. IMPERIAL CHEMICAL INDUSTRIES Ltd. 15 Nov., 1965 [30 Nov., 1964] No. 48608/64. Heading F2A. [Also in Division D1] A shaft is supported by a plain journal bearing 6 and by a footstep 3, the end of the shaft having a screwthread to force lubricant from the footstep bearing through a passage external to the shaft to the plain bearing ' 6. In the Figure accompanying the complete Specification lubricant is pumped by the shaft from a reservoir and through hole 4, the space around the spindle, and passages 14, 11, 10 to the bearing surface of bush 6. The oil returns via passage 12 to a space between bolster 9 and a mounting (not shown). In another embodiment lubricant, is forced downwardly through passage (4) and passes via a passage (5) to bush (6) excess lubricant from bush (6) passing into the space between shaft (1) and bolster (9).
Patent GB-1262059-A (GB)
Title: Shields for steam generator tubes
Inventor: ASH EDWARD B
IPC: F22B1/06
Filed: 1970-10-13
Abstract: 1,262,059. Heat exchanger protector. NORTH AMERICAN ROCKWELL CORP. 13 Oct., 1970 [13 Oct., 1969], No. 48670/70. Heading F4A. In a liquid metal heat exchanger, primary fluid, e.g. liquid sodium, flows through a chamber 28, defined by housing 12 and tube sheet 14, entering by port 16 and leaving by port 18. Secondary fluid, e.g. water, passes up tubes 20 through the sodium from space 30. The tubes are welded at 22 to stubs 24 on the tube sheet and, to protect the surrounding tubes andthe chamber walls from the results of an accidental leak and sodium water reaction at these weak points, an annular shield 34 is placed around each weld. The shields are concentric with and annularly spaced from the tubes 20 and are joined at 36 to the tube sheet. An annular shield 40 surrounds all the tubes, spaced from the housing 12 and secured to the tube sheet, as further protection. Shields may protect any weld between tube sections within the chamber.
Patent GB-1453936-A (GB)
Title: Method of moulding reinforced plastic materials
IPC: B29C70/48
Filed: 1973-10-19
Abstract: 1453936 Moulding fibre reinforced tubes R H McDONALD H E RUSSELL and P R WELLSTOOD-WHITE 19 Oct 1973 48882/73 Heading B5A A method of moulding a tube or a lining therefor from reinforced plastics material comprises wrapping a cylindrical core with fibrous material, inserting the wrapped core into a tubular mould or tube to be lined, connecting the annular space between the core and the mould or the tube to a source of plastics material and an air exhauster, and drawing the plastics material into the space to fill the space and impregnate the reinforcement, thus forming the tube or tube lining. The air space is evacuated to a vacuum of 5-30 inches Hg, and a sight glass may be provided in the plastics inlet line to show when the mould is full. Where a tube lining is to be fabricated, no release layer is used on the inner surface of the tube but in other cases internal surfaces of the mould are wax polished and coated with polyvinyl alcohol or a self-releasing gel coat. Preferred plastics are thermosetting polyester resins, and the fibrous reinforcement may be of glass, carbon or natural fibres.
Patent GB-1176978-A (GB)
Title: Improvements in or relating to Oscillating Means, for example for Lawn Sprinklers
Inventor: CRISP DAVID JOHN
IPC: B05B3/16
Filed: 1967-10-30
Abstract: 1,176,978. Converting rotary to oscillatory motion. HOZELOCK Ltd. 29 Oct., 1968 [30 Oct., 1967], No. 49108/67. Headings F2K and F2Q. [Also in Division A1] A spray tube 37 provided with apertures 38 is oscillated through a pre-selected arc by means of a crank 18 to which tube 37 is connected through a hollow shaft 32, collar 31 and screw 30 which slidably engages in a slot 17, the crank 18 being oscillated about a pivotal mounting 19 by an eccentrically rotatable pin 16A which slidably engages in slot 17. The pivotal mounting 19 is eccentrically rotatable to and lockable in one of four pre-selected positions to control the amplitude of the oscillations, a control wheel 23 having four slots engageable by a latch 28 being provided for this purpose. In operation, water supplied to the spray impinges on a vane (not shown) which rotates a shaft 14, worm 13, worm-wheel 15 and stub shaft 16 on which pin 16A is mounted, causing the latter to rotate eccentrically and the spray tube 37 to oscillate.
Patent GB-1397727-A (GB)
Title: Tobacco feed systems
IPC: A24C5/18
Filed: 1971-07-28
Abstract: 1397727 Centrifugal separators MOLINS LTD 27 July 1972 [28 July 1971] 49525/74 Divided out of 1397726 Heading B2P The subject-matter of the present Specification is identical with that of the parent Specification 1397726 but the invention is directed to an apparatus for pneumatically feeding tobacco to a cigarette making machine including an air separator comprising a chamber having an inlet for receiving a flow of tobacco carried by air, a deflector for deflecting the tobacco to a tobacco outlet, and an air outlet remote from the tobacco outlet, the deflector being movable so that it can move from a first position, in which it deflects the tobacco to the tobacco outlet, to a second position in which it deflects the tobacco so that it passes through a different outlet.