baber/WOPTO huggingface dataset:
Patent GB-1313420-A (GB)
Title: Noise cancelling circuits
IPC: H04N5/213
Filed: 1970-08-18
Abstract: 1313420 Television; automatic gain control; interference suppression RCA CORPORATION 18 Aug 1970 [25 Aug 1969] 39680/70 Headings H3T H4F and H4L  A television receiver is provided with means for rendering the synchronizing stage inactive and reducing the action of the A.G.C. in the presence of noise signals which exceed a predetermined level. An amplifier for a colour television receiver also is described which amplifies the composite colour signal and isolates the various components from one another. Interference suppression.-The output of the receiver I.F. stage is supplied via a video detector 12 to an emitter follower 25, tuned circuit 18, 20 removing intercarrier beat and filter 23 blocking the sound carrier. Emitter follower 25 provides inputs for chrominance amplifier 35, and luminance amplifier 36 respectively. The collector output of amplifier 36 is supplied via a delay line 100 to the luminance channel, the emitter supplying the synchronizing pre-amplifier 56, the A.G.C. transistor 50 and the noise suppression transistor 70. A capacitor 44 across the emitter load 43 assists in limiting noise pulses. Transistor 56 supplies a sync-separator 65, a keying pulse from the horizontal deflection circuit 66 being provided for the A.G.C. transistor 50 which conducts on the sync-tip portions of the composite signal. Transistor 70 is biased to conduct whenever noise pulses exceed the sync-tip level by more than a predetermined amount thus causing its collector to go positive and drive transistor 56 towards cut-off and it also reduces the magnitude of the signal supplied to the A.G.C. transistor 50.  Chrominance amplifier.-The magnitude of the series connection of emitter resistors 39, 40 of transistor 35 is arranged to be much larger than that of the collector resistor 38 and to obtain a relatively large voltage swing at the collector, the voltage +V c  is much larger than + V cc , capacitor 41 being selected to by-pass the chrominance components. By this means the amplifier produces a high A.C. gain for chrominance signals and a low gain for the luminance signals, the transistor 35 further isolating the chrominance channel and its associated controls from the luminance channel. Resistance 39 which is of lower value than resistance 40, provides current feedback and isolates capacitor 41 to prevent it from reflecting back its capacitive reactance to the base of transistor 35.
Patent GB-1538814-A (GB)
Title: Method of monitoring parts of a multiplexer/demultiplexer unit
IPC: H04Q11/04
Filed: 1977-09-26
Abstract: Demultiplexer/multiplexer units which are connected to a switching unit of a PCM exchange via a PCM time-division multiplex line can have the task of distributing data or signal channels transmitted via the time-division multiplex line to the connected channel-individual device or combining signals received from there for transmission in the opposite direction or can be used for distributing digital information supplied in time-division multiplex to audio-frequency connections or to combine this information from there on the time-division multiplex line. The central parts are then monitored by the value of a certain time channel being forwarded, for locking the channel counter with the frame alignment word sent by the switching unit, via the central parts (FZ, LS) to the decentralised function part (FDO) allocated to this time channel and being sent back in the opposite direction of transmission, after reflection, to the frame detection circuit (RED) of the switching unit. For outputting error messages to the central processor, due to a missing or erroneously received frame alignment word, the signalling paths existing between the central processor and the switching unit are utilised. <IMAGE>
Patent GB-920495-A (GB)
Title: Moulds and conveyor belting produced therefrom
Inventor: LEDGARD KENNETH TREVOR
IPC: B29D29/06
Filed: 1958-12-11
Abstract: A mould form for the manufacture of roughfaced conveyer belting is made by preparing a mould from powdered moulding material, using as a pattern a surface of a piece of woven fabric having surface cords or threads omitted at intervals, and casting the mould form in metal from the mould so produced.  The preferred moulding material is moulding sand but other materials can be used, e.g. plaster of Paris or resinous compositions containing mineral fillers, and the fabric may be a woven textile or a woven wire fabric.  Several of the finished mould forms are pinned together, e.g. by drilling one or more holes in each side of each mould form to enable pegs to be inserted between any two mould forms.  The mould forms are then set up in a tight frame on the bottom plate of a belting press in such a way that the ridges are across the length of belting to be moulded.
Patent GB-1106769-A (GB)
Title: Improvements in or relating to tensioning devices
IPC: F16H7/12
Filed: 1965-09-21
Abstract: 1,106,769. Belt and,chain terisioners. FFSA. 21 Sept., 1965 [21 Sept.. 1964], No. 40276/65. Heading F2Q. An automatic tensioner for a chain or belt transmission comprises a roller or sprocket 11, rotatably mounted on an arm 9 pivoted about a fixed shaft 8, urged against the belt or chain by a tension spring 17 connected to the arm 9 and to the transmission easing, and pawls 29 housed in the easing 5 are spring urged normal to a face 22 of an extension 21 of the arm 9 to engage a toothed rack 23 thereon so that angular movement of the arm 9 against the action of the spring 17 is limited to an amount ensuring that the slack in the belt or chain is kept within a predetermined limit. The four pawls 29 are staggered to give an effective rack pitch less than the geometric tooth pitch of the rack.
Patent GB-1536649-A (GB)
Title: Capless incandescent lamps
IPC: H01K1/44
Filed: 1977-09-28
Abstract: 1536649 Lamp holders PHILIPS GLOEILAMPENFABRIEKEN NV 28 Sept 1977 [1 Oct 1976] 40322/77 Heading H2E [Also in Division H1] A lampholder 20 for a capless incandescent lamp of the kind having a pair of current supply conductors 4 which emanate from the end face of the pinch seal remote from the filament and are bent back along a first major face of the pinch comprises two contacts 21 for the conductors 4 disposed on one wall and a spring loaded fixing member 22 mounted in an opposing wall, the member being in engagement with a groove 9 or the like in a second oppositely facing major face of the pinch. The bevelled edges 11 of the pinch are engaged by similarly bevelled resilient centring pins 23.
Patent GB-1048117-A (GB)
Title: Improvements in or relating to collapsible crates and containers
IPC: B65D6/22
Filed: 1964-10-05
Abstract: 1,048,117. Crates. R. MIOCQUE. Oct. 5, 1964 [Oct. 4, 1963], No. 40421/64. Heading B8P. In a collapsible crate the sides 1-10 are pivotably connected by horizontal end laths 13, 14 which are urged together centrally and joined by vertical boards 11, 12 during assembly, so that they exert pressure on the vertical posts 3, 4. In the embodiment shown the crate is provided with a detachable lid, the projecting ends of which engage under the end wall laths, and a detachable bottom. The lid and bottom may be interchangeable. In the embodiment of Fig. 6 (not shown) the lid is hinged to one side by ropes 49, 50 and the bottom pivoted to the other side, between the post 44, 45. The lid and bottom are folded inwards between the side wall posts so that the crate may be collapsed to a flat condition. Stacked crates are locked together during transport by projections 57, 58 engaging recesses 55, 56. Wheels, which only engage the floor in the tilted position of the crate, may be provided in holes in the laths 53, 54.
Patent GB-1192317-A (GB)
Title: Tape Tension Control Arrangement for Magnetic Sound Recorders
Inventor: RICHT HUBERT
IPC: G11B15/43
Filed: 1968-08-23
Abstract: 1,192,317. Feeding record tapes. SUDDEUTSCHE MECHANISCHE WERKSTATTEN WOLF FRHR V. HORNSTEIN K.G. 23 Aug., 1968 [24 Aug., 1967], No. 40487/68. Heading G5R. In a tape tension control system similar to that described in Specification 1,192,315, the rigid sensing lever 1 is pivoted about an axis perpendicular to the plane of the chassis 3 and acts through a rigid intermediary lever 19, pivoted about an axis parallel to the chassis plane, on a friction clutch 11, thereby influencing the torque transmitted by the clutch 11 to a tape reel 10. The levers 1, 19 are of light metal, pivot on knife-edge bearings 5, 22, and act on the clutch 11 through a ball bearing 21. A set screw 20 permits adjustment of the system.
Patent GB-1021500-A (GB)
Title: Fluid-flow control spool valves
IPC: F16K11/07
Filed: 1964-10-06
Abstract: 1,021,500. Valves. WESTINGHOUSE AIR BRAKE CO. Oct. 6, 1964 [Oct. 28, 1963], No. 40624/64. Heading F2V. A spool valve, comprising a spool 3 slidable against a spring 19 within cylindrical liners 11 to bore 2 disposed in alternate contiguous relationship with sealer elements 12, comprising resilient sealing rings 14, 15 attached to a metal ring 16, and having end spacer elements 17 may be modified by replacing an end spacer element 17 and adjacent liner 11 and sealer element 12 by an element 23 and a cylinder 21 to accommodate piston 22 which is tightly sleeved upon the end of spool 3 and includes an inwardly extending annular shoulder 28. The spool is displaced, to interconnect fluid passages 9 through liner apertures 13, by fluid pressure from fitting 32, acting, via aperture 30 in cylinder 21, upon the spool end enlarged by piston 22.
Patent GB-1445094-A (GB)
Title: Spline joint assemblies
IPC: F16D3/06
Filed: 1972-09-01
Abstract: 1445094 Spline coupling GKN TRANSMISSIONS Ltd 23 Aug 1973 [1 Sept 1972] 40643/72 Heading F2U Axial withdrawal of a splined shaft 7 from a splined sleeve 5 is prevented by a retaining member 9 trapped between abutments 16, 17 on the sleeve and shaft it being radially contractible to clear the abutment on the sleeve to permit withdrawal when required. The retaining member may be made of polypropylene.
Patent GB-938428-A (GB)
Title: Process for preparing products of high molecular weight by polymerisation of formaldehyde
IPC: C08G2/08
Filed: 1960-01-19
Abstract: Formaldehyde is polymerized by introducing it into an inert liquid vehicle in which polymeric material serving as polymerization initiator is suspended.  Specified polymeric materials are the solid polymers and copolymers of ethylene, propylene, butylene and styrene, polyvinyl chloride, polyamides, polyacrylonitrile and condensation products of aldehydes with phenols, amines, urea and melamine, while preformed polyformaldehyde is preferred.  Catalysts, stabilizers and antioxidants may be present and the formaldehyde may be introduced into the suspension at a rate such that practically no unconverted formaldehyde escapes from the suspension.  Specified liquid materials are saturated hydrocarbons, cyclic saturated hydrocarbons, aromatic hydrocarbons, halogenated and nitrated hydrocarbons, ethers, nitriles and acetals.  Specification 766,629 also is referred to.
Patent GB-408746-A (GB)
Abstract: 408,746. Thermal switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Randolph, C. P.; 727, Columbian Avenue, Oak Park, and Eskin, S. ; 1006, South Mansfield Avenue, Chicago, both in Illinois, U.S.A.) Dec. 19, 1932, No. 36003. Convention date, Dec. 19, 1931. [Class 38 (v).] In a thermostaticallv controlled electric flat-iron, a cast iron body 10 encloses a heating unit 11 and is provided with a cover 12 and handle 13. A bimetallic bar 15, which may be of nickel-chromium steel and the metal known by the Registered Trade Mark "Invar", is fixed at 16, and at 17 engages a U-shaped spring 18. The bar 15 is given an initial curvature OC, Fig. 6, corresponding to a temperature intermediate between the maximum and minimum temperatures of the range of the control device. The setting may be adjusted by a rotatable rod 21 which varies the position of a knife edge 28. The switch comprises a rigid arm 30 secured to the spring 18 and carrying a contact member 31 adapted to bridge fixed contacts 42. The spring 18 with the contact member 31, moves with a snap action as the point 17 passes through the line joining the points 20, 28. Specifications 144,767, [Class 37], 280,323, [Class 38 (v)], and 402,243 are referred to.
Patent GB-1186988-A (GB)
Title: Process for producing L-Lysine
IPC: C12P13/08
Filed: 1968-08-28
Abstract: 1,186,988. L-Lysine by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 28 Aug., 1968 [30 Aug., 1967], No. 41045/68. Heading C2C. L-Lysine is produced by cultivating mutant strains of Corynebacterium glutamicum that are derived from C. glutamicum ATCC 13287 or ATCC 14296, the mutant strains requiring leucine, histidine, or isoleucine and valine for growth in addition to the specific requirements of the parent organisms, which for ATCC 13287 are: homoserine or threonine and methionine or threonine and cystathionine or threonine and homocysteine; and for ATCC 14296: threonine. The fermentation is conducted under aerobic conditions preferably at pH 5-8À5 and at 24-37 C. on a nutrient medium containing the necessary amino-acids which may be present as components of a natural substance such as a protein hydrolysate. Specified mutant strains of C. glutamicum are ATCC Nos. 21253, 21254, 21255, 21299 and 21300.
Patent GB-1057940-A (GB)
Title: Improvements in and relating to the preparation of pharmacentical compositions comprising orally active mineral medicaments
IPC: A61K33/00
Filed: 1964-10-08
Abstract: A product which forms a gel on mixing with water is prepared by lyophilizing a colloidal dispersion of a water-insoluble mineral substance in an aqueous medium comprising an organic gelling agent, e.g. agar, pectin, carob bean flour, vegetable gum, water-soluble alginate, methyl-cellulose, starch or polyvinyl alcohol.  Specified minerals are colloidal aluminium phosphate, hydroxide and carbonate, bismuth oxide and hydroxide silica, carbon and silver.ALSO:A product which forms a gel on mixing with water is prepared by lyophilizing a colloidal dispersion of a water-insoluble, orally active mineral medicament in an aqueous medium comprising an organic gelling agent e.g. agar, pectin, carob bean flour, vegetable gum, water-soluble alginate, methyl-cellulose, water-soluble polyvinyl alcohol or a starch.  Specified medicaments are colloidal aluminium phosphate, aluminium hydroxide, aluminium carbonate, bismuth oxide, bismuth hydroxide, silica carbon or silver.  Local anaesthetic, cicatrizants, deangestants and spasmolytics e.g. procaine, betoxycaine, allantoin, matricaria, glycine, gaiazulene, sorbitol and tropine may also be present.  The product may be made up into pills or tablets.
Patent GB-907817-A (GB)
Title: Diazoamino compounds and process for the production of ice-colours in textile printing
IPC: D06P1/12
Filed: 1959-12-03
Abstract: The invention comprises diazoamino compounds of formula <FORM:0907817/IV (b)/1> wherein R is the radical of a diazo component free from sulphonic and carboxylic acid groups, R1 is an optionally substituted alkyl radical and R2 is an NH-alkyl, NH-hydroxyalkyl, N-(hydroxyalkyl)2 alkyl-N-hydroxyalkyl, NH-CH=CH2, NH-CH2-CH=CH2 or -NX substituent wherein X is a bivalent 5-membered radical which completes a nitrogen-containing ring.  They are prepared by reacting a diazonium compound with an amine of formula <FORM:0907817/IV (b)/2> They are used in the preparation of azo dyes on the fibre (see Group IV(c)).  In examples the preparation of diazoamino compounds from the diazonium compounds of 2-methyl-4- or -5-chloro-, 2-methyl-4:5-dichloro-, 2-methyl- or -methoxy-4-nitro-, 2-chloro- and 2-methoxy-5-chloro- or -carbamyl-anilines and 4-methoxy-3-amino-benzoylurea and the amines 2 - methylamino - 5 - methylsulphonamido- or allylsulphonamido- or -vinylsulphonamido- or -mono- or -di-(b -hydroxyethyl)-sulphonamido-or -morpholidosulphonyl-benzoic acid, 2-isobutylamino - 5 - methyl- or (b -hydroxyethyl)-sulphonamido-benzoic acid, 2-isopropylamino-5-methylsulphonamido- or di-(b -hydroxyethyl)-sulphonamido- or -N-methyl-N-(b -hydroxyethyl)amido-benzoic acid and 2-carboxymethylamino - 5 - methyl-sulphonamido- or -di-(b -hydroxyethyl)-sulphonamido- or -N-methyl-N-(b -hydroxyethyl)-sulphonamido-benzoic acid is specified. 2 - methylamino - 5 - methylsulphonamido-benzoic acid is prepared by reacting 2-chlorobenzoic acid-sulphonyl chloride with methylamine to form the sulphonamide and heating this with methylamine in an autoclave in the presence of copper salts.  The other amines specified above may be similarly prepared. Specification 821,926 is referred to.ALSO:Azo dyes are produced on the textile fibre by printing on the fibre a diazoamino compound of formula <FORM:0907817/IV (b)/1> wherein R is the radical of a diazo component free from sulphonic and carboxylic acid groups, R1 is an optionally substituted alkyl radical and R2 is an NH-alkyl, NH-hydroxyalkyl, N-(hydroxyalkyl)2, alkyl-N-hydroxyalkyl, NH-CH=CH2, NH-CH2-CH=CH2 or NX substituent wherein X is a bivalent 5-membered radical which completes a nitrogen-containing ring (see Group IV(b)), an azo coupling component and a thickening agent and developing the dyestuff solely by steaming with neutral steam.  Examples describe the production of various shades on cellulose fibres.  Specification 821,926 is referred to.
Patent GB-1095788-A (GB)
Title: Machine for building belted tyres
IPC: B29D30/26
Filed: 1965-09-30
Abstract: 1,095,788. Tyre-building machines. CONTINENTAL GUMMI-WERKE A.G. Sept 30, 1965 [Oct. 3, 1964], No. 41533/65. Heading B7C. In a tyre building machine, a transfer ring 3 is slidably mounted on a guide 7 for carrying an inextensible breaker and tread assembly from a drum 1 to a tyre building and shaping drum 2, each drum being mounted on a cantilevered shaft 4. In a modification (Fig. 2, not shown) the guide 7 is pivotable on a vertical axis (13) on the base 5 of the drum 2 to position the ring around either of two drums 1 whose axes are arranged symmetrically with respect to the axis of drum 2.
Patent GB-1131323-A (GB)
Title: Table tennis balls
Inventor: JONES-HINTON JAMES
IPC: B29C69/00
Filed: 1964-10-14
Abstract: 1,131,323. Table tennis balls. DUNLOP CO. Ltd. 6 Oct., 1965 [14 Oct., 1964], No. 41828/64. Heading A6D [Also in Division B5] A table tennis ball is made by deep drawing (see heading B5A) hemispheres in a sheet of thermoplastic material, superimposing two such sheets with the hemispheres located opposite one another and dielectrically welding the hemispheres together about their periphery. The balls thus formed are simultaneously severed from the excess material. As illustrated in the figure the butt weld is provided with an inwardly facing strengthening rib 5. Thermoplastic materials suitable for use are: P.V.C.; A.B.S. terpolymers; copolymers of diphenylol propane and epichlorohydrin; cellulose acetate; cellulose acetate butyrate; nylon; polycarbonate; or cellulose nitrate.
Patent GB-1183837-A (GB)
Title: Improvements in Bunkers, Silos and like Containers.
IPC: B65D88/64
Filed: 1967-09-14
Abstract: 1,183,837. Emptying a silo. LIFTAG HUB-, GLEIT-UND VORSPANNTECHNIK A.G. 14 Sept., 1967 [29 Sept., 1966], No. 41880/67. Heading B8S. A device secured within a silo 1 to facilitate the flow of material therethrough comprises an arcuate element 7 provided with a sloping surface 8 the element being mounted on transverse wall 15 secured within and across the silo.
Patent GB-960224-A (GB)
Title: Improvements relating to magnetic-recording apparatus
IPC: G11B5/52
Filed: 1960-12-06
Abstract: 960, 224. Feeding magnetic tapes; heads, spacing. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 6, 1960 [Dec. 9, 1959], No. 41981/60. Heading G5R. In a recorder in which one or more drummounted heads 3 scan oblique tracks on a tape 4, the tape tension and drum speed are related to entrap an air-cushion 5 and each head projects from the drum. A head-fairing 6 of smaller radius r in plan-form than the drum radius R and of increasing convexity in transverse section as seen in Fig. 3, is such that a thinner local air cushion is formed at the scanning point and a nearconstant head/tape spacing is maintained at all parts of the tape-width.
Patent GB-933575-A (GB)
Title: Improvements in or relating to time-signal transmission systems
IPC: G04R20/24
Filed: 1960-12-09
Abstract: 933,575. Clock systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 9, 1960 [Dec. 14, 1959], No. 42480/60. Class 139. In a synchronizing clock system a time signal transmitted from a transmitter T, e.g. a radio transmitter, is preceded by a sequence of signals, a predetermined number of which must be correctly received by a receiver if the synchronizing signal is to be effective. The transmitter includes a pulse generator KT and a shift register ST comprising a number of binary storage elements. The receiver comprises a first shift register SR of binary storage elements into which the received signals are fed. A second and similar shift register HR has transmitted to it the registration of the shift register SR and is so arranged that it automatically assumes the next expected registration. The two shift registers are repeatedly compared and each agreement is registered on a counter TS. When a predetermined number of agreements have been counted, the trigger circuit MS is operated and the transfer from register SR to register HR is stopped. The register HR continues to operate through a number of states corresponding to the transmitted signal to effect operation of a device UP which generates an output signal U at the same instant as the signal U is produced at the transmitter.
Patent GB-1280174-A (GB)
Title: Colour photographic sensitive materials
IPC: G03C7/333
Filed: 1969-08-26
Abstract: 1280174 Colour photographic material FUJI PHOTO FILM CO Ltd 26 Aug 1969 [26 Aug 1968] 42497/69 Heading G2C A colour photographic material comprises a supported silver halide emulsion containing (1) a coloured coupler of formula: (in which R is a substituted carbamoyl group having 5-30 C atoms, an acylamino group or a substituted benzimidazolyl-2 group; R<SP>1</SP> is an aryl or heterocyclic group; at least one of R and R<SP>1</SP> contains an 8-30 C hydrophobic group), and (2) a phenol or α-naphthol derivative substituted by an iodine atom para to the OH group and substituted by at least one 8-30 C hydrocarbyl group. Preferably (2) is of one of the formulae: (in which R 1  is substituted carbamoyl, acylamino or substituted benzimidazoyl-2 and contains a 8-30 C hydrophobic radical; R 2  is H, halo, nitro, carboxyl, sulpho, acylamino, optionally substituted carbamoyl, alkyl or alkoxy; R 3  is a acylamino or substituted carbamoyl and contains a 8-30 C hydrocarbyl group; R 4  and R 5  are each H, halo, alkyl or alkoxy).