baber/WOPTO huggingface dataset:
Patent GB-1043231-A (GB)
Title: Improved wired broadcasting systems and apparatus therefor
Inventor: QUINTO KENNETH CHARLES
IPC: H04N11/14
Filed: 1962-05-30
Abstract: 1,043,231. Television distribution systems. COMMUNICATIONS PATENTS Ltd. May 10, 1963 [May 30, 1962], No. 20749/62. Heading H4R. In a colour television distribution system over which a modulated carrier wave brightness information signal and a suppressed carrier wave colour information signal are transmitted, the frequencies of the carrier waves differ from each other by an odd multiple of half the line scanning frequency whereby the visible effects of beating between these carriers or harmonics thereof are reduced. As described broadcast television transmissions in the 625- line N.T.S.C. colour television system are received by a receiver 9 and the two component signals of such a transmission, viz. brightness (which includes synchronization signals and colour burst signals, i.e. signals which provide information regarding the suppressed carrier frequency of the colour signals) and colour information signals are applied to a modulator 12. A crystal controlled oscillator 13 provides a highly stable carrier wave signal so that the brightness signal can be modulated on to a harmonic of the carrier wave which is a whole number multiple of the line scanning frequency and the colour signal can be transmitted as a double side-band carrier suppressed signal, the difference in frequency of the transmitted and suppressed carriers being equal to an odd multiple of half the line-scanning frequency. These signals are transmitted over one pair of lines 1 of the distribution network, a similar set of signals in respect of another transmission being passed over the wires 2. Either transmission may be selected at a receiver 3 or 5 (Fig. 3, not shown) wherein the signals are demodulated and after suitable processing applied to a television picture tube. The sound accompaniment of the picture is transmitted as audio frequency signals over the network.
Patent GB-234337-A (GB)
Title: Improved means for securing tyres to the felloes or rims of wheels
IPC: B60B25/20
Filed: 1924-09-24
Abstract: 234,337. Sheils, H. Sept. 24, 1924. Tyre attachments to rims. - In wheel rims of the kind comprising a detachable, flange 4 secured by transvense bolts 5, the detachable flange is provided centrally of its depth with projections 4a which enter recesses in the side of the felloe. The flange, may be strengthened by stays radiating from a ring adapted to fit over the hub. Detachable dust caps 6 may be provided to protect the bolt heads.
Patent GB-1083448-A (GB)
Title: Trolleys for travelling overhead hoists
IPC: B66C7/00
Filed: 1966-05-11
Abstract: 1,083,448. Overhead travelling cranes. DEMAG-ZUG G.m.b.H. May 11, 1966 [May 14, 1965], No. 20847/66. Heading B8B. A trolley 2a, 2b, which supports a hoist 6 from the bottom flange 1a of a girder 1 is driven along the girder by a friction wheel 7 resiliently urged against the underside of the bottom flange by a spring 15. Horizontally disposed guide pulleys 4 are provided. A driving motor (8), Fig. 2 (not shown), and transmission gearing (9) are disposed coaxially with and on opposite sides of the friction wheel. Control elements and a counterweight are housed in a box (16).
Patent GB-1570270-A (GB)
Title: Process for expanding tobacco
IPC: A24B3/18
Filed: 1978-05-19
Abstract: The tobacco is impregnated with liquid carbon dioxide, then treated in order to convert the liquid carbon dioxide to solid carbon dioxide, and then expanded by evaporation of the solid carbon dioxide, the moisture content of the tobacco used, the pressure of the liquid carbon dioxide in the impregnation stage and the final humidity of the expanded tobacco being controlled relative to each other and excess liquid carbon dioxide being removed from the impregnated tobacco before the conversion to solid carbon dioxide. The method can be carried out simply and without expensive equipment, and permits a high degree of expansion without introducing foreign constituents into the tobacco and without influencing the flavour.
Patent GB-896255-A (GB)
Title: Production of naphthalene polycarboxylic acids and their anhydrides
Filed: 1958-06-30
Abstract: Naphthalene polycarboxylic acids or their anhydrides are prepared by contacting acenaphthene or a substituted acenaphthene having one or more nuclear aliphatic substituents of from 1 to 4 carbon atoms, in the liquid phase at an elevated temperature with molecular oxygen-containing gas in the presence of a catalyst system comprising a heavy metal oxidation catalyst and bromine until the oxygen content of the gases in contact with the reaction mixture is essentially constant and thereafter further contacting the reaction mixture with a further quantity of molecular oxygen for a further period of 0.5 to 4 hours.  The reaction is preferably carried out in a carboxylic acid solvent medium, preferably acetic acid.  Specified heavy metal catalysts are bismuth, lead, copper, vanadium, tin, chromium, cerium molybdenum and preferably, manganese and cobalt.  The bromine may be used as such, in the form of an inorganic bromide or an organic bromine-containing compound.  Specified substituted acenaphthenes include compounds wherein the aliphatic substituent is attached to two different nuclear carbon atoms, e.g. bi-acenaphthene and periacenaphthen-indandione which gives naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid on oxidation.  In examples a mixture of acenaphthene and glacial acetic acid was oxidised with air using cobalt acetate, manganese acetate and ammonium bromide as catalyst at 400 DEG F. and 400 p.s.i.g. to give naphthalic anhydride.
Patent GB-1496177-A (GB)
Title: Transistor amplifiers
IPC: H03F1/30
Filed: 1975-05-16
Abstract: 1496177 Transistor amplifier SONY CORP 16 May 1975 [21 May 1974] 20907/75 Heading H3T In a transistor amplifier using a triode-like FET having one output terminal connected via a load to a reference level and the other to a D.C. supply, the D.C. bias current is stabilized against fluctuations in the supply by feeding the FET gate from a transistor output terminal connected via an impedance to another supply, the other transistor output terminal going to a reference point: the voltage of the transistor supply is controlled from the FET supply to ensure stabilization, the signal being injected at the input to the transistor. In a single ended push-pull class AB or B amplifier feeding a load at 7 via complementary triode-like FET's Q 1 , Q 2 , (preferably constructed according to Figs. 1, 2, not shown) with sources supplied at  V 2 , the gates are fed from the collectors of transistors Q 3 , Q 4 , themselves taking signals from preamplifier 5, fed by input signal at 6 and Iy negative feedback via resistor R 9 . The supplies  V,' to the transistors Q 3 , Q 4  are dropped from  V 1  by current through resistors R 10 , R 11  controlled via transistors Q 11 , Q 12  to respond to fluctuations of  V 2 , the variations appearing in  V 1 <SP>1</SP> being (1 + 1/Á) times those of  V 2 , where Á is the voltage amplification factor of the appropriate FET. The current through Q 3 , Q 4  and the FET bias current are both adjusted by variable resistor VR1 controlling the fraction of the D.C. drop across diode chain Dl which appears between the bases of transistors Q 3 , Q 4 . In the voltage control circuits X1, X2 in which resistor chains R 12 , R 13  and R 14 , R 15  and Zener diodes D 2 , D 3  control the level of  V 1 <SP>1</SP> further from ground than  V 2  and the ratio of the fluctuations of  V 1 <SP>1</SP> and  V 2 ; the resistors R 10 , R 11  may be replaced by transistors (Fig. 8, not shown), allowing higher utilization of power supplies  V 1 . In both embodiments R 12 /R 13  and R 14 /R 15  are made equal to the appropriate 1/U.
Patent GB-795999-A (GB)
Title: Removal of volatile ingredients from thermoplastic polymers
IPC: C08F6/10
Filed: 1956-07-05
Abstract: Vaporizable organic ingredients or impurities are separated from mixtures with non-volatile vinylidene polymers without contaminating the polymer with dark-coloured products, by heating at less than 270 DEG  C. in a vessel in which the portions that are contacted with the vapours are composed of or coated with aluminium or a metal composition containing aluminium as the principal ingredient and free of metals higher than magnesium in the electromotive series.  A suitable devolatilizer comprises a jacketed kettle 1, with a valved inlet 3 for the polymer composition leading to a perforated cup 4, which permits the composition to fall as thin streams.  An optional valved inlet 8 for inert gas, a valved vapour outlet 11 leading to a pump, and a bottom outlet 14 for the molten polymer leading to an extruder are also fitted.  Thermoplastic vinyl aromatic resins, e.g. polystyrene, polyvinyl toluene polymers of ar-chlorostyrene, <PICT:0795999/III/1> polyethylene and copolymers of styrene with acrylonitrile and styrene with butadiene may be heated.ALSO:<PICT:0795999/IV (a)/1> Vaporizable organic ingredients or impurities are separated from mixtures with non-volatile vinylidene polymers without contaminating the polymer with dark-coloured products by heating at less than 270 DEG  C. in a vessel in which portions that are contacted with the vapours are composed of or coated with aluminium or a metal composition containing aluminium as the principal ingredient and free of metals higher than magnesium in the electromotive series.  Vinyl aromatic resins, e.g. polystyrene, polyvinyl toluene, polymers of ar-chlorostyrene, polyethylene and copolymers of styrene with acrylonitrile and styrene with butadiene may be treated.  A suitable devolatilizer is described (see Group III).
Patent GB-1368052-A (GB)
Title: 3-substituted-5-hydroxy/mercapto/alkylidene-rhodanine drivatives
IPC: C07D277/36
Filed: 1973-05-03
Abstract: 1368052 Rhodanines SMITHKLINE CORP 3 May 1973 [18 May 1972] 21064/73 Heading C2C Novel compounds (I) wherein: R is lower alkyl of from 1 to 4 carbon atoms, straight or branched chain, cycloalkyl of from 3 to 6 carbon atoms, alkenyl of from 3 to 5 carbon atoms, phenyl, phenylalkyl of from 7 to 9 carbon atoms, monohalophenyl, dichlorophenyl, alkylphenyl, methylchlorophenyl or pyridylmethyl; R 1  is lower alkyl of from 1 to 4 carbon atoms, phenylalkyl of from 7 to 9 carbon atoms, said alkyl moieties being straight or branched chain, monochlorobenzyl or monomethylbenzyl; and Y is oxygen or sulphur; are made by reacting compounds (II) (obtained by standard methods) with an orthoester in acetic anhydride and either hydrolysing the compounds (III) so obtained or treating them sequentially with sodium sulphide in aqueous ethanol and acid. Pharmaceutical preparations showing antiarthritic action contain (I) as active ingredient; administration is orally or parenterally.
Patent GB-1070954-A (GB)
Title: Transducer apparatus for measuring variations in a physical variable
IPC: G01L11/00
Filed: 1964-05-21
Abstract: 1,070,954. Measuring apparatus using  radiation sensitive devices. INDUSTRIAL NUCLEONICS CORPORATION. May 21, 1964 [May 27, 1963], No. 21115/64. Heading G1A. Transducer apparatus for measuring variations in a physical variable includes means for effecting changes in the amount of radiation from a radioactive source reflected back to a detector in accordance with the variations. In one embodiment a radio-active source 28 mounted in a screening block 30 radiates towards a diaphragm 40. Energy reflected (or possibly back-scattered) from the diaphragm passes through a plurality of apertures 38 in a disc 32 supporting block 30 and falls on ionization chamber 34. The electrical output of the detector develops a voltage across resistor 44 which is amplified and indicated on meter 12. Movement of diaphragm 40 in accordance with the physical variable to be measured will produce a corresponding indication at 12. Figure 1 shows the diaphragm being flexed in accordance with fluid pressure applied through tube 10 to bellows 14 whose free end makes contact with the diaphragm via ball 20. The bellows end of the apparatus may be unscrewed at 24 and replaced by diaphragm control means sensitive to other variables, for example a rod coupling for displacement, a flexibly mounted mass for acceleration or a bi-metallic strip for temperature Fig. 3 (not shown). In a modification a plurality of detectors are placed one opposite each window 38 and their outputs combined in pulse form. A pulse clipper is used to remove pulses below a certain amplitude and the remainder shaped, differentiated and applied to a counter which is reset at the end of successive equal units of time.
Patent GB-980930-A (GB)
Title: Change-speed drive arrangement, particularly for motor vehicles
IPC: F16H3/091
Filed: 1962-06-01
Abstract: 980,930. Change-speed gear; positive clutches. FORD MOTOR CO. Ltd. June 1, 1962 [June 13, 1961], No. 21171/62. Headings F2C and F2D. [Also in Division B7] Change-speed gearing for a motor vehicle comprises an input shaft 14, Fig. 1, driven by the vehicle engine through the usual main clutch, coupled through a releasable spline connection 96 to a gear 86 journalled upon a driven sleeve 82 fast with an output pinion 16 surrounding the input shaft, the gear 86 meshing a gear of a countershaft cluster 104 and balk-ring synchromesh clutches 132, 162 being selectively engaged to establish first or second, and third or fourth, respectively, of four forward ratios. Reverse is established by sliding a pinion, Fig. 9 (not shown), into mesh with teeth 172 on the selector sleeve of the clutch 162 while the latter is in the neutral position shown. Each synchromesh clutch comprises an internally frusto-conically surfaced ring 128 &c. frictionally mounted upon a supporting gear hub and provided with peripheral balking teeth, axially slidable bars 133 within the associated selector sleeve 132 engaging the balk ring with its associated gear hub prior to synchronism, and during clutch engagement, teeth within the selector sleeve then engaging clutch teeth 122 on the gear hub. The gear-case 12 supports bearings 30, 32 at both sides of the output pinion and has an end cap 94 which can be taken off to allow access to a retainer 100 which, when removed, allows the input shaft 14 to be withdrawn axially through the output pinion 16 for maintenance of the main clutch. The output pinion 16 meshes a crown wheel 44, Fig. 8, of a bevel gear differential having its output shafts 76, 78 connected through universal joints to road wheels of the vehicle. The bevel planets 70 of the differential are mounted upon a shaft 72 provided with a circumferential groove engaged by a cross-pin 74 to hold the shaft within the differential housing. The selector sleeves 132, 162 and the reverse pinion are controlled through the usual forks by three shift rods 198, 218, 240, Figs. 6, 7, retained in position by spring-biased detents 270, 272, 254. Simultaneous establishment of more than one ratio is prevented by drift pins 271, 273 engaging notches 284 &c. in the shift rods in the usual way, an additional drift pin 286 passing through the shift rail 218 abutting the two drift pins 271, 273 so that when the rod 198 is slidden to one or other of its ratio established positions, the drift pin 271 is forced out of the notch 284 and all three drift pins are moved axially, the drift pin 273 engaging a notch 278 in the reverse shift rod 240 thus prevented from sliding. Conversely, when the reverse shift rod 240 is slidden to establish reverse, the drift pin 271 is forced into the notch 284 in the shift rod 198 which therefore cannot be slidden to establish first or second.
Patent GB-401446-A (GB)
Title: Improvements in and relating to screens for optical projection
IPC: G03B21/60
Filed: 1933-05-05
Abstract: 401,446. Projection screens. MAHONEY, H. C., 194, Silverleigh Road, Thornton Heath, Surrey. May 5, 1933, No. 21174/32. [Class 97 (i).] In laterally curved screens having their concave surfaces to the observers, the depth of the curve CD, measured at the top or bottom of the screen has a value between 1/6 and 1/5 of the width AB. The screen may be made of textile material carried by lacings on a frame comprising wooden uprights connected by upper and lower rods or tubes of metal ; alternatively it may be of sheet metal. The curvature of the screen may vary at different parts of its surface.
Patent GB-695922-A (GB)
Title: Method and apparatus for the manufacture of electrical distribution boards
IPC: B05D1/18
Filed: 1951-09-07
Abstract: A liquid composition which hardens on heating comprises 37 per cent of a vinyl resin such as vinyl chloride or a copolymer of vinyl chloride and vinyl acetate, 24 per cent of a resinous plasticizer such as polybasic acid-polyhydric alcohol esters and styrene polymers, 19 per cent of a chemical plasticizer such as dioctyl, dibutyl and dihexyl phthalates, 9 per cent of a stabilizer such as lead stearate, lead silicate, antimony oxide, lead phosphate, blue lead or mixtures thereof, and 11 per cent of a filler such as calcium carbonate.
Patent GB-1044311-A (GB)
Title: A new or improved method of processing oil-containing sewage
IPC: B01D17/04
Filed: 1963-05-28
Abstract: Oil-containing sludges, produced by metal hydroxide precipitation of oil-bearing sewage, are acidified with a mineral acid to a pH less than 6, mixed and heated.  The practically anhydrous oil phase is withdrawn after settling and may be used as a fuel.ALSO:Oil containing sludges produced by a metal hydroxide precipitation cycle are thickened and then separated into two phases at pH less than 6 by acidification with mineral acids, mixing and heating.  The practically anhydrous oil phase is withdrawn and may be used as a fuel whilst the acid aqueous phase is returned to the precipitation cycle.  Solid constituents may be settled and withdrawn separately. Sedimentation of the initial sludge may be improved by polyelectrolytes.
Patent GB-354961-A (GB)
Title: Improvement in sheet paper feeding machines
IPC: B65H3/08
Filed: 1930-07-14
Abstract: 354,961. Feeding sheets. LILJEBLADH, E. H., 20, Folkungagatan, Gothenburg, Sweden. July 14, 1930, No. 21239. Convention date, Jan. 20. [Class 100 (i).] Sheet separators and carriers.- Sheets are fed from a pile to the grippers of a printing-press in overlapped condition by means of tapes 38 passing over rollers 37 coacting with rollers 34, and the sheets are separated from the pile by the combined action of a rising-and-falling suction separator 3 and a suction separator 21 carried by an oscillating arm 20 which drops on to the pile soon after the separator 3 has raised the top sheet. An air blast device directs a current of air below the top sheet, and after the separator 21 engages the sheet, the slide 5 in which the separator 21 is mounted is moved to the right and the feeding off of the separated sheet is assisted by the motion of the previously separated sheet since the separators 3, 21 are timed to act before the previously separated sheet is free of the pile. The slide 5 is U-shaped and is guided by a circular rod 4 and a T-shaped rod 7. It is reciprocated by a link 16 and a lever 28 oscillated by a cam 32. The link 16 is clamped to an arm 14 pivoted to a pin 13 which engages one of two shoulders 17, 18 on the slide 5 depending on the direction of motion of the link 16. The pin 13 connects two levers 12 on a pivot 10 on which the arm 20 is mounted, and the arm 20 is thus raised so as to bring the separator 21 out of contact with the sheet, after it has moved over the pile for a certain distance, and the separator 21 is only returned to the pile after it has completed its movement to the left. The separator 21 is connected by a tube 22 to a suction conduit, and it is pivotally mounted on the arm 20.
Patent GB-203322-A (GB)
Title: Improvements in or relating to electric meters
IPC: G01R11/40
Filed: 1923-08-22
Abstract: 203,322. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Ratz, E. G.). Sept. 2, 1922, [Convention date]. Polyphase meters.-A supply meter is adapted to measure the energy consumed on a polyphase circuit or on a single-phase circuit derived therefrom, or on both circuits simultaneously. In the arrangement shown, three-phase conductors 9, 10, 11 are supplied through a transformer 1 having primary windings 2, 3 and secondary windings 7, 8. A standard two-element energy meter 12 has the current coils 13, 14 connected in the conductors 9, 11 and the pressure coils 15, 16 connected across the mains 9, 10 and 10, 11. In order to enable the meter to register the energy suppied to a three -conductor system comprising the mains 10, 11 and an auxiliary conductor 117 connected to an intermediate point on the secondary winding 8, an auxiliary current coil 18 is provided in the meter 12 and connected in the conductor 17. The ratio of the number of turns in the coil 18 to the number in the coil 14 is the same as the ratio of the number of turns of the transformer winding between the conductors 10, 17 to that between the conductors 10, 11. The instrument may be adjusted by varying the number of turns in the coil 18 relatively to the coil 14 to correspond to different tap points of the conductor 17.
Patent GB-1431418-A (GB)
Title: Calenders
IPC: D06C15/08
Filed: 1974-05-14
Abstract: 1431418 Rollers MASCHINENFABRIK BRIEM-HENGLER & CRONEMEYER KG 14 May 1974 [25 May 1973] 21292/74 Heading F2U A calender roll comprises a non-rotating metal core 5 and a tubular covering 8 of plastics material having an internal diameter greater than the external diameter of the core 5. A lubricant may be provided in the crescentshaped clearance 9 between core and covering. The ends of covering 8 have covers 11 and seals 13 so that the lubricant may be under pressure and circulated by a pump to cool the roll. The covering 8 is rotated by contact with a coacting driving roll 14, which drive may be supplemented by gears secured to covering 8 and roll 14, one at each end of each.
Patent GB-605335-A (GB)
Title: Improvements in metallic churns and butter kneaders
IPC: A01J15/04
Filed: 1945-08-21
Abstract: 605,335. Mixing-machines. ECREMEUSES MELOTTE, SOC. ANON. Aug. 21, 1945, No. 21337. Convention date, July 20, 1944. [Class 86] A metallic churn and butter kneader rotatable about a horizontal axis comprises a main body formed by three walls or sides each of which has a profile with a cylindrical curve. The body is formed of sheet metal bent to form three walls each comprising a cylindrically curved portion 7, Fig. 4, adjoining a plane portion 13, and is closed at the ends by sheet metal walls 9, Fig. 3, provided with trunnions. The charging and discharging opening extends along the whole length of the churn between the edges 2, 2, and is provided with a sheet metal cover 8, Fig. 6, bent with the same curvature as that of the cycloidal portions 7.
Patent GB-1262217-A (GB)
Title: Magnetic bobbin seater device for a spindle
IPC: D01H7/16
Filed: 1970-05-04
Abstract: 1,262,217. Mounting bobbins on spindles. SPRING MILLS Inc. 4 May, 1970, No. 21416/ 70. Heading DID. A bobbin 18 is supported on a spindle 10 by a seat 20 enclosing a magnetic band 22 which attracts a metal ring 28 carried on the lower end of the bobbin 18. The seat 20 comprises a collar 38 of non-magnetic material, the magnetic band 22 having inner and outer magnetic poles and a steel sleeve 24. The seat 20 thereby provides a magnetic circuit passing through the bobbin and spindle which locates the bobbin on the spindle. There may be a synthetic resin layer 40 on the sleeve 24.
Patent GB-587423-A (GB)
Title: An electrode or contact housing for neon tubes
IPC: H01R33/02
Filed: 1944-11-02
Abstract: 587,423. Lamp-holders. DENNING, S., and RUDDY CO., Ltd., E. L. Nov. 2, 1944, No. 21487. [Class 38 (i)] A contact housing for neon-tubes comprises an insulating body 10, e.g. of porcelain, with recesses for contact springs 15 for the end-caps 17 of the tubes 14, and has a projecting wall 12 which has arcuate tube-supporting surfaces 13 perpendicular to the recesses. The springs are mounted in individual recesses or alternatively a pair of electrically connected springs lie in a single recess to connect the adjacent ends of a pair of tubes in series, Figs. 3, 4 (not shown). The tubes are detachably fastened in the supports by hooks 20.