baber/WOPTO huggingface dataset:
Patent GB-1059796-A (GB)
Title: Improvements in or relating to transistor circuitarrangements for producing a sawtooth current through a deflection coil
IPC: H03K4/72
Filed: 1964-11-11
Abstract: 1,059,796. Transistor saw-tooth generators. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 11, 1964 [Nov. 14, 1963], No. 45934/64. Heading H3T. In a transistor saw-tooth current generator, excessive voltage in the output circuit during the flyback period is prevented by slowing the rate of change of current during the first part of the period. In the Figure a sawtooth drive voltage is generated by charging capacitors C 1 , C 2  through a resistor R 3  during the stroke and discharging them during the flyback through a transistor 1, the sawtooth voltage being used to control the current in deflection coils Ld. At the end of thestroke the feedback through transformer 3, 4 renders transistor 1 conductive and resistor Rb is chosen such that while the charge is being built-up in the base region the current which flows in the base is insufficient to saturate the transistor. As the capacitor discharges the discharge current becomes less until collector emitter voltage falls to a value at which the transistor saturates whereupon the discharge rate increases to a value determined by the collector resistor Rc. Linearity is adjusted by a feedback resistor R 1 , the effective range of which is adjusted by R 5  and a further improvement in linearity may be obtained by connecting the upper end of resistor R 3  to the lower end of the transformer secondary 4. Synchronizing pulses may be applied at 7. Fig. 3 (not shown) is the circuit of non-free running circuit using transistors of the other conductivity type. It is stated that the capacitors C 1  and C 2  could be charged instead of discharged during the flyback and that an additional transistor stage could be inserted between those shown.
Patent GB-1079767-A (GB)
Title: Coated flavourings and preparation thereof
IPC: A23L27/23
Filed: 1964-11-11
Abstract: A granular coated flavouring comprises a nucleoside-51-phospate and a fat or fats of melting point 40-100 DEG C., the size of each granule being in the range 16-45 mesh (Tyler).  Other components such as sodium glutamate or table salt may also be present.  The product may be obtained by mixing the flavouring with the molten fat and spraying into a cool atmosphere, by mixing with a solution of the fat and evaporating, by spraying the fat on to the flavouring, either in a layer or suspended in air - or by painting.
Patent GB-1032217-A (GB)
Title: Arrangement for controlling a zone melting operation to be performed along the length of a semi-conduotor rod
IPC: C30B13/28
Filed: 1962-12-07
Abstract: In the passage of a molten zone 1a, (Fig. 1, not shown) produced by an induction coil 3, through a thin crystal seed 2 and an adjoining polycrystalline rod 1 with means 74 for stretching or compressing the molten zone, the diameter of the molten zone at the solidification boundary as measured by a coil 71 and the degree of heating by coil 3 are continuously controlled in accordance with a preset programme comprising a step-wise alteration of proposed diameter and degree of heating, the frequency of the alterations over a given length being dependent on the rate of charge in diameter.  Movement of coil 3 is effected by rotation in a non-rotary nut 4 carrying coil 3 of a spindle 5 having a cam disc 6 which effects transmission of a pulse in a control apparatus at regular intervals.  The pulses are divided into groups and the number utilized in each group depends on the degree of change to be effected (Figs. 2 and 3, not shown).  The resolidified portion of the rod is rotated.
Patent GB-1112257-A (GB)
Title: Necklace or bracelet
IPC: A44C5/22
Filed: 1965-11-03
Abstract: 1,112,257. Jewellery. MULLICK & WURZEL Ltd. 3 Nov., 1965 [21 Sept, 1965], No. 46523/65. Heading A3H. A bracelet comprises a band connected at one end to a tongue 4 fixed in one end of a hollow tube 2 and connected at the other end to a tongue 3 which extends adjustably into the other end of the tube. The tongue 3 has three recesses 10 one of which selectively engages a projection 9 on the tube. The band has an end slot 11 which engages the projection to limit the expansion of the bracelet. The upper surface of the tube may be ornamented or the like and the lower surface may be slotted.
Patent GB-1324121-A (GB)
Title: Method and apparatus for conditioning tobacco
IPC: A24B3/18
Filed: 1970-10-02
Abstract: 1324121 Conditioning tobacco RESEARCH CORP 2 Oct 1970 [15 Oct 1969] 46955/70 Heading A2C Tobacco is turgor conditioned to expand it by establishing a high vacuum around tobacco to remove air and water vapour from within the cells and intercellular spaces of the tobacco, supplying liquid water to the evacuated tobacco in amount effective to completely cover and surround the tobacco, and raising the ambient pressure (e.g. to atmospheric pressure) to drive the water rapidly into the cells and intercellular spaces of the tobacco. The tobacco is then freeze dried as described in Specification 1193557. A batch apparatus for turgor conditioning shredded tobacco is illustrates and includes an open-topped container, a perforated hold down screen for placing on top of the tobacco to prevent it floating in the container, connections through the cap to water and vacuum sources, and a connection to a valved vent to atmosphere through one side of the container near to its top. An automatic apparatus, which is also illustrated, provides for the automatic filling of a succession of containers with a weighted amount of tobacco and the transport in succession of the filled containers to a conditioning station where they are each closed in turn by a vacuum cap. The vacuum cap is raised and lowered electromagnetically, and includes: a hold down screen spacedly mounted to its underside; and valved connections to a vacuum supply, a metered water supply and to atmosphere, the valves being automatically actuated in the required sequence by an electric timer.
Patent GB-471819-A (GB)
Abstract: 471,819. Current, pressure, and resistance measurements. KABUSHIKI KAISHA HOKUSHIN DENKI SEISAKUSHO. March 12, 1936, No. 7471. Convention date, July, 15, 1935. [Class 37] A continuous-current measuring instrument has three movable coils 1 ... 3, two of which are wound on an iron core 4 located between polepieces N, S in a non-uniform permanent magnet field, the two coils 1, 2 being on different radii or in different planes and exerting a torque proportional to the ratio of the currents flowing in them. In a modification, the coils 1, 2 are wound on a ring core in diametrically opposite positions and the coil 3 is superposed on one or both of the coils 1, 2. In another modification, Fig. 3, one polepiece N is extended into a recess in the other polepiece S and the coils 1 ... 3 are arranged in radial planes on the ring extremity of one polepiece. The recessed polepiece may be arranged in a position at ninety degrees from that shown and the ring member has a tapered thickness, or the polepiece may be bifurcated. The coil 3 may be located in a separate uniform or nonuniform magnetic field. The instrument can be employed as part of a Wheatstone bridge for measuring resistance values, the coil 3 forming the galvanometer diagonal and the coils 1, 2 the ratio arms and the torques of the units 1, 2 and 3 may be additive. In another application Fig. 6, the coils 1, 2 are employed to control the torque of coil 3 and thus eliminate any error due to voltage variations of the source supplying the bridge. Instead of the parallel conections of coils 1, 2 they may be arranged in series across the bridge.
Patent GB-1183410-A (GB)
Title: Crimped Polypropylene Filaments
IPC: D01D5/30
Filed: 1967-10-17
Abstract: 1,183,410. Producing self-crimping polypropylene filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Oct., 1967 [19 Oct., 1966], No. 47257/67. Addition to 1,094,933. Heading B5B. A conjugate polypropylene filament or filamentary yarn has at least 58 crimps per inch, a denier per filament of not greater than 22, a "crimp contraction", a "stretch" and a "recovery" of at least 50, 75 and 40% respectively wherein the filament or each of the filaments of the yarn consists of two components having substantially the same intrinsic viscosity, e.g. having -intrinsic viscosities differing from one another by less than 0À1, preferably less than 0À05. The intrinsic viscosities are within the range 1À7 to 3À0, and different molecular weight distributions, distributed along the filament in side-by-side or sheath-core relationship. The dispersion coefficients, Q, of the two components may be between 2À5 and 20, the value of Q for the polymer having the higher dispersion coefficient being at least 4À0 and the difference between the Q values of the two components being at least 1À0. Conjugate filaments having all the properties specified above may be produced by conjugate melt spinning at 240- 320‹ C. two propylene polymers having the properties specified above to form a conjugate filament or filamentary yarn, drawing the spun filament or filamentary yarn at a draw ratio of 1À5 to 4À0 and a temperature not exceeding 100‹ C. and relaxing the drawn filament or filamentary yarn, optionally after fabrication into a textile article, at a temperature between room temperature and a value just below the melting point of the filament, yarn or article. The term "crimps per inch" is defined as the number of helical coils per inch of a given sample of bulked filament under zero stress, the filament having been caused to develop crimps by immersing it for 10 minutes in water at 100‹ C. and finally centrifuged dry. The terms "crimp contraction", "stretch" and "recovery" are defined. The intrinsic viscosity of the starting polymer components in the filament is measured in decalin solution at 135‹ C., the units of viscosity being expressed in decilitres per gram. The dispersion coefficient, Q, is defined as the ratio of the weight average molecular weight of a polymer to its number average molecular weight and expresses the molecular weight distribution of the polymer. The polypropylene used may be an isotactic homopolymer of propylene or a crystalline block copolymer of propylene with up to 20 mole per cent of ethylene.
Patent GB-1486100-A (GB)
Title: Load transmitting machine component
IPC: F16N1/00
Filed: 1975-11-17
Abstract: 1486100 Load-transmitting machine component KLOCKNER-HUMBOLDT-DEUTZ AG 17 Nov 1975 [18 March 1975] 47291/75 Heading F2A In a load-transmitting machine component such as a crank case 1 having a minor bore 3 which intersects a major bore 2, there is provided a shallow part-circumferential groove 4 inside the major bore, the groove following a curve having a smaller radius than that of the major bore so that its ends merge into the major bore, the minor bore breaking into the groove, and the width of the groove being between 0À95 and 1À05 times the diameter of the minor bore at the point of intersection. The notch effect of the minor bore is thereby moved from the surface of the major bore into the interior of the component. The minor bore may have an enlarged section 3a at its inner end.
Patent GB-1005350-A (GB)
Title: Sootless fuel injection engine
IPC: F02D23/00
Filed: 1963-12-02
Abstract: 1,005,350. Regulating I.C. engines. S. G. TIMONEY. Dec. 2, 1963, No. 47379/63. Heading F 1 B. In an I. C. engine in which an air charging pump d is driven from the engine power shaft f by a variable speed drive e and controlled so that the alteration of air charging rate preceeds the alteration of the fuel delivery rate, the fuel delivery rate is controlled in accordance with the air charge and/or speed of the air pump so that high rates of load application can be accepted without the production of soot in the engine exhaust gases. The drive e may be a variable V-belt drive and air pump d may be connected in series or parallel with a second air pump. The delivery rate of the fuel injection pump g is controlled in response to one or more air delivery parameters sensed by a pressure or flow responsive element k. The fuel injection pump may also be controlled by means of a damped or delayed response to a change in the air pump speed.
Patent GB-1288418-A (GB)
IPC: F24V30/00
Filed: 1969-09-26
Abstract: 1288418 Heating by chemical action PHILIPS GLOEILAMPENFABRIEKEN NV 26 Sept 1969 [30 Sept 1968] 47437/69 Heading F4X In a system wherein heat evolved from an exothermic reaction between a liquid metal mixture, e.g. Li and Ca, and an oxidant, e.g. SF 6 , is transferred to a working fluid flowing through the pipes 22, 25 of a heater 20, the liquid metal is circulated between a reaction vessel 1 and a container 5 by means of a pump 7 in such manner that the rate of flow of liquid in the reaction vessel is greater than in the concontainer 5. Salts formed in the vessel 1 as a result of the chemical reaction are carried with the liquid metal through outlet duct 6 into the container 5 where they are deposited due to the change of flow rate. "Salt free" liquid metal is then returned to the vessel by way of supply duct 8. A stirrer 18 ensures good liquid circulation around the heater pipes. An inert gas flow is supplied to the vessel from a container 10 to preclude liquid metal entering the oxidant supply ducts 4, the gas being returned to the container 10 by way of duct 14 and compressor 16. Partitions 32 are provided in the spare container 5. Heating devices 30, 31 serve to initally liquify the metal mixture. In an alternative embodiment (Fig. 2, not shown) the reaction vessel, which is in the form of an endless circulation duct (1) having a heat transmitting wall is, located inside the container (5) below the liquid level therein. Heat evolved from the reaction is transferred to a heat transporting medium, e.g. liquid NaK, flowing in a separate circuit (40, 41). The medium in turn then transfers its heat to the heater. In another modification (Fig. 3, not shown) the heater and reaction vessel arrangement of Fig. 1 is located inside the container.
Patent GB-1437235-A (GB)
Title: Catalytic oxidation or ammoxidation of alpha-olefins
IPC: B01J23/887
Filed: 1973-10-11
Abstract: 1437235 Oxidation and ammoxidation of olefines BASF AG 11 Oct 1973 [12 Oct 1972] 47470/73 Heading C2C [Also in Division B1] The gas phase oxidation or ammoxidation of α-olefins to α,#-unsaturated aldehydes or nitriles with O 2  in the presence of an inert gas and the presence or absence of steam at 280-450 C. is effected in the presence of an oxidic catalyst comprising Mo, Bi and minor amounts of one or more of In, Al, La or Ga. Preferred catalysts have the formula where Me<SP>1</SP> is In and/or Ga and/or La and/or Al, Me<SP>2</SP> is Fe and/or Cu, Me<SP>3</SP> is Ni and/or Co, Me<SP>4</SP> is one or more of P, B, As, Cr, V and W, Me<SP>5</SP> is one or more of Ag, Pb, Mn, Re, Sn, Ge, Sm, Nb, Ta, Mg, Ca, Sr, Ba and Be, a is 12, b is 0À1- 6, c is 0À005-3, d is 0À1-8, e is 0-16, f is 0- 6, g is 0-3 and h is 36-102. Examples prepare acrolein and methacrolein with some acrylic and methacrylic acids from propene and isobutene respectively and acrylonitrile from propene. Acrylic acid is prepared by a two stage process in which the reaction mixture containing acrolein from the above reaction is further oxidized to acrylic acid with a catalyst selective for this reaction.
Patent GB-1248447-A (GB)
Title: Improvements in or relating to keyboard operated machines
IPC: B41J5/24
Filed: 1968-10-08
Abstract: 1,248,447. Typewriters. INTERTIP A.G. ZWEIGNIEDERLASSUNG MUNCHEN. 8 Oct., 1968 [9 Oct., 1967], No. 47680/68. Heading B6F. A teaching typewriter has an electromagnetic control means for selectively releasing one or more keys which are usually locked. Each keylever 3 is movable between two guide blocks 2 and is prevented from doing so by the upper leg 7 of a [-shaped locking member 1. A spring 5 acting against the lower leg 16 normally biases the locking member into the blocking position. Associated with each key-lever is a control member 4, a pawl 22 and a control spring 21. The release of a particular key-lever is governed by five permutation bars 29-34, each movable to two positions under the control of their respective electromagnets 55 and return springs 55a. After movement of the bars according to a code, an electromagnet 25 is energized to rotate a lever 26 about its pivot. The bifurcated end 27 of the lever moves a rod 23a along a slot 24b, and with a rod 23b (movable in a slot 24a) moves all the pawls 22 mounted thereon to a position shown in broken lines. This allows the control springs 21 to drop and rest on the cams 28 on the permutation bars 29-34, except for one or more selected springs 21 which drop further between the cams 28 to the position shown in broken lines. Continued movement of the pawls 22 causes one or more of them to engage the projections 45 of the selected control springs 21, which are propelled forward to engage and displace the control members 4 of the selected key-levers. This causes the selected control members 4 to engage the lower legs 16 of the locking members 1, and withdraw the upper legs 7 into the guide blocks 2 thereby releasing the selected key-levers. The selected control members 4 are latched by the edge 15 of a rail 13 engaging recesses 14. An electromagnet 17, when energized, rotates the rail 13 against the bias of spring 19 to release the selected control members 4, which return to their initial position under the influence of springs 12. If only one key-lever 3 is to be depressed at a time, a switch is provided to operate electromagnet 17, which switch is actuated by depressing the previously programmed key-lever. All the key-levers 3 can be released manually with a lever 10 rotating a cam 8 clockwise, which moves all the control members 4 to the latched position. Combined with audio/visual apparatus.-The letter associated with each key-lever appears on a screen and can at the same time additionally be pronounced by a loud-speaker.
Patent GB-1281048-A (GB)
Title: Improvements in single-control carburettors for internal combustion engines
IPC: F02M17/04
Filed: 1969-09-29
Abstract: 1281048 Spray carburetters GURTNER S A 29 Sept 1969 [1 Oct 1968] 47690/69 Heading F1B In a carburetter which includes a pumping membrane 3, Fig.2, responsive to variations in engine crank-case pressure, a mixture-controlling throttle valve 24 is connected to an air strangler 33 so that both the strangler and the throttle valve are controllable by a single operation of a control member to permit sequential operation of the various carburetter functions, the strangler being detent-positioned while the engine is running or stopped. Fuel drawn through tube 5 passes via valve 7, chamber (9), Fig.4 (not shown), passage (23), jet (22), chamber 19, passages (17, 18) into the main bore 10. Throttle shaft 25 is rigid with a control arm 27, Fig.1 connected to an engine speed regulating means and loaded towards the throttle opened position by a spring 29. The angular movements of strangler 33 are controlled by a knob (35), Fig.7 (not shown), which is set to positions I, S, G, R, A marked on a dial (36). The strangler 33 is in toothed engagement with a quadrant 42 carrying an adjustable spring-loaded projection 55 which engages a projection 28 on arm 27. Operation: Injection 'I': A projection of strangler 33 engages a spring-loaded push rod (57) Fig.6 (not shown), which acts through a lever (62) on membrane 3 to open valve 7. Starting 'S': The strangler 33 is in detentpositioned in position 67s Fig. 5 (not shown) in which push rod 57 is ingenerative and throttle valve 24 is open . Full throttle 'G': The strangler is held by the detent in the full line position of Fig. 5 (not shown), and throttle valve 24 is fully open. Idling 'R': The strangler is held in position 33R, Fig.5 (not shown), and the movement of quadrant 43 partially closes the throttle valve 24. Stop 'A': The strangler is held in position 33A to open the air duct and the throttle valve 24 is closed. In a modification a fixing screw (14), Fig.4 (not shown), is replaced by the spring-loading of the carburetter against an engine induction pipe. The detent locking means may act on cable 50.
Patent GB-1273013-A (GB)
Title: Improvements in or relating to laser diodes
IPC: H01S5/32
Filed: 1969-09-29
Abstract: 1,273,013. Lasers. SIEMENS A.G. 29 Sept., 1969 [30 Sept., 1968], No. 47756/69. Heading H1C. [Also in Division G1] In a PN junction diode crystal laser the junction extends between two end faces of the crystal which form the laser cavity and are formed as portions of two confocal spherical or cylindrical surfaces generally perpendicular to the junction. In the embodiment of Fig. 1 the PN junction 2 of GaAs crystal 1 runs in a radial direction between end surfaces 3, 4 forming portions of two confocal spherical surfaces, surface 3 being wholly reflective and surface 4 partially reflective so that a focused output is produced at F. If the surfaces 3, 4 are part of two cylindrical surfaces, Fig, 2 (not shown), the output is focused to a narrow strip. Massive contact members may be positioned on surfaces 5, 6 to provide electrical connection and dissipate heat Fig. 3 (not shown). By attaching photodiodes to the surfaces 5, 6 so that they extend therefrom the device may be used to measure surface roughness, Fig. 4 (not shown), see Division G1. If surface 4 is wholly reflective and surface 3 partially reflective a divergent beam is obtained.
Patent GB-1277955-A (GB)
Title: Liquid cooled dynamoelectric machines
Inventor: INAGAKI JUNPEI
IPC: H02K9/197
Filed: 1969-09-30
Abstract: 1277955 Cooling dynamo-electric machines TOKYO SHIBAURA ELECTRIC CO Ltd 30 Sept 1969 [1 Oct 1968 (5)] 47991/69 Heading H2A In a liquid cooled dynamo-electric machine, e.g. motor, comprising a stator A carrying a main winding 3, and a motor B, a non-magnetic cylindrical shielding member 32 at least partially surrounds the rotor and has its opposite ends fixed in a liquid tight manner to stationary members of the machine, and means e.g. nozzles 4a, 4b spray cooling, liquid e.g. oil on high temperature portions of the stator e.g. the end turns of winding 3. The member 32 may be of laminated glass cloth impregnated with epoxide resin and comprise either the single piece shown, which may be longitudinally slit (Fig. 4) to permit it to grip the stator bore or, (Fig. 1), two pieces connected to respective core end plates (31). At its outer ends the member(s) 32 are sealed to housings 25a, 25b. containing field coils 24a, 24b and through which a coolant liquid circulated from conduits 5a, 5b. The rotor comprises interdigitated polepieces 13 whose intervening gaps are filled with resin or cast Al. and which are mounted on respective shafts 11a, 11b mutually coupled by a non-magnetic shaft 12.
Patent GB-1049180-A (GB)
Title: Improvements in soil excavating apparatus
Inventor: WALKER MATTHEW PATON
IPC: E02F3/42
Filed: 1964-11-27
Abstract: 1,049,180. Shovelling machines. BROWN BROS. & CO. Ltd. Aug. 17, 1965 [Nov. 27, 1964], No. 48260/64. Heading E1F. The mounting means for a vertically swing- able, implement-carrying boom on a vertically swingable, tractor mountable frame such as disclosed in the referred to Specification 785,585 comprises a turret casing having a closed off head, being preferably of frusto conical shape, and co-axially mounted on for rotation about a support integral with the frame. Secured in and dependent from the head of the turret is a shaft to which can be applied a turret-swinging drive of the type disclosed in the referred to Specification 984,052. Horizontal pivotal bearings for the boom and an actuating ram associated therewith are provided on the head and on the side of the turret.
Patent GB-952045-A (GB)
Title: Anthraquinone dyestuffs
IPC: D06P1/20
Filed: 1962-12-21
Abstract: The invention comprises dyes of the formula <FORM:0952045/C3/1> wherein R is alkyl or hydroxyalkyl, X is halogen, alkyl, alkoxy or hydroxy-alkoxy and n is 0, 1, 2 or 3, which are made by reacting a 1-amino-2-halo -4 - hydroxy - anthraquinone with an alkylmercaptophenol in the presence of a strongly alkaline compound. Examples are given.  The dyes dye linear polyesters in red shades from aqueous dispersion.