baber/WOPTO huggingface dataset:
Patent GB-194697-A (GB)
Title: Motor with extra cooling of the air or mixture respectively before compression of same in the working cylinder
IPC: F02B1/00
Filed: 1923-03-05
Abstract: 194,697. Hult, O. W. March 7, 1922, [Convention date]. Valve-gear.-In a two-stroke engine, compressed air is admitted to the combustion chamber through the valve L after the cylinder has been scavenged by air compressed in the crank case. The main exhaust outlet is through terminal ports G; there is an additional valve-controlled exhaust port, which is held open during the up-stroke of the piston, and while the compressed charge from the receiver is entering the combustion chamber. The valves I, L controlling the exhaust and charge inlet are worked from one cam, an extension M on the valve I striking the valve lever N. Reference has been directed by the Comptroller to Specification 10425/03.
Patent GB-762209-A (GB)
Title: Improvements relating to electric cables and protective coverings therefor
Inventor: MILDNER RAYMOND CHARLES
IPC: H01B7/28
Filed: 1954-03-04
Abstract: 762,209. Cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd. March 3, 1955 [March 4, 1954], No. 6396/54. Class 36. A metal cable sheath is covered with a conductive rubber, guttapercha or plastic composition having a resistivity of between 10,000 ohms cm. and 3 ohms cm. The covering may comprise a polyvinylchloride compound loaded with 30 to 60 parts by weight of carbon black to 100 parts of compound, or polythene loaded with carbon black.
Patent GB-1414256-A (GB)
Title: Mine roof support beams
IPC: E21D23/04
Filed: 1973-02-09
Abstract: 1414256 Roof beams for advancing supports COAL INDUSTRY (PATENTS) Ltd 6 Feb 1974 [9 Feb 1973] 6436/73 Heading E1P A roof beam 10 for an advancing mine roof support is provided with a resilient canopy 12 surmounted by runners 14 adapted to slide along the roof during advance. The canopy 12 may be made of conveyor belting be secured by belts 13 and overlie the goaf shield 7. Holes are provided in the canopy 12 to accommodate cantilever extensions 11 and each runner has a hook at its leading end to engage the beam 10.
Patent GB-200140-A (GB)
Title: Improvements in or relating to carburetters for internalcombustion engines
IPC: F02M9/02
Filed: 1922-03-06
Abstract: 200,140. Brown & Barlow, Ltd., and Brown, C. March 6, 1922. Addition to 160,215. Spray carburettors.-The parent Specification describes a carburettor in which rich mixture, produced in a chamber k, is admitted direct from a groove c to the. main air in a mixing chamber a formed in a eliding throttle valve b, the amount of rich mixture being regulated by the groove according to the position of the valve. According to the present invention, the delivery of mixture to the chamber a is through a peripheral groove g and a series of radial passages i, or through a perforated diametral pipe. The fuel supply may be controlled by a needle valve f.
Patent GB-952486-A (GB)
Title: Improvements in or relating to roller mechanism, e.g. for printing machines
IPC: B41F13/28
Filed: 1961-02-22
Abstract: 952,486. Cylinder tripping; rotary printing machines. MONOTYPE CORPORATION Ltd., and J. H. WILLIAMS. Feb. 12, 1962 [Feb. 22, 1961], No. 6545/61. Heading B6C. [Also in Division F2] Eccentrically mounted plate and impression cylinders A,. C are simultaneously tripped from a transfer cylinder B through rocking the shafts D, F of the cylinders A, C, by a cam actuated mechanism comprising arms D<SP>3</SP>, F3, secured to the respective shafts, and pivotally mounted adjustable length rod and lever systems O, Q and PR. The cam means engaging the followers Q2, R<SP>2</SP> forming part of the rod-and-lever systems may be automatically operated, such operation deriving from the machine drive. The latter comprises a driven gear (not shown) engaging a double gear element N rotatably mounted on the shaft F and simultaneously driving through the teeth of a gear J and internal teeth on a gear-wheel L secured to the cylinder C, the transfer and impression cylinders B, C. The gear J transmits the drive to the cylinder A through a double gear element M rotatably mounted on the shaft D and having teeth M<SP>2</SP> meshing with internal teeth on a gear-wheel K secured to the cylinder A. By adjusting the lengths of the rods O, P through screw and thread arrangements O<SP>1</SP>, 02 and P<SP>1</SP>, P<SP>2</SP> the cylinders A and C may be moved independently relative to the transfer cylinder B.
Patent GB-858299-A (GB)
Title: Improvements in and relating to automatic frequency control circuits
Inventor: ROZNER FELIX
IPC: H04N5/06
Filed: 1958-02-28
Abstract: 858,299. Automatic frequency and phase control systems. FERGUSON RADIO CORPORATION Ltd. Feb. 19, 1959 [Feb. 28, 1958], No. 6600/58. Class 40(5). [Also in Group XXXVI] Two trains of pulses are maintained of equal frequency and phase by applying them to a binary 'slip' counter chain B1-B6 whose stepwave output on a rail 35 measures the frequency difference and is of polarity determined by a bi-stable phase comparator RR developing rectangular gating voltages A, B, applied to open either the set of gates G21-G61 or G22-G62 such that only when two successive pulses of one train precede a pulse of the other train is an output due to the second pulse derived from gates G11 or G12 and applied to the counter chain at B1. Depending on which train is the faster the average output across resistors RX1- RX6 on rail 35 is positive or negative and may be applied through a buffer stage 36 and transistor emitter-follower E/F to a variable reactance valve controlling a master oscillator MO from which, through a buffer stage 29 and frequency divider 12, and differentiator-buffer stage D/B the pulse train to be controlled is derived. The other pulses (a) may be a reference train derived from a sinusoidal reference e.g. mains frequency input at 25, through an" integrator-buffer stage I/B, squaring circuit 27 and differentiator-buffer stage 28. The outputs at 30, 31 may be the line and frame pulses of a television transmitter. In addition a fraction of the output phase of comparator RR of maximum value just less than the 'unit' output from RXI may be applied through resistor Rf to the integer analogue output on rail 35 to effect phase synchronism and avoid hunting between two frequency levels of unit separation. An anti-phase output through C, R<SP>1</SP>f, on rail 33, balances out the A.C. output from resistor Rf, or a low pass filter may be used for the phase control output. A detector-buffer stage 38 causes gate G12 to remain closed on any failure of reference frequency pulses (a) and prevents any further local pulses operating the counter, or change in master oscillator freqeuncy. Gates G7, G8 provide 'end stops' for the counter to prevent it being reset from end to end of limits of the reference frequency range. The phase comparator and counters may be of transistor bi-stable type as described in Specification 821,945. The gates G21, G22 &c. may be back-biased semi-conductor diodes.
Patent GB-286693-A (GB)
Title: Improvements in or relating to systems of protection and control for electrical distribution systems
IPC: H02H7/16
Filed: 1928-03-02
Abstract: 286,693. British Thomson-Houston Co., Ltd., (Assignees of Belt, T. A. E.). March 9, 1927, [Convention date]. Systems depending on static transformers; transmission lines.-The series connected condenser 7, Fig. 1, of a transmission line 3, as described in Specification 284,624, is protected against excess voltage due to overload conditions on the line by a spark gap 8, 9 connected across the terminals of the condenser. On the occurrence of a spark, the alternating current flowing through coils 24, 25 of a device as described in Specification 266,359, [Class 37, Electricity, Measuring &c.], allows direct current to flow from bus bars 19, 20 to a coil 22 of a quick acting circuit-maker 12, of the type described in Specification 125,279, [Class 38 (v), Electric switches &c.], and trips this circuit-maker in the manner described in Specification 187,993, [Class 38 (v), Electric sivitches &c.]. This circuit-maker closes a short circuit across the spark-gap and so protects the condenser. When line conditions become normal again, the current in a coil 39 decreases sufficiently to allow contacts 41 to close and energize a resetting coil 15. Upon resetting of the circuitmaker 12, contacts 43 are closed to energize coil 40 and thus reopen contacts 41. Should the condenser 7 break down, the normal ratio of current therethrough and voltage thereacross is disturbed, and contact 35 close so as to energize another trip coil 23 of the circuitmaker, which thereupon closes to prevent further damage to the condenser. In another arrangement, Fig. 2, the condenser 7 is connected in series relation to the line 3 through a transformer 44 that saturates on overload conditions and so prevents excess voltage being applied to the condenser. After cessation of the abnormal line current distortion persists and this is corrected by removing a short circuit from a resistance 45 in series with the condenser. The distortion causes a change in the ratio of current through and voltage across the transformer 44 and thus causes contacts 55 to lift and trip a quick-acting circuit-breaker 47 which opens the short circuit. When the distortion ceases, the contacts 55 drop and complete a resetting circuit for the breaker 47, which breaks the resetting circuit at contacts 58 when it closes its main contacts.
Patent GB-722438-A (GB)
Title: Improvements in or relating to cross-bar multi-switches
IPC: H01H67/26
Filed: 1952-03-14
Abstract: 722,438. Electric selectors. STANDARD TELEPHONES & CABLES, Ltd. March 14, 1952 [April 13, 1951], No. 6638/52. Class 40 (4). A multiple electric switch comprises two sets of parallel conductors mutually perpendicular, contact fingers being movable perpendicularly to both sets of conductors to bridge the crossing points, and is characterized in that the conductors of one set are used as intermediate conductors between the other set and a third set of conductors. The multiple switch comprises several individual switches stacked one on top of another, two inlets comprising sets of terminals such as P81b and P85a being provided on each individual switch, only one of which is shown in the drawings. The outlet conductors such as 975, 985 pass vertically through insulated plates 1006 supporting the intermediate conductors 81b, 82b . . . 85a. Each intermediate conductor has a number of spring contact extensions such as 897-985 and 893-945 for establishing connection to the associated outlet conductors, and also a spring contact extension such as 8b1 for establishing connection with the associated inlet terminal. A connection through the multiple switch is effected in four steps by selection of (1) a pair of outlets; (2) the a or the b group of inlets; (3) one inlet; (4) one outlet. A pair of adjacent outlets is selected by displacement of one or more code bars CB1-CB5, Fig. 10, controlled by magnets, and the downward movement of bar H. That yoke 1042 which registers with a line of apertures 1043-1047 in the code bars falls and engages a hook 1049 over a projection 1050 on the bar H, which then pulls down the yoke and its associated vertical bar V to depress fingers 1016 into slots 1011 of a stack of horizontal bars such as H8, one of each zontal bars. The inlet is then selected by the choice of one horizontal bar 48 and the final selection of outlet is made according to whether the bar moves in direction f1 or f<1>1 to swing member 1015 and move finger F897-100 in direction f2 or f<1>2 to move the contact extensions 899-1001 to 897-985 into engagement with the selected outlet conductors and extensions such as 8b1 or 8a5 into engagement with the desired inlet conductors. After operation of the horizontal bar H8, the other selecting mechanism can be released, the connection individual switch. The a or b group of inlets is selected by energization of a magnet to displace vertical bar VA or VB (not shown) to engage fingers 1025 in the slots of the horibeing held by friction. At release, the fingers such as F887-100 return under the action of self-centring springs 1029. Specifications 644,553, [Group XXXVII], and 662,784, are referred to.
Patent GB-408090-A (GB)
Title: Improvements in shock absorber control
IPC: B60G17/08
Filed: 1933-03-06
Abstract: 408,090. Shock-absorbers. LOGAN, H. H., 6107, Newburg Avenue, Chicago, U.S.A. March 6, 1933, No. 6747. Convention date, March 4, 1932. [Class 108 (iii).] In a shock-absorber system including a plurality of double-acting shock-absorbers and means for effecting hydraulic control thereof, the said means is arranged to permit individual control from a central position of each shockabsorber and to permit opposite movements of each shock-absorber to be controlled independently. In one form, levers 19 actuate vanes 15 co-operating with fixed abutments 14 and situated in casings 11. Corresponding chambers thus formed by the vanes and abutments are connected through pipes 40<a>, 41<a>. The pipe 41<a> is connected through a pipe 41 with a chamber 26 and the pipe 40<a> through a pipe 40 with a chamber 27. Fluid can flow, when the vehicle frame and axle approach, from the chamber 26 past manually-adjustable valve 30 and non-return valve 36 to the chamber 27 and consequently to the pipe 40. Similarly when the vehicle frame and axle separate, fluid can pass from the chamber 27 to the chamber 26 past manually-adjustable valve 31 and non- return valve 35. A chamber 25 is connected by a non-return valve 34 with the chamber 26. When applied to all four shock-absorbers of a vehicle the front pair are connected to the chambers 49, 50, Fig. 5, and the rear pair to the chambers 47 48, the adjustable valves 57 being under the control of the vehicle driver and being provided with pointers which move over a graduated scale. The valve 57 includes a tapered spindle held in place by a helical spring and having a circumferential groove of varying depth extending around part of its surface. The shock-absorbers may be of the double-ended piston type.
Patent GB-872695-A (GB)
Title: Method and apparatus for vacuum casting
IPC: C21C7/10
Filed: 1958-03-03
Abstract: 872,695. Casting machines. UNITED STATES STEEL CORPORATION. March 3, 1958 [April 10, 1957], No. 6801/58. Class 83 (1). In a method of vacuum casting a mould 24 is placed in a chamber 2 evacuated to a pressure less than 0.5 mm. of mercury, and a stream of molten metal delivered into said chamber, the pressure in said chamber causing the stream to be degasified and violently diverge into small droplets, which are confined and reformed into a stream and directed into said mould. The confining means consists of a collar 54 having a refractory insert 52. In a modification the chamber contains a number of moulds bottompoured from a central sprue. Alternatively the moulds may be mounted on a rotating table and brought in turn under the pouring stream.
Patent GB-551978-A (GB)
Title: Improvements in or relating to remote control systems
IPC: H02J13/00
Filed: 1941-05-28
Abstract: 551,978. Signalling over power circuits. NEWTON, E. P. (Telefonaktiebolaget L. M. Ericsson). May 28, 1941, No. 6865. [A Specification was laid open to inspection under Sect 91 of the Acts, Oct. 20, 1941.] [Class 40 (iv)] Signalling over power mains is effected with the aid of voltageresponsive receivers and transmitters which raise the peak voltage of the supply without correspondingly raising its R.M.S. value. For example, the transmitter may insert a D.C. source in the neutral wire of a 3-phase supply system or an A.C. source in the neutral wire of a 3-wire D.C. supply system. In other arrangements, the rise in peak voltage is produced by increasing the amplitude of the third harmonic in the supply current. This may be done, Fig. 4 (not shown), by connecting the secondary of a transformer of which the primary is in the neutral wire to the respective phases through saturable chokes. In a modification of this arrangement Fig. 5, the signalling contact r1 alternatively causes the saturation of the chokes and the saturation of the transformer to reduce the impedance of the neutral wire. In another arrangement, dry rectifiers are used instead of chokes for distorting the wave form and in another, a three-phase grid-controlled mercury rectifier is used. Transmission may be in part over a high-voltage section of the network, signals being received and repeated over a low voltage section at a transformer station. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which an auto-transformer TS, Fig. 6 (Cancelled), charges a condenser C at each half cycle in a particular direction until the difference between the secondary voltage and the supply voltage exceeds the flash voltage of a discharge tube Gs, whereupon the condenser discharges and causes a surge in the supply system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1002872-A (GB)
Title: Axial piston hydraulic pump or motor
IPC: F01B3/00
Filed: 1964-02-19
Abstract: 1,002,872. Hydraulic reciprocating pumps. UNIPAI A.G. Feb. 19, 1964 [March 1, 1963], No. 6950/64. Heading F1A. In a rotary cylinder hydraulic pump or motor, opposed pistons 6, 7 in cylinders 5 act on plates 3, 16 which have surfaces 14, 15 of fixed inclination to the axis of rotation. The plate 16 is adjustable about the rotational axis to vary the effective displacement of the pistons in the cylinders. A gear train 48, 49, 55, 51 couples the plate 16 and a valve plate 38 for rotation via sleeves 46, 47 and a support 29. The gear ratios are such that the valve plate 38 rotates at half the rate of the plate 16, to ensure that the cylinder ports are approximately between the ports 44, 45 in the valve plate 38 at the ends of the piston strokes. The hydraulic pressure in the bores within which are located the sleeves 46, 47 ensures contact between the valve plate 38 and the cylinder block 4. In an alternative embodiment a pintle valve may replace the face valve or in the case of a pump only, non-return valves may be used.
Patent GB-1038511-A (GB)
Title: Tobacco smoke filter
IPC: A24D3/08
Filed: 1963-02-21
Abstract: 1,038,511. Tobacco smoke filters. A SCHNYDER. Feb. 21, 1963 [Feb. 27, 1962], No. 7073/63. Heading A2C. A tobacco smoke filter is made from two portions 2 and 4, one of which, 4, is permeable to smoke, and the other of which, 2, is impermeable to smoke, the total effective cross-sectional area of the impermeable portion 2 being at least 40% of the crosssectional area of the filter. The permeable portion 4, e.g. cellulosic fibrous material, may be sandwiched between the impermeable portions 2, e.g. tissue paper. The layers of material may be folded upon themselves to form a rod of filter material. In a second embodiment (Figs. 4-7, not shown) the filter is composed of agglomerated, woven or twisted fibres which are adhered to similar material which has been rendered impervious. The impervious portions may be arranged around the periphery of the filter and/or in the centre thereof. In a third embodiment (Figs. 8 and 9, not shown) the filter is formed of expanded synthetic resin which is compressed around the peripheries of the filter to form an impervious portion. In a further embodiment (Figs 10 and 11, not shown) the filter is composed of a foamy complex which contains a number of closed, impervious cells, uniformly distributed throughout. The filter may also be made from homogenous mixtures of permeable cellular pre-formed elements and non- cellular impervious elements such as fragments of cellulosic materials, wood chips, sawdust, cork granules, lint or kapok.
Patent GB-1103805-A (GB)
Title: Improvements in or relating to can piercing devices
Inventor: CAMPOLINI GUERINO
IPC: B67B7/50
Filed: 1966-02-17
Abstract: 1,103,805. Can-piercing devices. COLDSTREAM ENGINEERING Ltd. 15 Feb., 1967 [17 Feb., 1966], No. 7121/66. Heading B8D. A can-piercing device having a back plate 10 which may be fixed to a wall, includes a pivotally mounted piercer head 15 with inner and outer piercer elements 38, 39, and ledges 20-22 on which different sized cans may be rested during the piercing operation. When a can is rested on one of the ledges against a strap 14 fixed to the plate 10, a pouring opening and vent opening are formed by the members 38, 39 respectively, as the piercer head 15 is lowered.
Patent GB-826375-A (GB)
Title: New dyeing process
IPC: C09B62/04
Filed: 1956-03-07
Abstract: Silk or superpolyamide textiles are dyed with an aqueous solution of a water-soluble azo or anthraquinone dyestuff containing a 4 : 6-di-halogeno-s-triazinyl-amino group and at least one ionogenic solubilizing group, e.g. a sulphonic or carboxylic group.  Suitable dyestuffs are those described in Specifications 772,030, 774,925, 781,930, 785,120, 785,222, 797,946 and 826,405 and also the azo compound obtained by coupling diazotized aniline with 1-(4 : 6-dichloro - s - triazinyl - 2 - amino -) 8 - hydroxynaphthalene-3 : 6-disulphonic acid.  Dyeing is effected in aqueous baths containing ammonium acetate or sulphate, if desired, with the addition of acid, at 95 DEG  C. to the boil.  In examples the dyestuffs employed are (1) the condensation product of cyanuric chloride with the aminoazo compound obtained by coupling diazotized 2-naphthylamine-4 : 8-disulphonic acid with m-toluidine; (2) that obtained by coupling diazotized orthanilic acid with 1-(4 : 6-dichloro-s-triazinyl - 2 - amino -) 8 - hydroxynaphthalene-3 : 6-disulphonic acid; (3) the condensation product of cyanuric chloride with 1-amino-2 : 5-disulpho - 4 - [41 - amino - 31 - sulpho] - anilinoanthraquinone; and (4) that obtained by coupling diazotized aniline with 1-(4 : 6-dichloro-s-triazinyl - 2 - amino -) 8 - hydroxynaphthalene-3 : 6-disulphonic acid.  A list of other dyestuffs is given.
Patent GB-826634-A (GB)
Title: Improvements in or relating to electrolytic reduction cells for the production of aluminium
Inventor: RANSLEY CHARLES ERIC
IPC: C25C3/16
Filed: 1955-03-10
Abstract: 826,634. Fused electrolyte apparatus. BRITISH ALUMINIUM CO. Ltd. March 9, 1956 [March 10, 1955], No. 7135/55. Drawings to Specification. Class 41. An electrolytic cell for producing aluminium by reduction has a current-conducting element which is in contact over at least part of its surface with molten aluminium and has at least that part largely composed of at least one of the materials of the group consisting of the carbides and borides of titanium and zirconium, and a flux bath containing sodium chloride, e.g. from 10 to 30% by weight of the weight of the bath. The phrase " largely composed of ... titanium and zirconium " means that the part in question is composed of at least 90% by weight of one or more of the materials specified. In specific embodiments, the elements are sintered titanium carbide cathode leads which enter the magnesite base of the cell horizontally or vertically, the cell constructions being the same as some of those described in Specification 802,905. Specifications 784,695, 784,696, 802,471 and 826,635 also are referred to.
Patent GB-818146-A (GB)
Title: Improvements in or relating to high frequency dielectric heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H04B1/03
Filed: 1956-03-07
Abstract: 818,146. Capacitors. RADIO HEATERS Ltd. March 6, 1957 [March 7, 1956], No. 7201/56. Class 37. [Also in Group XL (c)] In an oscillator construction suitable for high-frequency dielectric heating equipment (see Group XL (c)) the blocking condenser between the tank circuit and one of the valve electrodes extends round at least the major part of the valve circumference and has a liquid dielectric. In the embodiment described the condenser consists of a cylindrical bronze shell 12 in contact with the valve anode connection 11 and an outer cylindrical aluminium shell 14. The space between the shells is filled with silicone fluid dielectric retained by top and bottom sealing rings of silicone-bonded glass provided with silicone rubber gaskets. The upper sealing ring is provided with a filler plug and the space between the shells is increased both at the top and bottom to provide a longer track path. Specification 767,326, [Group XL (c)], is referred to.