baber/WOPTO huggingface dataset:
Patent GB-1100994-A (GB)
Title: Shoe sole of rubber material
IPC: A43B13/12
Filed: 1966-05-25
Abstract: 1,100,994. Boots &c. DR. ING. FUNCK KOMM.-GES. 25 May 1966 [25 May, 1965], No. 23359/66. Heading A3B. A resilient sole e.g. of rubber of thermoplastic material which is suitable for sticking directly to the bottom of a lasted upper consists of a tread layer 2 and vertical side walls 5 which have, at their upper edges, two attachment flanges 6, 7 by means of which the sole is adhered to the lasting margin 8 of the shoe upper O. The hollow space defined by tread layer 4, side walls 5 and flange 6 is filled in the ball region, with a cushion 9 of highly elastic rubber or a light plastics foam, the cushion 9 extending above the level of the flange 6 by an amount H<SP>1</SP> corresponding to the thickness H of the lasting margin 8. The outer attachment flange 7 may be extended so that it covers part of the side of the upper O. As described the sole forms part of a combined sole and heel unit, the heel and shank portions having a base layer, side walls and attachment flanges, the hollow spaces being reinforced by vertical ribs (14).
Patent GB-693120-A (GB)
Title: Improvements in or relating to transistors
IPC: H03F1/02
Filed: 1950-09-25
Abstract: 693,120. Semi-conductor amplifiers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 25, 1950 [Sept. 28, 1949; Oct. 7, 1949], No. 23430/50. Class 40 (iv). [Also in Group XL (c)] A transistor has one of its point contact electrodes anodically conductive (i.e. more current flows when the electrode is positive than when it is negative relative to the semi-conductor) and the other point contact electrodes cathodically conductive (i.e. more current flows when the electrode is negative than when it is positive), the amplification factor for current variations being positive. The current amplification factor is the ratio of output (" collector ") current variation consequent on input (" emitter ") current variation, current from the electrode to the semi-conductor in each case being regarded as positive. In the normal transistor circuit with emitter and collector electrodes biased in opposite sense current variations are such that the amplification factor is negative. In an arrangement according to the invention the input electrode or the emitter is biased in the same sense relative to the semiconductor as the collector or output electrode, one being anodically and one cathodically conductive, which is achieved by arranging for one electrode to contact a portion of the semiconductor of N-type conductivity, and the other to contact a neighbouring portion of P-type conductivity. Fig. 2 shows such an arrangement having base electrode 2, emitter electrode 3 and collector electrode 4 with input terminals 6 and output terminals 8. It is explained that an electrode may be conductive in one sense (anodically or cathodically) at very low voltages and in the opposite sense at higher voltages. An arrangement in which the emitter in a normal transistor arrangement is biased by a very small voltage in the same sense as the collector but which provides a negative amplification factor is acknowledged as known. The arrangement according to the invention provides hig amplification and the inherent feed-back is small and negative.
Patent GB-1261824-A (GB)
Title: Hot water storage units
Inventor: FORD THOMAS
IPC: F24D3/08
Filed: 1968-08-27
Abstract: 1,261,824. Heating water. RANGE BOILERS Ltd. 8 May, 1969 [27 Aug., 1968], No. 23466/69. Divided out of 1,248,043. Heading F4A. In a hot water storage unit of the kind having a hot water storage vessel 3 of a secondary circuit containing "secondary" water and a heat exchanger 9 of a primary circuit containing "primary" water, the heat exchanger 9 comprises spaced apart inner and outer walls 12, 13 defining an annular heat exchange space 14 of the primary circuit, and a partition 19 so as to allow secondary water into a space 20 but preventing mixing with the primary water, the outer wall 13 having an extension 17 defining a water expansion chamber 18 in direct communication with atmosphere to allow venting of air during filling of the primary circuit and after filling, allowing for increase in volume of the primary water during heating, the heat exchanger also including a feed at least part of which is located above its inlet and outlet 26, 27 to provide an air trap allowing water to flow into the exchanger but containing air to prevent return flow of primary water from the heat exchanger to the source of its supply.
Patent GB-1090247-A (GB)
Title: Improvements in or relating to mine roof supporting devices
Inventor: GREENSMITH RONALD LEIVERS
IPC: E21D23/04
Filed: 1965-06-02
Abstract: 1,090,247. Advancing mine roof supports. BONSER ENGINEERING Ltd. May 20, 1966 [June 2, 1965], No. 23522/65. Heading E1E. In an advancing mine roof support assembly comprising a frame 1, 2, 3, 4, 8 16 adapted to be advanced by a jack 7 connected to a conveyor 10, the jack is also connected by a link 5 to one of the props-such as 3-in order to displace the assembly from the vertical on retraction of the jack 7.
Patent GB-186594-A (GB)
Title: Improved packing for shafts
IPC: F16J15/28
Filed: 1922-08-31
Abstract: 186,594. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Hodgkinson, F.). Sept. 30, 1921, [Convention datel. Packing, metallic; packing, non-metallic; packing, removable casings, containers, or carriers for; connected to source of high or low pressure.. -A rotary turbine or other shaft is packed by hollow conical split rings 15 arranged base to base, the end surfaces of the rings being at rightangles. to the shaft. The rings are forced against the shaft and the wall of the stuffing-box by the axial pressure of the gland and the box may have a soft-metal lining against which the outer edges of the packing abut. The packing may be divided into groups, by a ring 16, which may have a passage 17 communicating with a passage 14 for the supply or exhaust of fluid. The rings 15 may be of an alloy of lead, tin, and antimony, or of bronze, or of fibre or other non-metallic material.
Patent GB-379849-A (GB)
Title: Improvements in or relating to means for amplifying the currents of photo-electric cells
IPC: H01J40/14
Filed: 1931-08-24
Abstract: 379,849. Controlling apparatus by light. FALKENTHAL, E., 11, Humboldstrasse, Dahlem, Berlin. Aug. 24, 1931, No. 23718. Convention date, Aug. 26, 1930. [Class 40 (v).] The input circuit of an amplifier, for example the grid circuit of a thermionic valve v, is coupled to a light-sensitive cell Z having an internal resistance less than 5,000 ohms and consisting of a thin light-sensitive layer between a metallic base plate and a translucent conducting layer, which form the cell electrodes. The cell and valve are coupled by a transformer t with a primary p and secondary s matched to the cell resistance and grid-cathode resistance respectively. An alternating component is imposed on the photoelectric current by an interrupter a in the cell circuit, or by periodically interrupting the incident light, or by illuminating the cell from a thin-filament lamp fed from alternating-current mains. In the last case, the general illumination of the room may be daylight or other steady light. The transformer is tuned to the frequency of the pulsations. According to modifications, the cell damps the oscillating circuit, or a circuit coupled with it, Fig. 3 (not shown), of a backcoupled valve with the indicator or relay e in its anode circuit, Fig. 2 (not shown).
Patent GB-651938-A (GB)
Title: Improvements in or relating to stands for vessels containing hot liquids
IPC: A47J36/34
Filed: 1948-09-10
Abstract: 651,938. Teapots &c. LAND, T., and LAND & SON, Ltd., T. Sept. 10, 1948, No. 23834. [Class 66] [Also in Group XIV] A tea-pot, coffee-pot &c. is provided with a stand in the form of a heat-insulating moulded plastic, annular base 1 in which a metal ring 2 is secured during moulding, the protruding part 2a of the ring being secured to the teapot &c. as by soldering or brazing. Part 2a may be shaped to fit the bottom of the tea-pot &c. The ring 2 may have a bead 3 or perforations enabling it to be keyed into the base 1.
Patent GB-1270032-A (GB)
Title: Loudspeaker
IPC: H04R7/02
Filed: 1969-05-09
Abstract: 1,270,032. Diaphragms; moving coil loudspeakers. NIPPON GAKKI SEIZO K.K. 9 May, 1969 [19 Nov., 1968 (2)], No. 23875/69. Addition to 1,270,033. Heading H4J. A loudspeaker includes a rigid self-supporting diaphragm 91 (Fig. 1) of foamed plastics material secured at its periphery to a speaker frame 92 to generate sound by bending motion. Soft material 97 (e.g. foamed or unfoamed rubber or rubber-like material) having a specific gravity in the range 0À10 to 1À25 is applied, the diaphragm 9 at the periphery and has sufficient mass to prevent harmonics of the resonant frequency of the diaphragm 91 from being developed in the frequency range of about 70 to 150 Hz. The soft material 97 has an inner periphery of serrated form as shown or of sinuous form, or has a tapered surface of gradually decreasing thickness towards the centre of the diaphragm. The diaphragm may be of asymmetric shape. The diaphragm is preferably of foamed polystyrene of specific gravity 0À02 to 0À20. The total weight of soft material is 20 to 200% of the total weight of the diaphragm e.g. 100%.
Patent GB-692582-A (GB)
Title: Darts game
IPC: A63F9/02
Filed: 1950-10-02
Abstract: 692,582. Dart games. ELLIOTT, A. Dec. 31, 1951. [Ocb. 2, 1950] No. 24008/50. Class 132 (ii). Apparatus for playing a darts game comprises a dart-board 1 marked as shown with squares 2 having designations 1, 2, X and verbal instructions, a set of darts, a roulette wheel 3 on a stand 5 having an index 6 and having designations to correspond with those on the board, a similar roulette wheel divided into three sectors marked 1, 2, X and a pack of cards denoting hazards or awards. In play, players are allotted a ticket from a numbered sequence and a banker draws numbers and the players play in the so selected order by spinning the wheel 3 and throwing. at the board 1 to try to attain the appropriate designation. Unsuccessful players are eliminated. Byes to succeeding rounds can be attained. In the final round, matters are made more difficult by using the second roulette wheel. One or both of the wheels may be replaced by dice. The squares on the board may be coloured.
Patent GB-1235786-A (GB)
Title: Method of preparing resistive films
IPC: H01B1/00
Filed: 1969-05-12
Abstract: 1,235,786. Resistive films. BENDIX CORP. 12 May, 1969 [4 June, 1968], No. 24097/69. Heading H1S. A method of preparing resistive films on a (glass) substrate 10 comprises vacuum depositing a first SiO coat 11; vacuum depositing to a predetermined sheet resistivity, a metal (e.g. Ni or Cr) film 14 which can react with SiO to form substances with higher resistivities than the metal; vacuum depositing a second SiO coat 16 over the metal film 14; and heattreating the resistive film so produced. Cr-Au terminals 12A, 12B are laid with the metal film. The resistance of the film is monitored and deposition is halted when the sheet resistivity is still above 6000 ohms per square for Ni, or 100,000 ohms per square for Cr. During the heat treatment the resistivity of the film rises due to reactions with the Si and 0; reactions with the atmosphere and substrate being prevented by the SiO layers 11, 16. The film may be heat-treated at a constant temperature between 206-400‹ C. for more than 30 minutes. Alternatively, comparison of the film resistance with a standard resistance may be used to increase the temperature until the film resistance reaches the desired value; or the film may be heated by D.C. current whilst its resistance is compared with a standard resistance in an A.C. bridge, the D.C. current being decreased as the bridge approaches a balanced state. Finally, the resistors are stabilized in air for at least 24 hours.
Patent GB-1500683-A (GB)
Title: Apparatus for classifying sources of noise
IPC: G01H3/12
Filed: 1971-04-19
Abstract: 1500683 Measuring parameters of sound FRIED KRUPP GmbH ATLAS-ELEKTRONIK BREMEN 19 April 1971 [19 Feb 1970] 24105/71 Heading G1G The noise produced by an aircraft is detected and analysed to indicate the craft identity. Each vehicle generates a characteristic, or basic, noise spectrum, caused by the driving and auxiliary engines, wheels, propeller or nozzle. A further auxiliary noise is produced which is due to the vehicle operating conditions, and separation of the basic and auxiliary noises is effected by a Fourier transformation producing frequency dependent terms. The separated basic noise from the detected aircraft is compared with the stored versions of basic noises from aircraft of known identities. Following Fourier operation, the signals are applied to a logarithmic circuit which provides the arithmetic sum of the logarithmic functions of the terms representing the basic and auxiliary noises. If there is no stored noise corresponding to the received basic noise, the latter is stored and coded.
Patent GB-226872-A (GB)
Title: Improvements in signalling devices for use upon railways and the like
IPC: B61L3/04
Filed: 1924-06-26
Abstract: 226,872. Harrison, A. June 26, 1924. T r a c k apparatus actuating signals on trains.-Apparatus for giving warning on a train when a signal is passed at danger, comprises an arm 1 at the side of the track normally in the vertical danger position and rotatable into horizontal position, its position being preferably controlled by connection with the mechanism of the usual semaphore signal 20 as shown. The arm 1 in its vertical position is in the path of an arm 3<a>, Fig. 2, carried by the train, and serves to rotate a shaft 3 having a gear wheel 5 meshing with a wheel 6 on a horizontal shaft provided with an arm 8, which in turn has a pin-and-slot connection with a lever 9 pivoted at 10. This lever serves to slide a bar 11 provided with an upstanding arm 15 which closes an alarm circuit, either directly, or as shown, by operating a switch arm 17. The alarm may be a bell 18 or lamp 19 and warning may be given on different parts of the train, as in the engine cab and guard's van. A weight 14 serves to hold the lever 9 against accidental displacement from either of its extreme positions. The weight may be omitted or replaced by a spring, or the bar 11 may be moved to switchclosing position against the action of a returning- spring, and retained by a pawl and ratchet.
Patent GB-277381-A (GB)
Title: Improvements in or relating to pressure reducing valves and the like
IPC: F16K25/00
Filed: 1927-02-16
Abstract: 277,381. Coles, T. Feb. 16, 1926, [Convention date]. Materials, special. - The valve member and spindle of a pressure regulating valve is constructed of an alloy consisting substantially of 72 per cent of nickel, 1.5 per cent of iron and 26.5 per cent of copper rolled forged and annealed to restore its fibrous qualities, and the seat is constructed from an alloy consisting substantially of 75 per cent of copper and 25 per cent of zinc treated in a bath of molten solder to increase its density. The solder bath may consist of two parts of tin and one part of lead with a melting point about 260‹ or 1 part of tin and 3 parts of lead with a melting point about 500‹. The alloy for the valve member may consist of 66.50 per cent of nickel, 2.69 per cent of iron and 30.24 per cent of copper. The valve is forged at at least 1550‹ F., then immediately cooled by the use of a cold air current. Specification 266,355 is referred to.
Patent GB-1269853-A (GB)
Title: A magazine for storing tape cassettes
IPC: G11B15/68
Filed: 1969-05-12
Abstract: 1,269,853. Cassette machines. MATSUSHITA ELECTRIC INDUSTRIAL CO., Ltd 12 May, 1969 [10 May, 1968; 13 May, 1968 (2)], No. 24126/69. Heading G5R. A magazine for cassettes comprises a frame open at two opposed sides to allow passage of the cassettes through the magazine when cassette retainers are released. The retainers are either spring-loaded catches 26 individual to each cassette or spring-loaded plates (72, Fig. 6, not shown) common to all the cassettes. As shown, the magazine is driven by pinions 52 to position the cassettes successively above an opening through which they pass to a play station, the catches 26 being automatically released by rollers 56.
Patent GB-720286-A (GB)
IPC: E06C7/08
Abstract: 720,286. Ladders. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. Oct. 16, 1951 [Nov. 22, 1950], No. 24159/51. Addition to 711,035. Class 20 (2). The extensible ladder described in the parent Specification is modified in that the upper part 5 of each metal side member is formed as a channel directed towards the neutral zone A-B, the outer edge 6 being bent inwardly towards the neutral zone. The channel 5 is joined by a horizontal portion 7 to the vertical web 3, the portion 7 serving as a runner rail for the supporting rollers of the next ladder sections. Specification 635,225 is referred to.
Patent GB-518230-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/04
Filed: 1938-08-17
Abstract: 518,230. Making electrolytic condensers. BROWN, S. G. Aug. 17, 1938, Nos. 24211 and 34006. [Class 37] [Also in Group XXII] An electrode for an electrolytic condenser is made by finely corrugating, for example, to a depth of 0.015 inch, a strip of thin filming metal, such as aluminium 0.001 inch thick, and thereafter partly closing up the corrugations. The corrugations may be made between rollers with pointed teeth, and the closing up operations effected in the machine shown by means of a reciprocated hinged blade 16, bearing on the upper surface of the guided strip 5, the sides of the guide exerting a restraint as by spring presure, or there being a movable stop 21 provided to release the closed up section after each stroke.
Patent GB-185752-A (GB)
Title: Improvements in and relating to electron discharge apparatus and circuit arrangements employing same
IPC: H01J21/18
Filed: 1922-09-07
Abstract: 185,752. British Thomson - Houston Co., Ltd., (Assignees of Hull, A. W.). Sept. 8, 1921, [Convention date]. Vacuum tubes.-In three electrode valve having a variable potential impressed on the grid, the space current is controlled by a magnetic field produced in a winding in the anodecathode circuit, the current in which is maintained substantially constant at a critical value such that the slope of the anode-current, gridpotential curve is greatly increased. The valve may be used as an amplifier, detector or oscillation-generator, and, by using the secondary electron emission from the grid, a negative resistance effect is produced with a resulting increase in the current. In the arrangement shown in Fig. 1, for use as an amplifier, an incandescent filament cathode 1 is surrounded by a concentric grid 3 and anode 4, and a magnetic field, at right angles to the path of the electrons, is produced by a coil 10, which may surround the valve. The coil 10 is shunted by a condenser 11 of large capacity, and is in series with a battery 8 and an output coil 9. An input coil 6 is connected between the grid and the cathode. In a similar arrangement, shown in Fig. 2, for producing oscillations, the output coil 9 is coupled with a coil 13 in the antenna 14, and a feed-back circuit with two coils 15, 16 connects the output and input coils 9, 6 respectively. In order to produce a negative resistance in the grid circuit, the feed-back circuit 15, 16 may be omitted, and the coil 6 shunted by a condenser 17, the frequency of the oscillations being determined by the tuning of the circuit 6, 17; a positive charge may be impressed on the grid to start the oscillations, by replacing the connection 20, between the condenser 17 and the cathode, by a connection 18 with the battery 8. The magnetic field due to the winding 10 prevents heavy rushes of current. In a modification, the condenser 11 is adjustable, and the circuit 10, 11 determines the frequency of the oscillations produced; or the condenser 11 may be replaced by the antenna. The action of the magnetic field on the anode current is shown in curve B, Fig. 4, and curve A shows the current without a magnetic field. The shaded portions of curve C show the intervals during which current is supplied to the anode. Specifications 172,593 and 180,655 are referred to. According to the Specification as open to inspection under Sect. 91, (3) (a), the winding producing the magnetic field may be energized from a separate source. This subject-matter does not appear in the Specification as accepted.
Patent GB-486711-A (GB)
Title: Improvements relating to the manufacture of hollow metal bodies
IPC: B21J9/04
Filed: 1937-09-06
Abstract: 486,711. Billet piercing. TRAUT, R. Sept. 6, 1937, No. 24280. Convention date, Nov. 7, 1936. [Class 83 (iv)] Square section billets a before piercing are rounded off at the corners b remote from the die-entering end so as to obviate the production of a lip during the piercing operation. The mandrel e is centred by a member f which is made conical to correspond with the end of the billet. The member f is carried by a cross head g, which is moved downwardly by a piston l until it engages the billet. The billet, centred by the member f, is then pierced by the mandrel. The entering end of the billet may also be rounded off at c to engage a conically shaped portion at the bottom of the die.
Patent GB-980234-A (GB)
Title: Dibromobenzimidazole cyanine dyes
Inventor: LIBEER MARCEL JAN
IPC: C09B23/02
Filed: 1961-07-06
Abstract: 1 - Ethyl - 2 - methyl - 5: 6 - dibromobenzimidazole is prepared by nitrating 1:3:4-tribromobenzene with nitric acid to give 2,4,5-tribromonitrobenzene, reacting this with ethylamine to give 2 - nitro - 4:5 - dibromo - N - ethylaniline, reducing the nitro group with catalytic hydrogen to give 2-ethylamino-4:5-dibromoaniline, and effecting ring closure by refluxing with acetic acid and hydrochloric acid.  The product may be quaternized by heating with ethyl iodide or N-(bromoacetyl)-methane sulphonamide.  Specification 904,332 is referred to.ALSO:The Specification relates to cyanine dyes comprising two heterocyclic nuclei linked by a methine radical or chain wherein one heterocyclic nucleus is a 5,6-dibromobenzimidazole nucleus and the other is a thiazoline, selenazoline or benzimidazole nucleus.  In the examples, symmetrical dyes are prepared by reacting 1,3-diethyl-2-methyl-5,6-dibromobenzimidazolium iodide with ethyl orthoformate or with triethoxy-propene, and unsymmetrical dyes are prepared by condensing 1,3 - diethyl - 2 - methyl - 5,6 - dibromobenzimidazolium iodide with 1,3-diethyl-2-methylmercapto - 5,6 - dichlorobenzimidazolium methylsulphate or with 2-acetanilido-vinyl - 3 - ethyl - selenazolium iodide, or by condensing 1 - ethyl - 2 - methyl - 3 - (N-methylsulphonylcarbamylmethyl) - 5,6 - dibrobenzimidazolium bromide with 2-(b -acetanilidovinyl)-thiazolinium bromide to give a carbocyanine dye in the form of its internal salt. Specification 904,332 is referred to.
Patent GB-330824-A (GB)
Title: Improvements in grinding machines for the blades of mowing, reaping & similar machines
IPC: B24B3/55
Filed: 1929-08-10
Abstract: 330,824. Schindler, E. r., (Seiffert & Co., Ges.). Aug. 10, 1929. No Patent granted (Sealing fee not paid). Cutting-edges, skaping and treating; gauges. - In a grinding - machine for mowing &c. machine knives the flat side of the grinding- wheel lies along the tooth and operates on the whole length in one operation. A grinding - wheel B operated through gearing in a casing B' by a handle B<2> is mounted in a pivoted framework C. C<1>, its motion being limited in both directions by screws D, D' bearing on inclined faces a<1>. A reinforcing bar on the blade E rests in a longitudinal slot a<2> clamping being effected by screws E<1>. Screws e on which the reinforcing bar rests are adjustable for different thicknesses. The wheel is moved about its pivots to the second position to operate on the opposite side of a tooth. Modifications of the method of pivoting are described.