baber/WOPTO huggingface dataset:
Patent GB-805439-A (GB)
Title: Improvements in or relating to the sintering of powdered materials
IPC: C22B1/24
Filed: 1954-04-09
Abstract: Powdered material such as fly-ash which is not subject to any substantial endothermic reaction when heated is sintered in a shaft furnace or kiln in which blast air is admitted at the bottom, the powdered material together with fuel sufficient to constitute, by combusion, the sole source of heat required for sintering being first formed, e.g. on an inclined-table noduliser, into suitable shapes before being fed to the furnace.  Sintering is effected at a temperature within the limits required for sintering throughout the shapes, this temperature being closely controlled by adjusting the conditions within the charge in the furnace or kiln.  Control of the temperature may be effected using excess air to remove unwanted heat content and taking off part of the heated gases at an intermediate level in the furnace, by variation of the water content of the shaped feed material up to 25 per cent, by returning a proportion of already treated material to the charge, by adding a water spray or steam to the air blast, by addition of inert gasese to the air blast, or by addition of solid fuel to the powder before forming into shapes. Specifications 652,838 [Group XII] and 694,430 are referred to.
Patent GB-571239-A (GB)
Title: Improvements in or relating to radio transmitting devices for navigation purposes
IPC: G01S1/02
Filed: 1940-06-20
Abstract: 571,239. Directive wireless signalling. SOC. INDUSTRIELLE DES PROCEDES LOTH. June 20, 1940, No. 10635. Convention date, June 23, 1939. [Class 40 (v)] In an equisignal navigation system, weakly modulated omnidirectional radiation and strongly modulated directional radiation are combined to give a precise course line. This arrangement avoids the limitation of range imposed by the fact that the minimum detectable difference between carrier fields increases with the strength of the fields, and avoids also the reversal of signal strengths which occurs when a receiver in an equisignal system is overloaded. The output of a carrier-frequency source 1 and of a modulation-frequency source 3 are applied to a modulator 2 which feeds a weakly modulated signal to the omnidirectional aerial 4. The same outputs are applied to a second modulator 5 through a phaseshifter 7, which shifts the phase of the carrier through 90 degrees, and a reversing key 8, which reverses the phase of the modulation in dot-dash or like rhythm, respectively, the arrangement being such that a fully-modulated carrier is fed from modulator 5 to a directional aerial 6. The depth of modulation along the course is that, c, Fig. 3, due to the omnidirectional aerial alone. For one position of the switch 8, corresponding to curve p, Fig. 3, the depths of modulation due to the two aerials are added for deviations to the right of the' course and subtracted from one another for deviations to the left; thus, the modulation falls to zero at a point to the left of the course where the two components are equal, and thereafter increases with increasing deviation. For the other position of switch 8, the curve s holds, for which the point of silence occurs for a deviation to the right of the course. Thus, when the switch is operated in dot-dash rhythm, the modulations represented by curves p, s are detected alternately. In order to produce weakly-modulated radiation of strong intensity in the direction of the course, instead of a strictly omnidirectional aerial, a pair of aerials excited in phase and located fivetwelfths of a wave-length apart may be used. The same pair of aerials may be simultaneously excited in phase opposition with fullymodulated oscillations in order to produce the requisite figure-of-eight radiation field.
Patent GB-168565-A (GB)
Title: Air cooled pulley
IPC: F16H55/36
Filed: 1921-04-13
Abstract: 168,565. Marks, E. C. R., (Marathon Electric Manufacturing Co.). April 13, 1921. Variable-speed belt gearing depends for its variable character upon the slipping of a belt 3, Fig. 1, on a driving-pulley 9, which is cooled by a current of air. The speed is varied by turning a screw 8, which raises or lowers a motor 1, and varies the tension of the belt 3, which may drive a fan 2. At one end of the pulley 9 is a dish-shaped passage-way 13, Figs. 2 and 3, with radial vanes 12, which cause a circulation of air through axial passages 4.
Patent GB-1211756-A (GB)
Title: Improvements in and relating to a discharge grate in a vessel such as a shaft kiln
Inventor: JONES JOHN BURNETT
IPC: F27B1/21
Filed: 1968-03-06
Abstract: 1,211,756. Discharging shaft kilns. BATTELLE DEVELOPMENT CORP. 6 March, 1968, No. 10872/68. Heading F4B. A vertical shaft kiln 10 through which pulverulent material moves downwardly is provided at its lower end with a discharge grating consisting of a deflector plate member having openings 30, 32 therein (shown as lying in concentric circles), and a retainer plate member 35 also apertured and disposed beneath and axially spaced from the deflector plate, imperforate portions of the plate 35 being located under the openings in the deflector plate as shown in Fig. 3, so preventing the direct discharge through the grate of the material passing through the kiln. Said grate also includes pusher bar means 38, 39 adapted to be oscillated across the surface of the retainer plate 35 and to sweep the accumulated material through the apertures therein to a discharge duct 14 therebeneath. The pusher bars may move simultaneously or independently. The imperforate parts of the deflector plate may be of angled cross-section(Fig. 4) and may be atdiffering elevations. For burning or flame treatment of the pulverulent material mass the combustible components may be introduced through the grate into the mass. When the mass is to be contacted by a fluid, the latter may be injected into the mass via the conical bottom 12 of the kiln, and in such case the plate openings in the grate are dimensioned so as to give a uniform fluid flow throughout the mass. In a co-current flow apparatus, fluid and solid materials are fed into the top of the kiln and the fluid is separated either above or below the grate.
Patent GB-630486-A (GB)
Title: Improvements in or relating to electrical devices
IPC: G01F23/36
Filed: 1946-04-09
Abstract: 630,486. Indicating liquid level. LIQUIDOMETER CORPORATION. April 9, 1946, No. 10881. Convention date, Oct. 2, 1945. [Class 40 (i)] A device for averaging or totalling the contents of a number of liquid containers comprises a bridge for each container, each bridge having an arm varied in accordance with the contents of each container and being then brought automatically to balance by variation of another arm, and a further bridge, one arm of which is varied by the rebalancing of all the other bridges so that 'rebalancing of the totalling bridge indicates the total contents of all the containers. As shown in Fig. 1, bridges A and B have capacitive arms 70a and 70b, each varied in known manner by the contents of a tank, the plates of the condensers being so shaped as to produce uniform capacity variations for uniform change in volume of the tank contents. The bridges are supplied with A.C. which also drives a continuously running timing motor 96 which connects the unbalance voltage of each bridge in turn to an amplifier 37 and a phase discriminator 39 and closes a clutch 128 or 129, so that a motor 22 runs to reposition a slider on resistance arms 20a, 20b to rebalance the. appropriate bridge. At the same time these slides vary resistors 149 or 150 connected in series to form an arm of the totalling bridge. Finally, the timing motor feeds the unbalance voltage of the totalling bridge C to the amplifier and clutches motor 22 to a resistance slider 95, which is driven until the bridge is rebalanced. The movement of this slider is used to mark a moving chart 153 which indicates the total or average contents of all the tanks according to its calibration. The Specification as open to inspection under Sect. 91 describes also two other totalling bridges. In one of these, Fig. 1 (Cancelled, not shown), a number of resistors in series, each adjusted by a float in a different tank, form one arm of a bridge. Balancing of the bridge is effected as in the embodiment described above, but the positioning of the slider of the rheostat by the balancing motor varies a resistor in series with a meter and a battery so that the meter indicates the tank contents. The embodiment of Fig. 4 (Cancelled, not shown), is similar, but the resistors in series are replaced by condensers in parallel. This subject-matter is not included in the Specification as accepted.
Patent GB-331874-A (GB)
Title: Improvements in and relating to oil burners
IPC: F23Q7/08
Filed: 1929-04-09
Abstract: 331,874. Auld, S. J. M. April 9, 1929. Heating by electricity.- In means for igniting a heavy oil burner by a jet of light oil which is preignited by causing air heated to the required temperature to come into contact with the jet, an electric heater for the air comprises a heating wire c', Fig. 1, carried by a terminal plug c within a preferably steel tube e containing an insulating liner f and washer f<1>. The wire c' is wound on a former c<2> and painted with a paste consisting of sodium silicate and asbestos powder, the whole being finally baked. Compressed air is supplied through a pipe j and issues from an orifice e<4> in a plate e<2>, preferably of monel metal, so as to impinge upon the light oil yet issuing from the pilot burner a.
Patent GB-141916-A (GB)
Title: Improvements in or relating to brakes, particularly for cycles or motor cycles
IPC: B62L3/00
Filed: 1919-05-02
Abstract: 141,916. Levy, L. G., and Le Pen, M. J. M. May 2, 1919. Blocks acting on hubs.-Relates to hub brakes for driving-wheels wherein the fixed element is prevented from rotation by the engagement of a finger c‹ on the element c with a slot d<1> in the vehicle frame, allowing adjustment of the wheel, and consists in forming the finger c‹ as an extension of the pin b<1> on which the brake shoes b<10> are pivoted. The slot d<1> is formed in a plate d brazed to the vehicle frame, and may be so shaped as to allow adjustment of the wheel without requiring also adjustment of the transmitting-mechanism of the brake.
Patent GB-610574-A (GB)
Title: Improvements in or relating to high-vacuum electron discharge tubes
IPC: H01J19/28
Filed: 1946-04-10
Abstract: 610,574. Thermionic valves. PHILIPS LAMPS, Ltd. April 10, 1946, No. 11005. Convention date, Dec. 3, 1941. [Class 39 (i)] The anode 1, Fig. 1, of a high vacuum discharge tube is provided on its active surface with perpendicular walls 2 forming a honeycomb structure, the height h of the walls being at least one and a half times, and the thickness of the walls less the five per cent of, the width a of the honeycomb apertures, so as to reduce secondary emission. The height : width ratio may be 2: 1, and the thickness of the walls may be two or three per cent of the width of the apertures. The honeycomb is built up from zig-zag strips welded together at their corners, as shown, or of strips provided with incisions, Fig. 4 (not shown). The apertures may be square, hexagonal, or lozenge-shaped; the honeycomb may be coated with carbon to further reduce the secondary emission. The discharge tube may be a diode, triode or tetrode. Specification 206,829, [Class 39 (i)], is referred to. The Specification as open to inspection under Sect. 91 states that the invention may be applied to pentodes, and that the anode may have the shape of a box or cylinder. This subject-matter does not appear in the Specification as accepted.
Patent GB-903889-A (GB)
Title: Improvements in microwave filter
IPC: H01P1/162
Filed: 1960-03-29
Abstract: 903,889. Waveguide transmission arrangements. GENERAL ELECTRIC CO. March 29, 1960 [March 31, 1959], No. 11030/60. Class 40 (8). A filter designed to eliminate unwanted harmonics from a band of frequencies comprises a waveguide capable of transmitting the fundamental band coupled at a number of spaced points with transmission means or an array of transmission means which are capable of transmitting only the harmonics and which are provided with energy absorbers. As shown in Fig. 2, each waveguide 23 in the array 22 is coupled at one end to the waveguide 20. The waveguides 23 are dimensioned to have cut-off frequencies above the frequency band transmitted by the guide 20 and are provided with dissipative terminations 27 whereby the harmonic content of the transmitted energy is eliminated. The array comprises two rows of such waveguides and is constructed from a series of plates separated by square-section posts 25 and dividing strips 26. In an alternative construction, Fig. 5, pairs of waveguides 36 arranged side-byside alternate with single waveguides symmetrically positioned with respect to the alternating pairs. This arrangement ensures coupling to both the H 10  and H 20  modes of the harmonic frequencies. Improved coupling of the harmonic frequencies may be obtained by forming the waveguide 20 with a double cosine taper 21. In a modified arrangement, the dissipative waveguides 46, 57, 62, Fig. 8, are arranged parallel and contiguous to the main guide and the coupling comprises rows of holes 54 or of slots 58, 63. The dissipative elements consist of strips 50 of resistive ceramic material arranged on the inside of the broad faces of the guides opposite the coupling apertures. Blocks of dissipative material extending over the whole cross-section of the guide may be used (Fig. 9, not shown). In the alternative constructions of Figs. 10 and 12, the dissipative guides 76 form ridges within the transmission guide 75. The coupling is provided by regularly-spaced slots 81 or by spaced pairs of slots 79. The dissipative elements are either in the form of continuous strips 82 on one face of the guide or of spaced plates 80 located in the median plane of the guides. The transmission and dissipative guides may be circular and coaxial, the smaller, dissipative guide being coupled to the surrounding transmission guide by spaced apertures (Figs. 13-16, not shown).
Patent GB-688921-A (GB)
Title: Improvements in and relating to cut-off valves for high pressure gases
IPC: F16K39/04
Filed: 1950-05-04
Abstract: 688,921. Valve closure members. CARBA AKT.- GES. May 4, 1950 [Oct. 6, 1949], No. 11065/50. Class 135. A cut-off valve for a high pressure gas container comprises a movable plunger 3, Fig. 1, and a fixed casing member 4 cooperating therewith to provide two closure positions to be opened in series. The enclosed space between the two closure positions being in permanent communication through a throttling duct 8 with an outlet passage 9 controlled by a pressure reducing valve. On lifting the end 2 of the plunger from its seat to open the first closure position high-pressure gas gradually fills the passage 9 up to a pressure almost equal to full pressure before the plunger 3 is withdrawn sufficiently past a seal 5 to permit full flow through slots 7 which constitute the second closure position. In a modification the seal between the plunger 3<SP>1</SP>, Fig. 2, and the casing member 4<SP>1</SP> is provided by a ring 5<SP>1</SP>, the second closure position being opened by the ring 5<SP>1</SP> leaving the member 4<SP>1</SP>.
Patent GB-568007-A (GB)
Title: Method and apparatus for the conservation of fruit juices and vegetable juices
IPC: A23L2/42
Filed: 1940-07-01
Abstract: 568,007. Refrigerating systems. UNIPEKTIN. AKT.-GES. July 1, 1940, No. 11111. Convention date,. July 1, 1939. [Class 29] [Also in Groups III and VI] Fruit or vegetable juice is colloidally subdivided and homogenized by passage through a mill, comprising a rotor 16 and a stationary milling crown 21, and sprayed down a tube 25 into a chamber 24 under high vacuum, e.g. 4 mm. of mercury, whereby the juice boils and is cooled to below 0‹ C. by evaporation. The gases previously dissolved therein are freed and continually drawn off through an aperture 27 and pass through three vacuum-producing devices 26, 31, 35. The gas-free juice passes through a pipe 42 to a reservoir 44 whence it is led to bottling apparatus on to steam boilers 47, 48 in which it is clarified by heating to 50-60‹ C. under vacuum, being then filtered, bottled under vacuum and sterilized. The mill chamber 11 and the chamber 24 are connected by a pipe 23. The spray is produced by a grid 22, but instead nozzles or conical rotor spraying means may be used. The devices 26, 31, 35 comprise steam ejectors 28, 32, 36 and water condensers 29, 35 fed by atmospheric pressure from a tank 40 and discharging into a container 39. Pumps may be used for drawing off juice and water.
Patent GB-1197343-A (GB)
Title: Duplicating Machines
Inventor: HORSTMANN BEVAN GRAHAM
IPC: B41L13/04
Filed: 1968-03-07
Abstract: 1,197,343. Stencilling apparatus; fraud preventing. HORSTMANN GEAR CO. Ltd. 14 May, 1969 [7 March, 1968], No. 11114/68. Headings B6A and B6C. [Also in Division B8] A duplicating machine comprises a rotatable drum 3 which releasably holds a stencil on its periphery; a reciprocable sheet feeding foot 27 coupled to the drum 3 for presenting by each rotation of the drum a single sheet to a printing position defined by the drum 3 and a pressure roller 7; a counter 51 which is arranged to count the number of rotations of the drum 3; a stencil spoiler 42 mounted so that it can be moved into and out of the path of the stencil, and a retainer (Fig. 2, not shown) for holding the spoiler out of said path, the stencil spoiler 42 being operatively coupled to the counter 51 so that when the counter responds to a predetermined number of drum rotations, as set by hand controls 53, the retainer is actuated to move the spoiler into the said path to tear the stencil. Thus a stencil such as that used in machines for duplicating a signature on cheques, and which therefore presents a security risk, will be automatically spoiled when a predetermined number of copies have been taken from it. The retainer may include a solenoid-operated plunger controllable by a switch actuatable by the counter 51, and the counter may include a pulse receiver connected to a pulse generator, e.g. a pulsing switch, actuatable by the drum 3 (Fig. 2, not shown).
Patent GB-529165-A (GB)
Title: Improvements in or relating to machines for packeting articles
IPC: B65B1/22
Filed: 1939-04-12
Abstract: 529,165. Packeting-niachines. CROWN CORK & SEAL CO., Inc. April 12, 1939, No. 11142. Convention date, June 8, 1938. [Class 94 (i)] A machine for packeting articles such as bottle caps comprises a support for a receptacle adapted to be vibrated by means controlled by a counting device moved by contact with the articles. The articles are delivered through a shoot 32, Fig. 3, to a hopper 30, and fall on a rotating drum 31, and thence between a depending skirt 65 and the walls of the hopper. They are carried round in.a a vertical position by teeth 66 to an aperture opposite a shoot, into which they are stripped, leading to a conveyer. 35. The top and 'bottom are formed by channel-shaped guides 74, 75, and an endless band 36 is held against the articles by resiliently mounted tension rollers 80. The upper end of the conveyer ends near counting mechanism 38 comprising a wheel 37, Figs. 1 and 16, with pockets conforming to the shape of the articles. When the required number have passed the wheel, means operated from the shaft 95 are actuated to energize a solenoid 151, which attracts the armature 180, and, through links 181, 182 and a ratchet and pawl mechanism, rotates a shaft 177. Cams 176 engage arms 174 on vertical shafts 172 to move guide plates from the shoot 44 to the shoot 45, or vice versa and the filling of an empty receptacle is begun, while the full one is removed. The counting mechanism also operates mechanism for vibrating the platforms 261 supporting the receptacles at intervals during the filling. Each platform is mounted on trunnions 260a, Fig. 19, and is connected by a link 234 pivoted at 235 to a piston 47, Fig. 20, in a cylinder 230 mounted on trunnions 231. At intervals, a solenoid is energized by the counting mechanism to cause admission of compressed air through an inlet 228a into a valve chamber in which a valve 237 is slidable. In the position shown in Fig. 20, the air passes downwardly through grooves 241, 243, through the lower chamber port 240, and causes the piston to rise, the upper port 239 being open to the air. The platform swings upwards until an extension 254 strikes flanges 252 and moves the valve into its upper position. The compressed air now enters port 239 through grooves 242 and the lower port 240 is open to the air, so that the piston is moved downwardly until the extension 254 strikes flanges 253 and returns the valve to the position shown. The platform is thus vibrated during the period of energization of the solenoid. The trunnions 260a are placed so that the platform is slightly out of balance to ensure that it will return to the position shown at the conclusion of each vibrating operation. The platforms are provided with bars 262, 263 and corner brackets 264, which, with ledges 268, 269, enable receptacles of various sizes, indicated at R<SP>1</SP> ... R<SP>4</SP>, to be held in the filling position. Rubber blocks 270, Fig. 19 are provided to absorb vibration. Specification 527,896, [Group XIX], is referred to.
Patent GB-1434341-A (GB)
Title: Method for removing vanadium nickel and sulphur from hydrocarbon oils
IPC: B01J23/745
Filed: 1974-03-13
Abstract: 1434341 Catalyst for hydrotreating heavy oils; hydrocracking AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 13 March 1974 [30 March 1973] 11197/74 Heading C5E Vanadium, nickel, sulphur and asphaltenes are removed from hydrocarbon oils and the oils may be cracked by contacting, at 350-500 C. in the presence of hydrogen at a hydrogen pressure of 1-300 atmospheres, with red mud (i.e. the residue from the digestion of bauxite in caustic soda) in powdered, granulated or pelletized form. In examples a red mud comprising 22 wt. per cent Al 2 O 3 , 13% SiO 2 , 42% Fe 2 O 3 , 2% TiO 2  and 8% Na 2 O is dehydrated, pelleted and used to treat atmospheric and vacuum residues, optionally after presulphiding with a hydrogen sulphide-hydrogen mixture; the products are separated into C 1  to C 5 , C 5  to 300 C. and 300 C. + fractions.
Patent GB-1446147-A (GB)
Title: Process for the producion of alkyl acrylates and alkyl methacrylates
IPC: C07C67/62
Filed: 1974-03-13
Abstract: 1446147 Alkyl (meth)acrylates DEUTSCHE TEXACO AG 13 March 1974 [6 April 1973] 11233/74 Heading C2C Alkyl acrylates or methacrylates (alkyl more than 2C) are prepared by the alcoholysis of methyl acrylate or methacrylate at elevated temperature with an alcohol (more than 2C) in the presence of (i) a titanium alcoholate (ii) an entraining agent for the methyl alcohol and (iii) a polymerization inhibitor comprising a mixture of 2,6-di-tert-butyl-para-cresol and an absorptive carbon, followed by the hydrolysis of the titanium alcoholate and removal of the titanium hydroxide and adsorptive carbon. Oxygen containing gas may be passed through the alcoholysis, followed by steam distillation of the product mixture. Examples describe the preparation of lauryl methacrylate, stearyl acrylate and the methacrylate of an alcohol from the Ziegler process.
Patent GB-389663-A (GB)
Title: An improved heat-resisting composition and method of making same
IPC: C08L97/00
Filed: 1932-04-20
Abstract: Peat is made into a slurry with which plaster of Paris is mixed.  The mixture is then moulded and fired at, say, 1,000 DEG  F. The product is crushed and is then used as a heat-insulating plaster with or without the addition of asbestos or other fibres. In an example, the proportions are 3 of peat slurry to 1 of plaster of Paris, the proportion of added asbestos being 15 to 20 per cent of the finished product.