baber/WOPTO huggingface dataset:
Patent GB-581728-A (GB)
Title: Improvements in or relating to radio locating systems
IPC: G01S1/02
Filed: 1941-11-27
Abstract: 581,728. Radiolocation systems. STANDARD TELEPHONES & CABLES, Ltd., and HOUGHTON, L. W.Nov. 27, 1941 No. 15285. [Class 40 (v)] A system for determining the direction of an object by electromagnetic waves reflected from it comprises two or more antenna arrays for producing closely-adjacent beams, the directions of maximum field-strength of which are slightly divergent, means for receiving the reflected waves from an object situated in the beams, means for detecting differences in the energylevels of the waves reflected from pairs of the beams, and means for orienting the beam system manually or automatically under control of this difference. Fig. 1 indicates the field patterns of two transmitters situated at 0, and mounted so that they may be oriented in two perpendicular planes. When they are so oriented that a reflecting object H is situated in the plane of symmetry AB, OE of the two field patterns, equal reflected signals from both transmissions are obtained in a receiver A, which is preferably mounted on the same body as the transmitting arrays. The transmitters may emit unmodulated carriers of slightly different frequencies, the reflected waves received at A being amplified and heterodyned to produce frequencies f1 and f2 which are separated by filters and separately rectified, the resulting voltages being balanced against one another in a bridge circuit shown in Fig. 5. Alternatively, the carriers may be modulated, the modulations being obtained separately from the two rectifiers and applied to the same bridge circuit. In this circuit, the rectifiers 6, 7 are connected to the grids of two triode valves 20, 21, the direct current voltages developed across the grid leaks 22, 23 controlling the impedances of the two valves, which form two arms of a bridge circuit of which the other arms are formed by the anode resistances 24, 25, the condition of balance being indicated by a meter 26. The out-of-balance voltage resulting from the reflecting object being to one side of the plane of symmetry AB, OE control mechanism for automatically orienting the beams so that this plane is directed towards the object, for which purpose a motor with a differential winding, or a polarized relay, may be employed. A third transmitter may be used in conjunction with one of the first two, to determine a second plane, intersecting the first, in which the rejecting object is located. One of the beams may be used for distance determination by known means employing a pulsemodulated transmission.
Patent GB-181016-A (GB)
Title: Improvements in processes for separating the components of mixtures or aggregations of different materials
IPC: B01D35/00
Filed: 1922-05-31
Abstract: 181,016. Nafilyan, G. June 1, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Filtering.-The constituents of a mixture are separated by converting the mixture into a mist or spray and passing it through a flue or channel which communicates with a wider space through filter walls or partitions which may be formed of fabric. Several filter of different permeabilities may be employed. The flow of the spray may be retarded by baffles or projections from the walls of the flue. The solid particles are gradually given off through the walls and collected in chambers parallel therewith.
Patent GB-347029-A (GB)
Title: Improvements relating to lawn tennis nets
IPC: A63B61/02
Filed: 1930-05-19
Abstract: 347,029. Lawn-tennis nets. CARVER, E. C., 12, Grosvenor Gardens, London. May 19, 1930, No. 15306. [Class 132 (ii).] The vertical selvedge edge of a lawn tennis net is attached in parallel relation to its supporting post 6 by means of a tube 2 split longitudinally to such a width as to permit the horizontal strands of the edge of the net to be moved up or down within the split but to restrain the knots 4 from being pulled out of the tube. Straps 12 secure the tube to the post which may be protected by rubber washers 7. The slit may be closed at the ends by splitpins, or by caps or by contracting the tube. The tube may consist of one or more lengths.
Patent GB-769778-A (GB)
Title: Polarized electro magnetic relays
IPC: H01H50/42
Filed: 1955-05-27
Abstract: 769,778. Electromagnetic relays. WESTINGHOUSE AIR BRAKE CO. May 27, 1955 [June 10, 1954], No. 15369/55. Class 38(5) A relay in which the armature is gravity biased to the released position, is held by a polarizing magnet in that position, and is picked-up by energization of the operating winding by a current of a certain polarity, comprises an armature 26 pivoted along its rear edge at 25 to operate between a pair of upper pole pieces 6, 7 and lower pole pieces 20, 21 and control front and back contacts (not shown). The pole pieces 6, 20 and 7, 21 are connected by permanent magnets 22, 23 magnetized across their width and these magnets hold the armature in its released position against the pole pieces 20, 21, the flux path being completed by cores 2, 3, connected to the pole pieces 6, 7, and by a backstrap 19 connecting the upper ends of the cores. The cores 2, 3 each form part of a pair of closed magnetic loops including'upper and lower extensions 10b, 10a and 11b, 11a, together with permanent magnets 16, 17, the magnet 17 producing a loop flux which passes downwards in the core 3 and the magnet 16 a flux which passes upwards in the core 2. Operating windings 12, 13 on the cores are connected in series and when these are energized to produce a flux in the cores in the same direction as that produced by the magnets 16, 17 the armature 26 is raised towards the pole pieces 6, 7, the operating flux path being completed by the backstrap 19. Energization of the coils 12, 13 by a current of reverse polarity is ineffective to raise the armature, due to the magnets 16, 17. Iron shunts 14, 15 serve as keepers for the magnets 16, 17.
Patent GB-1492302-A (GB)
Title: Combination clamping device
IPC: B25B5/00
Filed: 1976-04-20
Abstract: 1492302 Combination clamping and gauging device H R HOLMES (DIECASTING) & CO Ltd 20 April 1976 [15 April 1975] 15369/75 Headings B4W and B4X A clamping device comprises a bar 10, a pair of opposing jaws 12, 13 slidable along the bar, one, 12, of which has a clamping screw 14 for fixing it at any location on the bar, a fixed abutment 15 at one end of the bar mounting a vice screw 16 for bearing on the other, 13, of said jaws, and calibrations on the bar enabling it to be used as a measuring gauge. A G-clamp 17 may be provided for securing the bar to a table and a work platform 21 for use as an anvil, square or fretwork work platform may be mounted on the G-clamp. An aperture 23 for a scriber provides for use of the device as a marking gauge.
Patent GB-649607-A (GB)
Title: Improvements in devices for withdrawing samples of material from closed vacuum or pressure vessels
IPC: G01N1/00
Filed: 1948-06-08
Abstract: 649,607. Sampling apparatus. ROGERS, F. H. June 8, 1948, No. 15492. [Class 106(v)] A sampling apparatus for withdrawing samples of material from. a closed vacuum or pressure vessel 6 wherein a cylindrical casing 2, adapted to be mounted with one end 3 thereof extending within and providing a means of communication with said vessel, has slidably mounted therein a sleeve 31 adapted upon reciprocating to open and close the communication between the inner end of said casing and said vessel, a further sleeve 39, slidably mounted within the first said sleeve and formed at the end thereof external to said vessel with a closure wall 40, being adapted to be detachably secured to the first sleeve to seal the outer end thereof, a device being provided in said closure wall to open or close said sleeves and said casing to atmosphere at will. As shown, the sampler 1 closed at the inner end by a screw cap 3 is fixed in a vessel 6 which is under vacuum. The sleeve 31 with sleeve 39 inside is withdrawn by depressing a lever C attached thereto which is held in this position by engaging a notch 25 in a quadrant 10 so that the two ports 33 in the casing are uncovered through which a sample of the material in the vessel 6 passes into the inner sleeve. The lever C is then returned to its upper position thus returning the sleeves completely inside the casing and closing the ports 33 whereby a piston 46 is depressed against a spring 48 the knobs 51, 60 being displaced from the closed end 40. By unscrewing the vacuum break needle valve 57 air enters the interior sleeve 39 until atmospheric pressure obtains when the sleeve 39 with the sample may be with drawn. In a modification, Fig. 7 (not shown), for taking samples from a vessel under pressure ports are provided on the sleeve 31 and not in the outer casing and a sample is obtained by projecting the inner sleeves 31, 39 out of the casing into the vessel by a lever mechanism when the ports become exposed and the sample is received into the inner sleeve. On releasing the lever mechanism the sleeves are returned within the casing and the whole sealed off from the vessel. The excess pressure is released by a valve mechanism and the innermost sleeve being released with the sample.
Patent GB-164355-A (GB)
Title: Improved charge-mixing device for internal-combustion engines
IPC: F02M29/02
Filed: 1921-06-04
Abstract: 164,355. Volz, K. June 9, 1920, [Convention date]. Spray carburettors.-A mixing-device mounted directly on the carburettor comprises a bulbshaped casing a, b containing a fan c mounted on an axially-moving shaft d carrying a ring k controlling additional air ports i. The shaft d is mounted in bearings g<1>, g<2>, carried by shackles u secured to the casing a and is provided with an abutment n for a spring m. The ring k may be provided with conical studs which project into the air ports i. The air supply may be regulated also by a hand-actuated ported ring p. Under engine suction, the fan revolves and also lifts, thus opening the air ports. The casing b is provided with diametrically opposite inspection windows r.
Patent GB-817344-A (GB)
Title: A device for conveying discrete material such as grain
Inventor: SALMOND CHARLES MILLAR
IPC: B65G33/00
Filed: 1956-05-18
Abstract: 817,344. Screw conveyers. SALMOND, C. M., [trading as YOUNG & SON, A]. Aug. 16, 1957 [May 18, 1956], No. 15556/56. Class 78 (1). Grain is conveyed through a cylindrical conduit 1 made of polythene by a rotatable metal spiral 2 formed from strip of square cross-section, deformation of which during operation is resisted by a tension wire 16 passed axially therethrough and connected thereto only at its ends. A reversible electric motor 3 is connected by chain-and-sprocket gearing to a shaft 9 to which a boss 6 is secured by a set-screw 10. The end 7 of of the spiral is secured to the boss by welding and a clamp 8. One end of the wire 16 is brazed to the end 17 of the spiral and the other end is clamped to the boss 6 by a setscrew 18. The area of the inlet 4 is varied by moving the sleeve 20 longitudinally.
Patent GB-1470797-A (GB)
Title: Vinyl chloride resin composition
IPC: C08F259/00
Filed: 1974-04-09
Abstract: 1470797 Vinyl chloride resin/graft polymer composition KUREHA KAGAKU KOGYO KK 9 April 1974 [9 April 1973] 15580/74 Heading C3G A composition consisting of 70 to 95% by weight of a homopolymer or copolymer of vinyl chloride, and from 5 to 30% by weight of a multicomponent resin which comprises: (A) an elastomeric portion polymerized in emulsion from 40 to 95% by weight of at least one C 2  to C 12  alkylacrylate, from 4À99 to 40% by weight of butadiene, from 0 to 30% by weight of methyl methacrylate and from 0À01 to 3% by weight of a cross-linking agent copolymerizable therewith; (B) a first-step graft portion polymerized in emulsion in the presence of the elastomeric portion from 10 to 50% by weight of acrylonitrile, from 50 to 89À99% by weight of methyl methacrylate and/or styrene and from 0À01 to 3% by weight of a cross-linking agent copolymerizable therewith; and (C) a second-step graft portion polymerized in the presence of said elastomeric and first-step graft portions from monomers of 97 to 97À99% by weight of at least one C 1  to C 4  alkylmethacrylate and from 0À01 to 3% by weight of a cross-linking agent copolymerizable therewith, the multicomponent resin consisting of from 50 to 80 parts of component (A), from 10 to 45 parts of component (B) and from 5 to 25 parts of component (C), all parts being on a weight basis. In the examples the rubber substrate is derived from (1)-(3) 2-ethylhexylacrylate, butadiene and methyl methacrylate; (4) 2-ethylhexylacrylate and butadiene and (5) n-butylacrylate and butadiene: graft component (1) from (1)-(5) styrene, acrylonitrile and methyl methacrylate; graft component (2) from methyl methacrylate, all three being cross-linked with ethylene glycol dimethacrylate.
Patent GB-672487-A (GB)
Title: Improvements in machines for ramming foundry cores
IPC: B22C15/24
Filed: 1950-06-22
Abstract: 672,487. Moulding-machines. HANSBERG, F. June 22, 1950, No. 15645/50. Class 83 (i). A core-moulding machine comprises a container for the sand, loam, &c. with one or more outlets and a conduit for compressed air connected to the container through a large, quickacting valve and if desired a smaller adjustable throttling valve. The container 3 may have a perforated metal liner 4 and a replaceable nozzle 7 around which is arranged a head 8 to engage the core box having exhaust openings 9 covered with gauze 10. The valve 13 has a cone 13<1> to direct air so that some enters the container 3 through the liner 4. It is operated pneumatically by a spring-returned piston. The throttling valve 14 may be moved by a hand wheel 17. The core box is placed on a table 19 which is raised by a pneumatic piston 21. The container 3 is arranged to swing on the conpressed air supply 1, shown as a reservoir. Packing 22 avoids loss of compressed air.
Patent GB-745675-A (GB)
Title: Improvements in flexible chamber pumps
IPC: F04B43/00
Filed: 1953-06-08
Abstract: 745,675. Diaphragm pumps. DEB CHEMICAL PROPRIETARIES, Ltd., and WILLIAMSON, A. B. Sept. 6, 1954 [June 8, 1953], No. 15687/53. Class 102(1). A dispensing apparatus includes a diaphragm pump in which the diaphragm 14 is cup-shaped and formed integral with the outlet tube 21. The diaphragm abuts a disc 12a, fitted with an inlet valve 19 and is clamped to a container 13 by a housing 23 ; sealing washers 16, 17 are provided. The outlet tube is fitted with a nozzle 25 having an outlet valve 24, and a spring 28 is located between the housing 23 and the nozzle 25.
Patent GB-671634-A (GB)
Title: Improvements relating to the reacting of gaseous materials in the presence of finelydivided catalytic solids
IPC: B01J8/10
Filed: 1947-06-13
Abstract: <PICT:0671634/III/1> Gases are reacted in the presence of catalytic solids in apparatus comprising a vessel 45 having separate vapour and solid inlets and outlets and a plurality of open-ended tubes 46 within said vessel and concentric therewith and vertically spaced below the solids inlet 19, mechanical impellers 49, within the tubes 46, being mounted on a rotatable central shaft 48 and means 33 for driving the shaft.  The apparatus may be used for cracking hydrocarbons to produce motor fuel, or for the regeneration of contaminated catalyst or for the strpping of the catalyst after reaction or after regeneration.  In a modification, Fig. 5 (not shown), one tube 46 only is used and has a number of impellers operating therein.  The tubes 46 are supported upon vanes 47 which are themselves supported upon baffle rings 50.  The solids/gas mixture is guided by the rings 50 from the annular space between the tubes 46 and vessel 45 back into the same tube or the one beneath it, and the vanes 47 straighten out the rotating solids/gas mixture. An open-ended skimming cylinder 51 is above the catalyst level which is maintained substantially constant and separates the entrained solids from the gas effluent.  A wheel having radial blades 54 is mounted on the shaft 48 and within the cylinder 51 and the blades accelerate the solids to the edge of the cylinder whence they pass out through louvres 51a and thence back down into the solids mass.  Bearings of the shaft may be cooled and the vessel may be jacketed or pipes may run longitudinally within the annular space between the vessel and the tubes 46, and a heating or cooling liquid circulated therethrough.
Patent GB-1477576-A (GB)
Title: Spacers for multiple glazing units
IPC: E06B3/673
Filed: 1975-04-16
Abstract: 1477576 Shaping and coating adhesive SAINT-GOBAIN INDUSTRIES 16 April 1975 [17 April 1974] 15689/75 Heading B5A [Also in Division E1] An elongate spacer for a double-glazing unit comprises in cross-section a rigid T-shaped hollow member with a circular strip of an adhesive composition covering the stem of the T (see Fig. 5e). It is produced by coating the adhesive composition on to the rigid member. A heated vessel 9 contains the molten adhesive, the rigid member 13 is heated while passing through portion 16b, the rib then passes through the molten adhesive 14 which is formed to shape in the die stock 16d. The cross-sections are shown in Figs. 5a-5e.
Patent GB-753396-A (GB)
Title: Improvements in or relating to stage switchboards for electric stage lighting installations
IPC: H01H3/58
Filed: 1954-05-27
Abstract: 753,396. Control systems for stage lighting. SIEMENS - SCHUCKERTWERKE AKT.- GES. May 27, 1954 [May 27, 1953], No. 15737/54. Addition to 672,460. Class 38 (4). [Also in Group XXXVII] Relates to a stage lighting switchboard comprising one or more rows of potentiometers and two common drive shafts rotating in opposite directions and wherein the moving contact arm or slider of each potentiometer may be coupled to the desired common drive-shaft by energizing the appropriate one of a pair of electromagnetic clutches. According to Specification 725,433 the clutch selection is performed by the potentiometer itself. The present invention modifies this by providing for each potentiometer location a clutch selection switch which is entirely separate from its associated potentiometer. In the embodiment shown a forked switch arm 3, Figs. 1 and 2, has a square portion 6 mounted for rotation on a shaft 5. When the switch arm 3 is thrown up or down the square portion 6 slides in V-shaped recess 9a in leafspring 9 and the moving switch contacts 3a or 3b engage fixed contacts 4a or 4b and energize clutch winding 15 or 16, Fig. 5. In the drawing only one switch unit 3 and potentiometer 1 are shown; in fact there are many such pairs 1, 3 as indicated by chain lines in Fig. 3. To reset all the switches simultaneously to the horizontal or off position a strip 13 is rotated to swing leafsprings 9 clear of their abutments 11 so that square sections 6 are released from V-shaped recesses 9a by tension springs 7. To indicate potentiometer coupling to the selected common drive shaft (i) arrows 14 may be marked on the switch arm 3, Fig. 4, (ii) coloured background panels may be utilized, (iii) the switch knob 3e may be associated with an angular member 3f, Fig. 2, so that dependently on the position of the switch arm 3 one or the other surface 3f1 or 3f2 or both surfaces lie towards the viewer; the surfaces 3f1, 3f2 may have direction markings.
Patent GB-840841-A (GB)
Title: Improved course-indicating apparatus
Inventor: MURRAY THOMAS BRIAN
IPC: G01C21/14
Filed: 1955-06-01
Abstract: 840,841. Course recorders. COMMUNICATIONS PATENTS Ltd. July 4, 1956 [June 1, 1955], No. 15741/55. Class 97(2) [Also in Group XXXVIII] Course indicating apparatus comprises a support for a chart, an indicating element arranged to co-operate with a chart placed on said support, two fixed driving means, and separate connecting means connecting each of the driving means to the indicating element, the connecting means being so arranged that when the two driving means are rotating in the same direction the indicating element is moved in a first direction and when the two driving means are rotating in opposite directions with respect to each other the indicating element is moved in a second direction substantially perpendicular to the first. In the form shown in Fig. 1, a wire 6 passes round a drum 9 and pulleys 7, 8, 10, 11, 12, 13, its ends being attached to the pen unit 3 to which are also attached the ends of a wire 14 which passes round pulleys 15, 16, 17, 18, 20, 21 and a drum 19. The pairs of pulleys 7, 15 and 13, 21 are mounted on blocks 22, 23, slidable on guides 24, 25. As a result, rotation of the drums 9, 19 in the same direction at the same speed produces a N-S movement of the pen 3 across the chart 4 while opposite rotations of the drums produces an E-W movement. Other movements may be produced by appropriate combinations of rotations of the drums. The drum 9 is driven by an integrating system comprising a motor 27, a generator 28 and a summing amplifier 26. Reference voltages are fed to motor generator windings 33, 34 while the motor winding 32 is fed from the amplifier 26 to the input of which is fed the voltage developed in the generator winding 35. The drum 19 is driven from a similar system comprising an amplifier 37. As a result the drums 9, 19 rotate at speeds proportional to the inputs to the respective amplifiers which are derived from the circuit of Fig. 2. In the case of an aircraft the flight controls operate potentiometers, represented by the unit 40, which feed signals to a unit 41 which computes N-S and E-W airspeed components fed to amplifiers 44, 45. A potentiometer 46 is set in accordance with wind speed and applies a voltage to a resolver 47 which feeds components to the amplifiers 44, 45, the outputs of which, fed to the transformers 50, 51 therefore represent aircraft ground-speed components. Each transformer has secondary windings coupled to each amplifier, the voltages representing the N-S component being fed in the same phase to both amplifiers, the E-W voltage components being fed in opposite phase. If it is desired to obtain voltages representing N-S and E-W position co-ordinates the rotations of the motors 27, 36 may be fed to differential gears which produce the sum and difference of the two rotations which represent the required co-ordinates and are used to rotate potentiometers.
Patent GB-481575-A (GB)
Title: Improvements relating to roundabouts
IPC: A63G1/34
Filed: 1936-06-05
Abstract: 481,575. Amusement apparatus. HAASE, H. June 5, 1936, No. 15773. Void. Convention date, June 14, 1935. Drawings to Specification. [Class 132 (i)] The amusement apparatus described is substantially identical with that described in Specification 437,425.
Patent GB-1143942-A (GB)
Title: Improvements in or relating to electrical striker assemblies
IPC: G10K1/067
Filed: 1965-04-13
Abstract: 1,143,942. Sound-producing instruments. V. & E. FRIEDLAND Ltd., and H. L. SKELTON. 13 July, 1966 [13 April, 1965]. No. 15795/65. Heading G5J. A striker, e.g. for a door chime which may be similar to that described in Specification 1,050,174 comprises a solenoid and plunger characterized in that the outer surface of the plunger and/or the inner surface of the solenoid is coated with a solid lubricant. As described, a coating of P.T.F.E. is applied to the plunger by making a suspension of P.T.F.E. in distilled water, applying the suspension to the plunger by dipping or spraying then drying and sintering the coating.