baber/WOPTO huggingface dataset:
Patent GB-700630-A (GB)
Title: Improvements in or relating to a method of and means for the stereophonic recording of sound
IPC: H03F3/68
Filed: 1951-02-16
Abstract: 700,630. Stereophonic systems. KLANGFILM GES. Feb. 16, 1951 [Feb. 16, 1950], No. 3876/51. Class 40 (4) A microphone 1, pick-up, or the like, Fig. 1, transmits current along a single channel which branches into two or more separate channels 2, 3 connected to recording apparatus ; regulators 4, 5 respectively control the total volume and the relative strengths of the currents in the separate channels. A tone control 6 and a reverberation control 7 may be linked with the volume control 4, all the regulators 4, 5, 6, 7, which may take the form of variable potentiometers, being controlled by a common universally-mounted manipulating member 8, Fig. 2, whose movement corresponds approximately to the apparent movement of the source of sound. An indicator, such as a plan 9 on to which a beam of light is projected from the manipulating member 8; may be provided. The system may be used in the mixing of sounds from different sources.
Patent GB-438022-A (GB)
Title: Improvements in and relating to the production of sodium arsenite and to compositions for insecticidal or fungicidal purposes containing the same
IPC: C01G28/02
Filed: 1934-11-15
Abstract: Sodium arsenite, particularly for insecticidal and like purposes, is prepared by bringing together caustic soda and white arsenic in the presence of a limited amount of water just sufficient to ensure complete reaction.  A little sodium carbonate may also be added, and the reaction may be hastened by plunging a hot iron bar into the mass.  The heat of the reaction is sufficient to drive off excess water as vapour, leaving a substantially dry mass.  Substances imparting moisture resisting properties may be added before or after grinding the product to a fine powder; such substances are stearic or other higher fatty acids and their zinc or other metal salts, rosin, rosinates made by heating rosin with oxides of metals, paraffin wax, ozokerite or other mineral waxes, and petroleum residues of high melting point.ALSO:Compositions containing sodium arsenite, particularly for insecticidal or fungicidal purposes, are prepared by bringing together caustic soda and white arsenic in the presence of a limited amount of water just sufficient to ensure complete reaction. A little sodium carbonate may also be added, and the reaction may be hastened by plunging a hot iron bar into the mass. The heat of the reaction is sufficient to drive off excess water as vapour, leaving a substantially dry mass.  An inert filler and a substance imparting moisture-resisting properties may be added before or after grinding the mass to a fine powder.  Diluents specified are talc, china clay, lime, dolomite and gypsum; moisture resisting additions are stearic or other higher fatty acids or their zinc or other metal salts, rosin, resinates made by heating rosin with oxides of metals, paraffin wax, ozokerite or other mineral waxes, or petroleum residues of high melting point.
Patent GB-548115-A (GB)
Title: Improvements in or relating to spring-loaded safety valves
IPC: F16K17/08
Filed: 1941-03-24
Abstract: 548,115. Safety valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. March 24, 1941, No. 3939. [Class 135] A " high-lift " safety valve has a lift valve member 1 loaded by a spring 2 acting as an abutment supported by a shoulder on a spindle, 4. The abutment 3 has a depending skirt 3a housing a loosely fitting sleeve 5 the lower end of which rests on a partition 6 separating the outlet chamber 7 from the hood 9 housing the loading spring. The " cold " internal diameter of the skirt exceeds the " cold " external diameter of the sleeve by an amount which is in excess of the normal clearance required between non-dragging concentric cylindrical surfaces so that when the valve lifts and the escaping steam acts on the abutment 3 to increase the lift it escapes outwardly through the clearance and does not impinge directly on the spring. Drain apertures 15 are provided in the plate 6 to discharge condensate into the chamber 7. The central part of the plate 6 is formed with a boss 12 formed with an external lip reaching close to the wall of the sleeve and with internal spider arms 10 adapted to provide a guide for the spindle. The valve member and seat have plane contacting surfaces and the seat is surrounded by a lip 17 adapted to locate a grinding-in ring 18. Ample clearance is provided between the valve member and ring to permit eccentric rubbing action during the grinding-in operation. Specification 249,334, [Class 135], is referred to.
Patent GB-1107652-A (GB)
Title: Pharmaceutical compositions having oxytoxic activity
IPC: A61K31/495
Filed: 1966-01-28
Abstract: 1 - (2 - Quinolyl) - piperazine is prepared by reacting a 2-haloquinoline with piperazine, e.g. in toluene.  Its salts, e.g. the maleate, are prepared by direct reaction with the acid.ALSO:Pharmaceutical compositions having oxytocic activity comprise 1-(2-quinolyl)-piperazine or a salt thereof, e.g. the maleate. They may be in conventional forms, e.g. a syrup, elixir, solid composition or injectable solution.
Patent GB-880444-A (GB)
Title: A template-controlled flame cutting device for cutting tubes
IPC: B23K7/00
Filed: 1960-02-04
Abstract: 880,444. Cutting by fusion. MULLER, J., and MULLER, W. Feb. 4, 1960, No. 4056/60. Class 83 (4). A template controlled flame-cutting machine for profiling tubes 27 comprises a holder 1 for the tube rotatable about its longitudinal axis, and a push-rod 13 mounted in a frame 5 adapted to swing about the tube axis and carrying a cutting torch 24 and a feeler 16 co-operating with a template 17. Torch 24 is mounted for vertical adjustment by hand wheel 21 in a bracket 19 adjustable horizontally by a hand wheel 20. The rod 13 moves longitudinally on rollers 12 and carries a motor 14 driving a magnetic roller 16 engaging the template 17. Tube 27 is clamped in a chuck 40 carried by the holder 1 rotatably mounted in bearings 2 in a base 3 and driven through gearing 28, 29 by a motor 30; a brake is incorporated in the drive. The swinging frame 5 carrying the rod 13 enables complicated profiles 32 to be cut; it is biased by a counter-weight and may be locked to the base by a spring-loaded pin 9. Control contacts may be provided to effect stopping or starting of the motor 30 or to vary its speed if the swinging frame 5 exceeds a predetermined angular movement.
Patent GB-957566-A (GB)
Title: Process for the manufacture of shaped objects of foamed glass
Inventor: TIITOLA RISTO
IPC: C03C11/00
Filed: 1962-02-02
Abstract: A process for the continuous manufacture of foamed glass objects e.g. plates or sheets comprises pressing foamed glass pellets or nodules the surfaces at least being at softening temperature whereby the pellets or nodules coalesce. The pellets may be fed in a layer on to a conveyer (belt and/or suitable pressing moulds) and subjected to pressure by means of rollers, press or reciprocating stamping machine.  The pellets may be fed hot on to the conveyer or heated on the conveyer.  The mechanical strength and heat insulation capacity of the final product is modified by varying the thickness or density of the surface layer and by controlling the dimensions of the pellets and method of pressing, or by vibrating the pellets on the conveyer before pressing.
Patent GB-554851-A (GB)
Title: Electron discharge apparatus
IPC: H01J21/02
Filed: 1942-03-28
Abstract: 554,851. Thermionic valves and circuits therefor ; electron multipliers. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). March 28, 1942, No. 4173. [Classes 39 (i) and 40 (v)] In an electron discharge device a plane surface cathode 14, Fig. 2-which may be thermionic or photo-electric-is used with a control grid 15 coplanar with the cathode ; a screen electrode 16 at cathode potential is arranged beyond the grid and an accelerating electrode 21 surrounds the grid and screen. On the side of grid remote from the emissive surface of the cathode is arranged a target electrode 19, which may be the output anode or the first or only secondary emitting electrode of an electron multiplier with output 20. An electromagnet 22 together with the field due to the electrode 21 constrains electrons from the cathode to follow a curved path ; with the grid at cathode potential the electrons flow to the screen 16 and accelerator, but if the grid swings positive due to an incoming signal through transformer T<SP>1</SP>, part of the electron stream flows to the target 19. The arrangement shown is for use as an amplifier but the device may be used as an oscillation generator or detector. A directly heated ribbon cathode may be used. In a modification acting as a push-pull amplifier the cathode 14a, Fig. 3, has emitting material on each surface and on each side thereof, a control grid 15a, 15b, screens 16a, 16b, an accelerating electrode 21a, 21b, and a target or output anode 19a, 19b. An electromagnet, not shown, causes electron flow in curved paths. The two targets are connected together and to a blocking condenser 30a, and the two accelerators which also act as output anodes are connected to a condenser 30b. Biasing potentials are provided by the source 31, through resistance 33 to the four anodes. An output circuit may be connected across the resistances 34a, 34b, whose junction point is grounded. According to the potential of the grids current flow is to the targets or to the accelerator anodes.
Patent GB-310585-A (GB)
Title: Improvements in and relating to mercury or the like switches
IPC: H01H29/30
Filed: 1928-02-10
Abstract: 310,585. British Thomson-Houston Co., Ltd., and Garton, C. G. Feb. 10, 1928. Imitation fires.-A flickering light effect, specially useful in connection with advertising devices and " imitation coal " electric fires, is produced by connecting one or more electric lamps to a corresponding number of terminals arranged just above the surface of mercury or other conducting liquid in a sealed vessel, the surface of the liquid being agitated. The agitation is produced by boiling the mercury by an external or internal source of heat and the sparks between the mercury and the terminals may contribute to the flickering effect. The container may be evacuated or contain an inert gas and the surface of the mercury may be covered by an inert substance which boils at a higher temperature than mercury. The terminals may be of iron, tungsten or platinum and alkali metals or alloys may be used instead of mercury. Instead of external lamps, a filament within the container may be used. the filament assisting to boil the mercury. The Provisional Specification states that the agitation of the surface of the mercury may also be effected by mechanical or electromagnetic means.
Patent GB-137157-A (GB)
Title: A mechanical device for variable speed transmission
IPC: F16H15/28
Filed: 1919-02-21
Abstract: 137,157. Wright, H. H., and Humphreys, T. Feb. 21, 1919. Variable-speed friction gearing comprises two cups or friction gear members b, d which are secured to driving and driven shafts a, c respectively, and taken together form a sphere. They are geared together by a pair of rollers h, i secured to a spindle g carried in a frame f adapted to turn about a pivotal axis c. As the frame f is moved, the speed of the shaft c is varied. Reversed driving may be effected by connecting the rollers h, i by suitable gearing.
Patent GB-397120-A (GB)
Title: Improvements in flying machines, and in apparatus for the propulsion of fluids
IPC: B64C27/02
Filed: 1932-02-15
Abstract: 397,120. Screw fans. PITTER, W. C., 59, Bower Hill, Epping, Essex. Feb. 15, 1932, No. 4430. [Class 110 (i).] Means for lifting flying machines or for propelling fluids comprise radial wings or blades freely rotatable about a fixed shaft and mechanically oscillated about pivots in a plane or planes at right-angles to the axis of the fixed shaft. In one form, Figs. 1 and 3, a supporting system for a flying machine comprises a fixed shaft a on which a sleeve b is freely rotatable between thrust bearings d. Sleeve b may be in two parts. Four wings f<1> . . f<4> carried by arms r<1> .. r<4> are hinged to sleeve b by horizontal hinges g<1> .. g<4>. Arms r<2>, r<4> are extended beyond their pivots and cranked at x to clear arms r<1>, r<3>. Connecting rods are articulated to the wing arms at p<1> . . p<4> respectively and to a sleeve i keyed to sleeve b but capable of reciprocating thereon. Sleeve i is reciprocated by connecting-rods m articulated to a powerdriven slider l. The blades may be of the type described in Specification 7745/09, [Class 4, Aeronautics]. In one form, Fig. 4, blade arms r are carried by sockets s in which they are permitted limited rotation but are restrained from axial movement by pin s<1> passing through the blade shafts and sliding in slots s<2>. The blade is floatingly maintained in its normal position by oppositely coiled springs r<6>, r<9>. In a modified blade mounting helical springs connect the socket to radial arms on the blade shaft. In another modified arrangement pairs of blades are mounted on vertically spaced pivots and have their sockets forked to embrace the sleeve b. In this form successive pivots are mutually displaced by 180‹ radially of shaft a and the blades of successive pairs are arranged to be oppositely reciprocated.
Patent GB-311455-A (GB)
Title: Improvements in or relating to suit cases or the like
IPC: A45C3/00
Filed: 1928-02-13
Abstract: 311,455. Sild, A. B. Feb. 13, 1928. Cabinets. - Relates to suit or garment carrying cases adapted to serve also as wardrobes. Fig. 3 shows one construction, typical of many examples described. The case comprises an inner container part 2, which may be a dressing case of the double form shown in Fig. 7. The side walls are made larger than the dimensions of the inner part proper, to afford a garment receiving space 5 when the wardrobe part 1 is folded around the inner part and secured thereto to produce the complete carrying case. The hanging wardrobe part 1, brought into use as such by suitably supporting the fixed part of the construction, is provided with a support for garment hangers and may be equipped with one or more aprons or covers 21, 22. The aprons are fitted with stretchers 23, 24 and may have straps 26, Fig. 4, and spring-hook fasteners 25. Fig. 10 shows a construction in which the part 2 is in two half portions each hinged to an end of the garment-carrying part. Fig. 12 shows the part 2 mounted within an open frame the bottom and hinged sides of which constitute the garment-carrying part. To provide for the hanging clear of the floor of garments of unusual length, the wardrobe part may be secured to the lid of the inner container in the manner shown in Fig. 14. Fig. 18 shows a tapered form of garment space 5 which may be provided. Fig. 19 shows a construction in which the wardrobe part 1 is completely detachable from the container portion. Specification 303,398 is referred to.
Patent GB-1142983-A (GB)
Title: Improvements in and relating to piezo-electric transducers
IPC: G01L9/00
Filed: 1968-01-29
Abstract: 1,142,983. Piezo-electric transducers. H. LIST. Jan.29, 1968 [Feb. 9, 1967], No. 4451/68. Heading G1N. A Piezo-electric transducer Fig. 1 comprises a number of Piezo-electric discs 9 located in the bore 5 of a cylindrical member 3, inserted in a housing 2. A disc electrode 10 rests on the top of the disc pile 9 and a shim 12 is located at the bottom, resting on a cup spring membrane 14 whose periphery 15 centres and seals the disc pile, and whose central portion comprises a forcetransmitting boss 16 located in a roller membrane 18 which seals a chamber 20 between the member 3 and an outer housing 2, through which cold water is circulated. The Piezo-electric discs 9 are insulated from member 3 by tube 8. The membrane 14 provides a perdetermined axial prestress for the Piezo-electric element. In modifications the outer housing 2 and the water-cooling system is deleted, and the Piezo-electric disc assembly may be inter-connected by diffusion welding, eliminating the need for the insulating tube 8.
Patent GB-1440978-A (GB)
Title: Marine vessels for recovering floating pollution
IPC: E02B15/04
Filed: 1974-01-31
Abstract: 1440978 Scavenging vessel W H SANDFORD 24 Oct 1974 [25 July 1973 31 Jan 1974] 35359/73 and 04453/74 Heading B7A A scavenging vessel has a settling hold 3 of comparatively large area and capacity with one or more openings 8 to the sea and a vacuum tank 22 of smaller area is mounted above the hold communicating with it. A suction pump 24 is connected to the vacuum tank and pumps 16 plus outlets 9 cause a flow in relation to the hold which enables pollution to rise to the top of the hold and thence to the vacuum tank. A full head of water is maintained in the tank to prevent surging and facilitate separation and recovery of pollution. The suction pump serves to create and hold vacuum in the vacuum tank and to draw off trapped pollution.
Patent GB-511429-A (GB)
Title: Improved day and night box sign for advertising or other uses
IPC: G09F13/08
Filed: 1939-03-13
Abstract: 511,429. Changing signs. OSBORNE, S. March 13, 1939, No. 4503/38. [Class 3 (i)] In box signs of the type comprising three superposed translucent screens, the front screen is of wire gauze and bears display matter which does not fill the interstices, the middle screen is a uniform film of cellulose acetate, celluloid, &c. of a smoke grey colour, and the back screen bears display matter which may be opaque. Artificial light is provided behind the screens, and optionally in front thereof, and thermo, magnetic, motor-driven, &c., switches may be provided to illuminate the two sources alternately and so display in turn the matter on the front and on the rear screen. A canopy may be provided on the front of the sign to shade it from intense daylight which would prevent the rear screen being seen when illuminated from behind. The screens may be bound together as a unit, preferably between glass sheets.
Patent GB-651867-A (GB)
Title: Improvements relating to indicating instruments
IPC: G01R1/14
Filed: 1948-02-17
Abstract: 651,867. Electromagnetic ammeters and voltmeters. GENERAL MOTORS CORPORATION. Feb. 17, 1948, No. 4579. Convention date, April 22, 1947. [Class 37] [Also in Groups XIX and XXXII] An indicating-instrument comprises a pair of relatively movable parts, one bearing in the other, with silicone fluid between the parts adjacent the bearing to damp vibrations, the silicone fluid being of such viscosity as to retain itself between the parts. An ammeter 10, which may be set in a casing or on a panel, is mounted on a frame 11 and held by bolts at 13 which also act as electrical connections, one being in contact with the frame and the other 15 insulated therefrom by a washer 17 and pad 18. A coil 21 is supported on a bridge 20 riveted to the frame 11 at 19 and has one end earthed to the frame and the other connected by a conductor 16 to the bolt 15. The coil 21 and a pole-piece 23 are secured below the bridge by an extension of the coil core 24. The transverse section 25 of the frame 11 is formed with lugs 27 for holding a permanent magnet 26 and legs 32 for bearing one end of a shaft 34 upon which is secured an armature 35, in line with the pole-piece 23, and a pointer 36. To dampen the oscillations of the pointer 36, a few drops of high viscosity liquid 40, such as silicone fluid, are placed between a disc 39 secured to the shaft and the adjacent surface 31 of the frame. The surface tension and wetting ability of the liquid must be such as to retain the liquid without constructional confining means about its perimeter against centrifugal forces and gravity. The space between the disc 39 and surface 31 will vary according to the properties of the liquid used and the degree of damping required. A silicone fluid with viscosity of 203,000 centistokes at 25‹ C. may be used with a disc of ¢ inch diameter spaced 0.014 inch from the surface 31. A smaller damping effect may be obtained by omitting the disc 39 and placing the fluid in the pivot bearing. A very small area of fluid contact is required when using silicone fluids whose viscosity lies between 175,000 and 250,000 centistokes at 25 ‹ C.
Patent GB-342544-A (GB)
Title: Improvements in the manufacture of keys
IPC: B21D53/42
Filed: 1930-02-12
Abstract: 342,544. Keys. PARKES & SONS, Ltd., J., PARKES, H. G., and FRYER, E. C., Union Works, Willenhall, Staffordshire. Feb. 12, 1930, No. 4695. [Class 44.] Keys are blanked out from a beaded metal strip Aa. The web of the strip is cut away as shown in Fig. 4, the ring G is then bent as shown in Fig. 5, and finished as necessary. In a modification the ring G is welded on a shank and bit made from the strip. A collar H may be worked on the shank. In a further modification a double beaded strip is used
Patent GB-1172451-A (GB)
Title: Means for supporting cooking trays and the like
IPC: F24C15/16
Filed: 1967-01-31
Abstract: 1,172,451. Griller tray support. CRAIG & SEELEY Ltd. 31 Jan., 1967 [1 Feb., 1966], No. 4737/67. Heading A4D. A supporting means for a griller tray or carrier therefor comprises two swing- ing arms 4, 5 pivotally supported at or near one end thereof to the stove, said tray or carrier therefor being pivotally supported by the arms at or near the opposite ends thereof so that the pivotal supports are disposed at the apices of a parallelogram and the tray or carrier will swing in a horizontal plane between a work position in a cooking area of the stove and a position away from the cooking area. The supporting arm 4 comprises a vertical pivot socket which swings on a pin mounted in bracket 13 which is fixed to the stove, and a horizontally extending arm member 9a having four radiating fingers 11 at its free end. The arm 5 comprises a straight section 12 and oppositely directed end portions at right angles to section 12, one portion fitting into an aperture in carrier 6, and the other portion fitting into an aperture in bracket 13. Arm 4 is secured to carrier 6 by a rivet passing freely through the carrier to an aperture in the centre of supporting fingers 11.
Patent GB-1502014-A (GB)
Title: Cyclo-olefin polymerization catalysts and their use
IPC: C08G61/08
Filed: 1975-02-04
Abstract: 1502014 Polymerisation catalysts INSTITUT FRANCAIS DU PETROLE 4 Feb 1975 [4 Feb 1974 21 May 1974 20 Nov 1974] 4737/75 Heading B1E [Also in Division C3] Catalysts for the polymerisation of cycloolefins comprise (a) a molybdenum or tungsten carbonyl compound and (b) titanium tetrachloride. The carbonyl compound may be of formula: where L is a polar molecule such as an ether, amine, nitrile, ketone, pyridine, phosphine, arsine, stilbine or a phosphorus, arsenic or antimony trihalide, M is molybdenum or tungsten, z is 0 or I to 5, y is 6-zN where N is the number of polar groups in L. The catalyst may be irradiated before or during use with radiation of wave length 180 to 700 nm, and its activity increased by preheating to a temperature above the reaction temperature. Examples describe the polymerisation of cyclopentene in the presence of catalysts comprising titanium tetrachloride and (7) tungsten penta carbonyl/pyridine, (8) tungsten tetra carbonyl/dipyridine, (9) tungsten tricarbonyl/tris acetonitrile and (13-15) mixtures of tungsten tricarbonyl/tris acetonitrile and tungsten tetracarbonyl/bis acetonitrile complexes, and (16 and 17) tungsten hexacarbonyl, with and without irradiation by UV light.