baber/WOPTO huggingface dataset:
Patent GB-493864-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03D11/02
Filed: 1937-04-15
Abstract: 493,864. Wireless receiving systems. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. April 15, 1937, No. 10817. Drawings to Specification. [Class 40 (v)] In a wireless receiver (other than one operating on the super-regenerative principle) interference, e.g. from ignition systems of motor vehicles, is reduced by periodically rendering one or more in the receiver inoperative for short periods at a frequency higher than the highest modulation frequency and lower than the carrier frequency. The periodic control may be effected by an oscillating pentode valve connected as a shunt across the input circuit of a receiver or supplying negative pulses to the grids of one or more valves in the receiver, e.g. in the intermediate frequency stage of a superheterodyne receiver. The duration of the inoperative period may be controlled by varying a resistance in the grid circuit of the pentode. A rejector circuit, tuned to the frequency of the pentode, may be connected between the pentode and the circuit controlled. Specification 455,298 is referred to.
Patent GB-1391741-A (GB)
Title: Spools for image-reproducing ribbons for example typewriter ribbons
IPC: B65H75/14
Filed: 1973-03-06
Abstract: 1391741 Ink-ribbon spools FRANZ BUTTNER AG 6 March 1973 [6 March 1972] 10869/73 Heading B8M A spool, e.g. for typewriter ribbon comprises two separate sets of components attachable to one another, the one set being a one-piece hollow core 4 having hooks for securing the end of the ribbon, and the other set being two flanges 1a, wherein at least one of the sets is provided with means for centering the flanges relative to the core, the centering means not projecting beyond the width of the core. The centering means may comprise an annular projection or a plurality of annularly disposed projections 2, 3 which are a friction-fit in the core 4. In a further embodiment the centering means is combined with securing means and is in the form of complementary projections and recesses 7, 8 on the core and flanges. The two sets may be secured by tack-welding or adhesive. In a preferred embodiment the components are moulded from plastics material.
Patent GB-288438-A (GB)
Title: A childrens' toy or recreation device
IPC: A63H33/00
Filed: 1927-04-23
Abstract: 288,438. Monaghan, C. April 23, 1927. Hand-propelled vehicles.-A child's toy vehicle or recreation device constructed to resemble an aeroplane, and adapted to be pushed along by means of a handle, comprises a frame 1 provided with a handle 3, a U-shaped bracket 5 supporting the spindle 6 of a ground wheel 7, wings 4 resembling the wings of an aeroplane, and a propeller 10 mounted on a spindle 11, which is supported in a U-shaped bearing-piece 2 on the frame 1 and is rotated by an endless cord or belt 14 from the wheel 7 or from a grooved pulley on the spindle 6. A strut 9 keeps the frame 1 rigid. The wings &c. may be folded up or collapsed The propeller may be painted or decked with streamers, and may sound a whistle, horn, or clapper. Two or more propellers may be provided. According to the provisional Specification, the frame may carry a seat and foot-rests, and may be replaced by. or form part of, a bogie frame, which is mounted on three or four wheels and is adapted to be pushed along, or propelled by a rider actuating pedals &c.
Patent GB-1014097-A (GB)
Title: Electrical insulation for condenser bushings and the like
IPC: H01B3/48
Filed: 1964-03-16
Abstract: Electrical insulation sheet material, which can be laminated by hot-pressing superposed layers or can be wound around a former with or without interleaved aluminium foils or around a conductor to produce condensers, insulation sleeves and the like, comprises fibrous cellulosic sheet, e.g. paper or cotton fabric, impregnated with 0.02%-10% of melamine and/or dicyandiamide and coated with an epoxy resin derived from 3,4 - epoxy - 6 - methylcyclohexyl methyl - 3,4 - epoxy - 6 - methyl cyclohexane carboxylate, or dicyclopentadiene dioxide, cross-linked with an anhydride.  The impregnant preferably includes a minor proportion of polyacrylamide and the anhydride cross-linking agent for the epoxy resin preferably comprises 40-60% of the resin weight of maleic anhydride plus 10% of an aliphatic polyol such as trimethylol propane.  The sheet material also preferably contains 5-20% of a fire-retardant such as ammonium sulphamate, ammonium phosphate, a chlorinated polyvinyl resin or tetrakis hydroxymethyl phosphonium chloride.  The cured products combine a low power factor with heat-stability and the dried material before curing is stated to be capable of prolonged storage, particularly when the dicyclopentadiene epoxy resin is used.
Patent GB-625420-A (GB)
Title: Improved regenerator, more particularly for use in a hot-gas engine
IPC: F02G1/057
Filed: 1946-04-10
Abstract: 625,420. Regenerators. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 10, 1946, No. 11000. Convention date, Sept. 2, 1941. [Classes 64(i) and 64(ii)] [Also in Group XXVII] A regenerator particularly for a hot-gas engine includes a filling mass comprising wire, the wire exhibiting a pattern obtained by winding a coil in layers with a space between adjacent turns of any given layer, the turns of one layer crossing those of the layer beneath at an angle, the filling mass consisting of one or more such coils or of portions cut from such a coil or coils. The thickness of the wire is preferably not greater than 0.5 mm. In the embodiment of the invention described the wire is of chromium nickel and its thickness is preferably 0.03 mm. Fig. 2 illustrates a coil of such wire. This is impregnated with a binder such as paraffin wax and subsequently is cut along the line V and developed. In this way the developed view of Fig. 3 is obtained. Portions having the desired shape are cut from the developed coil and are piled in the regenerator chamber. Fig. 3 represents the outlines of three portions which are cut from the developed coil. Fig. 4 shows how such portions permit an annular filling mass to be built in the regenerator. After piling the portions in the regenerator chamber and after compressing them the binder is removed.
Patent GB-1028725-A (GB)
Title: Improvements relating to lightweight portable fire extinguishers
Inventor: POTTS ERIC
IPC: A62C13/00
Filed: 1964-03-16
Abstract: In the method of making a hollow body for a portable fire extinguisher as claimed in the main claim of the parent Specification the cups are moulded from a material which comprises chopped glass fibres in mat form heavily coated with epoxy resin, and a filler.
Patent GB-759081-A (GB)
Title: Improvements relating to machines for the production of coated tablets and the like
IPC: B30B11/34
Filed: 1954-04-15
Abstract: 759,081. Moulding coated tablets. HOLROYD & CO., Ltd., J., and STOTT, F. T. March 7, 1955 [April 15, 1954], No. 11095/54. Class 87(2) A tablet core 4 is formed in a die 3 between plungers 7, 8 all mounted in continuously rotating tables. The core is ejected by the plunger 8 into a sleeve 43 on a bracket 33 mounted by means of springs 35, 38 on a plate 30 rotating in synchronism with the moulding machine over a bridge 27. The sleeve is centred with respect to the die by a fork 41 on the bracket which engages a boss 48 during a short period of the rotation of the plate 30. The core is rotated until the fork 41 engages a boss 42 on a rotary table machine for moulding the coating on the core. The sleeve is thus aligned with a die 19, which already contains a layer of powder 52 to form the bottom of the coating, and a cam 26 allows the sleeve 43 to fall into the die under the action of a weight 46. The cam 26 then lifts first the sleeve and then the weight (owing to a. slot 47 in the weight to leave the core in the die. Further coating material is supplied to the die and the whole pressed between plungers 14, 17. The plunger 14 then ejects the coated tablet which is guided by a strip 53 into a take-off shoot (see Fig. 9, not shown). To take a sample of a core. a lever is operated (see Fig. 6, not shown) which closes the take-off shoot and opens an auxiliary shoot, and also causes a member in a cam 23 controlling the plunger 14 to be raised to eject the core before the plunger 17 is lowered, so that the core is not coated.
Patent GB-811435-A (GB)
Title: Improvements in gas shielded arc welding
IPC: B23K9/173
Filed: 1955-04-18
Abstract: 811,435. Welding by fusion. AIR REDUCTION CO. Inc. April 18, 1955 [April 29, 1954], No. 11117/ 55. Class 83 (4). In inert gas shielded arc welding in which the arc is shielded by a stream of inert monatomic gas, the shielding gas is surrounded by a stream of polyatomic gas, having a density greater than or not appreciably less than air. The inner stream consists of argon and/or helium and may include a small proportion of active gases, e.g. 2 per cent oxygen. For welding nickel, or carbon or low alloy steel, an outer layer of carbon dioxide is used. The carbon dioxide is replaced by nitrogen when copper or copper base alloys are to be welded. The welding head which may be mounted on a motorized carriage consists of a double-walled tubular guide 42 partitioned longitudinally to provide passages 48, 49 for cooling water, and having a member 37 making electrical contact with a consumable electrode W. The shielding gases are fed through concentric tubes 38, 39 having convergent nozzles the outer of which projects beyond the inner and may have an oval section. A diffuser 46 is provided in each gas passage to ensure a non-turbulent stream. The outer tube 39 is provided with an annular cooling jacket 50. In a modification, a non-consumable electrode is used. Specification 087,666 is referred to.
Patent GB-912602-A (GB)
Title: Improvements in turboalternator sets
IPC: H02K19/38
Filed: 1960-03-30
Abstract: 912,602. Dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA A.B. March 30, 1960 [March 31, 1959], No.11156/60. Class 35. [Also in Group XXXVI] The shafts 1, 3 of a generator and an exciter contain electric conductors 5, 6 and 7, 8 respectively, which terminate in co-operating contact studs 30, 9 at the ends of the shafts so that when said ends are mechanically coupled together simultaneous electrical connection of the machines is effected. The contacts screw into sector-shaped plates 21, 10 respectively connected to the conductors in the shafts, the connections 14 between the plates 10 and conductors 7, 8 being flexible to permit movement of said plates under the influence of springs 12 whereby the contacts are maintained in engagement such movement being limited by engagement of radial projections 36 on the plates 10 with insulators 17, 18.
Patent GB-1255060-A (GB)
Title: Nitramine salts
Inventor: REISSER FRITZ
IPC: C07D249/14
Filed: 1969-03-03
Abstract: 1,255,060. Pesticides containing nitramine salts of fatty amines. SANDOZ Ltd. 3 March, 1969 [16 April, 1968], No. 11218/69. Heading A5E. [Also in Division C2] Fungicidal and acaricidal compositions comprise amine salts of the formula: wherein R 1  and R 2  represent hydrogen or a C 1-4  alkyl group and R 3  represents a C 10-16  alkyl group, in combination with an inert carrier or diluent. The compositions may take the usual forms, including a plant wound dressing, and include conventional adjuvants. The amine salts may be used in combination with known fungicides, e.g. flowers of sulphur, thiurams and thiocarbamates. Examples a-c describe the preparation and application a wettable powder and an emulsifiable concentrate and Example d relates to the preparation of a weatherproof wound dressing.
Patent GB-610937-A (GB)
Title: Improvements in the manufacture of phenolic resins for casting
IPC: C08K5/12
Filed: 1946-04-11
Abstract: A process for the manufacture of cast phenolic resins in which phenol and aqueous formaldehyde are reacted under reflux in the presence of an alkaline catalyst, whereafter the reaction mixture is acidified and vacuum dehydrated, and a plasticiser added, so that a syrup is obtained for casting and subsequent curing is characterized by employing as a plasticiser a product formed by the reaction of an excess of glycerol with phthalic anhydride so that a complex is produced which is compatible with both the resin and water.  The plasticiser is made by heating a sufficient excess of glycerol with the phthalic anhydride to ensure free hydroxyl groups in the product until the product has an acid value between 5 and 10, and is preferably added to the resin in amount 30-45 per cent based on the weight of the phenol.  In an example, phenol formalin and sodium bicarbonate catalyst are refluxed followed by acidification with lactic acid and dehydration under vacuum.  The glyceryl phthalate plasticiser is added and the dehydration continued.  Colouring matter dissolved or pasted with diacetin or glycerine is added and the product cast into moulds and baked.  The glyceryl phthalate plasticiser is prepared by heating a mixture of excess glycerol with phthalic anhydride, and butyl phthalyl butyl glycollate to retard gelation of the glyceryl phthalate product.  The mixture is kept in an atmosphere of carbon dioxide or nitrogen during the reaction.
Patent GB-119056-A (GB)
Title: An Improved Tubulous Heater for Air, Water, or other Fluid.
Inventor: DODD HENRY STANSFIELD
IPC: F24H1/14
Filed: 1917-08-03
Abstract: 119,056. Dodd, H. S. Aug. 3, 1917. Multitubular boilers. - In a tubular steamgenerator comprising a casing, a combustion chamber within the upper part of the casing, firetubes connecting the combustion chamber to a chamber in the lower part of the casing, and a pump for withdrawing the products of combustion, the combustion chamber is situated entirely within the casing, and a flue-pipe extends from the lower chamber through the lower end of the casing. Water enters at the bottom of the casing 2 through a pipe 6, and passes upwards through tubes 13 placed inside the fire-tubes 14 between the combustion chamber 9 and the lower chamber 15. The flue-pipe 16 passes through a stuffing- box 17 and opens into a pipe 18 connected to an exhaust pump 19. Gas is supplied to the burner 8 through a mercury valve 36. An outlet 50 leading from the top of the combustion chamber is fitted with a flap-yalve 4.
Patent GB-1084867-A (GB)
Title: New or improved playing-card holder
Inventor: FOSTER WILLIAM
IPC: A63F1/10
Filed: 1965-03-17
Abstract: 1,084,867. Playing card holders. FOSTER BROS. (RAINFORD) Ltd. March 11, 1966 [March 17, 1965], No. 11248/65. Heading A6H. As shown in Figs. 1 and 2, a playing card holder comprises a pair of disc or plate-like members (10) held together resiliently by means of a helically wound extension spring (12) the ends (13) of which extend through apertures provided in the disc or plate-like members and are fitted with corresponding screw-threaded nut components (15). The peripheral edges of the disc or plate-like members may be reversely flanged or bevelled at about 45‹ and are dished to accommodate the middle of the spring which has a greater diameter than the ends thereof. The card holder may be provided with a hand grip.
Patent GB-949898-A (GB)
Title: Electric circuit interrupters
IPC: H01H75/04
Filed: 1962-04-30
Abstract: 949,898. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC CORPORATION. April 30, 1962 [May 31, 1961], No. 16317/62. Headings H2B and H2K. A switch comprises a tripping device 15 effective to cause separation of the contacts 12, a counting means 30 which is advanced step-bystep towards the tripping device 15 on each occurrence of a predetermined circuit condition, e.g. excess current, and a member 31 between the counting means 30 and the device 15, the member 31 being movable to alter the number of occurrences necessary to cause tripping in the case of the line sectionalizing switch shown or lockout in the case of an automatic reclosing circuit-breaker. The means 30 is provided with a head 49 having trip surfaces 50, 51 and the member 31 is movable laterally from the position in which it cooperates with the surface 51 to that in which it co-operates with the surface 50 to alter the number of occurrences necessary to cause tripping or lockout. The member 31 is moved against the action of a spring 43 when a coil 39 is energized. The coil may be connected to a voltage transformer 61 so that the number of occurrences to produce tripping or lockout is changed in response to a loss of voltage in the system. Figs. 3 and 4 (not shown) illustrate other arrangements of the head 49.
Patent GB-1208386-A (GB)
Title: Oxidation of cyclohexane
IPC: C07C29/52
Filed: 1969-03-03
Abstract: 1,208,386. Oxidation of cyclohexane. SUMITOMO CHEMICAL CO. Ltd. 3 March, 1969 [6 March, 1968; 23 Oct., 1968], No. 11321/69. Heading C2C. Cyclohexanol and cyclohexanone are prepared by oxidizing cyclohexane in the liquid phase with molecular oxygen or a molecular oxygen-containing gas at a temperature of 100 to 300 C. in the presence of a transition metal borate, e.g. Co and/or Mn borates, preferably a cobalt borate wherein the Co/B 2  molar ratio is in the range 0À5 : 1 to 4 : 1. The reaction takes place preferably under anhydrous conditions.
Patent GB-1485663-A (GB)
Title: Details of an uphole receiver for a logging-while-drilling system
IPC: E21B47/18
Filed: 1975-03-19
Abstract: 1485663 Telemetering by sound waves MOBIL OIL CORP 19 March 1975 11430/75 Heading G4F In an acoustic telemetry system using a phase-shifted acoustic signal through a liquid path from a down-hole transmitter in a logging- while-drilling system, a receiving apparatus utilizes a reference signal generator 22 responsive to one phase state of a receiver output signal and a correlator 23 supplied with the output signal and the reference signal. In the embodiment the receiving and detecting apparatus incorporates an integrator 24 from which a bistable 29 is set to afford the information-bit output, and a further integrator 25 supplying a phase-error measuring system. Waveforms are given to illustrate the circuit operation, Figs. 4, 5, 6 (none shown), and the block diagram is described with reference to further detailed circuits, Fig. 3 (not shown).
Patent GB-1223558-A (GB)
Title: Improvements in or relating to apparatus for gauging the consistency of wet concrete
Inventor: GRANT NORMAN THOMAS
IPC: F02B1/04
Filed: 1967-03-10
Abstract: 1,223,558. Testing consistency of concrete. READY MIXED CONCRETE Ltd. March 8, 1968 [March 10, 1967], No. 11446/67. Heading G1S. A device for measuring the consistency or workability of wet concrete comprises a gauge, for measuring a pressure associated with the motor for driving a drum containing the concrete, to provide a measure of the effort exerted by the motor, comprising a pressure sensitive element, a pointer 11 and a scale carrier 10 one of which is connected to the pressure sensitive element and moves relative to the other in response to pressure changes, and an adjustable scale element 12 having consistency graduations swept by the pointer. In the embodiment described the drum is driven by a hydraulic motor, and the pressure of the hydraulic fluid is measured by a pressure element such as a Bourdon tube. The scale element 12 is adjustably mounted in a slot 14 for movement radially of the pointer circle. The device is initially calibrated using the graduations on the scale carrier.
Patent GB-701430-A (GB)
Title: Adjustable window screen
IPC: E06B9/54
Filed: 1952-05-06
Abstract: 701,430. Fly-screens. MAHLOUFF, S. K. May 6, 1952, No. 11462/52. Class 20 (3) A fly-screen for sliding sash windows is adjustable endwise to fit windows of different widths and vertically in accordance with the amount by which the window is opened. A screen is secured within a frame 6 and is mounted on a spring roller within a housing 8. A similar screen is secured within a frame 7 and to a spring roller within a housing 9. The frames 6, 7 and the housings 8, 9 are connected for relative endwise movement. The frames are clipped at 28, 29 to the bottom rail 32 of the lower sash and the housings are clipped to the sash guides.
Patent GB-824030-A (GB)
Title: Improvements in or relating to electric tumbler switches
Inventor: HUGHES JOHN GEORGE KENNETH
IPC: H01H23/12
Filed: 1957-04-09
Abstract: 824,030. Tumbler switches. VOLEX ELECTRICAL PRODUCTS Ltd., and HUGHES, J. G. K. April 8, 1958 [April 9, 1957], No. 11463/57. Class 38 (5). In a switch similar to that of Specification 772,781, an insulating rod 25 passes with considerable clearance through a hole 24 in the dolly 5. Each end of the rod carries an inverted U-shaped member 30 through slots in which passes a bridging contact 28 co-operating with fixed contacts 31. The rod is acted on by a spring 35 so that the contacts remain in engagement until the dolly has been moved some distance to take up the slack between rod 25 and the hole 24. The lower end of the dolly bears on a snap spring 14 supported by an earthing strip 13 connected to terminals 19. A cover with an indicator lamp may be arranged over the top of the cover 10 (Fig. 6, not shown), and this extra cover may also house a socket connected to the switch. Specification 812,890, [Group XXXVI], also is referred to.
Patent GB-791724-A (GB)
Title: Anti-skid tire or other rubber traction member
IPC: B60C11/18
Filed: 1956-04-16
Abstract: 791,724. Boots &c. GOODYEAR TIRE & RUBBER CO. April 16, 1956 [July 19, 1955], No. 11477/56. Classes 17(2) and 17(3) [Also in Group XXXIV] A shoe tread 11 has embedded therein an anti-skid insert 14 comprising a plurality of corrugated strips 15 of hard sheet material bonded together to form a structure of open-ended cells disposed with the axes of its cells 17 substantially normal to the tread surface and transversely of said strips. The inserts may be formed of strips of aluminium, brass, copper or the like, or of thermosetting resin reinforced with textile, glass or wire fabric, the strips having perforations 18 to provide a mechanical bond with the rubber. The individual rubber traction elements of the tread, such as the ribs 13, may each have an insert 14 therein extending the full length and depth of the element. As shown in Fig. 2 the strips 15 extend longitudinally of the insert and are formed with transversely extending corrugations, the strips being bonded together at abutting peaks 16 so that the bonds extend parallel with the axes of the cells. The corrugations may be shaped to provide hexagonal section cells, and, as shown in Fig. 4, the individual strips 15 may extend transversely of the insert.
Patent GB-413456-A (GB)
Title: Improvements in or relating to means for controlling aircraft
IPC: B64C9/00
Filed: 1933-04-19
Abstract: 413,456. Controlling aircraft. TOWER, L. R., and BOEING AIRPLANE CO., 200, West Michigan Street, Seattle, Washington, U.S.A. April 19, 1933, No. 11486. [Class 4.] Means for controlling aircraft comprise an auxiliary control surface 4 mounted at the trailing edge of a main control surface 2 and adapted to be angularly adjusted with respect thereto by means, independent of the control 23 for, and positioned to coincide with the pivot axis of, the control surface 2 to maintain the surface 4 in its adjusted position relatively to the surface 2 for all positions of the surface 2. As shown, the controls for the surface 4 comprise cables 42, 43 connected to king posts 41, guided by a fairlead 44 situated at the pivot axis, e.g. of the rudder 2 and extending forwards to a windlass 46 controlled by the pilot.