baber/WOPTO huggingface dataset:
Patent GB-726174-A (GB)
Title: Improvements in counter scales
IPC: G01G19/22
Filed: 1953-10-31
Abstract: 726,174. Weighing apparatus. AVERY, Ltd., W. & T. Oct. 31, 1953, No. 30122/53. Class 143. In an even-armed weighing scale the scale pans are mounted on carrier supports 3 forked at their outer ends and suspended from each side of a main weighbeam 5 by a pair of knife edges 4 and at their inner H-shaped ends connected by single links 11 with the inner single ends 8<SP>11</SP> of intermediate levers 8 centrally suspended from each side of the weighbeam 5 by a pair of links 7 and having outer semi-circular parts centrally connected by links 9 with fixed points or supports 10. In this, the Beranger system, the inventive feature is extending the inner ends 8<SP>11</SP> of the levers 8 and supports 3 at each side of the weigh scale in overlapping relation to increase their length and using single extensions, coupled by a single link 11, to reduce the number of pivots. To this end the inner ends 8<SP>11</SP> of levers 8 and supports 3 lie on opposite sides of the plane of symmetry of the scale, but are curved inwardly at their ends so that the links 11 lie in this plane. The equilibrium position of the scale is communicated through a bracket 16, supported on the inner end of one'of the supports 3, to a pointer 13 and scale 12, against the action of a counterweight 14.
Patent GB-468602-A (GB)
Title: Improvements in and relating to variable pitch air-screws
IPC: B64C11/42
Filed: 1936-11-05
Abstract: 468,602. Variable - pitch airscrews. JUNKERS FLUGZEUG-UND MOTORENWERKE AKT.-GES. Nov. 5, 1936. No. 30146. Convention date, Nov. 11, 1935. [Class 114] The blades of a variable-pitch airscrew are adjusted by hydraulic motor of the rotary kind through angles of 360‹ and over, the transmission members between it and the blade root are of high ratio and each element of the mechanism describes a purely rotational movement. The boss 5 is secured to a hollow shaft 1, driven by gear-wheels 51, 52 from the engine shaft 53. Mounted beyond the boss 5 is the gear-wheel motor 7, 8 connected by passages 35, 36 with a rotary pump 30, the passages having control valve 37 under the control of the lever 40 and a rod 41 which passes to the pilot's cockpit. When the valve 37 is in the neutral position, the pump supply is shortcircuited by valve 45. The spindles 9<1>, 10 of the motor 7, 8 are produced and carry worm wheels 13, 14 respectively, which gear with worms 15, 16 and other gear-wheels 21, 22 on the roots of the blades 11, 12. The setting of the blades is indicated by means of a screwed extension 46 on one of the operating members which acts upon a nut 47 and produces a motion endwise of the sleeve 49, movements of which are in turn transmitted to the cockpit by a rod 50. When the valve 37 is turned to the position of Fig. 1a, an increase of pitch of the blades is produced, and when turned to the position in Fig. 1b the pitch is decreased and if continued long enough the blades move into a braking position. In a modification, the pump supply is controlled by a piston valve 61 operated automatically by a centrifugal governor 65. The setting of this governor may be modified by altering the compression of the spring 68 through the levers 71, 74, 77 and the hand wheel 78. In a further modification, the gearwheel motor is mounted as at 88 immediately in front of the propeller boss and one shaft 83 is produced to carry a pinion 84 which gears internally with a pinion 85 having worm teeth externally engaging a number of worm wheels 90, one for each blade. In a modification of this arrangement, two motors of the gear type are provided, and drive a common bevel wheel from which the drive is taken to each blade. Alternatively, there may be gear-type motors of the same number as there are blades, the shafts of each one having a worm wheel which drives its particular worm gearing, and also has a bevel wheel meshing with a central common bevel wheel whereby movement of the three blades is synchronized.
Patent GB-262142-A (GB)
Title: Improvements in or relating to the manufacture of moulded articles
IPC: B29C63/00
Filed: 1926-11-29
Abstract: 262,142. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Mains, G. H.). Nov. 28, 1925, [Convention date]. Receiving-sets, construction of. - Moulded articles such as radio panels are provided with a surface finish by placing a surface layer of translucent material upon a layer of metallic material coated with a binding-agent placed on the outside of a body of mouldablematerial and subjecting the whole to heat and pressure. The metallic layer may consist of foil, metallic paper or paper having metals or metallic salts precipitated or deposited therein. As shown in Fig. 1, the body 1 comprises layers of fibrous material impregnated with phenolic condensation products and is combined with a metallic layer 2 and a sheet 3 of translucent material both of which are coated with the binding-agent.
Patent GB-664898-A (GB)
Title: Improvements in or relating to bridge devices and circuits for use at radio and higher frequencies
IPC: H01P5/20
Filed: 1949-11-25
Abstract: 664,898. Measuring impedances. SPERRY CORPORATION. Nov. 25, 1949 [Nov. 26. 1948], No. 30258/49. Class 37. [Also in Group XL (b)] An impedance measuring bridge comprises a generator 24 connected to a line 15 of a hybrid junction and an out of balance detector consisting of two diodes or crystals 31 and 33, a centre tapped resistor 35, and a galvanometer 37, is.connected to two conductors 23 and 25 proceeding from the junction. If the impedances Z<SP>1</SP> and Z<SP>2</SP> terminating the remaining lines 11 and 13 of the junction are equal, no indication appears on galvanometer 37 while generator 24 is operating, but if they are not equal current flows in the galvanometer. Fig. 4 shows a modification in which one arm of the junction is omitted. If the impedance Z is not matched to the arm 13 to which it is connected current flows in temperature sensitive resistance 29<SP>1</SP> producing an indication at the terminals of circuit 45, 47 and 49. Impedances are measured in this arrangement by comparison with the impedance of branch 13.
Patent GB-291419-A (GB)
Title: Catalytic oxidation of organic compounds
IPC: C07B35/04
Filed: 1927-11-11
Abstract: 291,419. Selden Co., (Assignees of Jaeger, A. 0.). June 3, 1927, [Convention date]. Oxygenated organic compounds. - Catalytic oxidation of organic compounds, particularly by action of an oxidizing gas upon the vapours, is controlled or limited to produce intermediate compounds by use in conjunction with the catalyst of a " stabilizer " which consists of a salt or compound of an alkali metal, alkaline earth metal, or metal which form basic oxides not reducible by hydrogen. Suitable salts are acid or neutral sulphates, phosphates, halides, chlorates, nitrates, cyanides, both simple and complex, arsenates, antimonates, bismuthates, borates. carbonates, &c. The stabilizer may be admixed with the catalyst or formed in its presence, or by reaction with acids or metal compounds other than the catalyst contained in contact masses. The effectiveness of the catalyst and the stabilizer is increased by the addition of substances referred to as " stabilizer " promoters " which consist of compounds of catalytic elements such as heavy metals, and amphoteric metals such as aluminim, zinc, lead, &c. which are not catalysts or are only mild catalysts for the particular reaction. Alkali metallates serve both as stabilizers and promoters. Catalysts together with stabilizers and promoters may be contained together in siliceous or non-siliceous base exchange bodies. Reactions which may be carried out are the oxidation of benzol, toluol, phenols, or furfurol to rnaleic and fumaric acids, of cresols to salicylaldehyde and salicylic acid, of toluol and halogen and nitro-substituted toluols to the corresponding aldehydes and acids, of xylenes, pseudocumenes, mesitylene, paracymene and other derivatives to the corresponding aldehydes and acids, of naphthalene to naphthaquinone, phthalic anhydride and maleic acid, of phthalic anhydride to maleic and fumaric acids, or anthracene to anthraquinone, of phenanthrene to phenanthraquinone and diphenic acid, of acenaphthene to acenaphthylene, acenaphthaquinone, bisacenaphthylidenedione, naphthaldehydic acid, naphthalic aldehyde, and hemimellitic acid, of fluorene to fluorenone, of eugenol and isoeugenol to vanillin and vanillic acid, of methyl alcohol and methane to formaldehyde, of ethyl alcohol to acetic acid, and of ethylene chlorhydrin to chloracetic acid. The catalysts may also be used for the purification of anthracene, coal tar ammonia, &c. Specifications 279,466, 280,712 and 281,307 are referred to.
Patent GB-745592-A (GB)
Title: Improvements in aircraft
IPC: B64C39/00
Filed: 1953-11-03
Abstract: 745,592. Aircraft. WARTO, A. Nov. 3, 1953, No. 30369/53. Class 4. An aircraft comprises a fuselage composed of two parts universally jointed together, the front part 2 having an annular cover 11 to which the rear part 6 is connected, said cover having projecting upwardly therefrom a vertical fin 1, and the rear part having a guide surface 22 for directing the air flow, together with retractable tailplanes 20. As shown, these latter are of elliptical plan form, and are rotatable about vertical axes 19 from the operative to the recessed position within fairings 21. Nose elevators 23 are also provided. The rear part supports a jet engine 7 and exhaust pipe 8. The cabin is indicated at 13, and main and auxiliary wings 14, 15 are attached to the cover 11. The part 6 and cover 11 may be attached through a gimbal system, the vertical axis of which is indicated at 10.
Patent GB-537073-A (GB)
Title: Improvements in or relating to apparatus for the administration of anaesthetics
IPC: A61M16/18
Filed: 1939-11-20
Abstract: 537,073. Anaesthetic apparatus. TALLEY, H. A. E., and MEDICAL & INDUSTRIAL EQUIPMENT, Ltd. Nov. 20, 1939, No. 30377. [Class 81 (ii)] [Also in Group XXIX] Anaesthetic apparatus comprising a bottle D arranged for both surface and bubble-through vaporization is provided with a delivery valve, controlling the long bubble-through tube B and short surface tube C, mounted transversely to the inlet and outlet passages F, G and comprising a rotary member having a transverse partition E<SP>5</SP> and ports E<SP>1</SP>-E<SP>4</SP> so proportioned relatively to the ports in the valve casing that gas may pass directly through the apparatus without contact with the liquid, or over the surface of the liquid or through the liquid in the bottle. If the valve is set so that the pointer X is directed towards position 1 on the drawing partition E<SP>5</SP> will be horizontal and gas will pass direct from inlet F to outlet G. If the pointer is directed to position 2 the port E<SP>1</SP> will be open, the port of the tube B will be closed and the port of tube C open, gas passing through tube C over the surface of the liquid to a port C<SP>1</SP> at the rear of the cock also controlled by the valve and thence to the outlet G. With the pointer in the position shown gas passes down tube B through the liquid and out through tube C to the outlet G.
Patent GB-1309773-A (GB)
Title: Reactor fuel
IPC: G21C3/62
Filed: 1970-06-23
Abstract: 1309773 Fuel material NUKEM NUKLEARCHEMIE UND-METALLURGIE GmbH 23 June 1970 [4 July 1969] 30380/70 Heading G6C In a nuclear fuel of UC, PuC or ThC, or mixtures of these carbides, the individual fuel carbide particles have a grain size of 0À01 to 2 mm. and are coated to a thickness of 1 to 10 microns with fuel nitride, sulphide or phosphide. Despite the low nitrogen, sulphur or phosphorus content (less than 1% by weight), these provide a stabilizing effect against water and oxygen. Since the fuel nitride, sulphide or phosphide form with the monocarbide continuous mixed crystals, it is additionally possible to prepare a single-phase nuclear fuel in the form of a modified monocarbide. One form of fuel is a sintered carbide particle, the individual crystallographic grains of fuel monocarbide each being surrounded by a coating of fuel nitride, sulphide or phosphide. An alternative form of fuel is a carbide particle surrounded by a coating of fuel nitride, sulphide or phosphide, which fuel is suitable for vibration-compacting in tubular sheaths. If the density and the corrosion resistance of the particles have to satisfy stringent requirements, the particles may be fused and in some cases coated with an addition metal or nitride, sulphide or phosphide layer. Carbide particles coated as described above may be converted under a pressure of 2 to 10 tonnes/ cm.<SP>2</SP> into mouldings with which tubular sheaths can be filled without subsequent sintering. Alternatively, carbide particles coated with a layer of metal formed as an intermediate product are converted into mouldings which are then calcined at a temperature around or above the m.p. of the metal layer and nitrided, sulphided or phosphided in a N 2 , H 2 S or H 3 P atmosphere.
Patent GB-947346-A (GB)
Title: Improvements in or relating to waterproof knicker-like garments
Inventor: HUNTER VALERIE MARGARET FRANCE
IPC: A41B13/04
Filed: 1961-08-24
Abstract: 947,346. Waterproof napkins. V.G. (INVERNESS) Ltd. Aug. 13, 1962 [Aug. 24, 1961], No. 30556/61. Heading A3V. A waterproof knicker-like garment or napkin comprises a symmetrical trapezoidal sheet of waterproof material, such as polyvinyl chloride or nylon film, having parallel top and bottom edges 10 and 11, Figs, 1 and 2, and converging side edges 12 and 13. Elestic material 27 is provided in the top edge, e.g. in a hem heat-sealed at 26, and pieces of elastic material 16 and 17 are provided, e.g. in heat-sealed hems 19 and 20, along part or the whole length of the side edges and anchored, as by heat-sealing, at points 21, 22 and 23, 24, so that gatherings are formed in the side edges, e.g. hems, between points 21 and 22 and points 23 and 24, Fig. 6. The length of the top edge 10 is between 60 and 100, preferably between 75 and 90% of the length of the sheet from top to bottom, measured along its centre-line 36. The length of the bottom edge 11 is between 30 and 70, preferably between 40 and 55% of the length of the top edge 10. The distance between the left-hand top corner and the point 21 and between the right-hand top corner and the point 23 may be between 10 and 40, preferably between 10 and 20% of the length of the ungathered side edges. The distance between the lefthand bottom corner and the point 22 and between the right-hand bottom corner and the point 24 may be between 25 and 45% of the length of said ungathered side edges. The bottom edge 11 may be reinforced with a three-layered heat-sealed hem. Plastic or metal press-stud sockets 29, 30 and corresponding spigots 31, 32 may be secured to the corners of the sheet, so that the garment may be fastened on a baby, Fig. 6. The edge 10 then becomes the upper rear gathered edge and the edge 11 the upper front edge of the garment. Heatsealing may be replaced by sewing. Specification 665,676 is referred to.
Patent GB-408171-A (GB)
Title: Box for containing chewing tobacco
IPC: B65D83/02
Filed: 1933-11-04
Abstract: 408,171. Boxes for tobacco. STOKKEBYE, E., 20, Overgade Odense, Denmark. Nov. 4, 1933, No. 30651. [Class 18.] A box to hold tobacco comprises a cylindrical disc 2 of cork &c. with longitudinal grooves on its curved surface rotatably mounted in a casing by means of a finger grip 9 which is pivoted in the lid of the casing and is releasably connected to the disc. The tobacco contained in the groove under an aperture 8 in the lid can be ejected through the aperture by a slide 5 which is provided with an external operating knob. The finger grip 9 has projections 10 to engage the disc. To indicate the number of grooves remaining undischarged, a ring of marks or numerals corresponding to the number of grooves is provided on the lid.
Patent GB-622677-A (GB)
Title: Improvements in or relating to the production of cellular concrete
IPC: B28B17/02
Filed: 1946-10-15
Abstract: Cellular concrete is prepared from a mixture of cement, sand, powdered aluminium, sodium carbonate or lime, calcium chloride and water, a preferred mix comprising equal proportions by weight of cement and sand, 0.2 per cent aluminium, 0.65 per cent lime, 2 per cent of calcium chloride and 88 per cent water, all percentages being by weight of cement.  Concrete slabs are prepared by mixing the dry cement, dry sand, and aluminium powder, and adding water mixed with lime or sodium carbonate and calcium chloride, the mix being heated, preferably by the use of water having a temperature of about 55 DEG C., and the final mix poured into moulds which are passed into saturated steam curing chambers. Facing materials, decorative surfaces and reinforcements may be applied in the moulds.
Patent GB-1059731-A (GB)
Title: Improvements in record changing phonographs
IPC: G11B19/265
Filed: 1962-08-10
Abstract: 1,059,731. Automatic record-changing gramophones. H. C. HANSON. Aug. 9. 1963 [Aug. 10, 1962; Sept. 10, 1962], Nos. 30713/62 and 34578/62. Heading G5R. An automatic record-changing gramophone having a turntable adapted to be driven at various speeds from a driving motor and having a rotatable cam controlling the change cycle, is characterized in that the motor drives the cam through a worm drive arrangement adapted to be engaged and disengaged at the motor at the beginning and end of the cycle. In Fig. 1 the shaft of the motor 16 carries a worm 62 which can engage a gear-wheel 64 carried by a shaft 60 which carries at its other end a worm 66 adapted to drive the cam 30. Shaft 60 can pivot slightly about a support 76 and is supported at its other end by a flange 70 on a lever 72 which is pivoted at 74. At the end of a record a strike lever 44 is engaged by an abutment 46 on the turntable spindle and rotates a lever 50 clockwise about its pivot 52, a snap action spring 54 controlling the lever 50 so that it can rest only in one extreme position or the other. A pin 48 depending from lever 50 into a slot 38 in lever 72 rotates lever 72 counter-clockwise and causes gear 64 to engage worm 62 and transmit the drive to the cam 30. At the end of a cycle a projection 32 on cam 30 engages pin 48 to restore levers 50 and 72 to their initial positions. In an alternative arrangement, Fig. 2 (not shown), the shaft 60 can be moved longitudinally by a dog engaging a washer fixed to the shaft. The dog is secured to a lever actuated by a spring carried on lever 50, and the longitudinal movement allows the gear 64 to engage and disengage the worm 62.
Patent GB-971070-A (GB)
Title: Molecular compounds of benzoic anhydride and compositions containing the same
IPC: D06L4/15
Filed: 1963-08-02
Abstract: The invention comprises molecular compounds of benzoic anhydride with urea or with urea and hydrogen peroxide and a method for preparing them by causing the compounds to crystallize together in the same crystal lattice.  The benzoic anhydride-urea compound may be converted to perbenzoic acid (e.g. with sodium perborate) more readily than benzoic anhydride itself (Example 7).ALSO:Bleaching compositions comprise (a) a solid source of active oxygen and a molecular compound of benzoic anhydride and urea, or (b) a molecular compound of benzoic anhydride, urea and hydrogen peroxide, and optionally a solid source of active oxygen.  Said oxygen source is preferably sodium perborate, sodium percarbonate or a ureahydrogen peroxide addition compound; it may also be in general, a percarbonate, perpyrophosphate, persulphate mineral peroxide or organic hydrogen peroxide addition compound.  The compositions may be used to bleach textile fibres made from natural or natural polymer or synthetic polymer man-made fibres.
Patent GB-749873-A (GB)
Title: Improved machine for grinding and/or lapping valve seats
Inventor: HOPKINSON IAN GEORGE
IPC: B24B15/02
Filed: 1953-11-09
Abstract: 749,873. Grinding valve seats. HOPKINSONS, Ltd. Jan. 19,1955 [Nov. 9, 1953], No. 30920/53. Class 60 A machine for grinding or lapping the seats of paralley slide valves comprises a frame a, c to be bolted to the lid flange of the valve, a cylinder structure e, f pivotally carried by trunnions d, two opposed grinding or lapping discs r mounted upon parts t, u capable of movement towards and away from each other, a double acting pneumatic piston h under control of a reversing valve i to reciprocate the parts, t, u and to actuate pawl and ratchet mechanisms n, q and x, z to rotate intermittently the, discs r and to cause the cylinder structure e, f to oscillate about the trunnions d, and pneumatic means (not shown) for applying pressure between the discs r and the valve seats. This last means consists of a valve for controlling the pressure of air supplied through a tube 9 to a space 11 between the parts t, u, spaces 12 being connected to exhaust through the same valve which may also be used to reverse the connections to the spaces 11, 12 and hence retract the discs r from contact with the valve faces. The air supply to the valve i is controlled by a stop valve j and the piston h is secured to a hollow piston rod g carrying a part s in which the discs r and two ratchet wheels q secured to the discs, are mounted. As the rod g reciprocates, spring-loaded pawls n pivotally supported by lugs m on the stationary cylinder structure e, f causes intermittent rotation of the wheels q and discs r. To oscillate the cylinder structure e, f further pawls x are pivotally supported by a head w on the rod g to actuate a ratchet wheel z having an eccentric boss around which is located one end of a link 4 the other end of the link being secured to a pin mounted in the frame a, c. A guard 22 protects the mechanism for rotating the discs r. The Provisional Specification states that the discs r may be mounted on ball heads so that they can adjust themselves to the valve seats and that they may be adjusted in relation to each other by a wedge mechanism.
Patent GB-1321904-A (GB)
Title: Pick-up having double modulation
IPC: G01R17/00
Filed: 1970-06-25
Abstract: 1321904 Measuring electrically the product of two mechanical quantities VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI 25 June 1970 [25 June 1969] 30958/70 Heading G1N In an apparatus for the direct measurement of the product of the instantaneous values of two timevariable mechanical quantities, direct or alternating voltage source 11 is connected to a first modulation member 12 where the voltage is modulated directly by the first mechanical quantity detected by a pickup device 13, and the output 19 is applied to a second modulation member 14 which is in the form of a bridge circuit wherein further modulation is effected directly by the second mechanical quantity detected by a pick-up device 15. A device 16 indicates the product of the two modulations. Modulation member 12, which may also comprise a bridge circuit, has its output 10 connected to an indicating device 17. In a second embodiment, Fig. 3 (not shown), the first modulation device is an induction resolver and the first mechanical quantity is the rotation of a tool spindle which is connected to the motor. The quadrature phase outputs are applied to respective second modulation devices which comprise bridge circuits controlled by pick-up devices responsive to radial displacements of the spindle. The bridge outputs are connected to respective indicators and also to the quadrature deflection plates of a cathode-ray oscilloscope.