baber/WOPTO huggingface dataset:
Patent GB-120366-A (GB)
Title: Improvements relating to Artificial Legs.
Inventor: DESOUTTER CHARLES
IPC: A61F2/60
Filed: 1918-08-13
Abstract: 120,366. Desoutter, C. Aug. 13, 1918. Limbs, artificial.-Comprises means for attaching artificial legs to waistbelts. In one construction, the waistbelt carries a depending arm b to which is pivoted a bifurcated member c strapped through the leg so that the strap is directly above the centre of gravity of the leg. In a modified construction, the appliance is inverted, the member c being attached to the waistbelt and the member b to the leg.
Patent GB-581586-A (GB)
Title: Improvements relating to tubular heat interchange apparatus particularly for heating air
IPC: F28D1/03
Filed: 1944-07-10
Abstract: 581,586. Tubular heat-exchange elements. MORRIS MOTORS, Ltd., and DONO, G. E. July 10, 1944, No. 13157. [Class 64 (iii)] An air, &c., heater comprises annular tubes a, Figs. 1, 3, each formed of sheet-metal plates c secured together at their edges and secured in apertures j' in short flat tubes j projecting from inlet and outlet headers h for the heating fluid, e.g., hot water. The adjacent tubes j are secured together to form transverse partitions across the tubes. The air passes through radial channels formed by corrugated strips g secured between the tubes. In a modification, the annular tubes are formed with transverse ribs k, Fig. 5, and the heating fluid is supplied to, and discharged from, the tubes through slots n in ducts m extending through the tubes. '
Patent GB-1490764-A (GB)
Title: Automated draughting equipment
IPC: G06F3/042
Filed: 1975-04-01
Abstract: 1490764 Determining co-ordinates of position FERRANTI Ltd 15 March 1976 [1 April 1975] 13166/75 Heading G1A In equipment for digitizing the co-ordinates of a feature on a drawing the need for precise alignment of an index mark 11 on cursor 10 with the said feature is avoided by providing an array of photodiodes 16 on the cursor, the outputs of which are sequentially scanned to provide electrical signals indicative of the position of the feature relative to the index mark 11, these signals then being combined with coarse position signals from transducers 20, 21 to provide the accurate co-ordinates. Array 16 may be a monolithic optoelectronic array on a silicon chip and may be located away from the index mark from which it receive light by a mirror (19), Fig. 3 (not shown). It may alternatively comprise photodiodes arrayed to form a ring centred on the index mark Fig. 4 (not shown) or a square "patch". In the latter case logic circuit 18 may determine the co-ordinates of many points of a line constituting the said feature to deduce its characteristics. Transducers 20, 21 may be of the moirÚ fringe type or may be replaced by a grid of wires located beneath the drawing and arranged to detect a magnetic field produced by a coil in the cursor. A second sensing coil may be provided in the cursor to sense its angular orientation. The index mark may comprise a cross-shaped area illuminated by light fibres.
Patent GB-131878-A (GB)
IPC: B01F13/00
Abstract: 131,878. Farrington, C. E. Aug. 28, 1918, [Convention date]. Rotary stirrers.-Consists of a revoluble stirrer which can be introduced through a bung-hole of a barrel or like container where it may be left as a fixture, or withdrawn as desired. An axial bung-hole 13, Fig. 1, is formed in the end 11 of a metal barrel-shaped container. Through the bottom 12 is forced a flanged pivot stud 14, which is headed over a washer. The stud carries the foot or angle-piece of the stirrer blade, which is passed through the opening 13. The blade comprises a horizontal part a, a twisted part e, an approximately vertical part c, a twister part f, an anchored part d, and a vertical shank b, in a plane at right-angles to that of the piece a. The shank b, Fig. 4, extends through the hole 13 into a slot 25 in a plate 23 having a boss 24, screwed at its upper point, plain below, and fitting in a screwed aperture in a plate 20 having an annular flange projecting into the hole 13. The plate 23 has sockets 28 into which fit studs 30 on a crankhandle 29 to screw down the cover-plate 23. When this is unscrewed, the plain part of the boss 24 engages in the plate 20, so that continual rotation of the stirrer does not dislodge the cover. With a wooden container, a cover with a plain boss, slotted to receive the blade b, is screwed to the barrel, the screws being removed to operate the stirrer, while the bottom is pierced by a screw pin to act as pivot. The stirrer can be elongated or contracted to fit containers of different lengths. A weight 40 may be attached to the part e of the blade, and when the blade is rotated, the weight swings and clears any matter adhering to the angle of the barrel.
Patent GB-1111349-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H03F1/48
Filed: 1966-03-25
Abstract: 1,111,349. Transistor amplifying circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 March, 1966 [30 March, 1965; 26 Aug., 1965], No. 13288/66. Heading H3T. An amplifying circuit comprises two transistors of opposite conductivity types, in which the collector of the first is connected with the base of the second, while the emitter circuit of the second transistor 3 includes an impedance 4 which is high with respect to the emitter input impedance. It is characterized in that the emitter circuit of the first transistor 1 comprises a second impedance 6, while its collector circuit comprises the series combination of several diodes 2 polarized in the forward direction and of a third impedance 7, which is higher than the second impedance. By making the number of diodes (n+1), where n is the ratio of the impedances 7, 6, as shown, comprising resistors, compensation is obtained for non-linearity in the base to emitter impedances of the transistors, the purpose being to produce a highly linear amplifier. Transistors 1, 3 may also be provided with decoupled bias resistors 9, 8 respectively, while D.C. negative feedback may be applied between the emitter of transistor 3 and base of transistor 1 to stabilize the arrangement. In a modification (Fig. 4, not shown), the diodes are replaced by the emitter-collector path of an auxiliary transistor (12) having its base connected to a potentiometer, of ratio (n+1) : 1 connected between collector and emitter.
Patent GB-1123528-A (GB)
Title: Method of making sodium carbonate
IPC: C01D7/02
Filed: 1967-03-21
Abstract: Sodium carbonate is prepared by adding sodium sulphate to an aqueous ammoniacal carbonate solution and precipitating sodium bicarbonate which is filtered off and calcined. Either excess sodium sulphate is added to precipitate the ammonium sulphate as a double salt with sodium sulphate or the solution is evaporated to precipitate (NH4)2SO4 in a mixture with Na2SO4 or the double salt.  The precipitate is filtered off and heated with further sodium sulphate to regenerate ammonia and leave sodium bisulphate which is roasted with sodium chloride to give hydrogen chloride and regenerate sodium sulphate.  The process may be carried out in two simultaneous closed cycles, one of liquids and the other of solids.  Figure 1 shows these cycles when the ammonium sulphate is precipitated as the double salt by adding sodium sulphate. Ammonia and carbon dioxide are added in absorber 1 to the solution remaining after precipitating sodium bicarbonate in the bicarbonating tower 3.  This solution then passes to the dissolver-crystallizer 2 where sodium sulphate is added to precipitate the double salt.  The solution, containing excess sodium sulphate then passes to absorber 4 where ammonia and some carbon dioxide are added <PICT:1123528/C1/1> <PICT:1123528/C1/2> and thence to the bicarbonating tower 3 where sodium bicarbonate is precipitated by further addition of carbon dioxide.  The double sulphate precipitate is roasted with further sodium sulphate to give sodium bisulphate which is then mixed with sodium chloride and roasted to regenerate sodium sulphate and produce hydrogen chloride. Alternatively (see Fig.11), the solution from the bicarbonating tower may be passed to a desorber 100 which removes the excess ammonia and carbon dioxide and then to an evaporator 200 which removes water so that on cooling in separator 201 a mixture of ammonium and sodium sulphates separates.  This is treated in the solids cycle in the same manner as the double sulphate mentioned above.  The liquor from separator 201 passes to a dissolver 202 where further sodium sulphate is added and then to an absorber 400 where the gases removed in desorber 100 are redissolved.  The solution then passes to an absorber 401 (analogous to absorber 4 in Fig 1) and thence to the bicarbonating tower 3.  A detailed flow-sheet is given and explained.
Patent GB-401013-A (GB)
Title: Improvements in or relating to electric switches and circuitbreakers
IPC: H01H33/70
Filed: 1932-05-09
Abstract: 401,013. Arc-rupturing in switches. WHITNEY, W. B., WEDMORE, E. B., and BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, 36, Kingsway, London. May 9, 1932, No. 13377. [Class 38 (vi).] In a circuit-breaker of the kind in which a fluid-blast flows through the arcing-space and a tubular venting electrode on breaking the circuit, throttling means are provided at a point close to the commencement of arcing and interposed in the fluid stream passing to the venting electrode at least during the period of arcing, the throttling means having an area which, during that period, is materially smaller than the effective vent area between the electrodes after they have been separated to an appreciable extent. The blast medium may be air and water-vapour, nitrogen and watervapour, nitrogen and petrol-vapour, or carbon dioxide from a cylinder, and, is admitted to the container 10 through an orifice 16 prior to the opening of the switch. The hollow electrode 11 has a flared portion 12, which may be sealed by a valve with an adjustable opening until circuit is broken, and a depending skirt 13 carrying the baffle 17 through an orifice 18 in which the plug electrode 14 passes, in such a way as to leave an annular passage round it. The electrode 14 may be withdrawn to open circuit by means such as the cross-bar described in Specification 278,764, [Class 38 (v), Electric switches &c.], so that fluid passes through 18 and ruptures the arc, which rupture is assisted by the sudden expansion and consequent cooling of the medium above the baffle 17. The design is preferably such that the arc is extinguished at the position of 14 shown, but further separation after extinction may occur. Figures of dimensions are given, as well as of performance, using the different media enumerated above. In Fig. 2 the skirt is lengthened and carries a tube 22 with a corrugated, porcelain insulator arranged so that extinction has been effected at the position of the electrode shown. In Figs. 1 and 2, means such as 24, are provided to collect condensed moisture and return it, as by openings 25, to the container 10. Specifications 330,615, [Class 38 (v), Electric switches &c.], and 398,213 also are referred to.
Patent GB-1099026-A (GB)
Title: Stabilized optical systems
Inventor: ALVAREZ LUIS WALTER
IPC: G02B27/64
Filed: 1965-03-30
Abstract: 1,099,026. Stabilized optical systems. BELL & HOWELL CO. March 30, 1965, No. 13397/65. Heading G2J. An optical system is stabilized by means comprising at least one set of complementary positive and negative lenses, one lens 29, 32 of each set being fixed with respect to the housing containing the optical system while the other lens 31, 33 is fixed with respect to a gyroscope 38 having its rotor axis parallel to a predetermined line of sight, the sets of lenses thus compensating for small angular deviations of the housing from said line of sight. In the embodiment of Fig. 3 planoconcave lenses 29, 32 are fixed in a camera housing 34 on the optical axis 36. Mating planoconvex lenses 31, 33 are mounted within the housing 34 by means of the gyroscope 38, the gimbals of which are pivoted about axes which intersect at the common centre of curvature of the mating surfaces of the two pairs of lenses. A prism 49 deflects the light entering the camera to a film gate 46. The refractive index of the lens pairs is such that the total deflection produced by the prisms formed, on deviation of the camera through an angle Ï, is also equal to Ï. In order to make the stabilizing means achromatic the lens pair nearest the gyroscope produces a prism having dispersion properties equal and opposite to the total dispersion properties of all preceding lens pairs. A precessor 52 is arranged to move the gyroscope through vertical or horizontal angles to permit intentional panning of the camera beyond the narrow range of angular motion for which compensation is provided. When this compensating device is incorporated into a telescope the total deflection produced by the lens pairs, upon deviation of the telescope housing through an angle Ï, is arranged to be ó (1 Œ1/M,) where M is the magnification power of the instrument. This further correction is necessary to overcome rotation of the line of sight.
Patent GB-134096-A (GB)
IPC: D21G9/00
Abstract: 134,096. Palmer, F. H. Dec. 6, 1918. Paper-machines; driving-mechanism.-In the manufacture of boards, sheets, panels, &c. from paper-making materials, the whole of the mechanism is operated successively and at the requisite intervals by cams A fixed on one or more shafts B. The cams may be adjustable, as shown in Fig. 3.
Patent GB-493904-A (GB)
Title: Improvements in and relating to rubber-soled footwear
IPC: A43B13/28
Filed: 1938-05-05
Abstract: 493,904. Rubber - soled footwear. POLLAK, J. E. (Continental Gummi-Werke Akt.-Ges.) May 5, 1938, No. 13455. [Class 17 (ii)] A sole of porous rubber is provided during its manufacture at its outer edge with a projecting fabric strip. This strip b, Figs. 3, 4, may, as shown, be integral with a strip of fabric extending over the tread side of the porous rubber sole a, and which may be protected by a layer c of homogeneous rubber to impart the appearance of deerskin. The upper d, which may be of leather, fabric or other material, is sewn to the projecting portion of the strip b by a seam e made in a shoe-stitching machine. An intermediate sole f and insole g may be placed in the shoe and these also may be secured by the seam e. Specification 473,413 is referred to.
Patent GB-186307-A (GB)
Title: Machine for boring holes in stones or rocks
IPC: E21B6/00
Filed: 1922-05-12
Abstract: 186,307. Siemens - Schuckertwerke Ges. Sept. 20, 1921, [Convention date]. Addition to 163,048, [Class 103 (i), Brakes &c.]. Percussive drills.-In a rock drill, the rotating spindle which carries the tool is screwed for engagement with a worm wheel which is alternately held against rotation and released to effect reciprocation of the spindle. The worm spindle 3 which carries the boring tool 23 is coupled to the motor 1 by the member 10 so that it can be slid against the action of a spring 18. A band brake 22 is applied by a spring 28 and can be released by a lever 24 which engages an adjustable nut 31 on a rod connected to the brake lever 29. Assuming the motor to be running and the parts to be in the position shown, the brake 22 is applied and holds the wheel 19 stationary so that the spindle is moved axially and compresses the spring 18 until the member 10 by striking the end of the lever 24 releases the brake and permits the spring to impel the tool 23 against the working face. The brake is held released by a latch 25, 26 which is however disengaged to effect the re-application of the brake at the completion of the stroke of the spindle by the engagement of the member 10 with the latch part 27. The degree of compression of the spring 18 may be regulated by adjusting the nut 31.
Patent GB-514515-A (GB)
Title: Separation of solid materials
IPC: B03B5/44
Filed: 1938-05-05
Abstract: 514,515. Wet-separating. DIRECTIE VAN DE STAATOMIJNEN IN LIMBURG. May 5, 1938, No. 13472. Convention date, May 29, 1937. [Class 82 (ii)] In a method of separating solid materials of different specific gravities in a liquid of intermediate specific gravity, the separating liquid is an aqueous suspension of loess, loessoid, or an earth of loess character. The viscosity of the suspension may be changed.by addition of an alkaline substance, e.g., soda, caustic soda, potash, caustic potash or ammonia, of a protective colloid, e.g., starch, gelatine or glue, or of a hydroxylated fatty acid or its salt, e.g., lactic acid, citric acid, or tartaric acid, or their sodium or potassium salts. Specifications 15,945/13, [Class 82 (ii)], and 420,367, and U.S.A. Specification 1,224,138 are referred to.
Patent GB-1500338-A (GB)
Title: Chloroprene polymers and the use of xanthogen disulphides in their manufacture
IPC: C08F36/00
Filed: 1975-04-02
Abstract: 1500338 Xanthogen disulphides E I DU PONT DE NEMOURS & CO 2 April 1975 [2 April 1974] 13473/75 Heading C2C [Also in Division C3] Various xanthogen disulphides of formula where A is alkylene or cycloalkylene containing at least 2 and 3 carbons respectively and n is 1-4, the two valencies of A being attached to different carbon atoms only one of which can be tertiary, are prepared by reacting a diol HO(AO) n OH water CS 2  followed by oxidation, e.g. with ammonium persulphate. The products are used to form xanthate-terminated chloroprene polymers.
Patent GB-134742-A (GB)
IPC: A43B7/32
Abstract: 134,742. Gammon, H. E. March 18, 1919. Boots for furnace-men &c.-To protect a boot from being burnt by molten metal, furnace ashes, acids, &c., it is provided with a detachable vamp covering E spaced from the ordinary vamp by means of a blade spring F, and held in position by the engagement of keyhole slots D with studs A projecting from the mid-sole. The boot is clumped in the usual way, and is then fitted with a tread C of asbestos, which is secured in place by hob nails B.
Patent GB-1032803-A (GB)
Title: Flame ionisation detector
Inventor: HOUGH-GRASSBY ALEC WILLIAM
IPC: G01N27/62
Filed: 1963-04-04
Abstract: 1,032,803. Flame ionization detectors. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 2, 1964 [April 4, 1963], No. 13517/63. Heading F4T. A flame ionization detector comprises a flame proof enclosure formed by a stainless steel cylinder 10 (Figure not shown) closed at its upper end by a threaded steel cap 14 and at its lower end by a threaded plug 12. An electrode 26 extends through a ceramic bush 20 secured to the cap. The plug 12 has two capillary passages 38 supplying hydrogen and nitrogen or argon to a burner nozzle 42 and a capillary passage 30 leading air to a sintered steel disc 34 and thence to the interior of the enclosure. Combustion products pass through fine holes 44 disposed around the cap 14. An igniter 50 comprising a coil of molybdenum-platinum gold alloy wire is mounted in a threaded port 48 in the cylinder 10.
Patent GB-1328166-A (GB)
Title: Continuous and semicontinuous casting of molten metal
IPC: B22D11/01
Filed: 1971-05-06
Abstract: 1328166 Continuous casting ORDENA TRUDOVOGO KRASHOGO ZHAMENI KUIBYSHEVSKY METALLURGICHESKY ZAVOD IMENI VI LENINA 6 May 1971 [16 Sept 1970] 13542/71 Heading B3F Molten metal, e.g. Al or Al alloy, is shaped by an electromagnetic field of an inductor 1 and cooled by a fixed stream of fluid (water) directed to flow, where it first forms, at right angles to the axis of the ingot before it impinges on the ingot, which is continuously withdrawn while molten metal is being fed into the shaping region. The metal flows from a trough 8 and an apertured floating bowl 10 and as it solidifies a starter dummy 5 is lowered. The cooling water flows from at least one annular slit 6 as shown or an equivalent row of holes (possibly staggered) or shorter slits in the wall of a header 3 mounted, with the inductor 1 and an electromagnetic shield 2 on a plate 12 to surround the casting region. There is a lower slit 7 or equivalent row of holes or shorter slits for directing water on to the surface of the casting at an acute angle. For producing a rectangular-sectioned casting, e.g. 6 m. long and 300 x 1260 (or 1560 mm.), the inductor 1 is shaped to produce a convexsided liquid zone of the metal to allow for the uneven contraction during solidification.
Patent GB-1467238-A (GB)
Title: Oil storage tank
IPC: B63B22/02
Filed: 1973-03-21
Abstract: 1467238 Floating storage tank BRITISH PETROLEUM CO Ltd 13 March 1974 [21 March 1973] 13544/73 Heading B7S A marine structure comprises an oil storage tank 1 having conduits 13 extending lengthwise through it to accommodate oil risers 21. Oil admitted to the tank through oil gas separator 24 and line 25 and water is discharged from it through valves 7, lines 22 and oily water separator 23. Oil is discharged from the tank by pump 27 and line 35 and water is admitted through valves 7. The tank has an inner wall 2 and outer wall 3 defining a buoyancy chamber 5 to which water is admitted, or discharged from, by valves 6. Air is pumped into the buoyancy chamber by pump 37 via line 38 and is released from it by valves 40. The dimensions of the buoyancy chamber are such that when the tank is wholly submerged its buoyancy is controlled at about neutral by adjusting the relative amounts of air and water in the buoyancy chamber. Tubular projections 4 extend above the tank to receive mooring cable 30 from a tanker.
Patent GB-135576-A (GB)
IPC: B21B39/28
Abstract: 135,576. Watson, J., and Shawcross, R. H. Nov. 25, 1918. Rolling; twisting.-Bars are rolled and twisted in one operation by passing the work through a halved die situated at the point of delivery of the rolls. The halves may be secured in a mounting by transverse keys. The guide 3 closely fits the rolls at 5. Twist is imparted at 6. According to the Provisional Specification the die may alternately be integral or in four parts. Specifications 10228/93 and 23301/95, [Class 83 (iii), Metals, Cutting], are referred to.
Patent GB-135663-A (GB)
IPC: E06B3/70
Abstract: 135,663. Armstrong, E. W. Dec. 16, 1918. Turn-bolt door fastenings.-A closely-fitting door is fastened by means of a turn-bolt s mounted on a shaft a screwing in a nut d fixed to the door, and having handles g, i. The bolt s is normally loose on the shaft, but can be secured thereto, for operation by the outside handle g, by means of a rod w mounted under spring control within the shaft and having a projection which, when the rod is pushed inwards by its knob 10, locks the bolt and shaft together. After the bolt has been engaged with its keeper t, it is disconnected from the shaft, and this is further rotated to draw the door against its seating. From inside, the bolt s is operated directly by hand. The inside handle i is connected to the shaft by a pawl and pinion device to enable the shaft to be turned by a to-and-fro movement should the space be limited.
Patent GB-495265-A (GB)
Title: Improvements in and relating to recording mechanism of the electro chemical type
IPC: G01S1/72
Filed: 1937-05-14
Abstract: 495,265. Recording apparatus. HUGHES & SON, Ltd., H., SPROULE, D. O., and HUGHES, A. J. May 14, 1937, No. 13657. [Class 106 (iv)] In electrochemical recording-apparatus of the type in which the marking member e con. tinuously rotates about an axis a, the said member is caused to follow a non-circular path as it passes over the record sheet c. The marking member e is carried on a sleeve f slidable on a rotary arm b and having a roller g engaging a fixed cam track h shaped to cause the marking member to move in a straight line over the record sheet. An inner cam portion only may be provided, the roller g being maintained in contact therewith by means of a spring connecting the sleeve f and arm b. Alternatively, a fixed outer cam portion may be arranged to extend around a part only of the path of the roller g.