baber/WOPTO huggingface dataset:
Patent GB-1526593-A (GB)
Title: Process for recovering usable materials from waste containing metals and non-metals
IPC: B03B9/00
Filed: 1977-05-13
Abstract: 1526593 Recovering metals from waste STAMICARBON BV 13 May 1977 [14 May 1976] 20246/77 Headings B2H and B2P In a process of the type described in Specification 1526591, the solid particulate waste material contains, in addition to other components, both aluminium and glass, and after the separation in the second hydrocyclone, virtually all the aluminium and glass are contained in the fourth fraction, and, after the separation in the third hydrocyclone, using a liquid separating medium having a specific gravity ranging between 2.30 and 2.50, virtually all the aluminium is contained in the fifth fraction and virtually all the glass is contained in the sixth fraction. A flow diagram of the process is described in detail.
Patent GB-305904-A (GB)
Title: A silencing chamber for the exhaust of internal combustion engines
IPC: F01N1/18
Filed: 1928-07-12
Abstract: 305,904. Standen, W. H. July 12, 1928. Exhaust silencers.-A cylindrical casing a contains a number of fans f, adapted to be rotated by the flow of the gases, and mounted on a shaft d fixed in transverse members e arranged at right angles to one another. The gases enter at b and leave by an outlet c which may be of fishtail form. A plate h in the inlet b serves to deflect the gases on to one half of the area of the first fan. The fans are spaced by tubular distance pieces g, and the shaft d is hollow and provided with holes j to convey lubricant from a lubricator k through a duct l.
Patent GB-627379-A (GB)
Title: Improvements in machines for distributing artificial fertilisers
IPC: A01C7/16
Filed: 1947-07-28
Abstract: Relates to fertilizer distributers of the type wherein dish-shaped conveying members rotate beneath an elongated hopper, from which they are fed with material through apertures in the base thereof and the material is ejected from the conveying members by paddle-like distributing members mounted on a transverse shaft and driven through gearing from the ground wheels of the machine.  According to the invention, the paddle dimensions and the gear ratio are so chosen that the rotating paddles create a draught which assists the purely mechanical action of the paddles in spreading the fertilizer.  The gearing may be such as to produce a spreading shaft speed of 1,000-1,200 r.p.m., and the paddle widths may be 3.0 to 3.5 cm.  In addition, a blower may be provided with a plurality of nozzles arranged adjacent to the conveying members.
Patent GB-357660-A (GB)
Title: Improvements in optical systems for cameras for photography or kinematography particularly in colour
IPC: G02B27/14
Filed: 1930-07-04
Abstract: 357,660. Optical systems. HILLMAN, A. G., GILL, B. T., and GERRARD WIRE TYING MACHINES CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. July 4, 1930, No. 20330. [Class 97 (i).] Three-colour and like systems reflector systems.- A light-dividing system to be placed behind the lens of a camera for obtaining multiple images in colour photography comprises a pair of reflecting surfaces disposed in intersecting planes and adapted to divide the beam transmitted by the objective into four sections, two of which, passing unobstructed by the system, are on the optical axis and may combine to form one direct image or be separated to form a direct and a reflected image. The system consists of a disc-shaped reflector 1 mounted within a ring-shaped reflector 2. Light reflected from the mirrors 1, 2 form images in the planes 4, 6 respectively after passing through a red filter 3 and a blue filter 5. Light passes unobstructed by the system through the zone 7, Fig. 5, between the reflectors and also through the marginal zone 8, and, in the arrangement shown, the two unobstructed portions combine to form an image in the plane 10 after passing through a green filter 11. If it is desired to produce a fourth colourcomponent image, the rays passing through the zone 7 are diverted by an additional ring-shaped reflector placed behind the system. The reflectors 1, 2 are slightly elliptical in outline and the width of the reflector 2 progressively increases from a minimum at K<1> to a maximum at L<1>. The disc reflector 1 is offset from the true optical axis in the direction of the focal plane 4, the ring 2 being also offset in the same direction, and the disc 1 being further offset towards the rear of the ring. The disc 1 may be provided with a central aperture 14, the light passing through this aperture being deflected by a small mirror and utilized for focusing purposes.
Patent GB-459877-A (GB)
Title: Improvements in or relating to shoe bottom pressing apparatus
IPC: A43D25/06
Filed: 1935-07-17
Abstract: 459,877. Boot - making machines. MELLERIO, L. P., 160, Belgrave Road, Leicester.-(Barge Electric Shoe Cement Press, Inc. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) July 17, 1935, No. 20337. [Class 17 (i)] Sole-laying.-A shoe bottom pressing apparatus adapted for use on ladies' shoes wherein a sole and heel breast flap are secured by adhesive, has work pressing means movable directly by an operator, for forcing a shoe against a pad, resilient means for retaining the work under pressure and means for heating fluid contained in a sole engaging pad arranged externally of the fluid-containing member. A base 1 is filled with liquid by an orifice closed by a plug 11, the liquid being retained by a rubber diaphragm 3 provided with a leather covering. The end of the base is open so that the diaphragm may engage the heel breast. The work is held under pressure by a bail 33 secured to the base by springs 35 and engaging one of a number of notches 31 in a lever 21 provided with a latch 27 co-operating with one of a number of notches 29 in a lever 13 carrying adjustable heel and toe abutments for the last. These abutments are held against swing by sleeves 47 screwed into bifurcated portions of the abutments and surrounding push pins which selectively engage holes 39. The liquid is heated by an electric resistance 57, the current being controlled by a thermostat 61. The plug 11 is of lowfusible metal, which melts if the liquid becomes too hot. The chamber containing the heating devices may project into the liquid. The apparatus stands on feet 65.
Patent GB-1471219-A (GB)
Title: Display arrangement
IPC: G04G9/00
Filed: 1974-05-08
Abstract: 1471219 Controlling light, electronic timepieces CITIZEN WATCH CO Ltd 8 May 1974 [15 May 1973] 20367/74 Headings G2F and G3T In an arrangement comprising a liquid crystal display element exhibiting an optical change in response to application of an A.C. potential  difference thereacross and having its own electrical capacitance, a source of D.C. potential difference, and switches arranged to connect the D.C. potential difference across the display element successively in opposite directions to provide an A.C. potential difference to drive the element, means independent of the D.C. source are arranged to discharge the element via a short circuit prior to at least some applications of the D.C. potential difference. Without the short circuit, the element would discharge through the D.C. source in its discharge  direction. If the D.C. source is a battery its lifetime would be corresponding reduced. In the arrangement of Fig. 5, # 1  and # 2 , are unipolar pulse trains of the same amplitude and frequency, differing in phase. S is a signal determining whether the display element 11 is energized. When S is zero, inverted # 1  is applied to one side of element 11 via device 51, and is also applied to the other side via AND gate 52 and NOR gate 55. When S is 1, # 2  is passed by AND gate 53 and inverted at gate 55 so that the potential difference across element 11 is (# 1  - # 2 ). When # 1  = # 2 , there is a short circuit via the high or low power supply line depending on the value of # 1 . In a modification ° 1  and ° 2  may have different frequencies provided the integral of the resulting waveform is zero taken over a period less than that at which the display device is degraded by a D.C. potential difference. # 2  may be devided from # 1  via a D-type flip-flop, an exclusive OR gate or a latch, Fig.s 6a-6c (not shown), or various types of delay line. In practical embodiments, the circuit of Fig. 5 is constructed using complementary MOSFET devices, Figs. 9a-9f (not shown) whereby the short circuit via the negative and/or positive supply line is substantially complete and little discharge current flows through the battery. Use of bi-polar transistors requires more energy in the shorting condition, and if they are non-complementary, the potentials at each side of the display element may not be identical. The display element may be of the dynamic scattering or TWIST type, and may form part of a watch or clock display, # 1  and S being derived from the clock circuitry, and # 2  from # 1  via a logic element also receiving pulses from such circuitry.
Patent GB-301525-A (GB)
Title: Improvements in and relating to inertia governors
IPC: G05D13/00
Filed: 1927-08-03
Abstract: 301,525. Smith, D. M., and Metropolitan-Vickers Electrical Co., Ltd. Aug. 3, 1927. Inertia governors.-In an inertia governor the operation of which is dependent upon a rate of change of speed of the kind wherein a flywheel or the like is operated by a driven part and actuates a valve to effect the control, the flywheel 413 is arranged with its axis vertical and its weight maintains contact between a driving cam disc 417 mounted on the flywheel and rollers 411 mounted on radial pin 412 carried by a disc 410 keyed to the tooth-driven shaft 400. The wheel 413 is centred upon the shaft by a spherical ball bearing 414. Small clearance is provided to permit slight tilt to ensure balance. The geverning is effected by a valve 420 which surrounds the shaft with slight clearance, and has projections 421 in engagement with recesses in the flywheel whereby it is rotated. The valve is moved longitudinally by a flange 423 thereon which engages washers 424 carried by the flywheel. The washers are ridged at right angles on opposite sides respectively to prevent the tilt of the flywheel affecting the valve. Ports 237, 229, 247 are provided in the casing, and a sleeve valve 429, arranged between the valve 420 and the ports, is controlled by a lever 250 connected to the relay controlled by the governor. A channel 419 in the disc 410 is supplied with oil which by its action on a ring 418 formed on the cam disc damps the action of the governor. Oil from port 229 which effects the lubrication passing through a hole 431 down the shaft into a chamber 432 in the disc 410 and passes through radial adjustable bores to the channel 419. Specifications 298,691 and 301,338 are referred to.
Patent GB-803257-A (GB)
Title: Therapeutically active mixtures of d, l-homocysteine thiolactone, l-cysteine and fructose
Filed: 1957-06-28
Abstract: A therapeutic composition comprises a mixture of D,L-homocysteine thiolactone, L-cysteiene and fructose.  The composition may be a solid mixture containing a buffer to give a pH 3.0-4.0 when the mixture is dissolved in water or a sterilized aqueous solution buffered to a pH 3.0-4.0, both preferably containing 15.25 parts by weight of active constituents and 85-75 parts diluent.  The preferred proportions by weight of active constituents are 0.5 parts D,L-homocysteine thiolactone, 1-2 parts L-cysteine, 15-25 parts fructose.  The process for the production of the sterilized solution comprises preparing a solution of the active components and adjusting the pH to 3.0-4.0 by adding a buffer at a temperature of not more than 20 DEG  C. and then sterilizing by heating to a temperature of about 110 DEG  C.  A solid product may be prepared from a sterilized or unsterilized aqueous solution by gentle evaporation or freeze-drying in the absence of air.
Patent GB-904547-A (GB)
Title: Improvements in and relating to fencing
Inventor: WOOD THOMAS
IPC: E04H17/14
Filed: 1958-06-26
Abstract: 904,547. Continuous fencing. WOOD BROS. (WARSOP) Ltd. Sept. 28, 1959 [June 26, 1958], No. 20585/58. Class 45. A continuous fence is constructed of prefabricated panels each comprising a top and bottom horizontal rail 12 and 13 and vertical strips 11, arranged so that the edge 14 of one strip overlays the edge 15 of the adjacent strip. One or more intermediate rails 17 may be provided. The panels are secured to fence posts 18 by a pair of guides 20 and are held off the ground by a stop between the guides. The capping 22 may be used to prevent withdrawal of the panel or a further stop may be fitted at the top of the guides. The strips 11 may reach to the upper surface of the top rail 12 and be covered by a capping 25, Fig. 4, or may stop short and be covered by a capping 16, Fig. 3.
Patent GB-856963-A (GB)
Title: Cutter for quartering oranges, grape fruit, apples and the like
IPC: B26D3/26
Filed: 1959-06-16
Abstract: 856,963. Oranges &c. quartering. SLEEMAN, W. G. R. Oct. 6, 1959 [June 16, 1959], No. 20592/59. Class 5(1). Oranges &c. are quartered by pressing them down on a pair of crossed blades 2 mounted in a circular band 1. The cutting edges may be slightly convex and the device may rest on rubber buffers. The band may have finger pieces 7.
Patent GB-922258-A (GB)
Title: Phosphoric acid esters of substituted fluoroalkanols and process for their manufacture
IPC: A61K8/69
Filed: 1961-06-08
Abstract: The invention comprises compounds of the formula <FORM:0922258/IV(a)/1> where R1 is hydrogen or alkyl of 1-5 carbon atoms, R2 is a free or esterified carboxyl group, a carboxamido group or an ether group, and n is 0 or 1; their salts, and their preparation by reacting a compound <FORM:0922258/IV(a)/2> where R2 is a free or functionally modified carboxyl group or an ether group, with a reactive derivative of phosphoric acid, and if desired, if necessary after conversion of the product into the free phosphoric acid ester, converting into a salt.  Suitable reactants are phosphoric acid anhydrides, such as polyphosphoric or pyrophosphoric acids, halides, such as POCl3, and esters, such as diaryl halophosphates.  If R1 in the reactant is -CN it is converted by the reaction to -COOH or -CONH2. Examples prepare the calcium salts of (1) a -phosphoroxy-b -fluorolactic acid methyl ester, (2) 3-phosphoroxy-4-fluorobutyramide, (3) 3-phosphoroxy-4-fluorobutyric acid, (4) 2-carboxamido-2-phosphoroxy-3-fluoropropane and (5) 1-guaiacyloxy- 2-phosphoroxy- 3-fluoropropane.  The compounds of the invention are useful as pharmaceutical chemicals, especially for caries-inhibiting purposes (see Group VI). 3-Hydroxy-4-fluorobutyronitrile is prepared by reacting 1-chloro-2-hydroxy-3-fluoropropane with KCN in aqueous ethanol. Fluoroacetone cyanohydrin is obtained by addition of HCN to fluoroacetone.  1-Guaiacyloxy- 2-hydroxy- 3-fluoropropane is obtained by reacting guaiacol sodium salt with 1-chloro-2-hydroxy-3-fluoropropane, or by reacting guaiacol with epifluorohydrin.  b -Fluorolactic acid methyl ester is obtained by esterifying the acid with diazomethane.ALSO:Pharmaceutical preparations, especially for the care of the teeth, comprise a compound <FORM:0922258/VI/1> where R1 is hydrogen or alkyl of 1-5 carbon atoms, R2 is a free or esterified carboxyl group, a carboxamido group or an ether group and n is 0 or 1 or a salt thereof (see Group IV (b)) in admixture or conjunction with a pharmaceutically suitable carrier, e.g. a toothpaste mixture. Suitable carriers are gelatin, cholesterol, lactose, starch, magnesium stearate, talc, vegetable oils, benzyl alcohol, gums, polyalkylene glycols, and petroleum jelly.  The compositions may be made up as tablets, dragees, powders, ointments, creams, solutions, suspensions or emulsions.  Preserving, stabilising, wetting or emulsifying agents may also be present.
Patent GB-601251-A (GB)
Title: Improvements relating to electromagnetic wave energy transfer devices
IPC: H01Q19/13
Filed: 1944-10-25
Abstract: 601,251. Wave-guides; directive radio systems. SPERRY GYROSCOPE CO., Inc. Oct. 25, 1944, No. 20803. Convention date, Oct. 26, 1943. [Classes 40 (v) and 40 (vii)] A radiating or receiving element for a radio beam comprises a hollow resonance space which is bounded by a reflecting rear wall and by plane side walls, extensions of the latter being provided at the mouth of the hollow to face the beam with convex surfaces. Figs. 1 and 2 show an embodiment in which a narrow cylindrical parabolic reflector 11 is fed with highfrequency energy by means of two wave-guides 18, 19 having discharge mouths facing parabolic surface 14 and arranged substantially at the focus. Lateral control of the angle of the emitted beam is obtained by the use of flaps 12, 13 which are physically and electrically continuous with the side plates 15, 16 of the parabolic reflector 11, and are designed to reduce side lobes in the radiation pattern. The effective angle of the beam is determined by the effective aperture a at the point where the flaps lose control of the beam. Up to this point, the curvature of the flaps is continuously increasing at a rate depending on the desired beam angle. After this point, the curvature increases rapidly so that the flaps merge into space without any sharp discontinuities with respect to the emitted beam, thus avoiding reflections and the production of side lobes. The flaps are made of sheet metal bolted on to reinforcing girders 23 and provided with stiffening plates 27. The flaps may be adjustably hinged to the sides of the reflector provided there is electrical continuity, or they may be integral with the reflector (Fig. 5, not shown). Fig. 6 shows an arrangement in which the beam angle is determined by the angle between the initial flat portion of the flaps and the sides of the reflector 11. Side lobes produced by the discontinuities at 39, 40 are reduced by curving the flaps as in Figs. 1 and 2. The angle between the flaps and the reflector may be as much as a right-angle (Fig. 7, not shown). Fig. 8 shows two angularly connected wave-guides 47 fed at 48 and having a longitudinal emitting slot 49 furnished with launching plates 51, 52 formed similarly to the curved flaps shown in the previous Figures.
Patent GB-460212-A (GB)
Title: Improvements in or relating to amplifying devices comprising a photoelectric cell
IPC: H01J40/14
Filed: 1935-07-22
Abstract: 460,212. Modulating systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. July 22, 1935, No. 20824. Convention date, July 23, 1934. [Class 40 (v)] A carrier wave is modulated according to the illumination of a photo-electric cell P by connecting the cell in series with a circuit L C tuned to the carrier frequency and supplying to the cell circuit two higher frequencies F1, F2 which differ by the carrier frequency. The cell may be polarized by a condenser - shunted battery U, and when illuminated functions as a rectifier or detector. The carrier-frequency voltages are taken to amplifiers from the terminals of the resonant circuit L C. In a modification, the two sources F1, F2 are replaced by a single source modulated by the carrier frequency. The system is particularly applicable to cells having low gas pressure and small dimensions where the anode is near the cathode.
Patent GB-391423-A (GB)
Title: Electric type printer
IPC: F23D11/10
Filed: 1931-07-21
Abstract: 391,423. Printing-telegraphs. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. July 21, 1931, No. 20829. Convention date, July 22, 1930. Void [Published under Sect. 91 of the Acts]. [Class 100 (iv).] In a printing-telegraph, means such as ribbon-adjusting or case-shift mechanism is provided for differentiating received and transmitted messages. In the arrangement shown in the Figure, the ink ribbon 2 is bicoloured and the type-levers 5 are actuated by the key 7, or electromagnetically by the received impulses. At a certain point in the path of the typelever a nose 10 formed on it strikes a projection 6 and, through a series of levers 3, 31, 311, 3<111>, raises the ribbon 2 to its working position against the platen 1 and paper tape 12. When a key 7 is depressed, however, the levers 8, 13 press the projection 6 further forward into the position indicated by broken lines so that the nose 10 meets it earlier in its path and raises the ribbon higher, thus effecting printing in a different colour. To prevent the ribbon from dropping too quickly for high-speed typing an air-brake comprising a pierced cylinder 15 and a piston 16 is provided.
Patent GB-243799-A (GB)
Title: Automatic cut-out means for electric irons and the like
IPC: D06F75/26
Filed: 1924-09-04
Abstract: 243,799. Irvine, H. B., and Wooff, H. Sept. 4, 1924. Electric hand - irons are provided with a thermal switch 27 which, when the iron reaches a predetermined temperature closes contacts 25, 26 in a shunt circuit to the electromagnet of an automatic circuit-breaker which then operates to open the heating circuit of the iron as well as the circuit to the electromagnet.
Patent GB-892369-A (GB)
Title: Bag feeding mechanism
IPC: B65B43/18
Filed: 1960-06-14
Abstract: 892,369. Feeding sheets &c. LITCHARD, A. June 14, 1960, No. 20893/60. Class 100(1) [Also in Group XVII] A device for raising film bags from a stack in a packaging machine (see Group XVII) comprises a pivoted suction tube which swings into contact with the uppermost bag and then raises it to a position for gripping by opening jaws. In one embodiment the tube 90, pivoted at 89, has a bellows connection 94 with a fixed suction creating fan 92. When the tube swings down under gravity and engages a bag 25, pressure drops in the bellows which contracts, rasiing the tube. When the jaws (not shown) remove the bag, suction is broken and the bellows expand enabling the tube to descend again to engage the next bag. The bags are fed upwards against stops 16 by springs (Fig. 1, not shown). In another embodiment (Fig. 1, not shown) the fan and its motor are rigid with the tube and form a counterbalance weight to raise the bags. Movement of a frame carrying the jaws presses the tube into contact with the stack.
Patent GB-807858-A (GB)
Title: Improvements in or relating to the manufacture of toffee
IPC: A23G7/02
Filed: 1955-07-19
Abstract: 807,858. Double belt machines for moulding toffee. CAMERON, A., and HORNER & CO. Ltd., G. W. Oct. 4, 1956 [July, 19 1955], No. 20914/55. Class 87(2). Toffee which is still just liquid is passed from a cooker onto an inclined shoot a which delivers it between two flexible steel or phosphor bronze belts c moving in the same direction. The gap between the belt may descrease towards the exit end. The belts are cooled by supplying water to inlet rollers f, hand cooling chambers l, m. Toffee is prevented from escaping between the edges of the belt by metal plates (see Fig. 2, not shown) or by secondary belts. The toffee may be pre-cooled before being fed to the belt.
Patent GB-1391524-A (GB)
Title: Process for the production of an alpha-alumina having a specific surface area of at least 4o m 2/g
IPC: C01F7/021
Filed: 1972-05-05
Abstract: 1391524 Alpha alumina SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 5 May 1972 [7 May 1971] 21032/72 Heading C1A Alpha alumina of specific surface area of at least 40 m.<SP>2</SP>/g. is made by impregnating anhydrous or hydrated alumina with a carbonizable material, heating the impregnated alumina at 400-700 C. to carbonize the carbonizable material, heating the carbonized alumina to at least 1300 C. in an inert atmosphere and removing the carbon from the product by converting to a gaseous product, e.g. by heating, below 800 C. in air. The carbonizable material is preferably a water-soluble carbohydrate, a natural or synthetic organic polymer used in an amount such that the alumina contains 5-25% by wt. of carbon. The initial two steps of impregnation by means of an aqueous dispersion or solution and carbonization may be repeated two or more times, and most of the solvent removed by drying prior to carbonization.