baber/WOPTO huggingface dataset:
Patent GB-1500095-A (GB)
Title: Ion source using a hollow cathode discharge arrangement and a particle accelerator comprising such a source
IPC: H01J27/02
Filed: 1976-05-13
Abstract: 1500095 Ion sources THOMSON-CSF 13 May 1976 [16 May 1975] 19845/76 Heading H1D An ion source comprises an anode 3 and a hollow cathode discharge space 10 containing, for example, argon defined by a solid wall 1 and a perforated wall 20 through which ions escape from the discharge, a heated filament 7 emitting electrons to reduce the space charge effect and a grid 8 to control the number of electrons reaching the discharge, the filament 7 and the grid 8 being respectively negatively and positively biased relative to the cathode. An accelerating voltage from a source 42 can be applied between the cathode and a target 40.
Patent GB-655211-A (GB)
Title: Device for removing dust from the surfaces of carpets, clothes, animal skins and the like
IPC: A47L13/40
Filed: 1948-07-26
Abstract: 655,211. Cleaning carpets &c. pads, revivers &c. LARSEN, F. P. July 26, 1948, No. 19966. Convention date, Sept. 12, 1947. [Classes 19 and 138(i)] A device for removing dust from carpets, clothes, animal skins and the like comprises a hollow body, of which at least one wall is of dielectric material and provided with apertures communicating with the interior of the body, a movable cover, and one or more partitions of dielectric material disposed inside the body. The device, Figs.; 1 and 3, comprises a hollow container 1 in which are arranged partitions 4, 5, fastened together, and a cover 2. The bottom of the container which forms the working surface is perforated as at 3. All the members or at least the working surface are made of a dielectric material such as ebonite, celluloid or the like. In operation the device is gripped by the hand. and rubbed over the surface to be cleaned. Electricity produced by the friction, exerts an attraction on the dust particles entering the holes 3 due to the circulation of air set up by the to-and-fro movement of the device, and remain held on the inside walls through this attraction. To increase the cleaning effect the holes are shaped as shown in Fig. 7. They are elongated and inclined to the direction of movement of the device shown by the arrows 18. The edges of the holes 16 project as at 17 from the bottom 15 of the device. The edges of the holes inside the device may be likewise raised. The side walls 19 are curved to facilitate gripping by the hand. In another embodiment for cleaning carpets a hollow body is provided with partitions which may be removable in the manner of a drawer and a handle and the whole of the body or the side walls and working surface may be made of transparent celluloid.
Patent GB-1515438-A (GB)
Title: Porous laminated pellets of waste polyester film and processes for drying and polymerization
IPC: B29B11/00
Filed: 1976-05-14
Abstract: 1515438 Pelletizing waste polyethylene terephthalate film E I DU PONT DE NEMOURS & CO 14 May 1976 [15 May 1975 12 April 1976] 20003/76 Heading B5A [Also in Division C3] To relcaim waste polyethylene terephthalate or similar polyester film, the film is comminuted and granulated to form laminated binderless pellets of interlocked flakes of the film which can be subjected to drying and solid phase polymerization under vacuum or in an inert gas to increase the intrinsic viscosity to a suitable level for re-processing. The film is shredded into flakes which are fed into a roller and ring pelletizer having a knife to cut the compacted flakes into pellets. The flakes are crimped together at the edges and slightly creped. Slight fusion of the edges may also occur due to friction during passage through the die holes.
Patent GB-1433329-A (GB)
Title: Buttons
IPC: A44B1/24
Filed: 1972-04-29
Abstract: 1433329 Buttons INDUSTRIAL FURNITURE ACCESSORIES (ROSSENDALE) Ltd 27 July 1973 [29 April 1972] 20011/72 Heading A3H A button shank 20 is attached to a metal or plastics head 10 and consists of wire side limbs 22 connected by a convolution 24 of approximately 1¢ helix turns (not necessarily circular). The spacing between the turns may be less than the thickness of thread used in attaching the button, so that a loop of the thread 30 can be anchored to the shank.
Patent GB-401241-A (GB)
Title: Improvements in or relating to musical instruments
IPC: G10H3/14
Filed: 1933-07-15
Abstract: 401,241. Acoustic resonators for musical instruments. COMPTON, J. H., Chase Road, Willesden, London. July 15, 1933, No. 20060. [Classes 13 and 88 (ii).] A device for adding resonance and reverberation effects when musical instruments are played comprises a sympathetically vibrated medium whose fundamental frequency is so low as both to be inaudible and to include in its natural harmonics the notes of the complete musical scale. In the construction shown, a single resonant string 1, which may be a coiled wire, influences an electrostatic (or electromagnetic) microphone 3 arranged at one end and connected to an amplifier 4 and loudspeaker. The other end of the string may be connected to a conical diaphragm 6. Specification 202,756, [Class 88 (ii), Music &c.], is referred to.
Patent GB-1111401-A (GB)
Title: Improvements in or relating to information transmission devices
IPC: H04Q9/10
Filed: 1965-05-12
Abstract: 1,111,401. Control of sub-stations. CHARBONNAGES DE FRANCE. 12 May, 1965 [13 May, 1964], No. 20091/65. Heading G4H. Frequency signals characteristic of the address of one of a plurality of working stations are transmitted from a central station which enable a gate at the working station so that information may be transferred to the central station and orders sent to the working station. In the embodiment described for the control of a mine, the working station 36 is called by an oscillator supplying a frequency representative of the figure three to render a thyristor 31 (Fig. 2) conductive and then a frequency representative of the figure six is supplied so that a second thyristor 32 is conductive. The signal which is then passed allows an information unit 5 to send a signal back to the central station composed of three frequencies representative of the states of three components at the working station. At the central station these frequencies are passed into a separator stage and then into twelve filters the outputs from which are used to light an indicator board V (Fig. 4). If, as the states of the working stations are being circulated, an error is indicated in one of them on the indicator board or it is required to move one of the components at a station, the address of that station may be entered manually by the keyboard D, U and the outputs of the filters Flare used to light up a synoptic drawing SY and are also applied to logic means 2 so that through oscillators OS, OR an order may be transmitted.
Patent GB-1173527-A (GB)
Title: Facsimile Transmitter.
Inventor: YOUNG JAMES E
IPC: H04N1/14
Filed: 1967-05-01
Abstract: 1,173,527. Facsimile transmitter. XEROX CORP. 1 May, 1967 [2 May, 1966], No. 20135/67. Heading H4F. A document 61, Fig. 4, which is moved in the direction indicated to introduce a slow component of scan, is scanned in the transverse direction by a rotated endless belt 75 which encircles the document and has a succession of apertures 83 which co-operate with an elongated slit 69 in a stationary member 67. In addition, member 67 has a short series of apertures 89, or a continous series of apertures 89<SP>1</SP>, Fig. 5, which serves in co-operation with slits 83 to generate synchronizing signals. The scanning illumination is provided by an elongated light source 73, Fig. 7, disposed above belt 75, and the signals, both document and synchronizing, are derived by an elongated photo-electric member 87. The frequency of the synchronizing signals is chosen so that they may be separated from the document signal by filter means, Fig. 11 (not shown). If desired, the synchronizing apertures may be formed as an array of sinusoidally varying density patterns. Partitions may be provided to ensure that only light reflected from the document can reach the photo-electric member, Fig. 8A (not shown). A prismatic member may be provided to divert light from the synchronizing apertures to the photo-electric member without reflection from the document, Fig. 8B (not shown). The light source 73 comprises a body of light conducting material formed with a flat face on the side towards belt 75 and having immersed within the material a plurality of incandescent lamps optically matched to the material. The body may be shaped to function as an elliptical reflector and may include or be coated with reflective material, Figs. 9B and 9C (not shown). The photo-electric member comprises a mono-crystalline silicon photo-voltaic member having a shallow PN junction diffused therein. The invention is described as applied to a system in which the signals are communicated to a receiver over a telephone channel making use of acoustic coupling via the speech transmitter. The document signals are quantized into two (or another plurality) of levels and then translated into characterizing audio tones. The synchronizing signal is also sent as a tone. The synchronizing signal is used at the transmitter to operate servo control systems to stabilize the document feed and scanning speeds. Reference is made to the modification of the scanning apertures to permit the generation of carrier-type signals.
Patent GB-1482827-A (GB)
Title: Fluid feed device including variable and fixed capacity pumps
IPC: F04B49/08
Filed: 1975-05-13
Abstract: 1482827 Variable and fixed capacity pumps connected in parallel POCLAIN 13 May 1975 [15 May 1974] 20154/75 Heading F1A In a device for feeding fluid to a load circuit 6 through a delivery pipe 5 and comprising a variablecylinder capacity pump 2, a constant-cylinder capacity pump 1, an engine 16 for driving the pumps, and a fluid-operated actuator 17 including a member 18 loaded by a spring 23 for adjusting the capacity of the pump 2; the initial tension and stiffness of the spring 23 is such that the power absorbed by the pump 2 is a decreasing linear function of the delivery pipe pressure, the power absorbed decreasing for a given increase in pressure by an amount to equal the corresponding increase in the power absorbed by the constant capacity pump 1, so that the maximum power absorbed by the two pumps is constant and equal to the maximum power of the engine. In a second embodiment, Fig. 4 (not shown), a variable-cylinder capacity pump (27) is provided, the delivery of the further pump being selectively connectable by a distributer valve (45) to the load (39) supplied by the other two pumps (25, 26), a further load (48), or a tank (36). In order to utilize the maximum engine power, each variable capacity pump has an adjusting actuator responsive to the delivery pressure of both pumps, the effect of such pressures being in a predetermined ratio. The specification describes how the ratio is determined.
Patent GB-828999-A (GB)
Title: Novel phosphorane compounds and a process for the manufacture thereof
IPC: C07F9/535
Filed: 1958-06-24
Abstract: The invention comprises phosphoranes of formula <FORM:0828999/IV (b)/1> wherein R represents an alkyl group, R1 represents hydrogen or a C1-3 alkyl group and R2, R3 and R4 each represents the phenyl group or a C1-3 alkyl- or C1-3 alkoxy-substituted phenyl group.  R preferably contains up to 18 carbon atoms and R1 is preferably hydrogen.  They are prepared by treating a phosphonium salt of formula <FORM:0828999/IV (b)/2> wherein X is a halogen atom with a substantially equivalent proportion of aqueous alkali.  The phosphoranes are stated to react with aldehydes to produce olefinic compounds, norbixin dimethyl ester being preparable from methoxycarbonylmethylene - triphenyl - phosphorane and 2,6,11,15-tetramethyl-hexadecaheptaen - 2,4,6,8,10,12,14 - diol - (1,16), and crocetin dicetyl ester from (a -cetyloxycarbonyl-ethylidene) - triphenyl - phosphorane and 4,9-dimethyl - dodecapentaen-2,4,6,8,10-diol-(1,12).  The starting material phosphonium salts may be prepared by heating a triaryl-phosphine with a lower a -halogeno-fatty acid alkyl ester in an organic solvent.  Specific compounds thus prepared are ethoxycarbonylmethyl-, (a -methoxycarbonylethyl)-, methoxycarbonylmethyl-, cetyl-oxycarbonyl - methyl-, (a  - ethoxycarbonylethyl)-, and (a -cetyloxycarbonyl - ethyl) - triphenyl - phosphonium bromide.
Patent GB-1180865-A (GB)
Title: Improvements in Directional Microphones for use in Hearing Aids.
IPC: H04R1/38
Filed: 1968-04-29
Abstract: 1,180,865. Microphones. WILLCO-HÍRGER€TE MEDIZINISCHE APPARATEBAU G.m.b.H. 29 April, 1968 [5 June, 1967], No. 20205/68. Heading H4J. A directional microphone for a hearing aid to be worn on the user's head, e.g. of spectacles or behind-the-ear type, has acoustic resistance in the form of a plurality of narrow passages 8 in parallel with one another in a chamber 1 through which pass the sound waves coming from a rear sound entry opening 9 to the rear surface of the diaphragm 4. The front and rear surfaces of the diaphragm 4 face a front sound entry 6 and the rear sound entry 9, respectively. The diaphragm 4 is connected to a transducer 2, e.g. of electromagnetic or piezo-electric type. The resistance may be capillary tubes of glass, metal or synthetic plastics material, stuck or sintered together. Alternatively, the resistance may be formed by a bunch of hairs or by metal or synthetic plastics material corrugated foils rolled or folded or stacked as small plates, preferably in a honeycomb arrangement.
Patent GB-702789-A (GB)
Title: Improvements in or relating to machines for making hollow plastic articles
IPC: B29C41/06
Filed: 1951-08-28
Abstract: 702,789. Mutes. BELL, G. W. DE. Aug. 28, 1951, No. 20250/51. Class 88 (2). [Also in Group V] A mute 65 for a trumpet is moulded from thermosetting contact pressure resin by moving a heated mould 64 in such a manner that a change of liquid resin is swished over the inside of the mould and is cured and set as it comes into contact with the hot surface (see Group V).
Patent GB-852019-A (GB)
Title: Improvements in and relating to polymerization
IPC: C08F20/32
Filed: 1958-06-25
Abstract: Polymers of unsaturated esters of epoxycyclohexylmethanols of formula:  <FORM:0852019/IV(a)/1> where R1 to R6 represent hydrogen or alkyl groups and R represents an alkenyl group having 2 to 4 carbon atoms, may be prepared by reacting the esters with themselves or with one or more unsaturated monomers containing at least one ethylenic double bond and/or acetylenic triple bond.  The polymerization may be effected in bulk, in solution, e.g. in acetone, in aqueous suspension, e.g. in the presence of hydroxyethyl cellulose, or in aqueous emulsion, e.g. in the presence of sodium dioctyl sulphosuccinate, in the presence of catalysts, e.g. acetyl peroxide, lauroyl peroxide and potassium persulphate.  Many suitable monomers are listed and examples describe the homopolymerization of (12) 3, 4-epoxy-6-methylcyclohexylmethyl crotonate and (13) 3, 4-epoxy-6-methylcyclohexylmethyl acrylate and the copolymerization of 3, 4-epoxy-6-methylcyclohexylmethyl crotonate with (1,2 and 8) vinyl chloride, (3) acrylonitrile, (4) vinyl acetate (5) ethyl acrylate, (6) vinylidene chloride, (7) chlorostyrene, (9) vinylchloride and acrylonitrile, (10) vinyl chloride and vinylidene chloride, and (11) vinyl chloride and vinyl acetate, and of 3, 4-epoxy-6-methylcyclohexylmethyl acrylate with (14 and 15) vinyl chloride, (16) methyl methacrylate and (17) chlorostyrene.  The polymers may be cured in the presence of curing agents, e.g. polybasic inorganic and organic acids, polyphenols and polyamines. The polymers may be used in protective coatings, linings, laminates or for impregnating cloth. Films may be cast from solutions, e.g. in benzene, cyclohexanone, dimethyl formamide and methyl isobutyl ketone, containing phosphoric acid, and cured by heating.
Patent GB-992693-A (GB)
Title: Flexible coupling
Inventor: HEIN CHARLES EARL
IPC: F16D3/70
Filed: 1961-06-05
Abstract: 992,693. Resilient coupling.- MORSE CHAIN CO. June 5, 1961, No. 20295/61. Heading F2U. A resilient shaft coupling providing a non- linear deflection characteristic comprises sets of resilient members which are prestressed in opposite peripheral directions. In one embodiment annular rubber blocks 22 are mounted in uniformly spaced apertures in a driven member 12, the central bores 21 in the blocks receiving bushings 20 and studs 17 which are unequally spaced around a driving member 11 so that adjacent blocks 22 are stressed in opposite directions as shown by the stippled areas 33, 34. In another embodiment uniformly spaced pockets 13a provided on a member 12a receive springs 40, 41 engaging unequally spaced arms 17a on a driving member 11a. The arrangement may be modified by having the resilient members mounted in unequally spaced apertures or pockets in the driven member and having the co-operating means on the driving member uniformly spaced.
Patent GB-887200-A (GB)
Title: Lifting jack
IPC: B66F3/08
Filed: 1959-06-15
Abstract: 887,200. Screw jacks. KERNEN, H. June 15, 1959 [June 16, 1958], No. 20335/59. Class 78 (3). A lifting-jack comprises a member 2 which is rotatable by a shaft 12 through bevel gearing 10, 11, and which has opposite hand threaded portions A, B engaging corresponding threaded portions on crutch 8 and column 4, and a housing 13, 14, 15 for shaft 12 and gears 10, 11. The crutch 8 and column 4 are held against relative rotation by arms 19, 20 which are pivoted together on a member 17 slidable along the housing part 13.
Patent GB-1016418-A (GB)
Title: Christmas or decorative balls with decorative insert
IPC: A47G33/08
Filed: 1964-05-15
Abstract: 1,016,418. Ornaments. M. SCHMIDT. May 15, 1964 [May 18, 1963], No. 20435/64. Heading B6G. A Christmas tree ball of thermo-plastic material comprises separate half shells 1, 2 with flanges 3 for joining as by welding. Inserted within the bal during manufacture is a decorative insert comprising strips of metal foil bundled together at the centre of the ball with a wire 9. The ends of the wire 9 rest on the inner surface of the ball to retain the insert in a central position. One or both of the shells are transparent, and may have a metallized surface finish.
Patent GB-202328-A (GB)
Title: Electric watch
IPC: G04C3/06
Filed: 1923-08-13
Abstract: 202,328. Bulle, M. P. Favre-. Aug. 11, 1922, [Convention date]. Electric clocks; balances. - The movement of an electric watch, for use particularly on motor vehicles, is maintained by a balanced coil 7 oscillating over an arc-shaped magnet 6 and geared with a stable balance wheel 17 by pinions 10, 16. The second hand 45 is driven by a ratchet 24 and pawl on a fork-shaped lever 25 which is oscillated by two eccentric rollers 22 on a disc 18 fixed to the spindle 11 which carries the magnet 7. The minute hand is driven by a pawl 36 carried eccentrically on the spindle 23 which actuates a ratchet 38 fixed to the arbor of the minute hand 43. The coil 7 is energized each second by a battery &c. circuit closed by the counter pawl of the seconds ratchet 24 on each movement of the ratchet. The hour hand is driven by suitable gearing. A counter-pawl is provided for the minute ratchet.
Patent GB-294604-A (GB)
Title: Apparatus for the exact trimming of flooring boards
IPC: B27M3/04
Filed: 1928-07-16
Abstract: 294,604. Soc. Anon. des Anciens Etablissements Panhard et Levassor. July 27, 1927, [Convention date]. Planing.-Tongued and grooved boards for flooring are dressed before laying in a machine in which the board A is guided by its tongue and groove between guides B, C over a moulding or other suitable cutter, being held down by a roller P. The guides may be in two parts for purposes of adjustment for wear.
Patent GB-318348-A (GB)
Title: Improvements in or relating to super-chargers for use with internal combustion engines
IPC: F02B33/00
Filed: 1928-07-17
Abstract: 318,348. Parnall, G. G., and Pobjoy, D. R. July 17, 1928. Driving-gear.-A pump for supplying mixture to an engine is driven through epicyclic gear which depends for its positive drive on friction between planet wheels 14 and an annulus 18 surrounding the wheels. A hollow impeller shaft 16 carries a sun wheel 15; the planet wheel spindles 12 are received in slots 7b, 8b formed in a tubular shaft 7 and closing flange 8. The shaft 7 carries one part 6 of a. dog clutch connecting to the engine shaft. Outside the annulus 18 are two brake shoes 19 on levers 20, 21. A spring 28 tends to hold the shoes off the annulus; in this position the fan is driven at engine, speed, its resistance to motion being so slight that the friction between the spur teeth and between the planet wheels and annulus causes the gear to rotate solid. When the brake, shoes grip the annulus the impeller is driven at seven times the engine speed. Impeller, adjusting position of. - The inner end of the impeller shaft 16 abuts against a shoulder 33a on a hollow nut 33 adjustable in the clutch part 6 to position the impeller. A long bolt 30 passes through the shalt 16 and at its inner end through the shoulder 33a; the bolt is used to take up end play of the shaft.
Patent GB-136605-A (GB)
Title: Improvements in or relating to Electrical Fuses.
IPC: H01H85/20
Filed: 1918-12-12
Abstract: 136,605. Cable Accessories Co., Reeves, F. H., and Crawford, A. Dec. 12, 1918. Fusible cut-outs. - A fusebase or shield has its live contacts b located wholly within recesses a which are provided with internal projections accommodated by recessing the contacts to prevent the entry of the finger of an operator. The contacts may be of H-form as shown, and secured by a fastening-screw assembled from the rear or end of the base and permitting the contact to swivel upon the screw.
Patent GB-967403-A (GB)
Title: Improvements in or relating to sound heads
IPC: G11B7/003
Filed: 1962-05-30
Abstract: 967,403. Optical sound heads. EUGEN BAUER G.m.b.H. May 30, 1962 [May 31, 1961], No. 20723/62. Heading G5R. Light, concentrated on a sound track 6 by a lens 9, after modulation is conducted by a light pipe 10 to its end face 12 where an advantageous portion is directed to a photo diode 13, adjustable in elevation by screw means 26 and in azimuth by eccentric means 24 over the end face 12.
Patent GB-238579-A (GB)
Title: Apparatus for heating by oil
IPC: F23D11/10
Filed: 1925-08-18
Abstract: 238,579. De Haen Akt.-Ges., E. Aug. 18, 1924, [Convention datel. Void [Published under Sect. 91 of the Act]. Spray burners.-One or more series of circularly arranged air jets g discharged from nozzle openings so as to cross one another impinge on an oil jet c in such a manner as to rotate and atomize the oil jet. Preferably, the oil nozzle a is arranged outside the furnace and the air jets are arranged to meet the oil jet inside the furnace. Secondary air is supported through perforations in the cover plate k. The oil and air nozzles may be pivotally mounted on the supply pipes so that they may be swung away from the furnace to allow of access to the flame tubes.
Patent GB-460199-A (GB)
Title: Improvements in or relating to thermionic valve circuits, particularly for radio transmission
IPC: H03F3/52
Filed: 1935-07-22
Abstract: 460,199. Valve amplifying circuits. BROWN, A. J., and BAIRD TELEVISION, Ltd. July 22, 1935, No. 20744. [Class 40 (v)] A push-pull pair of short-wave amplifiers feeds a load circuit by a pair of quarter-wavelength conductors connected between the valve cathodes and earth. As shown, a push-pull pair of valves 3, 4 feeds the grids 5, 6 of the output pair of valves 1, 2. The plates of these valves are directly connected together and to the positive terminal of the supply source, the negative terminal being connected to the outer ends of two parallel wires 11, 12 which are a quarter-wavelength long and are connected at their other ends to the cathodes of the valves 1, 2. These wires form the output impedance of the valves 1, 2 and power is taken off therefrom to an aerial or feeder pair 13, 14 by adjustable sliders. The valves 1, 2 are neutralized by capacities 9, 10 connected between each grid and the opposite cathode. A condenser 15 may be provided to facilitate tuning.