baber/WOPTO huggingface dataset:
Patent GB-990170-A (GB)
Title: Improvements in or relating to Balance-to-Unbalance (and vice versa) Impedance Transforming Couplers
IPC: H03H7/42
Filed: 1961-08-14
Abstract: 990,170. Impedance transforming couplings. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. Aug. 14, 1961[Aug. 16, 1960], No. 29259/61. Heading H1W. An impedance transformer comprises a number (three shown) of bifilar windings 6, 7, 8 . . . connected in series on the high impedance side to balanced terminals 1, 2 and connected in parallel on the low impedance side to a balanceto-unbalance transforming circuit. The latter comprises two equal lengths 11, 12 of co-axial line, the input being applied to the end of one of them and the corresponding end of the other being open-circuited. The inner conductors of the two lines are connected together whilst the outer conductors are connected to the inner conductors of a further pair of co-axial lines 17, 18 whose outer conductors form a balanced pair. These lines are open-circuited at the points where they join the input terminals of the transformer windings. The transformer and the balun are in two shielding boxes separated by a common partition 5.
Patent GB-1199017-A (GB)
Title: Improvements in or relating to Electrodes for Electrochemical Cells
IPC: H01M4/88
Filed: 1967-06-26
Abstract: 1,199,017. Polymer/metal electrodes. LEESONA CORP. 26 June, 1967 [27 June, 1966], No. 29329/67. Headings C3C and C3P. [Also in Divisions B2 and H1] An electrode for use in a fuel cell is made by forming a mixture of electrochemically active metal, hydrophobic polymer particles and an expanding agent into a layer, heating the layer to bond the polymer particles to the metal and to each other and treating the resultant structure to decompose the expanding agent and expand the layer. The expanding agent may be removed by heating or by washing in a suitable chemical such as sulphuric acid. The metal may be columbium, nickel, iron, gold, copper, palladium, platinum, rhodium, ruthenium, osmium, iridium, and mixtures and alloys thereof. Examples of suitable polymers are polytetrafluoroethylene, polytrifluorochloroethylene, polyvinyl fluoride, polyvinylidenefluoride, polytrifluoroethylene, and copolymers thereof. The expanding agent may be one which can be expanded by heat or through a chemical reaction. Such materials include starch, ammonium bicarbonate, nitrate, thiocyanate, paraffin wax, polyethylene, nitrocellulose. In the example a paste comprising an aqueous dispersion of platinum black, polytetrafluoroethylene, and ammonium bicarbonate is spread upon one surface of a nickel screen, and the structure dried at 80‹ C. and lightly rolled. The structure is then heated at 360‹ C. to expand the catalytic layer.
Patent GB-484001-A (GB)
Title: Improvements in snap fasteners
IPC: A44B1/34
Filed: 1936-10-28
Abstract: 484,001. Press button fasteners. NEWEY, J. C., PENDRY, L. C., and PUNFIELD & BARSTOW, Ltd. Oct. 28, 1936, No. 29368. [Class 44] The socket-member of a press-button fastener is attached to the material 8 by means of a pin 3 secured to the socket-member. As shown, the socket comprises a flat-topped dome 1<1> pressed up from a plate 1 and the pin 3 has a head 4 resting on the dome and retained by a conical cap 5 secured by bending over the edge 12 of plate 1. The pin is pressed through the material and through the central aperture 6<1> of a radially slotted plate 6 carried by a button 7. The edges of the slots are preferably bent up slightly. The slotted formation allows the plate to yield as the pin is inserted, the edges of the slot biting into the pin, which may be serrated or roughened, to prevent its withdrawal. The socket has a stud-gripping wire spring 2 of usual kind.
Patent GB-319749-A (GB)
Title: Improvements in or relating to electrical circuit interrupters
IPC: H01H85/042
Filed: 1929-09-27
Abstract: 319,749. Associated Electrical Industries, Ltd., (Assignees of Slepian, J., and Mason, R. C.). Sept. 27, 1928, [Convention date]. Fusible cut-outs. - A fuse wire is enclosed in a channel of such dimensions that the voltage of the arc attains a value equal to the voltage of the circuit for a relatively low current value. Certain equations are. given in the Specification correlating the voltage per inch of arc and the current with the crosssection of a channel confining the arc. A fuse is designed from these equations that limits the current to a predetermined value when the fullcircuit voltage is applied to the ends of the arc upon the fuse being ruptured. The fuse wire 5, that may be of tungsten in preference to copper or nickel silver, lies in a channel 11 of spiral or zig-zag form cut in a block of soapstone 8. It is surrounded by a casing 2 of soapstone and connects with conducting plates 12, 13 and end caps 3, 4 having contacts 6, 7. The block 8 may be divided into two or three sections, the channel 11 being formed between them. A sudden fusion of the wire may be prevented by making a short piece of the fuse of high resistance wire and the remainder of low resistance wire.
Patent GB-324016-A (GB)
Title: Process for the manufacture of boron trifluoride
IPC: C01B35/06
Filed: 1928-10-12
Abstract: 324,016. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct. 12, 1928. Boron trifluoride is prepared from boric acid or a borate either by treating a fluoride with boric acid or a borate in sulphuric acid in presence of a dehydrating agent which may be sulphur trioxide or excess of sulphuric acid or by treating fluorosulphonic acid which may contain sulphuric acid with boric acid.
Patent GB-1530184-A (GB)
Title: Colour printing method
IPC: G03B27/73
Filed: 1976-07-15
Abstract: 1530184 Colour photography; camera KONISHIROKU PHOTO INDUSTRY CO Ltd 15 July 1976 [23 July 1975] 29508/76 Headings G2A and G2X A colour-positive print is formed by (a) recording an image of an object in a picture area of a colour negative material, (b) passing ambient light through a diffuser and on to a photo-sensitive portion of the material outside the picture area to expose the portion non-imagewise to ambient light; (c) photographically processing the negative colour photosensitive material to form a colour negative image in the picture area and a darkened area in said portion; and (d) and colour printing a colour positive from said colour negative, the printing light used being so colour-corrected that the non-imagewise exposed portion is reproduced on the colour positive with a predetermined colour and density. A camera for use in the above method comprises means for holding a negative colour photo-sensitive material, a light-transmitting diffuser, and optical means for transmitting light which has passed through the diffuser on to a photo-sensitive portion of the material outside a picture area to imagewise expose it to ambient light. Preferably the optical means comprises a shutter which is linked for operation with the main shutter and may also comprise a diaphragm linked to the main diaphragm.
Patent GB-450437-A (GB)
Title: Improvements in and relating to processes and machines for handling chewing gum for presentation to a wrapping machine
IPC: A23G4/04
Filed: 1935-10-28
Abstract: 450,437. Wrapping-machines. JENSEN, C. A., 77, Chancery Lane, London.- (Chewing Gum Machinery Corporation; 3233, Woodland Avenue, Philadelphia, U.S.A.) Oct. 28, 1935, No. 29700. Drawings to Specification. [Class 94 (i)] [See also Groups V and XI] The wrapping-machine described in Specification 293,907, [Class 94 (i)], is associated with means for extruding, sugaring, reducing as regards diameter, and subdividing chewing- gum.
Patent GB-1315433-A (GB)
Title: Centrifugal gas compressors having capacity control mechanisms
IPC: F04D29/46
Filed: 1971-06-24
Abstract: 1315433 Valves CARRIER CORP 24 June 1971 [2 Nov 1970] 29735/71 Heading F2V [Also in Division F1] An adjustable throttle valve located in the intake passage 23 of a centrifugal compressor is formed by a pair of semi circular plates 25, 27 pivotally mounted on a pin 21 with their straight edges extending normal thereto. The plates are simultaneously pivotable in opposite directions about the pin 21 by a motor 33 and linkage 40, 43, between the closed position shown in Fig. 1 and a fully open position shown in broken outline. The plates, in positions intermediate their closed and fully open positions, cause the incoming flow to swirl as shown in Fig. 4 in the direction of rotation of impeller 12.
Patent GB-219862-A (GB)
Title: Improvements in or relating to systems for multiplying frequency by means of electric transformers
IPC: H03B19/03
Filed: 1923-11-26
Abstract: 219,862. Dornig, W. Nov. 26, 1923. Frequency, changing.-A frequency-multiplying transformer 4 is provided with an auxiliary circuit comprising a capacity 8 and a large inductance 9, the auxiliary circuit being tuned as closely to the fundamental frequency of the generator 1 as is possible without causing an interferential tone to arise in the output circuit. One or more additional auxiliary circuits, tuned to harmonics of the fundamental frequency differing from the output frequency may also be provided as described in Specification 202,277.
Patent GB-861359-A (GB)
Title: An improved means for retaining the tape on the spools of sound recording and sound reproducing machines using tape as the recording medium
IPC: G11B15/67
Filed: 1958-09-18
Abstract: 861,359. Magnetic tapes; storage. MERRITT, L. F., and CRAWFORD, C. H. Sept. 15, 1959 [Sept. 18, 1958], No. 29836/58. Class 40 (2). [Also in Groups IX and XXXII] A wire spring member, Fig. 4, is anchored by loops 103, 104 in holes or recesses found in a tape-spool 11. An arm 102 may rest on the spool-cheek or may be sprung into the position of Fig. 2, where a coil 105 restrains the outer turns of the tape 13.
Patent GB-445887-A (GB)
Title: Improvements in and relating to methods of and apparatus for testing the fatigue strength of material
IPC: G01N3/38
Filed: 1934-10-19
Abstract: 445,887. Testing fatigue of materials. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and PARKER, W. B., 3, Murray Road, and JONES, I., 132, Grosvenor Road, both in Rugby. Oct. 19, 1934, No. 29988. [Class 106 (ii)] Comprises a method of testing fatigue in which a specimen strip is caused to vibrate in tune with the frequency of supply, the vibration operating an indicator until they fail to be in tune owing to development of a crack in the test piece. A steel rod Q forming a " vibrator " is clamped in a vice G. An alternating current magnet A is so fixed as to cause the rod Q to vibrate, the free length having been adjusted so that the vibrations are in tune with the frequency of the current. One end of the specimen strip J is placed in a notch in the end of the bar Q and the other end clamped in a vice H. The length of the specimen is chosen so that it also vibrates in tune with the current. Two insulated contacts K are provided to make intermittent contact with separately mounted fixed contacts D and thus energize a relay B which controls the main circuit of the magnet A and also a secondary circuit energizing an electric clock C operating at the same frequency of current as the magnet and recording tune in 12 or 24 hour periods as well as in minutes and seconds. This may be replaced by an hour meter. A rectifier E and condenser F serves to smooth out the voltage of the supply. When a crack occurs the circuit of the relay is broken and the test automatically stopped. An adjustable rider R helps to tune-in and the amplitude of vibration of the vibrator may be adjustable. The specimen may be arrayed for test under double cantilever conditions or to contain nodes and antinodes during vibration.
Patent GB-1108772-A (GB)
Title: High pressure electrical discharge lamps
Inventor: STEARN JOHN WILLIAM
IPC: H01J9/50
Filed: 1964-07-28
Abstract: 1,108,772. Discharge lamps. MINISTER OF TECHNOLOGY 7 May, 1965 [28 July, 1964], No. 30012/64. Heading H1D. A high pressure discharge lamp includes a tubular envelope having an outer jacket, and pair of olectrodes respectively in good thermal contact with a pair of hallow supporting members sealed into opposite ends of the envelope, the arrangement being such that coolant may be passed through the two supporting members and through the outer jacket. In a high power xenon lamp, the tungsten electrodes 1 and 3, of which the conical cathode 3 has a thoriated tungsten wire welded to its tip, are positioned by alumina spacers 29, 31 and brazed into copper. cups 5, 7 which are themselves brazed to the ends of the cupro-nickel tubes 9, 11. The electrodes are each separately cooled by fluid circulated through the tubes 9, 11, via tubes 45, 49. The silica envelope 21 is sealed to the tubes 9, 11 Within the copper caps 13, 17, and is independently cooled by fluid circulated through the silica cooling jacket 33, which has inlet and outlet pipes 39, 41 and is sealed to the outer copper caps 15, 19 by epoxy resin, lead, or wax. The envelope is exhausted, and filled with xenon at 20 1b./sq. inch, through the tube 32. In another embodiment (the Figure accompanying the Complete Specification, not shown), a single supply of coolant feeds both the cooling jacket 33, and-via apertures in tubes 9, 11-the two electrodes, the header assemblies for the cooling system being detachably sealed by 0-ring joints and compression collars.
Patent GB-1390853-A (GB)
Title: Method of fabricating semiconductor devices
IPC: H01L21/00
Filed: 1972-06-27
Abstract: 1390853 Semiconductor devices WESTERN ELECTRIC CO Inc 27 June 1972 [1 July 1971] 30040/72 Heading H1K A method of fabricating a semiconductor device includes forming a film of a volatisable metal on the surface of a semiconductor body, selectively removing parts of the film using an electron beam, and implanting ions into the body so exposed. The metal may be of cadmium or bismuth. Following the first implantation further portions of the film may be similarly removed and further ions implanted into the body. The volatization and implantation steps may take place in a continuous vacuum. The implanted ions may be of arsenic or boron, and the body of silicon. A heat treatment may be employed to anneal and drive in the ions following implantation.
Patent GB-749982-A (GB)
Title: Table or wall clock
IPC: G04B19/08
Filed: 1954-10-19
Abstract: 749,982. Clocks. SCHMIDT METALLWARENFABRIK, GEB. Oct. 19, 1954 [Aug. 31, 1954], No. 30054/54 Class 139 A clock is made in the form of a sundial and comprises a dial 1, Fig. 1. having the hour numerals 2 arranged in the sequence 6-12, 1-6 round a semi-circular opening behind which rotates a disc 4 carry. ing a shadow-representing pointer 5. Projecting downwardly from the centre part 7 of the dial is a gnomon representing rod 8. The disc carries round its periphery the signs of the zodiac which are viewed through windows 9 in the dial.
Patent GB-848577-A (GB)
Title: Improvements in windscreen wiper arm assemblies
Inventor: ROW WALTER JOHN
IPC: B60S1/34
Filed: 1957-09-25
Abstract: 848,577. Windscreen wipers. TRICOFOLBERTH Ltd. Sept. 19, 1958 [Sept. 25, 1957], No. 30127/57. Class 138(1). A windscreen wiper, especially for windscreens curved in side elevation, has a flexible blade 24 carried by two spring-loaded arms 2, 4 extending from a single axis of oscillation 10, one arm applying pressure through a superstructure 16, 20 to the radially outer part, and the other through a superstructure 18, 22, to the radially inner part, of the blade. The connections between the superstructures and the blade are by claws on the yoke engaging round the edges of a flexible backing strip for the blade and at substantially equally spaced points along the blade.
Patent GB-1503448-A (GB)
Title: Circuit arrangement for producing a pulse train
IPC: H03K3/00
Filed: 1976-07-20
Abstract: 1503448 Gating circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 July 1976 [23 July 1975] 30143/76 Heading H3T In a circuit for providing a pulse train with a desired envelope, and zero D.C. component, the envelope control signal is applied to the bases of two transistors Tl, T2 one of which is turned on and off by a pulse source 10. The ouptuts of transistors T2, T1 are respectively fed to the circuit output directly and through an inverting current amplifier 6 having a gain chosen so that the D.C. output from T2 balances the D.C. component of the pulses produced by T1. As described the amplifier 6 is a "current mirror" with gain of - 2 for a pulse train of unity mark-space ratio. In another embodiment, Fig. 3 (not shown), the D.C. from T2 passes through the current amplifier which has a gain of -¢ and T1 is turned on and off by voltage pulse source instead of the current source of Fig. 5. In another embodiment, Fig. 6 (not shown) T1 is connected to the amplifier by a switch comprising an emitter coupled pair actuated by the pulse source. An array of circuits may be used to combine harmonically related trains of square waves to produce sawtooth waves for use in an electronic musical instrument.
Patent GB-436615-A (GB)
Title: Improvements in, and relating to lifeboat launching gear
IPC: B63B23/36
Filed: 1934-10-22
Abstract: 436,615. Boat-lowering gear; fenders. HUNT, D., Drumore, Lady Mary Road, Cardiff. Oct. 22, 1934, No. 30161. [Classes 113 (i) and 115] Fenders or skates attached to the sides of ships' boats and designed to take impacts with the ship's side during boat-lowering operations, comprise articulated chocks a shaped to present a continuous outer surface, the chocks are bound by flat straps b which terminate at each end in eyes c which with pins z hinge the chocks together. The strap for the top chock hooks over the gunwale. At the other side the connection comprises a fitting f engaged by a screwed bolt i adjusted by the nut g and connected by the lanyard e with a shackle d in the lowermost chock.
Patent GB-927057-A (GB)
Title: Gripping devices for elongated members such as cables and the like
IPC: H02G3/06
Filed: 1959-09-04
Abstract: 927,057. Waveguides. CANNON ELECTRIC CO. Sept. 4, 1959 [April 3, 1959], No. 30236/59. Class 40 (8). [Also in Groups XXVIII and XXXVI] A gripping device for an elongated member, such as the sheath 26 of a cable 14 where it enters a coupling 10, comprises a pair of annular rings 82, 90 with parallel conical faces 114, 156 located in a socket 38 in the tubular coupling body 28 and adapted, on tightening a collar 102 screw-threaded on the body 28, to compress between them a series of nested conical washers 84, 86, 88 so that the inner edges of the washers are forced into the cable sheath and the outer edges engage the inner surface of socket 38, the outer edges of washers 86, 88 and ring 90 being formed with flanges 138, 152 and 160 respectively which overlap the adjacent washer to limit the amount of flattening of the washers. A nut 112 screws into the outer end of collar 102 to compress a resilient sleeve 108 on to the cable sheath. A similar gripping device is provided at the opposite end of body 28 for a second cable 12; the inner conductors 16, 22 of the cables are received in sockets 54, 56 located in the body 28 by insulating inserts 42, 44 and connected by a collar 52. The cable sheaths may consist of insulating or conducting material and in the former case, the conical washers may be formed of non-metallic material. Fig. 8 shows the gripping device adapted for securing a radiofrequency transmission tube 180 in a retaining device 182. As before, a collar 212 compresses nested conical washers 196, 198, 200 between rings 190, 204. The washers in this case do not have flanges at their outer edges.
Patent GB-1367812-A (GB)
Title: Stable concentrated aqueous solutions of basic oxazine dyestuffs  their preparation and use
IPC: C09B67/34
Filed: 1972-06-28
Abstract: 1367812 Basic dye compositions FARBWERKE HOECHST AG 28 June 1972 [7 July 1971] 30264/72 Heading D1B Basic dye aqueous compositions comprise '15 to 50% by weight of an inorganic or organic salt of a basic oxazine dye at least one aliphatic carboxylic acid in which the aliphatic residue contains 1 to 4 carbon atoms, urea, water and optionally water-soluble organic solvents. Mono- or di-carboxylic acids may be employed, e.g. formic, acetic, propionic, maleic and lactic acids. The compositions are prepared by dissolving dye powder in the form of the free base or an inorganic or organic salt thereof in a mixture of urea, the aliphatic carboxylic acid, water and optionally the water-soluble organic solvent which may be glycols, methyl glycols, butyl glycols, diethylene glycols, triethylene glycols, propandiols, butandiols, hexandiols, glycol carbonates, glycerol or glycerol monoacetate, dimethyl sulphoxide, dimethyl formamide, and #-oxypropionitrile. Anionic modified polyester, polyamide and polyacrylonitrile fibres may be dyed or printed.
Patent GB-672814-A (GB)
Title: Process and apparatus for manufacturing capsules
IPC: A61J3/07
Filed: 1949-11-25
Abstract: 672,814. Moulding by dipping. PARKE, DAVIS & CO. Nov. 25, 1949, No. 30277/49. Class 87(ii) In the method of making hard-shell medicinal capsules which comprises dipping a mould pin in a solution of capsule-forming material and withdrawing the pin with an adherent coating of the material, the coated pin is subjected to cooling air directed through a hood in order to set the composition before the coated .pin is allowed to remain stationary for any substantial length of time. The invention is described as an addition to the capsule making machine described in Specification 360,427 in which mould pins P arranged in rows on strips G are assembled in groups of five strips and dipped in a tank of the heated capsule-forming composition (not shown). The set of strips is then raised on a rotating elevator E' and displaced laterally on to a table K, with the pins upward. When four groups of five strips each G<SP>1</SP>-G<SP>4</SP> are on the table they are moved to the right into the second position P<SP>2</SP> and a new set of four groups is assembled in the first position P' and so on, the groups being intermittently advanced to the right towards a drying stage (not shown). The rotation of the elevator E<SP>1</SP> prevents the coating on the mould pins from running until they are placed on the table K. The pins are then subjected to a stream of cool air (less than 65‹F.) from a hood H fed from a pipe M. Each pin receives a jet of air from a hole H<SP>2</SP> in a plate covered by a filter web H<SP>3</SP>. This sets the coating quickly and enables the machine to be used for materials which take longer to set than ordinary gelatin, such as for example the composition described in Specification 638,284, or cellulose acetate phthalate, polyvinyl alcohol, cellulose acetate, or ethyl cellulose.
Patent GB-696652-A (GB)
Title: Improvements in or relating to hair curl clips
Inventor: LEON ISOLINA I
IPC: A45D8/20
Filed: 1950-12-12
Abstract: 696,652. Hairdressing appliances. LEON CO., Inc. I. Dec. 12, 1950, No. 30324/50. 'Class 131 [Also in Group XXV] A hair curl clip comprises top and bottom members 12, 11, which have co-operating forked jaws 22, 13 surrounded by an elastic band 30, nesting hump-shaped portions 20, 15, and handle portions 21, 14, the handle 21 being inclined upwardly to a greater degree than the handle 14, and a portion of the jaw 22 being curved upwardly away from the jaw 13 and engaged by the elastic band. The nesting portions 20, 15 form a fulcrum round which the jaws pivot to open to receive a coiled tress when the handles 21, 14 are approximated, by finger pressure against the action of the rubber band.