baber/WOPTO huggingface dataset:
Patent GB-1098519-A (GB)
Title: Improvements in or relating to audio circuit arrangements
Inventor: OSBORNE ROBERT
IPC: H03G3/30
Filed: 1965-10-27
Abstract: 1,098,519. Volume compressor circuit. MULLARD Ltd. Oct. 27, 1965, No. 45481/65. Heading H4R. In an a.g.c. circuit, e.g. for the recording amplifier in a tape recorder, the amplifier output is rectified by diode D 2 , Fig. 1a, and applied to control the current through a transistor T 1  the base emitter circuit of which is connected as one element in an attenuator circuit connected in the amplifier input circuit. A diode D 1  is connected in series with the transistor as far as D.C. is concerned but in parallel with the base emitter junction as far as A.C. signal currents are concerned. The diode D 1  modifies the slope resistance characteristic of the base-emitter junction and so reduces second harmonic distortion in the amplified signal. The other component in the attenuator, i.e. R 1 , may be the output impedance of a pre-amplifier. The recovery time of the a.g.c. control circuit, defined by capacitor C 4  and resistors R 3  and the effective resistance presented by the base of transistor T 1 , and since the latter may be high at low signal levels a resistance R 4  is provided to limit the maximum recovery time, which is normally of the order of 10 minutes. To provide a shorter recovery time after, e.g. an impulsive disturbance a push-button SW is provided to introduce a resistor RS across C 4 .
Patent GB-1166360-A (GB)
Title: Passivation of Ferrous Metal
IPC: B22F9/00
Filed: 1967-10-05
Abstract: 1,166,360. Coated metals. ESSO RESEARCH & ENG. CO. 5 Oct., 1967 [1Nov., 1966], No. 45510/67. Heading B2K. Ferrous metal is rendered passive to backoxidation and hydrogen generation by contacting the exterior surface of the metal with a liquid containing a dimetallo-substituted organo-silane diol of formula: (in which R is hydrogen, monovalent hydrocarbyl radical, M is an alkali metal) to form a film, and then' reacting the film with moisture and carbon dioxide to form a cured resinous material which is impervious to moisture, corrosive gases, fumes and impurities. The metal may be in the form of a powdered metal or a porous, compacted form e.g. a briquette. The metals may be those produced in direct iron ore reduction processes. Liquids mentioned include water, organic, e.g. hydrocarbon, solvents. The liquid may be applied by spraying, dipping, immersing. Curing can be effected by subjecting the film to treatment with moist air where moisture is not already present in the film.
Patent GB-1068776-A (GB)
Title: Method and apparatus for producing a magnetically confined hot dense plasma
IPC: H05H1/22
Filed: 1964-11-09
Abstract: 1,068,776. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Nov. 9, 1964 [Dec. 9, 1963], No. 45513/64. Heading G6P. In a thermonuclear device, plasma formation is effected by dissociation of injected, highenergy ions of, for example, H 2 <SP>+</SP>, D 2 <SP>+</SP>, T 2 <SP>+</SP> or HD<SP>+</SP>. Upon dissociation the H<SP>+</SP> ions describe circular orbits in the magnetic field which have half the radius of the orbits of the undissociated particles and are trapped and retained within the plasma. An initial plasma is formed, prior to the ion injection, by He<SP>6</SP> and He<SP>4</SP> produced by the reaction in a fission reactor. The He<SP>4</SP> ions are trapped by the electrostatic field formed by relativistic electrons generated by the decay of He<SP>6</SP> to Li<SP>6</SP>. The electrons are confined in the magnetic field of the device. Hydrogen gas is admitted and the He<SP>4</SP> ions are purged by a charge exchange reaction, thereby leaving a plasma formed of cold protons, i.e. hydrogen ions and energetic electrons. After magnetic compression of the plasma, the ions to be dissociated are admitted to raise the hot plasma density to fusion point, dissociation being effected by the cold portions. The containing vessel is an evacuated cylinder surrounded by a magnetic mirror forming solenoid.
Patent GB-1096709-A (GB)
Title: Device for filling electric batteries with electrolyte
Inventor: SANDERS JOHN ALAN
IPC: H01M50/609
Filed: 1965-10-27
Abstract: 1,096,709. Filling batteries. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 14, 1966 [Oct. 27, 1965], No. 45598/65. Heading B8T. [Also in Division H1] A battery filler comprises a frame 11 to receive batteries 12 to be filled and mounting a filling block 14 having chambers 15 corresponding in number to the number of cells in each battery, the volume of each chamber being the same as the volume of electrolyte required to fill a cell. A nozzle 18 of such small bore as to prevent normal gravity flow of electrolyte from the bottom of each chamber 15 leads into the associated cell. When the chambers 15 have been filled, suction is applied to interconnected passages 22, 19, so that electrolyte is drawn from the chambers 15 through the nozzles 18 into the cells. The filling block 14 is secured to the frame 11 by cavities 13.
Patent GB-1197805-A (GB)
Title: Perfluoro-Tertiary-Alkanols and Process for their Preparation
IPC: C07C31/34
Filed: 1967-10-06
Abstract: 1,197,805. Perfluoro - tertiary - alkanols. FARBWERKE HOECHST A.G. 6 Oct., 1967 [7 Oct., 1966], No. 45653/67. Heading C2C. Novel perfluoro-tertiary-alkanols of the formula (CF 3 ) 2 CF-CR f <SP>1</SP>R<SP>@2</SP>OH, wherein each of R#<SP>1</SP> and R#<SP>2</SP> is a C 1-3  perfluoroalkyl group, are made by reacting perfluoroketones with fluorides of potassium, rubidium or caesium in inert polar solvents, adding hexafluoropropylene to the reaction mixture and hydrolysing the compounds so obtained.
Patent GB-1148946-A (GB)
Title: Electrostatic liquid filter
IPC: B03C5/02
Filed: 1966-10-14
Abstract: 1,148,946. Electrostatic separators. HYDRO MATION ENG. CO. 14 Oct., 1966 [14 Jan., 1966], No. 45909/66. Heading B2J. In an electrostatic separator for removing solids from a liquid, e.g. a hydrocarbon oil of high dielectric strength, the solids - liquid mixture is caused to flow between, and in contact with, a plate electrode 14, Figure 1, and a number of point source electrodes 16 spaced from each other in series along the electrode 14, while an electrostatic field is applied between the electrodes 14 and 16 so as to cause deposition of the solids from the mixture on to the electrode 14 from the surface of which the solids are periodically removed. As shown, a number of plate electrodes 14 are mounted in a container 10 with rows of point source electrodes 16 on either side. The mixture enters at 12 and the purified liquid leaves at 20. A vibrator unit 11 is connected to the electrodes 14 and 16 for periodically removing the solids accumulated on the electrodes. In Figures 3 and 4, the plate electrodes are mounted on a frame 28, 30, 32, 34 and each row of wires is carried by a frame 46, 48. Electrical connections are made to the wires at terminals 38 which are electrically isolated from the plate electrodes by insulators 40, the latter being provided at the top of the separator above the liquid in the container.
Patent GB-1170466-A (GB)
Title: Improvements relating to Roof Racks for Vehicles
Inventor: STOCKTON ROLFE
IPC: B60R9/045
Filed: 1967-10-07
Abstract: 1,170,466. Vehicle roof racks. DESMO Ltd. 7 Oct., 1968 [7 Oct., 1967], No. 45975/67. Addition to 1,052,903. Heading B7J. An improvement in the vehicle roof rack claimed and described in the parent Specification, wherein the leg frames are tubular, consists in the foot 19 of each leg 14 being adjustable longitudinally of the leg and rotatable about a longitudinal axis of the leg by means of a screw portion 23 mounted coaxially with a substantially cylindrical upper portion 20 of the foot and engaging in a threaded plug 25 secured in the end of the bore of the leg 14. A synthetic plastics, e.g. polyvinyl chloride, sleeve 28 encloses the connection between foot and leg. A pair of leg frames are provided at each of opposite sides of the rack.
Patent GB-1273745-A (GB)
Title: Fluidic switching circuits
Inventor: HEATH RONALD ALFRED
IPC: F15C1/10
Filed: 1968-09-30
Abstract: 1,273,745. Fluid logic circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 12, 1969 [Sept. 30, 1968], No. 46264/68. Heading F1P. A bi-stable device 10 having control ports 14, 15 has the output 12 connected through a restrictor 22 to the port 20 of a continuously variable proportional amplifier device 19 the other output 13 of the device 10 being connected to the other control port 21 of the device 16. The restrictor 23 between the control ports and the restrictor 22 are adjusted to give optimum recovery at port 18 when pressure P1 at port 14 rises above P2 at port 15. The inherent high hysteresis in this circuit may be reduced by a further bi-stable device in each conduit from the outlet ports 12, 13 to the control ports 20, 21. Alternatively a single monostable device may have its control port connected to the outlet 13 and its outlet ports similarly connected through restrictors to the proportional amplifier control ports 20, 21.
Patent GB-1197292-A (GB)
Title: Calculator
Inventor: OSBORNE THOMAS E
IPC: G06F3/02
Filed: 1967-06-21
Abstract: 1,197,292. Digital calculators. HEWLETTPACKARD CO. 21 June, 1967 [23 June, 1966], No. 46629/69. Divided out of 1,197,291. Heading G4A. In an electronic calculator having a memory, a power source for logic circuitry is switched on, in response to a control signal generated within the calculator itself, only when the logic function(s) is/are to be executed. The disclosure is as in Specification 1,197,291 which is referred to.
Patent GB-1013977-A (GB)
Title: Apparatus for use in feeding running lengths of multi-component material
IPC: D05C15/00
Filed: 1963-11-26
Abstract: 1,013,977. Sewing machines. CALLAWAY MILLS CO. Nov. 26, 1963 [Jan. 23, 1963], No. 46647/63. Heading D1G. In apparatus comprising yarn-feeding means moving in a path away from the fed yarn, a heated surface is so positioned as to engage and sever a strand caught on said means and thereby separated from the fed yarn. In a tufting machine, Fig. 2, having yarn-feeding means comprising plate elements 15 carried by an endless chain 11 and formed with matches 16 of varying depths,and intermeshingplate elements 17 carried by an endless chain 12 and formed with notches 18 of uniform depth, an electrically-heated wire 20 is positioned at the outlet of the feed means transversely to the movement of the yarn 7, whereby strands 19, stripped from the latter by the action of the notches 16, are severed thereat. In a modification comprising intermeshing plate elements carried by respective rotary discs, a heated wire is provided in association with each disc. In Fig. 7 a yarn 33 is fed by parallel rolls 34, 35, and heated wires 36, 38 are positioned at the respective outlets of the rolls to sever strands 37, 39 which may be stripped from the yarn by the roughened surface of the rolls.
Patent GB-468142-A (GB)
Abstract: 468,142. Cycle &c. mudguards. BLUEMEL BROS., Ltd., and BLUEMEL, F. W. Jan. 9, 1936, No. 731. [Class 136 (i)] A support for securing the inner ends of mudguard stays to cycle &c. frames is constructed to permit of the stays being adjusted in relation to the support in a direction along their length, and also to permit of the angle between the stays being varied, or in the case of a single stay, to permit of angular as well as longitudinal adjustment of the stay between a pair of jaws constituting the support. The stay support comprises two jaws 10, 11, the jaw 10 being of plane strip-like form and having an opening 12 for pivotal attachment to a clip &c. on the cycle fork, while the jaw 11 is of channel section. The two jaws are connected together, so as to clamp the inner ends of the stays 21 between them in longitudinally and angularly adjusted position, by means of a bolt 14, the head 16, Fig. 3, of which is adapted to be passed through a slot 13 in the jaw 10 and then turned through 90‹, the parts being locked by a wing-nut 19. The inner part of the bolt head 16 is formed with flats engaging the sides of the slot 13 to prevent rotation. Relative rotation between the jaws 10, 11 is prevented by lugs 20 engaging the edges of the jaw 10.
Patent GB-1437198-A (GB)
Title: Multiple pane assembly
IPC: C03C27/12
Filed: 1973-10-08
Abstract: 1437198 Glazing SAINT-GOBAIN INDUSTRIES 8 Oct 1973 Oct 1972] 46933/73 Heading E1R A multiple pane assembly comprises panes 1 separated by a member 10 adjacent their periphery, a heating element 2 deposited on the internal surface of one pane, conductive elements 3, (4) connecting the heating element 2 to terminals 7, (8) and extending outwardly beyond a region of contact with member 10. Elements 3, 4 each extend around substantially half of the periphery and are spaced by gaps 5, 6. The ends of the elements attached to the terminals are extended outwardly. The spacer 10 comprises metal sides with insulating corner pieces, or a metal member painted with insulating varnish. Sealant 12 of adhesive, and an adhesive band 13 are provided.
Patent GB-1024164-A (GB)
Title: Hand grip
Inventor: ANSELM ANTHONY CESAR
IPC: A45F5/10
Filed: 1963-11-28
Abstract: 1,024,164. Carrying handles. CREATORS Ltd. Nov. 27, 1964 [Nov. 28, 1963], No. 47047/63. Heading A4G. A hand grip which may be of extruded plastics material comprises a tubular member 1 longitudinally slit at 2 with the edges 3 of the slit directed towards the interior of the member and adjacent each other so that the string on a parcel or bag is retained within the member.
Patent GB-1403034-A (GB)
Title: Tubular member for tunnel excavation use
IPC: E21D19/04
Filed: 1972-10-12
Abstract: 1403034 Tunnels etc; metal beams NISHIMATSU CONSTRUCTION CO Ltd 12 Oct 1972 [15 Oct 1971] 47141/72 Headings E1F and E1K A tubular member suitable for use in the method of constructing and lining a tunnel forming the subject-matter of Specification 1403033, is provided with an annular longitudinally-slotted, female coupling member 3, and a male coupling member 2 having a cylindrical portion 21. The coupling members may be diametrically opposite as shown or deviate from the diametrically-opposite positions, and are preferably steel.
Patent GB-990537-A (GB)
Title: A dwarf flash lamp
IPC: F21K5/08
Filed: 1962-12-14
Abstract: 990,537. Flashbulbs. PATENT-TREUHANDGES. FUR ELEKTRISCHE GLUHLAMPEN m.b.H. Dec. 14,1962 [Dec. 15,1961], No. 47263/62. Heading G2L. [Also in Division H2] A flash bulb comprises a glass envelope, which is filled with finely divided combustible material and oxygen and encloses an electrode mount with leading-inwires passing through the envelope to the outside, and a splinterproof transparent self-supporting capsule which loosely surrounds the envelope and to one end of which the leading-in wires are connected so that the capsule at this end forms the base of the bulb. Preferably the capsule is of synthetic plastic, such as polystyrene or a polycarbonate resin, or of cellulose acetate and may be coloured. As shown, the capsule consists of two parts 4, 5 which are connected together after insertion of the bulb envelope 1,the dome-shaped part 4 surrounding the envelope 1 except at the end where the leading-in wires 7 emerge and the part 5 surrounding this lower end and being shaped to form the bulb base. The wires 7 are clamped between the parts 4,5 so as to expose portions of the wire on the outer surface of the part 5 and pass through holes 11 in this base part around which they are bent at 12, (see also Fig. 4 not shown). The two parts 4, 5 may be a friction fit or may be stuck or welded to each other. Alternatively a bead-and-recess snap connection may be provided. A reflecting foil may be provided between the capsule and envelope as a built-in reflector.
Patent GB-1182948-A (GB)
Title: Extrusion of Metals and Alloys.
Inventor: COURTNEY RONALD JOHN ALAN
IPC: B21C9/02
Filed: 1967-10-17
Abstract: 1,182,948. Extruding. HENRY WIGGIN & CO. Ltd. 17 Oct., 1968 [17 Oct., 1967], No. 47274/67. Heading B3P. [Also in Division C5] In a hot extrusion process a lubricant comprising calcium silicate and asbestos fibre is used. The fibre amounts to from 2 to 15% of the composition by weight. It is formed from a mixture of lime, quartz, kieselguhr, chrysotile asbestos and water mixed into a slurry and heated under pressure. The lime and quartz react to form calcium silicate. The solidified mass is cut into discs and placed between the die and the billet. The billet is preferably nickel or nickel alloy and a sheet of glass cloth is wrapped around the billet prior to extrusion.
Patent GB-1464750-A (GB)
Title: Circular knitting machines
IPC: D04B15/82
Filed: 1974-10-31
Abstract: 1464750 Knitting machines ELITEX ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 31 Oct 1974 [12 Nov 1973] 47287/74 Heading D1C The needles of a circular knitting machine are selected through selectors 3 which are biassed by associated springs 18 and are selectively acted on against the spring force by an electromagnet 14, the springs normally acting to rock butts 3' of the selectors into a wedge shaped recess 13 for subsequent lifting by a cam 25 unless the selectors are held by the electromagnet, the force of the springs 18 being adjustable in accordance with the resistance to motion of the individual selectors and the selectors being adjustable longitudinally in their tricks by means of an adjustable cam 11 upstream of the recess 13 so as to adjust the effective width of the recess and hence the time available for selection. A radially displaceable cam 10 may be used to cancel the selection. An axially adjustable ring 12 supports the selectors. Reference has been directed by the comptroller to Specification 1394777.
Patent GB-1140962-A (GB)
Title: Improvements relating to telephone dialling apparatus
IPC: H04M1/272
Filed: 1966-10-21
Abstract: 1,140,962. Automatic impulse transmitters. P. C. MILHAT. 21 Oct., 1966 [4 Nov., 1965], No. 47338/66. Heading H4K. Digits of a telephone number are successively keyed into storage locations of a mechanical store which is read upon command to effect transmission of digital impulses to line as many times as desired. The store may eventually be cleared either upon command or automatically upon replacing the hand set at the end of a call. The keys, which are shown in Fig. 1 as two rows of five although one row of ten or three rows of three plus one key may be used, engage when depressed, a corresponding one of a row of spring biased plungers PL which depress a particular one of ten storage buttons PO in one row of ten rows of such buttons arranged around a cylinder CP. Successive operation of the keys brings successive rows of buttons into alignment with the plungers. To ensure that only one key can be depressed at a time, a depressed key must push its way through a row of beads BL whose spacing allows only one key to enter. The storage buttons comprise a split pin having a bulge in each half which co-operate with one of two sets of hollows in the cylinder wall depending on whether the button is depressed or not. When all the digits have been stored, impulse transmission is started by key T1, whose effect may be made conditional upon either the removal of the handset or receipt of dialling tone, and the cylinder rotates to a position to bring the first row of buttons into correspondence with a row of pairs of spring contacts (not shown), one of which is operated according to the button depressed thence digit stored. An unspecified device is thereby operated to transmit the required number of impulses to line, after which it controls an escapement mechanism to present the next row of buttons to the spring contacts. At the end of transmission the cylinder is automatically returned to its home position from where is is either driven forward again in response to key T for a further reading of the store or the store is cleared either in response to key T<SP>1</SP> or automatically on replacing the handset by means of an arcuate corrugated plate VG being moved rightwards by electromagnet EM to push all the depressed buttons upwards. Key T<SP>1</SP> may be operated whilst the digits are being inserted if a mistake has been made, whereupon the cylinder is rotated to its home position for clearing. A device is described for attachment to a telephone dial in which a plate carrying a series of plungers initiates manual dialling by inserting a particular one of the plungers into a finger hold and rotating the plate in response to the closing of a particular pair of read-out spring contacts. The keys may additionally produce a temporary or permanent record of the telephone number: which record may also contain the date and duration of the call.
Patent GB-1236203-A (GB)
Title: New surface-active compounds and preparation thereof
Inventor: SOWERBY AUSTEN EDGAR
IPC: C09K23/00
Filed: 1967-07-07
Abstract: 1,236,203. Mixtures of sulphonated dialkyl ketones. MARCHON PRODUCTS Ltd. 5 July, 1968 [7 July, 1967; 19 Oct., 1967], Nos. 31358/67 and 47720/67. Heading C2C. [Also in Division C5] A mixture comprising substantially non- symmetrical sulphonated dialkyl ketone salts having 10-30 carbon atoms and being sufficiently water-soluble to exhibit surface-active properties may be prepared by oxidation of C 10-30  paraffin hydrocarbons with molecular O 2  to give a mixture of substantially non- symmetrical C 10-30  secondary alcohols and ketones, optionally purifying the mixture to concentrate said ketones, and reacting the ketones with a sulphonating agent followed by neutralization with a base. The oxidation may be carried out in the presence of a boron compound at 180-220 C. and the alcohol removed as a borate ester, or in the absence of a catalyst at 160-180 C. to form a secondary alkyl hydroperoxide and the alcohols present may be dehydrogenated to yield ketones. The sulphonation is preferably carried out using SO 3 , an amino compound or an organic phosphate or phosphite ester being optionally introduced into the reaction system after the reaction has commenced and the sulphonation product is preferably neutralized by an alkali metal compound. The mixture of sulphonated dialkyl ketones may contain 70-80% of monosulphonated ketones.