baber/WOPTO huggingface dataset:
Patent GB-1219211-A (GB)
Title: Process for the production of magnesium
Inventor: AVERY JULIAN MILES
IPC: C22B26/22
Filed: 1968-11-04
Abstract: 1,219,211. Producing magnesium. J. M. AVERY. Nov. 4, 1968, No. 52248/48. Heading C7D. Magnesium is produced by charging to the reaction zone of a furnace a reductant consisting of Al, Si, iron and inpurities in proportions such that its composition is in the area defined by curve 20 of Fig. 2, the rates of Si to A1 being at least 0À8: 1, and an oxidant comprising a major proportion of Mgo and having a molar ratio of MgO to CaO at least 2:1. The reaction zone is maintained at a temperature of at least 1400‹C. and contains a molten slag comprising, with common components such as a flux, 5-25% MgO and, as the remainder, CaO Al 2 O 3  and SiO 2  in proportions such that the composition, excluding said MgO and common components, falls within curve 10 of Fig.1. The vapour space of the furnace may contain an inert gas such as argon, heluim or hydrogen. Mg may be distilled at atmospheric or reduced pressure.
Patent GB-1448900-A (GB)
Title: Emulsion deying
IPC: G01N1/30
Filed: 1974-12-04
Abstract: 1448900 Biological stains BLOCK ENG Inc 4 Dec 1974 [19 Dec 1973] 52475/74 Heading G2J An emulsion is used in which the dispersed medium acts as solvent for the dye and acts as a reservoir supplying the continuous phase. The latter may also contain a further dye either dissolved therein or supplied from a further dispersed medium. The technique is particularly useful for handling dyes that normally react together if used in a common solvent. Solvents and dyes are specified.
Patent GB-1249128-A (GB)
Title: Improvements in or relating to angular rate sensors
IPC: G01C19/5635
Filed: 1968-11-07
Abstract: 1,249,128. Measuring rate of turn electrically. HONEYWELL Inc. Nov. 7, 1968 [Nov. 16, 1967], No. 52848/68. Addition to 1,121,750. Headings G1C and G1N. Apparatus for measuring rate of turn is as described in parent Specification (Division G1) but the central support 22 is a flat metal tape which damps vibrations of the wire 12 in the plane of the tape but provides a flexible mount for vibrations in a preferred plane transverse of that including the support member 10. An electrically conductive wire 12 is supported at its ends 14, 16 and at its centre 22, thus being divided into first and second dynamically coupled portions, the first carrying a current from a signal generator 42 and interacting with the magnetic field from a first pair of magnets 32, 42 so as to cause the wire to vibrate at its resonant frequency in the preferred plane. A second pair of magnets 38, 40 produces a field in a direction parallel to the preferred plane so that, upon rotation of the apparatus about the longitudinal axis of the wire, inertia causes the rotary displacement of the plane of vibration of the wire to lag on that of the preferred plane thus inducing a current in the second portion of the wire. The amplitude of the current is proportional to the angular velocity of rotation and its phase sense depends upon the direction of rotation.
Patent GB-1527721-A (GB)
Title: Protecting buildings or building materials by the use of urea-formaldehyde compositions
IPC: C08L61/24
Filed: 1974-12-09
Abstract: 1527721 Urea-formaldehyde compositions H HURST 8 March 1976 [9 Dec 1974] 53130/74 Heading C3R [Also in Division D1] Compositions, suitable for the treatment of building materials, comprise (a) a urea-formaldehyde resin and (b) a water-soluble siliconate dissolved or dispersed in water. Organic solvents and/or polymer lattices may also be contained in the compositions. The siliconate is preferably an alkali metal or ammonium salt of a silanol and is particularly the sodium salt of methyl silanetriol.
Patent GB-1527986-A (GB)
Title: Apparatus for signalling systems of the kind in which binary information is signalled
IPC: H04L27/156
Filed: 1974-12-11
Abstract: 1527986 Data transmission; FSK systems GENERAL ELECTRIC CO Ltd 21 Nov 1975 [11 Dec 1974] 53572/74 Heading H4P An FSK receiver has a frequency multiplying circuit providing an output harmonically related to input, f.s.k. signals, and means identifying points in the output corresponding to zero transitions and peak amplitudes of input signals. The frequency multiplying circuit is fed through an a.g.c. amplifier and may provide an output frequency of twice the input, e.g. through a full wave rectifier. Input frequencies Fl, F2 are applied through a filter 1 to a.g.c. amplifier 2 to full wave rectifier 3. Output from 3 is led to a differentiator 4; zero crossings in the output from 4 are detected at 5 and then passed through a frequency discriminator 6 providing an output voltage proportional to input frequency through a discriminating filter 8 to a further zero crossing detector 7 which furnishes a binary waveform output in which transition points (22, Fig. 2, not shown) correspond in time to zero crossings and peak amplitude of incoming f.s.k. signals. In an alternative arrangement Fig. 3 (not shown) output of filter 1 is applied to an attenuating chain comprising resistor (25) and F.E.T. (26) also to amplifiers (27, 28) in series providing a half wave rectified output. This is compared with a reference in comparator 31 providing an offset voltage for F.E.T. 26 thus forming an automatic gain control loop. Differentiating amplifier (33) is connected across amplifier (28) via capacitors (35,36) and buffer amplifier (34) so that (33) receives half wave and complete signals in the ratio -2:1 which is substantially equivalent to a full wave rectified sine wave of double input frequency; output is amplitude limited by diodes (37) and resistors (38) providing a sawtooth waveform (39) which is applied to zero crossing detector 5 giving a square wave binary output.
Patent GB-1088180-A (GB)
Title: Tuning device for high frequencies
IPC: H05K9/00
Filed: 1965-12-20
Abstract: 1,088,180. Housings for electrical equipment. R. HOPT. Dec. 20, 1965 [Dec. 24, 1964], No. 53890/65. Heading H1R. In a H.F. tuning device comprising a troughlike casing 1, sub-divided into compartments by partitions 2, a cover 3 for the casing 1 consists of a thin resilient metal plate, e.g. of brass or bronze, having tongues 4 pressed out from the plate in resilient contact with upper edges of the side-walls of the casing and with partitions 2. Tongues 4 are trapesoidal, the longer end of each tongue being slightly upturned where it contacts the casing, and are directed outwards from a central axis 8, transverse to partitions 2. The cover 3 comprises double-flanged edge portions 11, 12 along three sides thereof, to enable the cover to be slid over flanged edge portions of the casing walls and to be fixed in position by bolts 14 which pass through holes 15 in the cover adjacent the fourth side thereof and are screwed into holes 16 in casing wall flange 7. In a modification, Fig. 4 (not shown), the flange 12 on the third side of the cover is omitted, the cover being held in position on the easing by means of a peripheral clip. In another modification, the tongued plate forms a resilient insert in a separate cover lid.
Patent GB-1139959-A (GB)
Title: Hydraulic driving systems
IPC: F16H39/00
Filed: 1966-12-02
Abstract: 1,139,959. Hydrostatic transmissions. STAMICARBON N.V. 2 Dec., 1966 [2 Dec., 1965], No. 54150/66. Headings F2C and F2D. In an hydraulic drive system for a conveyer wherein two hydrostatic transmissions each comprise an electric motor 6 (6<SP>1</SP>) driving a pump 5 (5<SP>1</SP>) which supplies pressure liquid to a motor 2 (2<SP>1</SP>), the motor speeds are maintained identical by providing a pressure equalizing line 11 between the high-pressure lines 3, 3<SP>1</SP> and the correct quantity of liquid is maintained in each transmission circuit by providing in the pressure equalizing line a motor 12 which is mechanically connected to a pump 13, in a return line 14 between the low-pressure lines 4, 4<SP>1</SP> so that when liquid flows through the pressure equalizing line 11 an equal quantity flows through the return line 11 in the opposite direction. The pump 12 and motor 13 may be gear type. Make-up pumps 9, 9<SP>1</SP> and pressure relief valves 7, 7<SP>1</SP> are provided.
Patent GB-1274100-A (GB)
Title: Record carrier handling device
Inventor: DAVIDSON RICHARD MICHAEL
IPC: G09B5/06
Filed: 1969-11-05
Abstract: 1,274,100. Feeding record tapes. BELL & HOWELL CO. 5 Nov., 1969 [29 Nov., 1968], No. 54258/69. Heading G5R. A capstan 32 and a transducer head 38 cooperate to drive a tape 40 until they encounter one of a series of apertures 88 therein. An associated second aperture 86 receives a sensor 92 which stops the drive motor 56 for the takeup reel 46 by opening a switch 90, which may be by-passed by the operation of a manual switch 100 to re-start movement of the tape 40. Visual material may be arranged in frames together with a magnetic sound track 42 along the tape 40. The tape and its reels 46, 48 and their drive motors 56, 66 are contained in a housing 43 which is removable from the player 10, to enable the latter to play back cards as well as tapes.
Patent GB-1419806-A (GB)
Title: 2-amino-4-2-imidazolyl-vinyl-pyrimidines their preparation and use and pharmaceutical compositions containing them
IPC: A61K31/505
Filed: 1973-11-23
Abstract: 1419806 2 - Amino - 4 - [5 - nitro - 2 - imidazolyl - vinyl] - pyrimidines ISTITUTO CHEMIOTERAPICO ITALIANO SpA 23 Nov 1973 [24 Nov 1972 25 May 1973] 54619/73 Heading C2C Novel compounds I in which R is C 1-6  alkyl are prepared by reaction of a compound II with a compound III in which one of R<SP>1</SP> and R<SP>11</SP> is methyl and the other is formyl in the presence of a dehydrating agent. Compounds I are anti-protazoal and antibacterial agents and form with a carrier a pharmaceutical composition which may be administered orally, parenterally or topically.
Patent GB-1126597-A (GB)
Title: A road vehicle spring suspension
IPC: B60G17/052
Filed: 1965-12-23
Abstract: 1,126,597. Vehicle suspensions. WESTERN UNIT CORP. 23 Dec., 1965 [4 Jan., 1965], No. 54719/65. Heading B7D. A suspension for a heavy load-carrying vehicle having a driven-axle casing 24 and differential gear unit 14 comprises a leaf spring assembly 20 bearing beneath a tube 31 in a hanger bracket assembly 30 and jointly connected to the axle with a beam 21 between which and the vehicle frame 13 is connected an air spring 22. A vibration damper 40 is connected between the beam 21 and frame 13 and pressurized air is supplied to or removed from the spring 22 through a control valve 46 operated in response to changes in the vehicle ride height through a linkage 50, 51. A draft spring-leaf 32 is connected between the hanger bracket 30 and the axle 24 and transverse stabilization is provided by a link 43 pivotally connected between the vehicle frame 13 and a bracket 45 attached to the axle. An identical arrangement may be provided for an additional axle arranged in tandem. The spring 20 and beam 21 may, alternatively, extend in opposite directions to those shown.
Patent GB-1203593-A (GB)
Title: Ventilation valves for heating and hot-water installations
Inventor: BLUME GERT
IPC: F16K24/04
Filed: 1967-12-04
Abstract: 1,203,593. Valves. G. BLUME. 4 Dec., 1967, No. 55016/67. Heading F2V. An automatic ventilation valve for heating and hot-water installations has a number of absorbent discs 6 contained in a chamber 5 which permit air in the installation to pass from a restricted passage 4 through longitudinal slots in a depending flange of the closure cap 9 and vent openings 8 into an annular space 14 so that air can circulate about the valve body to produce a back pressure before passing through a small hole 20 in a ring 13 threaded on to the valve body. When water contacts the discs 6 the latter swell to close communication of the passage 4 with atmosphere. A screw 19 with a cylindrical or conical end can close passage 4 when it is required to change the discs. In alternative embodlments a plain closure cap is held by burring over the valve body edge and the ring 13 is replaced by a semi-circular sectioned ring of elastic material with inner projections received in grooves about the valve body either side of the vent openings. The screw 19 may be dispensed with.
Patent GB-1383788-A (GB)
Title: Hard metal watch band
IPC: A44C27/00
Filed: 1972-11-30
Abstract: 1383788 Watch band SAWA SEIKOSHA KK 30 Nov 1972 [14 Dec 1971] 55298/72 Heading A3H A watch band comprises a series of polished shaped links 1 made from metallic carbide, metallic oxide or metallic nitride providing hardnesses of at least 700 Hv and preferably at least 1000 Hv, hinged together to form a flexible band. The hinge pins may be made of softer metal than that of the links provision being made for these to be mounted in sleeves of similar or plastics material inserted in the links.
Patent GB-1207319-A (GB)
Title: Temperature compensated magnetic focusing structure
IPC: H01J23/087
Filed: 1967-12-07
Abstract: 1,207,319. Electron beam focussing apparatus. INTERNATIONAL STANDARD ELECTRIC CORP. 7 Dec., 1967 [13 Dec., 1966], No. 55749/67. Heading H1D. A temperature-compensated permanent magnet periodic focussing structure includes a plurality of annular magnets 22 of which the strength decreases with temperature, adjacent magnets having like poles facing one another and being spaced apart by polepieces each of which is formed of an inner part 24 of low reluctance material having an external diameter less than that of the magnets, and an outer ring 28 of a material whose permeability decreases with increase of temperature within the range for which temperature compensation is desired. In the travelling-wave tube focussing structure shown, the magnets 22 are of barium ferrite ceramic, parts 24 of soft iron, and rings 28 of an iron/nickel alloy containing 30% nickel, which becomes non-magnetic at an elevated temperature. The arrangement may additionally include a prior art temperaturecompensating magnetic shunt 26, of a material having a somewhat lower permeability than the rings 28.
Patent GB-1262632-A (GB)
Title: Improvements relating to end fittings for insulating rods
Inventor: HOLMES RAYMOND
IPC: H01H33/02
Filed: 1967-12-08
Abstract: 1,262,632. Clamps. A. REYROLLE & CO. Ltd. 7 March, 1969 [8 Dec., 1967], No. 55957/ 67. Heading E2B. [Also in Division F2G] An insulating rod 11, e.g. in high-voltage switchgear, is secured to end fittings such as 10 by means of conical formations 25, 25a cut into the end portions of the rod and secured in appropriately shaped split collets 14, 14a secured by nut portions 12, 12a. The collet segments may carry a dash-pot piston 33 operating in a cylinder (52, Fig. 3, not shown). As shown, the collets are threaded, but in Fig. 3, they are plain and carried in externally threaded sleeves or in a plain bore.
Patent GB-1380427-A (GB)
Title: Apparatus for scanning the signals applied to an array of semiconduc tor devices
IPC: H01L21/00
Filed: 1971-12-06
Abstract: 1380427 Semi-conductor devices HITACHI Ltd 6 Dec 1971 [7 Dec 1970] 56612/71 Heading H1K [Also in Division H3] Fig. 5, shows an arrangement utilizing two devices of the invention each consisting of an integrated row of voltage-controlled elements with their control-electrodes resistively interconnected. The embodiment uses a monolithic array of silicon enhancement-mode IGFETs having silicon dioxide gate insulation and aluminium source 38, 36; drain 35, 41; and gate 39, 40 electrodes. Each transistor in the upper row has its drain 35 connected to source  36 of the corresponding transistor in the adjacent row to provide a series arrangement. Within each row the gate electrodes are interconnected by a resistive track 33 or 34 formed of stannic oxide, tantalum, molybdenum, tungsten, chromium or titanium. Fig. 7, shows how the application of suitable time-variant potentials to the two resistive tracks may be used to switch the transistors of the upper row "on" progressively from the left hand end and the transistors of the lower row "off" progressively from the left hand end, the potentials being phased so that only one pair of transistors are "on" at the same time, the position of this condition also sweeping left to right. Two such structures electrically orthogonal may be used to energize selectively a matrix of devices. Uses suggested are in computing, facsimile and television work, and in indicators and displays. In the arrangement shown the resistive strips are uniform and the potential sweep must follow a quadratic curve to provide a uniform rate of turn-on (or turn-off), of successive devices. If a linear sawtooth is to be used the thickness or widths of the resistive layer may be varied along its length or the relative spacing of the transistors may be altered along a row. JUGFETs and TFTs are suggested as alternative voltage-controlled elements. Depletion-mode devices may be employed if a D.C. standing bias is applied to the gate line.
Patent GB-1173898-A (GB)
Title: Fastener with Deformable Locking Collar
Inventor: WAGNER KENNETH LEROY
IPC: F16B19/10
Filed: 1966-12-19
Abstract: 1,173,898. Fasteners. HI-SHEAR CORP. 19 Dec., 1966, No. 56694/66. Heading F2H. Fastener comprising a headed pin 10 and a headed sleeve 25 whose internal diameter corresponds to the diameter of a reduced diameter portion 18 of the pin's shank, and whose external diameter corresponds in diameter to the portion 11 of the shank, the sleeve having a length corresponding to that of the shank portion 18 and a grooved end 15, a face 19 for abutting a shoulder 27 on the shank, and an outwardly tapered face 35 against which a tubular collar 40 can be pressed and thence deflected against a tapered shoulder 16 defining one side of a groove 17, to prevent separation of the pin and sleeve. The pin can be hollow. The collar may be made of Monel metal (Registered Trade Mark), and the pin and sleeve may be made of stainless steel.
Patent GB-1319507-A (GB)
Title: Apparatus for measuring the damping coefficient of an oscillatory system
IPC: G01R27/26
Filed: 1970-12-01
Abstract: 1319507 Measuring damping constant POLSKA AKADEMIA NAUK ZAKLAD DOSWIADCZALNY BLIDOWY APARATURY NAUKOWEJ UNIPAN 1 Dec 1970 [1 Dec 1969] 57070/70 Heading G1U [Also in Division H4] To measure the damping constant α of a second order system 1, where α represents the rate of exponential decay of oscillations when the system is shock-excited and is defined by an equation of the form: the system is repetitively shock-excited at a frequency such as to make the peak value of the oscillations a constant multiple of their average value. It is shown that the frequency of excitation is then directly proportional to α and is independant of the magnitude of the excitation. Electrical signals from the system 1, obtained directly if it is a tuned circuit or by a transducer otherwise, are amplified (2), rectified (3) and applied to peak and average value detectors 4, 5. The difference of the detector outputs is determined (6), and an amplifier 7 automatically varies the signal supplied to a voltage to pulse-frequency converter 8, responsible for driving the exciter 14 for the system 1, to bring this difference to zero. The converter 8 drives the excitor 14 via a pulse shaper 10 and a coincidence circuit 13 which suppresses alternate pulses. The converter also triggers, a fixed time (11) after each of its output pulses, a bi-stable 12 which, after each excitation of the system 1, renders amplifier 2 operative for a measurement period terminated by the next pulses from the converter 8. The excitation frequency is determined by integrating (15) the bistable 12 output.
Patent GB-1172100-A (GB)
Title: Improvements in or relating to Resonant Circuits
IPC: H03J5/24
Filed: 1966-12-21
Abstract: 1,172,100. Resonant circuits for tuning arrangements. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 Dec., 1966 [28 Dec., 1965], No. 57112/66. Heading H3Q. In a resonant circuit for a high-frequency tuning arrangement including an inductor 2 and capacitance diodes 3, 4 connected one to each end of the inductor switching means is arranged so that one of the diodes can either be rendered conducting to earth, one end of the inductor for operation in one waveband or can be made non-conducting for operation in another waveband. As shown, the switches 11, 12 and 13 of the tuner, e.g. for a television receiver, are in the Band I position. Capacitance diode 4 is biased on and diode 3 is reverse biased to act as a variable tuning capacitor controlled by the voltage from the slider 10. When the switches are changed over to the other position for Band III reception diode 3 is provided with a fixed reverse bias from source U B  so as to act as a fixed capacitor whereas diode 4 which is also reverse biased provides a variable tuning capacitor controlled by the tapping voltage at 10. The potential applied to diode 3 may be from a slider of a further potentiometer shown dotted so as to enable additional adjustment of the tuning of diode 3. The tuner includes a transistor oscillator 1 and Zener diodes 7, 14.
Patent GB-1430245-A (GB)
Title: Bulbholders
IPC: H01R33/46
Filed: 1972-12-12
Abstract: 1430245 Lampholder LUCAS ELECTRICAL CO Ltd 29 Nov 1973 [12 Dec 1972] 57180/72 Heading H2E A bayonet type bulbholder comprises a tubular body 2 open at both ends and tapering towards the end through which the bulb is inserted, and a compression spring 13 retained in the body by an extension 14 of the spring. The body may be die-cast, and the centre contact 12 for the bulb 8 is insulated from the spring 13.  The extension 14 may have a hooked end 15 or it may be riveted at 18; in the latter instance, the body may be insulating.
Patent GB-1155280-A (GB)
Title: Selective Reduction of Steroidal Dienones
IPC: C07J71/00
Filed: 1966-12-21
Abstract: 1,155,280. 16α,17α,21 - Trihydroxy - pregn-4- en-3-one derivatives. MERCK & CO. Inc. 21 Dec., 1966 [28 Dec., 1965], No. 57247/66. Heading C2U. Compounds of formula wherein R is hydrogen or tetrahydropyranyl, X is hydrogen or fluorine, Y is hydrogen fluorine or methyl, Z is methylene, #-hydroxy-methylene or carbonyl, X being hydrogen when Z is methylene, and each of P and Q is hydrogen, alkyl or aryl, or together with the intervening carbon atom P and Q form a cycloalkyl group, are prepared by reducing the corresponding 1,4-dienes (wherein R is tetrahydropyranyl) by adding a solution thereof in an organic solvent to liquid ammonia and adding lithium portionwise to the liquid ammonia-steroid solution, the reaction being terminated by the addition of a reduction-potential quenching agent (e.g. ammonium chloride), to yield a 21-tetrahydropyranyloxy steroid of the above formula which may, if required, be hydrolysed to a 21-hydroxy product. The starting 21-tetrahydropyranyloxy-1,4- dienes are obtainable by the action of dihydropyran on the corresponding 21-hydroxy compounds.
Patent GB-1350410-A (GB)
Title: Electrophoretic deposition
IPC: H01J9/22
Filed: 1971-12-09
Abstract: 1350410 Electro-phoretic coating of colour television display screens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Dec 1971 [12 Dec 1970] 57282/71 Heading C7B [Also in Division H1] A layer of carbon or manganese dioxide is electro-phoretically deposited on an aluminized phosphor screen 1 of a colour television display tube using as electrolyte a suspension 11 of carbon or manganese dioxide in a non-conductive hydrocarbon liquid, and using a colour television display tube shadow mask 9 as counter-electrode, and the potential difference between the tube and the mask is maintained whilst the suspension is separated from the deposited coating, e.g. as shown, the support 2 is rotated about hinge 4 to empty the suspension from the screen.