baber/WOPTO huggingface dataset:
Patent GB-613102-A (GB)
Title: Improvements in or relating to recording apparatus
IPC: G01D15/28
Filed: 1946-10-01
Abstract: 613,102. Recording-apparatus. REASON, R. E., and KAPELLA, Ltd. Oct. 1, 1946, No. 15065/48. Divided out of 612,619. [Class 106 (iv)] Polar co-ordinate recording-apparatus comprises a flexible disc and means whereby the disc, where it co-operates with the pen, is bent or dished in an arc substantially coaxial with the main axis of oscillation of the pen. The axis of oscillation X of a pen arm F is displaced to one side of a vertical axis Z-Z about which a flexible disc G is driven by an electric motor G<1> and is caused, by an annular guide G<3>, to lie horizontal on one side of the axis Z-Z and to curve about the axis X where it lies beneath the pen F. Means for mounting the pen and supplying ink thereto and methods of preventing damage to the pen when changing the record surface or when it is moved in a reverse direction are described substantially as in Specification 612,619.
Patent GB-1382485-A (GB)
Title: Process for hardening resins
IPC: C08F2/54
Filed: 1972-03-30
Abstract: 1382485 Irradiation of unsaturated polyester resins REICHHOLD-ALBERT CHEMIE AG 30 March 1972 [1 April 1971] 15158/72 Heading C3P A resin obtained by reacting an epoxy resin containing at least two epoxy groups per molecule with an olefinically unsaturated monocarboxylic acid and a polycarboxylic acid anhydride, wherein at least part of the anhydride is attached to at least two molecules of the epoxy resin, is hardened by irradiation with an electron beam in the presence of a copolymerizable unsaturated monomer. To prepare the resin the epoxy resin is-first reacted with less than an equivalent amount of the monocarboxylic acid and the hydroxy groups thus formed and some or all of the remaining epoxy groups are esterified with the anhydride. In examples, the resin is prepared from (a) diphenylolpropane/epichlorhydrin resin reacted with acrylic acid and phthalic anhydride in the presence of N,N-dimethylaniline as catalyst and hydroquinone as inhibitor; (b) a cresol-novolak /epichlorhydrin resin reacted with acrylic acid and phthalic anhydride as in (a); and (c) diphenylolpropane/epichlorhydrin resin is reacted with acrylic acid and trimellitic anhydride in the presence of diisobutylamine and hydroquinone. These resins are irradiated as solutions in (a) ethyl acrylate, (b) methyl methacrylate and (c) triethylene glycol methacrylate and powdered chalk as filler.
Patent GB-738697-A (GB)
Title: Improvements in and relating to tractor-trailer vehicles
Inventor: WATTS LAURENCE DEREK
IPC: B62D53/12
Filed: 1952-03-20
Abstract: 738,697. Fifth-wheel couplings. SCAMMELL LORRIES, Ltd. June 1, 1953 [March 20, 1952], No. 15161/53. Divided out of 738,651. Drawings to Specification. Class 103 (5). A trailer unit is provided with flangeless rollers for engaging the upper surface of loading ramps on the tractor and to prevent sidewise movement further vertically-disposed rollers are provided to engage the sides of the ramps. Specification 700,418, [Group XXX], is referred to.
Patent GB-144318-A (GB)
Title: Improvements in or relating to x-ray plant
IPC: H05G1/14
Filed: 1920-06-04
Abstract: 144,318. H³bers, G. March 27, 1916, [Convention date]. R÷ntgen-ray tubes. - An earthed tube is used in conjunction with a transformer the secondary coil of which is earthed at or near one end, the insulation resistance of the winding increasing with the distance from the earthed point. One terminal of the tube can be earthed directly, or through the stand on which it is supported, as shown in Fig. 1. The high - tension conductor to the other terminal is introduced as far as possible from all other parts and the preferable shape of the tube is that shown in Fig. 1. In the modification shown in Fig. 3, the tube is connected to an induction coil which gives an effective tension of say 100,000 volts in such a manner that the electrode nearest the patient has a tension of only, say 15,000 volts, whilst the other distant-electrode has a tension of 85,000 volts. The high-tension conductor n is insulated and the insulation is surrounded by a conductor which is earthed. The insulated cover q of the conductor n is surrounded by a conductor r connected by a lead s to a point of the secondary winding at, say 45,000 volts. This conductor r is insulated by a cover t, which is surrounded by a conductor u connected by the lead v to the earth potential point of the secondary coil and also to the casing for the tube.
Patent GB-942668-A (GB)
Title: Improvements in or relating to hammers
IPC: B25D11/12
Filed: 1960-05-02
Abstract: 942,668. Percussive tools. ROBERT BOSCH G.m.b.H. May 2, 1960 [April 30, 1959], No. 15283/60. Heading B4C. A motor-driven percussive tool comprises a casing, a hollow cylinder closed at one end slidable in the casing, a piston slidable in the cylinder, the cylinder or the piston being formed as an impact body the other being connected to a motor by a crank and connecting rod, an intermediate space between the front of the piston and the closed end of the cylinder acting as an air cushion by which the movement of the driven part is transmitted to the impact body, and a valve between the air cushion and the atmosphere which is closed when excess pressure is present in the intermediate space and opened when there is a partial vacuum in the space.
Patent GB-944242-A (GB)
Title: Process for the production of flocculation resistant copper phthalocyanines
Inventor: GEIGER GEORG
IPC: C09B67/00
Filed: 1960-05-02
Abstract: Finely divided phthalocyanine mixtures are made by admixing a finely divided iron phthalocyanine or the finely divided reaction product of a halogenomethylated copper phthalocyanine which may contain halogen atoms linked to the nucleus and a tertiary organic amine, with finely divided copper phthalocyanine which may be halogenated.  The copper phthalocyanine may be mixed with the iron phthalocyanine by simple mixing, by grinding together or by precipitation from sulphuric acid solution, or with the halomethyl reaction product by mixing in aqueous suspension.  The copper phthalocyanine may also be mixed with the halomethyl copper phthalocyanine and the mixture reacted with the amine.  Examples are given.  The mixtures colour nitrocellulose lacquers.
Patent GB-1123999-A (GB)
Title: Fuel injection nozzle
Inventor: HILBORN STUART GARFIELD
IPC: F02M69/04
Filed: 1967-04-04
Abstract: 1,123,999. Fuel injection nozzle. S. G. HILBORN. April 4, 1967 [June 27, 1966], No. 15440/67. Heading F1B. A fuel injection nozzle comprises a fuel inlet passageway 61 opening into a chamber 51 and arranged to aim a stream of fuel across a gap directly into the opening 69 of an outlet passageway 67 which in use injects fuel and air into an engine manifold, the chamber having at least one air inlet port 53 through which air is drawn in use by the fuel stream. The nozzle may enter an intake manifold downstream of a throttle valve and have its inlet ports connected to the inlet manifold upstream of the throttle valve.
Patent GB-688930-A (GB)
Title: Improvements in and connected with healds for looms
IPC: D03C9/06
Filed: 1950-06-21
Abstract: 688,930. Making looms. SOC. ANON. FABBRICHE FORMENTI. June 21, 1950 [April 29, 1950], No. 15476/50. Class 83 (ii). [Also in Group IX] The transverse element of the frame of a heald shaft comprises at least two metal plates preformed to the cross-section desired, which includes flat parts, for connecting the plates together, and spaced edge parts including at least one edge at right-angles to form guides whereby the heald shafts are supported and the heald support bars are anchored. The component plates A, B may be stamped, drawn or rolled, the flat parts 2 being welded together. In modifications the box part 6 may be divided into two or omitted. The edges, instead of being inturned as at 4 may be turned out as at 8, Fig. 5, and the box part may be rectangular or circular in section as at 10. Other forms of end guide are shown and in one case these are formed from a separate intermediate plate C, Fig. 8. Specification 652,569, [Group X], is referred to.
Patent GB-597813-A (GB)
Title: Process of preparing an explosive
Filed: 1944-08-14
Abstract: Cyclonite (1 : 3 : 5-trinitrohexahydro-s-triazine) is manufactured by dissolving hexamethylenetetramine in a substantially anhydrous liquid fatty acid, dissolving ammonium nitrate in concentrated nitric acid, and successively bringing together portions of the two solutions and a liquid fatty acid anhydride at a temperature of 50-90 DEG  C.  The quantities of nitric acid, ammonium nitrate and fatty acid anhydride should be at least, and preferably more than 4, 2 and 6 molecular proportions respectively to one of hexamethylenetetramine.  The solution of ammonium nitrate in nitric acid is preferably allowed to stand until the slight evolution of gas which occurs has ceased. Both solutions may be stored (above 28 DEG  C.) until required for use, and may then, if desired, be prewarmed to the reaction temperature before being introduced into the reaction vessel.  In an example, prewarmed solutions of 0.48 mol. ammonium nitrate in 1.11 mols. 97 per cent nitric acid and of 0.24 mol. hexamethylenetetramine in 160 c.c. glacial acetic acid are introduced in alternate small portions into 1.7 mols. acetic anhydride at about 60-80 DEG  C., the reaction mixture is stirred pat about 60-65 DEG  C., diluted with warm water, allowed to stand at 2 DEG  C., and the cyclonite is separated by filtration and purified by dissolving it in boiling 50-70 per cent nitric acid, boiling the solution until the evolution of brown fumes ceases and then diluting with water. Specification 595,354 is referred to.
Patent GB-256743-A (GB)
Title: Improvements in aeroplanes having folding wings
IPC: B64C3/56
Filed: 1925-06-15
Abstract: 256,743. Saunders, S. E. June 15, 1925. Planes, arrangement and construction of. -The wings of an aeorplane are hinged about a common axis so that they can fold towards each other into line with the fuselage, provision being made for moving the wings out of their common level, as they fold, into positions one above the other. In the case of a biplane, the upper wings fold above and the lower wings below the fuselage, the interplane struts being hinged to one plane of each pair. The two lower wings b, c of a biplane are secured to rings e, f surrounding a turret d secured to the fuselage, the engaging edges g, h of the rings being inclined to ensure that the wing 'b is raised out of the plane of the wing c as the wings are folded. The upper edge of the ring e and the lower edge of a sleeve w surrounding the turret dare curved as shown at e<1> so as to engage one another in both the upper and lower positions of :the ring e. Toothed quadrants k, v engaged by pinions l, u are provided on the rings f, e, the quadrant v being curved to permit therising movement of the ring e. The pinions l, u are turned by chain gearing from a hand-wheel n. Spring-pressed locking-bolts x in the turret d, operated by Bowden cables from a lever z, lock the rings e, f in their two positions. According to the Provisional Specification, the wings .may be of metal or of sewn plywood such as that known under the Trade Mark " Consuta.''
Patent GB-1206966-A (GB)
Title: Optical system
IPC: G03G15/30
Filed: 1967-10-06
Abstract: 1,206,966. Optical projection systems in copying machines. RANK XEROX Ltd. Oct.6, 1967 [Oct. 13, 1966], No.15701/70. Divided out of 1,206,964. Heading G2H. An optical projection system, especially for a xerographic copying machine, has a transparent platen 90 on which a document to be copied is placed, the platen being adjustable by leveling jacks 254 having ball mountings Fig.4 (not shown) to permit individual adjustment. A lens 54 Fig. 3 mounted in a barrel 172 is focused by means of a housing 270 slidable in a housing 272 by operation of an eccentric 278. Universal adjustment of lens 54 with respect to axis 290 is provided by a collar 282 having a convex arcuate surface 284 engaging a similarly curved surface in a bush 286, a lock mat 288 engaging a ring 272 on barrel 172 locks the barrel in adjusted position.
Patent GB-1378291-A (GB)
Title: Smoke detection system
IPC: G08B17/11
Filed: 1972-07-19
Abstract: 1378291 Smoke detectors TROLEX AGENCIES Ltd 19 July 1972 [19 July 1971] 15713/71 Heading G1N [Also in Division G4] In a smoke detection system, a smoke detector unit 16 is powered by an oscillator 10 via a Bridge network (not shown) such that when smoke contacts the detector unit the bridge becomes unbalanced and the oscillator ceases to oscillate. As shown, the detector unit 16 is connected via the bridge to a secondary winding 14 of a transformer 12 of the oscillator, smoke causing the detector unit to unbalance the bridge and short-circuit the output of the oscillator and cause it to cease oscillating. As the detector is now no longer powered by the oscillator, the oscillator starts up again to power the detector. If smoke is still present, oscillation stops again, and the frequency of operation gives a measure of the amount of smoke. Transmission to a remote station may be provided. In an alternative, the detector 16 is connected via the bridge to the output of a D.C.-D.C. converter connected itself to the terminals 2, 5 at the output of the oscillator. A second output of the converter provides a bias at the base of a transistor TR 1  in the oscillator. Intermittent operation is again provided when smoke contacts the detector unit. The detector unit may be of the type having a radio-active source in a divided chamber, a plate being provided in each chamber and connected to a bridge circuit. The detector can be mounted at the end of a tube having a conical extension provided with air gaps. A cone shaped member may be mounted coaxially of the tube and may be movable axially to control the flow of air to the detector.  A reed switch may be connected across the input leads to contacts A', C' of the detector, and a magnet may be mounted within the detector so that if the detector is removed, the leads are permanently short circuited indicating a fault.
Patent GB-1433371-A (GB)
Title: Titanium-base alloy and method of improving its creep properties
IPC: C22C14/00
Filed: 1973-04-02
Abstract: 1433371 Titanium alloys UNITED STATES STEEL CORP and NATIONAL DISTILLERS & CHEMICAL CORP 2 April 1973 [5 April 1972] 15735/73 Heading C7A Alloy compositions with improved creep strength without deterioration in notch toughness comprise, by weight:- the balance being titanium and impurities wherein the silicon content is adjusted to a value of 0À04 to less than 0À10% including any residual amounts.
Patent GB-653462-A (GB)
Title: Improvements in or relating to railway bogies
IPC: B60B37/00
Filed: 1948-06-11
Abstract: 653,462. Railway vehicle undercarriages. HUTCHINSON, E. June 11, 1948, No. 15741. [Class 103(vi)] The axle bearing blocks 4 of a railway vehicle are slidably mounted for longitudinal movement relatively to the vehicle frame B, against resilient means 6 for constraining the axles 5 to remain in a normal transverse position relatively to the rails and are.provided on their upper faces with rollers or balls 7 spaced apart to ensure free rolling. The bearing blocks 4 are carried in frames 2 mounted, by springs 3, on the underframe B. The axle 5 is divided centrally (Fig. 1, not shown), to allow relative rotation of the wheels the portions being maintained in alignment by flanges cooperating with a complementary grooved sleeve. It is stated that the arrangement reduces the hammering of the wheel flanges against the rails induced by side winds.
Patent GB-1270103-A (GB)
Title: Improvements in and relating to printing apparatus and methods
Inventor: FORSTER CHARLES FRANCIS
IPC: G06K1/12
Filed: 1968-04-02
Abstract: 1,270,103. Uses of luminescence.- POST OFFICE. 2 April, 1969 [2 April, 1968], No. 15770/68. Heading C4S. [Also in Division B6] A tape for use as ink ribbon in printing apparatus (see Division B6) comprises a woven base impregnated with a suspension of a powder, which may be phosphorescent or fluorescent, in a medium comprising constituents selected from the group comprising natural and synthetic waxes, resins, polymers and plasticizing agents, the properties of the medium being such that it is solid and has a surface with poor adhesive properties at normal atmospheric temperatures, and is fluid and tacky within the range of from 60-90‹ C. In an example, an amino-resin phosphor made in accordance with a method described in Specification 870,504 by reacting cyanuric acid with paraformaldehyde in the presence of about 1% carbazole-3-sulphonic acid as activator, is powdered to a particle size of about 3 Á, and suspended in a solution of shellac in alcohol in the proportions 5 g. phosphor, 20 g. shellac, 75 g. alcohol. Cotton ribbon is passed through a bath containing the suspension, solvent being removed by hot air after each pass of the tape. In a second example the tape is passed through a bath containing a melt comprising 25% by weight of the above amino-resin phosphor, 12¢% of polystyrene resin and 62¢% diphenyl at 90‹ C. This mixture may be diluted with toluene and the former method of impregnation employed. Code marking applications are instanced as applied to postal items e.g. letters and parcels, and tins, packets, cartons, tickets or cheques.
Patent GB-679919-A (GB)
Title: Improvements in or relating to sealing devices for relatively moving members
IPC: F16J15/46
Filed: 1949-06-14
Abstract: 679,919. Stuffing-boxes. RICHARDSON, E. E., and CATLEY, E. May 18, 1950 [June 14, 1949], No. 15786/49. Class 122(v) A sealing device comprises two flexible U-section sealing rings D, D<SP>1</SP> each supported with their open ends facing each other by a segmentally formed ring A, A<SP>1</SP> so constructed that the segments may move relatively to one another to vary the internal diameter of the ring, a flexible insert ring F fitting inside the sealing rings and sealing against the inside of the lips thereof, means to admit fluid pressure to the space between the sealing rings to urge them into contact with the moving member to be sealed and press them against their associated supporting segmental rings A, A<SP>1</SP> whose segments are thereby moved so that they closely surround the moving member. The segments of the rings A, A' are tongued-and-grooved to adjacent segments and are freely supported in recesses H in sleeves C,. C<SP>1</SP> that fit in the packing chamber and also support the outer sides of the flexible sealing rings D, D' which are held apart by spacer rings E, E<SP>1</SP>. Lubricant under pressure is supplied to the space between the sealing rings D, D' through a bore R in the packing chamber housing and grooves O and K in the sleeves C, C<SP>1</SP> and spacer rings E, E<SP>1</SP> respectively. Relief grooves Q are formed in the packing chamber walls adjacent the segmentally formed rings A, A<SP>1</SP>. The two flexible sealing rings D, D' may be replaced by a single ring having a continuous inside lip, the insert ring F then being omitted.
Patent GB-766343-A (GB)
Title: Improvements in or relating to electron velocity modulation apparatus
Inventor: CUTTING ALAN BUTLER
IPC: H01J25/12
Filed: 1953-06-10
Abstract: 766,343. Space charge wave tubes. STANDARD TELEPHONES & CABLES, Ltd. June 10, 1953, No. 15936/53. Class 39(1). [Also in Group XL(c)] In a klystron am plifier in which the drift tube is held at a lower DC potentia than the input and output resonators so that velocity jump am plification of the space charge waves can occur the output is amplitude modulated by modulating the drift tube potential (and so varying the velocity jump gain) and the beam is magnetically focussed. The beam is magnetically focussed by pole pieces 10, 11 cooperating with an external magnet, and the working region is one in which the velocity jump gain varies rapidly with drift tube voltage. Preferably pulse modulation is used in which care the velocity jump gain is zero between pulses and substantial for each-pulse. The length of the drift tube is an odd number of quarter plorma wavelengths. Pole piece 9 also functions as an accelerating anode and only part of collector 6 need be formed of ferromagnetic material.
Patent GB-488133-A (GB)
Title: Improvements in or relating to collapsible tubes
IPC: B65D35/12
Filed: 1937-06-09
Abstract: 488,133. Collapsable tubes. GINZLER, F. G., CANDELIN, F. S., and UTILEX, Ltd. June 9, 1937, No. 15953. [Class 66] A collapsable tube composed of flexible organic material such as a cellulose derivative or a synthetic resin product is formed with a substantially hemispherical end apertured to receive a flanged threaded neck portion 2 of synthetic resin, metal &c. secured by a threaded washer 7. The upper surface of the flange 3 is preferably roughened to prevent turning, and the washer is formed with holes or notches 10 to receive a screwdriver. Specifi- .cation 420,873, [Group XV], is referred to.
Patent GB-773085-A (GB)
Title: Improvements relating to impedance measuring devices
Inventor: FIELDEN JOHN ERNEST
IPC: G01R27/02
Filed: 1954-05-31
Abstract: 773,085. Impedance measuring devices. FIELDEN ELECTRONICS, Ltd. March 29, 1955 [May 31, 1954], No. 16026/54. Class 37. In an impedance measuring device oscillations modulated at a low frequency are induced in two rectifier circuits, each including an impedance one of which is to be measured, and the output voltages therefrom are applied to a balancing circuit which, on a change in the unknown impedance, operates a reversible motor coupled to the balancing circuit for adjusting the circuit in a sense tending to reduce the out of balance voltage to zero, the extent of adjustment indicating the value of the unknown impedance. As shown, the rectifier circuits include rectifiers X2, X3, impedance Z1, and an unknown impedance ZV and are supplied with low frequency (e.g. mains) modulated oscillations from an oscillator incorporating an amplitude stabilizer D, L2 as described in Specification 772,253. The demodulated outputs of rectifiers X3, X2 are fed to a slidewire and a slider respectively, and the rectifiers are connected in series opposition to one end S1 of the slidewire so that the distance of the slider from the end S2 of the slidwire represents the difference in the rectifier outputs. Any change in impedance ZV results in a difference voltage which is fed through coils T to an amplifier and a reversible electric motor M, coupled to the slider in such a way as to move the latter to restore balance. By this means, the position of the slider can be calibrated to give a measure of the value of impedance ZV.
Patent GB-615712-A (GB)
Title: Improvements in and relating to fixtures for tubular electric lamps
IPC: F21V17/00
Filed: 1944-08-23
Abstract: 615,712. Lamp chimneys &c. ; lamps &c. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 23, 1944, No. 16062. Convention date, Aug. 23, 1943. [Classes 75 (ii) and 75 (iv)] [Also' in Group XXXVI] A tubular-lamp fixture (see Group XXXVI) consists e.g. of a tube 65 to the ends of which are secured like fabricated parallel, angular channels 66, 67 carrying the starter and lamp sockets 79, 81. The ballast 87 for the lamps may be secured centrally on the tube. A reflector 89 may be mounted on the channels and secured to the tube by the ball and socket chains 90. In a modification, two parallel tubes 135, 136 carry at the ends the like channels 137, 138 and in an intermediate position a similar channel 139. Supporting lugs 166 are provided on the outer channels.