baber/WOPTO huggingface dataset:
Patent GB-778774-A (GB)
Title: Improvements in or relating to apparatus for measuring, indicating or recording the presence or concentration of a combustible gas in an atmosphere
Inventor: WALTON WILLIAM HENRY
IPC: G01N25/28
Filed: 1953-09-14
Abstract: <PICT:0778774/III/1> In an apparatus for detecting or measuring the presence or concentration of a combustible gas or vapour in an atmosphere, both the rate of fuel supply to a flame and the heat production are measured and/or controlled and both these factors are used in obtaining the required indication or measurement.  The fuel producing the flame may be a gas, vapour or liquid.  The flow of butane gas to a flame F in the atmosphere to be tested is regulated by regulators R1, R2 and is measured by a pressure device P.  The temperature near the flame is detected by a thermally sensitive element D which transmits a signal to a device T which may control the regulator R2.  Signals from the device T and from the pressure device P actuate a measuring or indicating device A.  The thermally sensitive element D may control the fuel supply rate so that the temperature remains constant, the fuel supply rate then indicating the concentration of combustible gas in the atmosphere, or means are provided for keeping the fuel supply constant so that the change in temperature indicates the concentration of combustible gas.
Patent GB-600172-A (GB)
Title: Improvements in moving coil pickups for electrical reproductions from disc records
IPC: H04R9/12
Filed: 1945-09-29
Abstract: 600,172. Moving-coil gramophone pick-ups. PYKE, K. E. M. Sept. 29, 1945, No. 25342. [Class 40 (iv)] A moving-coil gramophone pick-up has a vibrating system comprising an armature 3, carrying a coil 7 and pivoted in rubber end caps 13, which serve to provide damping and restoring forces. The coil 7 is wound through two transverse parallel holes so that its plane lies along the axis of the armature 3, the leads 10 from the coil passing through one of the pivoted ends. The armature 3 is also drilled midway between the pivots and at right angles to the plane of the coil, in order to accommodate the stylus 4, which may be a push fit. A magnetic field is produced across the armature 3 by polepieces 2 and a magnet mounted on a back-plate 5 carrying terminals (i, to which the leads 10 from the coil 7 are connected. In the construction shown in Fig. 13, the armature 3 is mounted in a brass sleeve 15 which is slotted and soldered to the polepieces 2 as shown in Fig. 12.
Patent GB-1101217-A (GB)
Title: Improvements in or relating to controlling the tension of an elongated record carrierof a magnetic recording and/or play-back apparatus
IPC: G11B15/43
Filed: 1966-06-07
Abstract: 1,101,217. Feeding record tapes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 7 June, 1966 [10 June, 1965], No. 25344/66. Heading G5R. Tape tension is controlled in response to a control signal derived from the value of the current taken by an electric motor driving a shaft which drives the tape. As described, the control signal comprises the voltage developed across a resistor (12, Fig. 2, not shown) connected in series with the motor (10) and is applied to a differential amplifier (13) connected in series with a monostable trigger circuit (14) which is arranged to fire periodically a thyristor (17) forming part of a current supply path to a motor (19) which supplies braking torque to the tape supply reel through a slipping clutch.
Patent GB-315140-A (GB)
Title: Improvements in and relating to loud speakers
IPC: H04R11/00
Filed: 1928-09-04
Abstract: 315,140. Ideal Werke Akt.-Ges. f³r Drahtlose Telephonie. Sept. 4, 1928. Addition to 309,067. Magnetic instruments. - The device for supporting an oscillating armature a, described ir. the parent Specification and comprising a spring b fixed to a casting c which is cut away at points k so that the central portion of the casting can be rotated by a screw h to adjust the position of the armature, is modified in that instead of cutting away the parts k, these parts are formed of phosphor bronze, brass, or other elastic metal, pieces of which are inserted in the mould prior to the casting of the part c.
Patent GB-722165-A (GB)
Title: Improvements in or relating to tubular electric discharge lamps
IPC: H01J61/54
Filed: 1952-10-10
Abstract: 722,165. Discharge lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 10, 1952 [Oct. 13, 1951; Oct. 23, 1951], No. 25431/52. Class 39 (1). A tubular discharge lamp, which may be fluorescent, comprising two activated main electrodes 3, and at least one auxiliary electrode 10, 11 of resistance material arranged on the inner wall of the discharge tube 1 and connected to one of the main electrodes and extending over at least one third of the length of the discharge tube, is characterized in that the discharge. tube 1 is formed in the shape of a ring, and that the or each auxiliary electrode 10, 11 is coincident with or spaced from the smallest internal ring circumference of the discharge tube by a distance which is not more than #, preferably not more than 1/15 of the internal tube circumference. The auxiliary electrodes 10 and 11 are strips of about 3 mms. width made of a mixture of graphite and glazing with a resistance of about 20 ohms per cm. In the construction shown in Figs. 1 and 2, the auxiliary electrode 11 is connected to the main electrode 4 by a metal strip 15 and a short metal wire 16 and ends adjacent the other main electrode 3. The auxiliary electrode 10, Fig. 1, is similarly connected to the main electrode 3. The internal tube diameter is about 30 mms. and the diameter of the central line 12 of the ring is about 37 cms. The tube has a filling of mercury and argon at a pressure of about 3 mms. The electrodes 3, 4 are connected to supply terminals 7, 8 through a stabilizing resistor 9, e.g. an incandescent lamp. In the case of AC supply the resistor 9 may be replaced by an inductor, a capacitor, combinations thereof or other impedances having a positive current voltage characteristic curve. The tube 1 is made from a straight tube on the inner wall of which the fluorescent layer 2 and the auxiliary electrodes 10 and 11 have already been arranged, the straight tube being bent in the plastic condition around a central templet, discontinuities in the material of the auxiliary electrodes being obviated by the spacing of the auxiliary electrodes from the smallest internal ring circumference of the tube being not more than # of the internal tube circumference. In the construction shown in Figs. 3 and 5 the auxiliary electrode 15 is connected to the main electrode 14 by a ferro-chromium strip 16 and a helically wound tungsten wire or spring 17. The axis of the helix 17 and the electrode 14 are perpendicular to the plane of the central line of the auxiliary electrode 15. The helical tungsten wire 17 has a wire diameter of about 250 microns, a helix diameter of about 4 mms., and about 3 turns. The internal tube diameter is about 30 mms and the largest ring diameter of the tube about 40 cms. The pinches 12 of the tube are perpendicular to each other. At least one of the leading-in wires 13 for each electrode 14 is connected' by series impedance 18, e.g. an incandescent lamp, to a terminal of the supply source.
Patent GB-322490-A (GB)
Title: Improvements in and relating to dough feeding and folding mechanism
IPC: A21C3/00
Filed: 1928-09-05
Abstract: 322,490. Green, T. L. Sept. 5, 1928. Driving-gear for endless-belt conveyers. - In mechanism for feeding and folding dough, the dough sheet is fed by a web 13, Fig. 2, having a delivery loop passing around a roller 19 which is reciprocated across a transverse receiving-web, so as to deposit the dough thereon in a series of folds. The web 13 passes around a driving-drum 12 to a contact-breaking edge 14, then over rollers 14<a>, 15 and 18<a> to the reciprocatory roller 19 after which it passes over a stationary roller 21, reciprocatory compensating roller 22 and roller 24 back to the drum 12. A crank 5 on a main shaft 2 advances the drum 12 through a link 6, pawl 10 and ratchet 11, and reciprocates the rollers 19, 22 in opposite directions through an arm 8, sector 26 and racks 20, 23 carrying the rollers and interconnected by gears 25, the arrangement being such that on the forward movement the web 13 advances twice as much as the roller 19.
Patent GB-1064384-A (GB)
Title: Process for the preparation of pure formaldehyde
IPC: C07C45/60
Filed: 1964-06-19
Abstract: Formaldehyde of high purity is prepared by heating trioxane at normal pressure to a temperature from 350 DEG  to 500 DEG  C.
Patent GB-430067-A (GB)
Title: Improvements relating to envelopes, wrappers, paper bags and the like
IPC: B65D27/30
Filed: 1934-09-05
Abstract: 430,067. Envelopes, paper bags, &c. LINDGREN, A. G. S., 14, Rosenlundsgatan, Gothenburg, Sweden. Sept. 5, 1934, No. 25533. [Class 146 (ii)] [See also Group XVII] In an envelope, wrapper, paper bag, or the like which is provided with sealing means in the form of dried coatings of caoutchouc or the like having the property of sticking only to one another, and which are disposed to be superimposed when the envelope &c. is folded for sealing, the adhesive coatings are applied in interrupted strips or spaced spots, instead of continuous strips, the purpose being to detect or prevent tampering, since all the spots of adhesive must be separately removed on opening. The envelope shown has two interrupted strips or rows of spots 1 of adhesive on both the closure flap and the back. Where the spots in the top row on the flap extend to the top edge, and so are liable to come into contact with the spots at the edge of the flap of an adjacent envelope in a pile, the spots at the edge of one flap are staggered relative to the corresponding spots on the flap of the adjacent envelope in the pile.
Patent GB-471013-A (GB)
Title: Improved holder for displaying articles
IPC: G09F1/14
Filed: 1936-09-21
Abstract: 471,013. Stands. HANSSON, G. H. Sept. 21, 1936, No. 25597. [Class 52 (v)] A holder for objects exposed for show comprises a single piece of wire bent to form a pair of grip members 1, 4, 5, Fig. 2, joined by wire loops 2, 3 forming the base of the holder and by virtue of their flexibility causing an object inserted between the grip members 1. 4, 5 to be securely held thereby. In an alternative arrangement grip members 11, 12, Fig. 5, are formed as shown at the ends of a single basal loop 8.
Patent GB-1337360-A (GB)
Title: Extreme pressure lubricating composition
IPC: B01J37/00
Filed: 1972-06-01
Abstract: 1337360 Extreme pressure lubricants CHEVRON RESEARCH CO 1 June 1972 [1 June 1971] 25699/72 Heading C5F Lubricants comprise an oil, 1-60 wt. per cent of amorphous sodium borate having a particle size of less than 1 Á and 0À5-4 waters of hydration and a dispersant mixture consisting of 40-99À9 wt. per cent of a Group II metal and sulphur containing anionic lipophilic surface-active agent (many examples given, mostly of sulphonates) and 60-0À1 wt. per cent of a lipophilic nonionic surface-active agent (e.g. alkenyl succinimides and pentaerythritol derivatives). Conventional additives may also be present.
Patent GB-761191-A (GB)
Title: Improvements in or relating to floating candles
IPC: C11C5/00
Filed: 1954-08-30
Abstract: <PICT:0761191/III/1> A candle of the floating type is built up from two or more parts made of the same material as the candle itself, the lower or lowest of the parts being hollow and serving as a float. The finished candle may have a pleasing appearance such as that of a water lily.  In the form shown, which appears like a water lily, the candle comprises three parts, a lower, hollow, floating part 1, an intermediate part 2, and a candle part 3 provided with a wick 4.  The parts 1 and 2 are given the form of petals and the part 3 the form of a flower bud.  The parts may be coloured.  The parts may be assemblied in various ways, the method shown comprising a spigot connection wherein the candle part 3 is provided with a central peg 6 corresponding to a hole 8 in the lower part 1.  A flange 9 around the hole 8 fits into a central aperture 7 of the intermediate part 2. The assembled parts may be permanently secured by fusion.  The candle part 3 may be provided with a groove 5 to collect the candle drippings.
Patent GB-331739-A (GB)
Title: Improvements in and relating to screw tapping machines and combined drilling and screw tapping machines
IPC: B23B47/18
Filed: 1929-08-23
Abstract: 331,739. Cincinnati Bickford Tool Co., and Klausmeyer, D. C. Aug. 23, 1929. Drilling.machines; tapping.- The spindle of a combined drilling and tapping machine is adapted to be fed during drilling by gearing driven from the spindle, or by a readily removable feed screw and nut during tapping, the screw and :nut being situated approximately at the middle of the spindle and being divided to permit ready removal in a lateral direction. The machine comprises a pillar 1 carrying a gear-box 2 for the spindle, driving-gear which is connected to a motor M, and a feeding head 4 which is vertically adjustable on the pillar by means of screws 10 and sets of tapped holes a - - c in the pillar- For drilling, the spindle Sis fed by a rack 6 and pinion 7 which may be rotated by a hand wheel 9 or by bearing x, shaft 23 and either of the gear trains 21, 22 or 24, 25. Fig. 2, from a pinion 20 on the spindle. S. The double gear 22, 24 is moved axially to feed the drill at one of two speeds by a hand lever 27, Fig 1, or the gear may be made to occupy an intermediate disengaged position during tapping. For a tapping feed a two-part nut 29, hinged at 30 and clamped together by bolts 31, is secured to the feeding head 4 by screws 28 and engages a screwed sleeve 34, Figs. 2 and 3, having an open side 40 to allow it to be placed laterally on the spindle S. The axial position of the sleeve 34 is determined by collars 36, 37 secured to the spindle by pins 38 engaging any two of a series of slots t in the spindle and the sleeve is rotated by a key 35 on the, spindle. The spindle is rotated from the motor M by gearing 12, 14 and oppositely rotating bevel gears 15, 16, either of which may drive the spindle through clutches 17, 18 controlled by a hand lever 19. The removable lead screw and nut 29, 34 may be used on a machine for tapping only.
Patent GB-1513815-A (GB)
Title: Ink-ribbon feeding device
IPC: B41J33/516
Filed: 1975-06-17
Abstract: 1513815 Ink ribbon mechanism PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES LTD 17 June 1975 [20 June 1974 1 Aug 1974] 25753/75 Heading B6F Ink ribbon spool mounting means comprises a spool receiver 1 which is pivotally mounted between loading and operative positions on a frame 2 and includes a slide 7 having a projection 10 which is engaged by a spool 4 when the spool is inserted into the receiver, the slide also having pins 6, 23 slidable in guide slots 55 in the receiver and a further guide slots 11 in the frame. Insertion of a spool in the receiver displaces the slide to permit the pins 6, 23 to slide in the slots 11 in the frame and therefore to allow downward pivoting of the receiver to engage the spool with a spindle 15. Ink ribbon reversal mechanism (Figs. 1, 4, not shown)-The spools (4, 46) are driven by a motor (29) alternately, through a longitudinally slidable shaft (27). The shaft may be displaced longitudinally by tension in the ribbon (Fig. 1), in which case a helical gear (39 or 42) is axially displaced when the spool being driven is stopped, thus pushing the shaft (27) beyond the centre position of a bi-stable spring (38). Alternatively (Fig. 4), a projection (60) on the ribbon acts on a feeler lever (61) to displace the shaft (27) and reverse the motor.
Patent GB-1475294-A (GB)
Title: Turning apparatus
IPC: B23B5/20
Filed: 1974-05-24
Abstract: 1475294 Machining crank journals NICOL & ANDREW (LONDON) Ltd 24 May 1974 [30 May 1973] 25840/73 Heading B3T Apparatus for machining the peripheral surface of a cylindrical workpiece, such as a crankshaft journal, e.g. in situ comprises a frame 2, 4 mountable on the workpiece and having a support 12 for mounting a cutting tool, the frame is mountable around the cylindrical journal and is supported on the journal surface by rollers 6 carried by end portions 2 of the frame at least one of the rollers being adjustable at an angle to the radius of the journal to permit the apparatus to be mounted on cylindrical surfaces of different diameters. In the embodiment described the frame is formed by two separable end rings 2 connected by tie bars 4, two guides 56 between the frames 2 carry the support 12 for a cutting tool carrier 10, a feed screw 8 extends parallel to the guide bars 56 and through the threaded bore 80 in the tool support 12, and means is provided to rotate the feed screw as the apparatus rotates so as to feed the tool support with the cutting tool across the surface of the journal. The end frames are formed with V grooves to accommodate a driving belt from a motor (not shown).
Patent GB-1142874-A (GB)
Title: Improvements in or relating to vehicle chassis
Inventor: BODEN CLARENCE
IPC: B60G11/10
Filed: 1966-06-10
Abstract: 1,142,874. Vehicle frames. BODEN TRAILERS Ltd. 25 April, 1967 [10 June, 1966], No. 25854/66. Heading B7D. In a vehicle chassis comprising spaced frame members 10 to which are attached suspension mounting brackets 11, a tapering V-section stress dispersion member is secured to the member 10 and bracket 11 at each side of the chassis. The wide end of the member 12 is welded to the bracket 11 and the limbs of the V-section to the frame member 10.
Patent GB-338906-A (GB)
Title: Improvements in, or relating to, sound recording and reproducing apparatus
IPC: H04R11/08
Filed: 1929-08-26
Abstract: 338,906. Hitchcock, S. I. Aug. 26, 1929. Tool-arms and mountings; lamping vibrating members.-The stylusbar of a sound-box is rendered insensitive to extaneous vibrations by the interaction between a permanent magnet and a co-operating armature. As shown, a stylus-bar 10 carries a soft-iron armature 13 which is positioned between the poles 17, 18 of a permanent magnet 19. The magnet is of the horseshoe type and the pole-pieces 17, 18, Fig. 2, are adjustable relatively to the limbs of the magnet. The armature is connected by a link 15 to the diaphragm 1. The latter is in two parts, viz., a fluted outer portion 2 and a conical central portion 3. The stylus-bar 10 has two pivots each supporting a ball race 26, the balls of which co-operate with a larger ball seated in lugs on thecasing of the sound-box. One of the balls may be adjustable axially. Alternatively, the armature 13 may be rigidly secured to the casing, and the magnet may be secured to the stylus-bar. In a modification, the stylus-bar 50, Fig. 8, which is pivoted at 53, carries an armature 51 which co-operates with a permanent horseshoe magnet 52. Alternatively, the magnet 52 may be fixed on the bar 50 around the pivot 53, and the armaturs 51 may be fixed to the casing. Specification 247,901 is referred to.
Patent GB-844461-A (GB)
Title: Improvements in or relating to radio location systems
IPC: G01S13/46
Filed: 1957-08-16
Abstract: 844,461. Radio navigation. GAUDILLERE, P. Aug. 16, 1957 [Aug. 21, 1956], No. 25948/57. Class 40(7). Relates to a radio navigatior system as disclosed in Specification 757,831 comprising four transmitters A, B, C, D located at the corners of a square, synchro nous modulation signals of frequency p being transmitted from A & C and synchronous modulation signals of an adjacent frequency q being transmitted from B & D so that four "isophase" lines are produced which sweep cyclically between A & B, C & D, A & D, and B & C respectively at a recurrence frequency p - q, a first position line being defined by the time interval i 1  between the passage of the first and second isophase lines and a second substantially orthogonal position line being defined by the time interval i 2  between the passage of the third and fourth isophase lines. In such a system errors arise due to variations in the velocity of propagation of radio waves and according to the present invention such errors are corrected by automatically controlling the freqiencyp of the modulation signal transmitted from the station A to maintain constant the value of the time interval i 1  as determined at a monitor station R of known location adjacent to A, the monitor station being similar to the mobile receiver used in the system. As illustrated in Fig. 2 (not shown) the frequency p is controlled at the transmitter A by a circular potentiometer controlled via synchros and a line or radio link by a reversible D.C. motor at the monitor which is controlled by a rotary switch whose arm is positioned in accordance with the measured value of the time interval i 1 .
Patent GB-484275-A (GB)
Title: Method of consolidating, sealing or filling ground, masonry, or the like
IPC: C09K17/12
Filed: 1937-09-24
Abstract: 484,275. Consolidating soils. GUTTMANN, A. Sept. 24, 1937, No. 25962. [Class 68 (i)] A method of sealing or filling ground, masonry, or the like, consists in injecting therein, firstly, a mixture of a soluble carbonate or sulphate, particularly of an alkali metal, with a concentrated water-glass solution, and secondly, a concentrated solution of a soluble salt, particularly a chloride, of an alkaline earth metal or of a metal of the magnesium group, i.e. of magnesium, beryllium, zinc, or cadmium. Examples given are a solution of sodium carbonate followed by a solution of calcium, magnesium, or zinc-chloride ; or sodium sulphate solution followed by barium or calcium-chloride solution. The insoluble carbonate or sulphate formed by interaction is kept in voluminous soft masses by the water-glass solution.
Patent GB-1185323-A (GB)
Title: Improvements in or relating to Electron Emission Control.
Inventor: NIXON WILLIAM CHARLES
IPC: H01J29/84
Filed: 1966-06-13
Abstract: 1,185,323. Electron beam systems. HILGER & WATTS Ltd. 13 June, 1967 [13 June, 1966], No. 26161/66. Heading H1D [Also in Division G3] An electron beam having a restricted range of electron energy levels is produced by directing a beam of electrons from source 2, for example through magnetic field 8, to a first electron filter 12 where electrons having energy below a first predetermined level are reflected back through magnetic field 8 to be deflected to a second electron filter 16 which transmits electrons having energies above a second predetermined level, lower than the first, the transmitted beam thus having electron energies restricted to the range between the two predetermined energy levels. Preferably the magnetic field 8 deflects the electrons through exactly 90 degrees so that the transmitted beam path from filter 16 is coaxial with that of the beam originally emitted from source 2. To ensure that this is so, the path of the higher energy electrons transmitted through the first filter 12, e.g. an electron mixer, may be measured automatically by two spaced collector plates 22 connected to a balance unit 24 which serves to adjust appropriately the current in the coils 26 generating the magnetic field 8 or to adjust the potential of source 2. Alternatively the position of the transmitted beam from mirror 12 may be displayed on a fluorescent screen 20. In apparatus described, Figs. 2 and 3 (not shown), for producing the monochromatic electron beam in which a beam target is placed in a specimen chamber for impact of the electron beam, the two electron mirrors are mounted in conductive holders in an insulating block between an electron gun and the specimen chamber. An extension in the beam direction of the holder for the second mirror may be used to focus the emergent beam. The magnetic deflecting field is provided by two adjustable permanent magnets joined by a yoke, and the leading-in arrangements to, for example, the mirrors and collector plates, are also described.