baber/WOPTO huggingface dataset:
Patent GB-1420012-A (GB)
Title: Arrangement for synchronizing two signals
IPC: H02P29/00
Filed: 1973-01-10
Abstract: 1420012 Automatic control of speed PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Jan 1973 [13 Jan 1972] 1262/73 Heading G3R [Also in Divisions H3-5] Motor speed is controlled so that pulses #o (5c) generated by the optical tachometer 3, 4 are maintained in phase with the reference pulses #i (5a) obtained from oscillator O and divider D, or alternatively obtained from an external source at E. The reference pulse train controls a waveform generator G which provides a sawtooth voltage z (5b) applied to one input of an OR gate. The other input of the OR gate is supplied with a waveform a (5d) consisting of pulses having a duration equal to the spacing between the pulses #o and reference pulses #i. Measuring circuit C consists of a 4- position counter which is increased by each reference pulse #i and decreased by each pulse #o and produces the output a (5d) which changes from +V to -V when the count changes between positions 2 and 3. The output d (5f) is negative when the count is 1 and positive for all other counts. The signal d is applied to an AND gate which takes its other input e (Se) from the OR gate to provide an output f (5g) which effectively consists of the larger of the signals a and z and the smaller of the signals e and d. The signal f is sampled in circuit s at the arrival instant of pulse #o to give a stepped output signal c (5h) which is used to control the motor by changing the energization of the motor or a shaft mounted brake. The arrangement may be used to control the output frequency of a voltage controlled oscillator (see Division H3).
Patent GB-606400-A (GB)
Title: Halogenated polymers and methods of preparing the same
IPC: C08F8/20
Filed: 1946-07-14
Abstract: A normally solid polymeric material obtained from one or more unsaturated hydrocarbon monomers having more than 2 carbon atoms is brominated or chlorinated by dissolving it in liquid bromine or chlorine.  Excess halogen may be afterwards removed by raising the temperature.  Polymeric substances specified are polystyrene, polyvinylnaphthalene, polybutadiene, polybutene, polypropylene, polyindene, polycyclopentadiene, cyclized polyisoprene, and butadiene-styrene copolymers.
Patent GB-877514-A (GB)
Title: Apparatus for curing tyres
IPC: B29D30/54
Filed: 1958-01-14
Abstract: 877,514. Laminates. GOODYEAR TIRE & RUBBER CO. Jan. 14, 1958 [Feb. 15,1957], No. 1285/58. Class 140.. [Also in Groups V, XI and XXXVI] In apparatus for forming an electric heater, comprising insulated undulating wires embedded in rubber (see Group XI), wires 113 sheathed in glass braid are drawn from reels 117-119 by rollers 124, 125 and fed between sheets of tacky raw rubber, 100, 101, provided with plastic-protecting sheets 100<SP>1</SP>, 101<SP>1</SP>, drawn from reels 102, 103 by rollers 98, 99 which also function to press the sheets together to embed the wires. The wires are guided to rollers 124, 125 by eyelets 123 and in advance of the embedding point they pass through holes in a bar 114 which is reciprocated by a bell-crank 149 and eccentric 144 to dispose the wires between the sheets and undulating mutually parallel relationship. The roller 98, eccentric 144 and roller 124 are driven by chain-andsprocket gearing from a motor M and the roller 125 is geared to a counter 131 which indicates the length of wire fed to and embedded in the sheets. The rollers 99 and 124 may be driven frictionally or by means of gearing and the rollers 124, 125 may have annular grooves to prevent lateral drifting of the wires. The rollers of each pair may be relatively adjustable to accommodate different thicknesses of material and the speed of the rollers and rate of reciprocation of bar 114 may be altered, by changing the gears and eccentric 114, in accordance with the length of wire to be embedded in a given sheet length. A clutch may be embodied in the eccentric drive so that the wires may be laid without undulations for short periods between lengths required for the heaters.
Patent GB-561763-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62C11/00
Filed: 1943-01-26
Abstract: 561,763. Fire - estingnishing pumps. WARREN, S. F. Jan. 26, 1943, No. 1296. [Class 102 (i)] In a fire-extinguishing pump in which the operating handle 3 is rigid with a piston-rod spaced away from a removable filling plug 2, the handle and the plug are interconnected by a thin and easily breakable wire, cord, or the.like 9 which is threaded through apertures in, or passed over or around, the handle and the plug and has its ends secured in a lead seal 10 or the like. In the form shown, the wire passes through a hole 7 in the handle, a hole in a concentric projection 8 on the plug, and an aperture 12 in a lug 13 on a nameplate 14 secured to the pump body. In modifications, the projection 8 is elongated or eccentric to the plug 2, and the hole 7 is in one of the upper extremities of the handle.
Patent GB-711078-A (GB)
Title: Improvements in or relating to gyromagnetic compass devices
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G01C19/36
Filed: 1952-01-16
Abstract: 711,078. Gyromagnetic compasses. SMITH & SONS (ENGLAND), Ltd., S. Feb. 11, 1953 [Jan. 16, 1952]. No. 1312/52. Class 97(3) [Also in Group XXXVIII) A gyromagnetic compass includes means to apply to the gyroscope a precessing torque to align the gyroscopic reference with the magnetic reference, this torque having two components, the first being proportional to the misalignment between the references and the second proportional to the integral with respect to time of the misalignment. The constants of proportionality being such that the first component acting alone would give a precessional rate substantially less than 1/30 degree per second per degree of misalignment and the two components acting together give a damped oscillatory response of gyroscopic position to misalignment. In the gyromagnetic compass shown signals from a directional gyroscope 2 and a magnetic element 1 are fed into a device 4, the output of which is proportional to the misalignment between the gyroscopic and magnetic references and is amplified at 5. In circuit with amplifier 5 are coils 6, 7 of which coil 6 co-operates with permanent magnets on gyro 2 to apply thereto the first component of torque to precess it at a rate of about 1/100 degree per sec per degree of misalignment to bring the gyro reference into coincidence with the magnetic reference, while coil 7 co-operates wth movable magnets to indicate the magnitude and direction of the current in coil 6. Amplifier 5 is saturated for misalignments which would give a precession rate for one degree of misalignment of 1/30 deg/sec. and is coupled with a relay 8 having a movable contact 11 and fixed contacts 9, 10. When the relay voltage .is above that at which amplifier 5 is saturated, contact 11 engages contact 10 and the torque applied to the gyro remains constant. But when it is below this value, contact 11 engages contact 9 and the shaft of a motor 12 is rotated at a speed proportional to the misalignment and in one sense or the other according to the sense of the misalignment. Through gear box 14 this motor drives a potentiometer slider 15 so that a voltage is produced across a coil 18 to apply the second component of the torque to gyro 2. Specification 586,506 is referred to.
Patent GB-284070-A (GB)
Title: Improvements in or relating to drinking flasks
IPC: B65D55/16
Filed: 1927-01-17
Abstract: 284,070. Frost, F. H. Jan. 17,1927. Stoppers, means to prevent loss of.-In a drinking flask, the stopper d is attached to the body a of the flask by a swivelling link c, one end of which is pivotally connected to the flask whilst the other end is pivoted to a ring e which encircles the stopper. The ring is sufficiently loose to permit rotation of the stopper and is retained thereon by studs, circumferential flanges &c. Specification 26821/09 is referred to.
Patent GB-755541-A (GB)
Title: Improved process for the manufacture of complex ester synthetic lubricants
Filed: 1954-01-18
Abstract: The acidity of a complex ester is reduced by treating it with an aqueous alkaline solution and breaking the emulsion so formed with an alcohol containing from 2 to 6 carbon atoms and recovering the product of reduced acidity, the recovery of the product being assisted if necessary by the addition of a hydrocarbon solvent.  The complex esters are defined as polyesters in which hypothetical replacement of ether oxygen atoms and/or the ether oxygen atoms of the ester groups by methylene groups would produce a polyketone with three or more carbonyl groups in the same carbonyl chain.  These esters are formed by the interaction of three or more of the following aliphatic compounds in which at least one polyhydric alcohol and one polycarboxylic acid are employed: monohydric alcohols, monobasic acids, dibasic acids, glycols, polyhydric alcohols, polybasic acids and hydroxy acids. Among these polyesters are the following different types: (1) R1COOR2OOCR3 COOR4OOCR5 in which R1 and R5 are alkyl radicals of monobasic acids, R2 and R4 are the hydrocarbon radicals from glycols and R3 is the hydrocarbon radical from a dibasic acid; (II) ROOCR2COOR3OOCR4COOR5 in which R1 and R5 are the combining radicals of an alcohol, R2 and R4 are the hydrocarbon radicals of dibasic acids and R3 is the hydrocarbon radical of a glycol; (III) R1OOCR2COOR3 OOCR4 in which R1 is the combining radical of an alcohol, R2 is the hydrocarbon radical of a dibasic acid, R3 is the hydrocarbon radical of a glycol and R5 the alkyl radical of a monobasic acid; (IV) R1OOCR2COOR3OOCR4COOR5 in which R1 and R5 are the combining radicals of alcohols, R2 and R5 are the hydrocarbon radicals of the dibasic acid and R3 is the hydrocarbon radical of the glycol; and (V) R1COO-R2OOC R3COOR4-OOCR5 in which R1 and R5 ar alkyl radicals of monobasic acids, R2 and R4 are hydrocarbon radicals of glycols and R3 is the hydrocarbon radical of a dibasic acid.  The preferred esters are of the general formula R1OOCR2COOR3OCOR4COOR5 in which R1, R2, R3, R4 and R5 are aliphatic hydrocarbo radicals with R1 and R5 the same or different having from 4 to 8 carbon atoms, R2 and R4 the same or different having from 2 to 6 carbon atoms and R3 having from 3 to 12 carbon atoms.  A particularly preferred ester is obtained from polyethylene glycol, adipic acid and 2-ethyl-hexanol.  Lists of starting materials, including mercapto compounds, which may be used as starting materials for the formation of these esters are given and the esters are obtained by normal esterification processes.  The alkaline washing solution may be aqueous sodium and potassium hydroxides and carbonates. Suitable hydrocarbon solvents which may be used are, for example, heptane, hexane, toluene and xylene.  In the examples a crude ester obtained from polyethylene glycol, sebacic acid and 2-ethylhexanol is treated with isopropyl alcohol sodium carbonate and sodium carbonate solution.
Patent GB-946218-A (GB)
Title: Positioning control apparatus
IPC: G05D3/14
Filed: 1960-01-14
Abstract: 946,218. Automatic position control systems. BAILEY METER CO. Jan. 14, 1960 [Jan. 14, 1959], No. 1440/60. Heading G3R. [Also in Division G1] The position of a valve 34 in a conduit 35 is adjusted in accordance with the difference in pressure across an element 12 in a conduit 14 and the conduit 35 may or may not form part of the conduit 14. A pressure difference across the element 12 is representative of the flow rate in the conduit 14 and is operative to move the core 16 of a transformer 18 whereby an electric signal is supplied to a demodulator 22 which produces a D.C. signal at its output terminals which is recorded on a meter 23 and is also compared with a reference voltage from an element 24, the difference being fed to a controller 26. This error signal is supplied to a magnetic amplifier system 36 by means of which a moving coil element 140 is controlled to move a beam 142 whereby a piston 46 is positioned in accordance with the actuation of a pilot valve 40 by the beam movement. The movement of the piston 46 controls the valve 34 and, by means of a linkage 50 and a cam 52, also moves a core 56 in a transformer 58 whereby a resetting signal is generated which signal is representative of the position of the valve 34 and which is fed to the magnetic amplifier device 36 via an adjustable resistor 94 in opposition to the command signal from the demodulator 26. A resistor 92 is provided for adjustment of the null position of the magnetic amplifier device 36 together with the feedback circuit 120, 122. In another embodiment the valve 34 is operated by an electric servomotor and the control is effected by two magnetic amplifier devices acting in opposition. Specification 425, 507 is referred to.
Patent GB-914125-A (GB)
Title: Method of fixing foamed resins
Inventor: SMALL ALAN MCLEAN
IPC: E04F13/08
Filed: 1960-01-14
Abstract: 914,125. Wall &c. linings. BAXENDEN CHEMICAL CO. Ltd. April 14, 1961 [Jan. 14, 1960], No. 1455/60. Class 20 (4). [Also in Group XXV] A sheet 2 of foamed natural or synthetic resin is fixed to a support 1 of rigid material forming part of a wall, roof, partition &c., by means of a fixing unit each comprising a patch 3 of natural or synthetic elastomer adhesively secured to the support, the patch 3 carrying a flat-headed pin 4, Fig. 3, or screw, Fig. 5 (not shown), the head of the pin or screw being next to the support and the end of pin or screw protruding through the patch, the foamed resin being impaled on the said end. The pin may be clinched over, as shown in Fig. 3, or its projecting point may be capped by a rubber &c. cap, Fig. 1 (not shown). Alternatively the pin is barbed and does not completely pass through the sheet 2. When the fastening device is in the form of a screw, a nut is applied thereto on the outer face of the sheet 2. The adhesive may be neoprene based and may be applied to the patch and protected by a strippable impervious covering. When the support is of asbestos it is sealed, e.g. by shellac, at the locations where the patches are to be applied.
Patent GB-112979-A (GB)
Title: Improvements in Variable Speed Gearing.
Inventor: HADDAN ALFRED JOHN HENRY
IPC: F16H37/08
Filed: 1917-01-30
Abstract: 112,979. Haddan, A. J. H., (Osborn, A. E.). Jan. 30, 1917. Variable-speed epicyclic gearing.-In variablespeed and reversing gearing for use on motorvehicles &c., the speed of the free member of the gear is controlled by a brake and by auxiliary friction gearing driven by the driving-member of the gear, a clutch being used for direct drive In the form shown in Fig. 1, the driving-shaft 10 gears a fly-wheel 16 and a toothed annulus 11, which gears with a planet-wheel 12 carried on a frame turning with the driven shaft 20. A cage 14 screws into the planet-frame and carries a clutch part 19 adapted to be pressed into engagement with a clutch part on the Hy-wheel 16, for high-speed solid drive, by means of arms 25 pivoted on an extension 30 of the shaft 20 and acting on a ring 26 bearing against a washer 27 secured to the fixed driving-shaft 10; the arms 25 are lifted by a spool 22 and press the shaft 20 and cage 14 to the right, return being effected by a spring 28 or other means. For second speed, a brake 42 is applied to a drum 17 keyed to the sun-wheel 13 of the epicyclic gear. A friction disk 44 brought by a lever 45 into engagement with surfaces 58, 48 on the fly-wheel 16 and drum 17 provides the first speed, and a roller 52 engaging surfaces 59, 49 gives the reverse. A removable plug or bush 18 allows removal of the wheel 12. The roller 52 may be dispensed with. the flat disk 44 being inclined to engage inclined surfaces on the parts 16, 17 and movable laterally to change the speed of the drum 17 in a continuously variable manner. As shown in Fig. 3, the inclined disk 47<b> has only two engaging positions into which it is moved for reverse and slow forward-speed by an eccentric pin 68 on a rockshaft.
Patent GB-703999-A (GB)
Title: Improvements relating to the manufacture of electric cables
Inventor: ROSEN ABEL
IPC: H01B13/26
Filed: 1951-01-19
Abstract: 703,999. Making electric conductors ; soldering; drawing. SIEMENS BROS. & CO., Ltd. Jan. 18, 1952 [Jan. 19, 1951], No. 1539/51. Classes 83 (2) and 83 (4). [Also in Group XXXVI] In making a cable, an outer tubular conductor or screen is formed by folding strip metal longitudinally over an insulated conductor or conductors, the cable being passed through a solder bath to soften a tin or solder coating on at least the overlapping portion and then being rapidly cooled to unite the convolution or convolutions. Copper strip is folded about the insulation which may be in disc form and of rubber or polythene. The cable is fed past preheating gas jets 3 to be immersed in molten solder 9 in a die where it is reduced to final size. The cable is then cooled by a water spray 4. The solder in the die is heated by an electric coil in a space 5 and its temperature and or the preheating means may be controlled by a thermostat in a tube 8 in the die. The cable may be for high frequency.
Patent GB-276876-A (GB)
Title: Improvements in or relating to gate, door and like hinges
IPC: E06B11/04
Filed: 1927-01-18
Abstract: 276,876. Gill, T. W. Jan. 18, 1927. Hinges.-A gate or door is mounted on a hinge 7 with an inclined attachment plate 1 that is adapted to be detachably associated with the attachment plate 11 of an upper hinge 10. The inclined plates of each of two lower hinges may be similarly arranged with regard to the upper hinge. The plate 1 may engage a recess 12 in the plate 11, or the plate 11 may be serrated, as in Fig. 4, or secured to the plate 1 by a rivet. The plate 11 may also be inclined, and the two plates on the gate post may be' formed integrally with one another.
Patent GB-450175-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F13/00
Filed: 1935-01-17
Abstract: 450,175. Advertising and displaying. ELLIOTT, A. C., Dorland House, Regent Street, and CIGARINI, A., 6, Lancaster Gate Terrace, both in London. Jan. 17, 1935, No. 1577. [Classes 3 (i) and 3 (ii)] In an advertising device of the kind comprising a casing having a transparency on one side illuminated by a lamp within the casing, and an aperture at the top above which an object is placed, an aperture or apertures in the top of the casing is or are provided with a lens or lenses or prismatic system for throwing the light of the lamp on to the object in a convergent or divergent beam. As shown in Fig. 2, the casing is provided with a transparency 8, protected by a glass sheet 9, and is formed with an aperture 5 provided with a lens 6 over which is placed an object such as a transparent container filled with liquid. Ventilating apertures 12, 13 are provided. The lens 6 may be replaced by an annular prism. In a modification, Fig. 6, the lamp 2 is mounted within a screen 17 provided with an aperture 18 and rotated through a pulley 19 and belt 20 by a motor 21, and a fixed screen 14 with apertures 15, 16, surrounds the screen 17. In another arrangement Fig. 7, additional apertures 22 are fitted with prisms 23 for directing light on to the object 24. In a further modification the object is supported above the lens 6 on a glass platform rotated by a motor. In the case of an opaque object, the aperture 5 is provided with an opaque centre, light passing through the peripheral portion of the aperture and through other apertures, if desired, on to the sides of the object. An annular prism may be provided in the aperture 5 and a coloured mica or like disc may be pivoted near the top of the casing so as to be rotated by the rising hot air and produce changing colour effects.
Patent GB-635996-A (GB)
Title: Device for use in the formation of designs
IPC: A63F9/08
Filed: 1947-01-18
Abstract: 635,996. Toys. CARNELL, P. V. Jan. 18, 1947, No. 1683. [Class 132 (iii)] A toy or designing device comprises a plurality of flat curved strips articulated together in the form of an endless chain in such a manner that they can pivot about their ends to form designs as required. The strips may be of equal length and arcuately formed.
Patent GB-656981-A (GB)
Title: Improvements in clockwork toys
IPC: A63H19/04
Filed: 1949-01-21
Abstract: 656,981. Clockwork toys. RUSSELL, A., and MORRITT, K. P. Jan. 21, 1949, No. 1792. [Class 132 (iii)] A toy, e.g. railway engine, motor car, boat or the like comprises a shell moulded in one piece from plastic material and housing a clockwork mechanism which is held in position by a forcefit engagement. The whole engine shownin Fig. 3 and including the gears but with the exception of the mainspring 19 (not shown), is moulded in a thermo-plastic material. The mechanism side plates 10, 10 which are spaced by plug and socket members 12, 11 are positioned between ribs 7 and held in place by lugs 13 engaging apertures 8 or indents in the shell 6.
Patent GB-698815-A (GB)
Title: Grinding machine for the final working up of chocolate
IPC: A23G1/12
Filed: 1951-01-24
Abstract: 698,815. Roller-and-ring mills. SOC. ANON. MACCHINE INDUSTRIA DOLCIARIA CARLE & MONTANARI. Jan. 24, 1951 [April 26, 1950], No. 1804/51. Class 59 In a mill for the final working up of chocolate of the kind comprising rollers 8 adapted to revolve round the driving shaft 7 of the mill and about their own axes, the rollers are rigidly attached to their respective shafts 9 which are rotatably carried by hubs 11 rigidly attached to the shaft 7 so that the rollers 8 are rotated around the shaft 7 as the latter revolves, and the rollers are rotated about their own axes by means of a train of pinions 13, 14, 16. The pinion 16 is keyed to a hub 17 forming an integral part of a frame 5 to which a container 3 is fastened, the frame being slowly rotated by means of a pinion (not shown) engaging teeth 6 on the frame. Each roller is pressed into contact with the surface of the container by means of a spring 22, the lower end of which rests on thrust bearings located at the bottom of a chamber 23 and the other end of which presses against a member 24 screwed on to a threaded part of the hub 11 for the roller shaft 9. The chocolate 21 is conveyed through an opening 25 at the bottom of the container by means of radial vanes 26 fastened to the shaft 7.