baber/WOPTO huggingface dataset:
Patent GB-806544-A (GB)
Title: Phase detectors
IPC: H04N9/70
Filed: 1956-02-21
Abstract: 806,544. Phase detectors. HAZELTINE CORPORATION. Feb. 21. 1956 [March 23, 1955], No. 5301/56. Class 40 (5). ' A phase detector produces two D.C. output potentials representative of the in-phase and quadrature phase components of one signal relative to another of reference phase by employing two phase detector circuits connected in cascade to each of which the signals are applied in pairs, one pair differing by 90 degrees in relative phase from the other, and one phase detector circuit including an amplifier tube amplifying one of the signals applied to the other phase detector circuit. In a colour television receiver, a colour reference burst is applied to the first control grid 38 of a valve 31 self-biased to cut-off by a cathode circuit 45 and rendered conducting only during the burst by a flyback negative-going pulse applied to its cathode through a transformer 48 and capacitor 47. Moreover a local colour oscillator applies an oscillation through a tuned and phase adjusting circuit 32 to a further control grid 40 and through a coupled tuned circuit a push-pull oscillation across a pair of beam deflection electrodes 41, 42, in phase quadrature to that applied to the grid 40, so that the beam impinges alter. nately on one of two anodes 35, 36. One anode 35 is earthed, the other 36 is connected through a load resistor 44 to a cathode load resistor 46 connected to earth. The output across resistors 44, 46, smoothed by circuit 43, is thus a balanced D.C. voltage measuring departure of the deflection voltage from phase quadrature with the reference burst on grid 38, and of the colour oscillator from synchronism. This output, being zero at phase synchronism, may control the oscillator phase through a reactance circuit. Also, across a capacitor 34 in series with the tuned circuit 32, an in-phase voltage builds up which at phase synchronism is a maximum and may control the receiver colour killer, or the change-over control of a two-mode automatic phase control system employing a " quadricorrelator." Part of the in-phase control voltage after smoothing at the junction of resistors 49, 50, may be applied to the centre tap of the deflection transformer secondary as automatic gain control of the amplified burst. In a modification, Fig. 3, the in-phase voltage is derived from a screen grid electrode of a single anode valve 70, followed by a conventional phase discriminator 77 to which the amplified burst is applied together with a phase quadrature input from the colour oscillator derived from a series circuit of a capacitor 78 and tuned circuit 32b. The chroma input to valve 70 is short-circuited by a diode 73 rendered non-conducting only during the reference burst by a flyback pulse.
Patent GB-1456279-A (GB)
Title: Method of comminuting material
IPC: B02C19/22
Filed: 1974-02-05
Abstract: 1456279 Comminuting apparatus ILLINOIS TOOL WORKS INC 5 Feb 1974 [7 Feb 1973] 05309/74 Addition to 1219717 Heading B2A  Comminuting apparatus comprises a pair of partially intermeshing toothed rollers 24, 26 'having surfaces 38, 40, 50, 52, Fig. 2 with a herringbone or chevron pattern. The acute angles of the herringbone pattern defined by one set of teeth, as seen in plan at the bite of the rollers face. and open towards the corresponding acute angles of herringbone pattern defined by the other set of teeth, so that material fed into the bite can be urged axially inwardly away from the opposite extremities of the rollers. Material e.g. defective plastics tube 20 Fig. 1 is fed via an opening 18 to the rollers 24, 26 one of which 24 is driven by a motor 30. A second pair of rollers 54, 56 Fig. 7 having finer pitch teeth may be used for further size reduction of material, roller 54 also being driven by motor 30. Rollers may be machined as in Fig. 10 and then clamped up together to form the chevron surface as in Fig. 11.
Patent GB-1154126-A (GB)
Title: Improvements in or relating to Thermoplastic Interpolymers having Enhanced Impact Resistance
IPC: C08F291/02
Filed: 1967-02-03
Abstract: 1,154,126. Styrene/methyl methacrylate polymers. PLASTUGIL. 3 Feb., 1967 [11 Feb., 1966], No. 5377/67. Headings C3G and C3P A mixture of 65-50 parts by wt. of styrene per 35-50 parts methyl methacrylate with a minor amount (relative to the monomers) of elastomer is continuously bulk polymerized by passing a thin layer of the mixture of thickness, e, between two diathermic walls of heat exchange area, S, the ratio of S to e being at least 0À125 cm.<SP>-2</SP> in cgs units, at a constant temperature in the range 160-185‹ C. during a reaction period of “-3 hours and collecting at the outlet of the diathermic walls a mixture containing 40- 70% of monomers converted to copolymer which is then separated. The elastomer may be polybutadiene or a copolymer of butadiene and styrene. The process conditions are in general as described in 1,092,844.
Patent GB-1435093-A (GB)
Title: Vehicles
IPC: B60R21/015
Filed: 1972-02-04
Abstract: 1435093 Motor vehicle safety devices SURREY STEEL COMPONENTS Ltd 4 May 1973 [4 Feb 1972] 5378/72 Heading B7H A vehicle having a seat belt includes a set of switches which are arranged to be automatically actuated in a certain sequence when a person enters the vehicle and fastens the belt, operation of the vehicle being prevented until the switches have been actuated in that sequence. Two sets of electric switches A, B associated with the driver's and the front seat passenger's seat belt respectively are connected to a control circuit 10 which is also connected to the ignition circuit 12 of the vehicle, an alarm buzzer 12 and a bonnet switch 11. Switch 14 is actuated when a predetermined length of belt is drawn off the reel of the driver's belt and switch 15 is actuated when the belt is fastened, so that the ignition system 12 is only energized by the circuit 10 if a sufficient length of belt to go around the driver is drawn off before the belt is fastened. Switch 16 is a weight detector or proximity switch which is actuated only if a passenger sits in the passenger seat so that switches 17, 18 which are actuated in similar manner to the switches 14, 15 but by the passenger's belt are operative only if the passenger's seat is occupied. Once the vehicle is in motion the ignition circuit is not disabled if any of the switches is de-actuated but the alarm buzzer 12 and/or a warning light is energized. The bonnet switch 11  overrides the sets of switches A, B when the bonnet is open so that the engine can be run with the vehicle unoccupied for maintainance or testing purposes. There may be a switch actuated by the closing of one or more doors of the vehicle, and mechanical switches or hydraulic switches connected to the braking system of the vehicle may be used instead of electric switches.
Patent GB-329041-A (GB)
Title: Production of amphoteric hydrated oxides of metals by hydrolysis
IPC: C01B13/36
Filed: 1929-02-18
Abstract: 329,041. Marks, Sir G. C., (Monk, R. H., and Irwin, J.). Feb. 18, 1929. Zirconium and other metallic oxides. - The hydrolysis of solutions of salts of amphoteric metals of Group IV. of the Periodic Table is carried out after addition to the solution of an oxide of the metal concerned prepared by precipitation with an alkaline compound such as ammonia or sodium carbonate. The hydrated oxide obtained settles rapidly and is easily filtered. The preparation of hydrated zirconium oxide is described.
Patent GB-348232-A (GB)
Title: Manufacture of bleaching-out layers
IPC: G03C7/02
Filed: 1930-02-18
Abstract: Azines; oxazines; pyronines.-To regulate the bleaching-out velocity of dyestuffs for use in the bleaching-out process, substituents are introduced into an aryl nucleus linked to the chromogen.  The introduction may be carried out by the use of substituted materials in the synthesis of the parent dyestuffs. Examples of substituted dyestuffs are, chlorisorosinduline, 2 : 4-dichloranilino-flavinduline, 4-nitrophenyl-, 4-acetophenyl-, 4-thiocyanophenyl-, and cyclohexylrosindulines, 3-aldehydoanilino-, and 2-, 3-, or 4-chloranilino-Meldola blues, 4-carbethoxyphenyl-Nile blue and 4-chlorophenyl-pyronine in which the sensitiveness is increased, and 2-, 3-, or 4-methoxyanilino, and 2-methoxy-1-naphthylamino-Meldola blues, 4-phenyl-and 4-hydroxy-phenylrosindulines, and 2-methoxy-4-methylanilino-flavinduline, in which the sensitiveness is reduced.  A composite layer for bleaching out in three colours comprises phenanthrophenazonium methyl nitrate (prepared from phenanthrophenazine and dimethyl sulphate, followed by reaction with ammonium nitrate), dimethyl-amino-o-anisidino-phenonaphthazoxonium chloride and m-chlorophenylrosinduline together with allylthiourea.
Patent GB-881395-A (GB)
Title: Improvements in or relating to multistage self-priming type centrifugal pumps
IPC: F04D9/02
Filed: 1958-02-19
Abstract: 881,395. Centrifugal pumps. YOKOTO, H., and YOKOTO, S. Feb. 19, 1958, No. 5426/58. Class 110 (1). In the centrifugal pump shown, the firststage impeller 1 is of a low-head self-priming type and discharges by way of guide vanes 5a to a chamber 7 in which entrained air separates from the liquid. The separated air is discharged to atmosphere by way of a passage 8 and a vent 17, a filter (not shown) preventing clogging of the vent by dust or sand. The liquid passes by way of passages 9, 10 and 11 to the inlet 12 of the second-stage impeller 2 (which is of normal type), a weir 14 between the passage 11 and inlet 12 trapping sufficient liquid to prime the second stage. A sealing impeller 15 prevents the initial charge of priming liquid being removed from the passage 11 by the impeller 2. There may be more than two stages, and the stages are not necessarily on a common shaft or within a common casing. The second-stage inlet 12 may be located adjacent the casing wall, i.e. towards the coupling 20. The vent 17 may then be replaced by a slit in the position 23, between the shaft and the adjacent surface of the casing wall.
Patent GB-193865-A (GB)
Title: Improvements in toy boxing game appliances
IPC: A63H13/06
Filed: 1923-02-24
Abstract: 193,865. Decamps, G. Feb. 25, 1922, [Convention date]. Boxing games, mechanical. -Appliances for playing a boxing game comprise two articulated puppets arranged upon a platform and adapted to be operated by rods which are held by the players and are attached to the jointed forearms of the puppets. Each puppet is supported on a rod B, Fig. 2, projecting through a slot e in the platform E and mounted on a carriage D slidable on two rods d<1> parallel to the slot e. The body F of each puppet is connected to the pelvis C by a spiral spring c and may move into the positions F<1>, F<2>, when struck. A number of projecting plungers I are provided in the body portion, these plungers bear scoring values and are adapted to slide inwardly when struck. The plunger j<2> is spring-pressed and bears against the upper end of a lever J which is pivoted at j<1> and engages at its lower end with a hook g attached to the base G. A blow on the plunger j<2> causes the lever J to disengage the hook g and allows the body portion to pivot about a hinge f under the action of a spring g<3> into the position F<3>. The arms K, Fig. 4, are jointed to the shoulder by an elastic band passing through the body. The fore-arms are connected to the arms by hinges k<1>. The arms are formed with recesses k<3> to allow the operating rods k<2> to be freely manipulated.
Patent GB-395293-A (GB)
Title: Improvements in or relating to claw couplings for gears
IPC: F16D11/14
Filed: 1933-02-22
Abstract: 395,293. Claw clutches. MAYBACHMOTORENBAU GES., Friedrichshafen-on- Bodensee, Germany. Feb. 22, 1933, No. 5472. Convention date, Feb. 23, 1932. [Class 80 (ii).] In a claw clutch wherein the end face of each claw is bevelled, as shown at e, a steeper bevel portion g is formed a't the shorter end of the claw, so as to obtain an increased initial penetration i of the claws on engagement. Specification 298,186*, [Class 80 (ii), Gearing, Variable-speed &c.], is referred to.
Patent GB-801203-A (GB)
Title: Sound recording or reproducing apparatus incorporating a sound film speed stabilising mechanism
Inventor: MORFEY DENNIS SURRIDGE
IPC: G11B15/50
Filed: 1954-02-24
Abstract: 801,203. Anti-friction wheel bearings. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 24, 1955 [Feb. 24, 1954]; No. 5474/54. Class 12 (1). [Also in Groups XXVI, XXXII and XXXVIII] A mechanism for stabilizing the speed of a film 2 past the sound head not shown of a sound film recording or reproducing apparatus comprises a drum 1 towed by the film and driving a coaxial large diameter friction disc 3, and a flywheel 5 fixed on a small-diameter shaft 4 rotatably supported with a portion of its periphery in frictional contact with disc periphery so that the flywheel is rotated by the film at a speed greater than that of the drum. As shown, the flywheel shaft 4 is supported by the V's formed by the peripheries of two adjacent ball races 6, 7, and of a ball race 8 and the disc 3; in modifications races 6, 7 may be replaced by a single bearing, and the shaft 4 may carry two flywheels, one each side of the disc 3.
Patent GB-566035-A (GB)
Title: Stop-motion for loose reed looms
IPC: D03D51/00
Filed: 1943-04-07
Abstract: 566,035. Loom stop motions. HOLMES, GOLDRICH, & CO., Ltd., and BENSON, N. April 7, 1943, No. 5527. [Class 142 (i)] A stop motion for a loose'reed loom is provided with mechanism whereby, when a trapped shuttle exercises pressure on the reed, the setting-on handle is released and a brake is applied to stop the loom. The lower rib of the reed 1 is pressed against the back of the shuttle race 3 by an arm 5 rotatable with an arm 7 having a projection 8 normally out of alignment with a lever 12 connected to the brake 14 and setting-on handle 20. A trapped shuttle moves the lower rib of the reed and rotates the arms 5, 7 so that the brake and setting-on handle are actuated. In a modification, the brake and setting-on handle are interconnected, and the arm 7 acts directly upon the handle. The brake and setting-on handle may be connected in such manner as to provide for relative adjustment, and may be held in adjusted position by spring means.
Patent GB-415138-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C7/44
Filed: 1933-02-23
Abstract: 415,138. Chairs; adjustable backrests. BURROUGHS ADDING MACHINE CO., 2nd Avenue, Detroit, Michigan, U.S.A. Feb. 23, 1933, No. 5568. Convention date, May 31, 1932. [Class 52 (ii).] In a metal chair with an adjustable back-rest 31 supported on a curved standard 14, the latter is slidably mounted in a sleeve 13 which is pivotally connected to the seat in a slot in the rear edge thereof, and means are provided for holding the standard 14 and the sleeve 13 in adjusted position, preferably in the form of a pair of links 42 pivoted to the seat support 2 and extending rearwardly on each side of the sleeve 13, against which they may be clamped by means of a bolt and wing nut 44. The seat may be formed of a metal core 3, to which is welded a metal plate 5, a cushion 6 being fixed to the plate 5. The sleeve 13 is of rectangular section, and is pivoted on a pin 12. The back-rest standard 14 is provided with openings 19 into which a spring-pressed pin 20 is adapted to enter to hold the back rest in vertically adjusted position. The depending arms 40 of the sleeve 13 are arranged so as to grip the lower part of the standard 14 when clamped to the links 42. The back-rest 31 may be adjustable angularly by means of a thumb-nut 32.
Patent GB-977928-A (GB)
Title: Improved surface-finish material
IPC: C04B28/00
Filed: 1963-02-12
Abstract: A surface-finish material comprises a mixture of pulverized natural stone and an hydraulic calcarious binder and 5-40 weight per cent of hard roughly spherical water-insoluble grains whose maximum diameter is larger than the largest particle size of the mixture but less than 4 mm. The natural stone may be marble, the binder may be plaster, or white cement with or without lime, and the grains may be quartz.
Patent GB-840833-A (GB)
Title: Holders for electric discharge lamps
IPC: H01R33/08
Filed: 1958-02-21
Abstract: 840,833. Lamp-holders. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Feb. 21, 1958 [Feb. 21, 1957; March 14, 1957], No. 5799/58. Class 38(1). A holder for a fluorscent lamp comprises a horning 1 of transparent thermo-plastic material incorporating a contact carrier 2 of non-flexible heat resistant material such as a synthetic resin which has spring contact members 5 to receive the lamp pins 6 when the safety disc 8 is turned through 90 degrees. The disc 8 may of transparent thermoplastic material and constructed to prevent narrowing of the slot 7, under pressure of spring contacts 5 by providing it with a reinforcing metal yoke 12. Alternatively it may be made of a rigid heat resisting glass such as silicate glass.
Patent GB-452452-A (GB)
Title: Improvements in electrical power auxiliary apparatus for boiler houses and the like
IPC: H02P5/68
Filed: 1935-02-22
Abstract: 452,452. Control of several D.C. motors. EASTWOOD, F. A., 46A, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 22, 1935, No. 5801. [Class 38 (iii)] Auxiliary equipment for a boiler house comprises a number of fans and blowers for providing induced and forced draughts respectively, a number of motors each driving one or more of the fans, and further motors each driving one or more of the blowers, the fan motors being divided into groups of one or more motors with the main circuit or circuits of each group associated respectively with the main circuit or circuits of one or more of the blower motors, and common circuit-breakers or respective circuit-breakers mechanically coupled, being inserted in circuit respectively with the main circuits of each group of associated main circuits. Blower motors FD and FD<1> and fan motors 1D, 1D<1> are supplied from a generator 1, and the circuits of the motors 1D, FD are controlled by a circuit-breaker 6, and those of the motors 1D<1>, FD<1> by a circuit-breaker 7 so that if a fault develops in any one of the fan motors 1D, 1D<1> or blower motors FD, FD<1> causing the corresponding fan or blower to stop, the opening of the circuit-breaker 6 or 7 controlling that motor will also de-energize one of the motors driving a blower or fan. The generator 1, which is field controlled by a potentiometer 4, also supplies motors SA, SA<1>, driving fans or blowers giving a secondary air supply, and a motor S driving stoking apparatus. The motors SA, SA<1> and S are controlled by circuit-breakers 8, 9 and 10 respectively The field windings 11-17 of the several motors are supplied from an exciter 5 through regulators 19, 20, 21 and 26. The regulators 19, 20 and 21 are common to the pairs of motors 1D, 1D<1>, FD, FD<1> and SA, SA<1>, respectively, and associated with the respective pairs of motors are potentiometer field regulators 23, 24 and 25. The regulators 23, 24 and 25 are initially adjusted so that the motors of each pair share the load properly, and the regulators 19, 20, 21 may be adjusted to give suitable proportioning of the power of the several pairs of motors. Specification 452,453 is referred to.
Patent GB-1195325-A (GB)
Title: Improvements in or relating to Water Heating Plant
IPC: F24D3/08
Filed: 1968-02-06
Abstract: 1,195,325. Valves. SOC. GENERALE DE FONDERIE. 6 Feb., 1968 [9 Feb., 1967], No. 5883/68. Heading F2V. [Also in Division F4A. A temperature responsive valve in an instantaneous water heater (see Division F4) controls liquid flow in the passage 16a, 16b, in response to the temperature of liquid in a second passage 9a. The valve comprises a wave capsule 38 in the passage 9a controlling a conical valve member 51 co-operating with an annular member 53 to vary the flow passage, the member 53 being held in position against a shoulder in the body by a spring 57. The capsule 38 acts upon the valve stem 44 through a resilient clamping block 48, the valve 51 being urged upwardly by a spring 58.
Patent GB-198079-A (GB)
Title: Improvements in etching or engraving machines
IPC: B44B3/00
Filed: 1922-02-28
Abstract: 198,079. Eaton, W. S. Feb. 28, 1922. Engraving.-Relates to pantographic engraving or etching machines of the type described in Specification 153,186, wherein a work plate 49 is clamped on a table 35 slidably carried in guides by a support 42, and a work point 19 is carried by an arm 18 mounted on a carriage 15 universally movable in the plane of the work by the operation of a pendulum transmitting arm 26 carrying a stylus 33 adapted to be moved over a pattern supported on a base 11. A member is provided adapted to engage the stylus and hold it, the pendulum arm 26, and the carriage 15 immovable, means being also provided to move the latter longitudinally step by step. The work point 19 may thus be held stationary while the table 35 is moved laterally so as to inscribe a horizontal line on the plate 49 and subsequently moved into positions for inscribing spaced lines parallel to the first. As shown, the support 42, Fig. 3, is also longitudinally slidable in guides 44 so that vertical lines may be inscribed by traversing the support 42 by means of a rack and pinion, the spacing being provided by an intermittent adjustment of the work table 35 by means of a similar rack and pinion. The device for rigidly fixing the stylus comprises a removable plate 53 adjustably fixed to the pattern table bv means of a clamping plate 59 engaging behind a slot in the table and a clamping screw 61. Pins 60 projecting from the plate 59 engage holes in the member 53 to prevent angular movement thereof. A block 50 slidable on the plate 53 and operated by means of a rotatable screw 52 is provided with an aperture 51 in which the stylus 33 is held by means of a spring 62, or with a socket for a ball-ended sleeve 64, Fig. 5. within which the stylus 33 is secured by a screw 65. The screw 52 is rotated by its knurled end 58 by an amount regulated by a star wheel 55 and spring pawl 57.
Patent GB-639439-A (GB)
Title: Improvements connected with folding pushcars or wheeled chairs
IPC: A61G5/08
Filed: 1948-02-27
Abstract: 639,439. Folding push-chairs. MIRECKI, A. Feb. 27, 1948, No. 5905. [Class 108 (i)] A folding push-chair with a collapsable parallelogrammic superstructure 3, 4, 7 is characterised by the handle supports 12 being pivoted at 14 to the members 4 supporting the back rest 5, and extending beyond the pivotal connections so that studs 16 may slidably engage longitudinal slots or guideways 17 in normally horizontal side members of the superstructure, such as the side arms 7, whereby the handle supports 12 are folded automatically with the superstructure. The forward ends 18 of the slots 17 are turned upwardly and the handle supports 12 are curved so that the latter lie against the folded superstructure. Folding struts 8 lock the structure when extended, rearward extensions 11 being provided to facilitate operation of the struts by hand or foot. The foot-rest 19 is formed with a finger opening 20, or with a handle for carrying purposes, while the chassis has rearward extensions 21 which, with the rear wheels 2, serve as supports for the folded structure, as shown in Fig. 3.
Patent GB-1171847-A (GB)
Title: Optical Cinamatographic Projection System and Film for use therein.
IPC: G03D15/00
Filed: 1967-02-08
Abstract: 1,171,847. Optical projection systems; films. TEVERAMA S.A. Feb. 8, 1967 [March 1, 1966], No.5996/67. Headings G2C and G2J. In an optical projection system for cine films bearing negative vesicular images, the film is guided to follow the curvature of a cylindrical mirror 4, a grating of reflecting elements 3 at the centre of curvature of mirror 4 directing light from a laterally off-set source 1 on to the film where mirror 4 returns the light through the film, only that portion of the light which is diffracted at the film being passed by elements 3 for projection by lens 7 on to a screen as a positive image. In a modification, the film incorporates a metallic reflective layer behind the imagebearing emulsion and mirror 4 is dispensed with. A double-sided film of this kind may be used.