baber/WOPTO huggingface dataset:
Patent GB-223580-A (GB)
Title: Improvements in the application of two grid valves
IPC: H04B1/16
Filed: 1924-10-15
Abstract: 223,580. Compagnie GÚnÚrale de Telegraphie Sans Fil. Oct. 15, 1923, [Convention date]. Thermionic detectors, amplifiers, and generators. -In a detector circuit for a four-electrode valve having two grids, the outer grid 4 is connected to the heating-circuit of the cathode 2 through a tuned circuit comprising a variable condenser 9 and an inductance 8 coupled with an inductance 11 in the aerial circuit and is maintained at a positive potential with respect to the negative end of the cathode: or the grid mav be connected with the aerial directly or through an Oudin circuit. The inner grid 3 is connected through an inductance 15, coupled with one of the inductances 8, 11, and a telephone or other receiver 14, with the positive terminal of the battery 13 which is connected directly with the anode 5. The arrangement may be used for autodyne reception. The Specification as open to inspection under Sect. 91 (3) (a) describes an amplifier in which the input circuit is connected between the outer grid and the filament either through a transformer or through a capacity with a high resistance between the grid and the filament. The inner grid is connected to the positive terminal or to an intermediate point of the high-tension battery, and the anode is connected to that battery through a receiver. This subject-matter does not appear in the Specification as accepted.
Patent GB-851571-A (GB)
Title: New pigments of the thiachromone series
Inventor: WILKINSON DONALD GRAHAM
IPC: C09B57/00
Filed: 1958-07-30
Abstract: 2 : 5-Diarylmercapto-terephthalic acids are made by hydrolysis of the corresponding methyl or ethyl esters prepared by condensing 2 : 5-dibromo- or -chloro-terephthalic dimethyl or diethyl esters with the appropriate arylthiols.  Arylthiols used are thiophenol, 4-methyl-, 4-methoxy-, 3 : 5-dimethyl-, 4-methoxy-3-chloro-, 2-methoxy-5-chloro-, 2-, 3- and 4-chloro-, 2 : 4-, 2 : 5-, 3 : 4- and 3 : 5-dichloro-, 2-methyl-3-chloro-, 2-methyl-4-chloro-, 3 : 5-dimethyl-4-chloro-, 3-methylsulphonyl-, 4-dimethylamino-, and 3- and 4-acetylamino-thiophenols, 2-thionaphthol, 6-acetylamino-2-thionaphthol, and 4-and 5-acetylamino-1-thionaphthols.  S-Acetylp-dimethylaminothiophenol is made by reducing p-p-bis(dimethylaminophenol) disulphide with zinc in acetic acid and acetic anhydride.ALSO:The invention comprises thiachromone pigments of the formula:  <FORM:0851571/IV (c)/1> where X and Y each represent the atoms necessary to compete a benzene ring or a system of fused 6-, or 6- and 5- membered rings, such as naphthalene, pyrene and carbazole, and wherein the rings or ring systems represented by X and Y may carry non-ionic substituents, such as halogen, nitro, aryl, carbalkoxy, acylamido, alkyl and aryl-ureido and -thioureido, arylidineamino, alkanesulphonyl, hydroxy, alkoxy, aryloxy, amino and aryl- and alkylsubstituted amino, and substituted or unsubstituted alkyl, carbamyl and sulphamyl groups. The pigments are made by treating a dicarboxylic acid of the formula: <FORM:0851571/IV (c)/2> with a dehydrating or condensing agent, or when X and Y carry ureido, thioureido, benzylidineamino or acylamido groups the corresponding pigment wherein X and Y carry amino groups may be treated with an isocyanate, isothiocyanate, aldehyde or the functional derivative of an organic acid.  The pigments are used in printing inks, paints, lacquers and stoving enamels and for colouring rubber, cellulose acetate, polyvinyl chloride, polyethylene, polystyrene, polyesters and polyamides giving bright yellow to purple shades.
Patent GB-354558-A (GB)
Title: Rolling machine for finishing roadway coverings
IPC: E01C19/26
Filed: 1930-08-16
Abstract: 354,558. Road rollers. FEDI, J., 55, Rue de Lyon, Paris. Aug. 16, 1930, No. 24588. Convention date, Aug. 29, 1929. [Class 6 (i).] A rolling machine for finishing concrete roadway coverings comprises a main frame 5, an engine 6, and longitudinal rollers 1, 2 of relatively small diameter and of a length slightly greater than the length, measured along the road, of the transverse stretch or band of road-covering material placed in position at one time, the rollers supporting the weight of the machine when in use and being reversibly rotatable by the engine so that the machine may be driven across the road from one side to the other. The rollers 1, 2 may be driven through chain gearing 11, as shown diagrammatically in Fig. 1. The roller 2 may be mounted in spherical bearings, the front journal box 31, Fig. 3, being slidable transversely of the machine for adjusting the roller at an inclination for finishing curved sections of the road. It is moved by means of a link 33 and a pivoted lever 34 provided with a fork 36 carrying a nut 37 on a screw-threaded shaft 38 rotated by means of a hand-wheel 40, shaft 41, and bevel gearing 42, 43. The engine 6 may also drive a transverse roller 13 mounted on a pivoted frame which is adjustable vertically to raise the roller from the ground. A second transverse roller 14 may be provided with steering mechanism. The transverse rollers may be raised by means of a jack or by racks 30 actuated by pinions driven from the engine. Normally these rollers are raised from the ground, but they are lowered for moving the machine from one band of covering material to the next, along metal plates placed on the road, or along tracks at the side of the road. For transportation purposes road wheels may be mounted on axles fixed on the machine or temporarily attached to it. The Specification as open to inspection under Sect. 91 (3) (a) states that the longitudinal rollers may be raised vertically and that the machine may be drawn by animals or a motor vehicle, and also refers to various methods of making and treating roadway coverings. This subject-matter does not appear in the Specification as accepted.
Patent GB-292811-A (GB)
Title: Water heaters
IPC: F24H9/18
Filed: 1927-09-19
Abstract: 292,811. Brill, A. P. Sept. 19, 1927. Boilers have a heat-regulating element such as a thermostat 27 controlling a gas-burner 18, both being removable as a single unit from the same side of the heater. A drain-cock may be disposed on the same side. Reference has been directed by the Comptroller to Specifications 13347/11, 153,737, and 223,223.
Patent GB-242755-A (GB)
Title: Improvements in swivel joints
IPC: G02B7/18
Filed: 1924-10-17
Abstract: 242,755. Taylor, M. H., and Kapella, Ltd. Oct. 17, 1924. Pinless and like hinges. - A swivelling joint particularly adapted for optical apparatus comprises a support A to which the inner swivelling member B is connected by a flexible ring C which engages grooves a, b on the members A, B respectively, either of the recesses a, b being as deep as or preferably deeper than the radial thickness of the member C. The ring is cut through at c so that its ends may be sprung apart sufficiently to cause it to lie within the recess a when the parts are being assembled. For locking the swivelling member against rotational movement, one end of the ring C is provided with an adjustable abutment E as c<1> and the other end is arranged to be moved by a screw D which, by pressing against the end c<2>, tightens the ring on the movable member. The member B may also be held in an adjusted position by means arranged longitudinally to its axis instead of by contracting the ring.
Patent GB-389461-A (GB)
Title: Improvements in and relating to electric glow discharge devices
IPC: H01J17/00
Filed: 1931-09-02
Abstract: 389,461. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Moore, D. M.; 592, Park Avenue, East Orange, New Jersey, U.S.A.) Sept. 2, 1931, No. 24685. Convention date, Sept. 2, 1930. [Class 39 (i).] An electric glow-discharge lamp is provided with nested electrodes 4, 7, Fig. 1, separated by an annular space and supported by an axial pedestal 3 with their upper end surfaces transverse thereto, their lower end surfaces adjacent to the pedestal being covered by an insulating plate 9 of lava, alumina, or the like. The cylindrical inner electrode 4, which forms the cathode, is made of copper, aluminium, or other metal, preferably with a highly polished upper surface 5 of nickel, chromium or other metal applied by electroplating. The supporting-pedestal 3 is made of metal and screwed into the cathode 4, its lower end being connected to a leading-in wire 11 from a mounting- pin 15. The anode 7, also made of copper, aluminium, or other metal, substantially fills the space between the cathode and the wall of the tube, the space between the electrodes being about À01 mil, which is less than the mean free path of the molecules of the gaseous filling. Screws 10 secure the anode upon the insulating-plate 9, and short conductors 14 extending through the plate connect the anode to branch conductors 12<1> from a leading-in wire 12 connected to a supporting-pin 16. Insulating sleeves 8, 13 respectively surround the conductors 3, 12<1>. The filling consists of a gas such as neon, argon, or helium, or a gaseous mixture at a pressure of about 30 mm. of mercury. A getter such as calcium, magnesium, sodium, or the like may be introduced into depressions 18 in the anode and volatilized therefrom, either by high-frequency induction or by operating the lamp for a short period, using the anode as cathode. In a modification, Fig. 3, the annular space between the cathode 4 and anode 7 is almost completely filled by a layer 20 of insulation such as mica abutting against a shoulder 21 on the anode. The cathode is also provided with a central cratered insert 22 of iron, tungsten, thorium, or an alloy or other metal of good electron emissivity, and a centrally apertured disc 23 mounted upon the anode confines the light radiation to the crater. Specification 315,369, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-991173-A (GB)
Title: Improvements in toys or balancing devices
Inventor: HOUGHTON EDWARD HEYES
IPC: B62K17/00
Filed: 1961-07-10
Abstract: 991,173. Balancing devices. W. HOUGHTON (CLITHEROE) Ltd. Sept. 28, 1962 [July 10, 1961], No. 24831/61. Heading A6M. A balancing device comprises two wheels 11 spaced apart by a crank 15 having a double throw, each end of the crank being fixed adjacent the periphery of the respective wheel 11. Two pedals 16 are rotatably mounted on the crank.
Patent GB-381304-A (GB)
Title: An improved process and arrangement for drying wood and other structural materials
IPC: F26B21/00
Filed: 1931-09-07
Abstract: 381,304. Air-heating furnaces. LÍSCHE, H., 5, Hauptstrasse, Sch÷neberg, Berlin. Sept. 7, 1931, No. 25050. [Class 51 (ii).] A furnace for supplying drying air to a stack of wood, cement, or other material comprises a fire-box d, filter compartments e, and a chamber f provided with a suction fan g. The filter material may be fire-clay, limestone, or asbestos wool. Fresh air is drawn into an annular chamber h surrounding the fire-box and filter chamber and passes to a chamber i where it mixes with the combustion gases. Water or disinfectant may be introduced through pipe p to the filter chamber where it is vaporized and mixed with the combustion gases. The gases are driven by the fan g through pipe k to the covered stack of wood or other material. The fuel used in the furnace may be coal, coal-dust, oil, or wood.
Patent GB-1084379-A (GB)
Title: Improvements in or relating to piston sealing elements in hydraulic motors
IPC: F15B15/12
Filed: 1966-06-06
Abstract: 1,084,379. Pistons. F. SNEEN. June 6, 1966 [June 8, 1965], No. 25085/66. Heading F2T.  The packing 11 for the piston 2 of an hydraulic motor is carried by a mounting plate 7 which is slidably removable from the end of the piston in a direction perpendicular to the longitudinal axis of the piston. As shown, the mounting plate is provided with flanges 8 which intermesh with side flanges 6 on a piston of square cross-section, the plate being removable through an aperture 3 in the cylinder. The piston may be straight or annular independent of the cross-section and a boss 17 on the end of the mounting plate serves to protect the packing should the piston strike the end of the cylinder. The packing 11 is held on the mounting plate 7 by bolts (18), Fig. 1a (not shown). In another embodiment, Figs. 3 to 6 (not shown), the mounting plate is provided with a projection in the form of a stem (12) and disc (13) which slots into a T-shaped groove (14) in the end face (5) of the piston; instead of a stem, a hook may be provided.
Patent GB-377004-A (GB)
Title: Improvements in and relating to rotary slide valves
IPC: F16K5/04
Filed: 1931-09-07
Abstract: 377,004. Rotary slide valves. MASCHINENFABRIK AUGSBURGNURNBERG AKT.-GES., Nuremberg, Germany. Sept. 7, 1931, No. 25114. Addition to 370,320. [Class 135.] In the rotary slide valve of the parent Specification which has fixed longitudinal packing lamellae as well as fixed annular packing lamellµ, a fluid at a higher pressure than the controlled fluid is introduced in the spaces between the lamellµ to prevent the leakage of the controlled fluid. The latter entering by the inlet branch b of the valve housing g passes through the open end of the valve a to the valve port c and thence through a port d to the working space e of the engine. Pressure fluid in a conduit k passes through an opening i in the casing g to the spaces between the longitudinal packing lamellµ h. The pressure of the controlled fluid acting on a diaphragm m controls a valve n and so regulates the pressure of the fluid entering the packing. A web l which closes the opening i at the transit of the port c prevents the entry of appreciable quantities of pressure fluid to the inside of the valve. In modifications, pressure fluid is introduced between the spaces of the lamellµ of either or both end packings f, f<1>. Pressure fluid may be separately introduced in all three packings, separate pressure regulators being used.
Patent GB-1492340-A (GB)
Title: Deflection compensation for rotors of rotary fluid machines
IPC: F02B53/00
Filed: 1976-06-17
Abstract: 1492340 Rotary positive displacement fluid machines CATERPILLAR TRACTOR CO 17 June 1976 [28 Oct 1975] 25191/76 Heading F1F In a rotary positive displacement fluid machine (of the trochoidal or, as shown, nutating disc-type) the piston 34 is rotatably mounted, within a  chamber 12, on an offset portion 24 on a shaft 22, whose axis is parallel to, but slightly displaced from the axis of chamber 12 towards the high-pressure zone of the machine, so that when in use, deflection of the piston 34 and shaft 22 towards the lowpressure side of the machine may occur without the piston coming into contact with the chamber walls 14, 16, 18. As shown the machine is an I.C. engine, the piston having recesses 42 to form combustion chambers.
Patent GB-406602-A (GB)
Title: Improvements in the manufacture of nitrogenous fertilizers by the destructive distillation of organic material
IPC: C05C3/00
Filed: 1933-09-12
Abstract: 406,602. Destructive distillation of vegetable materials. MATIGNON, C., 3, Rue Gay Lussac, Paris, and KACHKAROFF, P., 8, Rue Villa Le Mesnil, Chatillon-sur- Bagneux, both in France. Sept. 12, 1933, No. 25232. Convention date, Sept. 12, 1932. [Classes 55 (i) and 55 (ii).] Organic materials of vegetable origin such as straw, wood, cotton waste, leaves, peat, lignin, and lignites, are distilled in an atmosphere of ammonia up to 400‹ C. to give a solid or tarry residue, suitable as a fertilizer, nitrogenous oils and a gaseous mixture containing carbon dioxide, methane and gaseous amines. In examples, sawdust and peat are distilled respectively, the former at temperatures of 250‹-310‹ C. for 4¢ hours, the latter firstly at a temperature of 170‹ C. for 4¢ hours and then at 170‹-300‹ C. for 3 hours. The solid residues contain from 8 to 12 per cent of nitrogen.
Patent GB-138854-A (GB)
Title: Improvements in electric push-button switches
IPC: H01H13/56
Filed: 1919-10-15
Abstract: 138,854. Cesaro, A. C. di. Feb. 8, 1919, [Convention date]. Switches, quick-break.-A press-button-operated switch, of the kind in which the first actuation of the button closes the switch which is retained closed against a quick-action spring return and the second actuation releases the switch, comprises a spring-arm contact-member co-operating with a bunch of fixed spring contact plates having hooked formations and guiding surfaces between which the contact member moves in a simisoidal manner. In the arrangement shown in Figs. 1 and 7, the fixed contact 1 consists of three plates 1<1>, 1<11>, 1<111> fixed together at one end to a central wall on the switch base and with their free ends shaped and relatively located as shown in Fig. 7. The movable contact member 2 is formed by the free end of a wire spring fixed to the wall. Fig. II shows the position that the contact member assumes in contact with and locked by the hook on the contact plate 1<1> as a result of actuating and releasing the push-button which bears directly on the contact member. At the second actuation of the button, the contact member is guided by the contact plate 1<11> to the other side of the plate 1<111> and, when the button is released, the contact-member springs back to its original ' off ' position. The straight spring contact arm may be replaced by a volute spring arm or may be duplicated to constitute a double pole switch. The arrangement of five contact plates constituting one contact and another separate spring plate contact 10 is shown in Fig. 5 to form a two-way switch for lighting one or both of two groups of lamps. With the first actuation and release of the button, the contact-member 2 is locked by its engagement with the turnedover end of the contact strip 1<1> and laterally moves the other strips so that the strip 1<1111> engages the second fixed contact 10, and both circuits are closed in parallel. On the second actuation and release the button, the strip 1<1111> is released and the second circuit opened. On a third actuation and release, the contact member assumes its original off position.
Patent GB-937764-A (GB)
Title: Improvements in and relating to containers for radio-active isotopes
IPC: G21F5/08
Filed: 1960-07-20
Abstract: 937,764. Shielded containers for radio-active material. H. C. PONTET. Oct. 12, 1961 [July 20, 1960], No. 25355/60. Class 39 (4). A container for a radio-active isotope comprises an outer cylindrical casing 1 closed at its lower end and receiving an inner casing 2 having an opening at its upper end into which a rod 3 carrying the isotope may be screwed. The casing 1 may comprise an aluminium casting and the casing 2 may be of brass lined with lead. To prevent damage to the container or rod due to dropping, the casing 1 has a series of ribs 6 extending laterally from the side walls and also longitudinally at 7, 8 from the casing ends. Unauthorized removal of the rod 3 is prevented by a hasp and staple 4, 5. Openings 9 in the ribs 6 may receive carrying straps. In a modification the ribs are replaced by studs.
Patent GB-459243-A (GB)
Title: Improvements in and connected with electric immersion heating apparatus
IPC: H05B3/06
Filed: 1935-09-13
Abstract: 459,243. Electric immersion heaters. BAKER, F. N. R., The Dell, Coombe Road, Croydon, and WHITEHEAD, C. F., 53, Crest Road, South Croydon. Sept. 13, 1935, No. 25487. [Class 39 (iii)] The hole in the tank is surrounded by inner and outer frames 1, 4, clamped thereto by screws or studs 3, and the immersion heaters 10 are mounted on a cover plate 8 secured detachably to the outer frame. The studs 3 have extensions 7 for securing the cover plate. The cover plate and the ends of the heaters are arranged in a compartment formed by a sleeve 16 fitting between the outer frame and a ring 14 mounted in the outer wall 12 and secured to the outer frame by screws 18. A door plate 15 is secured to the ring by screws.
Patent GB-968637-A (GB)
Title: Automatic clutch mechanism for vehicles
Inventor: CENEFELS JUAN FOIX
IPC: F16D23/12
Filed: 1962-07-03
Abstract: 968,637. Clutch control. FOIX Y CIA SOC. REGULAR COLECTIVA. July 3, 1962, No. 25521/62. Heading F2L. In an automatic clutch control system a spring 14 which normally overrides the clutch engaging springs 4 is rendered inoperative by an engine-driven servomotor 17 at a predetermined speed. As shown the servomotor is driven by the fan belt and a pulley 18, and is connected by a link 16 to a double-armed lever 13, 11 mounted on the shaft 10 of the fork 9 operating the clutch release collar 7. The arm 11 is connected to the clutch pedal by a link 12, and the arm 13 may also be connected by a link 23 to the parking brake lever 24 to hold the clutch engaged and unload the springs 4 while the brake is applied. The servomotor 17 may be rendered ineffective by an electric switch 20 operated by a knob 22 on the end of the gear change lever 21.
Patent GB-173570-A (GB)
Title: Improvements in or relating to manufacture of pneumatic tyre casings
IPC: B29D30/46
Filed: 1920-09-04
Abstract: 173,570. Dunlop Rubber Co., Ltd., and Worthing, J. V. Sept. 4, 1920. Traversing.cutter type for cutting rectilinearly; guillotine type.-Relates to machines for cutting strips from webs of fabric in the manufacture of pneumatic-tyre casings, and consists in means for conveying the cut strips from the machine to a position for storing &c. The device consists of an endless cable over which the strips hang, and, in the case of machines cutting on the bias, a series of secondary cables is provided situated in a plane parallel to that of the cutting-knife and adapted to guide the strip to the main cable. In the form shown in Figs. 1 and 2, wherein the fabric A is cut on the bias, the secondary conveyer consists of a series of cables D<1> carried on pulleys D<2>, D<2x> respectively secured to and loose on shafts D<3>, D<3x> which are arranged at the same inclination as the cutter C, the shaft D<3> being driven from a shaft D<8> of the machine bv chain gearing D', an horizontal countershaft D<6> and belt gearing D'. Also carried by the shaft D' are stripping rollers D<10> which guide the strips from the deflecting-plates D<9> on to the conveyer cables D'. Situated between and below the conveyers D<1> are plates D" which serve to support the strips. The main conveyer E is composed of a cable E<1> supported by pulleys E<2>, E<3>, E<4>, E<5> and provided with tensioning-means E<6> and so situated that the strips fall across it as shown in Fig. 1, the overhanging portions being separated by a guide E'. In a modification, the cable may be replaced by one or more belts at such a distance apart as to support the severed strips. When applied to a machine, such as a guillotine, for making horizontal cuts, the secondary conveyers are dispensed with and the main conveyer passes under the machine to receive the cut pieces direct therefrom. In a second modification applicable to either of the above types of machine, conveyer belts are driven by independent means such as an. electric motor, supporting and tensioning devices. for the belts being provided.
Patent GB-244873-A (GB)
Title: Improvements in driving gear for the propellers and engine valve gear of aircraft
IPC: B64D27/00
Filed: 1924-10-28
Abstract: 244,873. Trnka, J. Oct. 28, 1924. Propelling.-The carrier b of planet pinions d, driven from a sun wheel c on the crank shaft of a radial-cylinder aircraft engine, carries or constitutes the hub of the propeller and is provided with a flange f carrying the valve cams h. In the example described, the propeller and cams are arranged to rotate at one-fourth the speed of the crank shaft, there being two cam projections at 180‹ apart.