baber/WOPTO huggingface dataset:
Patent GB-662082-A (GB)
Title: Improvements in or relating to steam raising plant and steam power plants
IPC: F22B37/42
Filed: 1949-05-04
Abstract: 662,082. Automatic control systems for solid content in steam. BAKER, L. May 3. 1950 [May 4, 1949], No. 11843/49. Class 38 (iv). In a steam raising plant comprising a boiler 1 having a superheater 2, a sample of steam is bled off via a pipe 4 and condensed in condenser 5, the electrical conductivity of the condensate being tested by a device 7. The device 7 is adapted to control motors 9, 10, 11 to operate valves 12, 13, 14 of the plant for controlling the oil fuel supply to, the feed water supply to, and the steam discharge from, the boiler if the conductivity of the condensate, which is a function of the solid content in the steam exceeds a predetermined value. The testing device 7 may be capable of adjustment to enable the reading of the testing device at which the motors operate to be varied in accordance with the solid content of the boiler water itself.
Patent GB-1280299-A (GB)
Title: Improvements in synchronizing mechanisms for power transmissions
Inventor: EASTWOOD THOMAS
IPC: F16D23/06
Filed: 1969-03-06
Abstract: 1280299 Positive clutches DAVID BROWN TRACTORS Ltd 4 March 1970 [6 March 1969] 11914/69 Heading F2C In a double or, Figs. 3 and 4 (not shown), single synchronizing clutch comprising a sliding clutch hub 23 having internal teeth adapted to connect clutch teeth 12, 15 respectively fast with gears 11, 14 to driving teeth 19, 20 on shaft 10, such engagement is synchronized by cone friction clutches 13, 29 and 16, 30 between the gears and balk rings fast with three balk pins 26 longitudinally centralized in apertures in the clutch hub by individual springs 34, 35 in slots 33 in the hub and engaging behind the balking shoulders of the pins to move the pins with the hub. Again, Figs. 3 and 4 (not shown), the gear 11 only is provided together with springs 34, the opposite ends of pins 26 being fast with a flange (37) urged axially away from the hub by a Bellville spring (39) or a helical spring (40) acting between the flange and the teeth 19.
Patent GB-702661-A (GB)
Title: Improvements in or relating to the securing of broom handles to broom heads
IPC: B25G3/30
Filed: 1949-05-05
Abstract: 702,661. Broom handles. THOMPSON, W. L. June 19, 1950 [May 5, 1949], No. 11993/49. Class 61 A hollow cr solid handle is secured to a broom by providing at one or both ends of the handle a tapered screw thread portion which is inserted into a non-threaded cylindrical socket in the head of the broom. The socket is smaller in diameter than the largest diameter of the screw-threaded portion of the handle and the screw is made of material as hard or harder than that of the broom head. As shown, a tubular handle 3 has secured to one end thereof a separate member 5 having a tapered and screw-threaded portion 4. The other end of the handle is fitted with a detachable resilient cap 7. A branch 8 with hose pipe connection 9 is provided. In a modification the branch 8 is dispensed with and the end of the handle to which the cap 7 is fitted is adapted to receive a hose pipe connection. In another modification, a solid handle has a short length at one end tapered and screw threaded.
Patent GB-737711-A (GB)
Title: Diplexer and sideband filter arrangement
IPC: H01P1/213
Filed: 1953-04-30
Abstract: 737,711. Automatic frequency and temperature control systems. RADIO CORPORATION OF AMERICA. April 30,1953 [May 23, 1952], No. 12021/53. Class 38 (4). [Also in Groups XL (b) and XL (c)] In a diplexer and sideband filter arrangement (see Groups XL (b) and XXXV) the reflection filters may be tuned automatically. In the modification shown in Fig. 5 the diplexer and filter unit is made gas-tight and is provided with a port 91 to enable pressure or suction to be applied by means of a reversible pump 99. Samples of the signals from the sound transmitter 41 and resistor 45 are fed by lines 94, 96 respectively to a phase detector 95. The output from the detector is amplified at 97 and fed to a motor 98 which drives the reversible pump. In a modification (Fig. 5a, not shown), the motor may operate a valve connected to a compressed gas supply. The pressure in the filter affects the tuning due to the change in (a) the mechanical size of the filter, and (b) the dielectric constant of the gas. In a further modification, Fig. 7, the tuning may be controlled by temperature control of the filter. A heater wire 101 is wrapped around the filter. One or more thermocouples 102 are placed in thermal contact with the filter, and are connected to the grid of a thyratron 103. Thus as the temperature increases, the anode current is decreased and the heating effect of the wire 101 is decreased and vice versa. In a further modification, Fig. 8, the output from the detector 95 operates a motor 98 to move a piston 109 through a rack-and-pinion 105, 107. Movement of the piston causes tuning slugs 61 to be moved into the filters by hydraulically operated pistons 113. The slugs are normally moved towards each other by springs (not shown) or by the pressure in the diplexer unit. Specification 619,914, [Group XL (b)], is referred to.
Patent GB-231607-A (GB)
Title: Improvements in and relating to sheet material
IPC: B27D1/00
Filed: 1924-02-04
Abstract: 231,607. Elmendorf, A. Feb. 4, 1924. Veneering.-Metal sheets of a thickness of the order of 0.006 to 0.05 of a millimetre are led from rolls 9, 9a over a steel roller 6, where overlapping parts are removed by knives 7<a>, and the strips are then led between rollers 3, 4 together with a sheet of plywood, pulp board or the like, coated on one side with glue. An alternative form of trimming knife which co-operates with a groove in the roller 6 may be used. The covered sheets are available for use in vehicle bodies or outdoor signs.
Patent GB-500842-A (GB)
Title: Improvements in television transmitting systems
IPC: H04N5/16
Filed: 1938-04-22
Abstract: 500,842. Television transmitters. HAZELTINE CORPORATION. April 22, 1938, No. 12079. Convention date, May 27, 1937. [Class 40 (iii)] Picture signals are developed in the cathode ray tube 11 without any direct-current components and are applied to the input of valve 29 whose bias is controlled by cell 23, viewing the whole scene, to add the direct current components; pulses from 14 are also applied to the suppressor grid of valve 29 to render it nonconducting during fly-back periods, so that gapped picture signals comprising directcurrent components occur at the output of valve 29. A main generator 20 controls the scanning oscillators 12, 13, the generator 14 and the synchronizing signal generator 17. The impulses from 14 are preferably applied to the control-grid of the cathode ray tube 11 to wipe out the return lines. Synchronizing signals from 17 are added to the signal from valve 29 at 30, the mixed signal then being modulated onto a carrier for transmission. Specification 450,675 is referred to.
Patent GB-527863-A (GB)
Title: A process for the recovery of flue ash with a high concentration of metals or metallic compounds
IPC: C22B7/02
Filed: 1939-04-21
Abstract: 527,863. Returning fuel residues to furnaces. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. April 21, 1939, No. 12087. Convention date, May 14, 1938. [Class 51 (i)] [Also in Group II] Flue ash deposited from gases formed in the combustion of fuels containing metals or metal compounds, such as vanadium or vanadium compounds, is treated to obtain a product with a high concentration of metals or compounds by separating into coarser and finer portions; the values are concentrated in the finer portion, and the coarser portion is recirculated to a combustion space. Preferably 90-95 per cent. of the ash is separated as the coarser portion. The whole of the ash may be separated from the gases and then divided into coarser and finer portions, or preferably the coarser and finer portions are collected from the gases separately. The coarser ash may be ground before returning it for further combustion. Preferably, all the ash is separated at least once as coarse ash, and the fuel may be atomized or ground to such an extent that ash particles of a uniform size are obtained. Separation may be effected by cyclones, filters, or electric separators, or the coarse ash may be separated by means of an oil filter or coke bed, or the gases may be passed through a bunker to deposit the coarse ash directly on the fuel.
Patent GB-741498-A (GB)
Title: Improvements in or relating to a glutathione composition for parenteral injection and process of preparing such composition
IPC: A61K9/00
Filed: 1953-05-01
Abstract: The invention comprises a stable pyrogenfree mono alkali metal salt of glutathione having at most 6 per cent by weight of water of hydration; such salt has a pH in aqueous solution of 5.5-6.8, preferably 6.0-6.3.  The salt is made by passing an aqueous solution of glutathione through a cation exchange resin to remove traces of heavy metals, adding alkali to bring the pH within the above range, treating the solution with activated carbon to remove pyrogens, filtering off the carbon, passing the filtrate through a bacterial filter and concentrating it to a dry powder, e.g. by lyophilization or precipitation with alcohol.  The last step may be carried out in such a way as to form a dry porous plug in a vial.  A typical specimen of mono-sodium glutathione prepared above has N 11.8-12.8 (e.g. 12.0), S 9.0-9.8 (e.g. 9.2), Na 6.0-7.3 (e.g. 6.9) parts by weight of non-aqueous components, N/S ratio 1.30-1.32 and water of hydration 3.6 per cent.  The step of removing pyrogens is preferably carried out by adding 5-20 per cent of activated carbon and stirring at room temperature for 15-60 minutes.  In the examples: (1) 100 g. of glutathione are dissolved in 500 mol. of distilled water at 30 DEG C. and passed through a cation exchange resin; sodium hydroxide is added to pH 6.0, 15.g. of activated carbon stirred in for 20 minutes, the mixture filtered, the filtrate passed through a bacterial filter, sterile pyrogen-free water added to bring the concentration of glutathione to 150 mg./mol., the solution frozen and lyophilized in the vial and capped under sterile conditions; (2) 1 kg. of glutathione is dissolved in 4.5 1. of water, passed through a cation exchange resin, 20 per cent caustic soda added, with cooling, to pH 6.1, 150 g. of activated carbon added, stirred and filtered; the filtrate is passed through a bacterial filter and added to 100 l. of de-pyrogenized anhydrous alcohol; the resultant precipitate is filtered off and dried.  The alkali used may be carbonate instead of hydroxide.  The potassium, ammonium and lithium salts may be prepared similarly.
Patent GB-948340-A (GB)
Title: Improvements in or relating to the manufacture of polyurethane materials
Inventor: STEPHENSON KENNETH
IPC: C08G18/18
Filed: 1960-04-06
Abstract: A mixture for reaction with an organic polyisocyanate to produce cellular polyurethanes under conditions avioding the use of heat comprises a hydroxyl-ended polyether and a tertiary amine selected from N1N1 dimethyl benzylamine N,N,N1,N1, tetramethyl hexamethylene diamine, N methyl morpholine and N methyl pyrrolidine. A list of optional additives is given.
Patent GB-1501464-A (GB)
Title: Liquid development of electrostatic charge patterns
IPC: G03G15/10
Filed: 1975-03-24
Abstract: 1501464 Developing apparatus XEROX CORP 24 March 1975 12172/75 Heading B2L Patterned applicator roller 26 is swept by doctor blade 28, which it sets into vibration, and the blade 28 has a complex modulus of elasticity which varies with temperature to compensate for the variation with temperature of the viscosity of the liquid electrostatic developer applied. The blade 28 may be of a silicone rubber, acrylonitrile - butadiene rubber or a polyurethane rubber.
Patent GB-167007-A (GB)
Title: Alarm whistle for mechanically driven vehicles
IPC: B60Q5/00
Filed: 1920-05-03
Abstract: 167,007. Hummel, B. May 3, 1920. Fluid supply for whistles.-Whistle alarms for motor-vehicles are operated by gas taken directly from the cylinders. Two or more whistles of different pitch are somewhat in unison. The casing a receives the whistles f, and is fitted with a central valve i and a compression cock g. A screw-threaded nipple a<1> is used to connect the casing to a suitable aperture in the engine cylinder. The ports leading to the whistles communicate with the channel b above the valve-seating c; the port from the compression cock enters the channel b below the seating. The valve stem is operated by a Bowden wire n and a lever k pivoted to a supporting-frame l, which is free to turn into a position to suit the direction from which the wire n proceeds.
Patent GB-795354-A (GB)
Title: Improvements in or relating to methods of forming a deposit of powdered material on a support
Inventor: NIXON RALPH DESMOND
IPC: H01J9/227
Filed: 1955-04-28
Abstract: 795,354. Ornamenting. GENERAL ELECTRIC CO., Ltd. April 11, 1956 [April 28, 1955], No. 12280/55. Drawings to Specification. Class 93 [Also in Group XL(a)] Multi-colour phosphor screens in dot or strip form are produced by a method in which a deposited layer of one phosphor, e.g. blue Zn S/Ag and a binder, is covered with a photo-sensitive resist layer which is exposed through, the appropriate dot or line negative, the unexposed resist washed away and the underlying phosphor-binder layer at these unexposed parts removed by solvent or chemical action, e.g. polyethylene glycol. A further layer of phosphorbinder, .e.g. a green phopshor such as willemite, is applied to the screen and covered with a layer of resist and exposed and treated as for the first layer, and is followed by a similar step for the red phosphor, e.g. Zn Cd S/Ag or manganeseactivated zinc phosphate. The phosphor layers may have additional protective layers of nitro cellulose. The resist may be amonium bichromate and fish glue, or dichromated gum or polyvinyl alcohol. The hardened resist material may then be removed by dilute potassium hydroxide and the screen baked to disperse the nitro cellulose binder.
Patent GB-257974-A (GB)
Title: Improvements relating to the cooling of dynamo electric and other machines
IPC: H02K9/19
Filed: 1925-05-12
Abstract: 257,974. Enclosed Motor Co., Ltd., Gilbert, N. W., Jacoby, H. C. E., and Jabet, A. E. May 12, 1925. Armatures, cooling.-To provide for cooling the rotor of a machine, the shaft is formed with intake and delivery passages d, e for cooling-fluid in connection with a pump, and a recess h is provided in the spider or equivalent part of the rotor such that when it is secured to the shaft an annular chamber is formed extending substantially throughout the length of the rotor, and the chamber is connected by passages f, g with the passages d, e. The collar b' and the ring b<3> between which the rotor core c is clamped may also be hollow and in liquid-flow connection with the main chamber h, and be connected together by passages passing through the core c. To prevent escape of liquid from the rotor, a caulking-ring may be forced into a dovetail groove j. The shaft is extended beyond housings m in which the bearings are located, and into a packing sleeve o, Fig. 1, carrying a combined gland ring and pipe union p. Drainage holes o<3> are provided in the sleeve o. Alternatively, the packing sleeve o, Fig. 2, may be carried by a bracket and is formed at the end o<3> as a hose-coupling and carries a packing gland at the other end.
Patent GB-1129405-A (GB)
Title: Improvements in or relating to heat transfer plates
Inventor: WRIGHT FELIX WILLIAM
IPC: F28F3/08
Filed: 1966-03-21
Abstract: 1,129,405. Plate heat exchangers. A.P.V. CO. Ltd. 19 Jan., 1967 [21 March, 1966], No. 12326/66. Heading F4S. A heat exchange plate includes a gasket recess 2 which receives a discontinuous resilient gasket 3 having at least one pair of abutting ends 4, or each side wall of the gasket recess adjacent one or both abutting ends 4 being formed with a protrusion 5 to constrict the gasket transversely to the recess so that the abutting gasket ends are driven firmly together. The recess 2 (Figs. 2 to 8, not shown), may be rectangular or semicircular in cross-section, whilst the protrusions may be angular, as shown, or curved in plan, extend all or only part way down the side walls of the recess, and may be parallel to or form an acute angle with the side walls of the recess.
Patent GB-1359852-A (GB)
Title: Gaming machines
IPC: G07F17/34
Filed: 1972-02-17
Abstract: 1359852 Game apparatus BELL-FRUIT MFG CO Ltd 17 Feb 1972 [30 April 1971] 12326/71 Heading A6H [Also in Division G4] A gaming machine comprises display means which presents a display of symbols and which operates to change the display in a random manner so as to present successive new displays of symbols, recording means which keeps a record of all or particular symbols occurring in said successive displays, and prize-awarding means which responds according to the symbols recorded during said successive displays and awards prizes for prize-winning combinations of recorded symbols. In the emodiment described the display means comprises, "fruit-machine" reels R1, R2 and R3 bearing numbers around their peripheries, and the recording means includes a display in the form of a "Bingo" card C the numbers on which are illuminated if, after rotation and stopping of the reels, the corresponding numbers are displayed at the centre line of window W. All or only some of the numbers on the reels may appear on the card C. The insertion of a coin in slot S may automatically initiate a game and cause a predetermined number of successive displays. Alternatively after the initial insertion of a coin each successive display may require to be initiated by the player, or the player may have to insert a separate coin for each successive display. Buttons B1, B2 and B3 are provided for optional use by the player to index the corresponding reel by one step, the new number indicated at the centre of window W being illuminated, if present, on card C. The lowermost row of numbers in window W may be used in place of the centre row to indicate numbers which are to be illuminated thus allowing the player to see the next two numbers on each reel. The buttons can only be used twice during a game and their use may be made available to a player on a random basis only. Prizes are awarded for complete rows or columns of numbers on the card C, and may also be awarded for certain combinations of symbols presented at window W in each successive display.
Patent GB-827055-A (GB)
Title: Improvements in means for securing luggage racks to the roofs of vehicles
IPC: B60R9/058
Filed: 1957-04-16
Abstract: 827,055. Luggage racks for vehicles. AUSTER Ltd., and SMALL, W. W. April 14, 1958 [April 16, 1957], No. 12344/57. Class 103(2) [Also in Group XXV] A luggage rack is secured to a car roof by support arms 3, Fig. 3, each of which carries a housing 6 secured to an arm and a rubber buffer mounted on a ballstud 5 to seat on the roof. A toothed pinion 10 on a sleeve 10a, Fig. 5, is carried on an axle 9 mounted across the housing, which axle has one end formed with a square head 12 to receive a key for rotating the pinion 10 while the other end carries a securing nut 17. The axle also carries a ratchet wheel 13 on the sleeve 10a which co-operates with a pawl .14 mounted on a pin 15 held in tension by a pin 16 in the side of the housing. A flexible sheetmetal strap 18 having a series of ribs or teeth 19 meshes with the teeth of the pinion 10 and is drawn through the housing when the pinion is rotated. The outer end of the strap 18 has a hook 20 riveted thereto for engagement beneath the gutter on the car roof. A worm may replace the pinion to engage the teeth on the strap. Specifications 827,053 and 827,054 are referred to.
Patent GB-1217987-A (GB)
Title: Power operated swinging drawbar assembly
IPC: A01B59/042
Filed: 1969-03-10
Abstract: 1,217,987. Power operated swinging drawbar. DEERE & CO. 10 March, 1969 [11 March, 1968], No. 12479/69. Heading A1P. A power operated swinging draw-bar for agricultural tractors includes a hydraulic actuator 34 connected to the draw-bar to swing it from side to side. The draw-bar 10 is pivotally mounted on the draw-bar support frame at 27 and is supported by two vertically spaced arcuate members 13 and 14. Two rollers 29 and 30, mounted on the draw-bar by brackets 31 and 32 whose vertical dimension is greater than the distance between the members 13 and 14, allow the draw-bar to swing freely in its support. The hydraulic actuator 34 is pivotally mounted on a leg depending from the side frame member 16 by a L-shaped link 33. The actuator rod 42 is connected to the draw-bar 10 by a L-shaped link 39, the vertically disposed portion of which is rigidly attached to the actuator 42 and the horizontally disposed portion of which is pivotally connected to a bracket 40 which is slideably mounted on the draw-bar 10. A portion of the supporting member 17 is vertically offset from the remainder to allow the hydraulic actuator to swing the draw-bar from one side (as in Fig. 1) to the other. The draw-bar is longitudinally adjustable on the support frame by selectively fixing the pivot pin 27 in any of the holes 28.
Patent GB-1464919-A (GB)
Title: Single sheet document feeder
IPC: B65H3/52
Filed: 1974-03-20
Abstract: 1464919 Separating and feeding sheets ADDRESSOGRAPH MULTIGRAPH CORP 20 March 1974 [28 March 1973] 12484/74 Heading B8R Sheets are separated one by one from the bottom of a pile on table 10 by a pivoted separator 30, which retains and pushes back all but the lowest sheet when caused to pivot by movement of the pile by belt 18. Preferably the belt 18 and the surface of the seaprator have coefficients of friction against the sheets higher than the sheets have against one another, the belt 18 is moved intermittently, and the separator returns to its vertical position between movements.
Patent GB-216863-A (GB)
Title: Grating
IPC: F23H13/00
Filed: 1924-05-21
Abstract: 216,863. Pattison, W. L. May 28, 1923, [Convention date]. Gratings.-A floor grating formed of bars placed on edge comprises deep side bars 1, intermediate narrow bars 4, and cross-bars 8 connecting the side bars and supporting the lower edges of the intermediate bars. The side bars are notched at 2 to rest on the floor beams and the intermediate bars are connected to the side. bars and to one another by narrow zig-zag bars 6 the end portions 7 of which rest on the cross-bars 8. Additional cross-bars 9 may be provided.
Patent GB-1031332-A (GB)
Title: Circuit arrangement for route search in geographical railway signalling systems
IPC: B61L19/06
Filed: 1964-03-25
Abstract: 1,031,332. Route setting. STANDARD TELEPHONES & CABLES Ltd. March 25, 1964 [March 30, 1963], No. 12587/64. Heading B7N. In a route setting system for railways wherein relay sets associated with the various track elements are connected in circuits which simulate the layout of the track system, two route search circuits are provided, one of which includes the search relays for the points trailed in one direction of movement and the other the search relays for the points trailed in the opposite direction of movement. Assuming a route from the top left to the lower right tracks of the track arrangement shown in the Figure operation of the route entrance and exit controls applies a route search signal from left to right in the upper circuit and from right to left in the lower. In the upper circuit relay 2R is energized and in the lower circuit relay 1R is energized to set the two sets of points to reverse and contacts 1R2 and 2R2 of these relays are opened and contacts 1R1 and 2R1 are closed whereby the search signals are extended via the circuit corresponding to the cross-over track only.