baber/WOPTO huggingface dataset:
Patent GB-120076-A (GB)
Title: Improved Apparatus for Maintaining Proportional Delivery of Gas and Air to Gas-fired Furnaces.
Inventor: KEITH JAMES
IPC: G05D11/00
Filed: 1917-10-20
Abstract: 120,076. Keith, J., and Keith, G. Oct. 20. 1917. Fluid-actuated valves.- Apparatus for maintaining proportional delivery of gas and air to a furnace consists of two connected diaphragms E, F, Fig. 1, controlling a gas valve L. The outer diaphragm chambers are connected by pipes e, f to the air pipe B at two points, one in front of and the other beyond the choke bore D, so that the valve L is affected by the difference between the pressures of the air at these points. The valve is affected also by variations of pressure in the gas pipe C, into which gas passes from the central chamber of the apparatus through the regulating-valve H. The leakage through the partition N where the diaphragm rod passes through it is not material. The part B' of the air pipe B may be coiled and heated by the furnace. In the modification shown in Fig. 2, the diaphragm E' is affected only by the difference of pressures in the air pipe B at the connexion e<1> and at the choke bore D<1>, and the diaphragm F<1> is affected only by the difference of pressures in the gas pipes C', C. The movement of the diaphragms E<1>, F<1> opens the valve L<5>, which allows gas to escape from the chamber L' faster than it enters through the leakage port L<4>. The pressure of the gas in the pipe C' then lifts the diaphragm valve L<1> from the seat L<2>. The flow of gas against the diaphra.gm F' then closes the valve L<5> and afterwards the valva L'. The inlet end of the pipe e<1> may be turned to face the stream, or placed otherwise.
Patent GB-870218-A (GB)
Title: Improvements in or relating to electric resistance welding apparatus
IPC: B23K11/093
Filed: 1959-05-05
Abstract: 870,218. Welding by pressure. KELLER & KNAPPICH MASCHINENFABRIK G.m.b.H. May 5, 1959 [Nov. 19, 1958], No. 15309/59. Class 83 (4). In an electric resistance-welding machine for circular seam welding in which an electrode head is urged against the surfaces to be welded and is rolled around the path of the weld, the electrode head has an annular end surface of the same diameter as that of the weld path and is adapted to be forcibly rotated about an axis oblique to the plane of the surfaces to be welded and a holder for a carrier for the electrode head and defining the axis of rotation of the electrode head is freely rotatable about an axis substantially coincident with the axis of the weld path. The truncated conical electrode 1 with its annular surface 2 has a Morse taper mounting in a shaft 6 keyed to and adjustable in a sleeve 7. Cooling water ducts 4 are provided in the electrode and one or two terminals 5 are connected to the electrode. The sleeve 7 is rotatable in bearings 12, 13 in the holder 14 connected to a sleeve 15 rotatable in bearings 16, 17 in a hollow shaft 18. The shaft 18 carries a piston 19 in a cylinder space 21 formed in a housing 23 and pressure may be applied to the piston to exert welding-pressure against the force of tensionsprings 22. A drive-shaft 25 is mounted within the sleeve 15 in a bearing 24, the lower end carrying the bevel gear 29 meshing with a bevel gear 30 carried on the sleeve 7 and the upper end keyed to a driven bevel-gear 27 mounted in the housing 23. The axis A of shaft 25 passes through the centre of the flanges d, e,. to be welded as does the axis B of the electrode. When the bevel gears are rotated and the piston is acted on by pressure the axis B describes a conical path about axis A and the surface 2 rolls around the flanges while counter-pressure is applied by lower electrode 31.
Patent GB-332672-A (GB)
Title: Improvements in or relating to means for controlling internal combustion engines
IPC: F02D9/00
Filed: 1929-05-16
Abstract: 332,672. Taylor, W. L., and Bargman, J. F. May 16, 1929. Regulating.-In aircraft engines having means for automatically varying the opening of the throttle valve in accordance with the discharge pressure of the supercharging-blower, means are provided whereby the hand-actuated throttle lever may be used to increase the supercharging pressure above the normal maximum, for example when taking off from the ground. Fig. 1 shows an auxiliary throttle 1 in the induction pipe controlled by a piston relay 2, the movements of which are controlled by a piston valve 3 actuated by an aneroid device 4. The valve 3 controls the connection of passages 9, 10 with the inlet and delivery sides of the blower at 12, 13, and has a longitudinal passage 14 which balances the valve and connects the casing 15 of the aneroid to the blower delivery. The setting of the valve 3 to determine the pressure at which the relay comes into action is adjusted manually by means of a ported sleeve 7 surrounding the valve, this sleeve being moved longitudinally by a screw 20 having an arm 16 connected to the hand lever 6 of the main throttle 5. After this throttle has been fully opened against a stop 50, further movement of the lever 6 in a gated slot is allowed against the pressure of a spring 17, and this further movement adjusts the screw 20. In a modification, the additional movement of the lever 6 takes place laterally. In another form of apparatus, the lever 6 during a part of its move. ment adjusts the regulation 25 of the aneroid device. In a modification, the piston valve itself may be adjusted.
Patent GB-376436-A (GB)
Title: Improvements in and relating to air cleaners
IPC: F02M35/024
Filed: 1931-05-26
Abstract: 376,436. Filtering gases. HEATHER, F., 38, Greenford Road, Sudbury Hill, Middlesex. May 26, 1931, No. 15412. [Class 8 (ii).] A filter is formed by horsehair, cotton wool, rubber sponge, &c. enclosed in an open helix q enclosed in a casing having peripheral inlet holes f and a central outlet c, e.g. to a carburetter. The helix .may be bent into an annulus as shown, or several helices forming short vertical pillars may be disposed in a ring within a casing.
Patent GB-568112-A (GB)
Title: Improvements in the manufacture of 3-carbethoxy-4-hydroxycoumarin
IPC: C07D311/46
Filed: 1943-09-21
Abstract: Pure 3-carbethoxy-4-hydroxy coumarin is prepared by preparing the sodium salt, adding to an aqueous solution thereof powdered sodium chloride, filtering the precipitated sodium salt and regenerating the desired pure compound by the addition of an acid. A preferred form of the invention is to treat the aqueous solution of the reaction product of sodio - malonic ester and 2 - acetoxybenzoyl chloride.  In examples: (1) powdered sodium chloride is added to a boiling aqueous solution of the sodium salt of 3-carbethoxy-4-hydroxy-coumarin.  The precipitated sodium salt is filtered and the free acid regenerated by concentrated hydrochloric acid; (2) sodio-malonic ester is reacted with 2-acetoxybenzoyl chloride in ether solution, the solid product is separated, dissolved in water, extracted with chloroform and then worked up as in example (1).
Patent GB-1031633-A (GB)
Title: Improvements in and relating to silver electrodes
IPC: H01M4/88
Filed: 1963-04-19
Abstract: A porous silver electrode for the electrochemical reduction of gaseous oxygen in a fuel cell or other primary battery is produced by forming a blank from an inorganic compound containing silver and oxygen, subjecting the blank to a temperature of at least 300 DEG C. for no more than 3 minutes to form a conductive silver layer on at least part of the surface of the blank, and electrochemically reducing the remainder of the inorganic compound to silver. Typically, dry washed silver carbonate, precipitated from a solution containin sodium bicarbonate and silver nitrate in decinormal proportions with or without the addition of 0.2 to 5 times its weight of ammonium carbonate, is pressed into tablets and heated, e.g. at 140 DEG C., to decompose the silver carbonate to silver oxide and to eliminate the ammonium carbonate if present, and the resulting porous silver oxide structure is then briefly irradiated with infra-red to produce a metallic silver surface, e.g. on one face.  Alternatively the blank may be heated with infra-red immediately after forming to form the silver layer.  The cooled electrode blank is then placed in a holder with an electrical contact engaging the silver surface and immersed as cathode in 1N KOH and electrolyzed at 1A/sq. dm. until the body of silver oxide was reduced to silver, optionally with oxygen being simultaneously blown through the blank.
Patent GB-876244-A (GB)
Title: Improvements relating to cookers
Inventor: BESTLER GERALD M
IPC: F24C15/18
Filed: 1958-05-14
Abstract: 876,244. Cooking ovens and hot plates; bracket stoves and drip trays. LAMB, C. C. May 14, 1958, No. 15493/58. Classes 39(3) and 126. A cooker comprises a cabinet oven 1, to one side of which is hinged a flap 5 supporting hot plates 6 or gas burners for use when 'the flap 5 is swung to a horizontal position and the flap when turned up to a vertical position fits into a recess 4b in one side of the oven backed by a heat-insulating wall 4c. The hot plates or burners 6 are controlled by knobs 10 on one side of the flap. These knobs have diametrical bar-like projections 11 and are positioned to co-operate with slots 13 in a strip 12 on the oven, so that the flap cannot be turned completely vertical unless all the control knobs 10 are in the "off" position- The heaters 6 are carried on a frame unit 5a which is hinged to the flap 5, so that the unit 5a may be swung up from the flap for cleaning or repairs. The edge of the flap 5 adjacent the hinge has a lip or rim 9 whereby, when the flap 5 is turned up, any fluid thereon will drain into a receptacle 8 removably supported in the bottom of the recess 4b to slide out therefrom endwise. When the heaters 6 are gas burners, gas is supplied thereto through a pipe 14 with flexible connections. The flap when horizontal may rest on a table and may carry adjustable and retractable supports, or the flap hinge could have stops to ensure the horizontal position.
Patent GB-1286384-A (GB)
Title: Improvements in paper coating compositions
Inventor: WAMSLEY R A
IPC: D21H19/58
Filed: 1970-04-02
Abstract: 1286384 Paper-coating compositions CELANESE COATINGS CO 2 April 1970 [11 April 1969] 15605/70 Heading C3P Compositions useful for forming glossy coatings on paper and like substrates comprise a suspension in an aqueous polymer emulsion of pigment in a quantity equal to 70-90% of the combined weight of pigment and polymer, at least 50% of the pigment weight being clay and the polymer being an interpolymer of 33-70% (by weight of the polymer) of one or more C 1 -C 4  alkyl (meth)acrylates, 20-50% of a vinyl aromatic compound, 0.5-2% of an α,#-ethylenically unsaturated carboxylic acid and 5-15% of acrylonitrile. In addition to the clay (particularly of the kaolin type) the pigment may comprise calcium carbonate, titanium dioxide, talc, blanc fixe, ochre, carbon black or aluminium powder. The pigment is preferably used dispersed in water with a dispersing aid, e.g. tetrasodium pyrophosphate. In the interpolymer the vinyl aromatic component may be styrene, vinyltoluene, α-methylstyrene or o-, m- or p-chloro or bromo-styrene; and the acid component may be acrylic, methacrylic, crotonic, itaconic, fumaric, maleic or mesaconic acid (or maleic anhydride). Aluminium stearate may also be present in the compositions. The pH of the compositions is suitably adjusted with a base, e.g. to 8 to 9.
Patent GB-579976-A (GB)
Title: Automatic control of compressor blow-off valves
IPC: F02D9/00
Filed: 1942-11-05
Abstract: 579,976. Fluid-pressure servomotors. ARMSTRONG SIDDELEY MOTORS, Ltd., CLARK, T., and FELLOWS, L. R. Nov. 5, 1942, No. 15667. [Class 135] [Also in Group XXVI] A leak-off valve 104 for preventing stalling of an axial flow compressor when running at low speeds is controlled automatically and is completely closed when the ratio of the pressures at two spaced points, in the compressor reaches a certain value. A bellows device 109 is subjected externally to the pressure of an early stage in the compressor and a spring-pressed piston 111 to that of a late stage. Motion of the piston 111 is transmitted to a lever 115 of a servomotor 121 operating the leak-off valve, 104 and the point of application of this motion to the lever 115 is controlled by the bellowsdevice which determines the angular position of the connecting rod 116.
Patent GB-1118372-A (GB)
Title: Improvements in cooking ovens
Inventor: ADAM ARTHUR JOHN
IPC: F24C14/02
Filed: 1966-04-07
Abstract: 1,118,372. Gas cooking ovens; controlling burners. R. & A. MAIN Ltd. 7 April, 1966, No. 15692/66. Headings F4T and F4W. The temperature of a cooking oven, heated by a gas burner 1, is controlled by a thermostat 18 which keeps the temperature in the range 150-550‹ F. for cooking and in the range 750- 950‹ F. for heat-cleaning of the oven walls. Waste gases pass through an opening 19 and duct 20 into a secondary duct 22 lined with refractory material 23 and heated to incandescence by a burner 25 disposed in an opening 24. The incandescent refractory 23 oxidizes the waste gases which then pass, through an opening 26, into an outlet duct 27, downstream of a Venturi constriction, so that cold air supplied by a fan 29 extracts and cools the cleaned gases. Gas supplied to burners 1 and 25 is regulated by a governor 44 and by mercury valves 37 and 38 actuated by pilot lights 33 and 34 acting on heat sensitive elements 35 and 35 respectively, glow coils 39 and 40 being used to ignite the pilot lights. The control system is such that either burner 1 alone, or burners 1 and 25 operate simultaneously, these conditions being achieved by using the appropriate setting on the oven control clock 45 and thermostat 18, the latter determining which glow coils and solenoid valves 31 and 32 are energized, these valves regulating the gass supply to the pilot lights. A heat-sensitive switch 42 closes at a pre-set temperature thus locking the oven door by causing a solenoid-operated bolt 43 to be shot.
Patent GB-260190-A (GB)
Title: Process for bleaching with hypochlorites
IPC: D06L4/21
Filed: 1926-06-22
Abstract: 260,190. Mond, A. L., (I. G. Farbenindustrie Akt.-Ges.). June 22, 1926. Bleaching, processes and materials for. - In bleaching by means of aqueous solutions of hypochlorites, nickel in the form of the metal or of its oxides or salts is employed as a catalyst. In place of nickel, metals other than those forming oxides soluble in caustic alkali may be used, e.g. copper and cobalt. The hypachlorite bath may be brought into contact with the nickel either in the presence or absence of the material to be bleached. When bleaching cellulose nickel impellers may be used or nickel plates suspended in the liquid or nickel salts to an extent corresponding to the presence of less than 0.5 per cent of nickel for a given amount of material to be bleached may be added. The efficiency of the process may be increased by the addition of hydroxyl ions which may be effected by increasing the alkalinitv of the bath. The favourable limits of temperature are 0‹ and 60‹. C. The discolouration of the material by black nickel oxide compounds may be removed by dilute acids or acid salts such as bisulphit'es or by continuing the reaction until the complete consumption of the hypochlorite.
Patent GB-1063671-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: CHATWIN FRANCIS REGINALD
IPC: F01N3/08
Filed: 1965-04-13
Abstract: 1,063,671. Exhaust manifolds. CHATWIN AGRICULTURAL MACHINES Ltd. June 10, 1965 [April 13, 1965], No. 15718/65. Heading F1B. An exhaust manifold is surrounded by heat insulating material so that the exhaust gases continue burning in the manifold to oxidize the carbon monoxide therein. The insulating material, e.g. asbestos, is contained within a casing 17 which is surrounded by another casing 21, the space between which may be evacuated. Nickel alloy heating coils 16 may be arranged in the exhaust ports, which coils may be heated electrically during the warming up period. The electric supply may be under the control of the engine choke valve. A fuel-air mixing device as described in Specification 748, 352 may be provided in the mixture intake passage.
Patent GB-1411298-A (GB)
Title: Packing assembly for a swivel
IPC: E21B33/12
Filed: 1973-04-03
Abstract: 1411298 Boring earth &c EXXON PRODUCTION RESEARCH CO 3 April 1973 15820/73 Heading E1 F [Also in Division F2] In a rotary swivel for use in drilling wells a packing assembly between two relatively rotatable drilling-fluid conducting members 19, 28 comprises a sleeve 29 secured to one member 19 and having an end wall 34 with an opening 35 therein, the second member 28 extending through the opening and having an end portion thereof disposed within the sleeve to define an annular space 37; and located within the space 37 a plastics ring 38 having an axially-extending recess, a ring 39 of soft bearing metal received in the recess, and one or more sealing rings 41. The ring 38 is preferably of PTFE and the ring 39 is of a metal having a Brinnel hardness of less than 100, e.g. bronze alloy or copper alloy. In the preferred swivel, two such assemblies are employed, the first 29 between goose-neck 19 and wash-pipe 28, and the second 30 between wash-pipe 28 and drill string 12, this enables the wash-pipe 28 in practice to remain stationary relative to either the goose-neck or drill string.
Patent GB-809609-A (GB)
Title: Improvements in or relating to the lagging of underground pipes
IPC: F16L59/02
Filed: 1956-05-22
Abstract: 809,609. Lagging underground pipes. STILLITE PRODUCTS Ltd., and DAWSON, J. W. Aug. 20, 1957 [May 22, 1956], No. 15831/56. Class 99(2). A method of lagging an underground pipe comprises mounting a plurality of preformed sections of heat insulating material about the pipe so as to enclose the pipe within an annulus of the material, placing a trough beneath the annulus and in spaced relationship thereto so that the sides of the trough extend upwardly beyond the top of the annulus, and pouring a hot thermoplastic material which is impervious to water into the trough so that the annulus of heat insulating material is completely surrounded by the thermoplastic material. The heat insulating material is preferably a fibrous material such as mineral wool for example that manufactured under the Registered Trade Mark " Stilag ". The thermoplastic material is preferably bitumen. The bitumen serves as a seal to unite the U-shaped lengths of trough to each other. Semi-circular reinforcing support members 9 may be mounted at spaced points about and below the trough 4, T-junctions and branches in the pipe may be dealt with by fabricating (e.g. on the side) appropriately shaped metal, plastic or wooden shuttering to receive the bitumen or other water impervious thermoplastic material. The trough may be of metal or a synthetic thermosetting resin.
Patent GB-162951-A (GB)
Title: Improvements in and connected with paper-carriages for typewriting machines
IPC: B41J17/00
Filed: 1920-06-11
Abstract: 162,951. Fairweather, W. C., (Underwood Typewriter Co.). June 11, 1920. Paper-carriages.-In web-manifolding arrangements of the kind described in Specification 23349/14 and comprising a platen roller separable from the feed-rollers to permit of straightening the webs, preparatory to retracting the interleaved carbon sheets, the platen roller and the line-spacing mechanism are mounted in a frame movable relatively to a second frame which carries the feedrollers and is mounted on the carriage; the second frame mav be connected to shift mechanism. As shown, the shaft 27 of the platen roller 17 is mounted in a rocking frame consisting of arms 30 secured to a rock-shaft 31 mounted in a frame 32 supporting the feed-rollers. Line-spacing mechanism, comprising a lever 22 operating a pawl 25 which co-operates with a ratchet-wheel 26 on the platen shaft, is mounted on one of the arms 30 of the rocking frame. The rocking frame is locked in the normal position by means of releasable latches 39, 40 which are pivoted on the frame 32 and engage pins 47, 48 on the rocking frame. The rocking frame can he moved upwards and backwards, to separate the platen roller from the feed-rollers, by pulling downwards a shelf 21 which is secured to a shaft 34 mounted in the frame 32 and provided with slotted arms 35 engaging the platen shaft. The arms have lost-motion connections 51 with the shaft. For retaining the rocking frame in the raised position, the slotted arms 35 are formed at the ends with parts 38 that are concentric with the shaft 34; further, one or both of the arms 35 are provided with pins 52 for engaging the latches. To permit of printing either capital or small letters, the frame 32 may be connected to shift mechanism. As shown, the frame is, in the known manner, mounted in hooks 62 on the carriage 12 and is provided with a roller running on a shift rail.
Patent GB-1466926-A (GB)
Title: Internal combustion engine ignition timer
IPC: F02P5/10
Filed: 1974-04-10
Abstract: 1466926 Timing ignition NISSAN MOTOR CO Ltd 10 April 1974 [13 April 1973] 15864/74 Heading F1B An ignition timer for use with an ignition system of an internal combustion engine (not shown) which includes a breaker cam driven by the engine, a rotatable disc disposed perpendicular to and rotatable about the axis of the breaker cam and a breaker assembly disposed on the disc, comprises means 16 for advancing the ignition timing to maintain a relatively high output power of the engine when the intake manifold vacuum is low and engine temperature sensing means (switch 24) which upon sensing temperatures below a predetermined level cancels the spark advance to prevent an increase of noxious exhaust compounds which increase in running a cold engine, the temperature sensing means re-establishing the spark advance upon completion of the warming up operation of the engine. As shown, when the engine has warmed up the temperature sensing switch 24 opens whereby the valve-member 77 is caused to abut against the valve seat portion 75 under the biasing force of the spring 78. Vacuum in the line 20a is introduced into the bore 77a of the valvemember 77 through an orifice 82. When the engine temperature is relatively low and the temperature responsive switch 24 is closed, the coil 71 of the valve 22 is energized and the vacuum in the chamber 16a is increased. This produces a reduction in the spark advance. In a modification, (not shown) there are two contact breakers, the second breaker being under control of a vacuum sensitive switch and a temperature sensitive switch and providing a further spark advance with respect to the first or conventional breaker. The timing is also centrifugally controlled.
Patent GB-570814-A (GB)
Title: Improvements relating to road vehicles
IPC: B62D23/00
Filed: 1943-09-28
Abstract: 570,814. Vehicle bodies. FEDDEN, SIR A. H. R., and DUNCAN, I. G. Sept. 28, 1943, No. 15915. [Class 108 (i)] Road vehicles comprising a pressed metal body m with removably-attached front and rear units q and t have the sides enclosed by detachable front and rear members a and b, each comprising a door panel and a wing enclosing a wheel ; front and rear panels f, g, conforming to the roof of the body m, are placed between the front and rear pairs of wings. A removable panel d is fitted to the rear members b and side bumpers x applied to the lower edges. Reinforcements n are applied to the top and bottom sills of the body. The tops of the doors c are inset and also the window panels w.
Patent GB-318464-A (GB)
Title: An improved spinning nozzle for use in the manufacture of artificial silk
IPC: D01D4/02
Filed: 1928-12-17
Abstract: 318,464. Ruzicka, C. Dec. 17, 1928. Divided on 317,108. No Patent granted (Scaling fee not paid). Apparatus for making filaments.-In a multiple spinning nozzle, each spinning element c is secured into the plate a<1> from the exterior, and is provided with a tapered passage c<2> the entrant end of which is of larger diameter than the exit end.