baber/WOPTO huggingface dataset:
Patent GB-1501054-A (GB)
Title: Control of an internal combustion engine
IPC: F02D41/14
Filed: 1976-03-08
Abstract: 1501054 Timing ignition NISSAN MOTOR CO Ltd 8 March 1976 [7 March 1975 24 March 1975] 09129/76 Heading F1B [Also in Division G3]  An I.C. spark ignition engine having means for controlling the air/fuel ratio in response to the concentration of at least one component of the exhaust gases so as to obtain maximum efficiency of a catalytic converter also has means for reducing the normal advancement of the spark when the engine temperature is below a pre-set value. The object is to increase the exhaust temperature at start-up. As shown, a diaphragm type vacuum advance device 106 is connected via an electromagnetic two-position valve 110 to induction tube 12 in one position of the valve and to atmosphere at a port 116 in the other, the valve being controlled at 130 according to whether the output of a temperature sensor 134 is above or below a reference value Su. In an alternative embodiment Fig. 6 (not shown) two separate centrifugally advanced make and break devices are provided in the ignition circuit, the degree of advance being different for each. One or the other is switched into use according to the engine temperature. The air/fuel ratio control system is of the type in which an electromagnetic valve 68 in an air bleed is pulsed open and shut at constant frequency for periods which are determined by combining the output of a sawtooth generator with the integrated positive or negative output of a device which compares the voltage produced by an exhaust gas sensor 74 with a reference value. This system may be inhibited when a choke valve 24 is closed, and possibly when the temperature is below the pre-set value.  The invention may alternatively be applied to a fuel injection engine and the exhaust temperature may be measured instead of that of the engine.
Patent GB-287873-A (GB)
Title: Improvements relating to engine cooling means for seaplanes
IPC: B64D33/10
Filed: 1928-03-26
Abstract: 287,873. Rohrbach Metall- Flugzeugbau Ges. March 28, 1927, [Convention date]. Addition to 280,539, [Class 29, Cooling &c.]. Leakage, removing. - A pump 33 for circulating cooling water to an aircraft radiator also acts as a bilge pump when necessary for emptying the float compartments. For this purpose cocks 35, 36 in the circulatory system are closed and pipes 32 provided with cocks 37 are connected to the suction side of the pump which discharges the water through a pipe 34 provided with a cock 38.
Patent GB-675410-A (GB)
Title: Improvements in or relating to vapour generating and superheating units
IPC: F22G5/04
Filed: 1950-04-14
Abstract: 675,410. Steam &c. superheaters. BABCOCK & WILCOX, Ltd. April 14, 1950 [April 16, 1949], No. 9194/50. Class 123(iii) In a steam &c. boiler comprising for example, a plurality of cyclone furnaces or burners 10 discharging through a secondary combustion chamber 22 into the lower end 27 of a radiant-heat chamber 28 which is lined with steamgenerating tubes 104...109 and, at its upper end, terminates in a horizontal convection gas pass which locates a secondary superheater 29 and reheater 30 and leads to a gas pass 32 locating a primary superheater 38 and economizer 40, the degree of superheat is regulated by withdrawing gases from the bottom 50 of the pass 32 by a fan 200 and directing them through a duct 63 to ports 66 in the said zone 27 of the chamber 28. The motor of the fan 200 may be controlled by a thermostat 212 in the superheater outlet pipe 171, and the ports 66 are preferably arranged to discharge the recirculated gases downwardly against the high temperature combustion gases flowing from the chamber 22 through an angularlydisposed tube screen 26. The chamber 22 is provided with a slag pool 21 having an opening 23 leading to a slag tank 24. Air for combustion is supplied to the cyclone furnaces &c. through ductwork 16 from air heaters 74, 73, 44 disposed in a continuation of the gas pass 32. Specification 552,747, [Group XII], is referred to.
Patent GB-794388-A (GB)
Title: Improvements in or relating to lathes and like machine tools for producing non-circular workpieces
IPC: B23B5/44
Filed: 1956-03-23
Abstract: 794,388. Copy - turning. FISCHER AKT.-GES., G. March 23, 1956 [March 24, 1955], No. 9202/56. Class 83 (3). [Also in Group XXIII] A method of forming a symmetrical non- circular profile with one or more lobes on rotating work comprises imparting a circular movement to a tool at a speed-ratio with the work according to the desired profile, the plane of the circular movement being inclined with respect to the axis of rotation of the work. A lathe for carrying out the method comprises a spindle 23, Fig. 5, with a work-holder 4 and a sprocket 20 driving, through a chain 21, a further sprocket 22. The latter is driven at a 3: 1 ratio to produce work 5 having three lobes. The sprocket 22 drives, through a flexible-shaft 19, a spindle 12 in a casing 11 secured for rotatable adjustment, to a top-slide 8. The latter is supported, also with rotatable adjustment, on a cross-slide 7 carried by a saddle 6 movable along the bed 1. The casing 11 carries a second spindle 12, and these two spindles are geared together by toothed wheels 14, 15, 14. The spindles 12 carry corresponding crank-pins 41 which move a tool-carrying link 16 in a circular path. The plane of circular-movement is inclined to the work-axis at an angle depending on the shape to be generated. The tool 17 at the end of the link 16 is brought into engagement with the work by adjusting the cross-slide. The saddle is then moved along the work to cut the profile. If tapered profiles are required, the slide 8 is set-over and the handle 10 turned to effect the longitudinal movement. The tool may be replaced by a grinding or milling- cutter. Boring. The lathe may be adapted for boring non-circular holes by using a tool 28, Fig. 8, on an arm and moved in a circular path by a pair of crank-pins 41. A tapered hole may be bored by feeding the slide 8 through the handle 10.
Patent GB-400511-A (GB)
Title: Improvements in and relating to web slitting and rewinding machines
IPC: B26D1/22
Filed: 1933-03-27
Abstract: 400,511. Paper and like slitting machines. VOITH, W., VOITH, H., and VOITH, H., (trading as VOITH, J. M.), Heidenheim, Brenz, Wurtemberg, Germany. March 27, 1933, No. 9227. Convention date, Feb. 4. [Class 31 (i).] A slitting and rewinding machine for paper and like webs has the cutters d<2> driven by a series of separate variable-speed motors d<1> which are carried by a single counterbalanced beam b<3> slidable vertically on the main frame by means of carriages B. The carriages also carry a guide roller b<1>, a loading roller b<2> which bears on the rewound roll F, and a separator E. The motors are adjusted laterally on the beam by means of a rack e<3> and pinion e<2> operated by a handle e<1>, and the cutters may be finely adjusted on the motor shafts by a bush d<1> screwed to a bush d<1> keyed to the shaft, the bush d<1 >being locked by nuts d<1>.
Patent GB-374186-A (GB)
Title: Manufacture of new dyestuffs
IPC: C09B33/10
Filed: 1931-03-27
Abstract: Azo dyes, soluble metal compounds of; azo dyes, forming on the material; regenerated celluloses, dyeing.--Azo dyestuffs containing metal, and applicable for dyeing cotton or regenerated cellulose fibres, are obtained (a) by treating with one or more agents yielding metal an azo dyestuff of the general formula <FORM:0374186/IV/1> in which R1 and R2 are aromatic residues, R1 carrying an OH group in o-position to the azo group and at least one of the residues R1 or R2 carrying a nitro group, or (b) by coupling (alkaline) in substance or on the fibre a metal compound of a dyestuff R1.NH2 --> (acid) 2 : 5 : 7-acid with the diazo compound of a base R2.NH2; if this base carries a group capable of combining with metal, the product obtained in substance may be treated in substance with an agent yielding metal. The following examples are specified.  (1) The dyestuff 5-nitro-2-aminophenol --> (acid) 2 : 5 : 7-aminonaphtholsulphonic acid (alkaline) \sM 5-nitro-2-aminophenol is chromed in the usual manner with a solution of chromium fluoride; the product gives uniform blue-green dyeings on regenerated cellulose fibres from a neutral or alkaline bath; if the alkaline-coupled 5-nitro-2-aminophenol is replaced by picramic acid green-grey dyeings, becoming grey-violet on after-treatment with agents yielding copper, are obtained.  (2) The dyestuff 5-nitro-2-aminophenol --> (acid) 2 : 5 : 7-aminonaphtholsulphonic acid (alkaline) \sM aniline is heated for some hours under reflux with a solution of chromium fluoride; the product gives uniform violet-black dyeings from an alkaline Glauber's salt bath.  (3) The chromium compound of the dyestuff 5 - nitro - 2 - aminophenol --> (acid) 2 : 5 : 7-aminonaphtholsulphonic acid is coupled (alkaline) with diazotized 4-nitro-2-aminophenol-6-sulphonic acid and the resulting dyestuff is heated under reflux with chromium fluoride solution; the product gives uniform blue-green dyeings on viscose silk from a neutral Glauber's salt bath; if the chromium fluoride is replaced by copper sulphate, the product, containing chromium and copper, gives greenish grey dyeings.  (4) The chromium compound of the dyestuff 5-nitro-2-aminophenol --> (acid) 2 : 5 : 7-aminonaphtholsulphonic acid is coupled (alkaline) with diazotized 4-nitraniline; the product gives fast grey dyeings on regenerated cellulose silk; if the coupling is effected on the fibre the dyeings are violet-black.  (5) The chromium compound of the dyestuff 5-nitro-2-aminophenol --> (acid) 2 : 5 : 7-aminonaphtholsulphonic acid is coupled (alkaline) with diazotized sulphanilic acid; the product gives violet-grey to black-violet dyeings on regenerated cellulose from a neutral or feebly alkaline bath.  An example of the dyeing process for regenerated cellulose silk is also given.  Specifications 271,897, [Class 2 (iii), Dyes &c.], and 351,400 are referred to.
Patent GB-372051-A (GB)
Title: Improvements relating to thermally-released overload circuit-breakers
IPC: H01H71/58
Filed: 1931-03-28
Abstract: 372,051. Automatic circuit-breakers. EMAG ELEKTRIZITATS AKT.-GES. and HEILMANN, P., 41, Bornheimer-Landwehr, Frankfort-on-Main, Germany. March 28, 1931, No. 9459. [Class 38 (v).] A thermally-released overload circuit-breaker has an interchangeable expanding wire H so that it may be used for different current strengths and has means providing quick adjustment each time a new wire is inserted. The current-carrying wire H is anchored by stop buttons S, S<1>, to an adjustable spring O and to a lever Z pivoted at R. When the wire expands a spring M rotates the lever till another arm Z<1> of the lever strikes the mid-point D of a toggle F, G breaking the latter and causing the movable contact T to open. To adjust the device, as soon as a new wire is inserted, a nut P regulating the spring O is turned till the arm Z<1> which acts as a pointer comes opposite a fixed mark 2 on a support U. The switch is then ready for use. The mark 2 is a mark placed at an arbitrary distance from a mark 1 corresponding to the position of the arm Z<1> at which the toggle just collapses. The wire H may also act as a fuse and be surrounded by suitable filling material. A magnetic blowout V, W is provided.
Patent GB-142272-A (GB)
Title: Improvements relating to two-wheeled draft vehicles
IPC: B62B5/04
Filed: 1919-04-14
Abstract: 142,272. Gill, H. A., (Hosking, C.) April 14, 1919. Actuated or applied by road-vehicle tipping or balancing arrangements; band or coil; force-transmitting mechanism.- To prevent the reaction of the brakes from causing undue downward pressure on the horse, the body of a two-wheeled draft vehicle is mounted on a cranked axle or equivalent so that it is raised when the brakes are applied. According to one arrangement, Figs. 1 and 2, the body 1 is rotatably mounted by brackets 3 and bearings 40 on the cranked axle 4, and brake bands 12 for acting on the wheel hubs have each one end 10 attached to a lever 6 on a rockshaft 5 pivoted in extensions of the cranked parts 18 of the axle. One lever 6 has a second arm which is connected by a link 16 to the hand-lever 15. On tightening the bands, the cranks 18 tend to turn with the wheels and take up an inclined position. The body may be mounted on springs, these being rotatably clipped on to the axle instead of the brackets 3. The shaft 5 may be actuated by worm gearing and a flexible shaft, Fig. 8, or by Bowden wire mechanism.
Patent GB-1272611-A (GB)
Title: Filters
Inventor: PEARCE FRANCIS PRESTON
IPC: B01D29/00
Filed: 1969-02-21
Abstract: 1,272,611. Filter unit. AIRPEL Ltd. 3 Feb., 1970 [21 Feb., 1969], No. 9516/69. Heading B1D. A filter unit, comprising at least one wire mesh or perforate metal basket 32 adapted for outward flow and arranged with its open end uppermost in a chamber 10 closed by a cover 36, is characterised by an annular gallery 44 enclosing the basket-seating flange 34 on the upstream side, which gallery has a drain 46 normally closed by an extension 48 of one of the cover-retaining bolts 52. This ensures that the drain 46 is opened to release unfiltered liquid from the upstream side of the chamber before the cover 36 can be lifted to remove the basket, thus the' downstream side of the chamber is not contaminated. A plate 60 is captive with bolt 52 and covers the heads of the other three cover-retaining bolts to prevent access thereto until bolt 52 is withdrawn. Fig. 1 shows a double unit with a valve 14 directing flow through one or both filters. The valve handle 30 has a locking device (66) and carries a shroud 64 which covers the bolt 52 of the or each chamber 10. or 12 which is in use to prevent its cover 36 being removed. The valve members (Fig. 2, not shown) have cavities to' equalise the lateral forces thereon when one chamber is pressurised and the other not. The unit is designed for connection into a pipeline for fuel oil. The basket 32 has a handle 38 urged downwards by engagement with the cover 36.
Patent GB-610854-A (GB)
Title: Alumina low silica refractory
IPC: C04B35/484
Filed: 1946-03-27
Abstract: A heat-cast refractory, particularly for use with molten magnesium and its alloys, is composed of crystals in an amorphous matrix and comprises 45-92 per cent alumina 1.9-45 per cent zirconia, 1.5-5 per cent silica 1.4-7 per cent magnesia, 0-3 per cent alkali metal oxide 0-3 per cent. iron oxide and 0-5 per cent titania, these ingredients forming at least 95 per cent. of the total composition.  Examples of suitable compositions are furnished.  Specification 542,157 is referred to.
Patent GB-508809-A (GB)
Title: Improvements in and relating to containers for cigarettes or objects of similar shape with dispensing means
IPC: B65D83/00
Filed: 1938-03-29
Abstract: 508,809. Boxes for cigarettes &c. MONATH, A. Murch 29, 1938, No. 9606. [Class 18] In a container for cigarettes or similarly-shaped objects, in the form of a wrapper or refill box having means for dispensing the cigarettes one by one, comprising a feeder actuated by a coiled spring and an ejecting device with a returning spring, the coiled spring surrounds a stationary rectilinear wire member which guides the spring and extends along, and adjacent to one of the larger side walls of the container. Fig. 3 shows a cardboard container, to be thrown away after use, made by folding up the blank-of-Fig. 2, and comprising a coiled spring 13 surrounding the vertical limb of a #- shaped wire strip 12. The spring is kept compressed, when the container is full, by (a) a feed plate 14, tongues 17 on which pass through slots 18 in the base of the cardboard, box and grip a transversely removable cardboard sheet 19, or (b) a wire feed member 114, the U-shaped part 117 of which depends within the spring and is similarly secured by a. cardboard sheet. The U-shaped ejector 20 slides on the edge of the flap 6, and moves towards the ejection opening 10 against the pull of a rubber band 25 anchored to the finger-piece 22 and. a, tab 24 cut out of the side wall, 6. The opening 10 is covered between ejections by a flap 9 held closed by a weak rubber spring 27 anchored thereto and to the piece 22. The ejector 20 may be replaced by a similarly-shaped wire member. In a metal drawer-and-shell refill box, a coiled spring 35 surrounds a strip 34 of wire or sheet metal soldered to the base of the shell and to a tongue projecting from the top of a groove 33 in the shell in which the strip is housed. Alternatively, the strip may be formed by punching from a longitudinal strip of metal which is then soldered (if the shell is of metal) or stuck (if the shell is non-metallic) to the shell. The feed member 36 is guided along the strip by a grooved block 38 of wood or synthetic resin. The ejector comprises a cigarette-end-engaging lug 47 formed at the end of a springy strip 48 ; when a cigarette has been ejected against the pressure of a spring 49, and the ejector returns, the strip rides back over the top cigarette in the tilted position shown in dotted lines and springs down into a recess 57. A weak spring 51. enclosed between the ends of the ejector and of a link 55 secured to the lid 52 normally closes the ejection opening.
Patent GB-1527944-A (GB)
Title: Container handling apparatus
IPC: B65G63/06
Filed: 1977-06-02
Abstract: 1527944 Container traffic loading station DOBSON PARK ENG Ltd 2 June 1977 [11 March 1976] 09662/76 Heading B8Q A station for unloading containers from a vehicle or loading them thereon comprises fixed rails 18, 19 between which a vehicle can be driven and movable members 16, 17 parallel thereto and actuated by rams 34. The framework 40 of a container or other body has extendable members 43, 44 at its side which are engaged by the members 16, 17 to lift the container from a vehicle and after it has driven away to lower the container on to the fixed rails 18, 19. Ramp surfaces, 46, 47 correctly position the frame 40 on the members 16, 17 while locating devices 21 ensure correct positioning on the rails 18, 19. A reverse cycle allows a container to be loaded on to a vehicle.
Patent GB-901743-A (GB)
Title: Improvements in or relating to thermostatic controls for heating appliances
Inventor: CLIFF THOMAS CHARLES
IPC: F24C3/12
Filed: 1960-03-18
Abstract: 901,743. Cooking stoves. BRITISH THERMOSTAT CO. Ltd. March 7, 1961 [March 18, 1960; May 19, 1960], Nos. 9675/60 and 17705/60. Class 126. A cooking vessel support, for use in association with a thermostatic control for a surface heater, is constructed so that the cooking vessel is supported at three points, one of which has a sensing element for the control. In the embodiment shown, the vessel is supported above a gas burner 1 on two pillars 2, 3 and a sensing element 4 with a screen 5. The sensing element may comprise a charged capsule forming part of a self-contained thermostatic unit for providing direct actuation of the gas valve. In a modification, Fig. 2 (not shown), the pillars are replaced by two bars converging on and sloping towards the sensing element. A further embodiment, Fig. 3 (not shown), has two parallel sloping bars with the element between. A final embodiment, Fig. 4 (not shown), has two bars parallel to the burner 1 at different levels, the one nearer the element being at a lower level than the other, and both slope inward from their outer ends. Specification 865,213 is referred to.
Patent GB-966524-A (GB)
Title: Electromagnetic snap-action switches
Inventor: COLLINS GORDON
IPC: H01H50/68
Filed: 1960-03-18
Abstract: 966,524. Electromagnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1961 [March 18, 1960], No. 9749/60. Heading H2B. An electromagnetic snap-action relay has a trident-shaped blade spring SB having its three limbs joined at the end which carries the movable contact C2 and a longer centre limb CA of S-shape in a plane at right-angles to the plane of the blade secured at its other end by a rivet R1 to the relay frame. The ends of the outer limbs SA1, SA2 of the blade SB form knife edge bearings in a brass member BM of the frame and the centre limb CA passes through an opening in the member BM. An armature AR is riveted to the limb CA and biased by adjustable tension springs TS so that the armature AR and blade SB occupy the full line position shown with the movable contact C2 engaging an adjustable stop ST. On energization of a coil EC the armature AR is attracted to an off-set pole MC and tilted to snap the blade to the dashed line position shown with contacts C2, C1 in engagement. An adjustable contact may replace the stop ST.
Patent GB-754389-A (GB)
Title: Improvements in the inhibition of oxidation of fats or fatty oils
Inventor: JR LEROY DUGAN
IPC: C11B5/00
Filed: 1954-04-02
Abstract: The oxidation of fats or fatty oils, e.g. lard, is inhibited by incorporating a mixture of 2, 6-di-tertiary butyl-p-cresol and butylated hydroxyanisole - a - substance consisting mainly of the two isomers 3-tertiarybutyl-4-hydroxyanisole and 2-tertiary butyl - 4 - hydroxyanisole.  The compounds may be added to the fat or oil in solution in a mutual solvent, e.g. propylene glycol, ethanol or a mono- or di-glyceride.  Specification 754,388 is referred to.ALSO:The oxidation of animal and vegetable fats or oils, e.g. frying media, bakery fats, shortenings and lard, is inhibited by incorporating a mixture of 2, 6-di-tertiary butyl-p-cresol and butylated hydroxy-anisole which may be a mixture of the isomers 3-tertiary butyl-4-hydroxy-anisole and 2-tertiary butyl-4-hydroxy-anisole.  The compounds may be added to the fat or oil in solution in a mutual solvent, e.g. propylene glycol, ethanol or a mono- or diglyceride. Specification 754,388 is referred to.
Patent GB-435936-A (GB)
Title: Improvements in and relating to the manufacture of photo-printing papers
IPC: G03C1/64
Filed: 1934-03-29
Abstract: 435,936. Photographic ferroprussiate processes. HALDEN & CO., Ltd., J., and HOLDEN, J., Rowsley Works, Reddish, near Stockport, Cheshire. March 29, 1934, No. 9787. [Class 98 (ii)] Printing paper and cloths sensitized with ferroprussiate solution are coated on the sensitized surface with a developing or intensifying agent which is an oxidizing agent in the form of a fine and dry powder not easily soluble in water so that it will exert an intensifying effect late in the development stage. The powder is worked into the sensitive coating as by means of a rotary felt-covered pad, and excess powder is removed by highspeed rotating brushes. Suitable oxidizing agents include strontium, magnesium, and calcium peroxides or hypochlorites, and chlorine derivatives of aromatic sulphonamides. To prevent bleaching of the blue background of the print, an acid or acid salt may be included in the sensitive coating or the powder, or applied before or after the powder, e.g. stearic acid dissolved in petroleum spirit. Diluents such as rice starch or boric acid may be mixed with the dusting powders The paper may be rendered waterproof or semiwaterproof by treatment with a solution such as paraffin wax dissolved in petroleum according to Specification 418,976, which solution may also contain an acid. Wetting-agents may be included in the waterproof coating or in the powders. Examples of sensitizing and powder compositions are given in the Specification.
Patent GB-769254-A (GB)
Title: Improvements relating to cooling chamber walls
IPC: F02F1/16
Filed: 1955-04-04
Abstract: 769,254. Cooling cylinders. GOETZEWERKE F. GOETZE AKT.-GES. April 4, 1955 [July 30, 1954], No. 9812/55. Class 7 (2). [Also in Group XVIII] A wet liner 2 has its cooled surface protected by a sprayed, stuck or vulcanized coating 3 of natural or synthetic rubber. All the cooled surface or only those parts thereof most subject to cavitation attack, e.g. opposite a cooling medium inlet, may be coated.