baber/WOPTO huggingface dataset:
Patent GB-423143-A (GB)
Title: Improvements in gas valve controls and burners for gas stoves
IPC: F16K5/10
Filed: 1934-04-04
Abstract: 423,143. Gas burners. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. April 4, 1934, No. 10148. [Classes 75 (i) and 75 (iii)] A gas stove or fire, more particularly of the kind described in Specification 405,382, 405,786, 408,731 or 416,474, is provided with a cock C adapted to supply gas in successive order to a pilot-jet D, a group of incandescent burners B and a group of heating burners or a single heating burner A having a row of nozzles A<1>, the pilot jet being rotated through gearing E, E<1> for igniting the burners. The handle C<2> of the cock carries a spring pawl c<2> which engages in notches c<3> in an index plate C<1>. The pilot jet is ignited outside the stove casing and extinguished when all the burners have been ignited. In modifications, an additional pinion is introduced between the pinions E, E<1> to reverse the direction of movement of the handle C<2> whilst maintaining the same direction of movement of the pilot jet, or the handle C<2> operates the pinion E through a pivoted quadrant and links or gearing.
Patent GB-591030-A (GB)
Title: Improvements relating to electric switch operating mechanism
IPC: H01H19/46
Filed: 1945-04-23
Abstract: 591,030. Retractive switches. FIRST INDUSTRIAL CORPORATION. April 23, 1945, No. 10204. Convention date, Sept. 7, 1944. [Class 38 (v)] An actuating mechanism for a plungeroperated switch comprises an actuating arm 7 pivoted to a bracket 3 fixed to the switch housing 1, the arm 7 having a bendable part 16 for adjusting the actuating position of the arm 7 with relation to plunger 2. A moving element strikes a roller 11 on the arm 7, which transmits the movement through the member 16 and a compression spring 18 on a post 15 to the plunger 2 to actuate a micro-switch, such as that described in Specification 419,917. The spring 18 permits overtravel of the roller 11. A spring 12 normally biassed the arm 7 against a bendable rest 13.
Patent GB-797949-A (GB)
Title: Process of producing block polymers
Filed: 1955-04-07
Abstract: Graft copolymers are made by forming a homogeneous dispersion of two or more vinyl monomers of which one or part of which are very soluble in water, adding water to the mixture in a concentration, which in relation to the very soluble monomer is, on a molar basis, equal to or less than one mol. and which is still below the limit when separation of the substances present in the mixture occurs, and polymerizing the mixture preferably in the presence of a catalyst such as azoisobutyric acid dinitrile, and dyes, fillers, or plasticizers. Suitable polymerizable mixes are N-vinylpyrrollidone and vinyl chloride, N-vinylpyrrolidone and styrene, and styrene and acrylic acid.  Urea may also be added to these mixes.
Patent GB-693146-A (GB)
Title: Improvements in a fuel injection apparatus
IPC: F02M49/02
Filed: 1951-05-02
Abstract: 693,146. Cooling cylinders. FRENCH, L. O. May 2, 1951, No. 10304/51. Class 122(i) [Also in Groups XXVII and XXVIII] In a fuel-injection apparatus for an internal-combustion engine e (see Group XXVIII), the injection pump is actuated by a piston 8 subjected to the pressure in the engine cylinder. Fuel under pressure is supplied to the pump and also to the space 52 surrounding the cylinder of the piston 8 for cooling purposes and for additional cooling the lower part of the piston 8 serves as a pump for drawing a part of the fuel through the inlet valve 87 and forcing it through the delivery valve 90. Specification 651,483, [Group XXVII], is referred to.
Patent GB-905379-A (GB)
Title: Improvements relating to hydraulic mine roof supporting devices
Inventor: FRYE COLIN MICHAEL
IPC: E21D23/12
Filed: 1960-03-23
Abstract: 905,379. Advancing pit props. DOWTY MINING EQUIPMENT Ltd. March 14, 1961 [March 23, 1960], No. 10341/60. Class 20 (2). In an advancing mine roof support comprising two overlapping and interconnected frame units, see Fig. 1 (not shown), adapted to be advanced in push-pull fashion, the prop means 15 of each frame unit are each connected to power supply and return lines through conduit means incorporating a four-way selector valve 33 and an isolating valve 55 for preventing simultaneous contraction of the frame units. Each isolating valve is spring-loaded to prevent contraction of its associated prop means unless retracted by pressure fluid fed through a conduit 64 communicating with the setting pressure of the second frame unit, the selector valve being suitably positioned. Each valve 55 is provided with a manual over-ride 66 to allow both frame units to be simultaneously extended.
Patent GB-322982-A (GB)
Title: Improvements in suction rolls such as are employed in paper and board making machines, pulp driers and the like
IPC: D21F3/10
Filed: 1929-04-03
Abstract: 322,982. Marx, R. J. April 3,1929. Suction apparatus.-The sides of the opening of a stationary suction box are thickened throughout their length to provide an increased bearing surface, to reduce wear against the shell of a suction roll, and to avoid undue air leakage &c. Ribs D fixed to the suction box have openings J to facilitate cleaning. Packing members for the ends of the suction box opening are adjustable in machines for material sheets of various widths. Rubber strips F may be secured beneath the lips E to contact with the shell A.
Patent GB-479401-A (GB)
Title: Improvements in and relating to electrolytic condensers
IPC: H01G9/00
Filed: 1937-04-13
Abstract: 479,401. Electrolytic condensers; electrodeposition of shellac; anodic coatings. BRITISH THOMSON-HOUSTON CO., Ltd. April 13, 1937, No. 10514. Convention date, April 14, 1936. [Classes 37 and 41] One electrode at least of an electrolytic condenser consists of film-forming metal provided with a current blocking film and an overlying film of electrolyte-permeable resin. Preferably an aluminium foil 4 is first conducted through a receptacle 1 containing a solution of a resin such as shellac in an alkaline aqueous solvent and a direct current is passed through the foil to a cathode 3 to cause a deposition of shellac. The foil then passes into an oven 6 in which it is baked at about 100-200‹ C., thence into a container 7 through an aqueous electrolytic. Where it is anodically filmed with oxide beneath the resin coating, and is finally baked in a second oven 10. For the shellac, a tree resin or a fossil resin may be substituted, and for the alkali in the resin solution the hydroxide, borate or carbonate of sodium potassium or ammonium may be used or mixtures of these. In some cases a plasticizer such as a soap or rubber latex may be added. Specification 465,299 is referred to.
Patent GB-551443-A (GB)
Title: Improvements relating to the protection of electrical apparatus from high voltage surges and the like
IPC: H01C7/12
Filed: 1941-08-19
Abstract: 551,443. Protective discharge arrangements. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., WALKER, A. H. B., and WATSON, T. F. E. Aug. 19, 1941, No. 10516. [Class 38 (iv)] In the protection of electrical apparatus, e.g. a condenser, against high-voltage surges and lightning discharges, there is connected across the apparatus one or more dry contact rectifier devices of the selenium or " front wall " type so connected as to be traversed by the current surge in reverse direction to that in which the rectifier is normally conductive. As applied to A.C. circuits, rectifier elements of the type referred to are arranged in two sets P, N on a supporting bolt 1, one set of rectifiers being placed for conduction in one direction and the other for conduction in the other direction..The device is connected to the.protected apparatus by the lugs 7 and a central lug 9 may be earthed. The, rectifiers may be so arranged that the direction of conduction alternates through the series.
Patent GB-197505-A (GB)
Title: Improvements in machines for grinding the flats of carding engines
IPC: B24B19/18
Filed: 1922-04-12
Abstract: 197,505. Horsfall &. Bickham, Ltd., and Shaw, T. R. April 12, 1922. Wire cards, grinding; feed devices.-Carding- engine flats are mounted on a carriage, which is given a vertical reciprocation across the grinding- roller and an intermittent horizontal feed movement. A pawl b, Fig. 1, on a member c of the carriage engages a star-wheel d and thereby rotates a cam f to oscillate an arm g about a shaft a. A pawl h on the arm g engages a ratchetwheel i and imparts a slow rotation to the shaft a through integral planet wheels j, k, Fig. 3, which are carried by the wheel i and respectively engage gears n, m. The gear n is keyed to a fixed bracket o, while the gear m is keyed to the shaft a, which carries a cam, eccentric screw, or other device for imparting the feed to the carriage. A gapped mask-plate p arranged around the ratchet-wheel and adapted to disengage the pawl h therefrom when a predetermined amount of movement has been imparted thereto, is adjusted relatively to said wheel by a pinion r carried by the plate and then locked to the wheel i by a stud s and nut t. Specification 20742/10 is referred to.
Patent GB-568193-A (GB)
Title: An improved treadle motion for looms
IPC: D03C5/02
Filed: 1943-06-29
Abstract: 568,193. Loom shedding-mechanism STAUBLI, H, STAUBLI, R., STAUBLI, H., and STAUBLI, O., (trading as STAUBLI & CO., GEB.). June 29, 1943. No. 10543. Convention date, June 29, 1942. [Class 142 (i)] In a treadle motion for a loom having one eccentric per heald shaft, each eccentric c is provided at each side with a boss having spur teeth d so that the eccentrics mesh with one another upon a common shaft b. Upon angular adjustment of the eccentrics according to the nature of the weave, the eccentrics are locked upon the shaft between positioning rings secured to the shaft and having spur teeth engaging the end eccentrics. The eccentrics act in usual manner upon rollers f carried by levers g to which the heald shafts are attached.
Patent GB-105763-A (GB)
IPC: B01D46/02
Abstract: 105,763. Raymond Bros. Impact Pulverizer Co., (Assignees of Lachmann, R. A., Senseman, W. B., and Raymond, A. W.). Oct. 23, 1915, [Convention date]. Impact pulverizers. - A dust-collector tor use with mills such as are described in Specification 101,962, in which the dust is discharged by a current of air, consists of a chamber 1 covered by a pervious bag 9 and provided with a partition 5 having a central opening 6, the dust entering tangentially through a pipe 2 below the partition. The partition is preferably conical The feeding-device of the mill may communicate with a pipe 7 which opens into the chamber above the partition. The dust collects in the lower part of the chamber and can be discharged by opening a slide 4.
Patent GB-728121-A (GB)
Title: Improvements relating to plating rings
IPC: A47J36/34
Filed: 1950-04-29
Abstract: 728,121. Plating rings. JAMES, D. M. July 30, 1951 [April 29, 1950], No. 10603/50. Class 128. A plating ring 1 has an upwardly tapering side-wall and a dished cover 2 which is integral with or separate from the side-wall and has a groove in its upper edge to facilitate the carrying of a plate thereon. The upper edge of the cover may have a flange 3. The upper and lower edges of the side-wall may be recessed or slotted to receive a knife, fork and spoon.
Patent GB-998687-A (GB)
Title: Improvements in or relating to surface treatment of bright annealed strip
IPC: C25D11/26
Filed: 1963-03-18
Abstract: Stainless steel sheet or strip is first annealed in a reducing atmosphere, e.g. of H or cracked ammonia, and then treated anodically in an electrolyte containing one of acetic acid, formic acid, chromic acid, or caustic soda solution, to give it a high polish.  A pre-treatment applying HNO3 or H2SO4 cathodically may be applied. The annealing treatment is effected at 1250-2050  DEG F. using a reducing gas low in moisture, and is applied to all types of Cr-containing stainless steels which may include other alloying metals.  The anodic treatment is effected at 40-120  DEG F. using a solution containing 3-60% of chromic acid, and lower concentrations for the other specified reagents, down to 3-20% NaOH.
Patent GB-253303-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D29/44
Filed: 1925-04-24
Abstract: 253,303. Millington, W. E. W. April 24, 1925. Casings. - The casing of a centrifugal pump has a number of spaced delivery passages a, b, c, d vhich form tappings for the liquid from the impeller. The passages may be of circular or rectangular cross-section and are of diverging form; they are set at an angle to the radial direction. The passages a, b, c are shown with pointed, chamfered, and rounded edges respectively, and the part f of the casing has a greater clearance than the remaining part from the impeller. Specification 253,302 is referred to.
Patent GB-1439567-A (GB)
Title: Polyalkenylsuccinimides and organic liquid compositions thereof
IPC: C10N40/08
Filed: 1974-03-11
Abstract: 1439567 Polyolefin derivatives MOBIL OIL CORP 11 March 1974 [30 March 1973] 10738/74 Heading C3P [Also in Divisions C2 and C5] Polyalkenyl succinimides prepared by reacting a polymer of a straight chain 1-olefin containing at least 10 carbon atoms with maleic anhydride and reacting the resulting polyalkenyl succinic anhydride with an alkylene polyamine, may be used as detergent additives in lubricating oil and fuel compositions. The olefin preferably contains 10 to 30 carbon atoms, and may be polymerized in the presence of di-t-butyl peroxide, aluminium chloride, borontrifluoride and complexes thereof, and anionic and cationic polymerization initiators. In example (3) 1-decene is polymerized in the presence of aluminium chloride and the product reacted with maleic anhydride and tetraethylene pentamine.
Patent GB-527330-A (GB)
Title: Improved carburettor for internal combustion engines
IPC: F02M19/02
Filed: 1939-04-06
Abstract: 527,330. Spray carburetters. ADAM OPEL AKT.-GES. April 6, 1939, No. 10769. Convention date, April 14, 1938. [Class 7 (iii)] In a downdraught carburetter having the fuel spraying orifices disposed in a streamline member 17 arranged diametrically across the throat of a Venturi 9, the passages leading to the orifices 21 extend obliquely downwards and the orifices 21 lie immediately below the widest part of the member 17. Fuel is supplied from an annular float chamber 7 through a submerged nozzle 20 to a passage 19 communicating by a passage 18, in the member 17, with the spraying orifices 21, a conduit 23 between the air inlet 1 and the passage 19 supplying aerating air to the fuel. When the engine is running under load, additional aerating air enters the passage 19 through a conduit 23a controlled by a valve 24 which is actuated by a diaphragm 37 in a chamber 25 open to the air inlet 1. Aerating air is also admitted to the spraying orifices through inlets 21a formed by drilling reversely the passages leading to the orifices. Opposite the spraying orifices, the passage 18 communicates with idling passages 27, 31, the arrangement ensuring a ready supply of fuel when the throttle is opened. An acceleration pump 11 is actuated by the throttle through a spring 12. The carburetter is constructed in three portions, the middle one comprising the float chamber, the member 17, and the cylinder 10 of the acceleration pump and having the Venturi tube introduced into it. The fuel admission union carrying an horizontal valve is screwed into this portion and the idling passage 27 forms a continuation of the union.
Patent GB-499301-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1937-04-15
Abstract: 499,301. Spray carburetters. MUZZOLON, A. April 15, 1937, No. 10795. [Class 7 (iii)] A carburetter is formed in two parts, one part a, containing an air inlet d and a Venturi c, and the other part b, containing two nozzles u, s, connected to separate float chambers, one for heavy and the other for light fuel. The discharge end of the nozzle u supplying heavy fuel is located at a less restricted part of the Venturi than that of the nozzle s supplying light fuel thereby enabling the nozzles s, u to function in succession. The float chamber g also supplies an idling passage p having an air inlet controlled by a valve r. Reference has been directed by the Comptroller to U.S.A. Specification 1,944,068.
Patent GB-1292922-A (GB)
Title: Improvements in rotary positive displacement pumps
Inventor: LETTENMAYER ROLF-DIETER
IPC: F04C14/26
Filed: 1970-03-06
Abstract: 1292922 Rotary pumps ROBERT BOSCH GmbH 6 March 1970 10808/70 Heading F1F In a rotary positive-displacement pump of the  two-abutment sliding vane kind driven at varying speed to supply a load, e.g., vehicle power steering gear, wherein at low speeds the liquid supplier to the load is returned therefrom through a return bore to the suction side of the pump and at higher speeds residual flow of liquid in excess of that required is diverted by way of a flow regulating valve to the suction side of the pump, the residual flow is throttled to increase its velocity to produce a partial vacuum for indicating liquid through the bore into the suction side of the pump and a control valve spool of the flow regulating valve acts as a diffuser to lower the velocity of the liquid and  increase its pressure to ensure satisfactorily charging of the pump even at maximum pump speed, In one embodiment, a control valve spool 14, Fig.2, slidable in a bore 13 and urged by a spring 23 into end engagement with a fixed insert 12 is formed with a recess 29, Fig.3, which faces a passage 24 leading to the inlet zones of the pump and controls a return bore 26 connected to a reservoir 28 which receives the returned liquid from the load being operated. The insert 12 is connected to pump delivery by a passage 10 and formed with a wall 18<SP>1</SP> having a throttling orifice 25, Fig.1, through which pump delivery passes to pump discharge passage 20. A part 21 connects the discharge passage 20 with a chamber 22 behind the valve spool 14 so besides being acted upon by the spring, the spool is subjected to the pressure difference on the two sides of the orifice 25. At low pump speeds this pressure difference is small so that the spring 23 holds the spool 14 in abutment with the insert 12. At high speeds as the pressure difference increases the spool 14 is moved rightwardly and the return bore 26 is connected via a tapered recess 27 with the passage 24 leading to the inlet zones of the pump. A flow-off flank 30 from the recess 29 and diffuser passages 24' leading to the two suction zones of the pump produce or partial vacuum, to decrease the velocity of the liquid sucked from the bore 24 and increase its pressure to ensure full filling of the pump inlet zones even at high pump speeds. For other embodiments reference should be made to the Specification.
Patent GB-592677-A (GB)
Title: Improvements in or relating to the production of benzene hexachloride and to compositions containing the same
IPC: C07C17/386
Filed: 1945-04-30
Abstract: The odour associated with crude benzene hexachloride, e.g. as used in the preparation of pest control compositions is reduced by steam distilling an aqueous suspension of crude benzene hexachloride for a time-period insufficient to remove therefrom any substantial proportion of the benzene hexachloride, e.g. for a period of between 1 and 6 hours.  Advantageously, a solution or slurry of crude benzene hexachloride in benzene is added to water maintained at a temperature approximating to its boiling point, whereby the benzene is rapidly vaporized, and the resulting aqueous suspension of crude benzene hexachloride is steam distilled, e.g. for a period of 2 to 3 hours. Advantageously, the crude benzene hexachloride is obtained by the additive chlorination of benzene in the presence of actinic radiation and it may be further treated to obtain a fraction containing an enhanced proportion of the gamma isomer.  In an example, a solution of crude benzene hexachloride in benzene prepared by chlorinating benzene in the presence of actinic radiation, is gradually added to water at 100 DEG  C. and through which steam is passed, thereby vaporizing the benzene.  After the addition is completed in approximately 1 1/2 hrs., the steam distillation is continued for a further period of six hours when the benzene hexachloride is separated from the water by filtration and dried. Specifications 573,689, 573,693; 582,042, 582,054, 586,433, [all in Group VI], 586,439, 586,442, 586,691, [Group VI], 592,670, and 592,674, [Group VIII], are referred to.
Patent GB-115969-A (GB)
Title: Improvements in or relating to Cardboard Boxes or like Receptacles.
IPC: B65D25/16
Filed: 1917-07-30
Abstract: 115,969. Upton, Ltd., J., and Penzer, J. E. July 30, 1917. Joints between box bottoms and bodies; lined boxes.-A receptacle for cocoa &c. is made with a tubular body a, Fig. 2, of cardboard or like material and a base b consisting of a disk of cardboard, which is supported on an inwardly-curled part c of the body and may be retained in position by glue applied to the edge of the body or of the disk. A lining e of paper &c. may be added, and this may extend around the inside of the inturned part. An internal ridge f, Fig. 3, may, in some cases, serve to secure the bottom; or a lid like member g, Fig. 4, of cardboard may be glued in the body or may, as shown, have its flange curled inwards with the body in order to secure the bottom b. The receptacle may have a metal lid embracing it.
Patent GB-1515644-A (GB)
Title: Tank vehicles
IPC: B60P3/22
Filed: 1977-03-08
Abstract: 1515644 Tank vehicles CRANE FRUEHAUF Ltd 8 March 1977 [18 March 1976] 10922/76 Heading B7B In a tank vehicle designed to improve discharge of a slurry through a bottom outlet 13, two frusto-conical sections 6 are joined at their larger ends to form the tank and are arranged so that their uppermost surfaces 8 are horizontal and their lowermost surfaces 9 are at an angle of 20 degrees to 45 degrees to the horizontal. Apparatus for applying pressure to the tank for discharge and vacuum for loading is provided.
Patent GB-1010240-A (GB)
Title: Benzoic acid derivatives
Inventor: STELT CORNELIS VAN DER
IPC: C07C63/04
Filed: 1963-03-19
Abstract: o-, m- and p-Trifluoromethyl benzoic acids are prepared by reacting the corresponding chloro-substituted trifluoromethylbenzene with a metal cyanide, e.g. cuprous cyanide, and saponifying the resulting trifluoromethyl benzonitrile. The reaction between the chlorocompound and the metal cyanide is preferably carried out by heating the reactants under superatmospheric pressure in an inert organic solvent, e.g. N-methylpyrrolidone, dimethylformamide, dimethylsulphoxide and sulpholane. The saponification of the nitrile is carried out in known manner, e.g. by refluxing the nitrile with a solution of an alkali metal hydroxide in a mixture of water and alcohol. Some trifluoromethylbenzoic acid amide may be obtained as a by-product in the formation of the cyanide.