baber/WOPTO huggingface dataset:
Patent GB-786232-A (GB)
Title: Improvements in or relating to pulse jets
Inventor: SERVANTY PIERRE
IPC: F02K7/04
Filed: 1955-09-13
Abstract: 786,232. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 13, 1955 [April 28, 1955], No. 26147/55. Class 110(3). A pulse jet propulsion engine of the kind in which the air admission orifice faces rearwardly has a cowling enclosing at least the front part of the engine provided with a lateral slot in the region of the air admission orifice over the largest possible part of the periphery of the orifice and a tubular member with its inlet opening located downstream of the admission orifice in the direction of motion and having a greater crosssectional area than that of the admission orifice, the inlet opening being surrounded by a rounded leading edge which causes the flow in the vicinity of the air admission orifice to be of low speed and high static pressure. The pulse jet engine shown, Fig. 3, has a light alloy cowling 1 which encloses the combustion chamber a and is connected to the air inlet orifice 2 of the combustion chamber. A tubular member 1a, also of light alloy, has an inlet orifice 3 bounded by a rounded leading edge 4 located downstream of the air inlet orifice 2, preferably at a distance of one and a half times the diameter of the orifice 2. A wide lateral notch g is thus formed adjacent the orifice 2. The area of the intake orifice 3 should be between two and three times the area of the orifice 2 and the area of the discharge orifice 5 greater than that of the orifice 3. A cowling member 6 encloses the discharge nozzle b and is connected to the members 1 and 2 by a curved portion 8, Fig. 5, a number of ports 9 in the cowling 1 allow cooling air to pass over the combustion chamber a. This air is exhausted through ports 10 and 11. When the pulse jet unit is operated for long periods at rest, the cooling air outlet ports should be arranged in the radius 12. It is stated that the leading edge 4 causes a high pressure, low velocity, zone in the vicinity of the orifice 2. In a modification, the members 1a and b discharge into a common chamber leading to the propelling nozzle. This common chamber may be used to burn additional fuel injected at any convenient point. In a further modification, the discharge nozzle b discharges into a second tubular member similar to the member 1a and both of these members discharge into a common chamber leading to the propelling nozzle. Additional fuel may be injected into the intakes of both members. In a still further modification the tubular member 1a and discharge nozzle b discharge through ejectors, in which additional air is added to the gases, into a common chamber leading to a propelling nozzle. Additional fuel may be injected in the intakes of the ejectors. Reference has been directed by the Comptroller to Specifications 653,629 and 741,151.
Patent GB-1269503-A (GB)
Title: Toy building blocks
Inventor: FORSTER MARK WILSON
IPC: A63H33/10
Filed: 1968-05-31
Abstract: 1,269,503. Toy building blocks. M. W. FORSTER. 29 May, 1969 [31 May, 1968], No. 26304/68. Heading A6S. A set of toy building blocks comprises U- section blocks 8 and T-section blocks 2, the dimensions of the blocks being such that the arm 6 of the block 2 fits flush within the channel 14 of the block 8 to form a cube. The cube is preferably formed by blocks having square bases of side 3x, the height of the blocks being 2x, and the depth of the channel 14 and the length of the arm 6 being x. If the blocks are made of plastics material they may have depressions 20 which engage blisters 22 in an adjacent block, or they may have an annular groove 24, and a connecting tube 26 which fits in the groove to connect two blocks.
Patent GB-951509-A (GB)
Title: Process for dyeing hair, furs and other keratinous fibres
Inventor: KALOPISSIS GREGOIRE
IPC: D06P3/30
Filed: 1962-07-09
Abstract: The production of the following compounds is described:-2,5-dimethoxy-N-methylacetanilide is obtained by reacting 2, 5-dimethoxyacetanilide with sodium in liquid ammonia followed by reaction with dimethyl sulphate. 2, 5-dihydroxy-monomethylaminobenzene is obtained by refluxing the above intermediate with hydrobromic acid. 2, 5-dimethoxy-diethylaniline is obtained by refluxing together ethyl phosphate and 2, 5-dimethoxyaniline. 2, 5-dihydroxy-diethylaminobenzene is obtained by refluxing the above intermediate with a mixture of acetic and hydrobromic acids. 2, 5-dimethoxy -(b -diethylaminoethyl)-amino-benzene is obtained by reacting the hydrochloride of N-b -diethylaminoethyl chloride and 2, 5-dimethoxyaniline in the presence of calcium carbonate in aqueous solution.  2, 5-dihydroxy -(b -diethylaminoethyl)-amino-benzene is obtained by refluxing the above intermediate with hydrobromic acid. The hydroxy compounds are used for dyeing human hair.ALSO:Live human hair, fur and other keratinous fibres are dyed by impregnating the said fibres with an aqueous solution of at least one compound of the formula <FORM:0951509/D1-D2/1> wherein R and R1 denote hydrogen, an alkyl group of 1-4 carbon atoms or an alkyl of 1-4 carbon atoms substituted by an amino or hydroxy group, at least one of the groups R and R1 being other than hydrogen and causing or allowing oxidation of the compound to take place on the fibres.  The solution may have a pH of 3-9, preferably 7 and may further contain wetting agents, thickening agents, foaming agents and reducing agents such as sodium sulphite.  The specified compounds are 2,5-dihydroxy-monomethylaminobenzene, 2,5-dihydroxy-diethylaminobenzene and 2,5-dihydroxy-(b -diethylaminoethyl) aminobenzene.  Examples employing the hydrobromides of the above compounds together with the sodium salt of a sulphated C12-C14 fatty alcohol condensed with 2 mols ethylene oxide and sodium hydroxide in aqueous solution at pH7 are given, oxidation being effected by the air.
Patent GB-1323494-A (GB)
Title: Methylene-bis-chlorophenol
IPC: C07C39/44
Filed: 1971-04-19
Abstract: 1323494 Preparation of methylene-bis-(chlorophenol) TENNECO CHEMICALS Inc 19 April 1971 [1 May 1970] 26459/71 Heading C2C Methylene-bis-(chlorophenol) is prepared by reacting a chlorophenol and a formaldehyde generating compound in the presence of a polyphosphoric acid (e.g. metaphosphoric acid) as a catalyst and dispersing medium.
Patent GB-329593-A (GB)
Title: Improvements in steam boilers and furnaces
IPC: F22B17/10
Filed: 1929-08-30
Abstract: 329,593. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). Aug. 30, 1929, Water-tube boilers.-In a boiler having uptake and downtake headers 13, 12 connected by banks of inclined tubes 11, and a water-tube walled furnace chamber 18, the upper transverse header 23 of the front water-tube furnace wall 20 is connected to the steam and water drum 10 bv a number of uprisers 25 arranged between the headers 13 and the boiler casing 26 and opening at their upper ends into a transverse header 27 connected to the steam and water drum by tubes 28. Upriser tubes 251 connect the upper transverse header 24 of the rear furnace wall directly with the steam and water drum. The tubes in the lower rows of inclined tubes 11 are arranged directly one above the other, while the tubes in the upper rows are staggered. The upper headers 34, 47 of the side tube-walls are connected to the steam and water drum by tubes 35, 48.
Patent GB-478835-A (GB)
Title: Improvements in or relating to boiler and like furnaces
IPC: F23H3/02
Filed: 1936-09-30
Abstract: 478,835. Grates; firebridges. CHADWICK, V. R. Sept. 30, 1936, No. 26539. [Class 51 (i)] In a furnace with firebars supported in troughs as described in Specifications 25657/12, 16268/15, and 209,155, [all in Class 51 (i)], a boxlike unit 16 is arranged at the end of each trough and replaces two or more of the firebars 13. The unit is open at its lower end to receive air from the trough 11 and such air is delivered over the fire through tapered openings 20. The unit is locked in position by a tongue 23 engaging with an opening in the end wall of the trough.
Patent GB-472780-A (GB)
Title: Improvements in punching and stamping machines
IPC: C14B5/00
Filed: 1936-09-30
Abstract: 472,780. Cutting-out presses. LEY, A. Sept. 30, 1936, No. 26573. Convention date, Jan. 31. [Class 31 (i)] [Also in Group XXVI] In a hand-operated punching or stampin machine for leather, cardboard, &c., the hand lever 4 is secured to an eccentric 3 by which it effects the working stroke after the initial free movement of the ram has been taken up by adjustment of a second eccentric 5 mounted on the first and against which the ram 7 is pressed by a spring.
Patent GB-1100237-A (GB)
Title: Process for hydrogenating a diarylketone carboxylic acid
Inventor: MCCRACKEN JOHN HADLEY
IPC: C07C51/377
Filed: 1965-06-24
Abstract: A diaryl carbinol carboxylic acid salt or a diaryl methane carboxylic acid salt is obtained by hydrogenating a diaryl ketone carboxylic acid wherein each aryl substituent contains one or more rings, at least one of which is an aromatic ring carrying a carboxyl group, and wherein each aryl substituent carries 0 to 4 substituents selected from primary, secondary and tertiary C1-C16 alkyl radical,s F, Cl, Br, I, COOR (in which R is an alkyl group), NH2 or OH.  The process involves heating an aqueous solution of a salt of said acid, wherein the amount of water is sufficient to effect ionization of the salt and the salt is an Na, K, Li, Rb, Cs, Be, Mg, or NH4 salt of the diarylketone carboxylic acid, in the presence of H2 and a hydrogenation catalyst, at a temperature of about 100 DEG  to 200 DEG C. and a pressure of about 21 to about 70 kg. sq. cm. gauge, suitably for about 15 minutes to about 10 hours.  Specified catalysts are nickel, cobalt and copper chromite. Examples are given for the production of benzhydrol- and diphenylmethane-4,41-dicarboxylic acid.
Patent GB-865398-A (GB)
Title: Method for the purification of hydrogen peroxide
IPC: C01B15/013
Filed: 1957-08-26
Abstract: <PICT:0865398/III/1> Impure hydrogen peroxide is vaporized in tube 3 and the vapour produced is separated largely from unevaporated liquid in the lower portion of column 7.  The vapour rises through packing material into countercurrent contact with a stream of water or H2O2, substantially free of carbonaceous substances, introduced at line 19. The carbon-free H2O2 is subsequently fractionated in column 21.  The amount of water introduced through line 19 is such that the H2O2 content of the scrubbed vapour is greater than 5% by weight.  To avoid loss of H2O2 from column 21, water may be introduced through line 26.  Specifications 465,070, 686,572 and 686,574 are referred to.
Patent GB-463477-A (GB)
Title: Improvements in and relating to safety razor blades
IPC: B26B21/56
Filed: 1935-09-30
Abstract: 463,477. Safety razors. CLYDE BLADES, Ltd., and FIRNEBURG, W. Sept. 30, 1935, No. 26936. [Class 30] In order to put the cutting edges in tension when clamped in the holder, as described in Specification 358,773 blades are made in two parts one of which is buckled or otherwise distorted and then secured as by welding at its ends to the other a, the centre part of which has been removed. Other shapes of the two parts are shown. Fig. 2 shows the composite blade, the welded spots being at n.
Patent GB-1500178-A (GB)
Title: Signal processing circuit for a pal colour television system
IPC: H04N11/16
Filed: 1975-06-25
Abstract: 1500178 Television systems INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 25 June 1975 [3 July 1974] 26975/75 Heading H4F A circuit for deriving colour difference signals from a PAL chrominance signal includes a centretapped winding and a delay having two input and two output terminals. One of the input terminals is connected to one of the output terminals. The input to the circuit is applied to a first circuit path, which includes the delay, and to a second circuit path. In one embodiment (Figs. 1 and 3, not shown), the second path leads to a second winding coupled to the tapped winding, and the first path leads to the tap. In another embodiment (Fig. 2, not shown), the second path and one of the output terminals are connected to the tap, the other output terminal being connected to one end of the tapped winding. The colour difference signals appear at the ends of the winding.
Patent GB-375155-A (GB)
Title: Improvements in and relating to supporting devices for loud speakers
IPC: H04R9/06
Filed: 1931-09-28
Abstract: 375,155. Loud-speakers. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohenschonhausen, Berlin. Sept. 28, 1931, No. 27024. Convention date, July 25. [Class 40 (iv).] A I o u d-speaker chassis 2 is stamped out from a metal sheet so as to form a number of individual struts 3, 4, 5 which overlap one another in the flat and are subsequently bent up as shown so as to form a hollow space for the reception of the conical diaphragm 14, the actuating unit 10 being secured on the outer side of the struts at 11, 12, 13. Fixing means 15, 16 for the transformer 17 may be formed during the stamping and pedestal-like structures may also be punched out from the lower parts of the struts 4, 5 and brought into the required position by bending.
Patent GB-274326-A (GB)
Title: Improvements in punching and reaming machines
IPC: B21D28/16
Filed: 1926-10-28
Abstract: 274,326. Marks, E. C. R., (Troy Laundry Machinery Co., Ltd.). Oct. 28, 1926. Reaming. - In a machine for punching and reaming plates for vashing machines &c. the plate 14 is secured by screws 15 to slides 12 moved intermittently by ratchet mechanism actuated from an operating member 19. This latter carries punches 17 co-operating with a die 10. Reamers 36 are geared together and carried in a casing 29 supported on a yoke 40. A rod 28 on the member 1) raises the reamers to operative position. By a hand-lever 42 the reamers may be raised independently of the member 19. The reamers are held to their shafts by spring-pressed balls.
Patent GB-189750-A (GB)
Title: Improvements in trawling gear
IPC: A01K73/02
Filed: 1922-10-07
Abstract: 189,750. Vigneron, Dahl, et Cie. Nov. 26, 1921, [Convention date]. Nets; trawling-gear.-In a trawl net with extending wings bounded by a head rope 11 and a foot rope 14, connected to towing lines 21, extending to the end of the net, the upper part of the net extends beyond the foot rope and is dimensioned so that while the lower part is tensioned, it may distend under the action of floats or the like applied to the head rope. The net decreases in height and breadth from front to rear and is provided with vertical bands 22, to prevent the fish from escaping. The foot rope is weighted and may be protected by rollers or the like. The upper part of the net may be made of lighter cord than the lower part. In plan the head and foot ropes are superposed, and are both of trapezoidal form. Detachable floats may be fitted to the upper part of the net. The slats 8 have metal shoes on the lower end and are each connected to the towing rope by two cables. These slats are described and claimed in Specification- 211,165.
Patent GB-960104-A (GB)
Title: Improvements in or relating to processes for effecting a weld between the adjoining ends of two members lyingside by side and to welds made by such processes
Inventor: TAYLOR ALAN FREDERICK
IPC: B23K9/028
Filed: 1960-08-04
Abstract: 960,104. Welding by fusion. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 28, 1961 [Aug. 4, 1960], No. 27137/60. Heading B3R. An edge weld between the ends of abutting parallel members, e.g. an end cap 3 and a casing 2 of a nuclear fuel element, is made by forming a U-groove 4 in the abutting surfaces of the members 2, 3 and welding with the tip of the electrode of an inert gas shielded arc welding torch below the top of the U-groove 4. The members 2, 3 are of a magnesium alloy containing beryllium or zirconium, e.g. as described in Specification 776,649. A fuel element 1 is clamped in a chuck 6 connectable by a clutch 11 to a motor 10 driving a cam 36 controlling movement of the torch 38 towards the groove 4. The sequence of operations is controlled by cam-actuated switches 19 . . . 22, 30 and 31. A weld is effected by striking the arc and lowering the electrode into the U-groove. The fuel element 1 is rotated through 390 degrees and then rotation is stopped while the electrode is further lowered into the groove. A second pass is then made before the welding current is gradually reduced and the electrode withdrawn. In a modification one pass only is made.
Patent GB-768351-A (GB)
Title: Improvements in foundry moulds
Inventor: WILSON PERCY HUTCHINSON
IPC: B22C23/00
Filed: 1953-10-03
Abstract: 768,351. Moulds. STANTON IRONWORKS CO., Ltd. Jan. 3, 1955 [Oct. 3, 1953; March 4, 1954], Nos. 27199/53 and 6382/54. Class 83 (1). A mould comprises two or more metal mouldparts defining a cavity which is lined by an adherent layer of sand mixed with thermoset resin. The mould comprises two metal-sections 4, 6, each lined with an adherent lining 8, 10, #-3/16 inch thick, of sand and thermosetting resin, and a hollow core 12. The mould includes a runner bush 26, divided by webs 28 on the cone into a runner 30 and a riser 32. The mould-parts are clamped by a clamp 34 during casting. The mould and core are made by blowing the mould-mix into the spaces defined by the heated-metal mould-parts 4, 6, Fig. 5, split-pattern 38, 40 and hollow core-bar 42. The pattern-parts are treated with wax or oil before moulding, and the resin is cured by heat transferred from the mould and pattern-parts and the core-bar. The mould-parts are left with rough surfaces to provide a good key for the lining. The runner-bush may be made separately and fitted on to the mould by a spigot- and-socket joint. Residual heat in the metal mould-parts obviates the necessity for adding heat thereto when renewing the lining after each casting operation, the core-bar and patterns being reheated during the casting operation. Mould materials. 95.3 per cent silica sand and 4.7 per cent cresylic resin may be used.
Patent GB-272017-A (GB)
Abstract: 272,017. Davies, C. May 3, 1926. Adding and subtracting apparatus for use by bakers to determine the most suitable temperature for a mixing liquid, given the temperatures of the flour and of the proving-room, comprises a disc 1 provided with a scale 1<a> of room temperatures and, on an annular extension 2, with a scale of liquid temperatures visible through an aperture 10 made in a ring 3 rotatably mounted on the periphery of the disc. Between this ring and the scale 1<a> is a ring 6 graduated in flour temperatures and carrying an arm 7 adapted to be clamped to the ring 3 by means of a milled head 9. At the back of the disc is another annular scale of what is termed dough constants the values of which are determined from previous experience. To use the apparatus the disc is first turned with respect to the ring 3 until a pointer 11 carried by the latter overlies the dough constant. The ring 6 is then rotated until its zero 14 coincides with the zero mark 13 on the scale 1<a>, whereupon the ring 6 may be clamped to the ring 3. The disc 1 may now be turned to bring the room temperature on scale 1<a> against the flour temperature on ring 6, whereupon the liquid'temperature may be read at aperture 10.
Patent GB-739719-A (GB)
Title: Improvements relating to grapples and the like
Inventor: CHILD ALBERT
IPC: B66C1/44
Filed: 1952-10-29
Abstract: 739,719. Gripping loads. PRIESTMAN BROS., Ltd. Oct. 20, 1953 [Oct. 29, 1952], No. 27209/52. Class 78 (4). The jaw 10 of a lifting dog engages the load 13 through a composite resilient tube comprising a number of closely fitting coaxial tubes 16, 17 of rubber - like material projecting from a channel or groove. As illustrated the composite tube is mounted in a channel member 11 which extends the whole length of the lifting dog shown in Figs. 1 and 2 of Specification 739,720. The width of the channel is less than the outside diameter of the tube which is held captive by a rod 14 on which it fits loosely and which is secured by nuts to cheeks closing the ends of the channel 11. The channel 11 may be replaced by a member providing a pair of channels each accommodating a composite load engaging tube.
Patent GB-456613-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/04
Filed: 1935-10-02
Abstract: 456,613. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand-Ges. fur Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin) Oct. 2, 1935, Nos. 27215 and 33802. [Class 39 (i)] In electric discharge lamps having a filling of a rare gas and metal-e.g. mercuryvapour and a hollow electrode 5, some mercury is placed into the space at the bottom of the electrode ; the space is separated by a diaphragm 6, which has a hole or holes only large enough to allow the mercury to issue in vaporous condition. The gradual escape of the vapour into the discharge space replaces such mercury as is absorbed during the life of the lamp. When run on D.C. the mercury is held in the hollow anodes. As shown a capillary tube 10 is attached to the diaphragm 6; a porous plate made of sintered material such as alumina, glass, molybdenum or tungsten may form the diaphragm. The interior surface of the envelopes may be coated with luminescent material. The electrode is formed of a pot 7 held within an outer cylinder the upper end of the pot being beaded over the cylinder and welded thereto.
Patent GB-1393946-A (GB)
Title: Cameras
IPC: G03B17/20
Filed: 1972-06-12
Abstract: 1393946 Voltmeter AGFA-GEVAERT A G 12 June 1972 [11 June 1971] 27258/72 Heading G1U [Also in Division G2] A camera has a liquid crystal voltmeter for indicating the shutter speed and/or aperture to be set. As shown the voltmeter comprises glass plates 15, 16 electrodes 5, 6 and liquid crystal material sandwiched between the electrodes. Electrode 5 may be formed by parallel strips joined at opposite ends as in Fig. 3. The potential at 8 as determined by the light incident on a photo-resistor 1 is amplified at 4 and applied to electrode 5, and the liquid crystal becomes opaque over an area determined by this potential to indicate the correct shutter speed on a scale located behind the voltmeter or etched on plate 16. Exposure factors e.g. film speed are taken into account electrically or by means of grey wedges 10, 11 introduced in front of photo-resistor 1 or by moving the scale relative to the voltmeter.
Patent GB-864058-A (GB)
Title: Electronic regulator for welding apparatus
IPC: B23K11/24
Filed: 1957-08-29
Abstract: 864,058. Automatic control systems for welding apparatus. REGIE NATIONALE DES USINES RENAULT. Aug. 29, 1957 [Sept. 29, 1956], No. 27268/57. Class 38 (4). In an electronic regulator for welding apparatus a pair of thyratron-controlled ignitrons are connected in the welding transformer primary circuit and a phase-shifting device, responsive to electrode voltage, controls the thyratrons. The electrodes 10 of a spot welder are clamped to the workpieces 11 and connected to the secondary winding of the welding transformer 1. A D.C. voltage representative of the P.D. across the electrodes is obtained from block 20 and applied across capacitor 44, to which is applied also a reference voltage from source 41, 42, 43. The capacitor 44 is in the grid circuit of reversely connected triodes 45 which, with capacitor 34 and tapped secondary winding 31 of a transformer 30, comprise an A.C. bridge, primary winding 33 of a further transformer being across the output diagonal. Variation of the electrode P.D. varies the A.C. resistance of triodes 45 and produces a phase change in the voltage across primary winding 33 which, through associated secondary windings 61, 62, is referred to the grid circuits of thyratrons 63, 64. The control of the thyratron firing times resulting therefrom produces corresponding control of the ignitrons 51, 52, reversely connected in the welding transformer primary circuit.