baber/WOPTO huggingface dataset:
Patent GB-193393-A (GB)
Title: Improvements relating to railway points or switches
IPC: E01B7/20
Filed: 1923-02-07
Abstract: 193,393. Lahey, D. E. Feb. 18, 1922, [Convention date]. Point tongues, mounting of; foot-guards. -To provide a foot-guard and prevent vehicle couplings fouling the points, a block is arranged between the point tongue and stock rail and a portion of it is secured to and moves with the point tongue. As shown, the block is in two sections 3, 3a, the section 3<a> being secured with a filling- block 5 to the stock rail 1. The blocks 3, 3a are bevelled longitudinally and transversely, and have an inclined ramp 13 at one end, and are secured by countersunk bolts. The block 5 is bevelled at each end and has a recess 11 at its front end.
Patent GB-347326-A (GB)
Title: A process for the production of fertilizers from superphosphate
IPC: C05B1/06
Filed: 1930-02-04
Abstract: A fertilizer comprising dicalcium phosphate and ammonium sulphate, and to which other ammonium or potassium compounds may subsequently be added, is produced by treating superphosphate with ammonia, advantageously at low temperatures, and reacting upon the product, for instance at 35-55 DEG  C. with ammonium carbonate or bicarbonate in the presence of only a small quantity of water, or with carbon dioxide, ammonia and steam.  The reactions may be effected under pressure.  The neutralization of the superphosphate with ammonia may also be conducted in the presence of gaseous or dissolved ammonium carbonate or bicarbonate so that a single stage process is effected. The use of only a small quantity of water is essential, so that a readily distributable fertilizer is immediately obtained.ALSO:A fertilizer comprising dicalcium phosphate and ammonium sulphate, and to which other ammonium or potassium compounds may subsequently be added, is produced by treating superphosphate with ammonia, advantageously at low temperatures, and reacting upon the product, for instance, at 35-55 DEG  C. with ammonium carbonate or bicarbonate in the presence of only a small quantity of water, or with carbon dioxide, ammonia, and steam.  The reactions may be effected under pressure.  The neutralization of the superphosphate with ammonia may be also conducted in the presence of ammonium carbonate or bicarbonate, so that a single stage process is effected.  The use of only a small quantity of water is essential, so that a readily distributable fertilizer is immediately obtained.
Patent GB-670171-A (GB)
Title: Improvements in or relating to carburetors for internal combustion engines
IPC: F02M3/08
Filed: 1949-02-10
Abstract: 670,171. Spray carburetters. BENDIX AVIATION CORPORATION. Feb. 10, 1949 [Feb. 17, 1948], No. 3706/49. Class 7(iii) A carburetter idling system comprises a well 58, fed with fuel at the top thereof by a passageway 60, and an idling fuel conduit 68 extending downwardly to a point near the bottom of the well 58, an orifice 80 connecting the passage 60 to the float chamber 22 being controlled by a valve 82 which is held open when the engine is not running to permit escape of vapour from the top of the idling well. The orifice 80 comprises the power enrichment jet and the valve 82 is controlled by a suction actuated piston 94 which opens the valve at high power and when the engine is not running. The fuel from the main fuel nozzle 32 emerges beneath a bar 50 extending across the throat of a Venturi 30 and formed with ears 52, 54 to prevent the fuel dribbling along the bar. A bead 56 on the bar concentrates the discharge of fuel from the bar in the centre thereof, and other grooves and projections may be positioned at suitable points. The fuel is aerated in a well containing a perforated sleeve 34, and the pipe 68 feeding the idling orifices 64, 66 passes through the fuel in the float chamber 22 and is provided with an aerating air hole 70. Further aerating air is added to the idling fuel by an orifice 72. An acceleration pump 104, actuated from the throttle valve by a connection 106, discharges past a ball valve 118 through a passage 114, an air inlet 116 preventing the suction in the passage 114 drawing fuel from the pump chamber.
Patent GB-130104-A (GB)
Title: Improvements in or relating to Radiators for Internal Combustion Engines.
Inventor: CUAU CHARLES
IPC: G06C11/04
Filed: 1918-03-02
Abstract: 130,104. Cuau, C. April 3, 1917, [Convention date]. Plate apparatus.-Hollow plate elements for motor-car, aircraft and like radiators are made of very thin metal walls 3 strengthened at the edges by rigid internal members 2 and supported internally by thin corrugated metal sheets 1. The parts may be united by lining the metal walls 3 with thin layers of tin, and heating the whole while pressure is applied to the surfaces. The rigid frame members 2 are shaped so as to present a rounded edge in the direction of motion or opposite to the flow of air, and a sharp edge towards the rear. The elements may be constructed as shown in Fig. 3, so as to allow of a through water passage from a top to a bottom header, or triangular or trapezoidal elements may be combined to form plates having rigid members on three edges and on a part of the fourth, as shown in Fig. 5. An arrangement of parallel plates on each side of a divided flat header is shown in Fig. 8. The front and rear edges of the header are rounded and sharp respectively, and the water follows the direction indicated. The plates may be arranged radially around a central supply and discharge pipe, or may depend from a divided top header having inlet and outlet connexions.
Patent GB-981142-A (GB)
Title: Phosphonitrilic esters and their preparation
Inventor: JONES JANET ELIZABETH
IPC: C08G79/025
Filed: 1963-01-30
Abstract: Phosphonitrilic esters are prepared by reacting an alcohol with a phosphonitrilic halide in the presence of an alkali metal carbonate. An organic solvent may be used.  Temperatures of 60-120 DEG  C. are mentioned.  Some or all of the halogen may be replaced by ester groups.  Suitable phosphonitrilic halides include: those of formula (PNX2)n where the halogen atom X may be Cl, Br or F and n is an integer not less than 3 and preferably not greater than 20 and mixed halides of this type; phosphonitrilic halides containing other end groups such as those of types (PNX2)pHCl and (PNX2)p.PCl5 (p = an integer); cyclic structures having at least two fused polyphosphazene rings such as 2,2,4,6,6,8,10,10,12 - nonachloro - (4,8,12-nitrilo) - 2,4,6,8,10,12 - cyclohexaphosphazene; and alkyl or phenyl substituted phosphonitrilic halides.  Mixtures of halides may be used. Suitable alcohols include monohydric, dihydric and higher polyhydric alcohols and polyalkylene glycols, many examples being given.ALSO:Phosphonitrilic esters of polyalkylene glycols are prepared by reacting the glycol with a phosphonitrilic halide in the presence of an alkali metal carbonate.  An organic solvent may be used. Temperatures of 60-120 DEG  C. are mentioned.  Some or all of the halogen may be replaced by ester groups.  Suitable phosphonitrilic halides include:  those of formula (PNX2)n where the halogen atom X may be Cl, Br or F and n is an integer not less than 3 and preferably not greater than 20 and mixed halides of this type; phosphonitrilic halides containing other end groups such as those of types (PNX2)pHCl and (PNX2)pPCl5 (p=an integer); cyclic structures having at least two fused polyphosphazene rings such as 2,2,4,6,6,8,10,10,12 - nonachloro - (4,8,12 - nitrilo) - 2,4,6,8,10,12 - cyclohexaphosphazene; and alkyl or phenyl substituted phosphonitrilic halides.  Mixtures of halides may be used. Suitable polyalkylene glycols are diethylene, triethylene, polyethylene and corresponding propylene glycols, and glycerol-based polyoxyalkylene triol.  In Example 7 a dipropylene glycol based epichlorohydrin-propylene oxide copolymer is reacted with a mixture of trimeric and tetrameric phosphonitrilicchlorides in the presence of Na2CO3.
Patent GB-1406124-A (GB)
Title: Web dispenser
IPC: A47K10/36
Filed: 1973-01-25
Abstract: 1406124 Dispensing web material K WALKER 25 Jan 1973 [31 Jan 1972 26 Feb 1972] 3873/73 Heading B8M [Also in Division B4] A storage and dispensing container 1 for a web 3, e.g. a fleecy web impregnated with pharmaceutical or cosmetic liquid, comprises a dispensing slit 2 and spaced from the slit a cutting device constituted by a knife edge 4 and a support 5 consisting at least partially of resilient material. As described the container 1 is generally cylindrical with one fixed and one removable end wall. The end walls have internal ridges 25 to receive and guide the axle of a roll of web 3, and external recesses to receive journals provided on the end walls of a cover 6 pivoted in this way to the container. The cover is snapped into place and prevents removal of the removable end wall. The cover may carry the knife edge or support and the container may carry the complementary member. The support preferably includes a strip 8, e.g. of foam rubber, and this may have a groove to receive the knife edge. The knife edge may be serrated or corrugated and of plastics or metal. The cover may be spring urged towards the container. The web may be in the form of a folded stack and may be impregnated whilst in the container.
Patent GB-910431-A (GB)
Title: Distance projection means for a three-phase network
IPC: H02H1/00
Filed: 1961-02-02
Abstract: 910,431. Protective cut-out arrangements. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 2, 1961 [Feb. 4, 1960], No. 3939/61. Class 38 (5). A distance protective arrangement for a three-phase network comprises two induction or electronic directional elements, one responsive to three-phase short circuits and the other to two-phase short-circuits. In the arrangement of Fig. 1, induction relays 1, 2 each have a winding 1a, 2a energized by a component derived from the voltage obtained from an autotransformer 10 connected between phases R, S and the voltage across an impedance 4 which is a replica of the impedance of the protected zone and comprises a resistor 8 and transformer 6 with primary windings energized in opposition by the currents IR, IS of the phases R, S. A second winding 1b of the relay 1 is similarly energized by a component derived from autotransformer 9 connected across phases S, T and the replica impedance 3 comprising resistor 7 and transformer 5 energized by currents IS, IT. The second winding 2b of the relay 2 is energized by the voltage between phases R and T. In Fig. 2, the directional elements comprise gate circuits 11, 15, e.g. vacuum valves, energized by their respective components through square-wave voltage shapers 12, 14 and 16 and a differentiating circuit 13, the shaper 14 and circuit 13 being common to both elements and producing short pulses which energize a tripping relay U when the pulses fall within the half-cycles of the square-wave voltage of the same polarity applied to either element 11 or 15 from the shaper 12 or 16. Fig. 3 (not shown) illustrates a four zone protective system using the arrangement of Fig. 2. In this system one voltage shaper 16 may supply the appropriate elements of all four zones and the tripping relay associated with the elements having the longest reach may control a timing element.
Patent GB-1179812-A (GB)
Title: Improvements in or relating to Copolymers and Adhesives containing such Copolymers
Inventor: SMITH JOHN FREDERICK
IPC: C08F236/16
Filed: 1968-01-25
Abstract: 1,179,812. Chloroprene terpolymers. E. I. DU PONT DE NEMOURS & CO. 25 Jan., 1968 [25 Jan., 1967; 18 Dec., 1967], No. 3968/68. Heading C3P. A copolymer contains units derived from chloroprene, units derived from an ethylenically unsaturated carboxylic acid to give 0À25 to 0À6% by weight of carboxyl groups in the polymer, and 3-30 mole per cent units derived from at least one other ethylenically unsaturated monomer copolymerizable therewith, and as much sulphur as is provided by polymerizing in the presence of 0À4 to 1À5% by weight of sulphur based on monomer. Terpolymers of chloroprene, 2,3-dichlorobutadiene, and methacrylic acid are prepared by conventional aqueous emulsion techniques in the presence of sulphur.
Patent GB-670707-A (GB)
Title: Method of and apparatus for the manufacture of flattened tubing from thermoplastic materials
IPC: B29C48/09
Filed: 1949-02-14
Abstract: Extruded thermoplastic tubing, e.g. polyethylene tubing, is passed through a pleating die G and blown into shaping contact with the walls of the die by internal air pressure to form continuous longitudinal tucks or pleats in the tube, the pleated tube being finally flattened by pulling rolls and wound on a reel. The die G <PICT:0670707/IV (a)/1> comprises a top plate 31, which may be transparent, a bottom plate 30 and two pairs of tapering side members 32, 33, the members 32, 33 at each side having a blade 35 between them.  The blades 35 form the tucks in the tubing.  The assembly is secured together by bolts 34 and the members 32, 33 and 35 are laterally adjustable to the positions for obtaining regular tucking and flattening of the tube to the desired final form.  The adjustment of members 32, 33 is facilitated by yokes 37 which are clamped to the die G and carry bolts 39a, 39b, for pushing the members 32, 33 inwardly.  Means for pulling them out may also be provided.  Two yokes, one at each end, may be provided at each side, or one only which is moved as necessary.  Similar means may be provided for adjusting the pleating blades 35 within the limits provided by slots 36 through which the bolts 34 pass.  As described, the tubing before entering the die G is expanded, cooled, sized, and partly flattened in the manner described in Specifications 664,412 and 670,708.
Patent GB-868087-A (GB)
Title: Method of producing magnetisable sheet or strip from iron alloys containing silicon
IPC: C22C38/02
Filed: 1958-02-07
Abstract: 868,087. Making sheet; altering molecular structure. VEREINIGTE DEUTSCHE METALLWERKE A.G. Feb. 7, 1958 [Feb. 16, 1957], No. 4130/58. Classes 83 (2) and 83 (4). A method of producing high-grade magnetic strip or sheet having a pronounced cubic texture wherein the strip or sheet is, if necessary, subjected to a preliminary heat treatment, is then submitted to a refining heat treatment, is then cold-rolled in one or several stages and in the latter case subjected to intermediate heat treatments and is finally subjected to a final heat treatment, is characterized in that the strip or sheet is an iron alloy selected to contain between 0.5 and 2.5% silicon and, if desired, between 0.1 and 1.0% nickel and an alloying addition of aluminium, that the number of passes in the final cold-rolling stage does not exceed 10 and that the thickness of the rolled strip or sheet is between 0.2 and 0.5 mm. The refining heat treatment is carried out at about 1000‹ C. in a vacuum or in an atmosphere of hydrogen. The nickel may be wholly or partly replaced by chromium, cobalt, manganese, copper, zinc or vanadium. The cold rolling is performed unidirectionally, reversing or partly unidirectionally and partly reversing. In an example, an alloy containing 2.2% silicon, remainder iron, is hot-rolled into strip, submitted to a refining heat treatment and then cold-rolled in 10 passes to a reduction of 80.4%. The strip is next heat-treated at 850‹ C. for 1¢ hours. A second and last colddeformation stage is performed in 8 passes to a reduction of 73%. A final heat treatment lasted for 13 hours at 1250‹ C. and the strip exhibited an 85% by volume cubic texture.
Patent GB-747380-A (GB)
Title: Improvements in cathode ray tubes with ion traps
IPC: H01J29/84
Filed: 1954-02-12
Abstract: 747,380. Ion-trapping in cathode-ray tubes. LOEWE OPTA AKT.-GES. Feb. 12, 1954 [Feb. 16, 1953], No. 4168/54. Class 39 (1). In an ion trap the first anode comprises two perforated diaphragms 4, 8, Fig. 2, connected together by a short wire 9, the diaphragm 8 being inclined for the purpose of setting up an electrostatic field with a transverse component extending to a further electrode (not shown). The cathode 1, Wehnelt electrode 2, and first anode 4, 8 are carried in spaced relation by a ceramic cylinder 11, the disc 8 extending to the tube wall. The cathode 1 may lie on or parallel to the tube axis and wire 9 is welded to discs 4, 8. A prior art device in which the anode discs are connected by a hollow cylinder is described with reference to Fig. 1 (not shown).
Patent GB-233077-A (GB)
Title: Improvements relating to clips
IPC: F16B2/06
Filed: 1924-02-18
Abstract: 233,077. Firth, F. Feb. 18, 1924. Clips, band.-A band clip of the type having projecting flanges drawn together by a bolt has a rib a formed centrally along the flanges b as well as along or around a por. tion or the whole of the clip proper c, and washers e gapped to fit over the rib are provided for the nuts of a tightening bolt d. The invention may be applied to a multiple clip as shown in Fig. 3. Specifications 13281/87, [Class 99, Pipes &c.] ; 6177/97. [Class 136, Velocipedes] ; and 17152/03, and 197,080 are referred to.
Patent GB-699114-A (GB)
Title: An improved method of making tennis and like inflated balls
Inventor: GOY RONALD STANSFIELD
IPC: B29D22/04
Filed: 1951-02-21
Abstract: 699,114. Balls for games. DUNLOP RUBBER CO., Ltd. Dec. 31, 1951 (Feb. 21, 1951], No. 4174/51. Class 132 (ii). [Also in Group IX] In a modification of the process of covering a tennis or like inflated ball described in either of Specifications 666,468 and 699,102; the yarn after having been set in substantially square cross-section, is coated with rubber solution, temporarily mounted on a backing drum and has fibres raised from its surface by a raising fillet. The raised yarn is then stuck on to the ball core and felted. The degree of raising can be adjusted by altering the speed of the machine.
Patent GB-801737-A (GB)
Title: Improvements in the production of cycloaliphatic nitrates
IPC: C07C201/02
Filed: 1957-02-07
Abstract: Cycloaliphatic nitrates are produced by dissolving cycloaliphatic alcohols in an indifferent solvent and then treating them in this solution with nitrating acid.  A suitable temperature range for the reaction is between +20 DEG  and -40 DEG  C., preferably between -5 DEG  and -10 DEG  C.  Suitable cycloaliphatic alcohols are cyclopentanol, cyclohexanol, cyclo-octanol, cyclodecanol, decahydronaphthol, the isomers of methyl cyclohexanol and dimethylcyclohexanol and mixtures of such alcohols.  Examples of indifferent solvents are aliphatic halogenated hydrocarbons, such as chloroform, carbon tetrachloride and ethylene chloride, or aliphatic hydrocarbons, such as petroleum ether, hexane, or heptane, or cyclic hydrocarbons, such as methylcyclopentane, cyclohexane, methylcyclohexane, dimethyl cyclohexane or mixtures thereof.  The alcohol is dissolved in the solvent in a ratio of 1 part alcohol to 1, 2, 3 or more parts of solvent.  The nitrating acid is a mixture of 1 part of concentrated nitric acid to 1, 2, 3 or more parts of concentrated sulphuric acid.  The nitration may be carried out continuously by leading the reactants through a tubular coil at the desired temperature.  In examples: (1) cyclohexanol dissolved in carbon tetrachloride is introduced rapidly with stirring into a nitrating acid mixture cooled to -5 DEG  to -10 DEG  C., and the organic layer is washed with water and soda solution and fractionally distilled to obtain cyclohexanol nitrate; methylcyclohexanol nitrate and dimethylcyclohexanol nitrate are similarly obtained; (2) cyclopentanol dissolved in chloroform is nitrated as in (1) and poured on to crushed ice, the organic layer is washed with sodium bisulphite to remove cyclopentanone, then with water and soda and then is fractionally distilled to obtain cyclopentanol nitrate; cyclo-octanol nitrate is similarly obtained; (3) decahydronaphthol nitrate is obtained by the process of (1).  The products are valuable fuel additives.
Patent GB-1441568-A (GB)
Title: Electromagnetic clutch
IPC: F16D27/112
Filed: 1975-01-31
Abstract: 1441568 Electromagnetic clutches GENERAL MOTORS CORP 31 Jan 1975 [11 Feb 1974] 4211/75 Heading F2C An electromagnetic clutch comprises a subassembly consisting of a pulley 58 bolted to a rotor assembly 54 which comprises a rotor 60 and a sleeve member 66 secured to the rotor 60 and having a bearing 70 axially retained within it, a coil assembly 56 being axially retained by walls of the rotor assembly 54 and pulley assembly 58 and having a wall 108 which abuts a wall 112 of a compressor 12, when the subassembly is mounted thereon, with projections 106 engaging in recesses 110 of the wall 112, an armature plate 138 and drive plate 154 being mounted on a hub 38 of the driven shaft 16 after the sub-assembly of pulley, coil and rotor is mounted on an extension 14 of the compressor housing and retained there by a snap ring 128. The armature 138 is mounted for axial movement relative to the drive plate 154 by leaf springs 148. Armature 138 and rotor 60 have arcuate slots 142, 144, 146, these defining a sinusoidal path for the flux from the coil. In Fig. 2 is shown a damper assembly 160, secured to the driving side of the clutch by bolts 118 and having resilient material (e.g. rubber) in a ring 168 and a metal ring (e.g. of cast iron) 170 about the resilient ring 168 as shown. The compressor 12 may be part of a motor vehicle air-conditioning system.
Patent GB-1424185-A (GB)
Title: Preparation and methods of curing disease in woody subjects
IPC: A01N61/02
Filed: 1971-02-09
Abstract: 1424185 Controlling Armillaria mellea using tar acids VBP BRAY 9 May 1972 [9 Feb 1971] 4243/71 Heading ASE A method of preventing or controlling attack of Armillaria mellea on a woody plant comprises applying an aqueous emulsion of tar acids boiling above 200‹C to the plant or the ground around it.
Patent GB-114333-A (GB)
Title: Improvements in or relating to Hot-blast Stoves used in connection with Blast Furnaces.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: C21B9/10
Filed: 1917-03-24
Abstract: 114,333. Jackson, W. J. Mellersh-, (Stein et Cie, C. M.). March 24,1917. Drawings to Specification. Hot-blast stoves.-In a stove of the chequerbrickwork type for use in connexion with blast furnaces, the air or gas for combustion in the stove, or both, are preheated. A suitable form of preheater is described and consists of a stove with passages arranged similarly to those of a continuous regenerator, but heated by the combustion of gas and air Reference has been directed by the Comptroller to Specifications 4536/81 and 10204/87, [both in Class 72, Iron &c.],
Patent GB-510965-A (GB)
Title: Improvements in and relating to cardboard or like boxes or containers
IPC: B65D5/70
Filed: 1938-02-11
Abstract: 510,965. Opening cardboard containers. GREELEY, J. M., and QUAKER OATS, Ltd. Feb. 11, 1938, No. 4317. [Classes 18 and 66] A cardboard box &c. has a wall 1 constituted by a single thickness of material provided with a hinged pouring or access flap 3 outlined by a weakened line and with means for opening this flap consisting of a pilot opening closed normally by a flap 7 outlined by a weakened line or by a sealing paper covering so that a finger may be inserted behind the access flap 3. Flap 7 may be hinged at a point opposite to that shown.
Patent GB-368033-A (GB)
Title: Improvements in or relating to cigarette and like cases
IPC: B65D85/10
Filed: 1931-02-12
Abstract: 368,033. Cases for cigarette &c. cartons. ROGERS, G. A., 101, Vyse Street, Birmingham. Feb. 12, 1931, No. 4392. [Class 18.] A case of variable capacity to hold cigarette cartons &c., comprises two panels 1, two ends 2 with inturned flanges 2a which can slide on the inner faces of the panels 1, guide tongues 3 at the top and bottom of the panels 1, and stops 4 on the flanges 2a to limit the outward movement of the ends. The stops 4 consist of U-shaped channels formed on the ends of the flanges; and the edges 2b on the ends are inturned to prevent the shell of the carton being pushed out of the case. In assembling the case, the tongues 3 and the edges 3a on the panels 1 are first bent at an angle to the panels, the ends then inserted and the tongues pressed down by a tool which is cut away to clear the stops 4. The case is made of metal or other material which may be ornamented as by " engine turning," etching, or other marking.