baber/WOPTO huggingface dataset:
Patent GB-933672-A (GB)
Title: An outlet nozzle for a ramjet engine
Inventor: RAVEL MAURICE
IPC: F02K9/97
Filed: 1961-11-06
Abstract: 933,672. Ram jet engine-propulsion nozzles. NORD-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Nov. 6, 1961 [Feb. 23, 1961], No. 39654/61. Class 110 (3). The invention relates to means for facilitating the starting of a ram jet engine and comprises the provision of a destructible, constricted, outlet nozzle serving as the initial jet pipe outlet, the nozzle being adapted to be melted by the heat of the exhaust gases within a predetermined time after the engine is ignited so as to leave the permanent outlet nozzle whose outlet area is greater than that of the destructible nozzle. The assembly shown in Fig. 1 comprises a ram jet nozzle 1 of convergent-divergent form having a convergent portion 3 and a throat 5, there being disposed therein a destructible nozzle 2 of convergent form, the outlet 4 of which is of smaller cross-sectional area than the throat 5 of the permanent nozzle. The nozzle 2 is disposed against the convergent portion 3 of the permanent nozzle and is secured by means of bolts 7 passing through the cylindrical wall portion of the permanent nozzle and through a cylindrical extension 6 of the destructible nozzle. A row of holes 8 is formed in the destructible nozzle 2, the nozzle first failing in the region of the holes when the ram jet unit comes into operation. The destructible nozzle is formed of material having a low-melting point such as magnesium alloy. In a second embodiment, the convergent destructible nozzle is disposed wholly within the cylindrical portion of the permanent nozzle. In Fig. 2 the destructible nozzle is supported within the permanent nozzle 1 by means of springs 9, while in Fig. 3, the destructible nozzle is supported within the permanent nozzle by means of studs 10, 11. In a further embodiment, Fig. 4, the permanent nozzle is of convergent form and the destructible nozzle comprises a correspondingly convergent portion 12 and a second portion 13 of greater convergence, the destructible nozzle being supported within the permanent nozzle by means of tension springs 9a. In a further embodiment similar to Fig. 3, the circumferential row of holes 8 is replaced by rows of holes extending along generatrices of the destructible nozzle.
Patent GB-892963-A (GB)
Title: Multi-cylinder hydraulic pumps
Inventor: NORTON HENRY
IPC: F04B49/02
Filed: 1958-12-09
Abstract: 892,963. Reciprocating pumps. NORTON TOOL CO. Ltd., Dec. 8, 1959 [Dec. 9, 1958], No. 39728/58. Class 102(1). A multicylinder reciprocating pump, as shown having three plungers 11, 12, 13, is provided with members 27, 28, 29 mounted on a shaft 30 which upon actuation of the shaft sequentially actuate push rods to prevent the inlet valves closing thus reducing the pump delivery. The shaft 30 is actuated by a piston member 32 in accordance with the pump delivery pressure fed through a pipe 34. The plungers are actuated by a cam shaft 17 driven from an electric motor and having a fly wheel mounted on the shaft.
Patent GB-1049727-A (GB)
Title: Improvements in reciprocating piston machines
IPC: F02B75/02
Filed: 1964-09-30
Abstract: 1,049,727. Pistons. D. C. BLANCHARD. Sept. 28, 1965 [Sept. 30, 1964; Oct. 5, 1964; Nov. 4, 1964 (2)], Nos. 39728/64, 40543/64, 45064/64 and 45065/64. Heading F2T. [Also in Division F1] The pistons 1 in an I.C. engine, pump or compressor are of elongated rectangular crosssection with the direction of elongation extending transversely of the cylinder row. Sealing strips 11 mounted in grooves in the pistons are biased against the cylinder walls by spring strips of corrugated or bowed form.
Patent GB-1175637-A (GB)
Title: A Pulse Distributor
Inventor: BATURA STANISLAV EMMANUILOVICH
IPC: H03K5/15
Filed: 1968-08-20
Abstract: 1,175,637. Pulse distributers. S. E. BATURA, V. A. MORSCHAKOV, E. A. GERSHENZON, and V. I. DENISKO. 20 Aug., 1968, No. 39798/68. Heading G4A. A pulse distributer comprises a sequence of flip-flops and associated coincidence circuits, an output of each flip-flop being connected to an input of the preceding flip-flop through the respective associated coincidence circuit. AND gates 9-16 are energized sequentially to turn on the associated flip-flops 1-8 and simultaneously produce outputs on distribution leads such as 23-25. Assuming flip-flop 1 is on and the others off then the on output from 1 marks input 21 and the off output from 3 marks input 22, whereupon AND gate 10 responds to a pulse from input 19 to turn 2 on and simultaneously pulse output 25. AND gate 11 responds to the next (anti-phase) pulse on 18, whereas AND gate 9 is inhibited by the absence of a marking on its input 24. The chain builds up until flip-flop 8 turns on to energize resetting device 17 which restores all flip-flops.
Patent GB-1217790-A (GB)
Title: Control by trigger circuit
Inventor: DUDDRIDGE GEOFFREY
IPC: H02K33/00
Filed: 1968-08-21
Abstract: 1,217,790. Electric supply systems; electric converting systems. STANDARD TELEPHONES & CABLES Ltd. 21 Aug., 1968, No. 39924/68. Headings H2F and H2H. A circuit arrangement for controlling the supply of A.C. to a load via a single controlled rectifier has gate control means for triggering said controlled rectifier into a conducting condition at a submultiple of the supply frequency. As shown the gate control means is a capacitor C2 with a diode D4 and resistor R3 providing a unidirectional changing path from the supply, having a time constant in excess of one half cycle of the supply. When the capacitor is charged to the breakdown voltage of a diode D5 the capacitor discharges through the diode D5 and resistor R4 to fire the controlled rectifier S3.
Patent GB-1066334-A (GB)
Title: Photographic colour images
Inventor: MONBALIU MARCEL JACOB
Filed: 1963-10-10
Abstract: Novel compounds of the formula <FORM:1066334/C2/1> wherein R is an alkyl radical and R1 is a phenyl or a substituted phenyl group may be obtained as described in Specification 1,007,847 (e.g. by reaction of a 1-aryl-3-amino-2-pyrazoline-5-one with the corresponding isocyanate).  The substituents on the phenyl group may be alkyl, alkoxy, phenyloxy, halogen, alkylsulphonyl, arylsulphonyl, sulphamyl or N-alkylsulphamyl groups.
Patent GB-816998-A (GB)
Title: Improvements in folding chairs
IPC: A47C4/14
Filed: 1957-12-27
Abstract: 816,998. Folding chairs. ARDEC CHAIR FACTORY Ltd., and THORNE, R. P. Dec. 27, 1957 [March 28, 1957], No. 40192/57. Class 52(2) A folding chair with a rectangular frame having side members 1, constituting the front legs and supporting the back and a seat 4 mounted on side members 6, formed with slots 7 engaging pivot pins 8 secured to members 1 has the seat also pivoted to struts 9 pivoted in turn to members 1 and the back legs of the chair are constituted by a pair of struts 13 pivoted to members 1 and slotted side members 15 pivoted to the struts 13 and engaging pivot pins 16 on members 1. To facilitate stacking the folded chairs side members 1 are convex on the front and concave on the back so that the parts on adjacent chairs interfit. Specification 607,262 is referred to.
Patent GB-918934-A (GB)
Title: Improvements in recovery of high purity copper from copper scrap
IPC: C25C1/12
Filed: 1960-11-23
Abstract: Cu is recovered from scrap containing Sn as a contaminant by (1) alternately wetting the scrap with a non-oxidizing acid and exposing the acid-wet scrap to an oxidizing medium, (2) oxidizing the Sn in the Cu-enriched acid solution to form an insoluble Sn compound, (3) separating the precipitate from the solution by settling or filtration and (4) electrolysing the solution to recover Cu.  The non-oxidizing acid is preferably sulphuric acid at 110-150 DEG  F.; after wetting the scrap is drained before treatment with warm air as the oxidizing medium.  Oxidation of the Sn in the acid solution may be by addition of hydrogen peroxide, alkali peroxide or ammonium persulphate or may be performed electrolytically.  The final electrolysis stage may produce cathode Cu or Cu powder.
Patent GB-971902-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: MATTHEWS ERIC CHARLES
IPC: F22B1/06
Filed: 1959-11-27
Abstract: 971,902. Tube-type heat exchangers for heating feed-water or generating steam. INTERNATIONAL COMBUSTION (HOLDINGS) Ltd. Nov. 24, 1960 [Nov. 27, 1959], No. 40454/59. Headings F4A and F4S. In an apparatus for heat exchange between two fluids, one fluid passes from an inlet header 7, through U-tubes 12 to an outlet header 9 (Fig. 1b). Field-type tube elements 15, 16 (see also Fig. 3) for the other fluid extend into one limb portion of each of the tubes 12 and this second fluid flows from an inlet header 26 (Fig. 1a) through connecting tubes 31 to tubes 16 (see Fig. 5) from which it enters tubes 15 in heat exchange with the first fluid. From the tubes 15 the second fluid passes through tubes 28 of relatively large cross-section, and then through tubes 14<SP>1</SP> leading to further field-type tube elements 13, 14 in the other limbs of the tubes 12. After passing first through the inner tubes 14 of these elements and then through their outer tubes 13 in further heat exchange with the first fluid, the second fluid enters the outlet header 24. A casing 11 containing an inert gas surrounds the heat exchange zone of the apparatus. In the application described, hot liquid sodium from a nuclear reactor flows in the tubes 12 and heats feed-water flowing in the tubes 13, 15, &c. Two of the heat exchangers may be interconnected in series, steam being produced in at least the final part of the second heat exchanger.
Patent GB-1463100-A (GB)
Title: Breeding cage for small animals
IPC: A01K1/03
Filed: 1974-09-17
Abstract: 1463100 Breeding cage BEHRINGWERKE AG 17 Sept 1974 [17 Sept 1973] 40534/74 Heading AIM A cage for breeding small animals comprises a thermoplastics open-topped rectangular box 1 having a curved flange 2 at its upper edge, a base and walls containing apertures 3, 4, 5, 6, rounded edges and corners and can be divided into two regions by a partition wall inserted into grooves 7. Each of these two regions has an aperture 5 for water-supply and an aperture 4 through which may be passed a food container and which is closable by slide 8 having bolts 9 sliding in slots 6. The base and one side wall have ventilation slots 3. The walls may slope slightly outwardly in the upwards direction, so that several cages can be stacked. A nesting box (Fig. 4) comprises a shallow tray having elongated projections 11 on its base, which engage in base slots 3 when the box is placed in one part of the tray. The nesting-box has recess 12 to accommodate food container passed through aperture 4.
Patent GB-963122-A (GB)
Title: Process for preparing aromatic disulfide
Filed: 1962-10-29
Abstract: Aromatic disulphides are prepared by reacting a thiophenol with oxygen in the presence of alkali and as a catalyst, a water-soluble metal phthalocyanine or an alkaline neutralised water-soluble salt thereof. The metals in the phthalocyanine complex may be manganese, nickel, vanadium, copper, zinc and tin. Specified catalysts are cobalt phthalocyaninedisulphonic acid, cobalt phthalocyaninetrisulphonic acid, and chloroferric phthalocyaninedisulphonic acid. In an example sodium o-amino-thiophenolate is oxidised with air or oxygen using cobalt phthalocyaninedisulphonate as catalyst to produce 2,21-diamino-diphenyldisulphide.
Patent GB-1506301-A (GB)
Title: Vibration damped spur gear drives
IPC: F16H57/00
Filed: 1975-10-06
Abstract: 1506301 Toothed gearing ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG 6 Oct 1975 [5 Oct 1974] 40859/75 Heading F2Q In a spur gear train 11, 13, 14, 15, for driving a printing press, rotary oscillations detrimental to the printing process which might arise from backlash and from inevitable irregularities of tooth contour are prevented or damped by the provision of additional frictionally-engaging wheels 16, 17 and 19, 20, 22, coaxially with the spur wheels, each mating pair of friction wheels comprising one member, 16, 19, 22 with a non- elastic periphery e.g. of hardened steel, and another member 18, 20, with a periphery covered by an elastic material, e.g. rubber or a synthetic rubbery material. The diameters of these members may differ from the pitch circle diameters of the corresponding spur wheels, the non-elastic member preferably having an increased diameter. The resulting relative slippage of the elastic member has-the effect of increasing or decreasing the spur wheel tooth pressure. The peripheral portions of both elastie and non-elastic members may be detachable, Fig. 2. The elastic surface may have curved  crowning or circumferential grooves, or it may be composed of several layers, e.g. an outer less elastic layer of wear-resistant material, over a layer of a materialof higher elasticity.
Patent GB-893494-A (GB)
Title: Production of shaped structures, particularly filaments, of synthetic organic linear polymers
IPC: D02J1/22
Filed: 1958-12-18
Abstract: Shaped structures are produced by melt-extruding a synthetic linear orientable crystallisable organic polymer, solidifying the molten extrudate by cooling for example, by passing the extrudate first through air and then through a quench tank at room temperature, to obtain an elongated undrawn solid structure such as a filament or film, heating the resulting structure without tension to a temperature within the range at which the rate of crystallisation is substantially at its maximum, to produce a substantial increase in crystallinity, and drawing the structure in the solid state.  The polymer may be a condensation polymer having an inherent viscosity of at least 0,9.  It may be a polyamide, a polyester or a polyethylene. The structure may be heated before drawing to a temperature between 50 DEG  and 75 DEG C. below the melting point of the polymer, e.g. to between 160 DEG  and 210 DEG C., and the heating period may be 5-60 seconds.  The crystallinity of the material may be increased from 10% up to 70%.  In an example, a polyethylene terephthalate filament having an inherent viscosity of 0,90 is heat treated without tension at 173 DEG -175 DEG C. for 0,18 minute, drawn at a draw ratio of 6:1 and heat-set at 190 DEG C. for 15 minutes.  The process enables higher draw ratios to be used.  Specifications 520,263, 578,079 and 603,840 are referred to.
Patent GB-1133822-A (GB)
Title: Spool mounting arrangement for magnetic recorder
Inventor: FINDEISEN HEINZ HELMUTH
IPC: G11B15/66
Filed: 1965-09-27
Abstract: 1,133,822. Tape reels. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. 26 Sept., 1966 [27 Sept., 1965], No. 40961/65. Heading B8M. [Also in Division G5] A tape spool is drivingly engaged with a driven hub on a tape recorder by spring-biased pins 20 which engage in a circumferential groove 30 in the bore of the spool and urge the spool into frictional contact with a flange 12 on the hub. The contact is improved by a facing 31 of frictional material. The pins are biased by rubber ring 22, and the spool bore is formed with a flared portion 29, which pushes the pins inwards as the spool is pushed on to the hub, and two portions 27, 28 on either side of the groove 30 which are a good fit on the hub 13.
Patent GB-1504352-A (GB)
Title: Alpha-(1,2,4-triazolyl or imidazolyl)-acetophenones and their use as pesticides
IPC: C07D249/10
Filed: 1975-10-09
Abstract: 1504352 α - (1,2,4 - Triazolyl or imidazolyl)- acetophenones IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1976 [9 Oct 1975 7 May 1976 20 Aug 1976] 41449/75 18972/76 and 34836/76 Heading C2C α - (1,2,4 - Triazolyl or imidazolyl) - acetophenones of general formula where Y is =N- or =C(R)-; each of R, R 1  and R 2 , same or different, are H, halogen, nitro or alkyl; R 3  is H or furyl, thienyl or hydrocarbyl optionally substituted by halogen, acyloxy, cyano, hydroxy, nitro, alkoxy or optionally halo-substituted alkyl; R 4  is H, halogen, nitro, phenyl, alkoxy or optionally halo-substituted alkyl; n is 1-5, each of the R 4  groups being the same or different when n>1; Z is -CO- or a derivative thereof, or a salt of such a compound, are prepared (a) by reacting a compound of general formula with an aldehyde R 3 CHO or (b) by dehydrogenating a compound of general formula Amongst numerous examples the compounds 1 - (1,2,4 - triazolyl - 1 - yl) - 1 - p - chlorophenacylstyrene and 1 - imidazol - 1 - yl - 1- phenacyl-o-fluorostyrene are produced. Fungicidal compositions comprise a compound of Formula I as active ingredient together with a carrier.
Patent GB-990449-A (GB)
Title: Compressing means for socket pipes
IPC: F16L1/09
Filed: 1963-10-22
Abstract: 990,449. Pipe-jointing tools. K. E. NILSSON. Oct. 22, 1963, No. 41583/63. Heading F2G. A tool for pressing together socket pipes or the like comprises pull rods 5 mounted in a yoke 3 arranged to be placed behind the socket of a ready-laid pipe 1 with the engagement points substantially diametrically opposite each other, a lever 7 having one or two rollers, on a shaft 8, adapted to press against the end of the pipe 2 to be laid and able to run on it, the pull rods being pivotal in such a manner around an axis through their bearing points 4 that, on pivoting the lever and causing movement of the pressing rollers, central compressive force arises in the pipe.
Patent GB-1100656-A (GB)
Title: Jet propulsion nozzle
Inventor: PIKE MALCOLM ROY
IPC: F02K1/12
Filed: 1965-10-04
Abstract: 1,100,656. Jet propulsion nozzles. ROLLS-ROYCE Ltd. Sept. 27, 1966 [Oct. 4, 1965], No. 42070/65. Heading F1J. A jet propulsion nozzle comprises an upstream set of pivoted flaps 21 and a downstream set of pivoted flaps 22, the downstream ends of the upstream flaps always being disposed adjacent to the upstream ends of the downstream flaps. The sets of flaps are movable between two positions in one of which, Fig. 3, the nozzle is of convergent form with the throat at the downstream end of the downstream flaps, and in the other of which, Fig. 2, the nozzle is of convergent-divergent form with the throat at the downstream end of the upstream flaps. Means are provided for supplying a stream of air to flow downstream over the internal surface of the downstream flaps. The upstream flaps 21 are pivotally mounted at the end of an inner wall 23 of the jet pipe, while the downstream flaps 22 are pivotally mounted at the downstream ends of outer flaps 20 which are pivotally mounted at their upstream ends at the end of the outer wall 15 of the jet pipe. A connecting member 25 is provided between the adjacent ends of the flaps 21, 22, the parts being arranged so that an annular gap 26 is formed between the ends of the flaps when the nozzle is of convergent-divergent form but no such gap being provided when the nozzle is of convergent form. A supply of cooling air is arranged to flow through the annular space 32 through a one-way valve 31 into the space 24 thence through the annular gap when the nozzle is in the convergentdivergent form.
Patent GB-1331154-A (GB)
Title: Methods of introducing fuel into an internal combustion engine and devices therefor
IPC: F02B19/02
Filed: 1971-09-09
Abstract: 1331154 Pre-combustion chambers A G A NILSSON 9 Sept 1971 [10 Sept 1970] 42219/71 Heading F1B Method of introducing fuel into the combustion chamber of an engine, comprises introducing a quantity of fuel sufficient for one power stroke into a small closed space near the combustion chamber, communication being established between this space and the combustion chamber at the end of the compression stroke to admit air to the space for mixing with the fuel and ejecting this to the chamber so that the mixture is ignited, the pressure in the space being reduced before further fuel is fed in. An engine for carrying out the method consists of a cylinder containing a piston 14 and having a combustion space 8. A cam shaft 9' controls the movement of an inlet valve 1 and an exhaust valve, (not shown). A third valve 3, controlled by a cam 15 on a camshaft 9 opens and closes the port 7 between the combustion chamber and a space 5 into which the fuel is injected from a pipe 6 via a non-return valve 16. When the valve 3 opens, compressed air enters the space 5 and ejects the fuel into the combustion chamber where it ignites. The valve remains open throughout the power and exhaust strokes and during the early part of the induction stroke, so that there is a low pressure in the space 5 when the valve closes, and the injection of fuel is against this low pressure. Fig. 4 shows a Diesel engine modified to use the invention. The normal fuel injection nozzle is replaced by an assembly consisting of a sleeve 65, a valve 3', a valve guide 54 and a clamping bush 55. The valve is opened in an upward direction by a cam 51 on an overhead cam-shaft 50 and is closed by a spring 58. The space 5' around the valve stem corresponds to the space 5. Fuel is injected through a bore 63 in the cylinder head and an opening 64 in the sleeve. The valve may be cooled by providing air inlet ports 71 connected by a passage including a cam-operated valve to the engine intake system.
Patent GB-978610-A (GB)
Title: Process for the purification of polyolefins
IPC: C08J11/02
Filed: 1963-10-25
Abstract: Polyolefins are purified by contacting the polymers with an organic solvent to remove catalyst impurities therefrom, separating from the polymer the solvent containing the impurities, and contacting the separated solvent with a macroreticular, non-aqueous, ion-exchange resin to remove impurities from the solvent.  The organic solvent may be an alcohol, or a mixture of an alcohol and hydrocarbon, e.g. methanol, ethanol, 1-propanol, 2-propanol, butanol, hexane, heptane, benzene, and cyclohexane. Other solvents are ketones, esters, and chlorinated hydrocarbons. The polymer may be a homopolymer of ethylene, propylene, methylbutene, or styrene. The ion-exchange resin is preferably a cross-linked copolymer of styrene and divinyl benzene containing cationic, or anionic groups. The catalyst residues are derived from Ziegler-Natta-type catalysts e.g. TiCl3+Al(C2\H5)2\Cl.
Patent GB-972967-A (GB)
Title: A process for the manufacture of benzodiazepine derivatives
IPC: C07C45/00
Filed: 1960-12-09
Abstract: Compounds of the general formula <FORM:0972967/C1/1> (wherein R represents an alkyl, alkenyl or aralkyl group, R1 represents an alkyl, alkoxyalkyl, aryl, hydroxy-aralkyl, alkylthioalkyl or hydroxyalkyl group, R2 represents an alkyl, alkoxy or trifluoromethyl group or a halogen atom, R3 represents a trifluoromethyl, alkyl, alkoxy, alkylthio, hydroxyalkylthio, nitro, amino, alkylsulphinyl, alkylsulphonyl, hydroxy or acylamino group or a halogen atom and R4, which can only be present if R3 is other than trifluoromethyl, represents any of the values of R3 except the latter value and wherein the broken lines denote that the R groups or atoms attached thereto are optional) and acid addition salts thereof are prepared by reacting a benzophenone derivative of the general formula <FORM:0972967/C1/2> or a salt thereof with a strong acid with an a -amino acid of the general formula <FORM:0972967/C1/3> or an ester thereof or a salt of the amino acid or ester with a strong acid and, if desired, in the case where a nitro, amino or acylamino group is required in the product but was absent in the benzophenone starting material, subjecting the product to one or more of the steps nitration, reduction of the nitro group and acylation of the amino group or, where one or two amino or acylamino groups are required in the product but only the corresponding nitro or amino groups were present in the benzophenone starting material, subjecting the product to reduction and/or acylation and/or, if desired, converting the product (if basic) into an acid addition salt, the process being carried out in the presence of a base when both starting materials are used in the form of salts. Specifications 972,968, 972,971, 972,972, 972,973 and 972,975 are referred to.