baber/WOPTO huggingface dataset:
Patent GB-1525600-A (GB)
Title: Internal combustion engines with a methanol reforming system
IPC: F02B1/02
Filed: 1975-12-16
Abstract: 1525600 Treating charge/spray carburetters NIPPON SOKEN Inc 16 Dec 1975 [20 Dec 1974 22 Aug 1975 26 Aug 1975 28 Aug 1975] 51484/75 Headings F1B and F1H An I.C. engine, Figs. 3 or 5, is supplied with reformed gas from an air/methonal reactor 242 or 442, supplied at its normal operating temperature with an air/methonal mixture in a range 0À3:1 to 1À5:1. Below this temperature a range of 1À6:1 to 2À0:1 may be used. The reactor may contain a catalyst and be electrically or exhaust gas heated. The arrangement of the air/methonal carburetter ensures a layered charge in the vicinity of the ignition device 262 or 462 and the carburetter may have a variable choke, responsive to reactor or exhaust gas temperature, Figs. 16A, 16B, 18 (not shown). The reformed gas may be mixed with air or air and petrol in the main engine carburetter systems shown. Variants are described.
Patent GB-1464386-A (GB)
Title: Moulds and a method of manufacture therefor
IPC: B29C33/38
Filed: 1973-11-07
Abstract: 1464386 Forming moulds B & K TOOLING Ltd 3 Feb 1975 [7 Nov 1973] 51616/73 Heading B5A A method of manufacturing a mould comprises adding a resin to a metallic powder at ambient temperature to form a composite material wherein the metallic powder comprises 65-95% by weight of the mixture, applying the whole of the composite material to a mould pattern whose temperature is ambient, compacting the material on the pattern, allowing the material to harden sufficiently at ambient temperature to permit removal of the mould from the pattern and post-curing at a temperature above ambient. The material may be compacted by tamping or vibrating. The resin may be an epoxy or a polyester. The metallic powder may comprise aluminium, iron, gold, silver, copper, steel or mixtures thereof and may have a particle size of 100-300 mesh. More than one layer of the material may be applied to the pattern, each layer having metallic powder of different particle size. Cooling channels may be incorporated between the layers. A gel coat of resin/silica/metallic powder or a spray coating of zinc may be applied initially to the pattern. Part curing may be effected by heating the partially cured mould in stages or continuously up to a maximum temperature of 150‹ C. over a period of six hours. The cured mould may be porous, may have a thermal conductivity similar to that of the metal constituent and may be used for vacuum forming P.V.C. or polystyrene, and dip, injection, rotational, blow or compression moulding. The pattern may be formed of vacuum formed polystyrene and may be reinforced with g.r.p., plaster or a wooden frame.
Patent GB-1350646-A (GB)
Title: Motor driven percussion tools
IPC: B25D9/10
Filed: 1971-11-09
Abstract: 1350646 Percussion tools G A BERGMAN 9 Nov 1971 [9 June 1971] 52024/71 Heading B4C A percussion tool, preferably a rock drill driven by internal combustion means, comprises engine and impact pistons 1, 2 having tapped impact transmitting gas 5 between them and a passage 12 delivering cushioning gas via a non-return valve 11 to a chamber 10 communicating via bores 14, 15 with a chamber 16 within the impact piston. A much larger volume of cushioning gas is thereby assured, part of which may pass via bores 19, 18 during the early part of the impact stroke, to the tool for chip removal &c. The invention is applicable to hammers, chisels &c. (not shown). The gas 5 could be supplied from a source other than combustion gases.
Patent GB-1371394-A (GB)
Title: Methods of drying crop in a drying chamber
IPC: A01D43/00
Filed: 1972-02-28
Abstract: 1371394 Drying of crops C VAN DER LELY NV 28 Feb 1972 [3 March 1971] 52504/73 Divided out of 1371392 Heading F4G The subject-matter of this Specification is identical with that described in Specifications 1,371,391, 1371,392, and 1,371,393, but the claims are concerned with supplying air to the space in the drying chamber above the layer of crop for passage of the air downwards through the crop to dry it.
Patent GB-1403152-A (GB)
Title: Clothes or dish washing machines
IPC: D06F33/32
Filed: 1973-11-19
Abstract: 1403152 Dishwashing machines ELECTROLUX AB 19 Nov 1973 [28 Nov 1972] 53536/73 Heading A4F [Also in Divisions D1 and F2] The duration of a washing or rinsing step in a dish or clothes washing machine having means for supplying liquid to and discharging it from a treatment chamber is determined by controlling the volume rate of supply of liquid to the machine and thereby the time taken for the supplied liquid to rise from a given lower level to a given upper level. In the illustrated machine the closure by a timer 33, Fig. 4 (not shown), of a switch energizes a pump for circulating liquid through a rotary sprayer 25 and also opens an electromagnetic valve 17 to admit liquid to the machine via a pipe 21 and a sprayer 22, and via a pipe 24 containing a flow regulating valve 23. When the liquid has risen to a level A a float 20 closes a valve 19 in the pipe 21, but flow continues through the pipe 24 and reaches a level B after a time determined by the setting of the valve 23. The liquid then overflows through a pipe 37 to displace a piston 36 on a rocker arm 34 and open a drain valve 34 to empty the treatment chamber and thereby terminate a washing or rinsing step. When the chamber has drained the valve 34, which is bowl shaped, is closed by the weight of liquid therein. This drains through a passage 39 to permit a delayed opening of the valve 34. On re-starting a washing cycle a preliminary rinsing by the sprayer 22 takes place with the valve 34 open until it fills with liquid and closes. Strainers 30, Fig. 3 (not shown) and 40 cover the pump inlet and the valve 34. Detergent placed in a pocket 41 on the machine door 13 is shielded from liquid from the sprayer 22 by a baffle 42 but is washed out by the discharge from the sprayer 25.
Patent GB-1480520-A (GB)
Title: Electronic computer with debugging equipment
IPC: G06F9/40
Filed: 1974-12-13
Abstract: 1480520 Computer ING C OLIVETTI & C SpA 13 Dec 1974 [28 Dec 1973] 53991/74 Heading G4A A computer has a switching element operable to define two modes of operation in which normal and debugging programs respectively are executed. The computer is a microprogram-controlled device having a read/write store for program instructions and data and a read-only microprogram store. When the switching element, e.g. a key or switch, is set to "debug" the current programm is interrupted, status data being saved in a reserved area of the read/write store to enable a subsequent return, and the debugging programs, which may be stored in the ROM, are accessed. The first part of the debugging program saves further status data and visually displays the relative address of the current instruction of the interrupted program and the instruction itself, the address being relative to a base stored in a store register and being calculated by subtracting the base from the current absolute instruction address. The program continues by sensing which of several keys on the keyboard have been actuated to select the debugging program to be executed. The debugging programs include programs arranged to display the instruction following that already displayed, to display the instruction stored at an address entered on the keyboard, to cause a normal program subsequently run on the computer to halt at the instruction whose address is entered on the keyboard, to replace the instruction currently being displayed by an instruction entered on the keyboard to allow instructions to be corrected, and to execute the next instruction to allow step-by step execution of a program under test. If debugging programs other than those stored in the ROM are required it is possible to enter a debugging program read from a magnetic card or tape &c. into the read/write memory from where it is executed under microprogram control. Each program so executed is arranged to reactivate the previously interrupted program, to activate a further debugging program, or to actuate a further program read from the magnetic cards. To avoid having to provide more read/write storage than is necessary for normal programs provision is made to enable part of the contents of the read/write store to be transferred to an external store, e.g. a magnetic disc, and to use the space vacated to store a debugging program.
Patent GB-1171377-A (GB)
Title: A Device for Use in Ultrasonic Testing, and Ultrasonic Apparatus
IPC: G01N29/00
Filed: 1967-11-29
Abstract: 1,171,377. Ultrasonic couplings; ultrasonic inspection devices. PANAMETRICS Inc. 29 Nov., 1967 [23 Dec., 1966], No. 54230/67. Headings H4D and H4J. An ultrasonic shear wave source 5 (Fig. 1) is bonded to one end of a rod 3, the other end of which has a bevelled surface 4 inclined to the longitudinal axis of the rod 3 such that at least some of the shear waves emitted from the source 5 and incident upon the surface 4 are converted into longitudinal waves. The length of the rod 3 is substantially equal to three times its diameter and ten of the wavelengths. The source 5 is preferably a piezo-electric crystal. The rod 3 is cylindrical and the longitudinal waves emerge in a direction normal to the axis of the rod. In pulse echo operation the rod 3 receives back the pulses. Preferably an identical rod 6 receives the longitudinal waves after passage through a test medium (fluid, solid or solid in fluid) and converts them into shear waves at bevel 7 for reception by a shear wave receiver 8. Poisson's ratio Á for the material of the rods 3, 6 is 0À25 to provide 100% mode conversion at an included angle (#1+#1) and (# 3 +# 4 ) of 90 degrees. Fixed or variable transmission paths may be used. Transmission measurement using a fixed differential path is obtained by using one transmitting probe 1 and two receiving probes 2. 100% mode conversion, where Á is approximately equal to 0À25, is obtained by using a receiving probe 15 (Fig. 2) with the bevel surface 17 angled so that incoming longitudinal waves are completely mode converted into shear waves. These undergo at least one internal reflection before striking the bevelled surface 18 at which a receiving crystal 20 is bonded. Alternatively, a pair of symmetrical probes (31, 32), Fig. 3 (not shown) may each reflect the shear waves from the probe side wall. Where Poisson's ratio differs essentially from 0À25 but is less than 0À26 identical transmitting and receiving probes 41, 42 (Fig. 4) are used. The included angles between incident and reflected beams are not 90 degrees and the probes 41, 42 are slightly out of parallel. 100% mode conversion occurs but the path length in the test medium between the probes varies across the cross-section of the longitudinal wave beam. This disadvantage may be eliminated by having the probes pointing in opposite directions with the bevel reflecting surfaces (56, 57), Fig. 5 (not shown) parallel. Materials of Á >0À26 may be used and, although not as efficient as mode converters having <0À26, may give greater overall efficiency because they are less sensitive to angular misalignment and because of less acoustic mismatch. Beam spread may be reduced by contouring the bevel. Unwanted reflections are suppressed by roughening the side walls and/or by application of attenuating coatings. Spurious longitudinal pulses at shear wave frequency are filtered by inserting between sections of the probe material (63), Fig. 6 (not shown) a filter (62) of acoustic impedance substantially different from that of the probe material (63).
Patent GB-1194118-A (GB)
Title: Dock Fender
IPC: E02B3/26
Filed: 1968-11-15
Abstract: 1,194,118. Marine fenders. SEIBU GOMU KAGAKU K.K. 15 Nov., 1968 [10 Aug., 1968], No. 54466/68. Heading B7S. A dock fender of elastic material comprising side members supporting a fixing member at one end thereof and a buffer member at the other, has a part bridging the side members at the middle parts thereof. In Fig. 1 two bodies are joined by metal plates 6 so that the side members 4 support the member 9 fixed to the dock and the member 5 provided with fending members 7 and the parts 3 of the bodies form a bridge between the side members. In Fig. 6 the fender has side members 24 supporting buffer 23 and fixing member 25 and bridged by part 29. Other embodiments are shown and described.
Patent GB-548343-A (GB)
Title: Improvements in and relating to door opening and door checking devices
IPC: E05C17/20
Filed: 1941-02-05
Abstract: 548,343. Door-operating appliances. SCHONITZER, R. J. Feb. 5, 1941, No. 1523. Convention date, Feb. 5, 1940. [Class 65 (i)] A device for automatically opening the door 1 of a car &c. after it has been unlatched comprises an arm 6 pivoted at 16 to a bracket 17 fixed to the door and extending into the wall of the car body 4 through openings 11, 12 in the pillar 13, 14. A spring 20 is mounted on the arm between an abutment 31 thereon and a fixed abutment 23, and is compressed during the closing of the door. The arm 6 may carry a rubber &c. buffer 46 to limit the opening of the door. The arrangement may be reversed, the arm extending into the door and the bracket 17 fixed to the body. In another form, the arm 6 has projections, such as are described in Specification 519,701, to engage frictionally spring rollers on the abutment 23 for the purpose of holding the door in partly open or full open position.
Patent GB-1156550-A (GB)
Title: Reinforced Insulation System
IPC: C08L27/06
Filed: 1966-12-09
Abstract: 1,156,550. Thermal insulation; pipe insulation. UNION CARBIDE CORP. 9 Dec., 1966 [13 Dec., 1965], No. 55129/66. Headings F2P and F2X. Insulation system particularly for pipes and tanks, comprising a thermal insulation layer disposed around the surface to be insulated and covered with a layer of fibrous material coated with a layer of mastic material non-porous to water, the layer of fibrous material being a woven or non-woven fabric more than 50% by weight of the fibres of which are made from a polymer of vinyl chloride, and the layer of mastic material having a degree of extensibility at least equal to that of the fabric. The polymers include polyvinylchloride, and co-polymers of vinyl chloride and vinylidene chloride, vinylacetate or acrylonitrile. As mastic there may be used polyvinylacetate as the resin base, rubber films, asphalt, chlorosulphonated polyethylene, sulphonated butadiene, or acrylic rubber. The fabric may be knitted, or non- woven fabric such as lenoweave, warp knit, circular knit, or resin-bonded non-woven scrims or mats. The thermal insulation layer may be calcium silicate, expanded silica, cellular glass, fibre glass blocks, segments or blankets, rigid polyurethane foam or asbestos mats and blocks. The blocks can be held in place by wires or steel bands.
Patent GB-1333435-A (GB)
Title: Resistance element
IPC: G11C11/36
Filed: 1970-11-20
Abstract: 1333435 Junctionless switching element XEROX CORP 20 Nov 1970 [24 Nov 1969] 55303/70 Heading H1K A junctionless memory element comprises (partially reduced) amorphous or polycrystalline metal oxide powder dispersed in an epoxy resin binder, the body thus produced being provided with two electrodes. The elment has an intial high resistance state from which it may be switched to a first lower resistance state by the application of a voltage greater than a threshold value. These two states and the further states to be described are stable even at zero current. The first lower resistance state may be switched to a still lower resistance state by the passage of current exceeding a threshold value; further low resistance states may be reached in a similar way. By exceeding the particular threshold current in the lowest resistance state the device may be made to revert to the high resistance state. The device may also be returned to the high resistance state by incident radiation. Oxides suggested are those of zinc, copper (cupric and cuporous), iron, lead, manganese, aluminium, and mercury. Partial reduction may be achieved by heating the oxides with a small proportion of formate of the same or a different metal or in some cases an initial current pulse through a pure oxide is thought to achieve a degree of reduction. Electrodes may be of copper, brass, steel, aluminium, or may be tinned solder lugs.
Patent GB-1369011-A (GB)
Title: Apparatus for generating a display symbol
IPC: G09G5/20
Filed: 1971-11-30
Abstract: 1369011 Cathode-ray tube displays SPERRY RAND CORP 30 Nov 1971 [7 Dec 1970] 55441/71 Heading H4T Symbols (Alpha-Numeric characters) are produced on the screen of a display cathode-ray tube 16, Fig. 11, by intensity modulation of the beam under the control of pulses derived from a detector 15 on amplitude coincidence of two input signals derived respectively by modification of the horizontal and vertical scan sawtooth outputs V(x), Fig. 2 and V(y), Fig. 3, of generators 1 and 4 which deflect the beam in line raster fashion. The modification consists of combining the horizontal and vertical deflection signals with respective adjustable OFF SET voltages from generators 2 and 3 in respective subtractors 6, 7 the outputs (Figs. 4 and 6) which are integrated in integrators 8 and 9 (reset by horizontal and vertical synch. signals) producing the waveforms shown in Figs. 5 and 7 which are then normalized in respective networks 10, 11. The output from network 10 then provides one input Vx (Fig. 8) to the voltage equality detector 15 the second input to which Vy (Fig. 8) is derived from a subtractor 13 supplied with the output of network 11 via an eccentricity circuit (an adjustable gain amplifier) 12 and with the output of an adjustable size control circuit 14 providing a unidirectional voltage. Detector 15 then supplies output bright-up pulses to the control grid 16C when the two inputs coincide which, as shown in Fig. 8, occurs during horizontal scan numbers 2 to 9 a single coincidence occurring during scans 2 and 9 whilst two coincidences occur during each of the scan members 3 to 8 the separation between each coincidence varying as shown so that the resulting symbol produced comprises an ellipse as shown in Fig. 9. The Specification includes a mathematical analysis of the operation of the arrangement and shows that in addition to ellipses, circles and straight lines may be produced by suitable adjustment of size control 14 with the omission of the eccentricity circuit 12 and hyperbolic traces produced by substituting an adder for subtractor 13. Also, by modifying Fig. 1, as shown in Fig. 10, by omitting the integrator 9 and substituting an amplifier 20 having a gain of four times, for the elements 12, 13 and 14, parabolae may be produced.  The invention is stated to be particularly suited to the display of identification or proximity warning symbols in navigation or collision warning displays of radar data using the same deflection voltages employed to produce the radar display. Instead of manually adjusting the OFF SET voltages provided by generators 2 and 3 (which determine the position of the displayed symbols) and the size control voltage provided by size control 14, suitable voltages may be derived from the navigation system with which the display is associated.
Patent GB-1300284-A (GB)
Title: Vehicle steering columns
Inventor: HUGHES SIDNEY ARTHUR
IPC: B62D1/19
Filed: 1970-11-25
Abstract: 1300284 Steering columns ACCLES & POLLOCK Ltd 25 Nov 1971 [25 Nov 1970] 55974/70 Heading B7H A collapsible vehicle steering column comprises a shaft 1 attached to a deformable member 4 and surrounded by a jacket 3 to which is rigidly attached a mounting bracket 6. The bracket 6 is fastened to the dashboard 5 by screws 10 which pass through plastics e.g. nylon blocks, 11 which are each a close sliding fit in slots 13 of the bracket 6, and through nuts 14 welded to the rear of dashboard 5. Screws 10 are tightened to provide the desired frictional grip so that the steering column assembly breaks free from the dashboard only under predetermined impact conditions.
Patent GB-568970-A (GB)
Abstract: 568,970. Gas torches. WILSON, P. Nov. 17, 1943, No. 19186. [Class 75 (iii)] The igniting flint of an acetylene or other gas torch is arranged in a chamber only open to the gas passage when ignition is to be effected. In the torch shown the operation of a trigger 18 in a pocket 16 in a pistol body 1 opens a spring-pressed valve 10 to allow gas to pass through a needle valve 7 from a supply passage 4 to a venturi tube 22 having a sliding sleeve 30 projecting into a flame tube 28 secured to the barrel end of the body 1. The tube 22 has air openings 23 communicating with the trigger pocket 16. The sleeve 30 has a reduced end 31 threaded to form a file surface to engage a spring-pressed fiint 41 projecting into a chamber 32 between the end 31 and tube 28. The trigger 18 carries a pivoted pawl 50 which during the initial movement of the trigger engages a pivoted rocker 44 in contact with a flange 36 on the sleeve'30. The chamber 32 is thereby opened to the gas flow until the engagement of the pawl 50 with a cam 54 on the pocket 16 release the rocker 44 and the sleeve moves forwardly, sparks being produced at the flint 41 to ignite the gas in the chamber 32 and at the flame tube nozzle 29 before closing the chamber 32.
Patent GB-1377637-A (GB)
Title: Process for the production of methacrylonitrile and catalyst  therefor
IPC: B01J27/186
Filed: 1971-12-10
Abstract: 1377637 Olefin ammoxidation catalysts NITTO CHEMICAL INDUSTRY CO Ltd 10 Dec 1971 [11 Dec 1970 16 Feb 1971] 57569/71 Heading B1E [Also in Division C2] A catalyst for use in the preparation of methacrylonitrile by the ammoxidation of isobutene comprises (a) a composition having the empirical formula  Fe 10 Sb 5-60 Me z Te 0.05-5 X 0-5  O 20-225  wherein Me is selected from vanadium, molydenum and tungsten, X is selected from boron and phosphorus and z is greater than 1 but not greater than 10 and, optionally, (b) carrier material selected from silica, alumina, silicaalumina, zirconia, silicon carbide and inorganic silicates in an amount which may constitute from 10 to 90 weight per cent of the catalyst. The catalyst also may contain an additive, for example binding agent or filler. Details are given in the Specification of the preparation, by generally conventional methods, of (i) silicasupported catalysts containing either vanadium or molybdenum or tungsten but containing neither boron nor phosphorus, (ii) more complex catalysts having the following empirical formulae: Fe 10 Sb 10 Mo 2 TePO 45À5 .60 SiO 2 ; Fe 10 Sb 5 Mo 1À5 Te 2 BO 35 .60 SiO 2 ; Fe 10 Sb 25 V 2 WTe 2 O 77 .60 SiO 2 ; Fe 10 Sb 10 V 1À5 TePO 43 .60 SiO 2 ; and Fe 10 Sb 5 V 2 Te 2 BO 37 .60 SiO 2 , and (iii) comparison catalysts having the following empirical formulae: Fe 10 Sb 15 O 45 .60 SiO 2 ; Fe 10 Sb 25 Te 2 O 69 .60 SiO 2 ; Fe 10 Sb 10 Mo 2o Te 2 O 99 .60 SiO 2 ; Fe 10 Sb 10 Mo 5 O 5o .60 SiO 2 ; Fe 10 Sb 10 V 2o Te 2 O 89 .60 SiO 2 ; Fe 10 Sb 10 W 15 O 5o .60 SiO 2 ; and Fe 10 Sb 2o W 0À5 Te 2 O 61 .60 SiO 2 . The catalyst may be in the form of pellets, for example cylinders 2 mm by 2 mm in size, for use in fixed bed reactors or of powder, for example having a particle size of 10-100 microns, for use in fluidised bed reactors. Reference is made to Specifications 1,257,489 and 1,283,369.
Patent GB-1287789-A (GB)
Title: Crystal pulling device
IPC: C30B15/22
Filed: 1969-11-28
Abstract: 1287789 Crystal-pulling. KOKUSAI DENKI KK 28 Nov 1969 [6 Dec 1968] 48212/69 Heading BIS [Also in Division G3] A silicon rod 20 is pulled from a melt contained in a rotating quartz crucible 3b and heated by a cylindrical resistance heater 4 supplied with an amount of power dependent on a signal from a temperature-sensing thermocouple 5 maintained substantially at the level of the solid/liquid interface, so as to maintain substantially constant the temperature of said interface. The heater and thermocouple may be moved down at a constant (e.g. 0.1 mm/min) or variable rate determined by calculation or practical test. Pulling may be effected in an atmosphere of argon.