baber/WOPTO huggingface dataset:
Patent GB-1092397-A (GB)
Title: Single crystalline silicon on insulating subtrates
IPC: H01L27/00
Filed: 1965-10-01
Abstract: A film of single crystal silicon is chemically bonded to an a -aluminium oxide substrate.  The surface of the oxide to which the film is bonded extends in a plane within 11 DEG  of parallelism of the (00.1) plane of the oxide whilst the film's crystal lattice has its (111) plane with 1 DEG  of parallelism of the said (00.1) plane. The substrate is preferably a single crystal and of ruby, sapphire or a -corundum.  The substrate is cleaned before deposition of Si but it may contain Cr as a dopant. Silicon is deposited on the substrate by evaporation or by thermal decomposition of H2 + SiCl4.  The deposited Si film may be divided into circuit components by chemical or mechanical etching and the individual areas impregnated with donor or acceptor impurities to give transistors, diodes, lasers, resistors or rectifiers.  SiBr4 or SiI4 may also be used as a silicon source.
Patent GB-1090957-A (GB)
Title: Shipping container
IPC: B65D3/00
Filed: 1966-09-20
Abstract: 1,090,957. Container closures; stackable containers. METAL CONTAINERS Ltd. Sept. 20, 1966 [Oct. 16, 1965], No. 41846/66. Headings B8D and B8T. A container closure comprises a membrane 24 extending over the open end of a container having a grooved edge reinforced by a metal ring 22, a clamping ring 25 securing the membrane in position As shown, a sealing gasket 26 is provided inside the open container end, and a reinforcing disc 28 is attached to the membrane 28. A disc 27 may be provided on top of the membrane 24, to facilitate stacking of one container upon another. In one modification, Fig. 1 (not shown), the reinforcing disc 28 on the inner side of the membrane 24 is omitted. In another modification, an additional disc (39), Fig. 3 (not shown), of larger diameter, is provided between the reinforcing disc (38) and the membrane (34), its outer edge engaging the top surface of the metal ring (32). The membrane 24 is of fabric made from artificial or natural fibres and is coated on one side with a liquid-proof layer.
Patent GB-895625-A (GB)
Title: New benzene-sulphonyl benzyl-ureas and process of preparing them
Filed: 1958-12-29
Abstract: The invention comprises sulphonyl ureas of the formula <FORM:0895625/IV (b)/1> and salts thereof with pharmaceutically tolerable bases, wherein R is hydrogen or an alkyl or alkoxy radical containing up to 6 carbon atoms, A is hydrogen, methyl or ethyl and B is hydrogen or an alkyl or alkoxy radical of up to 3 carbon atoms, and their preparation by known methods for preparing sulphonyl ureas, viz.: reacting a benzene sulphonamide with an aralkyl isocyanate or a benzenesulphonyl isocyanate with an aralkylamine; reacting a benzene sulphonamide with an aralkyl urethane or a benzenesulphonyl urethane with an aralkylamine; reacting a benzene sulphonamide, suitably in the form of its salt, with an aralkyl carbamoyl halide, or a benzenesulphonyl carbamoyl halide with an aralkylamine; reacting a benzenesulphonamide with a compound containing the aralkyl urea residue B-C6H4.CHA.NH.CO.NH-; forming the corresponding isourea ether and hydrolysing; eliminating sulphur from the corresponding thiourea; hydrolysing the corresponding sulphonyl guanidine, and oxidising a corresponding sulphonyl or sulphinyl urea.  N - p - Methylbenzenesulphonyl - N1 - benzyl - thiourea is made by the action of sodium p-toluenesulphonamide on benzyl mustard oil.  N - p - isopropylbenzenesulphonyl - N1 - benzyl isourea methyl ether is made by treating benzyl urea with dimethyl sulphate and reacting the product with isopropylbenzene sulphochloride.  Pharmaceutical preparations for the treatment of diabetes comprise the above sulphonyl ureas in admixture or conjunction with a pharmaceutical carrier, preferably in a form suitable for oral administration, such as a tablet, optionally containing such conventional excipients as talcum, starch, lactose, tragacanth or magnesium stearate. Specifications 604,259 and 808,071 are referred to.
Patent GB-981581-A (GB)
Title: Mortar mix for the preparation of lime containing concrete
IPC: C04B28/10
Filed: 1962-11-06
Abstract: The binders of the parent Specification are replaced by a mix containing hydraulic type binders and burnt lime.
Patent GB-1045560-A (GB)
Title: Improvements in laminated magnetic cores
Inventor: JUMP LESLIE
IPC: H01F27/245
Filed: 1964-10-15
Abstract: 1,045,560. Transformers and inductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 24, 1965 [Oct. 15, 1964], No. 42117/64. Heading H1T. One or more pockets of adjacent laminations of a core of a transformer, saturable reactor &c., are separated by a plastics spacer, Fig. 3a (or Fig. 4 or Fig. 2a, not shown), provided with openings 11, 21, or 6, extending therethrough, said openings being interconnected by ducts for the flow of cooling fluid, e.g. oil or air. In Fig. 3a, the spacer comprises a plate integrally moulded or formed from two or more sections dovetailed together by means of projections 14 and slots 13, raised portions 12 surrounding the openings 11 on one or both sides of the plate, the ducts being defined by the parts of the plate between the portions 12 and the adjacent core lamination(s). In another arrangement (Fig. 4) the spacer comprises moulded strips 16, each strip having apertured bosses 17 (not shown) separated by pegs 19, interlocking with the apertures in the bosses on perpendicular strips. Ducts 22 connect openings 21. In a further form (Fig. 2a, not shown) the spacer comprises overlapping strips forming a lattice, the ducts being defined by the non- overlapping portions of the strips. Core bolts may pass through the spacer openings.
Patent GB-897562-A (GB)
Title: Sheet gripping device and method of making same
IPC: B41F21/10
Filed: 1959-12-11
Abstract: 897,562. Grippers. HARRIS-INTERTYPE CORPORATION. Dec. 11, 1959 [Dec. 19, 1958], No. 42168/59. Class 100(2) In a sheet gripping device having a pair of relatively movable and co-operating gripping elements one of the elements has a hardened gripping surface comprising a multiplicity of peaks distributed throughout the surface and valleys surrounding the peaks, the peaks being produced by etching of selected areas of the surface and having tops arranged in substantially the same plane. The impression cylinder 10 of a rotary printing press carries a gripper shaft 11 on which is rotatably mounted a gripper finger 12 which co-operates with a gripper post 13. A dog 16 is secured to the shaft 11 and a spring 18 arranged between abutments on the dog and on the finger urges the latter in a clockwise direction (as shown) about the shaft 11, such rotation being checked by further, co-operating abutments 20, 21 on the finger and dog respectively. The shaft 11 oscillates to open and close the gripper; when the gripper is closed it bears resiliently on a sheet S being gripped owing to the spring 18. The post 13 is etched on its upper surface to provide a multiplicity of minute peaks each of which has a plane top and ragged sides. The etching is 0À010 inches deep and the tops are approximately 0À005 inches wide. The post is prepared for etching by use of a light-sensitive resist. The tops of the peaks may be ground after etching in order to ensure that they lie accurately in the same plane. The gripping surface may be formed on a thin plate which is then secured to the post.
Patent GB-1162034-A (GB)
Title: Folding Measuring Instrument Incorporating Improved Linkage Members
IPC: G01B3/06
Filed: 1967-09-15
Abstract: 1,162,034. Measuring rules. QUENOT & CIE s.a.r.l. Sept. 15, 1967 [April 28, 1967] No. 42203/67. Heading G1M. A folding measuring rule consists of a number of graduated sections 1 pivoted together at their ends. At the end of one section, a member 2 having a pivot hole 3, bosses 6, 7 and openings 8, 9 is secured whilst at the end of an adjacent section a complementary shaped member is secured. The bosses on the member 2 engage openings in the complementary shaped member and vice-versa so that the rule is maintained in a folded or extended position. Modifications are described of the number and arrangement of the bosses and openings.
Patent GB-1477154-A (GB)
Title: Seismic exploration system
IPC: G01V1/157
Filed: 1974-10-01
Abstract: 1477154 Seismic exploration SOC NATIONALE DES PETROLES D'AQUITAINE 1 Oct 1974 [15 Oct 1973] 42560/74 Heading G1G A seismic exploration system comprises a mass vibrated at a frequency of between 0À5 Hz and 100 Hz to generate mechanical waves by impact, means for varying the vibration frequency during the wave generation, and a sensor located near the mass to give a signal indicating at least the instants of impact. The Fig. 1 seismic source comprises a mass 19, which impacts the ground or a plate on the ground. The mass is coupled via cylinder 14, spring 15, guide piston 16, bearing 18, connecting rod 10 and a crank to a rotary internal combustion engine 2 whose speed is controllable by throttle 6. An accelerometer 20, on mass 19 or the plate or the ground, gives an output signal representing the impact instants and amplitudes. This signal is fed over a wire 22 or radio link to a computing and recording system which also receives geophone signals. The accelerometer signal may be monitored on a CRO and cross-correlated in known manner with the geophone signals. Field procedures are described, Figs. 3 and 4, (not shown), in which a seismic profile line is traversed by (a) a single source and trailing receiver with a varied or constant offset, the traverse being made first in one direction and then in the opposite direction, or (b) two sources used with a leading receiver and trailing receiver respectively.
Patent GB-1013039-A (GB)
Title: Pipe covering and method of making same
IPC: F16L59/14
Filed: 1964-10-22
Abstract: A high-bulk fibrous felt is made of 50 to 90% asbestos and 10 to 50% glass impregnated with 30 to 70% by weight of a B-stage thermosetting resin having a minimum polymerization temperature of 66 DEG C., the felt being used with a compatible thermosetting resin, and the resins being curable at a temperature between 135 DEG C. and 204 DEG C.  To make the felt glass fibre is processed through a hammer mill, mixed with asbestos in a beater with water between 32 DEG C. and 49 DEG C. and, after adding 1-10% of a corn gum binder, is felted in an apparatus which is controlled to a speed of about 600 ft/min. Parallel fibres of glass or nylon may be included lengthwise in the felt for strengthening.  Variations in felt manufacture include first mixing part of the asbestos with all the glass and adding the remainder of the asbestos with the binder; also the glass may be brushed or mixed before adding the asbestos or binder or the mixed batch may be brushed before felting.  The felt is between 0.3 and 0.6 inches thick and is made up into 300 to 400 lb rolls which may be cut into strips for pipework.  The felt is impregnated with either an anhydride-curable epoxy resin, or an unsaturated polyester resin or a phenol aldehyde resin or a mixture of these.  The resin may or may not be cured at this stage.  For application to a pipe or other article the felt is dipped in, or rolled with a compatible liquid resin and wound on to or applied to the article which has also been processed with the liquid resin.  Heat is then applied to cure the resins.
Patent GB-1439075-A (GB)
Title: Fuel proportioning units for internal combsustion engines
IPC: F02M7/127
Filed: 1973-09-14
Abstract: 1439075 Automatic control of air/fuel ratio ROBERT BOSCH GmbH 14 Sept 1973 [15 Sept 1972] 43211/73 Heading G3R [Also in Division F1] A fuel proportioning unit for an internal combustion engine comprises a fuel chamber 5 from which fuel is drawn through a passage 14, terminating in a nozzle 13 which co-operates with a metering needle 12, to mix with air flowing through an induction pipe 1, the proportion of fuel to air being also dependent on the pressure in the fuel chamber 5, this pressure being varied in dependence on the output signal from an oxygen measuring probe 19 which projects into the exhaust pipe 18, the output signal being used to control two valves 16 and 17 which control communication between the fuel chamber and points upstream and downstream respectively of the choke region created by a piston 8 in which the needle 12 is mounted. An air storage chamber 28 is connected to the fuel chamber 5 to increase its volume in order to smooth out pulsations occurring in the inlet pipe 1. Probe 19 is a solid electrolyte tube, coated on its inner and outer surfaces with platinum electrodes and connected through Schmidt triggers 20 and 21 and amplifiers 23 and 24 to the valves 16 and 17, so that the valve 16 is only open when the probe output is below a predetermined voltage and the valve 17 is only open when the output is above a second, higher, predetermined voltage. When valve 16 is open the pressure in the fuel chamber increases and additional fuel is provided to restore the fuel/air ratio of the mixture supplied to the engine to a stoichiometric value, and when the valve 17 is open, the depression on the downstream side of the choke lowers the fuel chamber pressure to reduce the amount of fuel drawn off. Restrictors 25 in the pipes 6 and 7 and in a connecting pipe 26 reduce the pressures existing at the valves.
Patent GB-1406293-A (GB)
Title: Lasers
IPC: H01S3/139
Filed: 1972-09-19
Abstract: 1406293 Lasers SIEMENS AG 19 Sept 1972 [27 Sept 1971] 43304/72 Heading H1C An absorption cell 5, Fig. 3, is placed in the resonator of a laser and subjected to a varying magnetic field to intensity modulate the laser output, the phase of the modulation being detected and used to control a piezo-electric resonator mirror mount 4 and thus to stabilize the laser frequency. The absorption cell contains a laser active gas, in the present case neon, but does not lase. The axial magnetic field applied to it by coil 13 causes inverse Zeeman splitting, so that each absorption line splits into two circularly polarized lines whose separation varies with the applied field. The output from laser tube 1, which contains a He-Ne mixture, is circularly polarized by a #/4 plate 6g. Suppose that a right circular polarization (RZP) is produced; this will be partially absorbed within cell 5, and the final output beam will be as shown at a in Fig. 2 for one extreme value of the applied field, and as shown dotted at b for the other extreme value. The sharp peak in the output is due to the absorption saturating, i.e. to the inverse Lamb dip effect. The intensity modulation caused to a laser beam near the central portions of Fig. 2 has a phase which depends on the frequency of the beam, the net phase being zero at the centre of the absorption, γ 0 . The modulation is measured by photodetector 7 in Fig. 3, and compared in phase with the magnetic field source 12 at comparator 9, any resulting error signal being used to adjust mirror mount 4 to vary the resonator length. The laser frequency is thus stabilized on the absorption line, and because a dither system is not used a high degree of coherency is obtained in conjunction with a stable output.
Patent GB-893899-A (GB)
Title: 3-(3-indolyl)pyrrolidines)
IPC: C07D403/04
Filed: 1960-09-02
Abstract: The invention comprises compounds of the formula <FORM:0893899/IV (b)/1> (wherein R is hydrogen, alkyl, dialkylaminoalkyl), (N-morpholino)alkyl or (2-pyridyl)-alkyl, each alkyl group containing at most 5 carbon atoms) and acid-addition salts thereof; and their preparation by reducing the carbonyl groups of a diketone of the formula <FORM:0893899/IV (b)/2> This process may, in turn, be combined with the preparation of the diketones by the methods described in Specification 893,898.  A preferred reducing agent for the first named process is lithium aluminium hydride.  Examples are given and a list of salt-forming inorganic and organic acids is provided.
Patent GB-1240356-A (GB)
Title: Rotary wing aircraft with foldable rotor blades
IPC: B64C27/50
Filed: 1968-09-12
Abstract: 1,240,356. Folding helicopter blades. UNITED AIRCRAFT CORP. 12 Sept., 1968 [3 Oct., 1967], No. 43352/68. Heading B7W. A rotary wing aircraft has a foldable rotor blade provided with a mechanism which locks the blade in pitch during folding movement and which comprises splines 42 on a spine ring 40 secured to a blade root sleeve 26, splines 44 on the external surface of rotor head attached spindle 22 and an axially slidable spline assembly 46, 48. Assembly sleeve 48 carries external splines 50 and internal splines 52 engageable with splines 44 at any position of the assembly. An activating means comprises a pair of diammetrically opposed cams 66 positioned in an annular groove formed in the spline assembly 46, 48, each cam being carried by a secondary pitch lock arm 68 formed on a sleeve journalled on a shaft 72 rigidly carried by an arm 74 supported by the blade sleeve 26. An arm 82 integral with arm 68 carries at its free end, bifurcations 84 pivotable between which is a compression spring box 88 which acts between arm 82 and an arm 104 pivoted at its inboard end on a bolt 106 carried by blade sleeve 26 and carries at its other end slotted bifurcations 110 pivotable between which is piston rod 118 of a fluid operated jack which rod terminates in an extension 124 carrying a pin which is withdrawn for blade folding. A micro-switch 130 actuable by an arm 132 pivotally engaged with sleeve 70 indicates the assembly position. In order to lock the blade sleeve 26 to the blade spindle 22, the jack is operated to withdraw said pin and to cause spring 92 to urge cams 66 to slide the assembly inboard so that splines 50 and 42 may intermesh.
Patent GB-1403737-A (GB)
Title: Finned tubes
IPC: F28F1/36
Filed: 1972-09-19
Abstract: 1403737 Making heat exchanger tubing RAYPAK PRODUKTEN NV 19 Sept 1972 [21 Sept 1971] 43414/72 Heading B3A [Also in Division F4] A finned tube 8, Fig. 6, such as for a heat exchanger, is formed by extruding fins 9 in a single operation as a continuous coil from the wall of the tube, the fins including an angle (α), Fig. 2 (not shown), of less than 90 degrees with the surface of the tube, and bending diametrically opposite fin segments 11, 12 in a direction which is at least substantially parallel to the axis of the tube. The bent segments are formed by compressing the tube between two substantially plane, parallel die portions of a press and may be of any desired shpe, e.g. curved, angular. Tubes 4<SP>1</SP>-7<SP>1</SP> may be utilized in-a heat exchanger by arranging them with flattened segments 11, 12 pointing alternately in opposite directions, Fig. 4 (not shown). Guide plates 10 are provided above the tubes to force flue gases along the arrowed paths around the tubes which may be made of copper.
Patent GB-984228-A (GB)
Title: Improvements in or relating to methods and apparatus for continuous casting of metal
IPC: B22D11/06
Filed: 1961-12-05
Abstract: 984,228. Continuous casting - machines. HAZELETT STRIP-CASTING CORPORATION. Dec. 5, 1961 [Dec. 8, 1960], No. 43461/61. Addition to 912,742. Heading B3F. In a belt-type continuous casting machine as described in the parent Specification which is referred to, the grooved support rolls at the input end of the belts are substantially directly opposed to each other so that their axes lie in a plane which is substantially perpendicular to or at an angle in excess of 45 degrees to the plane of casting zone, and both belts at the input end are supported and guided by additional rolls spaced away from the grooved rolls and aligned with the axes of said grooved rolls in a plane perpendicular to or at an angle in excess of 45 degrees to the plane of the casting zone, and the flight of both belts approaching the input end of the casting zone follow paths each of which is substantially perpendicular to or at an angle in excess of 45 degrees to the length of the casting zone. Metal is directed from a tundish 5 into the casting gap by a nozzle 25 having a number of longitudinal passages 26. The flexible, sheet-metal belts 14, 16 are guided by rollers 28, 32, 36 and 30, 34, 38 respectively, and backed up over the casting length by ridged rolls 44. The nip rollers 28, 30 have deep, closely spaced circumferential grooves 31 into which curved nozzles 84 project to supply coolant to the reverse sides of the belts, other coolant being supplied along the length of the casting gap by nozzles 61, scoops 60 picking up excess coolant and directing it to gutters 63 for return to the coolant supply tank 50. The rollers 32, 34 are the driving and steering rollers, being driven through shafts 42, 43 with universal couplings, and being also skewable by means of cylinders 96 to compensate for any tendency of the belt to move laterally, such tendency being sensed by probes 95, Fig. 3. The belt tensioning rollers 36, 38 are each faced with a layer of rubber 39 and are moved to tension the belt by cylinders 216 acting through links 222 &c., Fig. 1. The upper belt assembly is pivotally supported on the ends of cantilever arms 150, 152, Figs. 3 and 4, mounted at their other ends on a pivot 114, so that it may be swung upwardly by means of a cylinder 154 to open up the gap between the belts. The assembly is also movable longitudinally as shown in Fig. 14c by means of a screw member operated by a handwheel. The edges of the gap are sealed by moving dams 68, 70 comprising steel blocks strung on continuous flexible metal straps. Spacer blocks 178, Fig. 1, support the weight of the upper belt assembly. The whole assembly is mounted on a pivot 100, Fig. 3, so that it may be tilted with respect to the horizontal, being located in any desired position by bolts 119 in holes 120. Reference has been directed by the Comptroller to Specifications 837,473, 837,474 and 837,475.