baber/WOPTO huggingface dataset:
Patent GB-889105-A (GB)
Title: Improvements in or relating to combustion gas generating device
Inventor: CAMPBELL PHILLIP B
IPC: F02C7/272
Filed: 1960-10-04
Abstract: 889,105. Generating combustion products under pressure. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 4, 1960, No. 34008/60. Class 51 (1). [Also in Group XXVI] A gas generating device comprises a pressure-tight housing, a primary combustible charge disposed within the housing, means for igniting the primary charge, primary and secondary gas passageways extending from the housing and communicating with the charge, and a secondary combustible charge disposed so as to initially block the flow of gaseous combustion products through the secondary passageway but being consumable within a predetermined length of time after ignition of the primary charge so as to unblock the secondary passageway thereby allowing combustion products to flow therethrough. The invention is shown applied as a gas turbine engine starter and comprises a housing 27 mounted on the engine casing 13, the housing having an end closure 29 at one end and a discharge nozzle assembly 28 at the other. The assembly 28 comprises three nozzles 30 which extend inwardly through the engine casing 13 and discharge on to the turbine rotor blades 31. A tubular member 43 also extends through the housing 27 and communicates by means of a duct 45 with the interior of the engine combustion equipment 23 adjacent the fuel discharge nozzle 24. A primary combustible charge 34 is disposed within the housing 27 and has an internal passage 33 of star shape so as to afford a large burning area. An igniter is provided for the primary charge and comprises a readily ignitable charge 38 disposed within a tubular casing 37 which projects through the end closure 29 into the passage 33 within the primary charge. The casing 37 is perforated at 42. The charge 38 is ignited by means of an incandescent wire 39 and the combustion gases discharge through the perforations 42 into the space 33 within the primary charge 34 which therefore starts to burn, the combustion gases formed discharging through the nozzles 28 and driving the turbine rotor. The tubular member 43 contains a secondary combustible charge 49 which is ignited simultaneously with the primary charge. When the charge 49 is consumed, combustion gases also discharge through the duct 45 into the engine combustion equipment so causing ignition of the fuel and air mixture therein.
Patent GB-1521585-A (GB)
Title: Spectrophotometers
IPC: G01J3/08
Filed: 1976-08-16
Abstract: 1521585 Spectrophotometers PERKIN ELMER CORP 16 Aug 1976 [9 Sept 1975] 34050/76 Heading G2J In a spectrophotometer, sample and reference beams are directed along a common axis to the photo-detector 96 by a beam combining member 30 having a reflective surface formed by a plurality of substantially parallel V-shaped grooves. The angle # between the side walls of each groove is chosen to be between 90 and 120 degrees and to be less than twice the angle between the main axis of the sample (or reference) beam and the axis perpendicular to the plane of the member 30, so as to avoid flare, particularly when the beams are converging or diverging. Suggested suitable values for these angles are 117 and 63 degrees, respectively. Fig. 5 shows the mirror arrangement for directing beams along sample and reference paths, including plane mirrors 80, 82, toroidal mirrors 84, 86 for converging the beams onto sample and reference locations 88, 90. Extra mirror 92 renders the reference beam equivalent to the sample beam. Image aberration caused by the use of spherical mirrors 52 to focus the beams on the detector is corrected by the use of the beam combining element described, Fig. 4 (not shown). The grooved member may be non-planar if optical power is required. Individual groove surfaces may also be non-planar. The member may be of glass or metal. It may be fabricated by ruling grooves onto a solid aluminium blank, using a ruling engine, having a diamond of the required shape and angle #, the groove spacing being such as to minimize diffraction but being small enough to avoid alignment difficulties e.g. 1mm for a beam diameter of 10mm. Aluminium evaporation-coated replica members may be made from a master.
Patent GB-203599-A (GB)
Title: Process for the manufacture of acetose, that is, acetylated cellulose and products derived therefrom, such as artificial silk, horsehair, films and the like
IPC: C08B3/06
Filed: 1922-04-05
Abstract: Acetylation solutions suitable directly for spinning and for the manufacture of films, are prepared by treating cellulose with an acetylating mixture in the presence of a weak condensing agent in its ordinary, as distinct from its nascent condition, followed by a further acetylation in the presence of sulphuric acid or other strong condensing agent, the proportion of the latter as compared with the cellulose in no case exceeding 4 per cent and being preferably of about 0.7-0.8 per cent.  Suitable weak condensing agents are chloracetic acids, acetyl sulphuric acid, alkylamines, aniline salts, methyl sulphonic acid, phosphorus trichloride, pyridine, alkyl sulphates, dimethylamine sulphate, and hydrochloric acid.  Artificial silk and like filaments are prepared by squirting the solution into a coagulating bath, and films by applying a coating to a band partly submerged in coagulating liquid.  The acetylation process is a development of those of Specifications 139,232 and 190,732.
Patent GB-804213-A (GB)
Title: Improvements in or relating to the measurement of the instantaneous flow of a liquidcirculating through a pipe system
IPC: G01F1/20
Filed: 1955-11-29
Abstract: 804,213. Measuring liquid flow. JALBERT, J. H. Nov. 29, 1955 [Nov. 29, 1954], No. 34217/55. Class 69(1). Apparatus for obtaining the volumetric or mass flow of a liquid of unktnwon density comprises, as shown in Fig. 1, a deformable double bellows 1 with parts separated by a nozzle 6 in a tube 5 carrying a datum 8, the datum being displaced upwardly when the apparatus is filled with the liquid by an amount dependent on its density, and being further displaced when upward flow of the liquid takes place. The volumetric flow is obtained by division, and the mass flow by multiplication, of these displacements; Fig. 6 shows a device enabling these calculations to be effected. In this Figure, datum 8, which can slide freely in a slot 11 in a toothed sector 10 pivoted at 9 and engaging a pointer-carrying pinion 12, is shown in the position it takes up with the bellows empty. Filling of the bellows with the liquid at rest causes upward movement of the datum, and this will cause rotation of the pointer 14 from the position O1 shown. By relative horizontal movement between datum 8 and the rest of the mechanism shown in Fig. 6, the pointer is made to coincide with the " zero " of the dial 15 ; in this way any subsequent movement of the pointer will indicate the volume flow. For obtaining mass flow with the device of Fig. 6, the bellows is filled with the liquid at rest, and the graduation on the dial indicated by pointer 14 noted. The pointer is now made to correspond to zero on the dial by relative vertical movement of the datum 8, and then returned to its previously noted position by relative horizontal movement. Finally the pointer is returned to zero by relative vertical movement; any subsequent movement of the pointer indicates mass flow. The apparatus shown in Fig. 1 may be modified by inclusion of a solid or hollow body in the upper bellows to increase the deflection on filling with liquid at rest; a further modification is described and illustrated in which the exterior of the bellows are subjected to the liquid.
Patent GB-411166-A (GB)
Title: An improved process for making lead plated zinc bands
IPC: B32B15/01
Filed: 1933-12-05
Abstract: Crude zinc is softened by heating for 12 hours to above 300 DEG  C Specification 398,318, [Group XXII], is referred to.
Patent GB-514136-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M50/172
Filed: 1938-11-24
Abstract: 514,136. Batteries. RULAG BATTERY CO., Ltd., Nov. 24, 1938, Nos. 34255 and 34256. Convention dates, Dec. 14, 1937, and Feb. 22, 1938. [Class 53] A sleeve surrounding a lead or leads to the electrodes of a cell, in a liquid tight manner, extends from the exterior of the casing to the interior thereof for a distance greater than that from the adjacent edge of the electrode to the wall through which the leads pass, and has caulking material inserted into it. Sleeves 3, 4, Fig. 1, are attached to the celluloid end wall 2 of a container 1 and lead leads 6, 7 are passed therethrough and sealed in position by caulking material 8 inserted, under pressure, through side apertures 5. Two leads may pass through a single sleeve, Fig. 2 (not shown). In further modifications the sleeves may be formed integral with the walls of the casing, Fig. 3 (not shown), and the leads may have transverse scorings in their surfaces further to prevent the creepage of electrolyte between them and the caulking material, Fig. 4 (not shown). Specification 407,723 is referred to.
Patent GB-208636-A (GB)
Title: Improvements in or relating to tyre-levers
IPC: B60C25/14
Filed: 1922-12-15
Abstract: 208,636. Crawley, E. T. Dec. 15, 1922. Tyres, elastic, and tyrecovers, tools for removing and replacing. - A tyrelever comprises a U-shaped bracket c formed with hooks d, e, a lever f being pivoted at one extremity of the bracket and a bolt g holding the bracket securely on the rim a. As much of the tyre as possible is sprung into the rim; three brackets are then mounted with hooks d engaging the rim and the levers f of the outer brackets are raised, causing the free edge of the tyre to slide towards the rim. On raising the centre lever, the tyre slips on to the rim. The other end of the lever is used for removing the tyre from the rim. A notch s in a wing of the clamping-nut h of the bracket c hooks round a spoke to prevent reverse movement of the level' while the tyre is being disengaged. In a modification, the lever f may be detachable from the clamp, the end of the lever being formed with an open hook to engage the hinge pin m.
Patent GB-651775-A (GB)
Title: Improvements in or relating to a method of forming integral finned tube
IPC: B21C37/20
Filed: 1946-11-19
Abstract: 651,775. Tubular heat-exchange elements. CALUMET & HECLA CONSOLIDATED COPPER CO. November 19, 1946, No. 34284. [Class 64(iii)] [Also in Group XXII] In condenser, refrigerator &c. tubes, a helical fin is formed integrally with the tube 1 by radially extruding the wall. The overall fin diameter is equal to or less than the unfinned end diameter. The finned portion tapers to a reduced parallel tube in the central region. In a modification, Fig. 7, one or more parts 2 of the original tube may be left unfinned between the tube ends. Specification 651,774, [Group XXII], is referred to.
Patent GB-1352216-A (GB)
Title: Isolation guarding measuring instrument
IPC: G01R31/28
Filed: 1971-07-22
Abstract: 1352216 Measuring impedance; distinguishing electric signals SYSTOMATION Inc 22 July 1971 [27 July 1970] 34318/71 Heading G1U An arrangement for measuring the impedance of an in-circuit component provides two test leads PL - 2 - 4, PL - 2 - 5 to connect the unknown impedance as part of a feedback amplifier network, and further guarding leads, e. g. PL - 21, which are maintained at the potential of one of the two test leads and which in use are connected to nodes in circuit paths which are in parallel with the component under test. The guarding leads prevent current in such parallel paths disturbing the measurement. A high gain amplifier 1C6, 1C7, is used in the amplifier network, one test lead and the guarding leads being connected to inputs of the amplifier so that they are all maintained at approximately earth potential. According to the position of a mode selector S4, the unknown component is connected as the feedback (if it is resistive or inductive) or input (if it is capacitive) impedance of the amplifier 1C6, 1C7, the input or feedback impedance respectively being provided by a standard resistor R48-R55 selected according to the range required. A reference signal source Fig. 1A, (not shown), and (1C4, 1C5) provides selectably a regulated A.C., positive D.C. or negative D.C. voltage (at TP - C) for use as an input to the feedback amplifier network. The magnitude of the network output is, after amplification (1C8, 1C9) indicated by a digital meter PM - 1 whose decimal point determining circuitry 26 is coupled to the range and mode selecting switches S3, S4. The network output is also passed to an A. C. / D. C. distinguishing and polarity indentifying circuit 27. If the network output is D. C., its polarity is indicated by the lighting of an appropriate lamp L9, L10; if A. C. the lamps will flicker. A standard resistor R56, connectible as though it were an unknown impedance, enables the calibration to be checked. Further positions of the mode selector S4 enable currents and voltages to be measured by being applied, directly or through a standard input resistance R57, R58, to the feedback amplifier network. A modification operating on similar principles is described Figs. 2A-D, (not shown), the guarding leads here being connected directly to earth, the output indicator being an analogue meter (M1), and the A. C. /D. C. distinguishing and polarity identifying arrangement being a centre zero meter (M2) shunted by two back-toback diodes in series with the network output.
Patent GB-1137998-A (GB)
Title: Improvements in or relating to an article working, and in particular polishing, apparatus having a vertical working vessel
IPC: B24B31/02
Filed: 1967-07-26
Abstract: 1,137,998. Polishing. COMPAGNIE GENERALE DES PRODUITS INDUSTRIELS ET DE SYNTHESE. 26 July, 1967 [28 July, 1966], No. 34406/67. Heading B3D. Apparatus for working, in particular polishing, articles comprises a platform 4 rotatable about a first vertical axis xy and at least one working vessel 11 mounted on said platform to rotate about a second vertical axis x 1 y 1  spaced from the first axis, a transmission system 18 connecting a first fixed toothed wheel 3 centred on the first axis and a second movable toothed wheel 17 centred on the second axis and integral with the vessel so as to rotate the vessel about the second axis when the platform rotates about the first axis, the bottom 21 of the vessel being at least partially inclined relative to the horizontal, so as to produce alternating vertical and horizontal movement of the contents of the vessel. The bottom 21 may be corrugated or conical. The vessel 11 is preferably hexagonal or octagonal and has a lining 22 of plastic, rubber &c. To balance the apparatus a number of vessels may be uniformly arranged around the axis xy. When in operation, the vessel 11 is closed by a lid. An emptying aperture 23 leading to a spout 24 is closed by a door 25. A passageway 26 leads from an aperture 27 at the lowest point of the bottom 21 to a tube 28 coaxial with the toothed wheel 17 and extending through an opening 29 in the platform 4 into a fixed collector 31 having a discharge opening 32. To rinse during operation, water is supplied through an inlet in the centre of the lid.
Patent GB-371303-A (GB)
Title: Improvements in and relating to high speed electric machines
IPC: H02K7/16
Filed: 1931-12-11
Abstract: 371,303. Centrifugal machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges.; 2, Friedrich Karl-Ufer, Berlin.) Dec. 11, 1931, No. 34421. Convention date, Dec. 13, 1930. [Class 23.] In an electrical machine for driving a vertical spindle a, in which a main bearing c is arranged within the rotor carrier r, the latter serves as an intercepting and collecting chamber for lubricant. A helical member k on the spindle a rotates in a fixed container i and pumps lubricant through channels n, m, to an upper bearing b from whence it is led by a carrier g to the bearing c. Oil flowing out of the bearing c is caught in the carrier r and passed through a pipe h to the container i.
Patent GB-1198519-A (GB)
Title: Furnace Repair Composition
IPC: C04B35/03
Filed: 1967-07-26
Abstract: 1,198,519. Magnesia refractories; particulate magnesia. VEITSCHER MAGNESITWERKE A.G. 26 July, 1967 [26 July, 1966], No. 34424/67. Headings C1A and C1J. Dead-burned MgO which is treated with oil and used to repair furnace linings has a particle size distribution with a maximum particle size of 15 mm such that 20-50% by weight has a diameter of 0À1-0À5 mm. and at most 10% has a diameter below 0À06 mm. It may be obtained by grinding, sieving out the fine particles, and replacing them with a fraction which is predominantly 0À1-0À5 mm. in size. The added material may be the coarse material from an air separator, waste dust, or a sieved-out component, or mixtures thereof, and preferably has at least 80% of particles 0À06-0À5 mm. in size and at least 50% of particles 0À1-0À5 mm. in size. The component above 0À5 mm. in size (e.g. a 2-6 mm., 5-10 mm. or 10-15 mm. fraction) may be lime-rich (10-20% Ca), e.g. obtained from dolomitic magnesite or from a mixture of dolomite and magnesite, and the component 0À1-0À5 mm. in size may be Fe rich (e.g. up to 8% Fe 2 O 3 ). The amount of oil may be 1%. In the examples, 3 or 4 different fractions are used, and the full particle size distributions from 0-15 mm. are given.
Patent GB-1113268-A (GB)
Title: Anti-fouling coatings
IPC: C08L63/00
Filed: 1965-08-11
Abstract: Surfaces, e.g. of steel, aluminium, wood or plastics are coated with an antifouling and anticorrosion marine coating composition comprising a base vehicle pitch (e.g. coal tar pitch), an epoxy resin having an epoxy equivalency >1, a curing agent for the resin and an organotin compound of formula R3SnA or (R3Sn)2B in which R is a C1-C8 alkyl radical, A is a monovalent salt or ester forming radical.  A is a monovalent salt or ester forming radical and B is an oxide or sulphide radical or a divalent salt or ester forming radical. Examples of suitable tin compounds are: tri-n-propyltin acetate, tri-n-butyltin acetate bis (tri-n-butyltin) maleate, bis (tri-n-butyltin) oxide and tri-n-butyltin chloride.  The epoxy resin may comprise 5-95% by weight of the total resin and pitch and the organotin compound form 5-20% by weight of the composition.
Patent GB-173155-A (GB)
Title: Improvements in tools for sharpening the knives of guillotine cutting machines and other like knives
IPC: B24B3/38
Filed: 1920-12-07
Abstract: 173,155. Noble, E. Dec. 7, 1920. Machine cutters, grinding in situ.-A. tool for sharpening guillotine-machine and like knives comprises a base a having pivoted thereto, between ears d, a clamp h. This clamp comprises jaws h<1>, h<2> between which is held an oil stone, or carborundum, or other abrasive block i; the block may comprise two parts i<1>, i<2> of different grain. The block is adjusted about its pivots g by means of a link n which is pivoted at o to a projection m of the clamp and has a slot p therein. The slot engages a bolt s carried by a member q pivoted at r to lugs e on the base, and the block is secured in the adjusted position by a nut u screwing on the bolt. On the base are projections f which are gripped by the hands of the operator, and secured beneath the base is a wooden piece presenting a plane surface c which rests on the table of the machine. In operation, the block i is adjusted to an angle to suit the bevel of the knife, and the tool is then moved over the surface of the table with the block in contact with the blade, as shown in Fig. 4. The block is then adjusted to make a right-angle with the table, and the flat side of the blade is ground to remove burrs, the base remaining on the same side of the blade during both operations. In modifications, the block may be held in the adjusted position by a nut or screw on the pivot g, or by a curved slot and a screw; the wooden piece may be omitted from the base, and the base may be so shaped as to prevent the block from being rotated, in one direction, beyond a position at right-angles to the table.
Patent GB-466361-A (GB)
Title: Improvements in or relating to electric resistance elements or refractory supports therefor
IPC: H01C3/20
Filed: 1935-12-13
Abstract: 466,361. Electric heating resistances. WALSALL CONDUITS, Ltd., WHALLEY, W., and READ, A. E. Dec. 13, 1935, No. 34551. [Class 39 (iii)] The base of the helical groove in the support 5 is provided with projections 13, which may be of triangular section, and enter the spaces between the turns of the resistance coil 7 arranged in the grooves. Terminals 9, 10 are secured in the support by screws 11.
Patent GB-1012457-A (GB)
Title: Improvements in and relating to the fitting of resilient inserts in cavities
IPC: B29C70/68
Filed: 1962-09-10
Abstract: 1,012,457. Assembling resilient bushes. ROBINS CONVEYORS (SOUTH AFRICA) PROPRIETARY Ltd. Sept. 10, 1962 [Sept. 16, 1961], No. 34552/62. Heading F2S. A method of locating a resilient insert in a cavity therefor of smaller dimensions comprises the steps of dividing the insert 7, which, e.g., as shown is in the form of a flat slab of resiliently flexible material, into at least two segments 6, urging the segments into moulds 8 to reduce their cross-sectional areas and form them into the required shape, causing the segments to set hard in the moulds by temperature reduction, removing the segments from the moulds, placing the hard set segments into the cavity and allowing them to thaw out and be resiliently constrained under compressive stress, within the cavity. The parts 6, which are pressed into the moulds by associated pistons 9, collectively form a bush, e.g. for resiliently interconnecting two coaxial shafts.
Patent GB-1322068-A (GB)
Title: System for encoding input signals
IPC: H03M11/08
Filed: 1970-07-16
Abstract: 1322068 Electric selective signalling CANON KK 16 July 1970 [17 July 1969] 34564/70 Heading G4H Signals from the function keys of an electronic calculator are converted to n-bit signals from which a plurality of calculator control signals are derived some of which are common to different keys. Operation of any of the function keys 20-30, some of which may be operated simultaneously, generates via the diode matrix of Fig. 3 a 4-bit signal on leads EC1-EC4 which is sent to the calculator where a decoding matrix (Fig. 4) from the 4-bit signal on leads 60-63 and its inverse form on leads 68-71, generates control signals CR1-CR7. Some of the keys give two or more control signals, some of which signals being common to different keys. The arrangement shown in Fig. 4 may be embodied by a MOS transistor matrix (Fig. 5, not shown).
Patent GB-966068-A (GB)
Title: Butadiene polymerization
IPC: C08F4/48
Filed: 1962-09-11
Abstract: A polymerization catalyst for butadiene is made by reacting LiAl tetraalkyl and/or LiAl alkylhydride with TiBr4 and I2, IBr, ICl, and a mixture of I2 and Br2 which contains more than 30 mol per cent. of iodine, the proportions of the catalyst components being such that the molar ratio of TiBr4 and halogen being within the range of 1:1 to 1:6, and the molar ratio of TiBr4 and the LiAl compound being within the range of 1:2.5 to 1:8.  The polymerization is generally effected in an inert hydrocarbon diluent, and the catalyst may be formed in situ. The polybutadiene which can be vulcanized, has a high film strength and a cis-1,4 content of not higher than 95%. The LiAl compounds may be LiAl(C4H9)4, LiAl(n-C4H9) (isoC4H9)3, LiAl(n-C8H17) (C2H5)3, or <FORM:0966068/C3/1>