baber/WOPTO huggingface dataset:
Patent GB-1441595-A (GB)
Title: Electrical inverters
IPC: G05F1/10
Filed: 1973-11-08
Abstract: 1441595 Inverting; control of A.C. motors DANFOSS AS 8 Nov 1973 [8 Nov 1972] 51973/73 Headings H2F and H2J In or for an inverter, e.g. of the type described in Specification 1,262,345 and comprising a bridge of controlled rectifiers with a common commutation circuit for all said controlled rectifiers, an overvoltage protection device comprises an energy-dissipating circuit connected across the D.C. supply lines in series with a thyristor or other controlled switching device responsive to excessive voltage across said D.C. lines. The invention is particularly applicable to dissipating the overvoltage produced when the inverter is driving an asynchronous motor and the motor is switched off or is regenerating. Figure 3 shows the control circuit for the protecting thyristor which switches a resistor across the D.C. supply in the event of overvoltage. Terminals 68 and 43 are connected across D.C. supply lines so that if the voltage exceeds a value determined by reference diode 45, transistor 44 becomes conductive, turning on the reciprocally coupled transistors 54, 55 which act as an SCR and turn on transistor 64 which supplies a pulse via transformer 65 to terminal 35 feeding the protecting thyristor. Transistors 54, 55 are periodically turned off by the discharge of capacitor 59 so that if the overvoltage remains a train of pulses will be produced by transistor 64.
Patent GB-1162247-A (GB)
Title: Cephalosporanic Acid Derivatives and a Process for the Preparation thereof
IPC: C07D501/26
Filed: 1966-11-23
Abstract: 1,162,247. Cephalosporanic acid derivative. BRISTOL-MYERS CO. 23 Nov., 1966 [24 Nov., 1965], No. 52443/66. Heading C2A. The invention relates to D-, L- and DL-7- (2,2 - dimethyl - 5 - oxo - 4 - phenyl - 1 - imidazolidinyl)-cephalosporanic acid (hetasporin) of formula and pharmaceutically acceptable salts thereof. The compound is prepared by reacting 7-(D-α- aminophenylacetamido) cephalosporanic acid, or a salt thereof, with at least an equimolar weight of acetone in the absence of substantial amounts of water at a pH in the range of 5 to 9 and at a temperature of - 20 to + 50 C. Salts are formed with the acidic carboxylic acid group, e.g. sodium, ammonium, triethylamine, procaine and dibenzylamine and salts with the basic N, e.g. hydrochloride, sulphate, ascorbate, citrate, succinate and p-toluene sulphonate. A pharmaceutical composition for human and animal use comprises the above antibacterial cephalosporanic acid or a salt thereof and a carrier. The compounds may be used for treating mastitis in cattle.
Patent GB-1493258-A (GB)
Title: Arrangement for treating a ship's hull
IPC: B63B59/06
Filed: 1974-12-04
Abstract: 1493258 Cleaning and painting hulls MAASTRICHTSE MACHINEFABRIEK DELNOZ BV 4 Dec 1974 [11 Dec 1973] 52493/74 Heading B7M Apparatus for treating the wall of a docked ship comprises a frame 10 movable horizontally along a dock wall on rails 4 and 5, the frame having vertical guides 11 upon which a carriage (17) can move, Fig. 2, not shown, and a hinged two-part arm 30 for supporting the treating equipment. The arm 30 has a part 31 which is supported on the carriage (17) so as to be swingable in a horizontal plane, and a part 33 mounted on the part 31 so as to be swingable in horizontal and vertical planes with respect thereto. A bracket 34 is hingedly mounted on the part 33, and maintained horizontal at all times by rods 35. A platform 40 is mounted on bracket 34 and is rotatable about a vertical axis. A frame 41 is rotatably mounted about a horizontal axis on the side of platform 40. The frame 41 carries sand or grit blasting equipment, wire brushes, or paint spraying equipment. The position of the apparatus with respect to a ship's hull is controlled by sensors 47, 48, 49 and an electrohydraulic control system.
Patent GB-1034610-A (GB)
Title: Vinyl thermoplastic resin compositions and process for the preparation thereof
Inventor: KOSTAS GEORGE JAMES
IPC: C08K5/00
Filed: 1964-12-29
Abstract: A composition comprising a vinyl thermoplastic resin, e.g polystyrene or polyethylene, and an internal lubricant which is a C10- 30 aliphatic alcohol, a carboxylic acid ester thereof (containing 1-10 C atoms in the carboxyl groups) or an alkoxylate thereof may be produced by polymerizing the monomers in the presence of, e.g. 0.1-10% of the internal lubricant or by blending the resin and lubricant. The alkoxylate may be propoxylate or ethoxylate of the above alcohol.  The resin may be in pellet form which is surface coated with the above lubricant, e.g. as a dispersion in a C1- 6 alcohol, e.g. methanol.ALSO:Vinyl thermoplastic resins, in pellet form are surface coated with a dispersion of a C10-30 aliphatic alcohol, a carboxylic acid ester thereof (the carboxyl group containing 1-10 C atoms) or an alkoxylate thereof in a C1-6 alcohol, e.g. methanol.
Patent GB-1452503-A (GB)
Title: Gear pumps for oil burners
IPC: F16H57/00
Filed: 1973-11-13
Abstract: 1452503 Shaft couplings DANFOSS AS 25 Nov 1974 [13 Nov 1973] 52703/73 Heading F2U A key 6, for coupling a gear 7 of an internally-meshing gear pump to a shaft 2, is made of a material comprising polyphenylene sulphide. The material may also contain up to 40% of reinforcing glass fibres, and is said to reduce fretting corrosion. The key 6 engages in a slot 5 (or alternatively in an aperture) at the end of shaft 2 and engages in slots 16 in gear 7. The key 6 permits radial movement of gear 7 relative to shaft 2 to compensate for misalignments.
Patent GB-1496897-A (GB)
Title: Process and apparatus for the location of material discontinuities in geological deposits using electromagnetic waves
IPC: G01V3/12
Filed: 1974-12-06
Abstract: 1496897 Pulse radar KALI UND SALZ AG 6 Dec 1974 [6 Dec 1973] 52876/74 Heading H4D In a process which enables material discontinuities in geological formations to be located using transit time measurements of radio waves reflected from said discontinuities a transmitter of frequency 1 to 500 MHz radiates pulses of durations 0À1 to 1 micro-second at a recurrence frequency of 10 to 1000 Hz from underground locations along which it is possible to walk. The power and frequency of the transmitter are varied to suit the particular conditions of use. The pulses are recorded by means of receiving apparatus, having a resolution of 1/100 micro-second. The location of said material discontinuities are further determined by taking measurements with different spacings between transmitting and receiving aerials, or by making measurements with a receiving aerial having directional characteristics set at different orientations. As described, a transmitter comprises a secondary battery, a high-voltage solid state D.C. generator with an output of 0À1 mA at 20 kV, a resistance voltage-divider, two resistors feeding a variable spark gap, and a dipole aerial, which is fed with the D.C. voltage (Fig. 1, not shown). The receiver also comprises a dipole aerial, and it is provided with an amplifier and an oscilloscope, the display of which is photographed. As is shown in Fig. 3, the transmitter and the receiver may be spaced apart (e.g. > 5 m.) on respective stands in a mine gallery. Provision is made for synchronizing the receiver with the transmitter. Measurements may relate to the boundaries between rock salt and carnallite or anhydrite or clastic rocks &c.
Patent GB-1128980-A (GB)
Title: Improved method of manufacturing pies
IPC: A21D13/08
Filed: 1966-11-26
Abstract: 1,128,980. Pies. P. R. G. YOUNG. 18 Sept., 1967 [26 Nov., 1966], No. 53043/66. Heading A2B. The bottom and sides of an open topped sealable container, such as a tin, are lined with a flour pastry, a filling, such as chicken, pork, ham, steak and kidney, or bacon, with or without vegetables such as onions, which may be minced or in the form of lumps, together with an edible jelly, is introduced into the lined container and a pastry lid is applied, after which the container and contents are heated for a predetermined time, for example 350‹F. for 35, minutes, the contents pressed down level with the top of the container, a lid is applied to the container and sealed on, and the sealed container and contents again heated for a predetermined time, for example 250‹F. for 65 minutes. The pastry may be made from self-raising flour, rice flour, soya flour, butter, egg, and salt.
Patent GB-1451756-A (GB)
Title: Combine harvesters
IPC: A01D61/00
Filed: 1972-11-16
Abstract: 1451756 Rock damage protection MASSEY-FERGUSON GmbH 14 Nov 1973 [16 Nov 1972] 53059/72 Heading AIF  A stone trap for a combine harvester consists of: a crop elevator 16 having an underside 40 partially constituted by a plurality of transverse bars 42; an L-shaped bracket 53 against which abuts a plate 51 which, extends across the full width of the elevator, is pivoted about 61 to a concave 14, and has three rectangular transversely spaced holes 57 through which stones may pass; a second conveyor 50 positioned below the bars 42; a screen 54 and a support member 56 which forms a gutter 58 at its lower end and is resiliently hinged at 62 to a grain pan 48. In operation the scraper bars 38 of the elevator conveyor 32 move crop and stones up the inside of the elevator underside 40. Loose grain falls through the bars 42, along with small stones, onto screen 54. The remaining crop and larger stones continue up to plate 51 where rotor 46 feeds crop to the threshing apparatus and holes 57 allow the larger stones and further loose grain to fall through onto screen 54 which has a sieve like construction. Scraper bars 52 move grain and stones down screen 54, the grain falls through onto support member 56 and the stones are discharged at an opening A formed between the support member 56 and the elevator underside 40; and move grain up support member 56 and discharge it into a grain pan 48. In another embodiment the bars 42 are replaced by a continuation of the elevator underside 40. A feature of the device is that it never needs emptying.
Patent GB-1458479-A (GB)
Title: Cassette tape recording and/or reproducing apparatus
IPC: G11B25/06
Filed: 1974-12-09
Abstract: 1458479 Cassette tape recorder PAPSTMOTOREN KG 9 Dec 1974 [11 Dec 1973] 53117/74 Heading G5R In a cassette tape recorder in which the supply and take up reels and at least one capstan are driven by separate motors and in which the recorder includes a main housing and a casing part which is moved with an entered cassette from a loading position to an operational position, at least one of the motors is incorporated in the casing part to operatively engage the cassette from the opposite side from the motors in the main housing. Casing part 3, which with entered cassette 9 is pivoted about hinge 10 into a horizontal operating position, includes the two drive motors (only 5 shown) for the reels of the cassette. Capstan 12 is driven by motor 13 in the main housing 1. In a second arrangement, Fig. 5 (not shown), the casing part with the two reel drive motors and the entered cassette are linearly displaceable to the operating position and in a third embodiment, Figs. 6 and 7 (not shown), using two capstans, one reel drive motor and one capstan drive motor as included in the movable casing portion and the other reel drive motor and the other capstan motor are included in the main housing.
Patent GB-533852-A (GB)
Abstract: 533,852. Drying oils from marine sources. TENNANT, W. J. (Armour & Co.). July 21, 1939, No. 21223 [Class 91] A coating composition comprising a drying oil is prepared from marine oils by a process consisting of hydrolysing a marine oil to produce a fatty acid mixture and fractionally distilling this to obtain a fraction which contains a higher concentration of C 22  unsaturated fatty acid radicals than is contained in the original oil. The preferred method of fractional distillation is described in Specification 533,847. The preferred fish oil mentioned as starting material is sardine oil, and the preferred initial splitting process is the Twitchell process. If desired the final composition rich in C 22  acids may be modified by an addition of a C 20  fraction. It is preferred that the C 22  rich fraction be re-esterified to form a synthetic tri-glyceride. In an example sardine oil is hydrolysed by the Twitchell process, and the prepared fatty acid material fractionally distilled under reduced pressure. In addition to the usual applications of drying oils, the products of the present invention may be used to produce alkyd resins. Specification 477,207 also is referred to.
Patent GB-1491457-A (GB)
Title: Pharmaceutical preparations
IPC: A61K31/50
Filed: 1974-12-16
Abstract: 1491457 Anti-hypertensive preparations SANDOZ Ltd 16 Dec 1974 [19 Dec 1973] 54158/74 Heading A5B Anti-hypertensive compositions and twocomponent packs for preparing such compositions comprise (a) a 3-hydrazino - 5, 6, 7, 8 - tetrahydropyrido [4, 3-c] pyridazine or a 3 - hydrazino - cycloalkane [c] pyridazine and (b) a beta. - blocking agent. The beta - blocking agent may be of formula: or R" O CH 2  CH (OZ) CH 2  NHR 9 ' wherein R is a radical containing at least one 6 - membered aromatic ring by which it is bound to the rest of the molecule, R 9  is C 1-5  alkyl, R" is 4 - moloyl, 4 - methyl - 4 - indolyl, 4 - oxindolyl or 9 - fluorenon - 4 - yl, Z is H or an aliphatic acyl radical and R 9 ' is C 1-5  alkyl. Many examples of both active ingredients are specified.
Patent GB-1479519-A (GB)
Title: Indeneacetic acids
IPC: C07C315/04
Filed: 1974-12-16
Abstract: 5-Fluoro-2-methyl-1-(p-methylsulphinylbenzylidene)indenyl-3-acetic acid or its salts are prepared. The said acid is obtained by condensing 5-fluoro-2-methyl-1-R1-benzylindene, where R1 is p-methylthio or p-methylsulphinyl, with glyoxylic acid, its salt or ester to give the corresponding 5-fluoro-2-methyl-1-(p-methylthio- (or methylsulphinyl)benzyl)indenylidene-3-acetic acid, its salt or ester. If R1 is p-methylsulphinyl, the indenylidene compound is isomerised to indenyl-3-acetic acid. If R1 denotes methylthio, then the resulting indenylidene-3-acetic acid is isomerised to 5-fluoro-2-methyl-1-(p-methylthiobenzylidene)indenyl-3-acetic acid and the p-methylthio radical is then oxidised to the p-methylsulphinyl group. However, the oxidation can also be carried out first and the isomerisation subsequently. The said compounds can be used as active agents in anti-inflammatory medicaments.
Patent GB-1453622-A (GB)
Title: Process and apparatus for the mashing/digestion of oleaginous fruits especially oil palm fruits
IPC: C11B1/04
Filed: 1973-11-24
Abstract: 1453622 Digester STORK AMSTERDAM BV 24 Nov 1973 54629/73 Heading B1X [Also in Division C5] A horizontal digester comprises a horizontal tubular housing 1 containing annular sections 2 attached to the inside of housing 1 which are provided with obstructions (e.g. protuberances, bars, rods or helical screw blade sections) to the flow of material to be digested and propelling means in the form of two opposed pistons 4 and 5 or a screw for propelling the material from the inlet hopper 3 to the outlet 6 and in the opposite direction. A steam inlet 9 is also provided. Liberated liquid product may be drawn off through perforations 8 in the housing.
Patent GB-1122669-A (GB)
Title: A tool for ripping seams and the like purposes
Inventor: BRIDGES HARRY
IPC: A41H31/00
Filed: 1965-12-24
Abstract: 1,122,669. Seam rippers. NEEDLE INDUSTRIES Ltd. 22 Dec., 1966 [24 Dec., 1965], No. 54848/65. Heading B4B. A tool for ripping seams comprises a shank 11 including a stem portion 16 and a prong portion 17 terminating in a point 18, a spur portion 19 extending obliquely in the rearward direction and being connected to the junction between the portions 16, 17 by a web portion 20 of reduced thickness in comparision with the portions 16, 17, 19, the web portion 20 being provided with a sharp ripping edge 21 and the prong portion 17 being provided with a sharp cutting edge 22. The tool comprises a handle 10 having a slot 9 in which the shank 11 is pivotable from its operative position in which it abuts a stop face 13 to an inoperative position in which it abuts a stop face 14.
Patent GB-1418900-A (GB)
Title: Bundling strap
IPC: F16L3/233
Filed: 1972-11-28
Abstract: 1418900 Bundling straps MANX MAIL ORDER Ltd 18 Feb 1974 [28 Nov 1972] 54937/72 Heading E2B The serrated tongue 10B of a plastics bundling strap is secured by a pawl 14 which is attached within head 24, 26 by a pair of flexible webs 18, 20, of which one is connected to the top of an aperture 16 in the base of the head and the other is connected to the bottom, so that axial deflection of the pawl under strap loading causes it to ride up into firmer gripping engagement.
Patent GB-1065760-A (GB)
Title: Improvements in or relating to oil burners
Inventor: SCHRETER ROBERT EDWARD
IPC: F23D11/12
Filed: 1965-12-31
Abstract: 1,065,760. Burners. HAUCK MANUFACTURING CO. Dec. 31. 1965, No. 55474/65. Heading F4T. An oil burner in which the oil is atomized by low pressure air comprises an oil tube 12 surrounded by an atomizing air tube 14 surrounded by a combustion air tube 16, and a spray tip 26 comprising radial oil discharge passages 28 and a divider sleeve 32 dividing the atomizing air into two streams. The divider sleeve forms with the tip 26 an air passage of decreasing cross-section and is provided with flat or helical spin vanes 44. Further radial non-spin vanes 48 are secured to the outside of the divider 26. The tip 26. has a step 30 upstream of the discharge passages 28. The edges of the divider 26 and the spray tip are sharp. The combustion air is rotated in the opposite direction to the atomizing air by adjustable vanes 90. The assembly of oil tube, spray tip and divider sleeve is axially adjustable relative to the atomizing air tube 14. In a modification (Fig. 10) a tube (70) supplied with gas is disposed between the atomizing air tube (14<SP>1</SP>) and the combustion air tube (16<SP>1</SP>).
Patent GB-1454295-A (GB)
Title: Electromagnetic valve
IPC: F16K31/06
Filed: 1973-11-30
Abstract: 1454295 Valves ALFRED TEVES GmbH 30 Nov 1973 [20 Dec 1972] 55638/73 Heading F2V In an electromagnetically operated valve the armature 1 comprises two plates which pivot on the outer edges, the inner edges having semicircular cut-out portions the edges of which engage under a collar 12 of an operating member 13 to which a valve closure member 7 is attached. The plates are attached to the member 13 by means of clips 6 which engage an annular element 16 located on the member 13 by a collar 15. The armature is biased by a starshaped spring 5 a central opening of which engages the annular element 16, the outer ends engaging a step in the housing wall. A filter 8 is provided over an inlet 18 to the valve. In alternative embodiments, Figs. 4, 5 (not shown), in the form of three-way valves for use in anti-skid brake control systems, the lift valve 7 is replaced by pressure-balanced spool valves. In the embodiment of Fig. 4, pressure at an outlet point (34) connected to a brake cylinder is fed to each end of the valve spool which comprises two mechanically connected pistons (36) (37) of slightly different diameters. In the embodiment of Fig. 5, pressure at an inlet port (65) is fed to each end of the valve spool which comprises a free piston (52) abutting the spool member proper which is connected to the armature plates.
Patent GB-1165549-A (GB)
Title: Improvements in Multifocal Lens Blank Manufacture.
IPC: B24B13/00
Filed: 1966-12-13
Abstract: 1,165,549. Grinding. UNIVIS Inc. 13 Dec., 1966 [12 Jan., 1966], No. 55808/66. Heading B3D. [Also in Division G2] A bifocal lens blank 20 (Division G2) is provided with referencing means at its peripheral edge for indicating the position of the reading portion of the blank. The lens blank is first aligned with a target (Fig. 14, not shown) and clamped in position. The periphery of the lens blank is then milled to produce two reference flats by grinding wheels 80, 82 which are adapted to move along slides 84, 86 respectively. The distances of the reference flats from the centre of the blank are adjusted by moving the slides 84, 86 towards and away from the lens blank 20. The finished blank is then mounted on a block 94 (Fig. 17), the reference flats being arranged to abut against adjustable stops. A second lens block 92 is positioned on the lens blank and accurately aligned with the block 94 by means of a gimbal arrangement 110. A rotatable dial 132 carries two pins 136, 138 arranged to engage recesses 140, 142 provided in the block 92. The dial is rotated until the line joining the two pins is parallel with the cylinder axis of the lens blank 20. The block 92 is then secured to the lens blank with a lowmelting point alloy 150 which is poured in molten state into a recess between the block 92 and the lens blank. The blank is thus accurately mounted on the block 92 for shaping the free surface to the required configuration.
Patent GB-1180597-A (GB)
Title: High Load Capacity Bearing
IPC: F16C33/04
Filed: 1967-12-08
Abstract: 1,180,597. Laminates. KUGELFISCHER GEORG SCHAFER & CO. 8 Dec., 1967 [27 Dec., 1966], No. 55910/67. Heading B5N. [Also in Division F2] A hydrodynamically operating multi-component bearing of the kind comprising a number of spaced supports, each of which, when the bearing has a shaft or other supported member engaged by it, is, in the rest condition, in extensive surface contact with the running surface of the shaft or other supported member but in the running condition is separated from that surface by a layer of lubricant. Each support comprises a force-spreader supporting intermediate block means and a bearing body which is formed of an adhesive layer applied to the block means, a layer of syntheticresin-impregnated glass fibre fabric, a second layer of adhesive and an outer running surface layer. The outer running surface layer may comprise a laminated foil of steel and white metal, the latter lying outermost; or may comprise a synthetic resin foil. In the manufacture of a bearing member, a block 26, Fig. 6, which is an integral force-spreader and intermediate block, has adhesive 5, Fig. 1, applied thereto. A body 6, comprising one or more layers of glass fibre impregnated with synthetic resin, is applied to the adhesive layer 5 and is then coated with an adhesive layer 7 to which is finally applied a surface 8 made up either of a laminated steel/white metal foil 9, 10 or of a synthetic resin foil. A number of such assemblies are placed in a press where they are pre-loaded at a pressure of 400 Kg. per square centimetre and are heated in an oven having an initial temperature of 80 C. The temperature is raised to 100 C. and between 100 and 120 C., the pre-loading is adjusted at each temperature increase of 5 C. From 120 C. onwards, the pressure is maintained constant, a further increase of temperature (up to 180 C. for the laminated steel/white metal foil) curing the layers 5, 6 and 7.
Patent GB-559455-A (GB)
Abstract: 559,455. 2 - Amino - 4 - chlorpyrimidine, AMERICAN CYANAMID CO. May 22, 1942. No. 7012. Convention date, May 24, 1941. [Class 2 (iii)] 2-Amino-4-chlorpyrimidine is prepared from isocytosine (2-amino-4-hydroxypyrimidine) by treatment with phosphorus oxychloride in the presence of a small amount of chlorsulphonic acid. The latter may be added in the preformed state or may be formed in situ by the interaction of phosphorus oxychloride and a small amount of isocytosine sulphate. The amount of chlorsulphonic acid should be sufficient to induce rapid reaction but small compared with the amount of isocytosine. In examples: (1) chlorsulphonic acid is added to phosphorus oxychloride, followed by isocytosine. The reaction mixture is heated with agitation to 90-95‹ C. for 5 hours and then treated with ice. The 2-amino-4-chlorpyrimidine which is formed in 93 per cent. yield is filtered. (2) As in example (1) using a slightly less amount of phosphorus oxychloride. (3) Isocytosine acid sulphate is added to phosphorus oxychloride and the mixture heated to 90‹ C. After the exothermic reaction is over the reaction mixture is cooled and isocytosine added. The procedure for example (1) is now followed.