baber/WOPTO huggingface dataset:
Patent GB-1489225-A (GB)
Title: Curved vane for throwing wheels
IPC: B24C5/06
Filed: 1974-10-25
Abstract: 1489225 Blasting CARBORUNDUM CO 25 Oct 1974 [29 Oct 1973] 46364/74 Heading B3D A particle throwing vane 16 for a centrifugal throwing wheel 10 of the type including a rotatable runner head 12 comprises a curve extending forwardly in the direction of intended rotation, the curve forming an angle between a radius extending from the proposed centre of rotation through the outer tip of the wheel and a line tangential to the curve at the outer tip, the angle being between 25 and 35 degrees. The wheel is rotatable about an axis 14 and the vanes 16 are formed with dove-tailed edges 30 received in slots in the runner head 12. The vanes are mounted by being slid along the slots until they approach a centre stud 34 and locking pins 36 are inserted in holes in the runner head. The vanes are then moved outwardly and a locking ring 38 fitted to hold the vanes in position. The vanes are curved forwardly in the direction of rotation from an inner end 18 to the outer tip 20, the curve at the outer tip having a tangent T which makes an angle # of 25 to 35 degrees, and preferably 31 degrees 40 minutes, with a radius R extending through the tip. The inner end of the vane lies on a radius r at an angle # to the radius R passing through the outer tip, and the arc of the vane has a radius d and an included angle of #+#. The angle # is preferably 15À88 degrees.
Patent GB-1363921-A (GB)
Title: Process of preparing a light sensitive silver halide photographic  element containing an anti colour stain agent
IPC: G03C7/392
Filed: 1971-10-06
Abstract: 1363921 2 - Sec - octadecylhydroquinone KONISHIROKU PHOTO INDUSTRY CO Ltd 6 Oct 1971 [7 Oct 1970] 46515/71 Heading C2C [Also in Division G2] 2-Sec-octadecylhydroquinone is prepared by heating hydroquinone, 1-octadecene and zinc chloride at 200‹ C.
Patent GB-1112669-A (GB)
Title: Sheet joining
IPC: B65B51/10
Filed: 1965-11-03
Abstract: 1,112,669. Closuring containers. L'ALUMINIUM FRANCAIS. 3 Nov., 1965 [5 Nov., 1964], No. 46539/65. Heading B8C. [Also in Divisions B3 and B5] In a process of joining sheets 2, 3, a thermoplastic joining strip 1 having, in cross-section, adjacent surfaces 101, 102 which form substantially a right-angle therebetween, is positioned so that the surface 101 contacts the rim 201 of the sheet 2 and a lateral portion 104 carrying the surface 102 is heated and deformed to contact the rim 301 of the sheet 3 so that the strip embraces the rims 201, 301. The strip 1 is slightly notched at 103 so as to facilitate the positioning of the sheet 2. The portion 104 is pressed on to the rims 201, 301 by shoes sliding on this portion while turning about an axis or by rollers. Heat is either supplied by resistance or induction heating or by the friction of the shoes or rollers against the portion 104. In one embodiment, Figs. 4-8 (all not shown), for use when the rims (201), (301) are circular, the apparatus comprises at least one roller (4) rotatable about an axis (401) disposed in a plane containing the axis (105) of the rims (201), (301) and which is also rotatable about an axis (402) perpendicular to this plane. The roller (4) is held in position by ball and roller bearings (404), (405), respectively. In use, the sheets (2), (3), the strip (1) and the rotating roller (4) are rotated about the axis (105) and the roller (4) is swung about the axis (402). In a modification, Fig. 9 (not shown), a grooved roller (41) rotates about its shaft (411) and swings about a shaft (412), an arm (413) connecting the two shafts. The rims (201), (301) and the strip (1) are held in position by a freely rotatable grooved roller (51). In a further modification, Fig. 10 (not shown), a grooved roller (42) rotates about a shaft (421) and swings about a shaft (422) and is formed with a ridge (427) to engage the strip (1). The elements to be joined are supported against a fixed member (62) having a ridge (627) and maintained at a suitable temperature by an electric circuit (628). In modifications of the joint construction, the strip (1) may comprise a rib (111) to form ribs (211), (311) on the sheets, Figs. 11 and 12 (not shown), at least one of the sheets may be formed with openings (212) to correspond with protuberances (112) on the strip (1), Figs. 13 and 14 (not shown), the sheet (2) may have a turned or beaded edge (213) to be received in a groove (113) in the strip (1), Fig. 15 (not shown), or the sheet (2) may be provided with a beaded edge (214) which fits into a groove (114) in the strip (1) and the sheet (3) may be provided with a rib (314) which forms a beaded edge (315) after the pressing operation, Figs. 16 and 17 (not shown). The invention is applicable to applying closures to portable containers made of metals, alloys, plastics, material, cardboard or paper.
Patent GB-1489144-A (GB)
Title: Quick-action coupling for pipes or tubes
IPC: F16L37/18
Filed: 1975-11-11
Abstract: 1489144 Pipe couplings HELLENIC PLASTICS & RUBBER INDUSTRY ARISTOVOULOS G PETZETAKIS SA 11 Nov 1975 [12 Nov 1974] 46616/75 Heading F2G A releasable pipe or hose coupling comprises male and female members 1, 2 of plastics material for attachment to respective ends of pipes or hoses 28, 29 to be coupled, e.g. by adhesive or by use of a compression clip, the female member 2 receiving the male member 1 with the interposition of a sealing ring 12 therebetween, and the female member having pivotally mounted thereon at least two overcentre locking levers 18, and each lever having a first part 23 which engages in an arcuate recess 7 in the male member 1 and co-operates therewith to draw the members together as the lever is moved from a release position toward the clamping position shown, and a second part 24 which engages with a V-shape groove 8 in the male member and has an abutment surface 25 contacting an abutment surface 9 of the groove 8 to prevent axial separation of the members 1, 2. The seal contacting end 10 of the male member 1 is provided with a series of concentric grooves to improve the seal.
Patent GB-1489084-A (GB)
Title: Simulated watermarking
IPC: B41M3/10
Filed: 1975-10-28
Abstract: 1489084 Imitating watermarks; security paper TULLIS RUSSELL & CO Ltd 28 Oct 1975 [29 Oct 1974] 46858/74 Headings B6A and B6C  A watermark is simulated in a paper sheet by impregnation in a desired pattern by a fluent, transparentizing composition which is polymerizable upon activation by radiation, the impregnated sheet then being irradiated with suitable activating radiation. The composition is made up of unsaturated monomers, unsaturated prepolymers and radiation stimulated polymerization initiators, examples of which are specified. The composition is screen or gravure printed in the desired pattern on to one surface of the paper, and suction may be applied to the opposite surface during or after the printing operation. Solvent may be applied to the printed surface by a spray roller or pad before irradiation, which may be by electromagnetic radiation such as U.V., X-, or γ-rays, by particle radiation such as a or # radiation, or by high energy proton or neutron beams. Added security may be imparted to the marked paper by arranging the watermark pattern in the form of lines or dots exhibiting a Moire effect. The watermark may be in two or more colours. Alternatively, the mark incorporates a colour former or inhibitor so that, with a suitable reagent applied to the paper, either the watermark or the surrounding sensitized paper area changes colour. Two or more colour forming watermarks may overlap and produce different colours. In a further embodiment, both colour forming reactants are applied, in powder or capsule form, in the watermark, and produce a colour when the paper is stamped.
Patent GB-1099623-A (GB)
Title: Web winding apparatus
IPC: B65H18/22
Filed: 1965-11-05
Abstract: 1,099,623. Winding webs. F. W. MEANS & CO. Nov. 5, 1965 [May 3, 1965]. No. 47133/65. Heading B6B. A machine for the core-less winding of webs such as laundered towelling W, includes two continuously driving endless belts 28 and 45. One run of the first belt 28 is supported on a table 32. The second belt 45 has two spring- loaded tensioning rollers 50 and 65. As the leading end of the web W is advanced over the table 32 by the first belt 28, its movement is impeded by a deflectable member 42 which causes the web to be folded upon itself to initiate rolling. Thereafter the member 42 flexes inwardly and allows the started roll to advance to the bight formed by the two belts. The winding is then completed, the roller 65 moving in the direction of the broken arrow to allow the second belt 45 to accommodate the increasing diameter of the web-roll (Fig. 4). A photo-electric detector E senses the passage of the trailing end of the web W, and causes a fluid cylinder 72 to lift the roller 65 sufficiently to permit the fully wound web-roll to advance to a discharge portion of the apparatus. Transverse registering of the web is achieved with guide members (G, Fig. 2) which are mounted along either side of the belts 28 and 45 in the winding area. The web may be tensioned by a pinch roller 26.
Patent GB-1280464-A (GB)
Title: Improvements in or relating to combine harvesters
Inventor: THEOBALD PETER REGINALD
IPC: A01D41/127
Filed: 1968-10-04
Abstract: 1280464 Automatic control of harvesters RANSOMES SIMS & JEFFERIES Ltd 29 Sept 1969 [4 Oct 1968] 47145/68 Heading G3R The rate of loss of grain at a selected location in a combine harvester is determined electronically and compared with a desired rate so that any difference is effective to correct the rate by automatic control of the forward speed of the harvester. In Fig. 1, a crystal microphone 103, mounted beneath a plate placed to receive a sample of the discharge from the straw walkers or sieves in a combine harvester, is associated with transistor amplifier, Schmitt-trigger, and multi-vibrator circuits, to produce pulses of constant amplitude and width corresponding to the passage of individual grains in the sample. This pulse producing circuit is energized periodically through contacts 101a of a relay controlled by a transistor clock circuit 100 and during each period the pulses are counted by a staircase generator 102 until a voltage is produced corresponding to a number of grains determined by the setting of a rheostat 107. A thyristor-controlled relay 106 then operates to change over contacts 106a. If this count is achieved in less than the time required for a thyristor-controlled time-delayed relay 105 to operate, indicating that too much grain is being lost, a solenoid-operated hydraulic valve 111 is actuated to slow down the forward speed of the harvester by adjusting a variable pulley drive to the ground wheels. If, however, the loss of grain is too small, relay 105 operates to change over contacts 105a before the count is complete and a solenoid valve 110 is actuated to speed up the harvester. Cleaning of the sample by removing straw with the aid of a fan, or centrifugally, is referred to.
Patent GB-1137660-A (GB)
Title: Device for feeding and loading an explosion generator with explosive charges
Inventor: DUCONGE CLAUDE
IPC: F42D1/10
Filed: 1967-10-18
Abstract: 1,137,660. Feeding an explosion generator with cartridges. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 18 Oct., 1967 [18 Oct., 1966], No. 47497/67. Heading B8S. [Also in Division B3] Explosion cartridges 24 sliding down shoot 23 are urged over stop 23a singly by rocking cam 21, and fall downwards so that, when gate 7 has been swung anticlockwise upon release of lock 12, the cartridge enters tube 1 leading to an explosion generator. The movements are effected by air cylinder 15 via the lever system shown. Water is introduced at 3 and element 6 of gate 7 maintains the tube airtight.
Patent GB-1242487-A (GB)
Title: Gas purge device
Inventor: RIELY PHYLLIS ELEANOR
IPC: A61M5/36
Filed: 1969-09-29
Abstract: 1,242,487. Liquid/gas separator. P. E. RIELY and R. T. SKYLES. 29 Sept., 1969 [3 Oct., 1968], No. 47753/69. Headings B1M and B1T. A gas/liquid separator comprises a liquid repellant filter element 14, Fig. 1, or 35, Fig. 3, through which gas but not liquid passes, and a liquid wettable filter element 15, Fig. 1, or 34, Fig. 3, through which liquid but not gas passes. The separator can be used to separate gas entrained in liquid, or liquid entrained in a gas. The filter elements 14, 15, 34, 35 preferably have a pore size less than 0.3Á. The housing may be clear plastic or metal. The liquid treated may be aqueous body fluids. The filter material may be woven or non woven textile fibres, metal fibres or synthetic fibres, sintered metal or plastic particles, glass, ceramic materials and paper, and may be treated with silicones. Examples of filter material are given. The housing and the elements may be bonded by welding.
Patent GB-1033672-A (GB)
Title: Improvements in lifting barriers
Inventor: PARKER GEORGE ROBERTSON
IPC: E01F13/06
Filed: 1963-02-21
Abstract: 1,033,672. Railway barriers. GODWIN WARREN (ENGINEERING) Ltd. Feb. 21, 1963, No. 47819/65. Divided out of 1,033,671. Heading E1G. A channel member for the boom of a lifting barrier has a tubular structure c with a pair of outwardly projecting arms 28 whose rounded end surfaces 29 define a gap narrower than the width of the tubular structure. A skirt of individual bars 33 hung on bolts 26 is suspended from a channel member 31 having recesses 33 to mate with the ends of the arms 28.
Patent GB-1491003-A (GB)
Title: Dc-dc converter for a liquid crystal display device of a timepiece
IPC: G04G19/02
Filed: 1974-11-06
Abstract: 1491003 D.C.-D.C. converters DAINI SEIKOSHA KK 6 Nov 1974 [8 Nov 1973 26 Dec 1973] 48060/74 Heading H2F [Also in Division G3] In or for an electronic watch or other electronic timepiece, a D.C.-D.C. converter comprises a transistor Q 3  having the primary winding T 3 <SP>1</SP> of a transformer T<SP>1</SP> connected in the collector circuit and a secondary winding T 4  having n times the number of turns of T 3 <SP>1</SP> connected in series with a time constant C 3 , R 3  in the base circuit of Q 3  and a rectifier connected between winding T 4  and D.C. output terminals t 3 , t 4  in such a way that the output voltage is equal to (n + 1) times the input D.C. voltage 14. The source 14 is preferably a 1À5 v. silver oxide cell giving an output voltage across t 3 , t 4  of 6 v. when n=3. Time constant C 3 , R 3  allows the circuit to operate as a blocking oscillator, the negative half-cycles of which are rectified by D 3  and the positive oscillation at the end of each pulse limited by diode D 2 . The 6 v. output is used for energizing a liquid crystal display. Capacitor C 4  is made much larger (e.g. 20,000 pF) than is needed to smooth the 100 microsecond period of the blocking oscillator, so as to store energy in the event of intermittent connection of cell 14. Fig. 2 (not shown) depicts a known D.C.-D.C. converter in which the output of a third winding of the transformer is rectified. Fig. 1 (not shown) depicts the block diagram of an electronic watch comprising a crystal oscillator feeding a driving circuit for a liquid crystal display, power for the driving circuit being derived partly from a battery and partly from a D.C.-D.C. converter.
Patent GB-1087300-A (GB)
Title: Improved wired broadcasting systems and apparatus therefor
Inventor: PALMER LEONARD SIDNEY
IPC: H04N7/10
Filed: 1963-12-05
Abstract: 1,087,300. Colour television distribution system. COMMUNICATIONS PATENTS Ltd. Dec. 2, 1964 [Dec. 5, 1963], No. 48077/63. Heading H4R. A transmitter for a colour television distribution system applies to the system a modulated carrier wave brightness information component and a suppressed carrier colour information component in which the carrier frequencies differ one from the other by an odd multiple of half the line scan frequency and the frequency of the brightness information component carrier is a whole multiple of the line scan frequency plus or minus an odd multiple of one quarter the frame scan frequency. The system ensures that beats of the carriers or their harmonics of about an even multiple of the line scan frequency differ in frequency by an odd multiple of half the frame scan frequency so that the effect on the reproduced picture is minimal. Alternative programmes may be distributed over separate pairs of conductors in the network, the carrier frequencies differing by a few kc./s. or, if the isolation between the pairs is sufficient, they may be substantially identical. The brightness information signal, which include colour bursts and synchronizing signals, and suppressed carrier wave colour signals may be extracted from broadcast signals and applied to the wired distribution system via a balanced modulator fed with a carrier from an oscillator having an oven-controlled crystal. If the system is applied to a 625 line NTSC system, the carrier frequency may be 5406À2625 kc./s. with a suppressed carrier frequency for the colour information at about 9830 kc./s. A receiver of conventional type for NTSC transmissions is described with reference to Fig. 3 (not shown).
Patent GB-1418969-A (GB)
Title: Method of making integrated circuits
IPC: H01L21/285
Filed: 1973-10-16
Abstract: 1418969 Integrated circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Oct 1973 [16 Oct 1972] 48218/73 Heading H1K In making an integrated circuit, after diffusing impurity into regions at one face of a semiconductor wafer, the wafer is coated with an insulating layer and then with a photoresist layer having holes at specified positions. After etching the insulating layer to expose the wafer at the holes a metal layer is deposited overall to a thickness equal to that of the insulating layer, and the photoresist layer and overlying metal removed leaving the metal only in the holes. Finally metal strips are formed extending over and contacting this metal. As described the wafer is of N-type silicon with parallel diffused P + strips in its surface, the insulating layer of silicon dioxide 1 Á thick and the metal vapour deposited aluminium. The holes are located over the diffused strips and the metal strips, formed from an overall deposit by photoresist etching, are orthogonal to the diffused strips and of the same width as the holes.
Patent GB-1449387-A (GB)
Title: Benzylpyrimidine derivatives
IPC: C07C45/63
Filed: 1974-11-08
Abstract: 1449387 Benzylpyrimidines F HOFF- [8 Nov 1973 (2)] 48425/74 Heading C2C [Also MANNLA ROCHE & CO AG 8 Nov 1974 in Division A5] Novel compounds of Formula I wherein R<SP>1</SP> and R<SP>3</SP> are C 1-4  alkyl, R<SP>3</SP> is halogen, A is O attached to ring N and n is 0 or 1 are prepared by one of the following methods (a) guanidine is reacted with a compound of Formula IIa or IIb wherein R<SP>4</SP> is C 1-6  alkyl or both R 4  link to give C 1-6  alkylene and R<SP>5</SP> is a leaving group; (b) reacting ammonia with a compound of Formula III wherein X is Cl, Br alkylmercapto alkylsulphonyl or one may be amino; (c) reductively removing X<SP>1</SP> from a compound of Formula IV wherein X<SP>1</SP> is Cl, Br or OH; or (d) subjecting a compound of Formula I above where n = 0 to N oxidation. Intermediates are prepared as in divisional Specification 1,449,388.
Patent GB-1074489-A (GB)
Title: Production of cycloalkane oxidation products and of dibasic acids
IPC: C07C51/31
Filed: 1964-12-01
Abstract: A mixture suitable for oxidation by nitric acid to give purified dibasic acids is obtained by reacting a precursor cycloalkane with a molecular oxygen containing gas in the presence of a boric acid providing material, converting the cycloalkanol borate ester in the product to the cycloalkanol, recovering an oxygenated cycloalkane mixture containing cycloalkanol, cycloalkanone and an objectional amount of higher boiling residue, distilling a cycloalkanol/cycloalkanone fraction from a portion of the mixture and adding this fraction to the remaining portion to produce a mixture in which the amount of said residue is not over 14 parts per 100 parts by weight of oxygenated cycloalkane mixture. The mixture so obtained may be oxidized by nitric acid to give the corresponding dibasic carboxylic acid.  The process is particularly suitable for the oxidation of C6-C8 saturated cyclic hydrocarbons and examples are given of the oxidation of cyclohexane to give a mixture of cyclohexanol and cyclohexanone which is oxidized by nitric acid in the presence of ammonium metavanadate and copper.
Patent GB-1373761-A (GB)
Title: Method for the manufacture of a sleeve of a thermoplastic material
IPC: B29C53/60
Filed: 1971-10-22
Abstract: 1373761 Winding extruded material; seaming MANNESMANN AG 22 Oct 1971 [26 Oct 1970] 49250/71 Headings B5A and B5K [Also in Division F2] In a method of making a sleeve of thermoplastic material for use in coupling thermoplastic tubes, a heating wire coil 16, to be incorporated in the sleeve, is supported on a rotating mandrel 2 and a band 17 of thermoplastic material is fed from a long slit of an extruder 7 and wound about the heating coil to the desired thickness. The band 17 is stretched longitudinally by a roller 9. The ends of thermoplastic pipes to be coupled by the sleeve are inserted into the sleeve and an electric current is applied to the coil 16 to soften the material of the sleeve and pipe ends to effect welded joints. As shown, the mandrel 2 used in the method which is heated to about 150‹ C. carries steel bands 3 having bent ends 4 engaged in a slot 1. The ends of the wire coil are attached to projections 5 on the steel bands. A line of mandrels may be used, each successively moving past the extruder head 7. Rod-like reinforcing members, e.g. fibreglass-reinforced epoxy resin, may be wound into the sleeve layers. After application of the extruded material the ends of the sleeves are trimmed and the sleeves are removed from the mandrels. The steel bands are removed and holes are formed in the sleeve at the coil ends, which may carry connector eyelets, to facilitate connection of a current source to the coil. Two layers of different materials may be applied to the coil either by successive windings or from a single extruder slot fed from two extruders (14, 15) (Fig. 4, not shown). The inner layer adjacent the coil may be a copolymer of polyethylene and the outer layer of a high molecular weight plastics such as polyethylene of molecular weight in excess of 90,000. Preferably, the winding band for multilayer application is as wide as the length of the mandrel for convolute winding. In another arrangement, the mandrel is made of two interfitting parts (12) (Fig. 5, not shown) on either side of an annular bearing ring (11) which is incorporated in the sleeve to act as a stop for inserted pipes.