baber/WOPTO huggingface dataset:
Patent GB-735524-A (GB)
Title: Improvements in or relating to receivers for reproducing coloured or stereoscopic television images
IPC: H01J31/22
Filed: 1952-07-25
Abstract: 735,524. Colour and stereoscopic television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951]; No. 18859/52. Class 39 (1). In a colour or stereoscopic television receiver the electron beam before striking the luminescent or incandescent screen passes through two parallel wire grids 1, 2 in which the wires of one grid lie centrally behind the apertures of the other grid, the direct voltages on the grids and the field electrode 3 are higher than the cathode voltage, and an alternating voltage supplied to at least one grid produces a displacement of the point of impact of the beam on the screen for scanning different colour bands. The field electrode may be the luminescent screen itself which if not conductive should contain metal elements, or it is a metal grid or layer near to or integral with and on either side of the screen. The spacing of the grids is small and may be a fifth of the grid-field electrode spacing. The screen may carry strips of different luminescent materials or be backed by a filter composed of strips with different colour absorptions; alternatively the scanning image is focused on to a screen painted in strips of different colours arranged parallel to the grid wires. The colour filter may be replaced by polarizing filters for stereoscopic reproduction. Specifications 733,176 and 735,525 are referred to.
Patent GB-279564-A (GB)
Title: Methods of and means for continuous compressing and drying of the tobacco fillers in manufacturing cigars
IPC: A24C1/16
Filed: 1926-07-30
Abstract: 279,564. Aktiebolaget Formator, and Cranstedt, E. July 30, 1926. Cigar-making machines and appliances. - Fillers for cigars are compressed and dried in recesses in moulds, the two sides of the filler being alternately exposed in successive moulds, and transfer from mould to mould being effected automatically. Moulds in, the form of drums 6, 7 are rotatably mounted on shafts 4, 5 journaled in the frame of the machine, and are formed with equally spaced pockets 8 for the filiers. Guides 10, 11 are provided for slides 12 formed at their ends as dies 13 for co-operating with the filler pockets 8. The slides are actuated through links 15, 16, and a forked member 17 having a roller 18 which engages a cam-groove in a disc 20 secured to the shaft 4. The member 17 is also in one with arms 21 extending into the drums 6, 7, so that as a slide compresses one filler, a filler diametrally opposite thereto is transferred to the adjacent drum by pins 40 projecting from the arms 21, the pins being pushed through holes 9 in the base of the sockets 8. The drums are rbtated intermittently by means of cams 46, 28 secured to the shafts 4, 5. A three-armed lever. 22, 23, 42. Fig. 7, freely mounted on the shaft 4, and a lever 29, 30, similarly related to the shaft 5, are interconnected so that the drums move in unison. The cam 46 secured to the shaft 4 actuates a roller carried by the arm 43 of a second three-armed lever 43, 44, 45 pivoted to the arm 42 of the firstmentioned three-armed lever. The arm 45 is connected bv a rod 47 to a link 48 which is pivoted to a shaft 24 carried on the end of the arm 22. On this shaft 24 is mounted a pawl 25 which engages the filler recesses 8 in the drum 6. The drive from the cam 46 is also transmitted to the second drum by the levers and links 44, 91, 90, 23, 30, 33 and a second pawl 25. The movement transmitted by the cam 46 is combined with that from a second cam 28 on the shaft-5; a roller engaging this cam works also in the forked end of a rod 26 connected to the shaft 24. Cleaning devices for the recesses 8 are simultaneously actuated by means of arms 49 pivoted to the arms 22, 29 and of such a length that brushes 50 carried by them may enter the recesses 8. These brushes are rotated by flexible shafts driven by belt gearing from the shaft 50. The surfaces of the dies 13 are cleaned by reciprocating brushes 64, mounted on arms 62, 63, the hub 61 of which surrounds a stationary guide-bar 60 and is connected by linkwork to a cam 68 on the shaft 80. Mounted on the frame 2 are knives 36, 37 which cut off the parts of the filler projecting beyond the end surfaces of the drum 6.
Patent GB-439645-A (GB)
Title: Improvements in and relating to windshield devices for cockpits of aircraft or for equivalent spaces in other vehicles
IPC: B64C1/14
Filed: 1934-06-27
Abstract: 439,645. Vehicle opening-tops. PETTERS, Ltd., and DAVENPORT, A., Westland Aircraft Works, Yeovil, Somerset. June 27, 1934, No. 19028. [Class 108 (i)] [See also Group XXXIII] Windshielding means for a cockpit or equivalent space in a vehicle or aircraft comprises a rigid, sliding preferably transparent roof member carried in fixed guide surfaces above and below the member, the guide surfaces being disposed wholly outside the cockpit so that the roof member is retained and forms a cantilever structure in any partially open position. Fig. 3 shows an aeroplane cockpit in which the doors and transparent sliding roof e are fully open. Rollers on the roof engage guides d disposed entirely to the rear of the cockpit on a transparent fairing c. When closed the roof is supported by dowel pins g &c. engaging the fixed unsplinterable windscreen a, b and at its sides may engage additional guides m on the tops of the doors. Fig. 4 shows the invention applied to a motorcar, the sliding roof e being carried in fixed guides.d at the rear of the doors and in guides o in a backbone p extending to the windscreen frame q. Additional guides r are provided on the doors. The invention may be employed in conjunction with the shielding devices described in Specification 412,717, by lengthening the fixed part of the hood between the cockpits described in that Specification and by replacing the pilot's cover by a roof adapted to slide rearwardly over the fixed part of the hood. Specification 332,854, [Class 108 (i)], also is referred to.
Patent GB-443635-A (GB)
Title: Improvements in or relating to the manufacture of multi-ply fabrics and articles made therefrom
IPC: D06M17/02
Filed: 1934-06-27
Abstract: 443,635. Compound fabrics. SHEPHERD, T. L., 7, Park Lane, London. June 27, 1934, Nos. 19030 and 26239. Divided out of 444,012, [Group VII]. [Class 140] Multi-ply fabrics are made by immersing the plies in a cuprammonium solution of cellulose, which may have a solvent action on the fabric, pressing the plies together and then treating in a coagulating bath to precipitate the cellulose. The coagulating bath may comprise caustic soda or sulphuric acid, and be of sufficient strength to give either a mercerizing or a parchmentized finish. An interlining of blotting or other paper, a nappe of fibres, or other filling of vegetable origin may be inserted between the plies. A final coating of cellulose acetate, nitrocellulose or the like may be applied to the fabric by brushing, spraying, or otherwise, and dried in air, an inert gas, by heat or otherwise. Cut edges of the fabric may also be treated with a coating such as a solution of cellulose acetate, to prevent fraying. The plies are preferably passed through the cuprammonium solution at 30-40 yards per minute, the solution pressed well into the material, and excess removed by scrapers or squeezing rollers ; after treatment in the coagulating bath undesirable by-products may be eliminated by washing or acidification ; the fabric is then dried and calendered or ironed. The product is suitable for the manufacture of collars, cuffs, shirts, tablecloths, napkins, millinery, and the like.
Patent GB-1172253-A (GB)
Title: Improvements in or relating to Automatically Controlled Magnetizing Systems
Inventor: SCHROEDER KENNETH WALLACE
IPC: G01R33/12
Filed: 1967-04-25
Abstract: 1,172,253 Detecting flaws. MAGNAFLUX CORP. April 25, 1967, No. 19081/67. Heading G1N. [Also in Division G4] Magnetic inspection apparatus, of the type wherein a part to be tested is magnetized by passing a current therethrough or through a coil inductively coupled to the part and wherein magnetic particles in dry or fluid form are applied to the surface of the part during or after magnetization, is provided with an automatic control system for maintaining the magnetizing current at a predetermined value irrespective of changes in supply voltage or circuit resistance. As shown, magnetizing current for the part 11 or a coil 16 is supplied from a transformer/rectifier unit 20, 26 energized from an A. C. supply 31, 32 through a saturable reactor 28, whose D.C. control coil 30 is supplied from a transformer 36, rectifier 43 and silicon controlled rectifier 44. A signal representative of magnetizing current is obtained from a current transformer 66 and, after rectification, is applied to the emitter of a transistor 58 whose base receives a signal from a potentiometer 71 representative of the desired magnetizing current. Variation of current about this desired value switches transistors 49, 58 between their conductive and cut-off conditions to trigger or cutoff the rectifier 44 and so vary the current in the D.C. control coil 30 and hence the voltage applied to the primary winding 27 of the transformer 26. When the apparatus is first energized, the control system provides a rapid build-up of magnetizing current which breaks down the insulation between the part and its contact electrodes and prevents subsequent overheating.
Patent GB-1143943-A (GB)
Title: Production of unsaturated esters of phthalic acid by transesterification
Inventor: STEEL DEREK KENNETH VINCENT
IPC: E21D23/16
Filed: 1965-05-06
Abstract: 1,143,943. Allyl esters of phthalic acids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 April, 1966 [6 May, 1965], No. 19174/65. Heading C2C. Allyl esters of ortho-, iso- or terephthalic acid are produced by heating allyl acetate with the methyl, ethyl or isopropyl ester of ortho-, iso- or terephthalic acid in the presence of a titanium or zirconium alkoxide as catalyst. Suitable alkoxides are, for example, those of allyl alcohol or titanium isopropoxide, n-propoxide or iso-propoxide. Preferably the allyl acetate is present in excess. The catalyst may be removed from the reaction mixture by treating it with activated charcoal and the resulting solution then distilled to give the required ester.
Patent GB-1219655-A (GB)
Title: Bolt with rotation restrainer
IPC: F16B39/28
Filed: 1968-04-24
Abstract: 1,219,655. Anchoring bolts. STANDARD PRESSED STEEL CO. 24 April, 1968 [26 April, 1967], No. 19303/68. Heading F2H. A bolt 12 is anchored to a workpiece to prevent rotation of the bolt by a member 14 secured to the top of the bolt head 22. Three rivet shanks 24, 26, 28 extend from the bolt head and engage corresponding holes in the member 14 to secure the member to the bolt. A leg 32 of the member 14 is adapted to engage the edge of or a hole in the workpiece to prevent rotation of the bolt. In a modification, a single, square rivet is formed on the head of the bolt and engages a square hole in the member 14. The four comers of the rivet are riveted over the member to secure it to the bolt.
Patent GB-357961-A (GB)
IPC: A41B11/02
Filed: 1930-06-25
Abstract: 357,961. Overstockings; gaiters. SCHONFELD, P., 2B, Prinzenstrasse, Chemnitz, Germany June 25, 1930, No. 19309. Convention date, July 4, 1929. [Classes 17 (ii) and 141.] A protective overstocking 1 of knitted material for wear over a shoe inside an overshoe to protect the shoe, and partly also the stocking, from being soiled is made at those parts most subject to wear, such as the toe 3 and heel 6, of closely woven textile material, such as ticking, the edges of the insertions 3, 6 and stocking 1 being sewn, knitted, or otherwise joined together. Specifications 136,502 and 144,909, [both in Class 141, Wearing-apparel], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also reinforcing ordinary stockings and socks in this manner. This subjectmatter does not appear in the Specification as accepted.
Patent GB-694574-A (GB)
Title: Improvements in or relating to time mechanisms
IPC: G04B15/10
Filed: 1950-08-02
Abstract: 694,574. Clockwork escapements. SIEMENSSCHUCKERTWERKE AKT.-GES. Aug. 2, 1950 [Oct. 1, 1948]. No. 19347/50. Class 139. A time mechanism comprises an escapement wheel . driven from the movement train of the time mechanism, an escapement lever periodically and mechanically locking the escapement wheel and, with the interposition of a predetermined lost motion, moved backwards and forwards by a movement regulator and an energy storage means between the movement regulator and the escapement wheel which is loaded by the escapement wheel with movement of the latter relative to the escapement lever, and is unloaded to the movement regulator during the lost motion between the escapement lever and the movement regulator. In the embodiment described a pendulum 3 carries a. slotted permanent magnet 4 which co-operates successively with the teeth 2 of an escape wheel 1 of magnetic material and a pair .of stops 6 by which it effects rocking of the escapement lever or anchor 8 the pallets 7 of which alternately free and lock the escape wheel 1. In the middle part of a pendulum swing as the gap 5 in the magnet 4 moves towards the uppermost tooth 2 an impulse' is imparted to the magnet 4 and the pendulum 3 by the magnetic force between the said escape wheel tooth and the magnet. At the end of the swing a stop 6 moves the anchor 8 to free the escape wheel 1 and as the wheel rotates the magnetic energy storing means consisting of the magnet 4 and the teeth 2 is charged or loaded. In the next swing of the pendulum it receives an impulse asabove described when the energy storing means is unloaded.
Patent GB-680543-A (GB)
Title: Improvements in or relating to purifier grids in coal-gas and water-gas purifying apparatus and the like
IPC: C10K1/24
Filed: 1949-07-22
Abstract: 680,543. Gas purifiers and scrubbers. SADLER, J. R., and CROSBY & CO. Ltd. July 24, 1950 [July 22, 1949], No. 19407/49. Class 55 (ii) Grids in gas purifiers, scrubbers or coolers comprise an assembly of spaced parallel laths 13 arranged in two or more longitudinal groups with their overlapping ends being secured together by transverse rods or dowels 17, 18, the outermost laths being spaced by washers 19. The assembly is supported as an inflexible unit between a pair of rigid battens 11, 12. The laths may be keyed together in pairs by tongues and grooves extending either transversely or in the direction of the length of the laths. In a modification the interengaging lath ends are narrowed so that the lath spacing is less than the lath width. Wood dowels used in place of metal to rods are coated with adhesive, preferably a synthetic resin bonded glue and may be dried by high frequency heating. The interengaging faces are also glued.
Patent GB-493572-A (GB)
Title: Improvements in cloth laying machines
IPC: A41H43/00
Filed: 1937-07-14
Abstract: 493,572. Folding fabrics. WALKER, H., PARR, H., and SMITH, W. H., (trading as WALKER & CO., T.), and -SMITH, J. N. July 14, 1937, No. 19468. [Class 42 (ii)] When folding fabric on a table A by means of a reciprocating carriage B which carries the roll or batch of fabric B<1>, the ends of the folds are determined by rods c<1> pivoted on vertical pins c<2> on arms c<3> pivoted on horizontal shafts c<4>. Arms D are fixed to the shafts c' and arms D are loose thereon. At the end of each stroke of the carriage a bracket b<7> thereon engages first the arms D<1> and through link d moves the rods c<1> out at the sides of the pile of cloth as shown in Fig. 3, and then it engages the arms D to lift the rods as shown in Fig. 2. The rods are then moved inwards and lowered on to the fabric which is folded back over them. Straight or cam-shaped posts E, rollers e<1> on the arm c<3>, and spring mounting of the shafts c' ensure the vertical movement of the rods c<1> in the vicinity of the pile of fabric. The delivery rollers b<3> are gradually raised by a screw, gearing, &c. b<4>, b<5> as piling proceeds.
Patent GB-1153193-A (GB)
Title: Photographic Colour Development Process
Inventor: CRESSMAN HOMER WILLIAM JOHN
IPC: G03C7/18
Filed: 1966-05-03
Abstract: 1,153,193. Colour couplers. EASTMAN KODAK CO. 3 May, 1966, No. 19500/66. Heading C2C. [Also in Division G2] Compounds of the formulµ wherein R represents an alkoxy, cycloalkoxy, amide or sulphonamide group, R<SP>1</SP> represents H, a C 1-22  alkyl, a cycloalkyl or an aryl group, and either each of R<SP>2</SP> and R<SP>3</SP> is H, halogen, C 1-22  alkyl or a group as defined for R, or R<SP>2</SP> and R<SP>3</SP> together are the atoms which complete a 5- or 6-membered carbocyclic or heterocyclic ring, R<SP>2</SP> and R<SP>3</SP> not completing a naphthalene nucleus in Formula I when R<SP>1</SP> is H, each of the groups R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> possibly being substituted, or the salts thereof, are obtained from the corresponding compound having an aldehyde group in the para position to the phenolic OH group by reaction with an amine R<SP>1</SP>NH 2  and reduction of the resulting imine. Examples are given.
Patent GB-1393792-A (GB)
Title: Field effect transistor
IPC: H01L29/10
Filed: 1972-04-27
Abstract: 1393792 Semi-conductor devices HANDOTAI KENKYU SHINKOKAI 27 April 1972 [28 April 1971] 19619/72 Heading H1K A junction-gate field effect transistor in which the source-drain current does not saturate as a function of source-drain voltage satisfies the condition Rs.g m <1, where Rs=source-drain series resistance and g m =transconductance. Fig. 5 illustrates a Si or Ge embodiment having P type gate regions 12, 12a projecting into a semi-conductor body at the interface between an N<SP>+</SP> layer 14 and and N- layer 15, ohmic source and drain contacts 9, 10 being situated on the layers 14, 15 respectively. The layers 14, 15 may be replaced by a single homogeneous semiconductor body, and alternative shapes for the inwardly-projecting gate regions 12, 12a are also disclosed: The Fig. 5 structure may be modified by the provision of an intrinsic layer between the layers 14, 15 to the side of the gate regions 12, 12a nearest the N- layer 15. In this case a grid shaped P type gate region may also be provided in addition to the regions 12, 12a, the N- layer 15 then being replaced by a second N<SP>+</SP> layer.
Patent GB-1505850-A (GB)
Title: Preparing a metal sheet member for joining to a second metal member
IPC: E02F3/815
Filed: 1975-05-09
Abstract: 1505850 Welding by fusion CATERPILLAR TRACTOR CO 9 May 1975 [13 May 1974] 19703/75 Heading B3R [Also in Division E1] A metal sheet member 16 is prepared for welding to a second metal member 18 by forming a groove 24 and simultaneously, from the metal displaced therefrom, a dam 26 in contiguous relation to the groove. On welding, a corner of the second member 18 is closely adjacent to the groove 24 and the dam 26, and the groove and dam prevent "blow-through". Apparatus for forming the groove and dam (Fig. 3) has two guide members 28, 29 each having a pair of rollers 30, 30 and 31, 32 in order to guide the sheet member 16 as a rotary forming roll 33 on the guide member 29 forms the groove and dam by displacing metal upwardly.
Patent GB-1129574-A (GB)
Title: Process for the manufacture of sorbic acid
IPC: C07C51/09
Filed: 1967-04-28
Abstract: 1,129,574. Sorbic acid. WACKER-CHEMIE G.m.b.H. 28 April, 1967 [13 May, 1966], No. 19753/67. Heading C2C. Sorbic acid is prepared by reacting ketene with crotonaldehyde in a continuous process at between 70‹ and 110‹ C. in the presence of a tetraalkyl titanate or a tetraalkyl titanate condensation product, followed by conversion to sorbic acid for example by thermal decomposition or alkaline saponification and the subsequent acid elimination of water. The alkyl groups of the tetraalkyl titanates are straight-chain or branched with 2-18 C atoms, and the crotonaldehyde is preferably anhydrous and may contain as a stabilizer a sterically hindered phenol. A suitable reactor is described with examples using tetra-n-butyl, tetra-nhexyl, tetraethyl, tetra-iso-propyl and polydibutyl titanates.
Patent GB-721397-A (GB)
Title: Improvements in and relating to insecticide- and like spraying equipment
IPC: B05B9/047
Filed: 1952-08-07
Abstract: 721,397. Forcing liquids under pressure. SMITH, A. P., FLETCHER, G., and DRAKE & FLETCHER, Ltd. July 21, 1953. [Aug. 7, 1952; Dec. 5, 1952] Nos. 19939/52 and 30914/52. Class 102 (2). [Also in Group XXIX] A knapsack sprayer comprises a closed rigid container 1, a flexible liquid containing bag 12, and a valve box 2 through which liquid insecticide is fed to the bag via a pipe 3 and from which it is delivered to a spraying nozzle via a pipe 5. The bag neck is detachably secured to the container outlet and compressed air is fed through a non-return valve 14 into the space between the container and bag to eject the insecticide from the bag. A perforated metal cylinder 15 may be fitted to prevent the bag fouling the container outlet, and a filler disc 16 may also be provided. Upward movement of the valve ball 4 is limited by a split spring ring or by providing the disc 16 with a downwardly projecting dished part, Fig. 2. A rod 18 with a screwed-on ball may also support the collapsed bag.
Patent GB-128842-A (GB)
Title: Improvements in Sparking Plugs for Internal Combustion Engines.
Inventor: SUCKLING WILLIAM
IPC: H01T13/36
Filed: 1918-12-03
Abstract: 128,842. Suckling, W., Suckling, J., and Carter, B. Dec. 3, 1918. Joint-making packing.- Soft-metal rings g are forced into the annular space between adjacent conical surfaces on the insulator and casing by a punch provided with resilient tongues adapted to follow the rings as they increase in diameter receding to their original position on withdrawal.
Patent GB-353216-A (GB)
Title: Improvements relating to illuminating appliances
IPC: F21V3/00
Filed: 1930-07-01
Abstract: 353,216. Glazing. HOLOPHANE, Ltd. and STROUD, E., Elverton Street, Vincent Square, London. July 1, 1930, No. 19973. [Class 20 (iii).] In a method of securing together glass plates for illuminating fittings in which a number of plates meet at a corner, the strips carrying the glass are clamped between a coupling member and a locking member each having a number of radial arms. Each of the arms B<1> .. B<4> of the coupling members B is of angular section and at its outer end is formed with an inwardly projecting rib C having an overhanging lug D. Each strip A is provided at its end with a slot of slightly greater length than the rib C. In assembling the fitting the slot is pressed down over the rib and the strip then slid inwardly towards the centre of the coupling member and beneath the lug D. The strip is clamped by means of a spider F each radial arm of which is formed with a rib G adapted to engage with the inner end of the slot. The spider F and member B are held together by a screw K, washer L and nut M.
Patent GB-334982-A (GB)
Title: Improved friction pivot for windows
IPC: E05D7/08
Filed: 1929-06-29
Abstract: 334,982. Thomson Beacon Windows, Ltd., J., Imbery, F. C., and Mason, F. D. June 29, 1929. Pivoting adjustments. - In a pivot for fan lights or casement windows, a trunnion C on the window is mounted in a socket A fixed to the frame and a pair of brake shoes E pivoted upon the base of the socket A can be brought to bear upon the inner surface of the trunnion C by means of a wedge piece F mounted to slide in the socket base and provided with a screwed stem G.